From efeb864cb547a2cbf96dc0053a8bdb4d9190b364 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 12 Jun 2024 05:50:45 +0200 Subject: Merging upstream version 256. Signed-off-by: Daniel Baumann --- src/basic/stat-util.h | 62 ++++++++++++++++++++++++++++++++++++--------------- 1 file changed, 44 insertions(+), 18 deletions(-) (limited to 'src/basic/stat-util.h') diff --git a/src/basic/stat-util.h b/src/basic/stat-util.h index 3501406..7556f8f 100644 --- a/src/basic/stat-util.h +++ b/src/basic/stat-util.h @@ -9,18 +9,28 @@ #include #include +#include "fs-util.h" #include "macro.h" #include "missing_stat.h" #include "siphash24.h" +#include "time-util.h" +int stat_verify_regular(const struct stat *st); +int verify_regular_at(int fd, const char *path, bool follow); +int fd_verify_regular(int fd); + +int stat_verify_directory(const struct stat *st); +int fd_verify_directory(int fd); +int is_dir_at(int fd, const char *path, bool follow); +int is_dir(const char *path, bool follow); + +int stat_verify_symlink(const struct stat *st); int is_symlink(const char *path); -int is_dir_full(int atfd, const char *fname, bool follow); -static inline int is_dir(const char *path, bool follow) { - return is_dir_full(AT_FDCWD, path, follow); -} -static inline int is_dir_fd(int fd) { - return is_dir_full(fd, NULL, false); -} + +int stat_verify_linked(const struct stat *st); +int fd_verify_linked(int fd); + +int stat_verify_device_node(const struct stat *st); int is_device_node(const char *path); int dir_is_empty_at(int dir_fd, const char *path, bool ignore_hidden_or_backup); @@ -35,13 +45,16 @@ static inline int null_or_empty_path(const char *fn) { return null_or_empty_path_with_root(fn, NULL); } +int fd_is_read_only_fs(int fd); int path_is_read_only_fs(const char *path); int inode_same_at(int fda, const char *filea, int fdb, const char *fileb, int flags); - static inline int inode_same(const char *filea, const char *fileb, int flags) { return inode_same_at(AT_FDCWD, filea, AT_FDCWD, fileb, flags); } +static inline int fd_inode_same(int fda, int fdb) { + return inode_same_at(fda, NULL, fdb, NULL, AT_EMPTY_PATH); +} /* The .f_type field of struct statfs is really weird defined on * different archs. Let's give its type a name. */ @@ -71,16 +84,6 @@ int path_is_network_fs(const char *path); */ #define F_TYPE_EQUAL(a, b) (a == (typeof(a)) b) -int stat_verify_linked(const struct stat *st); -int fd_verify_linked(int fd); - -int stat_verify_regular(const struct stat *st); -int fd_verify_regular(int fd); -int verify_regular_at(int dir_fd, const char *path, bool follow); - -int stat_verify_directory(const struct stat *st); -int fd_verify_directory(int fd); - int proc_mounted(void); bool stat_inode_same(const struct stat *a, const struct stat *b); @@ -112,8 +115,31 @@ int xstatfsat(int dir_fd, const char *path, struct statfs *ret); } var #endif +static inline usec_t statx_timestamp_load(const struct statx_timestamp *ts) { + return timespec_load(&(const struct timespec) { .tv_sec = ts->tv_sec, .tv_nsec = ts->tv_nsec }); +} +static inline nsec_t statx_timestamp_load_nsec(const struct statx_timestamp *ts) { + return timespec_load_nsec(&(const struct timespec) { .tv_sec = ts->tv_sec, .tv_nsec = ts->tv_nsec }); +} + void inode_hash_func(const struct stat *q, struct siphash *state); int inode_compare_func(const struct stat *a, const struct stat *b); extern const struct hash_ops inode_hash_ops; const char* inode_type_to_string(mode_t m); +mode_t inode_type_from_string(const char *s); + +/* Macros that check whether the stat/statx structures have been initialized already. For "struct stat" we + * use a check for .st_dev being non-zero, since the kernel unconditionally fills that in, mapping the file + * to its originating superblock, regardless if the fs is block based or virtual (we also check for .st_mode + * being MODE_INVALID, since we use that as an invalid marker for separate mode_t fields). For "struct statx" + * we use the .stx_mask field, which must be non-zero if any of the fields have already been initialized. */ +static inline bool stat_is_set(const struct stat *st) { + return st && st->st_dev != 0 && st->st_mode != MODE_INVALID; +} +static inline bool statx_is_set(const struct statx *sx) { + return sx && sx->stx_mask != 0; +} +static inline bool new_statx_is_set(const struct new_statx *sx) { + return sx && sx->stx_mask != 0; +} -- cgit v1.2.3