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Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 0428b64..cd40415 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -736,6 +736,7 @@ static inline int compare_keys(struct rtable *rt1, struct rtable *rt2)
(rt1->rt_mark ^ rt2->rt_mark) |
(rt1->rt_key_tos ^ rt2->rt_key_tos) |
(rt1->rt_route_iif ^ rt2->rt_route_iif) |
+ (rt1->rt_uid ^ rt2->rt_uid) |
(rt1->rt_oif ^ rt2->rt_oif)) == 0;
}
@@ -1847,6 +1848,7 @@ void ip_rt_get_source(u8 *addr, struct sk_buff *skb, struct rtable *rt)
fl4.flowi4_oif = rt->dst.dev->ifindex;
fl4.flowi4_iif = skb->dev->ifindex;
fl4.flowi4_mark = skb->mark;
+ fl4.flowi4_uid = skb->sk ? sock_i_uid(skb->sk) : 0;
rcu_read_lock();
if (fib_lookup(dev_net(rt->dst.dev), &fl4, &res) == 0)
@@ -2024,6 +2026,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
rth->rt_iif = dev->ifindex;
rth->rt_oif = 0;
rth->rt_mark = skb->mark;
+ rth->rt_uid = 0;
rth->rt_gateway = daddr;
rth->rt_spec_dst= spec_dst;
rth->rt_peer_genid = 0;
@@ -2159,6 +2162,7 @@ static int __mkroute_input(struct sk_buff *skb,
rth->rt_iif = in_dev->dev->ifindex;
rth->rt_oif = 0;
rth->rt_mark = skb->mark;
+ rth->rt_uid = 0;
rth->rt_gateway = daddr;
rth->rt_spec_dst= spec_dst;
rth->rt_peer_genid = 0;
@@ -2342,6 +2346,7 @@ local_input:
rth->rt_iif = dev->ifindex;
rth->rt_oif = 0;
rth->rt_mark = skb->mark;
+ rth->rt_uid = 0;
rth->rt_gateway = daddr;
rth->rt_spec_dst= spec_dst;
rth->rt_peer_genid = 0;
@@ -2545,6 +2550,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
rth->rt_iif = orig_oif ? : dev_out->ifindex;
rth->rt_oif = orig_oif;
rth->rt_mark = fl4->flowi4_mark;
+ rth->rt_uid = fl4->flowi4_uid;
rth->rt_gateway = fl4->daddr;
rth->rt_spec_dst= fl4->saddr;
rth->rt_peer_genid = 0;
@@ -2796,6 +2802,7 @@ struct rtable *__ip_route_output_key(struct net *net, struct flowi4 *flp4)
rt_is_output_route(rth) &&
rth->rt_oif == flp4->flowi4_oif &&
rth->rt_mark == flp4->flowi4_mark &&
+ rth->rt_uid == flp4->flowi4_uid &&
!((rth->rt_key_tos ^ flp4->flowi4_tos) &
(IPTOS_RT_MASK | RTO_ONLINK)) &&
net_eq(dev_net(rth->dst.dev), net) &&
@@ -2873,6 +2880,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
rt->rt_iif = ort->rt_iif;
rt->rt_oif = ort->rt_oif;
rt->rt_mark = ort->rt_mark;
+ rt->rt_uid = ort->rt_uid;
rt->rt_genid = rt_genid(net);
rt->rt_flags = ort->rt_flags;
@@ -2968,6 +2976,9 @@ static int rt_fill_info(struct net *net,
if (rt->rt_mark)
NLA_PUT_BE32(skb, RTA_MARK, rt->rt_mark);
+ if (rt->rt_uid != (uid_t) -1)
+ NLA_PUT_BE32(skb, RTA_UID, rt->rt_uid);
+
error = rt->dst.error;
if (peer) {
inet_peer_refcheck(rt->peer);
@@ -3083,6 +3094,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
.flowi4_tos = rtm->rtm_tos,
.flowi4_oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0,
.flowi4_mark = mark,
+ .flowi4_uid = tb[RTA_UID] ? nla_get_u32(tb[RTA_UID]) : current_uid(),
};
rt = ip_route_output_key(net, &fl4);