From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/net/mpls/mpls_iptunnel.c | 40 +++++++++++++++++++++++-----------------
1 files changed, 23 insertions(+), 17 deletions(-)
diff --git a/kernel/net/mpls/mpls_iptunnel.c b/kernel/net/mpls/mpls_iptunnel.c
index faf6ef1..ef59e25 100644
--- a/kernel/net/mpls/mpls_iptunnel.c
+++ b/kernel/net/mpls/mpls_iptunnel.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* mpls tunnels An implementation mpls tunnels using the light weight tunnel
* infrastructure
*
* Authors: Roopa Prabhu, <roopa@cumulusnetworks.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
*/
#include <linux/types.h>
#include <linux/skbuff.h>
@@ -137,12 +132,22 @@
mpls_stats_inc_outucastpkts(out_dev, skb);
- if (rt)
- err = neigh_xmit(NEIGH_ARP_TABLE, out_dev, &rt->rt_gateway,
- skb);
- else if (rt6)
- err = neigh_xmit(NEIGH_ND_TABLE, out_dev, &rt6->rt6i_gateway,
- skb);
+ if (rt) {
+ if (rt->rt_gw_family == AF_INET6)
+ err = neigh_xmit(NEIGH_ND_TABLE, out_dev, &rt->rt_gw6,
+ skb);
+ else
+ err = neigh_xmit(NEIGH_ARP_TABLE, out_dev, &rt->rt_gw4,
+ skb);
+ } else if (rt6) {
+ if (ipv6_addr_v4mapped(&rt6->rt6i_gateway)) {
+ /* 6PE (RFC 4798) */
+ err = neigh_xmit(NEIGH_ARP_TABLE, out_dev, &rt6->rt6i_gateway.s6_addr32[3],
+ skb);
+ } else
+ err = neigh_xmit(NEIGH_ND_TABLE, out_dev, &rt6->rt6i_gateway,
+ skb);
+ }
if (err)
net_dbg_ratelimited("%s: packet transmission failed: %d\n",
__func__, err);
@@ -157,7 +162,7 @@
return -EINVAL;
}
-static int mpls_build_state(struct nlattr *nla,
+static int mpls_build_state(struct net *net, struct nlattr *nla,
unsigned int family, const void *cfg,
struct lwtunnel_state **ts,
struct netlink_ext_ack *extack)
@@ -168,8 +173,8 @@
u8 n_labels;
int ret;
- ret = nla_parse_nested(tb, MPLS_IPTUNNEL_MAX, nla,
- mpls_iptunnel_policy, extack);
+ ret = nla_parse_nested_deprecated(tb, MPLS_IPTUNNEL_MAX, nla,
+ mpls_iptunnel_policy, extack);
if (ret < 0)
return ret;
@@ -183,8 +188,8 @@
&n_labels, NULL, extack))
return -EINVAL;
- newts = lwtunnel_state_alloc(sizeof(*tun_encap_info) +
- n_labels * sizeof(u32));
+ newts = lwtunnel_state_alloc(struct_size(tun_encap_info, label,
+ n_labels));
if (!newts)
return -ENOMEM;
@@ -295,5 +300,6 @@
module_exit(mpls_iptunnel_exit);
MODULE_ALIAS_RTNL_LWT(MPLS);
+MODULE_SOFTDEP("post: mpls_gso");
MODULE_DESCRIPTION("MultiProtocol Label Switching IP Tunnels");
MODULE_LICENSE("GPL v2");
--
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