| /* |
| * 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. |
| */ |
| /* |
| * icmp46_packet.h: ip4/ip6 icmp packet format |
| * |
| * Copyright (c) 2008 Eliot Dresselhaus |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef included_vnet_icmp46_packet_h |
| #define included_vnet_icmp46_packet_h |
| |
| #include <vnet/ethernet/packet.h> |
| #include <vnet/ip/ip6_packet.h> |
| |
| #define foreach_icmp4_type \ |
| _ (0, echo_reply) \ |
| _ (3, destination_unreachable) \ |
| _ (4, source_quench) \ |
| _ (5, redirect) \ |
| _ (6, alternate_host_address) \ |
| _ (8, echo_request) \ |
| _ (9, router_advertisement) \ |
| _ (10, router_solicitation) \ |
| _ (11, time_exceeded) \ |
| _ (12, parameter_problem) \ |
| _ (13, timestamp_request) \ |
| _ (14, timestamp_reply) \ |
| _ (15, information_request) \ |
| _ (16, information_reply) \ |
| _ (17, address_mask_request) \ |
| _ (18, address_mask_reply) \ |
| _ (30, traceroute) \ |
| _ (31, datagram_conversion_error) \ |
| _ (32, mobile_host_redirect) \ |
| _ (33, ip6_where_are_you) \ |
| _ (34, ip6_i_am_here) \ |
| _ (35, mobile_registration_request) \ |
| _ (36, mobile_registration_reply) \ |
| _ (37, domain_name_request) \ |
| _ (38, domain_name_reply) \ |
| _ (39, skip) \ |
| _ (40, photuris) |
| |
| #define icmp_no_code 0 |
| |
| #define foreach_icmp4_code \ |
| _ (destination_unreachable, 0, destination_unreachable_net) \ |
| _ (destination_unreachable, 1, destination_unreachable_host) \ |
| _ (destination_unreachable, 2, protocol_unreachable) \ |
| _ (destination_unreachable, 3, port_unreachable) \ |
| _ (destination_unreachable, 4, fragmentation_needed_and_dont_fragment_set) \ |
| _ (destination_unreachable, 5, source_route_failed) \ |
| _ (destination_unreachable, 6, destination_network_unknown) \ |
| _ (destination_unreachable, 7, destination_host_unknown) \ |
| _ (destination_unreachable, 8, source_host_isolated) \ |
| _ (destination_unreachable, 9, network_administratively_prohibited) \ |
| _ (destination_unreachable, 10, host_administratively_prohibited) \ |
| _ (destination_unreachable, 11, network_unreachable_for_type_of_service) \ |
| _ (destination_unreachable, 12, host_unreachable_for_type_of_service) \ |
| _ (destination_unreachable, 13, communication_administratively_prohibited) \ |
| _ (destination_unreachable, 14, host_precedence_violation) \ |
| _ (destination_unreachable, 15, precedence_cutoff_in_effect) \ |
| _ (redirect, 0, network_redirect) \ |
| _ (redirect, 1, host_redirect) \ |
| _ (redirect, 2, type_of_service_and_network_redirect) \ |
| _ (redirect, 3, type_of_service_and_host_redirect) \ |
| _ (router_advertisement, 0, normal_router_advertisement) \ |
| _ (router_advertisement, 16, does_not_route_common_traffic) \ |
| _ (time_exceeded, 0, ttl_exceeded_in_transit) \ |
| _ (time_exceeded, 1, fragment_reassembly_time_exceeded) \ |
| _ (parameter_problem, 0, pointer_indicates_error) \ |
| _ (parameter_problem, 1, missing_required_option) \ |
| _ (parameter_problem, 2, bad_length) |
| |
| /* ICMPv6 */ |
| #define foreach_icmp6_type \ |
| _ (1, destination_unreachable) \ |
| _ (2, packet_too_big) \ |
| _ (3, time_exceeded) \ |
| _ (4, parameter_problem) \ |
| _ (128, echo_request) \ |
| _ (129, echo_reply) \ |
| _ (130, multicast_listener_request) \ |
| _ (131, multicast_listener_report) \ |
| _ (132, multicast_listener_done) \ |
| _ (133, router_solicitation) \ |
| _ (134, router_advertisement) \ |
| _ (135, neighbor_solicitation) \ |
| _ (136, neighbor_advertisement) \ |
| _ (137, redirect) \ |
| _ (138, router_renumbering) \ |
| _ (139, node_information_request) \ |
| _ (140, node_information_response) \ |
| _ (141, inverse_neighbor_solicitation) \ |
| _ (142, inverse_neighbor_advertisement) \ |
| _ (143, multicast_listener_report_v2) \ |
| _ (144, home_agent_address_discovery_request) \ |
| _ (145, home_agent_address_discovery_reply) \ |
| _ (146, mobile_prefix_solicitation) \ |
| _ (147, mobile_prefix_advertisement) \ |
| _ (148, certification_path_solicitation) \ |
| _ (149, certification_path_advertisement) \ |
| _ (151, multicast_router_advertisement) \ |
| _ (152, multicast_router_solicitation) \ |
| _ (153, multicast_router_termination) \ |
| _ (154, fmipv6_messages) |
| |
| #define foreach_icmp6_code \ |
| _ (destination_unreachable, 0, no_route_to_destination) \ |
| _ (destination_unreachable, 1, destination_administratively_prohibited) \ |
| _ (destination_unreachable, 2, beyond_scope_of_source_address) \ |
| _ (destination_unreachable, 3, address_unreachable) \ |
| _ (destination_unreachable, 4, port_unreachable) \ |
| _ (destination_unreachable, 5, source_address_failed_policy) \ |
| _ (destination_unreachable, 6, reject_route_to_destination) \ |
| _ (time_exceeded, 0, ttl_exceeded_in_transit) \ |
| _ (time_exceeded, 1, fragment_reassembly_time_exceeded) \ |
| _ (parameter_problem, 0, erroneous_header_field) \ |
| _ (parameter_problem, 1, unrecognized_next_header) \ |
| _ (parameter_problem, 2, unrecognized_option) \ |
| _ (parameter_problem, 3, first_fragment_has_incomplete_header_chain) \ |
| _ (router_renumbering, 0, command) \ |
| _ (router_renumbering, 1, result) \ |
| _ (node_information_request, 0, data_contains_ip6_address) \ |
| _ (node_information_request, 1, data_contains_name) \ |
| _ (node_information_request, 2, data_contains_ip4_address) \ |
| _ (node_information_response, 0, success) \ |
| _ (node_information_response, 1, failed) \ |
| _ (node_information_response, 2, unknown_request) |
| |
| typedef enum |
| { |
| #define _(n,f) ICMP4_##f = n, |
| foreach_icmp4_type |
| #undef _ |
| } icmp4_type_t; |
| |
| typedef enum |
| { |
| #define _(t,n,f) ICMP4_##t##_##f = n, |
| foreach_icmp4_code |
| #undef _ |
| } icmp4_code_t; |
| |
| typedef enum |
| { |
| #define _(n,f) ICMP6_##f = n, |
| foreach_icmp6_type |
| #undef _ |
| } icmp6_type_t; |
| |
| typedef enum |
| { |
| #define _(t,n,f) ICMP6_##t##_##f = n, |
| foreach_icmp6_code |
| #undef _ |
| } icmp6_code_t; |
| |
| /* *INDENT-OFF* */ |
| typedef CLIB_PACKED (struct |
| { |
| u8 type; |
| u8 code; |
| /* IP checksum of icmp header plus data which follows. */ |
| u16 checksum; |
| }) icmp46_header_t; |
| /* *INDENT-ON* */ |
| |
| /* ip6 neighbor discovery */ |
| #define foreach_icmp6_neighbor_discovery_option \ |
| _ (1, source_link_layer_address) \ |
| _ (2, target_link_layer_address) \ |
| _ (3, prefix_information) \ |
| _ (4, redirected_header) \ |
| _ (5, mtu) \ |
| _ (6, nbma_shortcut_limit) \ |
| _ (7, advertisement_interval) \ |
| _ (8, home_agent_information) \ |
| _ (9, source_address_list) \ |
| _ (10, target_address_list) \ |
| _ (11, cryptographically_generated_address) \ |
| _ (12, rsa_signature) \ |
| _ (13, timestamp) \ |
| _ (14, nonce) \ |
| _ (15, trust_anchor) \ |
| _ (16, certificate) \ |
| _ (17, ip_address_and_prefix) \ |
| _ (18, new_router_prefix_information) \ |
| _ (19, mobile_link_layer_address) \ |
| _ (20, neighbor_advertisement_acknowledgment) \ |
| _ (23, map) \ |
| _ (24, route_information) \ |
| _ (25, recursive_dns_server) \ |
| _ (26, ra_flags_extension) \ |
| _ (27, handover_key_request) \ |
| _ (28, handover_key_reply) \ |
| _ (29, handover_assist_information) \ |
| _ (30, mobile_node_identifier) \ |
| _ (31, dns_search_list) \ |
| _ (138, card_request) \ |
| _ (139, card_reply) |
| |
| typedef enum icmp6_neighbor_discovery_option_type |
| { |
| #define _(n,f) ICMP6_NEIGHBOR_DISCOVERY_OPTION_##f = n, |
| foreach_icmp6_neighbor_discovery_option |
| #undef _ |
| } icmp6_neighbor_discovery_option_type_t; |
| |
| /* *INDENT-OFF* */ |
| typedef CLIB_PACKED (struct |
| { |
| /* Option type. */ |
| u8 type; |
| /* Length of this header plus option data in 8 byte units. */ |
| u8 n_data_u64s; |
| /* Option data follows. */ |
| u8 data[0]; |
| }) icmp6_neighbor_discovery_option_header_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp6_neighbor_discovery_option_header_t header; |
| u8 dst_address_length; |
| u8 flags; |
| #define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK (1 << 7) |
| #define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO (1 << 6) |
| u32 valid_time; |
| u32 preferred_time; |
| u32 unused; ip6_address_t dst_address; |
| }) icmp6_neighbor_discovery_prefix_information_option_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| u8 type; |
| u8 aux_data_len_u32s; |
| u16 num_sources; |
| ip6_address_t mcast_addr; ip6_address_t source_addr[0]; |
| }) icmp6_multicast_address_record_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp6_neighbor_discovery_option_header_t header; |
| u8 reserved[6]; |
| /* IP6 header plus payload follows. */ |
| u8 data[0]; |
| }) icmp6_neighbor_discovery_redirected_header_option_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp6_neighbor_discovery_option_header_t header; |
| u16 unused; u32 mtu; |
| }) icmp6_neighbor_discovery_mtu_option_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp6_neighbor_discovery_option_header_t header; |
| u8 ethernet_address[6]; |
| }) icmp6_neighbor_discovery_ethernet_link_layer_address_option_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp6_neighbor_discovery_option_header_t header; |
| u8 max_l2_address[6 + 8]; |
| }) icmp6_neighbor_discovery_max_link_layer_address_option_t; |
| |
| /* Generic neighbor discover header. Used for router solicitations, |
| etc. */ |
| typedef CLIB_PACKED (struct |
| { |
| icmp46_header_t icmp; u32 reserved_must_be_zero; |
| }) icmp6_neighbor_discovery_header_t; |
| |
| /* Router advertisement packet formats. */ |
| typedef CLIB_PACKED (struct |
| { |
| icmp46_header_t icmp; |
| /* Current hop limit to use for outgoing packets. */ |
| u8 current_hop_limit; |
| u8 flags; |
| #define ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP (1 << 7) |
| #define ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP (1 << 6) |
| /* Zero means unspecified. */ |
| u16 router_lifetime_in_sec; |
| /* Zero means unspecified. */ |
| u32 neighbor_reachable_time_in_msec; |
| /* Zero means unspecified. */ |
| u32 |
| time_in_msec_between_retransmitted_neighbor_solicitations; |
| /* Options that may follow: source_link_layer_address, mtu, prefix_information. */ |
| }) icmp6_router_advertisement_header_t; |
| |
| /* Neighbor solicitation/advertisement header. */ |
| typedef CLIB_PACKED (struct |
| { |
| icmp46_header_t icmp; |
| /* Zero for solicitation; flags for advertisement. */ |
| u32 advertisement_flags; |
| /* Set when sent by a router. */ |
| #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_ROUTER (1 << 31) |
| /* Set when response to solicitation. */ |
| #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED (1 << 30) |
| #define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE (1 << 29) |
| ip6_address_t target_address; |
| /* Options that may follow: source_link_layer_address |
| (for solicitation) target_link_layer_address (for advertisement). */ |
| }) icmp6_neighbor_solicitation_or_advertisement_header_t; |
| |
| typedef CLIB_PACKED (struct |
| { |
| icmp46_header_t icmp; |
| u32 reserved_must_be_zero; |
| /* Better next hop to use for given destination. */ |
| ip6_address_t better_next_hop_address; |
| ip6_address_t dst_address; |
| /* Options that may follow: target_link_layer_address, |
| redirected_header. */ |
| }) icmp6_redirect_header_t; |
| |
| /* Solicitation/advertisement packet format for ethernet. */ |
| typedef CLIB_PACKED (struct |
| { |
| ip6_header_t ip; |
| icmp6_neighbor_solicitation_or_advertisement_header_t |
| neighbor; |
| icmp6_neighbor_discovery_ethernet_link_layer_address_option_t |
| link_layer_option; |
| }) icmp6_neighbor_solicitation_header_t; |
| /* *INDENT-ON* */ |
| |
| #endif /* included_vnet_icmp46_packet_h */ |