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Change TunOidSet/TunOidQuery() parameters

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All parameters to TunOidSet/TunOidQuery() are contained inside a
NDIS_OID_REQUEST struct. But, the main rationale behind this commit is
that OID_PNP_SET_POWER set request will require pointer to original
NDIS_OID_REQUEST struct for NdisMOidRequestComplete() call, should we
want to implement pending PnP power-down.

Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-04-02 14:17:53 +02:00
parent 8eefe85bb2
commit 934923bbc1
1 changed files with 26 additions and 22 deletions
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48
wintun.c
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@ -1210,35 +1210,37 @@ static void TunHaltEx(NDIS_HANDLE MiniportAdapterContext, NDIS_HALT_ACTION HaltA
}
_IRQL_requires_max_(PASSIVE_LEVEL)
static NDIS_STATUS TunOidSet(_Inout_ TUN_CTX *ctx, _In_ NDIS_OID Oid, _In_bytecount_(InformationBufferLength) const void *InformationBuffer, _In_ UINT InformationBufferLength, _Out_ UINT *BytesRead, _Out_ UINT *BytesNeeded)
static NDIS_STATUS TunOidSet(_Inout_ TUN_CTX *ctx, _Inout_ NDIS_OID_REQUEST *OidRequest)
{
*BytesRead = 0;
*BytesNeeded = 0;
ASSERT(OidRequest->RequestType == NdisRequestSetInformation);
switch (Oid) {
OidRequest->DATA.SET_INFORMATION.BytesRead = 0;
OidRequest->DATA.SET_INFORMATION.BytesNeeded = 0;
switch (OidRequest->DATA.SET_INFORMATION.Oid) {
case OID_GEN_CURRENT_PACKET_FILTER:
case OID_GEN_CURRENT_LOOKAHEAD:
if (InformationBufferLength != 4) {
*BytesNeeded = 4;
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != 4) {
OidRequest->DATA.SET_INFORMATION.BytesNeeded = 4;
return NDIS_STATUS_INVALID_LENGTH;
}
*BytesRead = 4;
OidRequest->DATA.SET_INFORMATION.BytesRead = 4;
return NDIS_STATUS_SUCCESS;
case OID_GEN_LINK_PARAMETERS:
*BytesRead = InformationBufferLength;
OidRequest->DATA.SET_INFORMATION.BytesRead = OidRequest->DATA.SET_INFORMATION.InformationBufferLength;
return NDIS_STATUS_SUCCESS;
case OID_GEN_INTERRUPT_MODERATION:
return NDIS_STATUS_INVALID_DATA;
case OID_PNP_SET_POWER:
if (InformationBufferLength != sizeof(NDIS_DEVICE_POWER_STATE)) {
*BytesNeeded = sizeof(NDIS_DEVICE_POWER_STATE);
if (OidRequest->DATA.SET_INFORMATION.InformationBufferLength != sizeof(NDIS_DEVICE_POWER_STATE)) {
OidRequest->DATA.SET_INFORMATION.BytesNeeded = sizeof(NDIS_DEVICE_POWER_STATE);
return NDIS_STATUS_INVALID_LENGTH;
}
*BytesRead = sizeof(NDIS_DEVICE_POWER_STATE);
ctx->PowerState = *((NDIS_DEVICE_POWER_STATE *)InformationBuffer);
OidRequest->DATA.SET_INFORMATION.BytesRead = sizeof(NDIS_DEVICE_POWER_STATE);
ctx->PowerState = *((NDIS_DEVICE_POWER_STATE *)OidRequest->DATA.SET_INFORMATION.InformationBuffer);
return NDIS_STATUS_SUCCESS;
}
@ -1247,13 +1249,15 @@ static NDIS_STATUS TunOidSet(_Inout_ TUN_CTX *ctx, _In_ NDIS_OID Oid, _In_byteco
_IRQL_requires_max_(APC_LEVEL)
_Must_inspect_result_
static NDIS_STATUS TunOidQuery(_Inout_ TUN_CTX *ctx, _In_ NDIS_OID Oid, _Out_bytecap_post_bytecount_(InformationBufferLength, *BytesWritten) void *InformationBuffer, _In_ UINT InformationBufferLength, _Out_ UINT *BytesWritten, _Out_ UINT *BytesNeeded)
static NDIS_STATUS TunOidQuery(_Inout_ TUN_CTX *ctx, _Inout_ NDIS_OID_REQUEST *OidRequest)
{
ASSERT(OidRequest->RequestType == NdisRequestQueryInformation || OidRequest->RequestType == NdisRequestQueryStatistics);
UINT value32;
UINT size = sizeof(value32);
const void *buf = &value32;
switch (Oid) {
switch (OidRequest->DATA.QUERY_INFORMATION.Oid) {
case OID_GEN_MAXIMUM_TOTAL_SIZE:
case OID_GEN_TRANSMIT_BLOCK_SIZE:
case OID_GEN_RECEIVE_BLOCK_SIZE:
@ -1316,18 +1320,18 @@ static NDIS_STATUS TunOidQuery(_Inout_ TUN_CTX *ctx, _In_ NDIS_OID Oid, _Out_byt
break;
default:
*BytesWritten = 0;
OidRequest->DATA.QUERY_INFORMATION.BytesWritten = 0;
return NDIS_STATUS_INVALID_OID;
}
if (size > InformationBufferLength) {
*BytesNeeded = size;
*BytesWritten = 0;
if (size > OidRequest->DATA.QUERY_INFORMATION.InformationBufferLength) {
OidRequest->DATA.QUERY_INFORMATION.BytesNeeded = size;
OidRequest->DATA.QUERY_INFORMATION.BytesWritten = 0;
return NDIS_STATUS_INVALID_LENGTH;
}
NdisMoveMemory(InformationBuffer, buf, size);
*BytesNeeded = *BytesWritten = size;
NdisMoveMemory(OidRequest->DATA.QUERY_INFORMATION.InformationBuffer, buf, size);
OidRequest->DATA.QUERY_INFORMATION.BytesNeeded = OidRequest->DATA.QUERY_INFORMATION.BytesWritten = size;
return NDIS_STATUS_SUCCESS;
}
@ -1339,10 +1343,10 @@ static NDIS_STATUS TunOidRequest(NDIS_HANDLE MiniportAdapterContext, PNDIS_OID_R
switch (OidRequest->RequestType) {
case NdisRequestQueryInformation:
case NdisRequestQueryStatistics:
return TunOidQuery(MiniportAdapterContext, OidRequest->DATA.QUERY_INFORMATION.Oid, OidRequest->DATA.QUERY_INFORMATION.InformationBuffer, OidRequest->DATA.QUERY_INFORMATION.InformationBufferLength, &OidRequest->DATA.QUERY_INFORMATION.BytesWritten, &OidRequest->DATA.QUERY_INFORMATION.BytesNeeded);
return TunOidQuery(MiniportAdapterContext, OidRequest);
case NdisRequestSetInformation:
return TunOidSet(MiniportAdapterContext, OidRequest->DATA.SET_INFORMATION.Oid, OidRequest->DATA.SET_INFORMATION.InformationBuffer, OidRequest->DATA.SET_INFORMATION.InformationBufferLength, &OidRequest->DATA.SET_INFORMATION.BytesRead, &OidRequest->DATA.SET_INFORMATION.BytesNeeded);
return TunOidSet(MiniportAdapterContext, OidRequest);
default:
return NDIS_STATUS_NOT_SUPPORTED;