mbox series

[bpf-next,v3,0/4] xfrm: interface: Add unstable helpers for XFRM metadata

Message ID 20221201211425.1528197-1-eyal.birger@gmail.com (mailing list archive)
Headers show
Series xfrm: interface: Add unstable helpers for XFRM metadata | expand

Message

Eyal Birger Dec. 1, 2022, 9:14 p.m. UTC 
This patch series adds xfrm metadata helpers using the unstable kfunc
call interface for the TC-BPF hooks.

This allows steering traffic towards different IPsec connections based
on logic implemented in bpf programs.

The helpers are integrated into the xfrm_interface module. For this
purpose the main functionality of this module is moved to
xfrm_interface_core.c.

---

Series changes in v3:
  - tag bpf-next tree instead of ipsec-next
  - add IFLA_XFRM_COLLECT_METADATA sync patch

Eyal Birger (4):
  xfrm: interface: rename xfrm_interface.c to xfrm_interface_core.c
  xfrm: interface: Add unstable helpers for setting/getting XFRM
    metadata from TC-BPF
  tools: add IFLA_XFRM_COLLECT_METADATA to uapi/linux/if_link.h
  selftests/bpf: add xfrm_info tests

 include/net/dst_metadata.h                    |   1 +
 include/net/xfrm.h                            |  20 +
 net/core/dst.c                                |   8 +-
 net/xfrm/Makefile                             |   8 +
 net/xfrm/xfrm_interface_bpf.c                 |  99 +++++
 ...xfrm_interface.c => xfrm_interface_core.c} |  15 +
 tools/include/uapi/linux/if_link.h            |   1 +
 tools/testing/selftests/bpf/config            |   2 +
 .../selftests/bpf/prog_tests/xfrm_info.c      | 365 ++++++++++++++++++
 tools/testing/selftests/bpf/progs/xfrm_info.c |  40 ++
 10 files changed, 557 insertions(+), 2 deletions(-)
 create mode 100644 net/xfrm/xfrm_interface_bpf.c
 rename net/xfrm/{xfrm_interface.c => xfrm_interface_core.c} (98%)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/xfrm_info.c
 create mode 100644 tools/testing/selftests/bpf/progs/xfrm_info.c