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| author | Stanislav Fomichev <sdf@google.com> | 2021-01-27 15:28:53 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-01-29 02:09:31 +0100 |
| commit | 4c3384d7abe58a68d78fd1b8b3bffbf62e1e29a1 (patch) | |
| tree | 66b67311b707d50eda22b0151cd7278549e9b405 /net/core | |
| parent | 357490601621d077c2c90473fec66d7a8badedcc (diff) | |
| download | linux-4c3384d7abe58a68d78fd1b8b3bffbf62e1e29a1.tar.bz2 | |
bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket.
Note that we could remove the switch for prog->expected_attach_type altogether
since all current sock_addr attach types are covered. However, it makes sense
to keep it as a safe-guard in case new sock_addr attach types are added that
might not operate on a locked socket. Therefore, avoid to let this slip through.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210127232853.3753823-5-sdf@google.com
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/filter.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index ba436b1d70c2..e15d4741719a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -7023,6 +7023,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME: @@ -7039,6 +7041,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME: |