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
13 #include <linux/config.h>
15 #include "ncplib_kernel.h"
17 static inline void assert_server_locked(struct ncp_server *server)
19 if (server->lock == 0) {
20 DPRINTK("ncpfs: server not locked!\n");
24 static void ncp_add_byte(struct ncp_server *server, __u8 x)
26 assert_server_locked(server);
27 *(__u8 *) (&(server->packet[server->current_size])) = x;
28 server->current_size += 1;
32 static void ncp_add_word(struct ncp_server *server, __u16 x)
34 assert_server_locked(server);
35 put_unaligned(x, (__u16 *) (&(server->packet[server->current_size])));
36 server->current_size += 2;
40 static void ncp_add_dword(struct ncp_server *server, __u32 x)
42 assert_server_locked(server);
43 put_unaligned(x, (__u32 *) (&(server->packet[server->current_size])));
44 server->current_size += 4;
48 static inline void ncp_add_dword_lh(struct ncp_server *server, __u32 x) {
49 ncp_add_dword(server, cpu_to_le32(x));
52 static void ncp_add_mem(struct ncp_server *server, const void *source, int size)
54 assert_server_locked(server);
55 memcpy(&(server->packet[server->current_size]), source, size);
56 server->current_size += size;
60 static void ncp_add_pstring(struct ncp_server *server, const char *s)
63 assert_server_locked(server);
65 DPRINTK("ncpfs: string too long: %s\n", s);
68 ncp_add_byte(server, len);
69 ncp_add_mem(server, s, len);
73 static inline void ncp_init_request(struct ncp_server *server)
75 ncp_lock_server(server);
77 server->current_size = sizeof(struct ncp_request_header);
78 server->has_subfunction = 0;
81 static inline void ncp_init_request_s(struct ncp_server *server, int subfunction)
83 ncp_lock_server(server);
85 server->current_size = sizeof(struct ncp_request_header) + 2;
86 ncp_add_byte(server, subfunction);
88 server->has_subfunction = 1;
92 ncp_reply_data(struct ncp_server *server, int offset)
94 return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
97 static inline __u8 BVAL(void* data)
99 return get_unaligned((__u8*)data);
103 ncp_reply_byte(struct ncp_server *server, int offset)
105 return get_unaligned((__u8 *) ncp_reply_data(server, offset));
108 static inline __u16 WVAL_LH(void* data)
110 return le16_to_cpu(get_unaligned((__u16*)data));
114 ncp_reply_word(struct ncp_server *server, int offset)
116 return get_unaligned((__u16 *) ncp_reply_data(server, offset));
119 static inline __u32 DVAL_LH(void* data)
121 return le32_to_cpu(get_unaligned((__u32*)data));
125 ncp_reply_dword(struct ncp_server *server, int offset)
127 return get_unaligned((__u32 *) ncp_reply_data(server, offset));
130 static inline __u32 ncp_reply_dword_lh(struct ncp_server* server, int offset) {
131 return le32_to_cpu(ncp_reply_dword(server, offset));
135 ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target)
139 ncp_init_request(server);
140 ncp_add_word(server, htons(size));
142 if ((result = ncp_request(server, 33)) != 0) {
143 ncp_unlock_server(server);
146 *target = min_t(unsigned int, ntohs(ncp_reply_word(server, 0)), size);
148 ncp_unlock_server(server);
155 * bit 1 packet signing
158 ncp_negotiate_size_and_options(struct ncp_server *server,
159 int size, int options, int *ret_size, int *ret_options) {
162 /* there is minimum */
163 if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE;
165 ncp_init_request(server);
166 ncp_add_word(server, htons(size));
167 ncp_add_byte(server, options);
169 if ((result = ncp_request(server, 0x61)) != 0)
171 ncp_unlock_server(server);
175 /* NCP over UDP returns 0 (!!!) */
176 result = ntohs(ncp_reply_word(server, 0));
177 if (result >= NCP_BLOCK_SIZE)
178 size = min(result, size);
180 *ret_options = ncp_reply_byte(server, 4);
182 ncp_unlock_server(server);
186 int ncp_get_volume_info_with_number(struct ncp_server* server,
187 int n, struct ncp_volume_info* target) {
191 ncp_init_request_s(server, 44);
192 ncp_add_byte(server, n);
194 if ((result = ncp_request(server, 22)) != 0) {
197 target->total_blocks = ncp_reply_dword_lh(server, 0);
198 target->free_blocks = ncp_reply_dword_lh(server, 4);
199 target->purgeable_blocks = ncp_reply_dword_lh(server, 8);
200 target->not_yet_purgeable_blocks = ncp_reply_dword_lh(server, 12);
201 target->total_dir_entries = ncp_reply_dword_lh(server, 16);
202 target->available_dir_entries = ncp_reply_dword_lh(server, 20);
203 target->sectors_per_block = ncp_reply_byte(server, 28);
205 memset(&(target->volume_name), 0, sizeof(target->volume_name));
208 len = ncp_reply_byte(server, 29);
209 if (len > NCP_VOLNAME_LEN) {
210 DPRINTK("ncpfs: volume name too long: %d\n", len);
213 memcpy(&(target->volume_name), ncp_reply_data(server, 30), len);
216 ncp_unlock_server(server);
220 int ncp_get_directory_info(struct ncp_server* server, __u8 n,
221 struct ncp_volume_info* target) {
225 ncp_init_request_s(server, 45);
226 ncp_add_byte(server, n);
228 if ((result = ncp_request(server, 22)) != 0) {
231 target->total_blocks = ncp_reply_dword_lh(server, 0);
232 target->free_blocks = ncp_reply_dword_lh(server, 4);
233 target->purgeable_blocks = 0;
234 target->not_yet_purgeable_blocks = 0;
235 target->total_dir_entries = ncp_reply_dword_lh(server, 8);
236 target->available_dir_entries = ncp_reply_dword_lh(server, 12);
237 target->sectors_per_block = ncp_reply_byte(server, 20);
239 memset(&(target->volume_name), 0, sizeof(target->volume_name));
242 len = ncp_reply_byte(server, 21);
243 if (len > NCP_VOLNAME_LEN) {
244 DPRINTK("ncpfs: volume name too long: %d\n", len);
247 memcpy(&(target->volume_name), ncp_reply_data(server, 22), len);
250 ncp_unlock_server(server);
255 ncp_close_file(struct ncp_server *server, const char *file_id)
259 ncp_init_request(server);
260 ncp_add_byte(server, 0);
261 ncp_add_mem(server, file_id, 6);
263 result = ncp_request(server, 66);
264 ncp_unlock_server(server);
269 ncp_make_closed(struct inode *inode)
274 down(&NCP_FINFO(inode)->open_sem);
275 if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
276 atomic_set(&NCP_FINFO(inode)->opened, 0);
277 err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
280 PPRINTK("ncp_make_closed: volnum=%d, dirent=%u, error=%d\n",
281 NCP_FINFO(inode)->volNumber,
282 NCP_FINFO(inode)->dirEntNum, err);
284 up(&NCP_FINFO(inode)->open_sem);
288 static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num,
289 __u32 dir_base, int have_dir_base,
292 ncp_add_byte(server, vol_num);
293 ncp_add_dword(server, dir_base);
294 if (have_dir_base != 0) {
295 ncp_add_byte(server, 1); /* dir_base */
297 ncp_add_byte(server, 0xff); /* no handle */
300 ncp_add_byte(server, 1); /* 1 component */
301 ncp_add_pstring(server, path);
303 ncp_add_byte(server, 0);
307 int ncp_dirhandle_alloc(struct ncp_server* server, __u8 volnum, __u32 dirent,
311 ncp_init_request(server);
312 ncp_add_byte(server, 12); /* subfunction */
313 ncp_add_byte(server, NW_NS_DOS);
314 ncp_add_byte(server, 0);
315 ncp_add_word(server, 0);
316 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
317 if ((result = ncp_request(server, 87)) == 0) {
318 *dirhandle = ncp_reply_byte(server, 0);
320 ncp_unlock_server(server);
324 int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) {
327 ncp_init_request_s(server, 20);
328 ncp_add_byte(server, dirhandle);
329 result = ncp_request(server, 22);
330 ncp_unlock_server(server);
334 void ncp_extract_file_info(void *structure, struct nw_info_struct *target)
337 const int info_struct_size = offsetof(struct nw_info_struct, nameLen);
339 memcpy(target, structure, info_struct_size);
340 name_len = structure + info_struct_size;
341 target->nameLen = *name_len;
342 memcpy(target->entryName, name_len + 1, *name_len);
343 target->entryName[*name_len] = '\0';
344 target->volNumber = le32_to_cpu(target->volNumber);
348 #ifdef CONFIG_NCPFS_NFS_NS
349 static inline void ncp_extract_nfs_info(unsigned char *structure,
350 struct nw_nfs_info *target)
352 target->mode = DVAL_LH(structure);
353 target->rdev = DVAL_LH(structure + 8);
357 int ncp_obtain_nfs_info(struct ncp_server *server,
358 struct nw_info_struct *target)
362 #ifdef CONFIG_NCPFS_NFS_NS
363 __u32 volnum = target->volNumber;
365 if (ncp_is_nfs_extras(server, volnum)) {
366 ncp_init_request(server);
367 ncp_add_byte(server, 19); /* subfunction */
368 ncp_add_byte(server, server->name_space[volnum]);
369 ncp_add_byte(server, NW_NS_NFS);
370 ncp_add_byte(server, 0);
371 ncp_add_byte(server, volnum);
372 ncp_add_dword(server, target->dirEntNum);
373 /* We must retrieve both nlinks and rdev, otherwise some server versions
374 report zeroes instead of valid data */
375 ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
377 if ((result = ncp_request(server, 87)) == 0) {
378 ncp_extract_nfs_info(ncp_reply_data(server, 0), &target->nfs);
380 "ncp_obtain_nfs_info: (%s) mode=0%o, rdev=0x%x\n",
381 target->entryName, target->nfs.mode,
384 target->nfs.mode = 0;
385 target->nfs.rdev = 0;
387 ncp_unlock_server(server);
392 target->nfs.mode = 0;
393 target->nfs.rdev = 0;
399 * Returns information for a (one-component) name relative to
400 * the specified directory.
402 int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path,
403 struct nw_info_struct *target)
405 __u8 volnum = NCP_FINFO(dir)->volNumber;
406 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
409 if (target == NULL) {
410 printk(KERN_ERR "ncp_obtain_info: invalid call\n");
413 ncp_init_request(server);
414 ncp_add_byte(server, 6); /* subfunction */
415 ncp_add_byte(server, server->name_space[volnum]);
416 ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */
417 ncp_add_word(server, htons(0x0680)); /* get all */
418 ncp_add_dword(server, RIM_ALL);
419 ncp_add_handle_path(server, volnum, dirent, 1, path);
421 if ((result = ncp_request(server, 87)) != 0)
423 ncp_extract_file_info(ncp_reply_data(server, 0), target);
424 ncp_unlock_server(server);
426 result = ncp_obtain_nfs_info(server, target);
430 ncp_unlock_server(server);
434 #ifdef CONFIG_NCPFS_NFS_NS
436 ncp_obtain_DOS_dir_base(struct ncp_server *server,
437 __u8 volnum, __u32 dirent,
438 char *path, /* At most 1 component */
443 ncp_init_request(server);
444 ncp_add_byte(server, 6); /* subfunction */
445 ncp_add_byte(server, server->name_space[volnum]);
446 ncp_add_byte(server, server->name_space[volnum]);
447 ncp_add_word(server, htons(0x0680)); /* get all */
448 ncp_add_dword(server, RIM_DIRECTORY);
449 ncp_add_handle_path(server, volnum, dirent, 1, path);
451 if ((result = ncp_request(server, 87)) == 0)
453 if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
455 ncp_unlock_server(server);
458 #endif /* CONFIG_NCPFS_NFS_NS */
461 ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
463 #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
468 ncp_init_request(server);
469 ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */
470 ncp_add_word(server, 0);
471 ncp_add_byte(server, volume);
473 if ((result = ncp_request(server, 87)) != 0) {
474 ncp_unlock_server(server);
475 return NW_NS_DOS; /* not result ?? */
479 no_namespaces = le16_to_cpu(ncp_reply_word(server, 0));
480 namespace = ncp_reply_data(server, 2);
482 while (no_namespaces > 0) {
483 DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume);
485 #ifdef CONFIG_NCPFS_NFS_NS
486 if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS))
491 #endif /* CONFIG_NCPFS_NFS_NS */
492 #ifdef CONFIG_NCPFS_OS2_NS
493 if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2))
497 #endif /* CONFIG_NCPFS_OS2_NS */
501 ncp_unlock_server(server);
503 #else /* neither OS2 nor NFS - only DOS */
505 #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
509 ncp_ObtainSpecificDirBase(struct ncp_server *server,
510 __u8 nsSrc, __u8 nsDst, __u8 vol_num, __u32 dir_base,
511 char *path, /* At most 1 component */
512 __u32 *dirEntNum, __u32 *DosDirNum)
516 ncp_init_request(server);
517 ncp_add_byte(server, 6); /* subfunction */
518 ncp_add_byte(server, nsSrc);
519 ncp_add_byte(server, nsDst);
520 ncp_add_word(server, htons(0x0680)); /* get all */
521 ncp_add_dword(server, RIM_ALL);
522 ncp_add_handle_path(server, vol_num, dir_base, 1, path);
524 if ((result = ncp_request(server, 87)) != 0)
526 ncp_unlock_server(server);
531 *dirEntNum = ncp_reply_dword(server, 0x30);
533 *DosDirNum = ncp_reply_dword(server, 0x34);
534 ncp_unlock_server(server);
539 ncp_mount_subdir(struct ncp_server *server,
540 __u8 volNumber, __u8 srcNS, __u32 dirEntNum,
541 __u32* volume, __u32* newDirEnt, __u32* newDosEnt)
546 dstNS = ncp_get_known_namespace(server, volNumber);
547 if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber,
548 dirEntNum, NULL, newDirEnt, newDosEnt)) != 0)
552 server->name_space[volNumber] = dstNS;
554 server->m.mounted_vol[1] = 0;
555 server->m.mounted_vol[0] = 'X';
560 ncp_get_volume_root(struct ncp_server *server, const char *volname,
561 __u32* volume, __u32* dirent, __u32* dosdirent)
566 DPRINTK("ncp_get_volume_root: looking up vol %s\n", volname);
568 ncp_init_request(server);
569 ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */
570 ncp_add_byte(server, 0); /* DOS namespace */
571 ncp_add_byte(server, 0); /* reserved */
572 ncp_add_byte(server, 0); /* reserved */
573 ncp_add_byte(server, 0); /* reserved */
575 ncp_add_byte(server, 0); /* faked volume number */
576 ncp_add_dword(server, 0); /* faked dir_base */
577 ncp_add_byte(server, 0xff); /* Don't have a dir_base */
578 ncp_add_byte(server, 1); /* 1 path component */
579 ncp_add_pstring(server, volname);
581 if ((result = ncp_request(server, 87)) != 0) {
582 ncp_unlock_server(server);
585 *dirent = *dosdirent = ncp_reply_dword(server, 4);
586 volnum = ncp_reply_byte(server, 8);
587 ncp_unlock_server(server);
590 server->name_space[volnum] = ncp_get_known_namespace(server, volnum);
592 DPRINTK("lookup_vol: namespace[%d] = %d\n",
593 volnum, server->name_space[volnum]);
599 ncp_lookup_volume(struct ncp_server *server, const char *volname,
600 struct nw_info_struct *target)
604 memset(target, 0, sizeof(*target));
605 result = ncp_get_volume_root(server, volname,
606 &target->volNumber, &target->dirEntNum, &target->DosDirNum);
610 target->nameLen = strlen(volname);
611 memcpy(target->entryName, volname, target->nameLen+1);
612 target->attributes = aDIR;
613 /* set dates to Jan 1, 1986 00:00 */
614 target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
615 target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
616 target->nfs.mode = 0;
620 int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
624 const struct nw_modify_dos_info *info)
626 __u8 volnum = NCP_FINFO(dir)->volNumber;
627 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
630 ncp_init_request(server);
631 ncp_add_byte(server, 7); /* subfunction */
632 ncp_add_byte(server, server->name_space[volnum]);
633 ncp_add_byte(server, 0); /* reserved */
634 ncp_add_word(server, htons(0x0680)); /* search attribs: all */
636 ncp_add_dword(server, info_mask);
637 ncp_add_mem(server, info, sizeof(*info));
638 ncp_add_handle_path(server, volnum, dirent, 1, path);
640 result = ncp_request(server, 87);
641 ncp_unlock_server(server);
645 int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
648 const struct nw_modify_dos_info *info)
650 return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
654 #ifdef CONFIG_NCPFS_NFS_NS
655 int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __u32 dirent,
656 __u32 mode, __u32 rdev)
661 if (server->name_space[volnum] == NW_NS_NFS) {
662 ncp_init_request(server);
663 ncp_add_byte(server, 25); /* subfunction */
664 ncp_add_byte(server, server->name_space[volnum]);
665 ncp_add_byte(server, NW_NS_NFS);
666 ncp_add_byte(server, volnum);
667 ncp_add_dword(server, dirent);
668 /* we must always operate on both nlinks and rdev, otherwise
670 ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
671 ncp_add_dword_lh(server, mode);
672 ncp_add_dword_lh(server, 1); /* nlinks */
673 ncp_add_dword_lh(server, rdev);
674 result = ncp_request(server, 87);
675 ncp_unlock_server(server);
683 ncp_DeleteNSEntry(struct ncp_server *server,
684 __u8 have_dir_base, __u8 volnum, __u32 dirent,
685 char* name, __u8 ns, int attr)
689 ncp_init_request(server);
690 ncp_add_byte(server, 8); /* subfunction */
691 ncp_add_byte(server, ns);
692 ncp_add_byte(server, 0); /* reserved */
693 ncp_add_word(server, attr); /* search attribs: all */
694 ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
696 result = ncp_request(server, 87);
697 ncp_unlock_server(server);
702 ncp_del_file_or_subdir2(struct ncp_server *server,
703 struct dentry *dentry)
705 struct inode *inode = dentry->d_inode;
710 #ifdef CONFIG_NCPFS_DEBUGDENTRY
711 PRINTK("ncpfs: ncpdel2: dentry->d_inode == NULL\n");
713 return 0xFF; /* Any error */
715 volnum = NCP_FINFO(inode)->volNumber;
716 dirent = NCP_FINFO(inode)->DosDirNum;
717 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
721 ncp_del_file_or_subdir(struct ncp_server *server,
722 struct inode *dir, char *name)
724 __u8 volnum = NCP_FINFO(dir)->volNumber;
725 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
727 #ifdef CONFIG_NCPFS_NFS_NS
728 if (server->name_space[volnum]==NW_NS_NFS)
732 result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent);
733 if (result) return result;
734 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, htons(0x0680));
737 #endif /* CONFIG_NCPFS_NFS_NS */
738 return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], htons(0x0680));
741 static inline void ConvertToNWfromDWORD(__u32 sfd, __u8 ret[6])
743 __u16 *dest = (__u16 *) ret;
744 memcpy(ret + 2, &sfd, 4);
745 dest[0] = cpu_to_le16((le16_to_cpu(dest[1]) + le16_to_cpu(1)));
749 /* If both dir and name are NULL, then in target there's already a
750 looked-up entry that wants to be opened. */
751 int ncp_open_create_file_or_subdir(struct ncp_server *server,
752 struct inode *dir, char *name,
753 int open_create_mode,
754 __u32 create_attributes,
755 int desired_acc_rights,
756 struct ncp_entry_info *target)
758 __u16 search_attribs = ntohs(0x0600);
763 volnum = NCP_FINFO(dir)->volNumber;
764 dirent = NCP_FINFO(dir)->dirEntNum;
766 if ((create_attributes & aDIR) != 0) {
767 search_attribs |= ntohs(0x0080);
769 ncp_init_request(server);
770 ncp_add_byte(server, 1); /* subfunction */
771 ncp_add_byte(server, server->name_space[volnum]);
772 ncp_add_byte(server, open_create_mode);
773 ncp_add_word(server, search_attribs);
774 ncp_add_dword(server, RIM_ALL);
775 ncp_add_dword(server, create_attributes);
776 /* The desired acc rights seem to be the inherited rights mask
778 ncp_add_word(server, desired_acc_rights);
779 ncp_add_handle_path(server, volnum, dirent, 1, name);
781 if ((result = ncp_request(server, 87)) != 0)
783 if (!(create_attributes & aDIR))
786 /* in target there's a new finfo to fill */
787 ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
788 target->volume = target->i.volNumber;
789 ConvertToNWfromDWORD(ncp_reply_dword(server, 0), target->file_handle);
791 ncp_unlock_server(server);
793 (void)ncp_obtain_nfs_info(server, &(target->i));
797 ncp_unlock_server(server);
802 ncp_initialize_search(struct ncp_server *server, struct inode *dir,
803 struct nw_search_sequence *target)
805 __u8 volnum = NCP_FINFO(dir)->volNumber;
806 __u32 dirent = NCP_FINFO(dir)->dirEntNum;
809 ncp_init_request(server);
810 ncp_add_byte(server, 2); /* subfunction */
811 ncp_add_byte(server, server->name_space[volnum]);
812 ncp_add_byte(server, 0); /* reserved */
813 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
815 result = ncp_request(server, 87);
818 memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
821 ncp_unlock_server(server);
825 /* Search for everything */
826 int ncp_search_for_file_or_subdir(struct ncp_server *server,
827 struct nw_search_sequence *seq,
828 struct nw_info_struct *target)
832 ncp_init_request(server);
833 ncp_add_byte(server, 3); /* subfunction */
834 ncp_add_byte(server, server->name_space[seq->volNumber]);
835 ncp_add_byte(server, 0); /* data stream (???) */
836 ncp_add_word(server, htons(0x0680)); /* Search attribs */
837 ncp_add_dword(server, RIM_ALL); /* return info mask */
838 ncp_add_mem(server, seq, 9);
839 #ifdef CONFIG_NCPFS_NFS_NS
840 if (server->name_space[seq->volNumber] == NW_NS_NFS) {
841 ncp_add_byte(server, 0); /* 0 byte pattern */
845 ncp_add_byte(server, 2); /* 2 byte pattern */
846 ncp_add_byte(server, 0xff); /* following is a wildcard */
847 ncp_add_byte(server, '*');
850 if ((result = ncp_request(server, 87)) != 0)
852 memcpy(seq, ncp_reply_data(server, 0), sizeof(*seq));
853 ncp_extract_file_info(ncp_reply_data(server, 10), target);
855 ncp_unlock_server(server);
857 result = ncp_obtain_nfs_info(server, target);
861 ncp_unlock_server(server);
865 int ncp_search_for_fileset(struct ncp_server *server,
866 struct nw_search_sequence *seq,
876 ncp_init_request(server);
877 ncp_add_byte(server, 20);
878 ncp_add_byte(server, server->name_space[seq->volNumber]);
879 ncp_add_byte(server, 0); /* datastream */
880 ncp_add_word(server, htons(0x0680));
881 ncp_add_dword(server, RIM_ALL);
882 ncp_add_word(server, 32767); /* max returned items */
883 ncp_add_mem(server, seq, 9);
884 #ifdef CONFIG_NCPFS_NFS_NS
885 if (server->name_space[seq->volNumber] == NW_NS_NFS) {
886 ncp_add_byte(server, 0); /* 0 byte pattern */
890 ncp_add_byte(server, 2); /* 2 byte pattern */
891 ncp_add_byte(server, 0xff); /* following is a wildcard */
892 ncp_add_byte(server, '*');
894 result = ncp_request2(server, 87, buffer, bufsize);
896 ncp_unlock_server(server);
899 if (server->ncp_reply_size < 12) {
900 ncp_unlock_server(server);
903 *rsize = server->ncp_reply_size - 12;
904 ncp_unlock_server(server);
905 buffer = buffer + sizeof(struct ncp_reply_header);
907 *cnt = WVAL_LH(buffer + 10);
908 *more = BVAL(buffer + 9);
909 memcpy(seq, buffer, 9);
914 ncp_RenameNSEntry(struct ncp_server *server,
915 struct inode *old_dir, char *old_name, int old_type,
916 struct inode *new_dir, char *new_name)
918 int result = -EINVAL;
920 if ((old_dir == NULL) || (old_name == NULL) ||
921 (new_dir == NULL) || (new_name == NULL))
924 ncp_init_request(server);
925 ncp_add_byte(server, 4); /* subfunction */
926 ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
927 ncp_add_byte(server, 1); /* rename flag */
928 ncp_add_word(server, old_type); /* search attributes */
930 /* source Handle Path */
931 ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
932 ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
933 ncp_add_byte(server, 1);
934 ncp_add_byte(server, 1); /* 1 source component */
936 /* dest Handle Path */
937 ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
938 ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
939 ncp_add_byte(server, 1);
940 ncp_add_byte(server, 1); /* 1 destination component */
942 /* source path string */
943 ncp_add_pstring(server, old_name);
944 /* dest path string */
945 ncp_add_pstring(server, new_name);
947 result = ncp_request(server, 87);
948 ncp_unlock_server(server);
953 int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
954 struct inode *old_dir, char *old_name,
955 struct inode *new_dir, char *new_name)
958 int old_type = htons(0x0600);
960 /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
961 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
963 if (result == 0xFF) /* File Not Found, try directory */
965 old_type = htons(0x1600);
966 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
969 if (result != 0x92) return result; /* All except NO_FILES_RENAMED */
970 result = ncp_del_file_or_subdir(server, new_dir, new_name);
971 if (result != 0) return -EACCES;
972 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
978 /* We have to transfer to/from user space */
980 ncp_read_kernel(struct ncp_server *server, const char *file_id,
981 __u32 offset, __u16 to_read, char *target, int *bytes_read)
986 ncp_init_request(server);
987 ncp_add_byte(server, 0);
988 ncp_add_mem(server, file_id, 6);
989 ncp_add_dword(server, htonl(offset));
990 ncp_add_word(server, htons(to_read));
992 if ((result = ncp_request(server, 72)) != 0) {
995 *bytes_read = ntohs(ncp_reply_word(server, 0));
996 source = ncp_reply_data(server, 2 + (offset & 1));
998 memcpy(target, source, *bytes_read);
1000 ncp_unlock_server(server);
1004 /* There is a problem... egrep and some other silly tools do:
1005 x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
1006 read(<ncpfs fd>, x, 32768);
1007 Now copying read result by copy_to_user causes pagefault. This pagefault
1008 could not be handled because of server was locked due to read. So we have
1009 to use temporary buffer. So ncp_unlock_server must be done before
1010 copy_to_user (and for write, copy_from_user must be done before
1011 ncp_init_request... same applies for send raw packet ioctl). Because of
1012 file is normally read in bigger chunks, caller provides kmalloced
1013 (vmalloced) chunk of memory with size >= to_read...
1016 ncp_read_bounce(struct ncp_server *server, const char *file_id,
1017 __u32 offset, __u16 to_read, char __user *target, int *bytes_read,
1018 void* bounce, __u32 bufsize)
1022 ncp_init_request(server);
1023 ncp_add_byte(server, 0);
1024 ncp_add_mem(server, file_id, 6);
1025 ncp_add_dword(server, htonl(offset));
1026 ncp_add_word(server, htons(to_read));
1027 result = ncp_request2(server, 72, bounce, bufsize);
1028 ncp_unlock_server(server);
1030 int len = be16_to_cpu(get_unaligned((__u16*)((char*)bounce +
1031 sizeof(struct ncp_reply_header))));
1033 if (len <= to_read) {
1036 source = (char*)bounce +
1037 sizeof(struct ncp_reply_header) + 2 +
1041 if (copy_to_user(target, source, len))
1049 ncp_write_kernel(struct ncp_server *server, const char *file_id,
1050 __u32 offset, __u16 to_write,
1051 const char *source, int *bytes_written)
1055 ncp_init_request(server);
1056 ncp_add_byte(server, 0);
1057 ncp_add_mem(server, file_id, 6);
1058 ncp_add_dword(server, htonl(offset));
1059 ncp_add_word(server, htons(to_write));
1060 ncp_add_mem(server, source, to_write);
1062 if ((result = ncp_request(server, 73)) == 0)
1063 *bytes_written = to_write;
1064 ncp_unlock_server(server);
1068 #ifdef CONFIG_NCPFS_IOCTL_LOCKING
1070 ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
1071 __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
1075 ncp_init_request(server);
1076 ncp_add_byte(server, locktype);
1077 ncp_add_mem(server, file_id, 6);
1078 ncp_add_dword(server, htonl(offset));
1079 ncp_add_dword(server, htonl(length));
1080 ncp_add_word(server, htons(timeout));
1082 if ((result = ncp_request(server, 0x1A)) != 0)
1084 ncp_unlock_server(server);
1087 ncp_unlock_server(server);
1092 ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
1093 __u32 offset, __u32 length)
1097 ncp_init_request(server);
1098 ncp_add_byte(server, 0); /* who knows... lanalyzer says that */
1099 ncp_add_mem(server, file_id, 6);
1100 ncp_add_dword(server, htonl(offset));
1101 ncp_add_dword(server, htonl(length));
1103 if ((result = ncp_request(server, 0x1E)) != 0)
1105 ncp_unlock_server(server);
1108 ncp_unlock_server(server);
1111 #endif /* CONFIG_NCPFS_IOCTL_LOCKING */
1113 #ifdef CONFIG_NCPFS_NLS
1114 /* This are the NLS conversion routines with inspirations and code parts
1115 * from the vfat file system and hints from Petr Vandrovec.
1118 inline unsigned char
1119 ncp__tolower(struct nls_table *t, unsigned char c)
1121 unsigned char nc = t->charset2lower[c];
1126 inline unsigned char
1127 ncp__toupper(struct nls_table *t, unsigned char c)
1129 unsigned char nc = t->charset2upper[c];
1135 ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
1136 const unsigned char *iname, unsigned int ilen, int cc)
1138 struct nls_table *in = server->nls_io;
1139 struct nls_table *out = server->nls_vol;
1140 unsigned char *vname_start;
1141 unsigned char *vname_end;
1142 const unsigned char *iname_end;
1144 iname_end = iname + ilen;
1145 vname_start = vname;
1146 vname_end = vname + *vlen - 1;
1148 while (iname < iname_end) {
1152 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1155 k = utf8_mbtowc(&ec, iname, iname_end - iname);
1160 if (*iname == NCP_ESC) {
1163 if (iname_end - iname < 5)
1167 for (k = 1; k < 5; k++) {
1170 nc = iname[k] - '0';
1172 nc -= 'A' - '0' - 10;
1173 if ((nc < 10) || (nc > 15)) {
1177 ec = (ec << 4) | nc;
1182 if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
1188 /* unitoupper should be here! */
1190 chl = out->uni2char(ec, vname, vname_end - vname);
1194 /* this is wrong... */
1198 for (chi = 0; chi < chl; chi++){
1199 vname[chi] = ncp_toupper(out, vname[chi]);
1206 *vlen = vname - vname_start;
1211 ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
1212 const unsigned char *vname, unsigned int vlen, int cc)
1214 struct nls_table *in = server->nls_vol;
1215 struct nls_table *out = server->nls_io;
1216 const unsigned char *vname_end;
1217 unsigned char *iname_start;
1218 unsigned char *iname_end;
1219 unsigned char *vname_cc;
1227 /* this is wrong! */
1228 vname_cc = kmalloc(vlen, GFP_KERNEL);
1231 for (i = 0; i < vlen; i++)
1232 vname_cc[i] = ncp_tolower(in, vname[i]);
1236 iname_start = iname;
1237 iname_end = iname + *ilen - 1;
1238 vname_end = vname + vlen;
1240 while (vname < vname_end) {
1244 if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
1250 /* unitolower should be here! */
1252 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1255 k = utf8_wctomb(iname, ec, iname_end - iname);
1257 err = -ENAMETOOLONG;
1262 if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
1267 if (iname_end - iname < 5) {
1268 err = -ENAMETOOLONG;
1272 for (k = 4; k > 0; k--) {
1275 v = (ec & 0xF) + '0';
1288 *ilen = iname - iname_start;
1299 ncp__io2vol(unsigned char *vname, unsigned int *vlen,
1300 const unsigned char *iname, unsigned int ilen, int cc)
1305 return -ENAMETOOLONG;
1308 for (i = 0; i < ilen; i++) {
1309 *vname = toupper(*iname);
1314 memmove(vname, iname, ilen);
1324 ncp__vol2io(unsigned char *iname, unsigned int *ilen,
1325 const unsigned char *vname, unsigned int vlen, int cc)
1330 return -ENAMETOOLONG;
1333 for (i = 0; i < vlen; i++) {
1334 *iname = tolower(*vname);
1339 memmove(iname, vname, vlen);
1351 ncp_strnicmp(struct nls_table *t, const unsigned char *s1,
1352 const unsigned char *s2, int n)
1357 if (ncp_tolower(t, s1[i]) != ncp_tolower(t, s2[i]))