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VBoxNetAdp-win.cpp
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VBoxNetAdp-win.cpp
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/* $Id$ */
/** @file
* VBoxNetAdp-win.cpp - NDIS6 Host-only Networking Driver, Windows-specific code.
*/
/*
* Copyright (C) 2014-2024 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#define LOG_GROUP LOG_GROUP_NET_ADP_DRV
#include <VBox/log.h>
#include <VBox/version.h>
#include <VBox/err.h>
#include <VBox/sup.h>
#include <VBox/intnet.h>
#include <VBox/intnetinline.h>
#include <iprt/assert.h>
#include <iprt/initterm.h>
#include <iprt/list.h>
#include <iprt/net.h>
#include <iprt/semaphore.h>
#include <iprt/string.h>
#include <iprt/uuid.h>
#include <iprt/nt/ntddk.h>
#include <iprt/nt/ndis.h>
#include "VBoxNetAdp-win.h"
#include "VBox/VBoxNetCmn-win.h"
#define VBOXNETADP_MEM_TAG 'OHBV'
/*
* By default the link speed reported to be 1Gbps. We may wish to lower
* it to 100Mbps to work around issues with multi-cast traffic on the host.
* See @bugref{6379}.
*/
#define VBOXNETADPWIN_LINK_SPEED 1000000000ULL
#define LogError LogRel
/* Forward declarations */
MINIPORT_INITIALIZE vboxNetAdpWinInitializeEx;
MINIPORT_HALT vboxNetAdpWinHaltEx;
MINIPORT_UNLOAD vboxNetAdpWinUnload;
MINIPORT_PAUSE vboxNetAdpWinPause;
MINIPORT_RESTART vboxNetAdpWinRestart;
MINIPORT_OID_REQUEST vboxNetAdpWinOidRequest;
MINIPORT_SEND_NET_BUFFER_LISTS vboxNetAdpWinSendNetBufferLists;
MINIPORT_RETURN_NET_BUFFER_LISTS vboxNetAdpWinReturnNetBufferLists;
MINIPORT_CANCEL_SEND vboxNetAdpWinCancelSend;
MINIPORT_CHECK_FOR_HANG vboxNetAdpWinCheckForHangEx;
MINIPORT_RESET vboxNetAdpWinResetEx;
MINIPORT_DEVICE_PNP_EVENT_NOTIFY vboxNetAdpWinDevicePnPEventNotify;
MINIPORT_SHUTDOWN vboxNetAdpWinShutdownEx;
MINIPORT_CANCEL_OID_REQUEST vboxNetAdpWinCancelOidRequest;
/* Packet types by destination address; used in statistics. */
typedef enum {
kVBoxNetAdpWinPacketType_Unicast,
kVBoxNetAdpWinPacketType_Multicast,
kVBoxNetAdpWinPacketType_Broadcast,
kVBoxNetAdpWinPacketType_ArraySize /* Must be the last one */
} VBOXNETADPWIN_PACKET_TYPE;
/* Miniport states as defined by NDIS. */
typedef enum {
kVBoxNetAdpWinState_Initializing,
kVBoxNetAdpWinState_Paused,
kVBoxNetAdpWinState_Restarting,
kVBoxNetAdpWinState_Running,
kVBoxNetAdpWinState_Pausing,
kVBoxNetAdpWinState_32BitHack = 0x7fffffff
} VBOXNETADPWIN_ADAPTER_STATE;
/*
* Valid state transitions are:
* 1) Disconnected -> Connecting : start the worker thread, attempting to init IDC;
* 2) Connecting -> Disconnected : failed to start IDC init worker thread;
* 3) Connecting -> Connected : IDC init successful, terminate the worker;
* 4) Connecting -> Stopping : IDC init incomplete, but the driver is being unloaded, terminate the worker;
* 5) Connected -> Stopping : IDC init was successful, no worker, the driver is being unloaded;
*
* Driver terminates in either in Disconnected or in Stopping state.
*/
typedef enum {
kVBoxNetAdpWinIdcState_Disconnected = 0, /* Initial state */
kVBoxNetAdpWinIdcState_Connecting, /* Attemping to init IDC, worker thread running */
kVBoxNetAdpWinIdcState_Connected, /* Successfully connected to IDC, worker thread terminated */
kVBoxNetAdpWinIdcState_Stopping /* Terminating the worker thread and disconnecting IDC */
} VBOXNETADPWIN_IDC_STATE;
typedef struct _VBOXNETADPGLOBALS
{
/** Miniport driver handle. */
NDIS_HANDLE hMiniportDriver;
/** Power management capabilities, shared by all instances, do not change after init. */
NDIS_PNP_CAPABILITIES PMCaps;
/** The INTNET trunk network interface factory. */
INTNETTRUNKFACTORY TrunkFactory;
/** The SUPDRV component factory registration. */
SUPDRVFACTORY SupDrvFactory;
/** The SUPDRV IDC handle (opaque struct). */
SUPDRVIDCHANDLE SupDrvIDC;
/** IDC init thread handle. */
HANDLE hInitIdcThread;
/** Lock protecting the following members. */
NDIS_SPIN_LOCK Lock;
/** Lock-protected: the head of module list. */
RTLISTANCHOR ListOfAdapters;
/** Lock-protected: The number of current factory references. */
int32_t volatile cFactoryRefs;
/** Lock-protected: IDC initialization state. */
volatile uint32_t enmIdcState;
/** Lock-protected: event signaled when trunk factory is not in use. */
NDIS_EVENT EventUnloadAllowed;
} VBOXNETADPGLOBALS, *PVBOXNETADPGLOBALS;
/* win-specific global data */
VBOXNETADPGLOBALS g_VBoxNetAdpGlobals;
typedef struct _VBOXNETADP_ADAPTER {
/** Auxiliary member to link adapters into a list. */
RTLISTNODE node;
/** Adapter handle for NDIS. */
NDIS_HANDLE hAdapter;
/** Memory pool network buffers are allocated from. */
NDIS_HANDLE hPool;
/** Our RJ-45 port.
* This is what the internal network plugs into. */
INTNETTRUNKIFPORT MyPort;
/** The RJ-45 port on the INTNET "switch".
* This is what we're connected to. */
PINTNETTRUNKSWPORT pSwitchPort;
/** Pointer to global data */
PVBOXNETADPGLOBALS pGlobals;
/** Adapter state in NDIS, used for assertions only */
VBOXNETADPWIN_ADAPTER_STATE volatile enmAdapterState; /// @todo do we need it really?
/** The trunk state. */
INTNETTRUNKIFSTATE volatile enmTrunkState;
/** Number of pending operations, when it reaches zero we signal EventIdle. */
int32_t volatile cBusy;
/** The event that is signaled when we go idle and that pfnWaitForIdle blocks on. */
NDIS_EVENT EventIdle;
/** MAC address of adapter. */
RTMAC MacAddr;
/** Statistics: bytes received from internal network. */
uint64_t au64StatsInOctets[kVBoxNetAdpWinPacketType_ArraySize];
/** Statistics: packets received from internal network. */
uint64_t au64StatsInPackets[kVBoxNetAdpWinPacketType_ArraySize];
/** Statistics: bytes sent to internal network. */
uint64_t au64StatsOutOctets[kVBoxNetAdpWinPacketType_ArraySize];
/** Statistics: packets sent to internal network. */
uint64_t au64StatsOutPackets[kVBoxNetAdpWinPacketType_ArraySize];
/** Adapter friendly name. */
char szName[1];
} VBOXNETADP_ADAPTER;
typedef VBOXNETADP_ADAPTER *PVBOXNETADP_ADAPTER;
/* Port */
#define IFPORT_2_VBOXNETADP_ADAPTER(pIfPort) \
( (PVBOXNETADP_ADAPTER)((uint8_t *)(pIfPort) - RT_UOFFSETOF(VBOXNETADP_ADAPTER, MyPort)) )
DECLINLINE(VBOXNETADPWIN_ADAPTER_STATE) vboxNetAdpWinGetState(PVBOXNETADP_ADAPTER pThis)
{
return (VBOXNETADPWIN_ADAPTER_STATE)ASMAtomicUoReadU32((uint32_t volatile *)&pThis->enmAdapterState);
}
DECLINLINE(VBOXNETADPWIN_ADAPTER_STATE) vboxNetAdpWinSetState(PVBOXNETADP_ADAPTER pThis, VBOXNETADPWIN_ADAPTER_STATE enmNewState)
{
return (VBOXNETADPWIN_ADAPTER_STATE)ASMAtomicXchgU32((uint32_t volatile *)&pThis->enmAdapterState, enmNewState);
}
DECLINLINE(bool) vboxNetAdpWinSetState(PVBOXNETADP_ADAPTER pThis, VBOXNETADPWIN_ADAPTER_STATE enmNewState,
VBOXNETADPWIN_ADAPTER_STATE enmOldState)
{
return ASMAtomicCmpXchgU32((uint32_t volatile *)&pThis->enmAdapterState, enmNewState, enmOldState);
}
#ifdef DEBUG
DECLHIDDEN(void) vboxNetAdpWinDumpPackets(const char *pszMsg, PNET_BUFFER_LIST pBufLists)
{
for (PNET_BUFFER_LIST pList = pBufLists; pList; pList = NET_BUFFER_LIST_NEXT_NBL(pList))
{
for (PNET_BUFFER pBuf = NET_BUFFER_LIST_FIRST_NB(pList); pBuf; pBuf = NET_BUFFER_NEXT_NB(pBuf))
{
Log6(("%s packet: cb=%d offset=%d", pszMsg, NET_BUFFER_DATA_LENGTH(pBuf), NET_BUFFER_DATA_OFFSET(pBuf)));
for (PMDL pMdl = NET_BUFFER_FIRST_MDL(pBuf);
pMdl != NULL;
pMdl = NDIS_MDL_LINKAGE(pMdl))
{
Log6((" MDL: cb=%d", MmGetMdlByteCount(pMdl)));
}
Log6(("\n"));
}
}
}
DECLINLINE(const char *) vboxNetAdpWinEthTypeStr(uint16_t uType)
{
switch (uType)
{
case RTNET_ETHERTYPE_IPV4: return "IP";
case RTNET_ETHERTYPE_IPV6: return "IPv6";
case RTNET_ETHERTYPE_ARP: return "ARP";
}
return "unknown";
}
#define VBOXNETADP_PKTDMPSIZE 0x50
/**
* Dump a packet to debug log.
*
* @param cpPacket The packet.
* @param cb The size of the packet.
* @param cszText A string denoting direction of packet transfer.
*/
DECLINLINE(void) vboxNetAdpWinDumpPacket(PCINTNETSG pSG, const char *cszText)
{
uint8_t bPacket[VBOXNETADP_PKTDMPSIZE];
uint32_t cb = pSG->cbTotal < VBOXNETADP_PKTDMPSIZE ? pSG->cbTotal : VBOXNETADP_PKTDMPSIZE;
IntNetSgReadEx(pSG, 0, cb, bPacket);
AssertReturnVoid(cb >= 14);
uint8_t *pHdr = bPacket;
uint8_t *pEnd = bPacket + cb;
AssertReturnVoid(pEnd - pHdr >= 14);
uint16_t uEthType = RT_N2H_U16(*(uint16_t*)(pHdr+12));
Log2(("NetADP: %s (%d bytes), %RTmac => %RTmac, EthType=%s(0x%x)\n",
cszText, pSG->cbTotal, pHdr+6, pHdr, vboxNetAdpWinEthTypeStr(uEthType), uEthType));
pHdr += sizeof(RTNETETHERHDR);
if (uEthType == RTNET_ETHERTYPE_VLAN)
{
AssertReturnVoid(pEnd - pHdr >= 4);
uEthType = RT_N2H_U16(*(uint16_t*)(pHdr+2));
Log2((" + VLAN: id=%d EthType=%s(0x%x)\n", RT_N2H_U16(*(uint16_t*)(pHdr)) & 0xFFF,
vboxNetAdpWinEthTypeStr(uEthType), uEthType));
pHdr += 2 * sizeof(uint16_t);
}
uint8_t uProto = 0xFF;
switch (uEthType)
{
case RTNET_ETHERTYPE_IPV6:
AssertReturnVoid(pEnd - pHdr >= 40);
uProto = pHdr[6];
Log2((" + IPv6: %RTnaipv6 => %RTnaipv6\n", pHdr+8, pHdr+24));
pHdr += 40;
break;
case RTNET_ETHERTYPE_IPV4:
AssertReturnVoid(pEnd - pHdr >= 20);
uProto = pHdr[9];
Log2((" + IP: %RTnaipv4 => %RTnaipv4\n", *(uint32_t*)(pHdr+12), *(uint32_t*)(pHdr+16)));
pHdr += (pHdr[0] & 0xF) * 4;
break;
case RTNET_ETHERTYPE_ARP:
AssertReturnVoid(pEnd - pHdr >= 28);
AssertReturnVoid(RT_N2H_U16(*(uint16_t*)(pHdr+2)) == RTNET_ETHERTYPE_IPV4);
switch (RT_N2H_U16(*(uint16_t*)(pHdr+6)))
{
case 1: /* ARP request */
Log2((" + ARP-REQ: who-has %RTnaipv4 tell %RTnaipv4\n",
*(uint32_t*)(pHdr+24), *(uint32_t*)(pHdr+14)));
break;
case 2: /* ARP reply */
Log2((" + ARP-RPL: %RTnaipv4 is-at %RTmac\n",
*(uint32_t*)(pHdr+14), pHdr+8));
break;
default:
Log2((" + ARP: unknown op %d\n", RT_N2H_U16(*(uint16_t*)(pHdr+6))));
break;
}
break;
/* There is no default case as uProto is initialized with 0xFF */
}
while (uProto != 0xFF)
{
switch (uProto)
{
case 0: /* IPv6 Hop-by-Hop option*/
case 60: /* IPv6 Destination option*/
case 43: /* IPv6 Routing option */
case 44: /* IPv6 Fragment option */
Log2((" + IPv6 option (%d): <not implemented>\n", uProto));
uProto = pHdr[0];
pHdr += pHdr[1] * 8 + 8; /* Skip to the next extension/protocol */
break;
case 51: /* IPv6 IPsec AH */
Log2((" + IPv6 IPsec AH: <not implemented>\n"));
uProto = pHdr[0];
pHdr += (pHdr[1] + 2) * 4; /* Skip to the next extension/protocol */
break;
case 50: /* IPv6 IPsec ESP */
/* Cannot decode IPsec, fall through */
Log2((" + IPv6 IPsec ESP: <not implemented>\n"));
uProto = 0xFF;
break;
case 59: /* No Next Header */
Log2((" + IPv6 No Next Header\n"));
uProto = 0xFF;
break;
case 58: /* IPv6-ICMP */
switch (pHdr[0])
{
case 1: Log2((" + IPv6-ICMP: destination unreachable, code %d\n", pHdr[1])); break;
case 128: Log2((" + IPv6-ICMP: echo request\n")); break;
case 129: Log2((" + IPv6-ICMP: echo reply\n")); break;
default: Log2((" + IPv6-ICMP: unknown type %d, code %d\n", pHdr[0], pHdr[1])); break;
}
uProto = 0xFF;
break;
case 1: /* ICMP */
switch (pHdr[0])
{
case 0: Log2((" + ICMP: echo reply\n")); break;
case 8: Log2((" + ICMP: echo request\n")); break;
case 3: Log2((" + ICMP: destination unreachable, code %d\n", pHdr[1])); break;
default: Log2((" + ICMP: unknown type %d, code %d\n", pHdr[0], pHdr[1])); break;
}
uProto = 0xFF;
break;
case 6: /* TCP */
Log2((" + TCP: src=%d dst=%d seq=%x ack=%x\n",
RT_N2H_U16(*(uint16_t*)(pHdr)), RT_N2H_U16(*(uint16_t*)(pHdr+2)),
RT_N2H_U32(*(uint32_t*)(pHdr+4)), RT_N2H_U32(*(uint32_t*)(pHdr+8))));
uProto = 0xFF;
break;
case 17: /* UDP */
Log2((" + UDP: src=%d dst=%d\n",
RT_N2H_U16(*(uint16_t*)(pHdr)), RT_N2H_U16(*(uint16_t*)(pHdr+2))));
uProto = 0xFF;
break;
default:
Log2((" + Unknown: proto=0x%x\n", uProto));
uProto = 0xFF;
break;
}
}
Log3(("%.*Rhxd\n", cb, bPacket));
}
#else /* !DEBUG */
//# define vboxNetAdpWinDumpFilterTypes(uFlags) do { } while (0)
//# define vboxNetAdpWinDumpOffloadSettings(p) do { } while (0)
//# define vboxNetAdpWinDumpSetOffloadSettings(p) do { } while (0)
# define vboxNetAdpWinDumpPackets(m,l) do { } while (0)
# define vboxNetAdpWinDumpPacket(p,t) do { } while (0)
#endif /* !DEBUG */
DECLHIDDEN(VBOXNETADPWIN_PACKET_TYPE) vboxNetAdpWinPacketType(PINTNETSG pSG)
{
static const uint8_t g_abBcastAddr[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
AssertReturn(pSG->cbTotal >= sizeof(g_abBcastAddr), kVBoxNetAdpWinPacketType_Unicast);
AssertReturn(pSG->cSegsUsed > 0, kVBoxNetAdpWinPacketType_Unicast);
AssertReturn(pSG->aSegs[0].cb >= sizeof(g_abBcastAddr), kVBoxNetAdpWinPacketType_Unicast);
if (!memcmp(pSG->aSegs[0].pv, g_abBcastAddr, sizeof(g_abBcastAddr)))
return kVBoxNetAdpWinPacketType_Broadcast;
if ((*(uint8_t*)pSG->aSegs[0].pv) & 1)
return kVBoxNetAdpWinPacketType_Multicast;
return kVBoxNetAdpWinPacketType_Unicast;
}
DECLINLINE(void) vboxNetAdpWinUpdateStats(uint64_t *pPacketStats, uint64_t *pOctetStats, PINTNETSG pSG)
{
VBOXNETADPWIN_PACKET_TYPE enmPktType = vboxNetAdpWinPacketType(pSG);
ASMAtomicIncU64(&pPacketStats[enmPktType]);
ASMAtomicAddU64(&pOctetStats[enmPktType], pSG->cbTotal);
}
DECLINLINE(void) vboxNetAdpWinFreeMdlChain(PMDL pMdl)
{
PMDL pMdlNext;
while (pMdl)
{
pMdlNext = pMdl->Next;
PUCHAR pDataBuf;
ULONG cb = 0;
NdisQueryMdl(pMdl, &pDataBuf, &cb, NormalPagePriority);
NdisFreeMdl(pMdl);
Log4(("vboxNetAdpWinFreeMdlChain: freed MDL 0x%p\n", pMdl));
NdisFreeMemory(pDataBuf, 0, 0);
Log4(("vboxNetAdpWinFreeMdlChain: freed data buffer 0x%p\n", pDataBuf));
pMdl = pMdlNext;
}
}
DECLHIDDEN(PNET_BUFFER_LIST) vboxNetAdpWinSGtoNB(PVBOXNETADP_ADAPTER pThis, PINTNETSG pSG)
{
AssertReturn(pSG->cSegsUsed >= 1, NULL);
LogFlow(("==>vboxNetAdpWinSGtoNB: segments=%d hPool=%p cb=%u\n", pSG->cSegsUsed,
pThis->hPool, pSG->cbTotal));
AssertReturn(pThis->hPool, NULL);
PNET_BUFFER_LIST pBufList = NULL;
ULONG cbMdl = pSG->cbTotal;
ULONG uDataOffset = cbMdl - pSG->cbTotal;
PUCHAR pDataBuf = (PUCHAR)NdisAllocateMemoryWithTagPriority(pThis->hAdapter, cbMdl,
VBOXNETADP_MEM_TAG, NormalPoolPriority);
if (pDataBuf)
{
Log4(("vboxNetAdpWinSGtoNB: allocated data buffer (cb=%u) 0x%p\n", cbMdl, pDataBuf));
PMDL pMdl = NdisAllocateMdl(pThis->hAdapter, pDataBuf, cbMdl);
if (!pMdl)
{
NdisFreeMemory(pDataBuf, 0, 0);
Log4(("vboxNetAdpWinSGtoNB: freed data buffer 0x%p\n", pDataBuf));
LogError(("vboxNetAdpWinSGtoNB: failed to allocate an MDL (cb=%u)\n", cbMdl));
LogFlow(("<==vboxNetAdpWinSGtoNB: return NULL\n"));
return NULL;
}
PUCHAR pDst = pDataBuf + uDataOffset;
for (int i = 0; i < pSG->cSegsUsed; i++)
{
NdisMoveMemory(pDst, pSG->aSegs[i].pv, pSG->aSegs[i].cb);
pDst += pSG->aSegs[i].cb;
}
pBufList = NdisAllocateNetBufferAndNetBufferList(pThis->hPool,
0 /* ContextSize */,
0 /* ContextBackFill */,
pMdl,
uDataOffset,
pSG->cbTotal);
if (pBufList)
{
Log4(("vboxNetAdpWinSGtoNB: allocated NBL+NB 0x%p\n", pBufList));
pBufList->SourceHandle = pThis->hAdapter;
/** @todo Do we need to initialize anything else? */
}
else
{
LogError(("vboxNetAdpWinSGtoNB: failed to allocate an NBL+NB\n"));
vboxNetAdpWinFreeMdlChain(pMdl);
}
}
else
{
LogError(("vboxNetAdpWinSGtoNB: failed to allocate data buffer (size=%u)\n", cbMdl));
}
LogFlow(("<==vboxNetAdpWinSGtoNB: return %p\n", pBufList));
return pBufList;
}
DECLINLINE(void) vboxNetAdpWinDestroySG(PINTNETSG pSG)
{
NdisFreeMemory(pSG, 0, 0);
Log4(("vboxNetAdpWinDestroySG: freed SG 0x%p\n", pSG));
}
/**
* Worker for vboxNetAdpWinNBtoSG() that gets the max segment count needed.
* @note vboxNetAdpWinNBtoSG may use fewer depending on cbPacket and offset!
* @note vboxNetLwfWinCalcSegments() is a copy of this code.
*/
DECLINLINE(ULONG) vboxNetAdpWinCalcSegments(PNET_BUFFER pNetBuf)
{
ULONG cSegs = 0;
for (PMDL pMdl = NET_BUFFER_CURRENT_MDL(pNetBuf); pMdl; pMdl = NDIS_MDL_LINKAGE(pMdl))
{
/* Skip empty MDLs (see @bugref{9233}) */
if (MmGetMdlByteCount(pMdl))
cSegs++;
}
return cSegs;
}
/**
* @note vboxNetLwfWinNBtoSG() is a copy of this code.
*/
DECLHIDDEN(PINTNETSG) vboxNetAdpWinNBtoSG(PVBOXNETADP_ADAPTER pThis, PNET_BUFFER pNetBuf)
{
ULONG cbPacket = NET_BUFFER_DATA_LENGTH(pNetBuf);
ULONG cSegs = vboxNetAdpWinCalcSegments(pNetBuf);
/* Allocate and initialize SG */
PINTNETSG pSG = (PINTNETSG)NdisAllocateMemoryWithTagPriority(pThis->hAdapter,
RT_UOFFSETOF_DYN(INTNETSG, aSegs[cSegs]),
VBOXNETADP_MEM_TAG,
NormalPoolPriority);
AssertReturn(pSG, pSG);
Log4(("vboxNetAdpWinNBtoSG: allocated SG 0x%p\n", pSG));
IntNetSgInitTempSegs(pSG, cbPacket /*cbTotal*/, cSegs, cSegs /*cSegsUsed*/);
ULONG uOffset = NET_BUFFER_CURRENT_MDL_OFFSET(pNetBuf);
cSegs = 0;
for (PMDL pMdl = NET_BUFFER_CURRENT_MDL(pNetBuf);
pMdl != NULL && cbPacket > 0;
pMdl = NDIS_MDL_LINKAGE(pMdl))
{
ULONG cbSrc = MmGetMdlByteCount(pMdl);
if (cbSrc == 0)
continue; /* Skip empty MDLs (see @bugref{9233}) */
PUCHAR pSrc = (PUCHAR)MmGetSystemAddressForMdlSafe(pMdl, LowPagePriority);
if (!pSrc)
{
vboxNetAdpWinDestroySG(pSG);
return NULL;
}
/* Handle the offset in the current (which is the first for us) MDL */
if (uOffset)
{
if (uOffset < cbSrc)
{
pSrc += uOffset;
cbSrc -= uOffset;
uOffset = 0;
}
else
{
/* This is an invalid MDL chain */
vboxNetAdpWinDestroySG(pSG);
return NULL;
}
}
/* Do not read the last MDL beyond packet's end */
if (cbSrc > cbPacket)
cbSrc = cbPacket;
Assert(cSegs < pSG->cSegsAlloc);
pSG->aSegs[cSegs].pv = pSrc;
pSG->aSegs[cSegs].cb = cbSrc;
pSG->aSegs[cSegs].Phys = NIL_RTHCPHYS;
cSegs++;
cbPacket -= cbSrc;
}
Assert(cbPacket == 0);
Assert(cSegs <= pSG->cSegsUsed);
/* Update actual segment count in case we used fewer than anticipated. */
pSG->cSegsUsed = (uint16_t)cSegs;
return pSG;
}
DECLINLINE(bool) vboxNetAdpWinIsActive(PVBOXNETADP_ADAPTER pThis)
{
if (vboxNetAdpWinGetState(pThis) != kVBoxNetAdpWinState_Running)
return false;
if (pThis->enmTrunkState != INTNETTRUNKIFSTATE_ACTIVE)
return false;
AssertPtrReturn(pThis->pSwitchPort, false);
return true;
}
DECLHIDDEN(bool) vboxNetAdpWinForwardToIntNet(PVBOXNETADP_ADAPTER pThis, PNET_BUFFER_LIST pList, uint32_t fSrc)
{
if (!vboxNetAdpWinIsActive(pThis))
{
LogFlow(("vboxNetAdpWinForwardToIntNet: not active\n"));
return false;
}
AssertReturn(pThis->pSwitchPort, false);
AssertReturn(pThis->pSwitchPort->pfnRecv, false);
LogFlow(("==>vboxNetAdpWinForwardToIntNet\n"));
if (ASMAtomicIncS32(&pThis->cBusy) == 1)
NdisResetEvent(&pThis->EventIdle);
for (PNET_BUFFER pBuf = NET_BUFFER_LIST_FIRST_NB(pList); pBuf; pBuf = NET_BUFFER_NEXT_NB(pBuf))
{
PINTNETSG pSG = vboxNetAdpWinNBtoSG(pThis, pBuf);
if (pSG)
{
vboxNetAdpWinUpdateStats(pThis->au64StatsOutPackets, pThis->au64StatsOutOctets, pSG);
vboxNetAdpWinDumpPacket(pSG, (fSrc & INTNETTRUNKDIR_WIRE)?"intnet <-- wire":"intnet <-- host");
pThis->pSwitchPort->pfnRecv(pThis->pSwitchPort, NULL, pSG, fSrc);
vboxNetAdpWinDestroySG(pSG);
}
}
if (ASMAtomicDecS32(&pThis->cBusy) == 0)
NdisSetEvent(&pThis->EventIdle);
return true;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnRetain
*/
static DECLCALLBACK(void) vboxNetAdpWinPortRetain(PINTNETTRUNKIFPORT pIfPort)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
RT_NOREF1(pThis);
LogFlow(("vboxNetAdpWinPortRetain: pThis=%p, pIfPort=%p\n", pThis, pIfPort));
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnRelease
*/
static DECLCALLBACK(void) vboxNetAdpWinPortRelease(PINTNETTRUNKIFPORT pIfPort)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
RT_NOREF1(pThis);
LogFlow(("vboxNetAdpWinPortRelease: pThis=%p, pIfPort=%p\n", pThis, pIfPort));
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnDisconnectAndRelease
*/
static DECLCALLBACK(void) vboxNetAdpWinPortDisconnectAndRelease(PINTNETTRUNKIFPORT pIfPort)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
LogFlow(("vboxNetAdpWinPortDisconnectAndRelease: pThis=%p, pIfPort=%p\n", pThis, pIfPort));
/*
* Serious paranoia.
*/
AssertPtr(pThis);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
Assert(pThis->MyPort.u32VersionEnd == INTNETTRUNKIFPORT_VERSION);
AssertPtr(pThis->pGlobals);
Assert(pThis->szName[0]);
AssertPtr(pThis->pSwitchPort);
Assert(pThis->enmTrunkState == INTNETTRUNKIFSTATE_DISCONNECTING);
pThis->pSwitchPort = NULL;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnSetState
*/
static DECLCALLBACK(INTNETTRUNKIFSTATE) vboxNetAdpWinPortSetState(PINTNETTRUNKIFPORT pIfPort, INTNETTRUNKIFSTATE enmState)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
INTNETTRUNKIFSTATE enmOldTrunkState;
LogFlow(("vboxNetAdpWinPortSetState: pThis=%p, pIfPort=%p, enmState=%d\n", pThis, pIfPort, enmState));
/*
* Input validation.
*/
AssertPtr(pThis);
AssertPtr(pThis->pGlobals);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
AssertPtrReturn(pThis->pSwitchPort, INTNETTRUNKIFSTATE_INVALID);
AssertReturn(enmState > INTNETTRUNKIFSTATE_INVALID && enmState < INTNETTRUNKIFSTATE_END,
INTNETTRUNKIFSTATE_INVALID);
enmOldTrunkState = pThis->enmTrunkState;
if (enmOldTrunkState != enmState)
ASMAtomicWriteU32((uint32_t volatile *)&pThis->enmTrunkState, enmState);
return enmOldTrunkState;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnWaitForIdle
*/
static DECLCALLBACK(int) vboxNetAdpWinPortWaitForIdle(PINTNETTRUNKIFPORT pIfPort, uint32_t cMillies)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
int rc;
LogFlow(("vboxNetAdpWinPortWaitForIdle: pThis=%p, pIfPort=%p, cMillies=%u\n", pThis, pIfPort, cMillies));
/*
* Input validation.
*/
AssertPtr(pThis);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
AssertPtrReturn(pThis->pSwitchPort, VERR_INVALID_STATE);
AssertReturn(pThis->enmTrunkState == INTNETTRUNKIFSTATE_DISCONNECTING, VERR_INVALID_STATE);
rc = NdisWaitEvent(&pThis->EventIdle, cMillies) ? VINF_SUCCESS : VERR_TIMEOUT;
return rc;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnXmit
*/
static DECLCALLBACK(int) vboxNetAdpWinPortXmit(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PINTNETSG pSG, uint32_t fDst)
{
RT_NOREF1(fDst);
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
int rc = VINF_SUCCESS;
LogFlow(("vboxNetAdpWinPortXmit: pThis=%p, pIfPort=%p, pvIfData=%p, pSG=%p, fDst=0x%x\n", pThis, pIfPort, pvIfData, pSG, fDst));
RT_NOREF1(pvIfData);
/*
* Input validation.
*/
AssertPtr(pThis);
AssertPtr(pSG);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
AssertPtrReturn(pThis->pSwitchPort, VERR_INVALID_STATE);
vboxNetAdpWinDumpPacket(pSG, "intnet --> host");
/*
* First of all, indicate we are busy. It is possible the trunk or the adapter
* will get paused or even disconnected, so we need to check the state after
* we have marked ourselves busy.
* Later, when NDIS returns all buffers, we will mark ourselves idle.
*/
if (ASMAtomicIncS32(&pThis->cBusy) == 1)
NdisResetEvent(&pThis->EventIdle);
if (vboxNetAdpWinIsActive(pThis))
{
PNET_BUFFER_LIST pBufList = vboxNetAdpWinSGtoNB(pThis, pSG);
if (pBufList)
{
NdisMIndicateReceiveNetBufferLists(pThis->hAdapter, pBufList, NDIS_DEFAULT_PORT_NUMBER, 1, 0);
vboxNetAdpWinUpdateStats(pThis->au64StatsInPackets, pThis->au64StatsInOctets, pSG);
}
}
return rc;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnNotifyMacAddress
*/
static DECLCALLBACK(void) vboxNetAdpWinPortNotifyMacAddress(PINTNETTRUNKIFPORT pIfPort, void *pvIfData, PCRTMAC pMac)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
LogFlow(("vboxNetAdpWinPortNotifyMacAddress: pThis=%p, pIfPort=%p, pvIfData=%p, pMac=%p\n", pThis, pIfPort, pvIfData, pMac));
RT_NOREF3(pThis, pvIfData, pMac);
/*
* Input validation.
*/
AssertPtr(pThis);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
/// @todo Do we really need to handle this?
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnConnectInterface
*/
static DECLCALLBACK(int) vboxNetAdpWinPortConnectInterface(PINTNETTRUNKIFPORT pIfPort, void *pvIf, void **ppvIfData)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
int rc;
LogFlow(("vboxNetAdpWinPortConnectInterface: pThis=%p, pIfPort=%p, pvIf=%p, ppvIfData=%p\n", pThis, pIfPort, pvIf, ppvIfData));
RT_NOREF3(pThis, pvIf, ppvIfData);
/*
* Input validation.
*/
AssertPtr(pThis);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
rc = VINF_SUCCESS;
return rc;
}
/**
* @copydoc INTNETTRUNKIFPORT::pfnDisconnectInterface
*/
static DECLCALLBACK(void) vboxNetAdpWinPortDisconnectInterface(PINTNETTRUNKIFPORT pIfPort, void *pvIfData)
{
PVBOXNETADP_ADAPTER pThis = IFPORT_2_VBOXNETADP_ADAPTER(pIfPort);
int rc;
LogFlow(("vboxNetAdpWinPortDisconnectInterface: pThis=%p, pIfPort=%p, pvIfData=%p\n", pThis, pIfPort, pvIfData));
RT_NOREF2(pThis, pvIfData);
/*
* Input validation.
*/
AssertPtr(pThis);
Assert(pThis->MyPort.u32Version == INTNETTRUNKIFPORT_VERSION);
rc = VINF_SUCCESS;
AssertRC(rc);
}
/**
* Implements the SUPDRV component factor interface query method.
*
* @returns Pointer to an interface. NULL if not supported.
*
* @param pSupDrvFactory Pointer to the component factory registration structure.
* @param pSession The session - unused.
* @param pszInterfaceUuid The factory interface id.
*/
static DECLCALLBACK(void *) vboxNetAdpWinQueryFactoryInterface(PCSUPDRVFACTORY pSupDrvFactory, PSUPDRVSESSION pSession,
const char *pszInterfaceUuid)
{
PVBOXNETADPGLOBALS pGlobals = (PVBOXNETADPGLOBALS)((uint8_t *)pSupDrvFactory - RT_UOFFSETOF(VBOXNETADPGLOBALS, SupDrvFactory));
/*
* Convert the UUID strings and compare them.
*/
RTUUID UuidReq;
int rc = RTUuidFromStr(&UuidReq, pszInterfaceUuid);
if (RT_SUCCESS(rc))
{
if (!RTUuidCompareStr(&UuidReq, INTNETTRUNKFACTORY_UUID_STR))
{
NdisAcquireSpinLock(&pGlobals->Lock);
if (pGlobals->enmIdcState == kVBoxNetAdpWinIdcState_Connected)
{
pGlobals->cFactoryRefs++;
NdisResetEvent(&pGlobals->EventUnloadAllowed);
}
NdisReleaseSpinLock(&pGlobals->Lock);
return &pGlobals->TrunkFactory;
}
#ifdef LOG_ENABLED
else
Log(("VBoxNetFlt: unknown factory interface query (%s)\n", pszInterfaceUuid));
#endif
}
else
Log(("VBoxNetFlt: rc=%Rrc, uuid=%s\n", rc, pszInterfaceUuid));
RT_NOREF1(pSession);
return NULL;
}
DECLHIDDEN(void) vboxNetAdpWinReportCapabilities(PVBOXNETADP_ADAPTER pThis)
{
if (pThis->pSwitchPort)
{
pThis->pSwitchPort->pfnReportMacAddress(pThis->pSwitchPort, &pThis->MacAddr);
/* Promiscuous mode makes no sense for host-only adapters, does it? */
pThis->pSwitchPort->pfnReportGsoCapabilities(pThis->pSwitchPort, 0,
INTNETTRUNKDIR_WIRE | INTNETTRUNKDIR_HOST);
pThis->pSwitchPort->pfnReportNoPreemptDsts(pThis->pSwitchPort, 0 /* none */);
}
}
/**
* @copydoc INTNETTRUNKFACTORY::pfnCreateAndConnect
*/
static DECLCALLBACK(int) vboxNetAdpWinFactoryCreateAndConnect(PINTNETTRUNKFACTORY pIfFactory, const char *pszName,
PINTNETTRUNKSWPORT pSwitchPort, uint32_t fFlags,
PINTNETTRUNKIFPORT *ppIfPort)
{
PVBOXNETADPGLOBALS pGlobals = (PVBOXNETADPGLOBALS)((uint8_t *)pIfFactory - RT_UOFFSETOF(VBOXNETADPGLOBALS, TrunkFactory));
LogFlow(("==>vboxNetAdpWinFactoryCreateAndConnect: pszName=%p:{%s} fFlags=%#x\n", pszName, pszName, fFlags));
Assert(pGlobals->cFactoryRefs > 0);
AssertMsgReturn(!(fFlags & ~(INTNETTRUNKFACTORY_FLAG_NO_PROMISC)),
("%#x\n", fFlags), VERR_INVALID_PARAMETER);
DbgPrint("vboxNetAdpWinFactoryCreateAndConnect: looking for %s...\n", pszName);
PVBOXNETADP_ADAPTER pAdapter = NULL;
NdisAcquireSpinLock(&pGlobals->Lock);
RTListForEach(&g_VBoxNetAdpGlobals.ListOfAdapters, pAdapter, VBOXNETADP_ADAPTER, node)
{
Log(("vboxNetAdpWinFactoryCreateAndConnect: evaluating adapter=%s\n", pAdapter->szName));
DbgPrint("vboxNetAdpWinFactoryCreateAndConnect: evaluating %s...\n", pAdapter->szName);
if (!RTStrICmp(pszName, pAdapter->szName))
{
pAdapter->pSwitchPort = pSwitchPort;
*ppIfPort = &pAdapter->MyPort;
NdisReleaseSpinLock(&g_VBoxNetAdpGlobals.Lock); /// @todo too early? adp should have been connected by the time we do this
Log(("vboxNetAdpWinFactoryCreateAndConnect: found matching adapter, name=%s\n", pszName));
vboxNetAdpWinReportCapabilities(pAdapter);
/// @todo I guess there is no need in vboxNetAdpWinRegisterIpAddrNotifier(pThis);
LogFlow(("<==vboxNetAdpWinFactoryCreateAndConnect: return VINF_SUCCESS\n"));
return VINF_SUCCESS;
}
}
NdisReleaseSpinLock(&pGlobals->Lock);
/// @todo vboxNetAdpLogErrorEvent(IO_ERR_INTERNAL_ERROR, STATUS_SUCCESS, 6);
DbgPrint("vboxNetAdpWinFactoryCreateAndConnect: could not find %s\n", pszName);
LogFlow(("<==vboxNetAdpWinFactoryCreateAndConnect: return VERR_INTNET_FLT_IF_NOT_FOUND\n"));
return VERR_INTNET_FLT_IF_NOT_FOUND;
}
/**
* @copydoc INTNETTRUNKFACTORY::pfnRelease
*/
static DECLCALLBACK(void) vboxNetAdpWinFactoryRelease(PINTNETTRUNKFACTORY pIfFactory)
{
PVBOXNETADPGLOBALS pGlobals = (PVBOXNETADPGLOBALS)((uint8_t *)pIfFactory - RT_OFFSETOF(VBOXNETADPGLOBALS, TrunkFactory));
NdisAcquireSpinLock(&pGlobals->Lock);
int32_t cRefs = ASMAtomicDecS32(&pGlobals->cFactoryRefs);
if (cRefs == 0)
NdisSetEvent(&pGlobals->EventUnloadAllowed);
NdisReleaseSpinLock(&pGlobals->Lock);
Assert(cRefs >= 0); NOREF(cRefs);
LogFlow(("vboxNetAdpWinFactoryRelease: cRefs=%d (new)\n", cRefs));
}
/* IDC */
DECLINLINE(const char *) vboxNetAdpWinIdcStateToText(uint32_t enmState)
{
switch (enmState)
{
case kVBoxNetAdpWinIdcState_Disconnected: return "Disconnected";
case kVBoxNetAdpWinIdcState_Connecting: return "Connecting";
case kVBoxNetAdpWinIdcState_Connected: return "Connected";
case kVBoxNetAdpWinIdcState_Stopping: return "Stopping";
}
return "Unknown";
}
static VOID vboxNetAdpWinInitIdcWorker(PVOID pvContext)
{
int rc;
PVBOXNETADPGLOBALS pGlobals = (PVBOXNETADPGLOBALS)pvContext;
/*
* Note that we break the rules here and access IDC state wihout acquiring
* the lock. This is ok because vboxNetAdpWinUnload will wait for this
* thread to terminate itself and we always use atomic access to IDC state.
* We check the state (while holding the lock) further when we have succeeded
* to connect. We cannot take the lock here and release it later as we will
* be holding it for too long.
*/
while (ASMAtomicReadU32(&pGlobals->enmIdcState) == kVBoxNetAdpWinIdcState_Connecting)
{
/*
* Establish a connection to SUPDRV and register our component factory.
*/
rc = SUPR0IdcOpen(&pGlobals->SupDrvIDC, 0 /* iReqVersion = default */, 0 /* iMinVersion = default */, NULL, NULL, NULL);
if (RT_SUCCESS(rc))
{
rc = SUPR0IdcComponentRegisterFactory(&pGlobals->SupDrvIDC, &pGlobals->SupDrvFactory);
if (RT_SUCCESS(rc))
{
/*
* At this point we should take the lock to access IDC state as
* we technically may now race with factory methods.
*/
NdisAcquireSpinLock(&pGlobals->Lock);
bool fSuccess = ASMAtomicCmpXchgU32(&pGlobals->enmIdcState,
kVBoxNetAdpWinIdcState_Connected,
kVBoxNetAdpWinIdcState_Connecting);
NdisReleaseSpinLock(&pGlobals->Lock);
if (!fSuccess)
{
/* The state has been changed (the only valid transition is to "Stopping"), undo init */
rc = SUPR0IdcComponentDeregisterFactory(&pGlobals->SupDrvIDC, &pGlobals->SupDrvFactory);
AssertRC(rc);
SUPR0IdcClose(&pGlobals->SupDrvIDC);
Log(("vboxNetAdpWinInitIdcWorker: state change (Connecting -> %s) while initializing IDC, closed IDC, rc=0x%x\n",
vboxNetAdpWinIdcStateToText(ASMAtomicReadU32(&pGlobals->enmIdcState)), rc));
}
else
{
Log(("vboxNetAdpWinInitIdcWorker: IDC state change Connecting -> Connected\n"));
}
}
}
else
{
LARGE_INTEGER WaitIn100nsUnits;
WaitIn100nsUnits.QuadPart = -(LONGLONG)5000000; /* 0.5 sec */
KeDelayExecutionThread(KernelMode, FALSE /* non-alertable */, &WaitIn100nsUnits);
}
}
PsTerminateSystemThread(STATUS_SUCCESS);
}