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
|
/* Copyright 2015 OpenMarket Ltd
*
* 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.
*/
#ifndef OLM_PICKLE_HH_
#define OLM_PICKLE_HH_
#include "olm/list.hh"
#include "olm/crypto.hh"
#include <cstring>
#include <cstdint>
namespace olm {
static std::size_t pickle_length(
const std::uint32_t & value
) {
return 4;
}
static std::uint8_t * pickle(
std::uint8_t * pos,
std::uint32_t value
) {
pos += 4;
for (unsigned i = 4; i--;) { *(--pos) = value; value >>= 8; }
return pos + 4;
}
static std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
std::uint32_t & value
) {
value = 0;
if (end - pos < 4) return end;
for (unsigned i = 4; i--;) { value <<= 8; value |= *(pos++); }
return pos;
}
static std::size_t pickle_length(
const bool & value
) {
return 1;
}
static std::uint8_t * pickle(
std::uint8_t * pos,
bool value
) {
*(pos++) = value ? 1 : 0;
return pos;
}
static std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
bool & value
) {
if (pos == end) return end;
value = *(pos++);
return pos;
}
template<typename T, std::size_t max_size>
std::size_t pickle_length(
olm::List<T, max_size> const & list
) {
std::size_t length = pickle_length(std::uint32_t(list.size()));
for (auto const & value : list) {
length += pickle_length(value);
}
return length;
}
template<typename T, std::size_t max_size>
std::uint8_t * pickle(
std::uint8_t * pos,
olm::List<T, max_size> const & list
) {
pos = pickle(pos, std::uint32_t(list.size()));
for (auto const & value : list) {
pos = pickle(pos, value);
}
return pos;
}
template<typename T, std::size_t max_size>
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::List<T, max_size> & list
) {
std::uint32_t size;
pos = unpickle(pos, end, size);
while (size--) {
T * value = list.insert(list.end());
pos = unpickle(pos, end, *value);
}
return pos;
}
static std::uint8_t * pickle_bytes(
std::uint8_t * pos,
std::uint8_t const * bytes, std::size_t bytes_length
) {
std::memcpy(pos, bytes, bytes_length);
return pos + bytes_length;
}
static std::uint8_t const * unpickle_bytes(
std::uint8_t const * pos, std::uint8_t const * end,
std::uint8_t * bytes, std::size_t bytes_length
) {
if (end - pos < bytes_length) return end;
std::memcpy(bytes, pos, bytes_length);
return pos + bytes_length;
}
std::size_t pickle_length(
const Curve25519PublicKey & value
);
std::uint8_t * pickle(
std::uint8_t * pos,
const Curve25519PublicKey & value
);
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
Curve25519PublicKey & value
);
std::size_t pickle_length(
const Curve25519KeyPair & value
);
std::uint8_t * pickle(
std::uint8_t * pos,
const Curve25519KeyPair & value
);
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
Curve25519KeyPair & value
);
std::size_t pickle_length(
const Ed25519PublicKey & value
);
std::uint8_t * pickle(
std::uint8_t * pos,
const Ed25519PublicKey & value
);
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
Ed25519PublicKey & value
);
std::size_t pickle_length(
const Ed25519KeyPair & value
);
std::uint8_t * pickle(
std::uint8_t * pos,
const Ed25519KeyPair & value
);
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
Ed25519KeyPair & value
);
} // namespace olm
#endif /* OLM_PICKLE_HH */
|
