X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv6%2Freassembly.c;h=6ab957ec2dd6d4a64bee43cc20d754e7e85ca579;hb=925068dcdc746236264d1877d3d5df656e87882a;hp=130d6f6b6a6ef4c1ad1e7a31ff9732136500bcce;hpb=0002c630c4ee7a3c6b1d87e34bfd6ce9694b49be;p=linux-2.6

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 130d6f6b6a..6ab957ec2d 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -5,8 +5,6 @@
  *	Authors:
  *	Pedro Roque		<roque@di.fc.ul.pt>
  *
- *	$Id: reassembly.c,v 1.26 2001/03/07 22:00:57 davem Exp $
- *
  *	Based on: net/ipv4/ip_fragment.c
  *
  *	This program is free software; you can redistribute it and/or
@@ -247,6 +245,8 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
 	arg.id = id;
 	arg.src = src;
 	arg.dst = dst;
+
+	read_lock(&ip6_frags.lock);
 	hash = ip6qhashfn(id, src, dst);
 
 	q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
@@ -658,6 +658,10 @@ static struct ctl_table ip6_frags_ns_ctl_table[] = {
 		.proc_handler	= &proc_dointvec_jiffies,
 		.strategy	= &sysctl_jiffies,
 	},
+	{ }
+};
+
+static struct ctl_table ip6_frags_ctl_table[] = {
 	{
 		.ctl_name	= NET_IPV6_IP6FRAG_SECRET_INTERVAL,
 		.procname	= "ip6frag_secret_interval",
@@ -684,7 +688,6 @@ static int ip6_frags_ns_sysctl_register(struct net *net)
 		table[0].data = &net->ipv6.frags.high_thresh;
 		table[1].data = &net->ipv6.frags.low_thresh;
 		table[2].data = &net->ipv6.frags.timeout;
-		table[3].mode &= ~0222;
 	}
 
 	hdr = register_net_sysctl_table(net, net_ipv6_ctl_path, table);
@@ -709,6 +712,20 @@ static void ip6_frags_ns_sysctl_unregister(struct net *net)
 	unregister_net_sysctl_table(net->ipv6.sysctl.frags_hdr);
 	kfree(table);
 }
+
+static struct ctl_table_header *ip6_ctl_header;
+
+static int ip6_frags_sysctl_register(void)
+{
+	ip6_ctl_header = register_net_sysctl_rotable(net_ipv6_ctl_path,
+			ip6_frags_ctl_table);
+	return ip6_ctl_header == NULL ? -ENOMEM : 0;
+}
+
+static void ip6_frags_sysctl_unregister(void)
+{
+	unregister_net_sysctl_table(ip6_ctl_header);
+}
 #else
 static inline int ip6_frags_ns_sysctl_register(struct net *net)
 {
@@ -718,6 +735,15 @@ static inline int ip6_frags_ns_sysctl_register(struct net *net)
 static inline void ip6_frags_ns_sysctl_unregister(struct net *net)
 {
 }
+
+static inline int ip6_frags_sysctl_register(void)
+{
+	return 0;
+}
+
+static inline void ip6_frags_sysctl_unregister(void)
+{
+}
 #endif
 
 static int ipv6_frags_init_net(struct net *net)
@@ -750,6 +776,10 @@ int __init ipv6_frag_init(void)
 	if (ret)
 		goto out;
 
+	ret = ip6_frags_sysctl_register();
+	if (ret)
+		goto err_sysctl;
+
 	ret = register_pernet_subsys(&ip6_frags_ops);
 	if (ret)
 		goto err_pernet;
@@ -767,6 +797,8 @@ out:
 	return ret;
 
 err_pernet:
+	ip6_frags_sysctl_unregister();
+err_sysctl:
 	inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
 	goto out;
 }
@@ -774,6 +806,7 @@ err_pernet:
 void ipv6_frag_exit(void)
 {
 	inet_frags_fini(&ip6_frags);
+	ip6_frags_sysctl_unregister();
 	unregister_pernet_subsys(&ip6_frags_ops);
 	inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
 }