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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/vfs.h>
30#include <linux/mount.h>
31#include <linux/seq_file.h>
32#include <linux/namei.h>
33
34#include <net/sock.h>
35
36#include "ncp_fs.h"
37#include "getopt.h"
38
39#define NCP_DEFAULT_FILE_MODE 0600
40#define NCP_DEFAULT_DIR_MODE 0700
41#define NCP_DEFAULT_TIME_OUT 10
42#define NCP_DEFAULT_RETRY_COUNT 20
43
44static void ncp_evict_inode(struct inode *);
45static void ncp_put_super(struct super_block *);
46static int ncp_statfs(struct dentry *, struct kstatfs *);
47static int ncp_show_options(struct seq_file *, struct vfsmount *);
48
49static struct kmem_cache * ncp_inode_cachep;
50
51static struct inode *ncp_alloc_inode(struct super_block *sb)
52{
53 struct ncp_inode_info *ei;
54 ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL);
55 if (!ei)
56 return NULL;
57 return &ei->vfs_inode;
58}
59
60static void ncp_i_callback(struct rcu_head *head)
61{
62 struct inode *inode = container_of(head, struct inode, i_rcu);
63 INIT_LIST_HEAD(&inode->i_dentry);
64 kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
65}
66
67static void ncp_destroy_inode(struct inode *inode)
68{
69 call_rcu(&inode->i_rcu, ncp_i_callback);
70}
71
72static void init_once(void *foo)
73{
74 struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
75
76 mutex_init(&ei->open_mutex);
77 inode_init_once(&ei->vfs_inode);
78}
79
80static int init_inodecache(void)
81{
82 ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
83 sizeof(struct ncp_inode_info),
84 0, (SLAB_RECLAIM_ACCOUNT|
85 SLAB_MEM_SPREAD),
86 init_once);
87 if (ncp_inode_cachep == NULL)
88 return -ENOMEM;
89 return 0;
90}
91
92static void destroy_inodecache(void)
93{
94 kmem_cache_destroy(ncp_inode_cachep);
95}
96
97static int ncp_remount(struct super_block *sb, int *flags, char* data)
98{
99 *flags |= MS_NODIRATIME;
100 return 0;
101}
102
103static const struct super_operations ncp_sops =
104{
105 .alloc_inode = ncp_alloc_inode,
106 .destroy_inode = ncp_destroy_inode,
107 .drop_inode = generic_delete_inode,
108 .evict_inode = ncp_evict_inode,
109 .put_super = ncp_put_super,
110 .statfs = ncp_statfs,
111 .remount_fs = ncp_remount,
112 .show_options = ncp_show_options,
113};
114
115
116
117
118static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
119{
120 NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
121 NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
122 NCP_FINFO(inode)->volNumber = nwinfo->volume;
123}
124
125void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
126{
127 ncp_update_dirent(inode, nwinfo);
128 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
129 NCP_FINFO(inode)->access = nwinfo->access;
130 memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
131 sizeof(nwinfo->file_handle));
132 DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n",
133 nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
134 NCP_FINFO(inode)->dirEntNum);
135}
136
137static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
138{
139
140 DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n",
141 nwi->entryName, nwi->nfs.mode);
142 if (nwi->nfs.mode) {
143
144 inode->i_mode = nwi->nfs.mode;
145 }
146
147 inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
148
149 inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
150 inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
151 inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
152 inode->i_atime.tv_nsec = 0;
153 inode->i_mtime.tv_nsec = 0;
154 inode->i_ctime.tv_nsec = 0;
155}
156
157static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
158{
159 struct nw_info_struct *nwi = &nwinfo->i;
160 struct ncp_server *server = NCP_SERVER(inode);
161
162 if (nwi->attributes & aDIR) {
163 inode->i_mode = server->m.dir_mode;
164
165
166 i_size_write(inode, NCP_BLOCK_SIZE);
167 } else {
168 u32 size;
169
170 inode->i_mode = server->m.file_mode;
171 size = le32_to_cpu(nwi->dataStreamSize);
172 i_size_write(inode, size);
173#ifdef CONFIG_NCPFS_EXTRAS
174 if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS))
175 && (nwi->attributes & aSHARED)) {
176 switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
177 case aHIDDEN:
178 if (server->m.flags & NCP_MOUNT_SYMLINKS) {
179 if (
180 (size <= NCP_MAX_SYMLINK_SIZE)) {
181 inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
182 NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
183 break;
184 }
185 }
186
187 case 0:
188 if (server->m.flags & NCP_MOUNT_EXTRAS)
189 inode->i_mode |= S_IRUGO;
190 break;
191 case aSYSTEM:
192 if (server->m.flags & NCP_MOUNT_EXTRAS)
193 inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
194 break;
195
196 default:
197
198 break;
199 }
200 }
201#endif
202 }
203 if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
204}
205
206void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
207{
208 NCP_FINFO(inode)->flags = 0;
209 if (!atomic_read(&NCP_FINFO(inode)->opened)) {
210 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
211 ncp_update_attrs(inode, nwinfo);
212 }
213
214 ncp_update_dates(inode, &nwinfo->i);
215 ncp_update_dirent(inode, nwinfo);
216}
217
218
219
220
221static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
222{
223 struct ncp_server *server = NCP_SERVER(inode);
224
225 NCP_FINFO(inode)->flags = 0;
226
227 ncp_update_attrs(inode, nwinfo);
228
229 DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
230
231 inode->i_nlink = 1;
232 inode->i_uid = server->m.uid;
233 inode->i_gid = server->m.gid;
234
235 ncp_update_dates(inode, &nwinfo->i);
236 ncp_update_inode(inode, nwinfo);
237}
238
239#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
240static const struct inode_operations ncp_symlink_inode_operations = {
241 .readlink = generic_readlink,
242 .follow_link = page_follow_link_light,
243 .put_link = page_put_link,
244 .setattr = ncp_notify_change,
245};
246#endif
247
248
249
250
251struct inode *
252ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
253{
254 struct inode *inode;
255
256 if (info == NULL) {
257 printk(KERN_ERR "ncp_iget: info is NULL\n");
258 return NULL;
259 }
260
261 inode = new_inode(sb);
262 if (inode) {
263 atomic_set(&NCP_FINFO(inode)->opened, info->opened);
264
265 inode->i_mapping->backing_dev_info = sb->s_bdi;
266 inode->i_ino = info->ino;
267 ncp_set_attr(inode, info);
268 if (S_ISREG(inode->i_mode)) {
269 inode->i_op = &ncp_file_inode_operations;
270 inode->i_fop = &ncp_file_operations;
271 } else if (S_ISDIR(inode->i_mode)) {
272 inode->i_op = &ncp_dir_inode_operations;
273 inode->i_fop = &ncp_dir_operations;
274#ifdef CONFIG_NCPFS_NFS_NS
275 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
276 init_special_inode(inode, inode->i_mode,
277 new_decode_dev(info->i.nfs.rdev));
278#endif
279#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
280 } else if (S_ISLNK(inode->i_mode)) {
281 inode->i_op = &ncp_symlink_inode_operations;
282 inode->i_data.a_ops = &ncp_symlink_aops;
283#endif
284 } else {
285 make_bad_inode(inode);
286 }
287 insert_inode_hash(inode);
288 } else
289 printk(KERN_ERR "ncp_iget: iget failed!\n");
290 return inode;
291}
292
293static void
294ncp_evict_inode(struct inode *inode)
295{
296 truncate_inode_pages(&inode->i_data, 0);
297 end_writeback(inode);
298
299 if (S_ISDIR(inode->i_mode)) {
300 DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino);
301 }
302
303 if (ncp_make_closed(inode) != 0) {
304
305 printk(KERN_ERR "ncp_evict_inode: could not close\n");
306 }
307}
308
309static void ncp_stop_tasks(struct ncp_server *server) {
310 struct sock* sk = server->ncp_sock->sk;
311
312 lock_sock(sk);
313 sk->sk_error_report = server->error_report;
314 sk->sk_data_ready = server->data_ready;
315 sk->sk_write_space = server->write_space;
316 release_sock(sk);
317 del_timer_sync(&server->timeout_tm);
318
319 flush_work_sync(&server->rcv.tq);
320 if (sk->sk_socket->type == SOCK_STREAM)
321 flush_work_sync(&server->tx.tq);
322 else
323 flush_work_sync(&server->timeout_tq);
324}
325
326static int ncp_show_options(struct seq_file *seq, struct vfsmount *mnt)
327{
328 struct ncp_server *server = NCP_SBP(mnt->mnt_sb);
329 unsigned int tmp;
330
331 if (server->m.uid != 0)
332 seq_printf(seq, ",uid=%u", server->m.uid);
333 if (server->m.gid != 0)
334 seq_printf(seq, ",gid=%u", server->m.gid);
335 if (server->m.mounted_uid != 0)
336 seq_printf(seq, ",owner=%u", server->m.mounted_uid);
337 tmp = server->m.file_mode & S_IALLUGO;
338 if (tmp != NCP_DEFAULT_FILE_MODE)
339 seq_printf(seq, ",mode=0%o", tmp);
340 tmp = server->m.dir_mode & S_IALLUGO;
341 if (tmp != NCP_DEFAULT_DIR_MODE)
342 seq_printf(seq, ",dirmode=0%o", tmp);
343 if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
344 tmp = server->m.time_out * 100 / HZ;
345 seq_printf(seq, ",timeout=%u", tmp);
346 }
347 if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
348 seq_printf(seq, ",retry=%u", server->m.retry_count);
349 if (server->m.flags != 0)
350 seq_printf(seq, ",flags=%lu", server->m.flags);
351 if (server->m.wdog_pid != NULL)
352 seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));
353
354 return 0;
355}
356
357static const struct ncp_option ncp_opts[] = {
358 { "uid", OPT_INT, 'u' },
359 { "gid", OPT_INT, 'g' },
360 { "owner", OPT_INT, 'o' },
361 { "mode", OPT_INT, 'm' },
362 { "dirmode", OPT_INT, 'd' },
363 { "timeout", OPT_INT, 't' },
364 { "retry", OPT_INT, 'r' },
365 { "flags", OPT_INT, 'f' },
366 { "wdogpid", OPT_INT, 'w' },
367 { "ncpfd", OPT_INT, 'n' },
368 { "infofd", OPT_INT, 'i' },
369 { "version", OPT_INT, 'v' },
370 { NULL, 0, 0 } };
371
372static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
373 int optval;
374 char *optarg;
375 unsigned long optint;
376 int version = 0;
377 int ret;
378
379 data->flags = 0;
380 data->int_flags = 0;
381 data->mounted_uid = 0;
382 data->wdog_pid = NULL;
383 data->ncp_fd = ~0;
384 data->time_out = NCP_DEFAULT_TIME_OUT;
385 data->retry_count = NCP_DEFAULT_RETRY_COUNT;
386 data->uid = 0;
387 data->gid = 0;
388 data->file_mode = NCP_DEFAULT_FILE_MODE;
389 data->dir_mode = NCP_DEFAULT_DIR_MODE;
390 data->info_fd = -1;
391 data->mounted_vol[0] = 0;
392
393 while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
394 ret = optval;
395 if (ret < 0)
396 goto err;
397 switch (optval) {
398 case 'u':
399 data->uid = optint;
400 break;
401 case 'g':
402 data->gid = optint;
403 break;
404 case 'o':
405 data->mounted_uid = optint;
406 break;
407 case 'm':
408 data->file_mode = optint;
409 break;
410 case 'd':
411 data->dir_mode = optint;
412 break;
413 case 't':
414 data->time_out = optint;
415 break;
416 case 'r':
417 data->retry_count = optint;
418 break;
419 case 'f':
420 data->flags = optint;
421 break;
422 case 'w':
423 data->wdog_pid = find_get_pid(optint);
424 break;
425 case 'n':
426 data->ncp_fd = optint;
427 break;
428 case 'i':
429 data->info_fd = optint;
430 break;
431 case 'v':
432 ret = -ECHRNG;
433 if (optint < NCP_MOUNT_VERSION_V4)
434 goto err;
435 if (optint > NCP_MOUNT_VERSION_V5)
436 goto err;
437 version = optint;
438 break;
439
440 }
441 }
442 return 0;
443err:
444 put_pid(data->wdog_pid);
445 data->wdog_pid = NULL;
446 return ret;
447}
448
449static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
450{
451 struct ncp_mount_data_kernel data;
452 struct ncp_server *server;
453 struct file *ncp_filp;
454 struct inode *root_inode;
455 struct inode *sock_inode;
456 struct socket *sock;
457 int error;
458 int default_bufsize;
459#ifdef CONFIG_NCPFS_PACKET_SIGNING
460 int options;
461#endif
462 struct ncp_entry_info finfo;
463
464 data.wdog_pid = NULL;
465 server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
466 if (!server)
467 return -ENOMEM;
468 sb->s_fs_info = server;
469
470 error = -EFAULT;
471 if (raw_data == NULL)
472 goto out;
473 switch (*(int*)raw_data) {
474 case NCP_MOUNT_VERSION:
475 {
476 struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
477
478 data.flags = md->flags;
479 data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
480 data.mounted_uid = md->mounted_uid;
481 data.wdog_pid = find_get_pid(md->wdog_pid);
482 data.ncp_fd = md->ncp_fd;
483 data.time_out = md->time_out;
484 data.retry_count = md->retry_count;
485 data.uid = md->uid;
486 data.gid = md->gid;
487 data.file_mode = md->file_mode;
488 data.dir_mode = md->dir_mode;
489 data.info_fd = -1;
490 memcpy(data.mounted_vol, md->mounted_vol,
491 NCP_VOLNAME_LEN+1);
492 }
493 break;
494 case NCP_MOUNT_VERSION_V4:
495 {
496 struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
497
498 data.flags = md->flags;
499 data.int_flags = 0;
500 data.mounted_uid = md->mounted_uid;
501 data.wdog_pid = find_get_pid(md->wdog_pid);
502 data.ncp_fd = md->ncp_fd;
503 data.time_out = md->time_out;
504 data.retry_count = md->retry_count;
505 data.uid = md->uid;
506 data.gid = md->gid;
507 data.file_mode = md->file_mode;
508 data.dir_mode = md->dir_mode;
509 data.info_fd = -1;
510 data.mounted_vol[0] = 0;
511 }
512 break;
513 default:
514 error = -ECHRNG;
515 if (memcmp(raw_data, "vers", 4) == 0) {
516 error = ncp_parse_options(&data, raw_data);
517 }
518 if (error)
519 goto out;
520 break;
521 }
522 error = -EBADF;
523 ncp_filp = fget(data.ncp_fd);
524 if (!ncp_filp)
525 goto out;
526 error = -ENOTSOCK;
527 sock_inode = ncp_filp->f_path.dentry->d_inode;
528 if (!S_ISSOCK(sock_inode->i_mode))
529 goto out_fput;
530 sock = SOCKET_I(sock_inode);
531 if (!sock)
532 goto out_fput;
533
534 if (sock->type == SOCK_STREAM)
535 default_bufsize = 0xF000;
536 else
537 default_bufsize = 1024;
538
539 sb->s_flags |= MS_NODIRATIME;
540 sb->s_maxbytes = 0xFFFFFFFFU;
541 sb->s_blocksize = 1024;
542 sb->s_blocksize_bits = 10;
543 sb->s_magic = NCP_SUPER_MAGIC;
544 sb->s_op = &ncp_sops;
545 sb->s_d_op = &ncp_dentry_operations;
546 sb->s_bdi = &server->bdi;
547
548 server = NCP_SBP(sb);
549 memset(server, 0, sizeof(*server));
550
551 error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
552 if (error)
553 goto out_bdi;
554
555 server->ncp_filp = ncp_filp;
556 server->ncp_sock = sock;
557
558 if (data.info_fd != -1) {
559 struct socket *info_sock;
560
561 error = -EBADF;
562 server->info_filp = fget(data.info_fd);
563 if (!server->info_filp)
564 goto out_fput;
565 error = -ENOTSOCK;
566 sock_inode = server->info_filp->f_path.dentry->d_inode;
567 if (!S_ISSOCK(sock_inode->i_mode))
568 goto out_fput2;
569 info_sock = SOCKET_I(sock_inode);
570 if (!info_sock)
571 goto out_fput2;
572 error = -EBADFD;
573 if (info_sock->type != SOCK_STREAM)
574 goto out_fput2;
575 server->info_sock = info_sock;
576 }
577
578
579 mutex_init(&server->mutex);
580 server->packet = NULL;
581
582
583
584
585 mutex_init(&server->root_setup_lock);
586#ifdef CONFIG_NCPFS_PACKET_SIGNING
587
588
589#endif
590 init_rwsem(&server->auth_rwsem);
591 server->auth.auth_type = NCP_AUTH_NONE;
592
593
594
595
596
597
598 server->m = data;
599
600
601 if (server->m.time_out < 1) {
602 server->m.time_out = 10;
603 printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
604 }
605 server->m.time_out = server->m.time_out * HZ / 100;
606 server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
607 server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;
608
609#ifdef CONFIG_NCPFS_NLS
610
611 server->nls_vol = load_nls_default();
612 server->nls_io = load_nls_default();
613#endif
614
615 atomic_set(&server->dentry_ttl, 0);
616
617 INIT_LIST_HEAD(&server->tx.requests);
618 mutex_init(&server->rcv.creq_mutex);
619 server->tx.creq = NULL;
620 server->rcv.creq = NULL;
621
622 init_timer(&server->timeout_tm);
623#undef NCP_PACKET_SIZE
624#define NCP_PACKET_SIZE 131072
625 error = -ENOMEM;
626 server->packet_size = NCP_PACKET_SIZE;
627 server->packet = vmalloc(NCP_PACKET_SIZE);
628 if (server->packet == NULL)
629 goto out_nls;
630 server->txbuf = vmalloc(NCP_PACKET_SIZE);
631 if (server->txbuf == NULL)
632 goto out_packet;
633 server->rxbuf = vmalloc(NCP_PACKET_SIZE);
634 if (server->rxbuf == NULL)
635 goto out_txbuf;
636
637 lock_sock(sock->sk);
638 server->data_ready = sock->sk->sk_data_ready;
639 server->write_space = sock->sk->sk_write_space;
640 server->error_report = sock->sk->sk_error_report;
641 sock->sk->sk_user_data = server;
642 sock->sk->sk_data_ready = ncp_tcp_data_ready;
643 sock->sk->sk_error_report = ncp_tcp_error_report;
644 if (sock->type == SOCK_STREAM) {
645 server->rcv.ptr = (unsigned char*)&server->rcv.buf;
646 server->rcv.len = 10;
647 server->rcv.state = 0;
648 INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
649 INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
650 sock->sk->sk_write_space = ncp_tcp_write_space;
651 } else {
652 INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
653 INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
654 server->timeout_tm.data = (unsigned long)server;
655 server->timeout_tm.function = ncpdgram_timeout_call;
656 }
657 release_sock(sock->sk);
658
659 ncp_lock_server(server);
660 error = ncp_connect(server);
661 ncp_unlock_server(server);
662 if (error < 0)
663 goto out_rxbuf;
664 DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
665
666 error = -EMSGSIZE;
667#ifdef CONFIG_NCPFS_PACKET_SIGNING
668 if (ncp_negotiate_size_and_options(server, default_bufsize,
669 NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
670 {
671 if (options != NCP_DEFAULT_OPTIONS)
672 {
673 if (ncp_negotiate_size_and_options(server,
674 default_bufsize,
675 options & 2,
676 &(server->buffer_size), &options) != 0)
677
678 {
679 goto out_disconnect;
680 }
681 }
682 ncp_lock_server(server);
683 if (options & 2)
684 server->sign_wanted = 1;
685 ncp_unlock_server(server);
686 }
687 else
688#endif
689 if (ncp_negotiate_buffersize(server, default_bufsize,
690 &(server->buffer_size)) != 0)
691 goto out_disconnect;
692 DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
693
694 memset(&finfo, 0, sizeof(finfo));
695 finfo.i.attributes = aDIR;
696 finfo.i.dataStreamSize = 0;
697 finfo.i.dirEntNum = 0;
698 finfo.i.DosDirNum = 0;
699#ifdef CONFIG_NCPFS_SMALLDOS
700 finfo.i.NSCreator = NW_NS_DOS;
701#endif
702 finfo.volume = NCP_NUMBER_OF_VOLUMES;
703
704 finfo.i.creationTime = finfo.i.modifyTime
705 = cpu_to_le16(0x0000);
706 finfo.i.creationDate = finfo.i.modifyDate
707 = finfo.i.lastAccessDate
708 = cpu_to_le16(0x0C21);
709 finfo.i.nameLen = 0;
710 finfo.i.entryName[0] = '\0';
711
712 finfo.opened = 0;
713 finfo.ino = 2;
714
715 server->name_space[finfo.volume] = NW_NS_DOS;
716
717 error = -ENOMEM;
718 root_inode = ncp_iget(sb, &finfo);
719 if (!root_inode)
720 goto out_disconnect;
721 DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
722 sb->s_root = d_alloc_root(root_inode);
723 if (!sb->s_root)
724 goto out_no_root;
725 return 0;
726
727out_no_root:
728 iput(root_inode);
729out_disconnect:
730 ncp_lock_server(server);
731 ncp_disconnect(server);
732 ncp_unlock_server(server);
733out_rxbuf:
734 ncp_stop_tasks(server);
735 vfree(server->rxbuf);
736out_txbuf:
737 vfree(server->txbuf);
738out_packet:
739 vfree(server->packet);
740out_nls:
741#ifdef CONFIG_NCPFS_NLS
742 unload_nls(server->nls_io);
743 unload_nls(server->nls_vol);
744#endif
745 mutex_destroy(&server->rcv.creq_mutex);
746 mutex_destroy(&server->root_setup_lock);
747 mutex_destroy(&server->mutex);
748out_fput2:
749 if (server->info_filp)
750 fput(server->info_filp);
751out_fput:
752 bdi_destroy(&server->bdi);
753out_bdi:
754
755
756
757
758
759 fput(ncp_filp);
760out:
761 put_pid(data.wdog_pid);
762 sb->s_fs_info = NULL;
763 kfree(server);
764 return error;
765}
766
767static void ncp_put_super(struct super_block *sb)
768{
769 struct ncp_server *server = NCP_SBP(sb);
770
771 ncp_lock_server(server);
772 ncp_disconnect(server);
773 ncp_unlock_server(server);
774
775 ncp_stop_tasks(server);
776
777#ifdef CONFIG_NCPFS_NLS
778
779 unload_nls(server->nls_vol);
780 unload_nls(server->nls_io);
781#endif
782 mutex_destroy(&server->rcv.creq_mutex);
783 mutex_destroy(&server->root_setup_lock);
784 mutex_destroy(&server->mutex);
785
786 if (server->info_filp)
787 fput(server->info_filp);
788 fput(server->ncp_filp);
789 kill_pid(server->m.wdog_pid, SIGTERM, 1);
790 put_pid(server->m.wdog_pid);
791
792 bdi_destroy(&server->bdi);
793 kfree(server->priv.data);
794 kfree(server->auth.object_name);
795 vfree(server->rxbuf);
796 vfree(server->txbuf);
797 vfree(server->packet);
798 sb->s_fs_info = NULL;
799 kfree(server);
800}
801
802static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
803{
804 struct dentry* d;
805 struct inode* i;
806 struct ncp_inode_info* ni;
807 struct ncp_server* s;
808 struct ncp_volume_info vi;
809 struct super_block *sb = dentry->d_sb;
810 int err;
811 __u8 dh;
812
813 d = sb->s_root;
814 if (!d) {
815 goto dflt;
816 }
817 i = d->d_inode;
818 if (!i) {
819 goto dflt;
820 }
821 ni = NCP_FINFO(i);
822 if (!ni) {
823 goto dflt;
824 }
825 s = NCP_SBP(sb);
826 if (!s) {
827 goto dflt;
828 }
829 if (!s->m.mounted_vol[0]) {
830 goto dflt;
831 }
832
833 err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
834 if (err) {
835 goto dflt;
836 }
837 err = ncp_get_directory_info(s, dh, &vi);
838 ncp_dirhandle_free(s, dh);
839 if (err) {
840 goto dflt;
841 }
842 buf->f_type = NCP_SUPER_MAGIC;
843 buf->f_bsize = vi.sectors_per_block * 512;
844 buf->f_blocks = vi.total_blocks;
845 buf->f_bfree = vi.free_blocks;
846 buf->f_bavail = vi.free_blocks;
847 buf->f_files = vi.total_dir_entries;
848 buf->f_ffree = vi.available_dir_entries;
849 buf->f_namelen = 12;
850 return 0;
851
852
853
854
855
856
857
858dflt:;
859 buf->f_type = NCP_SUPER_MAGIC;
860 buf->f_bsize = NCP_BLOCK_SIZE;
861 buf->f_blocks = 0;
862 buf->f_bfree = 0;
863 buf->f_bavail = 0;
864 buf->f_namelen = 12;
865 return 0;
866}
867
868int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
869{
870 struct inode *inode = dentry->d_inode;
871 int result = 0;
872 __le32 info_mask;
873 struct nw_modify_dos_info info;
874 struct ncp_server *server;
875
876 result = -EIO;
877
878 server = NCP_SERVER(inode);
879 if (!server)
880 goto out;
881
882
883 ncp_age_dentry(server, dentry);
884
885 result = inode_change_ok(inode, attr);
886 if (result < 0)
887 goto out;
888
889 result = -EPERM;
890 if (((attr->ia_valid & ATTR_UID) &&
891 (attr->ia_uid != server->m.uid)))
892 goto out;
893
894 if (((attr->ia_valid & ATTR_GID) &&
895 (attr->ia_gid != server->m.gid)))
896 goto out;
897
898 if (((attr->ia_valid & ATTR_MODE) &&
899 (attr->ia_mode &
900 ~(S_IFREG | S_IFDIR | S_IRWXUGO))))
901 goto out;
902
903 info_mask = 0;
904 memset(&info, 0, sizeof(info));
905
906#if 1
907 if ((attr->ia_valid & ATTR_MODE) != 0)
908 {
909 umode_t newmode = attr->ia_mode;
910
911 info_mask |= DM_ATTRIBUTES;
912
913 if (S_ISDIR(inode->i_mode)) {
914 newmode &= server->m.dir_mode;
915 } else {
916#ifdef CONFIG_NCPFS_EXTRAS
917 if (server->m.flags & NCP_MOUNT_EXTRAS) {
918
919 if (newmode & ~server->m.file_mode & S_IXUGO)
920 info.attributes |= aSHARED | aSYSTEM;
921
922 else if (newmode & ~server->m.file_mode & S_IRUGO)
923 info.attributes |= aSHARED;
924 } else
925#endif
926 newmode &= server->m.file_mode;
927 }
928 if (newmode & S_IWUGO)
929 info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
930 else
931 info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
932
933#ifdef CONFIG_NCPFS_NFS_NS
934 if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
935 result = ncp_modify_nfs_info(server,
936 NCP_FINFO(inode)->volNumber,
937 NCP_FINFO(inode)->dirEntNum,
938 attr->ia_mode, 0);
939 if (result != 0)
940 goto out;
941 info.attributes &= ~(aSHARED | aSYSTEM);
942 {
943
944 struct iattr tmpattr;
945
946 tmpattr.ia_valid = ATTR_MODE;
947 tmpattr.ia_mode = attr->ia_mode;
948
949 setattr_copy(inode, &tmpattr);
950 mark_inode_dirty(inode);
951 }
952 }
953#endif
954 }
955#endif
956
957
958
959 if ((attr->ia_valid & ATTR_SIZE) != 0) {
960 int written;
961
962 DPRINTK("ncpfs: trying to change size to %ld\n",
963 attr->ia_size);
964
965 if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
966 result = -EACCES;
967 goto out;
968 }
969 ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
970 attr->ia_size, 0, "", &written);
971
972
973
974 ncp_inode_close(inode);
975 result = ncp_make_closed(inode);
976 if (result)
977 goto out;
978
979 if (attr->ia_size != i_size_read(inode)) {
980 result = vmtruncate(inode, attr->ia_size);
981 if (result)
982 goto out;
983 mark_inode_dirty(inode);
984 }
985 }
986 if ((attr->ia_valid & ATTR_CTIME) != 0) {
987 info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
988 ncp_date_unix2dos(attr->ia_ctime.tv_sec,
989 &info.creationTime, &info.creationDate);
990 }
991 if ((attr->ia_valid & ATTR_MTIME) != 0) {
992 info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
993 ncp_date_unix2dos(attr->ia_mtime.tv_sec,
994 &info.modifyTime, &info.modifyDate);
995 }
996 if ((attr->ia_valid & ATTR_ATIME) != 0) {
997 __le16 dummy;
998 info_mask |= (DM_LAST_ACCESS_DATE);
999 ncp_date_unix2dos(attr->ia_atime.tv_sec,
1000 &dummy, &info.lastAccessDate);
1001 }
1002 if (info_mask != 0) {
1003 result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
1004 inode, info_mask, &info);
1005 if (result != 0) {
1006 if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
1007
1008
1009
1010
1011
1012 result = 0;
1013 } else
1014 goto out;
1015 }
1016#ifdef CONFIG_NCPFS_STRONG
1017 if ((!result) && (info_mask & DM_ATTRIBUTES))
1018 NCP_FINFO(inode)->nwattr = info.attributes;
1019#endif
1020 }
1021 if (result)
1022 goto out;
1023
1024 setattr_copy(inode, attr);
1025 mark_inode_dirty(inode);
1026
1027out:
1028 if (result > 0)
1029 result = -EACCES;
1030 return result;
1031}
1032
1033static struct dentry *ncp_mount(struct file_system_type *fs_type,
1034 int flags, const char *dev_name, void *data)
1035{
1036 return mount_nodev(fs_type, flags, data, ncp_fill_super);
1037}
1038
1039static struct file_system_type ncp_fs_type = {
1040 .owner = THIS_MODULE,
1041 .name = "ncpfs",
1042 .mount = ncp_mount,
1043 .kill_sb = kill_anon_super,
1044 .fs_flags = FS_BINARY_MOUNTDATA,
1045};
1046
1047static int __init init_ncp_fs(void)
1048{
1049 int err;
1050 DPRINTK("ncpfs: init_ncp_fs called\n");
1051
1052 err = init_inodecache();
1053 if (err)
1054 goto out1;
1055 err = register_filesystem(&ncp_fs_type);
1056 if (err)
1057 goto out;
1058 return 0;
1059out:
1060 destroy_inodecache();
1061out1:
1062 return err;
1063}
1064
1065static void __exit exit_ncp_fs(void)
1066{
1067 DPRINTK("ncpfs: exit_ncp_fs called\n");
1068 unregister_filesystem(&ncp_fs_type);
1069 destroy_inodecache();
1070}
1071
1072module_init(init_ncp_fs)
1073module_exit(exit_ncp_fs)
1074MODULE_LICENSE("GPL");
1075
