diff options
| author |   Martin KaFai Lau <kafai@fb.com> | 2022-08-16 23:18:04 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-08-18 17:06:13 -0700 |
| commit | 29003875bd5bab262a29d1c6e76a2124bd07e4c2 (patch) | |
| tree | 4dd0e5a07b181664d68234b0613bcf78be41681b /net/core/sock.c | |
| parent | bpf: Embed kernel CONFIG check into the if statement in bpf_setsockopt (diff) | |
| download | linux-dev-29003875bd5bab262a29d1c6e76a2124bd07e4c2.tar.xz linux-dev-29003875bd5bab262a29d1c6e76a2124bd07e4c2.zip | |
bpf: Change bpf_setsockopt(SOL_SOCKET) to reuse sk_setsockopt()
After the prep work in the previous patches,
this patch removes most of the dup code from bpf_setsockopt(SOL_SOCKET)
and reuses them from sk_setsockopt().
The sock ptr test is added to the SO_RCVLOWAT because
the sk->sk_socket could be NULL in some of the bpf hooks.
The existing optname white-list is refactored into a new
function sol_socket_setsockopt().
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220817061804.4178920-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 7ea46e4700fd..2a6f84702eb9 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1077,8 +1077,8 @@ EXPORT_SYMBOL(sockopt_capable); * at the socket level. Everything here is generic. */ -static int sk_setsockopt(struct sock *sk, int level, int optname, - sockptr_t optval, unsigned int optlen) +int sk_setsockopt(struct sock *sk, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct so_timestamping timestamping; struct socket *sock = sk->sk_socket; @@ -1264,7 +1264,7 @@ set_sndbuf: case SO_RCVLOWAT: if (val < 0) val = INT_MAX; - if (sock->ops->set_rcvlowat) + if (sock && sock->ops->set_rcvlowat) ret = sock->ops->set_rcvlowat(sk, val); else WRITE_ONCE(sk->sk_rcvlowat, val ? : 1); |