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| author | Lorenz Bauer <lmb@cloudflare.com> | 2020-09-28 10:08:05 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-09-28 16:48:02 -0700 |
| commit | 5b87adc3ceee3c3131e24e9bc9ef92dd41db089f (patch) | |
| tree | ae664a475c782e9d22991f2672eef4b56e4fd72f /tools/testing/selftests/bpf/prog_tests/sockmap_basic.c | |
| parent | 27870317337a6c24af503304620de8064c8d2e4a (diff) | |
| download | lwn-5b87adc3ceee3c3131e24e9bc9ef92dd41db089f.tar.gz lwn-5b87adc3ceee3c3131e24e9bc9ef92dd41db089f.zip | |
selftest: bpf: Test copying a sockmap and sockhash
Since we can now call map_update_elem(sockmap) from bpf_iter context
it's possible to copy a sockmap or sockhash in the kernel. Add a
selftest which exercises this.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200928090805.23343-5-lmb@cloudflare.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/sockmap_basic.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/sockmap_basic.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 316c4e271b36..4c4224e3e10a 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -194,7 +194,7 @@ static void test_sockmap_invalid_update(void) test_sockmap_invalid_update__destroy(skel); } -static void test_sockmap_iter(enum bpf_map_type map_type) +static void test_sockmap_copy(enum bpf_map_type map_type) { DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts); int err, len, src_fd, iter_fd, duration = 0; @@ -242,7 +242,7 @@ static void test_sockmap_iter(enum bpf_map_type map_type) linfo.map.map_fd = src_fd; opts.link_info = &linfo; opts.link_info_len = sizeof(linfo); - link = bpf_program__attach_iter(skel->progs.count_elems, &opts); + link = bpf_program__attach_iter(skel->progs.copy, &opts); if (CHECK(IS_ERR(link), "attach_iter", "attach_iter failed\n")) goto out; @@ -265,6 +265,8 @@ static void test_sockmap_iter(enum bpf_map_type map_type) skel->bss->socks, num_sockets)) goto close_iter; + compare_cookies(src, skel->maps.dst); + close_iter: close(iter_fd); free_link: @@ -294,8 +296,8 @@ void test_sockmap_basic(void) test_sockmap_update(BPF_MAP_TYPE_SOCKHASH); if (test__start_subtest("sockmap update in unsafe context")) test_sockmap_invalid_update(); - if (test__start_subtest("sockmap iter")) - test_sockmap_iter(BPF_MAP_TYPE_SOCKMAP); - if (test__start_subtest("sockhash iter")) - test_sockmap_iter(BPF_MAP_TYPE_SOCKHASH); + if (test__start_subtest("sockmap copy")) + test_sockmap_copy(BPF_MAP_TYPE_SOCKMAP); + if (test__start_subtest("sockhash copy")) + test_sockmap_copy(BPF_MAP_TYPE_SOCKHASH); } |