new helper: security_sb_eat_lsm_opts()
combination of alloc_secdata(), security_sb_copy_data(),
security_sb_parse_opt_str() and free_secdata().
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/security/security.c b/security/security.c
index 3f50beb..02c656d 100644
--- a/security/security.c
+++ b/security/security.c
@@ -384,11 +384,20 @@
call_void_hook(sb_free_security, sb);
}
-int security_sb_copy_data(char *orig, char *copy)
+int security_sb_eat_lsm_opts(char *options, struct security_mnt_opts *opts)
{
- return call_int_hook(sb_copy_data, 0, orig, copy);
+ char *s = (char *)get_zeroed_page(GFP_KERNEL);
+ int err;
+
+ if (!s)
+ return -ENOMEM;
+ err = call_int_hook(sb_copy_data, 0, options, s);
+ if (!err)
+ err = call_int_hook(sb_parse_opts_str, 0, s, opts);
+ free_page((unsigned long)s);
+ return err;
}
-EXPORT_SYMBOL(security_sb_copy_data);
+EXPORT_SYMBOL(security_sb_eat_lsm_opts);
int security_sb_remount(struct super_block *sb,
struct security_mnt_opts *opts)