/* * DisMan Event MIB: * Implementation of the mteTriggerExistenceTable 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/mteTriggerExistenceTable.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 mteTriggerExistenceTable module */ void init_mteTriggerExistenceTable(void) { static oid mteTExistTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 4 }; size_t mteTExistTable_oid_len = OID_LENGTH(mteTExistTable_oid); netsnmp_handler_registration *reg; int rc; /* * Ensure the (combined) table container is available... */ init_trigger_table_data(); /* * ... then set up the MIB interface to the mteTriggerExistenceTable slice */ #ifndef NETSNMP_NO_WRITE_SUPPORT reg = netsnmp_create_handler_registration("mteTriggerExistenceTable", mteTriggerExistenceTable_handler, mteTExistTable_oid, mteTExistTable_oid_len, HANDLER_CAN_RWRITE); #else /* !NETSNMP_NO_WRITE_SUPPORT */ reg = netsnmp_create_handler_registration("mteTriggerExistenceTable", mteTriggerExistenceTable_handler, mteTExistTable_oid, mteTExistTable_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_MTETRIGGEREXISTENCETEST; table_info->max_column = COLUMN_MTETRIGGEREXISTENCEEVENT; /* Register this using the (common) trigger_table_data container */ rc = netsnmp_tdata_register(reg, trigger_table_data, table_info); if (rc != SNMPERR_SUCCESS) return; netsnmp_handler_owns_table_info(reg->handler->next); DEBUGMSGTL(("disman:event:init", "Trigger Exist Table\n")); } /** handles requests for the mteTriggerExistenceTable table */ int mteTriggerExistenceTable_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", "Exist 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 mteTriggerExistenceTable should only contains entries for * rows where the mteTriggerTest 'existence(0)' bit is set. * So skip entries where this isn't the case. */ if (!entry || !(entry->mteTriggerTest & MTE_TRIGGER_EXISTENCE )) { netsnmp_request_set_error(request, SNMP_NOSUCHINSTANCE); continue; } switch (tinfo->colnum) { case COLUMN_MTETRIGGEREXISTENCETEST: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *)&entry->mteTExTest, 1); break; case COLUMN_MTETRIGGEREXISTENCESTARTUP: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *)&entry->mteTExStartup, 1); break; case COLUMN_MTETRIGGEREXISTENCEOBJECTSOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTExObjOwner, strlen(entry->mteTExObjOwner)); break; case COLUMN_MTETRIGGEREXISTENCEOBJECTS: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTExObjects, strlen(entry->mteTExObjects)); break; case COLUMN_MTETRIGGEREXISTENCEEVENTOWNER: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTExEvOwner, strlen(entry->mteTExEvOwner)); break; case COLUMN_MTETRIGGEREXISTENCEEVENT: snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, (u_char *) entry->mteTExEvent, strlen(entry->mteTExEvent)); 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 mteTriggerExistenceTable only contains entries for * rows where the mteTriggerTest 'existence(0)' bit is set, * strictly speaking we should reject assignments where * this isn't the case. * But SET requests that include an assignment of the * 'existence(0)' 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 'existence(0)' bit isn't set. */ switch (tinfo->colnum) { case COLUMN_MTETRIGGEREXISTENCETEST: case COLUMN_MTETRIGGEREXISTENCESTARTUP: ret = netsnmp_check_vb_type_and_size( request->requestvb, ASN_OCTET_STR, 1); if (ret != SNMP_ERR_NOERROR ) { netsnmp_set_request_error(reqinfo, request, ret ); return SNMP_ERR_NOERROR; } break; case COLUMN_MTETRIGGEREXISTENCEOBJECTSOWNER: case COLUMN_MTETRIGGEREXISTENCEOBJECTS: case COLUMN_MTETRIGGEREXISTENCEEVENTOWNER: case COLUMN_MTETRIGGEREXISTENCEEVENT: 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_MTETRIGGEREXISTENCETEST: entry->mteTExTest = request->requestvb->val.string[0]; break; case COLUMN_MTETRIGGEREXISTENCESTARTUP: entry->mteTExStartup = request->requestvb->val.string[0]; break; case COLUMN_MTETRIGGEREXISTENCEOBJECTSOWNER: memset(entry->mteTExObjOwner, 0, sizeof(entry->mteTExObjOwner)); memcpy(entry->mteTExObjOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGEREXISTENCEOBJECTS: memset(entry->mteTExObjects, 0, sizeof(entry->mteTExObjects)); memcpy(entry->mteTExObjects, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGEREXISTENCEEVENTOWNER: memset(entry->mteTExEvOwner, 0, sizeof(entry->mteTExEvOwner)); memcpy(entry->mteTExEvOwner, request->requestvb->val.string, request->requestvb->val_len); break; case COLUMN_MTETRIGGEREXISTENCEEVENT: memset(entry->mteTExEvent, 0, sizeof(entry->mteTExEvent)); memcpy(entry->mteTExEvent, request->requestvb->val.string, request->requestvb->val_len); break; } } break; #endif /* !NETSNMP_NO_WRITE_SUPPORT */ } return SNMP_ERR_NOERROR; }