aboutsummaryrefslogtreecommitdiffstats
path: root/fs/cifs/readdir.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/cifs/readdir.c')
-rw-r--r--fs/cifs/readdir.c505
1 files changed, 124 insertions, 381 deletions
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 86d0055dc529..f823a4a208a7 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -63,374 +63,123 @@ static inline void dump_cifs_file_struct(struct file *file, char *label)
63} 63}
64#endif /* DEBUG2 */ 64#endif /* DEBUG2 */
65 65
66/* Returns 1 if new inode created, 2 if both dentry and inode were */ 66/*
67/* Might check in the future if inode number changed so we can rehash inode */ 67 * Find the dentry that matches "name". If there isn't one, create one. If it's
68static int 68 * a negative dentry or the uniqueid changed, then drop it and recreate it.
69construct_dentry(struct qstr *qstring, struct file *file, 69 */
70 struct inode **ptmp_inode, struct dentry **pnew_dentry, 70static struct dentry *
71 __u64 *inum) 71cifs_readdir_lookup(struct dentry *parent, struct qstr *name,
72 struct cifs_fattr *fattr)
72{ 73{
73 struct dentry *tmp_dentry = NULL; 74 struct dentry *dentry, *alias;
74 struct super_block *sb = file->f_path.dentry->d_sb; 75 struct inode *inode;
75 int rc = 0; 76 struct super_block *sb = parent->d_inode->i_sb;
77
78 cFYI(1, ("For %s", name->name));
79
80 dentry = d_lookup(parent, name);
81 if (dentry) {
82 /* FIXME: check for inode number changes? */
83 if (dentry->d_inode != NULL)
84 return dentry;
85 d_drop(dentry);
86 dput(dentry);
87 }
76 88
77 cFYI(1, ("For %s", qstring->name)); 89 dentry = d_alloc(parent, name);
78 90 if (dentry == NULL)
79 qstring->hash = full_name_hash(qstring->name, qstring->len); 91 return NULL;
80 tmp_dentry = d_lookup(file->f_path.dentry, qstring);
81 if (tmp_dentry) {
82 /* BB: overwrite old name? i.e. tmp_dentry->d_name and
83 * tmp_dentry->d_name.len??
84 */
85 cFYI(0, ("existing dentry with inode 0x%p",
86 tmp_dentry->d_inode));
87 *ptmp_inode = tmp_dentry->d_inode;
88 if (*ptmp_inode == NULL) {
89 *ptmp_inode = cifs_new_inode(sb, inum);
90 if (*ptmp_inode == NULL)
91 return rc;
92 rc = 1;
93 }
94 } else {
95 tmp_dentry = d_alloc(file->f_path.dentry, qstring);
96 if (tmp_dentry == NULL) {
97 cERROR(1, ("Failed allocating dentry"));
98 *ptmp_inode = NULL;
99 return rc;
100 }
101 92
102 if (CIFS_SB(sb)->tcon->nocase) 93 inode = cifs_iget(sb, fattr);
103 tmp_dentry->d_op = &cifs_ci_dentry_ops; 94 if (!inode) {
104 else 95 dput(dentry);
105 tmp_dentry->d_op = &cifs_dentry_ops; 96 return NULL;
97 }
106 98
107 *ptmp_inode = cifs_new_inode(sb, inum); 99 if (CIFS_SB(sb)->tcon->nocase)
108 if (*ptmp_inode == NULL) 100 dentry->d_op = &cifs_ci_dentry_ops;
109 return rc; 101 else
110 rc = 2; 102 dentry->d_op = &cifs_dentry_ops;
103
104 alias = d_materialise_unique(dentry, inode);
105 if (alias != NULL) {
106 dput(dentry);
107 if (IS_ERR(alias))
108 return NULL;
109 dentry = alias;
111 } 110 }
112 111
113 tmp_dentry->d_time = jiffies; 112 return dentry;
114 *pnew_dentry = tmp_dentry;
115 return rc;
116} 113}
117 114
118static void fill_in_inode(struct inode *tmp_inode, int new_buf_type, 115static void
119 char *buf, unsigned int *pobject_type, int isNewInode) 116cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
120{ 117{
121 loff_t local_size; 118 fattr->cf_uid = cifs_sb->mnt_uid;
122 struct timespec local_mtime; 119 fattr->cf_gid = cifs_sb->mnt_gid;
123
124 struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
125 struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
126 __u32 attr;
127 __u64 allocation_size;
128 __u64 end_of_file;
129 umode_t default_mode;
130
131 /* save mtime and size */
132 local_mtime = tmp_inode->i_mtime;
133 local_size = tmp_inode->i_size;
134
135 if (new_buf_type) {
136 FILE_DIRECTORY_INFO *pfindData = (FILE_DIRECTORY_INFO *)buf;
137
138 attr = le32_to_cpu(pfindData->ExtFileAttributes);
139 allocation_size = le64_to_cpu(pfindData->AllocationSize);
140 end_of_file = le64_to_cpu(pfindData->EndOfFile);
141 tmp_inode->i_atime =
142 cifs_NTtimeToUnix(pfindData->LastAccessTime);
143 tmp_inode->i_mtime =
144 cifs_NTtimeToUnix(pfindData->LastWriteTime);
145 tmp_inode->i_ctime =
146 cifs_NTtimeToUnix(pfindData->ChangeTime);
147 } else { /* legacy, OS2 and DOS style */
148 int offset = cifs_sb->tcon->ses->server->timeAdj;
149 FIND_FILE_STANDARD_INFO *pfindData =
150 (FIND_FILE_STANDARD_INFO *)buf;
151
152 tmp_inode->i_mtime = cnvrtDosUnixTm(pfindData->LastWriteDate,
153 pfindData->LastWriteTime,
154 offset);
155 tmp_inode->i_atime = cnvrtDosUnixTm(pfindData->LastAccessDate,
156 pfindData->LastAccessTime,
157 offset);
158 tmp_inode->i_ctime = cnvrtDosUnixTm(pfindData->LastWriteDate,
159 pfindData->LastWriteTime,
160 offset);
161 attr = le16_to_cpu(pfindData->Attributes);
162 allocation_size = le32_to_cpu(pfindData->AllocationSize);
163 end_of_file = le32_to_cpu(pfindData->DataSize);
164 }
165 120
166 /* Linux can not store file creation time unfortunately so ignore it */ 121 if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
167 122 fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
168 cifsInfo->cifsAttrs = attr; 123 fattr->cf_dtype = DT_DIR;
169#ifdef CONFIG_CIFS_EXPERIMENTAL 124 } else {
170 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) { 125 fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
171 /* get more accurate mode via ACL - so force inode refresh */ 126 fattr->cf_dtype = DT_REG;
172 cifsInfo->time = 0;
173 } else
174#endif /* CONFIG_CIFS_EXPERIMENTAL */
175 cifsInfo->time = jiffies;
176
177 /* treat dos attribute of read-only as read-only mode bit e.g. 555? */
178 /* 2767 perms - indicate mandatory locking */
179 /* BB fill in uid and gid here? with help from winbind?
180 or retrieve from NTFS stream extended attribute */
181 if (atomic_read(&cifsInfo->inUse) == 0) {
182 tmp_inode->i_uid = cifs_sb->mnt_uid;
183 tmp_inode->i_gid = cifs_sb->mnt_gid;
184 }
185
186 if (attr & ATTR_DIRECTORY)
187 default_mode = cifs_sb->mnt_dir_mode;
188 else
189 default_mode = cifs_sb->mnt_file_mode;
190
191 /* set initial permissions */
192 if ((atomic_read(&cifsInfo->inUse) == 0) ||
193 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
194 tmp_inode->i_mode = default_mode;
195 else {
196 /* just reenable write bits if !ATTR_READONLY */
197 if ((tmp_inode->i_mode & S_IWUGO) == 0 &&
198 (attr & ATTR_READONLY) == 0)
199 tmp_inode->i_mode |= (S_IWUGO & default_mode);
200
201 tmp_inode->i_mode &= ~S_IFMT;
202 } 127 }
203 128
204 /* clear write bits if ATTR_READONLY is set */ 129 if (fattr->cf_cifsattrs & ATTR_READONLY)
205 if (attr & ATTR_READONLY) 130 fattr->cf_mode &= ~S_IWUGO;
206 tmp_inode->i_mode &= ~S_IWUGO;
207 131
208 /* set inode type */ 132 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL &&
209 if ((attr & ATTR_SYSTEM) && 133 fattr->cf_cifsattrs & ATTR_SYSTEM) {
210 (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL)) { 134 if (fattr->cf_eof == 0) {
211 if (end_of_file == 0) { 135 fattr->cf_mode &= ~S_IFMT;
212 tmp_inode->i_mode |= S_IFIFO; 136 fattr->cf_mode |= S_IFIFO;
213 *pobject_type = DT_FIFO; 137 fattr->cf_dtype = DT_FIFO;
214 } else { 138 } else {
215 /* 139 /*
216 * trying to get the type can be slow, so just call 140 * trying to get the type and mode via SFU can be slow,
217 * this a regular file for now, and mark for reval 141 * so just call those regular files for now, and mark
142 * for reval
218 */ 143 */
219 tmp_inode->i_mode |= S_IFREG; 144 fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
220 *pobject_type = DT_REG;
221 cifsInfo->time = 0;
222 }
223 } else {
224 if (attr & ATTR_DIRECTORY) {
225 tmp_inode->i_mode |= S_IFDIR;
226 *pobject_type = DT_DIR;
227 } else {
228 tmp_inode->i_mode |= S_IFREG;
229 *pobject_type = DT_REG;
230 } 145 }
231 } 146 }
147}
232 148
233 /* can not fill in nlink here as in qpathinfo version and Unx search */ 149void
234 if (atomic_read(&cifsInfo->inUse) == 0) 150cifs_dir_info_to_fattr(struct cifs_fattr *fattr, FILE_DIRECTORY_INFO *info,
235 atomic_set(&cifsInfo->inUse, 1); 151 struct cifs_sb_info *cifs_sb)
236 152{
237 cifsInfo->server_eof = end_of_file; 153 memset(fattr, 0, sizeof(*fattr));
238 spin_lock(&tmp_inode->i_lock); 154 fattr->cf_cifsattrs = le32_to_cpu(info->ExtFileAttributes);
239 if (is_size_safe_to_change(cifsInfo, end_of_file)) { 155 fattr->cf_eof = le64_to_cpu(info->EndOfFile);
240 /* can not safely change the file size here if the 156 fattr->cf_bytes = le64_to_cpu(info->AllocationSize);
241 client is writing to it due to potential races */ 157 fattr->cf_atime = cifs_NTtimeToUnix(info->LastAccessTime);
242 i_size_write(tmp_inode, end_of_file); 158 fattr->cf_ctime = cifs_NTtimeToUnix(info->ChangeTime);
243 159 fattr->cf_mtime = cifs_NTtimeToUnix(info->LastWriteTime);
244 /* 512 bytes (2**9) is the fake blocksize that must be used */ 160
245 /* for this calculation, even though the reported blocksize is larger */ 161 cifs_fill_common_info(fattr, cifs_sb);
246 tmp_inode->i_blocks = (512 - 1 + allocation_size) >> 9;
247 }
248 spin_unlock(&tmp_inode->i_lock);
249
250 if (allocation_size < end_of_file)
251 cFYI(1, ("May be sparse file, allocation less than file size"));
252 cFYI(1, ("File Size %ld and blocks %llu",
253 (unsigned long)tmp_inode->i_size,
254 (unsigned long long)tmp_inode->i_blocks));
255 if (S_ISREG(tmp_inode->i_mode)) {
256 cFYI(1, ("File inode"));
257 tmp_inode->i_op = &cifs_file_inode_ops;
258 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
259 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
260 tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
261 else
262 tmp_inode->i_fop = &cifs_file_direct_ops;
263 } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
264 tmp_inode->i_fop = &cifs_file_nobrl_ops;
265 else
266 tmp_inode->i_fop = &cifs_file_ops;
267
268 if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
269 (cifs_sb->tcon->ses->server->maxBuf <
270 PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
271 tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
272 else
273 tmp_inode->i_data.a_ops = &cifs_addr_ops;
274
275 if (isNewInode)
276 return; /* No sense invalidating pages for new inode
277 since have not started caching readahead file
278 data yet */
279
280 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
281 (local_size == tmp_inode->i_size)) {
282 cFYI(1, ("inode exists but unchanged"));
283 } else {
284 /* file may have changed on server */
285 cFYI(1, ("invalidate inode, readdir detected change"));
286 invalidate_remote_inode(tmp_inode);
287 }
288 } else if (S_ISDIR(tmp_inode->i_mode)) {
289 cFYI(1, ("Directory inode"));
290 tmp_inode->i_op = &cifs_dir_inode_ops;
291 tmp_inode->i_fop = &cifs_dir_ops;
292 } else if (S_ISLNK(tmp_inode->i_mode)) {
293 cFYI(1, ("Symbolic Link inode"));
294 tmp_inode->i_op = &cifs_symlink_inode_ops;
295 } else {
296 cFYI(1, ("Init special inode"));
297 init_special_inode(tmp_inode, tmp_inode->i_mode,
298 tmp_inode->i_rdev);
299 }
300} 162}
301 163
302static void unix_fill_in_inode(struct inode *tmp_inode, 164void
303 FILE_UNIX_INFO *pfindData, unsigned int *pobject_type, int isNewInode) 165cifs_std_info_to_fattr(struct cifs_fattr *fattr, FIND_FILE_STANDARD_INFO *info,
166 struct cifs_sb_info *cifs_sb)
304{ 167{
305 loff_t local_size; 168 int offset = cifs_sb->tcon->ses->server->timeAdj;
306 struct timespec local_mtime;
307
308 struct cifsInodeInfo *cifsInfo = CIFS_I(tmp_inode);
309 struct cifs_sb_info *cifs_sb = CIFS_SB(tmp_inode->i_sb);
310
311 __u32 type = le32_to_cpu(pfindData->Type);
312 __u64 num_of_bytes = le64_to_cpu(pfindData->NumOfBytes);
313 __u64 end_of_file = le64_to_cpu(pfindData->EndOfFile);
314 cifsInfo->time = jiffies;
315 atomic_inc(&cifsInfo->inUse);
316
317 /* save mtime and size */
318 local_mtime = tmp_inode->i_mtime;
319 local_size = tmp_inode->i_size;
320
321 tmp_inode->i_atime =
322 cifs_NTtimeToUnix(pfindData->LastAccessTime);
323 tmp_inode->i_mtime =
324 cifs_NTtimeToUnix(pfindData->LastModificationTime);
325 tmp_inode->i_ctime =
326 cifs_NTtimeToUnix(pfindData->LastStatusChange);
327
328 tmp_inode->i_mode = le64_to_cpu(pfindData->Permissions);
329 /* since we set the inode type below we need to mask off type
330 to avoid strange results if bits above were corrupt */
331 tmp_inode->i_mode &= ~S_IFMT;
332 if (type == UNIX_FILE) {
333 *pobject_type = DT_REG;
334 tmp_inode->i_mode |= S_IFREG;
335 } else if (type == UNIX_SYMLINK) {
336 *pobject_type = DT_LNK;
337 tmp_inode->i_mode |= S_IFLNK;
338 } else if (type == UNIX_DIR) {
339 *pobject_type = DT_DIR;
340 tmp_inode->i_mode |= S_IFDIR;
341 } else if (type == UNIX_CHARDEV) {
342 *pobject_type = DT_CHR;
343 tmp_inode->i_mode |= S_IFCHR;
344 tmp_inode->i_rdev = MKDEV(le64_to_cpu(pfindData->DevMajor),
345 le64_to_cpu(pfindData->DevMinor) & MINORMASK);
346 } else if (type == UNIX_BLOCKDEV) {
347 *pobject_type = DT_BLK;
348 tmp_inode->i_mode |= S_IFBLK;
349 tmp_inode->i_rdev = MKDEV(le64_to_cpu(pfindData->DevMajor),
350 le64_to_cpu(pfindData->DevMinor) & MINORMASK);
351 } else if (type == UNIX_FIFO) {
352 *pobject_type = DT_FIFO;
353 tmp_inode->i_mode |= S_IFIFO;
354 } else if (type == UNIX_SOCKET) {
355 *pobject_type = DT_SOCK;
356 tmp_inode->i_mode |= S_IFSOCK;
357 } else {
358 /* safest to just call it a file */
359 *pobject_type = DT_REG;
360 tmp_inode->i_mode |= S_IFREG;
361 cFYI(1, ("unknown inode type %d", type));
362 }
363 169
364 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) 170 memset(fattr, 0, sizeof(*fattr));
365 tmp_inode->i_uid = cifs_sb->mnt_uid; 171 fattr->cf_atime = cnvrtDosUnixTm(info->LastAccessDate,
366 else 172 info->LastAccessTime, offset);
367 tmp_inode->i_uid = le64_to_cpu(pfindData->Uid); 173 fattr->cf_ctime = cnvrtDosUnixTm(info->LastWriteDate,
368 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) 174 info->LastWriteTime, offset);
369 tmp_inode->i_gid = cifs_sb->mnt_gid; 175 fattr->cf_mtime = cnvrtDosUnixTm(info->LastWriteDate,
370 else 176 info->LastWriteTime, offset);
371 tmp_inode->i_gid = le64_to_cpu(pfindData->Gid);
372 tmp_inode->i_nlink = le64_to_cpu(pfindData->Nlinks);
373
374 cifsInfo->server_eof = end_of_file;
375 spin_lock(&tmp_inode->i_lock);
376 if (is_size_safe_to_change(cifsInfo, end_of_file)) {
377 /* can not safely change the file size here if the
378 client is writing to it due to potential races */
379 i_size_write(tmp_inode, end_of_file);
380
381 /* 512 bytes (2**9) is the fake blocksize that must be used */
382 /* for this calculation, not the real blocksize */
383 tmp_inode->i_blocks = (512 - 1 + num_of_bytes) >> 9;
384 }
385 spin_unlock(&tmp_inode->i_lock);
386 177
387 if (S_ISREG(tmp_inode->i_mode)) { 178 fattr->cf_cifsattrs = le16_to_cpu(info->Attributes);
388 cFYI(1, ("File inode")); 179 fattr->cf_bytes = le32_to_cpu(info->AllocationSize);
389 tmp_inode->i_op = &cifs_file_inode_ops; 180 fattr->cf_eof = le32_to_cpu(info->DataSize);
390 181
391 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) { 182 cifs_fill_common_info(fattr, cifs_sb);
392 if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
393 tmp_inode->i_fop = &cifs_file_direct_nobrl_ops;
394 else
395 tmp_inode->i_fop = &cifs_file_direct_ops;
396 } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
397 tmp_inode->i_fop = &cifs_file_nobrl_ops;
398 else
399 tmp_inode->i_fop = &cifs_file_ops;
400
401 if ((cifs_sb->tcon) && (cifs_sb->tcon->ses) &&
402 (cifs_sb->tcon->ses->server->maxBuf <
403 PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE))
404 tmp_inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
405 else
406 tmp_inode->i_data.a_ops = &cifs_addr_ops;
407
408 if (isNewInode)
409 return; /* No sense invalidating pages for new inode
410 since we have not started caching readahead
411 file data for it yet */
412
413 if (timespec_equal(&tmp_inode->i_mtime, &local_mtime) &&
414 (local_size == tmp_inode->i_size)) {
415 cFYI(1, ("inode exists but unchanged"));
416 } else {
417 /* file may have changed on server */
418 cFYI(1, ("invalidate inode, readdir detected change"));
419 invalidate_remote_inode(tmp_inode);
420 }
421 } else if (S_ISDIR(tmp_inode->i_mode)) {
422 cFYI(1, ("Directory inode"));
423 tmp_inode->i_op = &cifs_dir_inode_ops;
424 tmp_inode->i_fop = &cifs_dir_ops;
425 } else if (S_ISLNK(tmp_inode->i_mode)) {
426 cFYI(1, ("Symbolic Link inode"));
427 tmp_inode->i_op = &cifs_symlink_inode_ops;
428/* tmp_inode->i_fop = *//* do not need to set to anything */
429 } else {
430 cFYI(1, ("Special inode"));
431 init_special_inode(tmp_inode, tmp_inode->i_mode,
432 tmp_inode->i_rdev);
433 }
434} 183}
435 184
436/* BB eventually need to add the following helper function to 185/* BB eventually need to add the following helper function to
@@ -872,7 +621,7 @@ static int cifs_get_name_from_search_buf(struct qstr *pqst,
872 len = strnlen(filename, PATH_MAX); 621 len = strnlen(filename, PATH_MAX);
873 } 622 }
874 623
875 *pinum = le64_to_cpu(pFindData->UniqueId); 624 *pinum = le64_to_cpu(pFindData->basic.UniqueId);
876 } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) { 625 } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
877 FILE_DIRECTORY_INFO *pFindData = 626 FILE_DIRECTORY_INFO *pFindData =
878 (FILE_DIRECTORY_INFO *)current_entry; 627 (FILE_DIRECTORY_INFO *)current_entry;
@@ -932,11 +681,12 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
932 int rc = 0; 681 int rc = 0;
933 struct qstr qstring; 682 struct qstr qstring;
934 struct cifsFileInfo *pCifsF; 683 struct cifsFileInfo *pCifsF;
935 unsigned int obj_type; 684 u64 inum;
936 __u64 inum; 685 ino_t ino;
686 struct super_block *sb;
937 struct cifs_sb_info *cifs_sb; 687 struct cifs_sb_info *cifs_sb;
938 struct inode *tmp_inode;
939 struct dentry *tmp_dentry; 688 struct dentry *tmp_dentry;
689 struct cifs_fattr fattr;
940 690
941 /* get filename and len into qstring */ 691 /* get filename and len into qstring */
942 /* get dentry */ 692 /* get dentry */
@@ -954,60 +704,53 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
954 if (rc != 0) 704 if (rc != 0)
955 return 0; 705 return 0;
956 706
957 cifs_sb = CIFS_SB(file->f_path.dentry->d_sb); 707 sb = file->f_path.dentry->d_sb;
708 cifs_sb = CIFS_SB(sb);
958 709
959 qstring.name = scratch_buf; 710 qstring.name = scratch_buf;
960 rc = cifs_get_name_from_search_buf(&qstring, pfindEntry, 711 rc = cifs_get_name_from_search_buf(&qstring, pfindEntry,
961 pCifsF->srch_inf.info_level, 712 pCifsF->srch_inf.info_level,
962 pCifsF->srch_inf.unicode, cifs_sb, 713 pCifsF->srch_inf.unicode, cifs_sb,
963 max_len, 714 max_len, &inum /* returned */);
964 &inum /* returned */);
965 715
966 if (rc) 716 if (rc)
967 return rc; 717 return rc;
968 718
969 /* only these two infolevels return valid inode numbers */
970 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX ||
971 pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
972 rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
973 &inum);
974 else
975 rc = construct_dentry(&qstring, file, &tmp_inode, &tmp_dentry,
976 NULL);
977
978 if ((tmp_inode == NULL) || (tmp_dentry == NULL))
979 return -ENOMEM;
980
981 /* we pass in rc below, indicating whether it is a new inode,
982 so we can figure out whether to invalidate the inode cached
983 data if the file has changed */
984 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX) 719 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
985 unix_fill_in_inode(tmp_inode, 720 cifs_unix_basic_to_fattr(&fattr,
986 (FILE_UNIX_INFO *)pfindEntry, 721 &((FILE_UNIX_INFO *) pfindEntry)->basic,
987 &obj_type, rc); 722 cifs_sb);
988 else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) 723 else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
989 fill_in_inode(tmp_inode, 0 /* old level 1 buffer type */, 724 cifs_std_info_to_fattr(&fattr, (FIND_FILE_STANDARD_INFO *)
990 pfindEntry, &obj_type, rc); 725 pfindEntry, cifs_sb);
991 else 726 else
992 fill_in_inode(tmp_inode, 1 /* NT */, pfindEntry, &obj_type, rc); 727 cifs_dir_info_to_fattr(&fattr, (FILE_DIRECTORY_INFO *)
728 pfindEntry, cifs_sb);
993 729
994 if (rc) /* new inode - needs to be tied to dentry */ { 730 /* FIXME: make _to_fattr functions fill this out */
995 d_instantiate(tmp_dentry, tmp_inode); 731 if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
996 if (rc == 2) 732 fattr.cf_uniqueid = inum;
997 d_rehash(tmp_dentry); 733 else
998 } 734 fattr.cf_uniqueid = iunique(sb, ROOT_I);
999 735
736 ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
737 tmp_dentry = cifs_readdir_lookup(file->f_dentry, &qstring, &fattr);
1000 738
1001 rc = filldir(direntry, qstring.name, qstring.len, file->f_pos, 739 rc = filldir(direntry, qstring.name, qstring.len, file->f_pos,
1002 tmp_inode->i_ino, obj_type); 740 ino, fattr.cf_dtype);
741
742 /*
743 * we can not return filldir errors to the caller since they are
744 * "normal" when the stat blocksize is too small - we return remapped
745 * error instead
746 *
747 * FIXME: This looks bogus. filldir returns -EOVERFLOW in the above
748 * case already. Why should we be clobbering other errors from it?
749 */
1003 if (rc) { 750 if (rc) {
1004 cFYI(1, ("filldir rc = %d", rc)); 751 cFYI(1, ("filldir rc = %d", rc));
1005 /* we can not return filldir errors to the caller
1006 since they are "normal" when the stat blocksize
1007 is too small - we return remapped error instead */
1008 rc = -EOVERFLOW; 752 rc = -EOVERFLOW;
1009 } 753 }
1010
1011 dput(tmp_dentry); 754 dput(tmp_dentry);
1012 return rc; 755 return rc;
1013} 756}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 13:18:24 -0500