struct config_line *
register_app_config_handler(const char *token,
void (*parser) (const char *, char *),
void (*releaser) (void),
const char *help)
{
return(register_config_handler( NULL, token, parser, releaser, help ));
}
/* ---------------------------------------------------------------------
*
* Utility support routines
*/
void
agentx_register_config_handler(const char *token,
void (*parser) (const char *, char *),
void (*releaser) (void), const char *help)
{
DEBUGMSGTL(("agentx_register_app_config_handler",
"registering .conf token for \"%s\"\n", token));
register_config_handler(":agentx", token, parser, releaser, help);
}
void netsnmp_tlsbase_ctor (void)
{
/* bootstrap ssl since we'll need it */
netsnmp_init_openssl ();
/* the private client cert to authenticate with */
netsnmp_ds_register_config (ASN_OCTET_STR, "snmp", "extraX509SubDir",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_CERT_EXTRA_SUBDIR);
/* Do we have a CRL list? */
netsnmp_ds_register_config (ASN_OCTET_STR, "snmp", "x509CRLFile",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_X509_CRL_FILE);
/* What TLS algorithms should be use */
netsnmp_ds_register_config (ASN_OCTET_STR, "snmp", "tlsAlgorithms",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_TLS_ALGORITMS);
/*
* for the client
*/
/* the public client cert to authenticate with */
register_config_handler ("snmp", "clientCert", _parse_client_cert, NULL, NULL);
/*
* for the server
*/
/* The X509 server key to use */
register_config_handler ("snmp", "serverCert", _parse_server_cert, NULL, NULL);
/*
* remove cert config ambiguity: localCert, peerCert
*/
netsnmp_ds_register_config (ASN_OCTET_STR, "snmp", "localCert",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_TLS_LOCAL_CERT);
netsnmp_ds_register_config (ASN_OCTET_STR, "snmp", "peerCert", NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_TLS_PEER_CERT);
/*
* register our boot-strapping needs
*/
snmp_register_callback (SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_POST_PREMIB_READ_CONFIG, tls_bootstrap, NULL);
}
void
init_snmpNotifyFilterTable_data_storage(void)
{
if (NULL == _container)
(void) snmpNotifyFilter_storage_container_create();
register_config_handler(NULL, "notificationFilter",
_snmpNotifyFilter_parse, NULL, NULL);
}
int
ds_register_config(u_char type, const char *ftype, const char *token,
int storeid, int which) {
struct ds_read_config *drsp;
if (storeid >= DS_MAX_IDS || which >= DS_MAX_SUBIDS ||
storeid < 0 || which < 0 || token == NULL)
return SNMPERR_GENERR;
if (ds_configs == NULL) {
ds_configs = SNMP_MALLOC_STRUCT(ds_read_config);
drsp = ds_configs;
} else {
for(drsp = ds_configs; drsp->next != NULL; drsp = drsp->next);
drsp->next = SNMP_MALLOC_STRUCT(ds_read_config);
drsp = drsp->next;
}
drsp->type = type;
drsp->token = strdup(token);
drsp->storeid = storeid;
drsp->which = which;
switch (type) {
case ASN_BOOLEAN:
register_config_handler(ftype, token, ds_handle_config, NULL,"(1|yes|true|0|no|false)");
break;
case ASN_INTEGER:
register_config_handler(ftype, token, ds_handle_config, NULL,"integerValue");
break;
case ASN_OCTET_STR:
register_config_handler(ftype, token, ds_handle_config, NULL,"string");
break;
}
return SNMPERR_SUCCESS;
}
struct config_line *
register_premib_handler(const char *type,
const char *token,
void (*parser) (const char *, char *),
void (*releaser) (void),
const char *help)
{
struct config_line *ltmp;
ltmp = register_config_handler(type, token, parser, releaser, help);
if (ltmp != NULL)
ltmp->config_time = PREMIB_CONFIG;
return (ltmp);
}
/** registers to store a data_list set of data at persistent storage time
*
* @param datalist the data to be saved
* @param type the name of the application to save the data as. If left NULL the default application name that was registered during the init_snmp call will be used (recommended).
* @param token the unique token identifier string to use as the first word in the persistent file line.
* @param data_list_save_ptr a function pointer which will be called to save the rest of the data to a buffer.
* @param data_list_read_ptr a function pointer which can read the remainder of a saved line and return the application specific void * pointer.
* @param data_list_free_ptr a function pointer which will be passed to the data node for freeing it in the future when/if the list/node is cleaned up or destroyed.
*/
void
netsnmp_register_save_list(netsnmp_data_list **datalist,
const char *type, const char *token,
Netsnmp_Save_List_Data *data_list_save_ptr,
Netsnmp_Read_List_Data *data_list_read_ptr,
Netsnmp_Free_List_Data *data_list_free_ptr)
{
netsnmp_data_list_saveinfo *info;
if (!data_list_save_ptr && !data_list_read_ptr)
return;
info = SNMP_MALLOC_TYPEDEF(netsnmp_data_list_saveinfo);
if (!info) {
snmp_log(LOG_ERR, "couldn't malloc a netsnmp_data_list_saveinfo typedef");
return;
}
info->datalist = datalist;
info->token = token;
info->type = type;
if (!info->type) {
info->type = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
}
/* function which will save the data */
info->data_list_save_ptr = data_list_save_ptr;
if (data_list_save_ptr)
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
netsnmp_save_all_data_callback, info);
/* function which will read the data back in */
info->data_list_read_ptr = data_list_read_ptr;
if (data_list_read_ptr) {
/** @todo netsnmp_register_save_list should handle the same token name being saved from different types? */
netsnmp_add_list_data(&saveHead,
netsnmp_create_data_list(token, info, NULL));
register_config_handler(type, token, netsnmp_read_data_callback,
NULL /* XXX */, NULL);
}
info->data_list_free_ptr = data_list_free_ptr;
}
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::efF:g:hHI:L:m:M:no:O:Ptu:vx:X-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0;
int uid = 0, gid = 0;
int exit_code = 1;
char *cp, *listen_ports = NULL;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
int agentx_subagent = 1;
#endif
netsnmp_trapd_handler *traph;
#ifndef WIN32
int prepared_sockets = 0;
#endif
#ifndef NETSNMP_NO_SYSTEMD
/* check if systemd has sockets for us and don't close them */
prepared_sockets = netsnmp_sd_listen_fds(0);
#endif
#ifndef WIN32
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
if (!prepared_sockets)
netsnmp_close_fds(2);
#endif
#ifdef SIGTERM
signal(SIGTERM, term_handler);
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
#ifdef SIGINT
signal(SIGINT, term_handler);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
#ifdef NETSNMP_USE_MYSQL
snmptrapd_register_sql_configs( );
#endif
#ifdef NETSNMP_SECMOD_USM
init_usm_conf( "snmptrapd" );
#endif /* NETSNMP_SECMOD_USM */
register_config_handler("snmptrapd", "snmpTrapdAddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
#ifdef HAVE_UNISTD_H
register_config_handler("snmptrapd", "agentuser",
parse_config_agentuser, NULL, "userid");
register_config_handler("snmptrapd", "agentgroup",
parse_config_agentgroup, NULL, "groupid");
#endif
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:");
#endif
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
#ifdef WIN32
snmp_log_syslogname(app_name_long);
#else
snmp_log_syslogname(app_name);
#endif
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0 ||
strcasecmp(optarg, "version") == 0) {
version();
exit_code = 0;
goto out;
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'A':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES, 1);
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
goto out;
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DUMP_PACKET, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
if (( strncmp( optarg, "print", 5 ) == 0 ) ||
( strncmp( optarg, "syslog", 6 ) == 0 ) ||
( strncmp( optarg, "execute", 7 ) == 0 )) {
/* New style: "type=format" */
trap1_fmt_str_remember = strdup(optarg);
cp = strchr( trap1_fmt_str_remember, '=' );
if (cp)
*cp = ' ';
} else {
/* Old style: implicitly "print=format" */
trap1_fmt_str_remember = malloc(strlen(optarg) + 7);
sprintf( trap1_fmt_str_remember, "print %s", optarg );
}
} else {
usage();
goto out;
}
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid = atoi(optarg));
} else {
usage();
goto out;
}
break;
#endif
case 'h':
usage();
exit_code = 0;
goto out;
case 'H':
init_agent("snmptrapd");
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
init_notification_log();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit_code = 0;
goto out;
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage();
}
break;
case 'S':
fprintf(stderr,
"Warning: -S option has been withdrawn; use -Ls <facility> instead\n");
goto out;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
goto out;
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
goto out;
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option has been withdrawn; use -Lf <file> instead\n");
goto out;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
goto out;
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
goto out;
}
break;
#if HAVE_GETPID
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
goto out;
}
break;
#endif
case 'P':
fprintf(stderr,
"Warning: -P option has been withdrawn; use -f -Le instead\n");
goto out;
case 's':
fprintf(stderr,
"Warning: -s option has been withdrawn; use -Lsd instead\n");
goto out;
case 't':
SyslogTrap++;
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
uid = strtoul(optarg, &ecp, 10);
#if HAVE_GETPWNAM && HAVE_PWD_H
if (*ecp) {
struct passwd *info;
info = getpwnam(optarg);
uid = info ? info->pw_uid : -1;
endpwent();
}
#endif
if (uid < 0) {
fprintf(stderr, "Bad user id: %s\n", optarg);
goto out;
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage();
goto out;
}
break;
#endif
case 'v':
version();
exit(0);
break;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage();
goto out;
}
break;
case 'X':
agentx_subagent = 0;
break;
#endif
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
goto out;
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
goto out;
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
goto out;
}
}
}
}
SOCK_STARTUP;
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (0 == snmp_get_do_logging()) {
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
syslog_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_syslog();
#else /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_STDIO
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_stderr();
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
} else {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
}
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
#ifdef NETSNMP_FEATURE_CHECKING
netsnmp_feature_require(register_snmpEngine_scalars_context)
#endif /* NETSNMP_FEATURE_CHECKING */
/*
* initialize local modules
*/
if (agentx_subagent) {
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
extern void register_snmpEngine_scalars_context(const char *);
#endif
subagent_init();
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
/* register the notification log table */
if (should_init("notificationLogMib")) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_NOTIF_LOG_CTX,
"snmptrapd");
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER,
notification_handler);
traph->authtypes = TRAP_AUTH_LOG;
init_notification_log();
}
#endif
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
/*
* register scalars from SNMP-FRAMEWORK-MIB::snmpEngineID group;
* allows engineID probes via the master agent under the
* snmptrapd context
*/
register_snmpEngine_scalars_context("snmptrapd");
#endif
}
#endif /* USING_AGENTX_SUBAGENT_MODULE && !NETSNMP_SNMPTRAPD_DISABLE_AGENTX */
/* register our authorization handler */
init_netsnmp_trapd_auth();
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
if (agentx_subagent) {
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
extern void init_register_nsVacm_context(const char *);
#endif
#ifdef USING_SNMPV3_USMUSER_MODULE
#ifdef NETSNMP_FEATURE_CHECKING
netsnmp_feature_require(init_register_usmUser_context)
#endif /* NETSNMP_FEATURE_CHECKING */
extern void init_register_usmUser_context(const char *);
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
#endif
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
/* register net-snmp vacm extensions */
init_register_nsVacm_context("snmptrapd");
#endif
#ifdef USING_TLSTM_MIB_SNMPTLSTMCERTTOTSNTABLE_MODULE
init_snmpTlstmCertToTSNTable_context("snmptrapd");
#endif
}
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
if (trap1_fmt_str_remember) {
parse_format( NULL, trap1_fmt_str_remember );
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
netsnmp_running = 0;
}
/*
* if no logging options on command line or in conf files, use syslog
*/
if (0 == snmp_get_do_logging()) {
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
}
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
if (sep != NULL) {
*sep = 0;
}
transport = netsnmp_transport_open_server("snmptrap", cp);
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
goto sock_cleanup;
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
snmp_log(LOG_ERR, "couldn't open snmp - %s", strerror(errno));
goto sock_cleanup;
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
SNMP_FREE(listen_ports); /* done with them */
#ifdef NETSNMP_USE_MYSQL
if( netsnmp_mysql_init() ) {
fprintf(stderr, "MySQL initialization failed\n");
goto sock_cleanup;
}
#endif
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && netsnmp_running) {
int fd;
#if HAVE_FORKALL
switch (forkall()) {
#else
switch (fork()) {
#endif
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
goto sock_cleanup;
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
goto sock_cleanup;
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
if (fd >= 0) {
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
}
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
goto sock_cleanup;
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
/*
* ignore early sighup during startup
*/
reconfig = 0;
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) > 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
goto sock_cleanup;
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
goto sock_cleanup;
}
}
}
#endif
#endif
/*
* Let systemd know we're up.
*/
#ifndef NETSNMP_NO_SYSTEMD
netsnmp_sd_notify(1, "READY=1\n");
if (prepared_sockets)
/*
* Clear the environment variable, we already processed all the sockets
* by now.
*/
netsnmp_sd_listen_fds(1);
#endif
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
snmptrapd_main_loop();
if (snmp_get_do_logging()) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
snmp_log(LOG_INFO, "Stopping snmptrapd\n");
#ifdef NETSNMP_EMBEDDED_PERL
shutdown_perl();
#endif
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
exit_code = 0;
sock_cleanup:
SOCK_CLEANUP;
out:
return exit_code;
}
/*
* Read the configuration files. Implemented as a signal handler so that
* receipt of SIGHUP will cause configuration to be re-read when the
* trap daemon is running detatched from the console.
*
*/
void
trapd_update_config(void)
{
free_config();
#ifdef USING_MIBII_VACM_CONF_MODULE
vacm_standard_views(0,0,NULL,NULL);
#endif
read_configs();
}
void
init_snmpTlstmCertToTSNTable_context(const char *contextName)
{
oid reg_oid[] = { SNMP_TLS_TM_CERT_TABLE };
const size_t reg_oid_len = OID_LENGTH(reg_oid);
netsnmp_handler_registration *reg;
netsnmp_table_registration_info *info;
netsnmp_cache *cache;
netsnmp_watcher_info *watcher;
const char *mib_map_help =
MAP_MIB_CONFIG_TOKEN " table persistence (internal use)";
DEBUGMSGTL(("tlstmCertToSN:init",
"initializing table tlstmCertToTSNTable\n"));
reg = netsnmp_create_handler_registration
("tlstmCertToTSNTable", tlstmCertToTSNTable_handler,
reg_oid, reg_oid_len,
HANDLER_CAN_RWRITE);
if (NULL == reg) {
snmp_log(LOG_ERR,
"error creating handler registration for tlstmCertToSN\n");
return;
}
if (NULL != contextName)
reg->contextName = strdup(contextName);
_table = netsnmp_tdata_create_table("tlstmCertToTSNTable", 0);
if (NULL == _table) {
snmp_log(LOG_ERR,
"error creating tdata table for tlstmCertToTSNTable\n");
return;
}
info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
if (NULL == info) {
snmp_log(LOG_ERR,
"error creating table info for tlstmCertToTSNTable\n");
netsnmp_tdata_delete_table(_table);
_table = NULL;
return;
}
netsnmp_table_helper_add_indexes(info,
/* index: tlstmCertToTSNID */
ASN_UNSIGNED, 0);
info->min_column = SNMPTLSTMCERTTOTSN_TABLE_MIN_COL;
info->max_column = SNMPTLSTMCERTTOTSN_TABLE_MAX_COL;
/*
* cache init
*/
cache = netsnmp_cache_create(30, (NetsnmpCacheLoad*)_cache_load,
(NetsnmpCacheFree*)_cache_free,
reg_oid,
reg_oid_len);
if (NULL == cache) {
snmp_log(LOG_ERR,"error creating cache for tlstmCertToTSNTable\n");
netsnmp_tdata_delete_table(_table);
_table = NULL;
return;
}
cache->magic = (void *)_table;
cache->flags = NETSNMP_CACHE_DONT_INVALIDATE_ON_SET;
netsnmp_tdata_register(reg, _table, info);
if (cache)
netsnmp_inject_handler_before( reg, netsnmp_cache_handler_get(cache),
"table_container");
/*
* register scalars
*/
reg_oid[10] = 1;
reg = netsnmp_create_handler_registration("snmpTlstmCertToTSNCount",
_count_handler, reg_oid,
OID_LENGTH(reg_oid),
HANDLER_CAN_RONLY);
if (NULL == reg)
snmp_log(LOG_ERR,
"could not create handler for snmpTlstmCertToTSNCount\n");
else {
if (NULL != contextName)
reg->contextName = strdup(contextName);
netsnmp_register_scalar(reg);
if (cache)
netsnmp_inject_handler_before(reg, netsnmp_cache_handler_get(cache),
"table_container");
}
reg_oid[10] = 2;
reg = netsnmp_create_handler_registration(
"snmpTlstmCertToTSNTableLastChanged", NULL, reg_oid,
OID_LENGTH(reg_oid), HANDLER_CAN_RONLY);
watcher = netsnmp_create_watcher_info((void*)&_last_changed,
sizeof(_last_changed),
ASN_TIMETICKS,
WATCHER_FIXED_SIZE);
if ((NULL == reg) || (NULL == watcher))
snmp_log(LOG_ERR,
"could not create handler for snmpTlstmCertToTSNCount\n");
else {
if (NULL != contextName)
reg->contextName = strdup(contextName);
netsnmp_register_watched_scalar(reg, watcher);
}
/*
* persistence
*/
register_config_handler(NULL, MAP_MIB_CONFIG_TOKEN, _parse_mib_maps, NULL,
mib_map_help);
if (snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
_save_maps, NULL) != SNMP_ERR_NOERROR)
snmp_log(LOG_ERR, "error registering for STORE_DATA callback "
"for certToTSN\n");
}
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::efF:g:hHI:L:m:M:no:O:PqsS:tu:vx:-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0, depmsg = 0;
int uid = 0, gid = 0;
int count, numfds, block;
fd_set readfds,writefds,exceptfds;
struct timeval timeout, *tvp;
char *cp, *listen_ports = NULL;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
int agentx_subagent = 1;
#endif
netsnmp_trapd_handler *traph;
#ifdef NETSNMP_EMBEDDED_PERL
extern void init_perl(void);
#endif
#ifndef WIN32
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
for (i = getdtablesize() - 1; i > 2; --i) {
(void) close(i);
}
#endif /* #WIN32 */
#ifdef SIGTERM
signal(SIGTERM, term_handler);
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
#ifdef SIGINT
signal(SIGINT, term_handler);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
init_usm_conf( "snmptrapd" );
register_config_handler("snmptrapd", "snmpTrapdAddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
#ifdef HAVE_UNISTD_H
register_config_handler("snmptrapd", "agentuser",
parse_config_agentuser, NULL, "userid");
register_config_handler("snmptrapd", "agentgroup",
parse_config_agentgroup, NULL, "groupid");
#endif
register_config_handler("snmptrapd", "logOption",
parse_config_logOption, NULL, "string");
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "printEventNumbers",
parse_config_printEventNumbers, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
#ifdef WIN32
setvbuf(stdout, NULL, _IONBF, BUFSIZ);
#else
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:");
#endif
#ifdef WIN32
snmp_log_syslogname(app_name_long);
#else
snmp_log_syslogname(app_name);
#endif
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage();
exit(0);
}
if (strcasecmp(optarg, "version") == 0) {
version();
exit(0);
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'A':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES, 1);
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
exit(1);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'e':
Event++;
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
trap1_fmt_str_remember = optarg;
} else {
usage();
exit(1);
}
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid = atoi(optarg));
} else {
usage();
exit(1);
}
break;
#endif
case 'h':
usage();
exit(0);
case 'H':
init_agent("snmptrapd");
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
init_notification_log();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage();
}
break;
case 'S':
fprintf(stderr,
"Warning: -S option is deprecated; use -Ls <facility> instead\n");
depmsg = 1;
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage();
exit(1);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage();
exit(1);
}
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option is deprecated; use -Lf <file> instead\n");
if (optarg != NULL) {
logfile = optarg;
snmp_enable_filelog(optarg,
netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES));
} else {
usage();
exit(1);
}
break;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
exit(1);
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
exit(1);
}
break;
#if HAVE_GETPID
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
exit(1);
}
break;
#endif
case 'P':
fprintf(stderr,
"Warning: -P option is deprecated; use -f -Le instead\n");
dofork = 0;
snmp_enable_stderrlog();
break;
case 's':
fprintf(stderr,
"Warning: -s option is deprecated; use -Lsd instead\n");
depmsg = 1;
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
break;
case 't':
SyslogTrap++;
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
uid = strtoul(optarg, &ecp, 10);
if (*ecp) {
#if HAVE_GETPWNAM && HAVE_PWD_H
struct passwd *info;
info = getpwnam(optarg);
if (info) {
uid = info->pw_uid;
} else {
#endif
fprintf(stderr, "Bad user id: %s\n", optarg);
exit(1);
#if HAVE_GETPWNAM && HAVE_PWD_H
}
#endif
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage();
exit(1);
}
break;
#endif
case 'v':
version();
exit(0);
break;
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage();
exit(1);
}
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
exit(1);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
}
}
}
SOCK_STARTUP;
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (0 == snmp_get_do_logging()) {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
syslog_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_syslog();
} else {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
}
if (Event) {
traph = netsnmp_add_traphandler(event_handler, risingAlarm,
OID_LENGTH(risingAlarm));
traph->authtypes = TRAP_AUTH_LOG;
traph = netsnmp_add_traphandler(event_handler, fallingAlarm,
OID_LENGTH(fallingAlarm));
traph->authtypes = TRAP_AUTH_LOG;
traph = netsnmp_add_traphandler(event_handler, unavailableAlarm,
OID_LENGTH(unavailableAlarm));
traph->authtypes = TRAP_AUTH_LOG;
/* XXX - might be worth setting some "magic data"
* in the traphandler structure that 'event_handler'
* can use to avoid checking the trap OID values.
*/
}
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* initialize local modules
*/
if (agentx_subagent) {
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
extern void register_snmpEngine_scalars_context(const char *);
#endif
subagent_init();
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
/* register the notification log table */
if (should_init("notificationLogMib")) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_NOTIF_LOG_CTX,
"snmptrapd");
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER,
notification_handler);
traph->authtypes = TRAP_AUTH_LOG;
init_notification_log();
}
#endif
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
/*
* register scalars from SNMP-FRAMEWORK-MIB::snmpEngineID group;
* allows engineID probes via the master agent under the
* snmptrapd context
*/
register_snmpEngine_scalars_context("snmptrapd");
#endif
}
#endif /* USING_AGENTX_SUBAGENT_MODULE && !NETSNMP_SNMPTRAPD_DISABLE_AGENTX */
/* register our authorization handler */
init_netsnmp_trapd_auth();
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
if (agentx_subagent) {
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
extern void init_register_nsVacm_context(const char *);
#endif
#ifdef USING_SNMPV3_USMUSER_MODULE
extern void init_register_usmUser_context(const char *);
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
#endif
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
/* register net-snmp vacm extensions */
init_register_nsVacm_context("snmptrapd");
#endif
}
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
netsnmp_running = 0;
}
/*
* if no logging options on command line or in conf files, use syslog
*/
if (0 == snmp_get_do_logging()) {
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
}
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && netsnmp_running) {
int fd;
switch (fork()) {
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
_exit(1);
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
_exit(1);
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
exit(1);
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
if (depmsg) {
snmp_log(LOG_WARNING, "-s and -S options are deprecated; use -Ls <facility> instead\n");
}
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
if (sep != NULL) {
*sep = 0;
}
transport = netsnmp_transport_open_server("snmptrap", cp);
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
SOCK_CLEANUP;
exit(1);
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
netsnmp_transport_free(transport);
snmp_log(LOG_ERR, "couldn't open snmp - %s", strerror(errno));
SOCK_CLEANUP;
exit(1);
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
/*
* ignore early sighup during startup
*/
reconfig = 0;
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#endif
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
while (netsnmp_running) {
if (reconfig) {
/*
* If we are logging to a file, receipt of SIGHUP also
* indicates the the log file should be closed and
* re-opened. This is useful for users that want to
* rotate logs in a more predictable manner.
*/
netsnmp_logging_restart();
snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
netsnmp_get_version());
trapd_update_config();
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
reconfig = 0;
}
numfds = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&exceptfds);
block = 0;
tvp = &timeout;
timerclear(tvp);
tvp->tv_sec = 5;
snmp_select_info(&numfds, &readfds, tvp, &block);
if (block == 1)
tvp = NULL; /* block without timeout */
netsnmp_external_event_info(&numfds, &readfds, &writefds, &exceptfds);
count = select(numfds, &readfds, &writefds, &exceptfds, tvp);
gettimeofday(&Now, 0);
if (count > 0) {
netsnmp_dispatch_external_events(&count, &readfds, &writefds,
&exceptfds);
/* If there are any more events after external events, then
* try SNMP events. */
if (count > 0) {
snmp_read(&readfds);
}
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR)
continue;
snmp_log_perror("select");
netsnmp_running = 0;
break;
default:
fprintf(stderr, "select returned %d\n", count);
netsnmp_running = 0;
}
run_alarms();
}
if (snmp_get_do_logging()) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
snmp_log(LOG_INFO, "Stopping snmptrapd");
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
SOCK_CLEANUP;
return 0;
}
/*******************************************************************-o-******
* init_snmpv3
*
* Parameters:
* *type Label for the config file "type" used by calling entity.
*
* Set time and engineID.
* Set parsing functions for config file tokens.
* Initialize SNMP Crypto API (SCAPI).
*/
void
init_snmpv3(const char *type)
{
#if SNMP_USE_TIMES
struct tms dummy;
/* fixme: -1 is fault code... */
snmpv3startClock = times(&dummy);
/* remember how many ticks per second there are, since times() returns this */
clockticks = sysconf(_SC_CLK_TCK);
#endif /* SNMP_USE_TIMES */
gettimeofday(&snmpv3starttime, NULL);
if (!type)
type = "__snmpapp__";
/*
* we need to be called back later
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_READ_CONFIG,
init_snmpv3_post_config, NULL);
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_PREMIB_READ_CONFIG,
init_snmpv3_post_premib_config, NULL);
/*
* we need to be called back later
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
snmpv3_store, (void *) strdup(type));
/*
* Free stuff at shutdown time
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_SHUTDOWN,
free_enginetime_on_shutdown, NULL);
/*
* initialize submodules
*/
/*
* NOTE: this must be after the callbacks are registered above,
* since they need to be called before the USM callbacks.
*/
init_secmod();
/*
* register all our configuration handlers (ack, there's a lot)
*/
/*
* handle engineID setup before everything else which may depend on it
*/
register_prenetsnmp_mib_handler(type, "engineID", engineID_conf, NULL,
"string");
register_prenetsnmp_mib_handler(type, "oldEngineID", oldengineID_conf,
NULL, NULL);
register_prenetsnmp_mib_handler(type, "engineIDType",
engineIDType_conf, NULL, "num");
register_prenetsnmp_mib_handler(type, "engineIDNic", engineIDNic_conf,
NULL, "string");
register_config_handler(type, "engineBoots", engineBoots_conf, NULL,
NULL);
/*
* default store config entries
*/
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defSecurityName",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SECNAME);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defContext",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_CONTEXT);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHPASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVPASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthMasterKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHMASTERKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivMasterKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVMASTERKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthLocalizedKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHLOCALIZEDKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivLocalizedKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVLOCALIZEDKEY);
register_config_handler("snmp", "defVersion", version_conf, NULL,
"1|2c|3");
register_config_handler("snmp", "defAuthType", snmpv3_authtype_conf,
NULL, "MD5|SHA");
register_config_handler("snmp", "defPrivType", snmpv3_privtype_conf,
NULL,
#ifdef HAVE_AES
"DES|AES");
#else
"DES (AES support not available)");
#endif
register_config_handler("snmp", "defSecurityLevel",
snmpv3_secLevel_conf, NULL,
"noAuthNoPriv|authNoPriv|authPriv");
register_config_handler(type, "userSetAuthPass", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetPrivPass", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetAuthKey", usm_set_password, NULL,
NULL);
register_config_handler(type, "userSetPrivKey", usm_set_password, NULL,
NULL);
register_config_handler(type, "userSetAuthLocalKey", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetPrivLocalKey", usm_set_password,
NULL, NULL);
}
/*******************************************************************-o-******
* init_snmpv3
*
* Parameters:
* *type Label for the config file "type" used by calling entity.
*
* Set time and engineID.
* Set parsing functions for config file tokens.
* Initialize SNMP Crypto API (SCAPI).
*/
void
init_snmpv3(const char *type) {
gettimeofday(&snmpv3starttime, NULL);
if (type == NULL)
type = "snmpapp";
if (type && !strcmp(type,"snmpapp")) {
setup_engineID(NULL,"__snmpapp__");
} else {
setup_engineID(NULL, NULL);
}
/* initialize submodules */
init_usm();
/* we need to be called back later */
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_POST_READ_CONFIG,
init_snmpv3_post_config, NULL);
/* we need to be called back later */
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
snmpv3_store, (void *) type);
#if !defined(USE_INTERNAL_MD5)
/* doesn't belong here at all */
sc_init();
#endif /* !USE_INTERNAL_MD5 */
/* register all our configuration handlers (ack, there's a lot) */
/* handle engineID setup before everything else which may depend on it */
register_premib_handler(type,"engineID", engineID_conf, NULL, "string");
register_premib_handler(type,"oldEngineID", oldengineID_conf, NULL, NULL);
register_config_handler(type,"engineBoots", engineBoots_conf, NULL, NULL);
/* default store config entries */
ds_register_config(ASN_OCTET_STR, "snmp", "defSecurityName", DS_LIBRARY_ID,
DS_LIB_SECNAME);
ds_register_config(ASN_OCTET_STR, "snmp", "defContext", DS_LIBRARY_ID,
DS_LIB_CONTEXT);
ds_register_config(ASN_OCTET_STR, "snmp", "defPassphrase", DS_LIBRARY_ID,
DS_LIB_PASSPHRASE);
ds_register_config(ASN_OCTET_STR, "snmp", "defAuthPassphrase", DS_LIBRARY_ID,
DS_LIB_AUTHPASSPHRASE);
ds_register_config(ASN_OCTET_STR, "snmp", "defPrivPassphrase", DS_LIBRARY_ID,
DS_LIB_PRIVPASSPHRASE);
register_config_handler("snmp","defVersion", version_conf, NULL, "1|2c|3");
register_config_handler("snmp","defAuthType", snmpv3_authtype_conf, NULL,
"MD5|SHA");
register_config_handler("snmp","defPrivType", snmpv3_privtype_conf, NULL,
"DES (currently the only possible value)");
register_config_handler("snmp","defSecurityLevel", snmpv3_secLevel_conf,
NULL, "noAuthNoPriv|authNoPriv|authPriv");
register_config_handler(type,"userSetAuthPass", usm_set_password, NULL,
"secname engineIDLen engineID pass");
register_config_handler(type,"userSetPrivPass", usm_set_password, NULL,
"secname engineIDLen engineID pass");
register_config_handler(type,"userSetAuthKey", usm_set_password, NULL,
"secname engineIDLen engineID KuLen Ku");
register_config_handler(type,"userSetPrivKey", usm_set_password, NULL,
"secname engineIDLen engineID KuLen Ku");
register_config_handler(type,"userSetAuthLocalKey", usm_set_password, NULL,
"secname engineIDLen engineID KulLen Kul");
register_config_handler(type,"userSetPrivLocalKey", usm_set_password, NULL,
"secname engineIDLen engineID KulLen Kul");
}
main(int argc, char *argv[])
#endif
{
char options[128] = "ac:CdD::efF:hHl:L:m:M:no:PqsS:tvO:-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0;
int count, numfds, block;
fd_set fdset;
struct timeval timeout, *tvp;
char *cp, *listen_ports = NULL;
int agentx_subagent = 1, depmsg = 0;
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
init_usm_conf( "snmptrapd" );
register_config_handler("snmptrapd", "snmptrapdaddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
register_config_handler("snmptrapd", "logOption",
parse_config_logOption, NULL, "string");
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "printEventNumbers",
parse_config_printEventNumbers, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
#ifdef WIN32
setvbuf(stdout, NULL, _IONBF, BUFSIZ);
#else
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:u:");
#endif
snmp_log_syslogname(app_name);
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage();
exit(0);
}
if (strcasecmp(optarg, "version") == 0) {
version();
exit(0);
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
exit(1);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'e':
Event++;
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
trap1_fmt_str_remember = optarg;
} else {
usage();
exit(1);
}
break;
case 'h':
usage();
exit(0);
case 'H':
init_notification_log();
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'S':
fprintf(stderr,
"Warning: -S option is deprecated; use -Ls <facility> instead\n");
depmsg = 1;
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage();
exit(1);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage();
exit(1);
}
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option is deprecated; use -Lf <file> instead\n");
Print++;
if (optarg != NULL) {
logfile = optarg;
snmp_enable_filelog(optarg, 0);
} else {
usage();
exit(1);
}
break;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
exit(1);
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
exit(1);
}
Log++;
break;
case 'P':
fprintf(stderr,
"Warning: -P option is deprecated; use -f -Le instead\n");
dofork = 0;
snmp_enable_stderrlog();
Print++;
break;
case 's':
fprintf(stderr,
"Warning: -s option is deprecated; use -Lsd instead\n");
depmsg = 1;
Syslog++;
break;
case 't':
SyslogTrap++;
break;
#if HAVE_GETPID
case 'u':
fprintf(stderr,
"Warning: -u option is deprecated; use -p instead\n");
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
exit(1);
}
break;
#endif
case 'v':
version();
exit(0);
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
exit(1);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
}
}
}
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (!Log && !Print) {
Syslog = 1;
netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER, syslog_handler);
} else {
netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER, print_handler);
}
netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER, notification_handler);
if (Event) {
netsnmp_add_traphandler(event_handler, risingAlarm,
OID_LENGTH(risingAlarm));
netsnmp_add_traphandler(event_handler, fallingAlarm,
OID_LENGTH(fallingAlarm));
netsnmp_add_traphandler(event_handler, unavailableAlarm,
OID_LENGTH(unavailableAlarm));
/* XXX - might be worth setting some "magic data"
* in the traphandler structure that 'event_handler'
* can use to avoid checking the trap OID values.
*/
}
#ifdef USING_AGENTX_SUBAGENT_MODULE
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
/*
* initialize local modules
*/
if (agentx_subagent) {
extern void init_register_usmUser_context(const char *);
#ifdef USING_AGENTX_SUBAGENT_MODULE
void init_subagent(void);
init_subagent();
#endif
/* register the notification log table */
init_notification_log();
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
}
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
running = 0;
}
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && running) {
int fd;
switch (fork()) {
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
_exit(1);
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
_exit(1);
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
exit(1);
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
if (Syslog) {
snmp_enable_syslog_ident(app_name, Facility);
snmp_log(LOG_INFO, "Starting snmptrapd %s\n", netsnmp_get_version());
if (depmsg) {
snmp_log(LOG_WARNING, "-s and -S options are deprecated; use -Ls <facility> instead\n");
}
}
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Started.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
netsnmp_get_version());
}
SOCK_STARTUP;
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
char listen_name[128];
char *cp2 = strchr(cp, ':');
if (sep != NULL) {
*sep = 0;
}
/*
* Make sure this defaults to listening on port 162
*/
if (!cp2) {
snprintf(listen_name, sizeof(listen_name), "%s:162", cp);
cp2 = listen_name;
} else {
cp2 = cp;
}
transport = netsnmp_tdomain_transport(cp2, 1, "udp");
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp2, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
SOCK_CLEANUP;
exit(1);
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
netsnmp_transport_free(transport);
if (Syslog) {
snmp_log(LOG_ERR, "couldn't open snmp - %m");
}
SOCK_CLEANUP;
exit(1);
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
signal(SIGTERM, term_handler);
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
signal(SIGINT, term_handler);
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
while (running) {
if (reconfig) {
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
/*
* If we are logging to a file, receipt of SIGHUP also
* indicates the the log file should be closed and
* re-opened. This is useful for users that want to
* rotate logs in a more predictable manner.
*/
if (logfile)
snmp_enable_filelog(logfile, 1);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Reconfigured.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
netsnmp_get_version());
}
if (Syslog)
snmp_log(LOG_INFO, "Snmptrapd reconfiguring");
trapd_update_config();
if (trap1_fmt_str_remember) {
free_trap1_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
}
reconfig = 0;
}
numfds = 0;
FD_ZERO(&fdset);
block = 0;
tvp = &timeout;
timerclear(tvp);
tvp->tv_sec = 5;
snmp_select_info(&numfds, &fdset, tvp, &block);
if (block == 1)
tvp = NULL; /* block without timeout */
count = select(numfds, &fdset, 0, 0, tvp);
gettimeofday(&Now, 0);
if (count > 0) {
snmp_read(&fdset);
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR)
continue;
snmp_log_perror("select");
running = 0;
break;
default:
fprintf(stderr, "select returned %d\n", count);
running = 0;
}
run_alarms();
}
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
if (Syslog) {
snmp_log(LOG_INFO, "Stopping snmptrapd");
}
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
SOCK_CLEANUP;
return 0;
}
