1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* 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)
{
/* *INDENT-OFF* */
h->ah = (_ah_header_t)
{
.nh = (u8)0,
.payloadlen = (u8)0,
.reserved = (u16)0,
};
/* *INDENT-ON* */
return CHILD_OPS (init_packet_header, type, h);
}
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 (hicn_type_t type, hicn_protocol_t * h, uint8_t ** signature)
{
*signature = h->ah.validationPayload;
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 = (u8) (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)
{
uint64_t netwok_order_timestamp = htonll (signature_timestamp);
memcpy (h->ah.timestamp_as_u8, &netwok_order_timestamp, sizeof (uint64_t));
return HICN_LIB_ERROR_NONE;
}
int
ah_get_signature_timestamp (hicn_type_t type, const hicn_protocol_t * h,
uint64_t * signature_timestamp)
{
memcpy (signature_timestamp, h->ah.timestamp_as_u8, sizeof (uint64_t));
*signature_timestamp = ntohll (*signature_timestamp);
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:
*/
|
