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
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, __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 DPRINTK("ncpfs: 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(void *data)
115 static u8 ncp_reply_byte(struct ncp_server *server, int offset)
117 return *(u8 *)ncp_reply_data(server, offset);
120 static inline u16 WVAL_LH(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(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 DPRINTK("ncpfs: 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 DPRINTK("ncpfs: 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 PPRINTK("ncp_make_closed: 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(void *structure, struct nw_info_struct *target)
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(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);
398 "ncp_obtain_nfs_info: (%s) mode=0%o, rdev=0x%x\n",
399 target->entryName, target->nfs.mode,
402 target->nfs.mode = 0;
403 target->nfs.rdev = 0;
405 ncp_unlock_server(server);
410 target->nfs.mode = 0;
411 target->nfs.rdev = 0;
417 * Returns information for a (one-component) name relative to
418 * the specified directory.
420 int ncp_obtain_info(struct ncp_server *server, struct inode *dir, char *path,
421 struct nw_info_struct *target)
423 __u8 volnum = NCP_FINFO(dir)->volNumber;
424 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
427 if (target == NULL) {
428 printk(KERN_ERR "ncp_obtain_info: invalid call\n");
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);
439 if ((result = ncp_request(server, 87)) != 0)
441 ncp_extract_file_info(ncp_reply_data(server, 0), target);
442 ncp_unlock_server(server);
444 result = ncp_obtain_nfs_info(server, target);
448 ncp_unlock_server(server);
452 #ifdef CONFIG_NCPFS_NFS_NS
454 ncp_obtain_DOS_dir_base(struct ncp_server *server,
455 __u8 volnum, __le32 dirent,
456 char *path, /* At most 1 component */
457 __le32 *DOS_dir_base)
461 ncp_init_request(server);
462 ncp_add_byte(server, 6); /* subfunction */
463 ncp_add_byte(server, server->name_space[volnum]);
464 ncp_add_byte(server, server->name_space[volnum]);
465 ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
466 ncp_add_dword(server, RIM_DIRECTORY);
467 ncp_add_handle_path(server, volnum, dirent, 1, path);
469 if ((result = ncp_request(server, 87)) == 0)
471 if (DOS_dir_base) *DOS_dir_base=ncp_reply_dword(server, 0x34);
473 ncp_unlock_server(server);
476 #endif /* CONFIG_NCPFS_NFS_NS */
479 ncp_get_known_namespace(struct ncp_server *server, __u8 volume)
481 #if defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS)
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);
491 if ((result = ncp_request(server, 87)) != 0) {
492 ncp_unlock_server(server);
493 return NW_NS_DOS; /* not result ?? */
497 no_namespaces = ncp_reply_le16(server, 0);
498 namespace = ncp_reply_data(server, 2);
500 while (no_namespaces > 0) {
501 DPRINTK("get_namespaces: found %d on %d\n", *namespace, volume);
503 #ifdef CONFIG_NCPFS_NFS_NS
504 if ((*namespace == NW_NS_NFS) && !(server->m.flags&NCP_MOUNT_NO_NFS))
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))
515 #endif /* CONFIG_NCPFS_OS2_NS */
519 ncp_unlock_server(server);
521 #else /* neither OS2 nor NFS - only DOS */
523 #endif /* defined(CONFIG_NCPFS_OS2_NS) || defined(CONFIG_NCPFS_NFS_NS) */
527 ncp_ObtainSpecificDirBase(struct ncp_server *server,
528 __u8 nsSrc, __u8 nsDst, __u8 vol_num, __le32 dir_base,
529 char *path, /* At most 1 component */
530 __le32 *dirEntNum, __le32 *DosDirNum)
534 ncp_init_request(server);
535 ncp_add_byte(server, 6); /* subfunction */
536 ncp_add_byte(server, nsSrc);
537 ncp_add_byte(server, nsDst);
538 ncp_add_word(server, cpu_to_le16(0x8006)); /* get all */
539 ncp_add_dword(server, RIM_ALL);
540 ncp_add_handle_path(server, vol_num, dir_base, 1, path);
542 if ((result = ncp_request(server, 87)) != 0)
544 ncp_unlock_server(server);
549 *dirEntNum = ncp_reply_dword(server, 0x30);
551 *DosDirNum = ncp_reply_dword(server, 0x34);
552 ncp_unlock_server(server);
557 ncp_mount_subdir(struct ncp_server *server,
558 __u8 volNumber, __u8 srcNS, __le32 dirEntNum,
559 __u32* volume, __le32* newDirEnt, __le32* newDosEnt)
564 dstNS = ncp_get_known_namespace(server, volNumber);
565 if ((result = ncp_ObtainSpecificDirBase(server, srcNS, dstNS, volNumber,
566 dirEntNum, NULL, newDirEnt, newDosEnt)) != 0)
570 server->name_space[volNumber] = dstNS;
572 server->m.mounted_vol[1] = 0;
573 server->m.mounted_vol[0] = 'X';
578 ncp_get_volume_root(struct ncp_server *server, const char *volname,
579 __u32* volume, __le32* dirent, __le32* dosdirent)
584 DPRINTK("ncp_get_volume_root: looking up vol %s\n", volname);
586 ncp_init_request(server);
587 ncp_add_byte(server, 22); /* Subfunction: Generate dir handle */
588 ncp_add_byte(server, 0); /* DOS namespace */
589 ncp_add_byte(server, 0); /* reserved */
590 ncp_add_byte(server, 0); /* reserved */
591 ncp_add_byte(server, 0); /* reserved */
593 ncp_add_byte(server, 0); /* faked volume number */
594 ncp_add_dword(server, 0); /* faked dir_base */
595 ncp_add_byte(server, 0xff); /* Don't have a dir_base */
596 ncp_add_byte(server, 1); /* 1 path component */
597 ncp_add_pstring(server, volname);
599 if ((result = ncp_request(server, 87)) != 0) {
600 ncp_unlock_server(server);
603 *dirent = *dosdirent = ncp_reply_dword(server, 4);
604 volnum = ncp_reply_byte(server, 8);
605 ncp_unlock_server(server);
608 server->name_space[volnum] = ncp_get_known_namespace(server, volnum);
610 DPRINTK("lookup_vol: namespace[%d] = %d\n",
611 volnum, server->name_space[volnum]);
617 ncp_lookup_volume(struct ncp_server *server, const char *volname,
618 struct nw_info_struct *target)
622 memset(target, 0, sizeof(*target));
623 result = ncp_get_volume_root(server, volname,
624 &target->volNumber, &target->dirEntNum, &target->DosDirNum);
628 target->nameLen = strlen(volname);
629 memcpy(target->entryName, volname, target->nameLen+1);
630 target->attributes = aDIR;
631 /* set dates to Jan 1, 1986 00:00 */
632 target->creationTime = target->modifyTime = cpu_to_le16(0x0000);
633 target->creationDate = target->modifyDate = target->lastAccessDate = cpu_to_le16(0x0C21);
634 target->nfs.mode = 0;
638 int ncp_modify_file_or_subdir_dos_info_path(struct ncp_server *server,
642 const struct nw_modify_dos_info *info)
644 __u8 volnum = NCP_FINFO(dir)->volNumber;
645 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
648 ncp_init_request(server);
649 ncp_add_byte(server, 7); /* subfunction */
650 ncp_add_byte(server, server->name_space[volnum]);
651 ncp_add_byte(server, 0); /* reserved */
652 ncp_add_word(server, cpu_to_le16(0x8006)); /* search attribs: all */
654 ncp_add_dword(server, info_mask);
655 ncp_add_mem(server, info, sizeof(*info));
656 ncp_add_handle_path(server, volnum, dirent, 1, path);
658 result = ncp_request(server, 87);
659 ncp_unlock_server(server);
663 int ncp_modify_file_or_subdir_dos_info(struct ncp_server *server,
666 const struct nw_modify_dos_info *info)
668 return ncp_modify_file_or_subdir_dos_info_path(server, dir, NULL,
672 #ifdef CONFIG_NCPFS_NFS_NS
673 int ncp_modify_nfs_info(struct ncp_server *server, __u8 volnum, __le32 dirent,
674 __u32 mode, __u32 rdev)
679 if (server->name_space[volnum] == NW_NS_NFS) {
680 ncp_init_request(server);
681 ncp_add_byte(server, 25); /* subfunction */
682 ncp_add_byte(server, server->name_space[volnum]);
683 ncp_add_byte(server, NW_NS_NFS);
684 ncp_add_byte(server, volnum);
685 ncp_add_dword(server, dirent);
686 /* we must always operate on both nlinks and rdev, otherwise
688 ncp_add_dword_lh(server, NSIBM_NFS_MODE | NSIBM_NFS_NLINKS | NSIBM_NFS_RDEV);
689 ncp_add_dword_lh(server, mode);
690 ncp_add_dword_lh(server, 1); /* nlinks */
691 ncp_add_dword_lh(server, rdev);
692 result = ncp_request(server, 87);
693 ncp_unlock_server(server);
701 ncp_DeleteNSEntry(struct ncp_server *server,
702 __u8 have_dir_base, __u8 volnum, __le32 dirent,
703 char* name, __u8 ns, __le16 attr)
707 ncp_init_request(server);
708 ncp_add_byte(server, 8); /* subfunction */
709 ncp_add_byte(server, ns);
710 ncp_add_byte(server, 0); /* reserved */
711 ncp_add_word(server, attr); /* search attribs: all */
712 ncp_add_handle_path(server, volnum, dirent, have_dir_base, name);
714 result = ncp_request(server, 87);
715 ncp_unlock_server(server);
720 ncp_del_file_or_subdir2(struct ncp_server *server,
721 struct dentry *dentry)
723 struct inode *inode = dentry->d_inode;
728 return 0xFF; /* Any error */
730 volnum = NCP_FINFO(inode)->volNumber;
731 dirent = NCP_FINFO(inode)->DosDirNum;
732 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006));
736 ncp_del_file_or_subdir(struct ncp_server *server,
737 struct inode *dir, char *name)
739 __u8 volnum = NCP_FINFO(dir)->volNumber;
740 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
742 #ifdef CONFIG_NCPFS_NFS_NS
743 if (server->name_space[volnum]==NW_NS_NFS)
747 result=ncp_obtain_DOS_dir_base(server, volnum, dirent, name, &dirent);
748 if (result) return result;
749 return ncp_DeleteNSEntry(server, 1, volnum, dirent, NULL, NW_NS_DOS, cpu_to_le16(0x8006));
752 #endif /* CONFIG_NCPFS_NFS_NS */
753 return ncp_DeleteNSEntry(server, 1, volnum, dirent, name, server->name_space[volnum], cpu_to_le16(0x8006));
756 static inline void ConvertToNWfromDWORD(__u16 v0, __u16 v1, __u8 ret[6])
758 __le16 *dest = (__le16 *) ret;
759 dest[1] = cpu_to_le16(v0);
760 dest[2] = cpu_to_le16(v1);
761 dest[0] = cpu_to_le16(v0 + 1);
765 /* If both dir and name are NULL, then in target there's already a
766 looked-up entry that wants to be opened. */
767 int ncp_open_create_file_or_subdir(struct ncp_server *server,
768 struct inode *dir, char *name,
769 int open_create_mode,
770 __le32 create_attributes,
771 __le16 desired_acc_rights,
772 struct ncp_entry_info *target)
774 __le16 search_attribs = cpu_to_le16(0x0006);
779 volnum = NCP_FINFO(dir)->volNumber;
780 dirent = NCP_FINFO(dir)->dirEntNum;
782 if ((create_attributes & aDIR) != 0) {
783 search_attribs |= cpu_to_le16(0x8000);
785 ncp_init_request(server);
786 ncp_add_byte(server, 1); /* subfunction */
787 ncp_add_byte(server, server->name_space[volnum]);
788 ncp_add_byte(server, open_create_mode);
789 ncp_add_word(server, search_attribs);
790 ncp_add_dword(server, RIM_ALL);
791 ncp_add_dword(server, create_attributes);
792 /* The desired acc rights seem to be the inherited rights mask
794 ncp_add_word(server, desired_acc_rights);
795 ncp_add_handle_path(server, volnum, dirent, 1, name);
797 if ((result = ncp_request(server, 87)) != 0)
799 if (!(create_attributes & aDIR))
802 /* in target there's a new finfo to fill */
803 ncp_extract_file_info(ncp_reply_data(server, 6), &(target->i));
804 target->volume = target->i.volNumber;
805 ConvertToNWfromDWORD(ncp_reply_le16(server, 0),
806 ncp_reply_le16(server, 2),
807 target->file_handle);
809 ncp_unlock_server(server);
811 (void)ncp_obtain_nfs_info(server, &(target->i));
815 ncp_unlock_server(server);
820 ncp_initialize_search(struct ncp_server *server, struct inode *dir,
821 struct nw_search_sequence *target)
823 __u8 volnum = NCP_FINFO(dir)->volNumber;
824 __le32 dirent = NCP_FINFO(dir)->dirEntNum;
827 ncp_init_request(server);
828 ncp_add_byte(server, 2); /* subfunction */
829 ncp_add_byte(server, server->name_space[volnum]);
830 ncp_add_byte(server, 0); /* reserved */
831 ncp_add_handle_path(server, volnum, dirent, 1, NULL);
833 result = ncp_request(server, 87);
836 memcpy(target, ncp_reply_data(server, 0), sizeof(*target));
839 ncp_unlock_server(server);
843 int ncp_search_for_fileset(struct ncp_server *server,
844 struct nw_search_sequence *seq,
854 ncp_init_request(server);
855 ncp_add_byte(server, 20);
856 ncp_add_byte(server, server->name_space[seq->volNumber]);
857 ncp_add_byte(server, 0); /* datastream */
858 ncp_add_word(server, cpu_to_le16(0x8006));
859 ncp_add_dword(server, RIM_ALL);
860 ncp_add_word(server, cpu_to_le16(32767)); /* max returned items */
861 ncp_add_mem(server, seq, 9);
862 #ifdef CONFIG_NCPFS_NFS_NS
863 if (server->name_space[seq->volNumber] == NW_NS_NFS) {
864 ncp_add_byte(server, 0); /* 0 byte pattern */
868 ncp_add_byte(server, 2); /* 2 byte pattern */
869 ncp_add_byte(server, 0xff); /* following is a wildcard */
870 ncp_add_byte(server, '*');
872 result = ncp_request2(server, 87, buffer, bufsize);
874 ncp_unlock_server(server);
877 if (server->ncp_reply_size < 12) {
878 ncp_unlock_server(server);
881 *rsize = server->ncp_reply_size - 12;
882 ncp_unlock_server(server);
883 buffer = buffer + sizeof(struct ncp_reply_header);
885 *cnt = WVAL_LH(buffer + 10);
886 *more = BVAL(buffer + 9);
887 memcpy(seq, buffer, 9);
892 ncp_RenameNSEntry(struct ncp_server *server,
893 struct inode *old_dir, char *old_name, __le16 old_type,
894 struct inode *new_dir, char *new_name)
896 int result = -EINVAL;
898 if ((old_dir == NULL) || (old_name == NULL) ||
899 (new_dir == NULL) || (new_name == NULL))
902 ncp_init_request(server);
903 ncp_add_byte(server, 4); /* subfunction */
904 ncp_add_byte(server, server->name_space[NCP_FINFO(old_dir)->volNumber]);
905 ncp_add_byte(server, 1); /* rename flag */
906 ncp_add_word(server, old_type); /* search attributes */
908 /* source Handle Path */
909 ncp_add_byte(server, NCP_FINFO(old_dir)->volNumber);
910 ncp_add_dword(server, NCP_FINFO(old_dir)->dirEntNum);
911 ncp_add_byte(server, 1);
912 ncp_add_byte(server, 1); /* 1 source component */
914 /* dest Handle Path */
915 ncp_add_byte(server, NCP_FINFO(new_dir)->volNumber);
916 ncp_add_dword(server, NCP_FINFO(new_dir)->dirEntNum);
917 ncp_add_byte(server, 1);
918 ncp_add_byte(server, 1); /* 1 destination component */
920 /* source path string */
921 ncp_add_pstring(server, old_name);
922 /* dest path string */
923 ncp_add_pstring(server, new_name);
925 result = ncp_request(server, 87);
926 ncp_unlock_server(server);
931 int ncp_ren_or_mov_file_or_subdir(struct ncp_server *server,
932 struct inode *old_dir, char *old_name,
933 struct inode *new_dir, char *new_name)
936 __le16 old_type = cpu_to_le16(0x06);
938 /* If somebody can do it atomic, call me... vandrove@vc.cvut.cz */
939 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
941 if (result == 0xFF) /* File Not Found, try directory */
943 old_type = cpu_to_le16(0x16);
944 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
947 if (result != 0x92) return result; /* All except NO_FILES_RENAMED */
948 result = ncp_del_file_or_subdir(server, new_dir, new_name);
949 if (result != 0) return -EACCES;
950 result = ncp_RenameNSEntry(server, old_dir, old_name, old_type,
956 /* We have to transfer to/from user space */
958 ncp_read_kernel(struct ncp_server *server, const char *file_id,
959 __u32 offset, __u16 to_read, char *target, int *bytes_read)
964 ncp_init_request(server);
965 ncp_add_byte(server, 0);
966 ncp_add_mem(server, file_id, 6);
967 ncp_add_be32(server, offset);
968 ncp_add_be16(server, to_read);
970 if ((result = ncp_request(server, 72)) != 0) {
973 *bytes_read = ncp_reply_be16(server, 0);
974 source = ncp_reply_data(server, 2 + (offset & 1));
976 memcpy(target, source, *bytes_read);
978 ncp_unlock_server(server);
982 /* There is a problem... egrep and some other silly tools do:
983 x = mmap(NULL, MAP_PRIVATE, PROT_READ|PROT_WRITE, <ncpfs fd>, 32768);
984 read(<ncpfs fd>, x, 32768);
985 Now copying read result by copy_to_user causes pagefault. This pagefault
986 could not be handled because of server was locked due to read. So we have
987 to use temporary buffer. So ncp_unlock_server must be done before
988 copy_to_user (and for write, copy_from_user must be done before
989 ncp_init_request... same applies for send raw packet ioctl). Because of
990 file is normally read in bigger chunks, caller provides kmalloced
991 (vmalloced) chunk of memory with size >= to_read...
994 ncp_read_bounce(struct ncp_server *server, const char *file_id,
995 __u32 offset, __u16 to_read, char __user *target, int *bytes_read,
996 void* bounce, __u32 bufsize)
1000 ncp_init_request(server);
1001 ncp_add_byte(server, 0);
1002 ncp_add_mem(server, file_id, 6);
1003 ncp_add_be32(server, offset);
1004 ncp_add_be16(server, to_read);
1005 result = ncp_request2(server, 72, bounce, bufsize);
1006 ncp_unlock_server(server);
1008 int len = get_unaligned_be16((char *)bounce +
1009 sizeof(struct ncp_reply_header));
1011 if (len <= to_read) {
1014 source = (char*)bounce +
1015 sizeof(struct ncp_reply_header) + 2 +
1019 if (copy_to_user(target, source, len))
1027 ncp_write_kernel(struct ncp_server *server, const char *file_id,
1028 __u32 offset, __u16 to_write,
1029 const char *source, int *bytes_written)
1033 ncp_init_request(server);
1034 ncp_add_byte(server, 0);
1035 ncp_add_mem(server, file_id, 6);
1036 ncp_add_be32(server, offset);
1037 ncp_add_be16(server, to_write);
1038 ncp_add_mem(server, source, to_write);
1040 if ((result = ncp_request(server, 73)) == 0)
1041 *bytes_written = to_write;
1042 ncp_unlock_server(server);
1046 #ifdef CONFIG_NCPFS_IOCTL_LOCKING
1048 ncp_LogPhysicalRecord(struct ncp_server *server, const char *file_id,
1049 __u8 locktype, __u32 offset, __u32 length, __u16 timeout)
1053 ncp_init_request(server);
1054 ncp_add_byte(server, locktype);
1055 ncp_add_mem(server, file_id, 6);
1056 ncp_add_be32(server, offset);
1057 ncp_add_be32(server, length);
1058 ncp_add_be16(server, timeout);
1060 if ((result = ncp_request(server, 0x1A)) != 0)
1062 ncp_unlock_server(server);
1065 ncp_unlock_server(server);
1070 ncp_ClearPhysicalRecord(struct ncp_server *server, const char *file_id,
1071 __u32 offset, __u32 length)
1075 ncp_init_request(server);
1076 ncp_add_byte(server, 0); /* who knows... lanalyzer says that */
1077 ncp_add_mem(server, file_id, 6);
1078 ncp_add_be32(server, offset);
1079 ncp_add_be32(server, length);
1081 if ((result = ncp_request(server, 0x1E)) != 0)
1083 ncp_unlock_server(server);
1086 ncp_unlock_server(server);
1089 #endif /* CONFIG_NCPFS_IOCTL_LOCKING */
1091 #ifdef CONFIG_NCPFS_NLS
1092 /* This are the NLS conversion routines with inspirations and code parts
1093 * from the vfat file system and hints from Petr Vandrovec.
1097 ncp__io2vol(struct ncp_server *server, unsigned char *vname, unsigned int *vlen,
1098 const unsigned char *iname, unsigned int ilen, int cc)
1100 struct nls_table *in = server->nls_io;
1101 struct nls_table *out = server->nls_vol;
1102 unsigned char *vname_start;
1103 unsigned char *vname_end;
1104 const unsigned char *iname_end;
1106 iname_end = iname + ilen;
1107 vname_start = vname;
1108 vname_end = vname + *vlen - 1;
1110 while (iname < iname_end) {
1114 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1118 k = utf8_to_utf32(iname, iname_end - iname, &u);
1119 if (k < 0 || u > MAX_WCHAR_T)
1124 if (*iname == NCP_ESC) {
1127 if (iname_end - iname < 5)
1131 for (k = 1; k < 5; k++) {
1134 nc = iname[k] - '0';
1136 nc -= 'A' - '0' - 10;
1137 if ((nc < 10) || (nc > 15)) {
1141 ec = (ec << 4) | nc;
1146 if ( (chl = in->char2uni(iname, iname_end - iname, &ec)) < 0)
1152 /* unitoupper should be here! */
1154 chl = out->uni2char(ec, vname, vname_end - vname);
1158 /* this is wrong... */
1162 for (chi = 0; chi < chl; chi++){
1163 vname[chi] = ncp_toupper(out, vname[chi]);
1170 *vlen = vname - vname_start;
1175 ncp__vol2io(struct ncp_server *server, unsigned char *iname, unsigned int *ilen,
1176 const unsigned char *vname, unsigned int vlen, int cc)
1178 struct nls_table *in = server->nls_vol;
1179 struct nls_table *out = server->nls_io;
1180 const unsigned char *vname_end;
1181 unsigned char *iname_start;
1182 unsigned char *iname_end;
1183 unsigned char *vname_cc;
1191 /* this is wrong! */
1192 vname_cc = kmalloc(vlen, GFP_KERNEL);
1195 for (i = 0; i < vlen; i++)
1196 vname_cc[i] = ncp_tolower(in, vname[i]);
1200 iname_start = iname;
1201 iname_end = iname + *ilen - 1;
1202 vname_end = vname + vlen;
1204 while (vname < vname_end) {
1208 if ( (chl = in->char2uni(vname, vname_end - vname, &ec)) < 0) {
1214 /* unitolower should be here! */
1216 if (NCP_IS_FLAG(server, NCP_FLAG_UTF8)) {
1219 k = utf32_to_utf8(ec, iname, iname_end - iname);
1221 err = -ENAMETOOLONG;
1226 if ( (chl = out->uni2char(ec, iname, iname_end - iname)) >= 0) {
1231 if (iname_end - iname < 5) {
1232 err = -ENAMETOOLONG;
1236 for (k = 4; k > 0; k--) {
1239 v = (ec & 0xF) + '0';
1252 *ilen = iname - iname_start;
1263 ncp__io2vol(unsigned char *vname, unsigned int *vlen,
1264 const unsigned char *iname, unsigned int ilen, int cc)
1269 return -ENAMETOOLONG;
1272 for (i = 0; i < ilen; i++) {
1273 *vname = toupper(*iname);
1278 memmove(vname, iname, ilen);
1288 ncp__vol2io(unsigned char *iname, unsigned int *ilen,
1289 const unsigned char *vname, unsigned int vlen, int cc)
1294 return -ENAMETOOLONG;
1297 for (i = 0; i < vlen; i++) {
1298 *iname = tolower(*vname);
1303 memmove(iname, vname, vlen);