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#include "Mp_Precomp.h"
#if WPP_SOFTWARE_TRACE
#include "P2P_Util.tmh"
#endif
#include "P2P_Internal.h"
#if (P2P_SUPPORT == 1)
//-----------------------------------------------------------------------------
// Local
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Exported
//-----------------------------------------------------------------------------
VOID
p2p_MoveMemory(
IN VOID *dest,
IN const VOID *src,
IN u4Byte len
)
{
u4Byte it = 0;
for(it = 0; it < len; it++)
*(((u1Byte *)dest) + it) = *(((u1Byte *)src) + it);
}
int
p2p_go_det(
IN u1Byte selfVal,
IN u1Byte peerVal
)
{
u1Byte selfIntent = selfVal >> 1;
u1Byte peerIntent = peerVal >> 1;
RT_TRACE_F(COMP_P2P, DBG_LOUD, ("self intent: %u, tie: %u, peer intent: %u, tie: %u\n",
selfVal >> 1, selfVal & 0x01, peerVal >> 1, peerVal & 0x01));
if(selfIntent == peerIntent)
{
if (P2P_MAX_GO_INTENT == selfIntent)
return -1; /* both devices want to become GO */
/* Use tie breaker bit to determine GO */
return (peerVal & 0x01) ? 0 : 1;
}
return selfIntent > peerIntent;
}
BOOLEAN
p2p_ActingAs_Go(
IN P2P_INFO *pP2PInfo
)
{
BOOLEAN bGo = FALSE;
ADAPTER *pExtAdapter = P2P_ADAPTER_OS_SUPPORT_P2P(pP2PInfo->pAdapter)
? pP2PInfo->pAdapter
: GetFirstGOPort(pP2PInfo->pAdapter);
bGo = (P2P_GO == pP2PInfo->Role && ACTING_AS_AP(pExtAdapter)); // copied from P2PMakeP2PCapability
if(bGo)
{
SET_FLAG(pP2PInfo->GroupCapability, P2P_GROUP_CAP_GROUP_OWNER);
}
else
{
CLEAR_FLAG(pP2PInfo->GroupCapability, P2P_GROUP_CAP_GROUP_OWNER);
}
return bGo;
}
BOOLEAN
p2p_Doing_Provisioning(
IN const P2P_INFO *pP2PInfo
)
{
PMGNT_INFO pDefaultMgntInfo = &(GetDefaultAdapter(pP2PInfo->pAdapter)->MgntInfo);
if(0 < GET_SIMPLE_CONFIG_IE_LEN(pDefaultMgntInfo) && GET_SIMPLE_CONFIG_ENABLED(pDefaultMgntInfo))
{
return TRUE;
}
return FALSE;
}
BOOLEAN
p2p_Check_GroupLimitReached(
IN P2P_INFO *pP2PInfo
)
{
if(p2p_ActingAs_Go(pP2PInfo))
{
if(P2P_MAX_P2P_CLIENT <= P2PClientInfoGetCount(pP2PInfo))
{// no further P2P connections are supported
SET_FLAG(pP2PInfo->GroupCapability, P2P_GROUP_CAP_GROUP_LIMIT);
return TRUE;
}
}
return FALSE;
}
P2P_DEV_TYPE
p2p_MessageSrcType(
IN const P2P_MESSAGE *msg,
IN P2P_FRAME_TYPE frameType
)
{
if(frameType < P2P_FID_ACTION_START
&& !FrameBuf_Length(&msg->p2pAttributes)
)
{
return P2P_DEV_TYPE_LEGACY;
}
if(msg->_dialogToken)
{// action frame
if(msg->_capability)
{
if(TEST_FLAG(msg->grpCap, P2P_GROUP_CAP_GROUP_OWNER))
{
if(P2P_FID_GO_NEG_REQ == frameType
|| P2P_FID_GO_NEG_RSP == frameType
|| P2P_FID_GO_NEG_CONF == frameType
)
{
return P2P_DEV_TYPE_DEV; // Actiontec ScreenBeam sends GO Neg Rsp with GO bit set
}
return P2P_DEV_TYPE_GO;
}
else
return P2P_DEV_TYPE_DEV;
}
return P2P_DEV_TYPE_DEV;
}
else
{
if(!FrameBuf_Length(&msg->p2pAttributes))
return P2P_DEV_TYPE_LEGACY;
if(msg->_capability)
{
if(TEST_FLAG(msg->grpCap, P2P_GROUP_CAP_GROUP_OWNER))
return P2P_DEV_TYPE_GO;
else
return P2P_DEV_TYPE_DEV;
}
}
return P2P_DEV_TYPE_LEGACY;
}
BOOLEAN
p2p_FindClientInfoByDevAddr(
IN const u1Byte *devAddr,
IN const P2P_MESSAGE *msg,
OUT const u1Byte **ppCliInfo
)
{
BOOLEAN bFound = FALSE;
if(msg->_grpInfo && TEST_FLAG(msg->grpCap, P2P_GROUP_CAP_GROUP_OWNER))
{
const u1Byte *pos = msg->cliInfoDescList;
const u1Byte *end = msg->cliInfoDescList + msg->cliInfoDescListLen;
while(pos < end)
{
u1Byte len = 0;
const u1Byte *infostart = NULL;
const u1Byte *infoend = NULL;
infostart = pos;
len = pos[0];
pos += 1;
infoend = pos + len;
if(end < infoend)
{
RT_TRACE_F(COMP_P2P, DBG_WARNING, ("client info length field overflow: %u\n", len));
break;
}
if(len < 6 + 6 + 1 + 2 + 8 + 1)
{
RT_TRACE_F(COMP_P2P, DBG_WARNING, ("invalid client info length field: %u\n", len));
break;
}
if(eqMacAddr(pos, devAddr))
{
bFound = TRUE;
if(ppCliInfo)
*ppCliInfo = infostart;
break;
}
else
{
pos = infoend;
}
}
}
return bFound;
}
#endif
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