/*
* DisMan Event MIB:
* Implementation of the mteObjectsTable MIB interface
* See 'mteObjects.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/mteObjects.h"
#include "disman/event/mteObjectsTable.h"
netsnmp_feature_require(table_tdata)
#ifndef NETSNMP_NO_WRITE_SUPPORT
netsnmp_feature_require(check_vb_oid)
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 mteObjectsTable module */
void
init_mteObjectsTable(void)
{
static oid mteObjectsTable_oid[] = { 1, 3, 6, 1, 2, 1, 88, 1, 3, 1 };
size_t mteObjectsTable_oid_len = OID_LENGTH(mteObjectsTable_oid);
netsnmp_handler_registration *reg;
/*
* Ensure the object table container is available...
*/
init_objects_table_data();
/*
* ... then set up the MIB interface to this table
*/
#ifndef NETSNMP_NO_WRITE_SUPPORT
reg = netsnmp_create_handler_registration("mteObjectsTable",
mteObjectsTable_handler,
mteObjectsTable_oid,
mteObjectsTable_oid_len,
HANDLER_CAN_RWRITE);
#else /* !NETSNMP_NO_WRITE_SUPPORT */
reg = netsnmp_create_handler_registration("mteObjectsTable",
mteObjectsTable_handler,
mteObjectsTable_oid,
mteObjectsTable_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 */
ASN_OCTET_STR, /* index: mteObjectsName */
ASN_UNSIGNED, /* index: mteObjectsIndex */
0);
table_info->min_column = COLUMN_MTEOBJECTSID;
table_info->max_column = COLUMN_MTEOBJECTSENTRYSTATUS;
netsnmp_tdata_register(reg, objects_table_data, table_info);
}
void
shutdown_mteObjectsTable(void)
{
if (table_info) {
netsnmp_table_registration_info_free(table_info);
table_info = NULL;
}
}
/** handles requests for the mteObjectsTable table */
int
mteObjectsTable_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 mteObject *entry;
char mteOwner[MTE_STR1_LEN+1];
char mteOName[MTE_STR1_LEN+1];
long ret;
DEBUGMSGTL(("disman:event:mib", "ObjTable 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 mteObject *) netsnmp_tdata_extract_entry(request);
tinfo = netsnmp_extract_table_info(request);
if (!entry) {
netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
continue;
}
switch (tinfo->colnum) {
case COLUMN_MTEOBJECTSID:
snmp_set_var_typed_value(request->requestvb, ASN_OBJECT_ID,
(u_char *) entry->mteObjectID,
entry->mteObjectID_len*sizeof(oid));
break;
case COLUMN_MTEOBJECTSIDWILDCARD:
ret = (entry->flags & MTE_OBJECT_FLAG_WILD ) ?
TV_TRUE : TV_FALSE;
snmp_set_var_typed_integer(request->requestvb, ASN_INTEGER, ret);
break;
case COLUMN_MTEOBJECTSENTRYSTATUS:
ret = (entry->flags & MTE_OBJECT_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 mteObject *) netsnmp_tdata_extract_entry(request);
tinfo = netsnmp_extract_table_info(request);
switch (tinfo->colnum) {
case COLUMN_MTEOBJECTSID:
ret = netsnmp_check_vb_oid( request->requestvb );
if (ret != SNMP_ERR_NOERROR) {
netsnmp_set_request_error(reqinfo, request, ret);
return SNMP_ERR_NOERROR;
}
/*
* Can't modify the OID of an active row
* (an unnecessary restriction, IMO)
*/
if (entry &&
entry->flags & MTE_OBJECT_FLAG_ACTIVE ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
return SNMP_ERR_NOERROR;
}
break;
case COLUMN_MTEOBJECTSIDWILDCARD:
ret = netsnmp_check_vb_truthvalue( request->requestvb );
if (ret != SNMP_ERR_NOERROR) {
netsnmp_set_request_error(reqinfo, request, ret);
return SNMP_ERR_NOERROR;
}
/*
* Can't modify the wildcarding of an active row
* (an unnecessary restriction, IMO)
*/
if (entry &&
entry->flags & MTE_OBJECT_FLAG_ACTIVE ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE);
return SNMP_ERR_NOERROR;
}
break;
case COLUMN_MTEOBJECTSENTRYSTATUS:
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_OBJECT_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_MTEOBJECTSENTRYSTATUS:
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(mteOName, 0, sizeof(mteOName));
memcpy(mteOName,
tinfo->indexes->next_variable->val.string,
tinfo->indexes->next_variable->val_len);
ret = *tinfo->indexes->next_variable->next_variable->val.integer;
row = mteObjects_createEntry(mteOwner, mteOName, ret, 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_MTEOBJECTSENTRYSTATUS:
switch (*request->requestvb->val.integer) {
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
/*
* Tidy up after a failed row creation request
*/
entry = (struct mteObject *)
netsnmp_tdata_extract_entry(request);
if (entry &&
!(entry->flags & MTE_OBJECT_FLAG_VALID)) {
row = (netsnmp_tdata_row *)
netsnmp_tdata_extract_row(request);
mteObjects_removeEntry( row );
}
}
}
}
break;
case MODE_SET_ACTION:
for (request = requests; request; request = request->next) {
if (request->processed)
continue;
entry = (struct mteObject *) 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 mteObject *) netsnmp_tdata_extract_entry(request);
tinfo = netsnmp_extract_table_info(request);
switch (tinfo->colnum) {
case COLUMN_MTEOBJECTSID:
memset(entry->mteObjectID, 0, sizeof(entry->mteObjectID));
memcpy(entry->mteObjectID, request->requestvb->val.objid,
request->requestvb->val_len);
entry->mteObjectID_len = request->requestvb->val_len/sizeof(oid);
break;
case COLUMN_MTEOBJECTSIDWILDCARD:
if (*request->requestvb->val.integer == TV_TRUE)
entry->flags |= MTE_OBJECT_FLAG_WILD;
else
entry->flags &= ~MTE_OBJECT_FLAG_WILD;
break;
case COLUMN_MTEOBJECTSENTRYSTATUS:
switch (*request->requestvb->val.integer) {
case RS_ACTIVE:
entry->flags |= MTE_OBJECT_FLAG_ACTIVE;
break;
case RS_CREATEANDGO:
entry->flags |= MTE_OBJECT_FLAG_VALID;
entry->flags |= MTE_OBJECT_FLAG_ACTIVE;
break;
case RS_CREATEANDWAIT:
entry->flags |= MTE_OBJECT_FLAG_VALID;
break;
case RS_DESTROY:
row = (netsnmp_tdata_row *)
netsnmp_tdata_extract_row(request);
mteObjects_removeEntry(row);
}
}
}
/** set up to save persistent store */
snmp_store_needed(NULL);
break;
#endif /* !NETSNMP_NO_WRITE_SUPPORT */
}
return SNMP_ERR_NOERROR;
}