net: inet: Support UID-based routing in IP protocols.

[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / net / ipv6 / route.c

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 2c79063b665383c98a5132f09bddd05b7fd9f1bc..c97e4ab54cc7fe9a26f1384a9b64c0fd9dc99b89 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1143,7 +1143,7 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
 }
 
 void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
-                    int oif, u32 mark)
+                    int oif, u32 mark, kuid_t uid)
 {
        const struct ipv6hdr *iph = (struct ipv6hdr *) skb->data;
        struct dst_entry *dst;
@@ -1156,6 +1156,7 @@ void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
        fl6.daddr = iph->daddr;
        fl6.saddr = iph->saddr;
        fl6.flowlabel = ip6_flowinfo(iph);
+       fl6.flowi6_uid = uid;
 
        dst = ip6_route_output(net, NULL, &fl6);
        if (!dst->error)
@@ -1167,11 +1168,12 @@ EXPORT_SYMBOL_GPL(ip6_update_pmtu);
 void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu)
 {
        ip6_update_pmtu(skb, sock_net(sk), mtu,
-                       sk->sk_bound_dev_if, sk->sk_mark);
+                       sk->sk_bound_dev_if, sk->sk_mark, sk->sk_uid);
 }
 EXPORT_SYMBOL_GPL(ip6_sk_update_pmtu);
 
-void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark)
+void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark,
+                 kuid_t uid)
 {
        const struct ipv6hdr *iph = (struct ipv6hdr *) skb->data;
        struct dst_entry *dst;
@@ -1184,6 +1186,7 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark)
        fl6.daddr = iph->daddr;
        fl6.saddr = iph->saddr;
        fl6.flowlabel = ip6_flowinfo(iph);
+       fl6.flowi6_uid = uid;
 
        dst = ip6_route_output(net, NULL, &fl6);
        if (!dst->error)
@@ -1194,7 +1197,8 @@ EXPORT_SYMBOL_GPL(ip6_redirect);
 
 void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk)
 {
-       ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark);
+       ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark,
+                    sk->sk_uid);
 }
 EXPORT_SYMBOL_GPL(ip6_sk_redirect);