diff options
| author |  Martin KaFai Lau <kafai@fb.com>
| 2022-08-16 23:18:19 -0700 |
|---|---|---|
| committer |  Alexei Starovoitov <ast@kernel.org>
| 2022-08-18 17:06:13 -0700 |
| commit | 0c751f7071ef98d334ed06ca3f8f4cc1f7458cf5 (patch) | |
| tree | 9dab421d43fbfea213f577c66385267e3efe5d80 /net/ipv4/tcp.c | |
| parent | bpf: Refactor bpf specific tcp optnames to a new function (diff) | |
| download | linux-0c751f7071ef98d334ed06ca3f8f4cc1f7458cf5.tar.gz linux-0c751f7071ef98d334ed06ca3f8f4cc1f7458cf5.tar.bz2 linux-0c751f7071ef98d334ed06ca3f8f4cc1f7458cf5.zip | |
bpf: Change bpf_setsockopt(SOL_TCP) to reuse do_tcp_setsockopt()
After the prep work in the previous patches,
this patch removes all the dup code from bpf_setsockopt(SOL_TCP)
and reuses the do_tcp_setsockopt().
The existing optname white-list is refactored into a new
function sol_tcp_setsockopt(). The sol_tcp_setsockopt()
also calls the bpf_sol_tcp_setsockopt() to handle
the TCP_BPF_XXX specific optnames.
bpf_setsockopt(TCP_SAVE_SYN) now also allows a value 2 to
save the eth header also and it comes for free from
do_tcp_setsockopt().
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220817061819.4180146-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index cfed84b1883f..a6986f201f92 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3479,8 +3479,8 @@ int tcp_set_window_clamp(struct sock *sk, int val) /* * Socket option code for TCP. */ -static int do_tcp_setsockopt(struct sock *sk, int level, int optname, - sockptr_t optval, unsigned int optlen) +int do_tcp_setsockopt(struct sock *sk, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct tcp_sock *tp = tcp_sk(sk); struct inet_connection_sock *icsk = inet_csk(sk); |