/* * ethernet/arp.c: IP v4 ARP node * * Copyright (c) 2010 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 included_ethernet_arp_packet_h #define included_ethernet_arp_packet_h #include <vnet/ethernet/mac_address.h> #define foreach_ethernet_arp_hardware_type \ _ (0, reserved) \ _ (1, ethernet) \ _ (2, experimental_ethernet) \ _ (3, ax_25) \ _ (4, proteon_pronet_token_ring) \ _ (5, chaos) \ _ (6, ieee_802) \ _ (7, arcnet) \ _ (8, hyperchannel) \ _ (9, lanstar) \ _ (10, autonet) \ _ (11, localtalk) \ _ (12, localnet) \ _ (13, ultra_link) \ _ (14, smds) \ _ (15, frame_relay) \ _ (16, atm) \ _ (17, hdlc) \ _ (18, fibre_channel) \ _ (19, atm19) \ _ (20, serial_line) \ _ (21, atm21) \ _ (22, mil_std_188_220) \ _ (23, metricom) \ _ (24, ieee_1394) \ _ (25, mapos) \ _ (26, twinaxial) \ _ (27, eui_64) \ _ (28, hiparp) \ _ (29, iso_7816_3) \ _ (30, arpsec) \ _ (31, ipsec_tunnel) \ _ (32, infiniband) \ _ (33, cai) \ _ (34, wiegand) \ _ (35, pure_ip) \ _ (36, hw_exp1) \ _ (256, hw_exp2) #define foreach_ethernet_arp_opcode \ _ (reserved) \ _ (request) \ _ (reply) \ _ (reverse_request) \ _ (reverse_reply) \ _ (drarp_request) \ _ (drarp_reply) \ _ (drarp_error) \ _ (inarp_request) \ _ (inarp_reply) \ _ (arp_nak) \ _ (mars_request) \ _ (mars_multi) \ _ (mars_mserv) \ _ (mars_join) \ _ (mars_leave) \ _ (mars_nak) \ _ (mars_unserv) \ _ (mars_sjoin) \ _ (mars_sleave) \ _ (mars_grouplist_request) \ _ (mars_grouplist_reply) \ _ (mars_redirect_map) \ _ (mapos_unarp) \ _ (exp1) \ _ (exp2) typedef enum { #define _(n,f) ETHERNET_ARP_HARDWARE_TYPE_##f = (n), foreach_ethernet_arp_hardware_type #undef _ } ethernet_arp_hardware_type_t; typedef enum { #define _(f) ETHERNET_ARP_OPCODE_##f, foreach_ethernet_arp_opcode #undef _ ETHERNET_ARP_N_OPCODE, } ethernet_arp_opcode_t; typedef enum { IP4_ARP_NEXT_DROP, IP4_ARP_N_NEXT, } ip4_arp_next_t; typedef enum { IP4_ARP_ERROR_THROTTLED, IP4_ARP_ERROR_RESOLVED, IP4_ARP_ERROR_NO_BUFFERS, IP4_ARP_ERROR_REQUEST_SENT, IP4_ARP_ERROR_NON_ARP_ADJ, IP4_ARP_ERROR_NO_SOURCE_ADDRESS, } ip4_arp_error_t; /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { mac_address_t mac; ip4_address_t ip4; }) ethernet_arp_ip4_over_ethernet_address_t; /* *INDENT-ON* */ STATIC_ASSERT (sizeof (ethernet_arp_ip4_over_ethernet_address_t) == 10, "Packet ethernet address and IP4 address too big"); typedef struct { u16 l2_type; u16 l3_type; u8 n_l2_address_bytes; u8 n_l3_address_bytes; u16 opcode; union { ethernet_arp_ip4_over_ethernet_address_t ip4_over_ethernet[2]; /* Others... */ u8 data[0]; }; } ethernet_arp_header_t; void send_ip4_garp (vlib_main_t * vm, u32 sw_if_index); void send_ip4_garp_w_addr (vlib_main_t * vm, const ip4_address_t * ip4_addr, u32 sw_if_index); #endif /* included_ethernet_arp_packet_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */