EXPORT_SYMBOL(ip_vs_get_debug_level);
#endif
-int ip_vs_net_id __read_mostly;
-#ifdef IP_VS_GENERIC_NETNS
-EXPORT_SYMBOL(ip_vs_net_id);
-#endif
+static int ip_vs_net_id __read_mostly;
/* netns cnt used for uniqueness */
static atomic_t ipvs_netns_cnt = ATOMIC_INIT(0);
* template is not available.
* return *ignored=0 i.e. ICMP and NF_DROP
*/
+ rcu_read_lock();
dest = svc->scheduler->schedule(svc, skb);
if (!dest) {
+ rcu_read_unlock();
IP_VS_DBG(1, "p-schedule: no dest found.\n");
kfree(param.pe_data);
*ignored = 0;
* when the template expires */
ct = ip_vs_conn_new(¶m, &dest->addr, dport,
IP_VS_CONN_F_TEMPLATE, dest, skb->mark);
+ rcu_read_unlock();
if (ct == NULL) {
kfree(param.pe_data);
*ignored = -1;
return NULL;
}
+ rcu_read_lock();
dest = svc->scheduler->schedule(svc, skb);
if (dest == NULL) {
+ rcu_read_unlock();
IP_VS_DBG(1, "Schedule: no dest found.\n");
return NULL;
}
cp = ip_vs_conn_new(&p, &dest->addr,
dest->port ? dest->port : pptr[1],
flags, dest, skb->mark);
+ rcu_read_unlock();
if (!cp) {
*ignored = -1;
return NULL;
sizeof(_ports), _ports, &iph);
if (pptr == NULL)
return NF_ACCEPT; /* Not for me */
- if (ip_vs_lookup_real_service(net, af, iph.protocol,
- &iph.saddr,
- pptr[0])) {
+ if (ip_vs_has_real_service(net, af, iph.protocol, &iph.saddr,
+ pptr[0])) {
/*
* Notify the real server: there is no
* existing entry if it is not RST
iph.len)))) {
#ifdef CONFIG_IP_VS_IPV6
if (af == AF_INET6) {
- struct net *net =
- dev_net(skb_dst(skb)->dev);
-
if (!skb->dev)
skb->dev = net->loopback_dev;
icmpv6_send(skb,
skb_reset_network_header(skb);
IP_VS_DBG(12, "ICMP for IPIP %pI4->%pI4: mtu=%u\n",
&ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr, mtu);
- rcu_read_lock();
ipv4_update_pmtu(skb, dev_net(skb->dev),
mtu, 0, 0, 0, 0);
- rcu_read_unlock();
/* Client uses PMTUD? */
if (!(cih->frag_off & htons(IP_DF)))
goto ignore_ipip;
/* Prefer the resulting PMTU */
if (dest) {
- spin_lock(&dest->dst_lock);
- if (dest->dst_cache)
- mtu = dst_mtu(dest->dst_cache);
- spin_unlock(&dest->dst_lock);
+ struct ip_vs_dest_dst *dest_dst;
+
+ rcu_read_lock();
+ dest_dst = rcu_dereference(dest->dest_dst);
+ if (dest_dst)
+ mtu = dst_mtu(dest_dst->dst_cache);
+ rcu_read_unlock();
}
if (mtu > 68 + sizeof(struct iphdr))
mtu -= sizeof(struct iphdr);
}
/* ipvs enabled in this netns ? */
net = skb_net(skb);
- if (!net_ipvs(net)->enable)
+ ipvs = net_ipvs(net);
+ if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
return NF_ACCEPT;
ip_vs_fill_iph_skb(af, skb, &iph);
}
IP_VS_DBG_PKT(11, af, pp, skb, 0, "Incoming packet");
- ipvs = net_ipvs(net);
/* Check the server status */
if (cp->dest && !(cp->dest->flags & IP_VS_DEST_F_AVAILABLE)) {
/* the destination server is not available */
{
int r;
struct net *net;
+ struct netns_ipvs *ipvs;
if (ip_hdr(skb)->protocol != IPPROTO_ICMP)
return NF_ACCEPT;
/* ipvs enabled in this netns ? */
net = skb_net(skb);
- if (!net_ipvs(net)->enable)
+ ipvs = net_ipvs(net);
+ if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
return NF_ACCEPT;
return ip_vs_in_icmp(skb, &r, hooknum);
{
int r;
struct net *net;
+ struct netns_ipvs *ipvs;
struct ip_vs_iphdr iphdr;
ip_vs_fill_iph_skb(AF_INET6, skb, &iphdr);
/* ipvs enabled in this netns ? */
net = skb_net(skb);
- if (!net_ipvs(net)->enable)
+ ipvs = net_ipvs(net);
+ if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
return NF_ACCEPT;
return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr);