[PATCH v2 bpf-next 0/2] Add support for bpf_setsockopt and

[Prankur gupta <prankgup@xxxxxx>]

v2: Added details about the test in commit log

This patch contains support to set and get socket options from
setsockopt
bpf program.
This enables us to set multiple socket option when the user changes a
particular socket option.
Example use case, 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.

Prankur gupta (2):
  bpf: Add support for {set|get} socket options from setsockopt BPF
  selftests/bpf: Add test for {set|get} socket option from setsockopt
    BPF program

 kernel/bpf/cgroup.c                           |  8 +++
 tools/testing/selftests/bpf/bpf_tcp_helpers.h | 18 +++++
 .../bpf/prog_tests/sockopt_qos_to_cc.c        | 70 +++++++++++++++++++
 .../selftests/bpf/progs/sockopt_qos_to_cc.c   | 39 +++++++++++
 4 files changed, 135 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/sockopt_qos_to_cc.c
 create mode 100644 tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c

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2.30.2