projects / ovs.git / blame
| Commit | Line | Data |
|---|---|---|
| 9cb8d24d | 1 | /* |
| e0edde6f | 2 | * Copyright (c) 2007-2012 Nicira, Inc. |
| 9cb8d24d | 3 | * |
| a9a29d22 JG |
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. | |
| 7 | * | |
| 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. | |
| 12 | * | |
| 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 | |
| 16 | * 02110-1301, USA | |
| 9cb8d24d JG |
17 | */ |
| 18 | ||
| 19 | #ifndef COMPAT_H | |
| 20 | #define COMPAT_H 1 | |
| 21 | ||
| 6c5d24af PS |
22 | #include <linux/in.h> |
| 23 | #include <linux/in_route.h> | |
| 9cb8d24d | 24 | #include <linux/netlink.h> |
| 6c5d24af PS |
25 | #include <net/route.h> |
| 26 | #include <net/xfrm.h> | |
| 27 | ||
| eba9291a PS |
28 | static inline void skb_clear_rxhash(struct sk_buff *skb) |
| 29 | { | |
| 30 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35) | |
| 31 | skb->rxhash = 0; | |
| 32 | #endif | |
| 33 | } | |
| 34 | ||
| 14002a59 PS |
35 | #ifdef HAVE_PARALLEL_OPS |
| 36 | #define SET_PARALLEL_OPS .parallel_ops = true, | |
| 37 | #else | |
| 38 | #define SET_PARALLEL_OPS | |
| 39 | #endif | |
| 40 | ||
| 5ebaf571 PS |
41 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36) |
| 42 | #define rt_dst(rt) (rt->dst) | |
| 43 | #else | |
| 44 | #define rt_dst(rt) (rt->u.dst) | |
| 45 | #endif | |
| 46 | ||
| 1b7ee51f PS |
47 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33) |
| 48 | #define inet_sport(sk) (inet_sk(sk)->sport) | |
| 49 | #else | |
| 50 | #define inet_sport(sk) (inet_sk(sk)->inet_sport) | |
| 51 | #endif | |
| 52 | ||
| 6c5d24af PS |
53 | static inline struct rtable *find_route(struct net *net, |
| 54 | __be32 *saddr, __be32 daddr, | |
| 55 | u8 ipproto, u8 tos, u32 skb_mark) | |
| 56 | { | |
| 57 | struct rtable *rt; | |
| 58 | /* Tunnel configuration keeps DSCP part of TOS bits, But Linux | |
| 59 | * router expect RT_TOS bits only. */ | |
| 60 | ||
| 61 | #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39) | |
| 62 | struct flowi fl = { .nl_u = { .ip4_u = { | |
| 63 | .daddr = daddr, | |
| 64 | .saddr = *saddr, | |
| 6c5d24af | 65 | .tos = RT_TOS(tos) } }, |
| 6c5d24af | 66 | .mark = skb_mark, |
| 6c5d24af PS |
67 | .proto = ipproto }; |
| 68 | ||
| 69 | if (unlikely(ip_route_output_key(net, &rt, &fl))) | |
| 70 | return ERR_PTR(-EADDRNOTAVAIL); | |
| 71 | *saddr = fl.nl_u.ip4_u.saddr; | |
| 72 | return rt; | |
| 73 | #else | |
| 74 | struct flowi4 fl = { .daddr = daddr, | |
| 75 | .saddr = *saddr, | |
| 76 | .flowi4_tos = RT_TOS(tos), | |
| 77 | .flowi4_mark = skb_mark, | |
| 78 | .flowi4_proto = ipproto }; | |
| 79 | ||
| 80 | rt = ip_route_output_key(net, &fl); | |
| 81 | *saddr = fl.saddr; | |
| 82 | return rt; | |
| 83 | #endif | |
| 84 | } | |
| 9cb8d24d | 85 | #endif /* compat.h */ |