stat.c (ead5d1f4d877e92c051e1a1ade623d0d30e71619) stat.c (da9aa5d96bfe49e903ce2bc01cfb8a776c2619e9)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/stat.c
4 *
5 * Copyright (C) 1991, 1992 Linus Torvalds
6 */
7
8#include <linux/export.h>

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121 retval = security_inode_getattr(path);
122 if (retval)
123 return retval;
124 return vfs_getattr_nosec(path, stat, request_mask, query_flags);
125}
126EXPORT_SYMBOL(vfs_getattr);
127
128/**
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/fs/stat.c
4 *
5 * Copyright (C) 1991, 1992 Linus Torvalds
6 */
7
8#include <linux/export.h>

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121 retval = security_inode_getattr(path);
122 if (retval)
123 return retval;
124 return vfs_getattr_nosec(path, stat, request_mask, query_flags);
125}
126EXPORT_SYMBOL(vfs_getattr);
127
128/**
129 * vfs_statx_fd - Get the enhanced basic attributes by file descriptor
129 * vfs_fstat - Get the basic attributes by file descriptor
130 * @fd: The file descriptor referring to the file of interest
131 * @stat: The result structure to fill in.
130 * @fd: The file descriptor referring to the file of interest
131 * @stat: The result structure to fill in.
132 * @request_mask: STATX_xxx flags indicating what the caller wants
133 * @query_flags: Query mode (KSTAT_QUERY_FLAGS)
134 *
135 * This function is a wrapper around vfs_getattr(). The main difference is
136 * that it uses a file descriptor to determine the file location.
137 *
138 * 0 will be returned on success, and a -ve error code if unsuccessful.
139 */
132 *
133 * This function is a wrapper around vfs_getattr(). The main difference is
134 * that it uses a file descriptor to determine the file location.
135 *
136 * 0 will be returned on success, and a -ve error code if unsuccessful.
137 */
140int vfs_statx_fd(unsigned int fd, struct kstat *stat,
141 u32 request_mask, unsigned int query_flags)
138int vfs_fstat(int fd, struct kstat *stat)
142{
143 struct fd f;
139{
140 struct fd f;
144 int error = -EBADF;
141 int error;
145
142
146 if (query_flags & ~KSTAT_QUERY_FLAGS)
147 return -EINVAL;
148
149 f = fdget_raw(fd);
143 f = fdget_raw(fd);
150 if (f.file) {
151 error = vfs_getattr(&f.file->f_path, stat,
152 request_mask, query_flags);
153 fdput(f);
154 }
144 if (!f.file)
145 return -EBADF;
146 error = vfs_getattr(&f.file->f_path, stat, STATX_BASIC_STATS, 0);
147 fdput(f);
155 return error;
156}
148 return error;
149}
157EXPORT_SYMBOL(vfs_statx_fd);
158
159static inline unsigned vfs_stat_set_lookup_flags(unsigned *lookup_flags,
160 int flags)
161{
162 if ((flags & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT |
163 AT_EMPTY_PATH | KSTAT_QUERY_FLAGS)) != 0)
164 return -EINVAL;
165

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151static inline unsigned vfs_stat_set_lookup_flags(unsigned *lookup_flags,
152 int flags)
153{
154 if ((flags & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT |
155 AT_EMPTY_PATH | KSTAT_QUERY_FLAGS)) != 0)
156 return -EINVAL;
157

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