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
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
/*
* Copyright (C) 2012 Martin Willi
* Copyright (C) 2012 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "stroke_counter.h"
#include <threading/spinlock.h>
ENUM(stroke_counter_type_names,
COUNTER_INIT_IKE_SA_REKEY, COUNTER_OUT_INFORMATIONAL_RSP,
"ikeInitRekey",
"ikeRspRekey",
"ikeChildSaRekey",
"ikeInInvalid",
"ikeInInvalidSpi",
"ikeInInitReq",
"ikeInInitRsp",
"ikeOutInitReq",
"ikeOutInitRsp",
"ikeInAuthReq",
"ikeInAuthRsp",
"ikeOutAuthReq",
"ikeOutAuthRsp",
"ikeInCrChildReq",
"ikeInCrChildRsp",
"ikeOutCrChildReq",
"ikeOutCrChildRsp",
"ikeInInfoReq",
"ikeInInfoRsp",
"ikeOutInfoReq",
"ikeOutInfoRsp",
);
typedef struct private_stroke_counter_t private_stroke_counter_t;
/**
* Private data of an stroke_counter_t object.
*/
struct private_stroke_counter_t {
/**
* Public stroke_counter_t interface.
*/
stroke_counter_t public;
/**
* Counter values
*/
u_int64_t counter[COUNTER_MAX];
/**
* Lock for counter values
*/
spinlock_t *lock;
};
METHOD(listener_t, alert, bool,
private_stroke_counter_t *this, ike_sa_t *ike_sa,
alert_t alert, va_list args)
{
stroke_counter_type_t type;
switch (alert)
{
case ALERT_INVALID_IKE_SPI:
type = COUNTER_IN_INVALID_IKE_SPI;
break;
case ALERT_PARSE_ERROR_HEADER:
case ALERT_PARSE_ERROR_BODY:
type = COUNTER_IN_INVALID;
break;
default:
return TRUE;
}
this->lock->lock(this->lock);
this->counter[type]++;
this->lock->unlock(this->lock);
return TRUE;
}
METHOD(listener_t, ike_rekey, bool,
private_stroke_counter_t *this, ike_sa_t *old, ike_sa_t *new)
{
stroke_counter_type_t type;
ike_sa_id_t *id;
id = new->get_id(new);
if (id->is_initiator(id))
{
type = COUNTER_INIT_IKE_SA_REKEY;
}
else
{
type = COUNTER_RESP_IKE_SA_REKEY;
}
this->lock->lock(this->lock);
this->counter[type]++;
this->lock->unlock(this->lock);
return TRUE;
}
METHOD(listener_t, child_rekey, bool,
private_stroke_counter_t *this, ike_sa_t *ike_sa,
child_sa_t *old, child_sa_t *new)
{
this->lock->lock(this->lock);
this->counter[COUNTER_CHILD_SA_REKEY]++;
this->lock->unlock(this->lock);
return TRUE;
}
METHOD(listener_t, message_hook, bool,
private_stroke_counter_t *this, ike_sa_t *ike_sa, message_t *message,
bool incoming, bool plain)
{
stroke_counter_type_t type;
bool request;
if ((incoming && !plain) || (!incoming && !plain))
{ /* handle each message only once */
return TRUE;
}
request = message->get_request(message);
switch (message->get_exchange_type(message))
{
case IKE_SA_INIT:
if (incoming)
{
type = request ? COUNTER_IN_IKE_SA_INIT_REQ
: COUNTER_IN_IKE_SA_INIT_RSP;
}
else
{
type = request ? COUNTER_OUT_IKE_SA_INIT_REQ
: COUNTER_OUT_IKE_SA_INIT_RES;
}
break;
case IKE_AUTH:
if (incoming)
{
type = request ? COUNTER_IN_IKE_AUTH_REQ
: COUNTER_IN_IKE_AUTH_RSP;
}
else
{
type = request ? COUNTER_OUT_IKE_AUTH_REQ
: COUNTER_OUT_IKE_AUTH_RSP;
}
break;
case CREATE_CHILD_SA:
if (incoming)
{
type = request ? COUNTER_IN_CREATE_CHILD_SA_REQ
: COUNTER_IN_CREATE_CHILD_SA_RSP;
}
else
{
type = request ? COUNTER_OUT_CREATE_CHILD_SA_REQ
: COUNTER_OUT_CREATE_CHILD_SA_RSP;
}
break;
case INFORMATIONAL:
if (incoming)
{
type = request ? COUNTER_IN_INFORMATIONAL_REQ
: COUNTER_IN_INFORMATIONAL_RSP;
}
else
{
type = request ? COUNTER_OUT_INFORMATIONAL_REQ
: COUNTER_OUT_INFORMATIONAL_RSP;
}
break;
default:
return TRUE;
}
this->lock->lock(this->lock);
this->counter[type]++;
this->lock->unlock(this->lock);
return TRUE;
}
METHOD(stroke_counter_t, print, void,
private_stroke_counter_t *this, FILE *out)
{
u_int64_t counter[COUNTER_MAX];
int i;
/* Take a snapshot to have congruent results, */
this->lock->lock(this->lock);
for (i = 0; i < countof(this->counter); i++)
{
counter[i] = this->counter[i];
}
this->lock->unlock(this->lock);
fprintf(out, "\nList of IKE counters:\n\n");
/* but do blocking write without the lock. */
for (i = 0; i < countof(this->counter); i++)
{
fprintf(out, "%-18N %12llu\n", stroke_counter_type_names, i, counter[i]);
}
}
METHOD(stroke_counter_t, destroy, void,
private_stroke_counter_t *this)
{
this->lock->destroy(this->lock);
free(this);
}
/**
* See header
*/
stroke_counter_t *stroke_counter_create()
{
private_stroke_counter_t *this;
INIT(this,
.public = {
.listener = {
.alert = _alert,
.ike_rekey = _ike_rekey,
.child_rekey = _child_rekey,
.message = _message_hook,
},
.print = _print,
.destroy = _destroy,
},
.lock = spinlock_create(),
);
return &this->public;
}
|
