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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 | |
12 | |
13 | |
14 | #include "ncplib_kernel.h" |
15 | |
16 | static inline void assert_server_locked(struct ncp_server *server) |
17 | { |
18 | if (server->lock == 0) { |
19 | DPRINTK("ncpfs: server not locked!\n"); |
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) { |
78 | DPRINTK("ncpfs: string too long: %s\n", s); |
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 * |
105 | ncp_reply_data(struct ncp_server *server, int offset) |
106 | { |
107 | return &(server->packet[sizeof(struct ncp_reply_header) + offset]); |
108 | } |
109 | |
110 | static inline u8 BVAL(void *data) |
111 | { |
112 | return *(u8 *)data; |
113 | } |
114 | |
115 | static u8 ncp_reply_byte(struct ncp_server *server, int offset) |
116 | { |
117 | return *(u8 *)ncp_reply_data(server, offset); |
118 | } |
119 | |
120 | static inline u16 WVAL_LH(void *data) |
121 | { |
122 | return get_unaligned_le16(data); |
123 | } |
124 | |
125 | static u16 |
126 | ncp_reply_le16(struct ncp_server *server, int offset) |
127 | { |
128 | return get_unaligned_le16(ncp_reply_data(server, offset)); |
129 | } |
130 | |
131 | static u16 |
132 | ncp_reply_be16(struct ncp_server *server, int offset) |
133 | { |
134 | return get_unaligned_be16(ncp_reply_data(server, offset)); |
135 | } |
136 | |
137 | static inline u32 DVAL_LH(void *data) |
138 | { |
139 | return get_unaligned_le32(data); |
140 | } |
141 | |
142 | static __le32 |
143 | ncp_reply_dword(struct ncp_server *server, int offset) |
144 | { |
145 | return get_unaligned((__le32 *)ncp_reply_data(server, offset)); |
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) { |
228 | DPRINTK("ncpfs: volume name too long: %d\n", len); |
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) { |
262 | DPRINTK("ncpfs: volume name too long: %d\n", len); |
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; |
292 | mutex_lock(&NCP_FINFO(inode)->open_mutex); |
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) |
298 | PPRINTK("ncp_make_closed: volnum=%d, dirent=%u, error=%d\n", |
299 | NCP_FINFO(inode)->volNumber, |
300 | NCP_FINFO(inode)->dirEntNum, err); |
301 | } |
302 | mutex_unlock(&NCP_FINFO(inode)->open_mutex); |
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 | |
352 | void ncp_extract_file_info(void *structure, struct nw_info_struct *target) |
353 | { |
354 | __u8 *name_len; |
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 |
367 | static inline void ncp_extract_nfs_info(unsigned char *structure, |
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); |
397 | DPRINTK(KERN_DEBUG |
398 | "ncp_obtain_nfs_info: (%s) mode=0%o, rdev=0x%x\n", |
399 | target->entryName, target->nfs.mode, |
400 | target->nfs.rdev); |
401 | } else { |
402 | target->nfs.mode = 0; |
403 | target->nfs.rdev = 0; |
404 | } |
405 | ncp_unlock_server(server); |
406 | |
407 | } else |
408 | #endif |
409 | { |
410 | target->nfs.mode = 0; |
411 | target->nfs.rdev = 0; |
412 | } |
413 | return result; |
414 | } |
415 | |
416 | /* |
417 | * Returns information for a (one-component) name relative to |
418 | * the specified directory. |
419 | */ |
420 | int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path, |
421 | struct nw_info_struct *target) |
422 | { |
423 | __u8 volnum = NCP_FINFO(dir)->volNumber; |
424 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; |
425 | int result; |
426 | |
427 | if (target == NULL) { |
428 | printk(KERN_ERR "ncp_obtain_info: invalid call\n"); |
429 | return -EINVAL; |
430 | } |
431 | ncp_init_request(server); |
432 | ncp_add_byte(server, 6); /* subfunction */ |
433 | ncp_add_byte(server, server->name_space[volnum]); |
434 | ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */ |
435 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ |
436 | ncp_add_dword(server, RIM_ALL); |
437 | ncp_add_handle_path(server, volnum, dirent, 1, path); |
438 | |
439 | if ((result = ncp_request(server, 87)) != 0) |
440 | goto out; |
441 | ncp_extract_file_info(ncp_reply_data(server, 0), target); |
442 | ncp_unlock_server(server); |
443 | |
444 | result = ncp_obtain_nfs_info(server, target); |
445 | return result; |
446 | |
447 | out: |
448 | ncp_unlock_server(server); |
449 | return result; |
450 | } |
451 | |
452 | #ifdef CONFIG_NCPFS_NFS_NS |
453 | static int |
454 | ncp_obtain_DOS_dir_base(struct ncp_server *server, |
455 | __u8 volnum, __le32 dirent, |
456 | char *path, /* At most 1 component */ |
457 | __le32 *DOS_dir_base) |
458 | { |
459 | int result; |
460 | |
461 | ncp_init_request(server); |
462 | ncp_add_byte(server, 6); /* subfunction */ |
463 | ncp_add_byte(server, server->name_space[volnum]); |
464 | ncp_add_byte(server, server->name_space[volnum]); |
465 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ |
466 | ncp_add_dword(server, RIM_DIRECTORY); |
467 | ncp_add_handle_path(server, volnum, dirent, 1, path); |
468 | |
469 | if ((result = ncp_request(server, 87)) == 0) |
470 | { |
471 | if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34); |
472 | } |
473 | ncp_unlock_server(server); |
474 | return result; |
475 | } |
476 | #endif /* CONFIG_NCPFS_NFS_NS */ |
477 | |
478 | static inline int |
479 | ncp_get_known_namespace(struct ncp_server *server, __u8 volume) |
480 | { |
481 | #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) |
482 | int result; |
483 | __u8 *namespace; |
484 | __u16 no_namespaces; |
485 | |
486 | ncp_init_request(server); |
487 | ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */ |
488 | ncp_add_word(server, 0); |
489 | ncp_add_byte(server, volume); |
490 | |
491 | if ((result = ncp_request(server, 87)) != 0) { |
492 | ncp_unlock_server(server); |
493 | return NW_NS_DOS; /* not result ?? */ |
494 | } |
495 | |
496 | result = NW_NS_DOS; |
497 | no_namespaces = ncp_reply_le16(server, 0); |
498 | namespace = ncp_reply_data(server, 2); |
499 | |
500 | while (no_namespaces > 0) { |
501 | DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume); |
502 | |
503 | #ifdef CONFIG_NCPFS_NFS_NS |
504 | if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS)) |
505 | { |
506 | result = NW_NS_NFS; |
507 | break; |
508 | } |
509 | #endif /* CONFIG_NCPFS_NFS_NS */ |
510 | #ifdef CONFIG_NCPFS_OS2_NS |
511 | if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2)) |
512 | { |
513 | result = NW_NS_OS2; |
514 | } |
515 | #endif /* CONFIG_NCPFS_OS2_NS */ |
516 | namespace += 1; |
517 | no_namespaces -= 1; |
518 | } |
519 | ncp_unlock_server(server); |
520 | return result; |
521 | #else /* neither OS2 nor NFS - only DOS */ |
522 | return NW_NS_DOS; |
523 | #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */ |
524 | } |
525 | |
526 | static int |
527 | ncp_ObtainSpecificDirBase(struct ncp_server *server, |
528 | __u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base, |
529 | char *path, /* At most 1 component */ |
530 | __le32 *dirEntNum, __le32 *DosDirNum) |
531 | { |
532 | int result; |
533 | |
534 | ncp_init_request(server); |
535 | ncp_add_byte(server, 6); /* subfunction */ |
536 | ncp_add_byte(server, nsSrc); |
537 | ncp_add_byte(server, nsDst); |
538 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ |
539 | ncp_add_dword(server, RIM_ALL); |
540 | ncp_add_handle_path(server, vol_num, dir_base, 1, path); |
541 | |
542 | if ((result = ncp_request(server, 87)) != 0) |
543 | { |
544 | ncp_unlock_server(server); |
545 | return result; |
546 | } |
547 | |
548 | if (dirEntNum) |
549 | *dirEntNum = ncp_reply_dword(server, 0x30); |
550 | if (DosDirNum) |
551 | *DosDirNum = ncp_reply_dword(server, 0x34); |
552 | ncp_unlock_server(server); |
553 | return 0; |
554 | } |
555 | |
556 | int |
557 | ncp_mount_subdir(struct ncp_server *server, |
558 | __u8 volNumber, __u8 srcNS, __le32 dirEntNum, |
559 | __u32* volume, __le32* newDirEnt, __le32* newDosEnt) |
560 | { |
561 | int dstNS; |
562 | int result; |
563 | |
564 | dstNS = ncp_get_known_namespace(server, volNumber); |
565 | if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber, |
566 | dirEntNum, NULL, newDirEnt, newDosEnt)) != 0) |
567 | { |
568 | return result; |
569 | } |
570 | server->name_space[volNumber] = dstNS; |
571 | *volume = volNumber; |
572 | server->m.mounted_vol[1] = 0; |
573 | server->m.mounted_vol[0] = 'X'; |
574 | return 0; |
575 | } |
576 | |
577 | int |
578 | ncp_get_volume_root(struct ncp_server *server, const char *volname, |
579 | __u32* volume, __le32* dirent, __le32* dosdirent) |
580 | { |
581 | int result; |
582 | __u8 volnum; |
583 | |
584 | DPRINTK("ncp_get_volume_root: looking up vol %s\n", volname); |
585 | |
586 | ncp_init_request(server); |
587 | ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */ |
588 | ncp_add_byte(server, 0); /* DOS namespace */ |
589 | ncp_add_byte(server, 0); /* reserved */ |
590 | ncp_add_byte(server, 0); /* reserved */ |
591 | ncp_add_byte(server, 0); /* reserved */ |
592 | |
593 | ncp_add_byte(server, 0); /* faked volume number */ |
594 | ncp_add_dword(server, 0); /* faked dir_base */ |
595 | ncp_add_byte(server, 0xff); /* Don't have a dir_base */ |
596 | ncp_add_byte(server, 1); /* 1 path component */ |
597 | ncp_add_pstring(server, volname); |
598 | |
599 | if ((result = ncp_request(server, 87)) != 0) { |
600 | ncp_unlock_server(server); |
601 | return result; |
602 | } |
603 | *dirent = *dosdirent = ncp_reply_dword(server, 4); |
604 | volnum = ncp_reply_byte(server, 8); |
605 | ncp_unlock_server(server); |
606 | *volume = volnum; |
607 | |
608 | server->name_space[volnum] = ncp_get_known_namespace(server, volnum); |
609 | |
610 | DPRINTK("lookup_vol: namespace[%d] = %d\n", |
611 | volnum, server->name_space[volnum]); |
612 | |
613 | return 0; |
614 | } |
615 | |
616 | int |
617 | ncp_lookup_volume(struct ncp_server *server, const char *volname, |
618 | struct nw_info_struct *target) |
619 | { |
620 | int result; |
621 | |
622 | memset(target, 0, sizeof(*target)); |
623 | result = ncp_get_volume_root(server, volname, |
624 | &target->volNumber, &target->dirEntNum, &target->DosDirNum); |
625 | if (result) { |
626 | return result; |
627 | } |
628 | target->nameLen = strlen(volname); |
629 | memcpy(target->entryName, volname, target->nameLen+1); |
630 | target->attributes = aDIR; |
631 | /* set dates to Jan 1, 1986 00:00 */ |
632 | target->creationTime = target->modifyTime = cpu_to_le16(0x0000); |
633 | target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21); |
634 | target->nfs.mode = 0; |
635 | return 0; |
636 | } |
637 | |
638 | int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server, |
639 | struct inode *dir, |
640 | const char *path, |
641 | __le32 info_mask, |
642 | const struct nw_modify_dos_info *info) |
643 | { |
644 | __u8 volnum = NCP_FINFO(dir)->volNumber; |
645 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; |
646 | int result; |
647 | |
648 | ncp_init_request(server); |
649 | ncp_add_byte(server, 7); /* subfunction */ |
650 | ncp_add_byte(server, server->name_space[volnum]); |
651 | ncp_add_byte(server, 0); /* reserved */ |
652 | ncp_add_word(server, cpu_to_le16(0x8006)); /* search attribs: all */ |
653 | |
654 | ncp_add_dword(server, info_mask); |
655 | ncp_add_mem(server, info, sizeof(*info)); |
656 | ncp_add_handle_path(server, volnum, dirent, 1, path); |
657 | |
658 | result = ncp_request(server, 87); |
659 | ncp_unlock_server(server); |
660 | return result; |
661 | } |
662 | |
663 | int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, |
664 | struct inode *dir, |
665 | __le32 info_mask, |
666 | const struct nw_modify_dos_info *info) |
667 | { |
668 | return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL, |
669 | info_mask, info); |
670 | } |
671 | |
672 | #ifdef CONFIG_NCPFS_NFS_NS |
673 | int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent, |
674 | __u32 mode, __u32 rdev) |
675 | |
676 | { |
677 | int result = 0; |
678 | |
679 | if (server->name_space[volnum] == NW_NS_NFS) { |
680 | ncp_init_request(server); |
681 | ncp_add_byte(server, 25); /* subfunction */ |
682 | ncp_add_byte(server, server->name_space[volnum]); |
683 | ncp_add_byte(server, NW_NS_NFS); |
684 | ncp_add_byte(server, volnum); |
685 | ncp_add_dword(server, dirent); |
686 | /* we must always operate on both nlinks and rdev, otherwise |
687 | rdev is not set */ |
688 | ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV); |
689 | ncp_add_dword_lh(server, mode); |
690 | ncp_add_dword_lh(server, 1); /* nlinks */ |
691 | ncp_add_dword_lh(server, rdev); |
692 | result = ncp_request(server, 87); |
693 | ncp_unlock_server(server); |
694 | } |
695 | return result; |
696 | } |
697 | #endif |
698 | |
699 | |
700 | static int |
701 | ncp_DeleteNSEntry(struct ncp_server *server, |
702 | __u8 have_dir_base, __u8 volnum, __le32 dirent, |
703 | char* name, __u8 ns, __le16 attr) |
704 | { |
705 | int result; |
706 | |
707 | ncp_init_request(server); |
708 | ncp_add_byte(server, 8); /* subfunction */ |
709 | ncp_add_byte(server, ns); |
710 | ncp_add_byte(server, 0); /* reserved */ |
711 | ncp_add_word(server, attr); /* search attribs: all */ |
712 | ncp_add_handle_path(server, volnum, dirent, have_dir_base, name); |
713 | |
714 | result = ncp_request(server, 87); |
715 | ncp_unlock_server(server); |
716 | return result; |
717 | } |
718 | |
719 | int |
720 | ncp_del_file_or_subdir2(struct ncp_server *server, |
721 | struct dentry *dentry) |
722 | { |
723 | struct inode *inode = dentry->d_inode; |
724 | __u8 volnum; |
725 | __le32 dirent; |
726 | |
727 | if (!inode) { |
728 | return 0xFF; /* Any error */ |
729 | } |
730 | volnum = NCP_FINFO(inode)->volNumber; |
731 | dirent = NCP_FINFO(inode)->DosDirNum; |
732 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006)); |
733 | } |
734 | |
735 | int |
736 | ncp_del_file_or_subdir(struct ncp_server *server, |
737 | struct inode *dir, char *name) |
738 | { |
739 | __u8 volnum = NCP_FINFO(dir)->volNumber; |
740 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; |
741 | |
742 | #ifdef CONFIG_NCPFS_NFS_NS |
743 | if (server->name_space[volnum]==NW_NS_NFS) |
744 | { |
745 | int result; |
746 | |
747 | result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent); |
748 | if (result) return result; |
749 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006)); |
750 | } |
751 | else |
752 | #endif /* CONFIG_NCPFS_NFS_NS */ |
753 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], cpu_to_le16(0x8006)); |
754 | } |
755 | |
756 | static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6]) |
757 | { |
758 | __le16 *dest = (__le16 *) ret; |
759 | dest[1] = cpu_to_le16(v0); |
760 | dest[2] = cpu_to_le16(v1); |
761 | dest[0] = cpu_to_le16(v0 + 1); |
762 | return; |
763 | } |
764 | |
765 | /* If both dir and name are NULL, then in target there's already a |
766 | looked-up entry that wants to be opened. */ |
767 | int ncp_open_create_file_or_subdir(struct ncp_server *server, |
768 | struct inode *dir, char *name, |
769 | int open_create_mode, |
770 | __le32 create_attributes, |
771 | __le16 desired_acc_rights, |
772 | struct ncp_entry_info *target) |
773 | { |
774 | __le16 search_attribs = cpu_to_le16(0x0006); |
775 | __u8 volnum; |
776 | __le32 dirent; |
777 | int result; |
778 | |
779 | volnum = NCP_FINFO(dir)->volNumber; |
780 | dirent = NCP_FINFO(dir)->dirEntNum; |
781 | |
782 | if ((create_attributes & aDIR) != 0) { |
783 | search_attribs |= cpu_to_le16(0x8000); |
784 | } |
785 | ncp_init_request(server); |
786 | ncp_add_byte(server, 1); /* subfunction */ |
787 | ncp_add_byte(server, server->name_space[volnum]); |
788 | ncp_add_byte(server, open_create_mode); |
789 | ncp_add_word(server, search_attribs); |
790 | ncp_add_dword(server, RIM_ALL); |
791 | ncp_add_dword(server, create_attributes); |
792 | /* The desired acc rights seem to be the inherited rights mask |
793 | for directories */ |
794 | ncp_add_word(server, desired_acc_rights); |
795 | ncp_add_handle_path(server, volnum, dirent, 1, name); |
796 | |
797 | if ((result = ncp_request(server, 87)) != 0) |
798 | goto out; |
799 | if (!(create_attributes & aDIR)) |
800 | target->opened = 1; |
801 | |
802 | /* in target there's a new finfo to fill */ |
803 | ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i)); |
804 | target->volume = target->i.volNumber; |
805 | ConvertToNWfromDWORD(ncp_reply_le16(server, 0), |
806 | ncp_reply_le16(server, 2), |
807 | target->file_handle); |
808 | |
809 | ncp_unlock_server(server); |
810 | |
811 | (void)ncp_obtain_nfs_info(server, &(target->i)); |
812 | return 0; |
813 | |
814 | out: |
815 | ncp_unlock_server(server); |
816 | return result; |
817 | } |
818 | |
819 | int |
820 | ncp_initialize_search(struct ncp_server *server, struct inode *dir, |
821 | struct nw_search_sequence *target) |
822 | { |
823 | __u8 volnum = NCP_FINFO(dir)->volNumber; |
824 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; |
825 | int result; |
826 | |
827 | ncp_init_request(server); |
828 | ncp_add_byte(server, 2); /* subfunction */ |
829 | ncp_add_byte(server, server->name_space[volnum]); |
830 | ncp_add_byte(server, 0); /* reserved */ |
831 | ncp_add_handle_path(server, volnum, dirent, 1, NULL); |
832 | |
833 | result = ncp_request(server, 87); |
834 | if (result) |
835 | goto out; |
836 | memcpy(target, ncp_reply_data(server, 0), sizeof(*target)); |
837 | |
838 | out: |
839 | ncp_unlock_server(server); |
840 | return result; |
841 | } |
842 | |
843 | int ncp_search_for_fileset(struct ncp_server *server, |
844 | struct nw_search_sequence *seq, |
845 | int* more, |
846 | int* cnt, |
847 | char* buffer, |
848 | size_t bufsize, |
849 | char** rbuf, |
850 | size_t* rsize) |
851 | { |
852 | int result; |
853 | |
854 | ncp_init_request(server); |
855 | ncp_add_byte(server, 20); |
856 | ncp_add_byte(server, server->name_space[seq->volNumber]); |
857 | ncp_add_byte(server, 0); /* datastream */ |
858 | ncp_add_word(server, cpu_to_le16(0x8006)); |
859 | ncp_add_dword(server, RIM_ALL); |
860 | ncp_add_word(server, cpu_to_le16(32767)); /* max returned items */ |
861 | ncp_add_mem(server, seq, 9); |
862 | #ifdef CONFIG_NCPFS_NFS_NS |
863 | if (server->name_space[seq->volNumber] == NW_NS_NFS) { |
864 | ncp_add_byte(server, 0); /* 0 byte pattern */ |
865 | } else |
866 | #endif |
867 | { |
868 | ncp_add_byte(server, 2); /* 2 byte pattern */ |
869 | ncp_add_byte(server, 0xff); /* following is a wildcard */ |
870 | ncp_add_byte(server, '*'); |
871 | } |
872 | result = ncp_request2(server, 87, buffer, bufsize); |
873 | if (result) { |
874 | ncp_unlock_server(server); |
875 | return result; |
876 | } |
877 | if (server->ncp_reply_size < 12) { |
878 | ncp_unlock_server(server); |
879 | return 0xFF; |
880 | } |
881 | *rsize = server->ncp_reply_size - 12; |
882 | ncp_unlock_server(server); |
883 | buffer = buffer + sizeof(struct ncp_reply_header); |
884 | *rbuf = buffer + 12; |
885 | *cnt = WVAL_LH(buffer + 10); |
886 | *more = BVAL(buffer + 9); |
887 | memcpy(seq, buffer, 9); |
888 | return 0; |
889 | } |
890 | |
891 | static int |
892 | ncp_RenameNSEntry(struct ncp_server *server, |
893 | struct inode *old_dir, char *old_name, __le16 old_type, |
894 | struct inode *new_dir, char *new_name) |
895 | { |
896 | int result = -EINVAL; |
897 | |
898 | if ((old_dir == NULL) || (old_name == NULL) || |
899 | (new_dir == NULL) || (new_name == NULL)) |
900 | goto out; |
901 | |
902 | ncp_init_request(server); |
903 | ncp_add_byte(server, 4); /* subfunction */ |
904 | ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]); |
905 | ncp_add_byte(server, 1); /* rename flag */ |
906 | ncp_add_word(server, old_type); /* search attributes */ |
907 | |
908 | /* source Handle Path */ |
909 | ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber); |
910 | ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum); |
911 | ncp_add_byte(server, 1); |
912 | ncp_add_byte(server, 1); /* 1 source component */ |
913 | |
914 | /* dest Handle Path */ |
915 | ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber); |
916 | ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum); |
917 | ncp_add_byte(server, 1); |
918 | ncp_add_byte(server, 1); /* 1 destination component */ |
919 | |
920 | /* source path string */ |
921 | ncp_add_pstring(server, old_name); |
922 | /* dest path string */ |
923 | ncp_add_pstring(server, new_name); |
924 | |
925 | result = ncp_request(server, 87); |
926 | ncp_unlock_server(server); |
927 | out: |
928 | return result; |
929 | } |
930 | |
931 | int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, |
932 | struct inode *old_dir, char *old_name, |
933 | struct inode *new_dir, char *new_name) |
934 | { |
935 | int result; |
936 | __le16 old_type = cpu_to_le16(0x06); |
937 | |
938 | /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */ |
939 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, |
940 | new_dir, new_name); |
941 | if (result == 0xFF) /* File Not Found, try directory */ |
942 | { |
943 | old_type = cpu_to_le16(0x16); |
944 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, |
945 | new_dir, new_name); |
946 | } |
947 | if (result != 0x92) return result; /* All except NO_FILES_RENAMED */ |
948 | result = ncp_del_file_or_subdir(server, new_dir, new_name); |
949 | if (result != 0) return -EACCES; |
950 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, |
951 | new_dir, new_name); |
952 | return result; |
953 | } |
954 | |
955 | |
956 | /* We have to transfer to/from user space */ |
957 | int |
958 | ncp_read_kernel(struct ncp_server *server, const char *file_id, |
959 | __u32 offset, __u16 to_read, char *target, int *bytes_read) |
960 | { |
961 | char *source; |
962 | int result; |
963 | |
964 | ncp_init_request(server); |
965 | ncp_add_byte(server, 0); |
966 | ncp_add_mem(server, file_id, 6); |
967 | ncp_add_be32(server, offset); |
968 | ncp_add_be16(server, to_read); |
969 | |
970 | if ((result = ncp_request(server, 72)) != 0) { |
971 | goto out; |
972 | } |
973 | *bytes_read = ncp_reply_be16(server, 0); |
974 | source = ncp_reply_data(server, 2 + (offset & 1)); |
975 | |
976 | memcpy(target, source, *bytes_read); |
977 | out: |
978 | ncp_unlock_server(server); |
979 | return result; |
980 | } |
981 | |
982 | /* There is a problem... egrep and some other silly tools do: |
983 | x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768); |
984 | read(<ncpfs fd>, x, 32768); |
985 | Now copying read result by copy_to_user causes pagefault. This pagefault |
986 | could not be handled because of server was locked due to read. So we have |
987 | to use temporary buffer. So ncp_unlock_server must be done before |
988 | copy_to_user (and for write, copy_from_user must be done before |
989 | ncp_init_request... same applies for send raw packet ioctl). Because of |
990 | file is normally read in bigger chunks, caller provides kmalloced |
991 | (vmalloced) chunk of memory with size >= to_read... |
992 | */ |
993 | int |
994 | ncp_read_bounce(struct ncp_server *server, const char *file_id, |
995 | __u32 offset, __u16 to_read, char __user *target, int *bytes_read, |
996 | void* bounce, __u32 bufsize) |
997 | { |
998 | int result; |
999 | |
1000 | ncp_init_request(server); |
1001 | ncp_add_byte(server, 0); |
1002 | ncp_add_mem(server, file_id, 6); |
1003 | ncp_add_be32(server, offset); |
1004 | ncp_add_be16(server, to_read); |
1005 | result = ncp_request2(server, 72, bounce, bufsize); |
1006 | ncp_unlock_server(server); |
1007 | if (!result) { |
1008 | int len = get_unaligned_be16((char *)bounce + |
1009 | sizeof(struct ncp_reply_header)); |
1010 | result = -EIO; |
1011 | if (len <= to_read) { |
1012 | char* source; |
1013 | |
1014 | source = (char*)bounce + |
1015 | sizeof(struct ncp_reply_header) + 2 + |
1016 | (offset & 1); |
1017 | *bytes_read = len; |
1018 | result = 0; |
1019 | if (copy_to_user(target, source, len)) |
1020 | result = -EFAULT; |
1021 | } |
1022 | } |
1023 | return result; |
1024 | } |
1025 | |
1026 | int |
1027 | ncp_write_kernel(struct ncp_server *server, const char *file_id, |
1028 | __u32 offset, __u16 to_write, |
1029 | const char *source, int *bytes_written) |
1030 | { |
1031 | int result; |
1032 | |
1033 | ncp_init_request(server); |
1034 | ncp_add_byte(server, 0); |
1035 | ncp_add_mem(server, file_id, 6); |
1036 | ncp_add_be32(server, offset); |
1037 | ncp_add_be16(server, to_write); |
1038 | ncp_add_mem(server, source, to_write); |
1039 | |
1040 | if ((result = ncp_request(server, 73)) == 0) |
1041 | *bytes_written = to_write; |
1042 | ncp_unlock_server(server); |
1043 | return result; |
1044 | } |
1045 | |
1046 | #ifdef CONFIG_NCPFS_IOCTL_LOCKING |
1047 | int |
1048 | ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id, |
1049 | __u8 locktype, __u32 offset, __u32 length, __u16 timeout) |
1050 | { |
1051 | int result; |
1052 | |
1053 | ncp_init_request(server); |
1054 | ncp_add_byte(server, locktype); |
1055 | ncp_add_mem(server, file_id, 6); |
1056 | ncp_add_be32(server, offset); |
1057 | ncp_add_be32(server, length); |
1058 | ncp_add_be16(server, timeout); |
1059 | |
1060 | if ((result = ncp_request(server, 0x1A)) != 0) |
1061 | { |
1062 | ncp_unlock_server(server); |
1063 | return result; |
1064 | } |
1065 | ncp_unlock_server(server); |
1066 | return 0; |
1067 | } |
1068 | |
1069 | int |
1070 | ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id, |
1071 | __u32 offset, __u32 length) |
1072 | { |
1073 | int result; |
1074 | |
1075 | ncp_init_request(server); |
1076 | ncp_add_byte(server, 0); /* who knows... lanalyzer says that */ |
1077 | ncp_add_mem(server, file_id, 6); |
1078 | ncp_add_be32(server, offset); |
1079 | ncp_add_be32(server, length); |
1080 | |
1081 | if ((result = ncp_request(server, 0x1E)) != 0) |
1082 | { |
1083 | ncp_unlock_server(server); |
1084 | return result; |
1085 | } |
1086 | ncp_unlock_server(server); |
1087 | return 0; |
1088 | } |
1089 | #endif /* CONFIG_NCPFS_IOCTL_LOCKING */ |
1090 | |
1091 | #ifdef CONFIG_NCPFS_NLS |
1092 | /* This are the NLS conversion routines with inspirations and code parts |
1093 | * from the vfat file system and hints from Petr Vandrovec. |
1094 | */ |
1095 | |
1096 | int |
1097 | ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen, |
1098 | const unsigned char *iname, unsigned int ilen, int cc) |
1099 | { |
1100 | struct nls_table *in = server->nls_io; |
1101 | struct nls_table *out = server->nls_vol; |
1102 | unsigned char *vname_start; |
1103 | unsigned char *vname_end; |
1104 | const unsigned char *iname_end; |
1105 | |
1106 | iname_end = iname + ilen; |
1107 | vname_start = vname; |
1108 | vname_end = vname + *vlen - 1; |
1109 | |
1110 | while (iname < iname_end) { |
1111 | int chl; |
1112 | wchar_t ec; |
1113 | |
1114 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { |
1115 | int k; |
1116 | unicode_t u; |
1117 | |
1118 | k = utf8_to_utf32(iname, iname_end - iname, &u); |
1119 | if (k < 0 || u > MAX_WCHAR_T) |
1120 | return -EINVAL; |
1121 | iname += k; |
1122 | ec = u; |
1123 | } else { |
1124 | if (*iname == NCP_ESC) { |
1125 | int k; |
1126 | |
1127 | if (iname_end - iname < 5) |
1128 | goto nospec; |
1129 | |
1130 | ec = 0; |
1131 | for (k = 1; k < 5; k++) { |
1132 | unsigned char nc; |
1133 | |
1134 | nc = iname[k] - '0'; |
1135 | if (nc >= 10) { |
1136 | nc -= 'A' - '0' - 10; |
1137 | if ((nc < 10) || (nc > 15)) { |
1138 | goto nospec; |
1139 | } |
1140 | } |
1141 | ec = (ec << 4) | nc; |
1142 | } |
1143 | iname += 5; |
1144 | } else { |
1145 | nospec:; |
1146 | if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0) |
1147 | return chl; |
1148 | iname += chl; |
1149 | } |
1150 | } |
1151 | |
1152 | /* unitoupper should be here! */ |
1153 | |
1154 | chl = out->uni2char(ec, vname, vname_end - vname); |
1155 | if (chl < 0) |
1156 | return chl; |
1157 | |
1158 | /* this is wrong... */ |
1159 | if (cc) { |
1160 | int chi; |
1161 | |
1162 | for (chi = 0; chi < chl; chi++){ |
1163 | vname[chi] = ncp_toupper(out, vname[chi]); |
1164 | } |
1165 | } |
1166 | vname += chl; |
1167 | } |
1168 | |
1169 | *vname = 0; |
1170 | *vlen = vname - vname_start; |
1171 | return 0; |
1172 | } |
1173 | |
1174 | int |
1175 | ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen, |
1176 | const unsigned char *vname, unsigned int vlen, int cc) |
1177 | { |
1178 | struct nls_table *in = server->nls_vol; |
1179 | struct nls_table *out = server->nls_io; |
1180 | const unsigned char *vname_end; |
1181 | unsigned char *iname_start; |
1182 | unsigned char *iname_end; |
1183 | unsigned char *vname_cc; |
1184 | int err; |
1185 | |
1186 | vname_cc = NULL; |
1187 | |
1188 | if (cc) { |
1189 | int i; |
1190 | |
1191 | /* this is wrong! */ |
1192 | vname_cc = kmalloc(vlen, GFP_KERNEL); |
1193 | if (!vname_cc) |
1194 | return -ENOMEM; |
1195 | for (i = 0; i < vlen; i++) |
1196 | vname_cc[i] = ncp_tolower(in, vname[i]); |
1197 | vname = vname_cc; |
1198 | } |
1199 | |
1200 | iname_start = iname; |
1201 | iname_end = iname + *ilen - 1; |
1202 | vname_end = vname + vlen; |
1203 | |
1204 | while (vname < vname_end) { |
1205 | wchar_t ec; |
1206 | int chl; |
1207 | |
1208 | if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) { |
1209 | err = chl; |
1210 | goto quit; |
1211 | } |
1212 | vname += chl; |
1213 | |
1214 | /* unitolower should be here! */ |
1215 | |
1216 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { |
1217 | int k; |
1218 | |
1219 | k = utf32_to_utf8(ec, iname, iname_end - iname); |
1220 | if (k < 0) { |
1221 | err = -ENAMETOOLONG; |
1222 | goto quit; |
1223 | } |
1224 | iname += k; |
1225 | } else { |
1226 | if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) { |
1227 | iname += chl; |
1228 | } else { |
1229 | int k; |
1230 | |
1231 | if (iname_end - iname < 5) { |
1232 | err = -ENAMETOOLONG; |
1233 | goto quit; |
1234 | } |
1235 | *iname = NCP_ESC; |
1236 | for (k = 4; k > 0; k--) { |
1237 | unsigned char v; |
1238 | |
1239 | v = (ec & 0xF) + '0'; |
1240 | if (v > '9') { |
1241 | v += 'A' - '9' - 1; |
1242 | } |
1243 | iname[k] = v; |
1244 | ec >>= 4; |
1245 | } |
1246 | iname += 5; |
1247 | } |
1248 | } |
1249 | } |
1250 | |
1251 | *iname = 0; |
1252 | *ilen = iname - iname_start; |
1253 | err = 0; |
1254 | quit:; |
1255 | if (cc) |
1256 | kfree(vname_cc); |
1257 | return err; |
1258 | } |
1259 | |
1260 | #else |
1261 | |
1262 | int |
1263 | ncp__io2vol(unsigned char *vname, unsigned int *vlen, |
1264 | const unsigned char *iname, unsigned int ilen, int cc) |
1265 | { |
1266 | int i; |
1267 | |
1268 | if (*vlen <= ilen) |
1269 | return -ENAMETOOLONG; |
1270 | |
1271 | if (cc) |
1272 | for (i = 0; i < ilen; i++) { |
1273 | *vname = toupper(*iname); |
1274 | vname++; |
1275 | iname++; |
1276 | } |
1277 | else { |
1278 | memmove(vname, iname, ilen); |
1279 | vname += ilen; |
1280 | } |
1281 | |
1282 | *vlen = ilen; |
1283 | *vname = 0; |
1284 | return 0; |
1285 | } |
1286 | |
1287 | int |
1288 | ncp__vol2io(unsigned char *iname, unsigned int *ilen, |
1289 | const unsigned char *vname, unsigned int vlen, int cc) |
1290 | { |
1291 | int i; |
1292 | |
1293 | if (*ilen <= vlen) |
1294 | return -ENAMETOOLONG; |
1295 | |
1296 | if (cc) |
1297 | for (i = 0; i < vlen; i++) { |
1298 | *iname = tolower(*vname); |
1299 | iname++; |
1300 | vname++; |
1301 | } |
1302 | else { |
1303 | memmove(iname, vname, vlen); |
1304 | iname += vlen; |
1305 | } |
1306 | |
1307 | *ilen = vlen; |
1308 | *iname = 0; |
1309 | return 0; |
1310 | } |
1311 | |
1312 | #endif |
1313 |
Branches:
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javiroman/ks7010
jz-2.6.34
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9