net: Add support for VRFs to inetpeer cache
inetpeer caches based on address only, so duplicate IP addresses within
a namespace return the same cached entry. Enhance the ipv4 address key
to contain both the IPv4 address and VRF device index.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index f16488e..79fe05b 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -309,9 +309,10 @@
rc = false;
if (icmp_global_allow()) {
+ int vif = vrf_master_ifindex(dst->dev);
struct inet_peer *peer;
- peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, 1);
+ peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, vif, 1);
rc = inet_peer_xrlim_allow(peer,
net->ipv4.sysctl_icmp_ratelimit);
if (peer)
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 15762e7..fa7f153 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -151,7 +151,8 @@
qp->vif = arg->vif;
qp->user = arg->user;
qp->peer = sysctl_ipfrag_max_dist ?
- inet_getpeer_v4(net->ipv4.peers, arg->iph->saddr, 1) : NULL;
+ inet_getpeer_v4(net->ipv4.peers, arg->iph->saddr, arg->vif, 1) :
+ NULL;
}
static void ip4_frag_free(struct inet_frag_queue *q)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f3087aa..6b91879 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -838,6 +838,7 @@
struct inet_peer *peer;
struct net *net;
int log_martians;
+ int vif;
rcu_read_lock();
in_dev = __in_dev_get_rcu(rt->dst.dev);
@@ -846,10 +847,11 @@
return;
}
log_martians = IN_DEV_LOG_MARTIANS(in_dev);
+ vif = vrf_master_ifindex_rcu(rt->dst.dev);
rcu_read_unlock();
net = dev_net(rt->dst.dev);
- peer = inet_getpeer_v4(net->ipv4.peers, ip_hdr(skb)->saddr, 1);
+ peer = inet_getpeer_v4(net->ipv4.peers, ip_hdr(skb)->saddr, vif, 1);
if (!peer) {
icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST,
rt_nexthop(rt, ip_hdr(skb)->daddr));
@@ -938,7 +940,8 @@
break;
}
- peer = inet_getpeer_v4(net->ipv4.peers, ip_hdr(skb)->saddr, 1);
+ peer = inet_getpeer_v4(net->ipv4.peers, ip_hdr(skb)->saddr,
+ vrf_master_ifindex(skb->dev), 1);
send = true;
if (peer) {