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Diffstat (limited to 'src/kernel/tests/include/lapi/fsmount.h')
-rw-r--r-- | src/kernel/tests/include/lapi/fsmount.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/kernel/tests/include/lapi/fsmount.h b/src/kernel/tests/include/lapi/fsmount.h new file mode 100644 index 0000000..09a2c16 --- /dev/null +++ b/src/kernel/tests/include/lapi/fsmount.h @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2020 Linaro Limited. All rights reserved. + * Author: Viresh Kumar <viresh.kumar@linaro.org> + */ + +#ifndef FSMOUNT_H__ +#define FSMOUNT_H__ + +#include <sys/mount.h> +#include <sys/syscall.h> +#include <sys/types.h> + +#include "config.h" +#include "lapi/fcntl.h" +#include "lapi/syscalls.h" + +#ifndef HAVE_FSOPEN +int fsopen(const char *fsname, unsigned int flags) +{ + return tst_syscall(__NR_fsopen, fsname, flags); +} +#endif /* HAVE_FSOPEN */ + +#ifndef HAVE_FSCONFIG +int fsconfig(int fd, unsigned int cmd, const char *key, + const void *value, int aux) +{ + return tst_syscall(__NR_fsconfig, fd, cmd, key, value, aux); +} +#endif /* HAVE_FSCONFIG */ + +#ifndef HAVE_FSMOUNT +int fsmount(int fd, unsigned int flags, unsigned int mount_attrs) +{ + return tst_syscall(__NR_fsmount, fd, flags, mount_attrs); +} +#endif /* HAVE_FSMOUNT */ + +#ifndef HAVE_FSPICK +int fspick(int dirfd, const char *pathname, unsigned int flags) +{ + return tst_syscall(__NR_fspick, dirfd, pathname, flags); +} +#endif /* HAVE_FSPICK */ + +#ifndef HAVE_MOVE_MOUNT +int move_mount(int from_dirfd, const char *from_pathname, int to_dirfd, + const char *to_pathname, unsigned int flags) +{ + return tst_syscall(__NR_move_mount, from_dirfd, from_pathname, to_dirfd, + to_pathname, flags); +} +#endif /* HAVE_MOVE_MOUNT */ + +#ifndef HAVE_OPEN_TREE +int open_tree(int dirfd, const char *pathname, unsigned int flags) +{ + return tst_syscall(__NR_open_tree, dirfd, pathname, flags); +} +#endif /* HAVE_OPEN_TREE */ + +/* + * New headers added in kernel after 5.2 release, create them for old userspace. +*/ + +#ifndef OPEN_TREE_CLONE + +/* + * open_tree() flags. + */ +#define OPEN_TREE_CLONE 1 /* Clone the target tree and attach the clone */ +#define OPEN_TREE_CLOEXEC O_CLOEXEC /* Close the file on execve() */ + +/* + * move_mount() flags. + */ +#define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ +#define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ +#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ +#define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ +#define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ +#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ +#define MOVE_MOUNT__MASK 0x00000077 + +/* + * fsopen() flags. + */ +#define FSOPEN_CLOEXEC 0x00000001 + +/* + * fspick() flags. + */ +#define FSPICK_CLOEXEC 0x00000001 +#define FSPICK_SYMLINK_NOFOLLOW 0x00000002 +#define FSPICK_NO_AUTOMOUNT 0x00000004 +#define FSPICK_EMPTY_PATH 0x00000008 + +/* + * The type of fsconfig() call made. + */ +enum fsconfig_command { + FSCONFIG_SET_FLAG = 0, /* Set parameter, supplying no value */ + FSCONFIG_SET_STRING = 1, /* Set parameter, supplying a string value */ + FSCONFIG_SET_BINARY = 2, /* Set parameter, supplying a binary blob value */ + FSCONFIG_SET_PATH = 3, /* Set parameter, supplying an object by path */ + FSCONFIG_SET_PATH_EMPTY = 4, /* Set parameter, supplying an object by (empty) path */ + FSCONFIG_SET_FD = 5, /* Set parameter, supplying an object by fd */ + FSCONFIG_CMD_CREATE = 6, /* Invoke superblock creation */ + FSCONFIG_CMD_RECONFIGURE = 7, /* Invoke superblock reconfiguration */ +}; + +/* + * fsmount() flags. + */ +#define FSMOUNT_CLOEXEC 0x00000001 + +/* + * Mount attributes. + */ +#define MOUNT_ATTR_RDONLY 0x00000001 /* Mount read-only */ +#define MOUNT_ATTR_NOSUID 0x00000002 /* Ignore suid and sgid bits */ +#define MOUNT_ATTR_NODEV 0x00000004 /* Disallow access to device special files */ +#define MOUNT_ATTR_NOEXEC 0x00000008 /* Disallow program execution */ +#define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated */ +#define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ +#define MOUNT_ATTR_NOATIME 0x00000010 /* - Do not update access times. */ +#define MOUNT_ATTR_STRICTATIME 0x00000020 /* - Always perform atime updates */ +#define MOUNT_ATTR_NODIRATIME 0x00000080 /* Do not update directory access times */ + +#endif /* OPEN_TREE_CLONE */ + +void fsopen_supported_by_kernel(void) +{ + if ((tst_kvercmp(5, 2, 0)) < 0) { + /* Check if the syscall is backported on an older kernel */ + TEST(syscall(__NR_fsopen, NULL, 0)); + if (TST_RET != -1) + SAFE_CLOSE(TST_RET); + else if (TST_ERR == ENOSYS) + tst_brk(TCONF, "Test not supported on kernel version < v5.2"); + } +} + +#endif /* FSMOUNT_H__ */ |