/*
* DisMan Event MIB:
* Implementation of the mteTriggerDeltaTable MIB interface
* See 'mteTrigger.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/mteTrigger.h"
#include "disman/event/mteTriggerDeltaTable.h"
netsnmp_feature_require(table_tdata)
#ifndef NETSNMP_NO_WRITE_SUPPORT
netsnmp_feature_require(check_vb_oid)
netsnmp_feature_require(check_vb_truthvalue)
#endif /* NETSNMP_NO_WRITE_SUPPORT */
/** Initializes the mteTriggerDeltaTable module */
void
init_mteTriggerDeltaTable(void)
{
static oid mteTDeltaTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 2, 3 };
size_t mteTDeltaTable_oid_len = OID_LENGTH(mteTDeltaTable_oid);
netsnmp_handler_registration *reg;
netsnmp_table_registration_info *table_info;
int rc;
/*
* Ensure the (combined) table container is available...
*/
init_trigger_table_data();
/*
* ... then set up the MIB interface to the mteTriggerDeltaTable slice
*/
#ifndef NETSNMP_NO_WRITE_SUPPORT
reg = netsnmp_create_handler_registration("mteTriggerDeltaTable",
mteTriggerDeltaTable_handler,
mteTDeltaTable_oid,
mteTDeltaTable_oid_len,
HANDLER_CAN_RWRITE);
#else /* !NETSNMP_NO_WRITE_SUPPORT */
reg = netsnmp_create_handler_registration("mteTriggerDeltaTable",
mteTriggerDeltaTable_handler,
mteTDeltaTable_oid,
mteTDeltaTable_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_MTETRIGGERDELTADISCONTINUITYID;
table_info->max_column = COLUMN_MTETRIGGERDELTADISCONTINUITYIDTYPE;
/* 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 Delta Table\n"));
}
/** handles requests for the mteTriggerDeltaTable table */
int
mteTriggerDeltaTable_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", "Delta 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 mteTriggerBooleanTable should only contains entries for
* rows where the mteTriggerSampleType is 'deltaValue(2)'
* So skip entries where this isn't the case.
*/
if (!entry || !(entry->flags & MTE_TRIGGER_FLAG_DELTA )) {
netsnmp_request_set_error(request, SNMP_NOSUCHINSTANCE);
continue;
}
switch (tinfo->colnum) {
case COLUMN_MTETRIGGERDELTADISCONTINUITYID:
snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
(u_char *) entry->mteDeltaDiscontID,
entry->mteDeltaDiscontID_len*sizeof(oid));
break;
case COLUMN_MTETRIGGERDELTADISCONTINUITYIDWILDCARD:
ret = (entry->flags & MTE_TRIGGER_FLAG_DWILD ) ?
TV_TRUE : TV_FALSE;
snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
break;
case COLUMN_MTETRIGGERDELTADISCONTINUITYIDTYPE:
snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER,
entry->mteDeltaDiscontIDType);
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 mteTriggerDeltaTable only contains entries for
* rows where mteTriggerSampleType is 'deltaValue(2)',
* strictly speaking we should reject assignments where
* this isn't the case.
* But SET requests that include an assignment of
* 'deltaValue(2)' 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 this value isn't set.
*/
switch (tinfo->colnum) {
case COLUMN_MTETRIGGERDELTADISCONTINUITYID:
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_MTETRIGGERDELTADISCONTINUITYIDWILDCARD:
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_MTETRIGGERDELTADISCONTINUITYIDTYPE:
ret = netsnmp_check_vb_int_range(request->requestvb,
MTE_DELTAD_TTICKS,
MTE_DELTAD_DATETIME);
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_MTETRIGGERDELTADISCONTINUITYID:
if ( snmp_oid_compare(
request->requestvb->val.objid,
request->requestvb->val_len/sizeof(oid),
_sysUpTime_instance, _sysUpTime_inst_len) != 0 ) {
memset(entry->mteDeltaDiscontID, 0,
sizeof(entry->mteDeltaDiscontID));
memcpy(entry->mteDeltaDiscontID,
request->requestvb->val.string,
request->requestvb->val_len);
entry->mteDeltaDiscontID_len =
request->requestvb->val_len/sizeof(oid);
entry->flags &= ~MTE_TRIGGER_FLAG_SYSUPT;
}
break;
case COLUMN_MTETRIGGERDELTADISCONTINUITYIDWILDCARD:
if (*request->requestvb->val.integer == TV_TRUE)
entry->flags |= MTE_TRIGGER_FLAG_DWILD;
else
entry->flags &= ~MTE_TRIGGER_FLAG_DWILD;
break;
case COLUMN_MTETRIGGERDELTADISCONTINUITYIDTYPE:
entry->mteDeltaDiscontIDType = *request->requestvb->val.integer;
break;
}
}
break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
}
return SNMP_ERR_NOERROR;
}