Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * fs/cifs/xattr.c | |
3 | * | |
79a58d1f | 4 | * Copyright (c) International Business Machines Corp., 2003, 2007 |
1da177e4 LT |
5 | * Author(s): Steve French (sfrench@us.ibm.com) |
6 | * | |
7 | * This library is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Lesser General Public License as published | |
9 | * by the Free Software Foundation; either version 2.1 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This library is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
15 | * the GNU Lesser General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Lesser General Public License | |
18 | * along with this library; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/fs.h> | |
23 | #include <linux/posix_acl_xattr.h> | |
5a0e3ad6 | 24 | #include <linux/slab.h> |
f995e740 | 25 | #include <linux/xattr.h> |
1da177e4 LT |
26 | #include "cifsfs.h" |
27 | #include "cifspdu.h" | |
28 | #include "cifsglob.h" | |
29 | #include "cifsproto.h" | |
30 | #include "cifs_debug.h" | |
31 | ||
32 | #define MAX_EA_VALUE_SIZE 65535 | |
33 | #define CIFS_XATTR_DOS_ATTRIB "user.DosAttrib" | |
fbeba8bb | 34 | #define CIFS_XATTR_CIFS_ACL "system.cifs_acl" |
1da177e4 | 35 | |
f995e740 | 36 | /* BB need to add server (Samba e.g) support for security and trusted prefix */ |
1da177e4 | 37 | |
79a58d1f | 38 | int cifs_removexattr(struct dentry *direntry, const char *ea_name) |
1da177e4 LT |
39 | { |
40 | int rc = -EOPNOTSUPP; | |
41 | #ifdef CONFIG_CIFS_XATTR | |
6d5786a3 | 42 | unsigned int xid; |
1da177e4 | 43 | struct cifs_sb_info *cifs_sb; |
7ffec372 | 44 | struct tcon_link *tlink; |
96daf2b0 | 45 | struct cifs_tcon *pTcon; |
79a58d1f | 46 | struct super_block *sb; |
7ffec372 | 47 | char *full_path = NULL; |
79a58d1f SF |
48 | |
49 | if (direntry == NULL) | |
1da177e4 | 50 | return -EIO; |
79a58d1f | 51 | if (direntry->d_inode == NULL) |
1da177e4 LT |
52 | return -EIO; |
53 | sb = direntry->d_inode->i_sb; | |
79a58d1f | 54 | if (sb == NULL) |
1da177e4 | 55 | return -EIO; |
79a58d1f | 56 | |
1da177e4 | 57 | cifs_sb = CIFS_SB(sb); |
7ffec372 JL |
58 | tlink = cifs_sb_tlink(cifs_sb); |
59 | if (IS_ERR(tlink)) | |
60 | return PTR_ERR(tlink); | |
61 | pTcon = tlink_tcon(tlink); | |
62 | ||
6d5786a3 | 63 | xid = get_xid(); |
79a58d1f | 64 | |
1da177e4 | 65 | full_path = build_path_from_dentry(direntry); |
79a58d1f | 66 | if (full_path == NULL) { |
0f3bc09e | 67 | rc = -ENOMEM; |
7ffec372 | 68 | goto remove_ea_exit; |
1da177e4 | 69 | } |
79a58d1f | 70 | if (ea_name == NULL) { |
f96637be | 71 | cifs_dbg(FYI, "Null xattr names not supported\n"); |
f995e740 MZ |
72 | } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) |
73 | && (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN))) { | |
f96637be JP |
74 | cifs_dbg(FYI, |
75 | "illegal xattr request %s (only user namespace supported)\n", | |
76 | ea_name); | |
1da177e4 LT |
77 | /* BB what if no namespace prefix? */ |
78 | /* Should we just pass them to server, except for | |
79 | system and perhaps security prefixes? */ | |
80 | } else { | |
79a58d1f | 81 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
1da177e4 LT |
82 | goto remove_ea_exit; |
83 | ||
f995e740 | 84 | ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */ |
79a58d1f | 85 | rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, NULL, |
737b758c SF |
86 | (__u16)0, cifs_sb->local_nls, |
87 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); | |
1da177e4 LT |
88 | } |
89 | remove_ea_exit: | |
f99d49ad | 90 | kfree(full_path); |
6d5786a3 | 91 | free_xid(xid); |
7ffec372 | 92 | cifs_put_tlink(tlink); |
1da177e4 LT |
93 | #endif |
94 | return rc; | |
95 | } | |
96 | ||
79a58d1f SF |
97 | int cifs_setxattr(struct dentry *direntry, const char *ea_name, |
98 | const void *ea_value, size_t value_size, int flags) | |
1da177e4 LT |
99 | { |
100 | int rc = -EOPNOTSUPP; | |
101 | #ifdef CONFIG_CIFS_XATTR | |
6d5786a3 | 102 | unsigned int xid; |
1da177e4 | 103 | struct cifs_sb_info *cifs_sb; |
7ffec372 | 104 | struct tcon_link *tlink; |
96daf2b0 | 105 | struct cifs_tcon *pTcon; |
79a58d1f SF |
106 | struct super_block *sb; |
107 | char *full_path; | |
1da177e4 | 108 | |
79a58d1f | 109 | if (direntry == NULL) |
1da177e4 | 110 | return -EIO; |
79a58d1f | 111 | if (direntry->d_inode == NULL) |
1da177e4 LT |
112 | return -EIO; |
113 | sb = direntry->d_inode->i_sb; | |
79a58d1f | 114 | if (sb == NULL) |
1da177e4 | 115 | return -EIO; |
1da177e4 LT |
116 | |
117 | cifs_sb = CIFS_SB(sb); | |
7ffec372 JL |
118 | tlink = cifs_sb_tlink(cifs_sb); |
119 | if (IS_ERR(tlink)) | |
120 | return PTR_ERR(tlink); | |
121 | pTcon = tlink_tcon(tlink); | |
122 | ||
6d5786a3 | 123 | xid = get_xid(); |
1da177e4 | 124 | |
1da177e4 | 125 | full_path = build_path_from_dentry(direntry); |
79a58d1f | 126 | if (full_path == NULL) { |
0f3bc09e | 127 | rc = -ENOMEM; |
7ffec372 | 128 | goto set_ea_exit; |
1da177e4 LT |
129 | } |
130 | /* return dos attributes as pseudo xattr */ | |
131 | /* return alt name if available as pseudo attr */ | |
132 | ||
133 | /* if proc/fs/cifs/streamstoxattr is set then | |
79a58d1f | 134 | search server for EAs or streams to |
1da177e4 | 135 | returns as xattrs */ |
79a58d1f | 136 | if (value_size > MAX_EA_VALUE_SIZE) { |
f96637be | 137 | cifs_dbg(FYI, "size of EA value too large\n"); |
7ffec372 JL |
138 | rc = -EOPNOTSUPP; |
139 | goto set_ea_exit; | |
1da177e4 LT |
140 | } |
141 | ||
79a58d1f | 142 | if (ea_name == NULL) { |
f96637be | 143 | cifs_dbg(FYI, "Null xattr names not supported\n"); |
f995e740 MZ |
144 | } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) |
145 | == 0) { | |
79a58d1f | 146 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
1da177e4 | 147 | goto set_ea_exit; |
ad7a2926 | 148 | if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) |
f96637be | 149 | cifs_dbg(FYI, "attempt to set cifs inode metadata\n"); |
ad7a2926 | 150 | |
f995e740 | 151 | ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */ |
79a58d1f | 152 | rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, |
737b758c SF |
153 | (__u16)value_size, cifs_sb->local_nls, |
154 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); | |
f995e740 MZ |
155 | } else if (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) |
156 | == 0) { | |
79a58d1f | 157 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
1da177e4 LT |
158 | goto set_ea_exit; |
159 | ||
f995e740 | 160 | ea_name += XATTR_OS2_PREFIX_LEN; /* skip past os2. prefix */ |
79a58d1f | 161 | rc = CIFSSMBSetEA(xid, pTcon, full_path, ea_name, ea_value, |
737b758c SF |
162 | (__u16)value_size, cifs_sb->local_nls, |
163 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); | |
b73b9a4b SF |
164 | } else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL, |
165 | strlen(CIFS_XATTR_CIFS_ACL)) == 0) { | |
b0f8ef20 SN |
166 | #ifdef CONFIG_CIFS_ACL |
167 | struct cifs_ntsd *pacl; | |
b73b9a4b SF |
168 | pacl = kmalloc(value_size, GFP_KERNEL); |
169 | if (!pacl) { | |
b73b9a4b SF |
170 | rc = -ENOMEM; |
171 | } else { | |
b73b9a4b SF |
172 | memcpy(pacl, ea_value, value_size); |
173 | rc = set_cifs_acl(pacl, value_size, | |
a5ff3769 | 174 | direntry->d_inode, full_path, CIFS_ACL_DACL); |
b73b9a4b SF |
175 | if (rc == 0) /* force revalidate of the inode */ |
176 | CIFS_I(direntry->d_inode)->time = 0; | |
177 | kfree(pacl); | |
b0f8ef20 | 178 | } |
b73b9a4b | 179 | #else |
f96637be | 180 | cifs_dbg(FYI, "Set CIFS ACL not supported yet\n"); |
b73b9a4b | 181 | #endif /* CONFIG_CIFS_ACL */ |
1da177e4 | 182 | } else { |
79a58d1f SF |
183 | int temp; |
184 | temp = strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, | |
1da177e4 LT |
185 | strlen(POSIX_ACL_XATTR_ACCESS)); |
186 | if (temp == 0) { | |
187 | #ifdef CONFIG_CIFS_POSIX | |
79a58d1f SF |
188 | if (sb->s_flags & MS_POSIXACL) |
189 | rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, | |
190 | ea_value, (const int)value_size, | |
191 | ACL_TYPE_ACCESS, cifs_sb->local_nls, | |
192 | cifs_sb->mnt_cifs_flags & | |
737b758c | 193 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
f96637be | 194 | cifs_dbg(FYI, "set POSIX ACL rc %d\n", rc); |
1da177e4 | 195 | #else |
f96637be | 196 | cifs_dbg(FYI, "set POSIX ACL not supported\n"); |
1da177e4 | 197 | #endif |
79a58d1f SF |
198 | } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, |
199 | strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { | |
1da177e4 | 200 | #ifdef CONFIG_CIFS_POSIX |
79a58d1f SF |
201 | if (sb->s_flags & MS_POSIXACL) |
202 | rc = CIFSSMBSetPosixACL(xid, pTcon, full_path, | |
203 | ea_value, (const int)value_size, | |
737b758c | 204 | ACL_TYPE_DEFAULT, cifs_sb->local_nls, |
79a58d1f | 205 | cifs_sb->mnt_cifs_flags & |
737b758c | 206 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
f96637be | 207 | cifs_dbg(FYI, "set POSIX default ACL rc %d\n", rc); |
1da177e4 | 208 | #else |
f96637be | 209 | cifs_dbg(FYI, "set default POSIX ACL not supported\n"); |
1da177e4 LT |
210 | #endif |
211 | } else { | |
f96637be JP |
212 | cifs_dbg(FYI, "illegal xattr request %s (only user namespace supported)\n", |
213 | ea_name); | |
1da177e4 | 214 | /* BB what if no namespace prefix? */ |
79a58d1f | 215 | /* Should we just pass them to server, except for |
1da177e4 LT |
216 | system and perhaps security prefixes? */ |
217 | } | |
218 | } | |
219 | ||
220 | set_ea_exit: | |
f99d49ad | 221 | kfree(full_path); |
6d5786a3 | 222 | free_xid(xid); |
7ffec372 | 223 | cifs_put_tlink(tlink); |
1da177e4 LT |
224 | #endif |
225 | return rc; | |
226 | } | |
227 | ||
79a58d1f SF |
228 | ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, |
229 | void *ea_value, size_t buf_size) | |
1da177e4 LT |
230 | { |
231 | ssize_t rc = -EOPNOTSUPP; | |
232 | #ifdef CONFIG_CIFS_XATTR | |
6d5786a3 | 233 | unsigned int xid; |
1da177e4 | 234 | struct cifs_sb_info *cifs_sb; |
7ffec372 | 235 | struct tcon_link *tlink; |
96daf2b0 | 236 | struct cifs_tcon *pTcon; |
79a58d1f SF |
237 | struct super_block *sb; |
238 | char *full_path; | |
1da177e4 | 239 | |
79a58d1f | 240 | if (direntry == NULL) |
1da177e4 | 241 | return -EIO; |
79a58d1f | 242 | if (direntry->d_inode == NULL) |
1da177e4 LT |
243 | return -EIO; |
244 | sb = direntry->d_inode->i_sb; | |
79a58d1f | 245 | if (sb == NULL) |
1da177e4 LT |
246 | return -EIO; |
247 | ||
1da177e4 | 248 | cifs_sb = CIFS_SB(sb); |
7ffec372 JL |
249 | tlink = cifs_sb_tlink(cifs_sb); |
250 | if (IS_ERR(tlink)) | |
251 | return PTR_ERR(tlink); | |
252 | pTcon = tlink_tcon(tlink); | |
253 | ||
6d5786a3 | 254 | xid = get_xid(); |
1da177e4 | 255 | |
1da177e4 | 256 | full_path = build_path_from_dentry(direntry); |
79a58d1f | 257 | if (full_path == NULL) { |
0f3bc09e | 258 | rc = -ENOMEM; |
7ffec372 | 259 | goto get_ea_exit; |
1da177e4 LT |
260 | } |
261 | /* return dos attributes as pseudo xattr */ | |
262 | /* return alt name if available as pseudo attr */ | |
79a58d1f | 263 | if (ea_name == NULL) { |
f96637be | 264 | cifs_dbg(FYI, "Null xattr names not supported\n"); |
f995e740 MZ |
265 | } else if (strncmp(ea_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) |
266 | == 0) { | |
79a58d1f | 267 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
1da177e4 LT |
268 | goto get_ea_exit; |
269 | ||
79a58d1f | 270 | if (strncmp(ea_name, CIFS_XATTR_DOS_ATTRIB, 14) == 0) { |
f96637be | 271 | cifs_dbg(FYI, "attempt to query cifs inode metadata\n"); |
1da177e4 LT |
272 | /* revalidate/getattr then populate from inode */ |
273 | } /* BB add else when above is implemented */ | |
f995e740 | 274 | ea_name += XATTR_USER_PREFIX_LEN; /* skip past user. prefix */ |
31c0519f | 275 | rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value, |
737b758c SF |
276 | buf_size, cifs_sb->local_nls, |
277 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); | |
f995e740 | 278 | } else if (strncmp(ea_name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { |
79a58d1f | 279 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
1da177e4 LT |
280 | goto get_ea_exit; |
281 | ||
f995e740 | 282 | ea_name += XATTR_OS2_PREFIX_LEN; /* skip past os2. prefix */ |
31c0519f | 283 | rc = CIFSSMBQAllEAs(xid, pTcon, full_path, ea_name, ea_value, |
737b758c SF |
284 | buf_size, cifs_sb->local_nls, |
285 | cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); | |
79a58d1f | 286 | } else if (strncmp(ea_name, POSIX_ACL_XATTR_ACCESS, |
0a4b92c0 | 287 | strlen(POSIX_ACL_XATTR_ACCESS)) == 0) { |
1da177e4 | 288 | #ifdef CONFIG_CIFS_POSIX |
79a58d1f | 289 | if (sb->s_flags & MS_POSIXACL) |
1da0c78b | 290 | rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, |
79a58d1f | 291 | ea_value, buf_size, ACL_TYPE_ACCESS, |
737b758c | 292 | cifs_sb->local_nls, |
79a58d1f | 293 | cifs_sb->mnt_cifs_flags & |
737b758c | 294 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
79a58d1f | 295 | #else |
f96637be | 296 | cifs_dbg(FYI, "Query POSIX ACL not supported yet\n"); |
1da177e4 | 297 | #endif /* CONFIG_CIFS_POSIX */ |
79a58d1f | 298 | } else if (strncmp(ea_name, POSIX_ACL_XATTR_DEFAULT, |
0a4b92c0 | 299 | strlen(POSIX_ACL_XATTR_DEFAULT)) == 0) { |
1da177e4 | 300 | #ifdef CONFIG_CIFS_POSIX |
79a58d1f | 301 | if (sb->s_flags & MS_POSIXACL) |
1da0c78b | 302 | rc = CIFSSMBGetPosixACL(xid, pTcon, full_path, |
79a58d1f | 303 | ea_value, buf_size, ACL_TYPE_DEFAULT, |
737b758c | 304 | cifs_sb->local_nls, |
79a58d1f | 305 | cifs_sb->mnt_cifs_flags & |
737b758c | 306 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
79a58d1f | 307 | #else |
f96637be | 308 | cifs_dbg(FYI, "Query POSIX default ACL not supported yet\n"); |
fbeba8bb SP |
309 | #endif /* CONFIG_CIFS_POSIX */ |
310 | } else if (strncmp(ea_name, CIFS_XATTR_CIFS_ACL, | |
311 | strlen(CIFS_XATTR_CIFS_ACL)) == 0) { | |
312 | #ifdef CONFIG_CIFS_ACL | |
313 | u32 acllen; | |
314 | struct cifs_ntsd *pacl; | |
315 | ||
316 | pacl = get_cifs_acl(cifs_sb, direntry->d_inode, | |
317 | full_path, &acllen); | |
318 | if (IS_ERR(pacl)) { | |
319 | rc = PTR_ERR(pacl); | |
f96637be JP |
320 | cifs_dbg(VFS, "%s: error %zd getting sec desc\n", |
321 | __func__, rc); | |
fbeba8bb SP |
322 | } else { |
323 | if (ea_value) { | |
324 | if (acllen > buf_size) | |
325 | acllen = -ERANGE; | |
326 | else | |
327 | memcpy(ea_value, pacl, acllen); | |
328 | } | |
329 | rc = acllen; | |
330 | kfree(pacl); | |
331 | } | |
332 | #else | |
f96637be | 333 | cifs_dbg(FYI, "Query CIFS ACL not supported yet\n"); |
fbeba8bb | 334 | #endif /* CONFIG_CIFS_ACL */ |
79a58d1f | 335 | } else if (strncmp(ea_name, |
f995e740 | 336 | XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) == 0) { |
f96637be | 337 | cifs_dbg(FYI, "Trusted xattr namespace not supported yet\n"); |
79a58d1f | 338 | } else if (strncmp(ea_name, |
f995e740 | 339 | XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN) == 0) { |
f96637be | 340 | cifs_dbg(FYI, "Security xattr namespace not supported yet\n"); |
ad7a2926 | 341 | } else |
f96637be JP |
342 | cifs_dbg(FYI, |
343 | "illegal xattr request %s (only user namespace supported)\n", | |
344 | ea_name); | |
1da177e4 | 345 | |
79a58d1f | 346 | /* We could add an additional check for streams ie |
1da177e4 | 347 | if proc/fs/cifs/streamstoxattr is set then |
79a58d1f | 348 | search server for EAs or streams to |
1da177e4 LT |
349 | returns as xattrs */ |
350 | ||
79a58d1f SF |
351 | if (rc == -EINVAL) |
352 | rc = -EOPNOTSUPP; | |
1da177e4 LT |
353 | |
354 | get_ea_exit: | |
f99d49ad | 355 | kfree(full_path); |
6d5786a3 | 356 | free_xid(xid); |
7ffec372 | 357 | cifs_put_tlink(tlink); |
1da177e4 LT |
358 | #endif |
359 | return rc; | |
360 | } | |
361 | ||
79a58d1f | 362 | ssize_t cifs_listxattr(struct dentry *direntry, char *data, size_t buf_size) |
1da177e4 LT |
363 | { |
364 | ssize_t rc = -EOPNOTSUPP; | |
365 | #ifdef CONFIG_CIFS_XATTR | |
6d5786a3 | 366 | unsigned int xid; |
1da177e4 | 367 | struct cifs_sb_info *cifs_sb; |
7ffec372 | 368 | struct tcon_link *tlink; |
96daf2b0 | 369 | struct cifs_tcon *pTcon; |
79a58d1f SF |
370 | struct super_block *sb; |
371 | char *full_path; | |
1da177e4 | 372 | |
79a58d1f | 373 | if (direntry == NULL) |
1da177e4 | 374 | return -EIO; |
79a58d1f | 375 | if (direntry->d_inode == NULL) |
1da177e4 LT |
376 | return -EIO; |
377 | sb = direntry->d_inode->i_sb; | |
79a58d1f | 378 | if (sb == NULL) |
1da177e4 | 379 | return -EIO; |
1da177e4 LT |
380 | |
381 | cifs_sb = CIFS_SB(sb); | |
79a58d1f | 382 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_XATTR) |
ea4c07d7 SF |
383 | return -EOPNOTSUPP; |
384 | ||
7ffec372 JL |
385 | tlink = cifs_sb_tlink(cifs_sb); |
386 | if (IS_ERR(tlink)) | |
387 | return PTR_ERR(tlink); | |
388 | pTcon = tlink_tcon(tlink); | |
389 | ||
6d5786a3 | 390 | xid = get_xid(); |
ea4c07d7 | 391 | |
1da177e4 | 392 | full_path = build_path_from_dentry(direntry); |
79a58d1f | 393 | if (full_path == NULL) { |
0f3bc09e | 394 | rc = -ENOMEM; |
7ffec372 | 395 | goto list_ea_exit; |
1da177e4 LT |
396 | } |
397 | /* return dos attributes as pseudo xattr */ | |
398 | /* return alt name if available as pseudo attr */ | |
399 | ||
400 | /* if proc/fs/cifs/streamstoxattr is set then | |
79a58d1f | 401 | search server for EAs or streams to |
1da177e4 | 402 | returns as xattrs */ |
31c0519f JL |
403 | rc = CIFSSMBQAllEAs(xid, pTcon, full_path, NULL, data, |
404 | buf_size, cifs_sb->local_nls, | |
79a58d1f | 405 | cifs_sb->mnt_cifs_flags & |
737b758c | 406 | CIFS_MOUNT_MAP_SPECIAL_CHR); |
1da177e4 | 407 | |
7ffec372 | 408 | list_ea_exit: |
f99d49ad | 409 | kfree(full_path); |
6d5786a3 | 410 | free_xid(xid); |
7ffec372 | 411 | cifs_put_tlink(tlink); |
1da177e4 LT |
412 | #endif |
413 | return rc; | |
414 | } |