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-rw-r--r--fs/isofs/inode.c50
1 files changed, 38 insertions, 12 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 068b34b5a10..8e6fd41eec1 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -148,6 +148,7 @@ struct iso9660_options{
char hide;
char showassoc;
char nocompress;
+ char overriderockperm;
unsigned char check;
unsigned int blocksize;
mode_t fmode;
@@ -312,7 +313,7 @@ enum {
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_dmode,
+ Opt_nocompress, Opt_hide, Opt_showassoc, Opt_dmode, Opt_overriderockperm,
};
static const match_table_t tokens = {
@@ -340,6 +341,7 @@ static const match_table_t tokens = {
{Opt_gid, "gid=%u"},
{Opt_mode, "mode=%u"},
{Opt_dmode, "dmode=%u"},
+ {Opt_overriderockperm, "overriderockperm"},
{Opt_block, "block=%u"},
{Opt_ignore, "conv=binary"},
{Opt_ignore, "conv=b"},
@@ -367,16 +369,12 @@ static int parse_options(char *options, struct iso9660_options *popt)
popt->check = 'u'; /* unset */
popt->nocompress = 0;
popt->blocksize = 1024;
- 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
- * a valid executable.
- */
+ popt->fmode = popt->dmode = ISOFS_INVALID_MODE;
popt->gid = 0;
popt->uid = 0;
popt->iocharset = NULL;
popt->utf8 = 0;
+ popt->overriderockperm = 0;
popt->session=-1;
popt->sbsector=-1;
if (!options)
@@ -466,6 +464,9 @@ static int parse_options(char *options, struct iso9660_options *popt)
return 0;
popt->dmode = option;
break;
+ case Opt_overriderockperm:
+ popt->overriderockperm = 1;
+ break;
case Opt_block:
if (match_int(&args[0], &option))
return 0;
@@ -811,13 +812,20 @@ root_found:
sbi->s_gid = opt.gid;
sbi->s_utf8 = opt.utf8;
sbi->s_nocompress = opt.nocompress;
+ sbi->s_overriderockperm = opt.overriderockperm;
/*
* It would be incredibly stupid to allow people to mark every file
* on the disk as suid, so we merely allow them to set the default
* permissions.
*/
- sbi->s_fmode = opt.fmode & 0777;
- sbi->s_dmode = opt.dmode & 0777;
+ if (opt.fmode != ISOFS_INVALID_MODE)
+ sbi->s_fmode = opt.fmode & 0777;
+ else
+ sbi->s_fmode = ISOFS_INVALID_MODE;
+ if (opt.dmode != ISOFS_INVALID_MODE)
+ sbi->s_dmode = opt.dmode & 0777;
+ else
+ sbi->s_dmode = ISOFS_INVALID_MODE;
/*
* Read the root inode, which _may_ result in changing
@@ -1261,7 +1269,10 @@ static int isofs_read_inode(struct inode *inode)
ei->i_file_format = isofs_file_normal;
if (de->flags[-high_sierra] & 2) {
- inode->i_mode = sbi->s_dmode | S_IFDIR;
+ if (sbi->s_dmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFDIR | sbi->s_dmode;
+ else
+ inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
inode->i_nlink = 1; /*
* Set to 1. We know there are 2, but
* the find utility tries to optimize
@@ -1270,8 +1281,16 @@ static int isofs_read_inode(struct inode *inode)
* do it the hard way.
*/
} else {
- /* Everybody gets to read the file. */
- inode->i_mode = sbi->s_fmode | S_IFREG;
+ if (sbi->s_fmode != ISOFS_INVALID_MODE) {
+ inode->i_mode = S_IFREG | sbi->s_fmode;
+ } else {
+ /*
+ * Set default permissions: r-x for all. The disc
+ * could be shared with DOS machines so virtually
+ * anything could be a valid executable.
+ */
+ inode->i_mode = S_IFREG | S_IRUGO | S_IXUGO;
+ }
inode->i_nlink = 1;
}
inode->i_uid = sbi->s_uid;
@@ -1349,6 +1368,13 @@ static int isofs_read_inode(struct inode *inode)
test_and_set_uid(&inode->i_uid, sbi->s_uid);
test_and_set_gid(&inode->i_gid, sbi->s_gid);
}
+ /* Now set final access rights if overriding rock ridge setting */
+ if (S_ISDIR(inode->i_mode) && sbi->s_overriderockperm &&
+ sbi->s_dmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFDIR | sbi->s_dmode;
+ if (S_ISREG(inode->i_mode) && sbi->s_overriderockperm &&
+ sbi->s_fmode != ISOFS_INVALID_MODE)
+ inode->i_mode = S_IFREG | sbi->s_fmode;
/* Install the inode operations vector */
if (S_ISREG(inode->i_mode)) {