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
|
/* ulogd_filter_IP2STR.c
*
* ulogd interpreter plugin for internal IP storage format to string conversion
*
* (C) 2008 by Eric Leblond <eric@inl.fr>
*
* Based on ulogd_filter_IFINDEX.c Harald Welte <laforge@gnumonks.org>
*
* 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
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <ulogd/ulogd.h>
#include <netinet/if_ether.h>
enum input_keys {
KEY_OOB_FAMILY,
KEY_OOB_PROTOCOL,
KEY_IP_SADDR,
START_KEY = KEY_IP_SADDR,
KEY_IP_DADDR,
KEY_ORIG_IP_SADDR,
KEY_ORIG_IP_DADDR,
KEY_REPLY_IP_SADDR,
KEY_REPLY_IP_DADDR,
KEY_ARP_SPA,
KEY_ARP_TPA,
MAX_KEY = KEY_ARP_TPA,
};
static struct ulogd_key ip2str_inp[] = {
[KEY_OOB_FAMILY] = {
.type = ULOGD_RET_UINT8,
.flags = ULOGD_RETF_NONE,
.name = "oob.family",
},
[KEY_OOB_PROTOCOL] = {
.type = ULOGD_RET_UINT16,
.flags = ULOGD_RETF_NONE,
.name = "oob.protocol",
},
[KEY_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "ip.saddr",
},
[KEY_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "ip.daddr",
},
[KEY_ORIG_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "orig.ip.saddr",
},
[KEY_ORIG_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "orig.ip.daddr",
},
[KEY_REPLY_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "reply.ip.saddr",
},
[KEY_REPLY_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "reply.ip.daddr",
},
[KEY_ARP_SPA] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "arp.saddr",
},
[KEY_ARP_TPA] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "arp.daddr",
},
};
static struct ulogd_key ip2str_keys[] = {
{
.type = ULOGD_RET_STRING,
.name = "ip.saddr.str",
.cim_name = "src_ip",
},
{
.type = ULOGD_RET_STRING,
.name = "ip.daddr.str",
.cim_name = "dest_ip",
},
{
.type = ULOGD_RET_STRING,
.name = "orig.ip.saddr.str",
.cim_name = "src_ip",
},
{
.type = ULOGD_RET_STRING,
.name = "orig.ip.daddr.str",
.cim_name = "dest_ip",
},
{
.type = ULOGD_RET_STRING,
.name = "reply.ip.saddr.str",
},
{
.type = ULOGD_RET_STRING,
.name = "reply.ip.daddr.str",
},
{
.type = ULOGD_RET_STRING,
.name = "arp.saddr.str",
},
{
.type = ULOGD_RET_STRING,
.name = "arp.daddr.str",
},
};
static char ipstr_array[MAX_KEY - START_KEY + 1][INET6_ADDRSTRLEN];
static int ip2str(struct ulogd_key *inp, int index, int oindex)
{
char family = ikey_get_u8(&inp[KEY_OOB_FAMILY]);
char convfamily = family;
if (family == AF_BRIDGE) {
if (!pp_is_valid(inp, KEY_OOB_PROTOCOL)) {
ulogd_log(ULOGD_NOTICE,
"No protocol inside AF_BRIDGE packet\n");
return ULOGD_IRET_ERR;
}
switch (ikey_get_u16(&inp[KEY_OOB_PROTOCOL])) {
case ETH_P_IPV6:
convfamily = AF_INET6;
break;
case ETH_P_IP:
convfamily = AF_INET;
break;
case ETH_P_ARP:
convfamily = AF_INET;
break;
default:
ulogd_log(ULOGD_NOTICE,
"Unknown protocol inside AF_BRIDGE packet\n");
return ULOGD_IRET_ERR;
}
}
switch (convfamily) {
uint32_t ip;
case AF_INET6:
inet_ntop(AF_INET6,
ikey_get_u128(&inp[index]),
ipstr_array[oindex], sizeof(ipstr_array[oindex]));
break;
case AF_INET:
ip = ikey_get_u32(&inp[index]);
inet_ntop(AF_INET, &ip,
ipstr_array[oindex], sizeof(ipstr_array[oindex]));
break;
default:
/* TODO error handling */
ulogd_log(ULOGD_NOTICE, "Unknown protocol family\n");
return ULOGD_IRET_ERR;
}
return ULOGD_IRET_OK;
}
static int interp_ip2str(struct ulogd_pluginstance *pi)
{
struct ulogd_key *ret = pi->output.keys;
struct ulogd_key *inp = pi->input.keys;
int i;
int fret;
/* Iter on all addr fields */
for (i = START_KEY; i <= MAX_KEY; i++) {
if (pp_is_valid(inp, i)) {
fret = ip2str(inp, i, i - START_KEY);
if (fret != ULOGD_IRET_OK)
return fret;
okey_set_ptr(&ret[i - START_KEY],
ipstr_array[i-START_KEY]);
}
}
return ULOGD_IRET_OK;
}
static struct ulogd_plugin ip2str_plugin = {
.name = "IP2STR",
.input = {
.keys = ip2str_inp,
.num_keys = ARRAY_SIZE(ip2str_inp),
.type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
},
.output = {
.keys = ip2str_keys,
.num_keys = ARRAY_SIZE(ip2str_keys),
.type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
},
.interp = &interp_ip2str,
.version = VERSION,
};
void __attribute__ ((constructor)) init(void);
void init(void)
{
ulogd_register_plugin(&ip2str_plugin);
}
|
