ikev1: Add support for extended sequence numbers
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
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@ -933,6 +933,7 @@ static void add_to_proposal_v1(proposal_t *proposal,
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transform_attribute_t *tattr;
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enumerator_t *enumerator;
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uint16_t encr, value, key_length = 0;
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extended_sequence_numbers_t esn = NO_EXT_SEQ_NUMBERS;
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enumerator = transform->create_attribute_enumerator(transform);
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while (enumerator->enumerate(enumerator, &tattr))
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@ -952,15 +953,16 @@ static void add_to_proposal_v1(proposal_t *proposal,
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proposal->add_algorithm(proposal, DIFFIE_HELLMAN_GROUP,
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value, 0);
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break;
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case TATTR_PH2_EXT_SEQ_NUMBER:
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esn = EXT_SEQ_NUMBERS;
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break;
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default:
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break;
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}
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}
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enumerator->destroy(enumerator);
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/* TODO-IKEv1: handle ESN attribute */
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proposal->add_algorithm(proposal, EXTENDED_SEQUENCE_NUMBERS,
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NO_EXT_SEQ_NUMBERS, 0);
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proposal->add_algorithm(proposal, EXTENDED_SEQUENCE_NUMBERS, esn, 0);
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if (proto == PROTO_ESP)
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{
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encr = get_alg_from_ikev1_transid(ENCRYPTION_ALGORITHM,
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@ -1410,6 +1412,18 @@ static void set_from_proposal_v1(private_proposal_substructure_t *this,
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TATTR_PH2_SA_LIFE_DURATION, lifebytes / 1000));
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}
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enumerator = proposal->create_enumerator(proposal,
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EXTENDED_SEQUENCE_NUMBERS);
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while (enumerator->enumerate(enumerator, &alg, NULL))
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{
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if (alg == EXT_SEQ_NUMBERS)
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{
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transform->add_transform_attribute(transform,
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transform_attribute_create_value(PLV1_TRANSFORM_ATTRIBUTE,
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TATTR_PH2_EXT_SEQ_NUMBER, alg));
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}
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}
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enumerator->destroy(enumerator);
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add_transform_substructure(this, transform);
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}
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