[reactos] 05/06: [SDK][IP] Pass IP options to ReceiveDatagramHandler

[Victor Perevertkin]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=d5ad2057d7f9ef52ae3214...

commit d5ad2057d7f9ef52ae3214ce78c6d6bbabaee3b0
Author:     Victor Perevertkin [e-mail]
AuthorDate: Fri Dec 20 23:19:41 2019 +0300
Commit:     Victor Perevertkin [e-mail]
CommitDate: Tue Apr 7 05:32:40 2020 +0300

[SDK][IP] Pass IP options to ReceiveDatagramHandler
---
 sdk/lib/drivers/ip/transport/datagram/datagram.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/sdk/lib/drivers/ip/transport/datagram/datagram.c b/sdk/lib/drivers/ip/transport/datagram/datagram.c
index c910ed6c386..13acca1f181 100644
--- a/sdk/lib/drivers/ip/transport/datagram/datagram.c
+++ b/sdk/lib/drivers/ip/transport/datagram/datagram.c
@@ -74,8 +74,6 @@ DGDeliverData(
  */
 {
     KIRQL OldIrql;
-    PTDI_IND_RECEIVE_DATAGRAM ReceiveHandler;
-    PVOID HandlerContext;
     LONG AddressLength;
     PVOID SourceAddress;
     ULONG BytesTaken;
@@ -164,15 +162,22 @@ DGDeliverData(
     }
     else if (AddrFile->RegisteredReceiveDatagramHandler)
     {
-        TI_DbgPrint(MAX_TRACE, ("Calling receive event handler.\n"));
+        PTDI_IND_RECEIVE_DATAGRAM ReceiveHandler = AddrFile->ReceiveDatagramHandler;
+        PVOID HandlerContext = AddrFile->ReceiveDatagramHandlerContext;
+        PVOID OptionsData = NULL;
+        INT32 OptionsSize = 0;

-        ReceiveHandler = AddrFile->ReceiveDatagramHandler;
-        HandlerContext = AddrFile->ReceiveDatagramHandlerContext;
+        TI_DbgPrint(MAX_TRACE, ("Calling receive event handler.\n"));

if (SrcAddress->Type == IP_ADDRESS_V4)
         {
             AddressLength = sizeof(IPv4_RAW_ADDRESS);
             SourceAddress = &SrcAddress->Address.IPv4Address;
+            OptionsSize = IPPacket->HeaderSize - sizeof(IPv4_HEADER);
+            if (OptionsSize > 0)
+            {
+                OptionsData = (PUCHAR)IPPacket->Header + sizeof(IPv4_HEADER);
+            }
         }
         else /* (Address->Type == IP_ADDRESS_V6) */
         {
@@ -183,11 +188,13 @@ DGDeliverData(
         ReferenceObject(AddrFile);
         UnlockObject(AddrFile, OldIrql);

+        TI_DbgPrint(MIN_TRACE, ("OptionsSize %d DataSize: %u\n", OptionsSize, DataSize));
+
         Status = (*ReceiveHandler)(HandlerContext,
             AddressLength,
             SourceAddress,
-            0,
-            NULL,
+            OptionsSize,
+            OptionsData,
             TDI_RECEIVE_ENTIRE_MESSAGE,
             DataSize,
             DataSize,
@@ -209,7 +216,6 @@ DGDeliverData(
     TI_DbgPrint(MAX_TRACE, ("Leaving.\n"));
 }

-
 VOID DGReceiveComplete(PVOID Context, NTSTATUS Status, ULONG Count) {
     PDATAGRAM_RECEIVE_REQUEST ReceiveRequest =
    (PDATAGRAM_RECEIVE_REQUEST)Context;