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git.proxmox.com Git - ovs.git/blob - datapath/compat.h
2 * Copyright (c) 2007-2012 Nicira, Inc.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of version 2 of the GNU General Public
6 * License as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 #include <linux/in_route.h>
24 #include <linux/netlink.h>
25 #include <net/route.h>
28 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)
29 #define GROUP_ID(grp) 0
31 #define GROUP_ID(grp) ((grp)->id)
34 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
35 #define rt_dst(rt) (rt->dst)
37 #define rt_dst(rt) (rt->u.dst)
40 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
41 #define inet_sport(sk) (inet_sk(sk)->sport)
43 #define inet_sport(sk) (inet_sk(sk)->inet_sport)
46 static inline struct rtable
*find_route(struct net
*net
,
47 __be32
*saddr
, __be32 daddr
,
48 u8 ipproto
, u8 tos
, u32 skb_mark
)
51 /* Tunnel configuration keeps DSCP part of TOS bits, But Linux
52 * router expect RT_TOS bits only.
55 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
56 struct flowi fl
= { .nl_u
= { .ip4_u
= {
59 .tos
= RT_TOS(tos
) } },
63 if (unlikely(ip_route_output_key(net
, &rt
, &fl
)))
64 return ERR_PTR(-EADDRNOTAVAIL
);
65 *saddr
= fl
.nl_u
.ip4_u
.saddr
;
68 struct flowi4 fl
= { .daddr
= daddr
,
70 .flowi4_tos
= RT_TOS(tos
),
71 .flowi4_mark
= skb_mark
,
72 .flowi4_proto
= ipproto
};
74 rt
= ip_route_output_key(net
, &fl
);
80 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
81 static inline bool skb_encapsulation(struct sk_buff
*skb
)
83 return skb
->encapsulation
;
86 #define skb_encapsulation(skb) false