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
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
|
/*
* agent_read_config.c
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-features.h>
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#else
#include <sys/types.h>
#endif
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_NETINET_IN_SYSTM_H
#include <netinet/in_systm.h>
#endif
#if HAVE_NETINET_IP_H
#include <netinet/ip.h>
#endif
#ifdef NETSNMP_ENABLE_IPV6
#if HAVE_NETINET_IP6_H
#include <netinet/ip6.h>
#endif
#endif
#if HAVE_SYS_QUEUE_H
#include <sys/queue.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#if HAVE_SYS_SOCKETVAR_H
#ifndef dynix
#include <sys/socketvar.h>
#else
#include <sys/param.h>
#endif
#endif
#endif
#if HAVE_SYS_STREAM_H
# ifdef sysv5UnixWare7
# define _KMEMUSER 1 /* <sys/stream.h> needs this for queue_t */
# endif
#include <sys/stream.h>
#endif
#if HAVE_NET_ROUTE_H
#include <net/route.h>
#endif
#if HAVE_NETINET_IP_VAR_H
#include <netinet/ip_var.h>
#endif
#ifdef NETSNMP_ENABLE_IPV6
#if HAVE_NETNETSNMP_ENABLE_IPV6_IP6_VAR_H
#include <netinet6/ip6_var.h>
#endif
#endif
#if HAVE_NETINET_IN_PCB_H
#include <netinet/in_pcb.h>
#endif
#if HAVE_INET_MIB2_H
#include <inet/mib2.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#ifdef HAVE_GRP_H
#include <grp.h>
#endif
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "mibgroup/struct.h"
#include <net-snmp/agent/agent_trap.h>
#include "snmpd.h"
#include <net-snmp/agent/agent_callbacks.h>
#include <net-snmp/agent/table.h>
#include <net-snmp/agent/table_iterator.h>
#include <net-snmp/agent/table_data.h>
#include <net-snmp/agent/table_dataset.h>
#include "agent_module_includes.h"
#include "mib_module_includes.h"
netsnmp_feature_child_of(agent_read_config_all, libnetsnmpagent)
netsnmp_feature_child_of(snmpd_unregister_config_handler, agent_read_config_all)
#ifdef HAVE_UNISTD_H
void
snmpd_set_agent_user(const char *token, char *cptr)
{
if (cptr[0] == '#') {
char *ecp;
int uid;
uid = strtoul(cptr + 1, &ecp, 10);
if (*ecp != 0) {
config_perror("Bad number");
} else {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
}
#if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H)
} else {
struct passwd *info;
info = getpwnam(cptr);
if (info)
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, info->pw_uid);
else
config_perror("User not found in passwd database");
endpwent();
#endif
}
}
void
snmpd_set_agent_group(const char *token, char *cptr)
{
if (cptr[0] == '#') {
char *ecp;
int gid = strtoul(cptr + 1, &ecp, 10);
if (*ecp != 0) {
config_perror("Bad number");
} else {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid);
}
#if defined(HAVE_GETGRNAM) && defined(HAVE_GRP_H)
} else {
struct group *info;
info = getgrnam(cptr);
if (info)
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, info->gr_gid);
else
config_perror("Group not found in group database");
endgrent();
#endif
}
}
#endif
#ifndef NETSNMP_NO_LISTEN_SUPPORT
void
snmpd_set_agent_address(const char *token, char *cptr)
{
char buf[SPRINT_MAX_LEN];
char *ptr;
/*
* has something been specified before?
*/
ptr = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS);
if (ptr) {
/*
* append to the older specification string
*/
snprintf(buf, sizeof(buf), "%s,%s", ptr, cptr);
buf[sizeof(buf) - 1] = '\0';
} else {
strlcpy(buf, cptr, sizeof(buf));
}
DEBUGMSGTL(("snmpd_ports", "port spec: %s\n", buf));
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, buf);
}
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
void
init_agent_read_config(const char *app)
{
if (app != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE, app);
} else {
app = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
}
register_app_config_handler("authtrapenable",
snmpd_parse_config_authtrap, NULL,
"1 | 2\t\t(1 = enable, 2 = disable)");
register_app_config_handler("pauthtrapenable",
snmpd_parse_config_authtrap, NULL, NULL);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == MASTER_AGENT) {
#ifndef NETSNMP_DISABLE_SNMPV1
register_app_config_handler("trapsink",
snmpd_parse_config_trapsink,
snmpd_free_trapsinks,
"host [community] [port]");
#endif
#ifndef NETSNMP_DISABLE_SNMPV2C
register_app_config_handler("trap2sink",
snmpd_parse_config_trap2sink,
snmpd_free_trapsinks,
"host [community] [port]");
register_app_config_handler("informsink",
snmpd_parse_config_informsink,
snmpd_free_trapsinks,
"host [community] [port]");
#endif
register_app_config_handler("trapsess",
snmpd_parse_config_trapsess,
snmpd_free_trapsinks,
"[snmpcmdargs] host");
}
#if !defined(NETSNMP_DISABLE_SNMPV1) || !defined(NETSNMP_DISABLE_SNMPV2C)
register_app_config_handler("trapcommunity",
snmpd_parse_config_trapcommunity,
snmpd_free_trapcommunity,
"community-string");
#endif /* support for community based SNMP */
netsnmp_ds_register_config(ASN_OCTET_STR, app, "v1trapaddress",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_TRAP_ADDR);
#ifdef HAVE_UNISTD_H
register_app_config_handler("agentuser",
snmpd_set_agent_user, NULL, "userid");
register_app_config_handler("agentgroup",
snmpd_set_agent_group, NULL, "groupid");
#endif
#ifndef NETSNMP_NO_LISTEN_SUPPORT
register_app_config_handler("agentaddress",
snmpd_set_agent_address, NULL,
"SNMP bind address");
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
netsnmp_ds_register_config(ASN_BOOLEAN, app, "quit",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "leave_pidfile",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "dontLogTCPWrappersConnects",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DONT_LOG_TCPWRAPPERS_CONNECTS);
netsnmp_ds_register_config(ASN_INTEGER, app, "maxGetbulkRepeats",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_MAX_GETBULKREPEATS);
netsnmp_ds_register_config(ASN_INTEGER, app, "maxGetbulkResponses",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_MAX_GETBULKRESPONSES);
netsnmp_init_handler_conf();
#include "agent_module_dot_conf.h"
#include "mib_module_dot_conf.h"
#ifdef TESTING
print_config_handlers();
#endif
}
void
update_config(void)
{
snmp_call_callbacks(SNMP_CALLBACK_APPLICATION,
SNMPD_CALLBACK_PRE_UPDATE_CONFIG, NULL);
free_config();
#ifdef USING_MIBII_VACM_CONF_MODULE
vacm_standard_views(0,0,NULL,NULL);
#endif
read_configs();
}
void
snmpd_register_config_handler(const char *token,
void (*parser) (const char *, char *),
void (*releaser) (void), const char *help)
{
DEBUGMSGTL(("snmpd_register_app_config_handler",
"registering .conf token for \"%s\"\n", token));
register_app_config_handler(token, parser, releaser, help);
}
void
snmpd_register_const_config_handler(const char *token,
void (*parser) (const char *, const char *),
void (*releaser) (void), const char *help)
{
DEBUGMSGTL(("snmpd_register_app_config_handler",
"registering .conf token for \"%s\"\n", token));
register_app_config_handler(token, (void(*)(const char *, char *))parser,
releaser, help);
}
#ifdef NETSNMP_FEATURE_REQUIRE_SNMPD_UNREGISTER_CONFIG_HANDLER
netsnmp_feature_require(unregister_app_config_handler)
#endif /* NETSNMP_FEATURE_REQUIRE_SNMPD_UNREGISTER_CONFIG_HANDLER */
#ifndef NETSNMP_FEATURE_REMOVE_SNMPD_UNREGISTER_CONFIG_HANDLER
void
snmpd_unregister_config_handler(const char *token)
{
unregister_app_config_handler(token);
}
#endif /* NETSNMP_FEATURE_REMOVE_SNMPD_UNREGISTER_CONFIG_HANDLER */
/*
* this function is intended for use by mib-modules to store permenant
* configuration information generated by sets or persistent counters
*/
void
snmpd_store_config(const char *line)
{
read_app_config_store(line);
}
|
