/* * DisMan Event MIB: * Implementation of the mteTriggerThresholdTable MIB interface * See 'mteTrigger.c' for active behaviour of this table. * * (based on mib2c.table_data.conf output) */ #include #include #include #include #include "disman/event/mteTrigger.h" #include "disman/event/mteTriggerThresholdTable.h" netsnmp_feature_require(table_tdata); #ifndef NETSNMP_NO_WRITE_SUPPORT netsnmp_feature_require(check_vb_type_and_max_size); #endif /* NETSNMP_NO_WRITE_SUPPORT */ static netsnmp_table_registration_info *table_info; /** Initializes the mteTriggerThresholdTable module */ void init_mteTriggerThresholdTable(void) { static oid mteTThreshTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 6 }; size_t mteTThreshTable_oid_len = OID_LENGTH(mteTThreshTable_oid); netsnmp_handler_registration *reg; /* * Ensure the (combined) table container is available... */ init_trigger_table_data(); /* * ... then set up the MIB interface to the mteTriggerThresholdTable slice */ #ifndef NETSNMP_NO_WRITE_SUPPORT reg = netsnmp_create_handler_registration("mteTriggerThresholdTable", mteTriggerThresholdTable_handler, mteTThreshTable_oid, mteTThreshTable_oid_len, HANDLER_CAN_RWRITE); #else /* !NETSNMP_NO_WRITE_SUPPORT */ reg = netsnmp_create_handler_registration("mteTriggerThresholdTable", mteTriggerThresholdTable_handler, mteTThreshTable_oid, mteTThreshTable_oid_len, HANDLER_CAN_RONLY); #endif /* !NETSNMP_NO_WRITE_SUPPORT */ table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); netsnmp_table_helper_add_indexes(table_info, ASN_OCTET_STR, /* index: mteOwner */ /* index: mteTriggerName */ ASN_PRIV_IMPLIED_OCTET_STR, 0); table_info->min_column = COLUMN_MTETRIGGERTHRESHOLDSTARTUP; table_info->max_column = COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT; /* Register this using the (common) trigger_table_data container */ netsnmp_tdata_register(reg, trigger_table_data, table_info); DEBUGMSGTL(("disman:event:init", "Trigger Threshold Table\n")); } void shutdown_mteTriggerThresholdTable(void) { if (table_info) { netsnmp_table_registration_info_free(table_info); table_info = NULL; } } /** handles requests for the mteTriggerThresholdTable table */ int mteTriggerThresholdTable_handler(netsnmp_mib_handler *handler, netsnmp_handler_registration *reginfo, netsnmp_agent_request_info *reqinfo, netsnmp_request_info *requests) { netsnmp_request_info *request; netsnmp_table_request_info *tinfo; struct mteTrigger *entry; int ret; DEBUGMSGTL(("disman:event:mib", "Threshold Table handler (%d)\n", reqinfo->mode)); switch (reqinfo->mode) { /* * Read-support (also covers GetNext requests) */ case MODE_GET: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); /* * The mteTriggerThresholdTable should only contains entries for * rows where the mteTriggerTest 'threshold(2)' bit is set. * So skip entries where this isn't the case. */ if (!entry || !(entry->mteTriggerTest & MTE_TRIGGER_THRESHOLD )) { netsnmp_request_set_error(request, SNMP_NOSUCHINSTANCE); continue; } switch (tinfo->colnum) { case COLUMN_MTETRIGGERTHRESHOLDSTARTUP: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTThStartup); break; case COLUMN_MTETRIGGERTHRESHOLDRISING: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTThRiseValue); break; case COLUMN_MTETRIGGERTHRESHOLDFALLING: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTThFallValue); break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISING: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTThDRiseValue); break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLING: snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, entry->mteTThDFallValue); break; case COLUMN_MTETRIGGERTHRESHOLDOBJECTSOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThObjOwner, strlen(entry->mteTThObjOwner)); break; case COLUMN_MTETRIGGERTHRESHOLDOBJECTS: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThObjects, strlen(entry->mteTThObjects)); break; case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThRiseOwner, strlen(entry->mteTThRiseOwner)); break; case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThRiseEvent, strlen(entry->mteTThRiseEvent)); break; case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThFallOwner, strlen(entry->mteTThFallOwner)); break; case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThFallEvent, strlen(entry->mteTThFallEvent)); break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThDRiseOwner, strlen(entry->mteTThDRiseOwner)); break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThDRiseEvent, strlen(entry->mteTThDRiseEvent)); break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThDFallOwner, strlen(entry->mteTThDFallOwner)); break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTThDFallEvent, strlen(entry->mteTThDFallEvent)); break; } } break; #ifndef NETSNMP_NO_WRITE_SUPPORT /* * Write-support */ case MODE_SET_RESERVE1: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); /* * Since the mteTriggerThresholdTable only contains entries for * rows where the mteTriggerTest 'threshold(2)' bit is set, * strictly speaking we should reject assignments where * this isn't the case. * But SET requests that include an assignment of the * 'threshold(2)' bit at the same time are valid, so would * need to be accepted. Unfortunately, this assignment * is only applied in the COMMIT pass, so it's difficult * to detect whether this holds or not. * * Let's fudge things for now, by processing assignments * even if the 'threshold(2)' bit isn't set. */ switch (tinfo->colnum) { case COLUMN_MTETRIGGERTHRESHOLDSTARTUP: ret = netsnmp_check_vb_int_range(request->requestvb, MTE_THRESH_START_RISE, MTE_THRESH_START_RISEFALL ); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGERTHRESHOLDRISING: case COLUMN_MTETRIGGERTHRESHOLDFALLING: case COLUMN_MTETRIGGERTHRESHOLDDELTARISING: case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLING: ret = netsnmp_check_vb_int(request->requestvb); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGERTHRESHOLDOBJECTSOWNER: case COLUMN_MTETRIGGERTHRESHOLDOBJECTS: case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENTOWNER: case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENT: case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENTOWNER: case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENT: case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENTOWNER: case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENT: case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENTOWNER: case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT: ret = netsnmp_check_vb_type_and_max_size( request->requestvb, ASN_OCTET_STR, MTE_STR1_LEN); if (ret != SNMP_ERR_NOERROR) { netsnmp_set_request_error(reqinfo, request, ret); return SNMP_ERR_NOERROR; } break; default: netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOTWRITABLE); return SNMP_ERR_NOERROR; } /* * The Event MIB is somewhat ambiguous as to whether the * various trigger table entries can be modified once the * main mteTriggerTable entry has been marked 'active'. * But it's clear from discussion on the DisMan mailing * list is that the intention is not. * * So check for whether this row is already active, * and reject *all* SET requests if it is. */ entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); if (entry && entry->flags & MTE_TRIGGER_FLAG_ACTIVE ) { netsnmp_set_request_error(reqinfo, request, SNMP_ERR_INCONSISTENTVALUE); return SNMP_ERR_NOERROR; } } break; case MODE_SET_RESERVE2: case MODE_SET_FREE: case MODE_SET_UNDO: break; case MODE_SET_ACTION: for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); if (!entry) { /* * New rows must be created via the RowStatus column * (in the main mteTriggerTable) */ netsnmp_set_request_error(reqinfo, request, SNMP_ERR_NOCREATION); /* or inconsistentName? */ return SNMP_ERR_NOERROR; } } break; case MODE_SET_COMMIT: /* * All these assignments are "unfailable", so it's * (reasonably) safe to apply them in the Commit phase */ for (request = requests; request; request = request->next) { if (request->processed) continue; entry = (struct mteTrigger *) netsnmp_tdata_extract_entry(request); tinfo = netsnmp_extract_table_info(request); switch (tinfo->colnum) { case COLUMN_MTETRIGGERTHRESHOLDSTARTUP: entry->mteTThStartup = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERTHRESHOLDRISING: entry->mteTThRiseValue = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERTHRESHOLDFALLING: entry->mteTThFallValue = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISING: entry->mteTThDRiseValue = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLING: entry->mteTThDFallValue = *request->requestvb->val.integer; break; case COLUMN_MTETRIGGERTHRESHOLDOBJECTSOWNER: memset(entry->mteTThObjOwner, 0, sizeof(entry->mteTThObjOwner)); memcpy(entry->mteTThObjOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDOBJECTS: memset(entry->mteTThObjects, 0, sizeof(entry->mteTThObjects)); memcpy(entry->mteTThObjects, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENTOWNER: memset(entry->mteTThRiseOwner, 0, sizeof(entry->mteTThRiseOwner)); memcpy(entry->mteTThRiseOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDRISINGEVENT: memset(entry->mteTThRiseEvent, 0, sizeof(entry->mteTThRiseEvent)); memcpy(entry->mteTThRiseEvent, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENTOWNER: memset(entry->mteTThFallOwner, 0, sizeof(entry->mteTThFallOwner)); memcpy(entry->mteTThFallOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDFALLINGEVENT: memset(entry->mteTThFallEvent, 0, sizeof(entry->mteTThFallEvent)); memcpy(entry->mteTThFallEvent, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENTOWNER: memset(entry->mteTThDRiseOwner, 0, sizeof(entry->mteTThDRiseOwner)); memcpy(entry->mteTThDRiseOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDDELTARISINGEVENT: memset(entry->mteTThDRiseEvent, 0, sizeof(entry->mteTThDRiseEvent)); memcpy(entry->mteTThDRiseEvent, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENTOWNER: memset(entry->mteTThDFallOwner, 0, sizeof(entry->mteTThDFallOwner)); memcpy(entry->mteTThDFallOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGERTHRESHOLDDELTAFALLINGEVENT: memset(entry->mteTThDFallEvent, 0, sizeof(entry->mteTThDFallEvent)); memcpy(entry->mteTThDFallEvent, request->requestvb->val.string, request->requestvb->val_len); break; } } break; #endif /* !NETSNMP_NO_WRITE_SUPPORT */ } return SNMP_ERR_NOERROR; }