diff options
Diffstat (limited to 'agent/mibgroup/disman/event/mteEventSetTable.c')
| -rw-r--r-- | agent/mibgroup/disman/event/mteEventSetTable.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/agent/mibgroup/disman/event/mteEventSetTable.c b/agent/mibgroup/disman/event/mteEventSetTable.c new file mode 100644 index 0000000..ee696f1 --- /dev/null +++ b/agent/mibgroup/disman/event/mteEventSetTable.c @@ -0,0 +1,310 @@ +/* + * DisMan Event MIB: + * Implementation of the mteEventSetTable 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 "disman/event/mteEvent.h" +#include "disman/event/mteEventSetTable.h" + +netsnmp_feature_require(table_tdata) +#ifndef NETSNMP_NO_WRITE_SUPPORT +netsnmp_feature_require(check_vb_type_and_max_size) +netsnmp_feature_require(check_vb_oid) +netsnmp_feature_require(check_vb_truthvalue) +#endif /* NETSNMP_NO_WRITE_SUPPORT */ + +static netsnmp_table_registration_info *table_info; + +/* Initializes the mteEventSetTable module */ +void +init_mteEventSetTable(void) +{ + static oid mteEventSetTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 4, 4 }; + size_t mteEventSetTable_oid_len = OID_LENGTH(mteEventSetTable_oid); + netsnmp_handler_registration *reg; + + /* + * Ensure the (combined) table container is available... + */ + init_event_table_data(); + + /* + * ... then set up the MIB interface to the mteEventSetTable slice + */ +#ifndef NETSNMP_NO_WRITE_SUPPORT + reg = netsnmp_create_handler_registration("mteEventSetTable", + mteEventSetTable_handler, + mteEventSetTable_oid, + mteEventSetTable_oid_len, + HANDLER_CAN_RWRITE); +#else /* !NETSNMP_NO_WRITE_SUPPORT */ + reg = netsnmp_create_handler_registration("mteEventSetTable", + mteEventSetTable_handler, + mteEventSetTable_oid, + mteEventSetTable_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_MTEEVENTSETOBJECT; + table_info->max_column = COLUMN_MTEEVENTSETCONTEXTNAMEWILDCARD; + + /* Register this using the (common) event_table_data container */ + netsnmp_tdata_register(reg, event_table_data, table_info); + DEBUGMSGTL(("disman:event:init", "Event Set Table container (%p)\n", + event_table_data)); +} + +void +shutdown_mteEventSetTable(void) +{ + if (table_info) { + netsnmp_table_registration_info_free(table_info); + table_info = NULL; + } +} + + +/** handles requests for the mteEventSetTable table */ +int +mteEventSetTable_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", "Set 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 mteEventSetTable should only contains entries for + * rows where the mteEventActions 'set(1)' bit is set. + * So skip entries where this isn't the case. + */ + if (!entry || !(entry->mteEventActions & MTE_EVENT_SET)) + continue; + + switch (tinfo->colnum) { + case COLUMN_MTEEVENTSETOBJECT: + snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID, + (u_char *) entry->mteSetOID, + entry->mteSetOID_len*sizeof(oid)); + break; + case COLUMN_MTEEVENTSETOBJECTWILDCARD: + ret = (entry->flags & MTE_SET_FLAG_OBJWILD ) ? + TV_TRUE : TV_FALSE; + snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret); + break; + case COLUMN_MTEEVENTSETVALUE: + snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, + entry->mteSetValue); + break; + case COLUMN_MTEEVENTSETTARGETTAG: + snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, + (u_char *) entry->mteSetTarget, + strlen(entry->mteSetTarget)); + break; + case COLUMN_MTEEVENTSETCONTEXTNAME: + snmp_set_var_typed_value(request->requestvb, ASN_OCTET_STR, + (u_char *) entry->mteSetContext, + strlen(entry->mteSetContext)); + break; + case COLUMN_MTEEVENTSETCONTEXTNAMEWILDCARD: + ret = (entry->flags & MTE_SET_FLAG_CTXWILD ) ? + TV_TRUE : TV_FALSE; + 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; + + tinfo = netsnmp_extract_table_info(request); + + /* + * Since the mteEventSetTable only contains entries for + * rows where the mteEventActions 'set(1)' bit is set, + * strictly speaking we should reject assignments where + * this isn't the case. + * But SET requests that include an assignment of the + * 'set(1)' 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 'set(1)' bit isn't set. + */ + switch (tinfo->colnum) { + case COLUMN_MTEEVENTSETOBJECT: + 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_MTEEVENTSETOBJECTWILDCARD: + case COLUMN_MTEEVENTSETCONTEXTNAMEWILDCARD: + ret = netsnmp_check_vb_truthvalue( request->requestvb ); + if (ret != SNMP_ERR_NOERROR) { + netsnmp_set_request_error(reqinfo, request, ret); + return SNMP_ERR_NOERROR; + } + break; + case COLUMN_MTEEVENTSETVALUE: + 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_MTEEVENTSETTARGETTAG: + case COLUMN_MTEEVENTSETCONTEXTNAME: + ret = netsnmp_check_vb_type_and_max_size( + request->requestvb, ASN_OCTET_STR, MTE_STR2_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 + * mteEventSetTable (and mteEventNotificationTable) + * 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_MTEEVENTSETOBJECT: + memset(entry->mteSetOID, 0, sizeof(entry->mteSetOID)); + memcpy(entry->mteSetOID, request->requestvb->val.objid, + request->requestvb->val_len); + entry->mteSetOID_len = request->requestvb->val_len/sizeof(oid); + break; + case COLUMN_MTEEVENTSETOBJECTWILDCARD: + if (*request->requestvb->val.integer == TV_TRUE) + entry->flags |= MTE_SET_FLAG_OBJWILD; + else + entry->flags &= ~MTE_SET_FLAG_OBJWILD; + break; + case COLUMN_MTEEVENTSETVALUE: + entry->mteSetValue = *request->requestvb->val.integer; + break; + case COLUMN_MTEEVENTSETTARGETTAG: + memset(entry->mteSetTarget, 0, sizeof(entry->mteSetTarget)); + memcpy(entry->mteSetTarget, request->requestvb->val.string, + request->requestvb->val_len); + break; + case COLUMN_MTEEVENTSETCONTEXTNAME: + memset(entry->mteSetContext, 0, sizeof(entry->mteSetContext)); + memcpy(entry->mteSetContext, request->requestvb->val.string, + request->requestvb->val_len); + break; + case COLUMN_MTEEVENTSETCONTEXTNAMEWILDCARD: + if (*request->requestvb->val.integer == TV_TRUE) + entry->flags |= MTE_SET_FLAG_CTXWILD; + else + entry->flags &= ~MTE_SET_FLAG_CTXWILD; + break; + } + } + break; +#endif /* !NETSNMP_NO_WRITE_SUPPORT */ + } + return SNMP_ERR_NOERROR; +} |