/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef __ARP_H__ #define __ARP_H__ #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/arp_packet.h> #define foreach_ethernet_arp_error \ _ (replies_sent, "ARP replies sent") \ _ (l2_type_not_ethernet, "L2 type not ethernet") \ _ (l3_type_not_ip4, "L3 type not IP4") \ _ (l3_src_address_not_local, "IP4 source address not local to subnet") \ _ (l3_dst_address_not_local, "IP4 destination address not local to subnet") \ _ (l3_dst_address_unset, "IP4 destination address is unset") \ _ (l3_src_address_is_local, "IP4 source address matches local interface") \ _ (l3_src_address_learned, "ARP request IP4 source address learned") \ _ (replies_received, "ARP replies received") \ _ (opcode_not_request, "ARP opcode not request") \ _ (proxy_arp_replies_sent, "Proxy ARP replies sent") \ _ (l2_address_mismatch, "ARP hw addr does not match L2 frame src addr") \ _ (gratuitous_arp, "ARP probe or announcement dropped") \ _ (interface_no_table, "Interface is not mapped to an IP table") \ _ (interface_not_ip_enabled, "Interface is not IP enabled") \ _ (unnumbered_mismatch, "RX interface is unnumbered to different subnet") \ typedef enum { #define _(sym,string) ETHERNET_ARP_ERROR_##sym, foreach_ethernet_arp_error #undef _ ETHERNET_ARP_N_ERROR, } ethernet_arp_reply_error_t; extern int arp_proxy_add (u32 fib_index, const ip4_address_t * lo_addr, const ip4_address_t * hi_addr); extern int arp_proxy_del (u32 fib_index, const ip4_address_t * lo_addr, const ip4_address_t * hi_addr); extern int arp_proxy_enable (u32 sw_if_index); extern int arp_proxy_disable (u32 sw_if_index); /** * call back function when walking the DB of proxy ARPs * @return 0 to stop the walk !0 to continue */ typedef walk_rc_t (proxy_arp_walk_t) (const ip4_address_t * lo_addr, const ip4_address_t * hi_addr, u32 fib_index, void *dat); extern void proxy_arp_walk (proxy_arp_walk_t cb, void *data); /** * call back function when walking the DB of proxy ARP interface * @return 0 to stop the walk !0 to continue */ typedef walk_rc_t (proxy_arp_intf_walk_t) (u32 sw_if_index, void *data); extern void proxy_arp_intfc_walk (proxy_arp_intf_walk_t cb, void *data); #endif /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */