Commit 9c5ed2f8 authored by David S. Miller's avatar David S. Miller

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec

Steffen Klassert says:

====================
pull request (net): ipsec 2020-01-21

1) Fix packet tx through bpf_redirect() for xfrm and vti
   interfaces. From Nicolas Dichtel.

2) Do not confirm neighbor when do pmtu update on a virtual
   xfrm interface. From Xu Wang.

3) Support output_mark for offload ESP packets, this was
   forgotten when the output_mark was added initially.
   From Ulrich Weber.

Please pull or let me know if there are problems.
====================
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 80892772 4e4362d2
......@@ -57,6 +57,8 @@ static struct sk_buff *esp4_gro_receive(struct list_head *head,
if (!x)
goto out_reset;
skb->mark = xfrm_smark_get(skb->mark, x);
sp->xvec[sp->len++] = x;
sp->olen++;
......
......@@ -187,9 +187,18 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
int mtu;
if (!dst) {
struct rtable *rt;
fl->u.ip4.flowi4_oif = dev->ifindex;
fl->u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
rt = __ip_route_output_key(dev_net(dev), &fl->u.ip4);
if (IS_ERR(rt)) {
dev->stats.tx_carrier_errors++;
goto tx_error_icmp;
}
dst = &rt->dst;
skb_dst_set(skb, dst);
}
dst_hold(dst);
dst = xfrm_lookup(tunnel->net, dst, fl, NULL, 0);
......
......@@ -79,6 +79,8 @@ static struct sk_buff *esp6_gro_receive(struct list_head *head,
if (!x)
goto out_reset;
skb->mark = xfrm_smark_get(skb->mark, x);
sp->xvec[sp->len++] = x;
sp->olen++;
......
......@@ -449,8 +449,17 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
int err = -1;
int mtu;
if (!dst)
if (!dst) {
fl->u.ip6.flowi6_oif = dev->ifindex;
fl->u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC;
dst = ip6_route_output(dev_net(dev), NULL, &fl->u.ip6);
if (dst->error) {
dst_release(dst);
dst = NULL;
goto tx_err_link_failure;
}
skb_dst_set(skb, dst);
}
dst_hold(dst);
dst = xfrm_lookup(t->net, dst, fl, NULL, 0);
......
......@@ -268,9 +268,6 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
int err = -1;
int mtu;
if (!dst)
goto tx_err_link_failure;
dst_hold(dst);
dst = xfrm_lookup_with_ifid(xi->net, dst, fl, NULL, 0, xi->p.if_id);
if (IS_ERR(dst)) {
......@@ -297,7 +294,7 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
mtu = dst_mtu(dst);
if (!skb->ignore_df && skb->len > mtu) {
skb_dst_update_pmtu(skb, mtu);
skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->protocol == htons(ETH_P_IPV6)) {
if (mtu < IPV6_MIN_MTU)
......@@ -343,6 +340,7 @@ static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct xfrm_if *xi = netdev_priv(dev);
struct net_device_stats *stats = &xi->dev->stats;
struct dst_entry *dst = skb_dst(skb);
struct flowi fl;
int ret;
......@@ -352,10 +350,33 @@ static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev)
case htons(ETH_P_IPV6):
xfrm_decode_session(skb, &fl, AF_INET6);
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
if (!dst) {
fl.u.ip6.flowi6_oif = dev->ifindex;
fl.u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC;
dst = ip6_route_output(dev_net(dev), NULL, &fl.u.ip6);
if (dst->error) {
dst_release(dst);
stats->tx_carrier_errors++;
goto tx_err;
}
skb_dst_set(skb, dst);
}
break;
case htons(ETH_P_IP):
xfrm_decode_session(skb, &fl, AF_INET);
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
if (!dst) {
struct rtable *rt;
fl.u.ip4.flowi4_oif = dev->ifindex;
fl.u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
rt = __ip_route_output_key(dev_net(dev), &fl.u.ip4);
if (IS_ERR(rt)) {
stats->tx_carrier_errors++;
goto tx_err;
}
skb_dst_set(skb, &rt->dst);
}
break;
default:
goto tx_err;
......@@ -563,12 +584,9 @@ static void xfrmi_dev_setup(struct net_device *dev)
{
dev->netdev_ops = &xfrmi_netdev_ops;
dev->type = ARPHRD_NONE;
dev->hard_header_len = ETH_HLEN;
dev->min_header_len = ETH_HLEN;
dev->mtu = ETH_DATA_LEN;
dev->min_mtu = ETH_MIN_MTU;
dev->max_mtu = ETH_DATA_LEN;
dev->addr_len = ETH_ALEN;
dev->max_mtu = IP_MAX_MTU;
dev->flags = IFF_NOARP;
dev->needs_free_netdev = true;
dev->priv_destructor = xfrmi_dev_free;
......
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