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| author | Thomas Egerer <thomas.egerer@secunet.com> | 2016-06-20 18:19:51 +0200 |
|---|---|---|
| committer | Tobias Brunner <tobias@strongswan.org> | 2016-06-29 11:16:48 +0200 |
| commit | 40bb4677f7609476f52c36c6acc53ef334c7d3e8 (patch) | |
| tree | b30f168dfd75f62a54c3581b1082d97f6aa356fe /src/libcharon/encoding | |
| parent | 7c81219bb8dee61655361a0ff4cf6167cb62362d (diff) | |
| download | strongswan-40bb4677f7609476f52c36c6acc53ef334c7d3e8.tar.bz2 strongswan-40bb4677f7609476f52c36c6acc53ef334c7d3e8.tar.xz | |
ikev1: Add support for extended sequence numbers
Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com>
Diffstat (limited to 'src/libcharon/encoding')
| -rw-r--r-- | src/libcharon/encoding/payloads/proposal_substructure.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/libcharon/encoding/payloads/proposal_substructure.c b/src/libcharon/encoding/payloads/proposal_substructure.c index 1e63617e8..1a435a823 100644 --- a/src/libcharon/encoding/payloads/proposal_substructure.c +++ b/src/libcharon/encoding/payloads/proposal_substructure.c @@ -933,6 +933,7 @@ static void add_to_proposal_v1(proposal_t *proposal, transform_attribute_t *tattr; enumerator_t *enumerator; uint16_t encr, value, key_length = 0; + extended_sequence_numbers_t esn = NO_EXT_SEQ_NUMBERS; enumerator = transform->create_attribute_enumerator(transform); while (enumerator->enumerate(enumerator, &tattr)) @@ -952,15 +953,16 @@ static void add_to_proposal_v1(proposal_t *proposal, proposal->add_algorithm(proposal, DIFFIE_HELLMAN_GROUP, value, 0); break; + case TATTR_PH2_EXT_SEQ_NUMBER: + esn = EXT_SEQ_NUMBERS; + break; default: break; } } enumerator->destroy(enumerator); - /* TODO-IKEv1: handle ESN attribute */ - proposal->add_algorithm(proposal, EXTENDED_SEQUENCE_NUMBERS, - NO_EXT_SEQ_NUMBERS, 0); + proposal->add_algorithm(proposal, EXTENDED_SEQUENCE_NUMBERS, esn, 0); if (proto == PROTO_ESP) { encr = get_alg_from_ikev1_transid(ENCRYPTION_ALGORITHM, @@ -1410,6 +1412,18 @@ static void set_from_proposal_v1(private_proposal_substructure_t *this, TATTR_PH2_SA_LIFE_DURATION, lifebytes / 1000)); } + enumerator = proposal->create_enumerator(proposal, + EXTENDED_SEQUENCE_NUMBERS); + while (enumerator->enumerate(enumerator, &alg, NULL)) + { + if (alg == EXT_SEQ_NUMBERS) + { + transform->add_transform_attribute(transform, + transform_attribute_create_value(PLV1_TRANSFORM_ATTRIBUTE, + TATTR_PH2_EXT_SEQ_NUMBER, alg)); + } + } + enumerator->destroy(enumerator); add_transform_substructure(this, transform); } |