commit 0009ae1f50fb10178b5f54216ce567f3cb1d7267
author YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Sat Mar 22 17:50:59 2008 +0900
committer YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Thu Apr 03 10:05:59 2008 +0900
tree 4e4f2cce15b2978dd6ef0ee52f6c83615cf7f511
parent 3fcfa12904e83cc291cf2b7b05ff2530068920a4

[IPV6] SIT: Disallow 0.0.0.0 in PRL and Flush PRL if given for DEL.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

net/ipv6/sit.c

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index ee0cc28..84c1ed2 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -215,6 +215,9 @@
 	struct ip_tunnel_prl_entry *p;
 	int err = 0;
 
+	if (a->addr == htonl(INADDR_ANY))
+		return -EINVAL;
+
 	write_lock(&ipip6_lock);
 
 	for (p = t->prl; p; p = p->next) {
@@ -254,7 +257,7 @@
 
 	write_lock(&ipip6_lock);
 
-	if (a) {
+	if (a && a->addr != htonl(INADDR_ANY)) {
 		for (p = &t->prl; *p; p = &(*p)->next) {
 			if ((*p)->entry.addr == a->addr) {
 				x = *p;