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| author |   Martin KaFai Lau <martin.lau@kernel.org> | 2022-09-01 17:29:12 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-09-02 20:34:31 -0700 |
| commit | 65ddc82d3b96be5555a36de4e2b4547433a00532 (patch) | |
| tree | 7dcd433ef37e4ef8a9a5a85bc5c2d8861858595c /include/net/sock.h | |
| parent | bpf: Embed kernel CONFIG check into the if statement in bpf_getsockopt (diff) | |
| download | linux-dev-65ddc82d3b96be5555a36de4e2b4547433a00532.tar.xz linux-dev-65ddc82d3b96be5555a36de4e2b4547433a00532.zip | |
bpf: Change bpf_getsockopt(SOL_SOCKET) to reuse sk_getsockopt()
This patch changes bpf_getsockopt(SOL_SOCKET) to reuse
sk_getsockopt(). It removes all duplicated code from
bpf_getsockopt(SOL_SOCKET).
Before this patch, there were some optnames available to
bpf_setsockopt(SOL_SOCKET) but missing in bpf_getsockopt(SOL_SOCKET).
It surprises users from time to time. For example, SO_REUSEADDR,
SO_KEEPALIVE, SO_RCVLOWAT, and SO_MAX_PACING_RATE. This patch
automatically closes this gap without duplicating more code.
The only exception is SO_BINDTODEVICE because it needs to acquire a
blocking lock. Thus, SO_BINDTODEVICE is not supported.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002912.2894040-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index ee44b424d952..ea7965524133 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1833,6 +1833,8 @@ int sk_setsockopt(struct sock *sk, int level, int optname, int sock_setsockopt(struct socket *sock, int level, int op, sockptr_t optval, unsigned int optlen); +int sk_getsockopt(struct sock *sk, int level, int optname, + sockptr_t optval, sockptr_t optlen); int sock_getsockopt(struct socket *sock, int level, int op, char __user *optval, int __user *optlen); int sock_gettstamp(struct socket *sock, void __user *userstamp, |