void
init_hrh_storage(void)
{
char *appname;
netsnmp_register_scalar(
netsnmp_create_handler_registration("host/hrMemorySize", handle_memsize,
hrMemorySize_oid, OID_LENGTH(hrMemorySize_oid),
HANDLER_CAN_RONLY));
REGISTER_MIB("host/hr_storage", hrstore_variables, variable2,
hrStorageTable_oid);
appname = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
netsnmp_ds_register_config(ASN_BOOLEAN, appname, "skipNFSInHostResources",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_SKIPNFSINHOSTRESOURCES);
netsnmp_ds_register_config(ASN_BOOLEAN, appname, "realStorageUnits",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_REALSTORAGEUNITS);
snmpd_register_config_handler("storageUseNFS", parse_storage_config, NULL,
"1 | 2\t\t(1 = enable, 2 = disable)");
}
void
netsnmp_ssh_ctor(void)
{
sshDomain.name = netsnmp_snmpSSHDomain;
sshDomain.name_length = netsnmp_snmpSSHDomain_len;
sshDomain.prefix = (const char **)calloc(2, sizeof(char *));
sshDomain.prefix[0] = "ssh";
sshDomain.f_create_from_tstring = NULL;
sshDomain.f_create_from_tstring_new = netsnmp_ssh_create_tstring;
sshDomain.f_create_from_ostring = netsnmp_ssh_create_ostring;
register_config_handler("snmp", "sshtosnmpsocketperms",
&sshdomain_parse_socket, NULL,
"socketperms [username [groupname]]");
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "sshtosnmpsocket",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SSHTOSNMP_SOCKET);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "sshusername",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SSH_USERNAME);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "sshpublickey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SSH_PUBKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "sshprivatekey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SSH_PRIVKEY);
DEBUGMSGTL(("ssh", "registering the ssh domain\n"));
netsnmp_tdomain_register(&sshDomain);
}
void
netsnmp_tlsbase_ctor(void) {
/* bootstrap ssl since we'll need it */
netsnmp_init_openssl();
/* the private client cert to authenticate with */
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "extraX509SubDir",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_CERT_EXTRA_SUBDIR);
/* Do we have a CRL list? */
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "x509CRLFile",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_X509_CRL_FILE);
/* What TLS algorithms should be use */
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "tlsAlgorithms",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_TLS_ALGORITMS);
/*
* for the client
*/
/* the public client cert to authenticate with */
register_config_handler("snmp", "clientCert", _parse_client_cert, NULL,
NULL);
/*
* for the server
*/
/* The X509 server key to use */
register_config_handler("snmp", "serverCert", _parse_server_cert, NULL,
NULL);
/*
* remove cert config ambiguity: localCert, peerCert
*/
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "localCert",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_TLS_LOCAL_CERT);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "peerCert",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_TLS_PEER_CERT);
/*
* register our boot-strapping needs
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_PREMIB_READ_CONFIG,
tls_bootstrap, NULL);
}
/** Initialize the TSM security module */
void
init_tsm(void)
{
struct snmp_secmod_def *def;
int ret;
def = SNMP_MALLOC_STRUCT(snmp_secmod_def);
if (!def) {
snmp_log(LOG_ERR,
"Unable to malloc snmp_secmod struct, not registering TSM\n");
return;
}
def->encode_reverse = tsm_rgenerate_out_msg;
def->decode = tsm_process_in_msg;
def->session_open = tsm_session_init;
def->pdu_free_state_ref = tsm_free_state_ref;
def->pdu_clone = tsm_clone_pdu;
def->pdu_free = tsm_free_pdu;
def->probe_engineid = snmpv3_probe_contextEngineID_rfc5343;
DEBUGMSGTL(("tsm","registering ourselves\n"));
ret = register_sec_mod(NETSNMP_TSM_SECURITY_MODEL, "tsm", def);
DEBUGMSGTL(("tsm"," returned %d\n", ret));
netsnmp_ds_register_config(ASN_BOOLEAN, "snmp", "tsmUseTransportPrefix",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_TSM_USE_PREFIX);
}
/*
* returns non-zero on error
*/
int
subagent_pre_init(void)
{
DEBUGMSGTL(("agentx/subagent", "initializing....\n"));
/*
* set up callbacks to initiate master agent pings for this session
*/
netsnmp_ds_register_config(ASN_INTEGER,
netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_APPTYPE),
"agentxPingInterval",
NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_ROLE) != SUB_AGENT) {
return 0;
}
/*
* if a valid ping interval has been defined, call agentx_reopen_session
* * to try to connect to master or setup a ping alarm if it couldn't
* * succeed
*/
if (netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL) > 0)
agentx_reopen_session(0, NULL);
else /* if no ping interval was set up, just try to connect once */
subagent_open_master_session();
if (!main_session)
return -1;
DEBUGMSGTL(("agentx/subagent", "initializing.... DONE\n"));
return 0;
}
void
init_ksm(void)
{
krb5_error_code retval;
struct snmp_secmod_def *def;
int i;
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defKSMKeytab",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_KSM_KEYTAB);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defKSMServiceName",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_KSM_SERVICE_NAME);
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_READ_CONFIG,
init_snmpksm_post_config, NULL);
if (kcontext == NULL) {
retval = krb5_init_context(&kcontext);
if (retval) {
DEBUGMSGTL(("ksm", "krb5_init_context failed (%s), not "
"registering KSM\n", error_message(retval)));
return;
}
}
for (i = 0; i < HASHSIZE; i++)
ksm_hash_table[i] = NULL;
def = SNMP_MALLOC_STRUCT(snmp_secmod_def);
if (!def) {
DEBUGMSGTL(("ksm", "Unable to malloc snmp_secmod struct, not "
"registering KSM\n"));
return;
}
def->encode_reverse = ksm_rgenerate_out_msg;
def->decode = ksm_process_in_msg;
def->session_open = ksm_session_init;
def->pdu_free_state_ref = ksm_free_state_ref;
def->pdu_free = ksm_free_pdu;
def->pdu_clone = ksm_clone_pdu;
register_sec_mod(2066432, "ksm", def);
}
void
agentx_config_init(void)
{
int agent_role = netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE);
/*
* Common tokens for master/subagent
*/
netsnmp_register_default_domain("agentx", "unix tcp");
netsnmp_register_default_target("agentx", "unix", NETSNMP_AGENTX_SOCKET);
#define val(x) __STRING(x)
netsnmp_register_default_target("agentx", "tcp",
"localhost:" val(AGENTX_PORT));
#undef val
agentx_register_config_handler("agentxsocket",
agentx_parse_agentx_socket, NULL,
"AgentX bind address");
#ifdef USING_AGENTX_MASTER_MODULE
/*
* tokens for master agent
*/
if (MASTER_AGENT == agent_role) {
snmpd_register_config_handler("master",
agentx_parse_master, NULL,
"specify 'agentx' for AgentX support");
agentx_register_config_handler("agentxperms",
agentx_parse_agentx_perms, NULL,
"AgentX socket permissions: socket_perms [directory_perms [username|userid [groupname|groupid]]]");
agentx_register_config_handler("agentxRetries",
agentx_parse_agentx_retries, NULL,
"AgentX Retries");
agentx_register_config_handler("agentxTimeout",
agentx_parse_agentx_timeout, NULL,
"AgentX Timeout (seconds)");
}
#endif /* USING_AGENTX_MASTER_MODULE */
#ifdef USING_AGENTX_SUBAGENT_MODULE
/*
* tokens for master agent
*/
if (SUB_AGENT == agent_role) {
/*
* set up callbacks to initiate master agent pings for this session
*/
netsnmp_ds_register_config(ASN_INTEGER,
netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE),
"agentxPingInterval",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL);
/* ping and/or reconnect by default every 15 seconds */
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_PING_INTERVAL, 15);
}
#endif /* USING_AGENTX_SUBAGENT_MODULE */
}
void
init_snmp_transport(void)
{
netsnmp_ds_register_config(ASN_BOOLEAN,
"snmp", "dontLoadHostConfig",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_LOAD_HOST_FILES);
}
void
init_notification_log(void)
{
static oid my_nlmStatsGlobalNotificationsLogged_oid[] =
{ 1, 3, 6, 1, 2, 1, 92, 1, 2, 1, 0 };
static oid my_nlmStatsGlobalNotificationsBumped_oid[] =
{ 1, 3, 6, 1, 2, 1, 92, 1, 2, 2, 0 };
static oid my_nlmConfigGlobalEntryLimit_oid[] =
{ 1, 3, 6, 1, 2, 1, 92, 1, 1, 1, 0 };
static oid my_nlmConfigGlobalAgeOut_oid[] =
{ 1, 3, 6, 1, 2, 1, 92, 1, 1, 2, 0 };
/*
* static variables
*/
netsnmp_register_read_only_counter32_instance
("nlmStatsGlobalNotificationsLogged",
my_nlmStatsGlobalNotificationsLogged_oid,
OID_LENGTH(my_nlmStatsGlobalNotificationsLogged_oid),
&num_received, NULL);
netsnmp_register_read_only_counter32_instance
("nlmStatsGlobalNotificationsBumped",
my_nlmStatsGlobalNotificationsBumped_oid,
OID_LENGTH(my_nlmStatsGlobalNotificationsBumped_oid),
&num_deleted, NULL);
netsnmp_register_ulong_instance("nlmConfigGlobalEntryLimit",
my_nlmConfigGlobalEntryLimit_oid,
OID_LENGTH
(my_nlmConfigGlobalEntryLimit_oid),
&max_logged,
notification_log_config_handler);
netsnmp_register_ulong_instance("nlmConfigGlobalAgeOut",
my_nlmConfigGlobalAgeOut_oid,
OID_LENGTH
(my_nlmConfigGlobalAgeOut_oid),
&max_age,
notification_log_config_handler);
/*
* tables
*/
initialize_table_nlmLogTable();
initialize_table_nlmLogVariableTable();
/*
* disable flag
*/
netsnmp_ds_register_config(ASN_BOOLEAN, "snmptrapd", "dontRetainLogs",
NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_APP_DONT_LOG);
}
void
init_secmod(void)
{
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_SESSION_INIT, set_default_secmod,
NULL);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defSecurityModel",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SECMODEL);
/*
* this file is generated by configure for all the stuff we're using
*/
#include "snmpsm_init.h"
}
/**
* initializes the snmptrapd authorization code registering needed
* handlers and config parsers.
*/
void
init_netsnmp_trapd_auth(void)
{
/* register our function as a authorization handler */
netsnmp_trapd_handler *traph;
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_AUTH_HANDLER,
netsnmp_trapd_auth);
traph->authtypes = TRAP_AUTH_NONE;
#ifdef USING_MIBII_VACM_CONF_MODULE
/* register our configuration tokens for VACM configs */
init_vacm_config_tokens();
#endif
/* register a config token for turning off the authorization entirely */
netsnmp_ds_register_config(ASN_BOOLEAN, "snmptrapd", "disableAuthorization",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NO_AUTHORIZATION);
}
/** Initializes the mteEventsConf module */
void
init_mteEventConf(void)
{
init_event_table_data();
/*
* Register config handlers for user-level (fixed) events....
*/
snmpd_register_config_handler("notificationEvent",
parse_notificationEvent, NULL,
"eventname notifyOID [-m] [-i OID|-o OID]*");
snmpd_register_config_handler("setEvent",
parse_setEvent, NULL,
"eventname [-I] OID = value");
netsnmp_ds_register_config(ASN_BOOLEAN,
netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE),
"strictDisman", NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_STRICT_DISMAN);
/*
* ... and for persistent storage of dynamic event table entries.
*
* (The previous implementation didn't store these entries,
* so we don't need to worry about backwards compatability)
*/
snmpd_register_config_handler("_mteETable",
parse_mteETable, NULL, NULL);
snmpd_register_config_handler("_mteENotTable",
parse_mteENotTable, NULL, NULL);
snmpd_register_config_handler("_mteESetTable",
parse_mteESetTable, NULL, NULL);
/*
* Register to save (non-fixed) entries when the agent shuts down
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
store_mteETable, NULL);
snmp_register_callback(SNMP_CALLBACK_APPLICATION,
SNMPD_CALLBACK_PRE_UPDATE_CONFIG,
clear_mteETable, NULL);
}
void
init_agent_read_config(const char *app)
{
if (app != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE, app);
} else {
app = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
}
register_app_config_handler("authtrapenable",
snmpd_parse_config_authtrap, NULL,
"1 | 2\t\t(1 = enable, 2 = disable)");
register_app_config_handler("pauthtrapenable",snmpd_parse_config_authtrap, NULL, NULL);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == MASTER_AGENT) {
#ifndef NETSNMP_DISABLE_SNMPV1
register_app_config_handler("trapsink",
snmpd_parse_config_trapsink,
snmpd_free_trapsinks,
"host [community] [port]");
#endif
#ifndef NETSNMP_DISABLE_SNMPV2C
register_app_config_handler("trap2sink",
snmpd_parse_config_trap2sink,
snmpd_free_trapsinks,
"host [community] [port]");
register_app_config_handler("informsink",
snmpd_parse_config_informsink,
snmpd_free_trapsinks,
"host [community] [port]");
#endif
register_app_config_handler("trapsess",
snmpd_parse_config_trapsess,
snmpd_free_trapsinks,
"[snmpcmdargs] host");
}
#if !defined(NETSNMP_DISABLE_SNMPV1) || !defined(NETSNMP_DISABLE_SNMPV2C)
register_app_config_handler("trapcommunity",
snmpd_parse_config_trapcommunity,
snmpd_free_trapcommunity,
"community-string");
#endif /* support for community based SNMP */
netsnmp_ds_register_config(ASN_OCTET_STR, app, "v1trapaddress",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_TRAP_ADDR);
#ifdef HAVE_UNISTD_H
register_app_config_handler("agentuser",
snmpd_set_agent_user, NULL, "userid");
register_app_config_handler("agentgroup",
snmpd_set_agent_group, NULL, "groupid");
#endif
#ifndef NETSNMP_NO_LISTEN_SUPPORT
register_app_config_handler("agentaddress",
snmpd_set_agent_address, NULL,
"SNMP bind address");
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
netsnmp_ds_register_config(ASN_BOOLEAN, app, "quit",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "leave_pidfile",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "dontLogTCPWrappersConnects",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DONT_LOG_TCPWRAPPERS_CONNECTS);
netsnmp_ds_register_config(ASN_INTEGER, app, "maxGetbulkRepeats",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_MAX_GETBULKREPEATS);
netsnmp_ds_register_config(ASN_INTEGER, app, "maxGetbulkResponses",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_MAX_GETBULKRESPONSES);
netsnmp_init_handler_conf();
#include "agent_module_dot_conf.h"
#include "mib_module_dot_conf.h"
#ifdef TESTING
print_config_handlers();
#endif
}
/** * Bulk walk snmp value to the structure my_oid_result array. * Author : lining 15810423651 [email protected] * @param peername : the remote host ip address. * @param oid_argv : the char *oid pointer. * @param my_oid_result oid_results : the return values array. * @param my_oid_result oid_results_nums : the values array numbers. * @return 0 on success, or others on failure. * @return 1 on failure, the argument error. * @return 2 on failure, snmp_open return error. * @return 3 on failure, snmp_parse_oid return error. * @return 4 on failure, snmp_synch_response return status time out. * @return 5 on failure, snmp_synch_response return status others. * @return 6 on failure, response->errstat end of mib. * @return 7 on failure, response->errstat others. */ int my_snmp_bulkwalk(const char *peername, const char *community, const char *oid_argv, my_oid_result *oid_results, unsigned int *oid_results_nums) { if(peername == NULL) { printf("[ERROR] my_snmp_walk: the peername pointer is null\n"); return 1; } if(community == NULL) { printf("[ERROR] my_snmp_walk: the community pointer is null\n"); return 1; } if(oid_argv == NULL) { printf("[ERROR] my_snmp_walk: the oid_argv pointer is null\n"); return 1; } netsnmp_session session,*ss; netsnmp_pdu *pdu, *response; netsnmp_variable_list *vars; int arg; oid name[MAX_OID_LEN]; size_t name_length; oid root[MAX_OID_LEN]; size_t rootlen; int count; int running; int status; int check; int numprinted = 0; int reps = 10, non_reps = 0; netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "includeRequested", NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_WALK_INCLUDE_REQUESTED); netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "printStatistics", NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_WALK_PRINT_STATISTICS); netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "dontCheckOrdering", NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_WALK_DONT_CHECK_LEXICOGRAPHIC); init_snmp("snmpapp"); snmp_sess_init(&session); session.version = SNMP_VERSION_2c; session.community = (char*)community; session.community_len = strlen(session.community); session.peername = (char*)peername; session.timeout = 1000000; session.retries = 1; rootlen = MAX_OID_LEN; if(snmp_parse_oid(oid_argv, root, &rootlen) == NULL) { printf("[ERROR] my_snmp_bulkwalk: call snmp_parse_oid function failed\n"); snmp_close(ss); SOCK_CLEANUP; return 2; } SOCK_STARTUP; ss = snmp_open(&session); if(ss == NULL) { printf("[ERROR] my_snmp_bulkwalk: cakk snnp_open function failed\n"); snmp_close(ss); SOCK_CLEANUP; return 3; } memmove(name, root, rootlen * sizeof(oid)); name_length = rootlen; running = 1; check = !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID, NETSNMP_DS_WALK_DONT_CHECK_LEXICOGRAPHIC); while(running) { pdu = snmp_pdu_create(SNMP_MSG_GETBULK); pdu->non_repeaters = non_reps; pdu->max_repetitions = reps; snmp_add_null_var(pdu, name, name_length); status = snmp_synch_response(ss, pdu, &response); if(status == STAT_SUCCESS) { if(response->errstat == SNMP_ERR_NOERROR) { for(vars = response->variables; vars; vars = vars->next_variable) { if((vars->name_length < rootlen) || (memcmp(root, vars->name, rootlen * sizeof(oid)) != 0)) { running = 0; continue; } get_bulkwalk_oid_values(vars, &oid_results[numprinted]); numprinted++; if((vars->type != SNMP_ENDOFMIBVIEW) && (vars->type != SNMP_NOSUCHOBJECT) && (vars->type != SNMP_NOSUCHINSTANCE)) { if(check && snmp_oid_compare(name, name_length, vars->name, vars->name_length) >= 0) { running = 0; } if(vars->next_variable == NULL) { unsigned int count; for(count = 0; count < vars->name_length; count++) { oid_results[numprinted - 1].oid_name[count] = vars->name[count]; oid_results[numprinted - 1].oid_name_length = vars->name_length; } memmove(name, vars->name, vars->name_length * sizeof(oid)); name_length = vars->name_length; } } else { running = 0; } } } else { running = 0; if(response->errstat == SNMP_ERR_NOSUCHNAME) { printf("[ERROR] my_snmp_bulkwalk: have reached the end of MIB file\n"); *oid_results_nums = numprinted; snmp_close(ss); SOCK_CLEANUP; return 6; } else { printf("[ERROR] my_snmp_bulkwalk: return response->errstat others error\n"); *oid_results_nums = numprinted; snmp_close(ss); SOCK_CLEANUP; return 7; } } } else if(status == STAT_TIMEOUT) { printf("[ERROR] my_snmp_bulkwalk: return status is session time out\n"); running = 0; *oid_results_nums = numprinted; snmp_close(ss); SOCK_CLEANUP; return 4; } else { printf("[ERROR] my_snmp_bulkwalk: return session response error\n"); running = 0; *oid_results_nums = numprinted; snmp_close(ss); SOCK_CLEANUP; return 5; } if(response) { snmp_free_pdu(response); } } *oid_results_nums = numprinted; snmp_close(ss); SOCK_CLEANUP; return 0; }
/*******************************************************************-o-******
* init_snmpv3
*
* Parameters:
* *type Label for the config file "type" used by calling entity.
*
* Set time and engineID.
* Set parsing functions for config file tokens.
* Initialize SNMP Crypto API (SCAPI).
*/
void
init_snmpv3(const char *type)
{
#if SNMP_USE_TIMES
struct tms dummy;
/* fixme: -1 is fault code... */
snmpv3startClock = times(&dummy);
/* remember how many ticks per second there are, since times() returns this */
clockticks = sysconf(_SC_CLK_TCK);
#endif /* SNMP_USE_TIMES */
gettimeofday(&snmpv3starttime, NULL);
if (!type)
type = "__snmpapp__";
/*
* we need to be called back later
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_READ_CONFIG,
init_snmpv3_post_config, NULL);
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_POST_PREMIB_READ_CONFIG,
init_snmpv3_post_premib_config, NULL);
/*
* we need to be called back later
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
snmpv3_store, (void *) strdup(type));
/*
* Free stuff at shutdown time
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY,
SNMP_CALLBACK_SHUTDOWN,
free_enginetime_on_shutdown, NULL);
/*
* initialize submodules
*/
/*
* NOTE: this must be after the callbacks are registered above,
* since they need to be called before the USM callbacks.
*/
init_secmod();
/*
* register all our configuration handlers (ack, there's a lot)
*/
/*
* handle engineID setup before everything else which may depend on it
*/
register_prenetsnmp_mib_handler(type, "engineID", engineID_conf, NULL,
"string");
register_prenetsnmp_mib_handler(type, "oldEngineID", oldengineID_conf,
NULL, NULL);
register_prenetsnmp_mib_handler(type, "engineIDType",
engineIDType_conf, NULL, "num");
register_prenetsnmp_mib_handler(type, "engineIDNic", engineIDNic_conf,
NULL, "string");
register_config_handler(type, "engineBoots", engineBoots_conf, NULL,
NULL);
/*
* default store config entries
*/
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defSecurityName",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_SECNAME);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defContext",
NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_CONTEXT);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHPASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivPassphrase",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVPASSPHRASE);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthMasterKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHMASTERKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivMasterKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVMASTERKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defAuthLocalizedKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_AUTHLOCALIZEDKEY);
netsnmp_ds_register_config(ASN_OCTET_STR, "snmp", "defPrivLocalizedKey",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_PRIVLOCALIZEDKEY);
register_config_handler("snmp", "defVersion", version_conf, NULL,
"1|2c|3");
register_config_handler("snmp", "defAuthType", snmpv3_authtype_conf,
NULL, "MD5|SHA");
register_config_handler("snmp", "defPrivType", snmpv3_privtype_conf,
NULL,
#ifdef HAVE_AES
"DES|AES");
#else
"DES (AES support not available)");
#endif
register_config_handler("snmp", "defSecurityLevel",
snmpv3_secLevel_conf, NULL,
"noAuthNoPriv|authNoPriv|authPriv");
register_config_handler(type, "userSetAuthPass", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetPrivPass", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetAuthKey", usm_set_password, NULL,
NULL);
register_config_handler(type, "userSetPrivKey", usm_set_password, NULL,
NULL);
register_config_handler(type, "userSetAuthLocalKey", usm_set_password,
NULL, NULL);
register_config_handler(type, "userSetPrivLocalKey", usm_set_password,
NULL, NULL);
}
void
init_agent_read_config(const char *app)
{
if (app != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE, app);
} else {
app = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
}
register_app_config_handler("authtrapenable",
snmpd_parse_config_authtrap, NULL,
"1 | 2\t\t(1 = enable, 2 = disable)");
register_app_config_handler("pauthtrapenable",
snmpd_parse_config_authtrap, NULL, NULL);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE) == MASTER_AGENT) {
#ifndef DISABLE_SNMPV1
register_app_config_handler("trapsink",
snmpd_parse_config_trapsink,
snmpd_free_trapsinks,
"host [community] [port]");
#endif
#ifndef DISABLE_SNMPV2C
register_app_config_handler("trap2sink",
snmpd_parse_config_trap2sink, NULL,
"host [community] [port]");
register_app_config_handler("informsink",
snmpd_parse_config_informsink, NULL,
"host [community] [port]");
#endif
register_app_config_handler("trapsess",
snmpd_parse_config_trapsess, NULL,
"[snmpcmdargs] host");
}
#if !defined(DISABLE_SNMPV1) || !defined(DISABLE_SNMPV2C)
register_app_config_handler("trapcommunity",
snmpd_parse_config_trapcommunity,
snmpd_free_trapcommunity,
"community-string");
#endif /* support for community based SNMP */
#ifdef HAVE_UNISTD_H
register_app_config_handler("agentuser",
snmpd_set_agent_user, NULL, "userid");
register_app_config_handler("agentgroup",
snmpd_set_agent_group, NULL, "groupid");
#endif
register_app_config_handler("agentaddress",
snmpd_set_agent_address, NULL,
"SNMP bind address");
netsnmp_ds_register_config(ASN_BOOLEAN, app, "quit",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "leave_pidfile",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
netsnmp_init_handler_conf();
#include "agent_module_dot_conf.h"
#include "mib_module_dot_conf.h"
#ifdef TESTING
print_config_handlers();
#endif
}
void
init_diskio(void)
{
/*
* Define a 'variable' structure that is a representation of our mib.
*/
/*
* first, we have to pick the variable type. They are all defined in
* the var_struct.h file in the agent subdirectory. I'm picking the
* variable2 structure since the longest sub-component of the oid I
* want to load is .2.1 and .2.2 so I need at most 2 spaces in the
* last entry.
*/
struct variable2 diskio_variables[] = {
{DISKIO_INDEX, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {1}},
{DISKIO_DEVICE, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {2}},
{DISKIO_NREAD, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {3}},
{DISKIO_NWRITTEN, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {4}},
{DISKIO_READS, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {5}},
{DISKIO_WRITES, ASN_COUNTER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {6}},
#if defined(HAVE_GETDEVS) || defined(HAVE_DEVSTAT_GETDEVS) || defined(linux)
{DISKIO_LA1, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {9}},
{DISKIO_LA5, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {10}},
{DISKIO_LA15, ASN_INTEGER, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {11}},
#endif
{DISKIO_NREADX, ASN_COUNTER64, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {12}},
{DISKIO_NWRITTENX, ASN_COUNTER64, NETSNMP_OLDAPI_RONLY,
var_diskio, 1, {13}},
};
/*
* Define the OID pointer to the top of the mib tree that we're
* registering underneath.
*/
oid diskio_variables_oid[] =
{ 1, 3, 6, 1, 4, 1, 2021, 13, 15, 1, 1 };
/*
* register ourselves with the agent to handle our mib tree
*
* This is a macro defined in ../../snmp_vars.h. The arguments are:
*
* descr: A short description of the mib group being loaded.
* var: The variable structure to load.
* vartype: The variable structure used to define it (variable2, variable4, ...)
* theoid: A *initialized* *exact length* oid pointer.
* (sizeof(theoid) *must* return the number of elements!)
*/
REGISTER_MIB("diskio", diskio_variables, variable2,
diskio_variables_oid);
#ifdef solaris2
kc = kstat_open();
if (kc == NULL)
snmp_log(LOG_ERR, "diskio: Couldn't open kstat\n");
#endif
#ifdef darwin
/*
* Get the I/O Kit communication handle.
*/
IOMasterPort(bootstrap_port, &masterPort);
#endif
#if defined(aix4) || defined(aix5) || defined(aix6) || defined(aix7)
/*
* initialize values to gather information on first request
*/
ps_numdisks = 0;
ps_disk = NULL;
#endif
#if defined (HAVE_GETDEVS) || defined(HAVE_DEVSTAT_GETDEVS) || defined(linux)
devla_getstats(0, NULL);
/* collect LA data regularly */
snmp_alarm_register(DISKIO_SAMPLE_INTERVAL, SA_REPEAT, devla_getstats, NULL);
#endif
#ifdef linux
char *app = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_fd",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_FD);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_loop",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_LOOP);
netsnmp_ds_register_config(ASN_BOOLEAN, app, "diskio_exclude_ram",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_DISKIO_NO_RAM);
/* or possible an exclusion pattern? */
snmp_register_callback(SNMP_CALLBACK_APPLICATION,
SNMPD_CALLBACK_PRE_UPDATE_CONFIG,
diskio_free_config, NULL);
#endif
}
int
main(int argc, char *argv[])
{
netsnmp_session session, *ss;
netsnmp_pdu *pdu, *response;
netsnmp_variable_list *vars;
int arg;
oid name[MAX_OID_LEN];
size_t name_length;
oid root[MAX_OID_LEN];
size_t rootlen;
int count;
int running;
int status;
int check;
int exitval = 0;
netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "includeRequested",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_INCLUDE_REQUESTED);
netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "printStatistics",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_PRINT_STATISTICS);
netsnmp_ds_register_config(ASN_BOOLEAN, "snmpwalk", "dontCheckOrdering",
NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_DONT_CHECK_LEXICOGRAPHIC);
/*
* get the common command line arguments
*/
switch (arg = snmp_parse_args(argc, argv, &session, "C:", optProc)) {
case NETSNMP_PARSE_ARGS_ERROR:
exit(1);
case NETSNMP_PARSE_ARGS_SUCCESS_EXIT:
exit(0);
case NETSNMP_PARSE_ARGS_ERROR_USAGE:
usage();
exit(1);
default:
break;
}
/*
* get the initial object and subtree
*/
if (arg < argc) {
/*
* specified on the command line
*/
rootlen = MAX_OID_LEN;
if (snmp_parse_oid(argv[arg], root, &rootlen) == NULL) {
snmp_perror(argv[arg]);
exit(1);
}
} else {
/*
* use default value
*/
memmove(root, objid_mib, sizeof(objid_mib));
rootlen = sizeof(objid_mib) / sizeof(oid);
}
SOCK_STARTUP;
/*
* open an SNMP session
*/
ss = snmp_open(&session);
if (ss == NULL) {
/*
* diagnose snmp_open errors with the input netsnmp_session pointer
*/
snmp_sess_perror("snmpbulkwalk", &session);
SOCK_CLEANUP;
exit(1);
}
/*
* setup initial object name
*/
memmove(name, root, rootlen * sizeof(oid));
name_length = rootlen;
running = 1;
check = !netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_DONT_CHECK_LEXICOGRAPHIC);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_INCLUDE_REQUESTED)) {
snmp_get_and_print(ss, root, rootlen);
}
while (running) {
/*
* create PDU for GETBULK request and add object name to request
*/
pdu = snmp_pdu_create(SNMP_MSG_GETBULK);
pdu->non_repeaters = non_reps;
pdu->max_repetitions = reps; /* fill the packet */
snmp_add_null_var(pdu, name, name_length);
/*
* do the request
*/
status = snmp_synch_response(ss, pdu, &response);
if (status == STAT_SUCCESS) {
if (response->errstat == SNMP_ERR_NOERROR) {
/*
* check resulting variables
*/
for (vars = response->variables; vars;
vars = vars->next_variable) {
if ((vars->name_length < rootlen)
|| (memcmp(root, vars->name, rootlen * sizeof(oid))
!= 0)) {
/*
* not part of this subtree
*/
running = 0;
continue;
}
numprinted++;
print_variable(vars->name, vars->name_length, vars);
if ((vars->type != SNMP_ENDOFMIBVIEW) &&
(vars->type != SNMP_NOSUCHOBJECT) &&
(vars->type != SNMP_NOSUCHINSTANCE)) {
/*
* not an exception value
*/
if (check
&& snmp_oid_compare(name, name_length,
vars->name,
vars->name_length) >= 0) {
fprintf(stderr, "Error: OID not increasing: ");
fprint_objid(stderr, name, name_length);
fprintf(stderr, " >= ");
fprint_objid(stderr, vars->name,
vars->name_length);
fprintf(stderr, "\n");
running = 0;
exitval = 1;
}
/*
* Check if last variable, and if so, save for next request.
*/
if (vars->next_variable == NULL) {
memmove(name, vars->name,
vars->name_length * sizeof(oid));
name_length = vars->name_length;
}
} else {
/*
* an exception value, so stop
*/
running = 0;
}
}
} else {
/*
* error in response, print it
*/
running = 0;
if (response->errstat == SNMP_ERR_NOSUCHNAME) {
printf("End of MIB\n");
} else {
fprintf(stderr, "Error in packet.\nReason: %s\n",
snmp_errstring(response->errstat));
if (response->errindex != 0) {
fprintf(stderr, "Failed object: ");
for (count = 1, vars = response->variables;
vars && count != response->errindex;
vars = vars->next_variable, count++)
/*EMPTY*/;
if (vars)
fprint_objid(stderr, vars->name,
vars->name_length);
fprintf(stderr, "\n");
}
exitval = 2;
}
}
} else if (status == STAT_TIMEOUT) {
fprintf(stderr, "Timeout: No Response from %s\n",
session.peername);
running = 0;
exitval = 1;
} else { /* status == STAT_ERROR */
snmp_sess_perror("snmpbulkwalk", ss);
running = 0;
exitval = 1;
}
if (response)
snmp_free_pdu(response);
}
if (numprinted == 0 && status == STAT_SUCCESS) {
/*
* no printed successful results, which may mean we were
* pointed at an only existing instance. Attempt a GET, just
* for get measure.
*/
snmp_get_and_print(ss, root, rootlen);
}
snmp_close(ss);
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_WALK_PRINT_STATISTICS)) {
printf("Variables found: %d\n", numprinted);
}
SOCK_CLEANUP;
return exitval;
}
int ds_register_config (u_char type, const char *ftype, const char *token, int storeid, int which)
{
return netsnmp_ds_register_config (type, ftype, token, storeid, which);
}
/*
* Locate the appropriate transport domain and call the create function for
* it.
*/
netsnmp_transport *
netsnmp_tdomain_transport_full(const char *application,
const char *str, int local,
const char *default_domain,
const char *default_target)
{
netsnmp_tdomain *match = NULL;
const char *addr = NULL;
const char * const *spec = NULL;
int any_found = 0;
char buf[SNMP_MAXPATH];
char **lspec = 0;
DEBUGMSGTL(("tdomain",
"tdomain_transport_full(\"%s\", \"%s\", %d, \"%s\", \"%s\")\n",
application, str ? str : "[NIL]", local,
default_domain ? default_domain : "[NIL]",
default_target ? default_target : "[NIL]"));
/* see if we can load a host-name specific set of conf files */
if (!netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_LOAD_HOST_FILES) &&
netsnmp_is_fqdn(str)) {
static int have_added_handler = 0;
char *newhost;
struct config_line *config_handlers;
struct config_files file_names;
char *prev_hostname;
/* register a "transport" specifier */
if (!have_added_handler) {
have_added_handler = 1;
netsnmp_ds_register_config(ASN_OCTET_STR,
"snmp", "transport",
NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_HOSTNAME);
}
/* we save on specific setting that we don't allow to change
from one transport creation to the next; ie, we don't want
the "transport" specifier to be a default. It should be a
single invocation use only */
prev_hostname = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_HOSTNAME);
if (prev_hostname)
prev_hostname = strdup(prev_hostname);
/* read in the hosts/STRING.conf files */
config_handlers = read_config_get_handlers("snmp");
snprintf(buf, sizeof(buf)-1, "hosts/%s", str);
file_names.fileHeader = buf;
file_names.start = config_handlers;
file_names.next = NULL;
DEBUGMSGTL(("tdomain", "checking for host specific config %s\n",
buf));
read_config_files_of_type(EITHER_CONFIG, &file_names);
if (NULL !=
(newhost = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_HOSTNAME))) {
strlcpy(buf, newhost, sizeof(buf));
str = buf;
}
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_HOSTNAME,
prev_hostname);
SNMP_FREE(prev_hostname);
}
/* First try - assume that there is a domain in str (domain:target) */
if (str != NULL) {
const char *cp;
if ((cp = strchr(str, ':')) != NULL) {
char* mystring = (char*)malloc(cp + 1 - str);
memcpy(mystring, str, cp - str);
mystring[cp - str] = '\0';
addr = cp + 1;
match = find_tdomain(mystring);
free(mystring);
}
}
/*
* Second try, if there is no domain in str (target), then try the
* default domain
*/
if (match == NULL) {
addr = str;
if (addr && *addr == '/') {
DEBUGMSGTL(("tdomain",
"Address starts with '/', so assume \"unix\" "
"domain\n"));
match = find_tdomain("unix");
} else if (default_domain) {
DEBUGMSGTL(("tdomain",
"Use user specified default domain \"%s\"\n",
default_domain));
if (!strchr(default_domain, ','))
match = find_tdomain(default_domain);
else {
int commas = 0;
const char *cp = default_domain;
char *dup = strdup(default_domain);
while (*++cp) if (*cp == ',') commas++;
lspec = (char **) calloc(commas+2, sizeof(char *));
commas = 1;
lspec[0] = strtok(dup, ",");
while ((lspec[commas++] = strtok(NULL, ",")))
;
spec = (const char * const *)lspec;
}
} else {
spec = netsnmp_lookup_default_domains(application);
if (spec == NULL) {
DEBUGMSGTL(("tdomain",
"No default domain found, assume \"udp\"\n"));
match = find_tdomain("udp");
} else {
const char * const * r = spec;
DEBUGMSGTL(("tdomain",
"Use application default domains"));
while(*r) {
DEBUGMSG(("tdomain", " \"%s\"", *r));
++r;
}
DEBUGMSG(("tdomain", "\n"));
}
}
}
for(;;) {
if (match) {
netsnmp_transport *t = NULL;
const char* addr2;
any_found = 1;
/*
* Ok, we know what domain to try, lets see what default data
* should be used with it
*/
if (default_target != NULL)
addr2 = default_target;
else
addr2 = netsnmp_lookup_default_target(application,
match->prefix[0]);
DEBUGMSGTL(("tdomain",
"trying domain \"%s\" address \"%s\" "
"default address \"%s\"\n",
match->prefix[0], addr ? addr : "[NIL]",
addr2 ? addr2 : "[NIL]"));
if (match->f_create_from_tstring) {
NETSNMP_LOGONCE((LOG_WARNING,
"transport domain %s uses deprecated f_create_from_tstring\n",
match->prefix[0]));
t = match->f_create_from_tstring(addr, local);
}
else
t = match->f_create_from_tstring_new(addr, local, addr2);
if (t) {
if (lspec) {
free(lspec[0]);
free(lspec);
}
return t;
}
}
addr = str;
if (spec && *spec)
match = find_tdomain(*spec++);
else
break;
}
if (!any_found)
snmp_log(LOG_ERR, "No support for any checked transport domain\n");
if (lspec) {
free(lspec[0]);
free(lspec);
}
return NULL;
}
