/**
* addEapolHeaders
*
* FUNCTION:
* Prepends the EAPOL header to a packet.
*
* ASSUMPTIONS:
* The packet has enough space available for prepending the EAPOL
* header.
*
* @param packet the packet to prepend to
* @param dstMac the MAC address of the destination (authenticator)
* @param srcMac the MAC address of the source (supplicant)
* @param eapolType the EAPOL-Type field
*
* @return ANI_OK if the operation succeeds
*/
static int
addEapolHeaders(tAniPacket *packet,
tAniMacAddr dstMac,
tAniMacAddr srcMac,
v_U8_t eapolType)
{
int retVal;
v_U16_t len;
do
{
retVal = aniAsfPacketGetLen(packet);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
len = retVal;
retVal = aniAsfPacketPrepend16(packet, len);
retVal = aniAsfPacketPrepend8(packet, eapolType);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, EAPOL_VERSION_BYTES, 1);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, ANI_ETH_P_EAPOL_BYTES, 2);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
//Since TL expects SNAP header in all packets we send, put it in
retVal = aniAsfPacketPrependBuffer(packet, BAP_RSN_LLC_HEADER, sizeof(BAP_RSN_LLC_HEADER));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
//packet length
len += 6/*length + eapolType+version + eth_type*/ + sizeof(BAP_RSN_LLC_HEADER);
retVal = aniAsfPacketPrepend16(packet, len);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, srcMac, sizeof(tAniMacAddr));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, dstMac, sizeof(tAniMacAddr));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
}while( 0 );
return retVal;
}
static int
addEapolHeaders(tAniPacket *packet,
tAniMacAddr dstMac,
tAniMacAddr srcMac,
v_U8_t eapolType)
{
int retVal;
v_U16_t len;
do
{
retVal = aniAsfPacketGetLen(packet);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
len = retVal;
retVal = aniAsfPacketPrepend16(packet, len);
retVal = aniAsfPacketPrepend8(packet, eapolType);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, EAPOL_VERSION_BYTES, 1);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, ANI_ETH_P_EAPOL_BYTES, 2);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, BAP_RSN_LLC_HEADER, sizeof(BAP_RSN_LLC_HEADER));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
len += 6 + sizeof(BAP_RSN_LLC_HEADER);
retVal = aniAsfPacketPrepend16(packet, len);
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, srcMac, sizeof(tAniMacAddr));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
retVal = aniAsfPacketPrependBuffer(packet, dstMac, sizeof(tAniMacAddr));
if( !ANI_IS_STATUS_SUCCESS( retVal ) ) break;
}while( 0 );
return retVal;
}
