]>
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 | { | |
8c0a8537 KS |
92 | /* |
93 | * Make sure all delayed rcu free inodes are flushed before we | |
94 | * destroy cache. | |
95 | */ | |
96 | rcu_barrier(); | |
1a1d92c1 | 97 | kmem_cache_destroy(ncp_inode_cachep); |
1da177e4 LT |
98 | } |
99 | ||
100 | static int ncp_remount(struct super_block *sb, int *flags, char* data) | |
101 | { | |
102 | *flags |= MS_NODIRATIME; | |
103 | return 0; | |
104 | } | |
105 | ||
ee9b6d61 | 106 | static const struct super_operations ncp_sops = |
1da177e4 LT |
107 | { |
108 | .alloc_inode = ncp_alloc_inode, | |
109 | .destroy_inode = ncp_destroy_inode, | |
110 | .drop_inode = generic_delete_inode, | |
94ee8494 | 111 | .evict_inode = ncp_evict_inode, |
1da177e4 LT |
112 | .put_super = ncp_put_super, |
113 | .statfs = ncp_statfs, | |
114 | .remount_fs = ncp_remount, | |
564cd138 | 115 | .show_options = ncp_show_options, |
1da177e4 LT |
116 | }; |
117 | ||
1da177e4 LT |
118 | /* |
119 | * Fill in the ncpfs-specific information in the inode. | |
120 | */ | |
121 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) | |
122 | { | |
123 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; | |
124 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; | |
125 | NCP_FINFO(inode)->volNumber = nwinfo->volume; | |
126 | } | |
127 | ||
128 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) | |
129 | { | |
130 | ncp_update_dirent(inode, nwinfo); | |
131 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
132 | NCP_FINFO(inode)->access = nwinfo->access; | |
133 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, | |
134 | sizeof(nwinfo->file_handle)); | |
135 | DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", | |
136 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, | |
137 | NCP_FINFO(inode)->dirEntNum); | |
138 | } | |
139 | ||
140 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) | |
141 | { | |
142 | /* NFS namespace mode overrides others if it's set. */ | |
143 | DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", | |
144 | nwi->entryName, nwi->nfs.mode); | |
145 | if (nwi->nfs.mode) { | |
146 | /* XXX Security? */ | |
147 | inode->i_mode = nwi->nfs.mode; | |
148 | } | |
149 | ||
2e54eb96 | 150 | inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; |
1da177e4 LT |
151 | |
152 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); | |
153 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); | |
154 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); | |
155 | inode->i_atime.tv_nsec = 0; | |
156 | inode->i_mtime.tv_nsec = 0; | |
157 | inode->i_ctime.tv_nsec = 0; | |
158 | } | |
159 | ||
160 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) | |
161 | { | |
162 | struct nw_info_struct *nwi = &nwinfo->i; | |
163 | struct ncp_server *server = NCP_SERVER(inode); | |
164 | ||
165 | if (nwi->attributes & aDIR) { | |
166 | inode->i_mode = server->m.dir_mode; | |
167 | /* for directories dataStreamSize seems to be some | |
168 | Object ID ??? */ | |
2e54eb96 | 169 | i_size_write(inode, NCP_BLOCK_SIZE); |
1da177e4 | 170 | } else { |
2e54eb96 PV |
171 | u32 size; |
172 | ||
1da177e4 | 173 | inode->i_mode = server->m.file_mode; |
2e54eb96 PV |
174 | size = le32_to_cpu(nwi->dataStreamSize); |
175 | i_size_write(inode, size); | |
1da177e4 LT |
176 | #ifdef CONFIG_NCPFS_EXTRAS |
177 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) | |
178 | && (nwi->attributes & aSHARED)) { | |
179 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { | |
180 | case aHIDDEN: | |
181 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { | |
2e54eb96 PV |
182 | if (/* (size >= NCP_MIN_SYMLINK_SIZE) |
183 | && */ (size <= NCP_MAX_SYMLINK_SIZE)) { | |
1da177e4 LT |
184 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; |
185 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; | |
186 | break; | |
187 | } | |
188 | } | |
189 | /* FALLTHROUGH */ | |
190 | case 0: | |
191 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
192 | inode->i_mode |= S_IRUGO; | |
193 | break; | |
194 | case aSYSTEM: | |
195 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
196 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; | |
197 | break; | |
198 | /* case aSYSTEM|aHIDDEN: */ | |
199 | default: | |
200 | /* reserved combination */ | |
201 | break; | |
202 | } | |
203 | } | |
204 | #endif | |
205 | } | |
206 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; | |
207 | } | |
208 | ||
209 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) | |
210 | { | |
211 | NCP_FINFO(inode)->flags = 0; | |
212 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { | |
213 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
214 | ncp_update_attrs(inode, nwinfo); | |
215 | } | |
216 | ||
217 | ncp_update_dates(inode, &nwinfo->i); | |
218 | ncp_update_dirent(inode, nwinfo); | |
219 | } | |
220 | ||
221 | /* | |
2e54eb96 | 222 | * Fill in the inode based on the ncp_entry_info structure. Used only for brand new inodes. |
1da177e4 LT |
223 | */ |
224 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) | |
225 | { | |
226 | struct ncp_server *server = NCP_SERVER(inode); | |
227 | ||
228 | NCP_FINFO(inode)->flags = 0; | |
229 | ||
230 | ncp_update_attrs(inode, nwinfo); | |
231 | ||
232 | DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); | |
233 | ||
bfe86848 | 234 | set_nlink(inode, 1); |
1da177e4 LT |
235 | inode->i_uid = server->m.uid; |
236 | inode->i_gid = server->m.gid; | |
1da177e4 LT |
237 | |
238 | ncp_update_dates(inode, &nwinfo->i); | |
239 | ncp_update_inode(inode, nwinfo); | |
240 | } | |
241 | ||
242 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
92e1d5be | 243 | static const struct inode_operations ncp_symlink_inode_operations = { |
1da177e4 LT |
244 | .readlink = generic_readlink, |
245 | .follow_link = page_follow_link_light, | |
246 | .put_link = page_put_link, | |
247 | .setattr = ncp_notify_change, | |
248 | }; | |
249 | #endif | |
250 | ||
251 | /* | |
252 | * Get a new inode. | |
253 | */ | |
254 | struct inode * | |
255 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) | |
256 | { | |
257 | struct inode *inode; | |
258 | ||
259 | if (info == NULL) { | |
260 | printk(KERN_ERR "ncp_iget: info is NULL\n"); | |
261 | return NULL; | |
262 | } | |
263 | ||
264 | inode = new_inode(sb); | |
265 | if (inode) { | |
266 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); | |
267 | ||
2e54eb96 | 268 | inode->i_mapping->backing_dev_info = sb->s_bdi; |
1da177e4 LT |
269 | inode->i_ino = info->ino; |
270 | ncp_set_attr(inode, info); | |
271 | if (S_ISREG(inode->i_mode)) { | |
272 | inode->i_op = &ncp_file_inode_operations; | |
273 | inode->i_fop = &ncp_file_operations; | |
274 | } else if (S_ISDIR(inode->i_mode)) { | |
275 | inode->i_op = &ncp_dir_inode_operations; | |
276 | inode->i_fop = &ncp_dir_operations; | |
277 | #ifdef CONFIG_NCPFS_NFS_NS | |
278 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
279 | init_special_inode(inode, inode->i_mode, | |
280 | new_decode_dev(info->i.nfs.rdev)); | |
281 | #endif | |
282 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
283 | } else if (S_ISLNK(inode->i_mode)) { | |
284 | inode->i_op = &ncp_symlink_inode_operations; | |
285 | inode->i_data.a_ops = &ncp_symlink_aops; | |
286 | #endif | |
287 | } else { | |
288 | make_bad_inode(inode); | |
289 | } | |
290 | insert_inode_hash(inode); | |
291 | } else | |
292 | printk(KERN_ERR "ncp_iget: iget failed!\n"); | |
293 | return inode; | |
294 | } | |
295 | ||
296 | static void | |
94ee8494 | 297 | ncp_evict_inode(struct inode *inode) |
1da177e4 | 298 | { |
fef26658 | 299 | truncate_inode_pages(&inode->i_data, 0); |
dbd5768f | 300 | clear_inode(inode); |
fef26658 | 301 | |
1da177e4 | 302 | if (S_ISDIR(inode->i_mode)) { |
94ee8494 | 303 | DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino); |
1da177e4 LT |
304 | } |
305 | ||
306 | if (ncp_make_closed(inode) != 0) { | |
307 | /* We can't do anything but complain. */ | |
94ee8494 | 308 | printk(KERN_ERR "ncp_evict_inode: could not close\n"); |
1da177e4 | 309 | } |
1da177e4 LT |
310 | } |
311 | ||
312 | static void ncp_stop_tasks(struct ncp_server *server) { | |
313 | struct sock* sk = server->ncp_sock->sk; | |
2a4df5d3 PV |
314 | |
315 | lock_sock(sk); | |
1da177e4 LT |
316 | sk->sk_error_report = server->error_report; |
317 | sk->sk_data_ready = server->data_ready; | |
318 | sk->sk_write_space = server->write_space; | |
2a4df5d3 | 319 | release_sock(sk); |
1da177e4 | 320 | del_timer_sync(&server->timeout_tm); |
5d8e4bdd | 321 | |
43829731 | 322 | flush_work(&server->rcv.tq); |
5d8e4bdd | 323 | if (sk->sk_socket->type == SOCK_STREAM) |
43829731 | 324 | flush_work(&server->tx.tq); |
5d8e4bdd | 325 | else |
43829731 | 326 | flush_work(&server->timeout_tq); |
1da177e4 LT |
327 | } |
328 | ||
34c80b1d | 329 | static int ncp_show_options(struct seq_file *seq, struct dentry *root) |
564cd138 | 330 | { |
34c80b1d | 331 | struct ncp_server *server = NCP_SBP(root->d_sb); |
564cd138 MS |
332 | unsigned int tmp; |
333 | ||
1ac7fd81 EB |
334 | if (!uid_eq(server->m.uid, GLOBAL_ROOT_UID)) |
335 | seq_printf(seq, ",uid=%u", | |
336 | from_kuid_munged(&init_user_ns, server->m.uid)); | |
337 | if (!gid_eq(server->m.gid, GLOBAL_ROOT_GID)) | |
338 | seq_printf(seq, ",gid=%u", | |
339 | from_kgid_munged(&init_user_ns, server->m.gid)); | |
340 | if (!uid_eq(server->m.mounted_uid, GLOBAL_ROOT_UID)) | |
341 | seq_printf(seq, ",owner=%u", | |
342 | from_kuid_munged(&init_user_ns, server->m.mounted_uid)); | |
564cd138 MS |
343 | tmp = server->m.file_mode & S_IALLUGO; |
344 | if (tmp != NCP_DEFAULT_FILE_MODE) | |
345 | seq_printf(seq, ",mode=0%o", tmp); | |
346 | tmp = server->m.dir_mode & S_IALLUGO; | |
347 | if (tmp != NCP_DEFAULT_DIR_MODE) | |
348 | seq_printf(seq, ",dirmode=0%o", tmp); | |
349 | if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) { | |
350 | tmp = server->m.time_out * 100 / HZ; | |
351 | seq_printf(seq, ",timeout=%u", tmp); | |
352 | } | |
353 | if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT) | |
354 | seq_printf(seq, ",retry=%u", server->m.retry_count); | |
355 | if (server->m.flags != 0) | |
356 | seq_printf(seq, ",flags=%lu", server->m.flags); | |
357 | if (server->m.wdog_pid != NULL) | |
358 | seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid)); | |
359 | ||
360 | return 0; | |
361 | } | |
362 | ||
1da177e4 LT |
363 | static const struct ncp_option ncp_opts[] = { |
364 | { "uid", OPT_INT, 'u' }, | |
365 | { "gid", OPT_INT, 'g' }, | |
366 | { "owner", OPT_INT, 'o' }, | |
367 | { "mode", OPT_INT, 'm' }, | |
368 | { "dirmode", OPT_INT, 'd' }, | |
369 | { "timeout", OPT_INT, 't' }, | |
370 | { "retry", OPT_INT, 'r' }, | |
371 | { "flags", OPT_INT, 'f' }, | |
372 | { "wdogpid", OPT_INT, 'w' }, | |
373 | { "ncpfd", OPT_INT, 'n' }, | |
374 | { "infofd", OPT_INT, 'i' }, /* v5 */ | |
375 | { "version", OPT_INT, 'v' }, | |
376 | { NULL, 0, 0 } }; | |
377 | ||
378 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { | |
379 | int optval; | |
380 | char *optarg; | |
381 | unsigned long optint; | |
382 | int version = 0; | |
1de24126 | 383 | int ret; |
1da177e4 LT |
384 | |
385 | data->flags = 0; | |
386 | data->int_flags = 0; | |
1ac7fd81 | 387 | data->mounted_uid = GLOBAL_ROOT_UID; |
2154227a | 388 | data->wdog_pid = NULL; |
1da177e4 | 389 | data->ncp_fd = ~0; |
564cd138 MS |
390 | data->time_out = NCP_DEFAULT_TIME_OUT; |
391 | data->retry_count = NCP_DEFAULT_RETRY_COUNT; | |
1ac7fd81 EB |
392 | data->uid = GLOBAL_ROOT_UID; |
393 | data->gid = GLOBAL_ROOT_GID; | |
564cd138 MS |
394 | data->file_mode = NCP_DEFAULT_FILE_MODE; |
395 | data->dir_mode = NCP_DEFAULT_DIR_MODE; | |
1da177e4 LT |
396 | data->info_fd = -1; |
397 | data->mounted_vol[0] = 0; | |
398 | ||
399 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { | |
1de24126 EB |
400 | ret = optval; |
401 | if (ret < 0) | |
402 | goto err; | |
1da177e4 LT |
403 | switch (optval) { |
404 | case 'u': | |
1ac7fd81 | 405 | data->uid = make_kuid(current_user_ns(), optint); |
4fbeb19d WY |
406 | if (!uid_valid(data->uid)) { |
407 | ret = -EINVAL; | |
1ac7fd81 | 408 | goto err; |
4fbeb19d | 409 | } |
1da177e4 LT |
410 | break; |
411 | case 'g': | |
1ac7fd81 | 412 | data->gid = make_kgid(current_user_ns(), optint); |
4fbeb19d WY |
413 | if (!gid_valid(data->gid)) { |
414 | ret = -EINVAL; | |
1ac7fd81 | 415 | goto err; |
4fbeb19d | 416 | } |
1da177e4 LT |
417 | break; |
418 | case 'o': | |
1ac7fd81 | 419 | data->mounted_uid = make_kuid(current_user_ns(), optint); |
4fbeb19d WY |
420 | if (!uid_valid(data->mounted_uid)) { |
421 | ret = -EINVAL; | |
1ac7fd81 | 422 | goto err; |
4fbeb19d | 423 | } |
1da177e4 LT |
424 | break; |
425 | case 'm': | |
426 | data->file_mode = optint; | |
427 | break; | |
428 | case 'd': | |
429 | data->dir_mode = optint; | |
430 | break; | |
431 | case 't': | |
432 | data->time_out = optint; | |
433 | break; | |
434 | case 'r': | |
435 | data->retry_count = optint; | |
436 | break; | |
437 | case 'f': | |
438 | data->flags = optint; | |
439 | break; | |
440 | case 'w': | |
2154227a | 441 | data->wdog_pid = find_get_pid(optint); |
1da177e4 LT |
442 | break; |
443 | case 'n': | |
444 | data->ncp_fd = optint; | |
445 | break; | |
446 | case 'i': | |
447 | data->info_fd = optint; | |
448 | break; | |
449 | case 'v': | |
1de24126 EB |
450 | ret = -ECHRNG; |
451 | if (optint < NCP_MOUNT_VERSION_V4) | |
452 | goto err; | |
453 | if (optint > NCP_MOUNT_VERSION_V5) | |
454 | goto err; | |
1da177e4 LT |
455 | version = optint; |
456 | break; | |
457 | ||
458 | } | |
459 | } | |
460 | return 0; | |
1de24126 EB |
461 | err: |
462 | put_pid(data->wdog_pid); | |
463 | data->wdog_pid = NULL; | |
464 | return ret; | |
1da177e4 LT |
465 | } |
466 | ||
467 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) | |
468 | { | |
469 | struct ncp_mount_data_kernel data; | |
470 | struct ncp_server *server; | |
471 | struct file *ncp_filp; | |
472 | struct inode *root_inode; | |
473 | struct inode *sock_inode; | |
474 | struct socket *sock; | |
475 | int error; | |
476 | int default_bufsize; | |
477 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
478 | int options; | |
479 | #endif | |
480 | struct ncp_entry_info finfo; | |
481 | ||
2a5cac17 | 482 | memset(&data, 0, sizeof(data)); |
f8314dc6 | 483 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
1da177e4 LT |
484 | if (!server) |
485 | return -ENOMEM; | |
486 | sb->s_fs_info = server; | |
1da177e4 LT |
487 | |
488 | error = -EFAULT; | |
489 | if (raw_data == NULL) | |
490 | goto out; | |
491 | switch (*(int*)raw_data) { | |
492 | case NCP_MOUNT_VERSION: | |
493 | { | |
494 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; | |
495 | ||
496 | data.flags = md->flags; | |
497 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; | |
1ac7fd81 | 498 | data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid); |
2154227a | 499 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
500 | data.ncp_fd = md->ncp_fd; |
501 | data.time_out = md->time_out; | |
502 | data.retry_count = md->retry_count; | |
1ac7fd81 EB |
503 | data.uid = make_kuid(current_user_ns(), md->uid); |
504 | data.gid = make_kgid(current_user_ns(), md->gid); | |
1da177e4 LT |
505 | data.file_mode = md->file_mode; |
506 | data.dir_mode = md->dir_mode; | |
507 | data.info_fd = -1; | |
508 | memcpy(data.mounted_vol, md->mounted_vol, | |
509 | NCP_VOLNAME_LEN+1); | |
510 | } | |
511 | break; | |
512 | case NCP_MOUNT_VERSION_V4: | |
513 | { | |
514 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; | |
515 | ||
516 | data.flags = md->flags; | |
1ac7fd81 | 517 | data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid); |
2154227a | 518 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
519 | data.ncp_fd = md->ncp_fd; |
520 | data.time_out = md->time_out; | |
521 | data.retry_count = md->retry_count; | |
1ac7fd81 EB |
522 | data.uid = make_kuid(current_user_ns(), md->uid); |
523 | data.gid = make_kgid(current_user_ns(), md->gid); | |
1da177e4 LT |
524 | data.file_mode = md->file_mode; |
525 | data.dir_mode = md->dir_mode; | |
526 | data.info_fd = -1; | |
1da177e4 LT |
527 | } |
528 | break; | |
529 | default: | |
530 | error = -ECHRNG; | |
531 | if (memcmp(raw_data, "vers", 4) == 0) { | |
532 | error = ncp_parse_options(&data, raw_data); | |
533 | } | |
534 | if (error) | |
535 | goto out; | |
536 | break; | |
537 | } | |
1ac7fd81 EB |
538 | error = -EINVAL; |
539 | if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) || | |
540 | !gid_valid(data.gid)) | |
541 | goto out; | |
1da177e4 LT |
542 | error = -EBADF; |
543 | ncp_filp = fget(data.ncp_fd); | |
544 | if (!ncp_filp) | |
545 | goto out; | |
546 | error = -ENOTSOCK; | |
496ad9aa | 547 | sock_inode = file_inode(ncp_filp); |
1da177e4 LT |
548 | if (!S_ISSOCK(sock_inode->i_mode)) |
549 | goto out_fput; | |
550 | sock = SOCKET_I(sock_inode); | |
551 | if (!sock) | |
552 | goto out_fput; | |
553 | ||
554 | if (sock->type == SOCK_STREAM) | |
555 | default_bufsize = 0xF000; | |
556 | else | |
557 | default_bufsize = 1024; | |
558 | ||
559 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ | |
560 | sb->s_maxbytes = 0xFFFFFFFFU; | |
561 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ | |
562 | sb->s_blocksize_bits = 10; | |
563 | sb->s_magic = NCP_SUPER_MAGIC; | |
564 | sb->s_op = &ncp_sops; | |
0378c405 | 565 | sb->s_d_op = &ncp_dentry_operations; |
f1970c73 | 566 | sb->s_bdi = &server->bdi; |
1da177e4 LT |
567 | |
568 | server = NCP_SBP(sb); | |
569 | memset(server, 0, sizeof(*server)); | |
570 | ||
f1970c73 JA |
571 | error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY); |
572 | if (error) | |
759c361e | 573 | goto out_fput; |
f1970c73 | 574 | |
1da177e4 LT |
575 | server->ncp_filp = ncp_filp; |
576 | server->ncp_sock = sock; | |
577 | ||
578 | if (data.info_fd != -1) { | |
579 | struct socket *info_sock; | |
580 | ||
581 | error = -EBADF; | |
582 | server->info_filp = fget(data.info_fd); | |
583 | if (!server->info_filp) | |
759c361e | 584 | goto out_bdi; |
1da177e4 | 585 | error = -ENOTSOCK; |
496ad9aa | 586 | sock_inode = file_inode(server->info_filp); |
1da177e4 LT |
587 | if (!S_ISSOCK(sock_inode->i_mode)) |
588 | goto out_fput2; | |
589 | info_sock = SOCKET_I(sock_inode); | |
590 | if (!info_sock) | |
591 | goto out_fput2; | |
592 | error = -EBADFD; | |
593 | if (info_sock->type != SOCK_STREAM) | |
594 | goto out_fput2; | |
595 | server->info_sock = info_sock; | |
596 | } | |
597 | ||
598 | /* server->lock = 0; */ | |
8e3f9045 | 599 | mutex_init(&server->mutex); |
1da177e4 LT |
600 | server->packet = NULL; |
601 | /* server->buffer_size = 0; */ | |
602 | /* server->conn_status = 0; */ | |
603 | /* server->root_dentry = NULL; */ | |
604 | /* server->root_setuped = 0; */ | |
2e54eb96 | 605 | mutex_init(&server->root_setup_lock); |
1da177e4 LT |
606 | #ifdef CONFIG_NCPFS_PACKET_SIGNING |
607 | /* server->sign_wanted = 0; */ | |
608 | /* server->sign_active = 0; */ | |
609 | #endif | |
2e54eb96 | 610 | init_rwsem(&server->auth_rwsem); |
1da177e4 LT |
611 | server->auth.auth_type = NCP_AUTH_NONE; |
612 | /* server->auth.object_name_len = 0; */ | |
613 | /* server->auth.object_name = NULL; */ | |
614 | /* server->auth.object_type = 0; */ | |
615 | /* server->priv.len = 0; */ | |
616 | /* server->priv.data = NULL; */ | |
617 | ||
618 | server->m = data; | |
25985edc | 619 | /* Although anything producing this is buggy, it happens |
1da177e4 LT |
620 | now because of PATH_MAX changes.. */ |
621 | if (server->m.time_out < 1) { | |
622 | server->m.time_out = 10; | |
623 | printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); | |
624 | } | |
625 | server->m.time_out = server->m.time_out * HZ / 100; | |
626 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; | |
627 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; | |
628 | ||
629 | #ifdef CONFIG_NCPFS_NLS | |
630 | /* load the default NLS charsets */ | |
631 | server->nls_vol = load_nls_default(); | |
632 | server->nls_io = load_nls_default(); | |
633 | #endif /* CONFIG_NCPFS_NLS */ | |
634 | ||
2e54eb96 | 635 | atomic_set(&server->dentry_ttl, 0); /* no caching */ |
1da177e4 LT |
636 | |
637 | INIT_LIST_HEAD(&server->tx.requests); | |
8e3f9045 | 638 | mutex_init(&server->rcv.creq_mutex); |
1da177e4 LT |
639 | server->tx.creq = NULL; |
640 | server->rcv.creq = NULL; | |
1da177e4 LT |
641 | |
642 | init_timer(&server->timeout_tm); | |
643 | #undef NCP_PACKET_SIZE | |
644 | #define NCP_PACKET_SIZE 131072 | |
645 | error = -ENOMEM; | |
646 | server->packet_size = NCP_PACKET_SIZE; | |
647 | server->packet = vmalloc(NCP_PACKET_SIZE); | |
648 | if (server->packet == NULL) | |
649 | goto out_nls; | |
c5f93cf1 PO |
650 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
651 | if (server->txbuf == NULL) | |
652 | goto out_packet; | |
653 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); | |
654 | if (server->rxbuf == NULL) | |
655 | goto out_txbuf; | |
1da177e4 | 656 | |
2a4df5d3 PV |
657 | lock_sock(sock->sk); |
658 | server->data_ready = sock->sk->sk_data_ready; | |
659 | server->write_space = sock->sk->sk_write_space; | |
660 | server->error_report = sock->sk->sk_error_report; | |
661 | sock->sk->sk_user_data = server; | |
1da177e4 LT |
662 | sock->sk->sk_data_ready = ncp_tcp_data_ready; |
663 | sock->sk->sk_error_report = ncp_tcp_error_report; | |
664 | if (sock->type == SOCK_STREAM) { | |
665 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; | |
666 | server->rcv.len = 10; | |
667 | server->rcv.state = 0; | |
c4028958 DH |
668 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
669 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); | |
1da177e4 LT |
670 | sock->sk->sk_write_space = ncp_tcp_write_space; |
671 | } else { | |
c4028958 DH |
672 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
673 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); | |
1da177e4 LT |
674 | server->timeout_tm.data = (unsigned long)server; |
675 | server->timeout_tm.function = ncpdgram_timeout_call; | |
676 | } | |
2a4df5d3 | 677 | release_sock(sock->sk); |
1da177e4 LT |
678 | |
679 | ncp_lock_server(server); | |
680 | error = ncp_connect(server); | |
681 | ncp_unlock_server(server); | |
682 | if (error < 0) | |
c5f93cf1 | 683 | goto out_rxbuf; |
1da177e4 LT |
684 | DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
685 | ||
686 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ | |
687 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
688 | if (ncp_negotiate_size_and_options(server, default_bufsize, | |
689 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) | |
690 | { | |
691 | if (options != NCP_DEFAULT_OPTIONS) | |
692 | { | |
693 | if (ncp_negotiate_size_and_options(server, | |
694 | default_bufsize, | |
695 | options & 2, | |
696 | &(server->buffer_size), &options) != 0) | |
697 | ||
698 | { | |
699 | goto out_disconnect; | |
700 | } | |
701 | } | |
2e54eb96 | 702 | ncp_lock_server(server); |
1da177e4 LT |
703 | if (options & 2) |
704 | server->sign_wanted = 1; | |
2e54eb96 | 705 | ncp_unlock_server(server); |
1da177e4 LT |
706 | } |
707 | else | |
708 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ | |
709 | if (ncp_negotiate_buffersize(server, default_bufsize, | |
710 | &(server->buffer_size)) != 0) | |
711 | goto out_disconnect; | |
712 | DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); | |
713 | ||
714 | memset(&finfo, 0, sizeof(finfo)); | |
715 | finfo.i.attributes = aDIR; | |
716 | finfo.i.dataStreamSize = 0; /* ignored */ | |
717 | finfo.i.dirEntNum = 0; | |
718 | finfo.i.DosDirNum = 0; | |
719 | #ifdef CONFIG_NCPFS_SMALLDOS | |
720 | finfo.i.NSCreator = NW_NS_DOS; | |
721 | #endif | |
722 | finfo.volume = NCP_NUMBER_OF_VOLUMES; | |
723 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ | |
724 | finfo.i.creationTime = finfo.i.modifyTime | |
725 | = cpu_to_le16(0x0000); | |
726 | finfo.i.creationDate = finfo.i.modifyDate | |
727 | = finfo.i.lastAccessDate | |
728 | = cpu_to_le16(0x0C21); | |
729 | finfo.i.nameLen = 0; | |
730 | finfo.i.entryName[0] = '\0'; | |
731 | ||
732 | finfo.opened = 0; | |
733 | finfo.ino = 2; /* tradition */ | |
734 | ||
735 | server->name_space[finfo.volume] = NW_NS_DOS; | |
736 | ||
737 | error = -ENOMEM; | |
738 | root_inode = ncp_iget(sb, &finfo); | |
739 | if (!root_inode) | |
740 | goto out_disconnect; | |
741 | DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); | |
48fde701 | 742 | sb->s_root = d_make_root(root_inode); |
1da177e4 | 743 | if (!sb->s_root) |
48fde701 | 744 | goto out_disconnect; |
1da177e4 LT |
745 | return 0; |
746 | ||
1da177e4 LT |
747 | out_disconnect: |
748 | ncp_lock_server(server); | |
749 | ncp_disconnect(server); | |
750 | ncp_unlock_server(server); | |
c5f93cf1 | 751 | out_rxbuf: |
1da177e4 | 752 | ncp_stop_tasks(server); |
c5f93cf1 PO |
753 | vfree(server->rxbuf); |
754 | out_txbuf: | |
755 | vfree(server->txbuf); | |
756 | out_packet: | |
1da177e4 LT |
757 | vfree(server->packet); |
758 | out_nls: | |
759 | #ifdef CONFIG_NCPFS_NLS | |
760 | unload_nls(server->nls_io); | |
761 | unload_nls(server->nls_vol); | |
762 | #endif | |
2e54eb96 PV |
763 | mutex_destroy(&server->rcv.creq_mutex); |
764 | mutex_destroy(&server->root_setup_lock); | |
765 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
766 | out_fput2: |
767 | if (server->info_filp) | |
768 | fput(server->info_filp); | |
f1970c73 | 769 | out_bdi: |
759c361e DH |
770 | bdi_destroy(&server->bdi); |
771 | out_fput: | |
1da177e4 LT |
772 | /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: |
773 | * | |
e956b4b7 MW |
774 | * The previously used put_filp(ncp_filp); was bogus, since |
775 | * it doesn't perform proper unlocking. | |
1da177e4 LT |
776 | */ |
777 | fput(ncp_filp); | |
778 | out: | |
1de24126 | 779 | put_pid(data.wdog_pid); |
1da177e4 LT |
780 | sb->s_fs_info = NULL; |
781 | kfree(server); | |
782 | return error; | |
783 | } | |
784 | ||
1dcddd4a AV |
785 | static void delayed_free(struct rcu_head *p) |
786 | { | |
787 | struct ncp_server *server = container_of(p, struct ncp_server, rcu); | |
788 | #ifdef CONFIG_NCPFS_NLS | |
789 | /* unload the NLS charsets */ | |
790 | unload_nls(server->nls_vol); | |
791 | unload_nls(server->nls_io); | |
792 | #endif /* CONFIG_NCPFS_NLS */ | |
793 | kfree(server); | |
794 | } | |
795 | ||
1da177e4 LT |
796 | static void ncp_put_super(struct super_block *sb) |
797 | { | |
798 | struct ncp_server *server = NCP_SBP(sb); | |
799 | ||
800 | ncp_lock_server(server); | |
801 | ncp_disconnect(server); | |
802 | ncp_unlock_server(server); | |
803 | ||
804 | ncp_stop_tasks(server); | |
805 | ||
2e54eb96 PV |
806 | mutex_destroy(&server->rcv.creq_mutex); |
807 | mutex_destroy(&server->root_setup_lock); | |
808 | mutex_destroy(&server->mutex); | |
1da177e4 LT |
809 | |
810 | if (server->info_filp) | |
811 | fput(server->info_filp); | |
812 | fput(server->ncp_filp); | |
2154227a EB |
813 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
814 | put_pid(server->m.wdog_pid); | |
1da177e4 | 815 | |
f1970c73 | 816 | bdi_destroy(&server->bdi); |
44db77f3 PE |
817 | kfree(server->priv.data); |
818 | kfree(server->auth.object_name); | |
c5f93cf1 PO |
819 | vfree(server->rxbuf); |
820 | vfree(server->txbuf); | |
1da177e4 | 821 | vfree(server->packet); |
1dcddd4a | 822 | call_rcu(&server->rcu, delayed_free); |
1da177e4 LT |
823 | } |
824 | ||
726c3342 | 825 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 LT |
826 | { |
827 | struct dentry* d; | |
828 | struct inode* i; | |
829 | struct ncp_inode_info* ni; | |
830 | struct ncp_server* s; | |
831 | struct ncp_volume_info vi; | |
726c3342 | 832 | struct super_block *sb = dentry->d_sb; |
1da177e4 LT |
833 | int err; |
834 | __u8 dh; | |
835 | ||
836 | d = sb->s_root; | |
837 | if (!d) { | |
838 | goto dflt; | |
839 | } | |
840 | i = d->d_inode; | |
841 | if (!i) { | |
842 | goto dflt; | |
843 | } | |
844 | ni = NCP_FINFO(i); | |
845 | if (!ni) { | |
846 | goto dflt; | |
847 | } | |
848 | s = NCP_SBP(sb); | |
849 | if (!s) { | |
850 | goto dflt; | |
851 | } | |
852 | if (!s->m.mounted_vol[0]) { | |
853 | goto dflt; | |
854 | } | |
855 | ||
856 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); | |
857 | if (err) { | |
858 | goto dflt; | |
859 | } | |
860 | err = ncp_get_directory_info(s, dh, &vi); | |
861 | ncp_dirhandle_free(s, dh); | |
862 | if (err) { | |
863 | goto dflt; | |
864 | } | |
865 | buf->f_type = NCP_SUPER_MAGIC; | |
866 | buf->f_bsize = vi.sectors_per_block * 512; | |
867 | buf->f_blocks = vi.total_blocks; | |
868 | buf->f_bfree = vi.free_blocks; | |
869 | buf->f_bavail = vi.free_blocks; | |
870 | buf->f_files = vi.total_dir_entries; | |
871 | buf->f_ffree = vi.available_dir_entries; | |
872 | buf->f_namelen = 12; | |
873 | return 0; | |
874 | ||
875 | /* We cannot say how much disk space is left on a mounted | |
876 | NetWare Server, because free space is distributed over | |
877 | volumes, and the current user might have disk quotas. So | |
878 | free space is not that simple to determine. Our decision | |
879 | here is to err conservatively. */ | |
880 | ||
881 | dflt:; | |
882 | buf->f_type = NCP_SUPER_MAGIC; | |
883 | buf->f_bsize = NCP_BLOCK_SIZE; | |
884 | buf->f_blocks = 0; | |
885 | buf->f_bfree = 0; | |
886 | buf->f_bavail = 0; | |
887 | buf->f_namelen = 12; | |
888 | return 0; | |
889 | } | |
890 | ||
891 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) | |
892 | { | |
893 | struct inode *inode = dentry->d_inode; | |
894 | int result = 0; | |
895 | __le32 info_mask; | |
896 | struct nw_modify_dos_info info; | |
897 | struct ncp_server *server; | |
898 | ||
899 | result = -EIO; | |
900 | ||
1da177e4 | 901 | server = NCP_SERVER(inode); |
2e54eb96 | 902 | if (!server) /* How this could happen? */ |
1da177e4 LT |
903 | goto out; |
904 | ||
338b2f57 AV |
905 | result = -EPERM; |
906 | if (IS_DEADDIR(dentry->d_inode)) | |
907 | goto out; | |
908 | ||
1da177e4 LT |
909 | /* ageing the dentry to force validation */ |
910 | ncp_age_dentry(server, dentry); | |
911 | ||
912 | result = inode_change_ok(inode, attr); | |
913 | if (result < 0) | |
914 | goto out; | |
915 | ||
916 | result = -EPERM; | |
1ac7fd81 | 917 | if ((attr->ia_valid & ATTR_UID) && !uid_eq(attr->ia_uid, server->m.uid)) |
1da177e4 LT |
918 | goto out; |
919 | ||
1ac7fd81 | 920 | if ((attr->ia_valid & ATTR_GID) && !gid_eq(attr->ia_gid, server->m.gid)) |
1da177e4 LT |
921 | goto out; |
922 | ||
923 | if (((attr->ia_valid & ATTR_MODE) && | |
924 | (attr->ia_mode & | |
925 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) | |
926 | goto out; | |
927 | ||
928 | info_mask = 0; | |
929 | memset(&info, 0, sizeof(info)); | |
930 | ||
931 | #if 1 | |
932 | if ((attr->ia_valid & ATTR_MODE) != 0) | |
933 | { | |
934 | umode_t newmode = attr->ia_mode; | |
935 | ||
936 | info_mask |= DM_ATTRIBUTES; | |
937 | ||
938 | if (S_ISDIR(inode->i_mode)) { | |
939 | newmode &= server->m.dir_mode; | |
940 | } else { | |
941 | #ifdef CONFIG_NCPFS_EXTRAS | |
942 | if (server->m.flags & NCP_MOUNT_EXTRAS) { | |
943 | /* any non-default execute bit set */ | |
944 | if (newmode & ~server->m.file_mode & S_IXUGO) | |
945 | info.attributes |= aSHARED | aSYSTEM; | |
946 | /* read for group/world and not in default file_mode */ | |
947 | else if (newmode & ~server->m.file_mode & S_IRUGO) | |
948 | info.attributes |= aSHARED; | |
949 | } else | |
950 | #endif | |
951 | newmode &= server->m.file_mode; | |
952 | } | |
953 | if (newmode & S_IWUGO) | |
954 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
955 | else | |
956 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
957 | ||
958 | #ifdef CONFIG_NCPFS_NFS_NS | |
959 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { | |
960 | result = ncp_modify_nfs_info(server, | |
961 | NCP_FINFO(inode)->volNumber, | |
962 | NCP_FINFO(inode)->dirEntNum, | |
963 | attr->ia_mode, 0); | |
964 | if (result != 0) | |
965 | goto out; | |
966 | info.attributes &= ~(aSHARED | aSYSTEM); | |
967 | { | |
968 | /* mark partial success */ | |
969 | struct iattr tmpattr; | |
970 | ||
971 | tmpattr.ia_valid = ATTR_MODE; | |
972 | tmpattr.ia_mode = attr->ia_mode; | |
973 | ||
1025774c CH |
974 | setattr_copy(inode, &tmpattr); |
975 | mark_inode_dirty(inode); | |
1da177e4 LT |
976 | } |
977 | } | |
978 | #endif | |
979 | } | |
980 | #endif | |
981 | ||
982 | /* Do SIZE before attributes, otherwise mtime together with size does not work... | |
983 | */ | |
984 | if ((attr->ia_valid & ATTR_SIZE) != 0) { | |
985 | int written; | |
986 | ||
987 | DPRINTK("ncpfs: trying to change size to %ld\n", | |
988 | attr->ia_size); | |
989 | ||
990 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { | |
991 | result = -EACCES; | |
992 | goto out; | |
993 | } | |
994 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, | |
995 | attr->ia_size, 0, "", &written); | |
996 | ||
997 | /* According to ndir, the changes only take effect after | |
998 | closing the file */ | |
999 | ncp_inode_close(inode); | |
1000 | result = ncp_make_closed(inode); | |
1001 | if (result) | |
1002 | goto out; | |
1025774c CH |
1003 | |
1004 | if (attr->ia_size != i_size_read(inode)) { | |
3e7a8069 | 1005 | truncate_setsize(inode, attr->ia_size); |
1025774c | 1006 | mark_inode_dirty(inode); |
1da177e4 LT |
1007 | } |
1008 | } | |
1009 | if ((attr->ia_valid & ATTR_CTIME) != 0) { | |
1010 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); | |
1011 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, | |
1012 | &info.creationTime, &info.creationDate); | |
1013 | } | |
1014 | if ((attr->ia_valid & ATTR_MTIME) != 0) { | |
1015 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); | |
1016 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, | |
1017 | &info.modifyTime, &info.modifyDate); | |
1018 | } | |
1019 | if ((attr->ia_valid & ATTR_ATIME) != 0) { | |
1020 | __le16 dummy; | |
1021 | info_mask |= (DM_LAST_ACCESS_DATE); | |
1022 | ncp_date_unix2dos(attr->ia_atime.tv_sec, | |
1023 | &dummy, &info.lastAccessDate); | |
1024 | } | |
1025 | if (info_mask != 0) { | |
1026 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), | |
1027 | inode, info_mask, &info); | |
1028 | if (result != 0) { | |
1da177e4 LT |
1029 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { |
1030 | /* NetWare seems not to allow this. I | |
1031 | do not know why. So, just tell the | |
1032 | user everything went fine. This is | |
1033 | a terrible hack, but I do not know | |
1034 | how to do this correctly. */ | |
1035 | result = 0; | |
1036 | } else | |
1037 | goto out; | |
1038 | } | |
1039 | #ifdef CONFIG_NCPFS_STRONG | |
1040 | if ((!result) && (info_mask & DM_ATTRIBUTES)) | |
1041 | NCP_FINFO(inode)->nwattr = info.attributes; | |
1042 | #endif | |
1043 | } | |
1025774c CH |
1044 | if (result) |
1045 | goto out; | |
1046 | ||
1047 | setattr_copy(inode, attr); | |
1048 | mark_inode_dirty(inode); | |
1049 | ||
1da177e4 | 1050 | out: |
2e54eb96 PV |
1051 | if (result > 0) |
1052 | result = -EACCES; | |
1da177e4 LT |
1053 | return result; |
1054 | } | |
1055 | ||
3c26ff6e AV |
1056 | static struct dentry *ncp_mount(struct file_system_type *fs_type, |
1057 | int flags, const char *dev_name, void *data) | |
1da177e4 | 1058 | { |
3c26ff6e | 1059 | return mount_nodev(fs_type, flags, data, ncp_fill_super); |
1da177e4 LT |
1060 | } |
1061 | ||
1062 | static struct file_system_type ncp_fs_type = { | |
1063 | .owner = THIS_MODULE, | |
1064 | .name = "ncpfs", | |
3c26ff6e | 1065 | .mount = ncp_mount, |
1da177e4 | 1066 | .kill_sb = kill_anon_super, |
564cd138 | 1067 | .fs_flags = FS_BINARY_MOUNTDATA, |
1da177e4 | 1068 | }; |
7f78e035 | 1069 | MODULE_ALIAS_FS("ncpfs"); |
1da177e4 LT |
1070 | |
1071 | static int __init init_ncp_fs(void) | |
1072 | { | |
1073 | int err; | |
7c28cbae | 1074 | DPRINTK("ncpfs: init_ncp_fs called\n"); |
1da177e4 | 1075 | |
1da177e4 LT |
1076 | err = init_inodecache(); |
1077 | if (err) | |
1078 | goto out1; | |
1079 | err = register_filesystem(&ncp_fs_type); | |
1080 | if (err) | |
1081 | goto out; | |
1082 | return 0; | |
1083 | out: | |
1084 | destroy_inodecache(); | |
1085 | out1: | |
1086 | return err; | |
1087 | } | |
1088 | ||
1089 | static void __exit exit_ncp_fs(void) | |
1090 | { | |
7c28cbae | 1091 | DPRINTK("ncpfs: exit_ncp_fs called\n"); |
1da177e4 LT |
1092 | unregister_filesystem(&ncp_fs_type); |
1093 | destroy_inodecache(); | |
1da177e4 LT |
1094 | } |
1095 | ||
1096 | module_init(init_ncp_fs) | |
1097 | module_exit(exit_ncp_fs) | |
1098 | MODULE_LICENSE("GPL"); |