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12#include <linux/module.h>
13
14#include <asm/uaccess.h>
15#include <asm/byteorder.h>
16
17#include <linux/time.h>
18#include <linux/kernel.h>
19#include <linux/mm.h>
20#include <linux/string.h>
21#include <linux/stat.h>
22#include <linux/errno.h>
23#include <linux/file.h>
24#include <linux/fcntl.h>
25#include <linux/slab.h>
26#include <linux/vmalloc.h>
27#include <linux/init.h>
28#include <linux/vfs.h>
29#include <linux/mount.h>
30#include <linux/seq_file.h>
31#include <linux/namei.h>
32
33#include <net/sock.h>
34
35#include "ncp_fs.h"
36#include "getopt.h"
37
38#define NCP_DEFAULT_FILE_MODE 0600
39#define NCP_DEFAULT_DIR_MODE 0700
40#define NCP_DEFAULT_TIME_OUT 10
41#define NCP_DEFAULT_RETRY_COUNT 20
42
43static void ncp_evict_inode(struct inode *);
44static void ncp_put_super(struct super_block *);
45static int ncp_statfs(struct dentry *, struct kstatfs *);
46static int ncp_show_options(struct seq_file *, struct dentry *);
47
48static struct kmem_cache * ncp_inode_cachep;
49
50static struct inode *ncp_alloc_inode(struct super_block *sb)
51{
52 struct ncp_inode_info *ei;
53 ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL);
54 if (!ei)
55 return NULL;
56 return &ei->vfs_inode;
57}
58
59static void ncp_i_callback(struct rcu_head *head)
60{
61 struct inode *inode = container_of(head, struct inode, i_rcu);
62 kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
63}
64
65static void ncp_destroy_inode(struct inode *inode)
66{
67 call_rcu(&inode->i_rcu, ncp_i_callback);
68}
69
70static void init_once(void *foo)
71{
72 struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
73
74 mutex_init(&ei->open_mutex);
75 inode_init_once(&ei->vfs_inode);
76}
77
78static int init_inodecache(void)
79{
80 ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
81 sizeof(struct ncp_inode_info),
82 0, (SLAB_RECLAIM_ACCOUNT|
83 SLAB_MEM_SPREAD),
84 init_once);
85 if (ncp_inode_cachep == NULL)
86 return -ENOMEM;
87 return 0;
88}
89
90static void destroy_inodecache(void)
91{
92
93
94
95
96 rcu_barrier();
97 kmem_cache_destroy(ncp_inode_cachep);
98}
99
100static int ncp_remount(struct super_block *sb, int *flags, char* data)
101{
102 *flags |= MS_NODIRATIME;
103 return 0;
104}
105
106static const struct super_operations ncp_sops =
107{
108 .alloc_inode = ncp_alloc_inode,
109 .destroy_inode = ncp_destroy_inode,
110 .drop_inode = generic_delete_inode,
111 .evict_inode = ncp_evict_inode,
112 .put_super = ncp_put_super,
113 .statfs = ncp_statfs,
114 .remount_fs = ncp_remount,
115 .show_options = ncp_show_options,
116};
117
118
119
120
121static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
122{
123 NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
124 NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
125 NCP_FINFO(inode)->volNumber = nwinfo->volume;
126}
127
128void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
129{
130 ncp_update_dirent(inode, nwinfo);
131 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
132 NCP_FINFO(inode)->access = nwinfo->access;
133 memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
134 sizeof(nwinfo->file_handle));
135 DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n",
136 nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
137 NCP_FINFO(inode)->dirEntNum);
138}
139
140static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
141{
142
143 DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n",
144 nwi->entryName, nwi->nfs.mode);
145 if (nwi->nfs.mode) {
146
147 inode->i_mode = nwi->nfs.mode;
148 }
149
150 inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
151
152 inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
153 inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
154 inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
155 inode->i_atime.tv_nsec = 0;
156 inode->i_mtime.tv_nsec = 0;
157 inode->i_ctime.tv_nsec = 0;
158}
159
160static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
161{
162 struct nw_info_struct *nwi = &nwinfo->i;
163 struct ncp_server *server = NCP_SERVER(inode);
164
165 if (nwi->attributes & aDIR) {
166 inode->i_mode = server->m.dir_mode;
167
168
169 i_size_write(inode, NCP_BLOCK_SIZE);
170 } else {
171 u32 size;
172
173 inode->i_mode = server->m.file_mode;
174 size = le32_to_cpu(nwi->dataStreamSize);
175 i_size_write(inode, size);
176#ifdef CONFIG_NCPFS_EXTRAS
177 if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS))
178 && (nwi->attributes & aSHARED)) {
179 switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
180 case aHIDDEN:
181 if (server->m.flags & NCP_MOUNT_SYMLINKS) {
182 if (
183 (size <= NCP_MAX_SYMLINK_SIZE)) {
184 inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
185 NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
186 break;
187 }
188 }
189
190 case 0:
191 if (server->m.flags & NCP_MOUNT_EXTRAS)
192 inode->i_mode |= S_IRUGO;
193 break;
194 case aSYSTEM:
195 if (server->m.flags & NCP_MOUNT_EXTRAS)
196 inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
197 break;
198
199 default:
200
201 break;
202 }
203 }
204#endif
205 }
206 if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
207}
208
209void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
210{
211 NCP_FINFO(inode)->flags = 0;
212 if (!atomic_read(&NCP_FINFO(inode)->opened)) {
213 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
214 ncp_update_attrs(inode, nwinfo);
215 }
216
217 ncp_update_dates(inode, &nwinfo->i);
218 ncp_update_dirent(inode, nwinfo);
219}
220
221
222
223
224static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
225{
226 struct ncp_server *server = NCP_SERVER(inode);
227
228 NCP_FINFO(inode)->flags = 0;
229
230 ncp_update_attrs(inode, nwinfo);
231
232 DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
233
234 set_nlink(inode, 1);
235 inode->i_uid = server->m.uid;
236 inode->i_gid = server->m.gid;
237
238 ncp_update_dates(inode, &nwinfo->i);
239 ncp_update_inode(inode, nwinfo);
240}
241
242#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
243static const struct inode_operations ncp_symlink_inode_operations = {
244 .readlink = generic_readlink,
245 .follow_link = page_follow_link_light,
246 .put_link = page_put_link,
247 .setattr = ncp_notify_change,
248};
249#endif
250
251
252
253
254struct inode *
255ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
256{
257 struct inode *inode;
258
259 if (info == NULL) {
260 printk(KERN_ERR "ncp_iget: info is NULL\n");
261 return NULL;
262 }
263
264 inode = new_inode(sb);
265 if (inode) {
266 atomic_set(&NCP_FINFO(inode)->opened, info->opened);
267
268 inode->i_mapping->backing_dev_info = sb->s_bdi;
269 inode->i_ino = info->ino;
270 ncp_set_attr(inode, info);
271 if (S_ISREG(inode->i_mode)) {
272 inode->i_op = &ncp_file_inode_operations;
273 inode->i_fop = &ncp_file_operations;
274 } else if (S_ISDIR(inode->i_mode)) {
275 inode->i_op = &ncp_dir_inode_operations;
276 inode->i_fop = &ncp_dir_operations;
277#ifdef CONFIG_NCPFS_NFS_NS
278 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
279 init_special_inode(inode, inode->i_mode,
280 new_decode_dev(info->i.nfs.rdev));
281#endif
282#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
283 } else if (S_ISLNK(inode->i_mode)) {
284 inode->i_op = &ncp_symlink_inode_operations;
285 inode->i_data.a_ops = &ncp_symlink_aops;
286#endif
287 } else {
288 make_bad_inode(inode);
289 }
290 insert_inode_hash(inode);
291 } else
292 printk(KERN_ERR "ncp_iget: iget failed!\n");
293 return inode;
294}
295
296static void
297ncp_evict_inode(struct inode *inode)
298{
299 truncate_inode_pages(&inode->i_data, 0);
300 clear_inode(inode);
301
302 if (S_ISDIR(inode->i_mode)) {
303 DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino);
304 }
305
306 if (ncp_make_closed(inode) != 0) {
307
308 printk(KERN_ERR "ncp_evict_inode: could not close\n");
309 }
310}
311
312static void ncp_stop_tasks(struct ncp_server *server) {
313 struct sock* sk = server->ncp_sock->sk;
314
315 lock_sock(sk);
316 sk->sk_error_report = server->error_report;
317 sk->sk_data_ready = server->data_ready;
318 sk->sk_write_space = server->write_space;
319 release_sock(sk);
320 del_timer_sync(&server->timeout_tm);
321
322 flush_work(&server->rcv.tq);
323 if (sk->sk_socket->type == SOCK_STREAM)
324 flush_work(&server->tx.tq);
325 else
326 flush_work(&server->timeout_tq);
327}
328
329static int ncp_show_options(struct seq_file *seq, struct dentry *root)
330{
331 struct ncp_server *server = NCP_SBP(root->d_sb);
332 unsigned int tmp;
333
334 if (server->m.uid != 0)
335 seq_printf(seq, ",uid=%u", server->m.uid);
336 if (server->m.gid != 0)
337 seq_printf(seq, ",gid=%u", server->m.gid);
338 if (server->m.mounted_uid != 0)
339 seq_printf(seq, ",owner=%u", server->m.mounted_uid);
340 tmp = server->m.file_mode & S_IALLUGO;
341 if (tmp != NCP_DEFAULT_FILE_MODE)
342 seq_printf(seq, ",mode=0%o", tmp);
343 tmp = server->m.dir_mode & S_IALLUGO;
344 if (tmp != NCP_DEFAULT_DIR_MODE)
345 seq_printf(seq, ",dirmode=0%o", tmp);
346 if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
347 tmp = server->m.time_out * 100 / HZ;
348 seq_printf(seq, ",timeout=%u", tmp);
349 }
350 if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
351 seq_printf(seq, ",retry=%u", server->m.retry_count);
352 if (server->m.flags != 0)
353 seq_printf(seq, ",flags=%lu", server->m.flags);
354 if (server->m.wdog_pid != NULL)
355 seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));
356
357 return 0;
358}
359
360static const struct ncp_option ncp_opts[] = {
361 { "uid", OPT_INT, 'u' },
362 { "gid", OPT_INT, 'g' },
363 { "owner", OPT_INT, 'o' },
364 { "mode", OPT_INT, 'm' },
365 { "dirmode", OPT_INT, 'd' },
366 { "timeout", OPT_INT, 't' },
367 { "retry", OPT_INT, 'r' },
368 { "flags", OPT_INT, 'f' },
369 { "wdogpid", OPT_INT, 'w' },
370 { "ncpfd", OPT_INT, 'n' },
371 { "infofd", OPT_INT, 'i' },
372 { "version", OPT_INT, 'v' },
373 { NULL, 0, 0 } };
374
375static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
376 int optval;
377 char *optarg;
378 unsigned long optint;
379 int version = 0;
380 int ret;
381
382 data->flags = 0;
383 data->int_flags = 0;
384 data->mounted_uid = 0;
385 data->wdog_pid = NULL;
386 data->ncp_fd = ~0;
387 data->time_out = NCP_DEFAULT_TIME_OUT;
388 data->retry_count = NCP_DEFAULT_RETRY_COUNT;
389 data->uid = 0;
390 data->gid = 0;
391 data->file_mode = NCP_DEFAULT_FILE_MODE;
392 data->dir_mode = NCP_DEFAULT_DIR_MODE;
393 data->info_fd = -1;
394 data->mounted_vol[0] = 0;
395
396 while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
397 ret = optval;
398 if (ret < 0)
399 goto err;
400 switch (optval) {
401 case 'u':
402 data->uid = optint;
403 break;
404 case 'g':
405 data->gid = optint;
406 break;
407 case 'o':
408 data->mounted_uid = optint;
409 break;
410 case 'm':
411 data->file_mode = optint;
412 break;
413 case 'd':
414 data->dir_mode = optint;
415 break;
416 case 't':
417 data->time_out = optint;
418 break;
419 case 'r':
420 data->retry_count = optint;
421 break;
422 case 'f':
423 data->flags = optint;
424 break;
425 case 'w':
426 data->wdog_pid = find_get_pid(optint);
427 break;
428 case 'n':
429 data->ncp_fd = optint;
430 break;
431 case 'i':
432 data->info_fd = optint;
433 break;
434 case 'v':
435 ret = -ECHRNG;
436 if (optint < NCP_MOUNT_VERSION_V4)
437 goto err;
438 if (optint > NCP_MOUNT_VERSION_V5)
439 goto err;
440 version = optint;
441 break;
442
443 }
444 }
445 return 0;
446err:
447 put_pid(data->wdog_pid);
448 data->wdog_pid = NULL;
449 return ret;
450}
451
452static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
453{
454 struct ncp_mount_data_kernel data;
455 struct ncp_server *server;
456 struct file *ncp_filp;
457 struct inode *root_inode;
458 struct inode *sock_inode;
459 struct socket *sock;
460 int error;
461 int default_bufsize;
462#ifdef CONFIG_NCPFS_PACKET_SIGNING
463 int options;
464#endif
465 struct ncp_entry_info finfo;
466
467 memset(&data, 0, sizeof(data));
468 server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
469 if (!server)
470 return -ENOMEM;
471 sb->s_fs_info = server;
472
473 error = -EFAULT;
474 if (raw_data == NULL)
475 goto out;
476 switch (*(int*)raw_data) {
477 case NCP_MOUNT_VERSION:
478 {
479 struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
480
481 data.flags = md->flags;
482 data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
483 data.mounted_uid = md->mounted_uid;
484 data.wdog_pid = find_get_pid(md->wdog_pid);
485 data.ncp_fd = md->ncp_fd;
486 data.time_out = md->time_out;
487 data.retry_count = md->retry_count;
488 data.uid = md->uid;
489 data.gid = md->gid;
490 data.file_mode = md->file_mode;
491 data.dir_mode = md->dir_mode;
492 data.info_fd = -1;
493 memcpy(data.mounted_vol, md->mounted_vol,
494 NCP_VOLNAME_LEN+1);
495 }
496 break;
497 case NCP_MOUNT_VERSION_V4:
498 {
499 struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
500
501 data.flags = md->flags;
502 data.mounted_uid = md->mounted_uid;
503 data.wdog_pid = find_get_pid(md->wdog_pid);
504 data.ncp_fd = md->ncp_fd;
505 data.time_out = md->time_out;
506 data.retry_count = md->retry_count;
507 data.uid = md->uid;
508 data.gid = md->gid;
509 data.file_mode = md->file_mode;
510 data.dir_mode = md->dir_mode;
511 data.info_fd = -1;
512 }
513 break;
514 default:
515 error = -ECHRNG;
516 if (memcmp(raw_data, "vers", 4) == 0) {
517 error = ncp_parse_options(&data, raw_data);
518 }
519 if (error)
520 goto out;
521 break;
522 }
523 error = -EBADF;
524 ncp_filp = fget(data.ncp_fd);
525 if (!ncp_filp)
526 goto out;
527 error = -ENOTSOCK;
528 sock_inode = ncp_filp->f_path.dentry->d_inode;
529 if (!S_ISSOCK(sock_inode->i_mode))
530 goto out_fput;
531 sock = SOCKET_I(sock_inode);
532 if (!sock)
533 goto out_fput;
534
535 if (sock->type == SOCK_STREAM)
536 default_bufsize = 0xF000;
537 else
538 default_bufsize = 1024;
539
540 sb->s_flags |= MS_NODIRATIME;
541 sb->s_maxbytes = 0xFFFFFFFFU;
542 sb->s_blocksize = 1024;
543 sb->s_blocksize_bits = 10;
544 sb->s_magic = NCP_SUPER_MAGIC;
545 sb->s_op = &ncp_sops;
546 sb->s_d_op = &ncp_dentry_operations;
547 sb->s_bdi = &server->bdi;
548
549 server = NCP_SBP(sb);
550 memset(server, 0, sizeof(*server));
551
552 error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
553 if (error)
554 goto out_fput;
555
556 server->ncp_filp = ncp_filp;
557 server->ncp_sock = sock;
558
559 if (data.info_fd != -1) {
560 struct socket *info_sock;
561
562 error = -EBADF;
563 server->info_filp = fget(data.info_fd);
564 if (!server->info_filp)
565 goto out_bdi;
566 error = -ENOTSOCK;
567 sock_inode = server->info_filp->f_path.dentry->d_inode;
568 if (!S_ISSOCK(sock_inode->i_mode))
569 goto out_fput2;
570 info_sock = SOCKET_I(sock_inode);
571 if (!info_sock)
572 goto out_fput2;
573 error = -EBADFD;
574 if (info_sock->type != SOCK_STREAM)
575 goto out_fput2;
576 server->info_sock = info_sock;
577 }
578
579
580 mutex_init(&server->mutex);
581 server->packet = NULL;
582
583
584
585
586 mutex_init(&server->root_setup_lock);
587#ifdef CONFIG_NCPFS_PACKET_SIGNING
588
589
590#endif
591 init_rwsem(&server->auth_rwsem);
592 server->auth.auth_type = NCP_AUTH_NONE;
593
594
595
596
597
598
599 server->m = data;
600
601
602 if (server->m.time_out < 1) {
603 server->m.time_out = 10;
604 printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
605 }
606 server->m.time_out = server->m.time_out * HZ / 100;
607 server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
608 server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;
609
610#ifdef CONFIG_NCPFS_NLS
611
612 server->nls_vol = load_nls_default();
613 server->nls_io = load_nls_default();
614#endif
615
616 atomic_set(&server->dentry_ttl, 0);
617
618 INIT_LIST_HEAD(&server->tx.requests);
619 mutex_init(&server->rcv.creq_mutex);
620 server->tx.creq = NULL;
621 server->rcv.creq = NULL;
622
623 init_timer(&server->timeout_tm);
624#undef NCP_PACKET_SIZE
625#define NCP_PACKET_SIZE 131072
626 error = -ENOMEM;
627 server->packet_size = NCP_PACKET_SIZE;
628 server->packet = vmalloc(NCP_PACKET_SIZE);
629 if (server->packet == NULL)
630 goto out_nls;
631 server->txbuf = vmalloc(NCP_PACKET_SIZE);
632 if (server->txbuf == NULL)
633 goto out_packet;
634 server->rxbuf = vmalloc(NCP_PACKET_SIZE);
635 if (server->rxbuf == NULL)
636 goto out_txbuf;
637
638 lock_sock(sock->sk);
639 server->data_ready = sock->sk->sk_data_ready;
640 server->write_space = sock->sk->sk_write_space;
641 server->error_report = sock->sk->sk_error_report;
642 sock->sk->sk_user_data = server;
643 sock->sk->sk_data_ready = ncp_tcp_data_ready;
644 sock->sk->sk_error_report = ncp_tcp_error_report;
645 if (sock->type == SOCK_STREAM) {
646 server->rcv.ptr = (unsigned char*)&server->rcv.buf;
647 server->rcv.len = 10;
648 server->rcv.state = 0;
649 INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
650 INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
651 sock->sk->sk_write_space = ncp_tcp_write_space;
652 } else {
653 INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
654 INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
655 server->timeout_tm.data = (unsigned long)server;
656 server->timeout_tm.function = ncpdgram_timeout_call;
657 }
658 release_sock(sock->sk);
659
660 ncp_lock_server(server);
661 error = ncp_connect(server);
662 ncp_unlock_server(server);
663 if (error < 0)
664 goto out_rxbuf;
665 DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
666
667 error = -EMSGSIZE;
668#ifdef CONFIG_NCPFS_PACKET_SIGNING
669 if (ncp_negotiate_size_and_options(server, default_bufsize,
670 NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
671 {
672 if (options != NCP_DEFAULT_OPTIONS)
673 {
674 if (ncp_negotiate_size_and_options(server,
675 default_bufsize,
676 options & 2,
677 &(server->buffer_size), &options) != 0)
678
679 {
680 goto out_disconnect;
681 }
682 }
683 ncp_lock_server(server);
684 if (options & 2)
685 server->sign_wanted = 1;
686 ncp_unlock_server(server);
687 }
688 else
689#endif
690 if (ncp_negotiate_buffersize(server, default_bufsize,
691 &(server->buffer_size)) != 0)
692 goto out_disconnect;
693 DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
694
695 memset(&finfo, 0, sizeof(finfo));
696 finfo.i.attributes = aDIR;
697 finfo.i.dataStreamSize = 0;
698 finfo.i.dirEntNum = 0;
699 finfo.i.DosDirNum = 0;
700#ifdef CONFIG_NCPFS_SMALLDOS
701 finfo.i.NSCreator = NW_NS_DOS;
702#endif
703 finfo.volume = NCP_NUMBER_OF_VOLUMES;
704
705 finfo.i.creationTime = finfo.i.modifyTime
706 = cpu_to_le16(0x0000);
707 finfo.i.creationDate = finfo.i.modifyDate
708 = finfo.i.lastAccessDate
709 = cpu_to_le16(0x0C21);
710 finfo.i.nameLen = 0;
711 finfo.i.entryName[0] = '\0';
712
713 finfo.opened = 0;
714 finfo.ino = 2;
715
716 server->name_space[finfo.volume] = NW_NS_DOS;
717
718 error = -ENOMEM;
719 root_inode = ncp_iget(sb, &finfo);
720 if (!root_inode)
721 goto out_disconnect;
722 DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
723 sb->s_root = d_make_root(root_inode);
724 if (!sb->s_root)
725 goto out_disconnect;
726 return 0;
727
728out_disconnect:
729 ncp_lock_server(server);
730 ncp_disconnect(server);
731 ncp_unlock_server(server);
732out_rxbuf:
733 ncp_stop_tasks(server);
734 vfree(server->rxbuf);
735out_txbuf:
736 vfree(server->txbuf);
737out_packet:
738 vfree(server->packet);
739out_nls:
740#ifdef CONFIG_NCPFS_NLS
741 unload_nls(server->nls_io);
742 unload_nls(server->nls_vol);
743#endif
744 mutex_destroy(&server->rcv.creq_mutex);
745 mutex_destroy(&server->root_setup_lock);
746 mutex_destroy(&server->mutex);
747out_fput2:
748 if (server->info_filp)
749 fput(server->info_filp);
750out_bdi:
751 bdi_destroy(&server->bdi);
752out_fput:
753
754
755
756
757
758 fput(ncp_filp);
759out:
760 put_pid(data.wdog_pid);
761 sb->s_fs_info = NULL;
762 kfree(server);
763 return error;
764}
765
766static void ncp_put_super(struct super_block *sb)
767{
768 struct ncp_server *server = NCP_SBP(sb);
769
770 ncp_lock_server(server);
771 ncp_disconnect(server);
772 ncp_unlock_server(server);
773
774 ncp_stop_tasks(server);
775
776#ifdef CONFIG_NCPFS_NLS
777
778 unload_nls(server->nls_vol);
779 unload_nls(server->nls_io);
780#endif
781 mutex_destroy(&server->rcv.creq_mutex);
782 mutex_destroy(&server->root_setup_lock);
783 mutex_destroy(&server->mutex);
784
785 if (server->info_filp)
786 fput(server->info_filp);
787 fput(server->ncp_filp);
788 kill_pid(server->m.wdog_pid, SIGTERM, 1);
789 put_pid(server->m.wdog_pid);
790
791 bdi_destroy(&server->bdi);
792 kfree(server->priv.data);
793 kfree(server->auth.object_name);
794 vfree(server->rxbuf);
795 vfree(server->txbuf);
796 vfree(server->packet);
797 sb->s_fs_info = NULL;
798 kfree(server);
799}
800
801static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
802{
803 struct dentry* d;
804 struct inode* i;
805 struct ncp_inode_info* ni;
806 struct ncp_server* s;
807 struct ncp_volume_info vi;
808 struct super_block *sb = dentry->d_sb;
809 int err;
810 __u8 dh;
811
812 d = sb->s_root;
813 if (!d) {
814 goto dflt;
815 }
816 i = d->d_inode;
817 if (!i) {
818 goto dflt;
819 }
820 ni = NCP_FINFO(i);
821 if (!ni) {
822 goto dflt;
823 }
824 s = NCP_SBP(sb);
825 if (!s) {
826 goto dflt;
827 }
828 if (!s->m.mounted_vol[0]) {
829 goto dflt;
830 }
831
832 err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
833 if (err) {
834 goto dflt;
835 }
836 err = ncp_get_directory_info(s, dh, &vi);
837 ncp_dirhandle_free(s, dh);
838 if (err) {
839 goto dflt;
840 }
841 buf->f_type = NCP_SUPER_MAGIC;
842 buf->f_bsize = vi.sectors_per_block * 512;
843 buf->f_blocks = vi.total_blocks;
844 buf->f_bfree = vi.free_blocks;
845 buf->f_bavail = vi.free_blocks;
846 buf->f_files = vi.total_dir_entries;
847 buf->f_ffree = vi.available_dir_entries;
848 buf->f_namelen = 12;
849 return 0;
850
851
852
853
854
855
856
857dflt:;
858 buf->f_type = NCP_SUPER_MAGIC;
859 buf->f_bsize = NCP_BLOCK_SIZE;
860 buf->f_blocks = 0;
861 buf->f_bfree = 0;
862 buf->f_bavail = 0;
863 buf->f_namelen = 12;
864 return 0;
865}
866
867int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
868{
869 struct inode *inode = dentry->d_inode;
870 int result = 0;
871 __le32 info_mask;
872 struct nw_modify_dos_info info;
873 struct ncp_server *server;
874
875 result = -EIO;
876
877 server = NCP_SERVER(inode);
878 if (!server)
879 goto out;
880
881
882 ncp_age_dentry(server, dentry);
883
884 result = inode_change_ok(inode, attr);
885 if (result < 0)
886 goto out;
887
888 result = -EPERM;
889 if (((attr->ia_valid & ATTR_UID) &&
890 (attr->ia_uid != server->m.uid)))
891 goto out;
892
893 if (((attr->ia_valid & ATTR_GID) &&
894 (attr->ia_gid != server->m.gid)))
895 goto out;
896
897 if (((attr->ia_valid & ATTR_MODE) &&
898 (attr->ia_mode &
899 ~(S_IFREG | S_IFDIR | S_IRWXUGO))))
900 goto out;
901
902 info_mask = 0;
903 memset(&info, 0, sizeof(info));
904
905#if 1
906 if ((attr->ia_valid & ATTR_MODE) != 0)
907 {
908 umode_t newmode = attr->ia_mode;
909
910 info_mask |= DM_ATTRIBUTES;
911
912 if (S_ISDIR(inode->i_mode)) {
913 newmode &= server->m.dir_mode;
914 } else {
915#ifdef CONFIG_NCPFS_EXTRAS
916 if (server->m.flags & NCP_MOUNT_EXTRAS) {
917
918 if (newmode & ~server->m.file_mode & S_IXUGO)
919 info.attributes |= aSHARED | aSYSTEM;
920
921 else if (newmode & ~server->m.file_mode & S_IRUGO)
922 info.attributes |= aSHARED;
923 } else
924#endif
925 newmode &= server->m.file_mode;
926 }
927 if (newmode & S_IWUGO)
928 info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
929 else
930 info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
931
932#ifdef CONFIG_NCPFS_NFS_NS
933 if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
934 result = ncp_modify_nfs_info(server,
935 NCP_FINFO(inode)->volNumber,
936 NCP_FINFO(inode)->dirEntNum,
937 attr->ia_mode, 0);
938 if (result != 0)
939 goto out;
940 info.attributes &= ~(aSHARED | aSYSTEM);
941 {
942
943 struct iattr tmpattr;
944
945 tmpattr.ia_valid = ATTR_MODE;
946 tmpattr.ia_mode = attr->ia_mode;
947
948 setattr_copy(inode, &tmpattr);
949 mark_inode_dirty(inode);
950 }
951 }
952#endif
953 }
954#endif
955
956
957
958 if ((attr->ia_valid & ATTR_SIZE) != 0) {
959 int written;
960
961 DPRINTK("ncpfs: trying to change size to %ld\n",
962 attr->ia_size);
963
964 if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
965 result = -EACCES;
966 goto out;
967 }
968 ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
969 attr->ia_size, 0, "", &written);
970
971
972
973 ncp_inode_close(inode);
974 result = ncp_make_closed(inode);
975 if (result)
976 goto out;
977
978 if (attr->ia_size != i_size_read(inode)) {
979 result = vmtruncate(inode, attr->ia_size);
980 if (result)
981 goto out;
982 mark_inode_dirty(inode);
983 }
984 }
985 if ((attr->ia_valid & ATTR_CTIME) != 0) {
986 info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
987 ncp_date_unix2dos(attr->ia_ctime.tv_sec,
988 &info.creationTime, &info.creationDate);
989 }
990 if ((attr->ia_valid & ATTR_MTIME) != 0) {
991 info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
992 ncp_date_unix2dos(attr->ia_mtime.tv_sec,
993 &info.modifyTime, &info.modifyDate);
994 }
995 if ((attr->ia_valid & ATTR_ATIME) != 0) {
996 __le16 dummy;
997 info_mask |= (DM_LAST_ACCESS_DATE);
998 ncp_date_unix2dos(attr->ia_atime.tv_sec,
999 &dummy, &info.lastAccessDate);
1000 }
1001 if (info_mask != 0) {
1002 result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
1003 inode, info_mask, &info);
1004 if (result != 0) {
1005 if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
1006
1007
1008
1009
1010
1011 result = 0;
1012 } else
1013 goto out;
1014 }
1015#ifdef CONFIG_NCPFS_STRONG
1016 if ((!result) && (info_mask & DM_ATTRIBUTES))
1017 NCP_FINFO(inode)->nwattr = info.attributes;
1018#endif
1019 }
1020 if (result)
1021 goto out;
1022
1023 setattr_copy(inode, attr);
1024 mark_inode_dirty(inode);
1025
1026out:
1027 if (result > 0)
1028 result = -EACCES;
1029 return result;
1030}
1031
1032static struct dentry *ncp_mount(struct file_system_type *fs_type,
1033 int flags, const char *dev_name, void *data)
1034{
1035 return mount_nodev(fs_type, flags, data, ncp_fill_super);
1036}
1037
1038static struct file_system_type ncp_fs_type = {
1039 .owner = THIS_MODULE,
1040 .name = "ncpfs",
1041 .mount = ncp_mount,
1042 .kill_sb = kill_anon_super,
1043 .fs_flags = FS_BINARY_MOUNTDATA,
1044};
1045
1046static int __init init_ncp_fs(void)
1047{
1048 int err;
1049 DPRINTK("ncpfs: init_ncp_fs called\n");
1050
1051 err = init_inodecache();
1052 if (err)
1053 goto out1;
1054 err = register_filesystem(&ncp_fs_type);
1055 if (err)
1056 goto out;
1057 return 0;
1058out:
1059 destroy_inodecache();
1060out1:
1061 return err;
1062}
1063
1064static void __exit exit_ncp_fs(void)
1065{
1066 DPRINTK("ncpfs: exit_ncp_fs called\n");
1067 unregister_filesystem(&ncp_fs_type);
1068 destroy_inodecache();
1069}
1070
1071module_init(init_ncp_fs)
1072module_exit(exit_ncp_fs)
1073MODULE_LICENSE("GPL");
1074
