aboutsummaryrefslogtreecommitdiff
path: root/fs/fuse
diff options
context:
space:
mode:
authorMiklos Szeredi <miklos@szeredi.hu>2005-09-09 13:10:34 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-09 14:03:46 -0700
commit5a53368277efa2d80dd2206dddc1f4b19ef0c32a (patch)
treedecdf01b0019bf3d0f04d3426b8d6e2d18641eb3 /fs/fuse
parent87729a5514e855ce2c71e3e33833a106b8caf2ae (diff)
downloadlinux-stericsson-5a53368277efa2d80dd2206dddc1f4b19ef0c32a.tar.gz
[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')
-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 {
unsigned rootmode;
unsigned user_id;
unsigned group_id;
+ unsigned fd_present : 1;
+ unsigned rootmode_present : 1;
+ unsigned user_id_present : 1;
+ unsigned group_id_present : 1;
unsigned flags;
unsigned max_read;
};
@@ -274,7 +278,6 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
{
char *p;
memset(d, 0, sizeof(struct fuse_mount_data));
- d->fd = -1;
d->max_read = ~0;
while ((p = strsep(&opt, ",")) != NULL) {
@@ -290,24 +293,28 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
if (match_int(&args[0], &value))
return 0;
d->fd = value;
+ d->fd_present = 1;
break;
case OPT_ROOTMODE:
if (match_octal(&args[0], &value))
return 0;
d->rootmode = value;
+ d->rootmode_present = 1;
break;
case OPT_USER_ID:
if (match_int(&args[0], &value))
return 0;
d->user_id = value;
+ d->user_id_present = 1;
break;
case OPT_GROUP_ID:
if (match_int(&args[0], &value))
return 0;
d->group_id = value;
+ d->group_id_present = 1;
break;
case OPT_DEFAULT_PERMISSIONS:
@@ -332,7 +339,9 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
return 0;
}
}
- if (d->fd == -1)
+
+ if (!d->fd_present || !d->rootmode_present ||
+ !d->user_id_present || !d->group_id_present)
return 0;
return 1;