[bpf-next PATCH 0/3] Hash support for sock

[John Fastabend <john.fastabend@gmail.com>]

In the original sockmap implementation we got away with using an
array similar to devmap. However, unlike devmap where an ifindex
has a nice 1:1 function into the map we have found some use cases
with sockets need to be referenced using longer keys.

This series adds support for a sockhash map type which reuses almost
all the sockmap code except it needed a few special add/remove
handlers.

To test this we duplicate all the sockmap testing except swap out
the sockmap with a sockhash.

---

John Fastabend (3):
      bpf: sockmap, refactor sockmap routines to work with hashmap
      bpf: sockmap, add hash map support
      bpf: selftest additions for SOCKHASH


 tools/bpf/bpftool/map.c                          |    1 
 tools/include/uapi/linux/bpf.h                   |    6 
 tools/testing/selftests/bpf/Makefile             |    3 
 tools/testing/selftests/bpf/test_sockhash_kern.c |    4 
 tools/testing/selftests/bpf/test_sockmap.c       |   27 +-
 tools/testing/selftests/bpf/test_sockmap_kern.c  |  340 ----------------------
 tools/testing/selftests/bpf/test_sockmap_kern.h  |  340 ++++++++++++++++++++++
 7 files changed, 374 insertions(+), 347 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/test_sockhash_kern.c
 create mode 100644 tools/testing/selftests/bpf/test_sockmap_kern.h