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| author |   Prankur Gupta <prankgup@fb.com> | 2021-08-17 15:42:20 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2021-08-20 01:04:52 +0200 |
| commit | 2c531639deb5e3ddfd6e8123b82052b2d9fbc6e5 (patch) | |
| tree | 4f23f7d3f661031fea98d69984ce28fc8b1a4191 /net/unix/af_unix.c | |
| parent | bpf: Use kvmalloc for map keys in syscalls (diff) | |
| download | wireguard-linux-2c531639deb5e3ddfd6e8123b82052b2d9fbc6e5.tar.xz wireguard-linux-2c531639deb5e3ddfd6e8123b82052b2d9fbc6e5.zip | |
bpf: Add support for {set|get} socket options from setsockopt BPF
Add logic to call bpf_setsockopt() and bpf_getsockopt() from setsockopt BPF
programs. An example use case is when the user sets the IPV6_TCLASS socket
option, we would also like to change the tcp-cc for that socket.
We don't have any use case for calling bpf_setsockopt() from supposedly read-
only sys_getsockopt(), so it is made available to BPF_CGROUP_SETSOCKOPT only
at this point.
Signed-off-by: Prankur Gupta <prankgup@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210817224221.3257826-2-prankgup@fb.com
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions