netdev - [PATCH] genetlink: add auto module loading

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20111228101958.2326b7cc@nehalam.linuxnetplumber.net>
Date:	Wed, 28 Dec 2011 10:19:58 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: [PATCH] genetlink: add auto module loading

When testing L2TP support, I discovered that the l2tp module is not autoloaded
as are other netlink interfaces. There is because of lack of hook in genetlink to call
request_module and load the module.

Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

--- a/net/netlink/genetlink.c	2011-12-24 11:13:44.373214171 -0800
+++ b/net/netlink/genetlink.c	2011-12-24 11:13:59.361360729 -0800
@@ -792,6 +792,15 @@ static int ctrl_getfamily(struct sk_buff
 
 		name = nla_data(info->attrs[CTRL_ATTR_FAMILY_NAME]);
 		res = genl_family_find_byname(name);
+#ifdef CONFIG_MODULES
+		if (res == NULL) {
+			genl_unlock();
+			request_module("net-pf-%d-proto-%d-type-%s",
+				       PF_NETLINK, NETLINK_GENERIC, name);
+			genl_lock();
+			res = genl_family_find_byname(name);
+		}
+#endif
 		err = -ENOENT;
 	}
 
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html