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
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16 static inline void assert_server_locked(struct ncp_server *server)
18 if (server->lock == 0) {
19 ncp_dbg(1, "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, __le16 x)
33 assert_server_locked(server);
34 put_unaligned(x, (__le16 *) (&(server->packet[server->current_size])));
35 server->current_size += 2;
39 static void ncp_add_be16(struct ncp_server *server, __u16 x)
41 assert_server_locked(server);
42 put_unaligned(cpu_to_be16(x), (__be16 *) (&(server->packet[server->current_size])));
43 server->current_size += 2;
46 static void ncp_add_dword(struct ncp_server *server, __le32 x)
48 assert_server_locked(server);
49 put_unaligned(x, (__le32 *) (&(server->packet[server->current_size])));
50 server->current_size += 4;
54 static void ncp_add_be32(struct ncp_server *server, __u32 x)
56 assert_server_locked(server);
57 put_unaligned(cpu_to_be32(x), (__be32 *)(&(server->packet[server->current_size])));
58 server->current_size += 4;
61 static inline void ncp_add_dword_lh(struct ncp_server *server, __u32 x) {
62 ncp_add_dword(server, cpu_to_le32(x));
65 static void ncp_add_mem(struct ncp_server *server, const void *source, int size)
67 assert_server_locked(server);
68 memcpy(&(server->packet[server->current_size]), source, size);
69 server->current_size += size;
73 static void ncp_add_pstring(struct ncp_server *server, const char *s)
76 assert_server_locked(server);
78 ncp_dbg(1, "string too long: %s\n", s);
81 ncp_add_byte(server, len);
82 ncp_add_mem(server, s, len);
86 static inline void ncp_init_request(struct ncp_server *server)
88 ncp_lock_server(server);
90 server->current_size = sizeof(struct ncp_request_header);
91 server->has_subfunction = 0;
94 static inline void ncp_init_request_s(struct ncp_server *server, int subfunction)
96 ncp_lock_server(server);
98 server->current_size = sizeof(struct ncp_request_header) + 2;
99 ncp_add_byte(server, subfunction);
101 server->has_subfunction = 1;
105 ncp_reply_data(struct ncp_server *server, int offset)
107 return &(server->packet[sizeof(struct ncp_reply_header) + offset]);
110 static inline u8 BVAL(const void *data)
112 return *(const u8 *)data;
115 static u8 ncp_reply_byte(struct ncp_server *server, int offset)
117 return *(const u8 *)ncp_reply_data(server, offset);
120 static inline u16 WVAL_LH(const void *data)
122 return get_unaligned_le16(data);
126 ncp_reply_le16(struct ncp_server *server, int offset)
128 return get_unaligned_le16(ncp_reply_data(server, offset));
132 ncp_reply_be16(struct ncp_server *server, int offset)
134 return get_unaligned_be16(ncp_reply_data(server, offset));
137 static inline u32 DVAL_LH(const void *data)
139 return get_unaligned_le32(data);
143 ncp_reply_dword(struct ncp_server *server, int offset)
145 return get_unaligned((__le32 *)ncp_reply_data(server, offset));
148 static inline __u32 ncp_reply_dword_lh(struct ncp_server* server, int offset) {
149 return le32_to_cpu(ncp_reply_dword(server, offset));
153 ncp_negotiate_buffersize(struct ncp_server *server, int size, int *target)
157 ncp_init_request(server);
158 ncp_add_be16(server, size);
160 if ((result = ncp_request(server, 33)) != 0) {
161 ncp_unlock_server(server);
164 *target = min_t(unsigned int, ncp_reply_be16(server, 0), size);
166 ncp_unlock_server(server);
173 * bit 1 packet signing
176 ncp_negotiate_size_and_options(struct ncp_server *server,
177 int size, int options, int *ret_size, int *ret_options) {
180 /* there is minimum */
181 if (size < NCP_BLOCK_SIZE) size = NCP_BLOCK_SIZE;
183 ncp_init_request(server);
184 ncp_add_be16(server, size);
185 ncp_add_byte(server, options);
187 if ((result = ncp_request(server, 0x61)) != 0)
189 ncp_unlock_server(server);
193 /* NCP over UDP returns 0 (!!!) */
194 result = ncp_reply_be16(server, 0);
195 if (result >= NCP_BLOCK_SIZE)
196 size = min(result, size);
198 *ret_options = ncp_reply_byte(server, 4);
200 ncp_unlock_server(server);
204 int ncp_get_volume_info_with_number(struct ncp_server* server,
205 int n, struct ncp_volume_info* target) {
209 ncp_init_request_s(server, 44);
210 ncp_add_byte(server, n);
212 if ((result = ncp_request(server, 22)) != 0) {
215 target->total_blocks = ncp_reply_dword_lh(server, 0);
216 target->free_blocks = ncp_reply_dword_lh(server, 4);
217 target->purgeable_blocks = ncp_reply_dword_lh(server, 8);
218 target->not_yet_purgeable_blocks = ncp_reply_dword_lh(server, 12);
219 target->total_dir_entries = ncp_reply_dword_lh(server, 16);
220 target->available_dir_entries = ncp_reply_dword_lh(server, 20);
221 target->sectors_per_block = ncp_reply_byte(server, 28);
223 memset(&(target->volume_name), 0, sizeof(target->volume_name));
226 len = ncp_reply_byte(server, 29);
227 if (len > NCP_VOLNAME_LEN) {
228 ncp_dbg(1, "volume name too long: %d\n", len);
231 memcpy(&(target->volume_name), ncp_reply_data(server, 30), len);
234 ncp_unlock_server(server);
238 int ncp_get_directory_info(struct ncp_server* server, __u8 n,
239 struct ncp_volume_info* target) {
243 ncp_init_request_s(server, 45);
244 ncp_add_byte(server, n);
246 if ((result = ncp_request(server, 22)) != 0) {
249 target->total_blocks = ncp_reply_dword_lh(server, 0);
250 target->free_blocks = ncp_reply_dword_lh(server, 4);
251 target->purgeable_blocks = 0;
252 target->not_yet_purgeable_blocks = 0;
253 target->total_dir_entries = ncp_reply_dword_lh(server, 8);
254 target->available_dir_entries = ncp_reply_dword_lh(server, 12);
255 target->sectors_per_block = ncp_reply_byte(server, 20);
257 memset(&(target->volume_name), 0, sizeof(target->volume_name));
260 len = ncp_reply_byte(server, 21);
261 if (len > NCP_VOLNAME_LEN) {
262 ncp_dbg(1, "volume name too long: %d\n", len);
265 memcpy(&(target->volume_name), ncp_reply_data(server, 22), len);
268 ncp_unlock_server(server);
273 ncp_close_file(struct ncp_server *server, const char *file_id)
277 ncp_init_request(server);
278 ncp_add_byte(server, 0);
279 ncp_add_mem(server, file_id, 6);
281 result = ncp_request(server, 66);
282 ncp_unlock_server(server);
287 ncp_make_closed(struct inode *inode)
292 mutex_lock(&NCP_FINFO(inode)->open_mutex);
293 if (atomic_read(&NCP_FINFO(inode)->opened) == 1) {
294 atomic_set(&NCP_FINFO(inode)->opened, 0);
295 err = ncp_close_file(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle);
298 ncp_vdbg("volnum=%d, dirent=%u, error=%d\n",
299 NCP_FINFO(inode)->volNumber,
300 NCP_FINFO(inode)->dirEntNum, err);
302 mutex_unlock(&NCP_FINFO(inode)->open_mutex);
306 static void ncp_add_handle_path(struct ncp_server *server, __u8 vol_num,
307 __le32 dir_base, int have_dir_base,
310 ncp_add_byte(server, vol_num);
311 ncp_add_dword(server, dir_base);
312 if (have_dir_base != 0) {
313 ncp_add_byte(server, 1); /* dir_base */
315 ncp_add_byte(server, 0xff); /* no handle */
318 ncp_add_byte(server, 1); /* 1 component */
319 ncp_add_pstring(server, path);
321 ncp_add_byte(server, 0);
325 int ncp_dirhandle_alloc(struct ncp_server* server, __u8 volnum, __le32 dirent,
329 ncp_init_request(server);
330 ncp_add_byte(server, 12); /* subfunction */
331 ncp_add_byte(server, NW_NS_DOS);
332 ncp_add_byte(server, 0);
333 ncp_add_word(server, 0);
334 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
335 if ((result = ncp_request(server, 87)) == 0) {
336 *dirhandle = ncp_reply_byte(server, 0);
338 ncp_unlock_server(server);
342 int ncp_dirhandle_free(struct ncp_server* server, __u8 dirhandle) {
345 ncp_init_request_s(server, 20);
346 ncp_add_byte(server, dirhandle);
347 result = ncp_request(server, 22);
348 ncp_unlock_server(server);
352 void ncp_extract_file_info(const void *structure, struct nw_info_struct *target)
354 const __u8 *name_len;
355 const int info_struct_size = offsetof(struct nw_info_struct, nameLen);
357 memcpy(target, structure, info_struct_size);
358 name_len = structure + info_struct_size;
359 target->nameLen = *name_len;
360 memcpy(target->entryName, name_len + 1, *name_len);
361 target->entryName[*name_len] = '\0';
362 target->volNumber = le32_to_cpu(target->volNumber);
366 #ifdef CONFIG_NCPFS_NFS_NS
367 static inline void ncp_extract_nfs_info(const unsigned char *structure,
368 struct nw_nfs_info *target)
370 target->mode = DVAL_LH(structure);
371 target->rdev = DVAL_LH(structure + 8);
375 int ncp_obtain_nfs_info(struct ncp_server *server,
376 struct nw_info_struct *target)
380 #ifdef CONFIG_NCPFS_NFS_NS
381 __u32 volnum = target->volNumber;
383 if (ncp_is_nfs_extras(server, volnum)) {
384 ncp_init_request(server);
385 ncp_add_byte(server, 19); /* subfunction */
386 ncp_add_byte(server, server->name_space[volnum]);
387 ncp_add_byte(server, NW_NS_NFS);
388 ncp_add_byte(server, 0);
389 ncp_add_byte(server, volnum);
390 ncp_add_dword(server, target->dirEntNum);
391 /* We must retrieve both nlinks and rdev, otherwise some server versions
392 report zeroes instead of valid data */
393 ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
395 if ((result = ncp_request(server, 87)) == 0) {
396 ncp_extract_nfs_info(ncp_reply_data(server, 0), &target->nfs);
397 ncp_dbg(1, "(%s) mode=0%o, rdev=0x%x\n",
398 target->entryName, target->nfs.mode,
401 target->nfs.mode = 0;
402 target->nfs.rdev = 0;
404 ncp_unlock_server(server);
409 target->nfs.mode = 0;
410 target->nfs.rdev = 0;
416 * Returns information for a (one-component) name relative to
417 * the specified directory.
419 int ncp_obtain_info(struct ncp_server *server, struct inode *dir, const char *path,
420 struct nw_info_struct *target)
422 __u8 volnum = NCP_FINFO(dir)->volNumber;
423 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
426 if (target == NULL) {
427 pr_err("%s: invalid call\n", __func__);
430 ncp_init_request(server);
431 ncp_add_byte(server, 6); /* subfunction */
432 ncp_add_byte(server, server->name_space[volnum]);
433 ncp_add_byte(server, server->name_space[volnum]); /* N.B. twice ?? */
434 ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
435 ncp_add_dword(server, RIM_ALL);
436 ncp_add_handle_path(server, volnum, dirent, 1, path);
438 if ((result = ncp_request(server, 87)) != 0)
440 ncp_extract_file_info(ncp_reply_data(server, 0), target);
441 ncp_unlock_server(server);
443 result = ncp_obtain_nfs_info(server, target);
447 ncp_unlock_server(server);
451 #ifdef CONFIG_NCPFS_NFS_NS
453 ncp_obtain_DOS_dir_base(struct ncp_server *server,
454 __u8 ns, __u8 volnum, __le32 dirent,
455 const char *path, /* At most 1 component */
456 __le32 *DOS_dir_base)
460 ncp_init_request(server);
461 ncp_add_byte(server, 6); /* subfunction */
462 ncp_add_byte(server, ns);
463 ncp_add_byte(server, ns);
464 ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
465 ncp_add_dword(server, RIM_DIRECTORY);
466 ncp_add_handle_path(server, volnum, dirent, 1, path);
468 if ((result = ncp_request(server, 87)) == 0)
470 if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
472 ncp_unlock_server(server);
475 #endif /* CONFIG_NCPFS_NFS_NS */
478 ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
480 #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
485 ncp_init_request(server);
486 ncp_add_byte(server, 24); /* Subfunction: Get Name Spaces Loaded */
487 ncp_add_word(server, 0);
488 ncp_add_byte(server, volume);
490 if ((result = ncp_request(server, 87)) != 0) {
491 ncp_unlock_server(server);
492 return NW_NS_DOS; /* not result ?? */
496 no_namespaces = ncp_reply_le16(server, 0);
497 namespace = ncp_reply_data(server, 2);
499 while (no_namespaces > 0) {
500 ncp_dbg(1, "found %d on %d\n", *namespace, volume);
502 #ifdef CONFIG_NCPFS_NFS_NS
503 if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS))
508 #endif /* CONFIG_NCPFS_NFS_NS */
509 #ifdef CONFIG_NCPFS_OS2_NS
510 if ((*namespace == NW_NS_OS2) && !(server->m.flags&NCP_MOUNT_NO_OS2))
514 #endif /* CONFIG_NCPFS_OS2_NS */
518 ncp_unlock_server(server);
520 #else /* neither OS2 nor NFS - only DOS */
522 #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
526 ncp_update_known_namespace(struct ncp_server *server, __u8 volume, int *ret_ns)
528 int ns = ncp_get_known_namespace(server, volume);
533 ncp_dbg(1, "namespace[%d] = %d\n", volume, server->name_space[volume]);
535 if (server->name_space[volume] == ns)
537 server->name_space[volume] = ns;
542 ncp_ObtainSpecificDirBase(struct ncp_server *server,
543 __u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base,
544 const char *path, /* At most 1 component */
545 __le32 *dirEntNum, __le32 *DosDirNum)
549 ncp_init_request(server);
550 ncp_add_byte(server, 6); /* subfunction */
551 ncp_add_byte(server, nsSrc);
552 ncp_add_byte(server, nsDst);
553 ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
554 ncp_add_dword(server, RIM_ALL);
555 ncp_add_handle_path(server, vol_num, dir_base, 1, path);
557 if ((result = ncp_request(server, 87)) != 0)
559 ncp_unlock_server(server);
564 *dirEntNum = ncp_reply_dword(server, 0x30);
566 *DosDirNum = ncp_reply_dword(server, 0x34);
567 ncp_unlock_server(server);
572 ncp_mount_subdir(struct ncp_server *server,
573 __u8 volNumber, __u8 srcNS, __le32 dirEntNum,
574 __u32* volume, __le32* newDirEnt, __le32* newDosEnt)
579 ncp_update_known_namespace(server, volNumber, &dstNS);
580 if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber,
581 dirEntNum, NULL, newDirEnt, newDosEnt)) != 0)
586 server->m.mounted_vol[1] = 0;
587 server->m.mounted_vol[0] = 'X';
592 ncp_get_volume_root(struct ncp_server *server,
593 const char *volname, __u32* volume, __le32* dirent, __le32* dosdirent)
597 ncp_dbg(1, "looking up vol %s\n", volname);
599 ncp_init_request(server);
600 ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */
601 ncp_add_byte(server, 0); /* DOS namespace */
602 ncp_add_byte(server, 0); /* reserved */
603 ncp_add_byte(server, 0); /* reserved */
604 ncp_add_byte(server, 0); /* reserved */
606 ncp_add_byte(server, 0); /* faked volume number */
607 ncp_add_dword(server, 0); /* faked dir_base */
608 ncp_add_byte(server, 0xff); /* Don't have a dir_base */
609 ncp_add_byte(server, 1); /* 1 path component */
610 ncp_add_pstring(server, volname);
612 if ((result = ncp_request(server, 87)) != 0) {
613 ncp_unlock_server(server);
616 *dirent = *dosdirent = ncp_reply_dword(server, 4);
617 *volume = ncp_reply_byte(server, 8);
618 ncp_unlock_server(server);
623 ncp_lookup_volume(struct ncp_server *server,
624 const char *volname, struct nw_info_struct *target)
628 memset(target, 0, sizeof(*target));
629 result = ncp_get_volume_root(server, volname,
630 &target->volNumber, &target->dirEntNum, &target->DosDirNum);
634 ncp_update_known_namespace(server, target->volNumber, NULL);
635 target->nameLen = strlen(volname);
636 memcpy(target->entryName, volname, target->nameLen+1);
637 target->attributes = aDIR;
638 /* set dates to Jan 1, 1986 00:00 */
639 target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
640 target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
641 target->nfs.mode = 0;
645 int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
649 const struct nw_modify_dos_info *info)
651 __u8 volnum = NCP_FINFO(dir)->volNumber;
652 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
655 ncp_init_request(server);
656 ncp_add_byte(server, 7); /* subfunction */
657 ncp_add_byte(server, server->name_space[volnum]);
658 ncp_add_byte(server, 0); /* reserved */
659 ncp_add_word(server, cpu_to_le16(0x8006)); /* search attribs: all */
661 ncp_add_dword(server, info_mask);
662 ncp_add_mem(server, info, sizeof(*info));
663 ncp_add_handle_path(server, volnum, dirent, 1, path);
665 result = ncp_request(server, 87);
666 ncp_unlock_server(server);
670 int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
673 const struct nw_modify_dos_info *info)
675 return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
679 #ifdef CONFIG_NCPFS_NFS_NS
680 int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
681 __u32 mode, __u32 rdev)
686 ncp_init_request(server);
687 if (server->name_space[volnum] == NW_NS_NFS) {
688 ncp_add_byte(server, 25); /* subfunction */
689 ncp_add_byte(server, server->name_space[volnum]);
690 ncp_add_byte(server, NW_NS_NFS);
691 ncp_add_byte(server, volnum);
692 ncp_add_dword(server, dirent);
693 /* we must always operate on both nlinks and rdev, otherwise
695 ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
696 ncp_add_dword_lh(server, mode);
697 ncp_add_dword_lh(server, 1); /* nlinks */
698 ncp_add_dword_lh(server, rdev);
699 result = ncp_request(server, 87);
701 ncp_unlock_server(server);
708 ncp_DeleteNSEntry(struct ncp_server *server,
709 __u8 have_dir_base, __u8 volnum, __le32 dirent,
710 const char* name, __u8 ns, __le16 attr)
714 ncp_init_request(server);
715 ncp_add_byte(server, 8); /* subfunction */
716 ncp_add_byte(server, ns);
717 ncp_add_byte(server, 0); /* reserved */
718 ncp_add_word(server, attr); /* search attribs: all */
719 ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
721 result = ncp_request(server, 87);
722 ncp_unlock_server(server);
727 ncp_del_file_or_subdir2(struct ncp_server *server,
728 struct dentry *dentry)
730 struct inode *inode = d_inode(dentry);
735 return 0xFF; /* Any error */
737 volnum = NCP_FINFO(inode)->volNumber;
738 dirent = NCP_FINFO(inode)->DosDirNum;
739 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006));
743 ncp_del_file_or_subdir(struct ncp_server *server,
744 struct inode *dir, const char *name)
746 __u8 volnum = NCP_FINFO(dir)->volNumber;
747 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
750 name_space = server->name_space[volnum];
751 #ifdef CONFIG_NCPFS_NFS_NS
752 if (name_space == NW_NS_NFS)
756 result=ncp_obtain_DOS_dir_base(server, name_space, volnum, dirent, name, &dirent);
757 if (result) return result;
759 name_space = NW_NS_DOS;
761 #endif /* CONFIG_NCPFS_NFS_NS */
762 return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, name_space, cpu_to_le16(0x8006));
765 static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6])
767 __le16 *dest = (__le16 *) ret;
768 dest[1] = cpu_to_le16(v0);
769 dest[2] = cpu_to_le16(v1);
770 dest[0] = cpu_to_le16(v0 + 1);
774 /* If both dir and name are NULL, then in target there's already a
775 looked-up entry that wants to be opened. */
776 int ncp_open_create_file_or_subdir(struct ncp_server *server,
777 struct inode *dir, const char *name,
778 int open_create_mode,
779 __le32 create_attributes,
780 __le16 desired_acc_rights,
781 struct ncp_entry_info *target)
783 __le16 search_attribs = cpu_to_le16(0x0006);
788 volnum = NCP_FINFO(dir)->volNumber;
789 dirent = NCP_FINFO(dir)->dirEntNum;
791 if ((create_attributes & aDIR) != 0) {
792 search_attribs |= cpu_to_le16(0x8000);
794 ncp_init_request(server);
795 ncp_add_byte(server, 1); /* subfunction */
796 ncp_add_byte(server, server->name_space[volnum]);
797 ncp_add_byte(server, open_create_mode);
798 ncp_add_word(server, search_attribs);
799 ncp_add_dword(server, RIM_ALL);
800 ncp_add_dword(server, create_attributes);
801 /* The desired acc rights seem to be the inherited rights mask
803 ncp_add_word(server, desired_acc_rights);
804 ncp_add_handle_path(server, volnum, dirent, 1, name);
806 if ((result = ncp_request(server, 87)) != 0)
808 if (!(create_attributes & aDIR))
811 /* in target there's a new finfo to fill */
812 ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
813 target->volume = target->i.volNumber;
814 ConvertToNWfromDWORD(ncp_reply_le16(server, 0),
815 ncp_reply_le16(server, 2),
816 target->file_handle);
818 ncp_unlock_server(server);
820 (void)ncp_obtain_nfs_info(server, &(target->i));
824 ncp_unlock_server(server);
829 ncp_initialize_search(struct ncp_server *server, struct inode *dir,
830 struct nw_search_sequence *target)
832 __u8 volnum = NCP_FINFO(dir)->volNumber;
833 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
836 ncp_init_request(server);
837 ncp_add_byte(server, 2); /* subfunction */
838 ncp_add_byte(server, server->name_space[volnum]);
839 ncp_add_byte(server, 0); /* reserved */
840 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
842 result = ncp_request(server, 87);
845 memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
848 ncp_unlock_server(server);
852 int ncp_search_for_fileset(struct ncp_server *server,
853 struct nw_search_sequence *seq,
863 ncp_init_request(server);
864 ncp_add_byte(server, 20);
865 ncp_add_byte(server, server->name_space[seq->volNumber]);
866 ncp_add_byte(server, 0); /* datastream */
867 ncp_add_word(server, cpu_to_le16(0x8006));
868 ncp_add_dword(server, RIM_ALL);
869 ncp_add_word(server, cpu_to_le16(32767)); /* max returned items */
870 ncp_add_mem(server, seq, 9);
871 #ifdef CONFIG_NCPFS_NFS_NS
872 if (server->name_space[seq->volNumber] == NW_NS_NFS) {
873 ncp_add_byte(server, 0); /* 0 byte pattern */
877 ncp_add_byte(server, 2); /* 2 byte pattern */
878 ncp_add_byte(server, 0xff); /* following is a wildcard */
879 ncp_add_byte(server, '*');
881 result = ncp_request2(server, 87, buffer, bufsize);
883 ncp_unlock_server(server);
886 if (server->ncp_reply_size < 12) {
887 ncp_unlock_server(server);
890 *rsize = server->ncp_reply_size - 12;
891 ncp_unlock_server(server);
892 buffer = buffer + sizeof(struct ncp_reply_header);
894 *cnt = WVAL_LH(buffer + 10);
895 *more = BVAL(buffer + 9);
896 memcpy(seq, buffer, 9);
901 ncp_RenameNSEntry(struct ncp_server *server,
902 struct inode *old_dir, const char *old_name, __le16 old_type,
903 struct inode *new_dir, const char *new_name)
905 int result = -EINVAL;
907 if ((old_dir == NULL) || (old_name == NULL) ||
908 (new_dir == NULL) || (new_name == NULL))
911 ncp_init_request(server);
912 ncp_add_byte(server, 4); /* subfunction */
913 ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
914 ncp_add_byte(server, 1); /* rename flag */
915 ncp_add_word(server, old_type); /* search attributes */
917 /* source Handle Path */
918 ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
919 ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
920 ncp_add_byte(server, 1);
921 ncp_add_byte(server, 1); /* 1 source component */
923 /* dest Handle Path */
924 ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
925 ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
926 ncp_add_byte(server, 1);
927 ncp_add_byte(server, 1); /* 1 destination component */
929 /* source path string */
930 ncp_add_pstring(server, old_name);
931 /* dest path string */
932 ncp_add_pstring(server, new_name);
934 result = ncp_request(server, 87);
935 ncp_unlock_server(server);
940 int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
941 struct inode *old_dir, const char *old_name,
942 struct inode *new_dir, const char *new_name)
945 __le16 old_type = cpu_to_le16(0x06);
947 /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
948 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
950 if (result == 0xFF) /* File Not Found, try directory */
952 old_type = cpu_to_le16(0x16);
953 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
956 if (result != 0x92) return result; /* All except NO_FILES_RENAMED */
957 result = ncp_del_file_or_subdir(server, new_dir, new_name);
958 if (result != 0) return -EACCES;
959 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
965 /* We have to transfer to/from user space */
967 ncp_read_kernel(struct ncp_server *server, const char *file_id,
968 __u32 offset, __u16 to_read, char *target, int *bytes_read)
973 ncp_init_request(server);
974 ncp_add_byte(server, 0);
975 ncp_add_mem(server, file_id, 6);
976 ncp_add_be32(server, offset);
977 ncp_add_be16(server, to_read);
979 if ((result = ncp_request(server, 72)) != 0) {
982 *bytes_read = ncp_reply_be16(server, 0);
983 if (*bytes_read > to_read) {
987 source = ncp_reply_data(server, 2 + (offset & 1));
989 memcpy(target, source, *bytes_read);
991 ncp_unlock_server(server);
995 /* There is a problem... egrep and some other silly tools do:
996 x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
997 read(<ncpfs fd>, x, 32768);
998 Now copying read result by copy_to_user causes pagefault. This pagefault
999 could not be handled because of server was locked due to read. So we have
1000 to use temporary buffer. So ncp_unlock_server must be done before
1001 copy_to_user (and for write, copy_from_user must be done before
1002 ncp_init_request... same applies for send raw packet ioctl). Because of
1003 file is normally read in bigger chunks, caller provides kmalloced
1004 (vmalloced) chunk of memory with size >= to_read...
1007 ncp_read_bounce(struct ncp_server *server, const char *file_id,
1008 __u32 offset, __u16 to_read, struct iov_iter *to,
1009 int *bytes_read, void *bounce, __u32 bufsize)
1013 ncp_init_request(server);
1014 ncp_add_byte(server, 0);
1015 ncp_add_mem(server, file_id, 6);
1016 ncp_add_be32(server, offset);
1017 ncp_add_be16(server, to_read);
1018 result = ncp_request2(server, 72, bounce, bufsize);
1019 ncp_unlock_server(server);
1021 int len = get_unaligned_be16((char *)bounce +
1022 sizeof(struct ncp_reply_header));
1024 if (len <= to_read) {
1027 source = (char*)bounce +
1028 sizeof(struct ncp_reply_header) + 2 +
1032 if (copy_to_iter(source, len, to) != len)
1040 ncp_write_kernel(struct ncp_server *server, const char *file_id,
1041 __u32 offset, __u16 to_write,
1042 const char *source, int *bytes_written)
1046 ncp_init_request(server);
1047 ncp_add_byte(server, 0);
1048 ncp_add_mem(server, file_id, 6);
1049 ncp_add_be32(server, offset);
1050 ncp_add_be16(server, to_write);
1051 ncp_add_mem(server, source, to_write);
1053 if ((result = ncp_request(server, 73)) == 0)
1054 *bytes_written = to_write;
1055 ncp_unlock_server(server);
1059 #ifdef CONFIG_NCPFS_IOCTL_LOCKING
1061 ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
1062 __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
1066 ncp_init_request(server);
1067 ncp_add_byte(server, locktype);
1068 ncp_add_mem(server, file_id, 6);
1069 ncp_add_be32(server, offset);
1070 ncp_add_be32(server, length);
1071 ncp_add_be16(server, timeout);
1073 if ((result = ncp_request(server, 0x1A)) != 0)
1075 ncp_unlock_server(server);
1078 ncp_unlock_server(server);
1083 ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
1084 __u32 offset, __u32 length)
1088 ncp_init_request(server);
1089 ncp_add_byte(server, 0); /* who knows... lanalyzer says that */
1090 ncp_add_mem(server, file_id, 6);
1091 ncp_add_be32(server, offset);
1092 ncp_add_be32(server, length);
1094 if ((result = ncp_request(server, 0x1E)) != 0)
1096 ncp_unlock_server(server);
1099 ncp_unlock_server(server);
1102 #endif /* CONFIG_NCPFS_IOCTL_LOCKING */
1104 #ifdef CONFIG_NCPFS_NLS
1105 /* This are the NLS conversion routines with inspirations and code parts
1106 * from the vfat file system and hints from Petr Vandrovec.
1110 ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
1111 const unsigned char *iname, unsigned int ilen, int cc)
1113 struct nls_table *in = server->nls_io;
1114 struct nls_table *out = server->nls_vol;
1115 unsigned char *vname_start;
1116 unsigned char *vname_end;
1117 const unsigned char *iname_end;
1119 iname_end = iname + ilen;
1120 vname_start = vname;
1121 vname_end = vname + *vlen - 1;
1123 while (iname < iname_end) {
1127 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1131 k = utf8_to_utf32(iname, iname_end - iname, &u);
1132 if (k < 0 || u > MAX_WCHAR_T)
1137 if (*iname == NCP_ESC) {
1140 if (iname_end - iname < 5)
1144 for (k = 1; k < 5; k++) {
1147 nc = iname[k] - '0';
1149 nc -= 'A' - '0' - 10;
1150 if ((nc < 10) || (nc > 15)) {
1154 ec = (ec << 4) | nc;
1159 if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
1165 /* unitoupper should be here! */
1167 chl = out->uni2char(ec, vname, vname_end - vname);
1171 /* this is wrong... */
1175 for (chi = 0; chi < chl; chi++){
1176 vname[chi] = ncp_toupper(out, vname[chi]);
1183 *vlen = vname - vname_start;
1188 ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
1189 const unsigned char *vname, unsigned int vlen, int cc)
1191 struct nls_table *in = server->nls_vol;
1192 struct nls_table *out = server->nls_io;
1193 const unsigned char *vname_end;
1194 unsigned char *iname_start;
1195 unsigned char *iname_end;
1196 unsigned char *vname_cc;
1204 /* this is wrong! */
1205 vname_cc = kmalloc(vlen, GFP_KERNEL);
1208 for (i = 0; i < vlen; i++)
1209 vname_cc[i] = ncp_tolower(in, vname[i]);
1213 iname_start = iname;
1214 iname_end = iname + *ilen - 1;
1215 vname_end = vname + vlen;
1217 while (vname < vname_end) {
1221 if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
1227 /* unitolower should be here! */
1229 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1232 k = utf32_to_utf8(ec, iname, iname_end - iname);
1234 err = -ENAMETOOLONG;
1239 if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
1244 if (iname_end - iname < 5) {
1245 err = -ENAMETOOLONG;
1249 for (k = 4; k > 0; k--) {
1252 v = (ec & 0xF) + '0';
1265 *ilen = iname - iname_start;
1276 ncp__io2vol(unsigned char *vname, unsigned int *vlen,
1277 const unsigned char *iname, unsigned int ilen, int cc)
1282 return -ENAMETOOLONG;
1285 for (i = 0; i < ilen; i++) {
1286 *vname = toupper(*iname);
1291 memmove(vname, iname, ilen);
1301 ncp__vol2io(unsigned char *iname, unsigned int *ilen,
1302 const unsigned char *vname, unsigned int vlen, int cc)
1307 return -ENAMETOOLONG;
1310 for (i = 0; i < vlen; i++) {
1311 *iname = tolower(*vname);
1316 memmove(iname, vname, vlen);