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| author |   YiFei Zhu <zhuyifei@google.com> | 2022-09-09 00:49:40 +0000 |
|---|---|---|
| committer |   Martin KaFai Lau <martin.lau@kernel.org> | 2022-09-09 10:40:45 -0700 |
| commit | e42921c3c346b1b49068af3f3881322081e1dddd (patch) | |
| tree | 51bf73beda4f03c3931dd87c8fe5a5ea029b19fc /tools/testing/selftests/bpf/test_progs.c | |
| parent | bpf: Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping (diff) | |
| download | linux-dev-e42921c3c346b1b49068af3f3881322081e1dddd.tar.xz linux-dev-e42921c3c346b1b49068af3f3881322081e1dddd.zip | |
selftests/bpf: Deduplicate write_sysctl() to test_progs.c
This helper is needed in multiple tests. Instead of copying it over
and over, better to deduplicate this helper to test_progs.c.
test_progs.c is chosen over testing_helpers.c because of this helper's
use of CHECK / ASSERT_*, and the CHECK was modified to use ASSERT_*
so it does not rely on a duration variable.
Suggested-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Link: https://lore.kernel.org/r/9b4fc9a27bd52f771b657b4c4090fc8d61f3a6b5.1662682323.git.zhuyifei@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/test_progs.c')
| -rw-r--r-- | tools/testing/selftests/bpf/test_progs.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c index 3561c97701f2..0e9a47f97890 100644 --- a/tools/testing/selftests/bpf/test_progs.c +++ b/tools/testing/selftests/bpf/test_progs.c @@ -943,6 +943,23 @@ int trigger_module_test_write(int write_sz) return 0; } +int write_sysctl(const char *sysctl, const char *value) +{ + int fd, err, len; + + fd = open(sysctl, O_WRONLY); + if (!ASSERT_NEQ(fd, -1, "open sysctl")) + return -1; + + len = strlen(value); + err = write(fd, value, len); + close(fd); + if (!ASSERT_EQ(err, len, "write sysctl")) + return -1; + + return 0; +} + #define MAX_BACKTRACE_SZ 128 void crash_handler(int signum) { |