net/openvswitch/flow_netlink.h

   1 /*
   2  * Copyright (c) 2007-2013 Nicira, Inc.
   3  *
   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
  17  */
  18
  19
  20 #ifndef FLOW_NETLINK_H
  21 #define FLOW_NETLINK_H 1
  22
  23 #include <linux/kernel.h>
  24 #include <linux/netlink.h>
  25 #include <linux/openvswitch.h>
  26 #include <linux/spinlock.h>
  27 #include <linux/types.h>
  28 #include <linux/rcupdate.h>
  29 #include <linux/if_ether.h>
  30 #include <linux/in6.h>
  31 #include <linux/jiffies.h>
  32 #include <linux/time.h>
  33 #include <linux/flex_array.h>
  34
  35 #include <net/inet_ecn.h>
  36 #include <net/ip_tunnels.h>
  37
  38 #include "flow.h"
  39
  40 size_t ovs_tun_key_attr_size(void);
  41 size_t ovs_key_attr_size(void);
  42
  43 void ovs_match_init(struct sw_flow_match *match,
  44                     struct sw_flow_key *key, bool reset_key,
  45                     struct sw_flow_mask *mask);
  46
  47 int ovs_nla_put_key(const struct sw_flow_key *, const struct sw_flow_key *,
  48                     int attr, bool is_mask, struct sk_buff *);
  49 int parse_flow_nlattrs(const struct nlattr *attr, const struct nlattr *a[],
  50                        u64 *attrsp, bool log);
  51 int ovs_nla_get_flow_metadata(struct net *net,
  52                               const struct nlattr *a[OVS_KEY_ATTR_MAX + 1],
  53                               u64 attrs, struct sw_flow_key *key, bool log);
  54
  55 int ovs_nla_put_identifier(const struct sw_flow *flow, struct sk_buff *skb);
  56 int ovs_nla_put_masked_key(const struct sw_flow *flow, struct sk_buff *skb);
  57 int ovs_nla_put_mask(const struct sw_flow *flow, struct sk_buff *skb);
  58
  59 int ovs_nla_get_match(struct net *, struct sw_flow_match *,
  60                       const struct nlattr *key, const struct nlattr *mask,
  61                       bool log);
  62
  63 int ovs_nla_put_tunnel_info(struct sk_buff *skb,
  64                             struct ip_tunnel_info *tun_info);
  65
  66 bool ovs_nla_get_ufid(struct sw_flow_id *, const struct nlattr *, bool log);
  67 int ovs_nla_get_identifier(struct sw_flow_id *sfid, const struct nlattr *ufid,
  68                            const struct sw_flow_key *key, bool log);
  69 u32 ovs_nla_get_ufid_flags(const struct nlattr *attr);
  70
  71 int ovs_nla_copy_actions(struct net *net, const struct nlattr *attr,
  72                          const struct sw_flow_key *key,
  73                          struct sw_flow_actions **sfa, bool log);
  74 int ovs_nla_add_action(struct sw_flow_actions **sfa, int attrtype,
  75                        void *data, int len, bool log);
  76 int ovs_nla_put_actions(const struct nlattr *attr,
  77                         int len, struct sk_buff *skb);
  78
  79 void ovs_nla_free_flow_actions(struct sw_flow_actions *);
  80 void ovs_nla_free_flow_actions_rcu(struct sw_flow_actions *);
  81
  82 int nsh_key_from_nlattr(const struct nlattr *attr, struct ovs_key_nsh *nsh,
  83                         struct ovs_key_nsh *nsh_mask);
  84 int nsh_hdr_from_nlattr(const struct nlattr *attr, struct nshhdr *nh,
  85                         size_t size);
  86
  87 #endif /* flow_netlink.h */