diff options
| author | Breno Leitao <[email protected]> | 2023-10-16 13:47:39 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2023-10-19 20:05:28 +0000 |
| commit | a615f67e1a426f35366b8398c11f31c148e7df48 (patch) | |
| tree | 4e4f6688f2ea831ce503599d3880f73d60e026db /net/socket.c | |
| parent | io_uring/poll: use IOU_F_TWQ_LAZY_WAKE for wakeups (diff) | |
| download | kernel-a615f67e1a426f35366b8398c11f31c148e7df48.tar.gz kernel-a615f67e1a426f35366b8398c11f31c148e7df48.zip | |
bpf: Add sockptr support for getsockopt
The whole network stack uses sockptr, and while it doesn't move to
something more modern, let's use sockptr in getsockptr BPF hooks, so, it
could be used by other callers.
The main motivation for this change is to use it in the io_uring
{g,s}etsockopt(), which will use a userspace pointer for *optval, but, a
kernel value for optlen.
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: Breno Leitao <[email protected]>
Acked-by: Martin KaFai Lau <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/socket.c b/net/socket.c index c8b08b32f097..82cd6890a4f0 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2356,8 +2356,9 @@ int __sys_getsockopt(int fd, int level, int optname, char __user *optval, if (!in_compat_syscall()) err = BPF_CGROUP_RUN_PROG_GETSOCKOPT(sock->sk, level, optname, - optval, optlen, max_optlen, - err); + USER_SOCKPTR(optval), + USER_SOCKPTR(optlen), + max_optlen, err); out_put: fput_light(sock->file, fput_needed); return err; |