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authorDavid Ahern <dsa@cumulusnetworks.com>2016-12-01 08:48:04 -0800
committerDavid S. Miller <davem@davemloft.net>2016-12-02 13:46:08 -0500
commit61023658760032e97869b07d54be9681d2529e77 (patch)
tree9b10a9d2a8b5820450298f9bda8f3c23fbf66b57 /samples
parentb2cd12574aa3e1625f471ff57cde7f628a18a46b (diff)
downloadlinux-stericsson-61023658760032e97869b07d54be9681d2529e77.tar.gz
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>
Diffstat (limited to 'samples')
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