TOMOYO: Print URL information before panic().

Configuration files for TOMOYO 2.3 are not compatible with TOMOYO 2.2.
But current panic() message is too unfriendly and is confusing users.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index e0a1059aaf3a..7556315c1978 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -2053,13 +2053,22 @@ void tomoyo_check_profile(void)
                 const u8 profile = domain->profile;
                 if (tomoyo_profile_ptr[profile])
                         continue;
+                printk(KERN_ERR "You need to define profile %u before using it.\n",
+                       profile);
+                printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.3/ "
+                       "for more information.\n");
                 panic("Profile %u (used by '%s') not defined.\n",
                       profile, domain->domainname->name);
         }
         tomoyo_read_unlock(idx);
-        if (tomoyo_profile_version != 20090903)
+        if (tomoyo_profile_version != 20090903) {
+                printk(KERN_ERR "You need to install userland programs for "
+                       "TOMOYO 2.3 and initialize policy configuration.\n");
+                printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.3/ "
+                       "for more information.\n");
                 panic("Profile version %u is not supported.\n",
                       tomoyo_profile_version);
+        }
         printk(KERN_INFO "TOMOYO: 2.3.0\n");
         printk(KERN_INFO "Mandatory Access Control activated.\n");
 }