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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> | |
29 | #include <linux/smp_lock.h> | |
30 | #include <linux/vfs.h> | |
31 | ||
32 | #include <linux/ncp_fs.h> | |
33 | ||
34 | #include <net/sock.h> | |
35 | ||
36 | #include "ncplib_kernel.h" | |
37 | #include "getopt.h" | |
38 | ||
39 | static void ncp_delete_inode(struct inode *); | |
40 | static void ncp_put_super(struct super_block *); | |
726c3342 | 41 | static int ncp_statfs(struct dentry *, struct kstatfs *); |
1da177e4 | 42 | |
e18b890b | 43 | static struct kmem_cache * ncp_inode_cachep; |
1da177e4 LT |
44 | |
45 | static struct inode *ncp_alloc_inode(struct super_block *sb) | |
46 | { | |
47 | struct ncp_inode_info *ei; | |
e94b1766 | 48 | ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); |
1da177e4 LT |
49 | if (!ei) |
50 | return NULL; | |
51 | return &ei->vfs_inode; | |
52 | } | |
53 | ||
54 | static void ncp_destroy_inode(struct inode *inode) | |
55 | { | |
56 | kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode)); | |
57 | } | |
58 | ||
e18b890b | 59 | static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags) |
1da177e4 LT |
60 | { |
61 | struct ncp_inode_info *ei = (struct ncp_inode_info *) foo; | |
62 | ||
a35afb83 CL |
63 | mutex_init(&ei->open_mutex); |
64 | inode_init_once(&ei->vfs_inode); | |
1da177e4 | 65 | } |
20c2df83 | 66 | |
1da177e4 LT |
67 | static int init_inodecache(void) |
68 | { | |
69 | ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", | |
70 | sizeof(struct ncp_inode_info), | |
fffb60f9 PJ |
71 | 0, (SLAB_RECLAIM_ACCOUNT| |
72 | SLAB_MEM_SPREAD), | |
20c2df83 | 73 | init_once); |
1da177e4 LT |
74 | if (ncp_inode_cachep == NULL) |
75 | return -ENOMEM; | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static void destroy_inodecache(void) | |
80 | { | |
1a1d92c1 | 81 | kmem_cache_destroy(ncp_inode_cachep); |
1da177e4 LT |
82 | } |
83 | ||
84 | static int ncp_remount(struct super_block *sb, int *flags, char* data) | |
85 | { | |
86 | *flags |= MS_NODIRATIME; | |
87 | return 0; | |
88 | } | |
89 | ||
ee9b6d61 | 90 | static const struct super_operations ncp_sops = |
1da177e4 LT |
91 | { |
92 | .alloc_inode = ncp_alloc_inode, | |
93 | .destroy_inode = ncp_destroy_inode, | |
94 | .drop_inode = generic_delete_inode, | |
95 | .delete_inode = ncp_delete_inode, | |
96 | .put_super = ncp_put_super, | |
97 | .statfs = ncp_statfs, | |
98 | .remount_fs = ncp_remount, | |
99 | }; | |
100 | ||
101 | extern struct dentry_operations ncp_root_dentry_operations; | |
102 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
f5e54d6e | 103 | extern const struct address_space_operations ncp_symlink_aops; |
1da177e4 LT |
104 | extern int ncp_symlink(struct inode*, struct dentry*, const char*); |
105 | #endif | |
106 | ||
107 | /* | |
108 | * Fill in the ncpfs-specific information in the inode. | |
109 | */ | |
110 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) | |
111 | { | |
112 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; | |
113 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; | |
114 | NCP_FINFO(inode)->volNumber = nwinfo->volume; | |
115 | } | |
116 | ||
117 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) | |
118 | { | |
119 | ncp_update_dirent(inode, nwinfo); | |
120 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
121 | NCP_FINFO(inode)->access = nwinfo->access; | |
122 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, | |
123 | sizeof(nwinfo->file_handle)); | |
124 | DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", | |
125 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, | |
126 | NCP_FINFO(inode)->dirEntNum); | |
127 | } | |
128 | ||
129 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) | |
130 | { | |
131 | /* NFS namespace mode overrides others if it's set. */ | |
132 | DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", | |
133 | nwi->entryName, nwi->nfs.mode); | |
134 | if (nwi->nfs.mode) { | |
135 | /* XXX Security? */ | |
136 | inode->i_mode = nwi->nfs.mode; | |
137 | } | |
138 | ||
139 | inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; | |
140 | ||
141 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); | |
142 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); | |
143 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); | |
144 | inode->i_atime.tv_nsec = 0; | |
145 | inode->i_mtime.tv_nsec = 0; | |
146 | inode->i_ctime.tv_nsec = 0; | |
147 | } | |
148 | ||
149 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) | |
150 | { | |
151 | struct nw_info_struct *nwi = &nwinfo->i; | |
152 | struct ncp_server *server = NCP_SERVER(inode); | |
153 | ||
154 | if (nwi->attributes & aDIR) { | |
155 | inode->i_mode = server->m.dir_mode; | |
156 | /* for directories dataStreamSize seems to be some | |
157 | Object ID ??? */ | |
158 | inode->i_size = NCP_BLOCK_SIZE; | |
159 | } else { | |
160 | inode->i_mode = server->m.file_mode; | |
161 | inode->i_size = le32_to_cpu(nwi->dataStreamSize); | |
162 | #ifdef CONFIG_NCPFS_EXTRAS | |
163 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) | |
164 | && (nwi->attributes & aSHARED)) { | |
165 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { | |
166 | case aHIDDEN: | |
167 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { | |
168 | if (/* (inode->i_size >= NCP_MIN_SYMLINK_SIZE) | |
169 | && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) { | |
170 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; | |
171 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; | |
172 | break; | |
173 | } | |
174 | } | |
175 | /* FALLTHROUGH */ | |
176 | case 0: | |
177 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
178 | inode->i_mode |= S_IRUGO; | |
179 | break; | |
180 | case aSYSTEM: | |
181 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
182 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; | |
183 | break; | |
184 | /* case aSYSTEM|aHIDDEN: */ | |
185 | default: | |
186 | /* reserved combination */ | |
187 | break; | |
188 | } | |
189 | } | |
190 | #endif | |
191 | } | |
192 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; | |
193 | } | |
194 | ||
195 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) | |
196 | { | |
197 | NCP_FINFO(inode)->flags = 0; | |
198 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { | |
199 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
200 | ncp_update_attrs(inode, nwinfo); | |
201 | } | |
202 | ||
203 | ncp_update_dates(inode, &nwinfo->i); | |
204 | ncp_update_dirent(inode, nwinfo); | |
205 | } | |
206 | ||
207 | /* | |
208 | * Fill in the inode based on the ncp_entry_info structure. | |
209 | */ | |
210 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) | |
211 | { | |
212 | struct ncp_server *server = NCP_SERVER(inode); | |
213 | ||
214 | NCP_FINFO(inode)->flags = 0; | |
215 | ||
216 | ncp_update_attrs(inode, nwinfo); | |
217 | ||
218 | DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); | |
219 | ||
220 | inode->i_nlink = 1; | |
221 | inode->i_uid = server->m.uid; | |
222 | inode->i_gid = server->m.gid; | |
1da177e4 LT |
223 | |
224 | ncp_update_dates(inode, &nwinfo->i); | |
225 | ncp_update_inode(inode, nwinfo); | |
226 | } | |
227 | ||
228 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
92e1d5be | 229 | static const struct inode_operations ncp_symlink_inode_operations = { |
1da177e4 LT |
230 | .readlink = generic_readlink, |
231 | .follow_link = page_follow_link_light, | |
232 | .put_link = page_put_link, | |
233 | .setattr = ncp_notify_change, | |
234 | }; | |
235 | #endif | |
236 | ||
237 | /* | |
238 | * Get a new inode. | |
239 | */ | |
240 | struct inode * | |
241 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) | |
242 | { | |
243 | struct inode *inode; | |
244 | ||
245 | if (info == NULL) { | |
246 | printk(KERN_ERR "ncp_iget: info is NULL\n"); | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | inode = new_inode(sb); | |
251 | if (inode) { | |
252 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); | |
253 | ||
254 | inode->i_ino = info->ino; | |
255 | ncp_set_attr(inode, info); | |
256 | if (S_ISREG(inode->i_mode)) { | |
257 | inode->i_op = &ncp_file_inode_operations; | |
258 | inode->i_fop = &ncp_file_operations; | |
259 | } else if (S_ISDIR(inode->i_mode)) { | |
260 | inode->i_op = &ncp_dir_inode_operations; | |
261 | inode->i_fop = &ncp_dir_operations; | |
262 | #ifdef CONFIG_NCPFS_NFS_NS | |
263 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
264 | init_special_inode(inode, inode->i_mode, | |
265 | new_decode_dev(info->i.nfs.rdev)); | |
266 | #endif | |
267 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
268 | } else if (S_ISLNK(inode->i_mode)) { | |
269 | inode->i_op = &ncp_symlink_inode_operations; | |
270 | inode->i_data.a_ops = &ncp_symlink_aops; | |
271 | #endif | |
272 | } else { | |
273 | make_bad_inode(inode); | |
274 | } | |
275 | insert_inode_hash(inode); | |
276 | } else | |
277 | printk(KERN_ERR "ncp_iget: iget failed!\n"); | |
278 | return inode; | |
279 | } | |
280 | ||
281 | static void | |
282 | ncp_delete_inode(struct inode *inode) | |
283 | { | |
fef26658 MF |
284 | truncate_inode_pages(&inode->i_data, 0); |
285 | ||
1da177e4 LT |
286 | if (S_ISDIR(inode->i_mode)) { |
287 | DDPRINTK("ncp_delete_inode: put directory %ld\n", inode->i_ino); | |
288 | } | |
289 | ||
290 | if (ncp_make_closed(inode) != 0) { | |
291 | /* We can't do anything but complain. */ | |
292 | printk(KERN_ERR "ncp_delete_inode: could not close\n"); | |
293 | } | |
294 | clear_inode(inode); | |
295 | } | |
296 | ||
297 | static void ncp_stop_tasks(struct ncp_server *server) { | |
298 | struct sock* sk = server->ncp_sock->sk; | |
299 | ||
300 | sk->sk_error_report = server->error_report; | |
301 | sk->sk_data_ready = server->data_ready; | |
302 | sk->sk_write_space = server->write_space; | |
303 | del_timer_sync(&server->timeout_tm); | |
304 | flush_scheduled_work(); | |
305 | } | |
306 | ||
307 | static const struct ncp_option ncp_opts[] = { | |
308 | { "uid", OPT_INT, 'u' }, | |
309 | { "gid", OPT_INT, 'g' }, | |
310 | { "owner", OPT_INT, 'o' }, | |
311 | { "mode", OPT_INT, 'm' }, | |
312 | { "dirmode", OPT_INT, 'd' }, | |
313 | { "timeout", OPT_INT, 't' }, | |
314 | { "retry", OPT_INT, 'r' }, | |
315 | { "flags", OPT_INT, 'f' }, | |
316 | { "wdogpid", OPT_INT, 'w' }, | |
317 | { "ncpfd", OPT_INT, 'n' }, | |
318 | { "infofd", OPT_INT, 'i' }, /* v5 */ | |
319 | { "version", OPT_INT, 'v' }, | |
320 | { NULL, 0, 0 } }; | |
321 | ||
322 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { | |
323 | int optval; | |
324 | char *optarg; | |
325 | unsigned long optint; | |
326 | int version = 0; | |
1de24126 | 327 | int ret; |
1da177e4 LT |
328 | |
329 | data->flags = 0; | |
330 | data->int_flags = 0; | |
331 | data->mounted_uid = 0; | |
2154227a | 332 | data->wdog_pid = NULL; |
1da177e4 LT |
333 | data->ncp_fd = ~0; |
334 | data->time_out = 10; | |
335 | data->retry_count = 20; | |
336 | data->uid = 0; | |
337 | data->gid = 0; | |
338 | data->file_mode = 0600; | |
339 | data->dir_mode = 0700; | |
340 | data->info_fd = -1; | |
341 | data->mounted_vol[0] = 0; | |
342 | ||
343 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { | |
1de24126 EB |
344 | ret = optval; |
345 | if (ret < 0) | |
346 | goto err; | |
1da177e4 LT |
347 | switch (optval) { |
348 | case 'u': | |
349 | data->uid = optint; | |
350 | break; | |
351 | case 'g': | |
352 | data->gid = optint; | |
353 | break; | |
354 | case 'o': | |
355 | data->mounted_uid = optint; | |
356 | break; | |
357 | case 'm': | |
358 | data->file_mode = optint; | |
359 | break; | |
360 | case 'd': | |
361 | data->dir_mode = optint; | |
362 | break; | |
363 | case 't': | |
364 | data->time_out = optint; | |
365 | break; | |
366 | case 'r': | |
367 | data->retry_count = optint; | |
368 | break; | |
369 | case 'f': | |
370 | data->flags = optint; | |
371 | break; | |
372 | case 'w': | |
2154227a | 373 | data->wdog_pid = find_get_pid(optint); |
1da177e4 LT |
374 | break; |
375 | case 'n': | |
376 | data->ncp_fd = optint; | |
377 | break; | |
378 | case 'i': | |
379 | data->info_fd = optint; | |
380 | break; | |
381 | case 'v': | |
1de24126 EB |
382 | ret = -ECHRNG; |
383 | if (optint < NCP_MOUNT_VERSION_V4) | |
384 | goto err; | |
385 | if (optint > NCP_MOUNT_VERSION_V5) | |
386 | goto err; | |
1da177e4 LT |
387 | version = optint; |
388 | break; | |
389 | ||
390 | } | |
391 | } | |
392 | return 0; | |
1de24126 EB |
393 | err: |
394 | put_pid(data->wdog_pid); | |
395 | data->wdog_pid = NULL; | |
396 | return ret; | |
1da177e4 LT |
397 | } |
398 | ||
399 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) | |
400 | { | |
401 | struct ncp_mount_data_kernel data; | |
402 | struct ncp_server *server; | |
403 | struct file *ncp_filp; | |
404 | struct inode *root_inode; | |
405 | struct inode *sock_inode; | |
406 | struct socket *sock; | |
407 | int error; | |
408 | int default_bufsize; | |
409 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
410 | int options; | |
411 | #endif | |
412 | struct ncp_entry_info finfo; | |
413 | ||
1de24126 | 414 | data.wdog_pid = NULL; |
f8314dc6 | 415 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
1da177e4 LT |
416 | if (!server) |
417 | return -ENOMEM; | |
418 | sb->s_fs_info = server; | |
1da177e4 LT |
419 | |
420 | error = -EFAULT; | |
421 | if (raw_data == NULL) | |
422 | goto out; | |
423 | switch (*(int*)raw_data) { | |
424 | case NCP_MOUNT_VERSION: | |
425 | { | |
426 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; | |
427 | ||
428 | data.flags = md->flags; | |
429 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; | |
430 | data.mounted_uid = md->mounted_uid; | |
2154227a | 431 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
432 | data.ncp_fd = md->ncp_fd; |
433 | data.time_out = md->time_out; | |
434 | data.retry_count = md->retry_count; | |
435 | data.uid = md->uid; | |
436 | data.gid = md->gid; | |
437 | data.file_mode = md->file_mode; | |
438 | data.dir_mode = md->dir_mode; | |
439 | data.info_fd = -1; | |
440 | memcpy(data.mounted_vol, md->mounted_vol, | |
441 | NCP_VOLNAME_LEN+1); | |
442 | } | |
443 | break; | |
444 | case NCP_MOUNT_VERSION_V4: | |
445 | { | |
446 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; | |
447 | ||
448 | data.flags = md->flags; | |
449 | data.int_flags = 0; | |
450 | data.mounted_uid = md->mounted_uid; | |
2154227a | 451 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
452 | data.ncp_fd = md->ncp_fd; |
453 | data.time_out = md->time_out; | |
454 | data.retry_count = md->retry_count; | |
455 | data.uid = md->uid; | |
456 | data.gid = md->gid; | |
457 | data.file_mode = md->file_mode; | |
458 | data.dir_mode = md->dir_mode; | |
459 | data.info_fd = -1; | |
460 | data.mounted_vol[0] = 0; | |
461 | } | |
462 | break; | |
463 | default: | |
464 | error = -ECHRNG; | |
465 | if (memcmp(raw_data, "vers", 4) == 0) { | |
466 | error = ncp_parse_options(&data, raw_data); | |
467 | } | |
468 | if (error) | |
469 | goto out; | |
470 | break; | |
471 | } | |
472 | error = -EBADF; | |
473 | ncp_filp = fget(data.ncp_fd); | |
474 | if (!ncp_filp) | |
475 | goto out; | |
476 | error = -ENOTSOCK; | |
92e5baef | 477 | sock_inode = ncp_filp->f_path.dentry->d_inode; |
1da177e4 LT |
478 | if (!S_ISSOCK(sock_inode->i_mode)) |
479 | goto out_fput; | |
480 | sock = SOCKET_I(sock_inode); | |
481 | if (!sock) | |
482 | goto out_fput; | |
483 | ||
484 | if (sock->type == SOCK_STREAM) | |
485 | default_bufsize = 0xF000; | |
486 | else | |
487 | default_bufsize = 1024; | |
488 | ||
489 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ | |
490 | sb->s_maxbytes = 0xFFFFFFFFU; | |
491 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ | |
492 | sb->s_blocksize_bits = 10; | |
493 | sb->s_magic = NCP_SUPER_MAGIC; | |
494 | sb->s_op = &ncp_sops; | |
495 | ||
496 | server = NCP_SBP(sb); | |
497 | memset(server, 0, sizeof(*server)); | |
498 | ||
499 | server->ncp_filp = ncp_filp; | |
500 | server->ncp_sock = sock; | |
501 | ||
502 | if (data.info_fd != -1) { | |
503 | struct socket *info_sock; | |
504 | ||
505 | error = -EBADF; | |
506 | server->info_filp = fget(data.info_fd); | |
507 | if (!server->info_filp) | |
508 | goto out_fput; | |
509 | error = -ENOTSOCK; | |
92e5baef | 510 | sock_inode = server->info_filp->f_path.dentry->d_inode; |
1da177e4 LT |
511 | if (!S_ISSOCK(sock_inode->i_mode)) |
512 | goto out_fput2; | |
513 | info_sock = SOCKET_I(sock_inode); | |
514 | if (!info_sock) | |
515 | goto out_fput2; | |
516 | error = -EBADFD; | |
517 | if (info_sock->type != SOCK_STREAM) | |
518 | goto out_fput2; | |
519 | server->info_sock = info_sock; | |
520 | } | |
521 | ||
522 | /* server->lock = 0; */ | |
8e3f9045 | 523 | mutex_init(&server->mutex); |
1da177e4 LT |
524 | server->packet = NULL; |
525 | /* server->buffer_size = 0; */ | |
526 | /* server->conn_status = 0; */ | |
527 | /* server->root_dentry = NULL; */ | |
528 | /* server->root_setuped = 0; */ | |
529 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
530 | /* server->sign_wanted = 0; */ | |
531 | /* server->sign_active = 0; */ | |
532 | #endif | |
533 | server->auth.auth_type = NCP_AUTH_NONE; | |
534 | /* server->auth.object_name_len = 0; */ | |
535 | /* server->auth.object_name = NULL; */ | |
536 | /* server->auth.object_type = 0; */ | |
537 | /* server->priv.len = 0; */ | |
538 | /* server->priv.data = NULL; */ | |
539 | ||
540 | server->m = data; | |
541 | /* Althought anything producing this is buggy, it happens | |
542 | now because of PATH_MAX changes.. */ | |
543 | if (server->m.time_out < 1) { | |
544 | server->m.time_out = 10; | |
545 | printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); | |
546 | } | |
547 | server->m.time_out = server->m.time_out * HZ / 100; | |
548 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; | |
549 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; | |
550 | ||
551 | #ifdef CONFIG_NCPFS_NLS | |
552 | /* load the default NLS charsets */ | |
553 | server->nls_vol = load_nls_default(); | |
554 | server->nls_io = load_nls_default(); | |
555 | #endif /* CONFIG_NCPFS_NLS */ | |
556 | ||
557 | server->dentry_ttl = 0; /* no caching */ | |
558 | ||
559 | INIT_LIST_HEAD(&server->tx.requests); | |
8e3f9045 | 560 | mutex_init(&server->rcv.creq_mutex); |
1da177e4 LT |
561 | server->tx.creq = NULL; |
562 | server->rcv.creq = NULL; | |
563 | server->data_ready = sock->sk->sk_data_ready; | |
564 | server->write_space = sock->sk->sk_write_space; | |
565 | server->error_report = sock->sk->sk_error_report; | |
566 | sock->sk->sk_user_data = server; | |
567 | ||
568 | init_timer(&server->timeout_tm); | |
569 | #undef NCP_PACKET_SIZE | |
570 | #define NCP_PACKET_SIZE 131072 | |
571 | error = -ENOMEM; | |
572 | server->packet_size = NCP_PACKET_SIZE; | |
573 | server->packet = vmalloc(NCP_PACKET_SIZE); | |
574 | if (server->packet == NULL) | |
575 | goto out_nls; | |
c5f93cf1 PO |
576 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
577 | if (server->txbuf == NULL) | |
578 | goto out_packet; | |
579 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); | |
580 | if (server->rxbuf == NULL) | |
581 | goto out_txbuf; | |
1da177e4 LT |
582 | |
583 | sock->sk->sk_data_ready = ncp_tcp_data_ready; | |
584 | sock->sk->sk_error_report = ncp_tcp_error_report; | |
585 | if (sock->type == SOCK_STREAM) { | |
586 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; | |
587 | server->rcv.len = 10; | |
588 | server->rcv.state = 0; | |
c4028958 DH |
589 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
590 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); | |
1da177e4 LT |
591 | sock->sk->sk_write_space = ncp_tcp_write_space; |
592 | } else { | |
c4028958 DH |
593 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
594 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); | |
1da177e4 LT |
595 | server->timeout_tm.data = (unsigned long)server; |
596 | server->timeout_tm.function = ncpdgram_timeout_call; | |
597 | } | |
598 | ||
599 | ncp_lock_server(server); | |
600 | error = ncp_connect(server); | |
601 | ncp_unlock_server(server); | |
602 | if (error < 0) | |
c5f93cf1 | 603 | goto out_rxbuf; |
1da177e4 LT |
604 | DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
605 | ||
606 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ | |
607 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
608 | if (ncp_negotiate_size_and_options(server, default_bufsize, | |
609 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) | |
610 | { | |
611 | if (options != NCP_DEFAULT_OPTIONS) | |
612 | { | |
613 | if (ncp_negotiate_size_and_options(server, | |
614 | default_bufsize, | |
615 | options & 2, | |
616 | &(server->buffer_size), &options) != 0) | |
617 | ||
618 | { | |
619 | goto out_disconnect; | |
620 | } | |
621 | } | |
622 | if (options & 2) | |
623 | server->sign_wanted = 1; | |
624 | } | |
625 | else | |
626 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ | |
627 | if (ncp_negotiate_buffersize(server, default_bufsize, | |
628 | &(server->buffer_size)) != 0) | |
629 | goto out_disconnect; | |
630 | DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); | |
631 | ||
632 | memset(&finfo, 0, sizeof(finfo)); | |
633 | finfo.i.attributes = aDIR; | |
634 | finfo.i.dataStreamSize = 0; /* ignored */ | |
635 | finfo.i.dirEntNum = 0; | |
636 | finfo.i.DosDirNum = 0; | |
637 | #ifdef CONFIG_NCPFS_SMALLDOS | |
638 | finfo.i.NSCreator = NW_NS_DOS; | |
639 | #endif | |
640 | finfo.volume = NCP_NUMBER_OF_VOLUMES; | |
641 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ | |
642 | finfo.i.creationTime = finfo.i.modifyTime | |
643 | = cpu_to_le16(0x0000); | |
644 | finfo.i.creationDate = finfo.i.modifyDate | |
645 | = finfo.i.lastAccessDate | |
646 | = cpu_to_le16(0x0C21); | |
647 | finfo.i.nameLen = 0; | |
648 | finfo.i.entryName[0] = '\0'; | |
649 | ||
650 | finfo.opened = 0; | |
651 | finfo.ino = 2; /* tradition */ | |
652 | ||
653 | server->name_space[finfo.volume] = NW_NS_DOS; | |
654 | ||
655 | error = -ENOMEM; | |
656 | root_inode = ncp_iget(sb, &finfo); | |
657 | if (!root_inode) | |
658 | goto out_disconnect; | |
659 | DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); | |
660 | sb->s_root = d_alloc_root(root_inode); | |
661 | if (!sb->s_root) | |
662 | goto out_no_root; | |
663 | sb->s_root->d_op = &ncp_root_dentry_operations; | |
664 | return 0; | |
665 | ||
666 | out_no_root: | |
667 | iput(root_inode); | |
668 | out_disconnect: | |
669 | ncp_lock_server(server); | |
670 | ncp_disconnect(server); | |
671 | ncp_unlock_server(server); | |
c5f93cf1 | 672 | out_rxbuf: |
1da177e4 | 673 | ncp_stop_tasks(server); |
c5f93cf1 PO |
674 | vfree(server->rxbuf); |
675 | out_txbuf: | |
676 | vfree(server->txbuf); | |
677 | out_packet: | |
1da177e4 LT |
678 | vfree(server->packet); |
679 | out_nls: | |
680 | #ifdef CONFIG_NCPFS_NLS | |
681 | unload_nls(server->nls_io); | |
682 | unload_nls(server->nls_vol); | |
683 | #endif | |
684 | out_fput2: | |
685 | if (server->info_filp) | |
686 | fput(server->info_filp); | |
687 | out_fput: | |
688 | /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: | |
689 | * | |
690 | * The previously used put_filp(ncp_filp); was bogous, since | |
691 | * it doesn't proper unlocking. | |
692 | */ | |
693 | fput(ncp_filp); | |
694 | out: | |
1de24126 | 695 | put_pid(data.wdog_pid); |
1da177e4 LT |
696 | sb->s_fs_info = NULL; |
697 | kfree(server); | |
698 | return error; | |
699 | } | |
700 | ||
701 | static void ncp_put_super(struct super_block *sb) | |
702 | { | |
703 | struct ncp_server *server = NCP_SBP(sb); | |
704 | ||
705 | ncp_lock_server(server); | |
706 | ncp_disconnect(server); | |
707 | ncp_unlock_server(server); | |
708 | ||
709 | ncp_stop_tasks(server); | |
710 | ||
711 | #ifdef CONFIG_NCPFS_NLS | |
712 | /* unload the NLS charsets */ | |
713 | if (server->nls_vol) | |
714 | { | |
715 | unload_nls(server->nls_vol); | |
716 | server->nls_vol = NULL; | |
717 | } | |
718 | if (server->nls_io) | |
719 | { | |
720 | unload_nls(server->nls_io); | |
721 | server->nls_io = NULL; | |
722 | } | |
723 | #endif /* CONFIG_NCPFS_NLS */ | |
724 | ||
725 | if (server->info_filp) | |
726 | fput(server->info_filp); | |
727 | fput(server->ncp_filp); | |
2154227a EB |
728 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
729 | put_pid(server->m.wdog_pid); | |
1da177e4 | 730 | |
44db77f3 PE |
731 | kfree(server->priv.data); |
732 | kfree(server->auth.object_name); | |
c5f93cf1 PO |
733 | vfree(server->rxbuf); |
734 | vfree(server->txbuf); | |
1da177e4 LT |
735 | vfree(server->packet); |
736 | sb->s_fs_info = NULL; | |
737 | kfree(server); | |
738 | } | |
739 | ||
726c3342 | 740 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 LT |
741 | { |
742 | struct dentry* d; | |
743 | struct inode* i; | |
744 | struct ncp_inode_info* ni; | |
745 | struct ncp_server* s; | |
746 | struct ncp_volume_info vi; | |
726c3342 | 747 | struct super_block *sb = dentry->d_sb; |
1da177e4 LT |
748 | int err; |
749 | __u8 dh; | |
750 | ||
751 | d = sb->s_root; | |
752 | if (!d) { | |
753 | goto dflt; | |
754 | } | |
755 | i = d->d_inode; | |
756 | if (!i) { | |
757 | goto dflt; | |
758 | } | |
759 | ni = NCP_FINFO(i); | |
760 | if (!ni) { | |
761 | goto dflt; | |
762 | } | |
763 | s = NCP_SBP(sb); | |
764 | if (!s) { | |
765 | goto dflt; | |
766 | } | |
767 | if (!s->m.mounted_vol[0]) { | |
768 | goto dflt; | |
769 | } | |
770 | ||
771 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); | |
772 | if (err) { | |
773 | goto dflt; | |
774 | } | |
775 | err = ncp_get_directory_info(s, dh, &vi); | |
776 | ncp_dirhandle_free(s, dh); | |
777 | if (err) { | |
778 | goto dflt; | |
779 | } | |
780 | buf->f_type = NCP_SUPER_MAGIC; | |
781 | buf->f_bsize = vi.sectors_per_block * 512; | |
782 | buf->f_blocks = vi.total_blocks; | |
783 | buf->f_bfree = vi.free_blocks; | |
784 | buf->f_bavail = vi.free_blocks; | |
785 | buf->f_files = vi.total_dir_entries; | |
786 | buf->f_ffree = vi.available_dir_entries; | |
787 | buf->f_namelen = 12; | |
788 | return 0; | |
789 | ||
790 | /* We cannot say how much disk space is left on a mounted | |
791 | NetWare Server, because free space is distributed over | |
792 | volumes, and the current user might have disk quotas. So | |
793 | free space is not that simple to determine. Our decision | |
794 | here is to err conservatively. */ | |
795 | ||
796 | dflt:; | |
797 | buf->f_type = NCP_SUPER_MAGIC; | |
798 | buf->f_bsize = NCP_BLOCK_SIZE; | |
799 | buf->f_blocks = 0; | |
800 | buf->f_bfree = 0; | |
801 | buf->f_bavail = 0; | |
802 | buf->f_namelen = 12; | |
803 | return 0; | |
804 | } | |
805 | ||
806 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) | |
807 | { | |
808 | struct inode *inode = dentry->d_inode; | |
809 | int result = 0; | |
810 | __le32 info_mask; | |
811 | struct nw_modify_dos_info info; | |
812 | struct ncp_server *server; | |
813 | ||
814 | result = -EIO; | |
815 | ||
816 | lock_kernel(); | |
817 | ||
818 | server = NCP_SERVER(inode); | |
819 | if ((!server) || !ncp_conn_valid(server)) | |
820 | goto out; | |
821 | ||
822 | /* ageing the dentry to force validation */ | |
823 | ncp_age_dentry(server, dentry); | |
824 | ||
825 | result = inode_change_ok(inode, attr); | |
826 | if (result < 0) | |
827 | goto out; | |
828 | ||
829 | result = -EPERM; | |
830 | if (((attr->ia_valid & ATTR_UID) && | |
831 | (attr->ia_uid != server->m.uid))) | |
832 | goto out; | |
833 | ||
834 | if (((attr->ia_valid & ATTR_GID) && | |
835 | (attr->ia_gid != server->m.gid))) | |
836 | goto out; | |
837 | ||
838 | if (((attr->ia_valid & ATTR_MODE) && | |
839 | (attr->ia_mode & | |
840 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) | |
841 | goto out; | |
842 | ||
843 | info_mask = 0; | |
844 | memset(&info, 0, sizeof(info)); | |
845 | ||
846 | #if 1 | |
847 | if ((attr->ia_valid & ATTR_MODE) != 0) | |
848 | { | |
849 | umode_t newmode = attr->ia_mode; | |
850 | ||
851 | info_mask |= DM_ATTRIBUTES; | |
852 | ||
853 | if (S_ISDIR(inode->i_mode)) { | |
854 | newmode &= server->m.dir_mode; | |
855 | } else { | |
856 | #ifdef CONFIG_NCPFS_EXTRAS | |
857 | if (server->m.flags & NCP_MOUNT_EXTRAS) { | |
858 | /* any non-default execute bit set */ | |
859 | if (newmode & ~server->m.file_mode & S_IXUGO) | |
860 | info.attributes |= aSHARED | aSYSTEM; | |
861 | /* read for group/world and not in default file_mode */ | |
862 | else if (newmode & ~server->m.file_mode & S_IRUGO) | |
863 | info.attributes |= aSHARED; | |
864 | } else | |
865 | #endif | |
866 | newmode &= server->m.file_mode; | |
867 | } | |
868 | if (newmode & S_IWUGO) | |
869 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
870 | else | |
871 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
872 | ||
873 | #ifdef CONFIG_NCPFS_NFS_NS | |
874 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { | |
875 | result = ncp_modify_nfs_info(server, | |
876 | NCP_FINFO(inode)->volNumber, | |
877 | NCP_FINFO(inode)->dirEntNum, | |
878 | attr->ia_mode, 0); | |
879 | if (result != 0) | |
880 | goto out; | |
881 | info.attributes &= ~(aSHARED | aSYSTEM); | |
882 | { | |
883 | /* mark partial success */ | |
884 | struct iattr tmpattr; | |
885 | ||
886 | tmpattr.ia_valid = ATTR_MODE; | |
887 | tmpattr.ia_mode = attr->ia_mode; | |
888 | ||
889 | result = inode_setattr(inode, &tmpattr); | |
890 | if (result) | |
891 | goto out; | |
892 | } | |
893 | } | |
894 | #endif | |
895 | } | |
896 | #endif | |
897 | ||
898 | /* Do SIZE before attributes, otherwise mtime together with size does not work... | |
899 | */ | |
900 | if ((attr->ia_valid & ATTR_SIZE) != 0) { | |
901 | int written; | |
902 | ||
903 | DPRINTK("ncpfs: trying to change size to %ld\n", | |
904 | attr->ia_size); | |
905 | ||
906 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { | |
907 | result = -EACCES; | |
908 | goto out; | |
909 | } | |
910 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, | |
911 | attr->ia_size, 0, "", &written); | |
912 | ||
913 | /* According to ndir, the changes only take effect after | |
914 | closing the file */ | |
915 | ncp_inode_close(inode); | |
916 | result = ncp_make_closed(inode); | |
917 | if (result) | |
918 | goto out; | |
919 | { | |
920 | struct iattr tmpattr; | |
921 | ||
922 | tmpattr.ia_valid = ATTR_SIZE; | |
923 | tmpattr.ia_size = attr->ia_size; | |
924 | ||
925 | result = inode_setattr(inode, &tmpattr); | |
926 | if (result) | |
927 | goto out; | |
928 | } | |
929 | } | |
930 | if ((attr->ia_valid & ATTR_CTIME) != 0) { | |
931 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); | |
932 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, | |
933 | &info.creationTime, &info.creationDate); | |
934 | } | |
935 | if ((attr->ia_valid & ATTR_MTIME) != 0) { | |
936 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); | |
937 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, | |
938 | &info.modifyTime, &info.modifyDate); | |
939 | } | |
940 | if ((attr->ia_valid & ATTR_ATIME) != 0) { | |
941 | __le16 dummy; | |
942 | info_mask |= (DM_LAST_ACCESS_DATE); | |
943 | ncp_date_unix2dos(attr->ia_atime.tv_sec, | |
944 | &dummy, &info.lastAccessDate); | |
945 | } | |
946 | if (info_mask != 0) { | |
947 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), | |
948 | inode, info_mask, &info); | |
949 | if (result != 0) { | |
950 | result = -EACCES; | |
951 | ||
952 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { | |
953 | /* NetWare seems not to allow this. I | |
954 | do not know why. So, just tell the | |
955 | user everything went fine. This is | |
956 | a terrible hack, but I do not know | |
957 | how to do this correctly. */ | |
958 | result = 0; | |
959 | } else | |
960 | goto out; | |
961 | } | |
962 | #ifdef CONFIG_NCPFS_STRONG | |
963 | if ((!result) && (info_mask & DM_ATTRIBUTES)) | |
964 | NCP_FINFO(inode)->nwattr = info.attributes; | |
965 | #endif | |
966 | } | |
967 | if (!result) | |
968 | result = inode_setattr(inode, attr); | |
969 | out: | |
970 | unlock_kernel(); | |
971 | return result; | |
972 | } | |
973 | ||
454e2398 DH |
974 | static int ncp_get_sb(struct file_system_type *fs_type, |
975 | int flags, const char *dev_name, void *data, struct vfsmount *mnt) | |
1da177e4 | 976 | { |
454e2398 | 977 | return get_sb_nodev(fs_type, flags, data, ncp_fill_super, mnt); |
1da177e4 LT |
978 | } |
979 | ||
980 | static struct file_system_type ncp_fs_type = { | |
981 | .owner = THIS_MODULE, | |
982 | .name = "ncpfs", | |
983 | .get_sb = ncp_get_sb, | |
984 | .kill_sb = kill_anon_super, | |
985 | }; | |
986 | ||
987 | static int __init init_ncp_fs(void) | |
988 | { | |
989 | int err; | |
990 | DPRINTK("ncpfs: init_module called\n"); | |
991 | ||
1da177e4 LT |
992 | err = init_inodecache(); |
993 | if (err) | |
994 | goto out1; | |
995 | err = register_filesystem(&ncp_fs_type); | |
996 | if (err) | |
997 | goto out; | |
998 | return 0; | |
999 | out: | |
1000 | destroy_inodecache(); | |
1001 | out1: | |
1002 | return err; | |
1003 | } | |
1004 | ||
1005 | static void __exit exit_ncp_fs(void) | |
1006 | { | |
1007 | DPRINTK("ncpfs: cleanup_module called\n"); | |
1008 | unregister_filesystem(&ncp_fs_type); | |
1009 | destroy_inodecache(); | |
1da177e4 LT |
1010 | } |
1011 | ||
1012 | module_init(init_ncp_fs) | |
1013 | module_exit(exit_ncp_fs) | |
1014 | MODULE_LICENSE("GPL"); |