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authorAl Viro <viro@zeniv.linux.org.uk>2018-11-17 12:09:18 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2018-12-21 11:46:00 -0500
commitf5c0c26d9008b355babb6d16f3d7c4de3bada0e7 (patch)
tree27370bd41579aa94dd36056956554e922a4455f9 /security
parentc039bc3c2498724946304a8f964244a9b6af1043 (diff)
downloadlinux-f5c0c26d9008b355babb6d16f3d7c4de3bada0e7.tar.gz
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>
Diffstat (limited to 'security')
-rw-r--r--security/security.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/security/security.c b/security/security.c
index 3f50beb30fb1..02c656dd5c0c 100644
--- a/security/security.c
+++ b/security/security.c
@@ -384,11 +384,20 @@ void security_sb_free(struct super_block *sb)
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)