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Date: Fri, 02 Oct 2009 14:19:05 -0400
From: Brian Haley <brian.haley@...com>
To: Maciej Żenczykowski <zenczykowski@...il.com>
CC: Eric Dumazet <eric.dumazet@...il.com>,
David Miller <davem@...emloft.net>, atis@...rotik.com,
panther@...abit.hu, netdev@...r.kernel.org
Subject: [PATCH] Use sk_mark for IPv6 routing lookups
Maciej Żenczykowski wrote:
> Cool!
>
> As I've already pointed out in a post 2 or so weeks ago, we need the
> exact same treatment in a ton of places throughout the code (tcp,
> ipv6, decnet, etc...).
Here's a try at the IPv6 part...
Add support for IPv6 route lookups using sk_mark.
Signed-off-by: Brian Haley <brian.haley@...com>
---
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index e2bdc6d..a615b4d 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -147,6 +147,7 @@ ipv4_connected:
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
ipv6_addr_copy(&fl.fl6_src, &np->saddr);
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
fl.fl_ip_dport = inet->dport;
fl.fl_ip_sport = inet->sport;
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index cc4797d..a9f4a21 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -194,6 +194,7 @@ int inet6_csk_xmit(struct sk_buff *skb, int ipfragok)
fl.fl6_flowlabel = np->flow_label;
IP6_ECN_flow_xmit(sk, fl.fl6_flowlabel);
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
fl.fl_ip_sport = inet->sport;
fl.fl_ip_dport = inet->dport;
security_sk_classify_flow(sk, &fl);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 7161539..d98df54 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -1523,6 +1523,7 @@ static int ip6mr_forward2(struct sk_buff *skb, struct mfc6_cache *c, int vifi)
fl = (struct flowi) {
.oif = vif->link,
+ .mark = skb->mark,
.nl_u = { .ip6_u =
{ .daddr = ipv6h->daddr, }
}
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 14f54eb..dc0f736 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -424,6 +424,7 @@ sticky_done:
fl.fl6_flowlabel = 0;
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
if (optlen == 0)
goto update;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index dbd19a7..03a64c1 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -629,6 +629,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
.saddr = tiph->saddr,
.tos = RT_TOS(tos) } },
.oif = tunnel->parms.link,
+ .mark = skb->mark,
.proto = IPPROTO_IPV6 };
if (ip_route_output_key(dev_net(dev), &rt, &fl)) {
stats->tx_carrier_errors++;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 21d100b..321aafd 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -243,6 +243,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
ipv6_addr_copy(&fl.fl6_src,
(saddr ? saddr : &np->saddr));
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
fl.fl_ip_dport = usin->sin6_port;
fl.fl_ip_sport = inet->sport;
@@ -383,6 +384,7 @@ static void tcp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
ipv6_addr_copy(&fl.fl6_dst, &np->daddr);
ipv6_addr_copy(&fl.fl6_src, &np->saddr);
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
fl.fl_ip_dport = inet->dport;
fl.fl_ip_sport = inet->sport;
security_skb_classify_flow(skb, &fl);
@@ -477,6 +479,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req)
ipv6_addr_copy(&fl.fl6_src, &treq->loc_addr);
fl.fl6_flowlabel = 0;
fl.oif = treq->iif;
+ fl.mark = sk->sk_mark;
fl.fl_ip_dport = inet_rsk(req)->rmt_port;
fl.fl_ip_sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, &fl);
@@ -1345,6 +1348,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
}
ipv6_addr_copy(&fl.fl6_src, &treq->loc_addr);
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
fl.fl_ip_dport = inet_rsk(req)->rmt_port;
fl.fl_ip_sport = inet_rsk(req)->loc_port;
security_req_classify_flow(req, &fl);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 3a60f12..3842c55 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -879,6 +879,8 @@ do_udp_sendmsg:
if (!fl.oif)
fl.oif = np->sticky_pktinfo.ipi6_ifindex;
+ fl.mark = sk->sk_mark;
+
if (msg->msg_controllen) {
opt = &opt_space;
memset(opt, 0, sizeof(struct ipv6_txoptions));
--
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