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Diffstat (limited to 'src/vnet/ip/icmp46_packet.h')
| -rw-r--r-- | src/vnet/ip/icmp46_packet.h | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/src/vnet/ip/icmp46_packet.h b/src/vnet/ip/icmp46_packet.h new file mode 100644 index 00000000000..a86cbd57bdb --- /dev/null +++ b/src/vnet/ip/icmp46_packet.h @@ -0,0 +1,398 @@ +/* + * 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) \ + _ (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; + +typedef CLIB_PACKED (struct + { + u8 type; + u8 code; + /* IP checksum of icmp header plus data which follows. */ + u16 checksum; + }) icmp46_header_t; + +/* 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; + +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 + { + ip6_hop_by_hop_ext_t ext_hdr; + ip6_router_alert_option_t alert; + ip6_padN_option_t pad; + icmp46_header_t icmp; + u16 rsvd; + u16 num_addr_records; + icmp6_multicast_address_record_t records[0]; + }) icmp6_multicast_listener_report_header_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; + +/* Router solicitation packet format for ethernet. */ +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_neighbor_discovery_header_t neighbor; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + link_layer_option; + }) icmp6_router_solicitation_header_t; + +/* router advertisement packet format for ethernet. */ +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_router_advertisement_header_t router; + icmp6_neighbor_discovery_ethernet_link_layer_address_option_t + link_layer_option; + icmp6_neighbor_discovery_mtu_option_t mtu_option; + icmp6_neighbor_discovery_prefix_information_option_t + prefix[0]; + }) icmp6_router_advertisement_packet_t; + +/* multicast listener report packet format for ethernet. */ +typedef CLIB_PACKED (struct + { + ip6_header_t ip; + icmp6_multicast_listener_report_header_t report_hdr; + }) icmp6_multicast_listener_report_packet_t; + +#endif /* included_vnet_icmp46_packet_h */ |