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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * inode.c | |
3 | * | |
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 1998 Wolfram Pienkoss for NLS | |
8 | * Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info | |
9 | * | |
10 | */ | |
11 | ||
1da177e4 LT |
12 | #include <linux/module.h> |
13 | ||
14 | #include <asm/system.h> | |
15 | #include <asm/uaccess.h> | |
16 | #include <asm/byteorder.h> | |
17 | ||
18 | #include <linux/time.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/string.h> | |
22 | #include <linux/stat.h> | |
23 | #include <linux/errno.h> | |
24 | #include <linux/file.h> | |
25 | #include <linux/fcntl.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/vmalloc.h> | |
28 | #include <linux/init.h> | |
1da177e4 | 29 | #include <linux/vfs.h> |
564cd138 MS |
30 | #include <linux/mount.h> |
31 | #include <linux/seq_file.h> | |
1da177e4 LT |
32 | |
33 | #include <linux/ncp_fs.h> | |
34 | ||
35 | #include <net/sock.h> | |
36 | ||
37 | #include "ncplib_kernel.h" | |
38 | #include "getopt.h" | |
39 | ||
564cd138 MS |
40 | #define NCP_DEFAULT_FILE_MODE 0600 |
41 | #define NCP_DEFAULT_DIR_MODE 0700 | |
42 | #define NCP_DEFAULT_TIME_OUT 10 | |
43 | #define NCP_DEFAULT_RETRY_COUNT 20 | |
44 | ||
94ee8494 | 45 | static void ncp_evict_inode(struct inode *); |
1da177e4 | 46 | static void ncp_put_super(struct super_block *); |
726c3342 | 47 | static int ncp_statfs(struct dentry *, struct kstatfs *); |
564cd138 | 48 | static int ncp_show_options(struct seq_file *, struct vfsmount *); |
1da177e4 | 49 | |
e18b890b | 50 | static struct kmem_cache * ncp_inode_cachep; |
1da177e4 LT |
51 | |
52 | static struct inode *ncp_alloc_inode(struct super_block *sb) | |
53 | { | |
54 | struct ncp_inode_info *ei; | |
e94b1766 | 55 | ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); |
1da177e4 LT |
56 | if (!ei) |
57 | return NULL; | |
58 | return &ei->vfs_inode; | |
59 | } | |
60 | ||
61 | static void ncp_destroy_inode(struct inode *inode) | |
62 | { | |
63 | kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode)); | |
64 | } | |
65 | ||
51cc5068 | 66 | static void init_once(void *foo) |
1da177e4 LT |
67 | { |
68 | struct ncp_inode_info *ei = (struct ncp_inode_info *) foo; | |
69 | ||
a35afb83 CL |
70 | mutex_init(&ei->open_mutex); |
71 | inode_init_once(&ei->vfs_inode); | |
1da177e4 | 72 | } |
20c2df83 | 73 | |
1da177e4 LT |
74 | static int init_inodecache(void) |
75 | { | |
76 | ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", | |
77 | sizeof(struct ncp_inode_info), | |
fffb60f9 PJ |
78 | 0, (SLAB_RECLAIM_ACCOUNT| |
79 | SLAB_MEM_SPREAD), | |
20c2df83 | 80 | init_once); |
1da177e4 LT |
81 | if (ncp_inode_cachep == NULL) |
82 | return -ENOMEM; | |
83 | return 0; | |
84 | } | |
85 | ||
86 | static void destroy_inodecache(void) | |
87 | { | |
1a1d92c1 | 88 | kmem_cache_destroy(ncp_inode_cachep); |
1da177e4 LT |
89 | } |
90 | ||
91 | static int ncp_remount(struct super_block *sb, int *flags, char* data) | |
92 | { | |
93 | *flags |= MS_NODIRATIME; | |
94 | return 0; | |
95 | } | |
96 | ||
ee9b6d61 | 97 | static const struct super_operations ncp_sops = |
1da177e4 LT |
98 | { |
99 | .alloc_inode = ncp_alloc_inode, | |
100 | .destroy_inode = ncp_destroy_inode, | |
101 | .drop_inode = generic_delete_inode, | |
94ee8494 | 102 | .evict_inode = ncp_evict_inode, |
1da177e4 LT |
103 | .put_super = ncp_put_super, |
104 | .statfs = ncp_statfs, | |
105 | .remount_fs = ncp_remount, | |
564cd138 | 106 | .show_options = ncp_show_options, |
1da177e4 LT |
107 | }; |
108 | ||
1da177e4 LT |
109 | /* |
110 | * Fill in the ncpfs-specific information in the inode. | |
111 | */ | |
112 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) | |
113 | { | |
114 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; | |
115 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; | |
116 | NCP_FINFO(inode)->volNumber = nwinfo->volume; | |
117 | } | |
118 | ||
119 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) | |
120 | { | |
121 | ncp_update_dirent(inode, nwinfo); | |
122 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
123 | NCP_FINFO(inode)->access = nwinfo->access; | |
124 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, | |
125 | sizeof(nwinfo->file_handle)); | |
126 | DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", | |
127 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, | |
128 | NCP_FINFO(inode)->dirEntNum); | |
129 | } | |
130 | ||
131 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) | |
132 | { | |
133 | /* NFS namespace mode overrides others if it's set. */ | |
134 | DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", | |
135 | nwi->entryName, nwi->nfs.mode); | |
136 | if (nwi->nfs.mode) { | |
137 | /* XXX Security? */ | |
138 | inode->i_mode = nwi->nfs.mode; | |
139 | } | |
140 | ||
2e54eb96 | 141 | inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
1da177e4 LT |
142 | |
143 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); | |
144 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); | |
145 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); | |
146 | inode->i_atime.tv_nsec = 0; | |
147 | inode->i_mtime.tv_nsec = 0; | |
148 | inode->i_ctime.tv_nsec = 0; | |
149 | } | |
150 | ||
151 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) | |
152 | { | |
153 | struct nw_info_struct *nwi = &nwinfo->i; | |
154 | struct ncp_server *server = NCP_SERVER(inode); | |
155 | ||
156 | if (nwi->attributes & aDIR) { | |
157 | inode->i_mode = server->m.dir_mode; | |
158 | /* for directories dataStreamSize seems to be some | |
159 | Object ID ??? */ | |
2e54eb96 | 160 | i_size_write(inode, NCP_BLOCK_SIZE); |
1da177e4 | 161 | } else { |
2e54eb96 PV |
162 | u32 size; |
163 | ||
1da177e4 | 164 | inode->i_mode = server->m.file_mode; |
2e54eb96 PV |
165 | size = le32_to_cpu(nwi->dataStreamSize); |
166 | i_size_write(inode, size); | |
1da177e4 LT |
167 | #ifdef CONFIG_NCPFS_EXTRAS |
168 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) | |
169 | && (nwi->attributes & aSHARED)) { | |
170 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { | |
171 | case aHIDDEN: | |
172 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { | |
2e54eb96 PV |
173 | if (/* (size >= NCP_MIN_SYMLINK_SIZE) |
174 | && */ (size <= NCP_MAX_SYMLINK_SIZE)) { | |
1da177e4 LT |
175 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
176 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; | |
177 | break; | |
178 | } | |
179 | } | |
180 | /* FALLTHROUGH */ | |
181 | case 0: | |
182 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
183 | inode->i_mode |= S_IRUGO; | |
184 | break; | |
185 | case aSYSTEM: | |
186 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
187 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; | |
188 | break; | |
189 | /* case aSYSTEM|aHIDDEN: */ | |
190 | default: | |
191 | /* reserved combination */ | |
192 | break; | |
193 | } | |
194 | } | |
195 | #endif | |
196 | } | |
197 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; | |
198 | } | |
199 | ||
200 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) | |
201 | { | |
202 | NCP_FINFO(inode)->flags = 0; | |
203 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { | |
204 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
205 | ncp_update_attrs(inode, nwinfo); | |
206 | } | |
207 | ||
208 | ncp_update_dates(inode, &nwinfo->i); | |
209 | ncp_update_dirent(inode, nwinfo); | |
210 | } | |
211 | ||
212 | /* | |
2e54eb96 | 213 | * Fill in the inode based on the ncp_entry_info structure. Used only for brand new inodes. |
1da177e4 LT |
214 | */ |
215 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) | |
216 | { | |
217 | struct ncp_server *server = NCP_SERVER(inode); | |
218 | ||
219 | NCP_FINFO(inode)->flags = 0; | |
220 | ||
221 | ncp_update_attrs(inode, nwinfo); | |
222 | ||
223 | DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); | |
224 | ||
225 | inode->i_nlink = 1; | |
226 | inode->i_uid = server->m.uid; | |
227 | inode->i_gid = server->m.gid; | |
1da177e4 LT |
228 | |
229 | ncp_update_dates(inode, &nwinfo->i); | |
230 | ncp_update_inode(inode, nwinfo); | |
231 | } | |
232 | ||
233 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
92e1d5be | 234 | static const struct inode_operations ncp_symlink_inode_operations = { |
1da177e4 LT |
235 | .readlink = generic_readlink, |
236 | .follow_link = page_follow_link_light, | |
237 | .put_link = page_put_link, | |
238 | .setattr = ncp_notify_change, | |
239 | }; | |
240 | #endif | |
241 | ||
242 | /* | |
243 | * Get a new inode. | |
244 | */ | |
245 | struct inode * | |
246 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) | |
247 | { | |
248 | struct inode *inode; | |
249 | ||
250 | if (info == NULL) { | |
251 | printk(KERN_ERR "ncp_iget: info is NULL\n"); | |
252 | return NULL; | |
253 | } | |
254 | ||
255 | inode = new_inode(sb); | |
256 | if (inode) { | |
257 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); | |
258 | ||
2e54eb96 | 259 | inode->i_mapping->backing_dev_info = sb->s_bdi; |
1da177e4 LT |
260 | inode->i_ino = info->ino; |
261 | ncp_set_attr(inode, info); | |
262 | if (S_ISREG(inode->i_mode)) { | |
263 | inode->i_op = &ncp_file_inode_operations; | |
264 | inode->i_fop = &ncp_file_operations; | |
265 | } else if (S_ISDIR(inode->i_mode)) { | |
266 | inode->i_op = &ncp_dir_inode_operations; | |
267 | inode->i_fop = &ncp_dir_operations; | |
268 | #ifdef CONFIG_NCPFS_NFS_NS | |
269 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
270 | init_special_inode(inode, inode->i_mode, | |
271 | new_decode_dev(info->i.nfs.rdev)); | |
272 | #endif | |
273 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
274 | } else if (S_ISLNK(inode->i_mode)) { | |
275 | inode->i_op = &ncp_symlink_inode_operations; | |
276 | inode->i_data.a_ops = &ncp_symlink_aops; | |
277 | #endif | |
278 | } else { | |
279 | make_bad_inode(inode); | |
280 | } | |
281 | insert_inode_hash(inode); | |
282 | } else | |
283 | printk(KERN_ERR "ncp_iget: iget failed!\n"); | |
284 | return inode; | |
285 | } | |
286 | ||
287 | static void | |
94ee8494 | 288 | ncp_evict_inode(struct inode *inode) |
1da177e4 | 289 | { |
fef26658 | 290 | truncate_inode_pages(&inode->i_data, 0); |
94ee8494 | 291 | end_writeback(inode); |
fef26658 | 292 | |
1da177e4 | 293 | if (S_ISDIR(inode->i_mode)) { |
94ee8494 | 294 | DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino); |
1da177e4 LT |
295 | } |
296 | ||
297 | if (ncp_make_closed(inode) != 0) { | |
298 | /* We can't do anything but complain. */ | |
94ee8494 | 299 | printk(KERN_ERR "ncp_evict_inode: could not close\n"); |
1da177e4 | 300 | } |
1da177e4 LT |
301 | } |
302 | ||
303 | static void ncp_stop_tasks(struct ncp_server *server) { | |
304 | struct sock* sk = server->ncp_sock->sk; | |
2a4df5d3 PV |
305 | |
306 | lock_sock(sk); | |
1da177e4 LT |
307 | sk->sk_error_report = server->error_report; |
308 | sk->sk_data_ready = server->data_ready; | |
309 | sk->sk_write_space = server->write_space; | |
2a4df5d3 | 310 | release_sock(sk); |
1da177e4 LT |
311 | del_timer_sync(&server->timeout_tm); |
312 | flush_scheduled_work(); | |
313 | } | |
314 | ||
564cd138 MS |
315 | static int ncp_show_options(struct seq_file *seq, struct vfsmount *mnt) |
316 | { | |
317 | struct ncp_server *server = NCP_SBP(mnt->mnt_sb); | |
318 | unsigned int tmp; | |
319 | ||
320 | if (server->m.uid != 0) | |
321 | seq_printf(seq, ",uid=%u", server->m.uid); | |
322 | if (server->m.gid != 0) | |
323 | seq_printf(seq, ",gid=%u", server->m.gid); | |
324 | if (server->m.mounted_uid != 0) | |
325 | seq_printf(seq, ",owner=%u", server->m.mounted_uid); | |
326 | tmp = server->m.file_mode & S_IALLUGO; | |
327 | if (tmp != NCP_DEFAULT_FILE_MODE) | |
328 | seq_printf(seq, ",mode=0%o", tmp); | |
329 | tmp = server->m.dir_mode & S_IALLUGO; | |
330 | if (tmp != NCP_DEFAULT_DIR_MODE) | |
331 | seq_printf(seq, ",dirmode=0%o", tmp); | |
332 | if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) { | |
333 | tmp = server->m.time_out * 100 / HZ; | |
334 | seq_printf(seq, ",timeout=%u", tmp); | |
335 | } | |
336 | if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT) | |
337 | seq_printf(seq, ",retry=%u", server->m.retry_count); | |
338 | if (server->m.flags != 0) | |
339 | seq_printf(seq, ",flags=%lu", server->m.flags); | |
340 | if (server->m.wdog_pid != NULL) | |
341 | seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid)); | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
1da177e4 LT |
346 | static const struct ncp_option ncp_opts[] = { |
347 | { "uid", OPT_INT, 'u' }, | |
348 | { "gid", OPT_INT, 'g' }, | |
349 | { "owner", OPT_INT, 'o' }, | |
350 | { "mode", OPT_INT, 'm' }, | |
351 | { "dirmode", OPT_INT, 'd' }, | |
352 | { "timeout", OPT_INT, 't' }, | |
353 | { "retry", OPT_INT, 'r' }, | |
354 | { "flags", OPT_INT, 'f' }, | |
355 | { "wdogpid", OPT_INT, 'w' }, | |
356 | { "ncpfd", OPT_INT, 'n' }, | |
357 | { "infofd", OPT_INT, 'i' }, /* v5 */ | |
358 | { "version", OPT_INT, 'v' }, | |
359 | { NULL, 0, 0 } }; | |
360 | ||
361 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { | |
362 | int optval; | |
363 | char *optarg; | |
364 | unsigned long optint; | |
365 | int version = 0; | |
1de24126 | 366 | int ret; |
1da177e4 LT |
367 | |
368 | data->flags = 0; | |
369 | data->int_flags = 0; | |
370 | data->mounted_uid = 0; | |
2154227a | 371 | data->wdog_pid = NULL; |
1da177e4 | 372 | data->ncp_fd = ~0; |
564cd138 MS |
373 | data->time_out = NCP_DEFAULT_TIME_OUT; |
374 | data->retry_count = NCP_DEFAULT_RETRY_COUNT; | |
1da177e4 LT |
375 | data->uid = 0; |
376 | data->gid = 0; | |
564cd138 MS |
377 | data->file_mode = NCP_DEFAULT_FILE_MODE; |
378 | data->dir_mode = NCP_DEFAULT_DIR_MODE; | |
1da177e4 LT |
379 | data->info_fd = -1; |
380 | data->mounted_vol[0] = 0; | |
381 | ||
382 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { | |
1de24126 EB |
383 | ret = optval; |
384 | if (ret < 0) | |
385 | goto err; | |
1da177e4 LT |
386 | switch (optval) { |
387 | case 'u': | |
388 | data->uid = optint; | |
389 | break; | |
390 | case 'g': | |
391 | data->gid = optint; | |
392 | break; | |
393 | case 'o': | |
394 | data->mounted_uid = optint; | |
395 | break; | |
396 | case 'm': | |
397 | data->file_mode = optint; | |
398 | break; | |
399 | case 'd': | |
400 | data->dir_mode = optint; | |
401 | break; | |
402 | case 't': | |
403 | data->time_out = optint; | |
404 | break; | |
405 | case 'r': | |
406 | data->retry_count = optint; | |
407 | break; | |
408 | case 'f': | |
409 | data->flags = optint; | |
410 | break; | |
411 | case 'w': | |
2154227a | 412 | data->wdog_pid = find_get_pid(optint); |
1da177e4 LT |
413 | break; |
414 | case 'n': | |
415 | data->ncp_fd = optint; | |
416 | break; | |
417 | case 'i': | |
418 | data->info_fd = optint; | |
419 | break; | |
420 | case 'v': | |
1de24126 EB |
421 | ret = -ECHRNG; |
422 | if (optint < NCP_MOUNT_VERSION_V4) | |
423 | goto err; | |
424 | if (optint > NCP_MOUNT_VERSION_V5) | |
425 | goto err; | |
1da177e4 LT |
426 | version = optint; |
427 | break; | |
428 | ||
429 | } | |
430 | } | |
431 | return 0; | |
1de24126 EB |
432 | err: |
433 | put_pid(data->wdog_pid); | |
434 | data->wdog_pid = NULL; | |
435 | return ret; | |
1da177e4 LT |
436 | } |
437 | ||
438 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) | |
439 | { | |
440 | struct ncp_mount_data_kernel data; | |
441 | struct ncp_server *server; | |
442 | struct file *ncp_filp; | |
443 | struct inode *root_inode; | |
444 | struct inode *sock_inode; | |
445 | struct socket *sock; | |
446 | int error; | |
447 | int default_bufsize; | |
448 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
449 | int options; | |
450 | #endif | |
451 | struct ncp_entry_info finfo; | |
452 | ||
1de24126 | 453 | data.wdog_pid = NULL; |
f8314dc6 | 454 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
1da177e4 LT |
455 | if (!server) |
456 | return -ENOMEM; | |
457 | sb->s_fs_info = server; | |
1da177e4 LT |
458 | |
459 | error = -EFAULT; | |
460 | if (raw_data == NULL) | |
461 | goto out; | |
462 | switch (*(int*)raw_data) { | |
463 | case NCP_MOUNT_VERSION: | |
464 | { | |
465 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; | |
466 | ||
467 | data.flags = md->flags; | |
468 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; | |
469 | data.mounted_uid = md->mounted_uid; | |
2154227a | 470 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
471 | data.ncp_fd = md->ncp_fd; |
472 | data.time_out = md->time_out; | |
473 | data.retry_count = md->retry_count; | |
474 | data.uid = md->uid; | |
475 | data.gid = md->gid; | |
476 | data.file_mode = md->file_mode; | |
477 | data.dir_mode = md->dir_mode; | |
478 | data.info_fd = -1; | |
479 | memcpy(data.mounted_vol, md->mounted_vol, | |
480 | NCP_VOLNAME_LEN+1); | |
481 | } | |
482 | break; | |
483 | case NCP_MOUNT_VERSION_V4: | |
484 | { | |
485 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; | |
486 | ||
487 | data.flags = md->flags; | |
488 | data.int_flags = 0; | |
489 | data.mounted_uid = md->mounted_uid; | |
2154227a | 490 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
491 | data.ncp_fd = md->ncp_fd; |
492 | data.time_out = md->time_out; | |
493 | data.retry_count = md->retry_count; | |
494 | data.uid = md->uid; | |
495 | data.gid = md->gid; | |
496 | data.file_mode = md->file_mode; | |
497 | data.dir_mode = md->dir_mode; | |
498 | data.info_fd = -1; | |
499 | data.mounted_vol[0] = 0; | |
500 | } | |
501 | break; | |
502 | default: | |
503 | error = -ECHRNG; | |
504 | if (memcmp(raw_data, "vers", 4) == 0) { | |
505 | error = ncp_parse_options(&data, raw_data); | |
506 | } | |
507 | if (error) | |
508 | goto out; | |
509 | break; | |
510 | } | |
511 | error = -EBADF; | |
512 | ncp_filp = fget(data.ncp_fd); | |
513 | if (!ncp_filp) | |
514 | goto out; | |
515 | error = -ENOTSOCK; | |
92e5baef | 516 | sock_inode = ncp_filp->f_path.dentry->d_inode; |
1da177e4 LT |
517 | if (!S_ISSOCK(sock_inode->i_mode)) |
518 | goto out_fput; | |
519 | sock = SOCKET_I(sock_inode); | |
520 | if (!sock) | |
521 | goto out_fput; | |
522 | ||
523 | if (sock->type == SOCK_STREAM) | |
524 | default_bufsize = 0xF000; | |
525 | else | |
526 | default_bufsize = 1024; | |
527 | ||
528 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ | |
529 | sb->s_maxbytes = 0xFFFFFFFFU; | |
530 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ | |
531 | sb->s_blocksize_bits = 10; | |
532 | sb->s_magic = NCP_SUPER_MAGIC; | |
533 | sb->s_op = &ncp_sops; | |
f1970c73 | 534 | sb->s_bdi = &server->bdi; |
1da177e4 LT |
535 | |
536 | server = NCP_SBP(sb); | |
537 | memset(server, 0, sizeof(*server)); | |
538 | ||
f1970c73 JA |
539 | error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY); |
540 | if (error) | |
541 | goto out_bdi; | |
542 | ||
1da177e4 LT |
543 | server->ncp_filp = ncp_filp; |
544 | server->ncp_sock = sock; | |
545 | ||
546 | if (data.info_fd != -1) { | |
547 | struct socket *info_sock; | |
548 | ||
549 | error = -EBADF; | |
550 | server->info_filp = fget(data.info_fd); | |
551 | if (!server->info_filp) | |
552 | goto out_fput; | |
553 | error = -ENOTSOCK; | |
92e5baef | 554 | sock_inode = server->info_filp->f_path.dentry->d_inode; |
1da177e4 LT |
555 | if (!S_ISSOCK(sock_inode->i_mode)) |
556 | goto out_fput2; | |
557 | info_sock = SOCKET_I(sock_inode); | |
558 | if (!info_sock) | |
559 | goto out_fput2; | |
560 | error = -EBADFD; | |
561 | if (info_sock->type != SOCK_STREAM) | |
562 | goto out_fput2; | |
563 | server->info_sock = info_sock; | |
564 | } | |
565 | ||
566 | /* server->lock = 0; */ | |
8e3f9045 | 567 | mutex_init(&server->mutex); |
1da177e4 LT |
568 | server->packet = NULL; |
569 | /* server->buffer_size = 0; */ | |
570 | /* server->conn_status = 0; */ | |
571 | /* server->root_dentry = NULL; */ | |
572 | /* server->root_setuped = 0; */ | |
2e54eb96 | 573 | mutex_init(&server->root_setup_lock); |
1da177e4 LT |
574 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
575 | /* server->sign_wanted = 0; */ | |
576 | /* server->sign_active = 0; */ | |
577 | #endif | |
2e54eb96 | 578 | init_rwsem(&server->auth_rwsem); |
1da177e4 LT |
579 | server->auth.auth_type = NCP_AUTH_NONE; |
580 | /* server->auth.object_name_len = 0; */ | |
581 | /* server->auth.object_name = NULL; */ | |
582 | /* server->auth.object_type = 0; */ | |
583 | /* server->priv.len = 0; */ | |
584 | /* server->priv.data = NULL; */ | |
585 | ||
586 | server->m = data; | |
587 | /* Althought anything producing this is buggy, it happens | |
588 | now because of PATH_MAX changes.. */ | |
589 | if (server->m.time_out < 1) { | |
590 | server->m.time_out = 10; | |
591 | printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); | |
592 | } | |
593 | server->m.time_out = server->m.time_out * HZ / 100; | |
594 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; | |
595 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; | |
596 | ||
597 | #ifdef CONFIG_NCPFS_NLS | |
598 | /* load the default NLS charsets */ | |
599 | server->nls_vol = load_nls_default(); | |
600 | server->nls_io = load_nls_default(); | |
601 | #endif /* CONFIG_NCPFS_NLS */ | |
602 | ||
2e54eb96 | 603 | atomic_set(&server->dentry_ttl, 0); /* no caching */ |
1da177e4 LT |
604 | |
605 | INIT_LIST_HEAD(&server->tx.requests); | |
8e3f9045 | 606 | mutex_init(&server->rcv.creq_mutex); |
1da177e4 LT |
607 | server->tx.creq = NULL; |
608 | server->rcv.creq = NULL; | |
1da177e4 LT |
609 | |
610 | init_timer(&server->timeout_tm); | |
611 | #undef NCP_PACKET_SIZE | |
612 | #define NCP_PACKET_SIZE 131072 | |
613 | error = -ENOMEM; | |
614 | server->packet_size = NCP_PACKET_SIZE; | |
615 | server->packet = vmalloc(NCP_PACKET_SIZE); | |
616 | if (server->packet == NULL) | |
617 | goto out_nls; | |
c5f93cf1 PO |
618 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
619 | if (server->txbuf == NULL) | |
620 | goto out_packet; | |
621 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); | |
622 | if (server->rxbuf == NULL) | |
623 | goto out_txbuf; | |
1da177e4 | 624 | |
2a4df5d3 PV |
625 | lock_sock(sock->sk); |
626 | server->data_ready = sock->sk->sk_data_ready; | |
627 | server->write_space = sock->sk->sk_write_space; | |
628 | server->error_report = sock->sk->sk_error_report; | |
629 | sock->sk->sk_user_data = server; | |
1da177e4 LT |
630 | sock->sk->sk_data_ready = ncp_tcp_data_ready; |
631 | sock->sk->sk_error_report = ncp_tcp_error_report; | |
632 | if (sock->type == SOCK_STREAM) { | |
633 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; | |
634 | server->rcv.len = 10; | |
635 | server->rcv.state = 0; | |
c4028958 DH |
636 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
637 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); | |
1da177e4 LT |
638 | sock->sk->sk_write_space = ncp_tcp_write_space; |
639 | } else { | |
c4028958 DH |
640 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
641 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); | |
1da177e4 LT |
642 | server->timeout_tm.data = (unsigned long)server; |
643 | server->timeout_tm.function = ncpdgram_timeout_call; | |
644 | } | |
2a4df5d3 | 645 | release_sock(sock->sk); |
1da177e4 LT |
646 | |
647 | ncp_lock_server(server); | |
648 | error = ncp_connect(server); | |
649 | ncp_unlock_server(server); | |
650 | if (error < 0) | |
c5f93cf1 | 651 | goto out_rxbuf; |
1da177e4 LT |
652 | DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
653 | ||
654 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ | |
655 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
656 | if (ncp_negotiate_size_and_options(server, default_bufsize, | |
657 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) | |
658 | { | |
659 | if (options != NCP_DEFAULT_OPTIONS) | |
660 | { | |
661 | if (ncp_negotiate_size_and_options(server, | |
662 | default_bufsize, | |
663 | options & 2, | |
664 | &(server->buffer_size), &options) != 0) | |
665 | ||
666 | { | |
667 | goto out_disconnect; | |
668 | } | |
669 | } | |
2e54eb96 | 670 | ncp_lock_server(server); |
1da177e4 LT |
671 | if (options & 2) |
672 | server->sign_wanted = 1; | |
2e54eb96 | 673 | ncp_unlock_server(server); |
1da177e4 LT |
674 | } |
675 | else | |
676 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ | |
677 | if (ncp_negotiate_buffersize(server, default_bufsize, | |
678 | &(server->buffer_size)) != 0) | |
679 | goto out_disconnect; | |
680 | DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); | |
681 | ||
682 | memset(&finfo, 0, sizeof(finfo)); | |
683 | finfo.i.attributes = aDIR; | |
684 | finfo.i.dataStreamSize = 0; /* ignored */ | |
685 | finfo.i.dirEntNum = 0; | |
686 | finfo.i.DosDirNum = 0; | |
687 | #ifdef CONFIG_NCPFS_SMALLDOS | |
688 | finfo.i.NSCreator = NW_NS_DOS; | |
689 | #endif | |
690 | finfo.volume = NCP_NUMBER_OF_VOLUMES; | |
691 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ | |
692 | finfo.i.creationTime = finfo.i.modifyTime | |
693 | = cpu_to_le16(0x0000); | |
694 | finfo.i.creationDate = finfo.i.modifyDate | |
695 | = finfo.i.lastAccessDate | |
696 | = cpu_to_le16(0x0C21); | |
697 | finfo.i.nameLen = 0; | |
698 | finfo.i.entryName[0] = '\0'; | |
699 | ||
700 | finfo.opened = 0; | |
701 | finfo.ino = 2; /* tradition */ | |
702 | ||
703 | server->name_space[finfo.volume] = NW_NS_DOS; | |
704 | ||
705 | error = -ENOMEM; | |
706 | root_inode = ncp_iget(sb, &finfo); | |
707 | if (!root_inode) | |
708 | goto out_disconnect; | |
709 | DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); | |
710 | sb->s_root = d_alloc_root(root_inode); | |
711 | if (!sb->s_root) | |
712 | goto out_no_root; | |
713 | sb->s_root->d_op = &ncp_root_dentry_operations; | |
714 | return 0; | |
715 | ||
716 | out_no_root: | |
717 | iput(root_inode); | |
718 | out_disconnect: | |
719 | ncp_lock_server(server); | |
720 | ncp_disconnect(server); | |
721 | ncp_unlock_server(server); | |
c5f93cf1 | 722 | out_rxbuf: |
1da177e4 | 723 | ncp_stop_tasks(server); |
c5f93cf1 PO |
724 | vfree(server->rxbuf); |
725 | out_txbuf: | |
726 | vfree(server->txbuf); | |
727 | out_packet: | |
1da177e4 LT |
728 | vfree(server->packet); |
729 | out_nls: | |
730 | #ifdef CONFIG_NCPFS_NLS | |
731 | unload_nls(server->nls_io); | |
732 | unload_nls(server->nls_vol); | |
733 | #endif | |
2e54eb96 PV |
734 | mutex_destroy(&server->rcv.creq_mutex); |
735 | mutex_destroy(&server->root_setup_lock); | |
736 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
737 | out_fput2: |
738 | if (server->info_filp) | |
739 | fput(server->info_filp); | |
740 | out_fput: | |
f1970c73 JA |
741 | bdi_destroy(&server->bdi); |
742 | out_bdi: | |
1da177e4 LT |
743 | /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: |
744 | * | |
e956b4b7 MW |
745 | * The previously used put_filp(ncp_filp); was bogus, since |
746 | * it doesn't perform proper unlocking. | |
1da177e4 LT |
747 | */ |
748 | fput(ncp_filp); | |
749 | out: | |
1de24126 | 750 | put_pid(data.wdog_pid); |
1da177e4 LT |
751 | sb->s_fs_info = NULL; |
752 | kfree(server); | |
753 | return error; | |
754 | } | |
755 | ||
756 | static void ncp_put_super(struct super_block *sb) | |
757 | { | |
758 | struct ncp_server *server = NCP_SBP(sb); | |
759 | ||
760 | ncp_lock_server(server); | |
761 | ncp_disconnect(server); | |
762 | ncp_unlock_server(server); | |
763 | ||
764 | ncp_stop_tasks(server); | |
765 | ||
766 | #ifdef CONFIG_NCPFS_NLS | |
767 | /* unload the NLS charsets */ | |
6d729e44 TG |
768 | unload_nls(server->nls_vol); |
769 | unload_nls(server->nls_io); | |
1da177e4 | 770 | #endif /* CONFIG_NCPFS_NLS */ |
2e54eb96 PV |
771 | mutex_destroy(&server->rcv.creq_mutex); |
772 | mutex_destroy(&server->root_setup_lock); | |
773 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
774 | |
775 | if (server->info_filp) | |
776 | fput(server->info_filp); | |
777 | fput(server->ncp_filp); | |
2154227a EB |
778 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
779 | put_pid(server->m.wdog_pid); | |
1da177e4 | 780 | |
f1970c73 | 781 | bdi_destroy(&server->bdi); |
44db77f3 PE |
782 | kfree(server->priv.data); |
783 | kfree(server->auth.object_name); | |
c5f93cf1 PO |
784 | vfree(server->rxbuf); |
785 | vfree(server->txbuf); | |
1da177e4 LT |
786 | vfree(server->packet); |
787 | sb->s_fs_info = NULL; | |
788 | kfree(server); | |
789 | } | |
790 | ||
726c3342 | 791 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 LT |
792 | { |
793 | struct dentry* d; | |
794 | struct inode* i; | |
795 | struct ncp_inode_info* ni; | |
796 | struct ncp_server* s; | |
797 | struct ncp_volume_info vi; | |
726c3342 | 798 | struct super_block *sb = dentry->d_sb; |
1da177e4 LT |
799 | int err; |
800 | __u8 dh; | |
801 | ||
802 | d = sb->s_root; | |
803 | if (!d) { | |
804 | goto dflt; | |
805 | } | |
806 | i = d->d_inode; | |
807 | if (!i) { | |
808 | goto dflt; | |
809 | } | |
810 | ni = NCP_FINFO(i); | |
811 | if (!ni) { | |
812 | goto dflt; | |
813 | } | |
814 | s = NCP_SBP(sb); | |
815 | if (!s) { | |
816 | goto dflt; | |
817 | } | |
818 | if (!s->m.mounted_vol[0]) { | |
819 | goto dflt; | |
820 | } | |
821 | ||
822 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); | |
823 | if (err) { | |
824 | goto dflt; | |
825 | } | |
826 | err = ncp_get_directory_info(s, dh, &vi); | |
827 | ncp_dirhandle_free(s, dh); | |
828 | if (err) { | |
829 | goto dflt; | |
830 | } | |
831 | buf->f_type = NCP_SUPER_MAGIC; | |
832 | buf->f_bsize = vi.sectors_per_block * 512; | |
833 | buf->f_blocks = vi.total_blocks; | |
834 | buf->f_bfree = vi.free_blocks; | |
835 | buf->f_bavail = vi.free_blocks; | |
836 | buf->f_files = vi.total_dir_entries; | |
837 | buf->f_ffree = vi.available_dir_entries; | |
838 | buf->f_namelen = 12; | |
839 | return 0; | |
840 | ||
841 | /* We cannot say how much disk space is left on a mounted | |
842 | NetWare Server, because free space is distributed over | |
843 | volumes, and the current user might have disk quotas. So | |
844 | free space is not that simple to determine. Our decision | |
845 | here is to err conservatively. */ | |
846 | ||
847 | dflt:; | |
848 | buf->f_type = NCP_SUPER_MAGIC; | |
849 | buf->f_bsize = NCP_BLOCK_SIZE; | |
850 | buf->f_blocks = 0; | |
851 | buf->f_bfree = 0; | |
852 | buf->f_bavail = 0; | |
853 | buf->f_namelen = 12; | |
854 | return 0; | |
855 | } | |
856 | ||
857 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) | |
858 | { | |
859 | struct inode *inode = dentry->d_inode; | |
860 | int result = 0; | |
861 | __le32 info_mask; | |
862 | struct nw_modify_dos_info info; | |
863 | struct ncp_server *server; | |
864 | ||
865 | result = -EIO; | |
866 | ||
1da177e4 | 867 | server = NCP_SERVER(inode); |
2e54eb96 | 868 | if (!server) /* How this could happen? */ |
1da177e4 LT |
869 | goto out; |
870 | ||
871 | /* ageing the dentry to force validation */ | |
872 | ncp_age_dentry(server, dentry); | |
873 | ||
874 | result = inode_change_ok(inode, attr); | |
875 | if (result < 0) | |
876 | goto out; | |
877 | ||
878 | result = -EPERM; | |
879 | if (((attr->ia_valid & ATTR_UID) && | |
880 | (attr->ia_uid != server->m.uid))) | |
881 | goto out; | |
882 | ||
883 | if (((attr->ia_valid & ATTR_GID) && | |
884 | (attr->ia_gid != server->m.gid))) | |
885 | goto out; | |
886 | ||
887 | if (((attr->ia_valid & ATTR_MODE) && | |
888 | (attr->ia_mode & | |
889 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) | |
890 | goto out; | |
891 | ||
892 | info_mask = 0; | |
893 | memset(&info, 0, sizeof(info)); | |
894 | ||
895 | #if 1 | |
896 | if ((attr->ia_valid & ATTR_MODE) != 0) | |
897 | { | |
898 | umode_t newmode = attr->ia_mode; | |
899 | ||
900 | info_mask |= DM_ATTRIBUTES; | |
901 | ||
902 | if (S_ISDIR(inode->i_mode)) { | |
903 | newmode &= server->m.dir_mode; | |
904 | } else { | |
905 | #ifdef CONFIG_NCPFS_EXTRAS | |
906 | if (server->m.flags & NCP_MOUNT_EXTRAS) { | |
907 | /* any non-default execute bit set */ | |
908 | if (newmode & ~server->m.file_mode & S_IXUGO) | |
909 | info.attributes |= aSHARED | aSYSTEM; | |
910 | /* read for group/world and not in default file_mode */ | |
911 | else if (newmode & ~server->m.file_mode & S_IRUGO) | |
912 | info.attributes |= aSHARED; | |
913 | } else | |
914 | #endif | |
915 | newmode &= server->m.file_mode; | |
916 | } | |
917 | if (newmode & S_IWUGO) | |
918 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
919 | else | |
920 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
921 | ||
922 | #ifdef CONFIG_NCPFS_NFS_NS | |
923 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { | |
924 | result = ncp_modify_nfs_info(server, | |
925 | NCP_FINFO(inode)->volNumber, | |
926 | NCP_FINFO(inode)->dirEntNum, | |
927 | attr->ia_mode, 0); | |
928 | if (result != 0) | |
929 | goto out; | |
930 | info.attributes &= ~(aSHARED | aSYSTEM); | |
931 | { | |
932 | /* mark partial success */ | |
933 | struct iattr tmpattr; | |
934 | ||
935 | tmpattr.ia_valid = ATTR_MODE; | |
936 | tmpattr.ia_mode = attr->ia_mode; | |
937 | ||
1025774c CH |
938 | setattr_copy(inode, &tmpattr); |
939 | mark_inode_dirty(inode); | |
1da177e4 LT |
940 | } |
941 | } | |
942 | #endif | |
943 | } | |
944 | #endif | |
945 | ||
946 | /* Do SIZE before attributes, otherwise mtime together with size does not work... | |
947 | */ | |
948 | if ((attr->ia_valid & ATTR_SIZE) != 0) { | |
949 | int written; | |
950 | ||
951 | DPRINTK("ncpfs: trying to change size to %ld\n", | |
952 | attr->ia_size); | |
953 | ||
954 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { | |
955 | result = -EACCES; | |
956 | goto out; | |
957 | } | |
958 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, | |
959 | attr->ia_size, 0, "", &written); | |
960 | ||
961 | /* According to ndir, the changes only take effect after | |
962 | closing the file */ | |
963 | ncp_inode_close(inode); | |
964 | result = ncp_make_closed(inode); | |
965 | if (result) | |
966 | goto out; | |
1025774c CH |
967 | |
968 | if (attr->ia_size != i_size_read(inode)) { | |
969 | result = vmtruncate(inode, attr->ia_size); | |
1da177e4 LT |
970 | if (result) |
971 | goto out; | |
1025774c | 972 | mark_inode_dirty(inode); |
1da177e4 LT |
973 | } |
974 | } | |
975 | if ((attr->ia_valid & ATTR_CTIME) != 0) { | |
976 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); | |
977 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, | |
978 | &info.creationTime, &info.creationDate); | |
979 | } | |
980 | if ((attr->ia_valid & ATTR_MTIME) != 0) { | |
981 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); | |
982 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, | |
983 | &info.modifyTime, &info.modifyDate); | |
984 | } | |
985 | if ((attr->ia_valid & ATTR_ATIME) != 0) { | |
986 | __le16 dummy; | |
987 | info_mask |= (DM_LAST_ACCESS_DATE); | |
988 | ncp_date_unix2dos(attr->ia_atime.tv_sec, | |
989 | &dummy, &info.lastAccessDate); | |
990 | } | |
991 | if (info_mask != 0) { | |
992 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), | |
993 | inode, info_mask, &info); | |
994 | if (result != 0) { | |
1da177e4 LT |
995 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { |
996 | /* NetWare seems not to allow this. I | |
997 | do not know why. So, just tell the | |
998 | user everything went fine. This is | |
999 | a terrible hack, but I do not know | |
1000 | how to do this correctly. */ | |
1001 | result = 0; | |
1002 | } else | |
1003 | goto out; | |
1004 | } | |
1005 | #ifdef CONFIG_NCPFS_STRONG | |
1006 | if ((!result) && (info_mask & DM_ATTRIBUTES)) | |
1007 | NCP_FINFO(inode)->nwattr = info.attributes; | |
1008 | #endif | |
1009 | } | |
1025774c CH |
1010 | if (result) |
1011 | goto out; | |
1012 | ||
1013 | setattr_copy(inode, attr); | |
1014 | mark_inode_dirty(inode); | |
1015 | ||
1da177e4 | 1016 | out: |
2e54eb96 PV |
1017 | if (result > 0) |
1018 | result = -EACCES; | |
1da177e4 LT |
1019 | return result; |
1020 | } | |
1021 | ||
3c26ff6e AV |
1022 | static struct dentry *ncp_mount(struct file_system_type *fs_type, |
1023 | int flags, const char *dev_name, void *data) | |
1da177e4 | 1024 | { |
3c26ff6e | 1025 | return mount_nodev(fs_type, flags, data, ncp_fill_super); |
1da177e4 LT |
1026 | } |
1027 | ||
1028 | static struct file_system_type ncp_fs_type = { | |
1029 | .owner = THIS_MODULE, | |
1030 | .name = "ncpfs", | |
3c26ff6e | 1031 | .mount = ncp_mount, |
1da177e4 | 1032 | .kill_sb = kill_anon_super, |
564cd138 | 1033 | .fs_flags = FS_BINARY_MOUNTDATA, |
1da177e4 LT |
1034 | }; |
1035 | ||
1036 | static int __init init_ncp_fs(void) | |
1037 | { | |
1038 | int err; | |
7c28cbae | 1039 | DPRINTK("ncpfs: init_ncp_fs called\n"); |
1da177e4 | 1040 | |
1da177e4 LT |
1041 | err = init_inodecache(); |
1042 | if (err) | |
1043 | goto out1; | |
1044 | err = register_filesystem(&ncp_fs_type); | |
1045 | if (err) | |
1046 | goto out; | |
1047 | return 0; | |
1048 | out: | |
1049 | destroy_inodecache(); | |
1050 | out1: | |
1051 | return err; | |
1052 | } | |
1053 | ||
1054 | static void __exit exit_ncp_fs(void) | |
1055 | { | |
7c28cbae | 1056 | DPRINTK("ncpfs: exit_ncp_fs called\n"); |
1da177e4 LT |
1057 | unregister_filesystem(&ncp_fs_type); |
1058 | destroy_inodecache(); | |
1da177e4 LT |
1059 | } |
1060 | ||
1061 | module_init(init_ncp_fs) | |
1062 | module_exit(exit_ncp_fs) | |
1063 | MODULE_LICENSE("GPL"); |