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 | ||
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 | ||
50953fe9 | 63 | if (flags & SLAB_CTOR_CONSTRUCTOR) { |
8e3f9045 | 64 | mutex_init(&ei->open_mutex); |
1da177e4 LT |
65 | inode_init_once(&ei->vfs_inode); |
66 | } | |
67 | } | |
68 | ||
69 | static int init_inodecache(void) | |
70 | { | |
71 | ncp_inode_cachep = kmem_cache_create("ncp_inode_cache", | |
72 | sizeof(struct ncp_inode_info), | |
fffb60f9 PJ |
73 | 0, (SLAB_RECLAIM_ACCOUNT| |
74 | SLAB_MEM_SPREAD), | |
1da177e4 LT |
75 | init_once, NULL); |
76 | if (ncp_inode_cachep == NULL) | |
77 | return -ENOMEM; | |
78 | return 0; | |
79 | } | |
80 | ||
81 | static void destroy_inodecache(void) | |
82 | { | |
1a1d92c1 | 83 | kmem_cache_destroy(ncp_inode_cachep); |
1da177e4 LT |
84 | } |
85 | ||
86 | static int ncp_remount(struct super_block *sb, int *flags, char* data) | |
87 | { | |
88 | *flags |= MS_NODIRATIME; | |
89 | return 0; | |
90 | } | |
91 | ||
ee9b6d61 | 92 | static const struct super_operations ncp_sops = |
1da177e4 LT |
93 | { |
94 | .alloc_inode = ncp_alloc_inode, | |
95 | .destroy_inode = ncp_destroy_inode, | |
96 | .drop_inode = generic_delete_inode, | |
97 | .delete_inode = ncp_delete_inode, | |
98 | .put_super = ncp_put_super, | |
99 | .statfs = ncp_statfs, | |
100 | .remount_fs = ncp_remount, | |
101 | }; | |
102 | ||
103 | extern struct dentry_operations ncp_root_dentry_operations; | |
104 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
f5e54d6e | 105 | extern const struct address_space_operations ncp_symlink_aops; |
1da177e4 LT |
106 | extern int ncp_symlink(struct inode*, struct dentry*, const char*); |
107 | #endif | |
108 | ||
109 | /* | |
110 | * Fill in the ncpfs-specific information in the inode. | |
111 | */ | |
112 | static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo) | |
113 | { | |
114 | NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum; | |
115 | NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum; | |
116 | NCP_FINFO(inode)->volNumber = nwinfo->volume; | |
117 | } | |
118 | ||
119 | void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo) | |
120 | { | |
121 | ncp_update_dirent(inode, nwinfo); | |
122 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
123 | NCP_FINFO(inode)->access = nwinfo->access; | |
124 | memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle, | |
125 | sizeof(nwinfo->file_handle)); | |
126 | DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n", | |
127 | nwinfo->i.entryName, NCP_FINFO(inode)->volNumber, | |
128 | NCP_FINFO(inode)->dirEntNum); | |
129 | } | |
130 | ||
131 | static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi) | |
132 | { | |
133 | /* NFS namespace mode overrides others if it's set. */ | |
134 | DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n", | |
135 | nwi->entryName, nwi->nfs.mode); | |
136 | if (nwi->nfs.mode) { | |
137 | /* XXX Security? */ | |
138 | inode->i_mode = nwi->nfs.mode; | |
139 | } | |
140 | ||
141 | inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT; | |
142 | ||
143 | inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate); | |
144 | inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate); | |
145 | inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate); | |
146 | inode->i_atime.tv_nsec = 0; | |
147 | inode->i_mtime.tv_nsec = 0; | |
148 | inode->i_ctime.tv_nsec = 0; | |
149 | } | |
150 | ||
151 | static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo) | |
152 | { | |
153 | struct nw_info_struct *nwi = &nwinfo->i; | |
154 | struct ncp_server *server = NCP_SERVER(inode); | |
155 | ||
156 | if (nwi->attributes & aDIR) { | |
157 | inode->i_mode = server->m.dir_mode; | |
158 | /* for directories dataStreamSize seems to be some | |
159 | Object ID ??? */ | |
160 | inode->i_size = NCP_BLOCK_SIZE; | |
161 | } else { | |
162 | inode->i_mode = server->m.file_mode; | |
163 | inode->i_size = le32_to_cpu(nwi->dataStreamSize); | |
164 | #ifdef CONFIG_NCPFS_EXTRAS | |
165 | if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS)) | |
166 | && (nwi->attributes & aSHARED)) { | |
167 | switch (nwi->attributes & (aHIDDEN|aSYSTEM)) { | |
168 | case aHIDDEN: | |
169 | if (server->m.flags & NCP_MOUNT_SYMLINKS) { | |
170 | if (/* (inode->i_size >= NCP_MIN_SYMLINK_SIZE) | |
171 | && */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) { | |
172 | inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK; | |
173 | NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK; | |
174 | break; | |
175 | } | |
176 | } | |
177 | /* FALLTHROUGH */ | |
178 | case 0: | |
179 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
180 | inode->i_mode |= S_IRUGO; | |
181 | break; | |
182 | case aSYSTEM: | |
183 | if (server->m.flags & NCP_MOUNT_EXTRAS) | |
184 | inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO; | |
185 | break; | |
186 | /* case aSYSTEM|aHIDDEN: */ | |
187 | default: | |
188 | /* reserved combination */ | |
189 | break; | |
190 | } | |
191 | } | |
192 | #endif | |
193 | } | |
194 | if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO; | |
195 | } | |
196 | ||
197 | void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo) | |
198 | { | |
199 | NCP_FINFO(inode)->flags = 0; | |
200 | if (!atomic_read(&NCP_FINFO(inode)->opened)) { | |
201 | NCP_FINFO(inode)->nwattr = nwinfo->i.attributes; | |
202 | ncp_update_attrs(inode, nwinfo); | |
203 | } | |
204 | ||
205 | ncp_update_dates(inode, &nwinfo->i); | |
206 | ncp_update_dirent(inode, nwinfo); | |
207 | } | |
208 | ||
209 | /* | |
210 | * Fill in the inode based on the ncp_entry_info structure. | |
211 | */ | |
212 | static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo) | |
213 | { | |
214 | struct ncp_server *server = NCP_SERVER(inode); | |
215 | ||
216 | NCP_FINFO(inode)->flags = 0; | |
217 | ||
218 | ncp_update_attrs(inode, nwinfo); | |
219 | ||
220 | DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode); | |
221 | ||
222 | inode->i_nlink = 1; | |
223 | inode->i_uid = server->m.uid; | |
224 | inode->i_gid = server->m.gid; | |
1da177e4 LT |
225 | |
226 | ncp_update_dates(inode, &nwinfo->i); | |
227 | ncp_update_inode(inode, nwinfo); | |
228 | } | |
229 | ||
230 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
92e1d5be | 231 | static const struct inode_operations ncp_symlink_inode_operations = { |
1da177e4 LT |
232 | .readlink = generic_readlink, |
233 | .follow_link = page_follow_link_light, | |
234 | .put_link = page_put_link, | |
235 | .setattr = ncp_notify_change, | |
236 | }; | |
237 | #endif | |
238 | ||
239 | /* | |
240 | * Get a new inode. | |
241 | */ | |
242 | struct inode * | |
243 | ncp_iget(struct super_block *sb, struct ncp_entry_info *info) | |
244 | { | |
245 | struct inode *inode; | |
246 | ||
247 | if (info == NULL) { | |
248 | printk(KERN_ERR "ncp_iget: info is NULL\n"); | |
249 | return NULL; | |
250 | } | |
251 | ||
252 | inode = new_inode(sb); | |
253 | if (inode) { | |
254 | atomic_set(&NCP_FINFO(inode)->opened, info->opened); | |
255 | ||
256 | inode->i_ino = info->ino; | |
257 | ncp_set_attr(inode, info); | |
258 | if (S_ISREG(inode->i_mode)) { | |
259 | inode->i_op = &ncp_file_inode_operations; | |
260 | inode->i_fop = &ncp_file_operations; | |
261 | } else if (S_ISDIR(inode->i_mode)) { | |
262 | inode->i_op = &ncp_dir_inode_operations; | |
263 | inode->i_fop = &ncp_dir_operations; | |
264 | #ifdef CONFIG_NCPFS_NFS_NS | |
265 | } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { | |
266 | init_special_inode(inode, inode->i_mode, | |
267 | new_decode_dev(info->i.nfs.rdev)); | |
268 | #endif | |
269 | #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) | |
270 | } else if (S_ISLNK(inode->i_mode)) { | |
271 | inode->i_op = &ncp_symlink_inode_operations; | |
272 | inode->i_data.a_ops = &ncp_symlink_aops; | |
273 | #endif | |
274 | } else { | |
275 | make_bad_inode(inode); | |
276 | } | |
277 | insert_inode_hash(inode); | |
278 | } else | |
279 | printk(KERN_ERR "ncp_iget: iget failed!\n"); | |
280 | return inode; | |
281 | } | |
282 | ||
283 | static void | |
284 | ncp_delete_inode(struct inode *inode) | |
285 | { | |
fef26658 MF |
286 | truncate_inode_pages(&inode->i_data, 0); |
287 | ||
1da177e4 LT |
288 | if (S_ISDIR(inode->i_mode)) { |
289 | DDPRINTK("ncp_delete_inode: put directory %ld\n", inode->i_ino); | |
290 | } | |
291 | ||
292 | if (ncp_make_closed(inode) != 0) { | |
293 | /* We can't do anything but complain. */ | |
294 | printk(KERN_ERR "ncp_delete_inode: could not close\n"); | |
295 | } | |
296 | clear_inode(inode); | |
297 | } | |
298 | ||
299 | static void ncp_stop_tasks(struct ncp_server *server) { | |
300 | struct sock* sk = server->ncp_sock->sk; | |
301 | ||
302 | sk->sk_error_report = server->error_report; | |
303 | sk->sk_data_ready = server->data_ready; | |
304 | sk->sk_write_space = server->write_space; | |
305 | del_timer_sync(&server->timeout_tm); | |
306 | flush_scheduled_work(); | |
307 | } | |
308 | ||
309 | static const struct ncp_option ncp_opts[] = { | |
310 | { "uid", OPT_INT, 'u' }, | |
311 | { "gid", OPT_INT, 'g' }, | |
312 | { "owner", OPT_INT, 'o' }, | |
313 | { "mode", OPT_INT, 'm' }, | |
314 | { "dirmode", OPT_INT, 'd' }, | |
315 | { "timeout", OPT_INT, 't' }, | |
316 | { "retry", OPT_INT, 'r' }, | |
317 | { "flags", OPT_INT, 'f' }, | |
318 | { "wdogpid", OPT_INT, 'w' }, | |
319 | { "ncpfd", OPT_INT, 'n' }, | |
320 | { "infofd", OPT_INT, 'i' }, /* v5 */ | |
321 | { "version", OPT_INT, 'v' }, | |
322 | { NULL, 0, 0 } }; | |
323 | ||
324 | static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) { | |
325 | int optval; | |
326 | char *optarg; | |
327 | unsigned long optint; | |
328 | int version = 0; | |
1de24126 | 329 | int ret; |
1da177e4 LT |
330 | |
331 | data->flags = 0; | |
332 | data->int_flags = 0; | |
333 | data->mounted_uid = 0; | |
2154227a | 334 | data->wdog_pid = NULL; |
1da177e4 LT |
335 | data->ncp_fd = ~0; |
336 | data->time_out = 10; | |
337 | data->retry_count = 20; | |
338 | data->uid = 0; | |
339 | data->gid = 0; | |
340 | data->file_mode = 0600; | |
341 | data->dir_mode = 0700; | |
342 | data->info_fd = -1; | |
343 | data->mounted_vol[0] = 0; | |
344 | ||
345 | while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) { | |
1de24126 EB |
346 | ret = optval; |
347 | if (ret < 0) | |
348 | goto err; | |
1da177e4 LT |
349 | switch (optval) { |
350 | case 'u': | |
351 | data->uid = optint; | |
352 | break; | |
353 | case 'g': | |
354 | data->gid = optint; | |
355 | break; | |
356 | case 'o': | |
357 | data->mounted_uid = optint; | |
358 | break; | |
359 | case 'm': | |
360 | data->file_mode = optint; | |
361 | break; | |
362 | case 'd': | |
363 | data->dir_mode = optint; | |
364 | break; | |
365 | case 't': | |
366 | data->time_out = optint; | |
367 | break; | |
368 | case 'r': | |
369 | data->retry_count = optint; | |
370 | break; | |
371 | case 'f': | |
372 | data->flags = optint; | |
373 | break; | |
374 | case 'w': | |
2154227a | 375 | data->wdog_pid = find_get_pid(optint); |
1da177e4 LT |
376 | break; |
377 | case 'n': | |
378 | data->ncp_fd = optint; | |
379 | break; | |
380 | case 'i': | |
381 | data->info_fd = optint; | |
382 | break; | |
383 | case 'v': | |
1de24126 EB |
384 | ret = -ECHRNG; |
385 | if (optint < NCP_MOUNT_VERSION_V4) | |
386 | goto err; | |
387 | if (optint > NCP_MOUNT_VERSION_V5) | |
388 | goto err; | |
1da177e4 LT |
389 | version = optint; |
390 | break; | |
391 | ||
392 | } | |
393 | } | |
394 | return 0; | |
1de24126 EB |
395 | err: |
396 | put_pid(data->wdog_pid); | |
397 | data->wdog_pid = NULL; | |
398 | return ret; | |
1da177e4 LT |
399 | } |
400 | ||
401 | static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent) | |
402 | { | |
403 | struct ncp_mount_data_kernel data; | |
404 | struct ncp_server *server; | |
405 | struct file *ncp_filp; | |
406 | struct inode *root_inode; | |
407 | struct inode *sock_inode; | |
408 | struct socket *sock; | |
409 | int error; | |
410 | int default_bufsize; | |
411 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
412 | int options; | |
413 | #endif | |
414 | struct ncp_entry_info finfo; | |
415 | ||
1de24126 | 416 | data.wdog_pid = NULL; |
f8314dc6 | 417 | server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); |
1da177e4 LT |
418 | if (!server) |
419 | return -ENOMEM; | |
420 | sb->s_fs_info = server; | |
1da177e4 LT |
421 | |
422 | error = -EFAULT; | |
423 | if (raw_data == NULL) | |
424 | goto out; | |
425 | switch (*(int*)raw_data) { | |
426 | case NCP_MOUNT_VERSION: | |
427 | { | |
428 | struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data; | |
429 | ||
430 | data.flags = md->flags; | |
431 | data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE; | |
432 | data.mounted_uid = md->mounted_uid; | |
2154227a | 433 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
434 | data.ncp_fd = md->ncp_fd; |
435 | data.time_out = md->time_out; | |
436 | data.retry_count = md->retry_count; | |
437 | data.uid = md->uid; | |
438 | data.gid = md->gid; | |
439 | data.file_mode = md->file_mode; | |
440 | data.dir_mode = md->dir_mode; | |
441 | data.info_fd = -1; | |
442 | memcpy(data.mounted_vol, md->mounted_vol, | |
443 | NCP_VOLNAME_LEN+1); | |
444 | } | |
445 | break; | |
446 | case NCP_MOUNT_VERSION_V4: | |
447 | { | |
448 | struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data; | |
449 | ||
450 | data.flags = md->flags; | |
451 | data.int_flags = 0; | |
452 | data.mounted_uid = md->mounted_uid; | |
2154227a | 453 | data.wdog_pid = find_get_pid(md->wdog_pid); |
1da177e4 LT |
454 | data.ncp_fd = md->ncp_fd; |
455 | data.time_out = md->time_out; | |
456 | data.retry_count = md->retry_count; | |
457 | data.uid = md->uid; | |
458 | data.gid = md->gid; | |
459 | data.file_mode = md->file_mode; | |
460 | data.dir_mode = md->dir_mode; | |
461 | data.info_fd = -1; | |
462 | data.mounted_vol[0] = 0; | |
463 | } | |
464 | break; | |
465 | default: | |
466 | error = -ECHRNG; | |
467 | if (memcmp(raw_data, "vers", 4) == 0) { | |
468 | error = ncp_parse_options(&data, raw_data); | |
469 | } | |
470 | if (error) | |
471 | goto out; | |
472 | break; | |
473 | } | |
474 | error = -EBADF; | |
475 | ncp_filp = fget(data.ncp_fd); | |
476 | if (!ncp_filp) | |
477 | goto out; | |
478 | error = -ENOTSOCK; | |
92e5baef | 479 | sock_inode = ncp_filp->f_path.dentry->d_inode; |
1da177e4 LT |
480 | if (!S_ISSOCK(sock_inode->i_mode)) |
481 | goto out_fput; | |
482 | sock = SOCKET_I(sock_inode); | |
483 | if (!sock) | |
484 | goto out_fput; | |
485 | ||
486 | if (sock->type == SOCK_STREAM) | |
487 | default_bufsize = 0xF000; | |
488 | else | |
489 | default_bufsize = 1024; | |
490 | ||
491 | sb->s_flags |= MS_NODIRATIME; /* probably even noatime */ | |
492 | sb->s_maxbytes = 0xFFFFFFFFU; | |
493 | sb->s_blocksize = 1024; /* Eh... Is this correct? */ | |
494 | sb->s_blocksize_bits = 10; | |
495 | sb->s_magic = NCP_SUPER_MAGIC; | |
496 | sb->s_op = &ncp_sops; | |
497 | ||
498 | server = NCP_SBP(sb); | |
499 | memset(server, 0, sizeof(*server)); | |
500 | ||
501 | server->ncp_filp = ncp_filp; | |
502 | server->ncp_sock = sock; | |
503 | ||
504 | if (data.info_fd != -1) { | |
505 | struct socket *info_sock; | |
506 | ||
507 | error = -EBADF; | |
508 | server->info_filp = fget(data.info_fd); | |
509 | if (!server->info_filp) | |
510 | goto out_fput; | |
511 | error = -ENOTSOCK; | |
92e5baef | 512 | sock_inode = server->info_filp->f_path.dentry->d_inode; |
1da177e4 LT |
513 | if (!S_ISSOCK(sock_inode->i_mode)) |
514 | goto out_fput2; | |
515 | info_sock = SOCKET_I(sock_inode); | |
516 | if (!info_sock) | |
517 | goto out_fput2; | |
518 | error = -EBADFD; | |
519 | if (info_sock->type != SOCK_STREAM) | |
520 | goto out_fput2; | |
521 | server->info_sock = info_sock; | |
522 | } | |
523 | ||
524 | /* server->lock = 0; */ | |
8e3f9045 | 525 | mutex_init(&server->mutex); |
1da177e4 LT |
526 | server->packet = NULL; |
527 | /* server->buffer_size = 0; */ | |
528 | /* server->conn_status = 0; */ | |
529 | /* server->root_dentry = NULL; */ | |
530 | /* server->root_setuped = 0; */ | |
531 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
532 | /* server->sign_wanted = 0; */ | |
533 | /* server->sign_active = 0; */ | |
534 | #endif | |
535 | server->auth.auth_type = NCP_AUTH_NONE; | |
536 | /* server->auth.object_name_len = 0; */ | |
537 | /* server->auth.object_name = NULL; */ | |
538 | /* server->auth.object_type = 0; */ | |
539 | /* server->priv.len = 0; */ | |
540 | /* server->priv.data = NULL; */ | |
541 | ||
542 | server->m = data; | |
543 | /* Althought anything producing this is buggy, it happens | |
544 | now because of PATH_MAX changes.. */ | |
545 | if (server->m.time_out < 1) { | |
546 | server->m.time_out = 10; | |
547 | printk(KERN_INFO "You need to recompile your ncpfs utils..\n"); | |
548 | } | |
549 | server->m.time_out = server->m.time_out * HZ / 100; | |
550 | server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG; | |
551 | server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR; | |
552 | ||
553 | #ifdef CONFIG_NCPFS_NLS | |
554 | /* load the default NLS charsets */ | |
555 | server->nls_vol = load_nls_default(); | |
556 | server->nls_io = load_nls_default(); | |
557 | #endif /* CONFIG_NCPFS_NLS */ | |
558 | ||
559 | server->dentry_ttl = 0; /* no caching */ | |
560 | ||
561 | INIT_LIST_HEAD(&server->tx.requests); | |
8e3f9045 | 562 | mutex_init(&server->rcv.creq_mutex); |
1da177e4 LT |
563 | server->tx.creq = NULL; |
564 | server->rcv.creq = NULL; | |
565 | server->data_ready = sock->sk->sk_data_ready; | |
566 | server->write_space = sock->sk->sk_write_space; | |
567 | server->error_report = sock->sk->sk_error_report; | |
568 | sock->sk->sk_user_data = server; | |
569 | ||
570 | init_timer(&server->timeout_tm); | |
571 | #undef NCP_PACKET_SIZE | |
572 | #define NCP_PACKET_SIZE 131072 | |
573 | error = -ENOMEM; | |
574 | server->packet_size = NCP_PACKET_SIZE; | |
575 | server->packet = vmalloc(NCP_PACKET_SIZE); | |
576 | if (server->packet == NULL) | |
577 | goto out_nls; | |
c5f93cf1 PO |
578 | server->txbuf = vmalloc(NCP_PACKET_SIZE); |
579 | if (server->txbuf == NULL) | |
580 | goto out_packet; | |
581 | server->rxbuf = vmalloc(NCP_PACKET_SIZE); | |
582 | if (server->rxbuf == NULL) | |
583 | goto out_txbuf; | |
1da177e4 LT |
584 | |
585 | sock->sk->sk_data_ready = ncp_tcp_data_ready; | |
586 | sock->sk->sk_error_report = ncp_tcp_error_report; | |
587 | if (sock->type == SOCK_STREAM) { | |
588 | server->rcv.ptr = (unsigned char*)&server->rcv.buf; | |
589 | server->rcv.len = 10; | |
590 | server->rcv.state = 0; | |
c4028958 DH |
591 | INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc); |
592 | INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc); | |
1da177e4 LT |
593 | sock->sk->sk_write_space = ncp_tcp_write_space; |
594 | } else { | |
c4028958 DH |
595 | INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc); |
596 | INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc); | |
1da177e4 LT |
597 | server->timeout_tm.data = (unsigned long)server; |
598 | server->timeout_tm.function = ncpdgram_timeout_call; | |
599 | } | |
600 | ||
601 | ncp_lock_server(server); | |
602 | error = ncp_connect(server); | |
603 | ncp_unlock_server(server); | |
604 | if (error < 0) | |
c5f93cf1 | 605 | goto out_rxbuf; |
1da177e4 LT |
606 | DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb)); |
607 | ||
608 | error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */ | |
609 | #ifdef CONFIG_NCPFS_PACKET_SIGNING | |
610 | if (ncp_negotiate_size_and_options(server, default_bufsize, | |
611 | NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0) | |
612 | { | |
613 | if (options != NCP_DEFAULT_OPTIONS) | |
614 | { | |
615 | if (ncp_negotiate_size_and_options(server, | |
616 | default_bufsize, | |
617 | options & 2, | |
618 | &(server->buffer_size), &options) != 0) | |
619 | ||
620 | { | |
621 | goto out_disconnect; | |
622 | } | |
623 | } | |
624 | if (options & 2) | |
625 | server->sign_wanted = 1; | |
626 | } | |
627 | else | |
628 | #endif /* CONFIG_NCPFS_PACKET_SIGNING */ | |
629 | if (ncp_negotiate_buffersize(server, default_bufsize, | |
630 | &(server->buffer_size)) != 0) | |
631 | goto out_disconnect; | |
632 | DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size); | |
633 | ||
634 | memset(&finfo, 0, sizeof(finfo)); | |
635 | finfo.i.attributes = aDIR; | |
636 | finfo.i.dataStreamSize = 0; /* ignored */ | |
637 | finfo.i.dirEntNum = 0; | |
638 | finfo.i.DosDirNum = 0; | |
639 | #ifdef CONFIG_NCPFS_SMALLDOS | |
640 | finfo.i.NSCreator = NW_NS_DOS; | |
641 | #endif | |
642 | finfo.volume = NCP_NUMBER_OF_VOLUMES; | |
643 | /* set dates of mountpoint to Jan 1, 1986; 00:00 */ | |
644 | finfo.i.creationTime = finfo.i.modifyTime | |
645 | = cpu_to_le16(0x0000); | |
646 | finfo.i.creationDate = finfo.i.modifyDate | |
647 | = finfo.i.lastAccessDate | |
648 | = cpu_to_le16(0x0C21); | |
649 | finfo.i.nameLen = 0; | |
650 | finfo.i.entryName[0] = '\0'; | |
651 | ||
652 | finfo.opened = 0; | |
653 | finfo.ino = 2; /* tradition */ | |
654 | ||
655 | server->name_space[finfo.volume] = NW_NS_DOS; | |
656 | ||
657 | error = -ENOMEM; | |
658 | root_inode = ncp_iget(sb, &finfo); | |
659 | if (!root_inode) | |
660 | goto out_disconnect; | |
661 | DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber); | |
662 | sb->s_root = d_alloc_root(root_inode); | |
663 | if (!sb->s_root) | |
664 | goto out_no_root; | |
665 | sb->s_root->d_op = &ncp_root_dentry_operations; | |
666 | return 0; | |
667 | ||
668 | out_no_root: | |
669 | iput(root_inode); | |
670 | out_disconnect: | |
671 | ncp_lock_server(server); | |
672 | ncp_disconnect(server); | |
673 | ncp_unlock_server(server); | |
c5f93cf1 | 674 | out_rxbuf: |
1da177e4 | 675 | ncp_stop_tasks(server); |
c5f93cf1 PO |
676 | vfree(server->rxbuf); |
677 | out_txbuf: | |
678 | vfree(server->txbuf); | |
679 | out_packet: | |
1da177e4 LT |
680 | vfree(server->packet); |
681 | out_nls: | |
682 | #ifdef CONFIG_NCPFS_NLS | |
683 | unload_nls(server->nls_io); | |
684 | unload_nls(server->nls_vol); | |
685 | #endif | |
686 | out_fput2: | |
687 | if (server->info_filp) | |
688 | fput(server->info_filp); | |
689 | out_fput: | |
690 | /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>: | |
691 | * | |
692 | * The previously used put_filp(ncp_filp); was bogous, since | |
693 | * it doesn't proper unlocking. | |
694 | */ | |
695 | fput(ncp_filp); | |
696 | out: | |
1de24126 | 697 | put_pid(data.wdog_pid); |
1da177e4 LT |
698 | sb->s_fs_info = NULL; |
699 | kfree(server); | |
700 | return error; | |
701 | } | |
702 | ||
703 | static void ncp_put_super(struct super_block *sb) | |
704 | { | |
705 | struct ncp_server *server = NCP_SBP(sb); | |
706 | ||
707 | ncp_lock_server(server); | |
708 | ncp_disconnect(server); | |
709 | ncp_unlock_server(server); | |
710 | ||
711 | ncp_stop_tasks(server); | |
712 | ||
713 | #ifdef CONFIG_NCPFS_NLS | |
714 | /* unload the NLS charsets */ | |
715 | if (server->nls_vol) | |
716 | { | |
717 | unload_nls(server->nls_vol); | |
718 | server->nls_vol = NULL; | |
719 | } | |
720 | if (server->nls_io) | |
721 | { | |
722 | unload_nls(server->nls_io); | |
723 | server->nls_io = NULL; | |
724 | } | |
725 | #endif /* CONFIG_NCPFS_NLS */ | |
726 | ||
727 | if (server->info_filp) | |
728 | fput(server->info_filp); | |
729 | fput(server->ncp_filp); | |
2154227a EB |
730 | kill_pid(server->m.wdog_pid, SIGTERM, 1); |
731 | put_pid(server->m.wdog_pid); | |
1da177e4 | 732 | |
44db77f3 PE |
733 | kfree(server->priv.data); |
734 | kfree(server->auth.object_name); | |
c5f93cf1 PO |
735 | vfree(server->rxbuf); |
736 | vfree(server->txbuf); | |
1da177e4 LT |
737 | vfree(server->packet); |
738 | sb->s_fs_info = NULL; | |
739 | kfree(server); | |
740 | } | |
741 | ||
726c3342 | 742 | static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 LT |
743 | { |
744 | struct dentry* d; | |
745 | struct inode* i; | |
746 | struct ncp_inode_info* ni; | |
747 | struct ncp_server* s; | |
748 | struct ncp_volume_info vi; | |
726c3342 | 749 | struct super_block *sb = dentry->d_sb; |
1da177e4 LT |
750 | int err; |
751 | __u8 dh; | |
752 | ||
753 | d = sb->s_root; | |
754 | if (!d) { | |
755 | goto dflt; | |
756 | } | |
757 | i = d->d_inode; | |
758 | if (!i) { | |
759 | goto dflt; | |
760 | } | |
761 | ni = NCP_FINFO(i); | |
762 | if (!ni) { | |
763 | goto dflt; | |
764 | } | |
765 | s = NCP_SBP(sb); | |
766 | if (!s) { | |
767 | goto dflt; | |
768 | } | |
769 | if (!s->m.mounted_vol[0]) { | |
770 | goto dflt; | |
771 | } | |
772 | ||
773 | err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh); | |
774 | if (err) { | |
775 | goto dflt; | |
776 | } | |
777 | err = ncp_get_directory_info(s, dh, &vi); | |
778 | ncp_dirhandle_free(s, dh); | |
779 | if (err) { | |
780 | goto dflt; | |
781 | } | |
782 | buf->f_type = NCP_SUPER_MAGIC; | |
783 | buf->f_bsize = vi.sectors_per_block * 512; | |
784 | buf->f_blocks = vi.total_blocks; | |
785 | buf->f_bfree = vi.free_blocks; | |
786 | buf->f_bavail = vi.free_blocks; | |
787 | buf->f_files = vi.total_dir_entries; | |
788 | buf->f_ffree = vi.available_dir_entries; | |
789 | buf->f_namelen = 12; | |
790 | return 0; | |
791 | ||
792 | /* We cannot say how much disk space is left on a mounted | |
793 | NetWare Server, because free space is distributed over | |
794 | volumes, and the current user might have disk quotas. So | |
795 | free space is not that simple to determine. Our decision | |
796 | here is to err conservatively. */ | |
797 | ||
798 | dflt:; | |
799 | buf->f_type = NCP_SUPER_MAGIC; | |
800 | buf->f_bsize = NCP_BLOCK_SIZE; | |
801 | buf->f_blocks = 0; | |
802 | buf->f_bfree = 0; | |
803 | buf->f_bavail = 0; | |
804 | buf->f_namelen = 12; | |
805 | return 0; | |
806 | } | |
807 | ||
808 | int ncp_notify_change(struct dentry *dentry, struct iattr *attr) | |
809 | { | |
810 | struct inode *inode = dentry->d_inode; | |
811 | int result = 0; | |
812 | __le32 info_mask; | |
813 | struct nw_modify_dos_info info; | |
814 | struct ncp_server *server; | |
815 | ||
816 | result = -EIO; | |
817 | ||
818 | lock_kernel(); | |
819 | ||
820 | server = NCP_SERVER(inode); | |
821 | if ((!server) || !ncp_conn_valid(server)) | |
822 | goto out; | |
823 | ||
824 | /* ageing the dentry to force validation */ | |
825 | ncp_age_dentry(server, dentry); | |
826 | ||
827 | result = inode_change_ok(inode, attr); | |
828 | if (result < 0) | |
829 | goto out; | |
830 | ||
831 | result = -EPERM; | |
832 | if (((attr->ia_valid & ATTR_UID) && | |
833 | (attr->ia_uid != server->m.uid))) | |
834 | goto out; | |
835 | ||
836 | if (((attr->ia_valid & ATTR_GID) && | |
837 | (attr->ia_gid != server->m.gid))) | |
838 | goto out; | |
839 | ||
840 | if (((attr->ia_valid & ATTR_MODE) && | |
841 | (attr->ia_mode & | |
842 | ~(S_IFREG | S_IFDIR | S_IRWXUGO)))) | |
843 | goto out; | |
844 | ||
845 | info_mask = 0; | |
846 | memset(&info, 0, sizeof(info)); | |
847 | ||
848 | #if 1 | |
849 | if ((attr->ia_valid & ATTR_MODE) != 0) | |
850 | { | |
851 | umode_t newmode = attr->ia_mode; | |
852 | ||
853 | info_mask |= DM_ATTRIBUTES; | |
854 | ||
855 | if (S_ISDIR(inode->i_mode)) { | |
856 | newmode &= server->m.dir_mode; | |
857 | } else { | |
858 | #ifdef CONFIG_NCPFS_EXTRAS | |
859 | if (server->m.flags & NCP_MOUNT_EXTRAS) { | |
860 | /* any non-default execute bit set */ | |
861 | if (newmode & ~server->m.file_mode & S_IXUGO) | |
862 | info.attributes |= aSHARED | aSYSTEM; | |
863 | /* read for group/world and not in default file_mode */ | |
864 | else if (newmode & ~server->m.file_mode & S_IRUGO) | |
865 | info.attributes |= aSHARED; | |
866 | } else | |
867 | #endif | |
868 | newmode &= server->m.file_mode; | |
869 | } | |
870 | if (newmode & S_IWUGO) | |
871 | info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
872 | else | |
873 | info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT); | |
874 | ||
875 | #ifdef CONFIG_NCPFS_NFS_NS | |
876 | if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) { | |
877 | result = ncp_modify_nfs_info(server, | |
878 | NCP_FINFO(inode)->volNumber, | |
879 | NCP_FINFO(inode)->dirEntNum, | |
880 | attr->ia_mode, 0); | |
881 | if (result != 0) | |
882 | goto out; | |
883 | info.attributes &= ~(aSHARED | aSYSTEM); | |
884 | { | |
885 | /* mark partial success */ | |
886 | struct iattr tmpattr; | |
887 | ||
888 | tmpattr.ia_valid = ATTR_MODE; | |
889 | tmpattr.ia_mode = attr->ia_mode; | |
890 | ||
891 | result = inode_setattr(inode, &tmpattr); | |
892 | if (result) | |
893 | goto out; | |
894 | } | |
895 | } | |
896 | #endif | |
897 | } | |
898 | #endif | |
899 | ||
900 | /* Do SIZE before attributes, otherwise mtime together with size does not work... | |
901 | */ | |
902 | if ((attr->ia_valid & ATTR_SIZE) != 0) { | |
903 | int written; | |
904 | ||
905 | DPRINTK("ncpfs: trying to change size to %ld\n", | |
906 | attr->ia_size); | |
907 | ||
908 | if ((result = ncp_make_open(inode, O_WRONLY)) < 0) { | |
909 | result = -EACCES; | |
910 | goto out; | |
911 | } | |
912 | ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle, | |
913 | attr->ia_size, 0, "", &written); | |
914 | ||
915 | /* According to ndir, the changes only take effect after | |
916 | closing the file */ | |
917 | ncp_inode_close(inode); | |
918 | result = ncp_make_closed(inode); | |
919 | if (result) | |
920 | goto out; | |
921 | { | |
922 | struct iattr tmpattr; | |
923 | ||
924 | tmpattr.ia_valid = ATTR_SIZE; | |
925 | tmpattr.ia_size = attr->ia_size; | |
926 | ||
927 | result = inode_setattr(inode, &tmpattr); | |
928 | if (result) | |
929 | goto out; | |
930 | } | |
931 | } | |
932 | if ((attr->ia_valid & ATTR_CTIME) != 0) { | |
933 | info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE); | |
934 | ncp_date_unix2dos(attr->ia_ctime.tv_sec, | |
935 | &info.creationTime, &info.creationDate); | |
936 | } | |
937 | if ((attr->ia_valid & ATTR_MTIME) != 0) { | |
938 | info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); | |
939 | ncp_date_unix2dos(attr->ia_mtime.tv_sec, | |
940 | &info.modifyTime, &info.modifyDate); | |
941 | } | |
942 | if ((attr->ia_valid & ATTR_ATIME) != 0) { | |
943 | __le16 dummy; | |
944 | info_mask |= (DM_LAST_ACCESS_DATE); | |
945 | ncp_date_unix2dos(attr->ia_atime.tv_sec, | |
946 | &dummy, &info.lastAccessDate); | |
947 | } | |
948 | if (info_mask != 0) { | |
949 | result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode), | |
950 | inode, info_mask, &info); | |
951 | if (result != 0) { | |
952 | result = -EACCES; | |
953 | ||
954 | if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) { | |
955 | /* NetWare seems not to allow this. I | |
956 | do not know why. So, just tell the | |
957 | user everything went fine. This is | |
958 | a terrible hack, but I do not know | |
959 | how to do this correctly. */ | |
960 | result = 0; | |
961 | } else | |
962 | goto out; | |
963 | } | |
964 | #ifdef CONFIG_NCPFS_STRONG | |
965 | if ((!result) && (info_mask & DM_ATTRIBUTES)) | |
966 | NCP_FINFO(inode)->nwattr = info.attributes; | |
967 | #endif | |
968 | } | |
969 | if (!result) | |
970 | result = inode_setattr(inode, attr); | |
971 | out: | |
972 | unlock_kernel(); | |
973 | return result; | |
974 | } | |
975 | ||
454e2398 DH |
976 | static int ncp_get_sb(struct file_system_type *fs_type, |
977 | int flags, const char *dev_name, void *data, struct vfsmount *mnt) | |
1da177e4 | 978 | { |
454e2398 | 979 | return get_sb_nodev(fs_type, flags, data, ncp_fill_super, mnt); |
1da177e4 LT |
980 | } |
981 | ||
982 | static struct file_system_type ncp_fs_type = { | |
983 | .owner = THIS_MODULE, | |
984 | .name = "ncpfs", | |
985 | .get_sb = ncp_get_sb, | |
986 | .kill_sb = kill_anon_super, | |
987 | }; | |
988 | ||
989 | static int __init init_ncp_fs(void) | |
990 | { | |
991 | int err; | |
992 | DPRINTK("ncpfs: init_module called\n"); | |
993 | ||
1da177e4 LT |
994 | err = init_inodecache(); |
995 | if (err) | |
996 | goto out1; | |
997 | err = register_filesystem(&ncp_fs_type); | |
998 | if (err) | |
999 | goto out; | |
1000 | return 0; | |
1001 | out: | |
1002 | destroy_inodecache(); | |
1003 | out1: | |
1004 | return err; | |
1005 | } | |
1006 | ||
1007 | static void __exit exit_ncp_fs(void) | |
1008 | { | |
1009 | DPRINTK("ncpfs: cleanup_module called\n"); | |
1010 | unregister_filesystem(&ncp_fs_type); | |
1011 | destroy_inodecache(); | |
1da177e4 LT |
1012 | } |
1013 | ||
1014 | module_init(init_ncp_fs) | |
1015 | module_exit(exit_ncp_fs) | |
1016 | MODULE_LICENSE("GPL"); |