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// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#define __SANE_USERSPACE_TYPES__
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>
#include "../kselftest_harness.h"
#include "overlayfs/wrappers.h"
TEST(anon_inode_no_chown)
{
int fd_context;
fd_context = sys_fsopen("tmpfs", 0);
ASSERT_GE(fd_context, 0);
ASSERT_LT(fchown(fd_context, 1234, 5678), 0);
ASSERT_EQ(errno, EOPNOTSUPP);
EXPECT_EQ(close(fd_context), 0);
}
TEST(anon_inode_no_chmod)
{
int fd_context;
fd_context = sys_fsopen("tmpfs", 0);
ASSERT_GE(fd_context, 0);
ASSERT_LT(fchmod(fd_context, 0777), 0);
ASSERT_EQ(errno, EOPNOTSUPP);
EXPECT_EQ(close(fd_context), 0);
}
TEST(anon_inode_no_exec)
{
int fd_context;
fd_context = sys_fsopen("tmpfs", 0);
ASSERT_GE(fd_context, 0);
ASSERT_LT(execveat(fd_context, "", NULL, NULL, AT_EMPTY_PATH), 0);
ASSERT_EQ(errno, EACCES);
EXPECT_EQ(close(fd_context), 0);
}
TEST(anon_inode_no_open)
{
int fd_context;
fd_context = sys_fsopen("tmpfs", 0);
ASSERT_GE(fd_context, 0);
ASSERT_GE(dup2(fd_context, 500), 0);
ASSERT_EQ(close(fd_context), 0);
fd_context = 500;
ASSERT_LT(open("/proc/self/fd/500", 0), 0);
ASSERT_EQ(errno, ENXIO);
EXPECT_EQ(close(fd_context), 0);
}
TEST_HARNESS_MAIN
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