isofs: implement dmode option
Implement dmode option for iso9660 filesystem to allow setting of access
rights for directories on the filesystem.
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: "Ilya N. Golubev" <gin@mo.msk.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 875d37f..c3240b4 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -144,7 +144,8 @@
char nocompress;
unsigned char check;
unsigned int blocksize;
- mode_t mode;
+ mode_t fmode;
+ mode_t dmode;
gid_t gid;
uid_t uid;
char *iocharset;
@@ -305,7 +306,7 @@
Opt_block, Opt_check_r, Opt_check_s, Opt_cruft, Opt_gid, Opt_ignore,
Opt_iocharset, Opt_map_a, Opt_map_n, Opt_map_o, Opt_mode, Opt_nojoliet,
Opt_norock, Opt_sb, Opt_session, Opt_uid, Opt_unhide, Opt_utf8, Opt_err,
- Opt_nocompress, Opt_hide, Opt_showassoc,
+ Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode,
};
static match_table_t tokens = {
@@ -332,6 +333,7 @@
{Opt_uid, "uid=%u"},
{Opt_gid, "gid=%u"},
{Opt_mode, "mode=%u"},
+ {Opt_dmode, "dmode=%u"},
{Opt_block, "block=%u"},
{Opt_ignore, "conv=binary"},
{Opt_ignore, "conv=b"},
@@ -359,7 +361,7 @@
popt->check = 'u'; /* unset */
popt->nocompress = 0;
popt->blocksize = 1024;
- popt->mode = S_IRUGO | S_IXUGO; /*
+ popt->fmode = popt->dmode = S_IRUGO | S_IXUGO; /*
* r-x for all. The disc could
* be shared with DOS machines so
* virtually anything could be
@@ -451,7 +453,12 @@
case Opt_mode:
if (match_int(&args[0], &option))
return 0;
- popt->mode = option;
+ popt->fmode = option;
+ break;
+ case Opt_dmode:
+ if (match_int(&args[0], &option))
+ return 0;
+ popt->dmode = option;
break;
case Opt_block:
if (match_int(&args[0], &option))
@@ -801,7 +808,8 @@
* on the disk as suid, so we merely allow them to set the default
* permissions.
*/
- sbi->s_mode = opt.mode & 0777;
+ sbi->s_fmode = opt.fmode & 0777;
+ sbi->s_dmode = opt.dmode & 0777;
/*
* Read the root inode, which _may_ result in changing
@@ -1248,7 +1256,7 @@
ei->i_file_format = isofs_file_normal;
if (de->flags[-high_sierra] & 2) {
- inode->i_mode = S_IRUGO | S_IXUGO | S_IFDIR;
+ inode->i_mode = sbi->s_dmode | S_IFDIR;
inode->i_nlink = 1; /*
* Set to 1. We know there are 2, but
* the find utility tries to optimize
@@ -1258,9 +1266,8 @@
*/
} else {
/* Everybody gets to read the file. */
- inode->i_mode = sbi->s_mode;
+ inode->i_mode = sbi->s_fmode | S_IFREG;
inode->i_nlink = 1;
- inode->i_mode |= S_IFREG;
}
inode->i_uid = sbi->s_uid;
inode->i_gid = sbi->s_gid;
