selftests/bpf: Tests for sockmap/sockhash holding listening sockets

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Now that SOCKMAP and SOCKHASH map types can store listening sockets,
user-space and BPF API is open to a new set of potential pitfalls.

Exercise the map operations, with extra attention to code paths susceptible
to races between map ops and socket cloning, and BPF helpers that work with
SOCKMAP/SOCKHASH to gain confidence that all works as expected.

Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200218171023.844439-12-jakub@cloudflare.com

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This commit is contained in:

Jakub Sitnicki

2020-02-18 17:10:23 +00:00

committed by Daniel Borkmann

parent 11318ba8ca

commit 44d28be2b8

2 changed files with 1594 additions and 0 deletions

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tools/testing/selftests/bpf/prog_tests/sockmap_listen.c Normal file

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