Commit | Line | Data |
---|---|---|
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 | ||
1da177e4 LT |
14 | #include <asm/uaccess.h> |
15 | #include <asm/byteorder.h> | |
16 | ||
17 | #include <linux/time.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/mm.h> | |
20 | #include <linux/string.h> | |
21 | #include <linux/stat.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/file.h> | |
24 | #include <linux/fcntl.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/vmalloc.h> | |
27 | #include <linux/init.h> | |
1da177e4 | 28 | #include <linux/vfs.h> |
564cd138 MS |
29 | #include <linux/mount.h> |
30 | #include <linux/seq_file.h> | |
34286d66 | 31 | #include <linux/namei.h> |
1da177e4 | 32 | |
1da177e4 LT |
33 | #include <net/sock.h> |
34 | ||
32c419d9 | 35 | #include "ncp_fs.h" |
1da177e4 LT |
36 | #include "getopt.h" |
37 | ||
564cd138 MS |
38 | #define NCP_DEFAULT_FILE_MODE 0600 |
39 | #define NCP_DEFAULT_DIR_MODE 0700 | |
40 | #define NCP_DEFAULT_TIME_OUT 10 | |
41 | #define NCP_DEFAULT_RETRY_COUNT 20 | |
42 | ||
94ee8494 | 43 | static void ncp_evict_inode(struct inode *); |
1da177e4 | 44 | static void ncp_put_super(struct super_block *); |
726c3342 | 45 | static int ncp_statfs(struct dentry *, struct kstatfs *); |
34c80b1d | 46 | static int ncp_show_options(struct seq_file *, struct dentry *); |
1da177e4 | 47 | |
e18b890b | 48 | static struct kmem_cache * ncp_inode_cachep; |
1da177e4 LT |
49 | |
50 | static struct inode *ncp_alloc_inode(struct super_block *sb) | |
51 | { | |
52 | struct ncp_inode_info *ei; | |
e94b1766 | 53 | ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); |
1da177e4 LT |
54 | if (!ei) |
55 | return NULL; | |
56 | return &ei->vfs_inode; | |
57 | } | |
58 | ||
fa0d7e3d | 59 | static void ncp_i_callback(struct rcu_head *head) |
1da177e4 | 60 | { |
fa0d7e3d | 61 | struct inode *inode = container_of(head, struct inode, i_rcu); |
1da177e4 LT |
62 | kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode)); |
63 | } | |
64 | ||
fa0d7e3d NP |
65 | static void ncp_destroy_inode(struct inode *inode) |
66 | { | |
67 | call_rcu(&inode->i_rcu, ncp_i_callback); | |
68 | } | |
69 | ||
51cc5068 | 70 | static void init_once(void *foo) |
1da177e4 LT |
71 | { |
72 | struct ncp_inode_info *ei = (struct ncp_inode_info *) foo; | |
73 | ||
a35afb83 CL |
74 | mutex_init(&ei->open_mutex); |
75 | inode_init_once(&ei->vfs_inode); | |
1da177e4 | 76 | } |
20c2df83 | 77 | |
1da177e4 LT |
78 | static int init_inodecache(void) |
79 | { | |
80 | ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", | |
81 | sizeof(struct ncp_inode_info), | |
fffb60f9 PJ |
82 | 0, (SLAB_RECLAIM_ACCOUNT| |
83 | SLAB_MEM_SPREAD), | |
20c2df83 | 84 | init_once); |
1da177e4 LT |
85 | if (ncp_inode_cachep == NULL) |
86 | return -ENOMEM; | |
87 | return 0; | |
88 | } | |
89 | ||
90 | static void destroy_inodecache(void) | |
91 | { | |
1a1d92c1 | 92 | kmem_cache_destroy(ncp_inode_cachep); |
1da177e4 LT |
93 | } |
94 | ||
95 | static int ncp_remount(struct super_block *sb, int *flags, char* data) | |
96 | { | |
97 | *flags |= MS_NODIRATIME; | |
98 | return 0; | |
99 | } | |
100 | ||
ee9b6d61 | 101 | static const struct super_operations ncp_sops = |
1da177e4 LT |
102 | { |
103 | .alloc_inode = ncp_alloc_inode, | |
104 | .destroy_inode = ncp_destroy_inode, | |
105 | .drop_inode = generic_delete_inode, | |
94ee8494 | 106 | .evict_inode = ncp_evict_inode, |
1da177e4 LT |
107 | .put_super = ncp_put_super, |
108 | .statfs = ncp_statfs, | |
109 | .remount_fs = ncp_remount, | |
564cd138 | 110 | .show_options = ncp_show_options, |
1da177e4 LT |
111 | }; |
112 | ||
1da177e4 LT |
113 | /* |
114 | * Fill in the ncpfs-specific information in the inode. | |
115 | */ | |
116 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) | |
117 | { | |
118 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; | |
119 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; | |
120 | NCP_FINFO(inode)->volNumber = nwinfo->volume; | |
121 | } | |
122 | ||
123 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) | |
124 | { | |
125 | ncp_update_dirent(inode, nwinfo); | |
126 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
127 | NCP_FINFO(inode)->access = nwinfo->access; | |
128 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, | |
129 | sizeof(nwinfo->file_handle)); | |
130 | DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", | |
131 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, | |
132 | NCP_FINFO(inode)->dirEntNum); | |
133 | } | |
134 | ||
135 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) | |
136 | { | |
137 | /* NFS namespace mode overrides others if it's set. */ | |
138 | DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", | |
139 | nwi->entryName, nwi->nfs.mode); | |
140 | if (nwi->nfs.mode) { | |
141 | /* XXX Security? */ | |
142 | inode->i_mode = nwi->nfs.mode; | |
143 | } | |
144 | ||
2e54eb96 | 145 | inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
1da177e4 LT |
146 | |
147 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); | |
148 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); | |
149 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); | |
150 | inode->i_atime.tv_nsec = 0; | |
151 | inode->i_mtime.tv_nsec = 0; | |
152 | inode->i_ctime.tv_nsec = 0; | |
153 | } | |
154 | ||
155 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) | |
156 | { | |
157 | struct nw_info_struct *nwi = &nwinfo->i; | |
158 | struct ncp_server *server = NCP_SERVER(inode); | |
159 | ||
160 | if (nwi->attributes & aDIR) { | |
161 | inode->i_mode = server->m.dir_mode; | |
162 | /* for directories dataStreamSize seems to be some | |
163 | Object ID ??? */ | |
2e54eb96 | 164 | i_size_write(inode, NCP_BLOCK_SIZE); |
1da177e4 | 165 | } else { |
2e54eb96 PV |
166 | u32 size; |
167 | ||
1da177e4 | 168 | inode->i_mode = server->m.file_mode; |
2e54eb96 PV |
169 | size = le32_to_cpu(nwi->dataStreamSize); |
170 | i_size_write(inode, size); | |
1da177e4 LT |
171 | #ifdef CONFIG_NCPFS_EXTRAS |
172 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) | |
173 | && (nwi->attributes & aSHARED)) { | |
174 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { | |
175 | case aHIDDEN: | |
176 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { | |
2e54eb96 PV |
177 | if (/* (size >= NCP_MIN_SYMLINK_SIZE) |
178 | && */ (size <= NCP_MAX_SYMLINK_SIZE)) { | |
1da177e4 LT |
179 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
180 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; | |
181 | break; | |
182 | } | |
183 | } | |
184 | /* FALLTHROUGH */ | |
185 | case 0: | |
186 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
187 | inode->i_mode |= S_IRUGO; | |
188 | break; | |
189 | case aSYSTEM: | |
190 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
191 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; | |
192 | break; | |
193 | /* case aSYSTEM|aHIDDEN: */ | |
194 | default: | |
195 | /* reserved combination */ | |
196 | break; | |
197 | } | |
198 | } | |
199 | #endif | |
200 | } | |
201 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; | |
202 | } | |
203 | ||
204 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) | |
205 | { | |
206 | NCP_FINFO(inode)->flags = 0; | |
207 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { | |
208 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
209 | ncp_update_attrs(inode, nwinfo); | |
210 | } | |
211 | ||
212 | ncp_update_dates(inode, &nwinfo->i); | |
213 | ncp_update_dirent(inode, nwinfo); | |
214 | } | |
215 | ||
216 | /* | |
2e54eb96 | 217 | * Fill in the inode based on the ncp_entry_info structure. Used only for brand new inodes. |
1da177e4 LT |
218 | */ |
219 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) | |
220 | { | |
221 | struct ncp_server *server = NCP_SERVER(inode); | |
222 | ||
223 | NCP_FINFO(inode)->flags = 0; | |
224 | ||
225 | ncp_update_attrs(inode, nwinfo); | |
226 | ||
227 | DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); | |
228 | ||
bfe86848 | 229 | set_nlink(inode, 1); |
1da177e4 LT |
230 | inode->i_uid = server->m.uid; |
231 | inode->i_gid = server->m.gid; | |
1da177e4 LT |
232 | |
233 | ncp_update_dates(inode, &nwinfo->i); | |
234 | ncp_update_inode(inode, nwinfo); | |
235 | } | |
236 | ||
237 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
92e1d5be | 238 | static const struct inode_operations ncp_symlink_inode_operations = { |
1da177e4 LT |
239 | .readlink = generic_readlink, |
240 | .follow_link = page_follow_link_light, | |
241 | .put_link = page_put_link, | |
242 | .setattr = ncp_notify_change, | |
243 | }; | |
244 | #endif | |
245 | ||
246 | /* | |
247 | * Get a new inode. | |
248 | */ | |
249 | struct inode * | |
250 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) | |
251 | { | |
252 | struct inode *inode; | |
253 | ||
254 | if (info == NULL) { | |
255 | printk(KERN_ERR "ncp_iget: info is NULL\n"); | |
256 | return NULL; | |
257 | } | |
258 | ||
259 | inode = new_inode(sb); | |
260 | if (inode) { | |
261 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); | |
262 | ||
2e54eb96 | 263 | inode->i_mapping->backing_dev_info = sb->s_bdi; |
1da177e4 LT |
264 | inode->i_ino = info->ino; |
265 | ncp_set_attr(inode, info); | |
266 | if (S_ISREG(inode->i_mode)) { | |
267 | inode->i_op = &ncp_file_inode_operations; | |
268 | inode->i_fop = &ncp_file_operations; | |
269 | } else if (S_ISDIR(inode->i_mode)) { | |
270 | inode->i_op = &ncp_dir_inode_operations; | |
271 | inode->i_fop = &ncp_dir_operations; | |
272 | #ifdef CONFIG_NCPFS_NFS_NS | |
273 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
274 | init_special_inode(inode, inode->i_mode, | |
275 | new_decode_dev(info->i.nfs.rdev)); | |
276 | #endif | |
277 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
278 | } else if (S_ISLNK(inode->i_mode)) { | |
279 | inode->i_op = &ncp_symlink_inode_operations; | |
280 | inode->i_data.a_ops = &ncp_symlink_aops; | |
281 | #endif | |
282 | } else { | |
283 | make_bad_inode(inode); | |
284 | } | |
285 | insert_inode_hash(inode); | |
286 | } else | |
287 | printk(KERN_ERR "ncp_iget: iget failed!\n"); | |
288 | return inode; | |
289 | } | |
290 | ||
291 | static void | |
94ee8494 | 292 | ncp_evict_inode(struct inode *inode) |
1da177e4 | 293 | { |
fef26658 | 294 | truncate_inode_pages(&inode->i_data, 0); |
dbd5768f | 295 | clear_inode(inode); |
fef26658 | 296 | |
1da177e4 | 297 | if (S_ISDIR(inode->i_mode)) { |
94ee8494 | 298 | DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino); |
1da177e4 LT |
299 | } |
300 | ||
301 | if (ncp_make_closed(inode) != 0) { | |
302 | /* We can't do anything but complain. */ | |
94ee8494 | 303 | printk(KERN_ERR "ncp_evict_inode: could not close\n"); |
1da177e4 | 304 | } |
1da177e4 LT |
305 | } |
306 | ||
307 | static void ncp_stop_tasks(struct ncp_server *server) { | |
308 | struct sock* sk = server->ncp_sock->sk; | |
2a4df5d3 PV |
309 | |
310 | lock_sock(sk); | |
1da177e4 LT |
311 | sk->sk_error_report = server->error_report; |
312 | sk->sk_data_ready = server->data_ready; | |
313 | sk->sk_write_space = server->write_space; | |
2a4df5d3 | 314 | release_sock(sk); |
1da177e4 | 315 | del_timer_sync(&server->timeout_tm); |
5d8e4bdd TH |
316 | |
317 | flush_work_sync(&server->rcv.tq); | |
318 | if (sk->sk_socket->type == SOCK_STREAM) | |
319 | flush_work_sync(&server->tx.tq); | |
320 | else | |
321 | flush_work_sync(&server->timeout_tq); | |
1da177e4 LT |
322 | } |
323 | ||
34c80b1d | 324 | static int ncp_show_options(struct seq_file *seq, struct dentry *root) |
564cd138 | 325 | { |
34c80b1d | 326 | struct ncp_server *server = NCP_SBP(root->d_sb); |
564cd138 MS |
327 | unsigned int tmp; |
328 | ||
329 | if (server->m.uid != 0) | |
330 | seq_printf(seq, ",uid=%u", server->m.uid); | |
331 | if (server->m.gid != 0) | |
332 | seq_printf(seq, ",gid=%u", server->m.gid); | |
333 | if (server->m.mounted_uid != 0) | |
334 | seq_printf(seq, ",owner=%u", server->m.mounted_uid); | |
335 | tmp = server->m.file_mode & S_IALLUGO; | |
336 | if (tmp != NCP_DEFAULT_FILE_MODE) | |
337 | seq_printf(seq, ",mode=0%o", tmp); | |
338 | tmp = server->m.dir_mode & S_IALLUGO; | |
339 | if (tmp != NCP_DEFAULT_DIR_MODE) | |
340 | seq_printf(seq, ",dirmode=0%o", tmp); | |
341 | if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) { | |
342 | tmp = server->m.time_out * 100 / HZ; | |
343 | seq_printf(seq, ",timeout=%u", tmp); | |
344 | } | |
345 | if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT) | |
346 | seq_printf(seq, ",retry=%u", server->m.retry_count); | |
347 | if (server->m.flags != 0) | |
348 | seq_printf(seq, ",flags=%lu", server->m.flags); | |
349 | if (server->m.wdog_pid != NULL) | |
350 | seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid)); | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
1da177e4 LT |
355 | static const struct ncp_option ncp_opts[] = { |
356 | { "uid", OPT_INT, 'u' }, | |
357 | { "gid", OPT_INT, 'g' }, | |
358 | { "owner", OPT_INT, 'o' }, | |
359 | { "mode", OPT_INT, 'm' }, | |
360 | { "dirmode", OPT_INT, 'd' }, | |
361 | { "timeout", OPT_INT, 't' }, | |
362 | { "retry", OPT_INT, 'r' }, | |
363 | { "flags", OPT_INT, 'f' }, | |
364 | { "wdogpid", OPT_INT, 'w' }, | |
365 | { "ncpfd", OPT_INT, 'n' }, | |
366 | { "infofd", OPT_INT, 'i' }, /* v5 */ | |
367 | { "version", OPT_INT, 'v' }, | |
368 | { NULL, 0, 0 } }; | |
369 | ||
370 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { | |
371 | int optval; | |
372 | char *optarg; | |
373 | unsigned long optint; | |
374 | int version = 0; | |
1de24126 | 375 | int ret; |
1da177e4 LT |
376 | |
377 | data->flags = 0; | |
378 | data->int_flags = 0; | |
379 | data->mounted_uid = 0; | |
2154227a | 380 | data->wdog_pid = NULL; |
1da177e4 | 381 | data->ncp_fd = ~0; |
564cd138 MS |
382 | data->time_out = NCP_DEFAULT_TIME_OUT; |
383 | data->retry_count = NCP_DEFAULT_RETRY_COUNT; | |
1da177e4 LT |
384 | data->uid = 0; |
385 | data->gid = 0; | |
564cd138 MS |
386 | data->file_mode = NCP_DEFAULT_FILE_MODE; |
387 | data->dir_mode = NCP_DEFAULT_DIR_MODE; | |
1da177e4 LT |
388 | data->info_fd = -1; |
389 | data->mounted_vol[0] = 0; | |
390 | ||
391 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { | |
1de24126 EB |
392 | ret = optval; |
393 | if (ret < 0) | |
394 | goto err; | |
1da177e4 LT |
395 | switch (optval) { |
396 | case 'u': | |
397 | data->uid = optint; | |
398 | break; | |
399 | case 'g': | |
400 | data->gid = optint; | |
401 | break; | |
402 | case 'o': | |
403 | data->mounted_uid = optint; | |
404 | break; | |
405 | case 'm': | |
406 | data->file_mode = optint; | |
407 | break; | |
408 | case 'd': | |
409 | data->dir_mode = optint; | |
410 | break; | |
411 | case 't': | |
412 | data->time_out = optint; | |
413 | break; | |
414 | case 'r': | |
415 | data->retry_count = optint; | |
416 | break; | |
417 | case 'f': | |
418 | data->flags = optint; | |
419 | break; | |
420 | case 'w': | |
2154227a | 421 | data->wdog_pid = find_get_pid(optint); |
1da177e4 LT |
422 | break; |
423 | case 'n': | |
424 | data->ncp_fd = optint; | |
425 | break; | |
426 | case 'i': | |
427 | data->info_fd = optint; | |
428 | break; | |
429 | case 'v': | |
1de24126 EB |
430 | ret = -ECHRNG; |
431 | if (optint < NCP_MOUNT_VERSION_V4) | |
432 | goto err; | |
433 | if (optint > NCP_MOUNT_VERSION_V5) | |
434 | goto err; | |
1da177e4 LT |
435 | version = optint; |
436 | break; | |
437 | ||
438 | } | |
439 | } | |
440 | return 0; | |
1de24126 EB |
441 | err: |
442 | put_pid(data->wdog_pid); | |
443 | data->wdog_pid = NULL; | |
444 | return ret; | |
1da177e4 LT |
445 | } |
446 | ||
447 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) | |
448 | { | |
449 | struct ncp_mount_data_kernel data; | |
450 | struct ncp_server *server; | |
451 | struct file *ncp_filp; | |
452 | struct inode *root_inode; | |
453 | struct inode *sock_inode; | |
454 | struct socket *sock; | |
455 | int error; | |
456 | int default_bufsize; | |
457 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
458 | int options; | |
459 | #endif | |
460 | struct ncp_entry_info finfo; | |
461 | ||
2a5cac17 | 462 | memset(&data, 0, sizeof(data)); |
f8314dc6 | 463 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
1da177e4 LT |
464 | if (!server) |
465 | return -ENOMEM; | |
466 | sb->s_fs_info = server; | |
1da177e4 LT |
467 | |
468 | error = -EFAULT; | |
469 | if (raw_data == NULL) | |
470 | goto out; | |
471 | switch (*(int*)raw_data) { | |
472 | case NCP_MOUNT_VERSION: | |
473 | { | |
474 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; | |
475 | ||
476 | data.flags = md->flags; | |
477 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; | |
478 | data.mounted_uid = md->mounted_uid; | |
2154227a | 479 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
480 | data.ncp_fd = md->ncp_fd; |
481 | data.time_out = md->time_out; | |
482 | data.retry_count = md->retry_count; | |
483 | data.uid = md->uid; | |
484 | data.gid = md->gid; | |
485 | data.file_mode = md->file_mode; | |
486 | data.dir_mode = md->dir_mode; | |
487 | data.info_fd = -1; | |
488 | memcpy(data.mounted_vol, md->mounted_vol, | |
489 | NCP_VOLNAME_LEN+1); | |
490 | } | |
491 | break; | |
492 | case NCP_MOUNT_VERSION_V4: | |
493 | { | |
494 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; | |
495 | ||
496 | data.flags = md->flags; | |
1da177e4 | 497 | data.mounted_uid = md->mounted_uid; |
2154227a | 498 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
499 | data.ncp_fd = md->ncp_fd; |
500 | data.time_out = md->time_out; | |
501 | data.retry_count = md->retry_count; | |
502 | data.uid = md->uid; | |
503 | data.gid = md->gid; | |
504 | data.file_mode = md->file_mode; | |
505 | data.dir_mode = md->dir_mode; | |
506 | data.info_fd = -1; | |
1da177e4 LT |
507 | } |
508 | break; | |
509 | default: | |
510 | error = -ECHRNG; | |
511 | if (memcmp(raw_data, "vers", 4) == 0) { | |
512 | error = ncp_parse_options(&data, raw_data); | |
513 | } | |
514 | if (error) | |
515 | goto out; | |
516 | break; | |
517 | } | |
518 | error = -EBADF; | |
519 | ncp_filp = fget(data.ncp_fd); | |
520 | if (!ncp_filp) | |
521 | goto out; | |
522 | error = -ENOTSOCK; | |
92e5baef | 523 | sock_inode = ncp_filp->f_path.dentry->d_inode; |
1da177e4 LT |
524 | if (!S_ISSOCK(sock_inode->i_mode)) |
525 | goto out_fput; | |
526 | sock = SOCKET_I(sock_inode); | |
527 | if (!sock) | |
528 | goto out_fput; | |
529 | ||
530 | if (sock->type == SOCK_STREAM) | |
531 | default_bufsize = 0xF000; | |
532 | else | |
533 | default_bufsize = 1024; | |
534 | ||
535 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ | |
536 | sb->s_maxbytes = 0xFFFFFFFFU; | |
537 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ | |
538 | sb->s_blocksize_bits = 10; | |
539 | sb->s_magic = NCP_SUPER_MAGIC; | |
540 | sb->s_op = &ncp_sops; | |
0378c405 | 541 | sb->s_d_op = &ncp_dentry_operations; |
f1970c73 | 542 | sb->s_bdi = &server->bdi; |
1da177e4 LT |
543 | |
544 | server = NCP_SBP(sb); | |
545 | memset(server, 0, sizeof(*server)); | |
546 | ||
f1970c73 JA |
547 | error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY); |
548 | if (error) | |
759c361e | 549 | goto out_fput; |
f1970c73 | 550 | |
1da177e4 LT |
551 | server->ncp_filp = ncp_filp; |
552 | server->ncp_sock = sock; | |
553 | ||
554 | if (data.info_fd != -1) { | |
555 | struct socket *info_sock; | |
556 | ||
557 | error = -EBADF; | |
558 | server->info_filp = fget(data.info_fd); | |
559 | if (!server->info_filp) | |
759c361e | 560 | goto out_bdi; |
1da177e4 | 561 | error = -ENOTSOCK; |
92e5baef | 562 | sock_inode = server->info_filp->f_path.dentry->d_inode; |
1da177e4 LT |
563 | if (!S_ISSOCK(sock_inode->i_mode)) |
564 | goto out_fput2; | |
565 | info_sock = SOCKET_I(sock_inode); | |
566 | if (!info_sock) | |
567 | goto out_fput2; | |
568 | error = -EBADFD; | |
569 | if (info_sock->type != SOCK_STREAM) | |
570 | goto out_fput2; | |
571 | server->info_sock = info_sock; | |
572 | } | |
573 | ||
574 | /* server->lock = 0; */ | |
8e3f9045 | 575 | mutex_init(&server->mutex); |
1da177e4 LT |
576 | server->packet = NULL; |
577 | /* server->buffer_size = 0; */ | |
578 | /* server->conn_status = 0; */ | |
579 | /* server->root_dentry = NULL; */ | |
580 | /* server->root_setuped = 0; */ | |
2e54eb96 | 581 | mutex_init(&server->root_setup_lock); |
1da177e4 LT |
582 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
583 | /* server->sign_wanted = 0; */ | |
584 | /* server->sign_active = 0; */ | |
585 | #endif | |
2e54eb96 | 586 | init_rwsem(&server->auth_rwsem); |
1da177e4 LT |
587 | server->auth.auth_type = NCP_AUTH_NONE; |
588 | /* server->auth.object_name_len = 0; */ | |
589 | /* server->auth.object_name = NULL; */ | |
590 | /* server->auth.object_type = 0; */ | |
591 | /* server->priv.len = 0; */ | |
592 | /* server->priv.data = NULL; */ | |
593 | ||
594 | server->m = data; | |
25985edc | 595 | /* Although anything producing this is buggy, it happens |
1da177e4 LT |
596 | now because of PATH_MAX changes.. */ |
597 | if (server->m.time_out < 1) { | |
598 | server->m.time_out = 10; | |
599 | printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); | |
600 | } | |
601 | server->m.time_out = server->m.time_out * HZ / 100; | |
602 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; | |
603 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; | |
604 | ||
605 | #ifdef CONFIG_NCPFS_NLS | |
606 | /* load the default NLS charsets */ | |
607 | server->nls_vol = load_nls_default(); | |
608 | server->nls_io = load_nls_default(); | |
609 | #endif /* CONFIG_NCPFS_NLS */ | |
610 | ||
2e54eb96 | 611 | atomic_set(&server->dentry_ttl, 0); /* no caching */ |
1da177e4 LT |
612 | |
613 | INIT_LIST_HEAD(&server->tx.requests); | |
8e3f9045 | 614 | mutex_init(&server->rcv.creq_mutex); |
1da177e4 LT |
615 | server->tx.creq = NULL; |
616 | server->rcv.creq = NULL; | |
1da177e4 LT |
617 | |
618 | init_timer(&server->timeout_tm); | |
619 | #undef NCP_PACKET_SIZE | |
620 | #define NCP_PACKET_SIZE 131072 | |
621 | error = -ENOMEM; | |
622 | server->packet_size = NCP_PACKET_SIZE; | |
623 | server->packet = vmalloc(NCP_PACKET_SIZE); | |
624 | if (server->packet == NULL) | |
625 | goto out_nls; | |
c5f93cf1 PO |
626 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
627 | if (server->txbuf == NULL) | |
628 | goto out_packet; | |
629 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); | |
630 | if (server->rxbuf == NULL) | |
631 | goto out_txbuf; | |
1da177e4 | 632 | |
2a4df5d3 PV |
633 | lock_sock(sock->sk); |
634 | server->data_ready = sock->sk->sk_data_ready; | |
635 | server->write_space = sock->sk->sk_write_space; | |
636 | server->error_report = sock->sk->sk_error_report; | |
637 | sock->sk->sk_user_data = server; | |
1da177e4 LT |
638 | sock->sk->sk_data_ready = ncp_tcp_data_ready; |
639 | sock->sk->sk_error_report = ncp_tcp_error_report; | |
640 | if (sock->type == SOCK_STREAM) { | |
641 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; | |
642 | server->rcv.len = 10; | |
643 | server->rcv.state = 0; | |
c4028958 DH |
644 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
645 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); | |
1da177e4 LT |
646 | sock->sk->sk_write_space = ncp_tcp_write_space; |
647 | } else { | |
c4028958 DH |
648 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
649 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); | |
1da177e4 LT |
650 | server->timeout_tm.data = (unsigned long)server; |
651 | server->timeout_tm.function = ncpdgram_timeout_call; | |
652 | } | |
2a4df5d3 | 653 | release_sock(sock->sk); |
1da177e4 LT |
654 | |
655 | ncp_lock_server(server); | |
656 | error = ncp_connect(server); | |
657 | ncp_unlock_server(server); | |
658 | if (error < 0) | |
c5f93cf1 | 659 | goto out_rxbuf; |
1da177e4 LT |
660 | DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
661 | ||
662 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ | |
663 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
664 | if (ncp_negotiate_size_and_options(server, default_bufsize, | |
665 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) | |
666 | { | |
667 | if (options != NCP_DEFAULT_OPTIONS) | |
668 | { | |
669 | if (ncp_negotiate_size_and_options(server, | |
670 | default_bufsize, | |
671 | options & 2, | |
672 | &(server->buffer_size), &options) != 0) | |
673 | ||
674 | { | |
675 | goto out_disconnect; | |
676 | } | |
677 | } | |
2e54eb96 | 678 | ncp_lock_server(server); |
1da177e4 LT |
679 | if (options & 2) |
680 | server->sign_wanted = 1; | |
2e54eb96 | 681 | ncp_unlock_server(server); |
1da177e4 LT |
682 | } |
683 | else | |
684 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ | |
685 | if (ncp_negotiate_buffersize(server, default_bufsize, | |
686 | &(server->buffer_size)) != 0) | |
687 | goto out_disconnect; | |
688 | DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); | |
689 | ||
690 | memset(&finfo, 0, sizeof(finfo)); | |
691 | finfo.i.attributes = aDIR; | |
692 | finfo.i.dataStreamSize = 0; /* ignored */ | |
693 | finfo.i.dirEntNum = 0; | |
694 | finfo.i.DosDirNum = 0; | |
695 | #ifdef CONFIG_NCPFS_SMALLDOS | |
696 | finfo.i.NSCreator = NW_NS_DOS; | |
697 | #endif | |
698 | finfo.volume = NCP_NUMBER_OF_VOLUMES; | |
699 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ | |
700 | finfo.i.creationTime = finfo.i.modifyTime | |
701 | = cpu_to_le16(0x0000); | |
702 | finfo.i.creationDate = finfo.i.modifyDate | |
703 | = finfo.i.lastAccessDate | |
704 | = cpu_to_le16(0x0C21); | |
705 | finfo.i.nameLen = 0; | |
706 | finfo.i.entryName[0] = '\0'; | |
707 | ||
708 | finfo.opened = 0; | |
709 | finfo.ino = 2; /* tradition */ | |
710 | ||
711 | server->name_space[finfo.volume] = NW_NS_DOS; | |
712 | ||
713 | error = -ENOMEM; | |
714 | root_inode = ncp_iget(sb, &finfo); | |
715 | if (!root_inode) | |
716 | goto out_disconnect; | |
717 | DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); | |
48fde701 | 718 | sb->s_root = d_make_root(root_inode); |
1da177e4 | 719 | if (!sb->s_root) |
48fde701 | 720 | goto out_disconnect; |
1da177e4 LT |
721 | return 0; |
722 | ||
1da177e4 LT |
723 | out_disconnect: |
724 | ncp_lock_server(server); | |
725 | ncp_disconnect(server); | |
726 | ncp_unlock_server(server); | |
c5f93cf1 | 727 | out_rxbuf: |
1da177e4 | 728 | ncp_stop_tasks(server); |
c5f93cf1 PO |
729 | vfree(server->rxbuf); |
730 | out_txbuf: | |
731 | vfree(server->txbuf); | |
732 | out_packet: | |
1da177e4 LT |
733 | vfree(server->packet); |
734 | out_nls: | |
735 | #ifdef CONFIG_NCPFS_NLS | |
736 | unload_nls(server->nls_io); | |
737 | unload_nls(server->nls_vol); | |
738 | #endif | |
2e54eb96 PV |
739 | mutex_destroy(&server->rcv.creq_mutex); |
740 | mutex_destroy(&server->root_setup_lock); | |
741 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
742 | out_fput2: |
743 | if (server->info_filp) | |
744 | fput(server->info_filp); | |
f1970c73 | 745 | out_bdi: |
759c361e DH |
746 | bdi_destroy(&server->bdi); |
747 | out_fput: | |
1da177e4 LT |
748 | /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: |
749 | * | |
e956b4b7 MW |
750 | * The previously used put_filp(ncp_filp); was bogus, since |
751 | * it doesn't perform proper unlocking. | |
1da177e4 LT |
752 | */ |
753 | fput(ncp_filp); | |
754 | out: | |
1de24126 | 755 | put_pid(data.wdog_pid); |
1da177e4 LT |
756 | sb->s_fs_info = NULL; |
757 | kfree(server); | |
758 | return error; | |
759 | } | |
760 | ||
761 | static void ncp_put_super(struct super_block *sb) | |
762 | { | |
763 | struct ncp_server *server = NCP_SBP(sb); | |
764 | ||
765 | ncp_lock_server(server); | |
766 | ncp_disconnect(server); | |
767 | ncp_unlock_server(server); | |
768 | ||
769 | ncp_stop_tasks(server); | |
770 | ||
771 | #ifdef CONFIG_NCPFS_NLS | |
772 | /* unload the NLS charsets */ | |
6d729e44 TG |
773 | unload_nls(server->nls_vol); |
774 | unload_nls(server->nls_io); | |
1da177e4 | 775 | #endif /* CONFIG_NCPFS_NLS */ |
2e54eb96 PV |
776 | mutex_destroy(&server->rcv.creq_mutex); |
777 | mutex_destroy(&server->root_setup_lock); | |
778 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
779 | |
780 | if (server->info_filp) | |
781 | fput(server->info_filp); | |
782 | fput(server->ncp_filp); | |
2154227a EB |
783 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
784 | put_pid(server->m.wdog_pid); | |
1da177e4 | 785 | |
f1970c73 | 786 | bdi_destroy(&server->bdi); |
44db77f3 PE |
787 | kfree(server->priv.data); |
788 | kfree(server->auth.object_name); | |
c5f93cf1 PO |
789 | vfree(server->rxbuf); |
790 | vfree(server->txbuf); | |
1da177e4 LT |
791 | vfree(server->packet); |
792 | sb->s_fs_info = NULL; | |
793 | kfree(server); | |
794 | } | |
795 | ||
726c3342 | 796 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 LT |
797 | { |
798 | struct dentry* d; | |
799 | struct inode* i; | |
800 | struct ncp_inode_info* ni; | |
801 | struct ncp_server* s; | |
802 | struct ncp_volume_info vi; | |
726c3342 | 803 | struct super_block *sb = dentry->d_sb; |
1da177e4 LT |
804 | int err; |
805 | __u8 dh; | |
806 | ||
807 | d = sb->s_root; | |
808 | if (!d) { | |
809 | goto dflt; | |
810 | } | |
811 | i = d->d_inode; | |
812 | if (!i) { | |
813 | goto dflt; | |
814 | } | |
815 | ni = NCP_FINFO(i); | |
816 | if (!ni) { | |
817 | goto dflt; | |
818 | } | |
819 | s = NCP_SBP(sb); | |
820 | if (!s) { | |
821 | goto dflt; | |
822 | } | |
823 | if (!s->m.mounted_vol[0]) { | |
824 | goto dflt; | |
825 | } | |
826 | ||
827 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); | |
828 | if (err) { | |
829 | goto dflt; | |
830 | } | |
831 | err = ncp_get_directory_info(s, dh, &vi); | |
832 | ncp_dirhandle_free(s, dh); | |
833 | if (err) { | |
834 | goto dflt; | |
835 | } | |
836 | buf->f_type = NCP_SUPER_MAGIC; | |
837 | buf->f_bsize = vi.sectors_per_block * 512; | |
838 | buf->f_blocks = vi.total_blocks; | |
839 | buf->f_bfree = vi.free_blocks; | |
840 | buf->f_bavail = vi.free_blocks; | |
841 | buf->f_files = vi.total_dir_entries; | |
842 | buf->f_ffree = vi.available_dir_entries; | |
843 | buf->f_namelen = 12; | |
844 | return 0; | |
845 | ||
846 | /* We cannot say how much disk space is left on a mounted | |
847 | NetWare Server, because free space is distributed over | |
848 | volumes, and the current user might have disk quotas. So | |
849 | free space is not that simple to determine. Our decision | |
850 | here is to err conservatively. */ | |
851 | ||
852 | dflt:; | |
853 | buf->f_type = NCP_SUPER_MAGIC; | |
854 | buf->f_bsize = NCP_BLOCK_SIZE; | |
855 | buf->f_blocks = 0; | |
856 | buf->f_bfree = 0; | |
857 | buf->f_bavail = 0; | |
858 | buf->f_namelen = 12; | |
859 | return 0; | |
860 | } | |
861 | ||
862 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) | |
863 | { | |
864 | struct inode *inode = dentry->d_inode; | |
865 | int result = 0; | |
866 | __le32 info_mask; | |
867 | struct nw_modify_dos_info info; | |
868 | struct ncp_server *server; | |
869 | ||
870 | result = -EIO; | |
871 | ||
1da177e4 | 872 | server = NCP_SERVER(inode); |
2e54eb96 | 873 | if (!server) /* How this could happen? */ |
1da177e4 LT |
874 | goto out; |
875 | ||
876 | /* ageing the dentry to force validation */ | |
877 | ncp_age_dentry(server, dentry); | |
878 | ||
879 | result = inode_change_ok(inode, attr); | |
880 | if (result < 0) | |
881 | goto out; | |
882 | ||
883 | result = -EPERM; | |
884 | if (((attr->ia_valid & ATTR_UID) && | |
885 | (attr->ia_uid != server->m.uid))) | |
886 | goto out; | |
887 | ||
888 | if (((attr->ia_valid & ATTR_GID) && | |
889 | (attr->ia_gid != server->m.gid))) | |
890 | goto out; | |
891 | ||
892 | if (((attr->ia_valid & ATTR_MODE) && | |
893 | (attr->ia_mode & | |
894 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) | |
895 | goto out; | |
896 | ||
897 | info_mask = 0; | |
898 | memset(&info, 0, sizeof(info)); | |
899 | ||
900 | #if 1 | |
901 | if ((attr->ia_valid & ATTR_MODE) != 0) | |
902 | { | |
903 | umode_t newmode = attr->ia_mode; | |
904 | ||
905 | info_mask |= DM_ATTRIBUTES; | |
906 | ||
907 | if (S_ISDIR(inode->i_mode)) { | |
908 | newmode &= server->m.dir_mode; | |
909 | } else { | |
910 | #ifdef CONFIG_NCPFS_EXTRAS | |
911 | if (server->m.flags & NCP_MOUNT_EXTRAS) { | |
912 | /* any non-default execute bit set */ | |
913 | if (newmode & ~server->m.file_mode & S_IXUGO) | |
914 | info.attributes |= aSHARED | aSYSTEM; | |
915 | /* read for group/world and not in default file_mode */ | |
916 | else if (newmode & ~server->m.file_mode & S_IRUGO) | |
917 | info.attributes |= aSHARED; | |
918 | } else | |
919 | #endif | |
920 | newmode &= server->m.file_mode; | |
921 | } | |
922 | if (newmode & S_IWUGO) | |
923 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
924 | else | |
925 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
926 | ||
927 | #ifdef CONFIG_NCPFS_NFS_NS | |
928 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { | |
929 | result = ncp_modify_nfs_info(server, | |
930 | NCP_FINFO(inode)->volNumber, | |
931 | NCP_FINFO(inode)->dirEntNum, | |
932 | attr->ia_mode, 0); | |
933 | if (result != 0) | |
934 | goto out; | |
935 | info.attributes &= ~(aSHARED | aSYSTEM); | |
936 | { | |
937 | /* mark partial success */ | |
938 | struct iattr tmpattr; | |
939 | ||
940 | tmpattr.ia_valid = ATTR_MODE; | |
941 | tmpattr.ia_mode = attr->ia_mode; | |
942 | ||
1025774c CH |
943 | setattr_copy(inode, &tmpattr); |
944 | mark_inode_dirty(inode); | |
1da177e4 LT |
945 | } |
946 | } | |
947 | #endif | |
948 | } | |
949 | #endif | |
950 | ||
951 | /* Do SIZE before attributes, otherwise mtime together with size does not work... | |
952 | */ | |
953 | if ((attr->ia_valid & ATTR_SIZE) != 0) { | |
954 | int written; | |
955 | ||
956 | DPRINTK("ncpfs: trying to change size to %ld\n", | |
957 | attr->ia_size); | |
958 | ||
959 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { | |
960 | result = -EACCES; | |
961 | goto out; | |
962 | } | |
963 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, | |
964 | attr->ia_size, 0, "", &written); | |
965 | ||
966 | /* According to ndir, the changes only take effect after | |
967 | closing the file */ | |
968 | ncp_inode_close(inode); | |
969 | result = ncp_make_closed(inode); | |
970 | if (result) | |
971 | goto out; | |
1025774c CH |
972 | |
973 | if (attr->ia_size != i_size_read(inode)) { | |
974 | result = vmtruncate(inode, attr->ia_size); | |
1da177e4 LT |
975 | if (result) |
976 | goto out; | |
1025774c | 977 | mark_inode_dirty(inode); |
1da177e4 LT |
978 | } |
979 | } | |
980 | if ((attr->ia_valid & ATTR_CTIME) != 0) { | |
981 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); | |
982 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, | |
983 | &info.creationTime, &info.creationDate); | |
984 | } | |
985 | if ((attr->ia_valid & ATTR_MTIME) != 0) { | |
986 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); | |
987 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, | |
988 | &info.modifyTime, &info.modifyDate); | |
989 | } | |
990 | if ((attr->ia_valid & ATTR_ATIME) != 0) { | |
991 | __le16 dummy; | |
992 | info_mask |= (DM_LAST_ACCESS_DATE); | |
993 | ncp_date_unix2dos(attr->ia_atime.tv_sec, | |
994 | &dummy, &info.lastAccessDate); | |
995 | } | |
996 | if (info_mask != 0) { | |
997 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), | |
998 | inode, info_mask, &info); | |
999 | if (result != 0) { | |
1da177e4 LT |
1000 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { |
1001 | /* NetWare seems not to allow this. I | |
1002 | do not know why. So, just tell the | |
1003 | user everything went fine. This is | |
1004 | a terrible hack, but I do not know | |
1005 | how to do this correctly. */ | |
1006 | result = 0; | |
1007 | } else | |
1008 | goto out; | |
1009 | } | |
1010 | #ifdef CONFIG_NCPFS_STRONG | |
1011 | if ((!result) && (info_mask & DM_ATTRIBUTES)) | |
1012 | NCP_FINFO(inode)->nwattr = info.attributes; | |
1013 | #endif | |
1014 | } | |
1025774c CH |
1015 | if (result) |
1016 | goto out; | |
1017 | ||
1018 | setattr_copy(inode, attr); | |
1019 | mark_inode_dirty(inode); | |
1020 | ||
1da177e4 | 1021 | out: |
2e54eb96 PV |
1022 | if (result > 0) |
1023 | result = -EACCES; | |
1da177e4 LT |
1024 | return result; |
1025 | } | |
1026 | ||
3c26ff6e AV |
1027 | static struct dentry *ncp_mount(struct file_system_type *fs_type, |
1028 | int flags, const char *dev_name, void *data) | |
1da177e4 | 1029 | { |
3c26ff6e | 1030 | return mount_nodev(fs_type, flags, data, ncp_fill_super); |
1da177e4 LT |
1031 | } |
1032 | ||
1033 | static struct file_system_type ncp_fs_type = { | |
1034 | .owner = THIS_MODULE, | |
1035 | .name = "ncpfs", | |
3c26ff6e | 1036 | .mount = ncp_mount, |
1da177e4 | 1037 | .kill_sb = kill_anon_super, |
564cd138 | 1038 | .fs_flags = FS_BINARY_MOUNTDATA, |
1da177e4 LT |
1039 | }; |
1040 | ||
1041 | static int __init init_ncp_fs(void) | |
1042 | { | |
1043 | int err; | |
7c28cbae | 1044 | DPRINTK("ncpfs: init_ncp_fs called\n"); |
1da177e4 | 1045 | |
1da177e4 LT |
1046 | err = init_inodecache(); |
1047 | if (err) | |
1048 | goto out1; | |
1049 | err = register_filesystem(&ncp_fs_type); | |
1050 | if (err) | |
1051 | goto out; | |
1052 | return 0; | |
1053 | out: | |
1054 | destroy_inodecache(); | |
1055 | out1: | |
1056 | return err; | |
1057 | } | |
1058 | ||
1059 | static void __exit exit_ncp_fs(void) | |
1060 | { | |
7c28cbae | 1061 | DPRINTK("ncpfs: exit_ncp_fs called\n"); |
1da177e4 LT |
1062 | unregister_filesystem(&ncp_fs_type); |
1063 | destroy_inodecache(); | |
1da177e4 LT |
1064 | } |
1065 | ||
1066 | module_init(init_ncp_fs) | |
1067 | module_exit(exit_ncp_fs) | |
1068 | MODULE_LICENSE("GPL"); |