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 */ 88