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Add comments for functions and fix some coding style issue.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6885 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
niry
2008-12-05 23:47:55 +00:00
parent 4e2dd553a6
commit 120db52c6d
12 changed files with 329 additions and 367 deletions
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63
MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Option.c
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@@ -22,6 +22,14 @@ Abstract:
#include "Tcp4Main.h"
/**
Get a UINT16 value from buffer.
@param Buf Pointer to input buffer.
@return The UINT16 value get from buffer.
**/
UINT16
TcpGetUint16 (
IN UINT8 *Buf
@@ -32,17 +40,14 @@ TcpGetUint16 (
return NTOHS (Value);
}
// STATIC
// VOID
// TcpPutUint16 (
// IN UINT8 *Buf,
// IN UINT16 Data
// )
// {
// Data = HTONS (Data);
// CopyMem (Buf, &Data, sizeof (UINT16));
// }
/**
Get a UINT32 value from buffer.
@param Buf Pointer to input buffer.
@return The UINT32 value get from buffer.
**/
UINT32
TcpGetUint32 (
IN UINT8 *Buf
@@ -53,6 +58,13 @@ TcpGetUint32 (
return NTOHL (Value);
}
/**
Put a UINT32 value in buffer.
@param Buf Pointer to the buffer.
@param Data The UINT32 Date to put in buffer
**/
VOID
TcpPutUint32 (
IN UINT8 *Buf,
@@ -65,12 +77,11 @@ TcpPutUint32 (
/**
Compute the window scale value according to the given
buffer size.
Compute the window scale value according to the given buffer size.
@param Tcb Pointer to the TCP_CB of this TCP instance.
@retval UINT8 The scale value.
@return The scale value.
**/
UINT8
@@ -81,7 +92,7 @@ TcpComputeScale (
UINT8 Scale;
UINT32 BufSize;
ASSERT (Tcb && Tcb->Sk);
ASSERT ((Tcb != NULL) && (Tcb->Sk != NULL));
BufSize = GET_RCV_BUFFSIZE (Tcb->Sk);
@@ -102,7 +113,7 @@ TcpComputeScale (
@param Tcb Pointer to the TCP_CB of this TCP instance.
@param Nbuf Pointer to the buffer to store the options.
@return The total length of the TCP option field.
@return The total length of the TCP option field.
**/
UINT16
@@ -114,7 +125,7 @@ TcpSynBuildOption (
UINT8 *Data;
UINT16 Len;
ASSERT (Tcb && Nbuf && !Nbuf->Tcp);
ASSERT ((Tcb != NULL) && (Nbuf != NULL) && (Nbuf->Tcp == NULL));
Len = 0;
@@ -125,7 +136,7 @@ TcpSynBuildOption (
//
if (!TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_NO_TS) &&
(!TCP_FLG_ON (TCPSEG_NETBUF (Nbuf)->Flag, TCP_FLG_ACK) ||
TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_RCVD_TS))) {
TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_RCVD_TS))) {
Data = NetbufAllocSpace (
Nbuf,
@@ -133,7 +144,7 @@ TcpSynBuildOption (
NET_BUF_HEAD
);
ASSERT (Data);
ASSERT (Data != NULL);
Len += TCP_OPTION_TS_ALIGNED_LEN;
TcpPutUint32 (Data, TCP_OPTION_TS_FAST);
@@ -148,7 +159,7 @@ TcpSynBuildOption (
//
if (!TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_NO_WS) &&
(!TCP_FLG_ON (TCPSEG_NETBUF (Nbuf)->Flag, TCP_FLG_ACK) ||
TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_RCVD_WS))) {
TCP_FLG_ON (Tcb->CtrlFlag, TCP_CTRL_RCVD_WS))) {
Data = NetbufAllocSpace (
Nbuf,
@@ -156,7 +167,7 @@ TcpSynBuildOption (
NET_BUF_HEAD
);
ASSERT (Data);
ASSERT (Data != NULL);
Len += TCP_OPTION_WS_ALIGNED_LEN;
TcpPutUint32 (Data, TCP_OPTION_WS_FAST | TcpComputeScale (Tcb));
@@ -166,7 +177,7 @@ TcpSynBuildOption (
// Build MSS option
//
Data = NetbufAllocSpace (Nbuf, TCP_OPTION_MSS_LEN, 1);
ASSERT (Data);
ASSERT (Data != NULL);
Len += TCP_OPTION_MSS_LEN;
TcpPutUint32 (Data, TCP_OPTION_MSS_FAST | Tcb->RcvMss);
@@ -181,7 +192,7 @@ TcpSynBuildOption (
@param Tcb Pointer to the TCP_CB of this TCP instance.
@param Nbuf Pointer to the buffer to store the options.
@return The total length of the TCP option field.
@return The total length of the TCP option field.
**/
UINT16
@@ -193,7 +204,7 @@ TcpBuildOption (
UINT8 *Data;
UINT16 Len;
ASSERT (Tcb && Nbuf && !Nbuf->Tcp);
ASSERT ((Tcb != NULL) && (Nbuf != NULL) && (Nbuf->Tcp == NULL));
Len = 0;
//
@@ -208,7 +219,7 @@ TcpBuildOption (
NET_BUF_HEAD
);
ASSERT (Data);
ASSERT (Data != NULL);
Len += TCP_OPTION_TS_ALIGNED_LEN;
TcpPutUint32 (Data, TCP_OPTION_TS_FAST);
@@ -243,7 +254,7 @@ TcpParseOption (
UINT8 Type;
UINT8 Len;
ASSERT (Tcp && Option);
ASSERT ((Tcp != NULL) && (Option != NULL));
Option->Flag = 0;
@@ -333,7 +344,7 @@ TcpParseOption (
default:
Len = Head[Cur + 1];
if (TotalLen - Cur < Len || Len < 2) {
if ((TotalLen - Cur) < Len || Len < 2) {
return -1;
}