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
12 #include <linux/config.h>
14 #include "ncplib_kernel.h"
16 static inline void assert_server_locked(struct ncp_server *server)
18 if (server->lock == 0) {
19 DPRINTK("ncpfs: server not locked!\n");
23 static void ncp_add_byte(struct ncp_server *server, __u8 x)
25 assert_server_locked(server);
26 *(__u8 *) (&(server->packet[server->current_size])) = x;
27 server->current_size += 1;
31 static void ncp_add_word(struct ncp_server *server, __u16 x)
33 assert_server_locked(server);
34 put_unaligned(x, (__u16 *) (&(server->packet[server->current_size])));
35 server->current_size += 2;
39 static void ncp_add_dword(struct ncp_server *server, __u32 x)
41 assert_server_locked(server);
42 put_unaligned(x, (__u32 *) (&(server->packet[server->current_size])));
43 server->current_size += 4;
47 static void ncp_add_mem(struct ncp_server *server, const void *source, int size)
49 assert_server_locked(server);
50 memcpy(&(server->packet[server->current_size]), source, size);
51 server->current_size += size;
55 static void ncp_add_pstring(struct ncp_server *server, const char *s)
58 assert_server_locked(server);
60 DPRINTK("ncpfs: string too long: %s\n", s);
63 ncp_add_byte(server, len);
64 ncp_add_mem(server, s, len);
68 static inline void ncp_init_request(struct ncp_server *server)
70 ncp_lock_server(server);
72 server->current_size = sizeof(struct ncp_request_header);
73 server->has_subfunction = 0;
76 static inline void ncp_init_request_s(struct ncp_server *server, int subfunction)
78 ncp_lock_server(server);
80 server->current_size = sizeof(struct ncp_request_header) + 2;
81 ncp_add_byte(server, subfunction);
83 server->has_subfunction = 1;
87 ncp_reply_data(struct ncp_server *server, int offset)
89 return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
93 ncp_reply_byte(struct ncp_server *server, int offset)
95 return get_unaligned((__u8 *) ncp_reply_data(server, offset));
99 ncp_reply_word(struct ncp_server *server, int offset)
101 return get_unaligned((__u16 *) ncp_reply_data(server, offset));
105 ncp_reply_dword(struct ncp_server *server, int offset)
107 return get_unaligned((__u32 *) ncp_reply_data(server, offset));
111 ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target)
115 ncp_init_request(server);
116 ncp_add_word(server, htons(size));
118 if ((result = ncp_request(server, 33)) != 0) {
119 ncp_unlock_server(server);
122 *target = min_t(unsigned int, ntohs(ncp_reply_word(server, 0)), size);
124 ncp_unlock_server(server);
131 * bit 1 packet signing
134 ncp_negotiate_size_and_options(struct ncp_server *server,
135 int size, int options, int *ret_size, int *ret_options) {
138 /* there is minimum */
139 if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE;
141 ncp_init_request(server);
142 ncp_add_word(server, htons(size));
143 ncp_add_byte(server, options);
145 if ((result = ncp_request(server, 0x61)) != 0)
147 ncp_unlock_server(server);
151 /* NCP over UDP returns 0 (!!!) */
152 result = ntohs(ncp_reply_word(server, 0));
153 if (result >= NCP_BLOCK_SIZE)
154 size = min(result, size);
156 *ret_options = ncp_reply_byte(server, 4);
158 ncp_unlock_server(server);
163 ncp_get_volume_info_with_number(struct ncp_server *server, int n,
164 struct ncp_volume_info *target)
169 ncp_init_request_s(server, 44);
170 ncp_add_byte(server, n);
172 if ((result = ncp_request(server, 22)) != 0) {
175 target->total_blocks = ncp_reply_dword(server, 0);
176 target->free_blocks = ncp_reply_dword(server, 4);
177 target->purgeable_blocks = ncp_reply_dword(server, 8);
178 target->not_yet_purgeable_blocks = ncp_reply_dword(server, 12);
179 target->total_dir_entries = ncp_reply_dword(server, 16);
180 target->available_dir_entries = ncp_reply_dword(server, 20);
181 target->sectors_per_block = ncp_reply_byte(server, 28);
183 memset(&(target->volume_name), 0, sizeof(target->volume_name));
186 len = ncp_reply_byte(server, 29);
187 if (len > NCP_VOLNAME_LEN) {
188 DPRINTK("ncpfs: volume name too long: %d\n", len);
191 memcpy(&(target->volume_name), ncp_reply_data(server, 30), len);
194 ncp_unlock_server(server);
199 ncp_close_file(struct ncp_server *server, const char *file_id)
203 ncp_init_request(server);
204 ncp_add_byte(server, 0);
205 ncp_add_mem(server, file_id, 6);
207 result = ncp_request(server, 66);
208 ncp_unlock_server(server);
213 ncp_make_closed(struct inode *inode)
218 down(&NCP_FINFO(inode)->open_sem);
219 if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
220 atomic_set(&NCP_FINFO(inode)->opened, 0);
221 err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
224 PPRINTK("ncp_make_closed: volnum=%d, dirent=%u, error=%d\n",
225 NCP_FINFO(inode)->volNumber,
226 NCP_FINFO(inode)->dirEntNum, err);
228 up(&NCP_FINFO(inode)->open_sem);
232 static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num,
233 __u32 dir_base, int have_dir_base,
236 ncp_add_byte(server, vol_num);
237 ncp_add_dword(server, dir_base);
238 if (have_dir_base != 0) {
239 ncp_add_byte(server, 1); /* dir_base */
241 ncp_add_byte(server, 0xff); /* no handle */
244 ncp_add_byte(server, 1); /* 1 component */
245 ncp_add_pstring(server, path);
247 ncp_add_byte(server, 0);
251 static void ncp_extract_file_info(void *structure, struct nw_info_struct *target)
254 const int info_struct_size = sizeof(struct nw_info_struct) - 257;
256 memcpy(target, structure, info_struct_size);
257 name_len = structure + info_struct_size;
258 target->nameLen = *name_len;
259 memcpy(target->entryName, name_len + 1, *name_len);
260 target->entryName[*name_len] = '\0';
261 target->volNumber = le32_to_cpu(target->volNumber);
266 * Returns information for a (one-component) name relative to
267 * the specified directory.
269 int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path,
270 struct nw_info_struct *target)
272 __u8 volnum = NCP_FINFO(dir)->volNumber;
273 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
276 if (target == NULL) {
277 printk(KERN_ERR "ncp_obtain_info: invalid call\n");
280 ncp_init_request(server);
281 ncp_add_byte(server, 6); /* subfunction */
282 ncp_add_byte(server, server->name_space[volnum]);
283 ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */
284 ncp_add_word(server, htons(0x0680)); /* get all */
285 ncp_add_dword(server, RIM_ALL);
286 ncp_add_handle_path(server, volnum, dirent, 1, path);
288 if ((result = ncp_request(server, 87)) != 0)
290 ncp_extract_file_info(ncp_reply_data(server, 0), target);
293 ncp_unlock_server(server);
297 #ifdef CONFIG_NCPFS_NFS_NS
299 ncp_obtain_DOS_dir_base(struct ncp_server *server,
300 __u8 volnum, __u32 dirent,
301 char *path, /* At most 1 component */
306 ncp_init_request(server);
307 ncp_add_byte(server, 6); /* subfunction */
308 ncp_add_byte(server, server->name_space[volnum]);
309 ncp_add_byte(server, server->name_space[volnum]);
310 ncp_add_word(server, htons(0x0680)); /* get all */
311 ncp_add_dword(server, RIM_DIRECTORY);
312 ncp_add_handle_path(server, volnum, dirent, 1, path);
314 if ((result = ncp_request(server, 87)) == 0)
316 if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
318 ncp_unlock_server(server);
321 #endif /* CONFIG_NCPFS_NFS_NS */
324 ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
326 #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
331 ncp_init_request(server);
332 ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */
333 ncp_add_word(server, 0);
334 ncp_add_byte(server, volume);
336 if ((result = ncp_request(server, 87)) != 0) {
337 ncp_unlock_server(server);
338 return NW_NS_DOS; /* not result ?? */
342 no_namespaces = le16_to_cpu(ncp_reply_word(server, 0));
343 namespace = ncp_reply_data(server, 2);
345 while (no_namespaces > 0) {
346 DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume);
348 #ifdef CONFIG_NCPFS_NFS_NS
349 if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS))
354 #endif /* CONFIG_NCPFS_NFS_NS */
355 #ifdef CONFIG_NCPFS_OS2_NS
356 if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2))
360 #endif /* CONFIG_NCPFS_OS2_NS */
364 ncp_unlock_server(server);
366 #else /* neither OS2 nor NFS - only DOS */
368 #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
372 ncp_ObtainSpecificDirBase(struct ncp_server *server,
373 __u8 nsSrc, __u8 nsDst, __u8 vol_num, __u32 dir_base,
374 char *path, /* At most 1 component */
375 __u32 *dirEntNum, __u32 *DosDirNum)
379 ncp_init_request(server);
380 ncp_add_byte(server, 6); /* subfunction */
381 ncp_add_byte(server, nsSrc);
382 ncp_add_byte(server, nsDst);
383 ncp_add_word(server, htons(0x0680)); /* get all */
384 ncp_add_dword(server, RIM_ALL);
385 ncp_add_handle_path(server, vol_num, dir_base, 1, path);
387 if ((result = ncp_request(server, 87)) != 0)
389 ncp_unlock_server(server);
394 *dirEntNum = ncp_reply_dword(server, 0x30);
396 *DosDirNum = ncp_reply_dword(server, 0x34);
397 ncp_unlock_server(server);
402 ncp_mount_subdir(struct ncp_server *server, struct nw_info_struct *i,
403 __u8 volNumber, __u8 srcNS, __u32 dirEntNum)
410 dstNS = ncp_get_known_namespace(server, volNumber);
411 if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber,
412 dirEntNum, NULL, &newDirEnt, &newDosEnt)) != 0)
416 server->name_space[volNumber] = dstNS;
417 i->volNumber = volNumber;
418 i->dirEntNum = newDirEnt;
419 i->DosDirNum = newDosEnt;
420 server->m.mounted_vol[1] = 0;
421 server->m.mounted_vol[0] = 'X';
426 ncp_lookup_volume(struct ncp_server *server, char *volname,
427 struct nw_info_struct *target)
432 DPRINTK("ncp_lookup_volume: looking up vol %s\n", volname);
434 ncp_init_request(server);
435 ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */
436 ncp_add_byte(server, 0); /* DOS namespace */
437 ncp_add_byte(server, 0); /* reserved */
438 ncp_add_byte(server, 0); /* reserved */
439 ncp_add_byte(server, 0); /* reserved */
441 ncp_add_byte(server, 0); /* faked volume number */
442 ncp_add_dword(server, 0); /* faked dir_base */
443 ncp_add_byte(server, 0xff); /* Don't have a dir_base */
444 ncp_add_byte(server, 1); /* 1 path component */
445 ncp_add_pstring(server, volname);
447 if ((result = ncp_request(server, 87)) != 0) {
448 ncp_unlock_server(server);
451 memset(target, 0, sizeof(*target));
452 target->DosDirNum = target->dirEntNum = ncp_reply_dword(server, 4);
453 target->volNumber = volnum = ncp_reply_byte(server, 8);
454 ncp_unlock_server(server);
456 server->name_space[volnum] = ncp_get_known_namespace(server, volnum);
458 DPRINTK("lookup_vol: namespace[%d] = %d\n",
459 volnum, server->name_space[volnum]);
461 target->nameLen = strlen(volname);
462 memcpy(target->entryName, volname, target->nameLen+1);
463 target->attributes = aDIR;
464 /* set dates to Jan 1, 1986 00:00 */
465 target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
466 target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
470 int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
474 const struct nw_modify_dos_info *info)
476 __u8 volnum = NCP_FINFO(dir)->volNumber;
477 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
480 ncp_init_request(server);
481 ncp_add_byte(server, 7); /* subfunction */
482 ncp_add_byte(server, server->name_space[volnum]);
483 ncp_add_byte(server, 0); /* reserved */
484 ncp_add_word(server, htons(0x0680)); /* search attribs: all */
486 ncp_add_dword(server, info_mask);
487 ncp_add_mem(server, info, sizeof(*info));
488 ncp_add_handle_path(server, volnum, dirent, 1, path);
490 result = ncp_request(server, 87);
491 ncp_unlock_server(server);
495 int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
498 const struct nw_modify_dos_info *info)
500 return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
505 ncp_DeleteNSEntry(struct ncp_server *server,
506 __u8 have_dir_base, __u8 volnum, __u32 dirent,
507 char* name, __u8 ns, int attr)
511 ncp_init_request(server);
512 ncp_add_byte(server, 8); /* subfunction */
513 ncp_add_byte(server, ns);
514 ncp_add_byte(server, 0); /* reserved */
515 ncp_add_word(server, attr); /* search attribs: all */
516 ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
518 result = ncp_request(server, 87);
519 ncp_unlock_server(server);
524 ncp_del_file_or_subdir2(struct ncp_server *server,
525 struct dentry *dentry)
527 struct inode *inode = dentry->d_inode;
532 #if CONFIG_NCPFS_DEBUGDENTRY
533 PRINTK("ncpfs: ncpdel2: dentry->d_inode == NULL\n");
535 return 0xFF; /* Any error */
537 volnum = NCP_FINFO(inode)->volNumber;
538 dirent = NCP_FINFO(inode)->DosDirNum;
539 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
543 ncp_del_file_or_subdir(struct ncp_server *server,
544 struct inode *dir, char *name)
546 __u8 volnum = NCP_FINFO(dir)->volNumber;
547 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
549 #ifdef CONFIG_NCPFS_NFS_NS
550 if (server->name_space[volnum]==NW_NS_NFS)
554 result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent);
555 if (result) return result;
556 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
559 #endif /* CONFIG_NCPFS_NFS_NS */
560 return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], htons(0x0680));
563 static inline void ConvertToNWfromDWORD(__u32 sfd, __u8 ret[6])
565 __u16 *dest = (__u16 *) ret;
566 memcpy(ret + 2, &sfd, 4);
567 dest[0] = cpu_to_le16((le16_to_cpu(dest[1]) + le16_to_cpu(1)));
571 /* If both dir and name are NULL, then in target there's already a
572 looked-up entry that wants to be opened. */
573 int ncp_open_create_file_or_subdir(struct ncp_server *server,
574 struct inode *dir, char *name,
575 int open_create_mode,
576 __u32 create_attributes,
577 int desired_acc_rights,
578 struct ncp_entry_info *target)
580 __u16 search_attribs = ntohs(0x0600);
581 __u8 volnum = target->i.volNumber;
582 __u32 dirent = target->i.dirEntNum;
587 volnum = NCP_FINFO(dir)->volNumber;
588 dirent = NCP_FINFO(dir)->dirEntNum;
591 if ((create_attributes & aDIR) != 0) {
592 search_attribs |= ntohs(0x0080);
594 ncp_init_request(server);
595 ncp_add_byte(server, 1); /* subfunction */
596 ncp_add_byte(server, server->name_space[volnum]);
597 ncp_add_byte(server, open_create_mode);
598 ncp_add_word(server, search_attribs);
599 ncp_add_dword(server, RIM_ALL);
600 ncp_add_dword(server, create_attributes);
601 /* The desired acc rights seem to be the inherited rights mask
603 ncp_add_word(server, desired_acc_rights);
604 ncp_add_handle_path(server, volnum, dirent, 1, name);
606 if ((result = ncp_request(server, 87)) != 0)
608 if (!(create_attributes & aDIR))
610 target->server_file_handle = ncp_reply_dword(server, 0);
611 target->open_create_action = ncp_reply_byte(server, 4);
613 /* in target there's a new finfo to fill */
614 ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
615 ConvertToNWfromDWORD(target->server_file_handle, target->file_handle);
618 ncp_unlock_server(server);
623 ncp_initialize_search(struct ncp_server *server, struct inode *dir,
624 struct nw_search_sequence *target)
626 __u8 volnum = NCP_FINFO(dir)->volNumber;
627 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
630 ncp_init_request(server);
631 ncp_add_byte(server, 2); /* subfunction */
632 ncp_add_byte(server, server->name_space[volnum]);
633 ncp_add_byte(server, 0); /* reserved */
634 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
636 result = ncp_request(server, 87);
639 memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
642 ncp_unlock_server(server);
646 /* Search for everything */
647 int ncp_search_for_file_or_subdir(struct ncp_server *server,
648 struct nw_search_sequence *seq,
649 struct nw_info_struct *target)
653 ncp_init_request(server);
654 ncp_add_byte(server, 3); /* subfunction */
655 ncp_add_byte(server, server->name_space[seq->volNumber]);
656 ncp_add_byte(server, 0); /* data stream (???) */
657 ncp_add_word(server, htons(0x0680)); /* Search attribs */
658 ncp_add_dword(server, RIM_ALL); /* return info mask */
659 ncp_add_mem(server, seq, 9);
660 #ifdef CONFIG_NCPFS_NFS_NS
661 if (server->name_space[seq->volNumber] == NW_NS_NFS) {
662 ncp_add_byte(server, 0); /* 0 byte pattern */
666 ncp_add_byte(server, 2); /* 2 byte pattern */
667 ncp_add_byte(server, 0xff); /* following is a wildcard */
668 ncp_add_byte(server, '*');
671 if ((result = ncp_request(server, 87)) != 0)
673 memcpy(seq, ncp_reply_data(server, 0), sizeof(*seq));
674 ncp_extract_file_info(ncp_reply_data(server, 10), target);
677 ncp_unlock_server(server);
682 ncp_RenameNSEntry(struct ncp_server *server,
683 struct inode *old_dir, char *old_name, int old_type,
684 struct inode *new_dir, char *new_name)
686 int result = -EINVAL;
688 if ((old_dir == NULL) || (old_name == NULL) ||
689 (new_dir == NULL) || (new_name == NULL))
692 ncp_init_request(server);
693 ncp_add_byte(server, 4); /* subfunction */
694 ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
695 ncp_add_byte(server, 1); /* rename flag */
696 ncp_add_word(server, old_type); /* search attributes */
698 /* source Handle Path */
699 ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
700 ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
701 ncp_add_byte(server, 1);
702 ncp_add_byte(server, 1); /* 1 source component */
704 /* dest Handle Path */
705 ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
706 ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
707 ncp_add_byte(server, 1);
708 ncp_add_byte(server, 1); /* 1 destination component */
710 /* source path string */
711 ncp_add_pstring(server, old_name);
712 /* dest path string */
713 ncp_add_pstring(server, new_name);
715 result = ncp_request(server, 87);
716 ncp_unlock_server(server);
721 int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
722 struct inode *old_dir, char *old_name,
723 struct inode *new_dir, char *new_name)
726 int old_type = htons(0x0600);
728 /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
729 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
731 if (result == 0xFF) /* File Not Found, try directory */
733 old_type = htons(0x1600);
734 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
737 if (result != 0x92) return result; /* All except NO_FILES_RENAMED */
738 result = ncp_del_file_or_subdir(server, new_dir, new_name);
739 if (result != 0) return -EACCES;
740 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
746 /* We have to transfer to/from user space */
748 ncp_read_kernel(struct ncp_server *server, const char *file_id,
749 __u32 offset, __u16 to_read, char *target, int *bytes_read)
754 ncp_init_request(server);
755 ncp_add_byte(server, 0);
756 ncp_add_mem(server, file_id, 6);
757 ncp_add_dword(server, htonl(offset));
758 ncp_add_word(server, htons(to_read));
760 if ((result = ncp_request(server, 72)) != 0) {
763 *bytes_read = ntohs(ncp_reply_word(server, 0));
764 source = ncp_reply_data(server, 2 + (offset & 1));
766 memcpy(target, source, *bytes_read);
768 ncp_unlock_server(server);
772 /* There is a problem... egrep and some other silly tools do:
773 x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
774 read(<ncpfs fd>, x, 32768);
775 Now copying read result by copy_to_user causes pagefault. This pagefault
776 could not be handled because of server was locked due to read. So we have
777 to use temporary buffer. So ncp_unlock_server must be done before
778 copy_to_user (and for write, copy_from_user must be done before
779 ncp_init_request... same applies for send raw packet ioctl). Because of
780 file is normally read in bigger chunks, caller provides kmalloced
781 (vmalloced) chunk of memory with size >= to_read...
784 ncp_read_bounce(struct ncp_server *server, const char *file_id,
785 __u32 offset, __u16 to_read, char *target, int *bytes_read,
786 void* bounce, __u32 bufsize)
790 ncp_init_request(server);
791 ncp_add_byte(server, 0);
792 ncp_add_mem(server, file_id, 6);
793 ncp_add_dword(server, htonl(offset));
794 ncp_add_word(server, htons(to_read));
795 result = ncp_request2(server, 72, bounce, bufsize);
796 ncp_unlock_server(server);
798 int len = be16_to_cpu(get_unaligned((__u16*)((char*)bounce +
799 sizeof(struct ncp_reply_header))));
801 if (len <= to_read) {
804 source = (char*)bounce +
805 sizeof(struct ncp_reply_header) + 2 +
809 if (copy_to_user(target, source, len))
817 ncp_write_kernel(struct ncp_server *server, const char *file_id,
818 __u32 offset, __u16 to_write,
819 const char *source, int *bytes_written)
823 ncp_init_request(server);
824 ncp_add_byte(server, 0);
825 ncp_add_mem(server, file_id, 6);
826 ncp_add_dword(server, htonl(offset));
827 ncp_add_word(server, htons(to_write));
828 ncp_add_mem(server, source, to_write);
830 if ((result = ncp_request(server, 73)) == 0)
831 *bytes_written = to_write;
832 ncp_unlock_server(server);
836 #ifdef CONFIG_NCPFS_IOCTL_LOCKING
838 ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
839 __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
843 ncp_init_request(server);
844 ncp_add_byte(server, locktype);
845 ncp_add_mem(server, file_id, 6);
846 ncp_add_dword(server, htonl(offset));
847 ncp_add_dword(server, htonl(length));
848 ncp_add_word(server, htons(timeout));
850 if ((result = ncp_request(server, 0x1A)) != 0)
852 ncp_unlock_server(server);
855 ncp_unlock_server(server);
860 ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
861 __u32 offset, __u32 length)
865 ncp_init_request(server);
866 ncp_add_byte(server, 0); /* who knows... lanalyzer says that */
867 ncp_add_mem(server, file_id, 6);
868 ncp_add_dword(server, htonl(offset));
869 ncp_add_dword(server, htonl(length));
871 if ((result = ncp_request(server, 0x1E)) != 0)
873 ncp_unlock_server(server);
876 ncp_unlock_server(server);
879 #endif /* CONFIG_NCPFS_IOCTL_LOCKING */
881 #ifdef CONFIG_NCPFS_NLS
882 /* This are the NLS conversion routines with inspirations and code parts
883 * from the vfat file system and hints from Petr Vandrovec.
887 ncp__tolower(struct nls_table *t, unsigned char c)
889 unsigned char nc = t->charset2lower[c];
895 ncp__toupper(struct nls_table *t, unsigned char c)
897 unsigned char nc = t->charset2upper[c];
903 ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
904 const unsigned char *iname, unsigned int ilen, int cc)
906 struct nls_table *in = server->nls_io;
907 struct nls_table *out = server->nls_vol;
908 unsigned char *vname_start;
909 unsigned char *vname_end;
910 const unsigned char *iname_end;
912 iname_end = iname + ilen;
914 vname_end = vname + *vlen - 1;
916 while (iname < iname_end) {
920 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
923 k = utf8_mbtowc(&ec, iname, iname_end - iname);
928 if (*iname == NCP_ESC) {
931 if (iname_end - iname < 5)
935 for (k = 1; k < 5; k++) {
940 nc -= 'A' - '0' - 10;
941 if ((nc < 10) || (nc > 15)) {
950 if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
956 /* unitoupper should be here! */
958 chl = out->uni2char(ec, vname, vname_end - vname);
962 /* this is wrong... */
966 for (chi = 0; chi < chl; chi++){
967 vname[chi] = ncp_toupper(out, vname[chi]);
974 *vlen = vname - vname_start;
979 ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
980 const unsigned char *vname, unsigned int vlen, int cc)
982 struct nls_table *in = server->nls_vol;
983 struct nls_table *out = server->nls_io;
984 const unsigned char *vname_end;
985 unsigned char *iname_start;
986 unsigned char *iname_end;
987 unsigned char *vname_cc;
996 vname_cc = kmalloc(vlen, GFP_KERNEL);
999 for (i = 0; i < vlen; i++)
1000 vname_cc[i] = ncp_tolower(in, vname[i]);
1004 iname_start = iname;
1005 iname_end = iname + *ilen - 1;
1006 vname_end = vname + vlen;
1008 while (vname < vname_end) {
1012 if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
1018 /* unitolower should be here! */
1020 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1023 k = utf8_wctomb(iname, ec, iname_end - iname);
1025 err = -ENAMETOOLONG;
1030 if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
1035 if (iname_end - iname < 5) {
1036 err = -ENAMETOOLONG;
1040 for (k = 4; k > 0; k--) {
1043 v = (ec & 0xF) + '0';
1056 *ilen = iname - iname_start;
1067 ncp__io2vol(unsigned char *vname, unsigned int *vlen,
1068 const unsigned char *iname, unsigned int ilen, int cc)
1073 return -ENAMETOOLONG;
1076 for (i = 0; i < ilen; i++) {
1077 *vname = toupper(*iname);
1082 memmove(vname, iname, ilen);
1092 ncp__vol2io(unsigned char *iname, unsigned int *ilen,
1093 const unsigned char *vname, unsigned int vlen, int cc)
1098 return -ENAMETOOLONG;
1101 for (i = 0; i < vlen; i++) {
1102 *iname = tolower(*vname);
1107 memmove(iname, vname, vlen);
1119 ncp_strnicmp(struct nls_table *t, const unsigned char *s1,
1120 const unsigned char *s2, int n)
1125 if (ncp_tolower(t, s1[i]) != ncp_tolower(t, s2[i]))