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Diffstat (limited to 'src/vnet/ethernet/arp_packet.h')
| -rw-r--r-- | src/vnet/ethernet/arp_packet.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/vnet/ethernet/arp_packet.h b/src/vnet/ethernet/arp_packet.h new file mode 100644 index 00000000000..e762ffa4018 --- /dev/null +++ b/src/vnet/ethernet/arp_packet.h @@ -0,0 +1,173 @@ +/* + * 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 + +#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_DROP, + IP4_ARP_ERROR_REQUEST_SENT, + IP4_ARP_ERROR_NON_ARP_ADJ, + IP4_ARP_ERROR_REPLICATE_DROP, + IP4_ARP_ERROR_REPLICATE_FAIL, + IP4_ARP_ERROR_NO_SOURCE_ADDRESS, +} ip4_arp_error_t; + +/* *INDENT-OFF* */ +typedef CLIB_PACKED (struct { + u8 ethernet[6]; + ip4_address_t ip4; +}) ethernet_arp_ip4_over_ethernet_address_t; +/* *INDENT-ON* */ + +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; + +typedef struct +{ + u32 sw_if_index; + ip4_address_t ip4_address; + + u8 ethernet_address[6]; + + u16 flags; +#define ETHERNET_ARP_IP4_ENTRY_FLAG_STATIC (1 << 0) +#define ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC (1 << 1) + + u64 cpu_time_last_updated; + + /** + * The index of the adj-fib entry created + */ + fib_node_index_t fib_entry_index; +} ethernet_arp_ip4_entry_t; + +ethernet_arp_ip4_entry_t *ip4_neighbor_entries (u32 sw_if_index); +u8 *format_ethernet_arp_ip4_entry (u8 * s, va_list * va); + +#endif /* included_ethernet_arp_packet_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |