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selftests/bpf: Add two mptcp netns helpers

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Add two netns helpers for mptcp tests: create_netns() and
cleanup_netns(). Use them in test_base().

These new helpers will be re-used in the following commits
introducing new tests.

Acked-by: Yonghong Song <yonghong.song@linux.dev>
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Link: https://lore.kernel.org/r/7506371fb6c417b401cc9d7365fe455754f4ba3f.1692147782.git.geliang.tang@suse.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Geliang Tang 2023-08-16 09:11:57 +08:00 committed by Martin KaFai Lau
parent 0dd061a6a1
commit 97c9c65208
1 changed files with 21 additions and 10 deletions
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31
tools/testing/selftests/bpf/prog_tests/mptcp.c
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@ -22,6 +22,24 @@ struct mptcp_storage {
char ca_name[TCP_CA_NAME_MAX];
};
static struct nstoken *create_netns(void)
{
SYS(fail, "ip netns add %s", NS_TEST);
SYS(fail, "ip -net %s link set dev lo up", NS_TEST);
return open_netns(NS_TEST);
fail:
return NULL;
}
static void cleanup_netns(struct nstoken *nstoken)
{
if (nstoken)
close_netns(nstoken);
SYS_NOFAIL("ip netns del %s &> /dev/null", NS_TEST);
}
static int verify_tsk(int map_fd, int client_fd)
{
int err, cfd = client_fd;
@ -147,11 +165,8 @@ static void test_base(void)
if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup"))
return;
SYS(fail, "ip netns add %s", NS_TEST);
SYS(fail, "ip -net %s link set dev lo up", NS_TEST);
nstoken = open_netns(NS_TEST);
if (!ASSERT_OK_PTR(nstoken, "open_netns"))
nstoken = create_netns();
if (!ASSERT_OK_PTR(nstoken, "create_netns"))
goto fail;
/* without MPTCP */
@ -174,11 +189,7 @@ with_mptcp:
close(server_fd);
fail:
if (nstoken)
close_netns(nstoken);
SYS_NOFAIL("ip netns del " NS_TEST " &> /dev/null");
cleanup_netns(nstoken);
close(cgroup_fd);
}