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authorMiklos Szeredi <miklos@szeredi.hu>2005-09-09 16:10:34 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-09 17:03:46 -0400
commit5a53368277efa2d80dd2206dddc1f4b19ef0c32a (patch)
treedecdf01b0019bf3d0f04d3426b8d6e2d18641eb3 /fs/fuse/inode.c
parent87729a5514e855ce2c71e3e33833a106b8caf2ae (diff)
[PATCH] fuse: stricter mount option checking
Check for the presence of all mandatory mount options. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/fuse/inode.c')
-rw-r--r--fs/fuse/inode.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index c8e54c0658f1..298c1d4c1534 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -32,6 +32,10 @@ struct fuse_mount_data {
32 unsigned rootmode; 32 unsigned rootmode;
33 unsigned user_id; 33 unsigned user_id;
34 unsigned group_id; 34 unsigned group_id;
35 unsigned fd_present : 1;
36 unsigned rootmode_present : 1;
37 unsigned user_id_present : 1;
38 unsigned group_id_present : 1;
35 unsigned flags; 39 unsigned flags;
36 unsigned max_read; 40 unsigned max_read;
37}; 41};
@@ -274,7 +278,6 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
274{ 278{
275 char *p; 279 char *p;
276 memset(d, 0, sizeof(struct fuse_mount_data)); 280 memset(d, 0, sizeof(struct fuse_mount_data));
277 d->fd = -1;
278 d->max_read = ~0; 281 d->max_read = ~0;
279 282
280 while ((p = strsep(&opt, ",")) != NULL) { 283 while ((p = strsep(&opt, ",")) != NULL) {
@@ -290,24 +293,28 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
290 if (match_int(&args[0], &value)) 293 if (match_int(&args[0], &value))
291 return 0; 294 return 0;
292 d->fd = value; 295 d->fd = value;
296 d->fd_present = 1;
293 break; 297 break;
294 298
295 case OPT_ROOTMODE: 299 case OPT_ROOTMODE:
296 if (match_octal(&args[0], &value)) 300 if (match_octal(&args[0], &value))
297 return 0; 301 return 0;
298 d->rootmode = value; 302 d->rootmode = value;
303 d->rootmode_present = 1;
299 break; 304 break;
300 305
301 case OPT_USER_ID: 306 case OPT_USER_ID:
302 if (match_int(&args[0], &value)) 307 if (match_int(&args[0], &value))
303 return 0; 308 return 0;
304 d->user_id = value; 309 d->user_id = value;
310 d->user_id_present = 1;
305 break; 311 break;
306 312
307 case OPT_GROUP_ID: 313 case OPT_GROUP_ID:
308 if (match_int(&args[0], &value)) 314 if (match_int(&args[0], &value))
309 return 0; 315 return 0;
310 d->group_id = value; 316 d->group_id = value;
317 d->group_id_present = 1;
311 break; 318 break;
312 319
313 case OPT_DEFAULT_PERMISSIONS: 320 case OPT_DEFAULT_PERMISSIONS:
@@ -332,7 +339,9 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
332 return 0; 339 return 0;
333 } 340 }
334 } 341 }
335 if (d->fd == -1) 342
343 if (!d->fd_present || !d->rootmode_present ||
344 !d->user_id_present || !d->group_id_present)
336 return 0; 345 return 0;
337 346
338 return 1; 347 return 1;