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Commit 5a533682 authored by Miklos Szeredi's avatar Miklos Szeredi Committed by Linus Torvalds
Browse files

[PATCH] fuse: stricter mount option checking 



Check for the presence of all mandatory mount options.

Signed-off-by: default avatarMiklos Szeredi <miklos@szeredi.hu>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 87729a55

fs/fuse/inode.c

+11 −2
Original line number Diff line number Diff line
@@ -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;