diff options
Diffstat (limited to 'agent/mibgroup/disman/event/mteEventTable.c')
-rw-r--r-- | agent/mibgroup/disman/event/mteEventTable.c | 375 |
1 files changed, 375 insertions, 0 deletions
diff --git a/agent/mibgroup/disman/event/mteEventTable.c b/agent/mibgroup/disman/event/mteEventTable.c new file mode 100644 index 0000000..c5b534e --- /dev/null +++ b/agent/mibgroup/disman/event/mteEventTable.c @@ -0,0 +1,375 @@ +/* + * 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; +} |