diff options
Diffstat (limited to 'tools/testing/selftests/pidfd/pidfd_setattr_test.c')
-rw-r--r-- | tools/testing/selftests/pidfd/pidfd_setattr_test.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tools/testing/selftests/pidfd/pidfd_setattr_test.c b/tools/testing/selftests/pidfd/pidfd_setattr_test.c new file mode 100644 index 000000000000..d7de05edc4b3 --- /dev/null +++ b/tools/testing/selftests/pidfd/pidfd_setattr_test.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <linux/types.h> +#include <poll.h> +#include <pthread.h> +#include <sched.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <syscall.h> +#include <sys/prctl.h> +#include <sys/wait.h> +#include <unistd.h> +#include <sys/socket.h> +#include <linux/kcmp.h> +#include <sys/stat.h> +#include <sys/xattr.h> + +#include "pidfd.h" +#include "../kselftest_harness.h" + +FIXTURE(pidfs_setattr) +{ + pid_t child_pid; + int child_pidfd; +}; + +FIXTURE_SETUP(pidfs_setattr) +{ + self->child_pid = create_child(&self->child_pidfd, CLONE_NEWUSER | CLONE_NEWPID); + EXPECT_GE(self->child_pid, 0); + + if (self->child_pid == 0) + _exit(EXIT_SUCCESS); +} + +FIXTURE_TEARDOWN(pidfs_setattr) +{ + sys_waitid(P_PID, self->child_pid, NULL, WEXITED); + EXPECT_EQ(close(self->child_pidfd), 0); +} + +TEST_F(pidfs_setattr, no_chown) +{ + ASSERT_LT(fchown(self->child_pidfd, 1234, 5678), 0); + ASSERT_EQ(errno, EOPNOTSUPP); +} + +TEST_F(pidfs_setattr, no_chmod) +{ + ASSERT_LT(fchmod(self->child_pidfd, 0777), 0); + ASSERT_EQ(errno, EOPNOTSUPP); +} + +TEST_F(pidfs_setattr, no_exec) +{ + char *const argv[] = { NULL }; + char *const envp[] = { NULL }; + + ASSERT_LT(execveat(self->child_pidfd, "", argv, envp, AT_EMPTY_PATH), 0); + ASSERT_EQ(errno, EACCES); +} + +TEST_HARNESS_MAIN |