]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ncplib_kernel.c | |
3 | * | |
4 | * Copyright (C) 1995, 1996 by Volker Lendecke | |
5 | * Modified for big endian by J.F. Chadima and David S. Miller | |
6 | * Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache | |
7 | * Modified 1999 Wolfram Pienkoss for NLS | |
8 | * Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info | |
9 | * | |
10 | */ | |
11 | ||
b41f8b84 | 12 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
1da177e4 | 13 | |
32c419d9 | 14 | #include "ncp_fs.h" |
1da177e4 LT |
15 | |
16 | static inline void assert_server_locked(struct ncp_server *server) | |
17 | { | |
18 | if (server->lock == 0) { | |
d3b73ca1 | 19 | ncp_dbg(1, "server not locked!\n"); |
1da177e4 LT |
20 | } |
21 | } | |
22 | ||
23 | static void ncp_add_byte(struct ncp_server *server, __u8 x) | |
24 | { | |
25 | assert_server_locked(server); | |
26 | *(__u8 *) (&(server->packet[server->current_size])) = x; | |
27 | server->current_size += 1; | |
28 | return; | |
29 | } | |
30 | ||
31 | static void ncp_add_word(struct ncp_server *server, __le16 x) | |
32 | { | |
33 | assert_server_locked(server); | |
34 | put_unaligned(x, (__le16 *) (&(server->packet[server->current_size]))); | |
35 | server->current_size += 2; | |
36 | return; | |
37 | } | |
38 | ||
39 | static void ncp_add_be16(struct ncp_server *server, __u16 x) | |
40 | { | |
41 | assert_server_locked(server); | |
42 | put_unaligned(cpu_to_be16(x), (__be16 *) (&(server->packet[server->current_size]))); | |
43 | server->current_size += 2; | |
44 | } | |
45 | ||
46 | static void ncp_add_dword(struct ncp_server *server, __le32 x) | |
47 | { | |
48 | assert_server_locked(server); | |
49 | put_unaligned(x, (__le32 *) (&(server->packet[server->current_size]))); | |
50 | server->current_size += 4; | |
51 | return; | |
52 | } | |
53 | ||
54 | static void ncp_add_be32(struct ncp_server *server, __u32 x) | |
55 | { | |
56 | assert_server_locked(server); | |
57 | put_unaligned(cpu_to_be32(x), (__be32 *)(&(server->packet[server->current_size]))); | |
58 | server->current_size += 4; | |
59 | } | |
60 | ||
61 | static inline void ncp_add_dword_lh(struct ncp_server *server, __u32 x) { | |
62 | ncp_add_dword(server, cpu_to_le32(x)); | |
63 | } | |
64 | ||
65 | static void ncp_add_mem(struct ncp_server *server, const void *source, int size) | |
66 | { | |
67 | assert_server_locked(server); | |
68 | memcpy(&(server->packet[server->current_size]), source, size); | |
69 | server->current_size += size; | |
70 | return; | |
71 | } | |
72 | ||
73 | static void ncp_add_pstring(struct ncp_server *server, const char *s) | |
74 | { | |
75 | int len = strlen(s); | |
76 | assert_server_locked(server); | |
77 | if (len > 255) { | |
d3b73ca1 | 78 | ncp_dbg(1, "string too long: %s\n", s); |
1da177e4 LT |
79 | len = 255; |
80 | } | |
81 | ncp_add_byte(server, len); | |
82 | ncp_add_mem(server, s, len); | |
83 | return; | |
84 | } | |
85 | ||
86 | static inline void ncp_init_request(struct ncp_server *server) | |
87 | { | |
88 | ncp_lock_server(server); | |
89 | ||
90 | server->current_size = sizeof(struct ncp_request_header); | |
91 | server->has_subfunction = 0; | |
92 | } | |
93 | ||
94 | static inline void ncp_init_request_s(struct ncp_server *server, int subfunction) | |
95 | { | |
96 | ncp_lock_server(server); | |
97 | ||
98 | server->current_size = sizeof(struct ncp_request_header) + 2; | |
99 | ncp_add_byte(server, subfunction); | |
100 | ||
101 | server->has_subfunction = 1; | |
102 | } | |
103 | ||
104 | static inline char * | |
97a4feb4 | 105 | ncp_reply_data(struct ncp_server *server, int offset) |
1da177e4 LT |
106 | { |
107 | return &(server->packet[sizeof(struct ncp_reply_header) + offset]); | |
108 | } | |
109 | ||
2e54eb96 | 110 | static inline u8 BVAL(const void *data) |
1da177e4 | 111 | { |
2e54eb96 | 112 | return *(const u8 *)data; |
1da177e4 LT |
113 | } |
114 | ||
97a4feb4 | 115 | static u8 ncp_reply_byte(struct ncp_server *server, int offset) |
1da177e4 | 116 | { |
2e54eb96 | 117 | return *(const u8 *)ncp_reply_data(server, offset); |
1da177e4 LT |
118 | } |
119 | ||
2e54eb96 | 120 | static inline u16 WVAL_LH(const void *data) |
1da177e4 | 121 | { |
97a4feb4 | 122 | return get_unaligned_le16(data); |
1da177e4 LT |
123 | } |
124 | ||
97a4feb4 HH |
125 | static u16 |
126 | ncp_reply_le16(struct ncp_server *server, int offset) | |
1da177e4 | 127 | { |
97a4feb4 | 128 | return get_unaligned_le16(ncp_reply_data(server, offset)); |
1da177e4 LT |
129 | } |
130 | ||
97a4feb4 HH |
131 | static u16 |
132 | ncp_reply_be16(struct ncp_server *server, int offset) | |
1da177e4 | 133 | { |
97a4feb4 | 134 | return get_unaligned_be16(ncp_reply_data(server, offset)); |
1da177e4 LT |
135 | } |
136 | ||
2e54eb96 | 137 | static inline u32 DVAL_LH(const void *data) |
1da177e4 | 138 | { |
97a4feb4 | 139 | return get_unaligned_le32(data); |
1da177e4 LT |
140 | } |
141 | ||
142 | static __le32 | |
97a4feb4 | 143 | ncp_reply_dword(struct ncp_server *server, int offset) |
1da177e4 | 144 | { |
97a4feb4 | 145 | return get_unaligned((__le32 *)ncp_reply_data(server, offset)); |
1da177e4 LT |
146 | } |
147 | ||
148 | static inline __u32 ncp_reply_dword_lh(struct ncp_server* server, int offset) { | |
149 | return le32_to_cpu(ncp_reply_dword(server, offset)); | |
150 | } | |
151 | ||
152 | int | |
153 | ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target) | |
154 | { | |
155 | int result; | |
156 | ||
157 | ncp_init_request(server); | |
158 | ncp_add_be16(server, size); | |
159 | ||
160 | if ((result = ncp_request(server, 33)) != 0) { | |
161 | ncp_unlock_server(server); | |
162 | return result; | |
163 | } | |
164 | *target = min_t(unsigned int, ncp_reply_be16(server, 0), size); | |
165 | ||
166 | ncp_unlock_server(server); | |
167 | return 0; | |
168 | } | |
169 | ||
170 | ||
171 | /* options: | |
172 | * bit 0 ipx checksum | |
173 | * bit 1 packet signing | |
174 | */ | |
175 | int | |
176 | ncp_negotiate_size_and_options(struct ncp_server *server, | |
177 | int size, int options, int *ret_size, int *ret_options) { | |
178 | int result; | |
179 | ||
180 | /* there is minimum */ | |
181 | if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE; | |
182 | ||
183 | ncp_init_request(server); | |
184 | ncp_add_be16(server, size); | |
185 | ncp_add_byte(server, options); | |
186 | ||
187 | if ((result = ncp_request(server, 0x61)) != 0) | |
188 | { | |
189 | ncp_unlock_server(server); | |
190 | return result; | |
191 | } | |
192 | ||
193 | /* NCP over UDP returns 0 (!!!) */ | |
194 | result = ncp_reply_be16(server, 0); | |
195 | if (result >= NCP_BLOCK_SIZE) | |
196 | size = min(result, size); | |
197 | *ret_size = size; | |
198 | *ret_options = ncp_reply_byte(server, 4); | |
199 | ||
200 | ncp_unlock_server(server); | |
201 | return 0; | |
202 | } | |
203 | ||
204 | int ncp_get_volume_info_with_number(struct ncp_server* server, | |
205 | int n, struct ncp_volume_info* target) { | |
206 | int result; | |
207 | int len; | |
208 | ||
209 | ncp_init_request_s(server, 44); | |
210 | ncp_add_byte(server, n); | |
211 | ||
212 | if ((result = ncp_request(server, 22)) != 0) { | |
213 | goto out; | |
214 | } | |
215 | target->total_blocks = ncp_reply_dword_lh(server, 0); | |
216 | target->free_blocks = ncp_reply_dword_lh(server, 4); | |
217 | target->purgeable_blocks = ncp_reply_dword_lh(server, 8); | |
218 | target->not_yet_purgeable_blocks = ncp_reply_dword_lh(server, 12); | |
219 | target->total_dir_entries = ncp_reply_dword_lh(server, 16); | |
220 | target->available_dir_entries = ncp_reply_dword_lh(server, 20); | |
221 | target->sectors_per_block = ncp_reply_byte(server, 28); | |
222 | ||
223 | memset(&(target->volume_name), 0, sizeof(target->volume_name)); | |
224 | ||
225 | result = -EIO; | |
226 | len = ncp_reply_byte(server, 29); | |
227 | if (len > NCP_VOLNAME_LEN) { | |
d3b73ca1 | 228 | ncp_dbg(1, "volume name too long: %d\n", len); |
1da177e4 LT |
229 | goto out; |
230 | } | |
231 | memcpy(&(target->volume_name), ncp_reply_data(server, 30), len); | |
232 | result = 0; | |
233 | out: | |
234 | ncp_unlock_server(server); | |
235 | return result; | |
236 | } | |
237 | ||
238 | int ncp_get_directory_info(struct ncp_server* server, __u8 n, | |
239 | struct ncp_volume_info* target) { | |
240 | int result; | |
241 | int len; | |
242 | ||
243 | ncp_init_request_s(server, 45); | |
244 | ncp_add_byte(server, n); | |
245 | ||
246 | if ((result = ncp_request(server, 22)) != 0) { | |
247 | goto out; | |
248 | } | |
249 | target->total_blocks = ncp_reply_dword_lh(server, 0); | |
250 | target->free_blocks = ncp_reply_dword_lh(server, 4); | |
251 | target->purgeable_blocks = 0; | |
252 | target->not_yet_purgeable_blocks = 0; | |
253 | target->total_dir_entries = ncp_reply_dword_lh(server, 8); | |
254 | target->available_dir_entries = ncp_reply_dword_lh(server, 12); | |
255 | target->sectors_per_block = ncp_reply_byte(server, 20); | |
256 | ||
257 | memset(&(target->volume_name), 0, sizeof(target->volume_name)); | |
258 | ||
259 | result = -EIO; | |
260 | len = ncp_reply_byte(server, 21); | |
261 | if (len > NCP_VOLNAME_LEN) { | |
d3b73ca1 | 262 | ncp_dbg(1, "volume name too long: %d\n", len); |
1da177e4 LT |
263 | goto out; |
264 | } | |
265 | memcpy(&(target->volume_name), ncp_reply_data(server, 22), len); | |
266 | result = 0; | |
267 | out: | |
268 | ncp_unlock_server(server); | |
269 | return result; | |
270 | } | |
271 | ||
272 | int | |
273 | ncp_close_file(struct ncp_server *server, const char *file_id) | |
274 | { | |
275 | int result; | |
276 | ||
277 | ncp_init_request(server); | |
278 | ncp_add_byte(server, 0); | |
279 | ncp_add_mem(server, file_id, 6); | |
280 | ||
281 | result = ncp_request(server, 66); | |
282 | ncp_unlock_server(server); | |
283 | return result; | |
284 | } | |
285 | ||
286 | int | |
287 | ncp_make_closed(struct inode *inode) | |
288 | { | |
289 | int err; | |
290 | ||
291 | err = 0; | |
8e3f9045 | 292 | mutex_lock(&NCP_FINFO(inode)->open_mutex); |
1da177e4 LT |
293 | if (atomic_read(&NCP_FINFO(inode)->opened) == 1) { |
294 | atomic_set(&NCP_FINFO(inode)->opened, 0); | |
295 | err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle); | |
296 | ||
297 | if (!err) | |
e45ca8ba JP |
298 | ncp_vdbg("volnum=%d, dirent=%u, error=%d\n", |
299 | NCP_FINFO(inode)->volNumber, | |
300 | NCP_FINFO(inode)->dirEntNum, err); | |
1da177e4 | 301 | } |
8e3f9045 | 302 | mutex_unlock(&NCP_FINFO(inode)->open_mutex); |
1da177e4 LT |
303 | return err; |
304 | } | |
305 | ||
306 | static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num, | |
307 | __le32 dir_base, int have_dir_base, | |
308 | const char *path) | |
309 | { | |
310 | ncp_add_byte(server, vol_num); | |
311 | ncp_add_dword(server, dir_base); | |
312 | if (have_dir_base != 0) { | |
313 | ncp_add_byte(server, 1); /* dir_base */ | |
314 | } else { | |
315 | ncp_add_byte(server, 0xff); /* no handle */ | |
316 | } | |
317 | if (path != NULL) { | |
318 | ncp_add_byte(server, 1); /* 1 component */ | |
319 | ncp_add_pstring(server, path); | |
320 | } else { | |
321 | ncp_add_byte(server, 0); | |
322 | } | |
323 | } | |
324 | ||
325 | int ncp_dirhandle_alloc(struct ncp_server* server, __u8 volnum, __le32 dirent, | |
326 | __u8* dirhandle) { | |
327 | int result; | |
328 | ||
329 | ncp_init_request(server); | |
330 | ncp_add_byte(server, 12); /* subfunction */ | |
331 | ncp_add_byte(server, NW_NS_DOS); | |
332 | ncp_add_byte(server, 0); | |
333 | ncp_add_word(server, 0); | |
334 | ncp_add_handle_path(server, volnum, dirent, 1, NULL); | |
335 | if ((result = ncp_request(server, 87)) == 0) { | |
336 | *dirhandle = ncp_reply_byte(server, 0); | |
337 | } | |
338 | ncp_unlock_server(server); | |
339 | return result; | |
340 | } | |
341 | ||
342 | int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) { | |
343 | int result; | |
344 | ||
345 | ncp_init_request_s(server, 20); | |
346 | ncp_add_byte(server, dirhandle); | |
347 | result = ncp_request(server, 22); | |
348 | ncp_unlock_server(server); | |
349 | return result; | |
350 | } | |
351 | ||
2e54eb96 | 352 | void ncp_extract_file_info(const void *structure, struct nw_info_struct *target) |
1da177e4 | 353 | { |
2e54eb96 | 354 | const __u8 *name_len; |
1da177e4 LT |
355 | const int info_struct_size = offsetof(struct nw_info_struct, nameLen); |
356 | ||
357 | memcpy(target, structure, info_struct_size); | |
358 | name_len = structure + info_struct_size; | |
359 | target->nameLen = *name_len; | |
360 | memcpy(target->entryName, name_len + 1, *name_len); | |
361 | target->entryName[*name_len] = '\0'; | |
362 | target->volNumber = le32_to_cpu(target->volNumber); | |
363 | return; | |
364 | } | |
365 | ||
366 | #ifdef CONFIG_NCPFS_NFS_NS | |
2e54eb96 | 367 | static inline void ncp_extract_nfs_info(const unsigned char *structure, |
1da177e4 LT |
368 | struct nw_nfs_info *target) |
369 | { | |
370 | target->mode = DVAL_LH(structure); | |
371 | target->rdev = DVAL_LH(structure + 8); | |
372 | } | |
373 | #endif | |
374 | ||
375 | int ncp_obtain_nfs_info(struct ncp_server *server, | |
376 | struct nw_info_struct *target) | |
377 | ||
378 | { | |
379 | int result = 0; | |
380 | #ifdef CONFIG_NCPFS_NFS_NS | |
381 | __u32 volnum = target->volNumber; | |
382 | ||
383 | if (ncp_is_nfs_extras(server, volnum)) { | |
384 | ncp_init_request(server); | |
385 | ncp_add_byte(server, 19); /* subfunction */ | |
386 | ncp_add_byte(server, server->name_space[volnum]); | |
387 | ncp_add_byte(server, NW_NS_NFS); | |
388 | ncp_add_byte(server, 0); | |
389 | ncp_add_byte(server, volnum); | |
390 | ncp_add_dword(server, target->dirEntNum); | |
391 | /* We must retrieve both nlinks and rdev, otherwise some server versions | |
392 | report zeroes instead of valid data */ | |
393 | ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV); | |
394 | ||
395 | if ((result = ncp_request(server, 87)) == 0) { | |
396 | ncp_extract_nfs_info(ncp_reply_data(server, 0), &target->nfs); | |
d3b73ca1 | 397 | ncp_dbg(1, "(%s) mode=0%o, rdev=0x%x\n", |
1da177e4 LT |
398 | target->entryName, target->nfs.mode, |
399 | target->nfs.rdev); | |
400 | } else { | |
401 | target->nfs.mode = 0; | |
402 | target->nfs.rdev = 0; | |
403 | } | |
404 | ncp_unlock_server(server); | |
405 | ||
406 | } else | |
407 | #endif | |
408 | { | |
409 | target->nfs.mode = 0; | |
410 | target->nfs.rdev = 0; | |
411 | } | |
412 | return result; | |
413 | } | |
414 | ||
415 | /* | |
416 | * Returns information for a (one-component) name relative to | |
417 | * the specified directory. | |
418 | */ | |
2e54eb96 | 419 | int ncp_obtain_info(struct ncp_server *server, struct inode *dir, const char *path, |
1da177e4 LT |
420 | struct nw_info_struct *target) |
421 | { | |
422 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
423 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
424 | int result; | |
425 | ||
426 | if (target == NULL) { | |
b41f8b84 | 427 | pr_err("%s: invalid call\n", __func__); |
1da177e4 LT |
428 | return -EINVAL; |
429 | } | |
430 | ncp_init_request(server); | |
431 | ncp_add_byte(server, 6); /* subfunction */ | |
432 | ncp_add_byte(server, server->name_space[volnum]); | |
433 | ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */ | |
434 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ | |
435 | ncp_add_dword(server, RIM_ALL); | |
436 | ncp_add_handle_path(server, volnum, dirent, 1, path); | |
437 | ||
438 | if ((result = ncp_request(server, 87)) != 0) | |
439 | goto out; | |
440 | ncp_extract_file_info(ncp_reply_data(server, 0), target); | |
441 | ncp_unlock_server(server); | |
442 | ||
443 | result = ncp_obtain_nfs_info(server, target); | |
444 | return result; | |
445 | ||
446 | out: | |
447 | ncp_unlock_server(server); | |
448 | return result; | |
449 | } | |
450 | ||
451 | #ifdef CONFIG_NCPFS_NFS_NS | |
452 | static int | |
453 | ncp_obtain_DOS_dir_base(struct ncp_server *server, | |
2e54eb96 PV |
454 | __u8 ns, __u8 volnum, __le32 dirent, |
455 | const char *path, /* At most 1 component */ | |
1da177e4 LT |
456 | __le32 *DOS_dir_base) |
457 | { | |
458 | int result; | |
459 | ||
460 | ncp_init_request(server); | |
461 | ncp_add_byte(server, 6); /* subfunction */ | |
2e54eb96 PV |
462 | ncp_add_byte(server, ns); |
463 | ncp_add_byte(server, ns); | |
1da177e4 LT |
464 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ |
465 | ncp_add_dword(server, RIM_DIRECTORY); | |
466 | ncp_add_handle_path(server, volnum, dirent, 1, path); | |
467 | ||
468 | if ((result = ncp_request(server, 87)) == 0) | |
469 | { | |
470 | if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34); | |
471 | } | |
472 | ncp_unlock_server(server); | |
473 | return result; | |
474 | } | |
475 | #endif /* CONFIG_NCPFS_NFS_NS */ | |
476 | ||
477 | static inline int | |
478 | ncp_get_known_namespace(struct ncp_server *server, __u8 volume) | |
479 | { | |
480 | #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) | |
481 | int result; | |
482 | __u8 *namespace; | |
483 | __u16 no_namespaces; | |
484 | ||
485 | ncp_init_request(server); | |
486 | ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */ | |
487 | ncp_add_word(server, 0); | |
488 | ncp_add_byte(server, volume); | |
489 | ||
490 | if ((result = ncp_request(server, 87)) != 0) { | |
491 | ncp_unlock_server(server); | |
492 | return NW_NS_DOS; /* not result ?? */ | |
493 | } | |
494 | ||
495 | result = NW_NS_DOS; | |
496 | no_namespaces = ncp_reply_le16(server, 0); | |
497 | namespace = ncp_reply_data(server, 2); | |
498 | ||
499 | while (no_namespaces > 0) { | |
d3b73ca1 | 500 | ncp_dbg(1, "found %d on %d\n", *namespace, volume); |
1da177e4 LT |
501 | |
502 | #ifdef CONFIG_NCPFS_NFS_NS | |
503 | if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS)) | |
504 | { | |
505 | result = NW_NS_NFS; | |
506 | break; | |
507 | } | |
508 | #endif /* CONFIG_NCPFS_NFS_NS */ | |
509 | #ifdef CONFIG_NCPFS_OS2_NS | |
510 | if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2)) | |
511 | { | |
512 | result = NW_NS_OS2; | |
513 | } | |
514 | #endif /* CONFIG_NCPFS_OS2_NS */ | |
515 | namespace += 1; | |
516 | no_namespaces -= 1; | |
517 | } | |
518 | ncp_unlock_server(server); | |
519 | return result; | |
520 | #else /* neither OS2 nor NFS - only DOS */ | |
521 | return NW_NS_DOS; | |
522 | #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */ | |
523 | } | |
524 | ||
2e54eb96 PV |
525 | int |
526 | ncp_update_known_namespace(struct ncp_server *server, __u8 volume, int *ret_ns) | |
527 | { | |
528 | int ns = ncp_get_known_namespace(server, volume); | |
529 | ||
530 | if (ret_ns) | |
531 | *ret_ns = ns; | |
532 | ||
d3b73ca1 | 533 | ncp_dbg(1, "namespace[%d] = %d\n", volume, server->name_space[volume]); |
2e54eb96 PV |
534 | |
535 | if (server->name_space[volume] == ns) | |
536 | return 0; | |
537 | server->name_space[volume] = ns; | |
538 | return 1; | |
539 | } | |
540 | ||
1da177e4 LT |
541 | static int |
542 | ncp_ObtainSpecificDirBase(struct ncp_server *server, | |
543 | __u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base, | |
2e54eb96 | 544 | const char *path, /* At most 1 component */ |
1da177e4 LT |
545 | __le32 *dirEntNum, __le32 *DosDirNum) |
546 | { | |
547 | int result; | |
548 | ||
549 | ncp_init_request(server); | |
550 | ncp_add_byte(server, 6); /* subfunction */ | |
551 | ncp_add_byte(server, nsSrc); | |
552 | ncp_add_byte(server, nsDst); | |
553 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ | |
554 | ncp_add_dword(server, RIM_ALL); | |
555 | ncp_add_handle_path(server, vol_num, dir_base, 1, path); | |
556 | ||
557 | if ((result = ncp_request(server, 87)) != 0) | |
558 | { | |
559 | ncp_unlock_server(server); | |
560 | return result; | |
561 | } | |
562 | ||
563 | if (dirEntNum) | |
564 | *dirEntNum = ncp_reply_dword(server, 0x30); | |
565 | if (DosDirNum) | |
566 | *DosDirNum = ncp_reply_dword(server, 0x34); | |
567 | ncp_unlock_server(server); | |
568 | return 0; | |
569 | } | |
570 | ||
571 | int | |
572 | ncp_mount_subdir(struct ncp_server *server, | |
573 | __u8 volNumber, __u8 srcNS, __le32 dirEntNum, | |
574 | __u32* volume, __le32* newDirEnt, __le32* newDosEnt) | |
575 | { | |
576 | int dstNS; | |
577 | int result; | |
2e54eb96 PV |
578 | |
579 | ncp_update_known_namespace(server, volNumber, &dstNS); | |
1da177e4 LT |
580 | if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber, |
581 | dirEntNum, NULL, newDirEnt, newDosEnt)) != 0) | |
582 | { | |
583 | return result; | |
584 | } | |
1da177e4 LT |
585 | *volume = volNumber; |
586 | server->m.mounted_vol[1] = 0; | |
587 | server->m.mounted_vol[0] = 'X'; | |
588 | return 0; | |
589 | } | |
590 | ||
591 | int | |
2e54eb96 PV |
592 | ncp_get_volume_root(struct ncp_server *server, |
593 | const char *volname, __u32* volume, __le32* dirent, __le32* dosdirent) | |
1da177e4 LT |
594 | { |
595 | int result; | |
1da177e4 | 596 | |
d3b73ca1 | 597 | ncp_dbg(1, "looking up vol %s\n", volname); |
1da177e4 LT |
598 | |
599 | ncp_init_request(server); | |
600 | ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */ | |
601 | ncp_add_byte(server, 0); /* DOS namespace */ | |
602 | ncp_add_byte(server, 0); /* reserved */ | |
603 | ncp_add_byte(server, 0); /* reserved */ | |
604 | ncp_add_byte(server, 0); /* reserved */ | |
605 | ||
606 | ncp_add_byte(server, 0); /* faked volume number */ | |
607 | ncp_add_dword(server, 0); /* faked dir_base */ | |
608 | ncp_add_byte(server, 0xff); /* Don't have a dir_base */ | |
609 | ncp_add_byte(server, 1); /* 1 path component */ | |
610 | ncp_add_pstring(server, volname); | |
611 | ||
612 | if ((result = ncp_request(server, 87)) != 0) { | |
613 | ncp_unlock_server(server); | |
614 | return result; | |
615 | } | |
616 | *dirent = *dosdirent = ncp_reply_dword(server, 4); | |
2e54eb96 | 617 | *volume = ncp_reply_byte(server, 8); |
1da177e4 | 618 | ncp_unlock_server(server); |
1da177e4 LT |
619 | return 0; |
620 | } | |
621 | ||
622 | int | |
2e54eb96 PV |
623 | ncp_lookup_volume(struct ncp_server *server, |
624 | const char *volname, struct nw_info_struct *target) | |
1da177e4 LT |
625 | { |
626 | int result; | |
627 | ||
628 | memset(target, 0, sizeof(*target)); | |
629 | result = ncp_get_volume_root(server, volname, | |
630 | &target->volNumber, &target->dirEntNum, &target->DosDirNum); | |
631 | if (result) { | |
632 | return result; | |
633 | } | |
2e54eb96 | 634 | ncp_update_known_namespace(server, target->volNumber, NULL); |
1da177e4 LT |
635 | target->nameLen = strlen(volname); |
636 | memcpy(target->entryName, volname, target->nameLen+1); | |
637 | target->attributes = aDIR; | |
638 | /* set dates to Jan 1, 1986 00:00 */ | |
639 | target->creationTime = target->modifyTime = cpu_to_le16(0x0000); | |
640 | target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21); | |
641 | target->nfs.mode = 0; | |
642 | return 0; | |
643 | } | |
644 | ||
645 | int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server, | |
646 | struct inode *dir, | |
647 | const char *path, | |
648 | __le32 info_mask, | |
649 | const struct nw_modify_dos_info *info) | |
650 | { | |
651 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
652 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
653 | int result; | |
654 | ||
655 | ncp_init_request(server); | |
656 | ncp_add_byte(server, 7); /* subfunction */ | |
657 | ncp_add_byte(server, server->name_space[volnum]); | |
658 | ncp_add_byte(server, 0); /* reserved */ | |
659 | ncp_add_word(server, cpu_to_le16(0x8006)); /* search attribs: all */ | |
660 | ||
661 | ncp_add_dword(server, info_mask); | |
662 | ncp_add_mem(server, info, sizeof(*info)); | |
663 | ncp_add_handle_path(server, volnum, dirent, 1, path); | |
664 | ||
665 | result = ncp_request(server, 87); | |
666 | ncp_unlock_server(server); | |
667 | return result; | |
668 | } | |
669 | ||
670 | int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, | |
671 | struct inode *dir, | |
672 | __le32 info_mask, | |
673 | const struct nw_modify_dos_info *info) | |
674 | { | |
675 | return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL, | |
676 | info_mask, info); | |
677 | } | |
678 | ||
679 | #ifdef CONFIG_NCPFS_NFS_NS | |
680 | int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent, | |
681 | __u32 mode, __u32 rdev) | |
682 | ||
683 | { | |
684 | int result = 0; | |
685 | ||
2e54eb96 | 686 | ncp_init_request(server); |
1da177e4 | 687 | if (server->name_space[volnum] == NW_NS_NFS) { |
1da177e4 LT |
688 | ncp_add_byte(server, 25); /* subfunction */ |
689 | ncp_add_byte(server, server->name_space[volnum]); | |
690 | ncp_add_byte(server, NW_NS_NFS); | |
691 | ncp_add_byte(server, volnum); | |
692 | ncp_add_dword(server, dirent); | |
693 | /* we must always operate on both nlinks and rdev, otherwise | |
694 | rdev is not set */ | |
695 | ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV); | |
696 | ncp_add_dword_lh(server, mode); | |
697 | ncp_add_dword_lh(server, 1); /* nlinks */ | |
698 | ncp_add_dword_lh(server, rdev); | |
699 | result = ncp_request(server, 87); | |
1da177e4 | 700 | } |
2e54eb96 | 701 | ncp_unlock_server(server); |
1da177e4 LT |
702 | return result; |
703 | } | |
704 | #endif | |
705 | ||
706 | ||
707 | static int | |
708 | ncp_DeleteNSEntry(struct ncp_server *server, | |
709 | __u8 have_dir_base, __u8 volnum, __le32 dirent, | |
2e54eb96 | 710 | const char* name, __u8 ns, __le16 attr) |
1da177e4 LT |
711 | { |
712 | int result; | |
713 | ||
714 | ncp_init_request(server); | |
715 | ncp_add_byte(server, 8); /* subfunction */ | |
716 | ncp_add_byte(server, ns); | |
717 | ncp_add_byte(server, 0); /* reserved */ | |
718 | ncp_add_word(server, attr); /* search attribs: all */ | |
719 | ncp_add_handle_path(server, volnum, dirent, have_dir_base, name); | |
720 | ||
721 | result = ncp_request(server, 87); | |
722 | ncp_unlock_server(server); | |
723 | return result; | |
724 | } | |
725 | ||
726 | int | |
727 | ncp_del_file_or_subdir2(struct ncp_server *server, | |
728 | struct dentry *dentry) | |
729 | { | |
730 | struct inode *inode = dentry->d_inode; | |
731 | __u8 volnum; | |
732 | __le32 dirent; | |
733 | ||
734 | if (!inode) { | |
1da177e4 LT |
735 | return 0xFF; /* Any error */ |
736 | } | |
737 | volnum = NCP_FINFO(inode)->volNumber; | |
738 | dirent = NCP_FINFO(inode)->DosDirNum; | |
739 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006)); | |
740 | } | |
741 | ||
742 | int | |
743 | ncp_del_file_or_subdir(struct ncp_server *server, | |
2e54eb96 | 744 | struct inode *dir, const char *name) |
1da177e4 LT |
745 | { |
746 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
747 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
2e54eb96 | 748 | int name_space; |
1da177e4 | 749 | |
2e54eb96 | 750 | name_space = server->name_space[volnum]; |
1da177e4 | 751 | #ifdef CONFIG_NCPFS_NFS_NS |
2e54eb96 | 752 | if (name_space == NW_NS_NFS) |
1da177e4 LT |
753 | { |
754 | int result; | |
755 | ||
2e54eb96 | 756 | result=ncp_obtain_DOS_dir_base(server, name_space, volnum, dirent, name, &dirent); |
1da177e4 | 757 | if (result) return result; |
2e54eb96 PV |
758 | name = NULL; |
759 | name_space = NW_NS_DOS; | |
1da177e4 | 760 | } |
1da177e4 | 761 | #endif /* CONFIG_NCPFS_NFS_NS */ |
2e54eb96 | 762 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, name_space, cpu_to_le16(0x8006)); |
1da177e4 LT |
763 | } |
764 | ||
765 | static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6]) | |
766 | { | |
767 | __le16 *dest = (__le16 *) ret; | |
768 | dest[1] = cpu_to_le16(v0); | |
769 | dest[2] = cpu_to_le16(v1); | |
770 | dest[0] = cpu_to_le16(v0 + 1); | |
771 | return; | |
772 | } | |
773 | ||
774 | /* If both dir and name are NULL, then in target there's already a | |
775 | looked-up entry that wants to be opened. */ | |
776 | int ncp_open_create_file_or_subdir(struct ncp_server *server, | |
2e54eb96 | 777 | struct inode *dir, const char *name, |
1da177e4 LT |
778 | int open_create_mode, |
779 | __le32 create_attributes, | |
780 | __le16 desired_acc_rights, | |
781 | struct ncp_entry_info *target) | |
782 | { | |
783 | __le16 search_attribs = cpu_to_le16(0x0006); | |
784 | __u8 volnum; | |
785 | __le32 dirent; | |
786 | int result; | |
787 | ||
788 | volnum = NCP_FINFO(dir)->volNumber; | |
789 | dirent = NCP_FINFO(dir)->dirEntNum; | |
790 | ||
791 | if ((create_attributes & aDIR) != 0) { | |
792 | search_attribs |= cpu_to_le16(0x8000); | |
793 | } | |
794 | ncp_init_request(server); | |
795 | ncp_add_byte(server, 1); /* subfunction */ | |
796 | ncp_add_byte(server, server->name_space[volnum]); | |
797 | ncp_add_byte(server, open_create_mode); | |
798 | ncp_add_word(server, search_attribs); | |
799 | ncp_add_dword(server, RIM_ALL); | |
800 | ncp_add_dword(server, create_attributes); | |
801 | /* The desired acc rights seem to be the inherited rights mask | |
802 | for directories */ | |
803 | ncp_add_word(server, desired_acc_rights); | |
804 | ncp_add_handle_path(server, volnum, dirent, 1, name); | |
805 | ||
806 | if ((result = ncp_request(server, 87)) != 0) | |
807 | goto out; | |
808 | if (!(create_attributes & aDIR)) | |
809 | target->opened = 1; | |
810 | ||
811 | /* in target there's a new finfo to fill */ | |
812 | ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i)); | |
813 | target->volume = target->i.volNumber; | |
814 | ConvertToNWfromDWORD(ncp_reply_le16(server, 0), | |
815 | ncp_reply_le16(server, 2), | |
816 | target->file_handle); | |
817 | ||
818 | ncp_unlock_server(server); | |
819 | ||
820 | (void)ncp_obtain_nfs_info(server, &(target->i)); | |
821 | return 0; | |
822 | ||
823 | out: | |
824 | ncp_unlock_server(server); | |
825 | return result; | |
826 | } | |
827 | ||
828 | int | |
829 | ncp_initialize_search(struct ncp_server *server, struct inode *dir, | |
830 | struct nw_search_sequence *target) | |
831 | { | |
832 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
833 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
834 | int result; | |
835 | ||
836 | ncp_init_request(server); | |
837 | ncp_add_byte(server, 2); /* subfunction */ | |
838 | ncp_add_byte(server, server->name_space[volnum]); | |
839 | ncp_add_byte(server, 0); /* reserved */ | |
840 | ncp_add_handle_path(server, volnum, dirent, 1, NULL); | |
841 | ||
842 | result = ncp_request(server, 87); | |
843 | if (result) | |
844 | goto out; | |
845 | memcpy(target, ncp_reply_data(server, 0), sizeof(*target)); | |
846 | ||
847 | out: | |
848 | ncp_unlock_server(server); | |
849 | return result; | |
850 | } | |
851 | ||
1da177e4 LT |
852 | int ncp_search_for_fileset(struct ncp_server *server, |
853 | struct nw_search_sequence *seq, | |
854 | int* more, | |
855 | int* cnt, | |
856 | char* buffer, | |
857 | size_t bufsize, | |
858 | char** rbuf, | |
859 | size_t* rsize) | |
860 | { | |
861 | int result; | |
862 | ||
863 | ncp_init_request(server); | |
864 | ncp_add_byte(server, 20); | |
865 | ncp_add_byte(server, server->name_space[seq->volNumber]); | |
866 | ncp_add_byte(server, 0); /* datastream */ | |
867 | ncp_add_word(server, cpu_to_le16(0x8006)); | |
868 | ncp_add_dword(server, RIM_ALL); | |
869 | ncp_add_word(server, cpu_to_le16(32767)); /* max returned items */ | |
870 | ncp_add_mem(server, seq, 9); | |
871 | #ifdef CONFIG_NCPFS_NFS_NS | |
872 | if (server->name_space[seq->volNumber] == NW_NS_NFS) { | |
873 | ncp_add_byte(server, 0); /* 0 byte pattern */ | |
874 | } else | |
875 | #endif | |
876 | { | |
877 | ncp_add_byte(server, 2); /* 2 byte pattern */ | |
878 | ncp_add_byte(server, 0xff); /* following is a wildcard */ | |
879 | ncp_add_byte(server, '*'); | |
880 | } | |
881 | result = ncp_request2(server, 87, buffer, bufsize); | |
882 | if (result) { | |
883 | ncp_unlock_server(server); | |
884 | return result; | |
885 | } | |
886 | if (server->ncp_reply_size < 12) { | |
887 | ncp_unlock_server(server); | |
888 | return 0xFF; | |
889 | } | |
890 | *rsize = server->ncp_reply_size - 12; | |
891 | ncp_unlock_server(server); | |
892 | buffer = buffer + sizeof(struct ncp_reply_header); | |
893 | *rbuf = buffer + 12; | |
894 | *cnt = WVAL_LH(buffer + 10); | |
895 | *more = BVAL(buffer + 9); | |
896 | memcpy(seq, buffer, 9); | |
897 | return 0; | |
898 | } | |
899 | ||
900 | static int | |
901 | ncp_RenameNSEntry(struct ncp_server *server, | |
2e54eb96 PV |
902 | struct inode *old_dir, const char *old_name, __le16 old_type, |
903 | struct inode *new_dir, const char *new_name) | |
1da177e4 LT |
904 | { |
905 | int result = -EINVAL; | |
906 | ||
907 | if ((old_dir == NULL) || (old_name == NULL) || | |
908 | (new_dir == NULL) || (new_name == NULL)) | |
909 | goto out; | |
910 | ||
911 | ncp_init_request(server); | |
912 | ncp_add_byte(server, 4); /* subfunction */ | |
913 | ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]); | |
914 | ncp_add_byte(server, 1); /* rename flag */ | |
915 | ncp_add_word(server, old_type); /* search attributes */ | |
916 | ||
917 | /* source Handle Path */ | |
918 | ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber); | |
919 | ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum); | |
920 | ncp_add_byte(server, 1); | |
921 | ncp_add_byte(server, 1); /* 1 source component */ | |
922 | ||
923 | /* dest Handle Path */ | |
924 | ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber); | |
925 | ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum); | |
926 | ncp_add_byte(server, 1); | |
927 | ncp_add_byte(server, 1); /* 1 destination component */ | |
928 | ||
929 | /* source path string */ | |
930 | ncp_add_pstring(server, old_name); | |
931 | /* dest path string */ | |
932 | ncp_add_pstring(server, new_name); | |
933 | ||
934 | result = ncp_request(server, 87); | |
935 | ncp_unlock_server(server); | |
936 | out: | |
937 | return result; | |
938 | } | |
939 | ||
940 | int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, | |
2e54eb96 PV |
941 | struct inode *old_dir, const char *old_name, |
942 | struct inode *new_dir, const char *new_name) | |
1da177e4 LT |
943 | { |
944 | int result; | |
945 | __le16 old_type = cpu_to_le16(0x06); | |
946 | ||
947 | /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */ | |
948 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
949 | new_dir, new_name); | |
950 | if (result == 0xFF) /* File Not Found, try directory */ | |
951 | { | |
952 | old_type = cpu_to_le16(0x16); | |
953 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
954 | new_dir, new_name); | |
955 | } | |
956 | if (result != 0x92) return result; /* All except NO_FILES_RENAMED */ | |
957 | result = ncp_del_file_or_subdir(server, new_dir, new_name); | |
958 | if (result != 0) return -EACCES; | |
959 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
960 | new_dir, new_name); | |
961 | return result; | |
962 | } | |
963 | ||
964 | ||
965 | /* We have to transfer to/from user space */ | |
966 | int | |
967 | ncp_read_kernel(struct ncp_server *server, const char *file_id, | |
968 | __u32 offset, __u16 to_read, char *target, int *bytes_read) | |
969 | { | |
2e54eb96 | 970 | const char *source; |
1da177e4 LT |
971 | int result; |
972 | ||
973 | ncp_init_request(server); | |
974 | ncp_add_byte(server, 0); | |
975 | ncp_add_mem(server, file_id, 6); | |
976 | ncp_add_be32(server, offset); | |
977 | ncp_add_be16(server, to_read); | |
978 | ||
979 | if ((result = ncp_request(server, 72)) != 0) { | |
980 | goto out; | |
981 | } | |
982 | *bytes_read = ncp_reply_be16(server, 0); | |
983 | source = ncp_reply_data(server, 2 + (offset & 1)); | |
984 | ||
985 | memcpy(target, source, *bytes_read); | |
986 | out: | |
987 | ncp_unlock_server(server); | |
988 | return result; | |
989 | } | |
990 | ||
991 | /* There is a problem... egrep and some other silly tools do: | |
992 | x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768); | |
993 | read(<ncpfs fd>, x, 32768); | |
994 | Now copying read result by copy_to_user causes pagefault. This pagefault | |
995 | could not be handled because of server was locked due to read. So we have | |
996 | to use temporary buffer. So ncp_unlock_server must be done before | |
997 | copy_to_user (and for write, copy_from_user must be done before | |
998 | ncp_init_request... same applies for send raw packet ioctl). Because of | |
999 | file is normally read in bigger chunks, caller provides kmalloced | |
1000 | (vmalloced) chunk of memory with size >= to_read... | |
1001 | */ | |
1002 | int | |
1003 | ncp_read_bounce(struct ncp_server *server, const char *file_id, | |
1004 | __u32 offset, __u16 to_read, char __user *target, int *bytes_read, | |
1005 | void* bounce, __u32 bufsize) | |
1006 | { | |
1007 | int result; | |
1008 | ||
1009 | ncp_init_request(server); | |
1010 | ncp_add_byte(server, 0); | |
1011 | ncp_add_mem(server, file_id, 6); | |
1012 | ncp_add_be32(server, offset); | |
1013 | ncp_add_be16(server, to_read); | |
1014 | result = ncp_request2(server, 72, bounce, bufsize); | |
1015 | ncp_unlock_server(server); | |
1016 | if (!result) { | |
97a4feb4 HH |
1017 | int len = get_unaligned_be16((char *)bounce + |
1018 | sizeof(struct ncp_reply_header)); | |
1da177e4 LT |
1019 | result = -EIO; |
1020 | if (len <= to_read) { | |
1021 | char* source; | |
1022 | ||
1023 | source = (char*)bounce + | |
1024 | sizeof(struct ncp_reply_header) + 2 + | |
1025 | (offset & 1); | |
1026 | *bytes_read = len; | |
1027 | result = 0; | |
1028 | if (copy_to_user(target, source, len)) | |
1029 | result = -EFAULT; | |
1030 | } | |
1031 | } | |
1032 | return result; | |
1033 | } | |
1034 | ||
1035 | int | |
1036 | ncp_write_kernel(struct ncp_server *server, const char *file_id, | |
1037 | __u32 offset, __u16 to_write, | |
1038 | const char *source, int *bytes_written) | |
1039 | { | |
1040 | int result; | |
1041 | ||
1042 | ncp_init_request(server); | |
1043 | ncp_add_byte(server, 0); | |
1044 | ncp_add_mem(server, file_id, 6); | |
1045 | ncp_add_be32(server, offset); | |
1046 | ncp_add_be16(server, to_write); | |
1047 | ncp_add_mem(server, source, to_write); | |
1048 | ||
1049 | if ((result = ncp_request(server, 73)) == 0) | |
1050 | *bytes_written = to_write; | |
1051 | ncp_unlock_server(server); | |
1052 | return result; | |
1053 | } | |
1054 | ||
1055 | #ifdef CONFIG_NCPFS_IOCTL_LOCKING | |
1056 | int | |
1057 | ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id, | |
1058 | __u8 locktype, __u32 offset, __u32 length, __u16 timeout) | |
1059 | { | |
1060 | int result; | |
1061 | ||
1062 | ncp_init_request(server); | |
1063 | ncp_add_byte(server, locktype); | |
1064 | ncp_add_mem(server, file_id, 6); | |
1065 | ncp_add_be32(server, offset); | |
1066 | ncp_add_be32(server, length); | |
1067 | ncp_add_be16(server, timeout); | |
1068 | ||
1069 | if ((result = ncp_request(server, 0x1A)) != 0) | |
1070 | { | |
1071 | ncp_unlock_server(server); | |
1072 | return result; | |
1073 | } | |
1074 | ncp_unlock_server(server); | |
1075 | return 0; | |
1076 | } | |
1077 | ||
1078 | int | |
1079 | ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id, | |
1080 | __u32 offset, __u32 length) | |
1081 | { | |
1082 | int result; | |
1083 | ||
1084 | ncp_init_request(server); | |
1085 | ncp_add_byte(server, 0); /* who knows... lanalyzer says that */ | |
1086 | ncp_add_mem(server, file_id, 6); | |
1087 | ncp_add_be32(server, offset); | |
1088 | ncp_add_be32(server, length); | |
1089 | ||
1090 | if ((result = ncp_request(server, 0x1E)) != 0) | |
1091 | { | |
1092 | ncp_unlock_server(server); | |
1093 | return result; | |
1094 | } | |
1095 | ncp_unlock_server(server); | |
1096 | return 0; | |
1097 | } | |
1098 | #endif /* CONFIG_NCPFS_IOCTL_LOCKING */ | |
1099 | ||
1100 | #ifdef CONFIG_NCPFS_NLS | |
1101 | /* This are the NLS conversion routines with inspirations and code parts | |
1102 | * from the vfat file system and hints from Petr Vandrovec. | |
1103 | */ | |
1104 | ||
1105 | int | |
1106 | ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen, | |
1107 | const unsigned char *iname, unsigned int ilen, int cc) | |
1108 | { | |
1109 | struct nls_table *in = server->nls_io; | |
1110 | struct nls_table *out = server->nls_vol; | |
1111 | unsigned char *vname_start; | |
1112 | unsigned char *vname_end; | |
1113 | const unsigned char *iname_end; | |
1114 | ||
1115 | iname_end = iname + ilen; | |
1116 | vname_start = vname; | |
1117 | vname_end = vname + *vlen - 1; | |
1118 | ||
1119 | while (iname < iname_end) { | |
1120 | int chl; | |
1121 | wchar_t ec; | |
1122 | ||
1123 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { | |
1124 | int k; | |
74675a58 | 1125 | unicode_t u; |
1da177e4 | 1126 | |
74675a58 AS |
1127 | k = utf8_to_utf32(iname, iname_end - iname, &u); |
1128 | if (k < 0 || u > MAX_WCHAR_T) | |
1da177e4 LT |
1129 | return -EINVAL; |
1130 | iname += k; | |
74675a58 | 1131 | ec = u; |
1da177e4 LT |
1132 | } else { |
1133 | if (*iname == NCP_ESC) { | |
1134 | int k; | |
1135 | ||
1136 | if (iname_end - iname < 5) | |
1137 | goto nospec; | |
1138 | ||
1139 | ec = 0; | |
1140 | for (k = 1; k < 5; k++) { | |
1141 | unsigned char nc; | |
1142 | ||
1143 | nc = iname[k] - '0'; | |
1144 | if (nc >= 10) { | |
1145 | nc -= 'A' - '0' - 10; | |
1146 | if ((nc < 10) || (nc > 15)) { | |
1147 | goto nospec; | |
1148 | } | |
1149 | } | |
1150 | ec = (ec << 4) | nc; | |
1151 | } | |
1152 | iname += 5; | |
1153 | } else { | |
1154 | nospec:; | |
1155 | if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0) | |
1156 | return chl; | |
1157 | iname += chl; | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | /* unitoupper should be here! */ | |
1162 | ||
1163 | chl = out->uni2char(ec, vname, vname_end - vname); | |
1164 | if (chl < 0) | |
1165 | return chl; | |
1166 | ||
1167 | /* this is wrong... */ | |
1168 | if (cc) { | |
1169 | int chi; | |
1170 | ||
1171 | for (chi = 0; chi < chl; chi++){ | |
1172 | vname[chi] = ncp_toupper(out, vname[chi]); | |
1173 | } | |
1174 | } | |
1175 | vname += chl; | |
1176 | } | |
1177 | ||
1178 | *vname = 0; | |
1179 | *vlen = vname - vname_start; | |
1180 | return 0; | |
1181 | } | |
1182 | ||
1183 | int | |
1184 | ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen, | |
1185 | const unsigned char *vname, unsigned int vlen, int cc) | |
1186 | { | |
1187 | struct nls_table *in = server->nls_vol; | |
1188 | struct nls_table *out = server->nls_io; | |
1189 | const unsigned char *vname_end; | |
1190 | unsigned char *iname_start; | |
1191 | unsigned char *iname_end; | |
1192 | unsigned char *vname_cc; | |
1193 | int err; | |
1194 | ||
1195 | vname_cc = NULL; | |
1196 | ||
1197 | if (cc) { | |
1198 | int i; | |
1199 | ||
1200 | /* this is wrong! */ | |
1201 | vname_cc = kmalloc(vlen, GFP_KERNEL); | |
1202 | if (!vname_cc) | |
1203 | return -ENOMEM; | |
1204 | for (i = 0; i < vlen; i++) | |
1205 | vname_cc[i] = ncp_tolower(in, vname[i]); | |
1206 | vname = vname_cc; | |
1207 | } | |
1208 | ||
1209 | iname_start = iname; | |
1210 | iname_end = iname + *ilen - 1; | |
1211 | vname_end = vname + vlen; | |
1212 | ||
1213 | while (vname < vname_end) { | |
1214 | wchar_t ec; | |
1215 | int chl; | |
1216 | ||
1217 | if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) { | |
1218 | err = chl; | |
1219 | goto quit; | |
1220 | } | |
1221 | vname += chl; | |
1222 | ||
1223 | /* unitolower should be here! */ | |
1224 | ||
1225 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { | |
1226 | int k; | |
1227 | ||
74675a58 | 1228 | k = utf32_to_utf8(ec, iname, iname_end - iname); |
1da177e4 LT |
1229 | if (k < 0) { |
1230 | err = -ENAMETOOLONG; | |
1231 | goto quit; | |
1232 | } | |
1233 | iname += k; | |
1234 | } else { | |
1235 | if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) { | |
1236 | iname += chl; | |
1237 | } else { | |
1238 | int k; | |
1239 | ||
1240 | if (iname_end - iname < 5) { | |
1241 | err = -ENAMETOOLONG; | |
1242 | goto quit; | |
1243 | } | |
1244 | *iname = NCP_ESC; | |
1245 | for (k = 4; k > 0; k--) { | |
1246 | unsigned char v; | |
1247 | ||
1248 | v = (ec & 0xF) + '0'; | |
1249 | if (v > '9') { | |
1250 | v += 'A' - '9' - 1; | |
1251 | } | |
1252 | iname[k] = v; | |
1253 | ec >>= 4; | |
1254 | } | |
1255 | iname += 5; | |
1256 | } | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | *iname = 0; | |
1261 | *ilen = iname - iname_start; | |
1262 | err = 0; | |
1263 | quit:; | |
1264 | if (cc) | |
1265 | kfree(vname_cc); | |
1266 | return err; | |
1267 | } | |
1268 | ||
1269 | #else | |
1270 | ||
1271 | int | |
1272 | ncp__io2vol(unsigned char *vname, unsigned int *vlen, | |
1273 | const unsigned char *iname, unsigned int ilen, int cc) | |
1274 | { | |
1275 | int i; | |
1276 | ||
1277 | if (*vlen <= ilen) | |
1278 | return -ENAMETOOLONG; | |
1279 | ||
1280 | if (cc) | |
1281 | for (i = 0; i < ilen; i++) { | |
1282 | *vname = toupper(*iname); | |
1283 | vname++; | |
1284 | iname++; | |
1285 | } | |
1286 | else { | |
1287 | memmove(vname, iname, ilen); | |
1288 | vname += ilen; | |
1289 | } | |
1290 | ||
1291 | *vlen = ilen; | |
1292 | *vname = 0; | |
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | int | |
1297 | ncp__vol2io(unsigned char *iname, unsigned int *ilen, | |
1298 | const unsigned char *vname, unsigned int vlen, int cc) | |
1299 | { | |
1300 | int i; | |
1301 | ||
1302 | if (*ilen <= vlen) | |
1303 | return -ENAMETOOLONG; | |
1304 | ||
1305 | if (cc) | |
1306 | for (i = 0; i < vlen; i++) { | |
1307 | *iname = tolower(*vname); | |
1308 | iname++; | |
1309 | vname++; | |
1310 | } | |
1311 | else { | |
1312 | memmove(iname, vname, vlen); | |
1313 | iname += vlen; | |
1314 | } | |
1315 | ||
1316 | *ilen = vlen; | |
1317 | *iname = 0; | |
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | #endif |