| /* |
| * DisMan Event MIB: |
| * Implementation of the mteEventNotificationTable MIB interface |
| * See 'mteEvent.c' for active behaviour of this table. |
| * |
| * (based on mib2c.table_data.conf output) |
| */ |
| |
| #include <net-snmp/net-snmp-config.h> |
| #include <net-snmp/net-snmp-includes.h> |
| #include <net-snmp/agent/net-snmp-agent-includes.h> |
| #include "disman/event/mteEvent.h" |
| #include "disman/event/mteEventNotificationTable.h" |
| |
| |
| /* Initializes the mteEventNotificationTable module */ |
| void |
| init_mteEventNotificationTable(void) |
| { |
| static oid mteEventNotificationTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 4, 3 }; |
| size_t mteEventNotificationTable_oid_len = OID_LENGTH(mteEventNotificationTable_oid); |
| netsnmp_handler_registration *reg; |
| netsnmp_table_registration_info *table_info; |
| |
| /* |
| * Ensure the (combined) table container is available... |
| */ |
| init_event_table_data(); |
| |
| /* |
| * ... then set up the MIB interface to the mteEventNotificationTable slice |
| */ |
| reg = netsnmp_create_handler_registration("mteEventNotificationTable", |
| mteEventNotificationTable_handler, |
| mteEventNotificationTable_oid, |
| mteEventNotificationTable_oid_len, |
| HANDLER_CAN_RWRITE); |
| |
| table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info); |
| netsnmp_table_helper_add_indexes(table_info, |
| ASN_OCTET_STR, /* index: mteOwner */ |
| /* index: mteEventName */ |
| ASN_PRIV_IMPLIED_OCTET_STR, |
| 0); |
| |
| table_info->min_column = COLUMN_MTEEVENTNOTIFICATION; |
| table_info->max_column = COLUMN_MTEEVENTNOTIFICATIONOBJECTS; |
| |
| /* Register this using the (common) event_table_data container */ |
| netsnmp_tdata_register(reg, event_table_data, table_info); |
| DEBUGMSGTL(("disman:event:init", "Event Notify Table container (%p)\n", |
| event_table_data)); |
| } |
| |
| |
| |
| /** handles requests for the mteEventNotificationTable table */ |
| int |
| mteEventNotificationTable_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 mteEvent *entry; |
| int ret; |
| |
| DEBUGMSGTL(("disman:event:mib", "Notification 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 mteEvent *) netsnmp_tdata_extract_entry(request); |
| tinfo = netsnmp_extract_table_info(request); |
| |
| /* |
| * The mteEventNotificationTable should only contains entries |
| * for rows where the mteEventActions 'notification(0)' bit |
| * is set. So skip entries where this isn't the case. |
| */ |
| if (!entry || !(entry->mteEventActions & MTE_EVENT_NOTIFICATION)) |
| continue; |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTNOTIFICATION: |
| snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID, |
| (u_char *) entry->mteNotification, |
| entry->mteNotification_len*sizeof(oid)); |
| break; |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTSOWNER: |
| snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, |
| (u_char *) entry->mteNotifyOwner, |
| strlen(entry->mteNotifyOwner)); |
| break; |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTS: |
| snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, |
| (u_char *) entry->mteNotifyObjects, |
| strlen(entry->mteNotifyObjects)); |
| break; |
| } |
| } |
| break; |
| |
| /* |
| * Write-support |
| */ |
| case MODE_SET_RESERVE1: |
| for (request = requests; request; request = request->next) { |
| if (request->processed) |
| continue; |
| |
| tinfo = netsnmp_extract_table_info(request); |
| |
| /* |
| * Since the mteEventNotificationTable only contains entries |
| * for rows where the mteEventActions 'notification(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 |
| * 'notification(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 'notification(0)' bit isn't set. |
| */ |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTNOTIFICATION: |
| ret = netsnmp_check_vb_oid( request->requestvb ); |
| if (ret != SNMP_ERR_NOERROR) { |
| netsnmp_set_request_error(reqinfo, request, ret); |
| return SNMP_ERR_NOERROR; |
| } |
| break; |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTSOWNER: |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTS: |
| 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 |
| * mteEventNotificationTable (and mteEventSetTable) |
| * entries can be modified once the main mteEventTable |
| * 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 mteEvent *) netsnmp_tdata_extract_entry(request); |
| if (entry && |
| entry->flags & MTE_EVENT_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 mteEvent *) netsnmp_tdata_extract_entry(request); |
| if (!entry) { |
| /* |
| * New rows must be created via the RowStatus column |
| * (in the main mteEventTable) |
| */ |
| 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 mteEvent *) netsnmp_tdata_extract_entry(request); |
| tinfo = netsnmp_extract_table_info(request); |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTNOTIFICATION: |
| memset(entry->mteNotification, 0, sizeof(entry->mteNotification)); |
| memcpy(entry->mteNotification, request->requestvb->val.objid, |
| request->requestvb->val_len); |
| entry->mteNotification_len = request->requestvb->val_len/sizeof(oid); |
| break; |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTSOWNER: |
| memset(entry->mteNotifyOwner, 0, sizeof(entry->mteNotifyOwner)); |
| memcpy(entry->mteNotifyOwner, request->requestvb->val.string, |
| request->requestvb->val_len); |
| break; |
| case COLUMN_MTEEVENTNOTIFICATIONOBJECTS: |
| memset(entry->mteNotifyObjects, 0, sizeof(entry->mteNotifyObjects)); |
| memcpy(entry->mteNotifyObjects, request->requestvb->val.string, |
| request->requestvb->val_len); |
| break; |
| } |
| } |
| break; |
| } |
| return SNMP_ERR_NOERROR; |
| } |
