Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Crypto user configuration API. |
| 4 | * |
| 5 | * Copyright (C) 2017-2018 Corentin Labbe <clabbe@baylibre.com> |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include <linux/crypto.h> |
| 10 | #include <linux/cryptouser.h> |
| 11 | #include <linux/sched.h> |
| 12 | #include <net/netlink.h> |
| 13 | #include <crypto/internal/skcipher.h> |
| 14 | #include <crypto/internal/rng.h> |
| 15 | #include <crypto/akcipher.h> |
| 16 | #include <crypto/kpp.h> |
| 17 | #include <crypto/internal/cryptouser.h> |
| 18 | |
| 19 | #include "internal.h" |
| 20 | |
| 21 | #define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x)) |
| 22 | |
| 23 | static DEFINE_MUTEX(crypto_cfg_mutex); |
| 24 | |
| 25 | extern struct sock *crypto_nlsk; |
| 26 | |
| 27 | struct crypto_dump_info { |
| 28 | struct sk_buff *in_skb; |
| 29 | struct sk_buff *out_skb; |
| 30 | u32 nlmsg_seq; |
| 31 | u16 nlmsg_flags; |
| 32 | }; |
| 33 | |
| 34 | static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg) |
| 35 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 36 | struct crypto_stat_aead raead; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 37 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 38 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 39 | memset(&raead, 0, sizeof(raead)); |
| 40 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 41 | strscpy(raead.type, "aead", sizeof(raead.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 42 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 43 | v64 = atomic64_read(&alg->encrypt_cnt); |
| 44 | raead.stat_encrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 45 | v64 = atomic64_read(&alg->encrypt_tlen); |
| 46 | raead.stat_encrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 47 | v64 = atomic64_read(&alg->decrypt_cnt); |
| 48 | raead.stat_decrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 49 | v64 = atomic64_read(&alg->decrypt_tlen); |
| 50 | raead.stat_decrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 51 | v64 = atomic64_read(&alg->aead_err_cnt); |
| 52 | raead.stat_aead_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 53 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 54 | return nla_put(skb, CRYPTOCFGA_STAT_AEAD, sizeof(raead), &raead); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 55 | } |
| 56 | |
| 57 | static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg) |
| 58 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 59 | struct crypto_stat_cipher rcipher; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 60 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 61 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 62 | memset(&rcipher, 0, sizeof(rcipher)); |
| 63 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 64 | strscpy(rcipher.type, "cipher", sizeof(rcipher.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 65 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 66 | v64 = atomic64_read(&alg->encrypt_cnt); |
| 67 | rcipher.stat_encrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 68 | v64 = atomic64_read(&alg->encrypt_tlen); |
| 69 | rcipher.stat_encrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 70 | v64 = atomic64_read(&alg->decrypt_cnt); |
| 71 | rcipher.stat_decrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 72 | v64 = atomic64_read(&alg->decrypt_tlen); |
| 73 | rcipher.stat_decrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 74 | v64 = atomic64_read(&alg->cipher_err_cnt); |
| 75 | rcipher.stat_cipher_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 76 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 77 | return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg) |
| 81 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 82 | struct crypto_stat_compress rcomp; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 83 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 84 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 85 | memset(&rcomp, 0, sizeof(rcomp)); |
| 86 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 87 | strscpy(rcomp.type, "compression", sizeof(rcomp.type)); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 88 | v64 = atomic64_read(&alg->compress_cnt); |
| 89 | rcomp.stat_compress_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 90 | v64 = atomic64_read(&alg->compress_tlen); |
| 91 | rcomp.stat_compress_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 92 | v64 = atomic64_read(&alg->decompress_cnt); |
| 93 | rcomp.stat_decompress_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 94 | v64 = atomic64_read(&alg->decompress_tlen); |
| 95 | rcomp.stat_decompress_tlen = v64; |
Corentin Labbe | b0af91c | 2018-11-29 14:42:22 +0000 | [diff] [blame^] | 96 | v64 = atomic64_read(&alg->compress_err_cnt); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 97 | rcomp.stat_compress_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 98 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 99 | return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg) |
| 103 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 104 | struct crypto_stat_compress racomp; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 105 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 106 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 107 | memset(&racomp, 0, sizeof(racomp)); |
| 108 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 109 | strscpy(racomp.type, "acomp", sizeof(racomp.type)); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 110 | v64 = atomic64_read(&alg->compress_cnt); |
| 111 | racomp.stat_compress_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 112 | v64 = atomic64_read(&alg->compress_tlen); |
| 113 | racomp.stat_compress_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 114 | v64 = atomic64_read(&alg->decompress_cnt); |
| 115 | racomp.stat_decompress_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 116 | v64 = atomic64_read(&alg->decompress_tlen); |
| 117 | racomp.stat_decompress_tlen = v64; |
Corentin Labbe | b0af91c | 2018-11-29 14:42:22 +0000 | [diff] [blame^] | 118 | v64 = atomic64_read(&alg->compress_err_cnt); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 119 | racomp.stat_compress_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 120 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 121 | return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg) |
| 125 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 126 | struct crypto_stat_akcipher rakcipher; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 127 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 128 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 129 | memset(&rakcipher, 0, sizeof(rakcipher)); |
| 130 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 131 | strscpy(rakcipher.type, "akcipher", sizeof(rakcipher.type)); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 132 | v64 = atomic64_read(&alg->encrypt_cnt); |
| 133 | rakcipher.stat_encrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 134 | v64 = atomic64_read(&alg->encrypt_tlen); |
| 135 | rakcipher.stat_encrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 136 | v64 = atomic64_read(&alg->decrypt_cnt); |
| 137 | rakcipher.stat_decrypt_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 138 | v64 = atomic64_read(&alg->decrypt_tlen); |
| 139 | rakcipher.stat_decrypt_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 140 | v64 = atomic64_read(&alg->sign_cnt); |
| 141 | rakcipher.stat_sign_cnt = v64; |
| 142 | v64 = atomic64_read(&alg->verify_cnt); |
| 143 | rakcipher.stat_verify_cnt = v64; |
| 144 | v64 = atomic64_read(&alg->akcipher_err_cnt); |
| 145 | rakcipher.stat_akcipher_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 146 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 147 | return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER, |
| 148 | sizeof(rakcipher), &rakcipher); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg) |
| 152 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 153 | struct crypto_stat_kpp rkpp; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 154 | u64 v; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 155 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 156 | memset(&rkpp, 0, sizeof(rkpp)); |
| 157 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 158 | strscpy(rkpp.type, "kpp", sizeof(rkpp.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 159 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 160 | v = atomic64_read(&alg->setsecret_cnt); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 161 | rkpp.stat_setsecret_cnt = v; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 162 | v = atomic64_read(&alg->generate_public_key_cnt); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 163 | rkpp.stat_generate_public_key_cnt = v; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 164 | v = atomic64_read(&alg->compute_shared_secret_cnt); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 165 | rkpp.stat_compute_shared_secret_cnt = v; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 166 | v = atomic64_read(&alg->kpp_err_cnt); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 167 | rkpp.stat_kpp_err_cnt = v; |
| 168 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 169 | return nla_put(skb, CRYPTOCFGA_STAT_KPP, sizeof(rkpp), &rkpp); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg) |
| 173 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 174 | struct crypto_stat_hash rhash; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 175 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 176 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 177 | memset(&rhash, 0, sizeof(rhash)); |
| 178 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 179 | strscpy(rhash.type, "ahash", sizeof(rhash.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 180 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 181 | v64 = atomic64_read(&alg->hash_cnt); |
| 182 | rhash.stat_hash_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 183 | v64 = atomic64_read(&alg->hash_tlen); |
| 184 | rhash.stat_hash_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 185 | v64 = atomic64_read(&alg->hash_err_cnt); |
| 186 | rhash.stat_hash_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 187 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 188 | return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg) |
| 192 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 193 | struct crypto_stat_hash rhash; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 194 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 195 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 196 | memset(&rhash, 0, sizeof(rhash)); |
| 197 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 198 | strscpy(rhash.type, "shash", sizeof(rhash.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 199 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 200 | v64 = atomic64_read(&alg->hash_cnt); |
| 201 | rhash.stat_hash_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 202 | v64 = atomic64_read(&alg->hash_tlen); |
| 203 | rhash.stat_hash_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 204 | v64 = atomic64_read(&alg->hash_err_cnt); |
| 205 | rhash.stat_hash_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 206 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 207 | return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 208 | } |
| 209 | |
| 210 | static int crypto_report_rng(struct sk_buff *skb, struct crypto_alg *alg) |
| 211 | { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 212 | struct crypto_stat_rng rrng; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 213 | u64 v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 214 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 215 | memset(&rrng, 0, sizeof(rrng)); |
| 216 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 217 | strscpy(rrng.type, "rng", sizeof(rrng.type)); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 218 | |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 219 | v64 = atomic64_read(&alg->generate_cnt); |
| 220 | rrng.stat_generate_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 221 | v64 = atomic64_read(&alg->generate_tlen); |
| 222 | rrng.stat_generate_tlen = v64; |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 223 | v64 = atomic64_read(&alg->seed_cnt); |
| 224 | rrng.stat_seed_cnt = v64; |
Corentin Labbe | b0af91c | 2018-11-29 14:42:22 +0000 | [diff] [blame^] | 225 | v64 = atomic64_read(&alg->rng_err_cnt); |
Corentin Labbe | 6e8e72c | 2018-11-29 14:42:18 +0000 | [diff] [blame] | 226 | rrng.stat_rng_err_cnt = v64; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 227 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 228 | return nla_put(skb, CRYPTOCFGA_STAT_RNG, sizeof(rrng), &rrng); |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | static int crypto_reportstat_one(struct crypto_alg *alg, |
| 232 | struct crypto_user_alg *ualg, |
| 233 | struct sk_buff *skb) |
| 234 | { |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 235 | memset(ualg, 0, sizeof(*ualg)); |
| 236 | |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 237 | strscpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name)); |
| 238 | strscpy(ualg->cru_driver_name, alg->cra_driver_name, |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 239 | sizeof(ualg->cru_driver_name)); |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 240 | strscpy(ualg->cru_module_name, module_name(alg->cra_module), |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 241 | sizeof(ualg->cru_module_name)); |
| 242 | |
| 243 | ualg->cru_type = 0; |
| 244 | ualg->cru_mask = 0; |
| 245 | ualg->cru_flags = alg->cra_flags; |
| 246 | ualg->cru_refcnt = refcount_read(&alg->cra_refcnt); |
| 247 | |
| 248 | if (nla_put_u32(skb, CRYPTOCFGA_PRIORITY_VAL, alg->cra_priority)) |
| 249 | goto nla_put_failure; |
| 250 | if (alg->cra_flags & CRYPTO_ALG_LARVAL) { |
Corentin Labbe | 7f0a9d5 | 2018-11-29 14:42:19 +0000 | [diff] [blame] | 251 | struct crypto_stat_larval rl; |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 252 | |
Corentin Labbe | 9f4debe | 2018-11-03 14:56:01 -0700 | [diff] [blame] | 253 | memset(&rl, 0, sizeof(rl)); |
Eric Biggers | 37db69e | 2018-11-03 14:56:03 -0700 | [diff] [blame] | 254 | strscpy(rl.type, "larval", sizeof(rl.type)); |
| 255 | if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL, sizeof(rl), &rl)) |
Corentin Labbe | cac5818 | 2018-09-19 10:10:54 +0000 | [diff] [blame] | 256 | goto nla_put_failure; |
| 257 | goto out; |
| 258 | } |
| 259 | |
| 260 | switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) { |
| 261 | case CRYPTO_ALG_TYPE_AEAD: |
| 262 | if (crypto_report_aead(skb, alg)) |
| 263 | goto nla_put_failure; |
| 264 | break; |
| 265 | case CRYPTO_ALG_TYPE_SKCIPHER: |
| 266 | if (crypto_report_cipher(skb, alg)) |
| 267 | goto nla_put_failure; |
| 268 | break; |
| 269 | case CRYPTO_ALG_TYPE_BLKCIPHER: |
| 270 | if (crypto_report_cipher(skb, alg)) |
| 271 | goto nla_put_failure; |
| 272 | break; |
| 273 | case CRYPTO_ALG_TYPE_CIPHER: |
| 274 | if (crypto_report_cipher(skb, alg)) |
| 275 | goto nla_put_failure; |
| 276 | break; |
| 277 | case CRYPTO_ALG_TYPE_COMPRESS: |
| 278 | if (crypto_report_comp(skb, alg)) |
| 279 | goto nla_put_failure; |
| 280 | break; |
| 281 | case CRYPTO_ALG_TYPE_ACOMPRESS: |
| 282 | if (crypto_report_acomp(skb, alg)) |
| 283 | goto nla_put_failure; |
| 284 | break; |
| 285 | case CRYPTO_ALG_TYPE_SCOMPRESS: |
| 286 | if (crypto_report_acomp(skb, alg)) |
| 287 | goto nla_put_failure; |
| 288 | break; |
| 289 | case CRYPTO_ALG_TYPE_AKCIPHER: |
| 290 | if (crypto_report_akcipher(skb, alg)) |
| 291 | goto nla_put_failure; |
| 292 | break; |
| 293 | case CRYPTO_ALG_TYPE_KPP: |
| 294 | if (crypto_report_kpp(skb, alg)) |
| 295 | goto nla_put_failure; |
| 296 | break; |
| 297 | case CRYPTO_ALG_TYPE_AHASH: |
| 298 | if (crypto_report_ahash(skb, alg)) |
| 299 | goto nla_put_failure; |
| 300 | break; |
| 301 | case CRYPTO_ALG_TYPE_HASH: |
| 302 | if (crypto_report_shash(skb, alg)) |
| 303 | goto nla_put_failure; |
| 304 | break; |
| 305 | case CRYPTO_ALG_TYPE_RNG: |
| 306 | if (crypto_report_rng(skb, alg)) |
| 307 | goto nla_put_failure; |
| 308 | break; |
| 309 | default: |
| 310 | pr_err("ERROR: Unhandled alg %d in %s\n", |
| 311 | alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL), |
| 312 | __func__); |
| 313 | } |
| 314 | |
| 315 | out: |
| 316 | return 0; |
| 317 | |
| 318 | nla_put_failure: |
| 319 | return -EMSGSIZE; |
| 320 | } |
| 321 | |
| 322 | static int crypto_reportstat_alg(struct crypto_alg *alg, |
| 323 | struct crypto_dump_info *info) |
| 324 | { |
| 325 | struct sk_buff *in_skb = info->in_skb; |
| 326 | struct sk_buff *skb = info->out_skb; |
| 327 | struct nlmsghdr *nlh; |
| 328 | struct crypto_user_alg *ualg; |
| 329 | int err = 0; |
| 330 | |
| 331 | nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, info->nlmsg_seq, |
| 332 | CRYPTO_MSG_GETSTAT, sizeof(*ualg), info->nlmsg_flags); |
| 333 | if (!nlh) { |
| 334 | err = -EMSGSIZE; |
| 335 | goto out; |
| 336 | } |
| 337 | |
| 338 | ualg = nlmsg_data(nlh); |
| 339 | |
| 340 | err = crypto_reportstat_one(alg, ualg, skb); |
| 341 | if (err) { |
| 342 | nlmsg_cancel(skb, nlh); |
| 343 | goto out; |
| 344 | } |
| 345 | |
| 346 | nlmsg_end(skb, nlh); |
| 347 | |
| 348 | out: |
| 349 | return err; |
| 350 | } |
| 351 | |
| 352 | int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, |
| 353 | struct nlattr **attrs) |
| 354 | { |
| 355 | struct crypto_user_alg *p = nlmsg_data(in_nlh); |
| 356 | struct crypto_alg *alg; |
| 357 | struct sk_buff *skb; |
| 358 | struct crypto_dump_info info; |
| 359 | int err; |
| 360 | |
| 361 | if (!null_terminated(p->cru_name) || !null_terminated(p->cru_driver_name)) |
| 362 | return -EINVAL; |
| 363 | |
| 364 | alg = crypto_alg_match(p, 0); |
| 365 | if (!alg) |
| 366 | return -ENOENT; |
| 367 | |
| 368 | err = -ENOMEM; |
| 369 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
| 370 | if (!skb) |
| 371 | goto drop_alg; |
| 372 | |
| 373 | info.in_skb = in_skb; |
| 374 | info.out_skb = skb; |
| 375 | info.nlmsg_seq = in_nlh->nlmsg_seq; |
| 376 | info.nlmsg_flags = 0; |
| 377 | |
| 378 | err = crypto_reportstat_alg(alg, &info); |
| 379 | |
| 380 | drop_alg: |
| 381 | crypto_mod_put(alg); |
| 382 | |
| 383 | if (err) |
| 384 | return err; |
| 385 | |
| 386 | return nlmsg_unicast(crypto_nlsk, skb, NETLINK_CB(in_skb).portid); |
| 387 | } |
| 388 | |
| 389 | int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb) |
| 390 | { |
| 391 | struct crypto_alg *alg; |
| 392 | struct crypto_dump_info info; |
| 393 | int err; |
| 394 | |
| 395 | if (cb->args[0]) |
| 396 | goto out; |
| 397 | |
| 398 | cb->args[0] = 1; |
| 399 | |
| 400 | info.in_skb = cb->skb; |
| 401 | info.out_skb = skb; |
| 402 | info.nlmsg_seq = cb->nlh->nlmsg_seq; |
| 403 | info.nlmsg_flags = NLM_F_MULTI; |
| 404 | |
| 405 | list_for_each_entry(alg, &crypto_alg_list, cra_list) { |
| 406 | err = crypto_reportstat_alg(alg, &info); |
| 407 | if (err) |
| 408 | goto out_err; |
| 409 | } |
| 410 | |
| 411 | out: |
| 412 | return skb->len; |
| 413 | out_err: |
| 414 | return err; |
| 415 | } |
| 416 | |
| 417 | int crypto_dump_reportstat_done(struct netlink_callback *cb) |
| 418 | { |
| 419 | return 0; |
| 420 | } |
| 421 | |
| 422 | MODULE_LICENSE("GPL"); |