Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/route.h b/include/net/route.h
index bb53cdb..6c51684 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
@@ -15,11 +16,6 @@
* Alexey Kuznetsov: Major changes for new routing code.
* Mike McLagan : Routing by source
* Robert Olsson : Added rt_cache statistics
- *
- * 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.
*/
#ifndef _ROUTE_H
#define _ROUTE_H
@@ -29,6 +25,8 @@
#include <net/flow.h>
#include <net/inet_sock.h>
#include <net/ip_fib.h>
+#include <net/arp.h>
+#include <net/ndisc.h>
#include <linux/in_route.h>
#include <linux/rtnetlink.h>
#include <linux/rcupdate.h>
@@ -59,8 +57,12 @@
int rt_iif;
+ u8 rt_gw_family;
/* Info on neighbour */
- __be32 rt_gateway;
+ union {
+ __be32 rt_gw4;
+ struct in6_addr rt_gw6;
+ };
/* Miscellaneous cached information */
u32 rt_mtu_locked:1,
@@ -82,8 +84,8 @@
static inline __be32 rt_nexthop(const struct rtable *rt, __be32 daddr)
{
- if (rt->rt_gateway)
- return rt->rt_gateway;
+ if (rt->rt_gw_family == AF_INET)
+ return rt->rt_gw4;
return daddr;
}
@@ -201,10 +203,9 @@
}
void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu, int oif,
- u32 mark, u8 protocol, int flow_flags);
+ u8 protocol);
void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu);
-void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark,
- u8 protocol, int flow_flags);
+void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u8 protocol);
void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk);
void ip_rt_send_redirect(struct sk_buff *skb);
@@ -221,6 +222,7 @@
struct rtable *rt_dst_alloc(struct net_device *dev,
unsigned int flags, u16 type,
bool nopolicy, bool noxfrm, bool will_cache);
+struct rtable *rt_dst_clone(struct net_device *dev, struct rtable *rt);
struct in_ifaddr;
void fib_add_ifaddr(struct in_ifaddr *);
@@ -230,6 +232,10 @@
void rt_add_uncached_list(struct rtable *rt);
void rt_del_uncached_list(struct rtable *rt);
+int fib_dump_info_fnhe(struct sk_buff *skb, struct netlink_callback *cb,
+ u32 table_id, struct fib_info *fi,
+ int *fa_index, int fa_start, unsigned int flags);
+
static inline void ip_rt_put(struct rtable *rt)
{
/* dst_release() accepts a NULL parameter.
@@ -348,4 +354,34 @@
return hoplimit;
}
+static inline struct neighbour *ip_neigh_gw4(struct net_device *dev,
+ __be32 daddr)
+{
+ struct neighbour *neigh;
+
+ neigh = __ipv4_neigh_lookup_noref(dev, daddr);
+ if (unlikely(!neigh))
+ neigh = __neigh_create(&arp_tbl, &daddr, dev, false);
+
+ return neigh;
+}
+
+static inline struct neighbour *ip_neigh_for_gw(struct rtable *rt,
+ struct sk_buff *skb,
+ bool *is_v6gw)
+{
+ struct net_device *dev = rt->dst.dev;
+ struct neighbour *neigh;
+
+ if (likely(rt->rt_gw_family == AF_INET)) {
+ neigh = ip_neigh_gw4(dev, rt->rt_gw4);
+ } else if (rt->rt_gw_family == AF_INET6) {
+ neigh = ip_neigh_gw6(dev, &rt->rt_gw6);
+ *is_v6gw = true;
+ } else {
+ neigh = ip_neigh_gw4(dev, ip_hdr(skb)->daddr);
+ }
+ return neigh;
+}
+
#endif /* _ROUTE_H */