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Diffstat (limited to 'lib/src/protocol/ah.c')
| -rwxr-xr-x | lib/src/protocol/ah.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/lib/src/protocol/ah.c b/lib/src/protocol/ah.c new file mode 100755 index 000000000..f9ddf7775 --- /dev/null +++ b/lib/src/protocol/ah.c @@ -0,0 +1,211 @@ +/* + * Copyright (c) 2017-2019 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. + */ + +/** + * @file protocol/ah.c + * @brief hICN operations for AH header + */ + +#include <string.h> // memcpy +#include "../common.h" +#include "../error.h" +#include "../header.h" +#include "../ops.h" +#include "ah.h" + +DECLARE_get_interest_locator (ah, UNEXPECTED); +DECLARE_set_interest_locator (ah, UNEXPECTED); +DECLARE_get_interest_name (ah, UNEXPECTED); +DECLARE_set_interest_name (ah, UNEXPECTED); +DECLARE_get_interest_name_suffix (ah, UNEXPECTED); +DECLARE_set_interest_name_suffix (ah, UNEXPECTED); +DECLARE_get_data_locator (ah, UNEXPECTED); +DECLARE_set_data_locator (ah, UNEXPECTED); +DECLARE_get_data_name (ah, UNEXPECTED); +DECLARE_set_data_name (ah, UNEXPECTED); +DECLARE_get_data_name_suffix (ah, UNEXPECTED); +DECLARE_set_data_name_suffix (ah, UNEXPECTED); +DECLARE_get_data_pathlabel (ah, UNEXPECTED); +DECLARE_set_data_pathlabel (ah, UNEXPECTED); +DECLARE_update_data_pathlabel (ah, UNEXPECTED); +DECLARE_get_lifetime (ah, UNEXPECTED); +DECLARE_set_lifetime (ah, UNEXPECTED); +DECLARE_get_payload_length (ah, UNEXPECTED); +DECLARE_set_payload_length (ah, UNEXPECTED); + +int +ah_init_packet_header (hicn_type_t type, hicn_protocol_t * h) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +} + +int +ah_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t * h) +{ + size_t signature_size; + int rc = + hicn_ops_vft[type.l1]->get_signature_size (type, h, &signature_size); + if (rc < 0) + return rc; + memset (&(h->ah.validationPayload), 0, signature_size); + return CHILD_OPS (reset_interest_for_hash, type, h); +} + +int +ah_reset_data_for_hash (hicn_type_t type, hicn_protocol_t * h) +{ + size_t signature_size; + int rc = + hicn_ops_vft[type.l1]->get_signature_size (type, h, &signature_size); + if (rc < 0) + return rc; + memset (&(h->ah.validationPayload), 0, signature_size); + return CHILD_OPS (reset_interest_for_hash, type, h); +} + +int +ah_update_checksums (hicn_type_t type, hicn_protocol_t * h, u16 partial_csum, + size_t payload_length) +{ + /* Nothing to do as there is no checksum in AH */ + return HICN_LIB_ERROR_NONE; +} + +int +ah_verify_checksums (hicn_type_t type, hicn_protocol_t * h, u16 partial_csum, + size_t payload_length) +{ + /* Nothing to do as there is no checksum in AH */ + return HICN_LIB_ERROR_NONE; +} + +int +ah_rewrite_interest (hicn_type_t type, hicn_protocol_t * h, + const ip46_address_t * addr_new, + ip46_address_t * addr_old) +{ + /* Nothing to do on signature */ + return HICN_LIB_ERROR_NONE; +} + +int +ah_rewrite_data (hicn_type_t type, hicn_protocol_t * h, + const ip46_address_t * addr_new, ip46_address_t * addr_old, + const hicn_faceid_t face_id) +{ + /* Nothing to do on signature */ + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_length (hicn_type_t type, const hicn_protocol_t * h, size_t * length) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +} + +int +ah_get_current_header_length (hicn_type_t type, const hicn_protocol_t * h, + size_t * header_length) +{ + *header_length = AH_HDRLEN + (h->ah.payloadlen << 2); + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_header_length (hicn_type_t type, const hicn_protocol_t * h, + size_t * header_length) +{ + size_t child_header_length = 0; + int rc = CHILD_OPS (get_header_length, type, h, &child_header_length); + if (rc < 0) + return rc; + *header_length = AH_HDRLEN + (h->ah.payloadlen << 2) + child_header_length; + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_signature_size (hicn_type_t type, const hicn_protocol_t * h, + size_t * signature_size) +{ + *signature_size = h->ah.payloadlen << 2; + return HICN_LIB_ERROR_NONE; +} + +int +ah_set_signature_size (hicn_type_t type, hicn_protocol_t * h, + const size_t signature_size) +{ + h->ah.payloadlen = signature_size >> 2; + return HICN_LIB_ERROR_NONE; +} + +int +ah_set_signature_timestamp(hicn_type_t type, hicn_protocol_t * h, + uint64_t signature_timestamp) +{ + h->ah.timestamp_as_u64 = signature_timestamp; + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t * h, + uint64_t * signature_timestamp) +{ + *signature_timestamp = h->ah.timestamp_as_u64; + return HICN_LIB_ERROR_NONE; +} + +int +ah_set_validation_algorithm (hicn_type_t type, hicn_protocol_t * h, + uint8_t validation_algorithm) +{ + h->ah.validationAlgorithm = validation_algorithm; + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t * h, + uint8_t * validation_algorithm) +{ + *validation_algorithm = h->ah.validationAlgorithm; + return HICN_LIB_ERROR_NONE; +} + +int +ah_set_key_id (hicn_type_t type, hicn_protocol_t * h, + uint8_t *key_id) +{ + memcpy(h->ah.keyId, key_id, sizeof(h->ah.keyId)); + return HICN_LIB_ERROR_NONE; +} + +int +ah_get_key_id (hicn_type_t type, hicn_protocol_t * h, + uint8_t **key_id, uint8_t *key_id_size) +{ + *key_id = h->ah.keyId; + *key_id_size = sizeof(h->ah.keyId); + return HICN_LIB_ERROR_NONE; +} + +DECLARE_HICN_OPS (ah); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |