Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * ncplib_kernel.c | |
4 | * | |
5 | * Copyright (C) 1995, 1996 by Volker Lendecke | |
6 | * Modified for big endian by J.F. Chadima and David S. Miller | |
7 | * Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache | |
8 | * Modified 1999 Wolfram Pienkoss for NLS | |
9 | * Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info | |
10 | * | |
11 | */ | |
12 | ||
b41f8b84 | 13 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
1da177e4 | 14 | |
32c419d9 | 15 | #include "ncp_fs.h" |
1da177e4 LT |
16 | |
17 | static inline void assert_server_locked(struct ncp_server *server) | |
18 | { | |
19 | if (server->lock == 0) { | |
d3b73ca1 | 20 | ncp_dbg(1, "server not locked!\n"); |
1da177e4 LT |
21 | } |
22 | } | |
23 | ||
24 | static void ncp_add_byte(struct ncp_server *server, __u8 x) | |
25 | { | |
26 | assert_server_locked(server); | |
27 | *(__u8 *) (&(server->packet[server->current_size])) = x; | |
28 | server->current_size += 1; | |
29 | return; | |
30 | } | |
31 | ||
32 | static void ncp_add_word(struct ncp_server *server, __le16 x) | |
33 | { | |
34 | assert_server_locked(server); | |
35 | put_unaligned(x, (__le16 *) (&(server->packet[server->current_size]))); | |
36 | server->current_size += 2; | |
37 | return; | |
38 | } | |
39 | ||
40 | static void ncp_add_be16(struct ncp_server *server, __u16 x) | |
41 | { | |
42 | assert_server_locked(server); | |
43 | put_unaligned(cpu_to_be16(x), (__be16 *) (&(server->packet[server->current_size]))); | |
44 | server->current_size += 2; | |
45 | } | |
46 | ||
47 | static void ncp_add_dword(struct ncp_server *server, __le32 x) | |
48 | { | |
49 | assert_server_locked(server); | |
50 | put_unaligned(x, (__le32 *) (&(server->packet[server->current_size]))); | |
51 | server->current_size += 4; | |
52 | return; | |
53 | } | |
54 | ||
55 | static void ncp_add_be32(struct ncp_server *server, __u32 x) | |
56 | { | |
57 | assert_server_locked(server); | |
58 | put_unaligned(cpu_to_be32(x), (__be32 *)(&(server->packet[server->current_size]))); | |
59 | server->current_size += 4; | |
60 | } | |
61 | ||
62 | static inline void ncp_add_dword_lh(struct ncp_server *server, __u32 x) { | |
63 | ncp_add_dword(server, cpu_to_le32(x)); | |
64 | } | |
65 | ||
66 | static void ncp_add_mem(struct ncp_server *server, const void *source, int size) | |
67 | { | |
68 | assert_server_locked(server); | |
69 | memcpy(&(server->packet[server->current_size]), source, size); | |
70 | server->current_size += size; | |
71 | return; | |
72 | } | |
73 | ||
74 | static void ncp_add_pstring(struct ncp_server *server, const char *s) | |
75 | { | |
76 | int len = strlen(s); | |
77 | assert_server_locked(server); | |
78 | if (len > 255) { | |
d3b73ca1 | 79 | ncp_dbg(1, "string too long: %s\n", s); |
1da177e4 LT |
80 | len = 255; |
81 | } | |
82 | ncp_add_byte(server, len); | |
83 | ncp_add_mem(server, s, len); | |
84 | return; | |
85 | } | |
86 | ||
87 | static inline void ncp_init_request(struct ncp_server *server) | |
88 | { | |
89 | ncp_lock_server(server); | |
90 | ||
91 | server->current_size = sizeof(struct ncp_request_header); | |
92 | server->has_subfunction = 0; | |
93 | } | |
94 | ||
95 | static inline void ncp_init_request_s(struct ncp_server *server, int subfunction) | |
96 | { | |
97 | ncp_lock_server(server); | |
98 | ||
99 | server->current_size = sizeof(struct ncp_request_header) + 2; | |
100 | ncp_add_byte(server, subfunction); | |
101 | ||
102 | server->has_subfunction = 1; | |
103 | } | |
104 | ||
105 | static inline char * | |
97a4feb4 | 106 | ncp_reply_data(struct ncp_server *server, int offset) |
1da177e4 LT |
107 | { |
108 | return &(server->packet[sizeof(struct ncp_reply_header) + offset]); | |
109 | } | |
110 | ||
2e54eb96 | 111 | static inline u8 BVAL(const void *data) |
1da177e4 | 112 | { |
2e54eb96 | 113 | return *(const u8 *)data; |
1da177e4 LT |
114 | } |
115 | ||
97a4feb4 | 116 | static u8 ncp_reply_byte(struct ncp_server *server, int offset) |
1da177e4 | 117 | { |
2e54eb96 | 118 | return *(const u8 *)ncp_reply_data(server, offset); |
1da177e4 LT |
119 | } |
120 | ||
2e54eb96 | 121 | static inline u16 WVAL_LH(const void *data) |
1da177e4 | 122 | { |
97a4feb4 | 123 | return get_unaligned_le16(data); |
1da177e4 LT |
124 | } |
125 | ||
97a4feb4 HH |
126 | static u16 |
127 | ncp_reply_le16(struct ncp_server *server, int offset) | |
1da177e4 | 128 | { |
97a4feb4 | 129 | return get_unaligned_le16(ncp_reply_data(server, offset)); |
1da177e4 LT |
130 | } |
131 | ||
97a4feb4 HH |
132 | static u16 |
133 | ncp_reply_be16(struct ncp_server *server, int offset) | |
1da177e4 | 134 | { |
97a4feb4 | 135 | return get_unaligned_be16(ncp_reply_data(server, offset)); |
1da177e4 LT |
136 | } |
137 | ||
2e54eb96 | 138 | static inline u32 DVAL_LH(const void *data) |
1da177e4 | 139 | { |
97a4feb4 | 140 | return get_unaligned_le32(data); |
1da177e4 LT |
141 | } |
142 | ||
143 | static __le32 | |
97a4feb4 | 144 | ncp_reply_dword(struct ncp_server *server, int offset) |
1da177e4 | 145 | { |
97a4feb4 | 146 | return get_unaligned((__le32 *)ncp_reply_data(server, offset)); |
1da177e4 LT |
147 | } |
148 | ||
149 | static inline __u32 ncp_reply_dword_lh(struct ncp_server* server, int offset) { | |
150 | return le32_to_cpu(ncp_reply_dword(server, offset)); | |
151 | } | |
152 | ||
153 | int | |
154 | ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target) | |
155 | { | |
156 | int result; | |
157 | ||
158 | ncp_init_request(server); | |
159 | ncp_add_be16(server, size); | |
160 | ||
161 | if ((result = ncp_request(server, 33)) != 0) { | |
162 | ncp_unlock_server(server); | |
163 | return result; | |
164 | } | |
165 | *target = min_t(unsigned int, ncp_reply_be16(server, 0), size); | |
166 | ||
167 | ncp_unlock_server(server); | |
168 | return 0; | |
169 | } | |
170 | ||
171 | ||
172 | /* options: | |
173 | * bit 0 ipx checksum | |
174 | * bit 1 packet signing | |
175 | */ | |
176 | int | |
177 | ncp_negotiate_size_and_options(struct ncp_server *server, | |
178 | int size, int options, int *ret_size, int *ret_options) { | |
179 | int result; | |
180 | ||
181 | /* there is minimum */ | |
182 | if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE; | |
183 | ||
184 | ncp_init_request(server); | |
185 | ncp_add_be16(server, size); | |
186 | ncp_add_byte(server, options); | |
187 | ||
188 | if ((result = ncp_request(server, 0x61)) != 0) | |
189 | { | |
190 | ncp_unlock_server(server); | |
191 | return result; | |
192 | } | |
193 | ||
194 | /* NCP over UDP returns 0 (!!!) */ | |
195 | result = ncp_reply_be16(server, 0); | |
196 | if (result >= NCP_BLOCK_SIZE) | |
197 | size = min(result, size); | |
198 | *ret_size = size; | |
199 | *ret_options = ncp_reply_byte(server, 4); | |
200 | ||
201 | ncp_unlock_server(server); | |
202 | return 0; | |
203 | } | |
204 | ||
205 | int ncp_get_volume_info_with_number(struct ncp_server* server, | |
206 | int n, struct ncp_volume_info* target) { | |
207 | int result; | |
208 | int len; | |
209 | ||
210 | ncp_init_request_s(server, 44); | |
211 | ncp_add_byte(server, n); | |
212 | ||
213 | if ((result = ncp_request(server, 22)) != 0) { | |
214 | goto out; | |
215 | } | |
216 | target->total_blocks = ncp_reply_dword_lh(server, 0); | |
217 | target->free_blocks = ncp_reply_dword_lh(server, 4); | |
218 | target->purgeable_blocks = ncp_reply_dword_lh(server, 8); | |
219 | target->not_yet_purgeable_blocks = ncp_reply_dword_lh(server, 12); | |
220 | target->total_dir_entries = ncp_reply_dword_lh(server, 16); | |
221 | target->available_dir_entries = ncp_reply_dword_lh(server, 20); | |
222 | target->sectors_per_block = ncp_reply_byte(server, 28); | |
223 | ||
224 | memset(&(target->volume_name), 0, sizeof(target->volume_name)); | |
225 | ||
226 | result = -EIO; | |
227 | len = ncp_reply_byte(server, 29); | |
228 | if (len > NCP_VOLNAME_LEN) { | |
d3b73ca1 | 229 | ncp_dbg(1, "volume name too long: %d\n", len); |
1da177e4 LT |
230 | goto out; |
231 | } | |
232 | memcpy(&(target->volume_name), ncp_reply_data(server, 30), len); | |
233 | result = 0; | |
234 | out: | |
235 | ncp_unlock_server(server); | |
236 | return result; | |
237 | } | |
238 | ||
239 | int ncp_get_directory_info(struct ncp_server* server, __u8 n, | |
240 | struct ncp_volume_info* target) { | |
241 | int result; | |
242 | int len; | |
243 | ||
244 | ncp_init_request_s(server, 45); | |
245 | ncp_add_byte(server, n); | |
246 | ||
247 | if ((result = ncp_request(server, 22)) != 0) { | |
248 | goto out; | |
249 | } | |
250 | target->total_blocks = ncp_reply_dword_lh(server, 0); | |
251 | target->free_blocks = ncp_reply_dword_lh(server, 4); | |
252 | target->purgeable_blocks = 0; | |
253 | target->not_yet_purgeable_blocks = 0; | |
254 | target->total_dir_entries = ncp_reply_dword_lh(server, 8); | |
255 | target->available_dir_entries = ncp_reply_dword_lh(server, 12); | |
256 | target->sectors_per_block = ncp_reply_byte(server, 20); | |
257 | ||
258 | memset(&(target->volume_name), 0, sizeof(target->volume_name)); | |
259 | ||
260 | result = -EIO; | |
261 | len = ncp_reply_byte(server, 21); | |
262 | if (len > NCP_VOLNAME_LEN) { | |
d3b73ca1 | 263 | ncp_dbg(1, "volume name too long: %d\n", len); |
1da177e4 LT |
264 | goto out; |
265 | } | |
266 | memcpy(&(target->volume_name), ncp_reply_data(server, 22), len); | |
267 | result = 0; | |
268 | out: | |
269 | ncp_unlock_server(server); | |
270 | return result; | |
271 | } | |
272 | ||
273 | int | |
274 | ncp_close_file(struct ncp_server *server, const char *file_id) | |
275 | { | |
276 | int result; | |
277 | ||
278 | ncp_init_request(server); | |
279 | ncp_add_byte(server, 0); | |
280 | ncp_add_mem(server, file_id, 6); | |
281 | ||
282 | result = ncp_request(server, 66); | |
283 | ncp_unlock_server(server); | |
284 | return result; | |
285 | } | |
286 | ||
287 | int | |
288 | ncp_make_closed(struct inode *inode) | |
289 | { | |
290 | int err; | |
291 | ||
292 | err = 0; | |
8e3f9045 | 293 | mutex_lock(&NCP_FINFO(inode)->open_mutex); |
1da177e4 LT |
294 | if (atomic_read(&NCP_FINFO(inode)->opened) == 1) { |
295 | atomic_set(&NCP_FINFO(inode)->opened, 0); | |
296 | err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle); | |
297 | ||
298 | if (!err) | |
e45ca8ba JP |
299 | ncp_vdbg("volnum=%d, dirent=%u, error=%d\n", |
300 | NCP_FINFO(inode)->volNumber, | |
301 | NCP_FINFO(inode)->dirEntNum, err); | |
1da177e4 | 302 | } |
8e3f9045 | 303 | mutex_unlock(&NCP_FINFO(inode)->open_mutex); |
1da177e4 LT |
304 | return err; |
305 | } | |
306 | ||
307 | static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num, | |
308 | __le32 dir_base, int have_dir_base, | |
309 | const char *path) | |
310 | { | |
311 | ncp_add_byte(server, vol_num); | |
312 | ncp_add_dword(server, dir_base); | |
313 | if (have_dir_base != 0) { | |
314 | ncp_add_byte(server, 1); /* dir_base */ | |
315 | } else { | |
316 | ncp_add_byte(server, 0xff); /* no handle */ | |
317 | } | |
318 | if (path != NULL) { | |
319 | ncp_add_byte(server, 1); /* 1 component */ | |
320 | ncp_add_pstring(server, path); | |
321 | } else { | |
322 | ncp_add_byte(server, 0); | |
323 | } | |
324 | } | |
325 | ||
326 | int ncp_dirhandle_alloc(struct ncp_server* server, __u8 volnum, __le32 dirent, | |
327 | __u8* dirhandle) { | |
328 | int result; | |
329 | ||
330 | ncp_init_request(server); | |
331 | ncp_add_byte(server, 12); /* subfunction */ | |
332 | ncp_add_byte(server, NW_NS_DOS); | |
333 | ncp_add_byte(server, 0); | |
334 | ncp_add_word(server, 0); | |
335 | ncp_add_handle_path(server, volnum, dirent, 1, NULL); | |
336 | if ((result = ncp_request(server, 87)) == 0) { | |
337 | *dirhandle = ncp_reply_byte(server, 0); | |
338 | } | |
339 | ncp_unlock_server(server); | |
340 | return result; | |
341 | } | |
342 | ||
343 | int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) { | |
344 | int result; | |
345 | ||
346 | ncp_init_request_s(server, 20); | |
347 | ncp_add_byte(server, dirhandle); | |
348 | result = ncp_request(server, 22); | |
349 | ncp_unlock_server(server); | |
350 | return result; | |
351 | } | |
352 | ||
2e54eb96 | 353 | void ncp_extract_file_info(const void *structure, struct nw_info_struct *target) |
1da177e4 | 354 | { |
2e54eb96 | 355 | const __u8 *name_len; |
1da177e4 LT |
356 | const int info_struct_size = offsetof(struct nw_info_struct, nameLen); |
357 | ||
358 | memcpy(target, structure, info_struct_size); | |
359 | name_len = structure + info_struct_size; | |
360 | target->nameLen = *name_len; | |
361 | memcpy(target->entryName, name_len + 1, *name_len); | |
362 | target->entryName[*name_len] = '\0'; | |
363 | target->volNumber = le32_to_cpu(target->volNumber); | |
364 | return; | |
365 | } | |
366 | ||
367 | #ifdef CONFIG_NCPFS_NFS_NS | |
2e54eb96 | 368 | static inline void ncp_extract_nfs_info(const unsigned char *structure, |
1da177e4 LT |
369 | struct nw_nfs_info *target) |
370 | { | |
371 | target->mode = DVAL_LH(structure); | |
372 | target->rdev = DVAL_LH(structure + 8); | |
373 | } | |
374 | #endif | |
375 | ||
376 | int ncp_obtain_nfs_info(struct ncp_server *server, | |
377 | struct nw_info_struct *target) | |
378 | ||
379 | { | |
380 | int result = 0; | |
381 | #ifdef CONFIG_NCPFS_NFS_NS | |
382 | __u32 volnum = target->volNumber; | |
383 | ||
384 | if (ncp_is_nfs_extras(server, volnum)) { | |
385 | ncp_init_request(server); | |
386 | ncp_add_byte(server, 19); /* subfunction */ | |
387 | ncp_add_byte(server, server->name_space[volnum]); | |
388 | ncp_add_byte(server, NW_NS_NFS); | |
389 | ncp_add_byte(server, 0); | |
390 | ncp_add_byte(server, volnum); | |
391 | ncp_add_dword(server, target->dirEntNum); | |
392 | /* We must retrieve both nlinks and rdev, otherwise some server versions | |
393 | report zeroes instead of valid data */ | |
394 | ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV); | |
395 | ||
396 | if ((result = ncp_request(server, 87)) == 0) { | |
397 | ncp_extract_nfs_info(ncp_reply_data(server, 0), &target->nfs); | |
d3b73ca1 | 398 | ncp_dbg(1, "(%s) mode=0%o, rdev=0x%x\n", |
1da177e4 LT |
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 | */ | |
2e54eb96 | 420 | int ncp_obtain_info(struct ncp_server *server, struct inode *dir, const char *path, |
1da177e4 LT |
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) { | |
b41f8b84 | 428 | pr_err("%s: invalid call\n", __func__); |
1da177e4 LT |
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, | |
2e54eb96 PV |
455 | __u8 ns, __u8 volnum, __le32 dirent, |
456 | const char *path, /* At most 1 component */ | |
1da177e4 LT |
457 | __le32 *DOS_dir_base) |
458 | { | |
459 | int result; | |
460 | ||
461 | ncp_init_request(server); | |
462 | ncp_add_byte(server, 6); /* subfunction */ | |
2e54eb96 PV |
463 | ncp_add_byte(server, ns); |
464 | ncp_add_byte(server, ns); | |
1da177e4 LT |
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) { | |
d3b73ca1 | 501 | ncp_dbg(1, "found %d on %d\n", *namespace, volume); |
1da177e4 LT |
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 | ||
2e54eb96 PV |
526 | int |
527 | ncp_update_known_namespace(struct ncp_server *server, __u8 volume, int *ret_ns) | |
528 | { | |
529 | int ns = ncp_get_known_namespace(server, volume); | |
530 | ||
531 | if (ret_ns) | |
532 | *ret_ns = ns; | |
533 | ||
d3b73ca1 | 534 | ncp_dbg(1, "namespace[%d] = %d\n", volume, server->name_space[volume]); |
2e54eb96 PV |
535 | |
536 | if (server->name_space[volume] == ns) | |
537 | return 0; | |
538 | server->name_space[volume] = ns; | |
539 | return 1; | |
540 | } | |
541 | ||
1da177e4 LT |
542 | static int |
543 | ncp_ObtainSpecificDirBase(struct ncp_server *server, | |
544 | __u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base, | |
2e54eb96 | 545 | const char *path, /* At most 1 component */ |
1da177e4 LT |
546 | __le32 *dirEntNum, __le32 *DosDirNum) |
547 | { | |
548 | int result; | |
549 | ||
550 | ncp_init_request(server); | |
551 | ncp_add_byte(server, 6); /* subfunction */ | |
552 | ncp_add_byte(server, nsSrc); | |
553 | ncp_add_byte(server, nsDst); | |
554 | ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */ | |
555 | ncp_add_dword(server, RIM_ALL); | |
556 | ncp_add_handle_path(server, vol_num, dir_base, 1, path); | |
557 | ||
558 | if ((result = ncp_request(server, 87)) != 0) | |
559 | { | |
560 | ncp_unlock_server(server); | |
561 | return result; | |
562 | } | |
563 | ||
564 | if (dirEntNum) | |
565 | *dirEntNum = ncp_reply_dword(server, 0x30); | |
566 | if (DosDirNum) | |
567 | *DosDirNum = ncp_reply_dword(server, 0x34); | |
568 | ncp_unlock_server(server); | |
569 | return 0; | |
570 | } | |
571 | ||
572 | int | |
573 | ncp_mount_subdir(struct ncp_server *server, | |
574 | __u8 volNumber, __u8 srcNS, __le32 dirEntNum, | |
575 | __u32* volume, __le32* newDirEnt, __le32* newDosEnt) | |
576 | { | |
577 | int dstNS; | |
578 | int result; | |
2e54eb96 PV |
579 | |
580 | ncp_update_known_namespace(server, volNumber, &dstNS); | |
1da177e4 LT |
581 | if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber, |
582 | dirEntNum, NULL, newDirEnt, newDosEnt)) != 0) | |
583 | { | |
584 | return result; | |
585 | } | |
1da177e4 LT |
586 | *volume = volNumber; |
587 | server->m.mounted_vol[1] = 0; | |
588 | server->m.mounted_vol[0] = 'X'; | |
589 | return 0; | |
590 | } | |
591 | ||
592 | int | |
2e54eb96 PV |
593 | ncp_get_volume_root(struct ncp_server *server, |
594 | const char *volname, __u32* volume, __le32* dirent, __le32* dosdirent) | |
1da177e4 LT |
595 | { |
596 | int result; | |
1da177e4 | 597 | |
d3b73ca1 | 598 | ncp_dbg(1, "looking up vol %s\n", volname); |
1da177e4 LT |
599 | |
600 | ncp_init_request(server); | |
601 | ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */ | |
602 | ncp_add_byte(server, 0); /* DOS namespace */ | |
603 | ncp_add_byte(server, 0); /* reserved */ | |
604 | ncp_add_byte(server, 0); /* reserved */ | |
605 | ncp_add_byte(server, 0); /* reserved */ | |
606 | ||
607 | ncp_add_byte(server, 0); /* faked volume number */ | |
608 | ncp_add_dword(server, 0); /* faked dir_base */ | |
609 | ncp_add_byte(server, 0xff); /* Don't have a dir_base */ | |
610 | ncp_add_byte(server, 1); /* 1 path component */ | |
611 | ncp_add_pstring(server, volname); | |
612 | ||
613 | if ((result = ncp_request(server, 87)) != 0) { | |
614 | ncp_unlock_server(server); | |
615 | return result; | |
616 | } | |
617 | *dirent = *dosdirent = ncp_reply_dword(server, 4); | |
2e54eb96 | 618 | *volume = ncp_reply_byte(server, 8); |
1da177e4 | 619 | ncp_unlock_server(server); |
1da177e4 LT |
620 | return 0; |
621 | } | |
622 | ||
623 | int | |
2e54eb96 PV |
624 | ncp_lookup_volume(struct ncp_server *server, |
625 | const char *volname, struct nw_info_struct *target) | |
1da177e4 LT |
626 | { |
627 | int result; | |
628 | ||
629 | memset(target, 0, sizeof(*target)); | |
630 | result = ncp_get_volume_root(server, volname, | |
631 | &target->volNumber, &target->dirEntNum, &target->DosDirNum); | |
632 | if (result) { | |
633 | return result; | |
634 | } | |
2e54eb96 | 635 | ncp_update_known_namespace(server, target->volNumber, NULL); |
1da177e4 LT |
636 | target->nameLen = strlen(volname); |
637 | memcpy(target->entryName, volname, target->nameLen+1); | |
638 | target->attributes = aDIR; | |
639 | /* set dates to Jan 1, 1986 00:00 */ | |
640 | target->creationTime = target->modifyTime = cpu_to_le16(0x0000); | |
641 | target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21); | |
642 | target->nfs.mode = 0; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server, | |
647 | struct inode *dir, | |
648 | const char *path, | |
649 | __le32 info_mask, | |
650 | const struct nw_modify_dos_info *info) | |
651 | { | |
652 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
653 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
654 | int result; | |
655 | ||
656 | ncp_init_request(server); | |
657 | ncp_add_byte(server, 7); /* subfunction */ | |
658 | ncp_add_byte(server, server->name_space[volnum]); | |
659 | ncp_add_byte(server, 0); /* reserved */ | |
660 | ncp_add_word(server, cpu_to_le16(0x8006)); /* search attribs: all */ | |
661 | ||
662 | ncp_add_dword(server, info_mask); | |
663 | ncp_add_mem(server, info, sizeof(*info)); | |
664 | ncp_add_handle_path(server, volnum, dirent, 1, path); | |
665 | ||
666 | result = ncp_request(server, 87); | |
667 | ncp_unlock_server(server); | |
668 | return result; | |
669 | } | |
670 | ||
671 | int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server, | |
672 | struct inode *dir, | |
673 | __le32 info_mask, | |
674 | const struct nw_modify_dos_info *info) | |
675 | { | |
676 | return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL, | |
677 | info_mask, info); | |
678 | } | |
679 | ||
680 | #ifdef CONFIG_NCPFS_NFS_NS | |
681 | int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent, | |
682 | __u32 mode, __u32 rdev) | |
683 | ||
684 | { | |
685 | int result = 0; | |
686 | ||
2e54eb96 | 687 | ncp_init_request(server); |
1da177e4 | 688 | if (server->name_space[volnum] == NW_NS_NFS) { |
1da177e4 LT |
689 | ncp_add_byte(server, 25); /* subfunction */ |
690 | ncp_add_byte(server, server->name_space[volnum]); | |
691 | ncp_add_byte(server, NW_NS_NFS); | |
692 | ncp_add_byte(server, volnum); | |
693 | ncp_add_dword(server, dirent); | |
694 | /* we must always operate on both nlinks and rdev, otherwise | |
695 | rdev is not set */ | |
696 | ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV); | |
697 | ncp_add_dword_lh(server, mode); | |
698 | ncp_add_dword_lh(server, 1); /* nlinks */ | |
699 | ncp_add_dword_lh(server, rdev); | |
700 | result = ncp_request(server, 87); | |
1da177e4 | 701 | } |
2e54eb96 | 702 | ncp_unlock_server(server); |
1da177e4 LT |
703 | return result; |
704 | } | |
705 | #endif | |
706 | ||
707 | ||
708 | static int | |
709 | ncp_DeleteNSEntry(struct ncp_server *server, | |
710 | __u8 have_dir_base, __u8 volnum, __le32 dirent, | |
2e54eb96 | 711 | const char* name, __u8 ns, __le16 attr) |
1da177e4 LT |
712 | { |
713 | int result; | |
714 | ||
715 | ncp_init_request(server); | |
716 | ncp_add_byte(server, 8); /* subfunction */ | |
717 | ncp_add_byte(server, ns); | |
718 | ncp_add_byte(server, 0); /* reserved */ | |
719 | ncp_add_word(server, attr); /* search attribs: all */ | |
720 | ncp_add_handle_path(server, volnum, dirent, have_dir_base, name); | |
721 | ||
722 | result = ncp_request(server, 87); | |
723 | ncp_unlock_server(server); | |
724 | return result; | |
725 | } | |
726 | ||
727 | int | |
728 | ncp_del_file_or_subdir2(struct ncp_server *server, | |
729 | struct dentry *dentry) | |
730 | { | |
2b0143b5 | 731 | struct inode *inode = d_inode(dentry); |
1da177e4 LT |
732 | __u8 volnum; |
733 | __le32 dirent; | |
734 | ||
735 | if (!inode) { | |
1da177e4 LT |
736 | return 0xFF; /* Any error */ |
737 | } | |
738 | volnum = NCP_FINFO(inode)->volNumber; | |
739 | dirent = NCP_FINFO(inode)->DosDirNum; | |
740 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006)); | |
741 | } | |
742 | ||
743 | int | |
744 | ncp_del_file_or_subdir(struct ncp_server *server, | |
2e54eb96 | 745 | struct inode *dir, const char *name) |
1da177e4 LT |
746 | { |
747 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
748 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
2e54eb96 | 749 | int name_space; |
1da177e4 | 750 | |
2e54eb96 | 751 | name_space = server->name_space[volnum]; |
1da177e4 | 752 | #ifdef CONFIG_NCPFS_NFS_NS |
2e54eb96 | 753 | if (name_space == NW_NS_NFS) |
1da177e4 LT |
754 | { |
755 | int result; | |
756 | ||
2e54eb96 | 757 | result=ncp_obtain_DOS_dir_base(server, name_space, volnum, dirent, name, &dirent); |
1da177e4 | 758 | if (result) return result; |
2e54eb96 PV |
759 | name = NULL; |
760 | name_space = NW_NS_DOS; | |
1da177e4 | 761 | } |
1da177e4 | 762 | #endif /* CONFIG_NCPFS_NFS_NS */ |
2e54eb96 | 763 | return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, name_space, cpu_to_le16(0x8006)); |
1da177e4 LT |
764 | } |
765 | ||
766 | static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6]) | |
767 | { | |
768 | __le16 *dest = (__le16 *) ret; | |
769 | dest[1] = cpu_to_le16(v0); | |
770 | dest[2] = cpu_to_le16(v1); | |
771 | dest[0] = cpu_to_le16(v0 + 1); | |
772 | return; | |
773 | } | |
774 | ||
775 | /* If both dir and name are NULL, then in target there's already a | |
776 | looked-up entry that wants to be opened. */ | |
777 | int ncp_open_create_file_or_subdir(struct ncp_server *server, | |
2e54eb96 | 778 | struct inode *dir, const char *name, |
1da177e4 LT |
779 | int open_create_mode, |
780 | __le32 create_attributes, | |
781 | __le16 desired_acc_rights, | |
782 | struct ncp_entry_info *target) | |
783 | { | |
784 | __le16 search_attribs = cpu_to_le16(0x0006); | |
785 | __u8 volnum; | |
786 | __le32 dirent; | |
787 | int result; | |
788 | ||
789 | volnum = NCP_FINFO(dir)->volNumber; | |
790 | dirent = NCP_FINFO(dir)->dirEntNum; | |
791 | ||
792 | if ((create_attributes & aDIR) != 0) { | |
793 | search_attribs |= cpu_to_le16(0x8000); | |
794 | } | |
795 | ncp_init_request(server); | |
796 | ncp_add_byte(server, 1); /* subfunction */ | |
797 | ncp_add_byte(server, server->name_space[volnum]); | |
798 | ncp_add_byte(server, open_create_mode); | |
799 | ncp_add_word(server, search_attribs); | |
800 | ncp_add_dword(server, RIM_ALL); | |
801 | ncp_add_dword(server, create_attributes); | |
802 | /* The desired acc rights seem to be the inherited rights mask | |
803 | for directories */ | |
804 | ncp_add_word(server, desired_acc_rights); | |
805 | ncp_add_handle_path(server, volnum, dirent, 1, name); | |
806 | ||
807 | if ((result = ncp_request(server, 87)) != 0) | |
808 | goto out; | |
809 | if (!(create_attributes & aDIR)) | |
810 | target->opened = 1; | |
811 | ||
812 | /* in target there's a new finfo to fill */ | |
813 | ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i)); | |
814 | target->volume = target->i.volNumber; | |
815 | ConvertToNWfromDWORD(ncp_reply_le16(server, 0), | |
816 | ncp_reply_le16(server, 2), | |
817 | target->file_handle); | |
818 | ||
819 | ncp_unlock_server(server); | |
820 | ||
821 | (void)ncp_obtain_nfs_info(server, &(target->i)); | |
822 | return 0; | |
823 | ||
824 | out: | |
825 | ncp_unlock_server(server); | |
826 | return result; | |
827 | } | |
828 | ||
829 | int | |
830 | ncp_initialize_search(struct ncp_server *server, struct inode *dir, | |
831 | struct nw_search_sequence *target) | |
832 | { | |
833 | __u8 volnum = NCP_FINFO(dir)->volNumber; | |
834 | __le32 dirent = NCP_FINFO(dir)->dirEntNum; | |
835 | int result; | |
836 | ||
837 | ncp_init_request(server); | |
838 | ncp_add_byte(server, 2); /* subfunction */ | |
839 | ncp_add_byte(server, server->name_space[volnum]); | |
840 | ncp_add_byte(server, 0); /* reserved */ | |
841 | ncp_add_handle_path(server, volnum, dirent, 1, NULL); | |
842 | ||
843 | result = ncp_request(server, 87); | |
844 | if (result) | |
845 | goto out; | |
846 | memcpy(target, ncp_reply_data(server, 0), sizeof(*target)); | |
847 | ||
848 | out: | |
849 | ncp_unlock_server(server); | |
850 | return result; | |
851 | } | |
852 | ||
1da177e4 LT |
853 | int ncp_search_for_fileset(struct ncp_server *server, |
854 | struct nw_search_sequence *seq, | |
855 | int* more, | |
856 | int* cnt, | |
857 | char* buffer, | |
858 | size_t bufsize, | |
859 | char** rbuf, | |
860 | size_t* rsize) | |
861 | { | |
862 | int result; | |
863 | ||
864 | ncp_init_request(server); | |
865 | ncp_add_byte(server, 20); | |
866 | ncp_add_byte(server, server->name_space[seq->volNumber]); | |
867 | ncp_add_byte(server, 0); /* datastream */ | |
868 | ncp_add_word(server, cpu_to_le16(0x8006)); | |
869 | ncp_add_dword(server, RIM_ALL); | |
870 | ncp_add_word(server, cpu_to_le16(32767)); /* max returned items */ | |
871 | ncp_add_mem(server, seq, 9); | |
872 | #ifdef CONFIG_NCPFS_NFS_NS | |
873 | if (server->name_space[seq->volNumber] == NW_NS_NFS) { | |
874 | ncp_add_byte(server, 0); /* 0 byte pattern */ | |
875 | } else | |
876 | #endif | |
877 | { | |
878 | ncp_add_byte(server, 2); /* 2 byte pattern */ | |
879 | ncp_add_byte(server, 0xff); /* following is a wildcard */ | |
880 | ncp_add_byte(server, '*'); | |
881 | } | |
882 | result = ncp_request2(server, 87, buffer, bufsize); | |
883 | if (result) { | |
884 | ncp_unlock_server(server); | |
885 | return result; | |
886 | } | |
887 | if (server->ncp_reply_size < 12) { | |
888 | ncp_unlock_server(server); | |
889 | return 0xFF; | |
890 | } | |
891 | *rsize = server->ncp_reply_size - 12; | |
892 | ncp_unlock_server(server); | |
893 | buffer = buffer + sizeof(struct ncp_reply_header); | |
894 | *rbuf = buffer + 12; | |
895 | *cnt = WVAL_LH(buffer + 10); | |
896 | *more = BVAL(buffer + 9); | |
897 | memcpy(seq, buffer, 9); | |
898 | return 0; | |
899 | } | |
900 | ||
901 | static int | |
902 | ncp_RenameNSEntry(struct ncp_server *server, | |
2e54eb96 PV |
903 | struct inode *old_dir, const char *old_name, __le16 old_type, |
904 | struct inode *new_dir, const char *new_name) | |
1da177e4 LT |
905 | { |
906 | int result = -EINVAL; | |
907 | ||
908 | if ((old_dir == NULL) || (old_name == NULL) || | |
909 | (new_dir == NULL) || (new_name == NULL)) | |
910 | goto out; | |
911 | ||
912 | ncp_init_request(server); | |
913 | ncp_add_byte(server, 4); /* subfunction */ | |
914 | ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]); | |
915 | ncp_add_byte(server, 1); /* rename flag */ | |
916 | ncp_add_word(server, old_type); /* search attributes */ | |
917 | ||
918 | /* source Handle Path */ | |
919 | ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber); | |
920 | ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum); | |
921 | ncp_add_byte(server, 1); | |
922 | ncp_add_byte(server, 1); /* 1 source component */ | |
923 | ||
924 | /* dest Handle Path */ | |
925 | ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber); | |
926 | ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum); | |
927 | ncp_add_byte(server, 1); | |
928 | ncp_add_byte(server, 1); /* 1 destination component */ | |
929 | ||
930 | /* source path string */ | |
931 | ncp_add_pstring(server, old_name); | |
932 | /* dest path string */ | |
933 | ncp_add_pstring(server, new_name); | |
934 | ||
935 | result = ncp_request(server, 87); | |
936 | ncp_unlock_server(server); | |
937 | out: | |
938 | return result; | |
939 | } | |
940 | ||
941 | int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server, | |
2e54eb96 PV |
942 | struct inode *old_dir, const char *old_name, |
943 | struct inode *new_dir, const char *new_name) | |
1da177e4 LT |
944 | { |
945 | int result; | |
946 | __le16 old_type = cpu_to_le16(0x06); | |
947 | ||
948 | /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */ | |
949 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
950 | new_dir, new_name); | |
951 | if (result == 0xFF) /* File Not Found, try directory */ | |
952 | { | |
953 | old_type = cpu_to_le16(0x16); | |
954 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
955 | new_dir, new_name); | |
956 | } | |
957 | if (result != 0x92) return result; /* All except NO_FILES_RENAMED */ | |
958 | result = ncp_del_file_or_subdir(server, new_dir, new_name); | |
959 | if (result != 0) return -EACCES; | |
960 | result = ncp_RenameNSEntry(server, old_dir, old_name, old_type, | |
961 | new_dir, new_name); | |
962 | return result; | |
963 | } | |
964 | ||
965 | ||
966 | /* We have to transfer to/from user space */ | |
967 | int | |
968 | ncp_read_kernel(struct ncp_server *server, const char *file_id, | |
969 | __u32 offset, __u16 to_read, char *target, int *bytes_read) | |
970 | { | |
2e54eb96 | 971 | const char *source; |
1da177e4 LT |
972 | int result; |
973 | ||
974 | ncp_init_request(server); | |
975 | ncp_add_byte(server, 0); | |
976 | ncp_add_mem(server, file_id, 6); | |
977 | ncp_add_be32(server, offset); | |
978 | ncp_add_be16(server, to_read); | |
979 | ||
980 | if ((result = ncp_request(server, 72)) != 0) { | |
981 | goto out; | |
982 | } | |
983 | *bytes_read = ncp_reply_be16(server, 0); | |
4c41aa24 DC |
984 | if (*bytes_read > to_read) { |
985 | result = -EINVAL; | |
986 | goto out; | |
987 | } | |
1da177e4 LT |
988 | source = ncp_reply_data(server, 2 + (offset & 1)); |
989 | ||
990 | memcpy(target, source, *bytes_read); | |
991 | out: | |
992 | ncp_unlock_server(server); | |
993 | return result; | |
994 | } | |
995 | ||
996 | /* There is a problem... egrep and some other silly tools do: | |
997 | x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768); | |
998 | read(<ncpfs fd>, x, 32768); | |
999 | Now copying read result by copy_to_user causes pagefault. This pagefault | |
1000 | could not be handled because of server was locked due to read. So we have | |
1001 | to use temporary buffer. So ncp_unlock_server must be done before | |
1002 | copy_to_user (and for write, copy_from_user must be done before | |
1003 | ncp_init_request... same applies for send raw packet ioctl). Because of | |
1004 | file is normally read in bigger chunks, caller provides kmalloced | |
1005 | (vmalloced) chunk of memory with size >= to_read... | |
1006 | */ | |
1007 | int | |
1008 | ncp_read_bounce(struct ncp_server *server, const char *file_id, | |
274a4886 AV |
1009 | __u32 offset, __u16 to_read, struct iov_iter *to, |
1010 | int *bytes_read, void *bounce, __u32 bufsize) | |
1da177e4 LT |
1011 | { |
1012 | int result; | |
1013 | ||
1014 | ncp_init_request(server); | |
1015 | ncp_add_byte(server, 0); | |
1016 | ncp_add_mem(server, file_id, 6); | |
1017 | ncp_add_be32(server, offset); | |
1018 | ncp_add_be16(server, to_read); | |
1019 | result = ncp_request2(server, 72, bounce, bufsize); | |
1020 | ncp_unlock_server(server); | |
1021 | if (!result) { | |
97a4feb4 HH |
1022 | int len = get_unaligned_be16((char *)bounce + |
1023 | sizeof(struct ncp_reply_header)); | |
1da177e4 LT |
1024 | result = -EIO; |
1025 | if (len <= to_read) { | |
1026 | char* source; | |
1027 | ||
1028 | source = (char*)bounce + | |
1029 | sizeof(struct ncp_reply_header) + 2 + | |
1030 | (offset & 1); | |
1031 | *bytes_read = len; | |
1032 | result = 0; | |
274a4886 | 1033 | if (copy_to_iter(source, len, to) != len) |
1da177e4 LT |
1034 | result = -EFAULT; |
1035 | } | |
1036 | } | |
1037 | return result; | |
1038 | } | |
1039 | ||
1040 | int | |
1041 | ncp_write_kernel(struct ncp_server *server, const char *file_id, | |
1042 | __u32 offset, __u16 to_write, | |
1043 | const char *source, int *bytes_written) | |
1044 | { | |
1045 | int result; | |
1046 | ||
1047 | ncp_init_request(server); | |
1048 | ncp_add_byte(server, 0); | |
1049 | ncp_add_mem(server, file_id, 6); | |
1050 | ncp_add_be32(server, offset); | |
1051 | ncp_add_be16(server, to_write); | |
1052 | ncp_add_mem(server, source, to_write); | |
1053 | ||
1054 | if ((result = ncp_request(server, 73)) == 0) | |
1055 | *bytes_written = to_write; | |
1056 | ncp_unlock_server(server); | |
1057 | return result; | |
1058 | } | |
1059 | ||
1060 | #ifdef CONFIG_NCPFS_IOCTL_LOCKING | |
1061 | int | |
1062 | ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id, | |
1063 | __u8 locktype, __u32 offset, __u32 length, __u16 timeout) | |
1064 | { | |
1065 | int result; | |
1066 | ||
1067 | ncp_init_request(server); | |
1068 | ncp_add_byte(server, locktype); | |
1069 | ncp_add_mem(server, file_id, 6); | |
1070 | ncp_add_be32(server, offset); | |
1071 | ncp_add_be32(server, length); | |
1072 | ncp_add_be16(server, timeout); | |
1073 | ||
1074 | if ((result = ncp_request(server, 0x1A)) != 0) | |
1075 | { | |
1076 | ncp_unlock_server(server); | |
1077 | return result; | |
1078 | } | |
1079 | ncp_unlock_server(server); | |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | int | |
1084 | ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id, | |
1085 | __u32 offset, __u32 length) | |
1086 | { | |
1087 | int result; | |
1088 | ||
1089 | ncp_init_request(server); | |
1090 | ncp_add_byte(server, 0); /* who knows... lanalyzer says that */ | |
1091 | ncp_add_mem(server, file_id, 6); | |
1092 | ncp_add_be32(server, offset); | |
1093 | ncp_add_be32(server, length); | |
1094 | ||
1095 | if ((result = ncp_request(server, 0x1E)) != 0) | |
1096 | { | |
1097 | ncp_unlock_server(server); | |
1098 | return result; | |
1099 | } | |
1100 | ncp_unlock_server(server); | |
1101 | return 0; | |
1102 | } | |
1103 | #endif /* CONFIG_NCPFS_IOCTL_LOCKING */ | |
1104 | ||
1105 | #ifdef CONFIG_NCPFS_NLS | |
1106 | /* This are the NLS conversion routines with inspirations and code parts | |
1107 | * from the vfat file system and hints from Petr Vandrovec. | |
1108 | */ | |
1109 | ||
1110 | int | |
1111 | ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen, | |
1112 | const unsigned char *iname, unsigned int ilen, int cc) | |
1113 | { | |
1114 | struct nls_table *in = server->nls_io; | |
1115 | struct nls_table *out = server->nls_vol; | |
1116 | unsigned char *vname_start; | |
1117 | unsigned char *vname_end; | |
1118 | const unsigned char *iname_end; | |
1119 | ||
1120 | iname_end = iname + ilen; | |
1121 | vname_start = vname; | |
1122 | vname_end = vname + *vlen - 1; | |
1123 | ||
1124 | while (iname < iname_end) { | |
1125 | int chl; | |
1126 | wchar_t ec; | |
1127 | ||
1128 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { | |
1129 | int k; | |
74675a58 | 1130 | unicode_t u; |
1da177e4 | 1131 | |
74675a58 AS |
1132 | k = utf8_to_utf32(iname, iname_end - iname, &u); |
1133 | if (k < 0 || u > MAX_WCHAR_T) | |
1da177e4 LT |
1134 | return -EINVAL; |
1135 | iname += k; | |
74675a58 | 1136 | ec = u; |
1da177e4 LT |
1137 | } else { |
1138 | if (*iname == NCP_ESC) { | |
1139 | int k; | |
1140 | ||
1141 | if (iname_end - iname < 5) | |
1142 | goto nospec; | |
1143 | ||
1144 | ec = 0; | |
1145 | for (k = 1; k < 5; k++) { | |
1146 | unsigned char nc; | |
1147 | ||
1148 | nc = iname[k] - '0'; | |
1149 | if (nc >= 10) { | |
1150 | nc -= 'A' - '0' - 10; | |
1151 | if ((nc < 10) || (nc > 15)) { | |
1152 | goto nospec; | |
1153 | } | |
1154 | } | |
1155 | ec = (ec << 4) | nc; | |
1156 | } | |
1157 | iname += 5; | |
1158 | } else { | |
1159 | nospec:; | |
1160 | if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0) | |
1161 | return chl; | |
1162 | iname += chl; | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | /* unitoupper should be here! */ | |
1167 | ||
1168 | chl = out->uni2char(ec, vname, vname_end - vname); | |
1169 | if (chl < 0) | |
1170 | return chl; | |
1171 | ||
1172 | /* this is wrong... */ | |
1173 | if (cc) { | |
1174 | int chi; | |
1175 | ||
1176 | for (chi = 0; chi < chl; chi++){ | |
1177 | vname[chi] = ncp_toupper(out, vname[chi]); | |
1178 | } | |
1179 | } | |
1180 | vname += chl; | |
1181 | } | |
1182 | ||
1183 | *vname = 0; | |
1184 | *vlen = vname - vname_start; | |
1185 | return 0; | |
1186 | } | |
1187 | ||
1188 | int | |
1189 | ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen, | |
1190 | const unsigned char *vname, unsigned int vlen, int cc) | |
1191 | { | |
1192 | struct nls_table *in = server->nls_vol; | |
1193 | struct nls_table *out = server->nls_io; | |
1194 | const unsigned char *vname_end; | |
1195 | unsigned char *iname_start; | |
1196 | unsigned char *iname_end; | |
1197 | unsigned char *vname_cc; | |
1198 | int err; | |
1199 | ||
1200 | vname_cc = NULL; | |
1201 | ||
1202 | if (cc) { | |
1203 | int i; | |
1204 | ||
1205 | /* this is wrong! */ | |
1206 | vname_cc = kmalloc(vlen, GFP_KERNEL); | |
1207 | if (!vname_cc) | |
1208 | return -ENOMEM; | |
1209 | for (i = 0; i < vlen; i++) | |
1210 | vname_cc[i] = ncp_tolower(in, vname[i]); | |
1211 | vname = vname_cc; | |
1212 | } | |
1213 | ||
1214 | iname_start = iname; | |
1215 | iname_end = iname + *ilen - 1; | |
1216 | vname_end = vname + vlen; | |
1217 | ||
1218 | while (vname < vname_end) { | |
1219 | wchar_t ec; | |
1220 | int chl; | |
1221 | ||
1222 | if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) { | |
1223 | err = chl; | |
1224 | goto quit; | |
1225 | } | |
1226 | vname += chl; | |
1227 | ||
1228 | /* unitolower should be here! */ | |
1229 | ||
1230 | if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) { | |
1231 | int k; | |
1232 | ||
74675a58 | 1233 | k = utf32_to_utf8(ec, iname, iname_end - iname); |
1da177e4 LT |
1234 | if (k < 0) { |
1235 | err = -ENAMETOOLONG; | |
1236 | goto quit; | |
1237 | } | |
1238 | iname += k; | |
1239 | } else { | |
1240 | if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) { | |
1241 | iname += chl; | |
1242 | } else { | |
1243 | int k; | |
1244 | ||
1245 | if (iname_end - iname < 5) { | |
1246 | err = -ENAMETOOLONG; | |
1247 | goto quit; | |
1248 | } | |
1249 | *iname = NCP_ESC; | |
1250 | for (k = 4; k > 0; k--) { | |
1251 | unsigned char v; | |
1252 | ||
1253 | v = (ec & 0xF) + '0'; | |
1254 | if (v > '9') { | |
1255 | v += 'A' - '9' - 1; | |
1256 | } | |
1257 | iname[k] = v; | |
1258 | ec >>= 4; | |
1259 | } | |
1260 | iname += 5; | |
1261 | } | |
1262 | } | |
1263 | } | |
1264 | ||
1265 | *iname = 0; | |
1266 | *ilen = iname - iname_start; | |
1267 | err = 0; | |
1268 | quit:; | |
1269 | if (cc) | |
1270 | kfree(vname_cc); | |
1271 | return err; | |
1272 | } | |
1273 | ||
1274 | #else | |
1275 | ||
1276 | int | |
1277 | ncp__io2vol(unsigned char *vname, unsigned int *vlen, | |
1278 | const unsigned char *iname, unsigned int ilen, int cc) | |
1279 | { | |
1280 | int i; | |
1281 | ||
1282 | if (*vlen <= ilen) | |
1283 | return -ENAMETOOLONG; | |
1284 | ||
1285 | if (cc) | |
1286 | for (i = 0; i < ilen; i++) { | |
1287 | *vname = toupper(*iname); | |
1288 | vname++; | |
1289 | iname++; | |
1290 | } | |
1291 | else { | |
1292 | memmove(vname, iname, ilen); | |
1293 | vname += ilen; | |
1294 | } | |
1295 | ||
1296 | *vlen = ilen; | |
1297 | *vname = 0; | |
1298 | return 0; | |
1299 | } | |
1300 | ||
1301 | int | |
1302 | ncp__vol2io(unsigned char *iname, unsigned int *ilen, | |
1303 | const unsigned char *vname, unsigned int vlen, int cc) | |
1304 | { | |
1305 | int i; | |
1306 | ||
1307 | if (*ilen <= vlen) | |
1308 | return -ENAMETOOLONG; | |
1309 | ||
1310 | if (cc) | |
1311 | for (i = 0; i < vlen; i++) { | |
1312 | *iname = tolower(*vname); | |
1313 | iname++; | |
1314 | vname++; | |
1315 | } | |
1316 | else { | |
1317 | memmove(iname, vname, vlen); | |
1318 | iname += vlen; | |
1319 | } | |
1320 | ||
1321 | *ilen = vlen; | |
1322 | *iname = 0; | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | #endif |