/* --- BEGIN COPYRIGHT BLOCK --- * This Program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; version 2 of the License. * * This Program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place, Suite 330, Boston, MA 02111-1307 USA. * * In addition, as a special exception, Red Hat, Inc. gives You the additional * right to link the code of this Program with code not covered under the GNU * General Public License ("Non-GPL Code") and to distribute linked combinations * including the two, subject to the limitations in this paragraph. Non-GPL Code * permitted under this exception must only link to the code of this Program * through those well defined interfaces identified in the file named EXCEPTION * found in the source code files (the "Approved Interfaces"). The files of * Non-GPL Code may instantiate templates or use macros or inline functions from * the Approved Interfaces without causing the resulting work to be covered by * the GNU General Public License. Only Red Hat, Inc. may make changes or * additions to the list of Approved Interfaces. You must obey the GNU General * Public License in all respects for all of the Program code and other code used * in conjunction with the Program except the Non-GPL Code covered by this * exception. If you modify this file, you may extend this exception to your * version of the file, but you are not obligated to do so. If you do not wish to * provide this exception without modification, you must delete this exception * statement from your version and license this file solely under the GPL without * exception. * * * Copyright (C) 2005 Red Hat, Inc. * All rights reserved. * --- END COPYRIGHT BLOCK --- */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include "ldap-agent.h" static netsnmp_handler_registration *ops_handler = NULL; static netsnmp_handler_registration *entries_handler = NULL; static netsnmp_handler_registration *entity_handler = NULL; static netsnmp_table_array_callbacks ops_cb; static netsnmp_table_array_callbacks entries_cb; static netsnmp_table_array_callbacks entity_cb; extern server_instance *server_head; /* Set table oids */ oid dsOpsTable_oid[] = { dsOpsTable_TABLE_OID }; size_t dsOpsTable_oid_len = OID_LENGTH(dsOpsTable_oid); oid dsEntriesTable_oid[] = { dsEntriesTable_TABLE_OID }; size_t dsEntriesTable_oid_len = OID_LENGTH(dsEntriesTable_oid); oid dsEntityTable_oid[] = {dsEntityTable_TABLE_OID }; size_t dsEntityTable_oid_len = OID_LENGTH(dsEntityTable_oid); /* Set trap oids */ oid snmptrap_oid[] = { snmptrap_OID }; size_t snmptrap_oid_len = OID_LENGTH(snmptrap_oid); oid enterprise_oid[] = { enterprise_OID }; size_t enterprise_oid_len = OID_LENGTH(enterprise_oid); /************************************************************ * init_ldap_agent * * Initializes the agent and populates the stats table * with initial data. */ void init_ldap_agent(void) { server_instance *serv_p = NULL; stats_table_context *new_row = NULL; /* Define and create the table */ initialize_stats_table(); /* Initialize data for each server in conf file */ for (serv_p = server_head; serv_p != NULL; serv_p = serv_p->next) { /* Check if this row already exists. */ if ((new_row = stats_table_find_row(serv_p->port)) == NULL) { /* Create a new row */ if ((new_row = stats_table_create_row(serv_p->port)) != NULL) { /* Set pointer for entity table */ new_row->entity_tbl = serv_p; /* Set previous state of server to unknown */ serv_p->server_state = STATE_UNKNOWN; /* Insert new row into the table */ snmp_log(LOG_DEBUG, "Inserting row for server: %d\n", serv_p->port); CONTAINER_INSERT(ops_cb.container, new_row); } else { /* error during malloc of row */ snmp_log(LOG_ERR, "Error creating row for server: %d\n", serv_p->port); } } } /* Force load data into stats table */ load_stats_table(NULL, NULL); } /************************************************************ * initialize_stats_table * * Initializes the stats table by defining its contents, * how it's structured, and registering callbacks. */ void initialize_stats_table(void) { netsnmp_table_registration_info *ops_table_info = NULL; netsnmp_table_registration_info *entries_table_info = NULL; netsnmp_table_registration_info *entity_table_info = NULL; /* This is a hacky way of figuring out if we are on Net-SNMP 5.2 or later */ #ifdef NETSNMP_CACHE_AUTO_RELOAD netsnmp_cache *stats_table_cache = NULL; #endif if (ops_handler || entries_handler || entity_handler) { snmp_log(LOG_ERR, "initialize_stats_table called more than once.\n"); return; } memset(&ops_cb, 0x00, sizeof(ops_cb)); memset(&entries_cb, 0x00, sizeof(entries_cb)); memset(&entity_cb, 0x00, sizeof(entity_cb)); /* create table structures */ ops_table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); entries_table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); entity_table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); /* create handlers */ ops_handler = netsnmp_create_handler_registration("dsOpsTable", netsnmp_table_array_helper_handler, dsOpsTable_oid, dsOpsTable_oid_len, HANDLER_CAN_RONLY); entries_handler = netsnmp_create_handler_registration("dsEntriesTable", netsnmp_table_array_helper_handler, dsEntriesTable_oid, dsEntriesTable_oid_len, HANDLER_CAN_RONLY); entity_handler = netsnmp_create_handler_registration("dsEntityTable", netsnmp_table_array_helper_handler, dsEntityTable_oid, dsEntityTable_oid_len, HANDLER_CAN_RONLY); if (!ops_handler || !entries_handler || !entity_handler || !ops_table_info || !entries_table_info || !entity_table_info) { /* malloc failed */ snmp_log(LOG_ERR, "malloc failed in initialize_stats_table\n"); return; } /* define table structures */ netsnmp_table_helper_add_index(ops_table_info, ASN_INTEGER); netsnmp_table_helper_add_index(entries_table_info, ASN_INTEGER); netsnmp_table_helper_add_index(entity_table_info, ASN_INTEGER); ops_table_info->min_column = dsOpsTable_COL_MIN; ops_table_info->max_column = dsOpsTable_COL_MAX; entries_table_info->min_column = dsEntriesTable_COL_MIN; entries_table_info->max_column = dsEntriesTable_COL_MAX; entity_table_info->min_column = dsEntityTable_COL_MIN; entity_table_info->max_column = dsEntityTable_COL_MAX; /* * Define callbacks and the container. We only use one container that * all of the tables use. */ ops_cb.get_value = dsOpsTable_get_value; ops_cb.container = netsnmp_container_find("dsOpsTable_primary:" "dsOpsTable:" "table_container"); entries_cb.get_value = dsEntriesTable_get_value; entries_cb.container = ops_cb.container; entity_cb.get_value = dsEntityTable_get_value; entity_cb.container = ops_cb.container; /* registering the tables with the master agent */ netsnmp_table_container_register(ops_handler, ops_table_info, &ops_cb, ops_cb.container, 1); netsnmp_table_container_register(entries_handler, entries_table_info, &entries_cb, entries_cb.container, 1); netsnmp_table_container_register(entity_handler, entity_table_info, &entity_cb, entity_cb.container, 1); /* Setup cache for auto reloading of stats */ #ifdef NETSNMP_CACHE_AUTO_RELOAD /* This is new api as of Net-SNMP 5.2 */ stats_table_cache = netsnmp_cache_create(CACHE_REFRESH_INTERVAL, load_stats_table, NULL, dsOpsTable_oid, dsOpsTable_oid_len); stats_table_cache->flags |= NETSNMP_CACHE_DONT_FREE_EXPIRED; stats_table_cache->flags |= NETSNMP_CACHE_DONT_AUTO_RELEASE; stats_table_cache->flags |= NETSNMP_CACHE_AUTO_RELOAD; netsnmp_inject_handler(ops_handler, netsnmp_cache_handler_get(stats_table_cache)); #else /* Do things the old way. This is only needed for Net-SNMP 5.1 and earlier. */ netsnmp_inject_handler(ops_handler, netsnmp_get_cache_handler(CACHE_REFRESH_INTERVAL, load_stats_table, free_stats_table, dsOpsTable_oid, dsOpsTable_oid_len)); #endif } /************************************************************ * stats_table_create_row * * Creates a new table row using the supplied port number as * the index, then returns a pointer to the new row. */ stats_table_context * stats_table_create_row(unsigned long portnum) { netsnmp_index index; stats_table_context *ctx = SNMP_MALLOC_TYPEDEF(stats_table_context); oid *index_oid = (oid *)malloc(sizeof(oid) * MAX_OID_LEN); /* Create index using port number */ index_oid[0] = portnum; index.oids = index_oid; index.len = 1; /* Copy index into row structure */ if (ctx && index_oid) { memcpy(&ctx->index, &index, sizeof(index)); return ctx; } else { /* Error during malloc */ snmp_log(LOG_ERR, "malloc failed in stats_table_create_row\n"); return NULL; } } /************************************************************ * stats_table_find_row * * Searches for a row by the port number. Returns NULL if * the row doesn't exist. */ stats_table_context * stats_table_find_row(unsigned long portnum) { netsnmp_index index; oid index_oid[MAX_OID_LEN]; index_oid[0] = portnum; index.oids = index_oid; index.len = 1; return (stats_table_context *) CONTAINER_FIND(ops_cb.container, &index); } /************************************************************ * load_stats_table * * Reloads the stats into the table. This is called * automatically from the cache handler. This function * does not reload the entity table since it's static * information. We also check if any traps need to * be sent here. */ int load_stats_table(netsnmp_cache *cache, void *foo) { server_instance *serv_p = NULL; stats_table_context *ctx = NULL; time_t previous_start; int previous_state; int stats_hdl = -1; snmp_log(LOG_INFO, "Reloading stats.\n"); /* Initialize data for each server in conf file */ for (serv_p = server_head; serv_p != NULL; serv_p = serv_p->next) { if ((ctx = stats_table_find_row(serv_p->port)) != NULL) { /* Save previous state of the server to * see if a trap needs to be sent */ previous_state = serv_p->server_state; previous_start = ctx->hdr_tbl.startTime; snmp_log(LOG_INFO, "Opening stats file (%s) for server: %d\n", serv_p->stats_file, serv_p->port); /* Open the stats file */ if ( agt_mopen_stats(serv_p->stats_file, O_RDONLY, &stats_hdl) != 0 ) { /* Server must be down */ serv_p->server_state = SERVER_DOWN; /* Zero out the ops and entries tables */ memset(&ctx->ops_tbl, 0x00, sizeof(ctx->ops_tbl)); memset(&ctx->entries_tbl, 0x00, sizeof(ctx->entries_tbl)); if (previous_state != SERVER_DOWN) snmp_log(LOG_INFO, "Unable to open stats file (%s) for server: %d\n", serv_p->stats_file, serv_p->port); } else { /* Initialize ops table */ if ( agt_mread_stats(stats_hdl, &ctx->hdr_tbl, &ctx->ops_tbl, &ctx->entries_tbl) != 0 ) snmp_log(LOG_ERR, "Unable to read stats file: %s\n", serv_p->stats_file); /* Close stats file */ if ( agt_mclose_stats(stats_hdl) != 0 ) snmp_log(LOG_ERR, "Error closing stats file: %s\n", serv_p->stats_file); /* Server must be down if the stats file hasn't been * updated in a while */ if (difftime(time(NULL), ctx->hdr_tbl.updateTime) >= UPDATE_THRESHOLD) { serv_p->server_state = SERVER_DOWN; if (previous_state != SERVER_DOWN) snmp_log(LOG_INFO, "Stats file for server %d hasn't been updated" " in %d seconds.\n", serv_p->port, UPDATE_THRESHOLD); } else { serv_p->server_state = SERVER_UP; } } /* If the state of the server changed since the last * load of the stats, send a trap. */ if (previous_state != STATE_UNKNOWN) { if (serv_p->server_state != previous_state) { if (serv_p->server_state == SERVER_UP) { snmp_log(LOG_INFO, "Detected start of server: %d\n", serv_p->port); send_DirectoryServerStart_trap(serv_p); } else { send_DirectoryServerDown_trap(serv_p); /* Zero out the ops and entries tables */ memset(&ctx->ops_tbl, 0x00, sizeof(ctx->ops_tbl)); memset(&ctx->entries_tbl, 0x00, sizeof(ctx->entries_tbl)); } } else if (ctx->hdr_tbl.startTime != previous_start) { /* Send traps if the server has restarted since the last load */ snmp_log(LOG_INFO, "Detected restart of server: %d\n", serv_p->port); send_DirectoryServerDown_trap(serv_p); send_DirectoryServerStart_trap(serv_p); } } } else { /* Can't find our row. This shouldn't ever happen. */ snmp_log(LOG_ERR, "Row not found for server: %d\n", serv_p->port); } } return 0; } /************************************************************ * free_stats_table * * This function doesn't need to free anything since the * load_stats_table function doesn't allocate any memory * itself. The cache handler requires us to have a callback * function for freeing the cache, so here it is. */ void free_stats_table(netsnmp_cache *cache, void *foo) { return; } /************************************************************ * dsOpsTable_get_value * * This routine is called for get requests to copy the data * from the context to the varbind for the request. If the * context has been properly maintained, you don't need to * change in code in this fuction. */ int dsOpsTable_get_value(netsnmp_request_info *request, netsnmp_index * item, netsnmp_table_request_info *table_info) { netsnmp_variable_list *var = request->requestvb; stats_table_context *context = (stats_table_context *) item; switch (table_info->colnum) { case COLUMN_DSANONYMOUSBINDS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsAnonymousBinds, sizeof(context->ops_tbl.dsAnonymousBinds)); break; case COLUMN_DSUNAUTHBINDS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsUnAuthBinds, sizeof(context->ops_tbl.dsUnAuthBinds)); break; case COLUMN_DSSIMPLEAUTHBINDS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsSimpleAuthBinds, sizeof(context->ops_tbl.dsSimpleAuthBinds)); break; case COLUMN_DSSTRONGAUTHBINDS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsStrongAuthBinds, sizeof(context->ops_tbl.dsStrongAuthBinds)); break; case COLUMN_DSBINDSECURITYERRORS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsBindSecurityErrors, sizeof(context->ops_tbl.dsBindSecurityErrors)); break; case COLUMN_DSINOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsInOps, sizeof(context->ops_tbl.dsInOps)); break; case COLUMN_DSREADOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsReadOps, sizeof(context->ops_tbl.dsReadOps)); break; case COLUMN_DSCOMPAREOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsCompareOps, sizeof(context->ops_tbl.dsCompareOps)); break; case COLUMN_DSADDENTRYOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsAddEntryOps, sizeof(context->ops_tbl.dsAddEntryOps)); break; case COLUMN_DSREMOVEENTRYOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsRemoveEntryOps, sizeof(context->ops_tbl.dsRemoveEntryOps)); break; case COLUMN_DSMODIFYENTRYOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsModifyEntryOps, sizeof(context->ops_tbl.dsModifyEntryOps)); break; case COLUMN_DSMODIFYRDNOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsModifyRDNOps, sizeof(context->ops_tbl.dsModifyRDNOps)); break; case COLUMN_DSLISTOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsListOps, sizeof(context->ops_tbl.dsListOps)); break; case COLUMN_DSSEARCHOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsSearchOps, sizeof(context->ops_tbl.dsSearchOps)); break; case COLUMN_DSONELEVELSEARCHOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsOneLevelSearchOps, sizeof(context->ops_tbl.dsOneLevelSearchOps)); break; case COLUMN_DSWHOLESUBTREESEARCHOPS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsWholeSubtreeSearchOps, sizeof(context->ops_tbl.dsWholeSubtreeSearchOps)); break; case COLUMN_DSREFERRALS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsReferrals, sizeof(context->ops_tbl.dsReferrals)); break; case COLUMN_DSCHAININGS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsChainings, sizeof(context->ops_tbl.dsChainings)); break; case COLUMN_DSSECURITYERRORS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsSecurityErrors, sizeof(context->ops_tbl.dsSecurityErrors)); break; case COLUMN_DSERRORS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->ops_tbl.dsErrors, sizeof(context->ops_tbl.dsErrors)); break; default:/* We shouldn't get here */ snmp_log(LOG_ERR, "Unknown column in dsOpsTable_get_value\n"); return SNMP_ERR_GENERR; } return SNMP_ERR_NOERROR; } /************************************************************ * dsEntriesTable_get_value * * This routine is called for get requests to copy the data * from the context to the varbind for the request. If the * context has been properly maintained, you don't need to * change in code in this fuction. */ int dsEntriesTable_get_value(netsnmp_request_info *request, netsnmp_index * item, netsnmp_table_request_info *table_info) { netsnmp_variable_list *var = request->requestvb; stats_table_context *context = (stats_table_context *) item; switch (table_info->colnum) { case COLUMN_DSMASTERENTRIES: snmp_set_var_typed_value(var, ASN_GAUGE, (u_char *) &context->entries_tbl.dsMasterEntries, sizeof(context->entries_tbl.dsMasterEntries)); break; case COLUMN_DSCOPYENTRIES: snmp_set_var_typed_value(var, ASN_GAUGE, (u_char *) &context->entries_tbl.dsCopyEntries, sizeof(context->entries_tbl.dsCopyEntries)); break; case COLUMN_DSCACHEENTRIES: snmp_set_var_typed_value(var, ASN_GAUGE, (u_char *) &context->entries_tbl.dsCacheEntries, sizeof(context->entries_tbl.dsCacheEntries)); break; case COLUMN_DSCACHEHITS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->entries_tbl.dsCacheHits, sizeof(context->entries_tbl.dsCacheHits)); break; case COLUMN_DSSLAVEHITS: snmp_set_var_typed_value(var, ASN_COUNTER, (u_char *) &context->entries_tbl.dsSlaveHits, sizeof(context->entries_tbl.dsSlaveHits)); break; default:/* We shouldn't get here */ snmp_log(LOG_ERR, "Unknown column in dsEntriesTable_get_value\n"); return SNMP_ERR_GENERR; } return SNMP_ERR_NOERROR; } /************************************************************ * dsEntityTable_get_value * * This routine is called for get requests to copy the data * from the context to the varbind for the request. If the * context has been properly maintained, you don't need to * change in code in this fuction. */ int dsEntityTable_get_value(netsnmp_request_info *request, netsnmp_index * item, netsnmp_table_request_info *table_info) { netsnmp_variable_list *var = request->requestvb; stats_table_context *context = (stats_table_context *) item; switch (table_info->colnum) { case COLUMN_DSENTITYDESCR: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsDescription, strlen(context->hdr_tbl.dsDescription)); break; case COLUMN_DSENTITYVERS: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsVersion, strlen(context->hdr_tbl.dsVersion)); break; case COLUMN_DSENTITYORG: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsOrganization, strlen(context->hdr_tbl.dsOrganization)); break; case COLUMN_DSENTITYLOCATION: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsLocation, strlen(context->hdr_tbl.dsLocation)); break; case COLUMN_DSENTITYCONTACT: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsContact, strlen(context->hdr_tbl.dsContact)); break; case COLUMN_DSENTITYNAME: snmp_set_var_typed_value(var, ASN_OCTET_STR, (u_char *) context->hdr_tbl.dsName, strlen(context->hdr_tbl.dsName)); break; default:/* We shouldn't get here */ snmp_log(LOG_ERR, "Unknown column in dsEntityTable_get_value\n"); return SNMP_ERR_GENERR; } return SNMP_ERR_NOERROR; } /************************************************************ * send_DirectoryServerDown_trap * * Sends off the server down trap. */ int send_DirectoryServerDown_trap(server_instance *serv_p) { netsnmp_variable_list *var_list = NULL; stats_table_context *ctx = NULL; /* Define the oids for the trap */ oid DirectoryServerDown_oid[] = { DirectoryServerDown_OID }; oid dsEntityDescr_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYDESCR, 0 }; oid dsEntityVers_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYVERS, 0 }; oid dsEntityLocation_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYLOCATION, 0 }; oid dsEntityContact_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYCONTACT, 0 }; dsEntityDescr_oid[3] = serv_p->port; dsEntityVers_oid[3] = serv_p->port; dsEntityLocation_oid[3] = serv_p->port; dsEntityContact_oid[3] = serv_p->port; snmp_log(LOG_INFO, "Sending down trap for server: %d\n", serv_p->port); /* Lookup row to get version string */ if ((ctx = stats_table_find_row(serv_p->port)) == NULL) { snmp_log(LOG_ERR, "Malloc error finding row for server: %d\n", serv_p->port); return 1; } /* Setup the variable list to send with the trap */ snmp_varlist_add_variable(&var_list, snmptrap_oid, OID_LENGTH(snmptrap_oid), ASN_OBJECT_ID, (u_char *) &DirectoryServerDown_oid, sizeof(DirectoryServerDown_oid)); snmp_varlist_add_variable(&var_list, dsEntityDescr_oid, OID_LENGTH(dsEntityDescr_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsDescription, strlen(ctx->hdr_tbl.dsDescription)); snmp_varlist_add_variable(&var_list, dsEntityVers_oid, OID_LENGTH(dsEntityVers_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsVersion, strlen(ctx->hdr_tbl.dsVersion)); snmp_varlist_add_variable(&var_list, dsEntityLocation_oid, OID_LENGTH(dsEntityLocation_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsLocation, strlen(ctx->hdr_tbl.dsLocation)); snmp_varlist_add_variable(&var_list, dsEntityContact_oid, OID_LENGTH(dsEntityContact_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsContact, strlen(ctx->hdr_tbl.dsContact)); /* Send the trap */ send_v2trap(var_list); snmp_free_varbind(var_list); return SNMP_ERR_NOERROR; } /************************************************************ * send_DirectoryServerStart_trap * * Sends off the server start trap. */ int send_DirectoryServerStart_trap(server_instance *serv_p) { netsnmp_variable_list *var_list = NULL; stats_table_context *ctx = NULL; /* Define the oids for the trap */ oid DirectoryServerStart_oid[] = { DirectoryServerStart_OID }; oid dsEntityDescr_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYDESCR, 0 }; oid dsEntityVers_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYVERS, 0 }; oid dsEntityLocation_oid[] = { dsEntityTable_TABLE_OID, 1, COLUMN_DSENTITYLOCATION, 0 }; dsEntityDescr_oid[3] = serv_p->port; dsEntityVers_oid[3] = serv_p->port; dsEntityLocation_oid[3] = serv_p->port; snmp_log(LOG_INFO, "Sending start trap for server: %d\n", serv_p->port); /* Lookup row to get version string */ if ((ctx = stats_table_find_row(serv_p->port)) == NULL) { snmp_log(LOG_ERR, "Malloc error finding row for server: %d\n", serv_p->port); return 1; } /* Setup the variable list to send with the trap */ snmp_varlist_add_variable(&var_list, snmptrap_oid, OID_LENGTH(snmptrap_oid), ASN_OBJECT_ID, (u_char *) &DirectoryServerStart_oid, sizeof(DirectoryServerStart_oid)); snmp_varlist_add_variable(&var_list, dsEntityDescr_oid, OID_LENGTH(dsEntityDescr_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsDescription, strlen(ctx->hdr_tbl.dsDescription)); snmp_varlist_add_variable(&var_list, dsEntityVers_oid, OID_LENGTH(dsEntityVers_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsVersion, strlen(ctx->hdr_tbl.dsVersion)); snmp_varlist_add_variable(&var_list, dsEntityLocation_oid, OID_LENGTH(dsEntityLocation_oid), ASN_OCTET_STR, (u_char *) ctx->hdr_tbl.dsLocation, strlen(ctx->hdr_tbl.dsLocation)); /* Send the trap */ send_v2trap(var_list); snmp_free_varbind(var_list); return SNMP_ERR_NOERROR; }