int
snmp_parse_args(int argc,
char **argv,
netsnmp_session * session, const char *localOpts,
void (*proc) (int, char *const *, int))
{
return netsnmp_parse_args(argc, argv, session, localOpts, proc, 0);
}
void
snmpd_parse_config_trapsess(const char *word, char *cptr)
{
char *argv[MAX_ARGS], *cp = cptr;
int argn, arg, rc;
netsnmp_session session, *ss;
netsnmp_transport *transport;
size_t len;
/*
* inform or trap? default to trap
*/
traptype = SNMP_MSG_TRAP2;
/*
* create the argv[] like array
*/
argv[0] = strdup("snmpd-trapsess"); /* bogus entry for getopt() */
for (argn = 1; cp && argn < MAX_ARGS; argn++) {
char tmp[SPRINT_MAX_LEN];
cp = copy_nword(cp, tmp, SPRINT_MAX_LEN);
argv[argn] = strdup(tmp);
}
arg = netsnmp_parse_args(argn, argv, &session, "C:", trapOptProc,
NETSNMP_PARSE_ARGS_NOLOGGING |
NETSNMP_PARSE_ARGS_NOZERO);
transport = netsnmp_transport_open_client("snmptrap", session.peername);
if ((rc = netsnmp_sess_config_and_open_transport(&session, transport))
!= SNMPERR_SUCCESS) {
session.s_snmp_errno = rc;
session.s_errno = 0;
return;
}
ss = snmp_add(&session, transport, NULL, NULL);
for (; argn > 0; argn--) {
free(argv[argn - 1]);
}
if (!ss) {
config_perror
("snmpd: failed to parse this line or the remote trap receiver is down. Possible cause:");
snmp_sess_perror("snmpd: snmpd_parse_config_trapsess()", &session);
return;
}
/*
* If this is an SNMPv3 TRAP session, then the agent is
* the authoritative engine, so set the engineID accordingly
*/
if (ss->version == SNMP_VERSION_3 &&
traptype != SNMP_MSG_INFORM &&
ss->securityEngineIDLen == 0) {
u_char tmp[SPRINT_MAX_LEN];
len = snmpv3_get_engineID( tmp, sizeof(tmp));
memdup(&ss->securityEngineID, tmp, len);
ss->securityEngineIDLen = len;
}
#ifndef NETSNMP_DISABLE_SNMPV1
if (ss->version == SNMP_VERSION_1)
traptype = SNMP_MSG_TRAP;
#endif
add_trap_session(ss, traptype, (traptype == SNMP_MSG_INFORM), ss->version);
}
void
proxy_parse_config(const char *token, char *line)
{
/*
* proxy args [base-oid] [remap-to-remote-oid]
*/
netsnmp_session session, *ss;
struct simple_proxy *newp, **listpp;
char args[MAX_ARGS][SPRINT_MAX_LEN], *argv[MAX_ARGS];
int argn, arg;
char *cp;
netsnmp_handler_registration *reg;
context_string = NULL;
DEBUGMSGTL(("proxy_config", "entering\n"));
/*
* create the argv[] like array
*/
strcpy(argv[0] = args[0], "snmpd-proxy"); /* bogus entry for getopt() */
for (argn = 1, cp = line; cp && argn < MAX_ARGS;) {
argv[argn] = args[argn];
cp = copy_nword(cp, argv[argn], SPRINT_MAX_LEN);
argn++;
}
for (arg = 0; arg < argn; arg++) {
DEBUGMSGTL(("proxy_args", "final args: %d = %s\n", arg,
argv[arg]));
}
DEBUGMSGTL(("proxy_config", "parsing args: %d\n", argn));
/* Call special parse_args that allows for no specified community string */
arg = netsnmp_parse_args(argn, argv, &session, "C:", proxyOptProc,
NETSNMP_PARSE_ARGS_NOLOGGING |
NETSNMP_PARSE_ARGS_NOZERO);
/* reset this in case we modified it */
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_IGNORE_NO_COMMUNITY, 0);
if (arg < 0) {
config_perror("failed to parse proxy args");
return;
}
DEBUGMSGTL(("proxy_config", "done parsing args\n"));
if (arg >= argn) {
config_perror("missing base oid");
return;
}
/*
* usm_set_reportErrorOnUnknownID(0);
*
* hack, stupid v3 ASIs.
*/
/*
* XXX: on a side note, we don't really need to be a reference
* platform any more so the proper thing to do would be to fix
* snmplib/snmpusm.c to pass in the pdu type to usm_process_incoming
* so this isn't needed.
*/
ss = snmp_open(&session);
/*
* usm_set_reportErrorOnUnknownID(1);
*/
if (ss == NULL) {
/*
* diagnose snmp_open errors with the input netsnmp_session pointer
*/
snmp_sess_perror("snmpget", &session);
SOCK_CLEANUP;
return;
}
newp = (struct simple_proxy *) calloc(1, sizeof(struct simple_proxy));
newp->sess = ss;
DEBUGMSGTL(("proxy_init", "name = %s\n", args[arg]));
newp->name_len = MAX_OID_LEN;
if (!snmp_parse_oid(args[arg++], newp->name, &newp->name_len)) {
snmp_perror("proxy");
config_perror("illegal proxy oid specified\n");
return;
}
if (arg < argn) {
DEBUGMSGTL(("proxy_init", "base = %s\n", args[arg]));
newp->base_len = MAX_OID_LEN;
if (!snmp_parse_oid(args[arg++], newp->base, &newp->base_len)) {
snmp_perror("proxy");
config_perror("illegal variable name specified (base oid)\n");
return;
}
}
if ( context_string )
newp->context = strdup(context_string);
DEBUGMSGTL(("proxy_init", "registering at: "));
DEBUGMSGOID(("proxy_init", newp->name, newp->name_len));
DEBUGMSG(("proxy_init", "\n"));
/*
* add to our chain
*/
/*
* must be sorted!
*/
listpp = &proxies;
while (*listpp &&
snmp_oid_compare(newp->name, newp->name_len,
(*listpp)->name, (*listpp)->name_len) > 0) {
listpp = &((*listpp)->next);
}
/*
* listpp should be next in line from us.
*/
if (*listpp) {
/*
* make our next in the link point to the current link
*/
newp->next = *listpp;
}
/*
* replace current link with us
*/
*listpp = newp;
reg = netsnmp_create_handler_registration("proxy",
proxy_handler,
newp->name,
newp->name_len,
HANDLER_CAN_RWRITE);
reg->handler->myvoid = newp;
if (context_string)
reg->contextName = strdup(context_string);
netsnmp_register_handler(reg);
}
