diff options
Diffstat (limited to 'lib/src/protocol/icmp.c')
| -rwxr-xr-x | lib/src/protocol/icmp.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/lib/src/protocol/icmp.c b/lib/src/protocol/icmp.c new file mode 100755 index 000000000..44b646fb2 --- /dev/null +++ b/lib/src/protocol/icmp.c @@ -0,0 +1,229 @@ +/* + * 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. + */ + +#include <string.h> +#include "icmp.h" + +#include "../error.h" +#include "../ops.h" + +DECLARE_get_interest_locator (icmp, UNEXPECTED) +DECLARE_set_interest_locator (icmp, UNEXPECTED) +DECLARE_get_interest_name (icmp, UNEXPECTED) +DECLARE_set_interest_name (icmp, UNEXPECTED) +DECLARE_get_interest_name_suffix (icmp, UNEXPECTED) +DECLARE_set_interest_name_suffix (icmp, UNEXPECTED) +DECLARE_get_data_locator (icmp, UNEXPECTED) +DECLARE_set_data_locator (icmp, UNEXPECTED) +DECLARE_get_data_name (icmp, UNEXPECTED) +DECLARE_set_data_name (icmp, UNEXPECTED) +DECLARE_get_data_name_suffix (icmp, UNEXPECTED) +DECLARE_set_data_name_suffix (icmp, UNEXPECTED) +DECLARE_get_data_pathlabel (icmp, UNEXPECTED) +DECLARE_set_data_pathlabel (icmp, UNEXPECTED) +DECLARE_update_data_pathlabel (icmp, UNEXPECTED) +DECLARE_get_lifetime (icmp, UNEXPECTED) +DECLARE_set_lifetime (icmp, UNEXPECTED) +DECLARE_get_length (icmp, UNEXPECTED) +DECLARE_get_payload_length (icmp, UNEXPECTED) +DECLARE_set_payload_length (icmp, UNEXPECTED) + int icmp_init_packet_header (hicn_type_t type, hicn_protocol_t * h) +{ + h->icmp = (_icmp_header_t) + { + .type = 0,.code = 0,.csum = 0,}; + + return HICN_LIB_ERROR_NONE; // CHILD_OPS(init_packet_header, type, h->icmp); +} + +int +icmp_reset_interest_for_hash (hicn_type_t type, hicn_protocol_t * h) +{ + h->icmp.csum = 0; + + return CHILD_OPS (reset_interest_for_hash, type, h); +} + +int +icmp_reset_data_for_hash (hicn_type_t type, hicn_protocol_t * h) +{ + h->icmp.csum = 0; + + return CHILD_OPS (reset_data_for_hash, type, h); +} + +int +icmp_update_checksums (hicn_type_t type, hicn_protocol_t * h, + u16 partial_csum, size_t payload_length) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +// h->icmp.csum = 0; +// h->icmp.csum = csum(h->bytes, TCP_HDRLEN + payload_length, ~partial_csum); +// +// return CHILD_OPS(update_checksums, type, h->icmp, 0, payload_length); +} + +int +icmp_verify_checksums (hicn_type_t type, hicn_protocol_t * h, + u16 partial_csum, size_t payload_length) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +// if (csum(h->bytes, TCP_HDRLEN + payload_length, ~partial_csum) != 0) +// return HICN_LIB_ERROR_CORRUPTED_PACKET; +// return CHILD_OPS(verify_checksums, type, h->icmp, 0, payload_length); +} + +int +icmp_rewrite_interest (hicn_type_t type, hicn_protocol_t * h, + const ip46_address_t * addr_new, + ip46_address_t * addr_old) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +// u16 *icmp_checksum = &(h->icmp.csum); +// +// /* +// * Padding fields are set to zero so we can apply checksum on the +// * whole struct by interpreting it as IPv6 in all cases +// * +// * v4 code would be: +// * csum = ip_csum_sub_even (*icmp_checksum, h->ipv4.saddr.as_u32); +// * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32); +// */ +// u16 csum = ip_csum_sub_even (*icmp_checksum, h->ipv6.saddr.as_u64[0]); +// csum = ip_csum_sub_even (csum, h->ipv6.saddr.as_u64[1]); +// csum = ip_csum_add_even (csum, h->ipv6.saddr.as_u64[0]); +// csum = ip_csum_add_even (csum, h->ipv6.saddr.as_u64[1]); +// +// *icmp_checksum = ip_csum_fold (csum); +// +// return HICN_LIB_ERROR_NONE; +} + +int +icmp_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) +{ + return HICN_LIB_ERROR_NOT_IMPLEMENTED; +// u16 *icmp_checksum = &(h->icmp.csum); +// +// /* +// * Padding fields are set to zero so we can apply checksum on the +// * whole struct by interpreting it as IPv6 in all cases +// * +// * v4 code would be: +// * csum = ip_csum_sub_even (*icmp_checksum, h->ipv4.saddr.as_u32); +// * csum = ip_csum_add_even (csum, h->ipv4.saddr.as_u32); +// */ +// u16 csum = ip_csum_sub_even (*icmp_checksum, addr_old->ip6.as_u64[0]); +// csum = ip_csum_sub_even (*icmp_checksum, addr_old->ip6.as_u64[1]); +// csum = ip_csum_add_even (csum, addr_new->ip6.as_u64[0]); +// csum = ip_csum_add_even (csum, addr_new->ip6.as_u64[1]); +// +// csum = ip_csum_sub_even (csum, h->icmp.pathlabel); +// icmp_update_data_pathlabel(type, h, face_id); +// csum = ip_csum_add_even (csum, h->icmp.pathlabel); +// +// *icmp_checksum = ip_csum_fold (csum); +// +// return HICN_LIB_ERROR_NONE; +} + +int +icmp_get_current_header_length (hicn_type_t type, const hicn_protocol_t * h, + size_t * header_length) +{ + *header_length = ICMP_HDRLEN; + return HICN_LIB_ERROR_NONE; +} + +int +icmp_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 = ICMP_HDRLEN + child_header_length; + return HICN_LIB_ERROR_NONE; +} + +int +icmp_get_signature_size (hicn_type_t type, const hicn_protocol_t * h, + size_t * signature_size) +{ + return CHILD_OPS (get_signature_size, type, h, signature_size); +} + +int +icmp_set_signature_size (hicn_type_t type, hicn_protocol_t * h, + size_t signature_size) +{ + return CHILD_OPS (set_signature_size, type, h, signature_size); +} + +int +icmp_set_signature_timestamp(hicn_type_t type, hicn_protocol_t * h, + uint64_t signature_timestamp) +{ + return CHILD_OPS (set_signature_timestamp, type, h, signature_timestamp); +} + +int +icmp_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t * h, + uint64_t * signature_timestamp) +{ + return CHILD_OPS (get_signature_timestamp, type, h, signature_timestamp); +} + +int +icmp_set_validation_algorithm (hicn_type_t type, hicn_protocol_t * h, + uint8_t validation_algorithm) +{ + return CHILD_OPS (set_validation_algorithm, type, h, validation_algorithm); +} + +int +icmp_get_validation_algorithm (hicn_type_t type, const hicn_protocol_t * h, + uint8_t * validation_algorithm) +{ + return CHILD_OPS (get_validation_algorithm, type, h, validation_algorithm); +} + +int +icmp_set_key_id (hicn_type_t type, hicn_protocol_t * h, + uint8_t *key_id) +{ + return CHILD_OPS (set_key_id, type, h, key_id); +} + +int +icmp_get_key_id (hicn_type_t type, hicn_protocol_t * h, + uint8_t **key_id, uint8_t *key_id_size) +{ + return CHILD_OPS (get_key_id, type, h, key_id, key_id_size); +} + +DECLARE_HICN_OPS (icmp); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |