[PATCH v9 6/6] selftests/liveupdate: add test cases for LIVEUPDATE_SESSION_GET_NAME

luca.boccassi
2026-04-20T14:18:09Z

Verify that the new LIVEUPDATE_SESSION_GET_NAME ioctl works
as expected via new test cases in the existing liveupdate selftest.

Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
---
.../testing/selftests/liveupdate/liveupdate.c | 71 +++++++++++++++++++
1 file changed, 71 insertions(+)

diff --git a/tools/testing/selftests/liveupdate/liveupdate.c b/tools/testing/selftests/liveupdate/liveupdate.c
index 5e99af0cc6e9..c21354dc9b93 100644
--- a/tools/testing/selftests/liveupdate/liveupdate.c
+++ b/tools/testing/selftests/liveupdate/liveupdate.c
@@ -105,6 +105,22 @@ static int create_session(int lu_fd, const char *name)
return args.fd;
}

+/* Helper function to get a session name via ioctl. */
+static int get_session_name(int session_fd, char *name, size_t name_len)
+{
+ struct liveupdate_session_get_name args = {};
+
+ args.size = sizeof(args);
+
+ if (ioctl(session_fd, LIVEUPDATE_SESSION_GET_NAME, &args))
+ return -errno;
+
+ strncpy(name, (char *)args.name, name_len - 1);
+ name[name_len - 1] = '\0';
+
+ return 0;
+}
+
/*
* Test Case: Create Duplicate Session
*
@@ -427,4 +443,59 @@ TEST_F(liveupdate_device, session_fstat)
ASSERT_EQ(close(session_fd2), 0);
}

+/*
+ * Test Case: Get Session Name
+ *
+ * Verifies that the full session name can be retrieved from a session file
+ * descriptor via ioctl.
+ */
+TEST_F(liveupdate_device, get_session_name)
+{
+ char name_buf[LIVEUPDATE_SESSION_NAME_LENGTH] = {};
+ const char *session_name = "get-name-test-session";
+ int session_fd;
+
+ self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+ if (self->fd1 < 0 && errno == ENOENT)
+ SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+ ASSERT_GE(self->fd1, 0);
+
+ session_fd = create_session(self->fd1, session_name);
+ ASSERT_GE(session_fd, 0);
+
+ ASSERT_EQ(get_session_name(session_fd, name_buf, sizeof(name_buf)), 0);
+ ASSERT_STREQ(name_buf, session_name);
+
+ ASSERT_EQ(close(session_fd), 0);
+}
+
+/*
+ * Test Case: Get Session Name at Maximum Length
+ *
+ * Verifies that a session name using the full LIVEUPDATE_SESSION_NAME_LENGTH
+ * (minus the null terminator) can be correctly retrieved.
+ */
+TEST_F(liveupdate_device, get_session_name_max_length)
+{
+ char name_buf[LIVEUPDATE_SESSION_NAME_LENGTH] = {};
+ char long_name[LIVEUPDATE_SESSION_NAME_LENGTH];
+ int session_fd;
+
+ memset(long_name, 'A', sizeof(long_name) - 1);
+ long_name[sizeof(long_name) - 1] = '\0';
+
+ self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+ if (self->fd1 < 0 && errno == ENOENT)
+ SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+ ASSERT_GE(self->fd1, 0);
+
+ session_fd = create_session(self->fd1, long_name);
+ ASSERT_GE(session_fd, 0);
+
+ ASSERT_EQ(get_session_name(session_fd, name_buf, sizeof(name_buf)), 0);
+ ASSERT_STREQ(name_buf, long_name);
+
+ ASSERT_EQ(close(session_fd), 0);
+}
+
TEST_HARNESS_MAIN
--
2.47.3