//SPDX-License-Identifier: GPL-2.0-or-later /* * Referred from linux kernel -github/torvalds/linux/include/uapi/linux/fcntl.h * Copyright (c) Zilogic Systems Pvt. Ltd., 2018 * Email: code@zilogic.com */ #ifndef LAPI_STAT_H__ #define LAPI_STAT_H__ #include #include #include #include "lapi/syscalls.h" /* * Timestamp structure for the timestamps in struct statx. * * tv_sec holds the number of seconds before (negative) or after (positive) * 00:00:00 1st January 1970 UTC. * * tv_nsec holds a number of nanoseconds (0..999,999,999) after the tv_sec time. * * __reserved is held in case we need a yet finer resolution. */ #ifndef HAVE_STRUCT_STATX_TIMESTAMP struct statx_timestamp { int64_t tv_sec; uint32_t tv_nsec; int32_t __reserved; }; #endif /* * Structures for the extended file attribute retrieval system call * (statx()). * * The caller passes a mask of what they're specifically interested in as a * parameter to statx(). What statx() actually got will be indicated in * st_mask upon return. * * For each bit in the mask argument: * * - if the datum is not supported: * * - the bit will be cleared, and * * - the datum will be set to an appropriate fabricated value if one is * available (eg. CIFS can take a default uid and gid), otherwise * * - the field will be cleared; * * - otherwise, if explicitly requested: * * - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is * set or if the datum is considered out of date, and * * - the field will be filled in and the bit will be set; * * - otherwise, if not requested, but available in approximate form without any * effort, it will be filled in anyway, and the bit will be set upon return * (it might not be up to date, however, and no attempt will be made to * synchronise the internal state first); * * - otherwise the field and the bit will be cleared before returning. * * Items in STATX_BASIC_STATS may be marked unavailable on return, but they * will have values installed for compatibility purposes so that stat() and * co. can be emulated in userspace. */ #define LTP_DEFINE_STATX_STRUCT(x) \ struct x { \ uint32_t stx_mask; \ uint32_t stx_blksize; \ uint64_t stx_attributes; \ uint32_t stx_nlink; \ uint32_t stx_uid; \ uint32_t stx_gid; \ uint16_t stx_mode; \ uint16_t __spare0[1]; \ uint64_t stx_ino; \ uint64_t stx_size; \ uint64_t stx_blocks; \ uint64_t stx_attributes_mask; \ const struct statx_timestamp stx_atime; \ const struct statx_timestamp stx_btime; \ const struct statx_timestamp stx_ctime; \ const struct statx_timestamp stx_mtime; \ uint32_t stx_rdev_major; \ uint32_t stx_rdev_minor; \ uint32_t stx_dev_major; \ uint32_t stx_dev_minor; \ uint64_t stx_mnt_id; \ uint32_t stx_dio_mem_align; \ uint32_t stx_dio_offset_align; \ uint64_t __spare3[12]; \ }; LTP_DEFINE_STATX_STRUCT(statx_fallback); #ifndef HAVE_STRUCT_STATX LTP_DEFINE_STATX_STRUCT(statx); #endif /* * This is the fallback statx that we pass to the safe_statx() syscall. * The reason why we need it, is that statx struct is constantly changing * inside the kernel and we need to extend its definition when structure * changes in order to compile the tests. */ struct ltp_statx { union { struct statx buff; struct statx_fallback data; }; }; #ifndef HAVE_STATX /* * statx: wrapper function of statx * * Returns: It returns status of statx syscall */ static inline int statx(int dirfd, const char *pathname, unsigned int flags, unsigned int mask, struct statx *st) { return tst_syscall(__NR_statx, dirfd, pathname, flags, mask, st); } #endif /* * Flags to be stx_mask * * Query request/result mask for statx() and struct statx::stx_mask. * * These bits should be set in the mask argument of statx() to request * particular items when calling statx(). */ #ifndef STATX_TYPE # define STATX_TYPE 0x00000001U #endif #ifndef STATX_MODE # define STATX_MODE 0x00000002U #endif #ifndef STATX_NLINK # define STATX_NLINK 0x00000004U #endif #ifndef STATX_UID # define STATX_UID 0x00000008U #endif #ifndef STATX_GID # define STATX_GID 0x00000010U #endif #ifndef STATX_ATIME # define STATX_ATIME 0x00000020U #endif #ifndef STATX_MTIME # define STATX_MTIME 0x00000040U #endif #ifndef STATX_CTIME # define STATX_CTIME 0x00000080U #endif #ifndef STATX_INO # define STATX_INO 0x00000100U #endif #ifndef STATX_SIZE # define STATX_SIZE 0x00000200U #endif #ifndef STATX_BLOCKS # define STATX_BLOCKS 0x00000400U #endif #ifndef STATX_BASIC_STATS # define STATX_BASIC_STATS 0x000007ffU #endif #ifndef STATX_BTIME # define STATX_BTIME 0x00000800U #endif #ifndef STATX_MNT_ID # define STATX_MNT_ID 0x00001000U #endif #ifndef STATX_DIOALIGN # define STATX_DIOALIGN 0x00002000U #endif #ifndef STATX__RESERVED # define STATX__RESERVED 0x80000000U #endif /* * Attributes to be found in stx_attributes and masked in stx_attributes_mask. * * These give information about the features or the state of a file that might * be of use to ordinary userspace programs such as GUIs or ls rather than * specialised tools. * * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS * semantically. Where possible, the numerical value is picked to correspond * also. */ #ifndef STATX_ATTR_COMPRESSED # define STATX_ATTR_COMPRESSED 0x00000004 #endif #ifndef STATX_ATTR_IMMUTABLE # define STATX_ATTR_IMMUTABLE 0x00000010 #endif #ifndef STATX_ATTR_APPEND # define STATX_ATTR_APPEND 0x00000020 #endif #ifndef STATX_ATTR_NODUMP # define STATX_ATTR_NODUMP 0x00000040 #endif #ifndef STATX_ATTR_ENCRYPTED # define STATX_ATTR_ENCRYPTED 0x00000800 #endif #ifndef STATX_ATTR_AUTOMOUNT # define STATX_ATTR_AUTOMOUNT 0x00001000 #endif #ifndef STATX_ATTR_MOUNT_ROOT # define STATX_ATTR_MOUNT_ROOT 0x00002000 #endif #ifndef STATX_ATTR_VERITY # define STATX_ATTR_VERITY 0x00100000 #endif #ifndef STATX_MNT_ID_UNIQUE # define STATX_MNT_ID_UNIQUE 0x00004000U #endif #define SAFE_FCHMODAT2(dfd, filename, mode, flags) \ safe_fchmodat2(__FILE__, __LINE__, (dfd), (filename), (mode), (flags)) static inline int safe_fchmodat2(const char *file, const int lineno, int dfd, const char *filename, mode_t mode, int flags) { int ret; ret = tst_syscall(__NR_fchmodat2, dfd, filename, mode, flags); if (ret == -1) { tst_brk_(file, lineno, TBROK | TERRNO, "syscall(__NR_fchmodat2,%d,%s,%d,%d) failed", dfd, filename, mode, flags); } else if (ret) { tst_brk_(file, lineno, TBROK | TERRNO, "Invalid syscall(__NR_fchmodat2,%d,%s,%d,%d) return value %d", dfd, filename, mode, flags, ret); } return ret; } #define SAFE_STATX(dirfd, pathname, flags, mask, buf) \ safe_statx(__FILE__, __LINE__, (dirfd), (pathname), (flags), (mask), (buf)) static inline int safe_statx(const char *file, const int lineno, int dirfd, const char *pathname, int flags, unsigned int mask, struct ltp_statx *buf) { int rval; rval = statx(dirfd, pathname, flags, mask, &buf->buff); if (rval == -1) { tst_brk_(file, lineno, TBROK | TERRNO, "statx(%d,%s,%d,%u,%p) failed", dirfd, pathname, flags, mask, buf); } else if (rval) { tst_brk_(file, lineno, TBROK | TERRNO, "Invalid statx(%d,%s,%d,%u,%p) return value %d", dirfd, pathname, flags, mask, buf, rval); } return rval; } #endif /* LAPI_STAT_H__ */