Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Testsuite for eBPF verifier |
| 3 | * |
| 4 | * Copyright (c) 2014 PLUMgrid, http://plumgrid.com |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of version 2 of the GNU General Public |
| 8 | * License as published by the Free Software Foundation. |
| 9 | */ |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 10 | |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 11 | #include <endian.h> |
Alexei Starovoitov | 1da8ac7 | 2017-03-10 22:05:55 -0800 | [diff] [blame] | 12 | #include <asm/types.h> |
| 13 | #include <linux/types.h> |
Mickaël Salaün | 702498a | 2017-02-10 00:21:44 +0100 | [diff] [blame] | 14 | #include <stdint.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 15 | #include <stdio.h> |
Mickaël Salaün | 702498a | 2017-02-10 00:21:44 +0100 | [diff] [blame] | 16 | #include <stdlib.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 17 | #include <unistd.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 18 | #include <errno.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 19 | #include <string.h> |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 20 | #include <stddef.h> |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 21 | #include <stdbool.h> |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 22 | #include <sched.h> |
| 23 | |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 24 | #include <sys/capability.h> |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 25 | #include <sys/resource.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 26 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 27 | #include <linux/unistd.h> |
| 28 | #include <linux/filter.h> |
| 29 | #include <linux/bpf_perf_event.h> |
| 30 | #include <linux/bpf.h> |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 31 | |
Mickaël Salaün | 2ee89fb | 2017-02-10 00:21:38 +0100 | [diff] [blame] | 32 | #include <bpf/bpf.h> |
| 33 | |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 34 | #ifdef HAVE_GENHDR |
| 35 | # include "autoconf.h" |
| 36 | #else |
| 37 | # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) |
| 38 | # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 |
| 39 | # endif |
| 40 | #endif |
| 41 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 42 | #include "../../../include/linux/filter.h" |
| 43 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 44 | #ifndef ARRAY_SIZE |
| 45 | # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
| 46 | #endif |
| 47 | |
| 48 | #define MAX_INSNS 512 |
| 49 | #define MAX_FIXUPS 8 |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 50 | #define MAX_NR_MAPS 4 |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 51 | |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 52 | #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0) |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 53 | #define F_LOAD_WITH_STRICT_ALIGNMENT (1 << 1) |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 54 | |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 55 | struct bpf_test { |
| 56 | const char *descr; |
| 57 | struct bpf_insn insns[MAX_INSNS]; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 58 | int fixup_map1[MAX_FIXUPS]; |
| 59 | int fixup_map2[MAX_FIXUPS]; |
| 60 | int fixup_prog[MAX_FIXUPS]; |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 61 | int fixup_map_in_map[MAX_FIXUPS]; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 62 | const char *errstr; |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 63 | const char *errstr_unpriv; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 64 | enum { |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 65 | UNDEF, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 66 | ACCEPT, |
| 67 | REJECT |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 68 | } result, result_unpriv; |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 69 | enum bpf_prog_type prog_type; |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 70 | uint8_t flags; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 71 | }; |
| 72 | |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 73 | /* Note we want this to be 64 bit aligned so that the end of our array is |
| 74 | * actually the end of the structure. |
| 75 | */ |
| 76 | #define MAX_ENTRIES 11 |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 77 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 78 | struct test_val { |
| 79 | unsigned int index; |
| 80 | int foo[MAX_ENTRIES]; |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 81 | }; |
| 82 | |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 83 | static struct bpf_test tests[] = { |
| 84 | { |
| 85 | "add+sub+mul", |
| 86 | .insns = { |
| 87 | BPF_MOV64_IMM(BPF_REG_1, 1), |
| 88 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), |
| 89 | BPF_MOV64_IMM(BPF_REG_2, 3), |
| 90 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), |
| 91 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), |
| 92 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), |
| 93 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), |
| 94 | BPF_EXIT_INSN(), |
| 95 | }, |
| 96 | .result = ACCEPT, |
| 97 | }, |
| 98 | { |
| 99 | "unreachable", |
| 100 | .insns = { |
| 101 | BPF_EXIT_INSN(), |
| 102 | BPF_EXIT_INSN(), |
| 103 | }, |
| 104 | .errstr = "unreachable", |
| 105 | .result = REJECT, |
| 106 | }, |
| 107 | { |
| 108 | "unreachable2", |
| 109 | .insns = { |
| 110 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| 111 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 112 | BPF_EXIT_INSN(), |
| 113 | }, |
| 114 | .errstr = "unreachable", |
| 115 | .result = REJECT, |
| 116 | }, |
| 117 | { |
| 118 | "out of range jump", |
| 119 | .insns = { |
| 120 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| 121 | BPF_EXIT_INSN(), |
| 122 | }, |
| 123 | .errstr = "jump out of range", |
| 124 | .result = REJECT, |
| 125 | }, |
| 126 | { |
| 127 | "out of range jump2", |
| 128 | .insns = { |
| 129 | BPF_JMP_IMM(BPF_JA, 0, 0, -2), |
| 130 | BPF_EXIT_INSN(), |
| 131 | }, |
| 132 | .errstr = "jump out of range", |
| 133 | .result = REJECT, |
| 134 | }, |
| 135 | { |
| 136 | "test1 ld_imm64", |
| 137 | .insns = { |
| 138 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 139 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 140 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 141 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 142 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 143 | BPF_MOV64_IMM(BPF_REG_0, 2), |
| 144 | BPF_EXIT_INSN(), |
| 145 | }, |
| 146 | .errstr = "invalid BPF_LD_IMM insn", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 147 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 148 | .result = REJECT, |
| 149 | }, |
| 150 | { |
| 151 | "test2 ld_imm64", |
| 152 | .insns = { |
| 153 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 154 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 155 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 156 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 157 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 158 | BPF_EXIT_INSN(), |
| 159 | }, |
| 160 | .errstr = "invalid BPF_LD_IMM insn", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 161 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 162 | .result = REJECT, |
| 163 | }, |
| 164 | { |
| 165 | "test3 ld_imm64", |
| 166 | .insns = { |
| 167 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 168 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 169 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 170 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 171 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 172 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 173 | BPF_EXIT_INSN(), |
| 174 | }, |
| 175 | .errstr = "invalid bpf_ld_imm64 insn", |
| 176 | .result = REJECT, |
| 177 | }, |
| 178 | { |
| 179 | "test4 ld_imm64", |
| 180 | .insns = { |
| 181 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 182 | BPF_EXIT_INSN(), |
| 183 | }, |
| 184 | .errstr = "invalid bpf_ld_imm64 insn", |
| 185 | .result = REJECT, |
| 186 | }, |
| 187 | { |
| 188 | "test5 ld_imm64", |
| 189 | .insns = { |
| 190 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 191 | }, |
| 192 | .errstr = "invalid bpf_ld_imm64 insn", |
| 193 | .result = REJECT, |
| 194 | }, |
| 195 | { |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 196 | "test6 ld_imm64", |
| 197 | .insns = { |
| 198 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 199 | BPF_RAW_INSN(0, 0, 0, 0, 0), |
| 200 | BPF_EXIT_INSN(), |
| 201 | }, |
| 202 | .result = ACCEPT, |
| 203 | }, |
| 204 | { |
| 205 | "test7 ld_imm64", |
| 206 | .insns = { |
| 207 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), |
| 208 | BPF_RAW_INSN(0, 0, 0, 0, 1), |
| 209 | BPF_EXIT_INSN(), |
| 210 | }, |
| 211 | .result = ACCEPT, |
| 212 | }, |
| 213 | { |
| 214 | "test8 ld_imm64", |
| 215 | .insns = { |
| 216 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1), |
| 217 | BPF_RAW_INSN(0, 0, 0, 0, 1), |
| 218 | BPF_EXIT_INSN(), |
| 219 | }, |
| 220 | .errstr = "uses reserved fields", |
| 221 | .result = REJECT, |
| 222 | }, |
| 223 | { |
| 224 | "test9 ld_imm64", |
| 225 | .insns = { |
| 226 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), |
| 227 | BPF_RAW_INSN(0, 0, 0, 1, 1), |
| 228 | BPF_EXIT_INSN(), |
| 229 | }, |
| 230 | .errstr = "invalid bpf_ld_imm64 insn", |
| 231 | .result = REJECT, |
| 232 | }, |
| 233 | { |
| 234 | "test10 ld_imm64", |
| 235 | .insns = { |
| 236 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), |
| 237 | BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1), |
| 238 | BPF_EXIT_INSN(), |
| 239 | }, |
| 240 | .errstr = "invalid bpf_ld_imm64 insn", |
| 241 | .result = REJECT, |
| 242 | }, |
| 243 | { |
| 244 | "test11 ld_imm64", |
| 245 | .insns = { |
| 246 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), |
| 247 | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), |
| 248 | BPF_EXIT_INSN(), |
| 249 | }, |
| 250 | .errstr = "invalid bpf_ld_imm64 insn", |
| 251 | .result = REJECT, |
| 252 | }, |
| 253 | { |
| 254 | "test12 ld_imm64", |
| 255 | .insns = { |
| 256 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 257 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), |
| 258 | BPF_RAW_INSN(0, 0, 0, 0, 1), |
| 259 | BPF_EXIT_INSN(), |
| 260 | }, |
| 261 | .errstr = "not pointing to valid bpf_map", |
| 262 | .result = REJECT, |
| 263 | }, |
| 264 | { |
| 265 | "test13 ld_imm64", |
| 266 | .insns = { |
| 267 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 268 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), |
| 269 | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), |
| 270 | BPF_EXIT_INSN(), |
| 271 | }, |
| 272 | .errstr = "invalid bpf_ld_imm64 insn", |
| 273 | .result = REJECT, |
| 274 | }, |
| 275 | { |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 276 | "no bpf_exit", |
| 277 | .insns = { |
| 278 | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), |
| 279 | }, |
| 280 | .errstr = "jump out of range", |
| 281 | .result = REJECT, |
| 282 | }, |
| 283 | { |
| 284 | "loop (back-edge)", |
| 285 | .insns = { |
| 286 | BPF_JMP_IMM(BPF_JA, 0, 0, -1), |
| 287 | BPF_EXIT_INSN(), |
| 288 | }, |
| 289 | .errstr = "back-edge", |
| 290 | .result = REJECT, |
| 291 | }, |
| 292 | { |
| 293 | "loop2 (back-edge)", |
| 294 | .insns = { |
| 295 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 296 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), |
| 297 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), |
| 298 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| 299 | BPF_EXIT_INSN(), |
| 300 | }, |
| 301 | .errstr = "back-edge", |
| 302 | .result = REJECT, |
| 303 | }, |
| 304 | { |
| 305 | "conditional loop", |
| 306 | .insns = { |
| 307 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 308 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), |
| 309 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), |
| 310 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), |
| 311 | BPF_EXIT_INSN(), |
| 312 | }, |
| 313 | .errstr = "back-edge", |
| 314 | .result = REJECT, |
| 315 | }, |
| 316 | { |
| 317 | "read uninitialized register", |
| 318 | .insns = { |
| 319 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 320 | BPF_EXIT_INSN(), |
| 321 | }, |
| 322 | .errstr = "R2 !read_ok", |
| 323 | .result = REJECT, |
| 324 | }, |
| 325 | { |
| 326 | "read invalid register", |
| 327 | .insns = { |
| 328 | BPF_MOV64_REG(BPF_REG_0, -1), |
| 329 | BPF_EXIT_INSN(), |
| 330 | }, |
| 331 | .errstr = "R15 is invalid", |
| 332 | .result = REJECT, |
| 333 | }, |
| 334 | { |
| 335 | "program doesn't init R0 before exit", |
| 336 | .insns = { |
| 337 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), |
| 338 | BPF_EXIT_INSN(), |
| 339 | }, |
| 340 | .errstr = "R0 !read_ok", |
| 341 | .result = REJECT, |
| 342 | }, |
| 343 | { |
Alexei Starovoitov | 32bf08a | 2014-10-20 14:54:57 -0700 | [diff] [blame] | 344 | "program doesn't init R0 before exit in all branches", |
| 345 | .insns = { |
| 346 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 347 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 348 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), |
| 349 | BPF_EXIT_INSN(), |
| 350 | }, |
| 351 | .errstr = "R0 !read_ok", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 352 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 32bf08a | 2014-10-20 14:54:57 -0700 | [diff] [blame] | 353 | .result = REJECT, |
| 354 | }, |
| 355 | { |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 356 | "stack out of bounds", |
| 357 | .insns = { |
| 358 | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), |
| 359 | BPF_EXIT_INSN(), |
| 360 | }, |
| 361 | .errstr = "invalid stack", |
| 362 | .result = REJECT, |
| 363 | }, |
| 364 | { |
| 365 | "invalid call insn1", |
| 366 | .insns = { |
| 367 | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), |
| 368 | BPF_EXIT_INSN(), |
| 369 | }, |
| 370 | .errstr = "BPF_CALL uses reserved", |
| 371 | .result = REJECT, |
| 372 | }, |
| 373 | { |
| 374 | "invalid call insn2", |
| 375 | .insns = { |
| 376 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), |
| 377 | BPF_EXIT_INSN(), |
| 378 | }, |
| 379 | .errstr = "BPF_CALL uses reserved", |
| 380 | .result = REJECT, |
| 381 | }, |
| 382 | { |
| 383 | "invalid function call", |
| 384 | .insns = { |
| 385 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), |
| 386 | BPF_EXIT_INSN(), |
| 387 | }, |
Daniel Borkmann | e00c7b2 | 2016-11-26 01:28:09 +0100 | [diff] [blame] | 388 | .errstr = "invalid func unknown#1234567", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 389 | .result = REJECT, |
| 390 | }, |
| 391 | { |
| 392 | "uninitialized stack1", |
| 393 | .insns = { |
| 394 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 395 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 396 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 397 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 398 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 399 | BPF_EXIT_INSN(), |
| 400 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 401 | .fixup_map1 = { 2 }, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 402 | .errstr = "invalid indirect read from stack", |
| 403 | .result = REJECT, |
| 404 | }, |
| 405 | { |
| 406 | "uninitialized stack2", |
| 407 | .insns = { |
| 408 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 409 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), |
| 410 | BPF_EXIT_INSN(), |
| 411 | }, |
| 412 | .errstr = "invalid read from stack", |
| 413 | .result = REJECT, |
| 414 | }, |
| 415 | { |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 416 | "invalid fp arithmetic", |
| 417 | /* If this gets ever changed, make sure JITs can deal with it. */ |
| 418 | .insns = { |
| 419 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 420 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 421 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8), |
| 422 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| 423 | BPF_EXIT_INSN(), |
| 424 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 425 | .errstr_unpriv = "R1 subtraction from stack pointer", |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 426 | .result_unpriv = REJECT, |
| 427 | .errstr = "R1 invalid mem access", |
| 428 | .result = REJECT, |
| 429 | }, |
| 430 | { |
| 431 | "non-invalid fp arithmetic", |
| 432 | .insns = { |
| 433 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 434 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 435 | BPF_EXIT_INSN(), |
| 436 | }, |
| 437 | .result = ACCEPT, |
| 438 | }, |
| 439 | { |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 440 | "invalid argument register", |
| 441 | .insns = { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 442 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 443 | BPF_FUNC_get_cgroup_classid), |
| 444 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 445 | BPF_FUNC_get_cgroup_classid), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 446 | BPF_EXIT_INSN(), |
| 447 | }, |
| 448 | .errstr = "R1 !read_ok", |
| 449 | .result = REJECT, |
| 450 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 451 | }, |
| 452 | { |
| 453 | "non-invalid argument register", |
| 454 | .insns = { |
| 455 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 456 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 457 | BPF_FUNC_get_cgroup_classid), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 458 | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 459 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 460 | BPF_FUNC_get_cgroup_classid), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 461 | BPF_EXIT_INSN(), |
| 462 | }, |
| 463 | .result = ACCEPT, |
| 464 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 465 | }, |
| 466 | { |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 467 | "check valid spill/fill", |
| 468 | .insns = { |
| 469 | /* spill R1(ctx) into stack */ |
| 470 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 471 | /* fill it back into R2 */ |
| 472 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 473 | /* should be able to access R0 = *(R2 + 8) */ |
Daniel Borkmann | f91fe17 | 2015-03-01 12:31:41 +0100 | [diff] [blame] | 474 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ |
| 475 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 476 | BPF_EXIT_INSN(), |
| 477 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 478 | .errstr_unpriv = "R0 leaks addr", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 479 | .result = ACCEPT, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 480 | .result_unpriv = REJECT, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 481 | }, |
| 482 | { |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 483 | "check valid spill/fill, skb mark", |
| 484 | .insns = { |
| 485 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), |
| 486 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), |
| 487 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| 488 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 489 | offsetof(struct __sk_buff, mark)), |
| 490 | BPF_EXIT_INSN(), |
| 491 | }, |
| 492 | .result = ACCEPT, |
| 493 | .result_unpriv = ACCEPT, |
| 494 | }, |
| 495 | { |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 496 | "check corrupted spill/fill", |
| 497 | .insns = { |
| 498 | /* spill R1(ctx) into stack */ |
| 499 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 500 | /* mess up with R1 pointer on stack */ |
| 501 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 502 | /* fill back into R0 should fail */ |
| 503 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 504 | BPF_EXIT_INSN(), |
| 505 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 506 | .errstr_unpriv = "attempt to corrupt spilled", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 507 | .errstr = "corrupted spill", |
| 508 | .result = REJECT, |
| 509 | }, |
| 510 | { |
| 511 | "invalid src register in STX", |
| 512 | .insns = { |
| 513 | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), |
| 514 | BPF_EXIT_INSN(), |
| 515 | }, |
| 516 | .errstr = "R15 is invalid", |
| 517 | .result = REJECT, |
| 518 | }, |
| 519 | { |
| 520 | "invalid dst register in STX", |
| 521 | .insns = { |
| 522 | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), |
| 523 | BPF_EXIT_INSN(), |
| 524 | }, |
| 525 | .errstr = "R14 is invalid", |
| 526 | .result = REJECT, |
| 527 | }, |
| 528 | { |
| 529 | "invalid dst register in ST", |
| 530 | .insns = { |
| 531 | BPF_ST_MEM(BPF_B, 14, -1, -1), |
| 532 | BPF_EXIT_INSN(), |
| 533 | }, |
| 534 | .errstr = "R14 is invalid", |
| 535 | .result = REJECT, |
| 536 | }, |
| 537 | { |
| 538 | "invalid src register in LDX", |
| 539 | .insns = { |
| 540 | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), |
| 541 | BPF_EXIT_INSN(), |
| 542 | }, |
| 543 | .errstr = "R12 is invalid", |
| 544 | .result = REJECT, |
| 545 | }, |
| 546 | { |
| 547 | "invalid dst register in LDX", |
| 548 | .insns = { |
| 549 | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), |
| 550 | BPF_EXIT_INSN(), |
| 551 | }, |
| 552 | .errstr = "R11 is invalid", |
| 553 | .result = REJECT, |
| 554 | }, |
| 555 | { |
| 556 | "junk insn", |
| 557 | .insns = { |
| 558 | BPF_RAW_INSN(0, 0, 0, 0, 0), |
| 559 | BPF_EXIT_INSN(), |
| 560 | }, |
| 561 | .errstr = "invalid BPF_LD_IMM", |
| 562 | .result = REJECT, |
| 563 | }, |
| 564 | { |
| 565 | "junk insn2", |
| 566 | .insns = { |
| 567 | BPF_RAW_INSN(1, 0, 0, 0, 0), |
| 568 | BPF_EXIT_INSN(), |
| 569 | }, |
| 570 | .errstr = "BPF_LDX uses reserved fields", |
| 571 | .result = REJECT, |
| 572 | }, |
| 573 | { |
| 574 | "junk insn3", |
| 575 | .insns = { |
| 576 | BPF_RAW_INSN(-1, 0, 0, 0, 0), |
| 577 | BPF_EXIT_INSN(), |
| 578 | }, |
| 579 | .errstr = "invalid BPF_ALU opcode f0", |
| 580 | .result = REJECT, |
| 581 | }, |
| 582 | { |
| 583 | "junk insn4", |
| 584 | .insns = { |
| 585 | BPF_RAW_INSN(-1, -1, -1, -1, -1), |
| 586 | BPF_EXIT_INSN(), |
| 587 | }, |
| 588 | .errstr = "invalid BPF_ALU opcode f0", |
| 589 | .result = REJECT, |
| 590 | }, |
| 591 | { |
| 592 | "junk insn5", |
| 593 | .insns = { |
| 594 | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), |
| 595 | BPF_EXIT_INSN(), |
| 596 | }, |
| 597 | .errstr = "BPF_ALU uses reserved fields", |
| 598 | .result = REJECT, |
| 599 | }, |
| 600 | { |
| 601 | "misaligned read from stack", |
| 602 | .insns = { |
| 603 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 604 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), |
| 605 | BPF_EXIT_INSN(), |
| 606 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 607 | .errstr = "misaligned stack access", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 608 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 609 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 610 | }, |
| 611 | { |
| 612 | "invalid map_fd for function call", |
| 613 | .insns = { |
| 614 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 615 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), |
| 616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 617 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 618 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 619 | BPF_FUNC_map_delete_elem), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 620 | BPF_EXIT_INSN(), |
| 621 | }, |
| 622 | .errstr = "fd 0 is not pointing to valid bpf_map", |
| 623 | .result = REJECT, |
| 624 | }, |
| 625 | { |
| 626 | "don't check return value before access", |
| 627 | .insns = { |
| 628 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 629 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 630 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 631 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 632 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 633 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 634 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
| 635 | BPF_EXIT_INSN(), |
| 636 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 637 | .fixup_map1 = { 3 }, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 638 | .errstr = "R0 invalid mem access 'map_value_or_null'", |
| 639 | .result = REJECT, |
| 640 | }, |
| 641 | { |
| 642 | "access memory with incorrect alignment", |
| 643 | .insns = { |
| 644 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 645 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 646 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 647 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 648 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 649 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 650 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 651 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), |
| 652 | BPF_EXIT_INSN(), |
| 653 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 654 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 655 | .errstr = "misaligned value access", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 656 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 657 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 658 | }, |
| 659 | { |
| 660 | "sometimes access memory with incorrect alignment", |
| 661 | .insns = { |
| 662 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 663 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 664 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 665 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 666 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 667 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 668 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 669 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
| 670 | BPF_EXIT_INSN(), |
| 671 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), |
| 672 | BPF_EXIT_INSN(), |
| 673 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 674 | .fixup_map1 = { 3 }, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 675 | .errstr = "R0 invalid mem access", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 676 | .errstr_unpriv = "R0 leaks addr", |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 677 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 678 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 679 | }, |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 680 | { |
| 681 | "jump test 1", |
| 682 | .insns = { |
| 683 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 684 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), |
| 685 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 686 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 687 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), |
| 688 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), |
| 689 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), |
| 690 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), |
| 691 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), |
| 692 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), |
| 693 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), |
| 694 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), |
| 695 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), |
| 696 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), |
| 697 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 698 | BPF_EXIT_INSN(), |
| 699 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 700 | .errstr_unpriv = "R1 pointer comparison", |
| 701 | .result_unpriv = REJECT, |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 702 | .result = ACCEPT, |
| 703 | }, |
| 704 | { |
| 705 | "jump test 2", |
| 706 | .insns = { |
| 707 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 708 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), |
| 709 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 710 | BPF_JMP_IMM(BPF_JA, 0, 0, 14), |
| 711 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), |
| 712 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), |
| 713 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), |
| 714 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), |
| 715 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), |
| 716 | BPF_JMP_IMM(BPF_JA, 0, 0, 8), |
| 717 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), |
| 718 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), |
| 719 | BPF_JMP_IMM(BPF_JA, 0, 0, 5), |
| 720 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), |
| 721 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), |
| 722 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 723 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), |
| 724 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), |
| 725 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 726 | BPF_EXIT_INSN(), |
| 727 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 728 | .errstr_unpriv = "R1 pointer comparison", |
| 729 | .result_unpriv = REJECT, |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 730 | .result = ACCEPT, |
| 731 | }, |
| 732 | { |
| 733 | "jump test 3", |
| 734 | .insns = { |
| 735 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 736 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), |
| 737 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 738 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 739 | BPF_JMP_IMM(BPF_JA, 0, 0, 19), |
| 740 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), |
| 741 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), |
| 742 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), |
| 743 | BPF_JMP_IMM(BPF_JA, 0, 0, 15), |
| 744 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), |
| 745 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), |
| 746 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), |
| 747 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), |
| 748 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), |
| 749 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), |
| 750 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), |
| 751 | BPF_JMP_IMM(BPF_JA, 0, 0, 7), |
| 752 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), |
| 753 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), |
| 754 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), |
| 755 | BPF_JMP_IMM(BPF_JA, 0, 0, 3), |
| 756 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), |
| 757 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), |
| 758 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), |
| 759 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 760 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 761 | BPF_FUNC_map_delete_elem), |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 762 | BPF_EXIT_INSN(), |
| 763 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 764 | .fixup_map1 = { 24 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 765 | .errstr_unpriv = "R1 pointer comparison", |
| 766 | .result_unpriv = REJECT, |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 767 | .result = ACCEPT, |
| 768 | }, |
| 769 | { |
| 770 | "jump test 4", |
| 771 | .insns = { |
| 772 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 773 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 774 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 775 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 776 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 777 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 778 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 779 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 780 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 781 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 782 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 783 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 784 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 785 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 786 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 787 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 788 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 789 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 790 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 791 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 792 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 793 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 794 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 795 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 796 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 797 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 798 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 799 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 800 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 801 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 802 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 803 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 804 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 805 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 806 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 807 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 808 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 809 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 810 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 811 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 812 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 813 | BPF_EXIT_INSN(), |
| 814 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 815 | .errstr_unpriv = "R1 pointer comparison", |
| 816 | .result_unpriv = REJECT, |
Alexei Starovoitov | fd10c2e | 2014-09-29 18:50:02 -0700 | [diff] [blame] | 817 | .result = ACCEPT, |
| 818 | }, |
Alexei Starovoitov | 342ded4 | 2014-10-28 15:11:42 -0700 | [diff] [blame] | 819 | { |
| 820 | "jump test 5", |
| 821 | .insns = { |
| 822 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 823 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 824 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 825 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 826 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 827 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 828 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 829 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 830 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 831 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 832 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 833 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 834 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 835 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 836 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 837 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 838 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 839 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 840 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 841 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 842 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 843 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 844 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 845 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 846 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 847 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 848 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 849 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 850 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 851 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 852 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 853 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 854 | BPF_EXIT_INSN(), |
| 855 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 856 | .errstr_unpriv = "R1 pointer comparison", |
| 857 | .result_unpriv = REJECT, |
Alexei Starovoitov | 342ded4 | 2014-10-28 15:11:42 -0700 | [diff] [blame] | 858 | .result = ACCEPT, |
| 859 | }, |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 860 | { |
| 861 | "access skb fields ok", |
| 862 | .insns = { |
| 863 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 864 | offsetof(struct __sk_buff, len)), |
| 865 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 866 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 867 | offsetof(struct __sk_buff, mark)), |
| 868 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 869 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 870 | offsetof(struct __sk_buff, pkt_type)), |
| 871 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 872 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 873 | offsetof(struct __sk_buff, queue_mapping)), |
| 874 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
Alexei Starovoitov | c249739 | 2015-03-16 18:06:02 -0700 | [diff] [blame] | 875 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 876 | offsetof(struct __sk_buff, protocol)), |
| 877 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 878 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 879 | offsetof(struct __sk_buff, vlan_present)), |
| 880 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 881 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 882 | offsetof(struct __sk_buff, vlan_tci)), |
| 883 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
Daniel Borkmann | b1d9fc4 | 2017-04-19 23:01:17 +0200 | [diff] [blame] | 884 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 885 | offsetof(struct __sk_buff, napi_id)), |
| 886 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 887 | BPF_EXIT_INSN(), |
| 888 | }, |
| 889 | .result = ACCEPT, |
| 890 | }, |
| 891 | { |
| 892 | "access skb fields bad1", |
| 893 | .insns = { |
| 894 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), |
| 895 | BPF_EXIT_INSN(), |
| 896 | }, |
| 897 | .errstr = "invalid bpf_context access", |
| 898 | .result = REJECT, |
| 899 | }, |
| 900 | { |
| 901 | "access skb fields bad2", |
| 902 | .insns = { |
| 903 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), |
| 904 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 905 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 906 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 907 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 908 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 909 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 910 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 911 | BPF_EXIT_INSN(), |
| 912 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 913 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 914 | offsetof(struct __sk_buff, pkt_type)), |
| 915 | BPF_EXIT_INSN(), |
| 916 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 917 | .fixup_map1 = { 4 }, |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 918 | .errstr = "different pointers", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 919 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 920 | .result = REJECT, |
| 921 | }, |
| 922 | { |
| 923 | "access skb fields bad3", |
| 924 | .insns = { |
| 925 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 926 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 927 | offsetof(struct __sk_buff, pkt_type)), |
| 928 | BPF_EXIT_INSN(), |
| 929 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 930 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 931 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 932 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 933 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 934 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 935 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 936 | BPF_EXIT_INSN(), |
| 937 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 938 | BPF_JMP_IMM(BPF_JA, 0, 0, -12), |
| 939 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 940 | .fixup_map1 = { 6 }, |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 941 | .errstr = "different pointers", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 942 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 614cd3b | 2015-03-13 11:57:43 -0700 | [diff] [blame] | 943 | .result = REJECT, |
| 944 | }, |
Alexei Starovoitov | 725f9dc | 2015-04-15 16:19:33 -0700 | [diff] [blame] | 945 | { |
| 946 | "access skb fields bad4", |
| 947 | .insns = { |
| 948 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), |
| 949 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 950 | offsetof(struct __sk_buff, len)), |
| 951 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 952 | BPF_EXIT_INSN(), |
| 953 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 954 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 955 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 956 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 957 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 958 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | 725f9dc | 2015-04-15 16:19:33 -0700 | [diff] [blame] | 959 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 960 | BPF_EXIT_INSN(), |
| 961 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 962 | BPF_JMP_IMM(BPF_JA, 0, 0, -13), |
| 963 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 964 | .fixup_map1 = { 7 }, |
Alexei Starovoitov | 725f9dc | 2015-04-15 16:19:33 -0700 | [diff] [blame] | 965 | .errstr = "different pointers", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 966 | .errstr_unpriv = "R1 pointer comparison", |
Alexei Starovoitov | 725f9dc | 2015-04-15 16:19:33 -0700 | [diff] [blame] | 967 | .result = REJECT, |
| 968 | }, |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 969 | { |
| 970 | "check skb->mark is not writeable by sockets", |
| 971 | .insns = { |
| 972 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 973 | offsetof(struct __sk_buff, mark)), |
| 974 | BPF_EXIT_INSN(), |
| 975 | }, |
| 976 | .errstr = "invalid bpf_context access", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 977 | .errstr_unpriv = "R1 leaks addr", |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 978 | .result = REJECT, |
| 979 | }, |
| 980 | { |
| 981 | "check skb->tc_index is not writeable by sockets", |
| 982 | .insns = { |
| 983 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 984 | offsetof(struct __sk_buff, tc_index)), |
| 985 | BPF_EXIT_INSN(), |
| 986 | }, |
| 987 | .errstr = "invalid bpf_context access", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 988 | .errstr_unpriv = "R1 leaks addr", |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 989 | .result = REJECT, |
| 990 | }, |
| 991 | { |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 992 | "check cb access: byte", |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 993 | .insns = { |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 994 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 995 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 996 | offsetof(struct __sk_buff, cb[0])), |
| 997 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 998 | offsetof(struct __sk_buff, cb[0]) + 1), |
| 999 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1000 | offsetof(struct __sk_buff, cb[0]) + 2), |
| 1001 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1002 | offsetof(struct __sk_buff, cb[0]) + 3), |
| 1003 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1004 | offsetof(struct __sk_buff, cb[1])), |
| 1005 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1006 | offsetof(struct __sk_buff, cb[1]) + 1), |
| 1007 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1008 | offsetof(struct __sk_buff, cb[1]) + 2), |
| 1009 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1010 | offsetof(struct __sk_buff, cb[1]) + 3), |
| 1011 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1012 | offsetof(struct __sk_buff, cb[2])), |
| 1013 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1014 | offsetof(struct __sk_buff, cb[2]) + 1), |
| 1015 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1016 | offsetof(struct __sk_buff, cb[2]) + 2), |
| 1017 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1018 | offsetof(struct __sk_buff, cb[2]) + 3), |
| 1019 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1020 | offsetof(struct __sk_buff, cb[3])), |
| 1021 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1022 | offsetof(struct __sk_buff, cb[3]) + 1), |
| 1023 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1024 | offsetof(struct __sk_buff, cb[3]) + 2), |
| 1025 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1026 | offsetof(struct __sk_buff, cb[3]) + 3), |
| 1027 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1028 | offsetof(struct __sk_buff, cb[4])), |
| 1029 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1030 | offsetof(struct __sk_buff, cb[4]) + 1), |
| 1031 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1032 | offsetof(struct __sk_buff, cb[4]) + 2), |
| 1033 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
| 1034 | offsetof(struct __sk_buff, cb[4]) + 3), |
| 1035 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1036 | offsetof(struct __sk_buff, cb[0])), |
| 1037 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1038 | offsetof(struct __sk_buff, cb[0]) + 1), |
| 1039 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1040 | offsetof(struct __sk_buff, cb[0]) + 2), |
| 1041 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1042 | offsetof(struct __sk_buff, cb[0]) + 3), |
| 1043 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1044 | offsetof(struct __sk_buff, cb[1])), |
| 1045 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1046 | offsetof(struct __sk_buff, cb[1]) + 1), |
| 1047 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1048 | offsetof(struct __sk_buff, cb[1]) + 2), |
| 1049 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1050 | offsetof(struct __sk_buff, cb[1]) + 3), |
| 1051 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1052 | offsetof(struct __sk_buff, cb[2])), |
| 1053 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1054 | offsetof(struct __sk_buff, cb[2]) + 1), |
| 1055 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1056 | offsetof(struct __sk_buff, cb[2]) + 2), |
| 1057 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1058 | offsetof(struct __sk_buff, cb[2]) + 3), |
| 1059 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1060 | offsetof(struct __sk_buff, cb[3])), |
| 1061 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1062 | offsetof(struct __sk_buff, cb[3]) + 1), |
| 1063 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1064 | offsetof(struct __sk_buff, cb[3]) + 2), |
| 1065 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1066 | offsetof(struct __sk_buff, cb[3]) + 3), |
| 1067 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1068 | offsetof(struct __sk_buff, cb[4])), |
| 1069 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1070 | offsetof(struct __sk_buff, cb[4]) + 1), |
| 1071 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1072 | offsetof(struct __sk_buff, cb[4]) + 2), |
| 1073 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1074 | offsetof(struct __sk_buff, cb[4]) + 3), |
| 1075 | BPF_EXIT_INSN(), |
| 1076 | }, |
| 1077 | .result = ACCEPT, |
| 1078 | }, |
| 1079 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1080 | "__sk_buff->hash, offset 0, byte store not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1081 | .insns = { |
| 1082 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1083 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1084 | offsetof(struct __sk_buff, hash)), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1085 | BPF_EXIT_INSN(), |
| 1086 | }, |
| 1087 | .errstr = "invalid bpf_context access", |
| 1088 | .result = REJECT, |
| 1089 | }, |
| 1090 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1091 | "__sk_buff->tc_index, offset 3, byte store not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1092 | .insns = { |
| 1093 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1094 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1095 | offsetof(struct __sk_buff, tc_index) + 3), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1096 | BPF_EXIT_INSN(), |
| 1097 | }, |
| 1098 | .errstr = "invalid bpf_context access", |
| 1099 | .result = REJECT, |
| 1100 | }, |
| 1101 | { |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1102 | "check skb->hash byte load permitted", |
| 1103 | .insns = { |
| 1104 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 1105 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1106 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1107 | offsetof(struct __sk_buff, hash)), |
| 1108 | #else |
| 1109 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1110 | offsetof(struct __sk_buff, hash) + 3), |
| 1111 | #endif |
| 1112 | BPF_EXIT_INSN(), |
| 1113 | }, |
| 1114 | .result = ACCEPT, |
| 1115 | }, |
| 1116 | { |
| 1117 | "check skb->hash byte load not permitted 1", |
| 1118 | .insns = { |
| 1119 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1120 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1121 | offsetof(struct __sk_buff, hash) + 1), |
| 1122 | BPF_EXIT_INSN(), |
| 1123 | }, |
| 1124 | .errstr = "invalid bpf_context access", |
| 1125 | .result = REJECT, |
| 1126 | }, |
| 1127 | { |
| 1128 | "check skb->hash byte load not permitted 2", |
| 1129 | .insns = { |
| 1130 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1131 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1132 | offsetof(struct __sk_buff, hash) + 2), |
| 1133 | BPF_EXIT_INSN(), |
| 1134 | }, |
| 1135 | .errstr = "invalid bpf_context access", |
| 1136 | .result = REJECT, |
| 1137 | }, |
| 1138 | { |
| 1139 | "check skb->hash byte load not permitted 3", |
| 1140 | .insns = { |
| 1141 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 1142 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1143 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1144 | offsetof(struct __sk_buff, hash) + 3), |
| 1145 | #else |
| 1146 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 1147 | offsetof(struct __sk_buff, hash)), |
| 1148 | #endif |
| 1149 | BPF_EXIT_INSN(), |
| 1150 | }, |
| 1151 | .errstr = "invalid bpf_context access", |
| 1152 | .result = REJECT, |
| 1153 | }, |
| 1154 | { |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1155 | "check cb access: byte, wrong type", |
| 1156 | .insns = { |
| 1157 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1158 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1159 | offsetof(struct __sk_buff, cb[0])), |
| 1160 | BPF_EXIT_INSN(), |
| 1161 | }, |
| 1162 | .errstr = "invalid bpf_context access", |
| 1163 | .result = REJECT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1164 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, |
| 1165 | }, |
| 1166 | { |
| 1167 | "check cb access: half", |
| 1168 | .insns = { |
| 1169 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1170 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1171 | offsetof(struct __sk_buff, cb[0])), |
| 1172 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1173 | offsetof(struct __sk_buff, cb[0]) + 2), |
| 1174 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1175 | offsetof(struct __sk_buff, cb[1])), |
| 1176 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1177 | offsetof(struct __sk_buff, cb[1]) + 2), |
| 1178 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1179 | offsetof(struct __sk_buff, cb[2])), |
| 1180 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1181 | offsetof(struct __sk_buff, cb[2]) + 2), |
| 1182 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1183 | offsetof(struct __sk_buff, cb[3])), |
| 1184 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1185 | offsetof(struct __sk_buff, cb[3]) + 2), |
| 1186 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1187 | offsetof(struct __sk_buff, cb[4])), |
| 1188 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1189 | offsetof(struct __sk_buff, cb[4]) + 2), |
| 1190 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1191 | offsetof(struct __sk_buff, cb[0])), |
| 1192 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1193 | offsetof(struct __sk_buff, cb[0]) + 2), |
| 1194 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1195 | offsetof(struct __sk_buff, cb[1])), |
| 1196 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1197 | offsetof(struct __sk_buff, cb[1]) + 2), |
| 1198 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1199 | offsetof(struct __sk_buff, cb[2])), |
| 1200 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1201 | offsetof(struct __sk_buff, cb[2]) + 2), |
| 1202 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1203 | offsetof(struct __sk_buff, cb[3])), |
| 1204 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1205 | offsetof(struct __sk_buff, cb[3]) + 2), |
| 1206 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1207 | offsetof(struct __sk_buff, cb[4])), |
| 1208 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1209 | offsetof(struct __sk_buff, cb[4]) + 2), |
| 1210 | BPF_EXIT_INSN(), |
| 1211 | }, |
| 1212 | .result = ACCEPT, |
| 1213 | }, |
| 1214 | { |
| 1215 | "check cb access: half, unaligned", |
| 1216 | .insns = { |
| 1217 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1218 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1219 | offsetof(struct __sk_buff, cb[0]) + 1), |
| 1220 | BPF_EXIT_INSN(), |
| 1221 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1222 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1223 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1224 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1225 | }, |
| 1226 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1227 | "check __sk_buff->hash, offset 0, half store not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1228 | .insns = { |
| 1229 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1230 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1231 | offsetof(struct __sk_buff, hash)), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1232 | BPF_EXIT_INSN(), |
| 1233 | }, |
| 1234 | .errstr = "invalid bpf_context access", |
| 1235 | .result = REJECT, |
| 1236 | }, |
| 1237 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1238 | "check __sk_buff->tc_index, offset 2, half store not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1239 | .insns = { |
| 1240 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1241 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1242 | offsetof(struct __sk_buff, tc_index) + 2), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1243 | BPF_EXIT_INSN(), |
| 1244 | }, |
| 1245 | .errstr = "invalid bpf_context access", |
| 1246 | .result = REJECT, |
| 1247 | }, |
| 1248 | { |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1249 | "check skb->hash half load permitted", |
| 1250 | .insns = { |
| 1251 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 1252 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1253 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1254 | offsetof(struct __sk_buff, hash)), |
| 1255 | #else |
| 1256 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1257 | offsetof(struct __sk_buff, hash) + 2), |
| 1258 | #endif |
| 1259 | BPF_EXIT_INSN(), |
| 1260 | }, |
| 1261 | .result = ACCEPT, |
| 1262 | }, |
| 1263 | { |
| 1264 | "check skb->hash half load not permitted", |
| 1265 | .insns = { |
| 1266 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 1267 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 1268 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1269 | offsetof(struct __sk_buff, hash) + 2), |
| 1270 | #else |
| 1271 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 1272 | offsetof(struct __sk_buff, hash)), |
| 1273 | #endif |
| 1274 | BPF_EXIT_INSN(), |
| 1275 | }, |
| 1276 | .errstr = "invalid bpf_context access", |
| 1277 | .result = REJECT, |
| 1278 | }, |
| 1279 | { |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1280 | "check cb access: half, wrong type", |
| 1281 | .insns = { |
| 1282 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1283 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, |
| 1284 | offsetof(struct __sk_buff, cb[0])), |
| 1285 | BPF_EXIT_INSN(), |
| 1286 | }, |
| 1287 | .errstr = "invalid bpf_context access", |
| 1288 | .result = REJECT, |
| 1289 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, |
| 1290 | }, |
| 1291 | { |
| 1292 | "check cb access: word", |
| 1293 | .insns = { |
| 1294 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1295 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1296 | offsetof(struct __sk_buff, cb[0])), |
| 1297 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1298 | offsetof(struct __sk_buff, cb[1])), |
| 1299 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1300 | offsetof(struct __sk_buff, cb[2])), |
| 1301 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1302 | offsetof(struct __sk_buff, cb[3])), |
| 1303 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1304 | offsetof(struct __sk_buff, cb[4])), |
| 1305 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1306 | offsetof(struct __sk_buff, cb[0])), |
| 1307 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1308 | offsetof(struct __sk_buff, cb[1])), |
| 1309 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1310 | offsetof(struct __sk_buff, cb[2])), |
| 1311 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1312 | offsetof(struct __sk_buff, cb[3])), |
| 1313 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1314 | offsetof(struct __sk_buff, cb[4])), |
| 1315 | BPF_EXIT_INSN(), |
| 1316 | }, |
| 1317 | .result = ACCEPT, |
| 1318 | }, |
| 1319 | { |
| 1320 | "check cb access: word, unaligned 1", |
| 1321 | .insns = { |
| 1322 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1323 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1324 | offsetof(struct __sk_buff, cb[0]) + 2), |
| 1325 | BPF_EXIT_INSN(), |
| 1326 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1327 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1328 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1329 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1330 | }, |
| 1331 | { |
| 1332 | "check cb access: word, unaligned 2", |
| 1333 | .insns = { |
| 1334 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1335 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1336 | offsetof(struct __sk_buff, cb[4]) + 1), |
| 1337 | BPF_EXIT_INSN(), |
| 1338 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1339 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1340 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1341 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1342 | }, |
| 1343 | { |
| 1344 | "check cb access: word, unaligned 3", |
| 1345 | .insns = { |
| 1346 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1347 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1348 | offsetof(struct __sk_buff, cb[4]) + 2), |
| 1349 | BPF_EXIT_INSN(), |
| 1350 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1351 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1352 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1353 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1354 | }, |
| 1355 | { |
| 1356 | "check cb access: word, unaligned 4", |
| 1357 | .insns = { |
| 1358 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1359 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1360 | offsetof(struct __sk_buff, cb[4]) + 3), |
| 1361 | BPF_EXIT_INSN(), |
| 1362 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1363 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1364 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1365 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1366 | }, |
| 1367 | { |
| 1368 | "check cb access: double", |
| 1369 | .insns = { |
| 1370 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1371 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1372 | offsetof(struct __sk_buff, cb[0])), |
| 1373 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1374 | offsetof(struct __sk_buff, cb[2])), |
| 1375 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, |
| 1376 | offsetof(struct __sk_buff, cb[0])), |
| 1377 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, |
| 1378 | offsetof(struct __sk_buff, cb[2])), |
| 1379 | BPF_EXIT_INSN(), |
| 1380 | }, |
| 1381 | .result = ACCEPT, |
| 1382 | }, |
| 1383 | { |
| 1384 | "check cb access: double, unaligned 1", |
| 1385 | .insns = { |
| 1386 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1387 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1388 | offsetof(struct __sk_buff, cb[1])), |
| 1389 | BPF_EXIT_INSN(), |
| 1390 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1391 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1392 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1393 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1394 | }, |
| 1395 | { |
| 1396 | "check cb access: double, unaligned 2", |
| 1397 | .insns = { |
| 1398 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1399 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1400 | offsetof(struct __sk_buff, cb[3])), |
| 1401 | BPF_EXIT_INSN(), |
| 1402 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1403 | .errstr = "misaligned context access", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1404 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1405 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1406 | }, |
| 1407 | { |
| 1408 | "check cb access: double, oob 1", |
| 1409 | .insns = { |
| 1410 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1411 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1412 | offsetof(struct __sk_buff, cb[4])), |
| 1413 | BPF_EXIT_INSN(), |
| 1414 | }, |
| 1415 | .errstr = "invalid bpf_context access", |
| 1416 | .result = REJECT, |
| 1417 | }, |
| 1418 | { |
| 1419 | "check cb access: double, oob 2", |
| 1420 | .insns = { |
| 1421 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1422 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, |
| 1423 | offsetof(struct __sk_buff, cb[4])), |
| 1424 | BPF_EXIT_INSN(), |
| 1425 | }, |
| 1426 | .errstr = "invalid bpf_context access", |
| 1427 | .result = REJECT, |
| 1428 | }, |
| 1429 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1430 | "check __sk_buff->ifindex dw store not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1431 | .insns = { |
| 1432 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1433 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1434 | offsetof(struct __sk_buff, ifindex)), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1435 | BPF_EXIT_INSN(), |
| 1436 | }, |
| 1437 | .errstr = "invalid bpf_context access", |
| 1438 | .result = REJECT, |
| 1439 | }, |
| 1440 | { |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1441 | "check __sk_buff->ifindex dw load not permitted", |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1442 | .insns = { |
| 1443 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1444 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, |
Yonghong Song | 31fd858 | 2017-06-13 15:52:13 -0700 | [diff] [blame] | 1445 | offsetof(struct __sk_buff, ifindex)), |
Daniel Borkmann | 62c7989 | 2017-01-12 11:51:33 +0100 | [diff] [blame] | 1446 | BPF_EXIT_INSN(), |
| 1447 | }, |
| 1448 | .errstr = "invalid bpf_context access", |
| 1449 | .result = REJECT, |
| 1450 | }, |
| 1451 | { |
| 1452 | "check cb access: double, wrong type", |
| 1453 | .insns = { |
| 1454 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1455 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 1456 | offsetof(struct __sk_buff, cb[0])), |
| 1457 | BPF_EXIT_INSN(), |
| 1458 | }, |
| 1459 | .errstr = "invalid bpf_context access", |
| 1460 | .result = REJECT, |
| 1461 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1462 | }, |
| 1463 | { |
| 1464 | "check out of range skb->cb access", |
| 1465 | .insns = { |
| 1466 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1467 | offsetof(struct __sk_buff, cb[0]) + 256), |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1468 | BPF_EXIT_INSN(), |
| 1469 | }, |
| 1470 | .errstr = "invalid bpf_context access", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1471 | .errstr_unpriv = "", |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1472 | .result = REJECT, |
| 1473 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, |
| 1474 | }, |
| 1475 | { |
| 1476 | "write skb fields from socket prog", |
| 1477 | .insns = { |
| 1478 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1479 | offsetof(struct __sk_buff, cb[4])), |
| 1480 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 1481 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1482 | offsetof(struct __sk_buff, mark)), |
| 1483 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1484 | offsetof(struct __sk_buff, tc_index)), |
| 1485 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 1486 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 1487 | offsetof(struct __sk_buff, cb[0])), |
| 1488 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 1489 | offsetof(struct __sk_buff, cb[2])), |
| 1490 | BPF_EXIT_INSN(), |
| 1491 | }, |
| 1492 | .result = ACCEPT, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1493 | .errstr_unpriv = "R1 leaks addr", |
| 1494 | .result_unpriv = REJECT, |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1495 | }, |
| 1496 | { |
| 1497 | "write skb fields from tc_cls_act prog", |
| 1498 | .insns = { |
| 1499 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1500 | offsetof(struct __sk_buff, cb[0])), |
| 1501 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1502 | offsetof(struct __sk_buff, mark)), |
| 1503 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 1504 | offsetof(struct __sk_buff, tc_index)), |
| 1505 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1506 | offsetof(struct __sk_buff, tc_index)), |
| 1507 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 1508 | offsetof(struct __sk_buff, cb[3])), |
| 1509 | BPF_EXIT_INSN(), |
| 1510 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1511 | .errstr_unpriv = "", |
| 1512 | .result_unpriv = REJECT, |
Alexei Starovoitov | d691f9e | 2015-06-04 10:11:54 -0700 | [diff] [blame] | 1513 | .result = ACCEPT, |
| 1514 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1515 | }, |
Alex Gartrell | 24b4d2a | 2015-07-23 14:24:40 -0700 | [diff] [blame] | 1516 | { |
| 1517 | "PTR_TO_STACK store/load", |
| 1518 | .insns = { |
| 1519 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1520 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), |
| 1521 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), |
| 1522 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), |
| 1523 | BPF_EXIT_INSN(), |
| 1524 | }, |
| 1525 | .result = ACCEPT, |
| 1526 | }, |
| 1527 | { |
| 1528 | "PTR_TO_STACK store/load - bad alignment on off", |
| 1529 | .insns = { |
| 1530 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1531 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 1532 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), |
| 1533 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), |
| 1534 | BPF_EXIT_INSN(), |
| 1535 | }, |
| 1536 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1537 | .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8", |
| 1538 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Alex Gartrell | 24b4d2a | 2015-07-23 14:24:40 -0700 | [diff] [blame] | 1539 | }, |
| 1540 | { |
| 1541 | "PTR_TO_STACK store/load - bad alignment on reg", |
| 1542 | .insns = { |
| 1543 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1544 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), |
| 1545 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 1546 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 1547 | BPF_EXIT_INSN(), |
| 1548 | }, |
| 1549 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1550 | .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8", |
| 1551 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
Alex Gartrell | 24b4d2a | 2015-07-23 14:24:40 -0700 | [diff] [blame] | 1552 | }, |
| 1553 | { |
| 1554 | "PTR_TO_STACK store/load - out of bounds low", |
| 1555 | .insns = { |
| 1556 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1557 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), |
| 1558 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 1559 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 1560 | BPF_EXIT_INSN(), |
| 1561 | }, |
| 1562 | .result = REJECT, |
| 1563 | .errstr = "invalid stack off=-79992 size=8", |
| 1564 | }, |
| 1565 | { |
| 1566 | "PTR_TO_STACK store/load - out of bounds high", |
| 1567 | .insns = { |
| 1568 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1569 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 1570 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 1571 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 1572 | BPF_EXIT_INSN(), |
| 1573 | }, |
| 1574 | .result = REJECT, |
| 1575 | .errstr = "invalid stack off=0 size=8", |
| 1576 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1577 | { |
| 1578 | "unpriv: return pointer", |
| 1579 | .insns = { |
| 1580 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), |
| 1581 | BPF_EXIT_INSN(), |
| 1582 | }, |
| 1583 | .result = ACCEPT, |
| 1584 | .result_unpriv = REJECT, |
| 1585 | .errstr_unpriv = "R0 leaks addr", |
| 1586 | }, |
| 1587 | { |
| 1588 | "unpriv: add const to pointer", |
| 1589 | .insns = { |
| 1590 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 1591 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1592 | BPF_EXIT_INSN(), |
| 1593 | }, |
| 1594 | .result = ACCEPT, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1595 | }, |
| 1596 | { |
| 1597 | "unpriv: add pointer to pointer", |
| 1598 | .insns = { |
| 1599 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), |
| 1600 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1601 | BPF_EXIT_INSN(), |
| 1602 | }, |
| 1603 | .result = ACCEPT, |
| 1604 | .result_unpriv = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1605 | .errstr_unpriv = "R1 pointer += pointer", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1606 | }, |
| 1607 | { |
| 1608 | "unpriv: neg pointer", |
| 1609 | .insns = { |
| 1610 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), |
| 1611 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1612 | BPF_EXIT_INSN(), |
| 1613 | }, |
| 1614 | .result = ACCEPT, |
| 1615 | .result_unpriv = REJECT, |
| 1616 | .errstr_unpriv = "R1 pointer arithmetic", |
| 1617 | }, |
| 1618 | { |
| 1619 | "unpriv: cmp pointer with const", |
| 1620 | .insns = { |
| 1621 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), |
| 1622 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1623 | BPF_EXIT_INSN(), |
| 1624 | }, |
| 1625 | .result = ACCEPT, |
| 1626 | .result_unpriv = REJECT, |
| 1627 | .errstr_unpriv = "R1 pointer comparison", |
| 1628 | }, |
| 1629 | { |
| 1630 | "unpriv: cmp pointer with pointer", |
| 1631 | .insns = { |
| 1632 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 1633 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1634 | BPF_EXIT_INSN(), |
| 1635 | }, |
| 1636 | .result = ACCEPT, |
| 1637 | .result_unpriv = REJECT, |
| 1638 | .errstr_unpriv = "R10 pointer comparison", |
| 1639 | }, |
| 1640 | { |
| 1641 | "unpriv: check that printk is disallowed", |
| 1642 | .insns = { |
| 1643 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1644 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1645 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 1646 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 1647 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1648 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1649 | BPF_FUNC_trace_printk), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1650 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1651 | BPF_EXIT_INSN(), |
| 1652 | }, |
Daniel Borkmann | 0eb6984 | 2016-12-15 01:39:10 +0100 | [diff] [blame] | 1653 | .errstr_unpriv = "unknown func bpf_trace_printk#6", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1654 | .result_unpriv = REJECT, |
| 1655 | .result = ACCEPT, |
| 1656 | }, |
| 1657 | { |
| 1658 | "unpriv: pass pointer to helper function", |
| 1659 | .insns = { |
| 1660 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1661 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1662 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1663 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1664 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 1665 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1666 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1667 | BPF_FUNC_map_update_elem), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1668 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1669 | BPF_EXIT_INSN(), |
| 1670 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1671 | .fixup_map1 = { 3 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1672 | .errstr_unpriv = "R4 leaks addr", |
| 1673 | .result_unpriv = REJECT, |
| 1674 | .result = ACCEPT, |
| 1675 | }, |
| 1676 | { |
| 1677 | "unpriv: indirectly pass pointer on stack to helper function", |
| 1678 | .insns = { |
| 1679 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1680 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1681 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1682 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1683 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1684 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1685 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1686 | BPF_EXIT_INSN(), |
| 1687 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1688 | .fixup_map1 = { 3 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1689 | .errstr = "invalid indirect read from stack off -8+0 size 8", |
| 1690 | .result = REJECT, |
| 1691 | }, |
| 1692 | { |
| 1693 | "unpriv: mangle pointer on stack 1", |
| 1694 | .insns = { |
| 1695 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1696 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), |
| 1697 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1698 | BPF_EXIT_INSN(), |
| 1699 | }, |
| 1700 | .errstr_unpriv = "attempt to corrupt spilled", |
| 1701 | .result_unpriv = REJECT, |
| 1702 | .result = ACCEPT, |
| 1703 | }, |
| 1704 | { |
| 1705 | "unpriv: mangle pointer on stack 2", |
| 1706 | .insns = { |
| 1707 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1708 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), |
| 1709 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1710 | BPF_EXIT_INSN(), |
| 1711 | }, |
| 1712 | .errstr_unpriv = "attempt to corrupt spilled", |
| 1713 | .result_unpriv = REJECT, |
| 1714 | .result = ACCEPT, |
| 1715 | }, |
| 1716 | { |
| 1717 | "unpriv: read pointer from stack in small chunks", |
| 1718 | .insns = { |
| 1719 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1720 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), |
| 1721 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1722 | BPF_EXIT_INSN(), |
| 1723 | }, |
| 1724 | .errstr = "invalid size", |
| 1725 | .result = REJECT, |
| 1726 | }, |
| 1727 | { |
| 1728 | "unpriv: write pointer into ctx", |
| 1729 | .insns = { |
| 1730 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), |
| 1731 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1732 | BPF_EXIT_INSN(), |
| 1733 | }, |
| 1734 | .errstr_unpriv = "R1 leaks addr", |
| 1735 | .result_unpriv = REJECT, |
| 1736 | .errstr = "invalid bpf_context access", |
| 1737 | .result = REJECT, |
| 1738 | }, |
| 1739 | { |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1740 | "unpriv: spill/fill of ctx", |
| 1741 | .insns = { |
| 1742 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1743 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1744 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1745 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
| 1746 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1747 | BPF_EXIT_INSN(), |
| 1748 | }, |
| 1749 | .result = ACCEPT, |
| 1750 | }, |
| 1751 | { |
| 1752 | "unpriv: spill/fill of ctx 2", |
| 1753 | .insns = { |
| 1754 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1755 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1756 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1757 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1758 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1759 | BPF_FUNC_get_hash_recalc), |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1760 | BPF_EXIT_INSN(), |
| 1761 | }, |
| 1762 | .result = ACCEPT, |
| 1763 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1764 | }, |
| 1765 | { |
| 1766 | "unpriv: spill/fill of ctx 3", |
| 1767 | .insns = { |
| 1768 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1769 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1770 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1771 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), |
| 1772 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1773 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1774 | BPF_FUNC_get_hash_recalc), |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1775 | BPF_EXIT_INSN(), |
| 1776 | }, |
| 1777 | .result = REJECT, |
| 1778 | .errstr = "R1 type=fp expected=ctx", |
| 1779 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1780 | }, |
| 1781 | { |
| 1782 | "unpriv: spill/fill of ctx 4", |
| 1783 | .insns = { |
| 1784 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1785 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1786 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1787 | BPF_MOV64_IMM(BPF_REG_0, 1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1788 | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, |
| 1789 | BPF_REG_0, -8, 0), |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1790 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1791 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1792 | BPF_FUNC_get_hash_recalc), |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1793 | BPF_EXIT_INSN(), |
| 1794 | }, |
| 1795 | .result = REJECT, |
| 1796 | .errstr = "R1 type=inv expected=ctx", |
| 1797 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1798 | }, |
| 1799 | { |
| 1800 | "unpriv: spill/fill of different pointers stx", |
| 1801 | .insns = { |
| 1802 | BPF_MOV64_IMM(BPF_REG_3, 42), |
| 1803 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1804 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1805 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), |
| 1806 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1807 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), |
| 1808 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), |
| 1809 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), |
| 1810 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1811 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
| 1812 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, |
| 1813 | offsetof(struct __sk_buff, mark)), |
| 1814 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1815 | BPF_EXIT_INSN(), |
| 1816 | }, |
| 1817 | .result = REJECT, |
| 1818 | .errstr = "same insn cannot be used with different pointers", |
| 1819 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1820 | }, |
| 1821 | { |
| 1822 | "unpriv: spill/fill of different pointers ldx", |
| 1823 | .insns = { |
| 1824 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1825 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1826 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), |
| 1827 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1828 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, |
| 1829 | -(__s32)offsetof(struct bpf_perf_event_data, |
| 1830 | sample_period) - 8), |
| 1831 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), |
| 1832 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), |
| 1833 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 1834 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
| 1835 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, |
| 1836 | offsetof(struct bpf_perf_event_data, |
| 1837 | sample_period)), |
| 1838 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1839 | BPF_EXIT_INSN(), |
| 1840 | }, |
| 1841 | .result = REJECT, |
| 1842 | .errstr = "same insn cannot be used with different pointers", |
| 1843 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, |
| 1844 | }, |
| 1845 | { |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1846 | "unpriv: write pointer into map elem value", |
| 1847 | .insns = { |
| 1848 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1849 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1850 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1851 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1852 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1853 | BPF_FUNC_map_lookup_elem), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1854 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 1855 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), |
| 1856 | BPF_EXIT_INSN(), |
| 1857 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1858 | .fixup_map1 = { 3 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1859 | .errstr_unpriv = "R0 leaks addr", |
| 1860 | .result_unpriv = REJECT, |
| 1861 | .result = ACCEPT, |
| 1862 | }, |
| 1863 | { |
| 1864 | "unpriv: partial copy of pointer", |
| 1865 | .insns = { |
| 1866 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), |
| 1867 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1868 | BPF_EXIT_INSN(), |
| 1869 | }, |
| 1870 | .errstr_unpriv = "R10 partial copy", |
| 1871 | .result_unpriv = REJECT, |
| 1872 | .result = ACCEPT, |
| 1873 | }, |
| 1874 | { |
| 1875 | "unpriv: pass pointer to tail_call", |
| 1876 | .insns = { |
| 1877 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), |
| 1878 | BPF_LD_MAP_FD(BPF_REG_2, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1879 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 1880 | BPF_FUNC_tail_call), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1881 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1882 | BPF_EXIT_INSN(), |
| 1883 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1884 | .fixup_prog = { 1 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1885 | .errstr_unpriv = "R3 leaks addr into helper", |
| 1886 | .result_unpriv = REJECT, |
| 1887 | .result = ACCEPT, |
| 1888 | }, |
| 1889 | { |
| 1890 | "unpriv: cmp map pointer with zero", |
| 1891 | .insns = { |
| 1892 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 1893 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1894 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), |
| 1895 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1896 | BPF_EXIT_INSN(), |
| 1897 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 1898 | .fixup_map1 = { 1 }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1899 | .errstr_unpriv = "R1 pointer comparison", |
| 1900 | .result_unpriv = REJECT, |
| 1901 | .result = ACCEPT, |
| 1902 | }, |
| 1903 | { |
| 1904 | "unpriv: write into frame pointer", |
| 1905 | .insns = { |
| 1906 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), |
| 1907 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1908 | BPF_EXIT_INSN(), |
| 1909 | }, |
| 1910 | .errstr = "frame pointer is read only", |
| 1911 | .result = REJECT, |
| 1912 | }, |
| 1913 | { |
Daniel Borkmann | 1a776b9 | 2016-10-17 14:28:35 +0200 | [diff] [blame] | 1914 | "unpriv: spill/fill frame pointer", |
| 1915 | .insns = { |
| 1916 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1917 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1918 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), |
| 1919 | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), |
| 1920 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1921 | BPF_EXIT_INSN(), |
| 1922 | }, |
| 1923 | .errstr = "frame pointer is read only", |
| 1924 | .result = REJECT, |
| 1925 | }, |
| 1926 | { |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1927 | "unpriv: cmp of frame pointer", |
| 1928 | .insns = { |
| 1929 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), |
| 1930 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1931 | BPF_EXIT_INSN(), |
| 1932 | }, |
| 1933 | .errstr_unpriv = "R10 pointer comparison", |
| 1934 | .result_unpriv = REJECT, |
| 1935 | .result = ACCEPT, |
| 1936 | }, |
| 1937 | { |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 1938 | "unpriv: adding of fp", |
| 1939 | .insns = { |
| 1940 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1941 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 1942 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), |
| 1943 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8), |
| 1944 | BPF_EXIT_INSN(), |
| 1945 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 1946 | .result = ACCEPT, |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 1947 | }, |
| 1948 | { |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1949 | "unpriv: cmp of stack pointer", |
| 1950 | .insns = { |
| 1951 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1952 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1953 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), |
| 1954 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1955 | BPF_EXIT_INSN(), |
| 1956 | }, |
| 1957 | .errstr_unpriv = "R2 pointer comparison", |
| 1958 | .result_unpriv = REJECT, |
| 1959 | .result = ACCEPT, |
| 1960 | }, |
| 1961 | { |
Yonghong Song | 332270f | 2017-04-29 22:52:42 -0700 | [diff] [blame] | 1962 | "stack pointer arithmetic", |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1963 | .insns = { |
Yonghong Song | 332270f | 2017-04-29 22:52:42 -0700 | [diff] [blame] | 1964 | BPF_MOV64_IMM(BPF_REG_1, 4), |
| 1965 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 1966 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), |
| 1967 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), |
| 1968 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), |
| 1969 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), |
| 1970 | BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1), |
| 1971 | BPF_ST_MEM(0, BPF_REG_2, 4, 0), |
| 1972 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), |
| 1973 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), |
| 1974 | BPF_ST_MEM(0, BPF_REG_2, 4, 0), |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1975 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1976 | BPF_EXIT_INSN(), |
| 1977 | }, |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 1978 | .result = ACCEPT, |
| 1979 | }, |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 1980 | { |
| 1981 | "raw_stack: no skb_load_bytes", |
| 1982 | .insns = { |
| 1983 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1984 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1985 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1986 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1987 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1988 | /* Call to skb_load_bytes() omitted. */ |
| 1989 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1990 | BPF_EXIT_INSN(), |
| 1991 | }, |
| 1992 | .result = REJECT, |
| 1993 | .errstr = "invalid read from stack off -8+0 size 8", |
| 1994 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1995 | }, |
| 1996 | { |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 1997 | "raw_stack: skb_load_bytes, negative len", |
| 1998 | .insns = { |
| 1999 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2000 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2001 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 2002 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2003 | BPF_MOV64_IMM(BPF_REG_4, -8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2004 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2005 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2006 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2007 | BPF_EXIT_INSN(), |
| 2008 | }, |
| 2009 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2010 | .errstr = "R4 min value is negative", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2011 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2012 | }, |
| 2013 | { |
| 2014 | "raw_stack: skb_load_bytes, negative len 2", |
| 2015 | .insns = { |
| 2016 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2017 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2018 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 2019 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2020 | BPF_MOV64_IMM(BPF_REG_4, ~0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2021 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2022 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2023 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2024 | BPF_EXIT_INSN(), |
| 2025 | }, |
| 2026 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2027 | .errstr = "R4 min value is negative", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2028 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2029 | }, |
| 2030 | { |
| 2031 | "raw_stack: skb_load_bytes, zero len", |
| 2032 | .insns = { |
| 2033 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2034 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2035 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 2036 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2037 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2038 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2039 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2040 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2041 | BPF_EXIT_INSN(), |
| 2042 | }, |
| 2043 | .result = REJECT, |
| 2044 | .errstr = "invalid stack type R3", |
| 2045 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2046 | }, |
| 2047 | { |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2048 | "raw_stack: skb_load_bytes, no init", |
| 2049 | .insns = { |
| 2050 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2051 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2052 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 2053 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2054 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2055 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2056 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2057 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2058 | BPF_EXIT_INSN(), |
| 2059 | }, |
| 2060 | .result = ACCEPT, |
| 2061 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2062 | }, |
| 2063 | { |
| 2064 | "raw_stack: skb_load_bytes, init", |
| 2065 | .insns = { |
| 2066 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2067 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2068 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 2069 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), |
| 2070 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2071 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2072 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2073 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2074 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2075 | BPF_EXIT_INSN(), |
| 2076 | }, |
| 2077 | .result = ACCEPT, |
| 2078 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2079 | }, |
| 2080 | { |
| 2081 | "raw_stack: skb_load_bytes, spilled regs around bounds", |
| 2082 | .insns = { |
| 2083 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2084 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2085 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2086 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
| 2087 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2088 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2089 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2090 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2091 | BPF_FUNC_skb_load_bytes), |
| 2092 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), |
| 2093 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2094 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 2095 | offsetof(struct __sk_buff, mark)), |
| 2096 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 2097 | offsetof(struct __sk_buff, priority)), |
| 2098 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2099 | BPF_EXIT_INSN(), |
| 2100 | }, |
| 2101 | .result = ACCEPT, |
| 2102 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2103 | }, |
| 2104 | { |
| 2105 | "raw_stack: skb_load_bytes, spilled regs corruption", |
| 2106 | .insns = { |
| 2107 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2108 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2109 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2110 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2111 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2112 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2113 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2114 | BPF_FUNC_skb_load_bytes), |
| 2115 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2116 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 2117 | offsetof(struct __sk_buff, mark)), |
| 2118 | BPF_EXIT_INSN(), |
| 2119 | }, |
| 2120 | .result = REJECT, |
| 2121 | .errstr = "R0 invalid mem access 'inv'", |
| 2122 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2123 | }, |
| 2124 | { |
| 2125 | "raw_stack: skb_load_bytes, spilled regs corruption 2", |
| 2126 | .insns = { |
| 2127 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2128 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2129 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2130 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
| 2131 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 2132 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2133 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2134 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2135 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2136 | BPF_FUNC_skb_load_bytes), |
| 2137 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), |
| 2138 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), |
| 2139 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2140 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 2141 | offsetof(struct __sk_buff, mark)), |
| 2142 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 2143 | offsetof(struct __sk_buff, priority)), |
| 2144 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2145 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, |
| 2146 | offsetof(struct __sk_buff, pkt_type)), |
| 2147 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| 2148 | BPF_EXIT_INSN(), |
| 2149 | }, |
| 2150 | .result = REJECT, |
| 2151 | .errstr = "R3 invalid mem access 'inv'", |
| 2152 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2153 | }, |
| 2154 | { |
| 2155 | "raw_stack: skb_load_bytes, spilled regs + data", |
| 2156 | .insns = { |
| 2157 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2158 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2159 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2160 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
| 2161 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
| 2162 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2163 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2164 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2165 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2166 | BPF_FUNC_skb_load_bytes), |
| 2167 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), |
| 2168 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), |
| 2169 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2170 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 2171 | offsetof(struct __sk_buff, mark)), |
| 2172 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 2173 | offsetof(struct __sk_buff, priority)), |
| 2174 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2175 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| 2176 | BPF_EXIT_INSN(), |
| 2177 | }, |
| 2178 | .result = ACCEPT, |
| 2179 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2180 | }, |
| 2181 | { |
| 2182 | "raw_stack: skb_load_bytes, invalid access 1", |
| 2183 | .insns = { |
| 2184 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2185 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2186 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), |
| 2187 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2188 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2189 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2190 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2191 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2192 | BPF_EXIT_INSN(), |
| 2193 | }, |
| 2194 | .result = REJECT, |
| 2195 | .errstr = "invalid stack type R3 off=-513 access_size=8", |
| 2196 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2197 | }, |
| 2198 | { |
| 2199 | "raw_stack: skb_load_bytes, invalid access 2", |
| 2200 | .insns = { |
| 2201 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2202 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2203 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), |
| 2204 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2205 | BPF_MOV64_IMM(BPF_REG_4, 8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2206 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2207 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2208 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2209 | BPF_EXIT_INSN(), |
| 2210 | }, |
| 2211 | .result = REJECT, |
| 2212 | .errstr = "invalid stack type R3 off=-1 access_size=8", |
| 2213 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2214 | }, |
| 2215 | { |
| 2216 | "raw_stack: skb_load_bytes, invalid access 3", |
| 2217 | .insns = { |
| 2218 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2219 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2220 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), |
| 2221 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2222 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2223 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2224 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2225 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2226 | BPF_EXIT_INSN(), |
| 2227 | }, |
| 2228 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2229 | .errstr = "R4 min value is negative", |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2230 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2231 | }, |
| 2232 | { |
| 2233 | "raw_stack: skb_load_bytes, invalid access 4", |
| 2234 | .insns = { |
| 2235 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2236 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2237 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), |
| 2238 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2239 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2240 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2241 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2242 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2243 | BPF_EXIT_INSN(), |
| 2244 | }, |
| 2245 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2246 | .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2247 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2248 | }, |
| 2249 | { |
| 2250 | "raw_stack: skb_load_bytes, invalid access 5", |
| 2251 | .insns = { |
| 2252 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2253 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2254 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 2255 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2256 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2257 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2258 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2259 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2260 | BPF_EXIT_INSN(), |
| 2261 | }, |
| 2262 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2263 | .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2264 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2265 | }, |
| 2266 | { |
| 2267 | "raw_stack: skb_load_bytes, invalid access 6", |
| 2268 | .insns = { |
| 2269 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2270 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2271 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 2272 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2273 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2274 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2275 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2276 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2277 | BPF_EXIT_INSN(), |
| 2278 | }, |
| 2279 | .result = REJECT, |
| 2280 | .errstr = "invalid stack type R3 off=-512 access_size=0", |
| 2281 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2282 | }, |
| 2283 | { |
| 2284 | "raw_stack: skb_load_bytes, large access", |
| 2285 | .insns = { |
| 2286 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 2287 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 2288 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 2289 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 2290 | BPF_MOV64_IMM(BPF_REG_4, 512), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2291 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2292 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 3f2050e | 2016-04-13 00:10:54 +0200 | [diff] [blame] | 2293 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 2294 | BPF_EXIT_INSN(), |
| 2295 | }, |
| 2296 | .result = ACCEPT, |
| 2297 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2298 | }, |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2299 | { |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2300 | "direct packet access: test1", |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2301 | .insns = { |
| 2302 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2303 | offsetof(struct __sk_buff, data)), |
| 2304 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2305 | offsetof(struct __sk_buff, data_end)), |
| 2306 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2307 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2308 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2309 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2310 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2311 | BPF_EXIT_INSN(), |
| 2312 | }, |
| 2313 | .result = ACCEPT, |
| 2314 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2315 | }, |
| 2316 | { |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2317 | "direct packet access: test2", |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2318 | .insns = { |
| 2319 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2320 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, |
| 2321 | offsetof(struct __sk_buff, data_end)), |
| 2322 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2323 | offsetof(struct __sk_buff, data)), |
| 2324 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| 2325 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), |
| 2326 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), |
| 2327 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), |
| 2328 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), |
| 2329 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), |
| 2330 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2331 | offsetof(struct __sk_buff, data)), |
| 2332 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), |
| 2333 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2334 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49), |
| 2335 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49), |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2336 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), |
| 2337 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), |
| 2338 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), |
| 2339 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 2340 | offsetof(struct __sk_buff, data_end)), |
| 2341 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), |
| 2342 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), |
| 2343 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2344 | BPF_EXIT_INSN(), |
| 2345 | }, |
| 2346 | .result = ACCEPT, |
| 2347 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2348 | }, |
| 2349 | { |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2350 | "direct packet access: test3", |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2351 | .insns = { |
| 2352 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2353 | offsetof(struct __sk_buff, data)), |
| 2354 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2355 | BPF_EXIT_INSN(), |
| 2356 | }, |
| 2357 | .errstr = "invalid bpf_context access off=76", |
| 2358 | .result = REJECT, |
| 2359 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, |
| 2360 | }, |
| 2361 | { |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2362 | "direct packet access: test4 (write)", |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2363 | .insns = { |
| 2364 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2365 | offsetof(struct __sk_buff, data)), |
| 2366 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2367 | offsetof(struct __sk_buff, data_end)), |
| 2368 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2369 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2370 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2371 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 2372 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2373 | BPF_EXIT_INSN(), |
| 2374 | }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2375 | .result = ACCEPT, |
Alexei Starovoitov | 883e44e | 2016-05-05 19:49:15 -0700 | [diff] [blame] | 2376 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2377 | }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2378 | { |
Daniel Borkmann | 2d2be8c | 2016-09-08 01:03:42 +0200 | [diff] [blame] | 2379 | "direct packet access: test5 (pkt_end >= reg, good access)", |
| 2380 | .insns = { |
| 2381 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2382 | offsetof(struct __sk_buff, data)), |
| 2383 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2384 | offsetof(struct __sk_buff, data_end)), |
| 2385 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2386 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2387 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), |
| 2388 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2389 | BPF_EXIT_INSN(), |
| 2390 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2391 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2392 | BPF_EXIT_INSN(), |
| 2393 | }, |
| 2394 | .result = ACCEPT, |
| 2395 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2396 | }, |
| 2397 | { |
| 2398 | "direct packet access: test6 (pkt_end >= reg, bad access)", |
| 2399 | .insns = { |
| 2400 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2401 | offsetof(struct __sk_buff, data)), |
| 2402 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2403 | offsetof(struct __sk_buff, data_end)), |
| 2404 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2405 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2406 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), |
| 2407 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2408 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2409 | BPF_EXIT_INSN(), |
| 2410 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2411 | BPF_EXIT_INSN(), |
| 2412 | }, |
| 2413 | .errstr = "invalid access to packet", |
| 2414 | .result = REJECT, |
| 2415 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2416 | }, |
| 2417 | { |
| 2418 | "direct packet access: test7 (pkt_end >= reg, both accesses)", |
| 2419 | .insns = { |
| 2420 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2421 | offsetof(struct __sk_buff, data)), |
| 2422 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2423 | offsetof(struct __sk_buff, data_end)), |
| 2424 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2425 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2426 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), |
| 2427 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2428 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2429 | BPF_EXIT_INSN(), |
| 2430 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2431 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2432 | BPF_EXIT_INSN(), |
| 2433 | }, |
| 2434 | .errstr = "invalid access to packet", |
| 2435 | .result = REJECT, |
| 2436 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2437 | }, |
| 2438 | { |
| 2439 | "direct packet access: test8 (double test, variant 1)", |
| 2440 | .insns = { |
| 2441 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2442 | offsetof(struct __sk_buff, data)), |
| 2443 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2444 | offsetof(struct __sk_buff, data_end)), |
| 2445 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2446 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2447 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), |
| 2448 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2449 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2450 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2451 | BPF_EXIT_INSN(), |
| 2452 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2453 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2454 | BPF_EXIT_INSN(), |
| 2455 | }, |
| 2456 | .result = ACCEPT, |
| 2457 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2458 | }, |
| 2459 | { |
| 2460 | "direct packet access: test9 (double test, variant 2)", |
| 2461 | .insns = { |
| 2462 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2463 | offsetof(struct __sk_buff, data)), |
| 2464 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2465 | offsetof(struct __sk_buff, data_end)), |
| 2466 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2467 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2468 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), |
| 2469 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2470 | BPF_EXIT_INSN(), |
| 2471 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2472 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2473 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2474 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2475 | BPF_EXIT_INSN(), |
| 2476 | }, |
| 2477 | .result = ACCEPT, |
| 2478 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2479 | }, |
| 2480 | { |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 2481 | "direct packet access: test10 (write invalid)", |
| 2482 | .insns = { |
| 2483 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2484 | offsetof(struct __sk_buff, data)), |
| 2485 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2486 | offsetof(struct __sk_buff, data_end)), |
| 2487 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2488 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2489 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), |
| 2490 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2491 | BPF_EXIT_INSN(), |
| 2492 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 2493 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2494 | BPF_EXIT_INSN(), |
| 2495 | }, |
| 2496 | .errstr = "invalid access to packet", |
| 2497 | .result = REJECT, |
| 2498 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2499 | }, |
| 2500 | { |
Daniel Borkmann | 3fadc80 | 2017-01-24 01:06:30 +0100 | [diff] [blame] | 2501 | "direct packet access: test11 (shift, good access)", |
| 2502 | .insns = { |
| 2503 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2504 | offsetof(struct __sk_buff, data)), |
| 2505 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2506 | offsetof(struct __sk_buff, data_end)), |
| 2507 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2508 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), |
| 2509 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), |
| 2510 | BPF_MOV64_IMM(BPF_REG_3, 144), |
| 2511 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| 2512 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| 2513 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), |
| 2514 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| 2515 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| 2516 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2517 | BPF_EXIT_INSN(), |
| 2518 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2519 | BPF_EXIT_INSN(), |
| 2520 | }, |
| 2521 | .result = ACCEPT, |
| 2522 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2523 | }, |
| 2524 | { |
| 2525 | "direct packet access: test12 (and, good access)", |
| 2526 | .insns = { |
| 2527 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2528 | offsetof(struct __sk_buff, data)), |
| 2529 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2530 | offsetof(struct __sk_buff, data_end)), |
| 2531 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2532 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), |
| 2533 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), |
| 2534 | BPF_MOV64_IMM(BPF_REG_3, 144), |
| 2535 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| 2536 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| 2537 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), |
| 2538 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| 2539 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| 2540 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2541 | BPF_EXIT_INSN(), |
| 2542 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2543 | BPF_EXIT_INSN(), |
| 2544 | }, |
| 2545 | .result = ACCEPT, |
| 2546 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2547 | }, |
| 2548 | { |
| 2549 | "direct packet access: test13 (branches, good access)", |
| 2550 | .insns = { |
| 2551 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2552 | offsetof(struct __sk_buff, data)), |
| 2553 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2554 | offsetof(struct __sk_buff, data_end)), |
| 2555 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2556 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), |
| 2557 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), |
| 2558 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2559 | offsetof(struct __sk_buff, mark)), |
| 2560 | BPF_MOV64_IMM(BPF_REG_4, 1), |
| 2561 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), |
| 2562 | BPF_MOV64_IMM(BPF_REG_3, 14), |
| 2563 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| 2564 | BPF_MOV64_IMM(BPF_REG_3, 24), |
| 2565 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| 2566 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), |
| 2567 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), |
| 2568 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| 2569 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| 2570 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2571 | BPF_EXIT_INSN(), |
| 2572 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2573 | BPF_EXIT_INSN(), |
| 2574 | }, |
| 2575 | .result = ACCEPT, |
| 2576 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2577 | }, |
| 2578 | { |
William Tu | 63dfef7 | 2017-02-04 08:37:29 -0800 | [diff] [blame] | 2579 | "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", |
| 2580 | .insns = { |
| 2581 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2582 | offsetof(struct __sk_buff, data)), |
| 2583 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2584 | offsetof(struct __sk_buff, data_end)), |
| 2585 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2586 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), |
| 2587 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), |
| 2588 | BPF_MOV64_IMM(BPF_REG_5, 12), |
| 2589 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), |
| 2590 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), |
| 2591 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), |
| 2592 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), |
| 2593 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2594 | BPF_EXIT_INSN(), |
| 2595 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2596 | BPF_EXIT_INSN(), |
| 2597 | }, |
| 2598 | .result = ACCEPT, |
| 2599 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2600 | }, |
| 2601 | { |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 2602 | "direct packet access: test15 (spill with xadd)", |
| 2603 | .insns = { |
| 2604 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2605 | offsetof(struct __sk_buff, data)), |
| 2606 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2607 | offsetof(struct __sk_buff, data_end)), |
| 2608 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2609 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2610 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), |
| 2611 | BPF_MOV64_IMM(BPF_REG_5, 4096), |
| 2612 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), |
| 2613 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), |
| 2614 | BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), |
| 2615 | BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), |
| 2616 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), |
| 2617 | BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), |
| 2618 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2619 | BPF_EXIT_INSN(), |
| 2620 | }, |
| 2621 | .errstr = "R2 invalid mem access 'inv'", |
| 2622 | .result = REJECT, |
| 2623 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2624 | }, |
| 2625 | { |
Daniel Borkmann | 728a853 | 2017-04-27 01:39:32 +0200 | [diff] [blame] | 2626 | "direct packet access: test16 (arith on data_end)", |
| 2627 | .insns = { |
| 2628 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2629 | offsetof(struct __sk_buff, data)), |
| 2630 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2631 | offsetof(struct __sk_buff, data_end)), |
| 2632 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2633 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2634 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16), |
| 2635 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2636 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 2637 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2638 | BPF_EXIT_INSN(), |
| 2639 | }, |
| 2640 | .errstr = "invalid access to packet", |
| 2641 | .result = REJECT, |
| 2642 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2643 | }, |
| 2644 | { |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 2645 | "direct packet access: test17 (pruning, alignment)", |
| 2646 | .insns = { |
| 2647 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2648 | offsetof(struct __sk_buff, data)), |
| 2649 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2650 | offsetof(struct __sk_buff, data_end)), |
| 2651 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 2652 | offsetof(struct __sk_buff, mark)), |
| 2653 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2654 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14), |
| 2655 | BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4), |
| 2656 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2657 | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4), |
| 2658 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2659 | BPF_EXIT_INSN(), |
| 2660 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), |
| 2661 | BPF_JMP_A(-6), |
| 2662 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2663 | .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4", |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 2664 | .result = REJECT, |
| 2665 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2666 | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, |
| 2667 | }, |
| 2668 | { |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2669 | "direct packet access: test18 (imm += pkt_ptr, 1)", |
| 2670 | .insns = { |
| 2671 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2672 | offsetof(struct __sk_buff, data)), |
| 2673 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2674 | offsetof(struct __sk_buff, data_end)), |
| 2675 | BPF_MOV64_IMM(BPF_REG_0, 8), |
| 2676 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2677 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2678 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 2679 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2680 | BPF_EXIT_INSN(), |
| 2681 | }, |
| 2682 | .result = ACCEPT, |
| 2683 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2684 | }, |
| 2685 | { |
| 2686 | "direct packet access: test19 (imm += pkt_ptr, 2)", |
| 2687 | .insns = { |
| 2688 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2689 | offsetof(struct __sk_buff, data)), |
| 2690 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2691 | offsetof(struct __sk_buff, data_end)), |
| 2692 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2693 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2694 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3), |
| 2695 | BPF_MOV64_IMM(BPF_REG_4, 4), |
| 2696 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| 2697 | BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0), |
| 2698 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2699 | BPF_EXIT_INSN(), |
| 2700 | }, |
| 2701 | .result = ACCEPT, |
| 2702 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2703 | }, |
| 2704 | { |
| 2705 | "direct packet access: test20 (x += pkt_ptr, 1)", |
| 2706 | .insns = { |
| 2707 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2708 | offsetof(struct __sk_buff, data)), |
| 2709 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2710 | offsetof(struct __sk_buff, data_end)), |
| 2711 | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), |
| 2712 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 2713 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2714 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2715 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 2716 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| 2717 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2718 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2719 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), |
| 2720 | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), |
| 2721 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2722 | BPF_EXIT_INSN(), |
| 2723 | }, |
| 2724 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2725 | .result = ACCEPT, |
| 2726 | }, |
| 2727 | { |
| 2728 | "direct packet access: test21 (x += pkt_ptr, 2)", |
| 2729 | .insns = { |
| 2730 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2731 | offsetof(struct __sk_buff, data)), |
| 2732 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2733 | offsetof(struct __sk_buff, data_end)), |
| 2734 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2735 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2736 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9), |
| 2737 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
| 2738 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8), |
| 2739 | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2740 | BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2741 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| 2742 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2743 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2744 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), |
| 2745 | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), |
| 2746 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2747 | BPF_EXIT_INSN(), |
| 2748 | }, |
| 2749 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2750 | .result = ACCEPT, |
| 2751 | }, |
| 2752 | { |
| 2753 | "direct packet access: test22 (x += pkt_ptr, 3)", |
| 2754 | .insns = { |
| 2755 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2756 | offsetof(struct __sk_buff, data)), |
| 2757 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2758 | offsetof(struct __sk_buff, data_end)), |
| 2759 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2760 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2761 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), |
| 2762 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16), |
| 2763 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16), |
| 2764 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11), |
| 2765 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), |
| 2766 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
| 2767 | BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8), |
| 2768 | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2769 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2770 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), |
| 2771 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), |
| 2772 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), |
| 2773 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), |
| 2774 | BPF_MOV64_IMM(BPF_REG_2, 1), |
| 2775 | BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0), |
| 2776 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2777 | BPF_EXIT_INSN(), |
| 2778 | }, |
| 2779 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2780 | .result = ACCEPT, |
| 2781 | }, |
| 2782 | { |
| 2783 | "direct packet access: test23 (x += pkt_ptr, 4)", |
| 2784 | .insns = { |
| 2785 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2786 | offsetof(struct __sk_buff, data)), |
| 2787 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2788 | offsetof(struct __sk_buff, data_end)), |
| 2789 | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), |
| 2790 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 2791 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| 2792 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff), |
| 2793 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 2794 | BPF_MOV64_IMM(BPF_REG_0, 31), |
| 2795 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), |
| 2796 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2797 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), |
| 2798 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1), |
| 2799 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2800 | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), |
| 2801 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2802 | BPF_EXIT_INSN(), |
| 2803 | }, |
| 2804 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2805 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 2806 | .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)", |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2807 | }, |
| 2808 | { |
| 2809 | "direct packet access: test24 (x += pkt_ptr, 5)", |
| 2810 | .insns = { |
| 2811 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2812 | offsetof(struct __sk_buff, data)), |
| 2813 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2814 | offsetof(struct __sk_buff, data_end)), |
| 2815 | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), |
| 2816 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 2817 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| 2818 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff), |
| 2819 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 2820 | BPF_MOV64_IMM(BPF_REG_0, 64), |
| 2821 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), |
| 2822 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 2823 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), |
Edward Cree | 1f9ab38 | 2017-08-07 15:29:11 +0100 | [diff] [blame] | 2824 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1), |
Daniel Borkmann | 6d191ed4 | 2017-07-02 02:13:31 +0200 | [diff] [blame] | 2825 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 2826 | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), |
| 2827 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2828 | BPF_EXIT_INSN(), |
| 2829 | }, |
| 2830 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2831 | .result = ACCEPT, |
| 2832 | }, |
| 2833 | { |
Daniel Borkmann | 31e482b | 2017-08-10 01:40:03 +0200 | [diff] [blame^] | 2834 | "direct packet access: test25 (marking on <, good access)", |
| 2835 | .insns = { |
| 2836 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2837 | offsetof(struct __sk_buff, data)), |
| 2838 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2839 | offsetof(struct __sk_buff, data_end)), |
| 2840 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2841 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2842 | BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2), |
| 2843 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2844 | BPF_EXIT_INSN(), |
| 2845 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2846 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| 2847 | }, |
| 2848 | .result = ACCEPT, |
| 2849 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2850 | }, |
| 2851 | { |
| 2852 | "direct packet access: test26 (marking on <, bad access)", |
| 2853 | .insns = { |
| 2854 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2855 | offsetof(struct __sk_buff, data)), |
| 2856 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2857 | offsetof(struct __sk_buff, data_end)), |
| 2858 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2859 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2860 | BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3), |
| 2861 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2862 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2863 | BPF_EXIT_INSN(), |
| 2864 | BPF_JMP_IMM(BPF_JA, 0, 0, -3), |
| 2865 | }, |
| 2866 | .result = REJECT, |
| 2867 | .errstr = "invalid access to packet", |
| 2868 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2869 | }, |
| 2870 | { |
| 2871 | "direct packet access: test27 (marking on <=, good access)", |
| 2872 | .insns = { |
| 2873 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2874 | offsetof(struct __sk_buff, data)), |
| 2875 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2876 | offsetof(struct __sk_buff, data_end)), |
| 2877 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2878 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2879 | BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1), |
| 2880 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2881 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2882 | BPF_EXIT_INSN(), |
| 2883 | }, |
| 2884 | .result = ACCEPT, |
| 2885 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2886 | }, |
| 2887 | { |
| 2888 | "direct packet access: test28 (marking on <=, bad access)", |
| 2889 | .insns = { |
| 2890 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2891 | offsetof(struct __sk_buff, data)), |
| 2892 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2893 | offsetof(struct __sk_buff, data_end)), |
| 2894 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 2895 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 2896 | BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2), |
| 2897 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 2898 | BPF_EXIT_INSN(), |
| 2899 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 2900 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| 2901 | }, |
| 2902 | .result = REJECT, |
| 2903 | .errstr = "invalid access to packet", |
| 2904 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 2905 | }, |
| 2906 | { |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2907 | "helper access to packet: test1, valid packet_ptr range", |
| 2908 | .insns = { |
| 2909 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2910 | offsetof(struct xdp_md, data)), |
| 2911 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2912 | offsetof(struct xdp_md, data_end)), |
| 2913 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), |
| 2914 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 2915 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), |
| 2916 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 2917 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 2918 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2919 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2920 | BPF_FUNC_map_update_elem), |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2921 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2922 | BPF_EXIT_INSN(), |
| 2923 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2924 | .fixup_map1 = { 5 }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2925 | .result_unpriv = ACCEPT, |
| 2926 | .result = ACCEPT, |
| 2927 | .prog_type = BPF_PROG_TYPE_XDP, |
| 2928 | }, |
| 2929 | { |
| 2930 | "helper access to packet: test2, unchecked packet_ptr", |
| 2931 | .insns = { |
| 2932 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2933 | offsetof(struct xdp_md, data)), |
| 2934 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2935 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2936 | BPF_FUNC_map_lookup_elem), |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2937 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2938 | BPF_EXIT_INSN(), |
| 2939 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2940 | .fixup_map1 = { 1 }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2941 | .result = REJECT, |
| 2942 | .errstr = "invalid access to packet", |
| 2943 | .prog_type = BPF_PROG_TYPE_XDP, |
| 2944 | }, |
| 2945 | { |
| 2946 | "helper access to packet: test3, variable add", |
| 2947 | .insns = { |
| 2948 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2949 | offsetof(struct xdp_md, data)), |
| 2950 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2951 | offsetof(struct xdp_md, data_end)), |
| 2952 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 2953 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), |
| 2954 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), |
| 2955 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), |
| 2956 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 2957 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), |
| 2958 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
| 2959 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), |
| 2960 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), |
| 2961 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 2962 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2963 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2964 | BPF_FUNC_map_lookup_elem), |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2965 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2966 | BPF_EXIT_INSN(), |
| 2967 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2968 | .fixup_map1 = { 11 }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2969 | .result = ACCEPT, |
| 2970 | .prog_type = BPF_PROG_TYPE_XDP, |
| 2971 | }, |
| 2972 | { |
| 2973 | "helper access to packet: test4, packet_ptr with bad range", |
| 2974 | .insns = { |
| 2975 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2976 | offsetof(struct xdp_md, data)), |
| 2977 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 2978 | offsetof(struct xdp_md, data_end)), |
| 2979 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 2980 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), |
| 2981 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), |
| 2982 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2983 | BPF_EXIT_INSN(), |
| 2984 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2985 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 2986 | BPF_FUNC_map_lookup_elem), |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2987 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 2988 | BPF_EXIT_INSN(), |
| 2989 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 2990 | .fixup_map1 = { 7 }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 2991 | .result = REJECT, |
| 2992 | .errstr = "invalid access to packet", |
| 2993 | .prog_type = BPF_PROG_TYPE_XDP, |
| 2994 | }, |
| 2995 | { |
| 2996 | "helper access to packet: test5, packet_ptr with too short range", |
| 2997 | .insns = { |
| 2998 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 2999 | offsetof(struct xdp_md, data)), |
| 3000 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3001 | offsetof(struct xdp_md, data_end)), |
| 3002 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), |
| 3003 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 3004 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), |
| 3005 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), |
| 3006 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3007 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3008 | BPF_FUNC_map_lookup_elem), |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 3009 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3010 | BPF_EXIT_INSN(), |
| 3011 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3012 | .fixup_map1 = { 6 }, |
Aaron Yue | 1633ac0 | 2016-08-11 18:17:17 -0700 | [diff] [blame] | 3013 | .result = REJECT, |
| 3014 | .errstr = "invalid access to packet", |
| 3015 | .prog_type = BPF_PROG_TYPE_XDP, |
| 3016 | }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3017 | { |
| 3018 | "helper access to packet: test6, cls valid packet_ptr range", |
| 3019 | .insns = { |
| 3020 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3021 | offsetof(struct __sk_buff, data)), |
| 3022 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3023 | offsetof(struct __sk_buff, data_end)), |
| 3024 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), |
| 3025 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 3026 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), |
| 3027 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3028 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 3029 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3030 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3031 | BPF_FUNC_map_update_elem), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3032 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3033 | BPF_EXIT_INSN(), |
| 3034 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3035 | .fixup_map1 = { 5 }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3036 | .result = ACCEPT, |
| 3037 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3038 | }, |
| 3039 | { |
| 3040 | "helper access to packet: test7, cls unchecked packet_ptr", |
| 3041 | .insns = { |
| 3042 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3043 | offsetof(struct __sk_buff, data)), |
| 3044 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3045 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3046 | BPF_FUNC_map_lookup_elem), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3047 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3048 | BPF_EXIT_INSN(), |
| 3049 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3050 | .fixup_map1 = { 1 }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3051 | .result = REJECT, |
| 3052 | .errstr = "invalid access to packet", |
| 3053 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3054 | }, |
| 3055 | { |
| 3056 | "helper access to packet: test8, cls variable add", |
| 3057 | .insns = { |
| 3058 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3059 | offsetof(struct __sk_buff, data)), |
| 3060 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3061 | offsetof(struct __sk_buff, data_end)), |
| 3062 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 3063 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), |
| 3064 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), |
| 3065 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), |
| 3066 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 3067 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), |
| 3068 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), |
| 3069 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), |
| 3070 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), |
| 3071 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3072 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3073 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3074 | BPF_FUNC_map_lookup_elem), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3075 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3076 | BPF_EXIT_INSN(), |
| 3077 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3078 | .fixup_map1 = { 11 }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3079 | .result = ACCEPT, |
| 3080 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3081 | }, |
| 3082 | { |
| 3083 | "helper access to packet: test9, cls packet_ptr with bad range", |
| 3084 | .insns = { |
| 3085 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3086 | offsetof(struct __sk_buff, data)), |
| 3087 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3088 | offsetof(struct __sk_buff, data_end)), |
| 3089 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 3090 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), |
| 3091 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), |
| 3092 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3093 | BPF_EXIT_INSN(), |
| 3094 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3095 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3096 | BPF_FUNC_map_lookup_elem), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3097 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3098 | BPF_EXIT_INSN(), |
| 3099 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3100 | .fixup_map1 = { 7 }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3101 | .result = REJECT, |
| 3102 | .errstr = "invalid access to packet", |
| 3103 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3104 | }, |
| 3105 | { |
| 3106 | "helper access to packet: test10, cls packet_ptr with too short range", |
| 3107 | .insns = { |
| 3108 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3109 | offsetof(struct __sk_buff, data)), |
| 3110 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3111 | offsetof(struct __sk_buff, data_end)), |
| 3112 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), |
| 3113 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 3114 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), |
| 3115 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), |
| 3116 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3117 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3118 | BPF_FUNC_map_lookup_elem), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3119 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3120 | BPF_EXIT_INSN(), |
| 3121 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3122 | .fixup_map1 = { 6 }, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3123 | .result = REJECT, |
| 3124 | .errstr = "invalid access to packet", |
| 3125 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3126 | }, |
| 3127 | { |
| 3128 | "helper access to packet: test11, cls unsuitable helper 1", |
| 3129 | .insns = { |
| 3130 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3131 | offsetof(struct __sk_buff, data)), |
| 3132 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3133 | offsetof(struct __sk_buff, data_end)), |
| 3134 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3135 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 3136 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), |
| 3137 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), |
| 3138 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 3139 | BPF_MOV64_IMM(BPF_REG_4, 42), |
| 3140 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3141 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3142 | BPF_FUNC_skb_store_bytes), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3143 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3144 | BPF_EXIT_INSN(), |
| 3145 | }, |
| 3146 | .result = REJECT, |
| 3147 | .errstr = "helper access to the packet", |
| 3148 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3149 | }, |
| 3150 | { |
| 3151 | "helper access to packet: test12, cls unsuitable helper 2", |
| 3152 | .insns = { |
| 3153 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3154 | offsetof(struct __sk_buff, data)), |
| 3155 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3156 | offsetof(struct __sk_buff, data_end)), |
| 3157 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 3158 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), |
| 3159 | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), |
| 3160 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 3161 | BPF_MOV64_IMM(BPF_REG_4, 4), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3162 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3163 | BPF_FUNC_skb_load_bytes), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3164 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3165 | BPF_EXIT_INSN(), |
| 3166 | }, |
| 3167 | .result = REJECT, |
| 3168 | .errstr = "helper access to the packet", |
| 3169 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3170 | }, |
| 3171 | { |
| 3172 | "helper access to packet: test13, cls helper ok", |
| 3173 | .insns = { |
| 3174 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3175 | offsetof(struct __sk_buff, data)), |
| 3176 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3177 | offsetof(struct __sk_buff, data_end)), |
| 3178 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3179 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3180 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3181 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3182 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3183 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 3184 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3185 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3186 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3187 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3188 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3189 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3190 | BPF_EXIT_INSN(), |
| 3191 | }, |
| 3192 | .result = ACCEPT, |
| 3193 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3194 | }, |
| 3195 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3196 | "helper access to packet: test14, cls helper ok sub", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3197 | .insns = { |
| 3198 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3199 | offsetof(struct __sk_buff, data)), |
| 3200 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3201 | offsetof(struct __sk_buff, data_end)), |
| 3202 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3203 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3204 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3205 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3206 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), |
| 3207 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 3208 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3209 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3210 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3211 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3212 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3213 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3214 | BPF_EXIT_INSN(), |
| 3215 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3216 | .result = ACCEPT, |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3217 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3218 | }, |
| 3219 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3220 | "helper access to packet: test15, cls helper fail sub", |
| 3221 | .insns = { |
| 3222 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3223 | offsetof(struct __sk_buff, data)), |
| 3224 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3225 | offsetof(struct __sk_buff, data_end)), |
| 3226 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3227 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3228 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3229 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3230 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12), |
| 3231 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 3232 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3233 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3234 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 3235 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3236 | BPF_FUNC_csum_diff), |
| 3237 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3238 | BPF_EXIT_INSN(), |
| 3239 | }, |
| 3240 | .result = REJECT, |
| 3241 | .errstr = "invalid access to packet", |
| 3242 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3243 | }, |
| 3244 | { |
| 3245 | "helper access to packet: test16, cls helper fail range 1", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3246 | .insns = { |
| 3247 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3248 | offsetof(struct __sk_buff, data)), |
| 3249 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3250 | offsetof(struct __sk_buff, data_end)), |
| 3251 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3252 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3253 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3254 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3255 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3256 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 3257 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3258 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3259 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3260 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3261 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3262 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3263 | BPF_EXIT_INSN(), |
| 3264 | }, |
| 3265 | .result = REJECT, |
| 3266 | .errstr = "invalid access to packet", |
| 3267 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3268 | }, |
| 3269 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3270 | "helper access to packet: test17, cls helper fail range 2", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3271 | .insns = { |
| 3272 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3273 | offsetof(struct __sk_buff, data)), |
| 3274 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3275 | offsetof(struct __sk_buff, data_end)), |
| 3276 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3277 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3278 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3279 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3280 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3281 | BPF_MOV64_IMM(BPF_REG_2, -9), |
| 3282 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3283 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3284 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3285 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3286 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3287 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3288 | BPF_EXIT_INSN(), |
| 3289 | }, |
| 3290 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3291 | .errstr = "R2 min value is negative", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3292 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3293 | }, |
| 3294 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3295 | "helper access to packet: test18, cls helper fail range 3", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3296 | .insns = { |
| 3297 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3298 | offsetof(struct __sk_buff, data)), |
| 3299 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3300 | offsetof(struct __sk_buff, data_end)), |
| 3301 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3302 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3303 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3304 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3305 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3306 | BPF_MOV64_IMM(BPF_REG_2, ~0), |
| 3307 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3308 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3309 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3310 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3311 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3312 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3313 | BPF_EXIT_INSN(), |
| 3314 | }, |
| 3315 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3316 | .errstr = "R2 min value is negative", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3317 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3318 | }, |
| 3319 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3320 | "helper access to packet: test19, cls helper fail range zero", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3321 | .insns = { |
| 3322 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3323 | offsetof(struct __sk_buff, data)), |
| 3324 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3325 | offsetof(struct __sk_buff, data_end)), |
| 3326 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3327 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3328 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3329 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3330 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3331 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 3332 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3333 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3334 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3335 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3336 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3337 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3338 | BPF_EXIT_INSN(), |
| 3339 | }, |
| 3340 | .result = REJECT, |
| 3341 | .errstr = "invalid access to packet", |
| 3342 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3343 | }, |
| 3344 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3345 | "helper access to packet: test20, pkt end as input", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3346 | .insns = { |
| 3347 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3348 | offsetof(struct __sk_buff, data)), |
| 3349 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3350 | offsetof(struct __sk_buff, data_end)), |
| 3351 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3352 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3353 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3354 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3355 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), |
| 3356 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 3357 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3358 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3359 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3360 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3361 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3362 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3363 | BPF_EXIT_INSN(), |
| 3364 | }, |
| 3365 | .result = REJECT, |
| 3366 | .errstr = "R1 type=pkt_end expected=fp", |
| 3367 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3368 | }, |
| 3369 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3370 | "helper access to packet: test21, wrong reg", |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3371 | .insns = { |
| 3372 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, |
| 3373 | offsetof(struct __sk_buff, data)), |
| 3374 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, |
| 3375 | offsetof(struct __sk_buff, data_end)), |
| 3376 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), |
| 3377 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), |
| 3378 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), |
| 3379 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), |
| 3380 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 3381 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3382 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 3383 | BPF_MOV64_IMM(BPF_REG_5, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3384 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3385 | BPF_FUNC_csum_diff), |
Daniel Borkmann | 7d95b0a | 2016-09-20 00:26:14 +0200 | [diff] [blame] | 3386 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3387 | BPF_EXIT_INSN(), |
| 3388 | }, |
| 3389 | .result = REJECT, |
| 3390 | .errstr = "invalid access to packet", |
| 3391 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 3392 | }, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3393 | { |
| 3394 | "valid map access into an array with a constant", |
| 3395 | .insns = { |
| 3396 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3397 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3398 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3399 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3400 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3401 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3402 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3403 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3404 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3405 | BPF_EXIT_INSN(), |
| 3406 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3407 | .fixup_map2 = { 3 }, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3408 | .errstr_unpriv = "R0 leaks addr", |
| 3409 | .result_unpriv = REJECT, |
| 3410 | .result = ACCEPT, |
| 3411 | }, |
| 3412 | { |
| 3413 | "valid map access into an array with a register", |
| 3414 | .insns = { |
| 3415 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3416 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3417 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3418 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3419 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3420 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3421 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 3422 | BPF_MOV64_IMM(BPF_REG_1, 4), |
| 3423 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3424 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3425 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3426 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3427 | BPF_EXIT_INSN(), |
| 3428 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3429 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3430 | .errstr_unpriv = "R0 leaks addr", |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3431 | .result_unpriv = REJECT, |
| 3432 | .result = ACCEPT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3433 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3434 | }, |
| 3435 | { |
| 3436 | "valid map access into an array with a variable", |
| 3437 | .insns = { |
| 3438 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3439 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3440 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3441 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3442 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3443 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3444 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 3445 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 3446 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), |
| 3447 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3448 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3449 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3450 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3451 | BPF_EXIT_INSN(), |
| 3452 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3453 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3454 | .errstr_unpriv = "R0 leaks addr", |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3455 | .result_unpriv = REJECT, |
| 3456 | .result = ACCEPT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3457 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3458 | }, |
| 3459 | { |
| 3460 | "valid map access into an array with a signed variable", |
| 3461 | .insns = { |
| 3462 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3463 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3464 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3465 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3466 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3467 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3468 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 3469 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 3470 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), |
| 3471 | BPF_MOV32_IMM(BPF_REG_1, 0), |
| 3472 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), |
| 3473 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), |
| 3474 | BPF_MOV32_IMM(BPF_REG_1, 0), |
| 3475 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3476 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3477 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3478 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3479 | BPF_EXIT_INSN(), |
| 3480 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3481 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3482 | .errstr_unpriv = "R0 leaks addr", |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3483 | .result_unpriv = REJECT, |
| 3484 | .result = ACCEPT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3485 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3486 | }, |
| 3487 | { |
| 3488 | "invalid map access into an array with a constant", |
| 3489 | .insns = { |
| 3490 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3491 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3492 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3493 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3494 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3495 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3496 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3497 | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, |
| 3498 | offsetof(struct test_val, foo)), |
| 3499 | BPF_EXIT_INSN(), |
| 3500 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3501 | .fixup_map2 = { 3 }, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3502 | .errstr = "invalid access to map value, value_size=48 off=48 size=8", |
| 3503 | .result = REJECT, |
| 3504 | }, |
| 3505 | { |
| 3506 | "invalid map access into an array with a register", |
| 3507 | .insns = { |
| 3508 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3509 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3510 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3511 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3512 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3513 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3514 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 3515 | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), |
| 3516 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3517 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3518 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3519 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3520 | BPF_EXIT_INSN(), |
| 3521 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3522 | .fixup_map2 = { 3 }, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3523 | .errstr = "R0 min value is outside of the array range", |
| 3524 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3525 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3526 | }, |
| 3527 | { |
| 3528 | "invalid map access into an array with a variable", |
| 3529 | .insns = { |
| 3530 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3531 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3532 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3533 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3534 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3535 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3536 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 3537 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 3538 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3539 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3540 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3541 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3542 | BPF_EXIT_INSN(), |
| 3543 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3544 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3545 | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3546 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3547 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3548 | }, |
| 3549 | { |
| 3550 | "invalid map access into an array with no floor check", |
| 3551 | .insns = { |
| 3552 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3553 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3554 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3555 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3556 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3557 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3558 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3559 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3560 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), |
| 3561 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), |
| 3562 | BPF_MOV32_IMM(BPF_REG_1, 0), |
| 3563 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3564 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3565 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3566 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3567 | BPF_EXIT_INSN(), |
| 3568 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3569 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3570 | .errstr_unpriv = "R0 leaks addr", |
| 3571 | .errstr = "R0 unbounded memory access", |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3572 | .result_unpriv = REJECT, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3573 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3574 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3575 | }, |
| 3576 | { |
| 3577 | "invalid map access into an array with a invalid max check", |
| 3578 | .insns = { |
| 3579 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3580 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3581 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3582 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3583 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3584 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3585 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 3586 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 3587 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), |
| 3588 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), |
| 3589 | BPF_MOV32_IMM(BPF_REG_1, 0), |
| 3590 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3591 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3592 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 3593 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3594 | BPF_EXIT_INSN(), |
| 3595 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3596 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3597 | .errstr_unpriv = "R0 leaks addr", |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3598 | .errstr = "invalid access to map value, value_size=48 off=44 size=8", |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3599 | .result_unpriv = REJECT, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3600 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3601 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3602 | }, |
| 3603 | { |
| 3604 | "invalid map access into an array with a invalid max check", |
| 3605 | .insns = { |
| 3606 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3607 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3608 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3609 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3610 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3611 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3612 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
| 3613 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), |
| 3614 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3615 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3617 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3618 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3619 | BPF_FUNC_map_lookup_elem), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3620 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 3621 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3622 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 3623 | offsetof(struct test_val, foo)), |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3624 | BPF_EXIT_INSN(), |
| 3625 | }, |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3626 | .fixup_map2 = { 3, 11 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3627 | .errstr_unpriv = "R0 pointer += pointer", |
| 3628 | .errstr = "R0 invalid mem access 'inv'", |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 3629 | .result_unpriv = REJECT, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3630 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3631 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 4846113 | 2016-09-28 10:54:32 -0400 | [diff] [blame] | 3632 | }, |
Thomas Graf | 57a09bf | 2016-10-18 19:51:19 +0200 | [diff] [blame] | 3633 | { |
| 3634 | "multiple registers share map_lookup_elem result", |
| 3635 | .insns = { |
| 3636 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3637 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3638 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3639 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3640 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3641 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3642 | BPF_FUNC_map_lookup_elem), |
| 3643 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3644 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3645 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3646 | BPF_EXIT_INSN(), |
| 3647 | }, |
| 3648 | .fixup_map1 = { 4 }, |
| 3649 | .result = ACCEPT, |
| 3650 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3651 | }, |
| 3652 | { |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 3653 | "alu ops on ptr_to_map_value_or_null, 1", |
| 3654 | .insns = { |
| 3655 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3656 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3657 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3658 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3659 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3660 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3661 | BPF_FUNC_map_lookup_elem), |
| 3662 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3663 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2), |
| 3664 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2), |
| 3665 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3666 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3667 | BPF_EXIT_INSN(), |
| 3668 | }, |
| 3669 | .fixup_map1 = { 4 }, |
| 3670 | .errstr = "R4 invalid mem access", |
| 3671 | .result = REJECT, |
| 3672 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3673 | }, |
| 3674 | { |
| 3675 | "alu ops on ptr_to_map_value_or_null, 2", |
| 3676 | .insns = { |
| 3677 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3678 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3679 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3680 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3681 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3682 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3683 | BPF_FUNC_map_lookup_elem), |
| 3684 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3685 | BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1), |
| 3686 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3687 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3688 | BPF_EXIT_INSN(), |
| 3689 | }, |
| 3690 | .fixup_map1 = { 4 }, |
| 3691 | .errstr = "R4 invalid mem access", |
| 3692 | .result = REJECT, |
| 3693 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3694 | }, |
| 3695 | { |
| 3696 | "alu ops on ptr_to_map_value_or_null, 3", |
| 3697 | .insns = { |
| 3698 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3699 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3700 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3701 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3702 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3703 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3704 | BPF_FUNC_map_lookup_elem), |
| 3705 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3706 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1), |
| 3707 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3708 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3709 | BPF_EXIT_INSN(), |
| 3710 | }, |
| 3711 | .fixup_map1 = { 4 }, |
| 3712 | .errstr = "R4 invalid mem access", |
| 3713 | .result = REJECT, |
| 3714 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3715 | }, |
| 3716 | { |
Thomas Graf | 57a09bf | 2016-10-18 19:51:19 +0200 | [diff] [blame] | 3717 | "invalid memory access with multiple map_lookup_elem calls", |
| 3718 | .insns = { |
| 3719 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3720 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3721 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3722 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3723 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3724 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), |
| 3725 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), |
| 3726 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3727 | BPF_FUNC_map_lookup_elem), |
| 3728 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3729 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), |
| 3730 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), |
| 3731 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3732 | BPF_FUNC_map_lookup_elem), |
| 3733 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3734 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3735 | BPF_EXIT_INSN(), |
| 3736 | }, |
| 3737 | .fixup_map1 = { 4 }, |
| 3738 | .result = REJECT, |
| 3739 | .errstr = "R4 !read_ok", |
| 3740 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3741 | }, |
| 3742 | { |
| 3743 | "valid indirect map_lookup_elem access with 2nd lookup in branch", |
| 3744 | .insns = { |
| 3745 | BPF_MOV64_IMM(BPF_REG_1, 10), |
| 3746 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 3747 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3748 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3749 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3750 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), |
| 3751 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), |
| 3752 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3753 | BPF_FUNC_map_lookup_elem), |
| 3754 | BPF_MOV64_IMM(BPF_REG_2, 10), |
| 3755 | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), |
| 3756 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), |
| 3757 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), |
| 3758 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 3759 | BPF_FUNC_map_lookup_elem), |
| 3760 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), |
| 3761 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 3762 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), |
| 3763 | BPF_EXIT_INSN(), |
| 3764 | }, |
| 3765 | .fixup_map1 = { 4 }, |
| 3766 | .result = ACCEPT, |
| 3767 | .prog_type = BPF_PROG_TYPE_SCHED_CLS |
| 3768 | }, |
Josef Bacik | e954890 | 2016-11-29 12:35:19 -0500 | [diff] [blame] | 3769 | { |
| 3770 | "invalid map access from else condition", |
| 3771 | .insns = { |
| 3772 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 3773 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 3774 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 3775 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 3776 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 3777 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 3778 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 3779 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), |
| 3780 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), |
| 3781 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 3782 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 3783 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), |
| 3784 | BPF_EXIT_INSN(), |
| 3785 | }, |
| 3786 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3787 | .errstr = "R0 unbounded memory access", |
Josef Bacik | e954890 | 2016-11-29 12:35:19 -0500 | [diff] [blame] | 3788 | .result = REJECT, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 3789 | .errstr_unpriv = "R0 leaks addr", |
Josef Bacik | e954890 | 2016-11-29 12:35:19 -0500 | [diff] [blame] | 3790 | .result_unpriv = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 3791 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | e954890 | 2016-11-29 12:35:19 -0500 | [diff] [blame] | 3792 | }, |
Gianluca Borello | 3c839744 | 2016-12-03 12:31:33 -0800 | [diff] [blame] | 3793 | { |
| 3794 | "constant register |= constant should keep constant type", |
| 3795 | .insns = { |
| 3796 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 3797 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), |
| 3798 | BPF_MOV64_IMM(BPF_REG_2, 34), |
| 3799 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), |
| 3800 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3801 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 3802 | BPF_EXIT_INSN(), |
| 3803 | }, |
| 3804 | .result = ACCEPT, |
| 3805 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 3806 | }, |
| 3807 | { |
| 3808 | "constant register |= constant should not bypass stack boundary checks", |
| 3809 | .insns = { |
| 3810 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 3811 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), |
| 3812 | BPF_MOV64_IMM(BPF_REG_2, 34), |
| 3813 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), |
| 3814 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3815 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 3816 | BPF_EXIT_INSN(), |
| 3817 | }, |
| 3818 | .errstr = "invalid stack type R1 off=-48 access_size=58", |
| 3819 | .result = REJECT, |
| 3820 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 3821 | }, |
| 3822 | { |
| 3823 | "constant register |= constant register should keep constant type", |
| 3824 | .insns = { |
| 3825 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 3826 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), |
| 3827 | BPF_MOV64_IMM(BPF_REG_2, 34), |
| 3828 | BPF_MOV64_IMM(BPF_REG_4, 13), |
| 3829 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), |
| 3830 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3831 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 3832 | BPF_EXIT_INSN(), |
| 3833 | }, |
| 3834 | .result = ACCEPT, |
| 3835 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 3836 | }, |
| 3837 | { |
| 3838 | "constant register |= constant register should not bypass stack boundary checks", |
| 3839 | .insns = { |
| 3840 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 3841 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), |
| 3842 | BPF_MOV64_IMM(BPF_REG_2, 34), |
| 3843 | BPF_MOV64_IMM(BPF_REG_4, 24), |
| 3844 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), |
| 3845 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 3846 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 3847 | BPF_EXIT_INSN(), |
| 3848 | }, |
| 3849 | .errstr = "invalid stack type R1 off=-48 access_size=58", |
| 3850 | .result = REJECT, |
| 3851 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 3852 | }, |
Thomas Graf | 3f731d8 | 2016-12-05 10:30:52 +0100 | [diff] [blame] | 3853 | { |
| 3854 | "invalid direct packet write for LWT_IN", |
| 3855 | .insns = { |
| 3856 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3857 | offsetof(struct __sk_buff, data)), |
| 3858 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3859 | offsetof(struct __sk_buff, data_end)), |
| 3860 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3861 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3862 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3863 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 3864 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3865 | BPF_EXIT_INSN(), |
| 3866 | }, |
| 3867 | .errstr = "cannot write into packet", |
| 3868 | .result = REJECT, |
| 3869 | .prog_type = BPF_PROG_TYPE_LWT_IN, |
| 3870 | }, |
| 3871 | { |
| 3872 | "invalid direct packet write for LWT_OUT", |
| 3873 | .insns = { |
| 3874 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3875 | offsetof(struct __sk_buff, data)), |
| 3876 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3877 | offsetof(struct __sk_buff, data_end)), |
| 3878 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3879 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3880 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3881 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 3882 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3883 | BPF_EXIT_INSN(), |
| 3884 | }, |
| 3885 | .errstr = "cannot write into packet", |
| 3886 | .result = REJECT, |
| 3887 | .prog_type = BPF_PROG_TYPE_LWT_OUT, |
| 3888 | }, |
| 3889 | { |
| 3890 | "direct packet write for LWT_XMIT", |
| 3891 | .insns = { |
| 3892 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3893 | offsetof(struct __sk_buff, data)), |
| 3894 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3895 | offsetof(struct __sk_buff, data_end)), |
| 3896 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3897 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3898 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3899 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 3900 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3901 | BPF_EXIT_INSN(), |
| 3902 | }, |
| 3903 | .result = ACCEPT, |
| 3904 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, |
| 3905 | }, |
| 3906 | { |
| 3907 | "direct packet read for LWT_IN", |
| 3908 | .insns = { |
| 3909 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3910 | offsetof(struct __sk_buff, data)), |
| 3911 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3912 | offsetof(struct __sk_buff, data_end)), |
| 3913 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3914 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3915 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3916 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 3917 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3918 | BPF_EXIT_INSN(), |
| 3919 | }, |
| 3920 | .result = ACCEPT, |
| 3921 | .prog_type = BPF_PROG_TYPE_LWT_IN, |
| 3922 | }, |
| 3923 | { |
| 3924 | "direct packet read for LWT_OUT", |
| 3925 | .insns = { |
| 3926 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3927 | offsetof(struct __sk_buff, data)), |
| 3928 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3929 | offsetof(struct __sk_buff, data_end)), |
| 3930 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3931 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3932 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3933 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 3934 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3935 | BPF_EXIT_INSN(), |
| 3936 | }, |
| 3937 | .result = ACCEPT, |
| 3938 | .prog_type = BPF_PROG_TYPE_LWT_OUT, |
| 3939 | }, |
| 3940 | { |
| 3941 | "direct packet read for LWT_XMIT", |
| 3942 | .insns = { |
| 3943 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3944 | offsetof(struct __sk_buff, data)), |
| 3945 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3946 | offsetof(struct __sk_buff, data_end)), |
| 3947 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3948 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3949 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 3950 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 3951 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3952 | BPF_EXIT_INSN(), |
| 3953 | }, |
| 3954 | .result = ACCEPT, |
| 3955 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, |
| 3956 | }, |
| 3957 | { |
Alexei Starovoitov | b197768 | 2017-03-24 15:57:33 -0700 | [diff] [blame] | 3958 | "overlapping checks for direct packet access", |
| 3959 | .insns = { |
| 3960 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 3961 | offsetof(struct __sk_buff, data)), |
| 3962 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 3963 | offsetof(struct __sk_buff, data_end)), |
| 3964 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 3965 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 3966 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), |
| 3967 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), |
| 3968 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), |
| 3969 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), |
| 3970 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), |
| 3971 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 3972 | BPF_EXIT_INSN(), |
| 3973 | }, |
| 3974 | .result = ACCEPT, |
| 3975 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, |
| 3976 | }, |
| 3977 | { |
Thomas Graf | 3f731d8 | 2016-12-05 10:30:52 +0100 | [diff] [blame] | 3978 | "invalid access of tc_classid for LWT_IN", |
| 3979 | .insns = { |
| 3980 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 3981 | offsetof(struct __sk_buff, tc_classid)), |
| 3982 | BPF_EXIT_INSN(), |
| 3983 | }, |
| 3984 | .result = REJECT, |
| 3985 | .errstr = "invalid bpf_context access", |
| 3986 | }, |
| 3987 | { |
| 3988 | "invalid access of tc_classid for LWT_OUT", |
| 3989 | .insns = { |
| 3990 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 3991 | offsetof(struct __sk_buff, tc_classid)), |
| 3992 | BPF_EXIT_INSN(), |
| 3993 | }, |
| 3994 | .result = REJECT, |
| 3995 | .errstr = "invalid bpf_context access", |
| 3996 | }, |
| 3997 | { |
| 3998 | "invalid access of tc_classid for LWT_XMIT", |
| 3999 | .insns = { |
| 4000 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 4001 | offsetof(struct __sk_buff, tc_classid)), |
| 4002 | BPF_EXIT_INSN(), |
| 4003 | }, |
| 4004 | .result = REJECT, |
| 4005 | .errstr = "invalid bpf_context access", |
| 4006 | }, |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4007 | { |
Daniel Borkmann | 6bdf6ab | 2017-06-29 03:04:59 +0200 | [diff] [blame] | 4008 | "leak pointer into ctx 1", |
| 4009 | .insns = { |
| 4010 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4011 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 4012 | offsetof(struct __sk_buff, cb[0])), |
| 4013 | BPF_LD_MAP_FD(BPF_REG_2, 0), |
| 4014 | BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2, |
| 4015 | offsetof(struct __sk_buff, cb[0])), |
| 4016 | BPF_EXIT_INSN(), |
| 4017 | }, |
| 4018 | .fixup_map1 = { 2 }, |
| 4019 | .errstr_unpriv = "R2 leaks addr into mem", |
| 4020 | .result_unpriv = REJECT, |
| 4021 | .result = ACCEPT, |
| 4022 | }, |
| 4023 | { |
| 4024 | "leak pointer into ctx 2", |
| 4025 | .insns = { |
| 4026 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4027 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, |
| 4028 | offsetof(struct __sk_buff, cb[0])), |
| 4029 | BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10, |
| 4030 | offsetof(struct __sk_buff, cb[0])), |
| 4031 | BPF_EXIT_INSN(), |
| 4032 | }, |
| 4033 | .errstr_unpriv = "R10 leaks addr into mem", |
| 4034 | .result_unpriv = REJECT, |
| 4035 | .result = ACCEPT, |
| 4036 | }, |
| 4037 | { |
| 4038 | "leak pointer into ctx 3", |
| 4039 | .insns = { |
| 4040 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4041 | BPF_LD_MAP_FD(BPF_REG_2, 0), |
| 4042 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, |
| 4043 | offsetof(struct __sk_buff, cb[0])), |
| 4044 | BPF_EXIT_INSN(), |
| 4045 | }, |
| 4046 | .fixup_map1 = { 1 }, |
| 4047 | .errstr_unpriv = "R2 leaks addr into ctx", |
| 4048 | .result_unpriv = REJECT, |
| 4049 | .result = ACCEPT, |
| 4050 | }, |
| 4051 | { |
| 4052 | "leak pointer into map val", |
| 4053 | .insns = { |
| 4054 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 4055 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 4056 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4057 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4058 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4059 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 4060 | BPF_FUNC_map_lookup_elem), |
| 4061 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3), |
| 4062 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4063 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0), |
| 4064 | BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 4065 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4066 | BPF_EXIT_INSN(), |
| 4067 | }, |
| 4068 | .fixup_map1 = { 4 }, |
| 4069 | .errstr_unpriv = "R6 leaks addr into mem", |
| 4070 | .result_unpriv = REJECT, |
| 4071 | .result = ACCEPT, |
| 4072 | }, |
| 4073 | { |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4074 | "helper access to map: full range", |
| 4075 | .insns = { |
| 4076 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4077 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4078 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4079 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4080 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4081 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4082 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4083 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), |
| 4084 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4085 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4086 | BPF_EXIT_INSN(), |
| 4087 | }, |
| 4088 | .fixup_map2 = { 3 }, |
| 4089 | .result = ACCEPT, |
| 4090 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4091 | }, |
| 4092 | { |
| 4093 | "helper access to map: partial range", |
| 4094 | .insns = { |
| 4095 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4096 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4097 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4098 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4099 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4100 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4101 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4102 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 4103 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4104 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4105 | BPF_EXIT_INSN(), |
| 4106 | }, |
| 4107 | .fixup_map2 = { 3 }, |
| 4108 | .result = ACCEPT, |
| 4109 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4110 | }, |
| 4111 | { |
| 4112 | "helper access to map: empty range", |
| 4113 | .insns = { |
| 4114 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4115 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4116 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4117 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4118 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4119 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4120 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4121 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 4122 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4123 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4124 | BPF_EXIT_INSN(), |
| 4125 | }, |
| 4126 | .fixup_map2 = { 3 }, |
| 4127 | .errstr = "invalid access to map value, value_size=48 off=0 size=0", |
| 4128 | .result = REJECT, |
| 4129 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4130 | }, |
| 4131 | { |
| 4132 | "helper access to map: out-of-bound range", |
| 4133 | .insns = { |
| 4134 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4135 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4136 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4137 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4138 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4139 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4140 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4141 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), |
| 4142 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4143 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4144 | BPF_EXIT_INSN(), |
| 4145 | }, |
| 4146 | .fixup_map2 = { 3 }, |
| 4147 | .errstr = "invalid access to map value, value_size=48 off=0 size=56", |
| 4148 | .result = REJECT, |
| 4149 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4150 | }, |
| 4151 | { |
| 4152 | "helper access to map: negative range", |
| 4153 | .insns = { |
| 4154 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4155 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4156 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4157 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4158 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4159 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4160 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4161 | BPF_MOV64_IMM(BPF_REG_2, -8), |
| 4162 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4163 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4164 | BPF_EXIT_INSN(), |
| 4165 | }, |
| 4166 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4167 | .errstr = "R2 min value is negative", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4168 | .result = REJECT, |
| 4169 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4170 | }, |
| 4171 | { |
| 4172 | "helper access to adjusted map (via const imm): full range", |
| 4173 | .insns = { |
| 4174 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4175 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4176 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4177 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4178 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4179 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4180 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4181 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4182 | offsetof(struct test_val, foo)), |
| 4183 | BPF_MOV64_IMM(BPF_REG_2, |
| 4184 | sizeof(struct test_val) - |
| 4185 | offsetof(struct test_val, foo)), |
| 4186 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4187 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4188 | BPF_EXIT_INSN(), |
| 4189 | }, |
| 4190 | .fixup_map2 = { 3 }, |
| 4191 | .result = ACCEPT, |
| 4192 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4193 | }, |
| 4194 | { |
| 4195 | "helper access to adjusted map (via const imm): partial range", |
| 4196 | .insns = { |
| 4197 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4198 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4199 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4200 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4201 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4202 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4203 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4204 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4205 | offsetof(struct test_val, foo)), |
| 4206 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 4207 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4208 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4209 | BPF_EXIT_INSN(), |
| 4210 | }, |
| 4211 | .fixup_map2 = { 3 }, |
| 4212 | .result = ACCEPT, |
| 4213 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4214 | }, |
| 4215 | { |
| 4216 | "helper access to adjusted map (via const imm): empty range", |
| 4217 | .insns = { |
| 4218 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4219 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4220 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4221 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4222 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4223 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4224 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4225 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4226 | offsetof(struct test_val, foo)), |
| 4227 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 4228 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4229 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4230 | BPF_EXIT_INSN(), |
| 4231 | }, |
| 4232 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4233 | .errstr = "invalid access to map value, value_size=48 off=4 size=0", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4234 | .result = REJECT, |
| 4235 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4236 | }, |
| 4237 | { |
| 4238 | "helper access to adjusted map (via const imm): out-of-bound range", |
| 4239 | .insns = { |
| 4240 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4241 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4242 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4243 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4244 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4245 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4246 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4247 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4248 | offsetof(struct test_val, foo)), |
| 4249 | BPF_MOV64_IMM(BPF_REG_2, |
| 4250 | sizeof(struct test_val) - |
| 4251 | offsetof(struct test_val, foo) + 8), |
| 4252 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4253 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4254 | BPF_EXIT_INSN(), |
| 4255 | }, |
| 4256 | .fixup_map2 = { 3 }, |
| 4257 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", |
| 4258 | .result = REJECT, |
| 4259 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4260 | }, |
| 4261 | { |
| 4262 | "helper access to adjusted map (via const imm): negative range (> adjustment)", |
| 4263 | .insns = { |
| 4264 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4265 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4266 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4267 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4268 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4269 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4270 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4271 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4272 | offsetof(struct test_val, foo)), |
| 4273 | BPF_MOV64_IMM(BPF_REG_2, -8), |
| 4274 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4275 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4276 | BPF_EXIT_INSN(), |
| 4277 | }, |
| 4278 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4279 | .errstr = "R2 min value is negative", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4280 | .result = REJECT, |
| 4281 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4282 | }, |
| 4283 | { |
| 4284 | "helper access to adjusted map (via const imm): negative range (< adjustment)", |
| 4285 | .insns = { |
| 4286 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4287 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4288 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4289 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4290 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4291 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 4292 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4293 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, |
| 4294 | offsetof(struct test_val, foo)), |
| 4295 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 4296 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4297 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4298 | BPF_EXIT_INSN(), |
| 4299 | }, |
| 4300 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4301 | .errstr = "R2 min value is negative", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4302 | .result = REJECT, |
| 4303 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4304 | }, |
| 4305 | { |
| 4306 | "helper access to adjusted map (via const reg): full range", |
| 4307 | .insns = { |
| 4308 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4309 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4310 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4311 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4312 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4313 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4314 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4315 | BPF_MOV64_IMM(BPF_REG_3, |
| 4316 | offsetof(struct test_val, foo)), |
| 4317 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4318 | BPF_MOV64_IMM(BPF_REG_2, |
| 4319 | sizeof(struct test_val) - |
| 4320 | offsetof(struct test_val, foo)), |
| 4321 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4322 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4323 | BPF_EXIT_INSN(), |
| 4324 | }, |
| 4325 | .fixup_map2 = { 3 }, |
| 4326 | .result = ACCEPT, |
| 4327 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4328 | }, |
| 4329 | { |
| 4330 | "helper access to adjusted map (via const reg): partial range", |
| 4331 | .insns = { |
| 4332 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4333 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4334 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4335 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4336 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4337 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4338 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4339 | BPF_MOV64_IMM(BPF_REG_3, |
| 4340 | offsetof(struct test_val, foo)), |
| 4341 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4342 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 4343 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4344 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4345 | BPF_EXIT_INSN(), |
| 4346 | }, |
| 4347 | .fixup_map2 = { 3 }, |
| 4348 | .result = ACCEPT, |
| 4349 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4350 | }, |
| 4351 | { |
| 4352 | "helper access to adjusted map (via const reg): empty range", |
| 4353 | .insns = { |
| 4354 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4355 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4356 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4357 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4358 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4359 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4360 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4361 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4362 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4363 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 4364 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4365 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4366 | BPF_EXIT_INSN(), |
| 4367 | }, |
| 4368 | .fixup_map2 = { 3 }, |
| 4369 | .errstr = "R1 min value is outside of the array range", |
| 4370 | .result = REJECT, |
| 4371 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4372 | }, |
| 4373 | { |
| 4374 | "helper access to adjusted map (via const reg): out-of-bound range", |
| 4375 | .insns = { |
| 4376 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4377 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4378 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4379 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4380 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4381 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4382 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4383 | BPF_MOV64_IMM(BPF_REG_3, |
| 4384 | offsetof(struct test_val, foo)), |
| 4385 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4386 | BPF_MOV64_IMM(BPF_REG_2, |
| 4387 | sizeof(struct test_val) - |
| 4388 | offsetof(struct test_val, foo) + 8), |
| 4389 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4390 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4391 | BPF_EXIT_INSN(), |
| 4392 | }, |
| 4393 | .fixup_map2 = { 3 }, |
| 4394 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", |
| 4395 | .result = REJECT, |
| 4396 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4397 | }, |
| 4398 | { |
| 4399 | "helper access to adjusted map (via const reg): negative range (> adjustment)", |
| 4400 | .insns = { |
| 4401 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4402 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4403 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4404 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4405 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4406 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4407 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4408 | BPF_MOV64_IMM(BPF_REG_3, |
| 4409 | offsetof(struct test_val, foo)), |
| 4410 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4411 | BPF_MOV64_IMM(BPF_REG_2, -8), |
| 4412 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4413 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4414 | BPF_EXIT_INSN(), |
| 4415 | }, |
| 4416 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4417 | .errstr = "R2 min value is negative", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4418 | .result = REJECT, |
| 4419 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4420 | }, |
| 4421 | { |
| 4422 | "helper access to adjusted map (via const reg): negative range (< adjustment)", |
| 4423 | .insns = { |
| 4424 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4425 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4426 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4427 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4428 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4429 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4430 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4431 | BPF_MOV64_IMM(BPF_REG_3, |
| 4432 | offsetof(struct test_val, foo)), |
| 4433 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4434 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 4435 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4436 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4437 | BPF_EXIT_INSN(), |
| 4438 | }, |
| 4439 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4440 | .errstr = "R2 min value is negative", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4441 | .result = REJECT, |
| 4442 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4443 | }, |
| 4444 | { |
| 4445 | "helper access to adjusted map (via variable): full range", |
| 4446 | .insns = { |
| 4447 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4448 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4449 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4450 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4451 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4452 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 4453 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4454 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4455 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, |
| 4456 | offsetof(struct test_val, foo), 4), |
| 4457 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4458 | BPF_MOV64_IMM(BPF_REG_2, |
| 4459 | sizeof(struct test_val) - |
| 4460 | offsetof(struct test_val, foo)), |
| 4461 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4462 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4463 | BPF_EXIT_INSN(), |
| 4464 | }, |
| 4465 | .fixup_map2 = { 3 }, |
| 4466 | .result = ACCEPT, |
| 4467 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4468 | }, |
| 4469 | { |
| 4470 | "helper access to adjusted map (via variable): partial range", |
| 4471 | .insns = { |
| 4472 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4473 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4474 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4475 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4476 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4477 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 4478 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4479 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4480 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, |
| 4481 | offsetof(struct test_val, foo), 4), |
| 4482 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4483 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 4484 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4485 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4486 | BPF_EXIT_INSN(), |
| 4487 | }, |
| 4488 | .fixup_map2 = { 3 }, |
| 4489 | .result = ACCEPT, |
| 4490 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4491 | }, |
| 4492 | { |
| 4493 | "helper access to adjusted map (via variable): empty range", |
| 4494 | .insns = { |
| 4495 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4496 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4497 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4498 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4499 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4500 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 4501 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4502 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4503 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, |
| 4504 | offsetof(struct test_val, foo), 4), |
| 4505 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4506 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 4507 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4508 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4509 | BPF_EXIT_INSN(), |
| 4510 | }, |
| 4511 | .fixup_map2 = { 3 }, |
| 4512 | .errstr = "R1 min value is outside of the array range", |
| 4513 | .result = REJECT, |
| 4514 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4515 | }, |
| 4516 | { |
| 4517 | "helper access to adjusted map (via variable): no max check", |
| 4518 | .insns = { |
| 4519 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4520 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4521 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4522 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4523 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4524 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4525 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4526 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4527 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4528 | BPF_MOV64_IMM(BPF_REG_2, 1), |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4529 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4530 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4531 | BPF_EXIT_INSN(), |
| 4532 | }, |
| 4533 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4534 | .errstr = "R1 unbounded memory access", |
Gianluca Borello | 5722569 | 2017-01-09 10:19:47 -0800 | [diff] [blame] | 4535 | .result = REJECT, |
| 4536 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4537 | }, |
| 4538 | { |
| 4539 | "helper access to adjusted map (via variable): wrong max check", |
| 4540 | .insns = { |
| 4541 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4542 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4543 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4544 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4545 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4546 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 4547 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4548 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4549 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, |
| 4550 | offsetof(struct test_val, foo), 4), |
| 4551 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4552 | BPF_MOV64_IMM(BPF_REG_2, |
| 4553 | sizeof(struct test_val) - |
| 4554 | offsetof(struct test_val, foo) + 1), |
| 4555 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 4556 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 4557 | BPF_EXIT_INSN(), |
| 4558 | }, |
| 4559 | .fixup_map2 = { 3 }, |
| 4560 | .errstr = "invalid access to map value, value_size=48 off=4 size=45", |
| 4561 | .result = REJECT, |
| 4562 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4563 | }, |
Gianluca Borello | f0318d0 | 2017-01-09 10:19:48 -0800 | [diff] [blame] | 4564 | { |
Daniel Borkmann | 31e482b | 2017-08-10 01:40:03 +0200 | [diff] [blame^] | 4565 | "helper access to map: bounds check using <, good access", |
| 4566 | .insns = { |
| 4567 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4568 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4569 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4570 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4571 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4572 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4573 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4574 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4575 | BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2), |
| 4576 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4577 | BPF_EXIT_INSN(), |
| 4578 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4579 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4580 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4581 | BPF_EXIT_INSN(), |
| 4582 | }, |
| 4583 | .fixup_map2 = { 3 }, |
| 4584 | .result = ACCEPT, |
| 4585 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4586 | }, |
| 4587 | { |
| 4588 | "helper access to map: bounds check using <, bad access", |
| 4589 | .insns = { |
| 4590 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4591 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4592 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4593 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4594 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4595 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4596 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4597 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4598 | BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4), |
| 4599 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4600 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4601 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4602 | BPF_EXIT_INSN(), |
| 4603 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4604 | BPF_EXIT_INSN(), |
| 4605 | }, |
| 4606 | .fixup_map2 = { 3 }, |
| 4607 | .result = REJECT, |
| 4608 | .errstr = "R1 unbounded memory access", |
| 4609 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4610 | }, |
| 4611 | { |
| 4612 | "helper access to map: bounds check using <=, good access", |
| 4613 | .insns = { |
| 4614 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4615 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4616 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4617 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4618 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4619 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4620 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4621 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4622 | BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2), |
| 4623 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4624 | BPF_EXIT_INSN(), |
| 4625 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4626 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4627 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4628 | BPF_EXIT_INSN(), |
| 4629 | }, |
| 4630 | .fixup_map2 = { 3 }, |
| 4631 | .result = ACCEPT, |
| 4632 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4633 | }, |
| 4634 | { |
| 4635 | "helper access to map: bounds check using <=, bad access", |
| 4636 | .insns = { |
| 4637 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4638 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4639 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4640 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4641 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4642 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4643 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4644 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4645 | BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4), |
| 4646 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4647 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4648 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4649 | BPF_EXIT_INSN(), |
| 4650 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4651 | BPF_EXIT_INSN(), |
| 4652 | }, |
| 4653 | .fixup_map2 = { 3 }, |
| 4654 | .result = REJECT, |
| 4655 | .errstr = "R1 unbounded memory access", |
| 4656 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4657 | }, |
| 4658 | { |
| 4659 | "helper access to map: bounds check using s<, good access", |
| 4660 | .insns = { |
| 4661 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4662 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4663 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4664 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4665 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4666 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4667 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4668 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4669 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), |
| 4670 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4671 | BPF_EXIT_INSN(), |
| 4672 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3), |
| 4673 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4674 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4675 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4676 | BPF_EXIT_INSN(), |
| 4677 | }, |
| 4678 | .fixup_map2 = { 3 }, |
| 4679 | .result = ACCEPT, |
| 4680 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4681 | }, |
| 4682 | { |
| 4683 | "helper access to map: bounds check using s<, good access 2", |
| 4684 | .insns = { |
| 4685 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4686 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4687 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4688 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4689 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4690 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4691 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4692 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4693 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), |
| 4694 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4695 | BPF_EXIT_INSN(), |
| 4696 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), |
| 4697 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4698 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4699 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4700 | BPF_EXIT_INSN(), |
| 4701 | }, |
| 4702 | .fixup_map2 = { 3 }, |
| 4703 | .result = ACCEPT, |
| 4704 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4705 | }, |
| 4706 | { |
| 4707 | "helper access to map: bounds check using s<, bad access", |
| 4708 | .insns = { |
| 4709 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4710 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4711 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4712 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4713 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4714 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4715 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4716 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), |
| 4717 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), |
| 4718 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4719 | BPF_EXIT_INSN(), |
| 4720 | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), |
| 4721 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4722 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4723 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4724 | BPF_EXIT_INSN(), |
| 4725 | }, |
| 4726 | .fixup_map2 = { 3 }, |
| 4727 | .result = REJECT, |
| 4728 | .errstr = "R1 min value is negative", |
| 4729 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4730 | }, |
| 4731 | { |
| 4732 | "helper access to map: bounds check using s<=, good access", |
| 4733 | .insns = { |
| 4734 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4735 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4736 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4737 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4738 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4739 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4740 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4741 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4742 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), |
| 4743 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4744 | BPF_EXIT_INSN(), |
| 4745 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3), |
| 4746 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4747 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4748 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4749 | BPF_EXIT_INSN(), |
| 4750 | }, |
| 4751 | .fixup_map2 = { 3 }, |
| 4752 | .result = ACCEPT, |
| 4753 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4754 | }, |
| 4755 | { |
| 4756 | "helper access to map: bounds check using s<=, good access 2", |
| 4757 | .insns = { |
| 4758 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4759 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4760 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4761 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4762 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4763 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4764 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4765 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), |
| 4766 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), |
| 4767 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4768 | BPF_EXIT_INSN(), |
| 4769 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), |
| 4770 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4771 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4772 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4773 | BPF_EXIT_INSN(), |
| 4774 | }, |
| 4775 | .fixup_map2 = { 3 }, |
| 4776 | .result = ACCEPT, |
| 4777 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4778 | }, |
| 4779 | { |
| 4780 | "helper access to map: bounds check using s<=, bad access", |
| 4781 | .insns = { |
| 4782 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4783 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4784 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4785 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4786 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4787 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 4788 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 4789 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), |
| 4790 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), |
| 4791 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4792 | BPF_EXIT_INSN(), |
| 4793 | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), |
| 4794 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), |
| 4795 | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), |
| 4796 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 4797 | BPF_EXIT_INSN(), |
| 4798 | }, |
| 4799 | .fixup_map2 = { 3 }, |
| 4800 | .result = REJECT, |
| 4801 | .errstr = "R1 min value is negative", |
| 4802 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 4803 | }, |
| 4804 | { |
Gianluca Borello | f0318d0 | 2017-01-09 10:19:48 -0800 | [diff] [blame] | 4805 | "map element value is preserved across register spilling", |
| 4806 | .insns = { |
| 4807 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4808 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4809 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4810 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4811 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4812 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 4813 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), |
| 4814 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 4815 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), |
| 4816 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| 4817 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), |
| 4818 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), |
| 4819 | BPF_EXIT_INSN(), |
| 4820 | }, |
| 4821 | .fixup_map2 = { 3 }, |
| 4822 | .errstr_unpriv = "R0 leaks addr", |
| 4823 | .result = ACCEPT, |
| 4824 | .result_unpriv = REJECT, |
| 4825 | }, |
| 4826 | { |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4827 | "map element value or null is marked on register spilling", |
| 4828 | .insns = { |
| 4829 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4830 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4831 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4832 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4833 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4834 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 4835 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), |
| 4836 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| 4837 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 4838 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), |
| 4839 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), |
| 4840 | BPF_EXIT_INSN(), |
| 4841 | }, |
| 4842 | .fixup_map2 = { 3 }, |
| 4843 | .errstr_unpriv = "R0 leaks addr", |
| 4844 | .result = ACCEPT, |
| 4845 | .result_unpriv = REJECT, |
| 4846 | }, |
| 4847 | { |
| 4848 | "map element value store of cleared call register", |
| 4849 | .insns = { |
| 4850 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4851 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4852 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4853 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4854 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4855 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 4856 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), |
| 4857 | BPF_EXIT_INSN(), |
| 4858 | }, |
| 4859 | .fixup_map2 = { 3 }, |
| 4860 | .errstr_unpriv = "R1 !read_ok", |
| 4861 | .errstr = "R1 !read_ok", |
| 4862 | .result = REJECT, |
| 4863 | .result_unpriv = REJECT, |
| 4864 | }, |
| 4865 | { |
| 4866 | "map element value with unaligned store", |
| 4867 | .insns = { |
| 4868 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4869 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4870 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4871 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4872 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4873 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), |
| 4874 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), |
| 4875 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), |
| 4876 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), |
| 4877 | BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), |
| 4878 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), |
| 4879 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), |
| 4880 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), |
| 4881 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), |
| 4882 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), |
| 4883 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), |
| 4884 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), |
| 4885 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), |
| 4886 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), |
| 4887 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), |
| 4888 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), |
| 4889 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), |
| 4890 | BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), |
| 4891 | BPF_EXIT_INSN(), |
| 4892 | }, |
| 4893 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4894 | .errstr_unpriv = "R0 leaks addr", |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4895 | .result = ACCEPT, |
| 4896 | .result_unpriv = REJECT, |
| 4897 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| 4898 | }, |
| 4899 | { |
| 4900 | "map element value with unaligned load", |
| 4901 | .insns = { |
| 4902 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4903 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4904 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4905 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4906 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4907 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), |
| 4908 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 4909 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), |
| 4910 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), |
| 4911 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), |
| 4912 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), |
| 4913 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), |
| 4914 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), |
| 4915 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), |
| 4916 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), |
| 4917 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), |
| 4918 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), |
| 4919 | BPF_EXIT_INSN(), |
| 4920 | }, |
| 4921 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4922 | .errstr_unpriv = "R0 leaks addr", |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4923 | .result = ACCEPT, |
| 4924 | .result_unpriv = REJECT, |
| 4925 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
| 4926 | }, |
| 4927 | { |
| 4928 | "map element value illegal alu op, 1", |
| 4929 | .insns = { |
| 4930 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4931 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4932 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4933 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4934 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4935 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 4936 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), |
| 4937 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), |
| 4938 | BPF_EXIT_INSN(), |
| 4939 | }, |
| 4940 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4941 | .errstr_unpriv = "R0 bitwise operator &= on pointer", |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4942 | .errstr = "invalid mem access 'inv'", |
| 4943 | .result = REJECT, |
| 4944 | .result_unpriv = REJECT, |
| 4945 | }, |
| 4946 | { |
| 4947 | "map element value illegal alu op, 2", |
| 4948 | .insns = { |
| 4949 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4950 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4951 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4952 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4953 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4954 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 4955 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), |
| 4956 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), |
| 4957 | BPF_EXIT_INSN(), |
| 4958 | }, |
| 4959 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4960 | .errstr_unpriv = "R0 32-bit pointer arithmetic prohibited", |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4961 | .errstr = "invalid mem access 'inv'", |
| 4962 | .result = REJECT, |
| 4963 | .result_unpriv = REJECT, |
| 4964 | }, |
| 4965 | { |
| 4966 | "map element value illegal alu op, 3", |
| 4967 | .insns = { |
| 4968 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4969 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4970 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4971 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4972 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4973 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 4974 | BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), |
| 4975 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), |
| 4976 | BPF_EXIT_INSN(), |
| 4977 | }, |
| 4978 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 4979 | .errstr_unpriv = "R0 pointer arithmetic with /= operator", |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 4980 | .errstr = "invalid mem access 'inv'", |
| 4981 | .result = REJECT, |
| 4982 | .result_unpriv = REJECT, |
| 4983 | }, |
| 4984 | { |
| 4985 | "map element value illegal alu op, 4", |
| 4986 | .insns = { |
| 4987 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 4988 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 4989 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 4990 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 4991 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 4992 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 4993 | BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), |
| 4994 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), |
| 4995 | BPF_EXIT_INSN(), |
| 4996 | }, |
| 4997 | .fixup_map2 = { 3 }, |
| 4998 | .errstr_unpriv = "R0 pointer arithmetic prohibited", |
| 4999 | .errstr = "invalid mem access 'inv'", |
| 5000 | .result = REJECT, |
| 5001 | .result_unpriv = REJECT, |
| 5002 | }, |
| 5003 | { |
| 5004 | "map element value illegal alu op, 5", |
| 5005 | .insns = { |
| 5006 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5007 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5008 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5009 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5010 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5011 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 5012 | BPF_MOV64_IMM(BPF_REG_3, 4096), |
| 5013 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5014 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5015 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), |
| 5016 | BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), |
| 5017 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), |
| 5018 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), |
| 5019 | BPF_EXIT_INSN(), |
| 5020 | }, |
| 5021 | .fixup_map2 = { 3 }, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 5022 | .errstr = "R0 invalid mem access 'inv'", |
| 5023 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 5024 | }, |
| 5025 | { |
| 5026 | "map element value is preserved across register spilling", |
Gianluca Borello | f0318d0 | 2017-01-09 10:19:48 -0800 | [diff] [blame] | 5027 | .insns = { |
| 5028 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5029 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5030 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5031 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5032 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5033 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 5034 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, |
| 5035 | offsetof(struct test_val, foo)), |
| 5036 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), |
| 5037 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5038 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), |
| 5039 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), |
| 5040 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), |
| 5041 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), |
| 5042 | BPF_EXIT_INSN(), |
| 5043 | }, |
| 5044 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5045 | .errstr_unpriv = "R0 leaks addr", |
Gianluca Borello | f0318d0 | 2017-01-09 10:19:48 -0800 | [diff] [blame] | 5046 | .result = ACCEPT, |
| 5047 | .result_unpriv = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 5048 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Gianluca Borello | f0318d0 | 2017-01-09 10:19:48 -0800 | [diff] [blame] | 5049 | }, |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5050 | { |
| 5051 | "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", |
| 5052 | .insns = { |
| 5053 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5054 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5055 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5056 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), |
| 5057 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), |
| 5058 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), |
| 5059 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), |
| 5060 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), |
| 5061 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), |
| 5062 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), |
| 5063 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 5064 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5065 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5066 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5067 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), |
| 5068 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5069 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), |
| 5070 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5071 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5072 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5073 | BPF_EXIT_INSN(), |
| 5074 | }, |
| 5075 | .result = ACCEPT, |
| 5076 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5077 | }, |
| 5078 | { |
| 5079 | "helper access to variable memory: stack, bitwise AND, zero included", |
| 5080 | .insns = { |
| 5081 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5082 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5083 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5084 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5085 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5086 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), |
| 5087 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5088 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5089 | BPF_EXIT_INSN(), |
| 5090 | }, |
| 5091 | .errstr = "invalid stack type R1 off=-64 access_size=0", |
| 5092 | .result = REJECT, |
| 5093 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5094 | }, |
| 5095 | { |
| 5096 | "helper access to variable memory: stack, bitwise AND + JMP, wrong max", |
| 5097 | .insns = { |
| 5098 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5099 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5100 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5101 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5102 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5103 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), |
| 5104 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5105 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), |
| 5106 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5107 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5108 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5109 | BPF_EXIT_INSN(), |
| 5110 | }, |
| 5111 | .errstr = "invalid stack type R1 off=-64 access_size=65", |
| 5112 | .result = REJECT, |
| 5113 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5114 | }, |
| 5115 | { |
| 5116 | "helper access to variable memory: stack, JMP, correct bounds", |
| 5117 | .insns = { |
| 5118 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5119 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5120 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5121 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), |
| 5122 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), |
| 5123 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), |
| 5124 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), |
| 5125 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), |
| 5126 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), |
| 5127 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), |
| 5128 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 5129 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5130 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5131 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5132 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), |
| 5133 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5134 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), |
| 5135 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5136 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5137 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5138 | BPF_EXIT_INSN(), |
| 5139 | }, |
| 5140 | .result = ACCEPT, |
| 5141 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5142 | }, |
| 5143 | { |
| 5144 | "helper access to variable memory: stack, JMP (signed), correct bounds", |
| 5145 | .insns = { |
| 5146 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5147 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5148 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5149 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), |
| 5150 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), |
| 5151 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), |
| 5152 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), |
| 5153 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), |
| 5154 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), |
| 5155 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), |
| 5156 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 5157 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5158 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5159 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5160 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), |
| 5161 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5162 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), |
| 5163 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5164 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5165 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5166 | BPF_EXIT_INSN(), |
| 5167 | }, |
| 5168 | .result = ACCEPT, |
| 5169 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5170 | }, |
| 5171 | { |
| 5172 | "helper access to variable memory: stack, JMP, bounds + offset", |
| 5173 | .insns = { |
| 5174 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5175 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5176 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5177 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5178 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5179 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), |
| 5180 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5181 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), |
| 5182 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), |
| 5183 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5184 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5185 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5186 | BPF_EXIT_INSN(), |
| 5187 | }, |
| 5188 | .errstr = "invalid stack type R1 off=-64 access_size=65", |
| 5189 | .result = REJECT, |
| 5190 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5191 | }, |
| 5192 | { |
| 5193 | "helper access to variable memory: stack, JMP, wrong max", |
| 5194 | .insns = { |
| 5195 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5196 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5197 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5198 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5199 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5200 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), |
| 5201 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5202 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), |
| 5203 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5204 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5205 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5206 | BPF_EXIT_INSN(), |
| 5207 | }, |
| 5208 | .errstr = "invalid stack type R1 off=-64 access_size=65", |
| 5209 | .result = REJECT, |
| 5210 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5211 | }, |
| 5212 | { |
| 5213 | "helper access to variable memory: stack, JMP, no max check", |
| 5214 | .insns = { |
| 5215 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5216 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5217 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5218 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5219 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5220 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5221 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), |
| 5222 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5223 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5224 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5225 | BPF_EXIT_INSN(), |
| 5226 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5227 | /* because max wasn't checked, signed min is negative */ |
| 5228 | .errstr = "R2 min value is negative, either use unsigned or 'var &= const'", |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5229 | .result = REJECT, |
| 5230 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5231 | }, |
| 5232 | { |
| 5233 | "helper access to variable memory: stack, JMP, no min check", |
| 5234 | .insns = { |
| 5235 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5236 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5237 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5238 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5239 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5240 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), |
| 5241 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5242 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5243 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5244 | BPF_EXIT_INSN(), |
| 5245 | }, |
| 5246 | .errstr = "invalid stack type R1 off=-64 access_size=0", |
| 5247 | .result = REJECT, |
| 5248 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5249 | }, |
| 5250 | { |
| 5251 | "helper access to variable memory: stack, JMP (signed), no min check", |
| 5252 | .insns = { |
| 5253 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5254 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5255 | BPF_MOV64_IMM(BPF_REG_2, 16), |
| 5256 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), |
| 5257 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), |
| 5258 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), |
| 5259 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5260 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5261 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5262 | BPF_EXIT_INSN(), |
| 5263 | }, |
| 5264 | .errstr = "R2 min value is negative", |
| 5265 | .result = REJECT, |
| 5266 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5267 | }, |
| 5268 | { |
| 5269 | "helper access to variable memory: map, JMP, correct bounds", |
| 5270 | .insns = { |
| 5271 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5272 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5273 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5274 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5275 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5276 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
| 5277 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5278 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), |
| 5279 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5280 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
| 5281 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, |
| 5282 | sizeof(struct test_val), 4), |
| 5283 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | a150213 | 2017-07-21 00:00:23 +0200 | [diff] [blame] | 5284 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5285 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5286 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5287 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5288 | BPF_EXIT_INSN(), |
| 5289 | }, |
| 5290 | .fixup_map2 = { 3 }, |
| 5291 | .result = ACCEPT, |
| 5292 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5293 | }, |
| 5294 | { |
| 5295 | "helper access to variable memory: map, JMP, wrong max", |
| 5296 | .insns = { |
| 5297 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5298 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5299 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5300 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5301 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5302 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
| 5303 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5304 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), |
| 5305 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5306 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
| 5307 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, |
| 5308 | sizeof(struct test_val) + 1, 4), |
| 5309 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | a150213 | 2017-07-21 00:00:23 +0200 | [diff] [blame] | 5310 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5311 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5312 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5313 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5314 | BPF_EXIT_INSN(), |
| 5315 | }, |
| 5316 | .fixup_map2 = { 3 }, |
| 5317 | .errstr = "invalid access to map value, value_size=48 off=0 size=49", |
| 5318 | .result = REJECT, |
| 5319 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5320 | }, |
| 5321 | { |
| 5322 | "helper access to variable memory: map adjusted, JMP, correct bounds", |
| 5323 | .insns = { |
| 5324 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5325 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5326 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5327 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5328 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5329 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), |
| 5330 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5331 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), |
| 5332 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), |
| 5333 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5334 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
| 5335 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, |
| 5336 | sizeof(struct test_val) - 20, 4), |
| 5337 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | a150213 | 2017-07-21 00:00:23 +0200 | [diff] [blame] | 5338 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5339 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5340 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5341 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5342 | BPF_EXIT_INSN(), |
| 5343 | }, |
| 5344 | .fixup_map2 = { 3 }, |
| 5345 | .result = ACCEPT, |
| 5346 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5347 | }, |
| 5348 | { |
| 5349 | "helper access to variable memory: map adjusted, JMP, wrong max", |
| 5350 | .insns = { |
| 5351 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5352 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5353 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), |
| 5354 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5355 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), |
| 5356 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), |
| 5357 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5358 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), |
| 5359 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), |
| 5360 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5361 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
| 5362 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, |
| 5363 | sizeof(struct test_val) - 19, 4), |
| 5364 | BPF_MOV64_IMM(BPF_REG_4, 0), |
Daniel Borkmann | a150213 | 2017-07-21 00:00:23 +0200 | [diff] [blame] | 5365 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5366 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5367 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5368 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5369 | BPF_EXIT_INSN(), |
| 5370 | }, |
| 5371 | .fixup_map2 = { 3 }, |
| 5372 | .errstr = "R1 min value is outside of the array range", |
| 5373 | .result = REJECT, |
| 5374 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5375 | }, |
| 5376 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5377 | "helper access to variable memory: size = 0 allowed on NULL", |
| 5378 | .insns = { |
| 5379 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 5380 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 5381 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5382 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5383 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 5384 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), |
| 5385 | BPF_EXIT_INSN(), |
| 5386 | }, |
| 5387 | .result = ACCEPT, |
| 5388 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 5389 | }, |
| 5390 | { |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5391 | "helper access to variable memory: size > 0 not allowed on NULL", |
| 5392 | .insns = { |
| 5393 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 5394 | BPF_MOV64_IMM(BPF_REG_2, 0), |
Daniel Borkmann | 3fadc80 | 2017-01-24 01:06:30 +0100 | [diff] [blame] | 5395 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5396 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5397 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), |
| 5398 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5399 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5400 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 5401 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), |
| 5402 | BPF_EXIT_INSN(), |
| 5403 | }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5404 | .errstr = "R1 type=inv expected=fp", |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5405 | .result = REJECT, |
| 5406 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 5407 | }, |
| 5408 | { |
| 5409 | "helper access to variable memory: size = 0 not allowed on != NULL", |
| 5410 | .insns = { |
| 5411 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5412 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 5413 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 5414 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), |
| 5415 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), |
| 5416 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5417 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5418 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 5419 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), |
| 5420 | BPF_EXIT_INSN(), |
| 5421 | }, |
| 5422 | .errstr = "invalid stack type R1 off=-8 access_size=0", |
| 5423 | .result = REJECT, |
| 5424 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 5425 | }, |
| 5426 | { |
| 5427 | "helper access to variable memory: 8 bytes leak", |
| 5428 | .insns = { |
| 5429 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5430 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5431 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5432 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), |
| 5433 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), |
| 5434 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), |
| 5435 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), |
| 5436 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), |
| 5437 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), |
| 5438 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 5439 | BPF_MOV64_IMM(BPF_REG_2, 0), |
Daniel Borkmann | 3fadc80 | 2017-01-24 01:06:30 +0100 | [diff] [blame] | 5440 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
| 5441 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), |
Gianluca Borello | 06c1c04 | 2017-01-09 10:19:49 -0800 | [diff] [blame] | 5442 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), |
| 5443 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), |
| 5444 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5445 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5446 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5447 | BPF_EXIT_INSN(), |
| 5448 | }, |
| 5449 | .errstr = "invalid indirect read from stack off -64+32 size 64", |
| 5450 | .result = REJECT, |
| 5451 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5452 | }, |
| 5453 | { |
| 5454 | "helper access to variable memory: 8 bytes no leak (init memory)", |
| 5455 | .insns = { |
| 5456 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 5457 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5458 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5459 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), |
| 5460 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), |
| 5461 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), |
| 5462 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), |
| 5463 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), |
| 5464 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), |
| 5465 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), |
| 5466 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), |
| 5467 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), |
| 5468 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 5469 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), |
| 5470 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), |
| 5471 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5472 | BPF_EMIT_CALL(BPF_FUNC_probe_read), |
| 5473 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5474 | BPF_EXIT_INSN(), |
| 5475 | }, |
| 5476 | .result = ACCEPT, |
| 5477 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, |
| 5478 | }, |
Josef Bacik | 29200c1 | 2017-02-03 16:25:23 -0500 | [diff] [blame] | 5479 | { |
| 5480 | "invalid and of negative number", |
| 5481 | .insns = { |
| 5482 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5483 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5484 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5485 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5486 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5487 | BPF_FUNC_map_lookup_elem), |
| 5488 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5489 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), |
Josef Bacik | 29200c1 | 2017-02-03 16:25:23 -0500 | [diff] [blame] | 5490 | BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), |
| 5491 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), |
| 5492 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 5493 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
| 5494 | offsetof(struct test_val, foo)), |
| 5495 | BPF_EXIT_INSN(), |
| 5496 | }, |
| 5497 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5498 | .errstr = "R0 max value is outside of the array range", |
Josef Bacik | 29200c1 | 2017-02-03 16:25:23 -0500 | [diff] [blame] | 5499 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 5500 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Josef Bacik | 29200c1 | 2017-02-03 16:25:23 -0500 | [diff] [blame] | 5501 | }, |
| 5502 | { |
| 5503 | "invalid range check", |
| 5504 | .insns = { |
| 5505 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5506 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5507 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5508 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5509 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5510 | BPF_FUNC_map_lookup_elem), |
| 5511 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), |
| 5512 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), |
| 5513 | BPF_MOV64_IMM(BPF_REG_9, 1), |
| 5514 | BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), |
| 5515 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), |
| 5516 | BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), |
| 5517 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), |
| 5518 | BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), |
| 5519 | BPF_MOV32_IMM(BPF_REG_3, 1), |
| 5520 | BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), |
| 5521 | BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), |
| 5522 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| 5523 | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), |
| 5524 | BPF_MOV64_REG(BPF_REG_0, 0), |
| 5525 | BPF_EXIT_INSN(), |
| 5526 | }, |
| 5527 | .fixup_map2 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5528 | .errstr = "R0 max value is outside of the array range", |
Josef Bacik | 29200c1 | 2017-02-03 16:25:23 -0500 | [diff] [blame] | 5529 | .result = REJECT, |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 5530 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 5531 | }, |
| 5532 | { |
| 5533 | "map in map access", |
| 5534 | .insns = { |
| 5535 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5536 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5537 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5538 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5539 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5540 | BPF_FUNC_map_lookup_elem), |
| 5541 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
| 5542 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5543 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5544 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5545 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5546 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5547 | BPF_FUNC_map_lookup_elem), |
| 5548 | BPF_MOV64_REG(BPF_REG_0, 0), |
| 5549 | BPF_EXIT_INSN(), |
| 5550 | }, |
| 5551 | .fixup_map_in_map = { 3 }, |
| 5552 | .result = ACCEPT, |
| 5553 | }, |
| 5554 | { |
| 5555 | "invalid inner map pointer", |
| 5556 | .insns = { |
| 5557 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5558 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5559 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5560 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5561 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5562 | BPF_FUNC_map_lookup_elem), |
| 5563 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 5564 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5565 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5566 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5567 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5568 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 5569 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5570 | BPF_FUNC_map_lookup_elem), |
| 5571 | BPF_MOV64_REG(BPF_REG_0, 0), |
| 5572 | BPF_EXIT_INSN(), |
| 5573 | }, |
| 5574 | .fixup_map_in_map = { 3 }, |
| 5575 | .errstr = "R1 type=inv expected=map_ptr", |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5576 | .errstr_unpriv = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited", |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 5577 | .result = REJECT, |
| 5578 | }, |
| 5579 | { |
| 5580 | "forgot null checking on the inner map pointer", |
| 5581 | .insns = { |
| 5582 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5583 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5584 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5585 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5586 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5587 | BPF_FUNC_map_lookup_elem), |
| 5588 | BPF_ST_MEM(0, BPF_REG_10, -4, 0), |
| 5589 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5590 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), |
| 5591 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 5592 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5593 | BPF_FUNC_map_lookup_elem), |
| 5594 | BPF_MOV64_REG(BPF_REG_0, 0), |
| 5595 | BPF_EXIT_INSN(), |
| 5596 | }, |
| 5597 | .fixup_map_in_map = { 3 }, |
| 5598 | .errstr = "R1 type=map_value_or_null expected=map_ptr", |
| 5599 | .result = REJECT, |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 5600 | }, |
| 5601 | { |
| 5602 | "ld_abs: check calling conv, r1", |
| 5603 | .insns = { |
| 5604 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5605 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 5606 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5607 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), |
| 5608 | BPF_EXIT_INSN(), |
| 5609 | }, |
| 5610 | .errstr = "R1 !read_ok", |
| 5611 | .result = REJECT, |
| 5612 | }, |
| 5613 | { |
| 5614 | "ld_abs: check calling conv, r2", |
| 5615 | .insns = { |
| 5616 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5617 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 5618 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5619 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 5620 | BPF_EXIT_INSN(), |
| 5621 | }, |
| 5622 | .errstr = "R2 !read_ok", |
| 5623 | .result = REJECT, |
| 5624 | }, |
| 5625 | { |
| 5626 | "ld_abs: check calling conv, r3", |
| 5627 | .insns = { |
| 5628 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5629 | BPF_MOV64_IMM(BPF_REG_3, 0), |
| 5630 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5631 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), |
| 5632 | BPF_EXIT_INSN(), |
| 5633 | }, |
| 5634 | .errstr = "R3 !read_ok", |
| 5635 | .result = REJECT, |
| 5636 | }, |
| 5637 | { |
| 5638 | "ld_abs: check calling conv, r4", |
| 5639 | .insns = { |
| 5640 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5641 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 5642 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5643 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), |
| 5644 | BPF_EXIT_INSN(), |
| 5645 | }, |
| 5646 | .errstr = "R4 !read_ok", |
| 5647 | .result = REJECT, |
| 5648 | }, |
| 5649 | { |
| 5650 | "ld_abs: check calling conv, r5", |
| 5651 | .insns = { |
| 5652 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5653 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 5654 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5655 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), |
| 5656 | BPF_EXIT_INSN(), |
| 5657 | }, |
| 5658 | .errstr = "R5 !read_ok", |
| 5659 | .result = REJECT, |
| 5660 | }, |
| 5661 | { |
| 5662 | "ld_abs: check calling conv, r7", |
| 5663 | .insns = { |
| 5664 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5665 | BPF_MOV64_IMM(BPF_REG_7, 0), |
| 5666 | BPF_LD_ABS(BPF_W, -0x200000), |
| 5667 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), |
| 5668 | BPF_EXIT_INSN(), |
| 5669 | }, |
| 5670 | .result = ACCEPT, |
| 5671 | }, |
| 5672 | { |
| 5673 | "ld_ind: check calling conv, r1", |
| 5674 | .insns = { |
| 5675 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5676 | BPF_MOV64_IMM(BPF_REG_1, 1), |
| 5677 | BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000), |
| 5678 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), |
| 5679 | BPF_EXIT_INSN(), |
| 5680 | }, |
| 5681 | .errstr = "R1 !read_ok", |
| 5682 | .result = REJECT, |
| 5683 | }, |
| 5684 | { |
| 5685 | "ld_ind: check calling conv, r2", |
| 5686 | .insns = { |
| 5687 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5688 | BPF_MOV64_IMM(BPF_REG_2, 1), |
| 5689 | BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000), |
| 5690 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 5691 | BPF_EXIT_INSN(), |
| 5692 | }, |
| 5693 | .errstr = "R2 !read_ok", |
| 5694 | .result = REJECT, |
| 5695 | }, |
| 5696 | { |
| 5697 | "ld_ind: check calling conv, r3", |
| 5698 | .insns = { |
| 5699 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5700 | BPF_MOV64_IMM(BPF_REG_3, 1), |
| 5701 | BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000), |
| 5702 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), |
| 5703 | BPF_EXIT_INSN(), |
| 5704 | }, |
| 5705 | .errstr = "R3 !read_ok", |
| 5706 | .result = REJECT, |
| 5707 | }, |
| 5708 | { |
| 5709 | "ld_ind: check calling conv, r4", |
| 5710 | .insns = { |
| 5711 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5712 | BPF_MOV64_IMM(BPF_REG_4, 1), |
| 5713 | BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000), |
| 5714 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), |
| 5715 | BPF_EXIT_INSN(), |
| 5716 | }, |
| 5717 | .errstr = "R4 !read_ok", |
| 5718 | .result = REJECT, |
| 5719 | }, |
| 5720 | { |
| 5721 | "ld_ind: check calling conv, r5", |
| 5722 | .insns = { |
| 5723 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5724 | BPF_MOV64_IMM(BPF_REG_5, 1), |
| 5725 | BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000), |
| 5726 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), |
| 5727 | BPF_EXIT_INSN(), |
| 5728 | }, |
| 5729 | .errstr = "R5 !read_ok", |
| 5730 | .result = REJECT, |
| 5731 | }, |
| 5732 | { |
| 5733 | "ld_ind: check calling conv, r7", |
| 5734 | .insns = { |
| 5735 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), |
| 5736 | BPF_MOV64_IMM(BPF_REG_7, 1), |
| 5737 | BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000), |
| 5738 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), |
| 5739 | BPF_EXIT_INSN(), |
| 5740 | }, |
| 5741 | .result = ACCEPT, |
| 5742 | }, |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5743 | { |
| 5744 | "check bpf_perf_event_data->sample_period byte load permitted", |
| 5745 | .insns = { |
| 5746 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 5747 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5748 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 5749 | offsetof(struct bpf_perf_event_data, sample_period)), |
| 5750 | #else |
| 5751 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, |
| 5752 | offsetof(struct bpf_perf_event_data, sample_period) + 7), |
| 5753 | #endif |
| 5754 | BPF_EXIT_INSN(), |
| 5755 | }, |
| 5756 | .result = ACCEPT, |
| 5757 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, |
| 5758 | }, |
| 5759 | { |
| 5760 | "check bpf_perf_event_data->sample_period half load permitted", |
| 5761 | .insns = { |
| 5762 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 5763 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5764 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5765 | offsetof(struct bpf_perf_event_data, sample_period)), |
| 5766 | #else |
| 5767 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5768 | offsetof(struct bpf_perf_event_data, sample_period) + 6), |
| 5769 | #endif |
| 5770 | BPF_EXIT_INSN(), |
| 5771 | }, |
| 5772 | .result = ACCEPT, |
| 5773 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, |
| 5774 | }, |
| 5775 | { |
| 5776 | "check bpf_perf_event_data->sample_period word load permitted", |
| 5777 | .insns = { |
| 5778 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 5779 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5780 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 5781 | offsetof(struct bpf_perf_event_data, sample_period)), |
| 5782 | #else |
| 5783 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 5784 | offsetof(struct bpf_perf_event_data, sample_period) + 4), |
| 5785 | #endif |
| 5786 | BPF_EXIT_INSN(), |
| 5787 | }, |
| 5788 | .result = ACCEPT, |
| 5789 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, |
| 5790 | }, |
| 5791 | { |
| 5792 | "check bpf_perf_event_data->sample_period dword load permitted", |
| 5793 | .insns = { |
| 5794 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5795 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, |
| 5796 | offsetof(struct bpf_perf_event_data, sample_period)), |
| 5797 | BPF_EXIT_INSN(), |
| 5798 | }, |
| 5799 | .result = ACCEPT, |
| 5800 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, |
| 5801 | }, |
| 5802 | { |
| 5803 | "check skb->data half load not permitted", |
| 5804 | .insns = { |
| 5805 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 5806 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5807 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5808 | offsetof(struct __sk_buff, data)), |
| 5809 | #else |
| 5810 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5811 | offsetof(struct __sk_buff, data) + 2), |
| 5812 | #endif |
| 5813 | BPF_EXIT_INSN(), |
| 5814 | }, |
| 5815 | .result = REJECT, |
| 5816 | .errstr = "invalid bpf_context access", |
| 5817 | }, |
| 5818 | { |
| 5819 | "check skb->tc_classid half load not permitted for lwt prog", |
| 5820 | .insns = { |
| 5821 | BPF_MOV64_IMM(BPF_REG_0, 0), |
Daniel Borkmann | 2c46062 | 2017-08-04 22:24:41 +0200 | [diff] [blame] | 5822 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
Yonghong Song | 18f3d6b | 2017-06-13 15:52:14 -0700 | [diff] [blame] | 5823 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5824 | offsetof(struct __sk_buff, tc_classid)), |
| 5825 | #else |
| 5826 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, |
| 5827 | offsetof(struct __sk_buff, tc_classid) + 2), |
| 5828 | #endif |
| 5829 | BPF_EXIT_INSN(), |
| 5830 | }, |
| 5831 | .result = REJECT, |
| 5832 | .errstr = "invalid bpf_context access", |
| 5833 | .prog_type = BPF_PROG_TYPE_LWT_IN, |
| 5834 | }, |
Edward Cree | b712296a | 2017-07-21 00:00:24 +0200 | [diff] [blame] | 5835 | { |
| 5836 | "bounds checks mixing signed and unsigned, positive bounds", |
| 5837 | .insns = { |
| 5838 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5839 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5840 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5841 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5842 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5843 | BPF_FUNC_map_lookup_elem), |
| 5844 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 5845 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5846 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5847 | BPF_MOV64_IMM(BPF_REG_2, 2), |
| 5848 | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3), |
| 5849 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2), |
| 5850 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 5851 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 5852 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5853 | BPF_EXIT_INSN(), |
| 5854 | }, |
| 5855 | .fixup_map1 = { 3 }, |
Edward Cree | b712296a | 2017-07-21 00:00:24 +0200 | [diff] [blame] | 5856 | .errstr = "R0 min value is negative", |
| 5857 | .result = REJECT, |
Edward Cree | b712296a | 2017-07-21 00:00:24 +0200 | [diff] [blame] | 5858 | }, |
| 5859 | { |
| 5860 | "bounds checks mixing signed and unsigned", |
| 5861 | .insns = { |
| 5862 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5863 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5864 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5865 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5866 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5867 | BPF_FUNC_map_lookup_elem), |
| 5868 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 5869 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5870 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5871 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 5872 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), |
| 5873 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 5874 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 5875 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 5876 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5877 | BPF_EXIT_INSN(), |
| 5878 | }, |
| 5879 | .fixup_map1 = { 3 }, |
Edward Cree | b712296a | 2017-07-21 00:00:24 +0200 | [diff] [blame] | 5880 | .errstr = "R0 min value is negative", |
| 5881 | .result = REJECT, |
Edward Cree | b712296a | 2017-07-21 00:00:24 +0200 | [diff] [blame] | 5882 | }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5883 | { |
| 5884 | "bounds checks mixing signed and unsigned, variant 2", |
| 5885 | .insns = { |
| 5886 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5887 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5888 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5889 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5890 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5891 | BPF_FUNC_map_lookup_elem), |
| 5892 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 5893 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5894 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5895 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 5896 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), |
| 5897 | BPF_MOV64_IMM(BPF_REG_8, 0), |
| 5898 | BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1), |
| 5899 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), |
| 5900 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), |
| 5901 | BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), |
| 5902 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5903 | BPF_EXIT_INSN(), |
| 5904 | }, |
| 5905 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5906 | .errstr = "R8 invalid mem access 'inv'", |
| 5907 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5908 | }, |
| 5909 | { |
| 5910 | "bounds checks mixing signed and unsigned, variant 3", |
| 5911 | .insns = { |
| 5912 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5913 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5914 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5915 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5916 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5917 | BPF_FUNC_map_lookup_elem), |
| 5918 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), |
| 5919 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5920 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5921 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 5922 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4), |
| 5923 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), |
| 5924 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), |
| 5925 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), |
| 5926 | BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), |
| 5927 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5928 | BPF_EXIT_INSN(), |
| 5929 | }, |
| 5930 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5931 | .errstr = "R8 invalid mem access 'inv'", |
| 5932 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5933 | }, |
| 5934 | { |
| 5935 | "bounds checks mixing signed and unsigned, variant 4", |
| 5936 | .insns = { |
| 5937 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5938 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5939 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5940 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5941 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5942 | BPF_FUNC_map_lookup_elem), |
| 5943 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 5944 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5945 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5946 | BPF_MOV64_IMM(BPF_REG_2, 1), |
| 5947 | BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2), |
| 5948 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 5949 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 5950 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 5951 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5952 | BPF_EXIT_INSN(), |
| 5953 | }, |
| 5954 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5955 | .result = ACCEPT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5956 | }, |
| 5957 | { |
| 5958 | "bounds checks mixing signed and unsigned, variant 5", |
| 5959 | .insns = { |
| 5960 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 5961 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 5962 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 5963 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 5964 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5965 | BPF_FUNC_map_lookup_elem), |
| 5966 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 5967 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5968 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 5969 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 5970 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), |
| 5971 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4), |
| 5972 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4), |
| 5973 | BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), |
| 5974 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 5975 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5976 | BPF_EXIT_INSN(), |
| 5977 | }, |
| 5978 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 5979 | .errstr = "R0 min value is negative", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5980 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 5981 | }, |
| 5982 | { |
| 5983 | "bounds checks mixing signed and unsigned, variant 6", |
| 5984 | .insns = { |
| 5985 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 5986 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_10), |
| 5987 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512), |
| 5988 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 5989 | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16), |
| 5990 | BPF_MOV64_IMM(BPF_REG_6, -1), |
| 5991 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5), |
| 5992 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4), |
| 5993 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1), |
| 5994 | BPF_MOV64_IMM(BPF_REG_5, 0), |
| 5995 | BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0), |
| 5996 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 5997 | BPF_FUNC_skb_load_bytes), |
| 5998 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 5999 | BPF_EXIT_INSN(), |
| 6000 | }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6001 | .errstr = "R4 min value is negative, either use unsigned", |
| 6002 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6003 | }, |
| 6004 | { |
| 6005 | "bounds checks mixing signed and unsigned, variant 7", |
| 6006 | .insns = { |
| 6007 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6008 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6009 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6010 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6011 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6012 | BPF_FUNC_map_lookup_elem), |
| 6013 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
| 6014 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6015 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6016 | BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024), |
| 6017 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), |
| 6018 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6019 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6020 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6021 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6022 | BPF_EXIT_INSN(), |
| 6023 | }, |
| 6024 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6025 | .result = ACCEPT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6026 | }, |
| 6027 | { |
| 6028 | "bounds checks mixing signed and unsigned, variant 8", |
| 6029 | .insns = { |
| 6030 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6031 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6032 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6033 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6034 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6035 | BPF_FUNC_map_lookup_elem), |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6036 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 6037 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6038 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6039 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 6040 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), |
| 6041 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6042 | BPF_EXIT_INSN(), |
| 6043 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6044 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6045 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6046 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6047 | BPF_EXIT_INSN(), |
| 6048 | }, |
| 6049 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6050 | .errstr = "R0 min value is negative", |
| 6051 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6052 | }, |
| 6053 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6054 | "bounds checks mixing signed and unsigned, variant 9", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6055 | .insns = { |
| 6056 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6057 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6058 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6059 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6060 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6061 | BPF_FUNC_map_lookup_elem), |
| 6062 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
| 6063 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6064 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6065 | BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL), |
| 6066 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), |
| 6067 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6068 | BPF_EXIT_INSN(), |
| 6069 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6070 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6071 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6072 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6073 | BPF_EXIT_INSN(), |
| 6074 | }, |
| 6075 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6076 | .result = ACCEPT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6077 | }, |
| 6078 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6079 | "bounds checks mixing signed and unsigned, variant 10", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6080 | .insns = { |
| 6081 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6082 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6083 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6084 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6085 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6086 | BPF_FUNC_map_lookup_elem), |
| 6087 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 6088 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6089 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6090 | BPF_MOV64_IMM(BPF_REG_2, 0), |
| 6091 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), |
| 6092 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6093 | BPF_EXIT_INSN(), |
| 6094 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6095 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6096 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6097 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6098 | BPF_EXIT_INSN(), |
| 6099 | }, |
| 6100 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6101 | .errstr = "R0 min value is negative", |
| 6102 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6103 | }, |
| 6104 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6105 | "bounds checks mixing signed and unsigned, variant 11", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6106 | .insns = { |
| 6107 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6108 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6109 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6110 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6111 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6112 | BPF_FUNC_map_lookup_elem), |
| 6113 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 6114 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6115 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6116 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 6117 | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), |
| 6118 | /* Dead branch. */ |
| 6119 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6120 | BPF_EXIT_INSN(), |
| 6121 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6122 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6123 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6124 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6125 | BPF_EXIT_INSN(), |
| 6126 | }, |
| 6127 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6128 | .errstr = "R0 min value is negative", |
| 6129 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6130 | }, |
| 6131 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6132 | "bounds checks mixing signed and unsigned, variant 12", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6133 | .insns = { |
| 6134 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6135 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6136 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6137 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6138 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6139 | BPF_FUNC_map_lookup_elem), |
| 6140 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 6141 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6142 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6143 | BPF_MOV64_IMM(BPF_REG_2, -6), |
| 6144 | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), |
| 6145 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6146 | BPF_EXIT_INSN(), |
| 6147 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6148 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6149 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6150 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6151 | BPF_EXIT_INSN(), |
| 6152 | }, |
| 6153 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6154 | .errstr = "R0 min value is negative", |
| 6155 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6156 | }, |
| 6157 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6158 | "bounds checks mixing signed and unsigned, variant 13", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6159 | .insns = { |
| 6160 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6161 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6162 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6163 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6164 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6165 | BPF_FUNC_map_lookup_elem), |
| 6166 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), |
| 6167 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6168 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6169 | BPF_MOV64_IMM(BPF_REG_2, 2), |
| 6170 | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), |
| 6171 | BPF_MOV64_IMM(BPF_REG_7, 1), |
| 6172 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2), |
| 6173 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6174 | BPF_EXIT_INSN(), |
| 6175 | BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1), |
| 6176 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2), |
| 6177 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7), |
| 6178 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6179 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6180 | BPF_EXIT_INSN(), |
| 6181 | }, |
| 6182 | .fixup_map1 = { 3 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6183 | .errstr = "R0 min value is negative", |
| 6184 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6185 | }, |
| 6186 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6187 | "bounds checks mixing signed and unsigned, variant 14", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6188 | .insns = { |
| 6189 | BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1, |
| 6190 | offsetof(struct __sk_buff, mark)), |
| 6191 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6192 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6193 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6194 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6195 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6196 | BPF_FUNC_map_lookup_elem), |
| 6197 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), |
| 6198 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6199 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6200 | BPF_MOV64_IMM(BPF_REG_2, -1), |
| 6201 | BPF_MOV64_IMM(BPF_REG_8, 2), |
| 6202 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6), |
| 6203 | BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3), |
| 6204 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), |
| 6205 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6206 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6207 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6208 | BPF_EXIT_INSN(), |
| 6209 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3), |
| 6210 | BPF_JMP_IMM(BPF_JA, 0, 0, -7), |
| 6211 | }, |
| 6212 | .fixup_map1 = { 4 }, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6213 | .errstr = "R0 min value is negative", |
| 6214 | .result = REJECT, |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6215 | }, |
| 6216 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6217 | "bounds checks mixing signed and unsigned, variant 15", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6218 | .insns = { |
| 6219 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6220 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6221 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6222 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6223 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6224 | BPF_FUNC_map_lookup_elem), |
| 6225 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
| 6226 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), |
| 6227 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), |
| 6228 | BPF_MOV64_IMM(BPF_REG_2, -6), |
| 6229 | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), |
| 6230 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6231 | BPF_EXIT_INSN(), |
| 6232 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6233 | BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2), |
| 6234 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6235 | BPF_EXIT_INSN(), |
| 6236 | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), |
| 6237 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6238 | BPF_EXIT_INSN(), |
| 6239 | }, |
| 6240 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6241 | .errstr_unpriv = "R0 pointer comparison prohibited", |
Daniel Borkmann | 8641250 | 2017-07-21 00:00:25 +0200 | [diff] [blame] | 6242 | .errstr = "R0 min value is negative", |
| 6243 | .result = REJECT, |
| 6244 | .result_unpriv = REJECT, |
| 6245 | }, |
Edward Cree | 545722c | 2017-07-21 14:36:57 +0100 | [diff] [blame] | 6246 | { |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6247 | "subtraction bounds (map value) variant 1", |
Edward Cree | 545722c | 2017-07-21 14:36:57 +0100 | [diff] [blame] | 6248 | .insns = { |
| 6249 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6250 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6251 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6252 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6253 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6254 | BPF_FUNC_map_lookup_elem), |
| 6255 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
| 6256 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), |
| 6257 | BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7), |
| 6258 | BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), |
| 6259 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5), |
| 6260 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), |
| 6261 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56), |
| 6262 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6263 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), |
| 6264 | BPF_EXIT_INSN(), |
| 6265 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6266 | BPF_EXIT_INSN(), |
| 6267 | }, |
| 6268 | .fixup_map1 = { 3 }, |
Edward Cree | f65b184 | 2017-08-07 15:27:12 +0100 | [diff] [blame] | 6269 | .errstr = "R0 max value is outside of the array range", |
| 6270 | .result = REJECT, |
| 6271 | }, |
| 6272 | { |
| 6273 | "subtraction bounds (map value) variant 2", |
| 6274 | .insns = { |
| 6275 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6276 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 6277 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 6278 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 6279 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
| 6280 | BPF_FUNC_map_lookup_elem), |
| 6281 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), |
| 6282 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), |
| 6283 | BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6), |
| 6284 | BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), |
| 6285 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4), |
| 6286 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), |
| 6287 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), |
| 6288 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), |
| 6289 | BPF_EXIT_INSN(), |
| 6290 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 6291 | BPF_EXIT_INSN(), |
| 6292 | }, |
| 6293 | .fixup_map1 = { 3 }, |
Edward Cree | 545722c | 2017-07-21 14:36:57 +0100 | [diff] [blame] | 6294 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
| 6295 | .result = REJECT, |
Edward Cree | 545722c | 2017-07-21 14:36:57 +0100 | [diff] [blame] | 6296 | }, |
Edward Cree | 69c4e8a | 2017-08-07 15:29:51 +0100 | [diff] [blame] | 6297 | { |
| 6298 | "variable-offset ctx access", |
| 6299 | .insns = { |
| 6300 | /* Get an unknown value */ |
| 6301 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), |
| 6302 | /* Make it small and 4-byte aligned */ |
| 6303 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), |
| 6304 | /* add it to skb. We now have either &skb->len or |
| 6305 | * &skb->pkt_type, but we don't know which |
| 6306 | */ |
| 6307 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), |
| 6308 | /* dereference it */ |
| 6309 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0), |
| 6310 | BPF_EXIT_INSN(), |
| 6311 | }, |
| 6312 | .errstr = "variable ctx access var_off=(0x0; 0x4)", |
| 6313 | .result = REJECT, |
| 6314 | .prog_type = BPF_PROG_TYPE_LWT_IN, |
| 6315 | }, |
| 6316 | { |
| 6317 | "variable-offset stack access", |
| 6318 | .insns = { |
| 6319 | /* Fill the top 8 bytes of the stack */ |
| 6320 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 6321 | /* Get an unknown value */ |
| 6322 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), |
| 6323 | /* Make it small and 4-byte aligned */ |
| 6324 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), |
| 6325 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8), |
| 6326 | /* add it to fp. We now have either fp-4 or fp-8, but |
| 6327 | * we don't know which |
| 6328 | */ |
| 6329 | BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10), |
| 6330 | /* dereference it */ |
| 6331 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0), |
| 6332 | BPF_EXIT_INSN(), |
| 6333 | }, |
| 6334 | .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)", |
| 6335 | .result = REJECT, |
| 6336 | .prog_type = BPF_PROG_TYPE_LWT_IN, |
| 6337 | }, |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6338 | }; |
| 6339 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6340 | static int probe_filter_length(const struct bpf_insn *fp) |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6341 | { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6342 | int len; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6343 | |
| 6344 | for (len = MAX_INSNS - 1; len > 0; --len) |
| 6345 | if (fp[len].code != 0 || fp[len].imm != 0) |
| 6346 | break; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6347 | return len + 1; |
| 6348 | } |
| 6349 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6350 | static int create_map(uint32_t size_value, uint32_t max_elem) |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6351 | { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6352 | int fd; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6353 | |
Mickaël Salaün | f4874d0 | 2017-02-10 00:21:43 +0100 | [diff] [blame] | 6354 | fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6355 | size_value, max_elem, BPF_F_NO_PREALLOC); |
| 6356 | if (fd < 0) |
| 6357 | printf("Failed to create hash map '%s'!\n", strerror(errno)); |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 6358 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6359 | return fd; |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 6360 | } |
| 6361 | |
| 6362 | static int create_prog_array(void) |
| 6363 | { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6364 | int fd; |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 6365 | |
Mickaël Salaün | f4874d0 | 2017-02-10 00:21:43 +0100 | [diff] [blame] | 6366 | fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6367 | sizeof(int), 4, 0); |
| 6368 | if (fd < 0) |
| 6369 | printf("Failed to create prog array '%s'!\n", strerror(errno)); |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6370 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6371 | return fd; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6372 | } |
| 6373 | |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6374 | static int create_map_in_map(void) |
| 6375 | { |
| 6376 | int inner_map_fd, outer_map_fd; |
| 6377 | |
| 6378 | inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int), |
| 6379 | sizeof(int), 1, 0); |
| 6380 | if (inner_map_fd < 0) { |
| 6381 | printf("Failed to create array '%s'!\n", strerror(errno)); |
| 6382 | return inner_map_fd; |
| 6383 | } |
| 6384 | |
| 6385 | outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, |
| 6386 | sizeof(int), inner_map_fd, 1, 0); |
| 6387 | if (outer_map_fd < 0) |
| 6388 | printf("Failed to create array of maps '%s'!\n", |
| 6389 | strerror(errno)); |
| 6390 | |
| 6391 | close(inner_map_fd); |
| 6392 | |
| 6393 | return outer_map_fd; |
| 6394 | } |
| 6395 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6396 | static char bpf_vlog[32768]; |
| 6397 | |
| 6398 | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6399 | int *map_fds) |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6400 | { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6401 | int *fixup_map1 = test->fixup_map1; |
| 6402 | int *fixup_map2 = test->fixup_map2; |
| 6403 | int *fixup_prog = test->fixup_prog; |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6404 | int *fixup_map_in_map = test->fixup_map_in_map; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6405 | |
| 6406 | /* Allocating HTs with 1 elem is fine here, since we only test |
| 6407 | * for verifier and not do a runtime lookup, so the only thing |
| 6408 | * that really matters is value size in this case. |
| 6409 | */ |
| 6410 | if (*fixup_map1) { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6411 | map_fds[0] = create_map(sizeof(long long), 1); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6412 | do { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6413 | prog[*fixup_map1].imm = map_fds[0]; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6414 | fixup_map1++; |
| 6415 | } while (*fixup_map1); |
| 6416 | } |
| 6417 | |
| 6418 | if (*fixup_map2) { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6419 | map_fds[1] = create_map(sizeof(struct test_val), 1); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6420 | do { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6421 | prog[*fixup_map2].imm = map_fds[1]; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6422 | fixup_map2++; |
| 6423 | } while (*fixup_map2); |
| 6424 | } |
| 6425 | |
| 6426 | if (*fixup_prog) { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6427 | map_fds[2] = create_prog_array(); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6428 | do { |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6429 | prog[*fixup_prog].imm = map_fds[2]; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6430 | fixup_prog++; |
| 6431 | } while (*fixup_prog); |
| 6432 | } |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6433 | |
| 6434 | if (*fixup_map_in_map) { |
| 6435 | map_fds[3] = create_map_in_map(); |
| 6436 | do { |
| 6437 | prog[*fixup_map_in_map].imm = map_fds[3]; |
| 6438 | fixup_map_in_map++; |
| 6439 | } while (*fixup_map_in_map); |
| 6440 | } |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6441 | } |
| 6442 | |
| 6443 | static void do_test_single(struct bpf_test *test, bool unpriv, |
| 6444 | int *passes, int *errors) |
| 6445 | { |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 6446 | int fd_prog, expected_ret, reject_from_alignment; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6447 | struct bpf_insn *prog = test->insns; |
| 6448 | int prog_len = probe_filter_length(prog); |
| 6449 | int prog_type = test->prog_type; |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6450 | int map_fds[MAX_NR_MAPS]; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6451 | const char *expected_err; |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6452 | int i; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6453 | |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6454 | for (i = 0; i < MAX_NR_MAPS; i++) |
| 6455 | map_fds[i] = -1; |
| 6456 | |
| 6457 | do_test_fixup(test, prog, map_fds); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6458 | |
Daniel Borkmann | 614d0d7 | 2017-05-25 01:05:09 +0200 | [diff] [blame] | 6459 | fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, |
| 6460 | prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT, |
Daniel Borkmann | d655490 | 2017-07-21 00:00:22 +0200 | [diff] [blame] | 6461 | "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6462 | |
| 6463 | expected_ret = unpriv && test->result_unpriv != UNDEF ? |
| 6464 | test->result_unpriv : test->result; |
| 6465 | expected_err = unpriv && test->errstr_unpriv ? |
| 6466 | test->errstr_unpriv : test->errstr; |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 6467 | |
| 6468 | reject_from_alignment = fd_prog < 0 && |
| 6469 | (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && |
| 6470 | strstr(bpf_vlog, "Unknown alignment."); |
| 6471 | #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS |
| 6472 | if (reject_from_alignment) { |
| 6473 | printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", |
| 6474 | strerror(errno)); |
| 6475 | goto fail_log; |
| 6476 | } |
| 6477 | #endif |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6478 | if (expected_ret == ACCEPT) { |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 6479 | if (fd_prog < 0 && !reject_from_alignment) { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6480 | printf("FAIL\nFailed to load prog '%s'!\n", |
| 6481 | strerror(errno)); |
| 6482 | goto fail_log; |
| 6483 | } |
| 6484 | } else { |
| 6485 | if (fd_prog >= 0) { |
| 6486 | printf("FAIL\nUnexpected success to load!\n"); |
| 6487 | goto fail_log; |
| 6488 | } |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 6489 | if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6490 | printf("FAIL\nUnexpected error message!\n"); |
| 6491 | goto fail_log; |
| 6492 | } |
| 6493 | } |
| 6494 | |
| 6495 | (*passes)++; |
Daniel Borkmann | 02ea80b | 2017-03-31 02:24:04 +0200 | [diff] [blame] | 6496 | printf("OK%s\n", reject_from_alignment ? |
| 6497 | " (NOTE: reject due to unknown alignment)" : ""); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6498 | close_fds: |
| 6499 | close(fd_prog); |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 6500 | for (i = 0; i < MAX_NR_MAPS; i++) |
| 6501 | close(map_fds[i]); |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6502 | sched_yield(); |
| 6503 | return; |
| 6504 | fail_log: |
| 6505 | (*errors)++; |
| 6506 | printf("%s", bpf_vlog); |
| 6507 | goto close_fds; |
| 6508 | } |
| 6509 | |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6510 | static bool is_admin(void) |
| 6511 | { |
| 6512 | cap_t caps; |
| 6513 | cap_flag_value_t sysadmin = CAP_CLEAR; |
| 6514 | const cap_value_t cap_val = CAP_SYS_ADMIN; |
| 6515 | |
Alexei Starovoitov | 1da8ac7 | 2017-03-10 22:05:55 -0800 | [diff] [blame] | 6516 | #ifdef CAP_IS_SUPPORTED |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6517 | if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { |
| 6518 | perror("cap_get_flag"); |
| 6519 | return false; |
| 6520 | } |
Alexei Starovoitov | 1da8ac7 | 2017-03-10 22:05:55 -0800 | [diff] [blame] | 6521 | #endif |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6522 | caps = cap_get_proc(); |
| 6523 | if (!caps) { |
| 6524 | perror("cap_get_proc"); |
| 6525 | return false; |
| 6526 | } |
| 6527 | if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) |
| 6528 | perror("cap_get_flag"); |
| 6529 | if (cap_free(caps)) |
| 6530 | perror("cap_free"); |
| 6531 | return (sysadmin == CAP_SET); |
| 6532 | } |
| 6533 | |
| 6534 | static int set_admin(bool admin) |
| 6535 | { |
| 6536 | cap_t caps; |
| 6537 | const cap_value_t cap_val = CAP_SYS_ADMIN; |
| 6538 | int ret = -1; |
| 6539 | |
| 6540 | caps = cap_get_proc(); |
| 6541 | if (!caps) { |
| 6542 | perror("cap_get_proc"); |
| 6543 | return -1; |
| 6544 | } |
| 6545 | if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, |
| 6546 | admin ? CAP_SET : CAP_CLEAR)) { |
| 6547 | perror("cap_set_flag"); |
| 6548 | goto out; |
| 6549 | } |
| 6550 | if (cap_set_proc(caps)) { |
| 6551 | perror("cap_set_proc"); |
| 6552 | goto out; |
| 6553 | } |
| 6554 | ret = 0; |
| 6555 | out: |
| 6556 | if (cap_free(caps)) |
| 6557 | perror("cap_free"); |
| 6558 | return ret; |
| 6559 | } |
| 6560 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6561 | static int do_test(bool unpriv, unsigned int from, unsigned int to) |
| 6562 | { |
| 6563 | int i, passes = 0, errors = 0; |
| 6564 | |
| 6565 | for (i = from; i < to; i++) { |
| 6566 | struct bpf_test *test = &tests[i]; |
| 6567 | |
| 6568 | /* Program types that are not supported by non-root we |
| 6569 | * skip right away. |
| 6570 | */ |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6571 | if (!test->prog_type) { |
| 6572 | if (!unpriv) |
| 6573 | set_admin(false); |
| 6574 | printf("#%d/u %s ", i, test->descr); |
| 6575 | do_test_single(test, true, &passes, &errors); |
| 6576 | if (!unpriv) |
| 6577 | set_admin(true); |
| 6578 | } |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6579 | |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6580 | if (!unpriv) { |
| 6581 | printf("#%d/p %s ", i, test->descr); |
| 6582 | do_test_single(test, false, &passes, &errors); |
| 6583 | } |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6584 | } |
| 6585 | |
| 6586 | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); |
Jesper Dangaard Brouer | efe5f9c | 2017-06-13 15:17:19 +0200 | [diff] [blame] | 6587 | return errors ? EXIT_FAILURE : EXIT_SUCCESS; |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6588 | } |
| 6589 | |
| 6590 | int main(int argc, char **argv) |
| 6591 | { |
| 6592 | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; |
| 6593 | struct rlimit rlim = { 1 << 20, 1 << 20 }; |
| 6594 | unsigned int from = 0, to = ARRAY_SIZE(tests); |
Mickaël Salaün | d02d898 | 2017-02-10 00:21:37 +0100 | [diff] [blame] | 6595 | bool unpriv = !is_admin(); |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6596 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6597 | if (argc == 3) { |
| 6598 | unsigned int l = atoi(argv[argc - 2]); |
| 6599 | unsigned int u = atoi(argv[argc - 1]); |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6600 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6601 | if (l < to && u < to) { |
| 6602 | from = l; |
| 6603 | to = u + 1; |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6604 | } |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6605 | } else if (argc == 2) { |
| 6606 | unsigned int t = atoi(argv[argc - 1]); |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 6607 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6608 | if (t < to) { |
| 6609 | from = t; |
| 6610 | to = t + 1; |
Alexei Starovoitov | bf50887 | 2015-10-07 22:23:23 -0700 | [diff] [blame] | 6611 | } |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6612 | } |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6613 | |
Daniel Borkmann | 5aa5bd1 | 2016-10-17 14:28:36 +0200 | [diff] [blame] | 6614 | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); |
| 6615 | return do_test(unpriv, from, to); |
Alexei Starovoitov | 3c731eb | 2014-09-26 00:17:07 -0700 | [diff] [blame] | 6616 | } |