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// 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
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