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/*
* Copyright (c) 2021 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 <hicn/error.h>
#include <string.h>
#include "icmp.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_path_label (icmp, UNEXPECTED);
DECLARE_set_data_path_label (icmp, UNEXPECTED);
DECLARE_update_data_path_label (icmp, UNEXPECTED);
DECLARE_get_lifetime (icmp, UNEXPECTED);
DECLARE_set_lifetime (icmp, UNEXPECTED);
// DECLARE_get_payload_len (icmp, UNEXPECTED);
DECLARE_set_payload_len (icmp, UNEXPECTED);
DECLARE_get_payload_type (icmp, UNEXPECTED);
DECLARE_set_payload_type (icmp, UNEXPECTED);
DECLARE_get_signature (icmp, UNEXPECTED);
DECLARE_has_signature (icmp, UNEXPECTED);
DECLARE_is_last_data (icmp, UNEXPECTED);
DECLARE_set_last_data (icmp, UNEXPECTED);
int
icmp_init_packet_header (hicn_packet_buffer_t *pkbuf, size_t pos)
{
pkbuf->icmp = pkbuf->len;
if (ICMP_HDRLEN > pkbuf->buffer_size - pkbuf->len)
return -1;
pkbuf->len += ICMP_HDRLEN;
_icmp_header_t *icmp = pkbuf_get_icmp (pkbuf);
*icmp = (_icmp_header_t){
.type = 0,
.code = 0,
.csum = 0,
};
return CALL_CHILD (init_packet_header, pkbuf, pos);
}
int
icmp_reset_interest_for_hash (hicn_packet_buffer_t *pkbuf, size_t pos)
{
_icmp_header_t *icmp = pkbuf_get_icmp (pkbuf);
icmp->csum = 0;
return CALL_CHILD (reset_interest_for_hash, pkbuf, pos);
}
int
icmp_reset_data_for_hash (hicn_packet_buffer_t *pkbuf, size_t pos)
{
_icmp_header_t *icmp = pkbuf_get_icmp (pkbuf);
icmp->csum = 0;
return CALL_CHILD (reset_data_for_hash, pkbuf, pos);
}
int
icmp_update_checksums (const hicn_packet_buffer_t *pkbuf, size_t pos,
u16 partial_csum, size_t payload_len)
{
return HICN_LIB_ERROR_NOT_IMPLEMENTED;
// icmp->csum = 0;
// icmp->csum = csum(h->bytes, TCP_HDRLEN + payload_len,
// ~partial_csum);
//
// return CALL_CHILD(update_checksums, pkbuf, pos->icmp, 0,
// payload_len);
}
int
icmp_update_checksums_incremental (const hicn_packet_buffer_t *pkbuf,
size_t pos, u16 *old_val, u16 *new_val,
u8 size, bool skip_first)
{
return HICN_LIB_ERROR_NOT_IMPLEMENTED;
}
int
icmp_verify_checksums (const hicn_packet_buffer_t *pkbuf, size_t pos,
u16 partial_csum, size_t payload_len)
{
return HICN_LIB_ERROR_NOT_IMPLEMENTED;
// if (csum(h->bytes, TCP_HDRLEN + payload_len, ~partial_csum) != 0)
// return HICN_LIB_ERROR_CORRUPTED_PACKET;
// return CALL_CHILD(verify_checksums, pkbuf, pos->icmp, 0,
// payload_len);
}
int
icmp_rewrite_interest (const hicn_packet_buffer_t *pkbuf, size_t pos,
const hicn_ip_address_t *addr_new,
hicn_ip_address_t *addr_old)
{
return HICN_LIB_ERROR_NOT_IMPLEMENTED;
// u16 *icmp_checksum = &(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 (const hicn_packet_buffer_t *pkbuf, size_t pos,
const hicn_ip_address_t *addr_new,
hicn_ip_address_t *addr_old, const hicn_faceid_t face_id,
u8 reset_pl)
{
return HICN_LIB_ERROR_NOT_IMPLEMENTED;
// u16 *icmp_checksum = &(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, icmp->path_label);
// icmp_update_data_path_label(pkbuf, pos, face_id);
// csum = ip_csum_add_even (csum, icmp->path_label);
//
// *icmp_checksum = ip_csum_fold (csum);
//
// return HICN_LIB_ERROR_NONE;
}
int
icmp_get_type (const hicn_packet_buffer_t *pkbuf, const size_t pos,
hicn_packet_type_t *type)
{
return CALL_CHILD (get_type, pkbuf, pos, type);
}
int
icmp_set_type (const hicn_packet_buffer_t *pkbuf, size_t pos,
hicn_packet_type_t type)
{
return CALL_CHILD (set_type, pkbuf, pos, type);
}
int
icmp_get_signature_size (const hicn_packet_buffer_t *pkbuf, size_t pos,
size_t *signature_size)
{
return CALL_CHILD (get_signature_size, pkbuf, pos, signature_size);
}
int
icmp_set_signature_size (const hicn_packet_buffer_t *pkbuf, size_t pos,
size_t signature_size)
{
return CALL_CHILD (set_signature_size, pkbuf, pos, signature_size);
}
int
icmp_set_signature_padding (const hicn_packet_buffer_t *pkbuf, size_t pos,
size_t padding)
{
return CALL_CHILD (set_signature_padding, pkbuf, pos, padding);
}
int
icmp_get_signature_padding (const hicn_packet_buffer_t *pkbuf, size_t pos,
size_t *padding)
{
return CALL_CHILD (get_signature_padding, pkbuf, pos, padding);
}
int
icmp_set_signature_timestamp (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint64_t signature_timestamp)
{
return CALL_CHILD (set_signature_timestamp, pkbuf, pos, signature_timestamp);
}
int
icmp_get_signature_timestamp (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint64_t *signature_timestamp)
{
return CALL_CHILD (get_signature_timestamp, pkbuf, pos, signature_timestamp);
}
int
icmp_set_validation_algorithm (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint8_t validation_algorithm)
{
return CALL_CHILD (set_validation_algorithm, pkbuf, pos,
validation_algorithm);
}
int
icmp_get_validation_algorithm (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint8_t *validation_algorithm)
{
return CALL_CHILD (get_validation_algorithm, pkbuf, pos,
validation_algorithm);
}
int
icmp_set_key_id (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint8_t *key_id, size_t key_len)
{
return CALL_CHILD (set_key_id, pkbuf, pos, key_id, key_len);
}
int
icmp_get_key_id (const hicn_packet_buffer_t *pkbuf, size_t pos,
uint8_t **key_id, uint8_t *key_id_size)
{
return CALL_CHILD (get_key_id, pkbuf, pos, key_id, key_id_size);
}
DECLARE_HICN_OPS (icmp, ICMP_HDRLEN);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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