diff options
| author |   John W. Linville <linville@tuxdriver.com> | 2015-10-26 17:01:45 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-10-30 12:10:51 +0900 |
| commit | 3a56f86f1be6a381345800d69999eaff87e0161d (patch) | |
| tree | f5e24e4bc9bf1870f52412ad4c5d83e390e975bd /drivers/net/geneve.c | |
| parent | geneve: implement support for IPv6-based tunnels (diff) | |
| download | linux-dev-3a56f86f1be6a381345800d69999eaff87e0161d.tar.xz linux-dev-3a56f86f1be6a381345800d69999eaff87e0161d.zip | |
geneve: handle ipv6 priority like ipv4 tos
Other callers of udp_tunnel6_xmit_skb just pass 0 for the prio
argument. Jesse Gross <jesse@nicira.com> suggested that prio is really
the same as IPv4's tos and should be handled the same, so this is my
interpretation of that suggestion.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported-by: Jesse Gross <jesse@nicira.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/geneve.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 393b0bddf7cf..44e724508c55 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -763,6 +763,7 @@ static struct dst_entry *geneve_get_v6_dst(struct sk_buff *skb, struct geneve_dev *geneve = netdev_priv(dev); struct geneve_sock *gs6 = geneve->sock6; struct dst_entry *dst = NULL; + __u8 prio; memset(fl6, 0, sizeof(*fl6)); fl6->flowi6_mark = skb->mark; @@ -771,7 +772,16 @@ static struct dst_entry *geneve_get_v6_dst(struct sk_buff *skb, if (info) { fl6->daddr = info->key.u.ipv6.dst; fl6->saddr = info->key.u.ipv6.src; + fl6->flowi6_tos = RT_TOS(info->key.tos); } else { + prio = geneve->tos; + if (prio == 1) { + const struct iphdr *iip = ip_hdr(skb); + + prio = ip_tunnel_get_dsfield(iip, skb); + } + + fl6->flowi6_tos = RT_TOS(prio); fl6->daddr = geneve->remote.sin6.sin6_addr; } @@ -897,9 +907,10 @@ static netdev_tx_t geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, struct geneve_dev *geneve = netdev_priv(dev); struct geneve_sock *gs6 = geneve->sock6; struct dst_entry *dst = NULL; + const struct iphdr *iip; /* interior IP header */ int err = -EINVAL; struct flowi6 fl6; - __u8 ttl; + __u8 prio, ttl; __be16 sport; bool udp_csum; bool xnet = !net_eq(geneve->net, dev_net(geneve->dev)); @@ -920,6 +931,8 @@ static netdev_tx_t geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); skb_reset_mac_header(skb); + iip = ip_hdr(skb); + if (info) { const struct ip_tunnel_key *key = &info->key; u8 *opts = NULL; @@ -936,6 +949,7 @@ static netdev_tx_t geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (unlikely(err)) goto err; + prio = ip_tunnel_ecn_encap(key->tos, iip, skb); ttl = key->ttl; } else { udp_csum = false; @@ -944,13 +958,14 @@ static netdev_tx_t geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (unlikely(err)) goto err; + prio = ip_tunnel_ecn_encap(fl6.flowi6_tos, iip, skb); ttl = geneve->ttl; if (!ttl && ipv6_addr_is_multicast(&fl6.daddr)) ttl = 1; ttl = ttl ? : ip6_dst_hoplimit(dst); } err = udp_tunnel6_xmit_skb(dst, gs6->sock->sk, skb, dev, - &fl6.saddr, &fl6.daddr, 0, ttl, + &fl6.saddr, &fl6.daddr, prio, ttl, sport, geneve->dst_port, !udp_csum); iptunnel_xmit_stats(err, &dev->stats, dev->tstats); |