Commit 60d9b031 authored by David Ahern's avatar David Ahern Committed by David S. Miller

net: ipv4: add second dif to multicast source filter

Signed-off-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 67359930
...@@ -118,7 +118,8 @@ extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf, ...@@ -118,7 +118,8 @@ extern int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
struct ip_msfilter __user *optval, int __user *optlen); struct ip_msfilter __user *optval, int __user *optlen);
extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf, extern int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
struct group_filter __user *optval, int __user *optlen); struct group_filter __user *optval, int __user *optlen);
extern int ip_mc_sf_allow(struct sock *sk, __be32 local, __be32 rmt, int dif); extern int ip_mc_sf_allow(struct sock *sk, __be32 local, __be32 rmt,
int dif, int sdif);
extern void ip_mc_init_dev(struct in_device *); extern void ip_mc_init_dev(struct in_device *);
extern void ip_mc_destroy_dev(struct in_device *); extern void ip_mc_destroy_dev(struct in_device *);
extern void ip_mc_up(struct in_device *); extern void ip_mc_up(struct in_device *);
......
...@@ -2549,7 +2549,8 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf, ...@@ -2549,7 +2549,8 @@ int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
/* /*
* check if a multicast source filter allows delivery for a given <src,dst,intf> * check if a multicast source filter allows delivery for a given <src,dst,intf>
*/ */
int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif) int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr,
int dif, int sdif)
{ {
struct inet_sock *inet = inet_sk(sk); struct inet_sock *inet = inet_sk(sk);
struct ip_mc_socklist *pmc; struct ip_mc_socklist *pmc;
...@@ -2564,7 +2565,8 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif) ...@@ -2564,7 +2565,8 @@ int ip_mc_sf_allow(struct sock *sk, __be32 loc_addr, __be32 rmt_addr, int dif)
rcu_read_lock(); rcu_read_lock();
for_each_pmc_rcu(inet, pmc) { for_each_pmc_rcu(inet, pmc) {
if (pmc->multi.imr_multiaddr.s_addr == loc_addr && if (pmc->multi.imr_multiaddr.s_addr == loc_addr &&
pmc->multi.imr_ifindex == dif) (pmc->multi.imr_ifindex == dif ||
(sdif && pmc->multi.imr_ifindex == sdif)))
break; break;
} }
ret = inet->mc_all; ret = inet->mc_all;
......
...@@ -193,7 +193,7 @@ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) ...@@ -193,7 +193,7 @@ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash)
delivered = 1; delivered = 1;
if ((iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) && if ((iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) &&
ip_mc_sf_allow(sk, iph->daddr, iph->saddr, ip_mc_sf_allow(sk, iph->daddr, iph->saddr,
skb->dev->ifindex)) { skb->dev->ifindex, sdif)) {
struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC); struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
/* Not releasing hash table! */ /* Not releasing hash table! */
......
...@@ -606,7 +606,7 @@ static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk, ...@@ -606,7 +606,7 @@ static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk,
(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif && (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif &&
sk->sk_bound_dev_if != sdif)) sk->sk_bound_dev_if != sdif))
return false; return false;
if (!ip_mc_sf_allow(sk, loc_addr, rmt_addr, dif)) if (!ip_mc_sf_allow(sk, loc_addr, rmt_addr, dif, sdif))
return false; return false;
return true; return true;
} }
......
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