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authorYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-03-22 17:50:59 +0900
committerYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>2008-04-03 10:05:59 +0900
commit0009ae1f50fb10178b5f54216ce567f3cb1d7267 (patch)
tree4e4f2cce15b2978dd6ef0ee52f6c83615cf7f511 /net/ipv6
parent3fcfa12904e83cc291cf2b7b05ff2530068920a4 (diff)
[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>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/sit.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index ee0cc285169..84c1ed246af 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -215,6 +215,9 @@ ipip6_tunnel_add_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a, int chg)
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 @@ ipip6_tunnel_del_prl(struct ip_tunnel *t, struct ip_tunnel_prl *a)
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;