summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/pidfd
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/pidfd')
-rw-r--r--tools/testing/selftests/pidfd/pidfd.h17
-rw-r--r--tools/testing/selftests/pidfd/pidfd_bind_mount.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_fdinfo_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_file_handle_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_getfd_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_info_test.c75
-rw-r--r--tools/testing/selftests/pidfd/pidfd_open_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_poll_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_setattr_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_setns_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_test.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_wait.c2
-rw-r--r--tools/testing/selftests/pidfd/pidfd_xattr_test.c2
13 files changed, 99 insertions, 15 deletions
diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
index f87993def738..9085c1a3c005 100644
--- a/tools/testing/selftests/pidfd/pidfd.h
+++ b/tools/testing/selftests/pidfd/pidfd.h
@@ -25,7 +25,7 @@
#undef SCHED_FLAG_KEEP_ALL
#undef SCHED_FLAG_UTIL_CLAMP
-#include "../kselftest.h"
+#include "kselftest.h"
#include "../clone3/clone3_selftests.h"
#ifndef FD_PIDFS_ROOT
@@ -148,6 +148,14 @@
#define PIDFD_INFO_COREDUMP (1UL << 4)
#endif
+#ifndef PIDFD_INFO_SUPPORTED_MASK
+#define PIDFD_INFO_SUPPORTED_MASK (1UL << 5)
+#endif
+
+#ifndef PIDFD_INFO_COREDUMP_SIGNAL
+#define PIDFD_INFO_COREDUMP_SIGNAL (1UL << 6)
+#endif
+
#ifndef PIDFD_COREDUMPED
#define PIDFD_COREDUMPED (1U << 0) /* Did crash and... */
#endif
@@ -183,8 +191,11 @@ struct pidfd_info {
__u32 fsuid;
__u32 fsgid;
__s32 exit_code;
- __u32 coredump_mask;
- __u32 __spare1;
+ struct {
+ __u32 coredump_mask;
+ __u32 coredump_signal;
+ };
+ __u64 supported_mask;
};
/*
diff --git a/tools/testing/selftests/pidfd/pidfd_bind_mount.c b/tools/testing/selftests/pidfd/pidfd_bind_mount.c
index c094aeb1c620..1fdf49939524 100644
--- a/tools/testing/selftests/pidfd/pidfd_bind_mount.c
+++ b/tools/testing/selftests/pidfd/pidfd_bind_mount.c
@@ -14,7 +14,7 @@
#include <unistd.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
#include "../filesystems/wrappers.h"
FIXTURE(pidfd_bind_mount) {
diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
index f718aac75068..9935e9471c77 100644
--- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
@@ -16,7 +16,7 @@
#include <sys/mount.h>
#include "pidfd.h"
-#include "../kselftest.h"
+#include "kselftest.h"
struct error {
int code;
diff --git a/tools/testing/selftests/pidfd/pidfd_file_handle_test.c b/tools/testing/selftests/pidfd/pidfd_file_handle_test.c
index 6bd2e9c9565b..68918734dcf3 100644
--- a/tools/testing/selftests/pidfd/pidfd_file_handle_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_file_handle_test.c
@@ -20,7 +20,7 @@
#include <sys/stat.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
FIXTURE(file_handle)
{
diff --git a/tools/testing/selftests/pidfd/pidfd_getfd_test.c b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
index cd51d547b751..ea45b37001b0 100644
--- a/tools/testing/selftests/pidfd/pidfd_getfd_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
@@ -19,7 +19,7 @@
#include <linux/kcmp.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
/*
* UNKNOWN_FD is an fd number that should never exist in the child, as it is
diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c
index a0eb6e81eaa2..6571e04acd88 100644
--- a/tools/testing/selftests/pidfd/pidfd_info_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_info_test.c
@@ -21,7 +21,7 @@
#include <sys/stat.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
FIXTURE(pidfd_info)
{
@@ -690,4 +690,77 @@ TEST_F(pidfd_info, thread_group_exec_thread)
EXPECT_EQ(close(pidfd_thread), 0);
}
+/*
+ * Test: PIDFD_INFO_SUPPORTED_MASK field
+ *
+ * Verify that when PIDFD_INFO_SUPPORTED_MASK is requested, the kernel
+ * returns the supported_mask field indicating which flags the kernel supports.
+ */
+TEST(supported_mask_field)
+{
+ struct pidfd_info info = {
+ .mask = PIDFD_INFO_SUPPORTED_MASK,
+ };
+ int pidfd;
+ pid_t pid;
+
+ pid = create_child(&pidfd, 0);
+ ASSERT_GE(pid, 0);
+
+ if (pid == 0)
+ pause();
+
+ /* Request supported_mask field */
+ ASSERT_EQ(ioctl(pidfd, PIDFD_GET_INFO, &info), 0);
+
+ /* Verify PIDFD_INFO_SUPPORTED_MASK is set in the reply */
+ ASSERT_TRUE(!!(info.mask & PIDFD_INFO_SUPPORTED_MASK));
+
+ /* Verify supported_mask contains expected flags */
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_PID));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_CREDS));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_CGROUPID));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_EXIT));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_COREDUMP));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_SUPPORTED_MASK));
+ ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_COREDUMP_SIGNAL));
+
+ /* Clean up */
+ sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0);
+ sys_waitid(P_PIDFD, pidfd, NULL, WEXITED);
+ close(pidfd);
+}
+
+/*
+ * Test: PIDFD_INFO_SUPPORTED_MASK always available
+ *
+ * Verify that supported_mask is returned even when other fields are requested.
+ */
+TEST(supported_mask_with_other_fields)
+{
+ struct pidfd_info info = {
+ .mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_SUPPORTED_MASK,
+ };
+ int pidfd;
+ pid_t pid;
+
+ pid = create_child(&pidfd, 0);
+ ASSERT_GE(pid, 0);
+
+ if (pid == 0)
+ pause();
+
+ ASSERT_EQ(ioctl(pidfd, PIDFD_GET_INFO, &info), 0);
+
+ /* Both fields should be present */
+ ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CGROUPID));
+ ASSERT_TRUE(!!(info.mask & PIDFD_INFO_SUPPORTED_MASK));
+ ASSERT_NE(info.supported_mask, 0);
+
+ /* Clean up */
+ sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0);
+ sys_waitid(P_PIDFD, pidfd, NULL, WEXITED);
+ close(pidfd);
+}
+
TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c
index cd3de40e4977..318e6f09c8e0 100644
--- a/tools/testing/selftests/pidfd/pidfd_open_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_open_test.c
@@ -20,7 +20,7 @@
#include <unistd.h>
#include "pidfd.h"
-#include "../kselftest.h"
+#include "kselftest.h"
static int safe_int(const char *numstr, int *converted)
{
diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c
index 55d74a50358f..232304f818c7 100644
--- a/tools/testing/selftests/pidfd/pidfd_poll_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c
@@ -14,7 +14,7 @@
#include <unistd.h>
#include "pidfd.h"
-#include "../kselftest.h"
+#include "kselftest.h"
static bool timeout;
diff --git a/tools/testing/selftests/pidfd/pidfd_setattr_test.c b/tools/testing/selftests/pidfd/pidfd_setattr_test.c
index d7de05edc4b3..e8562a2992f3 100644
--- a/tools/testing/selftests/pidfd/pidfd_setattr_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_setattr_test.c
@@ -22,7 +22,7 @@
#include <sys/xattr.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
FIXTURE(pidfs_setattr)
{
diff --git a/tools/testing/selftests/pidfd/pidfd_setns_test.c b/tools/testing/selftests/pidfd/pidfd_setns_test.c
index e6a079b3d5e2..107edecff224 100644
--- a/tools/testing/selftests/pidfd/pidfd_setns_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_setns_test.c
@@ -18,7 +18,7 @@
#include <sys/stat.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
enum {
PIDFD_NS_USER,
diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
index fcd85cad9f18..932cbd8caa77 100644
--- a/tools/testing/selftests/pidfd/pidfd_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_test.c
@@ -20,7 +20,7 @@
#include <unistd.h>
#include "pidfd.h"
-#include "../kselftest.h"
+#include "kselftest.h"
#define str(s) _str(s)
#define _str(s) #s
diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
index 1e2d49751cde..4bf702d62c1c 100644
--- a/tools/testing/selftests/pidfd/pidfd_wait.c
+++ b/tools/testing/selftests/pidfd/pidfd_wait.c
@@ -17,7 +17,7 @@
#include <unistd.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
#define ptr_to_u64(ptr) ((__u64)((uintptr_t)(ptr)))
diff --git a/tools/testing/selftests/pidfd/pidfd_xattr_test.c b/tools/testing/selftests/pidfd/pidfd_xattr_test.c
index 5cf7bb0e4bf2..fd57511af7e4 100644
--- a/tools/testing/selftests/pidfd/pidfd_xattr_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_xattr_test.c
@@ -22,7 +22,7 @@
#include <sys/xattr.h>
#include "pidfd.h"
-#include "../kselftest_harness.h"
+#include "kselftest_harness.h"
FIXTURE(pidfs_xattr)
{
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-07 13:49:58 +0000