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| author | David S. Miller <davem@davemloft.net> | 2020-03-28 00:56:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-28 00:56:55 +0300 |
| commit | e00dd941ff9fa6ed920da5ead95d2598170fe4ea (patch) | |
| tree | 08abcd738b1db515debad3cd3559c3451beca21e /net/ipv4 | |
| parent | 8262e6f9b1034ede34548a04dec4c302d92c9497 (diff) | |
| parent | 4c59406ed00379c8663f8663d82b2537467ce9d7 (diff) | |
| download | linux-e00dd941ff9fa6ed920da5ead95d2598170fe4ea.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2020-03-27
1) Handle NETDEV_UNREGISTER for xfrm device to handle asynchronous
unregister events cleanly. From Raed Salem.
2) Fix vti6 tunnel inter address family TX through bpf_redirect().
From Nicolas Dichtel.
3) Fix lenght check in verify_sec_ctx_len() to avoid a
slab-out-of-bounds. From Xin Long.
4) Add a missing verify_sec_ctx_len check in xfrm_add_acquire
to avoid a possible out-of-bounds to access. From Xin Long.
5) Use built-in RCU list checking of hlist_for_each_entry_rcu
to silence false lockdep warning in __xfrm6_tunnel_spi_lookup
when CONFIG_PROVE_RCU_LIST is enabled. From Madhuparna Bhowmik.
6) Fix a panic on esp offload when crypto is done asynchronously.
From Xin Long.
7) Fix a skb memory leak in an error path of vti6_rcv.
From Torsten Hilbrich.
8) Fix a race that can lead to a doulbe free in xfrm_policy_timer.
From Xin Long.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/Kconfig | 1 | ||||
| -rw-r--r-- | net/ipv4/ip_vti.c | 38 |
2 files changed, 31 insertions, 8 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig index f96bd489b362..6490b845e17b 100644 --- a/net/ipv4/Kconfig +++ b/net/ipv4/Kconfig @@ -303,6 +303,7 @@ config SYN_COOKIES config NET_IPVTI tristate "Virtual (secure) IP: tunneling" + depends on IPV6 || IPV6=n select INET_TUNNEL select NET_IP_TUNNEL select XFRM diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c index 37cddd18f282..1b4e6f298648 100644 --- a/net/ipv4/ip_vti.c +++ b/net/ipv4/ip_vti.c @@ -187,17 +187,39 @@ 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)) { + switch (skb->protocol) { + case htons(ETH_P_IP): { + 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); + break; + } +#if IS_ENABLED(CONFIG_IPV6) + case htons(ETH_P_IPV6): + 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; + dev->stats.tx_carrier_errors++; + goto tx_error_icmp; + } + skb_dst_set(skb, dst); + break; +#endif + default: dev->stats.tx_carrier_errors++; goto tx_error_icmp; } - dst = &rt->dst; - skb_dst_set(skb, dst); } dst_hold(dst); |