bpf: Add bpf_skc_to_{tcp, tcp_timewait, tcp_request}_sock() helpers
Three more helpers are added to cast a sock_common pointer to
an tcp_sock, tcp_timewait_sock or a tcp_request_sock for
tracing programs.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200623230811.3988277-1-yhs@fb.com
diff --git a/scripts/bpf_helpers_doc.py b/scripts/bpf_helpers_doc.py
index 6c2f641..d886657 100755
--- a/scripts/bpf_helpers_doc.py
+++ b/scripts/bpf_helpers_doc.py
@@ -422,6 +422,9 @@
'struct tcphdr',
'struct seq_file',
'struct tcp6_sock',
+ 'struct tcp_sock',
+ 'struct tcp_timewait_sock',
+ 'struct tcp_request_sock',
'struct __sk_buff',
'struct sk_msg_md',
@@ -460,6 +463,9 @@
'struct tcphdr',
'struct seq_file',
'struct tcp6_sock',
+ 'struct tcp_sock',
+ 'struct tcp_timewait_sock',
+ 'struct tcp_request_sock',
}
mapped_types = {
'u8': '__u8',