/** @file | |
Raw IP4 transmit application | |
Copyright (c) 2011-2012, Intel Corporation | |
All rights reserved. This program and the accompanying materials | |
are licensed and made available under the terms and conditions of the BSD License | |
which accompanies this distribution. The full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#include "RawIp4Tx.h" | |
UINT8 mBuffer[1024]; | |
/** | |
Transmit raw IP4 packets to the remote system. | |
@param [in] ArgC Argument count | |
@param [in] ArgV Argument value array | |
@retval 0 Successfully operation | |
**/ | |
int | |
RawIp4Tx ( | |
IN int ArgC, | |
IN char **ArgV | |
) | |
{ | |
UINT32 BytesSent; | |
ssize_t BytesTransmitted; | |
struct sockaddr_in LocalPort; | |
UINT32 RemoteAddress[4]; | |
struct sockaddr_in RemotePort; | |
int RetVal; | |
UINT32 TotalSent; | |
SOCKET s; | |
// | |
// Create the socket | |
// | |
s = socket ( AF_INET, SOCK_RAW, RAW_PROTOCOL ); | |
if ( -1 == s ) { | |
RetVal = GET_ERRNO; | |
printf ( "ERROR - socket error, errno: %d\r\n", RetVal ); | |
} | |
else { | |
// | |
// Use for/break; instead of goto | |
// | |
for ( ; ; ) { | |
// | |
// Validate the arguments | |
// | |
if (( 2 > ArgC ) | |
|| ( 4 != sscanf ( ArgV[1], | |
"%d.%d.%d.%d", | |
&RemoteAddress[0], | |
&RemoteAddress[1], | |
&RemoteAddress[2], | |
&RemoteAddress[3])) | |
|| ( 224 < RemoteAddress[0]) | |
|| ( 255 < RemoteAddress[1]) | |
|| ( 255 < RemoteAddress[2]) | |
|| ( 255 < RemoteAddress[3]) | |
|| (( 0 == RemoteAddress[0]) | |
&& ( 0 == RemoteAddress[1]) | |
&& ( 0 == RemoteAddress[2]) | |
&& ( 0 == RemoteAddress[3]))) { | |
printf ( "%s <remote IP address>\r\n", ArgV[0]); | |
RetVal = EINVAL; | |
break; | |
} | |
// | |
// Bind the socket to a local port | |
// | |
memset ( &LocalPort, 0, sizeof ( LocalPort )); | |
SIN_LEN ( LocalPort ) = sizeof ( LocalPort ); | |
SIN_FAMILY ( LocalPort ) = AF_INET; | |
SIN_ADDR ( LocalPort ) = 0; | |
SIN_PORT ( LocalPort ) = 0; | |
RetVal = bind ( s, | |
(struct sockaddr *)&LocalPort, | |
sizeof ( LocalPort )); | |
if ( -1 == RetVal ) { | |
RetVal = GET_ERRNO; | |
printf ( "ERROR - bind error, errno: %d\r\n", RetVal ); | |
break; | |
} | |
// | |
// Specify the remote port | |
// | |
memset ( &RemotePort, 0, sizeof ( RemotePort )); | |
SIN_LEN ( RemotePort ) = sizeof ( RemotePort ); | |
SIN_FAMILY ( RemotePort ) = AF_INET; | |
SIN_ADDR ( RemotePort ) = ( RemoteAddress[3] << 24 ) | |
| ( RemoteAddress[2] << 16 ) | |
| ( RemoteAddress[1] << 8 ) | |
| RemoteAddress[0]; | |
SIN_PORT ( RemotePort ) = 0; | |
// | |
// Initialize the messages | |
// | |
memset ( &mBuffer[0], 0, sizeof ( mBuffer )); | |
// | |
// Send the data before the out-of-band message | |
// | |
TotalSent = 0; | |
BytesSent = 0; | |
do { | |
BytesTransmitted = sendto ( s, | |
&mBuffer[BytesSent], | |
sizeof ( mBuffer ) - BytesSent, | |
0, | |
(struct sockaddr *)&RemotePort, | |
sizeof ( RemotePort )); | |
if ( -1 == BytesTransmitted ) { | |
RetVal = GET_ERRNO; | |
printf ( "ERROR - send before error, errno: %d\r\n", RetVal ); | |
break; | |
} | |
BytesSent += (UINT32)BytesTransmitted; | |
RetVal = 0; | |
} while ( sizeof ( mBuffer ) > BytesSent ); | |
if ( 0 != RetVal ) { | |
break; | |
} | |
TotalSent += BytesSent; | |
// | |
// Test completed successfully | |
// | |
if ( 0 == RetVal ) { | |
printf ( "Bytes sent: %8d\r\n", TotalSent ); | |
} | |
break; | |
} | |
// | |
// Close the socket | |
// | |
CLOSE_SOCKET ( s ); | |
} | |
// | |
// Return the operation status | |
// | |
return RetVal; | |
} |