blob: 3d1e34f8a68e2b70a0cce3bc32321bf3ff3a1241 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include <linux/vfs.h>
Miklos Szeredi564cd132008-02-08 04:21:46 -080030#include <linux/mount.h>
31#include <linux/seq_file.h>
Nick Piggin34286d62011-01-07 17:49:57 +110032#include <linux/namei.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <net/sock.h>
35
Al Viro32c419d2011-01-12 17:37:47 -050036#include "ncp_fs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070037#include "getopt.h"
38
Miklos Szeredi564cd132008-02-08 04:21:46 -080039#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
Al Viro94ee8492010-06-07 00:45:56 -040044static void ncp_evict_inode(struct inode *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070045static void ncp_put_super(struct super_block *);
David Howells726c3342006-06-23 02:02:58 -070046static int ncp_statfs(struct dentry *, struct kstatfs *);
Al Viro34c80b12011-12-08 21:32:45 -050047static int ncp_show_options(struct seq_file *, struct dentry *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
Christoph Lametere18b8902006-12-06 20:33:20 -080049static struct kmem_cache * ncp_inode_cachep;
Linus Torvalds1da177e2005-04-16 15:20:36 -070050
51static struct inode *ncp_alloc_inode(struct super_block *sb)
52{
53 struct ncp_inode_info *ei;
Christoph Lametere94b1762006-12-06 20:33:17 -080054 ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 if (!ei)
56 return NULL;
57 return &ei->vfs_inode;
58}
59
Nick Pigginfa0d7e32011-01-07 17:49:49 +110060static void ncp_i_callback(struct rcu_head *head)
61{
62 struct inode *inode = container_of(head, struct inode, i_rcu);
Nick Pigginfa0d7e32011-01-07 17:49:49 +110063 kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
64}
65
Linus Torvalds1da177e2005-04-16 15:20:36 -070066static void ncp_destroy_inode(struct inode *inode)
67{
Nick Pigginfa0d7e32011-01-07 17:49:49 +110068 call_rcu(&inode->i_rcu, ncp_i_callback);
Linus Torvalds1da177e2005-04-16 15:20:36 -070069}
70
Alexey Dobriyan51cc5062008-07-25 19:45:34 -070071static void init_once(void *foo)
Linus Torvalds1da177e2005-04-16 15:20:36 -070072{
73 struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
74
Christoph Lametera35afb82007-05-16 22:10:57 -070075 mutex_init(&ei->open_mutex);
76 inode_init_once(&ei->vfs_inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -070077}
Paul Mundt20c2df82007-07-20 10:11:58 +090078
Linus Torvalds1da177e2005-04-16 15:20:36 -070079static int init_inodecache(void)
80{
81 ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
82 sizeof(struct ncp_inode_info),
Paul Jacksonfffb60f2006-03-24 03:16:06 -080083 0, (SLAB_RECLAIM_ACCOUNT|
84 SLAB_MEM_SPREAD),
Paul Mundt20c2df82007-07-20 10:11:58 +090085 init_once);
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 if (ncp_inode_cachep == NULL)
87 return -ENOMEM;
88 return 0;
89}
90
91static void destroy_inodecache(void)
92{
Alexey Dobriyan1a1d92c2006-09-27 01:49:40 -070093 kmem_cache_destroy(ncp_inode_cachep);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094}
95
96static int ncp_remount(struct super_block *sb, int *flags, char* data)
97{
98 *flags |= MS_NODIRATIME;
99 return 0;
100}
101
Josef 'Jeff' Sipekee9b6d62007-02-12 00:55:41 -0800102static const struct super_operations ncp_sops =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
104 .alloc_inode = ncp_alloc_inode,
105 .destroy_inode = ncp_destroy_inode,
106 .drop_inode = generic_delete_inode,
Al Viro94ee8492010-06-07 00:45:56 -0400107 .evict_inode = ncp_evict_inode,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 .put_super = ncp_put_super,
109 .statfs = ncp_statfs,
110 .remount_fs = ncp_remount,
Miklos Szeredi564cd132008-02-08 04:21:46 -0800111 .show_options = ncp_show_options,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112};
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114/*
115 * Fill in the ncpfs-specific information in the inode.
116 */
117static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
118{
119 NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
120 NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
121 NCP_FINFO(inode)->volNumber = nwinfo->volume;
122}
123
124void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
125{
126 ncp_update_dirent(inode, nwinfo);
127 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
128 NCP_FINFO(inode)->access = nwinfo->access;
129 memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
130 sizeof(nwinfo->file_handle));
131 DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n",
132 nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
133 NCP_FINFO(inode)->dirEntNum);
134}
135
136static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
137{
138 /* NFS namespace mode overrides others if it's set. */
139 DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n",
140 nwi->entryName, nwi->nfs.mode);
141 if (nwi->nfs.mode) {
142 /* XXX Security? */
143 inode->i_mode = nwi->nfs.mode;
144 }
145
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200146 inode->i_blocks = (i_size_read(inode) + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148 inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
149 inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
150 inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
151 inode->i_atime.tv_nsec = 0;
152 inode->i_mtime.tv_nsec = 0;
153 inode->i_ctime.tv_nsec = 0;
154}
155
156static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
157{
158 struct nw_info_struct *nwi = &nwinfo->i;
159 struct ncp_server *server = NCP_SERVER(inode);
160
161 if (nwi->attributes & aDIR) {
162 inode->i_mode = server->m.dir_mode;
163 /* for directories dataStreamSize seems to be some
164 Object ID ??? */
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200165 i_size_write(inode, NCP_BLOCK_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 } else {
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200167 u32 size;
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 inode->i_mode = server->m.file_mode;
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200170 size = le32_to_cpu(nwi->dataStreamSize);
171 i_size_write(inode, size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172#ifdef CONFIG_NCPFS_EXTRAS
173 if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS))
174 && (nwi->attributes & aSHARED)) {
175 switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
176 case aHIDDEN:
177 if (server->m.flags & NCP_MOUNT_SYMLINKS) {
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200178 if (/* (size >= NCP_MIN_SYMLINK_SIZE)
179 && */ (size <= NCP_MAX_SYMLINK_SIZE)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
181 NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
182 break;
183 }
184 }
185 /* FALLTHROUGH */
186 case 0:
187 if (server->m.flags & NCP_MOUNT_EXTRAS)
188 inode->i_mode |= S_IRUGO;
189 break;
190 case aSYSTEM:
191 if (server->m.flags & NCP_MOUNT_EXTRAS)
192 inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
193 break;
194 /* case aSYSTEM|aHIDDEN: */
195 default:
196 /* reserved combination */
197 break;
198 }
199 }
200#endif
201 }
202 if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
203}
204
205void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
206{
207 NCP_FINFO(inode)->flags = 0;
208 if (!atomic_read(&NCP_FINFO(inode)->opened)) {
209 NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
210 ncp_update_attrs(inode, nwinfo);
211 }
212
213 ncp_update_dates(inode, &nwinfo->i);
214 ncp_update_dirent(inode, nwinfo);
215}
216
217/*
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200218 * Fill in the inode based on the ncp_entry_info structure. Used only for brand new inodes.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 */
220static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
221{
222 struct ncp_server *server = NCP_SERVER(inode);
223
224 NCP_FINFO(inode)->flags = 0;
225
226 ncp_update_attrs(inode, nwinfo);
227
228 DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
229
Miklos Szeredibfe86842011-10-28 14:13:29 +0200230 set_nlink(inode, 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 inode->i_uid = server->m.uid;
232 inode->i_gid = server->m.gid;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
234 ncp_update_dates(inode, &nwinfo->i);
235 ncp_update_inode(inode, nwinfo);
236}
237
238#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
Arjan van de Ven92e1d5b2007-02-12 00:55:39 -0800239static const struct inode_operations ncp_symlink_inode_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 .readlink = generic_readlink,
241 .follow_link = page_follow_link_light,
242 .put_link = page_put_link,
243 .setattr = ncp_notify_change,
244};
245#endif
246
247/*
248 * Get a new inode.
249 */
250struct inode *
251ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
252{
253 struct inode *inode;
254
255 if (info == NULL) {
256 printk(KERN_ERR "ncp_iget: info is NULL\n");
257 return NULL;
258 }
259
260 inode = new_inode(sb);
261 if (inode) {
262 atomic_set(&NCP_FINFO(inode)->opened, info->opened);
263
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200264 inode->i_mapping->backing_dev_info = sb->s_bdi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 inode->i_ino = info->ino;
266 ncp_set_attr(inode, info);
267 if (S_ISREG(inode->i_mode)) {
268 inode->i_op = &ncp_file_inode_operations;
269 inode->i_fop = &ncp_file_operations;
270 } else if (S_ISDIR(inode->i_mode)) {
271 inode->i_op = &ncp_dir_inode_operations;
272 inode->i_fop = &ncp_dir_operations;
273#ifdef CONFIG_NCPFS_NFS_NS
274 } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
275 init_special_inode(inode, inode->i_mode,
276 new_decode_dev(info->i.nfs.rdev));
277#endif
278#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
279 } else if (S_ISLNK(inode->i_mode)) {
280 inode->i_op = &ncp_symlink_inode_operations;
281 inode->i_data.a_ops = &ncp_symlink_aops;
282#endif
283 } else {
284 make_bad_inode(inode);
285 }
286 insert_inode_hash(inode);
287 } else
288 printk(KERN_ERR "ncp_iget: iget failed!\n");
289 return inode;
290}
291
292static void
Al Viro94ee8492010-06-07 00:45:56 -0400293ncp_evict_inode(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294{
Mark Fashehfef26652005-09-09 13:01:31 -0700295 truncate_inode_pages(&inode->i_data, 0);
Al Viro94ee8492010-06-07 00:45:56 -0400296 end_writeback(inode);
Mark Fashehfef26652005-09-09 13:01:31 -0700297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 if (S_ISDIR(inode->i_mode)) {
Al Viro94ee8492010-06-07 00:45:56 -0400299 DDPRINTK("ncp_evict_inode: put directory %ld\n", inode->i_ino);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300 }
301
302 if (ncp_make_closed(inode) != 0) {
303 /* We can't do anything but complain. */
Al Viro94ee8492010-06-07 00:45:56 -0400304 printk(KERN_ERR "ncp_evict_inode: could not close\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306}
307
308static void ncp_stop_tasks(struct ncp_server *server) {
309 struct sock* sk = server->ncp_sock->sk;
Petr Vandrovec2a4df5d2010-09-29 14:39:11 +0200310
311 lock_sock(sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 sk->sk_error_report = server->error_report;
313 sk->sk_data_ready = server->data_ready;
314 sk->sk_write_space = server->write_space;
Petr Vandrovec2a4df5d2010-09-29 14:39:11 +0200315 release_sock(sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 del_timer_sync(&server->timeout_tm);
Tejun Heo5d8e4bd2010-12-24 15:59:06 +0100317
318 flush_work_sync(&server->rcv.tq);
319 if (sk->sk_socket->type == SOCK_STREAM)
320 flush_work_sync(&server->tx.tq);
321 else
322 flush_work_sync(&server->timeout_tq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323}
324
Al Viro34c80b12011-12-08 21:32:45 -0500325static int ncp_show_options(struct seq_file *seq, struct dentry *root)
Miklos Szeredi564cd132008-02-08 04:21:46 -0800326{
Al Viro34c80b12011-12-08 21:32:45 -0500327 struct ncp_server *server = NCP_SBP(root->d_sb);
Miklos Szeredi564cd132008-02-08 04:21:46 -0800328 unsigned int tmp;
329
330 if (server->m.uid != 0)
331 seq_printf(seq, ",uid=%u", server->m.uid);
332 if (server->m.gid != 0)
333 seq_printf(seq, ",gid=%u", server->m.gid);
334 if (server->m.mounted_uid != 0)
335 seq_printf(seq, ",owner=%u", server->m.mounted_uid);
336 tmp = server->m.file_mode & S_IALLUGO;
337 if (tmp != NCP_DEFAULT_FILE_MODE)
338 seq_printf(seq, ",mode=0%o", tmp);
339 tmp = server->m.dir_mode & S_IALLUGO;
340 if (tmp != NCP_DEFAULT_DIR_MODE)
341 seq_printf(seq, ",dirmode=0%o", tmp);
342 if (server->m.time_out != NCP_DEFAULT_TIME_OUT * HZ / 100) {
343 tmp = server->m.time_out * 100 / HZ;
344 seq_printf(seq, ",timeout=%u", tmp);
345 }
346 if (server->m.retry_count != NCP_DEFAULT_RETRY_COUNT)
347 seq_printf(seq, ",retry=%u", server->m.retry_count);
348 if (server->m.flags != 0)
349 seq_printf(seq, ",flags=%lu", server->m.flags);
350 if (server->m.wdog_pid != NULL)
351 seq_printf(seq, ",wdogpid=%u", pid_vnr(server->m.wdog_pid));
352
353 return 0;
354}
355
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356static const struct ncp_option ncp_opts[] = {
357 { "uid", OPT_INT, 'u' },
358 { "gid", OPT_INT, 'g' },
359 { "owner", OPT_INT, 'o' },
360 { "mode", OPT_INT, 'm' },
361 { "dirmode", OPT_INT, 'd' },
362 { "timeout", OPT_INT, 't' },
363 { "retry", OPT_INT, 'r' },
364 { "flags", OPT_INT, 'f' },
365 { "wdogpid", OPT_INT, 'w' },
366 { "ncpfd", OPT_INT, 'n' },
367 { "infofd", OPT_INT, 'i' }, /* v5 */
368 { "version", OPT_INT, 'v' },
369 { NULL, 0, 0 } };
370
371static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
372 int optval;
373 char *optarg;
374 unsigned long optint;
375 int version = 0;
Eric W. Biederman1de24122006-12-13 00:35:13 -0800376 int ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 data->flags = 0;
379 data->int_flags = 0;
380 data->mounted_uid = 0;
Eric W. Biederman21542272006-12-13 00:35:11 -0800381 data->wdog_pid = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 data->ncp_fd = ~0;
Miklos Szeredi564cd132008-02-08 04:21:46 -0800383 data->time_out = NCP_DEFAULT_TIME_OUT;
384 data->retry_count = NCP_DEFAULT_RETRY_COUNT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 data->uid = 0;
386 data->gid = 0;
Miklos Szeredi564cd132008-02-08 04:21:46 -0800387 data->file_mode = NCP_DEFAULT_FILE_MODE;
388 data->dir_mode = NCP_DEFAULT_DIR_MODE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 data->info_fd = -1;
390 data->mounted_vol[0] = 0;
391
392 while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
Eric W. Biederman1de24122006-12-13 00:35:13 -0800393 ret = optval;
394 if (ret < 0)
395 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 switch (optval) {
397 case 'u':
398 data->uid = optint;
399 break;
400 case 'g':
401 data->gid = optint;
402 break;
403 case 'o':
404 data->mounted_uid = optint;
405 break;
406 case 'm':
407 data->file_mode = optint;
408 break;
409 case 'd':
410 data->dir_mode = optint;
411 break;
412 case 't':
413 data->time_out = optint;
414 break;
415 case 'r':
416 data->retry_count = optint;
417 break;
418 case 'f':
419 data->flags = optint;
420 break;
421 case 'w':
Eric W. Biederman21542272006-12-13 00:35:11 -0800422 data->wdog_pid = find_get_pid(optint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 break;
424 case 'n':
425 data->ncp_fd = optint;
426 break;
427 case 'i':
428 data->info_fd = optint;
429 break;
430 case 'v':
Eric W. Biederman1de24122006-12-13 00:35:13 -0800431 ret = -ECHRNG;
432 if (optint < NCP_MOUNT_VERSION_V4)
433 goto err;
434 if (optint > NCP_MOUNT_VERSION_V5)
435 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 version = optint;
437 break;
438
439 }
440 }
441 return 0;
Eric W. Biederman1de24122006-12-13 00:35:13 -0800442err:
443 put_pid(data->wdog_pid);
444 data->wdog_pid = NULL;
445 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446}
447
448static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
449{
450 struct ncp_mount_data_kernel data;
451 struct ncp_server *server;
452 struct file *ncp_filp;
453 struct inode *root_inode;
454 struct inode *sock_inode;
455 struct socket *sock;
456 int error;
457 int default_bufsize;
458#ifdef CONFIG_NCPFS_PACKET_SIGNING
459 int options;
460#endif
461 struct ncp_entry_info finfo;
462
Andrew Morton2a5cac12011-05-24 17:13:42 -0700463 memset(&data, 0, sizeof(data));
Panagiotis Issarisf8314dc2006-09-27 01:49:37 -0700464 server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 if (!server)
466 return -ENOMEM;
467 sb->s_fs_info = server;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468
469 error = -EFAULT;
470 if (raw_data == NULL)
471 goto out;
472 switch (*(int*)raw_data) {
473 case NCP_MOUNT_VERSION:
474 {
475 struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
476
477 data.flags = md->flags;
478 data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
479 data.mounted_uid = md->mounted_uid;
Eric W. Biederman21542272006-12-13 00:35:11 -0800480 data.wdog_pid = find_get_pid(md->wdog_pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 data.ncp_fd = md->ncp_fd;
482 data.time_out = md->time_out;
483 data.retry_count = md->retry_count;
484 data.uid = md->uid;
485 data.gid = md->gid;
486 data.file_mode = md->file_mode;
487 data.dir_mode = md->dir_mode;
488 data.info_fd = -1;
489 memcpy(data.mounted_vol, md->mounted_vol,
490 NCP_VOLNAME_LEN+1);
491 }
492 break;
493 case NCP_MOUNT_VERSION_V4:
494 {
495 struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
496
497 data.flags = md->flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498 data.mounted_uid = md->mounted_uid;
Eric W. Biederman21542272006-12-13 00:35:11 -0800499 data.wdog_pid = find_get_pid(md->wdog_pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 data.ncp_fd = md->ncp_fd;
501 data.time_out = md->time_out;
502 data.retry_count = md->retry_count;
503 data.uid = md->uid;
504 data.gid = md->gid;
505 data.file_mode = md->file_mode;
506 data.dir_mode = md->dir_mode;
507 data.info_fd = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 }
509 break;
510 default:
511 error = -ECHRNG;
512 if (memcmp(raw_data, "vers", 4) == 0) {
513 error = ncp_parse_options(&data, raw_data);
514 }
515 if (error)
516 goto out;
517 break;
518 }
519 error = -EBADF;
520 ncp_filp = fget(data.ncp_fd);
521 if (!ncp_filp)
522 goto out;
523 error = -ENOTSOCK;
Josef Sipek92e5bae2006-12-08 02:37:22 -0800524 sock_inode = ncp_filp->f_path.dentry->d_inode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 if (!S_ISSOCK(sock_inode->i_mode))
526 goto out_fput;
527 sock = SOCKET_I(sock_inode);
528 if (!sock)
529 goto out_fput;
530
531 if (sock->type == SOCK_STREAM)
532 default_bufsize = 0xF000;
533 else
534 default_bufsize = 1024;
535
536 sb->s_flags |= MS_NODIRATIME; /* probably even noatime */
537 sb->s_maxbytes = 0xFFFFFFFFU;
538 sb->s_blocksize = 1024; /* Eh... Is this correct? */
539 sb->s_blocksize_bits = 10;
540 sb->s_magic = NCP_SUPER_MAGIC;
541 sb->s_op = &ncp_sops;
Al Viro0378c402011-01-12 17:25:03 -0500542 sb->s_d_op = &ncp_dentry_operations;
Jens Axboef1970c72010-04-22 12:31:11 +0200543 sb->s_bdi = &server->bdi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
545 server = NCP_SBP(sb);
546 memset(server, 0, sizeof(*server));
547
Jens Axboef1970c72010-04-22 12:31:11 +0200548 error = bdi_setup_and_register(&server->bdi, "ncpfs", BDI_CAP_MAP_COPY);
549 if (error)
Djalal Harouni759c3612011-12-13 02:47:29 +0100550 goto out_fput;
Jens Axboef1970c72010-04-22 12:31:11 +0200551
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 server->ncp_filp = ncp_filp;
553 server->ncp_sock = sock;
554
555 if (data.info_fd != -1) {
556 struct socket *info_sock;
557
558 error = -EBADF;
559 server->info_filp = fget(data.info_fd);
560 if (!server->info_filp)
Djalal Harouni759c3612011-12-13 02:47:29 +0100561 goto out_bdi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 error = -ENOTSOCK;
Josef Sipek92e5bae2006-12-08 02:37:22 -0800563 sock_inode = server->info_filp->f_path.dentry->d_inode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 if (!S_ISSOCK(sock_inode->i_mode))
565 goto out_fput2;
566 info_sock = SOCKET_I(sock_inode);
567 if (!info_sock)
568 goto out_fput2;
569 error = -EBADFD;
570 if (info_sock->type != SOCK_STREAM)
571 goto out_fput2;
572 server->info_sock = info_sock;
573 }
574
575/* server->lock = 0; */
Ingo Molnar8e3f9042006-03-23 03:00:43 -0800576 mutex_init(&server->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 server->packet = NULL;
578/* server->buffer_size = 0; */
579/* server->conn_status = 0; */
580/* server->root_dentry = NULL; */
581/* server->root_setuped = 0; */
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200582 mutex_init(&server->root_setup_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583#ifdef CONFIG_NCPFS_PACKET_SIGNING
584/* server->sign_wanted = 0; */
585/* server->sign_active = 0; */
586#endif
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200587 init_rwsem(&server->auth_rwsem);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 server->auth.auth_type = NCP_AUTH_NONE;
589/* server->auth.object_name_len = 0; */
590/* server->auth.object_name = NULL; */
591/* server->auth.object_type = 0; */
592/* server->priv.len = 0; */
593/* server->priv.data = NULL; */
594
595 server->m = data;
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300596 /* Although anything producing this is buggy, it happens
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 now because of PATH_MAX changes.. */
598 if (server->m.time_out < 1) {
599 server->m.time_out = 10;
600 printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
601 }
602 server->m.time_out = server->m.time_out * HZ / 100;
603 server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
604 server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;
605
606#ifdef CONFIG_NCPFS_NLS
607 /* load the default NLS charsets */
608 server->nls_vol = load_nls_default();
609 server->nls_io = load_nls_default();
610#endif /* CONFIG_NCPFS_NLS */
611
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200612 atomic_set(&server->dentry_ttl, 0); /* no caching */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613
614 INIT_LIST_HEAD(&server->tx.requests);
Ingo Molnar8e3f9042006-03-23 03:00:43 -0800615 mutex_init(&server->rcv.creq_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616 server->tx.creq = NULL;
617 server->rcv.creq = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
619 init_timer(&server->timeout_tm);
620#undef NCP_PACKET_SIZE
621#define NCP_PACKET_SIZE 131072
622 error = -ENOMEM;
623 server->packet_size = NCP_PACKET_SIZE;
624 server->packet = vmalloc(NCP_PACKET_SIZE);
625 if (server->packet == NULL)
626 goto out_nls;
Pierre Ossmanc5f93cf2007-02-19 11:34:43 +0100627 server->txbuf = vmalloc(NCP_PACKET_SIZE);
628 if (server->txbuf == NULL)
629 goto out_packet;
630 server->rxbuf = vmalloc(NCP_PACKET_SIZE);
631 if (server->rxbuf == NULL)
632 goto out_txbuf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633
Petr Vandrovec2a4df5d2010-09-29 14:39:11 +0200634 lock_sock(sock->sk);
635 server->data_ready = sock->sk->sk_data_ready;
636 server->write_space = sock->sk->sk_write_space;
637 server->error_report = sock->sk->sk_error_report;
638 sock->sk->sk_user_data = server;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 sock->sk->sk_data_ready = ncp_tcp_data_ready;
640 sock->sk->sk_error_report = ncp_tcp_error_report;
641 if (sock->type == SOCK_STREAM) {
642 server->rcv.ptr = (unsigned char*)&server->rcv.buf;
643 server->rcv.len = 10;
644 server->rcv.state = 0;
David Howellsc4028952006-11-22 14:57:56 +0000645 INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
646 INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 sock->sk->sk_write_space = ncp_tcp_write_space;
648 } else {
David Howellsc4028952006-11-22 14:57:56 +0000649 INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
650 INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 server->timeout_tm.data = (unsigned long)server;
652 server->timeout_tm.function = ncpdgram_timeout_call;
653 }
Petr Vandrovec2a4df5d2010-09-29 14:39:11 +0200654 release_sock(sock->sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
656 ncp_lock_server(server);
657 error = ncp_connect(server);
658 ncp_unlock_server(server);
659 if (error < 0)
Pierre Ossmanc5f93cf2007-02-19 11:34:43 +0100660 goto out_rxbuf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661 DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
662
663 error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */
664#ifdef CONFIG_NCPFS_PACKET_SIGNING
665 if (ncp_negotiate_size_and_options(server, default_bufsize,
666 NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
667 {
668 if (options != NCP_DEFAULT_OPTIONS)
669 {
670 if (ncp_negotiate_size_and_options(server,
671 default_bufsize,
672 options & 2,
673 &(server->buffer_size), &options) != 0)
674
675 {
676 goto out_disconnect;
677 }
678 }
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200679 ncp_lock_server(server);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 if (options & 2)
681 server->sign_wanted = 1;
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200682 ncp_unlock_server(server);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683 }
684 else
685#endif /* CONFIG_NCPFS_PACKET_SIGNING */
686 if (ncp_negotiate_buffersize(server, default_bufsize,
687 &(server->buffer_size)) != 0)
688 goto out_disconnect;
689 DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
690
691 memset(&finfo, 0, sizeof(finfo));
692 finfo.i.attributes = aDIR;
693 finfo.i.dataStreamSize = 0; /* ignored */
694 finfo.i.dirEntNum = 0;
695 finfo.i.DosDirNum = 0;
696#ifdef CONFIG_NCPFS_SMALLDOS
697 finfo.i.NSCreator = NW_NS_DOS;
698#endif
699 finfo.volume = NCP_NUMBER_OF_VOLUMES;
700 /* set dates of mountpoint to Jan 1, 1986; 00:00 */
701 finfo.i.creationTime = finfo.i.modifyTime
702 = cpu_to_le16(0x0000);
703 finfo.i.creationDate = finfo.i.modifyDate
704 = finfo.i.lastAccessDate
705 = cpu_to_le16(0x0C21);
706 finfo.i.nameLen = 0;
707 finfo.i.entryName[0] = '\0';
708
709 finfo.opened = 0;
710 finfo.ino = 2; /* tradition */
711
712 server->name_space[finfo.volume] = NW_NS_DOS;
713
714 error = -ENOMEM;
715 root_inode = ncp_iget(sb, &finfo);
716 if (!root_inode)
717 goto out_disconnect;
718 DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
719 sb->s_root = d_alloc_root(root_inode);
720 if (!sb->s_root)
721 goto out_no_root;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722 return 0;
723
724out_no_root:
725 iput(root_inode);
726out_disconnect:
727 ncp_lock_server(server);
728 ncp_disconnect(server);
729 ncp_unlock_server(server);
Pierre Ossmanc5f93cf2007-02-19 11:34:43 +0100730out_rxbuf:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731 ncp_stop_tasks(server);
Pierre Ossmanc5f93cf2007-02-19 11:34:43 +0100732 vfree(server->rxbuf);
733out_txbuf:
734 vfree(server->txbuf);
735out_packet:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 vfree(server->packet);
737out_nls:
738#ifdef CONFIG_NCPFS_NLS
739 unload_nls(server->nls_io);
740 unload_nls(server->nls_vol);
741#endif
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200742 mutex_destroy(&server->rcv.creq_mutex);
743 mutex_destroy(&server->root_setup_lock);
744 mutex_destroy(&server->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745out_fput2:
746 if (server->info_filp)
747 fput(server->info_filp);
Jens Axboef1970c72010-04-22 12:31:11 +0200748out_bdi:
Djalal Harouni759c3612011-12-13 02:47:29 +0100749 bdi_destroy(&server->bdi);
750out_fput:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751 /* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
752 *
Matthew Whitworthe956b4b2010-06-27 14:34:30 +0100753 * The previously used put_filp(ncp_filp); was bogus, since
754 * it doesn't perform proper unlocking.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 */
756 fput(ncp_filp);
757out:
Eric W. Biederman1de24122006-12-13 00:35:13 -0800758 put_pid(data.wdog_pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759 sb->s_fs_info = NULL;
760 kfree(server);
761 return error;
762}
763
764static void ncp_put_super(struct super_block *sb)
765{
766 struct ncp_server *server = NCP_SBP(sb);
767
768 ncp_lock_server(server);
769 ncp_disconnect(server);
770 ncp_unlock_server(server);
771
772 ncp_stop_tasks(server);
773
774#ifdef CONFIG_NCPFS_NLS
775 /* unload the NLS charsets */
Thomas Gleixner6d729e42009-08-16 21:05:08 +0000776 unload_nls(server->nls_vol);
777 unload_nls(server->nls_io);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778#endif /* CONFIG_NCPFS_NLS */
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200779 mutex_destroy(&server->rcv.creq_mutex);
780 mutex_destroy(&server->root_setup_lock);
781 mutex_destroy(&server->mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700782
783 if (server->info_filp)
784 fput(server->info_filp);
785 fput(server->ncp_filp);
Eric W. Biederman21542272006-12-13 00:35:11 -0800786 kill_pid(server->m.wdog_pid, SIGTERM, 1);
787 put_pid(server->m.wdog_pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788
Jens Axboef1970c72010-04-22 12:31:11 +0200789 bdi_destroy(&server->bdi);
Pekka Enberg44db77f2006-01-14 13:21:12 -0800790 kfree(server->priv.data);
791 kfree(server->auth.object_name);
Pierre Ossmanc5f93cf2007-02-19 11:34:43 +0100792 vfree(server->rxbuf);
793 vfree(server->txbuf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794 vfree(server->packet);
795 sb->s_fs_info = NULL;
796 kfree(server);
797}
798
David Howells726c3342006-06-23 02:02:58 -0700799static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800{
801 struct dentry* d;
802 struct inode* i;
803 struct ncp_inode_info* ni;
804 struct ncp_server* s;
805 struct ncp_volume_info vi;
David Howells726c3342006-06-23 02:02:58 -0700806 struct super_block *sb = dentry->d_sb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700807 int err;
808 __u8 dh;
809
810 d = sb->s_root;
811 if (!d) {
812 goto dflt;
813 }
814 i = d->d_inode;
815 if (!i) {
816 goto dflt;
817 }
818 ni = NCP_FINFO(i);
819 if (!ni) {
820 goto dflt;
821 }
822 s = NCP_SBP(sb);
823 if (!s) {
824 goto dflt;
825 }
826 if (!s->m.mounted_vol[0]) {
827 goto dflt;
828 }
829
830 err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
831 if (err) {
832 goto dflt;
833 }
834 err = ncp_get_directory_info(s, dh, &vi);
835 ncp_dirhandle_free(s, dh);
836 if (err) {
837 goto dflt;
838 }
839 buf->f_type = NCP_SUPER_MAGIC;
840 buf->f_bsize = vi.sectors_per_block * 512;
841 buf->f_blocks = vi.total_blocks;
842 buf->f_bfree = vi.free_blocks;
843 buf->f_bavail = vi.free_blocks;
844 buf->f_files = vi.total_dir_entries;
845 buf->f_ffree = vi.available_dir_entries;
846 buf->f_namelen = 12;
847 return 0;
848
849 /* We cannot say how much disk space is left on a mounted
850 NetWare Server, because free space is distributed over
851 volumes, and the current user might have disk quotas. So
852 free space is not that simple to determine. Our decision
853 here is to err conservatively. */
854
855dflt:;
856 buf->f_type = NCP_SUPER_MAGIC;
857 buf->f_bsize = NCP_BLOCK_SIZE;
858 buf->f_blocks = 0;
859 buf->f_bfree = 0;
860 buf->f_bavail = 0;
861 buf->f_namelen = 12;
862 return 0;
863}
864
865int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
866{
867 struct inode *inode = dentry->d_inode;
868 int result = 0;
869 __le32 info_mask;
870 struct nw_modify_dos_info info;
871 struct ncp_server *server;
872
873 result = -EIO;
874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 server = NCP_SERVER(inode);
Petr Vandrovec2e54eb92010-09-27 01:47:33 +0200876 if (!server) /* How this could happen? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877 goto out;
878
879 /* ageing the dentry to force validation */
880 ncp_age_dentry(server, dentry);
881
882 result = inode_change_ok(inode, attr);
883 if (result < 0)
884 goto out;
885
886 result = -EPERM;
887 if (((attr->ia_valid & ATTR_UID) &&
888 (attr->ia_uid != server->m.uid)))
889 goto out;
890
891 if (((attr->ia_valid & ATTR_GID) &&
892 (attr->ia_gid != server->m.gid)))
893 goto out;
894
895 if (((attr->ia_valid & ATTR_MODE) &&
896 (attr->ia_mode &
897 ~(S_IFREG | S_IFDIR | S_IRWXUGO))))
898 goto out;
899
900 info_mask = 0;
901 memset(&info, 0, sizeof(info));
902
903#if 1
904 if ((attr->ia_valid & ATTR_MODE) != 0)
905 {
906 umode_t newmode = attr->ia_mode;
907
908 info_mask |= DM_ATTRIBUTES;
909
910 if (S_ISDIR(inode->i_mode)) {
911 newmode &= server->m.dir_mode;
912 } else {
913#ifdef CONFIG_NCPFS_EXTRAS
914 if (server->m.flags & NCP_MOUNT_EXTRAS) {
915 /* any non-default execute bit set */
916 if (newmode & ~server->m.file_mode & S_IXUGO)
917 info.attributes |= aSHARED | aSYSTEM;
918 /* read for group/world and not in default file_mode */
919 else if (newmode & ~server->m.file_mode & S_IRUGO)
920 info.attributes |= aSHARED;
921 } else
922#endif
923 newmode &= server->m.file_mode;
924 }
925 if (newmode & S_IWUGO)
926 info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
927 else
928 info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
929
930#ifdef CONFIG_NCPFS_NFS_NS
931 if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
932 result = ncp_modify_nfs_info(server,
933 NCP_FINFO(inode)->volNumber,
934 NCP_FINFO(inode)->dirEntNum,
935 attr->ia_mode, 0);
936 if (result != 0)
937 goto out;
938 info.attributes &= ~(aSHARED | aSYSTEM);
939 {
940 /* mark partial success */
941 struct iattr tmpattr;
942
943 tmpattr.ia_valid = ATTR_MODE;
944 tmpattr.ia_mode = attr->ia_mode;
945
Christoph Hellwig10257742010-06-04 11:30:02 +0200946 setattr_copy(inode, &tmpattr);
947 mark_inode_dirty(inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948 }
949 }
950#endif
951 }
952#endif
953
954 /* Do SIZE before attributes, otherwise mtime together with size does not work...
955 */
956 if ((attr->ia_valid & ATTR_SIZE) != 0) {
957 int written;
958
959 DPRINTK("ncpfs: trying to change size to %ld\n",
960 attr->ia_size);
961
962 if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
963 result = -EACCES;
964 goto out;
965 }
966 ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
967 attr->ia_size, 0, "", &written);
968
969 /* According to ndir, the changes only take effect after
970 closing the file */
971 ncp_inode_close(inode);
972 result = ncp_make_closed(inode);
973 if (result)
974 goto out;
Christoph Hellwig10257742010-06-04 11:30:02 +0200975
976 if (attr->ia_size != i_size_read(inode)) {
977 result = vmtruncate(inode, attr->ia_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978 if (result)
979 goto out;
Christoph Hellwig10257742010-06-04 11:30:02 +0200980 mark_inode_dirty(inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 }
982 }
983 if ((attr->ia_valid & ATTR_CTIME) != 0) {
984 info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
985 ncp_date_unix2dos(attr->ia_ctime.tv_sec,
986 &info.creationTime, &info.creationDate);
987 }
988 if ((attr->ia_valid & ATTR_MTIME) != 0) {
989 info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
990 ncp_date_unix2dos(attr->ia_mtime.tv_sec,
991 &info.modifyTime, &info.modifyDate);
992 }
993 if ((attr->ia_valid & ATTR_ATIME) != 0) {
994 __le16 dummy;
995 info_mask |= (DM_LAST_ACCESS_DATE);
996 ncp_date_unix2dos(attr->ia_atime.tv_sec,
997 &dummy, &info.lastAccessDate);
998 }
999 if (info_mask != 0) {
1000 result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
1001 inode, info_mask, &info);
1002 if (result != 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003 if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
1004 /* NetWare seems not to allow this. I
1005 do not know why. So, just tell the
1006 user everything went fine. This is
1007 a terrible hack, but I do not know
1008 how to do this correctly. */
1009 result = 0;
1010 } else
1011 goto out;
1012 }
1013#ifdef CONFIG_NCPFS_STRONG
1014 if ((!result) && (info_mask & DM_ATTRIBUTES))
1015 NCP_FINFO(inode)->nwattr = info.attributes;
1016#endif
1017 }
Christoph Hellwig10257742010-06-04 11:30:02 +02001018 if (result)
1019 goto out;
1020
1021 setattr_copy(inode, attr);
1022 mark_inode_dirty(inode);
1023
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024out:
Petr Vandrovec2e54eb92010-09-27 01:47:33 +02001025 if (result > 0)
1026 result = -EACCES;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 return result;
1028}
1029
Al Viro3c26ff62010-07-25 11:46:36 +04001030static struct dentry *ncp_mount(struct file_system_type *fs_type,
1031 int flags, const char *dev_name, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032{
Al Viro3c26ff62010-07-25 11:46:36 +04001033 return mount_nodev(fs_type, flags, data, ncp_fill_super);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034}
1035
1036static struct file_system_type ncp_fs_type = {
1037 .owner = THIS_MODULE,
1038 .name = "ncpfs",
Al Viro3c26ff62010-07-25 11:46:36 +04001039 .mount = ncp_mount,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 .kill_sb = kill_anon_super,
Miklos Szeredi564cd132008-02-08 04:21:46 -08001041 .fs_flags = FS_BINARY_MOUNTDATA,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001042};
1043
1044static int __init init_ncp_fs(void)
1045{
1046 int err;
Robert P. J. Day7c28cba2008-02-06 01:37:09 -08001047 DPRINTK("ncpfs: init_ncp_fs called\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001048
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 err = init_inodecache();
1050 if (err)
1051 goto out1;
1052 err = register_filesystem(&ncp_fs_type);
1053 if (err)
1054 goto out;
1055 return 0;
1056out:
1057 destroy_inodecache();
1058out1:
1059 return err;
1060}
1061
1062static void __exit exit_ncp_fs(void)
1063{
Robert P. J. Day7c28cba2008-02-06 01:37:09 -08001064 DPRINTK("ncpfs: exit_ncp_fs called\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065 unregister_filesystem(&ncp_fs_type);
1066 destroy_inodecache();
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067}
1068
1069module_init(init_ncp_fs)
1070module_exit(exit_ncp_fs)
1071MODULE_LICENSE("GPL");