366 lines
12 KiB
C++
366 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////
|
|
// $Id: eth_win32.cc,v 1.25 2005-12-10 18:37:35 vruppert Exp $
|
|
/////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (C) 2001 MandrakeSoft S.A.
|
|
//
|
|
// MandrakeSoft S.A.
|
|
// 43, rue d'Aboukir
|
|
// 75002 Paris - France
|
|
// http://www.linux-mandrake.com/
|
|
// http://www.mandrakesoft.com/
|
|
//
|
|
// This library is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public
|
|
// License as published by the Free Software Foundation; either
|
|
// version 2 of the License, or (at your option) any later version.
|
|
//
|
|
// This library 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
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
//
|
|
// eth_win32.cc - packet mover for win32
|
|
// All win32 coding by Don Becker <x-odus@iname.com>
|
|
// with patches from various sources
|
|
//
|
|
// Various networking docs:
|
|
// http://www.graphcomp.com/info/rfc/
|
|
// rfc0826: arp
|
|
// rfc0903: rarp
|
|
//
|
|
// For ethernet support under win32 to work, you must install WinPCap.
|
|
// Download it from http://netgroup-serv.polito.it/winpcap
|
|
|
|
// Define BX_PLUGGABLE in files that can be compiled into plugins. For
|
|
// platforms that require a special tag on exported symbols, BX_PLUGGABLE
|
|
// is used to know when we are exporting symbols and when we are importing.
|
|
#define BX_PLUGGABLE
|
|
|
|
#define NO_DEVICE_INCLUDES
|
|
#include "iodev.h"
|
|
|
|
#if BX_NETWORKING && defined(ETH_WIN32)
|
|
|
|
#include "eth.h"
|
|
|
|
// windows.h included by bochs.h
|
|
#define LOG_THIS bx_devices.pluginNE2kDevice->
|
|
|
|
#define NDIS_PACKET_TYPE_PROMISCUOUS 0x0020
|
|
#define Packet_ALIGNMENT sizeof(int)
|
|
#define Packet_WORDALIGN(x) (((x)+(Packet_ALIGNMENT-1))&~(Packet_ALIGNMENT-1))
|
|
|
|
typedef int bpf_int32;
|
|
typedef u_int bpf_u_int32;
|
|
|
|
/*
|
|
* The instruction encondings.
|
|
*/
|
|
|
|
/* instruction classes */
|
|
|
|
#define BPF_CLASS(code) ((code) & 0x07)
|
|
#define BPF_LD 0x00
|
|
#define BPF_LDX 0x01
|
|
#define BPF_ST 0x02
|
|
#define BPF_STX 0x03
|
|
#define BPF_ALU 0x04
|
|
#define BPF_JMP 0x05
|
|
#define BPF_RET 0x06
|
|
#define BPF_MISC 0x07
|
|
|
|
/* ld/ldx fields */
|
|
#define BPF_SIZE(code) ((code) & 0x18)
|
|
#define BPF_W 0x00
|
|
#define BPF_H 0x08
|
|
#define BPF_B 0x10
|
|
#define BPF_MODE(code) ((code) & 0xe0)
|
|
#define BPF_IMM 0x00
|
|
#define BPF_ABS 0x20
|
|
#define BPF_IND 0x40
|
|
#define BPF_MEM 0x60
|
|
#define BPF_LEN 0x80
|
|
#define BPF_MSH 0xa0
|
|
|
|
/* alu/jmp fields */
|
|
#define BPF_OP(code) ((code) & 0xf0)
|
|
#define BPF_ADD 0x00
|
|
#define BPF_SUB 0x10
|
|
#define BPF_MUL 0x20
|
|
#define BPF_DIV 0x30
|
|
#define BPF_OR 0x40
|
|
#define BPF_AND 0x50
|
|
#define BPF_LSH 0x60
|
|
#define BPF_RSH 0x70
|
|
#define BPF_NEG 0x80
|
|
#define BPF_JA 0x00
|
|
#define BPF_JEQ 0x10
|
|
#define BPF_JGT 0x20
|
|
#define BPF_JGE 0x30
|
|
#define BPF_JSET 0x40
|
|
#define BPF_SRC(code) ((code) & 0x08)
|
|
#define BPF_K 0x00
|
|
#define BPF_X 0x08
|
|
|
|
/* ret - BPF_K and BPF_X also apply */
|
|
#define BPF_RVAL(code) ((code) & 0x18)
|
|
#define BPF_A 0x10
|
|
|
|
/* misc */
|
|
#define BPF_MISCOP(code) ((code) & 0xf8)
|
|
#define BPF_TAX 0x00
|
|
#define BPF_TXA 0x80
|
|
|
|
#define BPF_STMT(code, k) { (u_short)(code), 0, 0, k }
|
|
#define BPF_JUMP(code, k, jt, jf) { (u_short)(code), jt, jf, k }
|
|
|
|
/*
|
|
* The instruction data structure.
|
|
*/
|
|
struct bpf_insn {
|
|
u_short code;
|
|
u_char jt;
|
|
u_char jf;
|
|
bpf_int32 k;
|
|
};
|
|
|
|
struct bpf_program {
|
|
u_int bf_len;
|
|
struct bpf_insn *bf_insns;
|
|
};
|
|
|
|
struct bpf_hdr {
|
|
struct timeval bh_tstamp; /* time stamp */
|
|
UINT bh_caplen; /* length of captured portion */
|
|
UINT bh_datalen; /* original length of packet */
|
|
USHORT bh_hdrlen; /* length of bpf header (this struct
|
|
plus alignment padding) */
|
|
};
|
|
|
|
#define MAX_LINK_NAME_LENGTH 64
|
|
|
|
// Why don't these definitions come from including winpcap.h or something?
|
|
// -Bryce
|
|
typedef struct _ADAPTER {
|
|
HANDLE hFile;
|
|
TCHAR SymbolicLink[MAX_LINK_NAME_LENGTH];
|
|
int NumWrites;
|
|
HANDLE ReadEvent;
|
|
UINT ReadTimeOut; // WARNING: maybe invalid before winpcap 2.2
|
|
} ADAPTER, *LPADAPTER;
|
|
|
|
typedef struct _PACKET {
|
|
HANDLE hEvent;
|
|
OVERLAPPED OverLapped;
|
|
PVOID Buffer;
|
|
UINT Length;
|
|
UINT ulBytesReceived;
|
|
BOOLEAN bIoComplete;
|
|
} PACKET, *LPPACKET;
|
|
|
|
HINSTANCE hPacket;
|
|
LPADAPTER lpAdapter = 0;
|
|
LPPACKET pkSend;
|
|
LPPACKET pkRecv;
|
|
char buffer[256000];
|
|
DWORD dwVersion, dwMajorVersion;
|
|
char AdapterList[10][1024];
|
|
char cMacAddr[6];
|
|
void *rx_Arg;
|
|
char netdev[512];
|
|
BOOL IsNT = FALSE;
|
|
|
|
eth_rx_handler_t rx_handler;
|
|
|
|
LPADAPTER (*PacketOpenAdapter) (LPTSTR);
|
|
VOID (*PacketCloseAdapter) (LPADAPTER);
|
|
BOOLEAN (*PacketSetHwFilter) (LPADAPTER, ULONG);
|
|
BOOLEAN (*PacketSetBpf) (LPADAPTER, struct bpf_program *);
|
|
BOOLEAN (*PacketGetAdapterNames) (PTSTR, PULONG);
|
|
BOOLEAN (*PacketSendPacket) (LPADAPTER, LPPACKET, BOOLEAN);
|
|
BOOLEAN (*PacketReceivePacket) (LPADAPTER, LPPACKET, BOOLEAN);
|
|
BOOLEAN (*PacketSetBuff) (LPADAPTER, int);
|
|
BOOLEAN (*PacketSetReadTimeout) (LPADAPTER, int);
|
|
LPPACKET (*PacketAllocatePacket) (void);
|
|
VOID (*PacketInitPacket) (LPPACKET, PVOID, UINT);
|
|
VOID (*PacketFreePacket) (LPPACKET);
|
|
|
|
// template filter for a unicast mac address and all
|
|
// multicast/broadcast frames
|
|
static const struct bpf_insn macfilter[] = {
|
|
BPF_STMT(BPF_LD|BPF_W|BPF_ABS, 2),
|
|
BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, 0xaaaaaaaa, 0, 2),
|
|
BPF_STMT(BPF_LD|BPF_H|BPF_ABS, 0),
|
|
BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, 0x0000aaaa, 2, 0),
|
|
BPF_STMT(BPF_LD|BPF_B|BPF_ABS, 0),
|
|
BPF_JUMP(BPF_JMP|BPF_JSET|BPF_K, 0x01, 0, 1),
|
|
BPF_STMT(BPF_RET, 1514),
|
|
BPF_STMT(BPF_RET, 0),
|
|
};
|
|
|
|
//
|
|
// Define the class. This is private to this module
|
|
//
|
|
class bx_win32_pktmover_c : public eth_pktmover_c {
|
|
public:
|
|
bx_win32_pktmover_c(const char *netif, const char *macaddr,
|
|
eth_rx_handler_t rxh, void *rxarg, char *script);
|
|
void sendpkt(void *buf, unsigned io_len);
|
|
private:
|
|
struct bpf_insn filter[8];
|
|
int rx_timer_index;
|
|
static void rx_timer_handler(void *);
|
|
};
|
|
|
|
//
|
|
// Define the static class that registers the derived pktmover class,
|
|
// and allocates one on request.
|
|
//
|
|
class bx_win32_locator_c : public eth_locator_c {
|
|
public:
|
|
bx_win32_locator_c(void) : eth_locator_c("win32") {}
|
|
protected:
|
|
eth_pktmover_c *allocate(const char *netif, const char *macaddr,
|
|
eth_rx_handler_t rxh,
|
|
void *rxarg, char *script) {
|
|
return (new bx_win32_pktmover_c(netif, macaddr, rxh, rxarg, script));
|
|
}
|
|
} bx_win32_match;
|
|
|
|
//
|
|
// Define the methods for the bx_win32_pktmover derived class
|
|
//
|
|
|
|
// the constructor
|
|
bx_win32_pktmover_c::bx_win32_pktmover_c(const char *netif,
|
|
const char *macaddr,
|
|
eth_rx_handler_t rxh,
|
|
void *rxarg,
|
|
char *script)
|
|
{
|
|
// Open Packet Driver Here.
|
|
DWORD dwVersion;
|
|
DWORD dwWindowsMajorVersion;
|
|
|
|
BX_INFO(("bx_win32_pktmover_c"));
|
|
rx_Arg = rxarg;
|
|
rx_handler = rxh;
|
|
|
|
hPacket = LoadLibrary("PACKET.DLL");
|
|
memcpy(cMacAddr, macaddr, 6);
|
|
if(hPacket) {
|
|
PacketOpenAdapter = (LPADAPTER (*)(LPTSTR)) GetProcAddress(hPacket, "PacketOpenAdapter");
|
|
PacketCloseAdapter = (VOID (*)(LPADAPTER)) GetProcAddress(hPacket, "PacketCloseAdapter");
|
|
PacketSetHwFilter = (BOOLEAN (*)(LPADAPTER, ULONG)) GetProcAddress(hPacket, "PacketSetHwFilter");
|
|
PacketSetBpf = (BOOLEAN (*)(LPADAPTER, struct bpf_program *)) GetProcAddress(hPacket, "PacketSetBpf");
|
|
PacketGetAdapterNames = (BOOLEAN (*)(PTSTR, PULONG)) GetProcAddress(hPacket, "PacketGetAdapterNames");
|
|
PacketSendPacket = (BOOLEAN (*)(LPADAPTER, LPPACKET, BOOLEAN)) GetProcAddress(hPacket, "PacketSendPacket");
|
|
PacketReceivePacket = (BOOLEAN (*)(LPADAPTER, LPPACKET, BOOLEAN)) GetProcAddress(hPacket, "PacketReceivePacket");
|
|
PacketSetBuff = (BOOLEAN (*)(LPADAPTER, int)) GetProcAddress(hPacket, "PacketSetBuff");
|
|
PacketSetReadTimeout = (BOOLEAN (*)(LPADAPTER, int)) GetProcAddress(hPacket, "PacketSetReadTimeout");
|
|
PacketAllocatePacket = (LPPACKET (*)(void)) GetProcAddress(hPacket, "PacketAllocatePacket");
|
|
PacketInitPacket = (VOID (*)(LPPACKET, PVOID, UINT)) GetProcAddress(hPacket, "PacketInitPacket");
|
|
PacketFreePacket = (VOID (*)(LPPACKET)) GetProcAddress(hPacket, "PacketFreePacket");
|
|
} else {
|
|
BX_PANIC(("Could not load WPCap Drivers for ethernet support!"));
|
|
}
|
|
|
|
memset(&netdev, 0, sizeof(netdev));
|
|
dwVersion=GetVersion();
|
|
dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
|
|
if (!(dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4))
|
|
{ // Windows NT/2k
|
|
int nLen = MultiByteToWideChar(CP_ACP, 0, netif, -1, NULL, 0);
|
|
MultiByteToWideChar(CP_ACP, 0, netif, -1, (WCHAR *)netdev, nLen);
|
|
IsNT = TRUE;
|
|
} else { // Win9x
|
|
strcpy(netdev, netif);
|
|
}
|
|
|
|
lpAdapter = PacketOpenAdapter(netdev);
|
|
if(!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE)) {
|
|
BX_PANIC(("Could not open adapter for ethernet reception"));
|
|
return;
|
|
}
|
|
PacketSetHwFilter(lpAdapter, NDIS_PACKET_TYPE_PROMISCUOUS);
|
|
|
|
/* The code below sets a BPF mac address filter
|
|
that seems to really kill performance, for now
|
|
im just using code to filter, and it works
|
|
better
|
|
*/
|
|
|
|
// memcpy(&this->filter, macfilter, sizeof(macfilter));
|
|
// this->filter[1].k = (macaddr[2] & 0xff) << 24 | (macaddr[3] & 0xff) << 16 | (macaddr[4] & 0xff) << 8 | (macaddr[5] & 0xff);
|
|
// this->filter[3].k = (macaddr[0] & 0xff) << 8 | (macaddr[1] & 0xff);
|
|
// bp.bf_len = 8;
|
|
// bp.bf_insns = &this->filter[0];
|
|
// if(!PacketSetBpf(lpAdapter, &bp)) {
|
|
// BX_PANIC(("Could not set mac address BPF filter"));
|
|
// }
|
|
|
|
PacketSetBuff(lpAdapter, 512000);
|
|
PacketSetReadTimeout(lpAdapter, -1);
|
|
|
|
if((pkSend = PacketAllocatePacket()) == NULL) {
|
|
BX_PANIC(("Could not allocate a send packet"));
|
|
}
|
|
|
|
if((pkRecv = PacketAllocatePacket()) == NULL) {
|
|
BX_PANIC(("Could not allocate a recv packet"));
|
|
}
|
|
rx_timer_index = bx_pc_system.register_timer(this, this->rx_timer_handler, 10000, 1, 1, "eth_win32");
|
|
}
|
|
|
|
void
|
|
bx_win32_pktmover_c::sendpkt(void *buf, unsigned io_len)
|
|
{
|
|
// SendPacket Here.
|
|
//fprintf(stderr, "[ETH-WIN32] Sending Packet: size=%i\n", io_len);
|
|
PacketInitPacket(pkSend, (char *)buf, io_len);
|
|
|
|
if(!PacketSendPacket(lpAdapter, pkSend, TRUE)) {
|
|
fprintf(stderr, "[ETH-WIN32] Error sending packet: %lu\n", GetLastError());
|
|
}
|
|
}
|
|
|
|
void bx_win32_pktmover_c::rx_timer_handler (void *this_ptr)
|
|
{
|
|
// Recieve Packet ????
|
|
char *pBuf;
|
|
unsigned char *pPacket;
|
|
unsigned int iOffset = 0;
|
|
struct bpf_hdr *hdr;
|
|
int pktlen;
|
|
PacketInitPacket(pkRecv, (char *)buffer, 256000);
|
|
//fprintf(stderr, "[ETH-WIN32] poll packet\n");
|
|
if (WaitForSingleObject(lpAdapter->ReadEvent,0) == WAIT_OBJECT_0 || IsNT) {
|
|
PacketReceivePacket(lpAdapter, pkRecv, TRUE);
|
|
pBuf = (char *)pkRecv->Buffer;
|
|
iOffset = 0;
|
|
while(iOffset < pkRecv->ulBytesReceived)
|
|
{
|
|
hdr = (struct bpf_hdr *)(pBuf + iOffset);
|
|
pPacket = (unsigned char *)(pBuf + iOffset + hdr->bh_hdrlen);
|
|
if (memcmp(pPacket + 6, cMacAddr, 6) != 0) // src field != ours
|
|
{
|
|
if(memcmp(pPacket, cMacAddr, 6) == 0 || memcmp(pPacket, broadcast_macaddr, 6) == 0)
|
|
{
|
|
//fprintf(stderr, "[ETH-WIN32] RX packet: size=%i, dst=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, src=%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", hdr->bh_caplen, pPacket[0], pPacket[1], pPacket[2], pPacket[3], pPacket[4], pPacket[5], pPacket[6], pPacket[7], pPacket[8], pPacket[9], pPacket[10], pPacket[11]);
|
|
pktlen = hdr->bh_caplen;
|
|
if (pktlen < 60) pktlen = 60;
|
|
(*rx_handler)(rx_Arg, pPacket, pktlen);
|
|
}
|
|
}
|
|
iOffset = Packet_WORDALIGN(iOffset + (hdr->bh_hdrlen + hdr->bh_caplen));
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif /* if BX_NETWORKING && defined ETH_WIN32 */
|