| Neale Ranns | cbe25aa | 2019-09-30 10:53:31 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2015 Cisco and/or its affiliates. |
| 3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | * you may not use this file except in compliance with the License. |
| 5 | * You may obtain a copy of the License at: |
| 6 | * |
| 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | * |
| 9 | * Unless required by applicable law or agreed to in writing, software |
| 10 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | * See the License for the specific language governing permissions and |
| 13 | * limitations under the License. |
| 14 | */ |
| 15 | |
| 16 | #ifndef __ARP_H__ |
| 17 | #define __ARP_H__ |
| 18 | |
| 19 | #include <vnet/ethernet/ethernet.h> |
| 20 | #include <vnet/ip/ip.h> |
| 21 | #include <vnet/ethernet/arp_packet.h> |
| 22 | |
| 23 | #define foreach_ethernet_arp_error \ |
| 24 | _ (replies_sent, "ARP replies sent") \ |
| 25 | _ (l2_type_not_ethernet, "L2 type not ethernet") \ |
| 26 | _ (l3_type_not_ip4, "L3 type not IP4") \ |
| 27 | _ (l3_src_address_not_local, "IP4 source address not local to subnet") \ |
| 28 | _ (l3_dst_address_not_local, "IP4 destination address not local to subnet") \ |
| 29 | _ (l3_dst_address_unset, "IP4 destination address is unset") \ |
| 30 | _ (l3_src_address_is_local, "IP4 source address matches local interface") \ |
| 31 | _ (l3_src_address_learned, "ARP request IP4 source address learned") \ |
| 32 | _ (replies_received, "ARP replies received") \ |
| 33 | _ (opcode_not_request, "ARP opcode not request") \ |
| 34 | _ (proxy_arp_replies_sent, "Proxy ARP replies sent") \ |
| 35 | _ (l2_address_mismatch, "ARP hw addr does not match L2 frame src addr") \ |
| 36 | _ (gratuitous_arp, "ARP probe or announcement dropped") \ |
| 37 | _ (interface_no_table, "Interface is not mapped to an IP table") \ |
| 38 | _ (interface_not_ip_enabled, "Interface is not IP enabled") \ |
| 39 | _ (unnumbered_mismatch, "RX interface is unnumbered to different subnet") \ |
| 40 | |
| 41 | typedef enum |
| 42 | { |
| 43 | #define _(sym,string) ETHERNET_ARP_ERROR_##sym, |
| 44 | foreach_ethernet_arp_error |
| 45 | #undef _ |
| 46 | ETHERNET_ARP_N_ERROR, |
| 47 | } ethernet_arp_reply_error_t; |
| 48 | |
| 49 | extern int arp_proxy_add (u32 fib_index, |
| 50 | const ip4_address_t * lo_addr, |
| 51 | const ip4_address_t * hi_addr); |
| 52 | extern int arp_proxy_del (u32 fib_index, |
| 53 | const ip4_address_t * lo_addr, |
| 54 | const ip4_address_t * hi_addr); |
| 55 | |
| 56 | extern int arp_proxy_enable (u32 sw_if_index); |
| 57 | extern int arp_proxy_disable (u32 sw_if_index); |
| 58 | |
| 59 | /** |
| 60 | * call back function when walking the DB of proxy ARPs |
| 61 | * @return 0 to stop the walk !0 to continue |
| 62 | */ |
| 63 | typedef walk_rc_t (proxy_arp_walk_t) (const ip4_address_t * lo_addr, |
| 64 | const ip4_address_t * hi_addr, |
| 65 | u32 fib_index, void *dat); |
| 66 | |
| 67 | extern void proxy_arp_walk (proxy_arp_walk_t cb, void *data); |
| 68 | |
| 69 | /** |
| 70 | * call back function when walking the DB of proxy ARP interface |
| 71 | * @return 0 to stop the walk !0 to continue |
| 72 | */ |
| 73 | typedef walk_rc_t (proxy_arp_intf_walk_t) (u32 sw_if_index, void *data); |
| 74 | |
| 75 | extern void proxy_arp_intfc_walk (proxy_arp_intf_walk_t cb, void *data); |
| 76 | |
| 77 | #endif |
| 78 | |
| 79 | /* |
| 80 | * fd.io coding-style-patch-verification: ON |
| 81 | * |
| 82 | * Local Variables: |
| 83 | * eval: (c-set-style "gnu") |
| 84 | * End: |
| 85 | */ |