| Age | Commit message (Expand) | Author | Files | Lines |
|---|---|---|---|---|
| Age | Commit message (Expand) | Author | Files | Lines |
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| commit | 61023658760032e97869b07d54be9681d2529e77 (patch) | |||
| tree | 9b10a9d2a8b5820450298f9bda8f3c23fbf66b57 | |||
| parent | b2cd12574aa3e1625f471ff57cde7f628a18a46b (diff) | |||
bpf: Add new cgroup attach type to enable sock modifications
Add new cgroup based program type, BPF_PROG_TYPE_CGROUP_SOCK. Similar to
BPF_PROG_TYPE_CGROUP_SKB programs can be attached to a cgroup and run
any time a process in the cgroup opens an AF_INET or AF_INET6 socket.
Currently only sk_bound_dev_if is exported to userspace for modification
by a bpf program.
This allows a cgroup to be configured such that AF_INET{6} sockets opened
by processes are automatically bound to a specific device. In turn, this
enables the running of programs that do not support SO_BINDTODEVICE in a
specific VRF context / L3 domain.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>