/*
* 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;
}