/* packet-asap.c * Routines for Aggregate Server Access Protocol (ASAP) * It is hopefully (needs testing) compliant to * RFC 5352 * RFC 5354 * RFC 5356 * https://tools.ietf.org/html/draft-dreibholz-rserpool-asap-hropt-27 * https://tools.ietf.org/html/draft-dreibholz-rserpool-delay-26 * * Copyright 2008-2021 Thomas Dreibholz * Copyright 2004-2007 Michael Tüxen * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * Copied from README.developer * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include #include #include #include #include "packet-asap+enrp-common.h" void proto_register_asap(void); void proto_reg_handoff_asap(void); static dissector_handle_t asap_handle; /* Initialize the protocol and registered fields */ static int asap_tap; static int proto_asap; static int hf_cause_code; static int hf_cause_length; static int hf_cause_info; static int hf_cause_padding; static int hf_message_type; static int hf_message_flags; static int hf_message_length; static int hf_parameter_type; static int hf_parameter_length; static int hf_parameter_value; static int hf_parameter_padding; static int hf_parameter_ipv4_address; static int hf_parameter_ipv6_address; static int hf_dccp_port; static int hf_dccp_reserved; static int hf_dccp_service_code; static int hf_sctp_port; static int hf_transport_use; static int hf_tcp_port; static int hf_udp_port; static int hf_udp_reserved; static int hf_udp_lite_port; static int hf_udp_lite_reserved; static int hf_policy_type; static int hf_policy_value; static int hf_policy_weight; static int hf_policy_priority; static int hf_policy_load; static int hf_policy_degradation; static int hf_policy_loaddpf; static int hf_policy_weightdpf; static int hf_policy_distance; static int hf_pool_handle; static int hf_pe_pe_identifier; static int hf_home_enrp_id; static int hf_reg_life; static int hf_server_identifier; static int hf_cookie; static int hf_pe_identifier; static int hf_pe_checksum; static int hf_hropt_items; static int hf_home_enrp_server_bit; static int hf_reject_bit; /* Initialize the subtree pointers */ static int ett_asap; static int ett_asap_parameter; static int ett_asap_cause; static int ett_asap_flags; static uint64_t asap_total_msgs; static uint64_t asap_total_bytes; static void dissect_parameters(tvbuff_t *, packet_info *, proto_tree *); static void dissect_parameter(tvbuff_t *, packet_info *, proto_tree *); static int dissect_asap(tvbuff_t *, packet_info *, proto_tree *, void *); #define ASAP_UDP_PORT 3863 #define ASAP_TCP_PORT 3863 #define ASAP_SCTP_PORT 3863 typedef struct _asap_tap_rec_t { uint8_t type; uint16_t size; const char* type_string; } asap_tap_rec_t; /* Dissectors for error causes. This is common for ASAP and ENRP. */ static void dissect_unknown_cause(tvbuff_t *cause_tvb, proto_tree *cause_tree, proto_item *cause_item) { uint16_t code, length, cause_info_length; code = tvb_get_ntohs(cause_tvb, CAUSE_CODE_OFFSET); length = tvb_get_ntohs(cause_tvb, CAUSE_LENGTH_OFFSET); cause_info_length = length - CAUSE_HEADER_LENGTH; if (cause_info_length > 0) proto_tree_add_item(cause_tree, hf_cause_info, cause_tvb, CAUSE_INFO_OFFSET, cause_info_length, ENC_NA); proto_item_append_text(cause_item, " (code %u and %u byte%s information)", code, cause_info_length, plurality(cause_info_length, "", "s")); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_error_cause(tvbuff_t *cause_tvb, packet_info *pinfo, proto_tree *parameter_tree) { uint16_t code, length, padding_length; proto_item *cause_item; proto_tree *cause_tree; tvbuff_t *parameter_tvb, *message_tvb; pinfo->flags.in_error_pkt = true; code = tvb_get_ntohs(cause_tvb, CAUSE_CODE_OFFSET); length = tvb_get_ntohs(cause_tvb, CAUSE_LENGTH_OFFSET); padding_length = tvb_reported_length(cause_tvb) - length; cause_tree = proto_tree_add_subtree(parameter_tree, cause_tvb, CAUSE_HEADER_OFFSET, -1, ett_asap_cause, &cause_item, val_to_str_const(code, cause_code_values, "Unknown error cause")); proto_tree_add_item(cause_tree, hf_cause_code, cause_tvb, CAUSE_CODE_OFFSET, CAUSE_CODE_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(cause_tree, hf_cause_length, cause_tvb, CAUSE_LENGTH_OFFSET, CAUSE_LENGTH_LENGTH, ENC_BIG_ENDIAN); switch(code) { case UNRECOGNIZED_PARAMETER_CAUSE_CODE: parameter_tvb = tvb_new_subset_remaining(cause_tvb, CAUSE_INFO_OFFSET); dissect_parameter(parameter_tvb, pinfo, cause_tree); break; case UNRECONGNIZED_MESSAGE_CAUSE_CODE: message_tvb = tvb_new_subset_remaining(cause_tvb, CAUSE_INFO_OFFSET); dissect_asap(message_tvb, pinfo, cause_tree, NULL); break; case INVALID_VALUES: parameter_tvb = tvb_new_subset_remaining(cause_tvb, CAUSE_INFO_OFFSET); dissect_parameter(parameter_tvb, pinfo, cause_tree); break; case NON_UNIQUE_PE_IDENTIFIER: break; case POOLING_POLICY_INCONSISTENT_CAUSE_CODE: parameter_tvb = tvb_new_subset_remaining(cause_tvb, CAUSE_INFO_OFFSET); dissect_parameter(parameter_tvb, pinfo, cause_tree); break; case LACK_OF_RESOURCES_CAUSE_CODE: break; case INCONSISTENT_TRANSPORT_TYPE_CAUSE_CODE: parameter_tvb = tvb_new_subset_remaining(cause_tvb, CAUSE_INFO_OFFSET); dissect_parameter(parameter_tvb, pinfo, cause_tree); break; case INCONSISTENT_DATA_CONTROL_CONFIGURATION_CAUSE_CODE: break; case UNKNOWN_POOL_HANDLE: break; case REJECTION_DUE_TO_SECURITY_CAUSE_CODE: break; default: dissect_unknown_cause(cause_tvb, cause_tree, cause_item); break; } if (padding_length > 0) proto_tree_add_item(cause_tree, hf_cause_padding, cause_tvb, CAUSE_HEADER_OFFSET + length, padding_length, ENC_NA); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_error_causes(tvbuff_t *error_causes_tvb, packet_info *pinfo, proto_tree *parameter_tree) { uint16_t length, total_length; int offset; tvbuff_t *error_cause_tvb; offset = 0; while(tvb_reported_length_remaining(error_causes_tvb, offset) > 0) { length = tvb_get_ntohs(error_causes_tvb, offset + CAUSE_LENGTH_OFFSET); total_length = WS_ROUNDUP_4(length); error_cause_tvb = tvb_new_subset_length(error_causes_tvb, offset , total_length); dissect_error_cause(error_cause_tvb, pinfo, parameter_tree); offset += total_length; } } /* Dissectors for parameters. This is common for ASAP and ENRP. */ static void dissect_ipv4_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { proto_tree_add_item(parameter_tree, hf_parameter_ipv4_address, parameter_tvb, IPV4_ADDRESS_OFFSET, IPV4_ADDRESS_LENGTH, ENC_BIG_ENDIAN); proto_item_append_text(parameter_item, " (%s)", tvb_ip_to_str(wmem_packet_scope(), parameter_tvb, IPV4_ADDRESS_OFFSET)); } static void dissect_ipv6_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { proto_tree_add_item(parameter_tree, hf_parameter_ipv6_address, parameter_tvb, IPV6_ADDRESS_OFFSET, IPV6_ADDRESS_LENGTH, ENC_NA); proto_item_append_text(parameter_item, " (%s)", tvb_ip6_to_str(wmem_packet_scope(), parameter_tvb, IPV6_ADDRESS_OFFSET)); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_dccp_transport_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_dccp_port, parameter_tvb, DCCP_PORT_OFFSET, DCCP_PORT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_dccp_reserved, parameter_tvb, DCCP_RESERVED_OFFSET, DCCP_RESERVED_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_dccp_service_code, parameter_tvb, DCCP_SERVICE_CODE_OFFSET, DCCP_SERVICE_CODE_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, DCCP_ADDRESS_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_sctp_transport_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_sctp_port, parameter_tvb, SCTP_PORT_OFFSET, SCTP_PORT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_transport_use, parameter_tvb, SCTP_TRANSPORT_USE_OFFSET, SCTP_TRANSPORT_USE_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, SCTP_ADDRESS_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_tcp_transport_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_tcp_port, parameter_tvb, TCP_PORT_OFFSET, TCP_PORT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_transport_use, parameter_tvb, TCP_TRANSPORT_USE_OFFSET, TCP_TRANSPORT_USE_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, TCP_ADDRESS_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_udp_transport_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_udp_port, parameter_tvb, UDP_PORT_OFFSET, UDP_PORT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_udp_reserved, parameter_tvb, UDP_RESERVED_OFFSET, UDP_RESERVED_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, UDP_ADDRESS_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_udp_lite_transport_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_udp_lite_port, parameter_tvb, UDP_LITE_PORT_OFFSET, UDP_LITE_PORT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_udp_lite_reserved, parameter_tvb, UDP_LITE_RESERVED_OFFSET, UDP_LITE_RESERVED_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, UDP_LITE_ADDRESS_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void dissect_pool_member_selection_policy_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree) { uint32_t type; unsigned length; proto_tree_add_item(parameter_tree, hf_policy_type, parameter_tvb, POLICY_TYPE_OFFSET, POLICY_TYPE_LENGTH, ENC_BIG_ENDIAN); type = tvb_get_ntohl(parameter_tvb, POLICY_TYPE_OFFSET); switch (type) { case RANDOM_POLICY: case ROUND_ROBIN_POLICY: break; case WEIGHTED_RANDOM_POLICY: case WEIGHTED_ROUND_ROBIN_POLICY: proto_tree_add_item(parameter_tree, hf_policy_weight, parameter_tvb, POLICY_WEIGHT_OFFSET, POLICY_WEIGHT_LENGTH, ENC_BIG_ENDIAN); break; case PRIORITY_POLICY: proto_tree_add_item(parameter_tree, hf_policy_priority, parameter_tvb, POLICY_PRIORITY_OFFSET, POLICY_PRIORITY_LENGTH, ENC_BIG_ENDIAN); break; case LEAST_USED_POLICY: case RANDOMIZED_LEAST_USED_POLICY: proto_tree_add_double_format_value(parameter_tree, hf_policy_load, parameter_tvb, POLICY_LOAD_OFFSET, POLICY_LOAD_LENGTH, 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff, "%1.2f%%", 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff); break; case LEAST_USED_WITH_DEG_POLICY: case PRIORITY_LEAST_USED_POLICY: proto_tree_add_double_format_value(parameter_tree, hf_policy_load, parameter_tvb, POLICY_LOAD_OFFSET, POLICY_LOAD_LENGTH, 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff, "%1.2f%%", 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff); proto_tree_add_double_format_value(parameter_tree, hf_policy_degradation, parameter_tvb, POLICY_DEGRADATION_OFFSET, POLICY_DEGRADATION_LENGTH, 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_DEGRADATION_OFFSET) / (double)0xffffffff, "%1.2f%%", 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_DEGRADATION_OFFSET) / (double)0xffffffff); break; case LEAST_USED_DPF_POLICY: proto_tree_add_double_format_value(parameter_tree, hf_policy_load, parameter_tvb, POLICY_LOAD_OFFSET, POLICY_LOAD_LENGTH, 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff, "%1.2f%%", 100.0 * tvb_get_ntohl(parameter_tvb, POLICY_LOAD_OFFSET) / (double)0xffffffff); proto_tree_add_double_format_value(parameter_tree, hf_policy_loaddpf, parameter_tvb, POLICY_LUDPF_LOADDPF_OFFSET, POLICY_LUDPF_LOADDPF_LENGTH, tvb_get_ntohl(parameter_tvb, POLICY_LUDPF_LOADDPF_OFFSET) / (double)0xffffffff, "%1.5f", tvb_get_ntohl(parameter_tvb, POLICY_LUDPF_LOADDPF_OFFSET) / (double)0xffffffff); proto_tree_add_item(parameter_tree, hf_policy_distance, parameter_tvb, POLICY_LUDPF_DISTANCE_OFFSET, POLICY_LUDPF_DISTANCE_LENGTH, ENC_BIG_ENDIAN); break; case WEIGHTED_RANDOM_DPF_POLICY: proto_tree_add_item(parameter_tree, hf_policy_weight, parameter_tvb, POLICY_WEIGHT_OFFSET, POLICY_WEIGHT_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_double_format_value(parameter_tree, hf_policy_weightdpf, parameter_tvb, POLICY_WRANDDPF_WEIGHTDPF_OFFSET, POLICY_WRANDDPF_WEIGHTDPF_LENGTH, tvb_get_ntohl(parameter_tvb, POLICY_WRANDDPF_WEIGHTDPF_OFFSET) / (double)0xffffffff, "%1.5f", tvb_get_ntohl(parameter_tvb, POLICY_WRANDDPF_WEIGHTDPF_OFFSET) / (double)0xffffffff); proto_tree_add_item(parameter_tree, hf_policy_distance, parameter_tvb, POLICY_WRANDDPF_DISTANCE_OFFSET, POLICY_WRANDDPF_DISTANCE_LENGTH, ENC_BIG_ENDIAN); break; default: length = tvb_reported_length(parameter_tvb) - POLICY_VALUE_OFFSET; if (length > 0) { proto_tree_add_item(parameter_tree, hf_policy_value, parameter_tvb, POLICY_VALUE_OFFSET, length, ENC_NA); } break; } } static void dissect_pool_handle_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree) { uint16_t handle_length; proto_item* pi; handle_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; pi = proto_tree_add_item(parameter_tree, hf_pool_handle, parameter_tvb, POOL_HANDLE_OFFSET, handle_length, ENC_NA); proto_item_append_text(pi, " (%s)", tvb_format_text(wmem_packet_scope(), parameter_tvb, POOL_HANDLE_OFFSET, handle_length)); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_pool_element_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t* parameters_tvb; proto_tree_add_item(parameter_tree, hf_pe_pe_identifier, parameter_tvb, PE_PE_IDENTIFIER_OFFSET, PE_PE_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_home_enrp_id, parameter_tvb, HOME_ENRP_INDENTIFIER_OFFSET, HOME_ENRP_INDENTIFIER_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_reg_life, parameter_tvb, REGISTRATION_LIFE_OFFSET, REGISTRATION_LIFE_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, USER_TRANSPORT_PARAMETER_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_server_information_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *parameters_tvb; proto_tree_add_item(parameter_tree, hf_server_identifier, parameter_tvb, SERVER_ID_OFFSET, SERVER_ID_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(parameter_tvb, SERVER_TRANSPORT_OFFSET); dissect_parameters(parameters_tvb, pinfo, parameter_tree); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_operation_error_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree) { tvbuff_t *error_causes_tvb; error_causes_tvb = tvb_new_subset_remaining(parameter_tvb, ERROR_CAUSES_OFFSET); dissect_error_causes(error_causes_tvb, pinfo, parameter_tree); } static void dissect_cookie_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { uint16_t cookie_length; cookie_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; if (cookie_length > 0) proto_tree_add_item(parameter_tree, hf_cookie, parameter_tvb, COOKIE_OFFSET, cookie_length, ENC_NA); proto_item_append_text(parameter_item, " (%u byte%s)", cookie_length, plurality(cookie_length, "", "s")); } static void dissect_pe_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { proto_tree_add_item(parameter_tree, hf_pe_identifier, parameter_tvb, PE_IDENTIFIER_OFFSET, PE_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN); proto_item_append_text(parameter_item, " (0x%x)", tvb_get_ntohl(parameter_tvb, PE_IDENTIFIER_OFFSET)); } static void dissect_pe_checksum_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { proto_tree_add_checksum(parameter_tree, parameter_tvb, PE_CHECKSUM_OFFSET, hf_pe_checksum, -1, NULL, NULL, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); proto_item_append_text(parameter_item, " (0x%x)", tvb_get_ntohs(parameter_tvb, PE_CHECKSUM_OFFSET)); } static void dissect_handle_resolution_option_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree) { proto_tree_add_item(parameter_tree, hf_hropt_items, parameter_tvb, HROPT_ITEMS_OFFSET, HROPT_ITEMS_LENGTH, ENC_BIG_ENDIAN); } static void dissect_unknown_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item) { uint16_t type, parameter_value_length; type = tvb_get_ntohs(parameter_tvb, PARAMETER_TYPE_OFFSET); parameter_value_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH; if (parameter_value_length > 0) proto_tree_add_item(parameter_tree, hf_parameter_value, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length, ENC_NA); proto_item_append_text(parameter_item, " (type %u and %u byte%s value)", type, parameter_value_length, plurality(parameter_value_length, "", "s")); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *asap_tree) { uint16_t type, length, padding_length; proto_item *parameter_item; proto_tree *parameter_tree; /* extract tag and length from the parameter */ type = tvb_get_ntohs(parameter_tvb, PARAMETER_TYPE_OFFSET); length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET); padding_length = tvb_reported_length(parameter_tvb) - length; /* create proto_tree stuff */ parameter_tree = proto_tree_add_subtree(asap_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_asap_parameter, ¶meter_item, val_to_str_const(type, parameter_type_values, "Unknown Parameter")); /* add tag and length to the asap tree */ proto_tree_add_item(parameter_tree, hf_parameter_type, parameter_tvb, PARAMETER_TYPE_OFFSET, PARAMETER_TYPE_LENGTH, ENC_BIG_ENDIAN); proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN); increment_dissection_depth(pinfo); switch(type) { case IPV4_ADDRESS_PARAMETER_TYPE: dissect_ipv4_parameter(parameter_tvb, parameter_tree, parameter_item); break; case IPV6_ADDRESS_PARAMETER_TYPE: dissect_ipv6_parameter(parameter_tvb, parameter_tree, parameter_item); break; case DCCP_TRANSPORT_PARAMETER_TYPE: dissect_dccp_transport_parameter(parameter_tvb, pinfo, parameter_tree); break; case SCTP_TRANSPORT_PARAMETER_TYPE: dissect_sctp_transport_parameter(parameter_tvb, pinfo, parameter_tree); break; case TCP_TRANSPORT_PARAMETER_TYPE: dissect_tcp_transport_parameter(parameter_tvb, pinfo, parameter_tree); break; case UDP_TRANSPORT_PARAMETER_TYPE: dissect_udp_transport_parameter(parameter_tvb, pinfo, parameter_tree); break; case UDP_LITE_TRANSPORT_PARAMETER_TYPE: dissect_udp_lite_transport_parameter(parameter_tvb, pinfo, parameter_tree); break; case POOL_MEMBER_SELECTION_POLICY_PARAMETER_TYPE: dissect_pool_member_selection_policy_parameter(parameter_tvb, parameter_tree); break; case POOL_HANDLE_PARAMETER_TYPE: dissect_pool_handle_parameter(parameter_tvb, parameter_tree); break; case POOL_ELEMENT_PARAMETER_TYPE: dissect_pool_element_parameter(parameter_tvb, pinfo, parameter_tree); break; case SERVER_INFORMATION_PARAMETER_TYPE: dissect_server_information_parameter(parameter_tvb, pinfo, parameter_tree); break; case OPERATION_ERROR_PARAMETER_TYPE: dissect_operation_error_parameter(parameter_tvb, pinfo, parameter_tree); break; case COOKIE_PARAMETER_TYPE: dissect_cookie_parameter(parameter_tvb, parameter_tree, parameter_item); break; case PE_IDENTIFIER_PARAMETER_TYPE: dissect_pe_identifier_parameter(parameter_tvb, parameter_tree, parameter_item); break; case PE_CHECKSUM_PARAMETER_TYPE: dissect_pe_checksum_parameter(parameter_tvb, parameter_tree, parameter_item); break; case HANDLE_RESOLUTION_OPTION_PARAMETER_TYPE: dissect_handle_resolution_option_parameter(parameter_tvb, parameter_tree); break; default: dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item); break; }; decrement_dissection_depth(pinfo); if (padding_length > 0) proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA); } static void // NOLINTNEXTLINE(misc-no-recursion) dissect_parameters(tvbuff_t *parameters_tvb, packet_info *pinfo, proto_tree *tree) { int offset, length, total_length, remaining_length; tvbuff_t *parameter_tvb; offset = 0; while((remaining_length = tvb_reported_length_remaining(parameters_tvb, offset)) > 0) { length = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_LENGTH_OFFSET); total_length = WS_ROUNDUP_4(length); if (remaining_length >= length) total_length = MIN(total_length, remaining_length); /* create a tvb for the parameter including the padding bytes */ parameter_tvb = tvb_new_subset_length(parameters_tvb, offset, total_length); dissect_parameter(parameter_tvb, pinfo, tree); /* get rid of the handled parameter */ offset += total_length; } } /* Dissectors for messages. This is specific to ASAP */ #define REGISTRATION_MESSAGE_TYPE 0x01 #define DEREGISTRATION_MESSAGE_TYPE 0x02 #define REGISTRATION_RESPONSE_MESSAGE_TYPE 0x03 #define DEREGISTRATION_RESPONSE_MESSAGE_TYPE 0x04 #define HANDLE_RESOLUTION_MESSAGE_TYPE 0x05 #define HANDLE_RESOLUTION_RESPONSE_MESSAGE_TYPE 0x06 #define ENDPOINT_KEEP_ALIVE_MESSAGE_TYPE 0x07 #define ENDPOINT_KEEP_ALIVE_ACK_MESSAGE_TYPE 0x08 #define ENDPOINT_UNREACHABLE_MESSAGE_TYPE 0x09 #define SERVER_ANNOUNCE_MESSAGE_TYPE 0x0a #define COOKIE_MESSAGE_TYPE 0x0b #define COOKIE_ECHO_MESSAGE_TYPE 0x0c #define BUSINESS_CARD_MESSAGE_TYPE 0x0d #define ERROR_MESSAGE_TYPE 0x0e static const value_string message_type_values[] = { { REGISTRATION_MESSAGE_TYPE, "ASAP Registration" }, { DEREGISTRATION_MESSAGE_TYPE, "ASAP Deregistration" }, { REGISTRATION_RESPONSE_MESSAGE_TYPE, "ASAP Registration Response" }, { DEREGISTRATION_RESPONSE_MESSAGE_TYPE, "ASAP Deregistration Response" }, { HANDLE_RESOLUTION_MESSAGE_TYPE, "ASAP Handle Resolution" }, { HANDLE_RESOLUTION_RESPONSE_MESSAGE_TYPE, "ASAP Handle Resolution Response" }, { ENDPOINT_KEEP_ALIVE_MESSAGE_TYPE, "ASAP Endpoint Keep-Alive" }, { ENDPOINT_KEEP_ALIVE_ACK_MESSAGE_TYPE, "ASAP Endpoint Keep-Alive Acknowledgement" }, { ENDPOINT_UNREACHABLE_MESSAGE_TYPE, "ASAP Endpoint Unreachable" }, { SERVER_ANNOUNCE_MESSAGE_TYPE, "ASAP Server Announce" }, { COOKIE_MESSAGE_TYPE, "ASAP Cookie" }, { COOKIE_ECHO_MESSAGE_TYPE, "ASAP Cookie Echo" }, { BUSINESS_CARD_MESSAGE_TYPE, "ASAP Business Card" }, { ERROR_MESSAGE_TYPE, "ASAP Error" }, { 0, NULL } }; #define SERVER_IDENTIFIER_OFFSET MESSAGE_VALUE_OFFSET #define SERVER_IDENTIFIER_LENGTH 4 #define HOME_ENRP_SERVER_BIT_MASK 0x01 #define REJECT_BIT_MASK 0x01 static const true_false_string home_enrp_server_bit_value = { "Want to be new ENRP server", "Do not want to be new ENRP server" }; static const true_false_string reject_bit_value = { "Rejected", "Accepted" }; static void // NOLINTNEXTLINE(misc-no-recursion) dissect_asap_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *asap_tree) { asap_tap_rec_t *tap_rec; tvbuff_t *parameters_tvb; proto_item *flags_item; proto_tree *flags_tree; uint8_t type; type = tvb_get_uint8(message_tvb, MESSAGE_TYPE_OFFSET); /* pinfo is NULL only if dissect_asap_message is called via dissect_error_cause */ if (!pinfo->flags.in_error_pkt) { tap_rec = wmem_new0(pinfo->pool, asap_tap_rec_t); tap_rec->type = type; tap_rec->size = tvb_get_ntohs(message_tvb, MESSAGE_LENGTH_OFFSET); tap_rec->type_string = val_to_str_const(tap_rec->type, message_type_values, "Unknown ASAP type"); tap_queue_packet(asap_tap, pinfo, tap_rec); col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(type, message_type_values, "Unknown ASAP type")); } if (asap_tree) { proto_tree_add_item(asap_tree, hf_message_type, message_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, ENC_BIG_ENDIAN); flags_item = proto_tree_add_item(asap_tree, hf_message_flags, message_tvb, MESSAGE_FLAGS_OFFSET, MESSAGE_FLAGS_LENGTH, ENC_BIG_ENDIAN); flags_tree = proto_item_add_subtree(flags_item, ett_asap_flags); if (type == REGISTRATION_RESPONSE_MESSAGE_TYPE) { proto_tree_add_item(flags_tree, hf_reject_bit, message_tvb, MESSAGE_FLAGS_OFFSET, MESSAGE_FLAGS_LENGTH, ENC_BIG_ENDIAN); } if (type == ENDPOINT_KEEP_ALIVE_MESSAGE_TYPE) { proto_tree_add_item(flags_tree, hf_home_enrp_server_bit, message_tvb, MESSAGE_FLAGS_OFFSET, MESSAGE_FLAGS_LENGTH, ENC_BIG_ENDIAN); } proto_tree_add_item(asap_tree, hf_message_length, message_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, ENC_BIG_ENDIAN); if ((type == SERVER_ANNOUNCE_MESSAGE_TYPE) || (type == ENDPOINT_KEEP_ALIVE_MESSAGE_TYPE)) { proto_tree_add_item(asap_tree, hf_server_identifier, message_tvb, SERVER_IDENTIFIER_OFFSET, SERVER_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN); parameters_tvb = tvb_new_subset_remaining(message_tvb, MESSAGE_VALUE_OFFSET + SERVER_IDENTIFIER_LENGTH); } else { parameters_tvb = tvb_new_subset_remaining(message_tvb, MESSAGE_VALUE_OFFSET); } dissect_parameters(parameters_tvb, pinfo, asap_tree); } } static int // NOLINTNEXTLINE(misc-no-recursion) dissect_asap(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_item *asap_item; proto_tree *asap_tree; /* pinfo is NULL only if dissect_asap is called from dissect_error_cause */ if (!pinfo->flags.in_error_pkt) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "ASAP"); } /* create the asap protocol tree */ asap_item = proto_tree_add_item(tree, proto_asap, message_tvb, 0, -1, ENC_NA); asap_tree = proto_item_add_subtree(asap_item, ett_asap); /* dissect the message */ dissect_asap_message(message_tvb, pinfo, asap_tree); return tvb_captured_length(message_tvb); } /* TAP STAT INFO */ typedef enum { MESSAGE_TYPE_COLUMN = 0, MESSAGES_COLUMN, MESSAGES_SHARE_COLUMN, BYTES_COLUMN, BYTES_SHARE_COLUMN, FIRST_SEEN_COLUMN, LAST_SEEN_COLUMN, INTERVAL_COLUMN, MESSAGE_RATE_COLUMN, BYTE_RATE_COLUMN } asap_stat_columns; static stat_tap_table_item asap_stat_fields[] = { { TABLE_ITEM_STRING, TAP_ALIGN_LEFT, "ASAP Message Type", "%-25s" }, { TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Messages ", "%u" }, { TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Messages Share (%)" , "%1.3f %%" }, { TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Bytes (B)", "%u" }, { TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Bytes Share (%) ", "%1.3f %%" }, { TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "First Seen (s)", "%1.6f" }, { TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Last Seen (s)", "%1.6f" }, { TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Interval (s)", "%1.6f" }, { TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Message Rate (Msg/s)", "%1.2f" }, { TABLE_ITEM_FLOAT, TAP_ALIGN_LEFT, "Byte Rate (B/s)", "%1.2f" } }; static void asap_stat_init(stat_tap_table_ui* new_stat) { const char *table_name = "ASAP Statistics"; int num_fields = array_length(asap_stat_fields); stat_tap_table *table; int i = 0; stat_tap_table_item_type items[array_length(asap_stat_fields)]; table = stat_tap_find_table(new_stat, table_name); if (table) { if (new_stat->stat_tap_reset_table_cb) { new_stat->stat_tap_reset_table_cb(table); } return; } table = stat_tap_init_table(table_name, num_fields, 0, NULL); stat_tap_add_table(new_stat, table); memset(items, 0x0, sizeof(items)); /* Add a row for each value type */ while (message_type_values[i].strptr) { items[MESSAGE_TYPE_COLUMN].type = TABLE_ITEM_STRING; items[MESSAGE_TYPE_COLUMN].value.string_value = message_type_values[i].strptr; items[MESSAGES_COLUMN].type = TABLE_ITEM_UINT; items[MESSAGES_COLUMN].value.uint_value = 0; items[MESSAGES_SHARE_COLUMN].type = TABLE_ITEM_NONE; items[MESSAGES_SHARE_COLUMN].value.float_value = -1.0; items[BYTES_COLUMN].type = TABLE_ITEM_UINT; items[BYTES_COLUMN].value.uint_value = 0; items[BYTES_SHARE_COLUMN].type = TABLE_ITEM_NONE; items[BYTES_SHARE_COLUMN].value.float_value = -1.0; items[FIRST_SEEN_COLUMN].type = TABLE_ITEM_NONE; items[FIRST_SEEN_COLUMN].value.float_value = DBL_MAX; items[LAST_SEEN_COLUMN].type = TABLE_ITEM_NONE; items[LAST_SEEN_COLUMN].value.float_value = DBL_MIN; items[INTERVAL_COLUMN].type = TABLE_ITEM_NONE; items[INTERVAL_COLUMN].value.float_value = -1.0; items[MESSAGE_RATE_COLUMN].type = TABLE_ITEM_NONE; items[MESSAGE_RATE_COLUMN].value.float_value = -1.0; items[BYTE_RATE_COLUMN].type = TABLE_ITEM_NONE; items[BYTE_RATE_COLUMN].value.float_value = -1.0; stat_tap_init_table_row(table, i, num_fields, items); i++; } } static tap_packet_status asap_stat_packet(void* tapdata, packet_info* pinfo _U_, epan_dissect_t* edt _U_, const void* data, tap_flags_t flags _U_) { stat_data_t* stat_data = (stat_data_t*)tapdata; const asap_tap_rec_t* tap_rec = (const asap_tap_rec_t*)data; stat_tap_table* table; stat_tap_table_item_type* msg_data; int idx; uint64_t messages; uint64_t bytes; int i = 0; double firstSeen = -1.0; double lastSeen = -1.0; idx = str_to_val_idx(tap_rec->type_string, message_type_values); if (idx < 0) return TAP_PACKET_DONT_REDRAW; table = g_array_index(stat_data->stat_tap_data->tables, stat_tap_table*, 0); /* Update packets counter */ asap_total_msgs++; msg_data = stat_tap_get_field_data(table, idx, MESSAGES_COLUMN); msg_data->value.uint_value++; messages = msg_data->value.uint_value; stat_tap_set_field_data(table, idx, MESSAGES_COLUMN, msg_data); /* Update bytes counter */ asap_total_bytes += tap_rec->size; msg_data = stat_tap_get_field_data(table, idx, BYTES_COLUMN); msg_data->value.uint_value += tap_rec->size; bytes = msg_data->value.uint_value; stat_tap_set_field_data(table, idx, BYTES_COLUMN, msg_data); /* Update messages and bytes share */ while (message_type_values[i].strptr) { msg_data = stat_tap_get_field_data(table, i, MESSAGES_COLUMN); const unsigned m = msg_data->value.uint_value; msg_data = stat_tap_get_field_data(table, i, BYTES_COLUMN); const unsigned b = msg_data->value.uint_value; msg_data = stat_tap_get_field_data(table, i, MESSAGES_SHARE_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = 100.0 * m / (double)asap_total_msgs; stat_tap_set_field_data(table, i, MESSAGES_SHARE_COLUMN, msg_data); msg_data = stat_tap_get_field_data(table, i, BYTES_SHARE_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = 100.0 * b / (double)asap_total_bytes; stat_tap_set_field_data(table, i, BYTES_SHARE_COLUMN, msg_data); i++; } /* Update first seen time */ if (pinfo->presence_flags & PINFO_HAS_TS) { msg_data = stat_tap_get_field_data(table, idx, FIRST_SEEN_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = MIN(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts)); firstSeen = msg_data->value.float_value; stat_tap_set_field_data(table, idx, FIRST_SEEN_COLUMN, msg_data); } /* Update last seen time */ if (pinfo->presence_flags & PINFO_HAS_TS) { msg_data = stat_tap_get_field_data(table, idx, LAST_SEEN_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = MAX(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts)); lastSeen = msg_data->value.float_value; stat_tap_set_field_data(table, idx, LAST_SEEN_COLUMN, msg_data); } if ((lastSeen - firstSeen) > 0.0) { /* Update interval */ msg_data = stat_tap_get_field_data(table, idx, INTERVAL_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = lastSeen - firstSeen; stat_tap_set_field_data(table, idx, INTERVAL_COLUMN, msg_data); /* Update message rate */ msg_data = stat_tap_get_field_data(table, idx, MESSAGE_RATE_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = messages / (lastSeen - firstSeen); stat_tap_set_field_data(table, idx, MESSAGE_RATE_COLUMN, msg_data); /* Update byte rate */ msg_data = stat_tap_get_field_data(table, idx, BYTE_RATE_COLUMN); msg_data->type = TABLE_ITEM_FLOAT; msg_data->value.float_value = bytes / (lastSeen - firstSeen); stat_tap_set_field_data(table, idx, BYTE_RATE_COLUMN, msg_data); } return TAP_PACKET_REDRAW; } static void asap_stat_reset(stat_tap_table* table) { unsigned element; stat_tap_table_item_type* item_data; for (element = 0; element < table->num_elements; element++) { item_data = stat_tap_get_field_data(table, element, MESSAGES_COLUMN); item_data->value.uint_value = 0; stat_tap_set_field_data(table, element, MESSAGES_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, MESSAGES_SHARE_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = -1.0; stat_tap_set_field_data(table, element, MESSAGES_SHARE_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, BYTES_COLUMN); item_data->value.uint_value = 0; stat_tap_set_field_data(table, element, BYTES_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, BYTES_SHARE_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = -1.0; stat_tap_set_field_data(table, element, BYTES_SHARE_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, FIRST_SEEN_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = DBL_MAX; stat_tap_set_field_data(table, element, FIRST_SEEN_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, LAST_SEEN_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = DBL_MIN; stat_tap_set_field_data(table, element, LAST_SEEN_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, INTERVAL_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = -1.0; stat_tap_set_field_data(table, element, INTERVAL_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, MESSAGE_RATE_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = -1.0; stat_tap_set_field_data(table, element, MESSAGE_RATE_COLUMN, item_data); item_data = stat_tap_get_field_data(table, element, BYTE_RATE_COLUMN); item_data->type = TABLE_ITEM_NONE; item_data->value.float_value = -1.0; stat_tap_set_field_data(table, element, BYTE_RATE_COLUMN, item_data); } asap_total_msgs = 0; asap_total_bytes = 0; } /* Register the protocol with Wireshark */ void proto_register_asap(void) { /* Setup list of header fields */ static hf_register_info hf[] = { { &hf_message_type, { "Type", "asap.message_type", FT_UINT8, BASE_DEC, VALS(message_type_values), 0x0, NULL, HFILL } }, { &hf_message_flags, { "Flags", "asap.message_flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_message_length, { "Length", "asap.message_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_cause_code, { "Cause Code", "asap.cause_code", FT_UINT16, BASE_HEX, VALS(cause_code_values), 0x0, NULL, HFILL } }, { &hf_cause_length, { "Cause Length", "asap.cause_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_cause_info, { "Cause Info", "asap.cause_info", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_cause_padding, { "Padding", "asap.cause_padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_parameter_type, { "Parameter Type", "asap.parameter_type", FT_UINT16, BASE_HEX, VALS(parameter_type_values), 0x0, NULL, HFILL } }, { &hf_parameter_length, { "Parameter Length", "asap.parameter_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_parameter_value, { "Parameter Value", "asap.parameter_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_parameter_padding, { "Padding", "asap.parameter_padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_parameter_ipv4_address, { "IP Version 4 Address", "asap.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_parameter_ipv6_address, { "IP Version 6 Address", "asap.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_dccp_port, { "Port", "asap.dccp_transport_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dccp_reserved, { "Reserved", "asap.dccp_transport_reserved", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dccp_service_code, { "Service Code", "asap.dccp_transport_service_code", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_sctp_port, { "Port", "asap.sctp_transport_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_transport_use, { "Transport Use", "asap.transport_use", FT_UINT16, BASE_DEC, VALS(transport_use_values), 0x0, NULL, HFILL } }, { &hf_tcp_port, { "Port", "asap.tcp_transport_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_udp_port, { "Port", "asap.udp_transport_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_udp_reserved, { "Reserved", "asap.udp_transport_reserved", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_udp_lite_port, { "Port", "asap.udp_lite_transport_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_udp_lite_reserved, { "Reserved", "asap.udp_lite_transport_reserved", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_policy_type, { "Policy Type", "asap.pool_member_selection_policy_type", FT_UINT32, BASE_HEX, VALS(policy_type_values), 0x0, NULL, HFILL } }, { &hf_policy_weight, { "Policy Weight", "asap.pool_member_selection_policy_weight", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_policy_priority, { "Policy Priority", "asap.pool_member_selection_policy_priority", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_policy_load, { "Policy Load", "asap.pool_member_selection_policy_load", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_policy_degradation, { "Policy Degradation", "asap.pool_member_selection_policy_degradation", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_policy_loaddpf, { "Policy Load DPF", "asap.pool_member_selection_policy_load_dpf", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_policy_weightdpf, { "Policy Weight DPF", "asap.pool_member_selection_policy_weight_dpf", FT_DOUBLE, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_policy_distance, { "Policy Distance", "asap.pool_member_selection_policy_distance", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_policy_value, { "Policy Value", "asap.pool_member_selection_policy_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_pool_handle, { "Pool Handle", "asap.pool_handle_pool_handle", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_pe_pe_identifier, { "PE Identifier", "asap.pool_element_pe_identifier", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_home_enrp_id, { "Home ENRP Server Identifier", "asap.pool_element_home_enrp_server_identifier", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_reg_life, { "Registration Life", "asap.pool_element_registration_life", FT_INT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_milliseconds), 0x0, NULL, HFILL } }, { &hf_cookie, { "Cookie", "asap.cookie", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_pe_identifier, { "PE Identifier", "asap.pe_identifier", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_pe_checksum, { "PE Checksum", "asap.pe_checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_hropt_items, { "Items", "asap.hropt_items", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_server_identifier, { "Server Identifier", "asap.server_identifier", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_home_enrp_server_bit, { "H Bit", "asap.h_bit", FT_BOOLEAN, 8, TFS(&home_enrp_server_bit_value), HOME_ENRP_SERVER_BIT_MASK, NULL, HFILL } }, { &hf_reject_bit, { "R Bit", "asap.r_bit", FT_BOOLEAN, 8, TFS(&reject_bit_value), REJECT_BIT_MASK, NULL, HFILL } }, }; /* Setup protocol subtree array */ static int *ett[] = { &ett_asap, &ett_asap_flags, &ett_asap_parameter, &ett_asap_cause, }; static tap_param asap_stat_params[] = { { PARAM_FILTER, "filter", "Filter", NULL, true } }; static stat_tap_table_ui asap_stat_table = { REGISTER_STAT_GROUP_RSERPOOL, "ASAP Statistics", "asap", "asap,stat", asap_stat_init, asap_stat_packet, asap_stat_reset, NULL, NULL, array_length(asap_stat_fields), asap_stat_fields, array_length(asap_stat_params), asap_stat_params, NULL, 0 }; /* Register the protocol name and description */ proto_asap = proto_register_protocol("Aggregate Server Access Protocol", "ASAP", "asap"); /* Required function calls to register the header fields and subtrees used */ proto_register_field_array(proto_asap, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); asap_tap = register_tap("asap"); asap_handle = register_dissector("asap", dissect_asap, proto_asap); register_stat_tap_table_ui(&asap_stat_table); } void proto_reg_handoff_asap(void) { dissector_add_uint("sctp.ppi", ASAP_PAYLOAD_PROTOCOL_ID, asap_handle); dissector_add_uint_with_preference("udp.port", ASAP_UDP_PORT, asap_handle); dissector_add_uint_with_preference("tcp.port", ASAP_TCP_PORT, asap_handle); dissector_add_uint("sctp.port", ASAP_SCTP_PORT, asap_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local Variables: * c-basic-offset: 2 * tab-width: 8 * indent-tabs-mode: nil * End: * * ex: set shiftwidth=2 tabstop=8 expandtab: * :indentSize=2:tabSize=8:noTabs=true: */