763 lines
20 KiB
C
763 lines
20 KiB
C
/*
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* Copyright (C) 2005-2010 Martin Willi
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* Copyright (C) 2010 revosec AG
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* Copyright (C) 2006-2008 Tobias Brunner
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* Copyright (C) 2006 Daniel Roethlisberger
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* Copyright (C) 2005 Jan Hutter
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <stddef.h>
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#include "notify_payload.h"
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#include <daemon.h>
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#include <encoding/payloads/encodings.h>
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#include <crypto/hashers/hasher.h>
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ENUM_BEGIN(notify_type_names, UNSUPPORTED_CRITICAL_PAYLOAD, UNSUPPORTED_CRITICAL_PAYLOAD,
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"UNSUPPORTED_CRITICAL_PAYLOAD");
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ENUM_NEXT(notify_type_names, INVALID_IKE_SPI, INVALID_MAJOR_VERSION, UNSUPPORTED_CRITICAL_PAYLOAD,
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"INVALID_IKE_SPI",
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"INVALID_MAJOR_VERSION");
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ENUM_NEXT(notify_type_names, INVALID_SYNTAX, INVALID_SYNTAX, INVALID_MAJOR_VERSION,
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"INVALID_SYNTAX");
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ENUM_NEXT(notify_type_names, INVALID_MESSAGE_ID, INVALID_MESSAGE_ID, INVALID_SYNTAX,
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"INVALID_MESSAGE_ID");
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ENUM_NEXT(notify_type_names, INVALID_SPI, INVALID_SPI, INVALID_MESSAGE_ID,
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"INVALID_SPI");
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ENUM_NEXT(notify_type_names, ATTRIBUTES_NOT_SUPPORTED, NO_PROPOSAL_CHOSEN, INVALID_SPI,
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"ATTRIBUTES_NOT_SUPPORTED",
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"NO_PROPOSAL_CHOSEN");
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ENUM_NEXT(notify_type_names, PAYLOAD_MALFORMED, AUTHENTICATION_FAILED, NO_PROPOSAL_CHOSEN,
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"PAYLOAD_MALFORMED",
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"INVALID_KE_PAYLOAD",
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"INVALID_ID_INFORMATION",
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"INVALID_CERT_ENCODING",
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"INVALID_CERTIFICATE",
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"CERT_TYPE_UNSUPPORTED",
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"INVALID_CERT_AUTHORITY",
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"INVALID_HASH_INFORMATION",
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"AUTHENTICATION_FAILED");
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ENUM_NEXT(notify_type_names, SINGLE_PAIR_REQUIRED, CHILD_SA_NOT_FOUND, AUTHENTICATION_FAILED,
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"SINGLE_PAIR_REQUIRED",
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"NO_ADDITIONAL_SAS",
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"INTERNAL_ADDRESS_FAILURE",
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"FAILED_CP_REQUIRED",
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"TS_UNACCEPTABLE",
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"INVALID_SELECTORS",
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"UNACCEPTABLE_ADDRESSES",
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"UNEXPECTED_NAT_DETECTED",
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"USE_ASSIGNED_HoA",
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"TEMPORARY_FAILURE",
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"CHILD_SA_NOT_FOUND");
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ENUM_NEXT(notify_type_names, ME_CONNECT_FAILED, ME_CONNECT_FAILED, CHILD_SA_NOT_FOUND,
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"ME_CONNECT_FAILED");
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ENUM_NEXT(notify_type_names, MS_NOTIFY_STATUS, MS_NOTIFY_STATUS, ME_CONNECT_FAILED,
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"MS_NOTIFY_STATUS");
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ENUM_NEXT(notify_type_names, INITIAL_CONTACT, SIGNATURE_HASH_ALGORITHMS, MS_NOTIFY_STATUS,
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"INITIAL_CONTACT",
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"SET_WINDOW_SIZE",
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"ADDITIONAL_TS_POSSIBLE",
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"IPCOMP_SUPPORTED",
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"NAT_DETECTION_SOURCE_IP",
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"NAT_DETECTION_DESTINATION_IP",
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"COOKIE",
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"USE_TRANSPORT_MODE",
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"HTTP_CERT_LOOKUP_SUPPORTED",
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"REKEY_SA",
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"ESP_TFC_PADDING_NOT_SUPPORTED",
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"NON_FIRST_FRAGMENTS_ALSO",
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"MOBIKE_SUPPORTED",
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"ADDITIONAL_IP4_ADDRESS",
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"ADDITIONAL_IP6_ADDRESS",
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"NO_ADDITIONAL_ADDRESSES",
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"UPDATE_SA_ADDRESSES",
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"COOKIE2",
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"NO_NATS_ALLOWED",
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"AUTH_LIFETIME",
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"MULTIPLE_AUTH_SUPPORTED",
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"ANOTHER_AUTH_FOLLOWS",
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"REDIRECT_SUPPORTED",
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"REDIRECT",
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"REDIRECTED_FROM",
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"TICKET_LT_OPAQUE",
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"TICKET_REQUEST",
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"TICKET_ACK",
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"TICKET_NACK",
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"TICKET_OPAQUE",
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"LINK_ID",
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"USE_WESP_MODE",
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"ROHC_SUPPORTED",
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"EAP_ONLY_AUTHENTICATION",
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"CHILDLESS_IKEV2_SUPPORTED",
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"QUICK_CRASH_DETECTION",
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"IKEV2_MESSAGE_ID_SYNC_SUPPORTED",
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"IKEV2_REPLAY_COUNTER_SYNC_SUPPORTED",
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"IKEV2_MESSAGE_ID_SYNC",
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"IPSEC_REPLAY_COUNTER_SYNC",
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"SECURE PASSWORD_METHOD",
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"PSK_PERSIST",
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"PSK_CONFIRM",
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"ERX_SUPPORTED",
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"IFOM_CAPABILITY",
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"SENDER_REQUEST_ID",
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"FRAGMENTATION_SUPPORTED",
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"SIGNATURE_HASH_ALGORITHMS");
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ENUM_NEXT(notify_type_names, INITIAL_CONTACT_IKEV1, INITIAL_CONTACT_IKEV1, SIGNATURE_HASH_ALGORITHMS,
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"INITIAL_CONTACT");
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ENUM_NEXT(notify_type_names, DPD_R_U_THERE, DPD_R_U_THERE_ACK, INITIAL_CONTACT_IKEV1,
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"DPD_R_U_THERE",
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"DPD_R_U_THERE_ACK");
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ENUM_NEXT(notify_type_names, UNITY_LOAD_BALANCE, UNITY_LOAD_BALANCE, DPD_R_U_THERE_ACK,
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"UNITY_LOAD_BALANCE");
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ENUM_NEXT(notify_type_names, USE_BEET_MODE, USE_BEET_MODE, UNITY_LOAD_BALANCE,
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"USE_BEET_MODE");
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ENUM_NEXT(notify_type_names, ME_MEDIATION, RADIUS_ATTRIBUTE, USE_BEET_MODE,
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"ME_MEDIATION",
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"ME_ENDPOINT",
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"ME_CALLBACK",
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"ME_CONNECTID",
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"ME_CONNECTKEY",
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"ME_CONNECTAUTH",
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"ME_RESPONSE",
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"RADIUS_ATTRIBUTE");
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ENUM_END(notify_type_names, RADIUS_ATTRIBUTE);
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ENUM_BEGIN(notify_type_short_names, UNSUPPORTED_CRITICAL_PAYLOAD, UNSUPPORTED_CRITICAL_PAYLOAD,
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"CRIT");
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ENUM_NEXT(notify_type_short_names, INVALID_IKE_SPI, INVALID_MAJOR_VERSION, UNSUPPORTED_CRITICAL_PAYLOAD,
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"INVAL_IKE_SPI",
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"INVAL_MAJOR");
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ENUM_NEXT(notify_type_short_names, INVALID_SYNTAX, INVALID_SYNTAX, INVALID_MAJOR_VERSION,
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"INVAL_SYN");
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ENUM_NEXT(notify_type_short_names, INVALID_MESSAGE_ID, INVALID_MESSAGE_ID, INVALID_SYNTAX,
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"INVAL_MID");
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ENUM_NEXT(notify_type_short_names, INVALID_SPI, INVALID_SPI, INVALID_MESSAGE_ID,
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"INVAL_SPI");
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ENUM_NEXT(notify_type_short_names, ATTRIBUTES_NOT_SUPPORTED, NO_PROPOSAL_CHOSEN, INVALID_SPI,
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"ATTR_UNSUP",
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"NO_PROP");
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ENUM_NEXT(notify_type_short_names, PAYLOAD_MALFORMED, AUTHENTICATION_FAILED, NO_PROPOSAL_CHOSEN,
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"PLD_MAL",
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"INVAL_KE",
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"INVAL_ID",
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"INVAL_CERTEN",
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"INVAL_CERT",
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"CERT_UNSUP",
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"INVAL_CA",
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"INVAL_HASH",
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"AUTH_FAILED");
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ENUM_NEXT(notify_type_short_names, SINGLE_PAIR_REQUIRED, CHILD_SA_NOT_FOUND, AUTHENTICATION_FAILED,
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"SINGLE_PAIR",
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"NO_ADD_SAS",
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"INT_ADDR_FAIL",
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"FAIL_CP_REQ",
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"TS_UNACCEPT",
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"INVAL_SEL",
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"UNACCEPT_ADDR",
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"UNEXPECT_NAT",
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"ASSIGNED_HoA",
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"TEMP_FAIL",
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"NO_CHILD_SA");
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ENUM_NEXT(notify_type_short_names, ME_CONNECT_FAILED, ME_CONNECT_FAILED, CHILD_SA_NOT_FOUND,
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"ME_CONN_FAIL");
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ENUM_NEXT(notify_type_short_names, MS_NOTIFY_STATUS, MS_NOTIFY_STATUS, ME_CONNECT_FAILED,
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"MS_STATUS");
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ENUM_NEXT(notify_type_short_names, INITIAL_CONTACT, SIGNATURE_HASH_ALGORITHMS, MS_NOTIFY_STATUS,
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"INIT_CONTACT",
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"SET_WINSIZE",
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"ADD_TS_POSS",
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"IPCOMP_SUP",
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"NATD_S_IP",
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"NATD_D_IP",
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"COOKIE",
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"USE_TRANSP",
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"HTTP_CERT_LOOK",
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"REKEY_SA",
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"ESP_TFC_PAD_N",
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"NON_FIRST_FRAG",
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"MOBIKE_SUP",
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"ADD_4_ADDR",
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"ADD_6_ADDR",
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"NO_ADD_ADDR",
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"UPD_SA_ADDR",
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"COOKIE2",
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"NO_NATS",
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"AUTH_LFT",
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"MULT_AUTH",
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"AUTH_FOLLOWS",
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"REDIR_SUP",
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"REDIR",
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"REDIR_FROM",
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"TKT_LT_OPAK",
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"TKT_REQ",
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"TKT_ACK",
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"TKT_NACK",
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"TKT_OPAK",
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"LINK_ID",
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"WESP_MODE",
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"ROHC_SUP",
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"EAP_ONLY",
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"CHDLESS_SUP",
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"CRASH_DET",
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"MSG_ID_SYN_SUP",
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"RPL_CTR_SYN_SUP",
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"MSG_ID_SYN",
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"RPL_CTR_SYN",
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"SEC_PASSWD",
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"PSK_PST",
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"PSK_CFM",
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"ERX_SUP",
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"IFOM_CAP",
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"SENDER_REQ_ID",
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"FRAG_SUP",
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"HASH_ALG");
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ENUM_NEXT(notify_type_short_names, INITIAL_CONTACT_IKEV1, INITIAL_CONTACT_IKEV1, SIGNATURE_HASH_ALGORITHMS,
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"INITIAL_CONTACT");
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ENUM_NEXT(notify_type_short_names, DPD_R_U_THERE, DPD_R_U_THERE_ACK, INITIAL_CONTACT_IKEV1,
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"DPD",
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"DPD_ACK");
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ENUM_NEXT(notify_type_short_names, UNITY_LOAD_BALANCE, UNITY_LOAD_BALANCE, DPD_R_U_THERE_ACK,
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"UNITY_LB");
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ENUM_NEXT(notify_type_short_names, USE_BEET_MODE, USE_BEET_MODE, UNITY_LOAD_BALANCE,
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"BEET_MODE");
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ENUM_NEXT(notify_type_short_names, ME_MEDIATION, RADIUS_ATTRIBUTE, USE_BEET_MODE,
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"ME_MED",
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"ME_EP",
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"ME_CB",
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"ME_CID",
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"ME_CKEY",
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"ME_CAUTH",
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"ME_R",
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"RADIUS");
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ENUM_END(notify_type_short_names, RADIUS_ATTRIBUTE);
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typedef struct private_notify_payload_t private_notify_payload_t;
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/**
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* Private data of an notify_payload_t object.
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*/
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struct private_notify_payload_t {
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/**
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* Public notify_payload_t interface.
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*/
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notify_payload_t public;
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/**
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* Next payload type.
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*/
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uint8_t next_payload;
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/**
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* Critical flag.
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*/
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bool critical;
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/**
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* reserved bits
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*/
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bool reserved[8];
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/**
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* Length of this payload.
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*/
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uint16_t payload_length;
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/**
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* Domain of interpretation, IKEv1 only.
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*/
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uint32_t doi;
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/**
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* Protocol id.
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*/
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uint8_t protocol_id;
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/**
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* Spi size.
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*/
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uint8_t spi_size;
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/**
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* Notify message type.
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*/
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uint16_t notify_type;
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/**
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* Security parameter index (spi).
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*/
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chunk_t spi;
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/**
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* Notification data.
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*/
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chunk_t notify_data;
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/**
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* Type of payload, PLV2_NOTIFY or PLV1_NOTIFY
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*/
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payload_type_t type;
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};
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/**
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* Encoding rules for an IKEv2 notification payload
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*/
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static encoding_rule_t encodings_v2[] = {
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/* 1 Byte next payload type, stored in the field next_payload */
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{ U_INT_8, offsetof(private_notify_payload_t, next_payload) },
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/* the critical bit */
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{ FLAG, offsetof(private_notify_payload_t, critical) },
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/* 7 Bit reserved bits, nowhere stored */
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[0]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[1]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[2]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[3]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[4]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[5]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[6]) },
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/* Length of the whole payload*/
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{ PAYLOAD_LENGTH, offsetof(private_notify_payload_t, payload_length) },
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/* Protocol ID as 8 bit field*/
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{ U_INT_8, offsetof(private_notify_payload_t, protocol_id) },
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/* SPI Size as 8 bit field*/
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{ SPI_SIZE, offsetof(private_notify_payload_t, spi_size) },
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/* Notify message type as 16 bit field*/
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{ U_INT_16, offsetof(private_notify_payload_t, notify_type) },
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/* SPI as variable length field*/
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{ SPI, offsetof(private_notify_payload_t, spi) },
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/* Key Exchange Data is from variable size */
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{ CHUNK_DATA, offsetof(private_notify_payload_t, notify_data) },
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};
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/*
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1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Next Payload !C! RESERVED ! Payload Length !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Protocol ID ! SPI Size ! Notify Message Type !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! !
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~ Security Parameter Index (SPI) ~
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! !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! !
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~ Notification Data ~
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! !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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/**
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* Encoding rules for an IKEv1 notification payload
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*/
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static encoding_rule_t encodings_v1[] = {
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/* 1 Byte next payload type, stored in the field next_payload */
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{ U_INT_8, offsetof(private_notify_payload_t, next_payload) },
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/* 8 reserved bits */
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[0]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[1]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[2]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[3]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[4]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[5]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[6]) },
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{ RESERVED_BIT, offsetof(private_notify_payload_t, reserved[7]) },
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/* Length of the whole payload*/
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{ PAYLOAD_LENGTH, offsetof(private_notify_payload_t, payload_length) },
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/* DOI as 32 bit field*/
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{ U_INT_32, offsetof(private_notify_payload_t, doi) },
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/* Protocol ID as 8 bit field*/
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{ U_INT_8, offsetof(private_notify_payload_t, protocol_id) },
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/* SPI Size as 8 bit field*/
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{ SPI_SIZE, offsetof(private_notify_payload_t, spi_size) },
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/* Notify message type as 16 bit field*/
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{ U_INT_16, offsetof(private_notify_payload_t, notify_type) },
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/* SPI as variable length field*/
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{ SPI, offsetof(private_notify_payload_t, spi) },
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/* Key Exchange Data is from variable size */
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{ CHUNK_DATA, offsetof(private_notify_payload_t, notify_data) },
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};
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/*
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1 2 3
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0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Next Payload ! RESERVED ! Payload Length !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! DOI !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! Protocol ID ! SPI Size ! Notify Message Type !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! !
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~ Security Parameter Index (SPI) ~
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! !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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! !
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~ Notification Data ~
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! !
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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METHOD(payload_t, verify, status_t,
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private_notify_payload_t *this)
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{
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bool bad_length = FALSE;
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switch (this->protocol_id)
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{
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case PROTO_NONE:
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case PROTO_IKE:
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case PROTO_AH:
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case PROTO_ESP:
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break;
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default:
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DBG1(DBG_ENC, "Unknown protocol (%d)", this->protocol_id);
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return FAILED;
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}
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switch (this->notify_type)
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{
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case INVALID_KE_PAYLOAD:
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{
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if (this->type == PLV2_NOTIFY && this->notify_data.len != 2)
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{
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bad_length = TRUE;
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}
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break;
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}
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case NAT_DETECTION_SOURCE_IP:
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case NAT_DETECTION_DESTINATION_IP:
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case ME_CONNECTAUTH:
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{
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if (this->notify_data.len != HASH_SIZE_SHA1)
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{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case INVALID_SYNTAX:
|
|
case INVALID_MAJOR_VERSION:
|
|
case NO_PROPOSAL_CHOSEN:
|
|
{
|
|
if (this->type == PLV2_NOTIFY && this->notify_data.len != 0)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case ADDITIONAL_IP4_ADDRESS:
|
|
{
|
|
if (this->notify_data.len != 4)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case ADDITIONAL_IP6_ADDRESS:
|
|
{
|
|
if (this->notify_data.len != 16)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case SIGNATURE_HASH_ALGORITHMS:
|
|
{
|
|
if (this->notify_data.len % 2)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case AUTH_LIFETIME:
|
|
{
|
|
if (this->notify_data.len != 4)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case IPCOMP_SUPPORTED:
|
|
{
|
|
if (this->notify_data.len != 3)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
case ME_ENDPOINT:
|
|
if (this->notify_data.len != 8 &&
|
|
this->notify_data.len != 12 &&
|
|
this->notify_data.len != 24)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
case ME_CONNECTID:
|
|
if (this->notify_data.len < 4 ||
|
|
this->notify_data.len > 16)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
case ME_CONNECTKEY:
|
|
if (this->notify_data.len < 16 ||
|
|
this->notify_data.len > 32)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
case DPD_R_U_THERE:
|
|
case DPD_R_U_THERE_ACK:
|
|
if (this->notify_data.len != 4)
|
|
{
|
|
bad_length = TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
/* TODO: verify */
|
|
break;
|
|
}
|
|
if (bad_length)
|
|
{
|
|
DBG1(DBG_ENC, "invalid notify data length for %N (%d)",
|
|
notify_type_names, this->notify_type,
|
|
this->notify_data.len);
|
|
return FAILED;
|
|
}
|
|
return SUCCESS;
|
|
}
|
|
|
|
METHOD(payload_t, get_encoding_rules, int,
|
|
private_notify_payload_t *this, encoding_rule_t **rules)
|
|
{
|
|
if (this->type == PLV2_NOTIFY)
|
|
{
|
|
*rules = encodings_v2;
|
|
return countof(encodings_v2);
|
|
}
|
|
*rules = encodings_v1;
|
|
return countof(encodings_v1);
|
|
}
|
|
|
|
METHOD(payload_t, get_header_length, int,
|
|
private_notify_payload_t *this)
|
|
{
|
|
if (this->type == PLV2_NOTIFY)
|
|
{
|
|
return 8 + this->spi_size;
|
|
}
|
|
return 12 + this->spi_size;
|
|
}
|
|
|
|
METHOD(payload_t, get_type, payload_type_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->type;
|
|
}
|
|
|
|
METHOD(payload_t, get_next_type, payload_type_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->next_payload;
|
|
}
|
|
|
|
METHOD(payload_t, set_next_type, void,
|
|
private_notify_payload_t *this, payload_type_t type)
|
|
{
|
|
this->next_payload = type;
|
|
}
|
|
|
|
/**
|
|
* recompute the payloads length.
|
|
*/
|
|
static void compute_length(private_notify_payload_t *this)
|
|
{
|
|
this->payload_length = get_header_length(this) + this->notify_data.len;
|
|
}
|
|
|
|
METHOD(payload_t, get_length, size_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->payload_length;
|
|
}
|
|
|
|
METHOD(notify_payload_t, get_protocol_id, uint8_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->protocol_id;
|
|
}
|
|
|
|
METHOD(notify_payload_t, set_protocol_id, void,
|
|
private_notify_payload_t *this, uint8_t protocol_id)
|
|
{
|
|
this->protocol_id = protocol_id;
|
|
}
|
|
|
|
METHOD(notify_payload_t, get_notify_type, notify_type_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->notify_type;
|
|
}
|
|
|
|
METHOD(notify_payload_t, set_notify_type, void,
|
|
private_notify_payload_t *this, notify_type_t notify_type)
|
|
{
|
|
this->notify_type = notify_type;
|
|
}
|
|
|
|
METHOD(notify_payload_t, get_spi, uint32_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
switch (this->protocol_id)
|
|
{
|
|
case PROTO_AH:
|
|
case PROTO_ESP:
|
|
if (this->spi.len == 4)
|
|
{
|
|
return *((uint32_t*)this->spi.ptr);
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
METHOD(notify_payload_t, set_spi, void,
|
|
private_notify_payload_t *this, uint32_t spi)
|
|
{
|
|
chunk_free(&this->spi);
|
|
switch (this->protocol_id)
|
|
{
|
|
case PROTO_AH:
|
|
case PROTO_ESP:
|
|
this->spi = chunk_alloc(4);
|
|
*((uint32_t*)this->spi.ptr) = spi;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
this->spi_size = this->spi.len;
|
|
compute_length(this);
|
|
}
|
|
|
|
METHOD(notify_payload_t, get_spi_data, chunk_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
switch (this->protocol_id)
|
|
{
|
|
case PROTO_IKE:
|
|
if (this->spi.len == 16)
|
|
{
|
|
return this->spi;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return chunk_empty;
|
|
}
|
|
|
|
METHOD(notify_payload_t, set_spi_data, void,
|
|
private_notify_payload_t *this, chunk_t spi)
|
|
{
|
|
chunk_free(&this->spi);
|
|
switch (this->protocol_id)
|
|
{
|
|
case PROTO_IKE:
|
|
this->spi = chunk_clone(spi);
|
|
default:
|
|
break;
|
|
}
|
|
this->spi_size = this->spi.len;
|
|
compute_length(this);
|
|
}
|
|
|
|
METHOD(notify_payload_t, get_notification_data, chunk_t,
|
|
private_notify_payload_t *this)
|
|
{
|
|
return this->notify_data;
|
|
}
|
|
|
|
METHOD(notify_payload_t, set_notification_data, void,
|
|
private_notify_payload_t *this, chunk_t data)
|
|
{
|
|
free(this->notify_data.ptr);
|
|
this->notify_data = chunk_clone(data);
|
|
compute_length(this);
|
|
}
|
|
|
|
METHOD2(payload_t, notify_payload_t, destroy, void,
|
|
private_notify_payload_t *this)
|
|
{
|
|
free(this->notify_data.ptr);
|
|
free(this->spi.ptr);
|
|
free(this);
|
|
}
|
|
|
|
/*
|
|
* Described in header
|
|
*/
|
|
notify_payload_t *notify_payload_create(payload_type_t type)
|
|
{
|
|
private_notify_payload_t *this;
|
|
|
|
INIT(this,
|
|
.public = {
|
|
.payload_interface = {
|
|
.verify = _verify,
|
|
.get_encoding_rules = _get_encoding_rules,
|
|
.get_header_length = _get_header_length,
|
|
.get_length = _get_length,
|
|
.get_next_type = _get_next_type,
|
|
.set_next_type = _set_next_type,
|
|
.get_type = _get_type,
|
|
.destroy = _destroy,
|
|
},
|
|
.get_protocol_id = _get_protocol_id,
|
|
.set_protocol_id = _set_protocol_id,
|
|
.get_notify_type = _get_notify_type,
|
|
.set_notify_type = _set_notify_type,
|
|
.get_spi = _get_spi,
|
|
.set_spi = _set_spi,
|
|
.get_spi_data = _get_spi_data,
|
|
.set_spi_data = _set_spi_data,
|
|
.get_notification_data = _get_notification_data,
|
|
.set_notification_data = _set_notification_data,
|
|
.destroy = _destroy,
|
|
},
|
|
.doi = IKEV1_DOI_IPSEC,
|
|
.next_payload = PL_NONE,
|
|
.type = type,
|
|
);
|
|
compute_length(this);
|
|
return &this->public;
|
|
}
|
|
|
|
/*
|
|
* Described in header.
|
|
*/
|
|
notify_payload_t *notify_payload_create_from_protocol_and_type(
|
|
payload_type_t type, protocol_id_t protocol, notify_type_t notify)
|
|
{
|
|
notify_payload_t *this = notify_payload_create(type);
|
|
|
|
this->set_notify_type(this, notify);
|
|
this->set_protocol_id(this, protocol);
|
|
|
|
return this;
|
|
}
|