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authorYonghong Song <yhs@fb.com>2020-06-24 01:08:11 +0200
committerAlexei Starovoitov <ast@kernel.org>2020-06-25 03:37:59 +0200
commit478cfbdf5f13dfe09cfd0b1cbac821f5e27f6108 (patch)
treefebcb078fe63001ae8c004f218e9ff1acc2a68e2 /kernel/trace/bpf_trace.c
parentbpf: Add bpf_skc_to_tcp6_sock() helper (diff)
downloadlinux-478cfbdf5f13dfe09cfd0b1cbac821f5e27f6108.tar.xz
linux-478cfbdf5f13dfe09cfd0b1cbac821f5e27f6108.zip
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
Diffstat (limited to 'kernel/trace/bpf_trace.c')
-rw-r--r--kernel/trace/bpf_trace.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index 2a97a268f533..48d935b0d87c 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -1517,6 +1517,12 @@ tracing_prog_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
return &bpf_xdp_output_proto;
case BPF_FUNC_skc_to_tcp6_sock:
return &bpf_skc_to_tcp6_sock_proto;
+ case BPF_FUNC_skc_to_tcp_sock:
+ return &bpf_skc_to_tcp_sock_proto;
+ case BPF_FUNC_skc_to_tcp_timewait_sock:
+ return &bpf_skc_to_tcp_timewait_sock_proto;
+ case BPF_FUNC_skc_to_tcp_request_sock:
+ return &bpf_skc_to_tcp_request_sock_proto;
#endif
case BPF_FUNC_seq_printf:
return prog->expected_attach_type == BPF_TRACE_ITER ?