static BOOL mib2IpStatsQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier myOid = DEFINE_OID(mib2Ip);
UINT item = 0;
BOOL ret = TRUE;
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
*pErrorStatus = getItemFromOid(&pVarBind->name, &myOid, bPduType,
&item);
if (!*pErrorStatus)
{
*pErrorStatus = mapStructEntryToValue(mib2IpMap,
DEFINE_SIZEOF(mib2IpMap), &ipStats, item, pVarBind);
if (!*pErrorStatus && bPduType == SNMP_PDU_GETNEXT)
ret = setOidWithItem(&pVarBind->name, &myOid, item);
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
static BOOL mib2UdpEntryQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier myOid = DEFINE_OID(mib2UdpEntry);
BOOL ret = TRUE;
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
if (!udpTable)
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
else
{
UINT tableIndex = 0, item = 0;
*pErrorStatus = getItemAndInstanceFromTable(&pVarBind->name, &myOid,
5, bPduType, (struct GenericTable *)udpTable,
sizeof(MIB_UDPROW), oidToUdpRow, compareUdpRow, &item,
&tableIndex);
if (!*pErrorStatus)
{
assert(tableIndex);
assert(item);
*pErrorStatus = mapStructEntryToValue(mib2UdpEntryMap,
DEFINE_SIZEOF(mib2UdpEntryMap),
&udpTable->table[tableIndex - 1], item, pVarBind);
if (!*pErrorStatus && bPduType == SNMP_PDU_GETNEXT)
{
AsnObjectIdentifier oid;
ret = setOidWithItemAndIpAddr(&pVarBind->name, &myOid, item,
udpTable->table[tableIndex - 1].dwLocalAddr);
if (ret)
{
oid.idLength = 1;
oid.ids = &udpTable->table[tableIndex - 1].dwLocalPort;
ret = SnmpUtilOidAppend(&pVarBind->name, &oid);
}
}
}
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
static BOOL mib2IfEntryQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier entryOid = DEFINE_OID(mib2IfEntry);
BOOL ret = TRUE;
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
if (!ifTable)
{
/* There is no interface present, so let the caller deal
* with finding the successor.
*/
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
else
{
UINT tableIndex = 0, item = 0;
*pErrorStatus = getItemAndIntegerInstanceFromOid(&pVarBind->name,
&entryOid, bPduType, &item, &tableIndex);
if (!*pErrorStatus)
{
assert(tableIndex);
assert(item);
if (tableIndex > ifTable->dwNumEntries)
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
else
{
*pErrorStatus = mapStructEntryToValue(mib2IfEntryMap,
DEFINE_SIZEOF(mib2IfEntryMap),
&ifTable->table[tableIndex - 1], item,
pVarBind);
if (bPduType == SNMP_PDU_GETNEXT)
ret = setOidWithItemAndInteger(&pVarBind->name,
&entryOid, item, tableIndex);
}
}
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
static BOOL mib2IpNetQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier myOid = DEFINE_OID(mib2IpNet);
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
if (!ipNetTable)
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
else
{
UINT tableIndex = 0, item = 0;
*pErrorStatus = getItemAndIntegerInstanceFromOid(&pVarBind->name,
&myOid, bPduType, &item, &tableIndex);
if (!*pErrorStatus)
{
assert(tableIndex);
assert(item);
if (tableIndex > ipNetTable->dwNumEntries)
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
else
{
*pErrorStatus = mapStructEntryToValue(mib2IpNetMap,
DEFINE_SIZEOF(mib2IpNetMap),
&ipNetTable[tableIndex - 1], item, bPduType, pVarBind);
if (!*pErrorStatus && bPduType == SNMP_PDU_GETNEXT)
setOidWithItemAndInteger(&pVarBind->name, &myOid, item,
tableIndex);
}
}
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return TRUE;
}
static BOOL mib2IfNumberQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier numberOid = DEFINE_OID(mib2IfNumber);
BOOL ret = TRUE;
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
if ((bPduType == SNMP_PDU_GET &&
!SnmpUtilOidNCmp(&pVarBind->name, &numberOid, numberOid.idLength))
|| SnmpUtilOidNCmp(&pVarBind->name, &numberOid, numberOid.idLength)
< 0)
{
DWORD numIfs = ifTable ? ifTable->dwNumEntries : 0;
copyInt(&pVarBind->value, &numIfs);
if (bPduType == SNMP_PDU_GETNEXT)
{
SnmpUtilOidFree(&pVarBind->name);
SnmpUtilOidCpy(&pVarBind->name, &numberOid);
}
*pErrorStatus = SNMP_ERRORSTATUS_NOERROR;
}
else
{
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
/* Caller deals with OID if bPduType == SNMP_PDU_GETNEXT, so don't
* need to set it here.
*/
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
/*****************************************************************************
* SnmpExtensionInit [INETMIB1.@]
*/
BOOL WINAPI SnmpExtensionInit(DWORD dwUptimeReference,
HANDLE *phSubagentTrapEvent, AsnObjectIdentifier *pFirstSupportedRegion)
{
AsnObjectIdentifier myOid = DEFINE_OID(mib2System);
UINT i;
TRACE("(%d, %p, %p)\n", dwUptimeReference, phSubagentTrapEvent,
pFirstSupportedRegion);
minSupportedIDLength = UINT_MAX;
for (i = 0; i < sizeof(supportedIDs) / sizeof(supportedIDs[0]); i++)
{
if (supportedIDs[i].init)
supportedIDs[i].init();
if (supportedIDs[i].name.idLength < minSupportedIDLength)
minSupportedIDLength = supportedIDs[i].name.idLength;
}
*phSubagentTrapEvent = NULL;
SnmpUtilOidCpy(pFirstSupportedRegion, &myOid);
return TRUE;
}
static BOOL mib2IpRouteQuery(BYTE bPduType, SnmpVarBind *pVarBind,
AsnInteger32 *pErrorStatus)
{
AsnObjectIdentifier myOid = DEFINE_OID(mib2IpRoute);
UINT tableIndex = 0, item = 0;
BOOL ret = TRUE;
TRACE("(0x%02x, %s, %p)\n", bPduType, SnmpUtilOidToA(&pVarBind->name),
pErrorStatus);
switch (bPduType)
{
case SNMP_PDU_GET:
case SNMP_PDU_GETNEXT:
*pErrorStatus = getItemAndInstanceFromTable(&pVarBind->name,
&myOid, 4, bPduType, (struct GenericTable *)ipRouteTable,
sizeof(MIB_IPFORWARDROW), oidToIpForwardRow, compareIpForwardRow,
&item, &tableIndex);
if (!*pErrorStatus)
{
assert(tableIndex);
assert(item);
*pErrorStatus = mapStructEntryToValue(mib2IpRouteMap,
DEFINE_SIZEOF(mib2IpRouteMap),
&ipRouteTable->table[tableIndex - 1], item, pVarBind);
if (!*pErrorStatus && bPduType == SNMP_PDU_GETNEXT)
ret = setOidWithItemAndIpAddr(&pVarBind->name, &myOid, item,
ipRouteTable->table[tableIndex - 1].dwForwardDest);
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
/*****************************************************************************
* SnmpExtensionQuery [INETMIB1.@]
*/
BOOL WINAPI SnmpExtensionQuery(BYTE bPduType, SnmpVarBindList *pVarBindList,
AsnInteger32 *pErrorStatus, AsnInteger32 *pErrorIndex)
{
AsnObjectIdentifier mib2oid = DEFINE_OID(mib2);
AsnInteger32 error = SNMP_ERRORSTATUS_NOERROR, errorIndex = 0;
UINT i;
BOOL ret = TRUE;
TRACE("(0x%02x, %p, %p, %p)\n", bPduType, pVarBindList,
pErrorStatus, pErrorIndex);
for (i = 0; !error && i < pVarBindList->len; i++)
{
/* Ignore any OIDs not in MIB2 */
if (!SnmpUtilOidNCmp(&pVarBindList->list[i].name, &mib2oid,
mib2oid.idLength))
{
struct mibImplementation *impl = NULL;
UINT len, matchingIndex = 0;
TRACE("%s\n", SnmpUtilOidToA(&pVarBindList->list[i].name));
/* Search for an implementation matching as many octets as possible
*/
for (len = pVarBindList->list[i].name.idLength;
len >= minSupportedIDLength && !impl; len--)
impl = findSupportedQuery(pVarBindList->list[i].name.ids, len,
&matchingIndex);
if (impl && impl->query)
ret = impl->query(bPduType, &pVarBindList->list[i], &error);
else
error = SNMP_ERRORSTATUS_NOSUCHNAME;
if (error == SNMP_ERRORSTATUS_NOSUCHNAME &&
bPduType == SNMP_PDU_GETNEXT)
{
/* GetNext is special: it finds the successor to the given OID,
* so we have to continue until an implementation handles the
* query or we exhaust the table of supported OIDs.
*/
for (matchingIndex++; error == SNMP_ERRORSTATUS_NOSUCHNAME &&
matchingIndex < DEFINE_SIZEOF(supportedIDs);
matchingIndex++)
{
error = SNMP_ERRORSTATUS_NOERROR;
impl = &supportedIDs[matchingIndex];
if (impl->query)
ret = impl->query(bPduType, &pVarBindList->list[i],
&error);
else
error = SNMP_ERRORSTATUS_NOSUCHNAME;
}
/* If the query still isn't resolved, set the OID to the
* successor to the last entry in the table.
*/
if (error == SNMP_ERRORSTATUS_NOSUCHNAME)
{
SnmpUtilOidFree(&pVarBindList->list[i].name);
ret = SnmpUtilOidCpy(&pVarBindList->list[i].name,
&supportedIDs[matchingIndex - 1].name);
pVarBindList->list[i].name.ids[
pVarBindList->list[i].name.idLength - 1] += 1;
}
}
if (error)
errorIndex = i + 1;
}
}
*pErrorStatus = error;
*pErrorIndex = errorIndex;
return ret;
}
}
break;
case SNMP_PDU_SET:
*pErrorStatus = SNMP_ERRORSTATUS_READONLY;
ret = FALSE;
break;
default:
FIXME("0x%02x: unsupported PDU type\n", bPduType);
*pErrorStatus = SNMP_ERRORSTATUS_NOSUCHNAME;
}
return ret;
}
/* This list MUST BE lexicographically sorted */
static struct mibImplementation supportedIDs[] = {
{ DEFINE_OID(mib2IfNumber), mib2IfNumberInit, mib2IfNumberQuery,
mib2IfNumberCleanup },
{ DEFINE_OID(mib2IfEntry), NULL, mib2IfEntryQuery, NULL },
{ DEFINE_OID(mib2Ip), mib2IpStatsInit, mib2IpStatsQuery, NULL },
{ DEFINE_OID(mib2IpAddr), mib2IpAddrInit, mib2IpAddrQuery,
mib2IpAddrCleanup },
{ DEFINE_OID(mib2IpRoute), mib2IpRouteInit, mib2IpRouteQuery,
mib2IpRouteCleanup },
{ DEFINE_OID(mib2IpNet), mib2IpNetInit, mib2IpNetQuery, mib2IpNetCleanup },
{ DEFINE_OID(mib2Icmp), mib2IcmpInit, mib2IcmpQuery, NULL },
{ DEFINE_OID(mib2Tcp), mib2TcpInit, mib2TcpQuery, NULL },
{ DEFINE_OID(mib2Udp), mib2UdpInit, mib2UdpQuery, NULL },
{ DEFINE_OID(mib2UdpEntry), mib2UdpEntryInit, mib2UdpEntryQuery,
mib2UdpEntryCleanup },
};
static UINT minSupportedIDLength;
