| /* |
| * DisMan Event MIB: |
| * Implementation of the mteEventTable 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-features.h> |
| #include <net-snmp/net-snmp-includes.h> |
| #include <net-snmp/agent/net-snmp-agent-includes.h> |
| #include "utilities/iquery.h" |
| #include "disman/event/mteEvent.h" |
| #include "disman/event/mteEventTable.h" |
| |
| netsnmp_feature_require(iquery) |
| netsnmp_feature_require(table_tdata) |
| #ifndef NETSNMP_NO_WRITE_SUPPORT |
| netsnmp_feature_require(iquery_pdu_session) |
| netsnmp_feature_require(check_vb_type_and_max_size) |
| netsnmp_feature_require(mteevent_removeentry) |
| netsnmp_feature_require(check_vb_truthvalue) |
| netsnmp_feature_require(table_tdata_insert_row) |
| #endif /* NETSNMP_NO_WRITE_SUPPORT */ |
| |
| static netsnmp_table_registration_info *table_info; |
| |
| /* Initializes the mteEventTable module */ |
| void |
| init_mteEventTable(void) |
| { |
| static oid mteEventTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 4, 2 }; |
| size_t mteEventTable_oid_len = OID_LENGTH(mteEventTable_oid); |
| netsnmp_handler_registration *reg; |
| |
| /* |
| * Ensure the (combined) table container is available... |
| */ |
| init_event_table_data(); |
| |
| /* |
| * ... then set up the MIB interface to the mteEventTable slice |
| */ |
| #ifndef NETSNMP_NO_WRITE_SUPPORT |
| reg = netsnmp_create_handler_registration("mteEventTable", |
| mteEventTable_handler, |
| mteEventTable_oid, |
| mteEventTable_oid_len, |
| HANDLER_CAN_RWRITE); |
| #else /* !NETSNMP_NO_WRITE_SUPPORT */ |
| reg = netsnmp_create_handler_registration("mteEventTable", |
| mteEventTable_handler, |
| mteEventTable_oid, |
| mteEventTable_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: mteEventName */ |
| ASN_PRIV_IMPLIED_OCTET_STR, |
| 0); |
| |
| table_info->min_column = COLUMN_MTEEVENTCOMMENT; |
| table_info->max_column = COLUMN_MTEEVENTENTRYSTATUS; |
| |
| /* Register this using the (common) event_table_data container */ |
| netsnmp_tdata_register(reg, event_table_data, table_info); |
| DEBUGMSGTL(("disman:event:init", "Event Table container (%p)\n", |
| event_table_data)); |
| } |
| |
| void |
| shutdown_mteEventTable(void) |
| { |
| if (table_info) { |
| netsnmp_table_registration_info_free(table_info); |
| table_info = NULL; |
| } |
| } |
| |
| /** handles requests for the mteEventTable table */ |
| int |
| mteEventTable_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; |
| netsnmp_tdata_row *row; |
| struct mteEvent *entry; |
| char mteOwner[MTE_STR1_LEN+1]; |
| char mteEName[MTE_STR1_LEN+1]; |
| long ret; |
| |
| DEBUGMSGTL(("disman:event:mib", "Event 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); |
| if (!entry || !(entry->flags & MTE_EVENT_FLAG_VALID)) |
| continue; |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTCOMMENT: |
| snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, |
| entry->mteEventComment, |
| strlen(entry->mteEventComment)); |
| break; |
| case COLUMN_MTEEVENTACTIONS: |
| snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, |
| &entry->mteEventActions, 1); |
| break; |
| case COLUMN_MTEEVENTENABLED: |
| ret = (entry->flags & MTE_EVENT_FLAG_ENABLED ) ? |
| TV_TRUE : TV_FALSE; |
| snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret); |
| break; |
| case COLUMN_MTEEVENTENTRYSTATUS: |
| ret = (entry->flags & MTE_EVENT_FLAG_ACTIVE ) ? |
| RS_ACTIVE : RS_NOTINSERVICE; |
| snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret); |
| 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 mteEvent *) netsnmp_tdata_extract_entry(request); |
| tinfo = netsnmp_extract_table_info(request); |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTCOMMENT: |
| 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; |
| } |
| /* |
| * Can't modify the comment of an active row |
| * (No good reason for this, but that's what the MIB says!) |
| */ |
| if (entry && |
| entry->flags & MTE_EVENT_FLAG_ACTIVE ) { |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_INCONSISTENTVALUE); |
| return SNMP_ERR_NOERROR; |
| } |
| break; |
| case COLUMN_MTEEVENTACTIONS: |
| 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; |
| } |
| /* |
| * Can't modify the event types of an active row |
| * (A little more understandable perhaps, |
| * but still an unnecessary restriction IMO) |
| */ |
| if (entry && |
| entry->flags & MTE_EVENT_FLAG_ACTIVE ) { |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_INCONSISTENTVALUE); |
| return SNMP_ERR_NOERROR; |
| } |
| break; |
| case COLUMN_MTEEVENTENABLED: |
| ret = netsnmp_check_vb_truthvalue(request->requestvb); |
| if (ret != SNMP_ERR_NOERROR) { |
| netsnmp_set_request_error(reqinfo, request, ret); |
| return SNMP_ERR_NOERROR; |
| } |
| /* |
| * The published version of the Event MIB forbids |
| * enabling (or disabling) an active row, which |
| * would make this object completely pointless! |
| * Fortunately this ludicrous decision has since been corrected. |
| */ |
| break; |
| |
| case COLUMN_MTEEVENTENTRYSTATUS: |
| ret = netsnmp_check_vb_rowstatus(request->requestvb, |
| (entry ? RS_ACTIVE : RS_NONEXISTENT)); |
| if (ret != SNMP_ERR_NOERROR) { |
| netsnmp_set_request_error(reqinfo, request, ret); |
| return SNMP_ERR_NOERROR; |
| } |
| /* An active row can only be deleted */ |
| if (entry && |
| entry->flags & MTE_EVENT_FLAG_ACTIVE && |
| *request->requestvb->val.integer == RS_NOTINSERVICE ) { |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_INCONSISTENTVALUE); |
| return SNMP_ERR_NOERROR; |
| } |
| break; |
| default: |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_NOTWRITABLE); |
| return SNMP_ERR_NOERROR; |
| } |
| } |
| break; |
| |
| case MODE_SET_RESERVE2: |
| for (request = requests; request; request = request->next) { |
| if (request->processed) |
| continue; |
| |
| tinfo = netsnmp_extract_table_info(request); |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTENTRYSTATUS: |
| switch (*request->requestvb->val.integer) { |
| case RS_CREATEANDGO: |
| case RS_CREATEANDWAIT: |
| /* |
| * Create an (empty) new row structure |
| */ |
| memset(mteOwner, 0, sizeof(mteOwner)); |
| memcpy(mteOwner, tinfo->indexes->val.string, |
| tinfo->indexes->val_len); |
| memset(mteEName, 0, sizeof(mteEName)); |
| memcpy(mteEName, |
| tinfo->indexes->next_variable->val.string, |
| tinfo->indexes->next_variable->val_len); |
| |
| row = mteEvent_createEntry(mteOwner, mteEName, 0); |
| if (!row) { |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_RESOURCEUNAVAILABLE); |
| return SNMP_ERR_NOERROR; |
| } |
| netsnmp_insert_tdata_row( request, row ); |
| } |
| } |
| } |
| break; |
| |
| case MODE_SET_FREE: |
| for (request = requests; request; request = request->next) { |
| if (request->processed) |
| continue; |
| |
| tinfo = netsnmp_extract_table_info(request); |
| |
| switch (tinfo->colnum) { |
| case COLUMN_MTEEVENTENTRYSTATUS: |
| switch (*request->requestvb->val.integer) { |
| case RS_CREATEANDGO: |
| case RS_CREATEANDWAIT: |
| /* |
| * Tidy up after a failed row creation request |
| */ |
| entry = (struct mteEvent *) |
| netsnmp_tdata_extract_entry(request); |
| if (entry && |
| !(entry->flags & MTE_EVENT_FLAG_VALID)) { |
| row = (netsnmp_tdata_row *) |
| netsnmp_tdata_extract_row(request); |
| mteEvent_removeEntry( row ); |
| } |
| } |
| } |
| } |
| break; |
| |
| case MODE_SET_ACTION: |
| for (request = requests; request; request = request->next) { |
| if (request->processed) |
| continue; |
| |
| tinfo = netsnmp_extract_table_info(request); |
| entry = (struct mteEvent *) netsnmp_tdata_extract_entry(request); |
| if (!entry) { |
| /* |
| * New rows must be created via the RowStatus column |
| */ |
| netsnmp_set_request_error(reqinfo, request, |
| SNMP_ERR_NOCREATION); |
| /* or inconsistentName? */ |
| return SNMP_ERR_NOERROR; |
| |
| } |
| } |
| break; |
| |
| case MODE_SET_UNDO: |
| 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_MTEEVENTCOMMENT: |
| memset(entry->mteEventComment, 0, |
| sizeof(entry->mteEventComment)); |
| memcpy(entry->mteEventComment, |
| request->requestvb->val.string, |
| request->requestvb->val_len); |
| break; |
| |
| case COLUMN_MTEEVENTACTIONS: |
| entry->mteEventActions = request->requestvb->val.string[0]; |
| break; |
| |
| case COLUMN_MTEEVENTENABLED: |
| if (*request->requestvb->val.integer == TV_TRUE) |
| entry->flags |= MTE_EVENT_FLAG_ENABLED; |
| else |
| entry->flags &= ~MTE_EVENT_FLAG_ENABLED; |
| break; |
| |
| case COLUMN_MTEEVENTENTRYSTATUS: |
| switch (*request->requestvb->val.integer) { |
| case RS_ACTIVE: |
| entry->flags |= MTE_EVENT_FLAG_ACTIVE; |
| break; |
| case RS_CREATEANDGO: |
| entry->flags |= MTE_EVENT_FLAG_ACTIVE; |
| /* fall-through */ |
| case RS_CREATEANDWAIT: |
| entry->flags |= MTE_EVENT_FLAG_VALID; |
| entry->session = |
| netsnmp_iquery_pdu_session(reqinfo->asp->pdu); |
| break; |
| |
| case RS_DESTROY: |
| row = (netsnmp_tdata_row *) |
| netsnmp_tdata_extract_row(request); |
| mteEvent_removeEntry(row); |
| } |
| } |
| } |
| break; |
| #endif /* !NETSNMP_NO_WRITE_SUPPORT */ |
| |
| } |
| DEBUGMSGTL(("disman:event:mib", "Table handler, done\n")); |
| return SNMP_ERR_NOERROR; |
| } |
