コード例 #1
0
ファイル: snmp.c プロジェクト: t-yuki/cups-connector
// initialize tames the Net-SNMP library before it is used.
void initialize() {
	// Omit type when converting OID variable value to string.
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, 1);
	// Omit type error when converting OID variable value to string.
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT, 1);
#ifdef NETSNMP_DS_LIB_DONT_LOAD_HOST_FILES
	// Don't try to open a .conf file for every getbulk request.
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_LOAD_HOST_FILES, 1);
#endif
	// Disable Net-SNMP logging; this library logs errors.
	netsnmp_register_loghandler(NETSNMP_LOGHANDLER_NONE, 0);
}
コード例 #2
0
ファイル: diskio.c プロジェクト: WimObiwan/net-snmp
/* to do: make sure diskio_free_config() gets invoked upon SIGHUP. */
static int
diskio_free_config(int major, int minor, void *serverarg, void *clientarg)
{
    DEBUGMSGTL(("diskio", "free config %d\n",
		netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
				       NETSNMP_DS_AGENT_DISKIO_NO_RAM)));
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_DISKIO_NO_FD,   0);
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_DISKIO_NO_LOOP, 0);
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_DISKIO_NO_RAM,  0);
    return 0;
}
コード例 #3
0
ファイル: snmp.c プロジェクト: fbn-dd/netplan
/*
 * initialize
 */
void snmpInitialize(tInterfaceList *interfaceList)
{
    tOidList *oidList;

	/* initialize library */
	init_snmp("snmppoller");
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, TRUE);

	unsigned int i = 0;
	while (i < interfaceList->count) {
		syslog(LOG_DEBUG, "snmpInitialize: %s", interfaceList->interface[i].ip);
        oidList = &interfaceList->interface[i].oidList;

        unsigned int o = 0;
        while (o < oidList->count) {
            syslog(LOG_DEBUG, "snmpInitialize: * %s", oidList->oid[o].oidName);
			oidList->oid[o].OidLen = sizeof(oidList->oid[o].Oid)/sizeof(oidList->oid[o].Oid[0]);
			if (!read_objid(oidList->oid[o].oidName, oidList->oid[o].Oid, &oidList->oid[o].OidLen)) {
				syslog(LOG_ERR, "snmpInitialize: read_objid failed for: %d %s", interfaceList->interface[i].id_interface, oidList->oid[o].oidName);
				exit(1);
			}
            o++;
        }
        i++;
    }
}
コード例 #4
0
ファイル: ucd_compat.c プロジェクト: 274914765/C
void snmp_set_mib_parse_label (int save)
{
    /*
     * 0=strict, 1=underscore OK in label 
     */
    netsnmp_ds_set_boolean (NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_MIB_PARSE_LABEL, save);
}
コード例 #5
0
ファイル: proxy.c プロジェクト: Nymphetaminer/dsl-n55u
static void
proxyOptProc(int argc, char *const *argv, int opt)
{
    switch (opt) {
    case 'C':
        while (*optarg) {
            switch (*optarg++) {
            case 'n':
                optind++;
                if (optind < argc) {
                    context_string = argv[optind - 1];
                } else {
                    config_perror("No context name passed to -Cn");
                }
                break;
            case 'c':
                netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
                                       NETSNMP_DS_LIB_IGNORE_NO_COMMUNITY, 1);
                break;
            default:
                config_perror("unknown argument passed to -C");
                break;
            }
        }
        break;
    default:
        break;
        /*
         * shouldn't get here 
         */
    }
}
コード例 #6
0
ファイル: test.c プロジェクト: sureshkvl/onm
void main()
{
	int retries=0;
	if(netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,NETSNMP_DS_AGENT_ROLE,1))
	{

            printf("netsnmp_ds_set_boolean failed");
            return;
	}

	//initialize the agent
	while(0!=init_agent("mysnmpagent"))
	{
	     printf("init_agent failed\n");
	     sleep(1);
	}
	netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL,5);

	//mib initialization code
	init_mysnmpagent();
	init_snmp("mysnmpagent");
	keep_running=1;
	printf("My agent starting...\n");
	while(keep_running)
	{
	  if(-1==agent_check_and_process(1))
	     printf("agent_check_and process failed\n");
	}
	stop_server();
	return;
}
コード例 #7
0
ファイル: ucd_compat.c プロジェクト: 274914765/C
void snmp_set_mib_comment_term (int save)
{
    /*
     * 0=strict, 1=EOL terminated 
     */
    netsnmp_ds_set_boolean (NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_MIB_COMMENT_TERM, save);
}
コード例 #8
0
ファイル: agent.c プロジェクト: xhook/asterisk-v11
void *agent_thread(void *arg)
{
	ast_verb(2, "Starting %sAgent\n", res_snmp_agentx_subagent ? "Sub" : "");

	snmp_enable_stderrlog();

	if (res_snmp_agentx_subagent)
		netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
							   NETSNMP_DS_AGENT_ROLE,
							   1);

	init_agent("asterisk");

	init_asterisk_mib();

	init_snmp("asterisk");

	if (!res_snmp_agentx_subagent)
		init_master_agent();

	while (res_snmp_dont_stop)
		agent_check_and_process(1);

	snmp_shutdown("asterisk");

	ast_verb(2, "Terminating %sAgent\n", res_snmp_agentx_subagent ? "Sub" : "");

	return NULL;
}
コード例 #9
0
ファイル: nsDebug.c プロジェクト: ClausKlein/net-snmp
int
handle_nsDebugDumpPdu(netsnmp_mib_handler *handler,
                netsnmp_handler_registration *reginfo,
                netsnmp_agent_request_info *reqinfo,
                netsnmp_request_info *requests)
{
    long enabled;
    netsnmp_request_info *request=NULL;

    switch (reqinfo->mode) {

    case MODE_GET:
	enabled = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
	                                 NETSNMP_DS_LIB_DUMP_PACKET);
	if ( enabled==0 )
	    enabled=2;		/* false */
	for (request = requests; request; request=request->next) {
            if (request->processed != 0)
                continue;
	    snmp_set_var_typed_value(request->requestvb, ASN_INTEGER,
                                     (u_char*)&enabled, sizeof(enabled));
	}
	break;


#ifndef NETSNMP_NO_WRITE_SUPPORT
    case MODE_SET_RESERVE1:
	for (request = requests; request; request=request->next) {
            if (request->processed != 0)
                continue;
            if ( request->status != 0 ) {
                return SNMP_ERR_NOERROR;	/* Already got an error */
            }
            if ( request->requestvb->type != ASN_INTEGER ) {
                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);
                return SNMP_ERR_WRONGTYPE;
            }
            if (( *request->requestvb->val.integer != 1 ) &&
                ( *request->requestvb->val.integer != 2 )) {
                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGVALUE);
                return SNMP_ERR_WRONGVALUE;
            }
        }
        break;

    case MODE_SET_COMMIT:
        enabled = *requests->requestvb->val.integer;
	if (enabled == 2 )	/* false */
	    enabled = 0;
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
	                       NETSNMP_DS_LIB_DUMP_PACKET, enabled);
        break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
    }

    return SNMP_ERR_NOERROR;
}
コード例 #10
0
/*! \fn void snmp_spine_init()
 *  \brief wrapper function for init_snmp
 *
 *	Initializes snmp for the given application ID
 *
 */
void snmp_spine_init(void) {
#ifdef USE_NET_SNMP
	/* Only do numeric output */
	#ifdef NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM
		netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM, 1);
	#endif

	/* Prevent update of the snmpapp.conf file */
	#ifdef NETSNMP_DS_LIB_DONT_PERSIST_STATE
		netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);
	#endif

	/* Prevent update of the snmpapp.conf file */
	#ifdef NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD
		netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD, 1);
	#endif

	#ifdef NETSNMP_DS_LIB_DONT_PRINT_UNITS
		netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PRINT_UNITS, 1);
	#endif

	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, 1);
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT, 1);
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_BARE_VALUE, 1);
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_NUMERIC_TIMETICKS, 1);

	#ifdef PACKAGE_VERSION
		/* check that the headers we compiled with match the library we linked with -
		   apparently not defined in UCD-SNMP...
		*/
		SPINE_LOG_DEBUG(("DEBUG: SNMP Header Version is %s\n", PACKAGE_VERSION));
		SPINE_LOG_DEBUG(("DEBUG: SNMP Library Version is %s\n", netsnmp_get_version()));

		if(STRMATCH(PACKAGE_VERSION,netsnmp_get_version())) {
			init_snmp("spine");
		}else{
			/* report the error and quit spine */
			die("ERROR: SNMP Library Version Mismatch (%s vs %s)",PACKAGE_VERSION,netsnmp_get_version());
		}
	#else
		SPINE_LOG_DEBUG(("DEBUG: Issues with SNMP Header Version information, assuming old version of Net-SNMP.\n"));
		init_snmp("spine");
	#endif
#else
	ds_set_boolean(DS_LIBRARY_ID, DS_LIB_QUICK_PRINT, 1);
	ds_set_boolean(DS_LIBRARY_ID, DS_LIB_PRINT_BARE_VALUE, 1);
	ds_set_boolean(DS_LIBRARY_ID, DS_LIB_NUMERIC_TIMETICKS, 1);

	init_snmp("spine");
#endif
}
コード例 #11
0
ファイル: basic_ui.c プロジェクト: ystk/debian-openipmi
int
snmp_init(selector_t *sel)
{
    struct snmp_session session;
#ifdef HAVE_NETSNMP
    netsnmp_transport *transport = NULL;
    static char *snmp_default_port = "udp:162";

    netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
			   NETSNMP_DS_LIB_MIB_ERRORS,
			   0);

    init_snmp("ipmi_ui");

    transport = netsnmp_tdomain_transport(snmp_default_port, 1, "udp");
    if (!transport) {
        snmp_sess_perror("ipmi_ui", &session);
	return -1;
    }
#else
    void *transport = NULL;
#endif
    snmp_sess_init(&session);
    session.peername = SNMP_DEFAULT_PEERNAME;
    session.version = SNMP_DEFAULT_VERSION;
    session.community_len = SNMP_DEFAULT_COMMUNITY_LEN;
    session.retries = SNMP_DEFAULT_RETRIES;
    session.timeout = SNMP_DEFAULT_TIMEOUT;
    session.local_port = SNMP_TRAP_PORT;
    session.callback = snmp_input;
    session.callback_magic = transport;
    session.authenticator = NULL;
    session.isAuthoritative = SNMP_SESS_UNKNOWNAUTH;

#ifdef HAVE_NETSNMP
    snmp_session = snmp_add(&session, transport, snmp_pre_parse, NULL);
#else
    snmp_session = snmp_open_ex(&session, snmp_pre_parse,
				NULL, NULL, NULL, NULL);
#endif
    if (snmp_session == NULL) {
        snmp_sess_perror("ipmi_ui", &session);
	return -1;
    }

    ipmi_sel_set_read_fds_handler(sel,
				  snmp_add_read_fds,
				  snmp_check_read_fds,
				  snmp_check_timeout,
				  NULL);

    return 0;
}
コード例 #12
0
ファイル: nsCache.c プロジェクト: curtiszimmerman/rcp100
int
handle_nsCacheEnabled(netsnmp_mib_handler *handler,
                      netsnmp_handler_registration *reginfo,
                      netsnmp_agent_request_info *reqinfo,
                      netsnmp_request_info *requests)
{
    long enabled;
    netsnmp_request_info *request=NULL;

    switch (reqinfo->mode) {

    case MODE_GET:
        enabled =  (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
                                           NETSNMP_DS_AGENT_NO_CACHING)
                    ? NSCACHE_STATUS_ENABLED    /* Actually True/False */
                    : NSCACHE_STATUS_DISABLED );
        for (request = requests; request; request=request->next) {
            snmp_set_var_typed_value(request->requestvb, ASN_INTEGER,
                                     (u_char*)&enabled, sizeof(enabled));
        }
        break;


#ifndef NETSNMP_NO_WRITE_SUPPORT
    case MODE_SET_RESERVE1:
        for (request = requests; request; request=request->next) {
            if ( request->status != 0 ) {
                return SNMP_ERR_NOERROR;	/* Already got an error */
            }
            if ( request->requestvb->type != ASN_INTEGER ) {
                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGTYPE);
                return SNMP_ERR_WRONGTYPE;
            }
            if ((*request->requestvb->val.integer != NSCACHE_STATUS_ENABLED) &&
                    (*request->requestvb->val.integer != NSCACHE_STATUS_DISABLED)) {
                netsnmp_set_request_error(reqinfo, request, SNMP_ERR_WRONGVALUE);
                return SNMP_ERR_WRONGVALUE;
            }
        }
        break;

    case MODE_SET_COMMIT:
        enabled = *requests->requestvb->val.integer;
        if (enabled == NSCACHE_STATUS_DISABLED)
            enabled = 0;
        netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
                               NETSNMP_DS_AGENT_NO_CACHING, enabled);
        break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
    }

    return SNMP_ERR_NOERROR;
}
コード例 #13
0
static void
netsnmp_ds_set_init (void)
{
    netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
                          NETSNMP_DS_LIB_APPTYPE, DNAME_JNX_EXAMPLED);

    netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID, 
                          NETSNMP_DS_AGENT_X_SOCKET, PATH_MASTER_AGENTX);

    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE,
                           SUB_AGENT);
}
コード例 #14
0
ファイル: snmp_subagent.c プロジェクト: adanivas/bigcode
int
snmp_subagent_init(void)
{
    static int initialized__ = 0;

    if(initialized__) {
        return 0;
    }

    snmp_subagent_snmplog_init();
    snmp_subagent_client_init();

    snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_LOGGING,
                           snmp_subagent_snmplog_callback, NULL);
    snmp_enable_calllog();

    snmp_register_callback(SNMP_CALLBACK_APPLICATION,
                           SNMPD_CALLBACK_INDEX_START,
                           snmp_callback_start__, NULL);

    snmp_register_callback(SNMP_CALLBACK_APPLICATION,
                           SNMPD_CALLBACK_INDEX_STOP,
                           snmp_callback_stop__, NULL);

    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
                           NETSNMP_DS_AGENT_ROLE, 1);

    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
                           NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS, 1);

    initialized__ = 1;


#if SNMP_SUBAGENT_CONFIG_INCLUDE_EXAMPLE_CLIENT == 1
    snmp_subagent_client_register("snmp_subagent_example_client",
                                  snmp_subagent_example_client, NULL);
#endif

    return 0;
}
コード例 #15
0
ファイル: infinetfs_agent.cpp プロジェクト: ashishlal/c--
/* int main (int argc, char **argv) */
int init_ifs_agent()
{
  int agentx_subagent=1; /* change this if you want to be a SNMP master agent */
  int background = 0; /* change this if you want to run in the background */
  int syslog = 0; /* change this if you want to use syslog */

  std::cout << ".......1........." << std::endl;
  /* print log errors to syslog or stderr */
  if (syslog)
    snmp_enable_calllog();
  else
    snmp_enable_stderrlog();
 
  std::cout << ".......1........." << std::endl;
  /* 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);
  }

  /* run in background, if requested */
  if (background && netsnmp_daemonize(1, !syslog))
      exit(1);

  /* initialize tcpip, if necessary */
  SOCK_STARTUP;

  /* initialize the agent library */
  init_agent("infinetfs_agent");

  /* initialize mib code here */

  /* mib code: init_nstAgentSubagentObject from nstAgentSubagentObject.C */
  /* init_nstAgentSubagentObject();  */
  init_infinetfs_mib_module();

  /* example-demon will be used to read example-demon.conf files. */
  init_snmp("infinetfs_agent");

  /* If we're going to be a snmp master agent, initial the ports */
  if (!agentx_subagent)
    init_master_agent();  /* open the port to listen on (defaults to udp:161) */

  /* In case we recevie a request to stop (kill -TERM or kill -INT) */
  keep_running = 1;
  signal(SIGTERM, stop_server);
  signal(SIGINT, stop_server);

  snmp_log(LOG_INFO,"infinetfs_agent is up and running.\n");
  return 0;
}
コード例 #16
0
ファイル: sub_agent.c プロジェクト: kamailio/kamailio
/*! This function opens up a connection with the master agent specified in
 * the snmpstats modules configuration file */
void register_with_master_agent(char *name_to_register_under)
{
    /* Set ourselves up as an AgentX Client. */
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE, 1);

    /* Initialize TCP if necessary.  (Its here for WIN32) compatibility. */
    SOCK_STARTUP;

    LM_DBG("Connecting to SNMPD MasterX\n");
    /* Read in our configuration file to determine master agent ping times
     * what port communication is to take place over, etc. */
    init_agent("snmpstats");

    /* Use a name we can register our agent under. */
    init_snmp(name_to_register_under);
    LM_DBG("** Connected to SNMPD MasterX\n");
}
コード例 #17
0
int init_snmp_agent(void)
{
	int result;

	if (user_settings.is_master_agent) {
		netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE, 1);
	} else {
		netsnmp_enable_subagent();
	}

	if (user_settings.agentx_address != NULL) {
		netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_X_SOCKET, user_settings.agentx_address);
	}

	if (user_settings.daemonize)
		snmp_enable_syslog();
	else
		snmp_enable_stderrlog();	

	SOCK_STARTUP;

	if ((result = init_agent("collectd-agent")) != 0) {
		return -1;
	}

	if ((result = register_value_handlers()) != 0) {
		return -1;
	}

	if ((result = register_table_handlers()) != 0) {
		return -1;
	}

	if (user_settings.is_master_agent) {
		init_vacm_vars();
		init_usmUser();
	}

	init_snmp("collectd-snmpd");

	if (user_settings.is_master_agent) {
		init_master_agent();
	}

	return 0;
}
コード例 #18
0
ファイル: exa_agentx.c プロジェクト: OznOg/OpenExanodes
static void init_snmp_subagent(const char *agentx_host, int agentx_port)
{
    char agentx_socket[128];
    int background = 1; /* change this if you want to run in the background */
    int syslog = 0; /* change this if you want to use syslog */

    snmp_enable_filelog("/var/log/exa_agentx.log", 1);

    snmp_log(LOG_INFO, "exa_agentx configured to connect to %s:%d\n",
	     agentx_host, agentx_port);

    /* we're in an agentx subagent */
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE, 1);
    sprintf(agentx_socket, "tcp:%s:%d", agentx_host, agentx_port);
    netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
                          NETSNMP_DS_AGENT_X_SOCKET, agentx_socket);

    /* run in background, if requested */
    if (background && netsnmp_daemonize(1, !syslog))
        exit(1);

    snmp_log(LOG_INFO, "exa_agentx daemonized\n");

    /* initialize tcpip, if necessary */
    SOCK_STARTUP;

    /* initialize the agent library */
    init_agent("exa_agentx");

    /* initialize mib code here */

    /* mib code: init_nstAgentSubagentObject from nstAgentSubagentObject.C */
    /* not necessary to just send TRAPs !! */
/*   init_mib_int_watch(); */

    /* example-demon will be used to read example-demon.conf files. */
    init_snmp("exa_agentx");

    /* In case we recevie a request to stop (kill -TERM or kill -INT) */
    stop = false;
    signal(SIGTERM, stop_server);
    signal(SIGINT, stop_server);

    snmp_log(LOG_INFO, "exa_agentx is up and running.\n");
}
コード例 #19
0
void
maybe_source_perl_startup(void)
{
    const char     *embedargs[] = { "", "" };
    const char     *perl_init_file = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
							   NETSNMP_DS_AGENT_PERL_INIT_FILE);
    char            init_file[SNMP_MAXBUF];

    static int      have_done_init = 0;

    if (have_done_init)
        return;
    have_done_init = 1;

    if (!perl_init_file) {
        snprintf(init_file, sizeof(init_file) - 1,
                 "%s/%s", SNMPSHAREPATH, "snmp_perl.pl");
        perl_init_file = init_file;
    }
    embedargs[1] = perl_init_file;

    DEBUGMSGTL(("perl", "initializing perl (%s)\n", embedargs[1]));
    my_perl = perl_alloc();
    if (!my_perl)
        goto bail_out;

    perl_construct(my_perl);
    if (perl_parse(my_perl, xs_init, 2, (char **) embedargs, NULL))
        goto bail_out;

    if (perl_run(my_perl))
        goto bail_out;

    DEBUGMSGTL(("perl", "done initializing perl\n"));

    return;

  bail_out:
    snmp_log(LOG_ERR, "embedded perl support failed to initalize\n");
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_DISABLE_PERL, 1);
    return;
}
コード例 #20
0
ファイル: snmp.c プロジェクト: cyclops8456/vyatta-keepalived
void
snmp_agent_init(oid *myoid, int len, char *name, struct variable *variables,
		int varsize, int varlen)
{
	log_message(LOG_INFO, "Starting SNMP subagent");
	netsnmp_enable_subagent();
	snmp_disable_log();
	snmp_enable_calllog();
	snmp_register_callback(SNMP_CALLBACK_LIBRARY,
			       SNMP_CALLBACK_LOGGING,
			       snmp_keepalived_log,
			       NULL);

	/* Do not handle persistent states */
	netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
	    NETSNMP_DS_LIB_DONT_PERSIST_STATE, TRUE);
	/* Do not load any MIB */
	setenv("MIBS", "", 1);
	/* Ping AgentX less often than every 15 seconds: pinging can
	   block keepalived. We check every 2 minutes. */
	netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
			   NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL, 120);
	/* We also register a callback to modify default timeout and
	   retries value. */
	snmp_register_callback(SNMP_CALLBACK_LIBRARY,
			       SNMP_CALLBACK_SESSION_INIT,
			       snmp_setup_session_cb, NULL);

	init_agent(name);
	if (register_mib(name, (struct variable *) variables, varsize,
			 varlen, myoid, len) != MIB_REGISTERED_OK)
		log_message(LOG_WARNING, "Unable to register MIB");
	register_mib("Keepalived", (struct variable *) global_vars,
		     sizeof(struct variable8),
		     sizeof(global_vars)/sizeof(struct variable8),
		     global_oid, OID_LENGTH(global_oid));
	init_snmp(name);

	register_sysORTable(global_oid, OID_LENGTH(global_oid) - 1,
			    "The MIB module for Keepalived");
}
コード例 #21
0
ファイル: agentx_config.c プロジェクト: 274914765/C
void agentx_parse_master (const char *token, char *cptr)
{
    int i = -1;

    if (!strcmp (cptr, "agentx") || !strcmp (cptr, "all") || !strcmp (cptr, "yes") || !strcmp (cptr, "on"))
    {
        i = 1;
        snmp_log (LOG_INFO, "Turning on AgentX master support.\n");
    }
    else if (!strcmp (cptr, "no") || !strcmp (cptr, "off"))
        i = 0;
    else
        i = atoi (cptr);

    if (i < 0 || i > 1)
    {
        netsnmp_config_error ("master '%s' unrecognised", cptr);
    }
    else
        netsnmp_ds_set_boolean (NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_AGENTX_MASTER, i);
}
コード例 #22
0
ファイル: snmp_agent.cpp プロジェクト: mash0304/cpp-common
// Set up the SNMP agent. Returns 0 if it succeeds.
int snmp_setup(const char* name)
{
  // Make sure we start as a subagent, not a master agent.
  netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE, 1);

  // Use callback-based logging, and integrate it with the Clearwater logger
  snmp_enable_calllog();
  snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_LOGGING, logging_callback, NULL);

  netsnmp_container_init_list();
  int rc = init_agent(name);
  if (rc != 0)
  {
    TRC_WARNING("SNMP AgentX initialization failed");
  }
  else
  {
    TRC_STATUS("AgentX agent initialised");
  }
  return rc;
}
コード例 #23
0
PEGASUS_NAMESPACE_BEGIN

void snmpDeliverTrap_netsnmp::initialize()
{
    PEG_METHOD_ENTER(TRC_IND_HANDLER, "snmpDeliverTrap_netsnmp::initialize");

    // Defined default MIB modules (in net-snmp-config.h) do not need to be
    // loaded and loading them can cause some stderr;
    // use environment variable MIBS to override the default MIB modules.
    // If there is no MIBS environment variable, add it in.
    char* envVar;
    envVar = getenv("MIBS");

    if (envVar == NULL)
    {
        putenv("MIBS=");
    }

    // Initialize the mib reader
    netsnmp_set_mib_directory("");
    init_mib();

    // Initializes the SNMP library
    init_snmp("snmpIndicationHandler");

    // don't load/save persistent file
#ifdef NETSNMP_DS_LIB_DONT_PERSIST_STATE
    netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
        NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);
#endif

    // windows32 specific initialization (is a NOOP on unix)
    SOCK_STARTUP;

    PEG_METHOD_EXIT();
}
コード例 #24
0
ファイル: snmptrapd.c プロジェクト: michalklempa/net-snmp
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();
}
コード例 #25
0
ファイル: snmpd.c プロジェクト: WimObiwan/net-snmp
main(int argc, char *argv[])
#endif
{
    char            options[128] = "aAc:CdD::fhHI:l:L:m:M:n:p:P:qrsS:UvV-:Y:";
    int             arg, i, ret;
    int             dont_fork = 0, do_help = 0;
    int             log_set = 0;
    int             agent_mode = -1;
    char           *pid_file = NULL;
    char            option_compatability[] = "-Le";
#ifndef WIN32
    int             prepared_sockets = 0;
#endif
#if HAVE_GETPID
    int fd;
    FILE           *PID;
#endif

#ifndef WIN32
#ifndef NETSNMP_NO_SYSTEMD
    /* check if systemd has sockets for us and don't close them */
    prepared_sockets = netsnmp_sd_listen_fds(0);
#endif /* NETSNMP_NO_SYSTEMD */

    /*
     * close all non-standard file descriptors we may have
     * inherited from the shell.
     */
    if (!prepared_sockets) {
        for (i = getdtablesize() - 1; i > 2; --i) {
            (void) close(i);
        }
    }
#endif /* #WIN32 */
    
    /*
     * register signals ASAP to prevent default action (usually core)
     * for signals during startup...
     */
#ifdef SIGTERM
    DEBUGMSGTL(("signal", "registering SIGTERM signal handler\n"));
    signal(SIGTERM, SnmpdShutDown);
#endif
#ifdef SIGINT
    DEBUGMSGTL(("signal", "registering SIGINT signal handler\n"));
    signal(SIGINT, SnmpdShutDown);
#endif
#ifdef SIGHUP
    signal(SIGHUP, SIG_IGN);   /* do not terminate on early SIGHUP */
#endif
#ifdef SIGUSR1
    DEBUGMSGTL(("signal", "registering SIGUSR1 signal handler\n"));
    signal(SIGUSR1, SnmpdDump);
#endif
#ifdef SIGPIPE
    DEBUGMSGTL(("signal", "registering SIGPIPE signal handler\n"));
    signal(SIGPIPE, SIG_IGN);   /* 'Inline' failure of wayward readers */
#endif
#ifdef SIGXFSZ
    signal(SIGXFSZ, SnmpdCatchRandomSignal);
#endif

#ifdef NETSNMP_NO_ROOT_ACCESS
    /*
     * Default to no.  
     */
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
#endif
    /*
     * Default to NOT running an AgentX master.  
     */
    netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
			   NETSNMP_DS_AGENT_AGENTX_MASTER, 0);
    netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
                       NETSNMP_DS_AGENT_AGENTX_TIMEOUT, -1);
    netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
                       NETSNMP_DS_AGENT_AGENTX_RETRIES, -1);

    netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
                       NETSNMP_DS_AGENT_CACHE_TIMEOUT, 5);
    /*
     * Add some options if they are available.  
     */
#if HAVE_UNISTD_H
    strcat(options, "g:u:");
#endif
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
    strcat(options, "x:");
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
    strcat(options, "X");
#endif

    /*
     * This is incredibly ugly, but it's probably the simplest way
     *  to handle the old '-L' option as well as the new '-Lx' style
     */
    for (i=0; i<argc; i++) {
        if (!strcmp(argv[i], "-L"))
            argv[i] = option_compatability;            
    }

#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 */
    netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
                          NETSNMP_DS_LIB_APPTYPE, app_name);

    /*
     * Now process options normally.  
     */
    while ((arg = getopt(argc, argv, options)) != EOF) {
        switch (arg) {
        case '-':
            if (strcasecmp(optarg, "help") == 0) {
                usage(argv[0]);
            }
            if (strcasecmp(optarg, "version") == 0) {
                version();
            }

            handle_long_opt(optarg);
            break;

        case 'a':
            log_addresses++;
            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(argv[0]);
            }
            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,
                                   ++snmp_dump_packet);
            break;

        case 'D':
            debug_register_tokens(optarg);
            snmp_set_do_debugging(1);
            break;

        case 'f':
            dont_fork = 1;
            break;

#if HAVE_UNISTD_H
        case 'g':
            if (optarg != NULL) {
                char           *ecp;
                int             gid;

                gid = strtoul(optarg, &ecp, 10);
#if HAVE_GETGRNAM && HAVE_PWD_H
                if (*ecp) {
                    struct group  *info;

                    info = getgrnam(optarg);
                    gid = info ? info->gr_gid : -1;
                    endgrent();
                }
#endif
                if (gid < 0) {
                    fprintf(stderr, "Bad group id: %s\n", optarg);
                    exit(1);
                }
                netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID, 
				   NETSNMP_DS_AGENT_GROUPID, gid);
            } else {
                usage(argv[0]);
            }
            break;
#endif

        case 'h':
            usage(argv[0]);
            break;

        case 'H':
            do_help = 1;
            break;

        case 'I':
            if (optarg != NULL) {
                add_to_init_list(optarg);
            } else {
                usage(argv[0]);
            }
            break;

#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_FILE
        case 'l':
            printf("Warning: -l option is deprecated, use -Lf <file> instead\n");
            if (optarg != NULL) {
                if (strlen(optarg) > PATH_MAX) {
                    fprintf(stderr,
                            "%s: logfile path too long (limit %d chars)\n",
                            argv[0], PATH_MAX);
                    exit(1);
                }
                snmp_enable_filelog(optarg,
                                    netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
                                                           NETSNMP_DS_LIB_APPEND_LOGFILES));
                log_set = 1;
            } else {
                usage(argv[0]);
            }
            break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_FILE */

        case 'L':
	    if  (snmp_log_options( optarg, argc, argv ) < 0 ) {
                usage(argv[0]);
            }
            log_set = 1;
            break;

        case 'm':
            if (optarg != NULL) {
                setenv("MIBS", optarg, 1);
            } else {
                usage(argv[0]);
            }
            break;

        case 'M':
            if (optarg != NULL) {
                setenv("MIBDIRS", optarg, 1);
            } else {
                usage(argv[0]);
            }
            break;

        case 'n':
            if (optarg != NULL) {
                app_name = optarg;
                netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
                                      NETSNMP_DS_LIB_APPTYPE, app_name);
            } else {
                usage(argv[0]);
            }
            break;

        case 'P':
            printf("Warning: -P option is deprecated, use -p instead\n");
        case 'p':
            if (optarg != NULL) {
                pid_file = optarg;
            } else {
                usage(argv[0]);
            }
            break;

        case 'q':
            netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, 
                                   NETSNMP_DS_LIB_QUICK_PRINT, 1);
            break;

        case 'r':
            netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID, 
				      NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
            break;

#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
        case 's':
            printf("Warning: -s option is deprecated, use -Lsd instead\n");
            snmp_enable_syslog();
            log_set = 1;
            break;

        case 'S':
            printf("Warning: -S option is deprecated, use -Ls <facility> instead\n");
            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(argv[0]);
                }
                snmp_enable_syslog_ident(snmp_log_syslogname(NULL), Facility);
                log_set = 1;
            } else {
                fprintf(stderr, "no syslog facility specified\n");
                usage(argv[0]);
            }
            break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */

        case 'U':
            netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID, 
				      NETSNMP_DS_AGENT_LEAVE_PIDFILE);
            break;

#if HAVE_UNISTD_H
        case 'u':
            if (optarg != NULL) {
                char           *ecp;
                int             uid;

                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);
                    exit(1);
                }
                netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID, 
				   NETSNMP_DS_AGENT_USERID, uid);
            } else {
                usage(argv[0]);
            }
            break;
#endif

        case 'v':
            version();

        case 'V':
            netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
				   NETSNMP_DS_AGENT_VERBOSE, 1);
            break;

#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
        case 'x':
            if (optarg != NULL) {
                netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID, 
				      NETSNMP_DS_AGENT_X_SOCKET, optarg);
            } else {
                usage(argv[0]);
            }
            netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
				   NETSNMP_DS_AGENT_AGENTX_MASTER, 1);
            break;
#endif

        case 'X':
#if defined(USING_AGENTX_SUBAGENT_MODULE)
            agent_mode = SUB_AGENT;
#else
            fprintf(stderr, "%s: Illegal argument -X:"
		            "AgentX support not compiled in.\n", argv[0]);
            usage(argv[0]);
            exit(1);
#endif
            break;

        case 'Y':
            netsnmp_config_remember(optarg);
            break;

        default:
            usage(argv[0]);
            break;
        }
    }

    if (do_help) {
        netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID, 
                               NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
        init_agent(app_name);        /* register our .conf handlers */
        init_mib_modules();
        init_snmp(app_name);
        fprintf(stderr, "Configuration directives understood:\n");
        read_config_print_usage("  ");
        exit(0);
    }

    if (optind < argc) {
#ifndef NETSNMP_NO_LISTEN_SUPPORT
        /*
         * There are optional transport addresses on the command line.  
         */
        DEBUGMSGTL(("snmpd/main", "optind %d, argc %d\n", optind, argc));
        for (i = optind; i < argc; i++) {
            char *c, *astring;
            if ((c = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID, 
					   NETSNMP_DS_AGENT_PORTS))) {
                astring = (char*)malloc(strlen(c) + 2 + strlen(argv[i]));
                if (astring == NULL) {
                    fprintf(stderr, "malloc failure processing argv[%d]\n", i);
                    exit(1);
                }
                sprintf(astring, "%s,%s", c, argv[i]);
                netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID, 
				      NETSNMP_DS_AGENT_PORTS, astring);
                SNMP_FREE(astring);
            } else {
                netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID, 
				      NETSNMP_DS_AGENT_PORTS, argv[i]);
            }
        }
        DEBUGMSGTL(("snmpd/main", "port spec: %s\n",
                    netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID, 
					  NETSNMP_DS_AGENT_PORTS)));
#else /* NETSNMP_NO_LISTEN_SUPPORT */
        fprintf(stderr, "You specified ports to open; this agent was built to only send notifications\n");
        exit(1);
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
    }

#ifdef NETSNMP_LOGFILE
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_FILE
    if (0 == log_set)
        snmp_enable_filelog(NETSNMP_LOGFILE,
                            netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
                                                   NETSNMP_DS_LIB_APPEND_LOGFILES));
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_FILE */
#endif

#ifdef USING_UTIL_FUNCS_RESTART_MODULE
    {
        /*
         * Initialize a argv set to the current for restarting the agent.
         */
        char *cptr, **argvptr;

        argvrestartp = (char **)malloc((argc + 2) * sizeof(char *));
        argvptr = argvrestartp;
        for (i = 0, ret = 1; i < argc; i++) {
            ret += strlen(argv[i]) + 1;
        }
        argvrestart = (char *) malloc(ret);
        argvrestartname = (char *) malloc(strlen(argv[0]) + 1);
        if (!argvrestartp || !argvrestart || !argvrestartname) {
            fprintf(stderr, "malloc failure processing argvrestart\n");
            exit(1);
        }
        strcpy(argvrestartname, argv[0]);

        for (cptr = argvrestart, i = 0; i < argc; i++) {
            strcpy(cptr, argv[i]);
            *(argvptr++) = cptr;
            cptr += strlen(argv[i]) + 1;
        }
    }
#endif /* USING_UTIL_FUNCS_RESTART_MODULE */

    if (agent_mode == -1) {
        if (strstr(argv[0], "agentxd") != NULL) {
            netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
				   NETSNMP_DS_AGENT_ROLE, SUB_AGENT);
        } else {
            netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
				   NETSNMP_DS_AGENT_ROLE, MASTER_AGENT);
        }
    } else {
        netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
			       NETSNMP_DS_AGENT_ROLE, agent_mode);
    }

    SOCK_STARTUP;
    if (init_agent(app_name) != 0) {
        snmp_log(LOG_ERR, "Agent initialization failed\n");
        exit(1);
    }
    init_mib_modules();

    /*
     * start library 
     */
    init_snmp(app_name);

    if ((ret = init_master_agent()) != 0) {
        /*
         * Some error opening one of the specified agent transports.  
         */
        snmp_log(LOG_ERR, "Server Exiting with code 1\n");
        exit(1);
    }

    /*
     * Initialize the world.  Detach from the shell.  Create initial user.  
     */
    if(!dont_fork) {
        int quit = ! netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
                                            NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
        ret = netsnmp_daemonize(quit,
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_STDIO
                                snmp_stderrlog_status()
#else /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
                                0
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
            );
        /*
         * xxx-rks: do we care if fork fails? I think we should...
         */
        if(ret != 0) {
            snmp_log(LOG_ERR, "Server Exiting with code 1\n");
            exit(1);
        }
    }

#if HAVE_GETPID
    if (pid_file != NULL) {
        /*
         * unlink the pid_file, if it exists, prior to open.  Without
         * doing this the open will fail if the user specified pid_file
         * already exists.
         */
        unlink(pid_file);
        fd = open(pid_file, O_CREAT | O_EXCL | O_WRONLY, 0600);
        if (fd == -1) {
            snmp_log_perror(pid_file);
            if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, 
                                        NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
                exit(1);
            }
        } else {
            if ((PID = fdopen(fd, "w")) == NULL) {
                snmp_log_perror(pid_file);
                exit(1);
            } else {
                fprintf(PID, "%d\n", (int) getpid());
                fclose(PID);
            }
#ifndef _MSC_VER
            /* The sequence open()/fdopen()/fclose()/close() makes MSVC crash,
               hence skip the close() call when using the MSVC runtime. */
            close(fd);
#endif
        }
    }
#endif

#if defined(HAVE_UNISTD_H) && (defined(HAVE_CHOWN) || defined(HAVE_SETGID) || defined(HAVE_SETUID))
    {
    const char     *persistent_dir;
    int             uid, gid;

    persistent_dir = get_persistent_directory();
    mkdirhier( persistent_dir, NETSNMP_AGENT_DIRECTORY_MODE, 0 );
   
    uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID, 
			     NETSNMP_DS_AGENT_USERID);
    gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID, 
			     NETSNMP_DS_AGENT_GROUPID);
    
#ifdef HAVE_CHOWN
    if ( uid != 0 || gid != 0 )
        chown( persistent_dir, uid, gid );
#endif

#ifdef HAVE_SETGID
    if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID, 
				  NETSNMP_DS_AGENT_GROUPID)) > 0) {
        DEBUGMSGTL(("snmpd/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) {
#if HAVE_GETPWNAM && HAVE_PWD_H && HAVE_INITGROUPS
        struct passwd *info;

        /*
         * Set supplementary groups before changing UID
         *   (which probably involves giving up privileges)
         */
        info = getpwuid(uid);
        if (info) {
            DEBUGMSGTL(("snmpd/main", "Supplementary groups for %s.\n", info->pw_name));
            if (initgroups(info->pw_name, (gid != 0 ? (gid_t)gid : info->pw_gid)) == -1) {
                snmp_log_perror("initgroups failed");
                if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, 
                                            NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
                    exit(1);
                }
            }
        }
        endpwent();
#endif
        DEBUGMSGTL(("snmpd/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

    /*
     * Store persistent data immediately in case we crash later.  
     */
    snmp_store(app_name);

#ifdef SIGHUP
    DEBUGMSGTL(("signal", "registering SIGHUP signal handler\n"));
    signal(SIGHUP, SnmpdReconfig);
#endif

    /*
     * Send coldstart trap if possible.  
     */
    send_easy_trap(0, 0);

    /*
     * We're up, log our version number.  
     */
    snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
#ifdef WIN32SERVICE
    agent_status = AGENT_RUNNING;
#endif
    netsnmp_addrcache_initialise();

    /*
     * 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

    /*
     * Forever monitor the dest_port for incoming PDUs.  
     */
    DEBUGMSGTL(("snmpd/main", "We're up.  Starting to process data.\n"));
    if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, 
				NETSNMP_DS_AGENT_QUIT_IMMEDIATELY))
        receive();
    DEBUGMSGTL(("snmpd/main", "sending shutdown trap\n"));
    SnmpTrapNodeDown();
    DEBUGMSGTL(("snmpd/main", "Bye...\n"));
    snmp_shutdown(app_name);
    shutdown_master_agent();
    shutdown_agent();

    if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, 
				NETSNMP_DS_AGENT_LEAVE_PIDFILE) &&
	(pid_file != NULL)) {
        unlink(pid_file);
    }
#ifdef WIN32SERVICE
    agent_status = AGENT_STOPPED;
#endif

#ifdef USING_UTIL_FUNCS_RESTART_MODULE
    SNMP_FREE(argvrestartname);
    SNMP_FREE(argvrestart);
    SNMP_FREE(argvrestartp);
#endif /* USING_UTIL_FUNCS_RESTART_MODULE */

    SOCK_CLEANUP;
    return 0;
}                               /* End main() -- snmpd */
コード例 #26
0
ファイル: snmp_vars.c プロジェクト: Nymphetaminer/dsl-n55u
/**
 * Initialize the agent.  Calls into init_agent_read_config to set tha app's
 * configuration file in the appropriate default storage space,
 *  NETSNMP_DS_LIB_APPTYPE.  Need to call init_agent before calling init_snmp.
 *
 * @param app the configuration file to be read in, gets stored in default
 *        storage
 *
 * @return Returns non-zero on failure and zero on success.
 *
 * @see init_snmp
 */
int
init_agent(const char *app)
{
    int             r = 0;

    if(++done_init_agent > 1) {
        snmp_log(LOG_WARNING, "ignoring extra call to init_agent (%d)\n", 
                 done_init_agent);
        return r;
    }

    /*
     * get current time (ie, the time the agent started) 
     */
    gettimeofday(&starttime, NULL);
    starttime.tv_sec--;
    starttime.tv_usec += 1000000L;

    /*
     * we handle alarm signals ourselves in the select loop 
     */
    netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, 
			   NETSNMP_DS_LIB_ALARM_DONT_USE_SIG, 1);

#ifdef CAN_USE_NLIST
    init_kmem("/dev/kmem");
#endif

    setup_tree();

    init_agent_read_config(app);

#ifdef TESTING
    auto_nlist_print_tree(-2, 0);
#endif

    _init_agent_callback_transport();
    
    netsnmp_init_helpers();
    init_traps();
    netsnmp_container_init_list();

#if defined(USING_AGENTX_SUBAGENT_MODULE) || defined(USING_AGENTX_MASTER_MODULE)
    /*
     * initialize agentx configs
     */
    agentx_config_init();
    if(netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
                              NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
        subagent_init();
#endif

    /*
     * Register configuration tokens from transport modules.  
     */
#ifdef SNMP_TRANSPORT_UDP_DOMAIN
    netsnmp_udp_agent_config_tokens_register();
#endif
#ifdef SNMP_TRANSPORT_UDPIPV6_DOMAIN
    netsnmp_udp6_agent_config_tokens_register();
#endif
#ifdef SNMP_TRANSPORT_UNIX_DOMAIN
    netsnmp_unix_agent_config_tokens_register();
#endif

#ifdef NETSNMP_EMBEDDED_PERL
    init_perl();
#endif

#ifdef USING_AGENTX_SUBAGENT_MODULE
    /*
     * don't init agent modules for a sub-agent
     */
    if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, 
			       NETSNMP_DS_AGENT_ROLE) == SUB_AGENT)
        return r;
#endif

#  include "agent_module_inits.h"

    return r;
}                               /* end init_agent() */
コード例 #27
0
netsnmp_session *mp_snmp_init(void) {

    netsnmp_session session, *ss;
    int status;

    init_snmp(progname);

    snmp_sess_init( &session );

    if (mp_snmp_community == NULL)
        mp_snmp_community = mp_strdup("public");

    mp_asprintf(&(session.peername), "%s:%d", hostname, port);

    switch(mp_snmp_version) {
        case SNMP_VERSION_1:
            session.version = SNMP_VERSION_1;
            session.community = (u_char *)mp_snmp_community;
            session.community_len = strlen((char *)session.community);
            break;
        case SNMP_VERSION_2c:
            session.version = SNMP_VERSION_2c;
            session.community = (u_char *)mp_snmp_community;
            session.community_len = strlen((char *)session.community);
            break;
        case SNMP_VERSION_3:
            session.version = SNMP_VERSION_3;

            session.securityName = mp_strdup(mp_snmp_secname);
            session.securityNameLen = strlen(session.securityName);

            /* set the security level */
            session.securityLevel = mp_snmp_seclevel;
            session.contextName = mp_strdup(mp_snmp_context);

            session.contextNameLen = strlen(session.contextName);

            /* set the authentication method */
            session.securityAuthProto = mp_snmp_authproto;
            session.securityAuthProtoLen = 10;
            session.securityAuthKeyLen = USM_AUTH_KU_LEN;

            status = generate_Ku(session.securityAuthProto,
                    session.securityAuthProtoLen,
                    (u_char *) mp_snmp_authpass, strlen(mp_snmp_authpass),
                    session.securityAuthKey,
                    &session.securityAuthKeyLen);
            if (status != SNMPERR_SUCCESS) {
                snmp_perror(progname);
                snmp_log(LOG_ERR,
                        "Error generating Ku from authentication pass phrase. \n%s\n",snmp_api_errstring(status));
                exit(1);
            }

            break;
    }

    netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
                           NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);

    SOCK_STARTUP;
    ss = snmp_open(&session);

    if (!ss) {
      snmp_sess_perror("ack", &session);
      SOCK_CLEANUP;
      exit(1);
    }

    free(session.peername);

    if (mp_snmp_retries > 0)
        ss->retries = mp_snmp_retries;
    if (mp_snmp_timeout > 0)
        ss->timeout = (long)(mp_snmp_timeout * 1000000L);

    return ss;

}
コード例 #28
0
ファイル: pgstatmibd.c プロジェクト: bugcy013/pgstatmib
int
main (int argc, char **argv) {

  int agentx_subagent = 1; // change this if you want to be a SNMP master agent
  int background = 0; // change this if you want to run in the background
  int syslog = 0; // change this if you want to use syslog

  const char *conninfo; // connection string (in libpq format)

  /* print log errors to syslog or stderr */
  if (syslog)
    snmp_enable_calllog();
  else
    snmp_enable_stderrlog();

  /* 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);
  }

  /* run in background, if requested */
  if (background && netsnmp_daemonize(1, !syslog))
      exit(1);

  /* initialize tcpip, if necessary */
  SOCK_STARTUP;

  /* initialize the agent library */
  init_agent("pgstatmibd");

  /* initialize mib code here */

	/*
	 * If the user supplies a parameter on the command line, use it as the
	 * conninfo string; otherwise default to setting dbname=postgres and using
	 * environment variables or defaults for all other connection parameters.
	 */
	if (argc > 1)
		conninfo = argv[1];
	else
		conninfo = "dbname=postgres user=postgres";

	/* Make a connection to the database */
	dbconn = PQconnectdb(conninfo);

	/* Check to see that the backend connection was successfully made */
	if (PQstatus(dbconn) != CONNECTION_OK)
	{
		//printf("Connection to database failed: %s",
		//		PQerrorMessage(dbconn));
		snmp_log(LOG_ERR, "Connection to database failed: %s",
				PQerrorMessage(dbconn));
		//exit_nicely(conn);
	}

  /* mib code */
  init_pgstatServer();
  init_pgstatDatabaseTable();
  init_pgstatBgWriter();

  /* initialize vacm/usm access control  */
  /*if (!agentx_subagent) {
      init_vacm_vars();
      init_usmUser();
  }*/

  /* pgstatmibd will be used to read pgstatmibd.conf files. */
  init_snmp("pgstatmibd");

  /* If we're going to be a snmp master agent, initial the ports */
  if (!agentx_subagent)
    init_master_agent();  /* open the port to listen on (defaults to udp:161) */

  /* In case we recevie a request to stop (kill -TERM or kill -INT) */
  keep_running = 1;
  signal(SIGTERM, stop_server);
  signal(SIGINT, stop_server);

  snmp_log(LOG_INFO, "pgstatmibd is up and running.\n");

  /* your main loop here... */
  while (keep_running) {
    /* if you use select(), see snmp_select_info() in snmp_api(3) */
    /*     --- OR ---  */
    agent_check_and_process(1); /* 0 == don't block */
  }

	/* close the connection to the database and cleanup */
	PQfinish(dbconn);

  /* at shutdown time */
  snmp_shutdown("pgstatmibd");
  SOCK_CLEANUP;

  return 0;
}
コード例 #29
0
ファイル: snmptrapd.c プロジェクト: Undrizzle/apps
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;
}
コード例 #30
0
ファイル: snmpmgr.c プロジェクト: tidatida/lagopus
static void
initialize_internal(void) {
  lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES;
  void *logger_client_arg = NULL;
  char *master_agentx_socket = NULL;
  char *ping_interval_string = NULL;
  uint16_t ping_interval = 0;

  state = SNMPMGR_NONE;

  /* `is_thread` is able to be changed only once here */
  is_thread = is_thread_dummy;
  if (is_thread == false && thdptr_dummy != NULL) {
    *thdptr_dummy = NULL;
  } else if (thdptr_dummy != NULL) {
    *thdptr_dummy = &snmpmgr;
  } else {
    /* never reached! */
    return;
  }

  if (lagopus_mutex_create(&snmp_lock) != LAGOPUS_RESULT_OK) {
    return;
  }

  if (lagopus_mutex_create(&snmp_state_lock) != LAGOPUS_RESULT_OK) {
    return;
  }

  snmp_set_do_debugging(false);

  /* setup Net-SNMP logger to use the lagopus logging function */
  if (snmp_register_callback(SNMP_CALLBACK_LIBRARY,
                             SNMP_CALLBACK_LOGGING,
                             snmp_log_callback_wrapper,
                             logger_client_arg) != SNMPERR_SUCCESS) {
    return;
  }
  snmp_enable_calllog();

  /* setup the SNMP module to be Agentx subagent */
  netsnmp_enable_subagent();

#ifdef THE_CONFSYS_ERA
  master_agentx_socket = config_get("snmp master-agentx-socket WORD");
  if (master_agentx_socket == NULL) {
    config_set_default("snmp master-agentx-socket WORD",
                       (char *)DEFAULT_SNMPMGR_AGENTX_SOCKET);
    master_agentx_socket = config_get("snmp master-agentx-socket WORD");
  }
#else
  /*
   * FIXME:
   *	Fetch it from the datastore.
   */
  master_agentx_socket = (char *)DEFAULT_SNMPMGR_AGENTX_SOCKET;
#endif /* THE_CONFSYS_ERA */
  lagopus_msg_debug(25, "master agentx socket is %s\n", master_agentx_socket);

  if (netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
                            NETSNMP_DS_AGENT_X_SOCKET,
                            master_agentx_socket)
      != SNMPERR_SUCCESS) {
    initialize_ret = LAGOPUS_RESULT_SNMP_API_ERROR;
    return;
  }

  /* don't read/write configuration files */
  if (netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
                             NETSNMP_DS_LIB_DONT_PERSIST_STATE,
                             true) != SNMPERR_SUCCESS) {
    initialize_ret = LAGOPUS_RESULT_SNMP_API_ERROR;
    return;
  }
  if (netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
                             NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD,
                             true) != SNMPERR_SUCCESS) {
    initialize_ret = LAGOPUS_RESULT_SNMP_API_ERROR;
    return;
  }

  /* the interval [sec] to send ping to AgentX master agent */
#ifdef THE_CONFSYS_ERA
  ping_interval_string = config_get("snmp ping-interval-second 1-255");
  if (ping_interval_string != NULL &&
      (ret = check_ping_interval(ping_interval_string, &ping_interval))
      != LAGOPUS_RESULT_OK) {
    config_set_default("snmp ping-interval-second 1-255",
                       (char *) __STR__(DEFAULT_SNMPMGR_AGENTX_PING_INTERVAL_SEC));
    ping_interval_string = config_get("snmp ping-interval-second 1-255");
    ping_interval = DEFAULT_SNMPMGR_AGENTX_PING_INTERVAL_SEC; /* default value */
  }
#else
  /*
   * FIXME:
   *	Fetch it from the datastore.
   */
  ping_interval = DEFAULT_SNMPMGR_AGENTX_PING_INTERVAL_SEC;
#endif /* THE_CONFSYS_ERA */

  if (netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
                         NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL,
                         (int)ping_interval)
      != SNMPERR_SUCCESS) {
    initialize_ret = LAGOPUS_RESULT_SNMP_API_ERROR;
    return;
  }

  if (init_agent(SNMP_TYPE) != SNMPERR_SUCCESS) {
    initialize_ret = LAGOPUS_RESULT_SNMP_API_ERROR;
    return;
  }

  if ((ret = lagopus_hashmap_create(&iftable_entry_hash,
                                    LAGOPUS_HASHMAP_TYPE_STRING,
                                    delete_entry)) != LAGOPUS_RESULT_OK) {
    lagopus_perror(ret);
    exit(1);
  }

  init_ifTable();
  init_ifNumber();
  init_dot1dBaseBridgeAddress();
  init_dot1dBaseNumPorts();
  init_dot1dBasePortTable();
  init_dot1dBaseType();

  if (is_thread == false) {
    initialize_ret = LAGOPUS_RESULT_OK;
  } else {
    keep_running = true;
    initialize_ret = lagopus_thread_create(&snmpmgr,
                                           snmpmgr_thread_loop,
                                           snmpmgr_thread_finally_called,
                                           NULL,
                                           "snmpmgr",
                                           NULL);
  }

  lagopus_msg_info("SNMP manager initialized.\n");
}