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
|
/*
* ulogd_outpout_NACCT.c
*
* ulogd output plugin for accounting which tries to stay mostly
* compatible with nacct output.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Holger Eitzenberger <holger@eitzenberger.org> Astaro AG 2008
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <arpa/inet.h>
#include <ulogd/ulogd.h>
#include <ulogd/conffile.h>
#define NACCT_FILE_DEFAULT "/var/log/nacctdata.log"
#define HIPQUAD(addr) \
((unsigned char *)&addr)[3], \
((unsigned char *)&addr)[2], \
((unsigned char *)&addr)[1], \
((unsigned char *)&addr)[0]
/* config accessors (lazy me...) */
#define NACCT_CFG_FILE(pi) ((pi)->config_kset->ces[0].u.string)
#define NACCT_CFG_SYNC(pi) ((pi)->config_kset->ces[1].u.value)
#define KEY(pi,idx) ((pi)->input.keys[(idx)].u.source)
/* input keys */
#define KEY_IP_SADDR(pi) KEY(pi, 0)
#define KEY_IP_DADDR(pi) KEY(pi, 1)
#define KEY_IP_PROTO(pi) KEY(pi, 2)
#define KEY_L4_SPORT(pi) KEY(pi, 3)
#define KEY_L4_DPORT(pi) KEY(pi, 4)
#define KEY_RAW_PKTLEN(pi) KEY(pi, 5)
#define KEY_RAW_PKTCNT(pi) KEY(pi, 6)
#define KEY_ICMP_CODE(pi) KEY(pi, 7)
#define KEY_ICMP_TYPE(pi) KEY(pi, 8)
#define KEY_FLOW_START(pi) KEY(pi, 11)
#define KEY_FLOW_END(pi) KEY(pi, 13)
struct nacct_priv {
FILE *of;
};
static int
nacct_interp(struct ulogd_pluginstance *pi)
{
struct nacct_priv *priv = (struct nacct_priv *)&pi->private;
static char buf[80];
/* try to be as close to nacct as possible. Instead of nacct's
'timestamp' value use 'flow.end.sec' */
if (KEY_IP_PROTO(pi)->u.value.ui8 == IPPROTO_ICMP) {
snprintf(buf, sizeof(buf),
"%u\t%u\t%u.%u.%u.%u\t%u\t%u.%u.%u.%u\t%u\t%u\t%u",
KEY_FLOW_END(pi)->u.value.ui32,
KEY_IP_PROTO(pi)->u.value.ui8,
HIPQUAD(KEY_IP_SADDR(pi)->u.value.ui32),
KEY_ICMP_TYPE(pi)->u.value.ui8,
HIPQUAD(KEY_IP_DADDR(pi)->u.value.ui32),
KEY_ICMP_CODE(pi)->u.value.ui8,
KEY_RAW_PKTCNT(pi)->u.value.ui32,
KEY_RAW_PKTLEN(pi)->u.value.ui32);
} else {
snprintf(buf, sizeof(buf),
"%u\t%u\t%u.%u.%u.%u\t%u\t%u.%u.%u.%u\t%u\t%u\t%u",
KEY_FLOW_END(pi)->u.value.ui32,
KEY_IP_PROTO(pi)->u.value.ui8,
HIPQUAD(KEY_IP_SADDR(pi)->u.value.ui32),
KEY_L4_SPORT(pi)->u.value.ui8,
HIPQUAD(KEY_IP_DADDR(pi)->u.value.ui32),
KEY_L4_DPORT(pi)->u.value.ui8,
KEY_RAW_PKTCNT(pi)->u.value.ui32,
KEY_RAW_PKTLEN(pi)->u.value.ui32);
}
fprintf(priv->of, "%s\n", buf);
if (NACCT_CFG_SYNC(pi) != 0)
fflush(priv->of);
return 0;
}
static struct config_keyset nacct_kset = {
.num_ces = 2,
.ces = {
{
.key = "file",
.type = CONFIG_TYPE_STRING,
.options = CONFIG_OPT_NONE,
.u = {.string = NACCT_FILE_DEFAULT },
},
{
.key = "sync",
.type = CONFIG_TYPE_INT,
.options = CONFIG_OPT_NONE,
.u = { .value = 0 },
},
},
};
static void
sighup_handler_print(struct ulogd_pluginstance *pi, int signal)
{
struct nacct_priv *oi = (struct nacct_priv *)&pi->private;
switch (signal) {
case SIGHUP:
{
ulogd_log(ULOGD_NOTICE, "NACCT: reopening logfile\n");
fclose(oi->of);
oi->of = fopen(NACCT_CFG_FILE(pi), "a");
if (!oi->of)
ulogd_log(ULOGD_ERROR, "%s: %s\n", NACCT_CFG_FILE(pi),
strerror(errno));
break;
}
default:
break;
}
}
static int
nacct_conf(struct ulogd_pluginstance *pi,
struct ulogd_pluginstance_stack *stack)
{
int ret;
if ((ret = ulogd_wildcard_inputkeys(pi)) < 0)
return ret;
if ((ret = config_parse_file(pi->id, pi->config_kset)) < 0)
return ret;
return 0;
}
static int
nacct_init(struct ulogd_pluginstance *pi)
{
struct nacct_priv *op = (struct nacct_priv *)&pi->private;
if ((op->of = fopen(NACCT_CFG_FILE(pi), "a")) == NULL) {
ulogd_log(ULOGD_FATAL, "%s: %s\n",
NACCT_CFG_FILE(pi), strerror(errno));
return -1;
}
return 0;
}
static int
nacct_fini(struct ulogd_pluginstance *pi)
{
struct nacct_priv *op = (struct nacct_priv *)&pi->private;
if (op->of != stdout)
fclose(op->of);
return 0;
}
static struct ulogd_plugin nacct_plugin = {
.name = "NACCT",
.input = {
.type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
},
.output = {
.type = ULOGD_DTYPE_SINK,
},
.configure = &nacct_conf,
.interp = &nacct_interp,
.start = &nacct_init,
.stop = &nacct_fini,
.signal = &sighup_handler_print,
.config_kset = &nacct_kset,
.version = ULOGD_VERSION,
};
void __attribute__ ((constructor)) init(void);
void
init(void)
{
ulogd_register_plugin(&nacct_plugin);
}
|
