mbox series

[bpf-next,0/4] Provide bpf_sk_storage data in INET_DIAG

Message ID 20200221184650.21920-1-kafai@fb.com
Headers show
Series Provide bpf_sk_storage data in INET_DIAG | expand

Message

Martin KaFai Lau Feb. 21, 2020, 6:46 p.m. UTC 
The bpf_prog can store specific info to a sk by using bpf_sk_storage.
In other words, a sk can be extended by a bpf_prog.

This series is to support providing bpf_sk_storage data during inet_diag's
dump.  The primary target is the usage like iproute2's "ss".

The first two patches are refactoring works in inet_diag to make
adding bpf_sk_storage support easier.  The next two patches do
the actual work.

Please see individual patch for details.

Martin KaFai Lau (4):
  inet_diag: Refactor inet_sk_diag_fill(), dump(), and dump_one()
  inet_diag: Move the INET_DIAG_REQ_BYTECODE nlattr to cb->data
  bpf: INET_DIAG support in bpf_sk_storage
  bpf: inet_diag: Dump bpf_sk_storages in inet_diag_dump()

 include/linux/bpf.h            |   1 +
 include/linux/inet_diag.h      |  27 +--
 include/linux/netlink.h        |   4 +-
 include/net/bpf_sk_storage.h   |  27 +++
 include/uapi/linux/inet_diag.h |   5 +-
 include/uapi/linux/sock_diag.h |  26 +++
 kernel/bpf/syscall.c           |  15 ++
 net/core/bpf_sk_storage.c      | 283 +++++++++++++++++++++++++++++-
 net/dccp/diag.c                |   9 +-
 net/ipv4/inet_diag.c           | 304 ++++++++++++++++++++-------------
 net/ipv4/raw_diag.c            |  24 ++-
 net/ipv4/tcp_diag.c            |   8 +-
 net/ipv4/udp_diag.c            |  41 +++--
 net/sctp/diag.c                |   7 +-
 14 files changed, 596 insertions(+), 185 deletions(-)