diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-10-29 13:20:55 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-11-03 17:41:21 +0100 |
| commit | abac8de3e5000b2b448bab4a9d19e35ce32e80ce (patch) | |
| tree | 625a33d43c97fc217c6138c9826aad75e2152dcb /tools/testing | |
| parent | 46909d13434bf73d09a224c1e5fca409adc94f10 (diff) | |
selftests/namespaces: fourth listns() test
Test listns() with LISTNS_CURRENT_USER.
List namespaces owned by current user namespace.
Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-42-2e6f823ebdc0@kernel.org
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/namespaces/listns_test.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/testing/selftests/namespaces/listns_test.c b/tools/testing/selftests/namespaces/listns_test.c index 7dff63a00263..457298cb4c64 100644 --- a/tools/testing/selftests/namespaces/listns_test.c +++ b/tools/testing/selftests/namespaces/listns_test.c @@ -168,4 +168,37 @@ TEST(listns_pagination) } } +/* + * Test listns() with LISTNS_CURRENT_USER. + * List namespaces owned by current user namespace. + */ +TEST(listns_current_user) +{ + struct ns_id_req req = { + .size = sizeof(req), + .spare = 0, + .ns_id = 0, + .ns_type = 0, + .spare2 = 0, + .user_ns_id = LISTNS_CURRENT_USER, + }; + __u64 ns_ids[100]; + ssize_t ret; + + ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0); + if (ret < 0) { + if (errno == ENOSYS) + SKIP(return, "listns() not supported"); + TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno); + ASSERT_TRUE(false); + } + ASSERT_GE(ret, 0); + + /* Should find at least the initial namespaces if we're in init_user_ns */ + TH_LOG("Found %zd namespaces owned by current user namespace", ret); + + for (ssize_t i = 0; i < ret; i++) + TH_LOG(" [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]); +} + TEST_HARNESS_MAIN |