The synchronization protocol is not compatible with heterogeneous pools, so
we need to verify that we're not turning both on at the same time.
This also introduces a switch statement that we'll use to turn on
forwarding types on a case by case basis.
Signed-off-by: Alex Gartrell <agartrell@xxxxxx>
---
net/netfilter/ipvs/ip_vs_ctl.c | 30 ++++++++++++++++++++++++++----
1 file changed, 26 insertions(+), 4 deletions(-)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 2356f1d..6d07a51 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -858,10 +858,6 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
EnterFunction(2);
- /* Temporary for consistency */
- if (udest->af != svc->af)
- return -EINVAL;
-
#ifdef CONFIG_IP_VS_IPV6
if (udest->af == AF_INET6) {
atype = ipv6_addr_type(&udest->addr.in6);
@@ -3355,6 +3351,12 @@ static int ip_vs_genl_new_daemon(struct net *net, struct nlattr **attrs)
attrs[IPVS_DAEMON_ATTR_SYNC_ID]))
return -EINVAL;
+ /* The synchronization protocol is incompatible with mixed family
+ * services
+ */
+ if (net_ipvs(net)->mixed_address_family_dests > 0)
+ return -EINVAL;
+
return start_sync_thread(net,
nla_get_u32(attrs[IPVS_DAEMON_ATTR_STATE]),
nla_data(attrs[IPVS_DAEMON_ATTR_MCAST_IFN]),
@@ -3487,6 +3489,26 @@ static int ip_vs_genl_set_cmd(struct sk_buff *skb, struct genl_info *info)
*/
if (udest.af == 0)
udest.af = svc->af;
+
+ if (udest.af != svc->af) {
+ /* The synchronization protocol is incompatible
+ * with mixed family services
+ */
+ if (net_ipvs(net)->sync_state) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* Which connection types do we support? */
+ switch (udest.conn_flags) {
+ case IP_VS_CONN_F_TUNNEL:
+ /* We are able to forward this */
+ break;
+ default:
+ ret = -EINVAL;
+ goto out;
+ }
+ }
}
switch (cmd) {
--
1.8.1
--
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