slirp.c revision fd98a1c6f10aebcf3f9bf7590342a89aec3c2820
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#include "slirp.h"
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef RT_OS_OS2
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# include <paths.h>
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/* disable these counters for the final release */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/* #define VBOX_WITHOUT_RELEASE_STATISTICS */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#include <VBox/err.h>
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#include <VBox/pdmdrv.h>
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#include <iprt/assert.h>
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#if !defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) || !defined(RT_OS_WINDOWS)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_ENGAGE_EVENT1(so, fdset, label) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FD_SET((so)->s, (fdset)); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync UPD_NFDS((so)->s); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while(0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_ENGAGE_EVENT2(so, fdset1, fdset2, label) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FD_SET((so)->s, (fdset1)); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FD_SET((so)->s, (fdset2)); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync UPD_NFDS((so)->s); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while(0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_POLL_EVENTS(rc, error, so, events, label) do {} while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define DO_CHECK_FD_SET(so, events, fdset) (FD_ISSET((so)->s, (fdset)))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# ifdef VBOX_WITH_SLIRP_ICMP
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define ICMP_ENGAGE_EVENT(so, fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (pData->icmp_socket.s != -1) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_ENGAGE_EVENT1((so), (fdset), ICMP); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# else /* !VBOX_WITH_SLIRP_ICMP */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define ICMP_ENGAGE_EVENT(so, fdset) do {} while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# endif /* !VBOX_WITH_SLIRP_ICMP */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#else /* defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS) */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/*
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * On Windows, we will be notified by IcmpSendEcho2() when the response arrives.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * So no call to WSAEventSelect necessary.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define ICMP_ENGAGE_EVENT(so, fdset) do {} while(0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_ENGAGE_EVENT1(so, fdset1, label) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync rc = WSAEventSelect((so)->s, VBOX_SOCKET_EVENT, FD_ALL_EVENTS); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (rc == SOCKET_ERROR) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* This should not happen */ \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync error = WSAGetLastError(); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("WSAEventSelector (" #label ") error %d (so=%x, socket=%s, event=%x)\n", \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync error, (so), (so)->s, VBOX_SOCKET_EVENT)); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while(0); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync continue
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_ENGAGE_EVENT2(so, fdset1, fdset2, label) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_ENGAGE_EVENT1((so), (fdset1), label)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_POLL_EVENTS(rc, error, so, events, label) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync (rc) = WSAEnumNetworkEvents((so)->s, VBOX_SOCKET_EVENT, (events)); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if ((rc) == SOCKET_ERROR) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync (error) = WSAGetLastError(); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("WSAEnumNetworkEvents " #label " error %d\n", (error))); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync continue; \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define readfds_win FD_READ
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define readfds_win_bit FD_READ_BIT
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define writefds_win FD_WRITE
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define writefds_win_bit FD_WRITE_BIT
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define xfds_win FD_OOB
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define xfds_win_bit FD_OOB_BIT
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_CHECK_FD_SET(so, events, fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync (((events).lNetworkEvents & fdset ## _win) && ((events).iErrorCode[fdset ## _win_bit] == 0))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif /* defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS) */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define TCP_ENGAGE_EVENT1(so, fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_ENGAGE_EVENT1((so), (fdset), TCP)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define TCP_ENGAGE_EVENT2(so, fdset1, fdset2) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_ENGAGE_EVENT2((so), (fdset1), (fdset2), TCP)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define UDP_ENGAGE_EVENT(so, fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_ENGAGE_EVENT1((so), (fdset), UDP)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define POLL_TCP_EVENTS(rc, error, so, events) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_POLL_EVENTS((rc), (error), (so), (events), TCP)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define POLL_UDP_EVENTS(rc, error, so, events) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DO_POLL_EVENTS((rc), (error), (so), (events), UDP)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define CHECK_FD_SET(so, events, set) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync (DO_CHECK_FD_SET((so), (events), set))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/*
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * Loging macros
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#if VBOX_WITH_DEBUG_NAT_SOCKETS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_LOG_NAT_SOCK(so, proto, winevent, r_fdset, w_fdset, x_fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel((" " #proto "%R[natsock] %R[natwinnetevents]\n", (so), (winevent))); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_LOG_NAT_SOCK(so, proto, winevent, r_fdset, w_fdset, x_fdset) \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync do { \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel((" " #proto " %R[natsock] %s %s %s\n", (so), FD_ISSET((so)->s, (r_fdset))?"READ":"",\
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FD_ISSET((so)->s, (w_fdset))?"WRITE":"", FD_ISSET((so)->s, (x_fdset))?"OOB":"")); \
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync } while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# endif /* VBOX_WITH_DEBUG_NAT_SOCKETS */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# define DO_LOG_NAT_SOCK(so, proto, winevent, r_fdset, w_fdset, x_fdset) do {} while (0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif /* !VBOX_WITH_DEBUG_NAT_SOCKETS */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#define LOG_NAT_SOCK(so, proto, winevent, r_fdset, w_fdset, x_fdset) DO_LOG_NAT_SOCK((so), proto, (winevent), (r_fdset), (w_fdset), (x_fdset))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncstatic const uint8_t special_ethaddr[6] =
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync 0x52, 0x54, 0x00, 0x12, 0x35, 0x00
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync};
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef RT_OS_WINDOWS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncstatic int get_dns_addr_domain(PNATState pData, bool fVerbose,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync struct in_addr *pdns_addr,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync const char **ppszDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync int rc = 0;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FIXED_INFO *FixedInfo = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync ULONG BufLen;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DWORD ret;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync IP_ADDR_STRING *pIPAddr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync struct in_addr tmp_addr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FixedInfo = (FIXED_INFO *)GlobalAlloc(GPTR, sizeof(FIXED_INFO));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync BufLen = sizeof(FIXED_INFO);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /** @todo: this API returns all DNS servers, no matter whether the
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * corresponding network adapter is disabled or not. Maybe replace
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * this by GetAdapterAddresses(), which is XP/Vista only though. */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (ERROR_BUFFER_OVERFLOW == GetNetworkParams(FixedInfo, &BufLen))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (FixedInfo)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync GlobalFree(FixedInfo);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FixedInfo = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FixedInfo = GlobalAlloc(GPTR, BufLen);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if ((ret = GetNetworkParams(FixedInfo, &BufLen)) != ERROR_SUCCESS)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("GetNetworkParams failed. ret = %08x\n", (u_int)ret ));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (FixedInfo)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync GlobalFree(FixedInfo);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FixedInfo = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync rc = -1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync goto get_dns_prefix;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pIPAddr = &(FixedInfo->DnsServerList);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync inet_aton(pIPAddr->IpAddress.String, &tmp_addr);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("nat: DNS Servers:\n"));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose || pdns_addr->s_addr != tmp_addr.s_addr)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: DNS address: %s\n", pIPAddr->IpAddress.String));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *pdns_addr = tmp_addr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pIPAddr = FixedInfo -> DnsServerList.Next;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync while (pIPAddr)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: ignored DNS address: %s\n", pIPAddr ->IpAddress.String));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pIPAddr = pIPAddr ->Next;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (FixedInfo)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync GlobalFree(FixedInfo);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FixedInfo = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncget_dns_prefix:
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (ppszDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync OSVERSIONINFO ver;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char szDnsDomain[256];
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync DWORD dwSize = sizeof(szDnsDomain);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *ppszDomain = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync GetVersionEx(&ver);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (ver.dwMajorVersion >= 5)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* GetComputerNameEx exists in Windows versions starting with 2000. */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (GetComputerNameEx(ComputerNameDnsDomain, szDnsDomain, &dwSize))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (szDnsDomain[0])
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* Just non-empty strings are valid. */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *ppszDomain = RTStrDup(szDnsDomain);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (pData->fPassDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: passing domain name %s\n", szDnsDomain));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("nat: ignoring domain %s\n", szDnsDomain));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("nat: GetComputerNameEx failed (%d)\n", GetLastError()));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return rc;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncstatic int get_dns_addr_domain(PNATState pData, bool fVerbose,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync struct in_addr *pdns_addr,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync const char **ppszDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char buff[512];
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char buff2[256];
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FILE *f;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync int found = 0;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync struct in_addr tmp_addr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef RT_OS_OS2
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* Try various locations. */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char *etc = getenv("ETC");
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync f = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (etc)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync snprintf(buff, sizeof(buff), "%s/RESOLV2", etc);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync f = fopen(buff, "rt");
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!f)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync snprintf(buff, sizeof(buff), "%s/RESOLV2", _PATH_ETC);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync f = fopen(buff, "rt");
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!f)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync snprintf(buff, sizeof(buff), "%s/resolv.conf", _PATH_ETC);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync f = fopen(buff, "rt");
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync f = fopen("/etc/resolv.conf", "r");
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!f)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return -1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (ppszDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *ppszDomain = NULL;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("nat: DNS Servers:\n"));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync while (fgets(buff, 512, f) != NULL)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (sscanf(buff, "nameserver%*[ \t]%256s", buff2) == 1)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!inet_aton(buff2, &tmp_addr))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync continue;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (tmp_addr.s_addr == loopback_addr.s_addr)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync tmp_addr = our_addr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* If it's the first one, set it to dns_addr */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!found)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose || pdns_addr->s_addr != tmp_addr.s_addr)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: DNS address: %s\n", buff2));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *pdns_addr = tmp_addr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: ignored DNS address: %s\n", buff2));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync found++;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if ( ppszDomain
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync && (!strncmp(buff, "domain", 6) || !strncmp(buff, "search", 6)))
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* Domain name/search list present. Pick first entry */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (*ppszDomain == NULL)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char *tok;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync char *saveptr;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync tok = strtok_r(&buff[6], " \t\n", &saveptr);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (tok)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *ppszDomain = RTStrDup(tok);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (pData->fPassDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (fVerbose)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: passing domain name %s\n", tok));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("nat: ignoring domain %s\n", tok));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync fclose(f);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!found)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return -1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return 0;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncint get_dns_addr(PNATState pData, struct in_addr *pdns_addr)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return get_dns_addr_domain(pData, false, pdns_addr, NULL);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncint slirp_init(PNATState *ppData, const char *pszNetAddr, uint32_t u32Netmask,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync bool fPassDomain, const char *pszTFTPPrefix,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync const char *pszBootFile, void *pvUser)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync int fNATfailed = 0;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PNATState pData = malloc(sizeof(NATState));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync *ppData = pData;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (!pData)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return VERR_NO_MEMORY;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (u32Netmask & 0x1f)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* CTL is x.x.x.15, bootp passes up to 16 IPs (15..31) */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return VERR_INVALID_PARAMETER;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync memset(pData, '\0', sizeof(NATState));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->fPassDomain = fPassDomain;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->pvUser = pvUser;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#if ARCH_BITS == 64 && !defined(VBOX_WITH_BSD_REASS)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->cpvHashUsed = 1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync tftp_prefix = pszTFTPPrefix;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync bootp_filename = pszBootFile;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->netmask = u32Netmask;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef RT_OS_WINDOWS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync WSADATA Data;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync WSAStartup(MAKEWORD(2,0), &Data);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->phEvents[VBOX_SOCKET_EVENT_INDEX] = CreateEvent(NULL, FALSE, FALSE, NULL);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync link_up = 1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync debug_init();
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if_init(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync ip_init(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef VBOX_WITH_SLIRP_ICMP
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync icmp_init(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif /* VBOX_WITH_SLIRP_ICMP */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* Initialise mbufs *after* setting the MTU */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync m_init(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync /* set default addresses */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync inet_aton("127.0.0.1", &loopback_addr);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync inet_aton("127.0.0.1", &dns_addr);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (get_dns_addr_domain(pData, true, &dns_addr, &pData->pszDomain) < 0)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync fNATfailed = 1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync inet_aton(pszNetAddr, &special_addr);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync alias_addr.s_addr = special_addr.s_addr | htonl(CTL_ALIAS);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync getouraddr(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync return fNATfailed ? VINF_NAT_DNS : VINF_SUCCESS;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/**
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * Statistics counters.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncvoid slirp_register_timers(PNATState pData, PPDMDRVINS pDrvIns)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifndef VBOX_WITHOUT_RELEASE_STATISTICS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatFill, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_TICKS_PER_CALL, "Profiling slirp fills", "/Drivers/NAT%d/Fill", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatPoll, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_TICKS_PER_CALL, "Profiling slirp polls", "/Drivers/NAT%d/Poll", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatFastTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_TICKS_PER_CALL, "Profiling slirp fast timer", "/Drivers/NAT%d/TimerFast", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatSlowTimer, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_TICKS_PER_CALL, "Profiling slirp slow timer", "/Drivers/NAT%d/TimerSlow", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatTCP, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_COUNT, "TCP sockets", "/Drivers/NAT%d/SockTCP", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatTCPHot, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_COUNT, "TCP sockets active", "/Drivers/NAT%d/SockTCPHot", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatUDP, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_COUNT, "UDP sockets", "/Drivers/NAT%d/SockUDP", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync PDMDrvHlpSTAMRegisterF(pDrvIns, &pData->StatUDPHot, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS,
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync STAMUNIT_COUNT, "UDP sockets active", "/Drivers/NAT%d/SockUDPHot", pDrvIns->iInstance);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif /* VBOX_WITHOUT_RELEASE_STATISTICS */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/**
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * Marks the link as up, making it possible to establish new connections.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncvoid slirp_link_up(PNATState pData)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync link_up = 1;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/**
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * Marks the link as down and cleans up the current connections.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncvoid slirp_link_down(PNATState pData)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync struct socket *so;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync while ((so = tcb.so_next) != &tcb)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync {
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (so->so_state & SS_NOFDREF || so->s == -1)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync sofree(pData, so);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync tcp_drop(pData, sototcpcb(so), 0);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync }
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync while ((so = udb.so_next) != &udb)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync udp_detach(pData, so);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync link_up = 0;
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync}
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync/**
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync * Terminates the slirp component.
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync */
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsyncvoid slirp_term(PNATState pData)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync{
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync if (pData->pszDomain)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync RTStrFree((char *)(void *)pData->pszDomain);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#if ARCH_BITS == 64 && !defined(VBOX_WITH_BSD_REASS)
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync LogRel(("NAT: cpvHashUsed=%RU32 cpvHashCollisions=%RU32 cpvHashInserts=%RU64 cpvHashDone=%RU64\n",
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->cpvHashUsed, pData->cpvHashCollisions, pData->cpvHashInserts, pData->cpvHashDone));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef VBOX_WITH_SLIRP_ICMP
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# ifdef RT_OS_WINDOWS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync pData->pfIcmpCloseHandle(pData->icmp_socket.sh);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync FreeLibrary(pData->hmIcmpLibrary);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync free(pData->pvIcmpBuffer);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# else
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync closesocket(pData->icmp_socket.s);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync# endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync slirp_link_down(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef RT_OS_WINDOWS
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync WSACleanup();
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#endif
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync#ifdef LOG_ENABLED
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("\n"
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync "NAT statistics\n"
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync "--------------\n"
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync "\n"));
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync ipstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync tcpstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync udpstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync icmpstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync mbufstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync sockstats(pData);
1264d7bb16bd361221f6e7b6e1642a520d9f72cbvboxsync Log(("\n"
"\n"
"\n"));
#endif
free(pData);
}
#define CONN_CANFSEND(so) (((so)->so_state & (SS_FCANTSENDMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
#define CONN_CANFRCV(so) (((so)->so_state & (SS_FCANTRCVMORE|SS_ISFCONNECTED)) == SS_ISFCONNECTED)
#define UPD_NFDS(x) if (nfds < (x)) nfds = (x)
/*
* curtime kept to an accuracy of 1ms
*/
#ifdef RT_OS_WINDOWS
static void updtime(PNATState pData)
{
struct _timeb tb;
_ftime(&tb);
curtime = (u_int)tb.time * (u_int)1000;
curtime += (u_int)tb.millitm;
}
#else
static void updtime(PNATState pData)
{
gettimeofday(&tt, 0);
curtime = (u_int)tt.tv_sec * (u_int)1000;
curtime += (u_int)tt.tv_usec / (u_int)1000;
if ((tt.tv_usec % 1000) >= 500)
curtime++;
}
#endif
void slirp_select_fill(PNATState pData, int *pnfds,
fd_set *readfds, fd_set *writefds, fd_set *xfds)
{
struct socket *so, *so_next;
int nfds;
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
int rc;
int error;
#endif
#ifdef VBOX_WITH_BSD_REASS
int i;
#endif /* VBOX_WITH_BSD_REASS */
STAM_REL_PROFILE_START(&pData->StatFill, a);
nfds = *pnfds;
/*
* First, TCP sockets
*/
do_slowtimo = 0;
if (link_up)
{
/*
* *_slowtimo needs calling if there are IP fragments
* in the fragment queue, or there are TCP connections active
*/
#ifndef VBOX_WITH_BSD_REASS
do_slowtimo = ((tcb.so_next != &tcb)
|| ((struct ipasfrag *)&ipq != u32_to_ptr(pData, ipq.next, struct ipasfrag *)));
#else /* !VBOX_WITH_BSD_REASS */
/* XXX:
* triggering of fragment expiration should be the same but use new macroses
*/
do_slowtimo = (tcb.so_next != &tcb);
if (!do_slowtimo)
{
for (i = 0; i < IPREASS_NHASH; i++)
{
if (!TAILQ_EMPTY(&ipq[i]))
{
do_slowtimo = 1;
break;
}
}
}
#endif /* VBOX_WITH_BSD_REASS */
STAM_REL_COUNTER_RESET(&pData->StatTCP);
STAM_REL_COUNTER_RESET(&pData->StatTCPHot);
for (so = tcb.so_next; so != &tcb; so = so_next)
{
so_next = so->so_next;
STAM_REL_COUNTER_INC(&pData->StatTCP);
/*
* See if we need a tcp_fasttimo
*/
if (time_fasttimo == 0 && so->so_tcpcb->t_flags & TF_DELACK)
time_fasttimo = curtime; /* Flag when we want a fasttimo */
/*
* NOFDREF can include still connecting to local-host,
* newly socreated() sockets etc. Don't want to select these.
*/
if (so->so_state & SS_NOFDREF || so->s == -1)
continue;
/*
* Set for reading sockets which are accepting
*/
if (so->so_state & SS_FACCEPTCONN)
{
STAM_REL_COUNTER_INC(&pData->StatTCPHot);
TCP_ENGAGE_EVENT1(so, readfds);
continue;
}
/*
* Set for writing sockets which are connecting
*/
if (so->so_state & SS_ISFCONNECTING)
{
STAM_REL_COUNTER_INC(&pData->StatTCPHot);
TCP_ENGAGE_EVENT1(so, writefds);
}
/*
* Set for writing if we are connected, can send more, and
* we have something to send
*/
if (CONN_CANFSEND(so) && so->so_rcv.sb_cc)
{
STAM_REL_COUNTER_INC(&pData->StatTCPHot);
TCP_ENGAGE_EVENT1(so, writefds);
}
/*
* Set for reading (and urgent data) if we are connected, can
* receive more, and we have room for it XXX /2 ?
*/
if (CONN_CANFRCV(so) && (so->so_snd.sb_cc < (so->so_snd.sb_datalen/2)))
{
STAM_REL_COUNTER_INC(&pData->StatTCPHot);
TCP_ENGAGE_EVENT2(so, readfds, xfds);
}
}
/*
* UDP sockets
*/
STAM_REL_COUNTER_RESET(&pData->StatUDP);
STAM_REL_COUNTER_RESET(&pData->StatUDPHot);
for (so = udb.so_next; so != &udb; so = so_next)
{
so_next = so->so_next;
STAM_REL_COUNTER_INC(&pData->StatUDP);
/*
* See if it's timed out
*/
if (so->so_expire)
{
if (so->so_expire <= curtime)
{
udp_detach(pData, so);
continue;
}
else
do_slowtimo = 1; /* Let socket expire */
}
/*
* When UDP packets are received from over the link, they're
* sendto()'d straight away, so no need for setting for writing
* Limit the number of packets queued by this session to 4.
* Note that even though we try and limit this to 4 packets,
* the session could have more queued if the packets needed
* to be fragmented.
*
* (XXX <= 4 ?)
*/
if ((so->so_state & SS_ISFCONNECTED) && so->so_queued <= 4)
{
STAM_REL_COUNTER_INC(&pData->StatUDPHot);
UDP_ENGAGE_EVENT(so, readfds);
}
}
ICMP_ENGAGE_EVENT(&pData->icmp_socket, readfds);
}
#if !defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) || !defined(RT_OS_WINDOWS)
*pnfds = nfds;
#else
*pnfds = VBOX_EVENT_COUNT;
#endif
STAM_REL_PROFILE_STOP(&pData->StatFill, a);
}
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
void slirp_select_poll(PNATState pData, int fTimeout, int fIcmp)
#else
void slirp_select_poll(PNATState pData, fd_set *readfds, fd_set *writefds, fd_set *xfds)
#endif
{
struct socket *so, *so_next;
int ret;
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
WSANETWORKEVENTS NetworkEvents;
int rc;
int error;
#endif
static uint32_t stat_time;
STAM_REL_PROFILE_START(&pData->StatPoll, a);
/* Update time */
updtime(pData);
#ifdef LOG_ENABLED
if (curtime - stat_time > 10000)
{
stat_time = curtime;
sockstats(pData);
}
#endif
/*
* See if anything has timed out
*/
if (link_up)
{
if (time_fasttimo && ((curtime - time_fasttimo) >= 2))
{
STAM_REL_PROFILE_START(&pData->StatFastTimer, a);
tcp_fasttimo(pData);
time_fasttimo = 0;
STAM_REL_PROFILE_STOP(&pData->StatFastTimer, a);
}
if (do_slowtimo && ((curtime - last_slowtimo) >= 499))
{
STAM_REL_PROFILE_START(&pData->StatSlowTimer, a);
ip_slowtimo(pData);
tcp_slowtimo(pData);
last_slowtimo = curtime;
STAM_REL_PROFILE_STOP(&pData->StatSlowTimer, a);
}
}
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
if (fTimeout)
return; /* only timer update */
#endif
/*
* Check sockets
*/
if (link_up)
{
/*
* Check TCP sockets
*/
for (so = tcb.so_next; so != &tcb; so = so_next)
{
so_next = so->so_next;
/*
* FD_ISSET is meaningless on these sockets
* (and they can crash the program)
*/
if (so->so_state & SS_NOFDREF || so->s == -1)
continue;
POLL_TCP_EVENTS(rc, error, so, &NetworkEvents);
LOG_NAT_SOCK(so, TCP, &NetworkEvents, readfds, writefds, xfds);
/*
* Check for URG data
* This will soread as well, so no need to
* test for readfds below if this succeeds
*/
/* out-of-band data */
if (CHECK_FD_SET(so, NetworkEvents, xfds))
{
sorecvoob(pData, so);
}
/*
* Check sockets for reading
*/
else if (CHECK_FD_SET(so, NetworkEvents, readfds))
{
/*
* Check for incoming connections
*/
if (so->so_state & SS_FACCEPTCONN)
{
tcp_connect(pData, so);
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
if (!(NetworkEvents.lNetworkEvents & FD_CLOSE))
#endif
continue;
}
ret = soread(pData, so, /*fCloseIfNothingRead=*/false);
/* Output it if we read something */
if (ret > 0)
tcp_output(pData, sototcpcb(so));
}
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
/*
* Check for FD_CLOSE events.
*/
if (NetworkEvents.lNetworkEvents & FD_CLOSE)
{
/*
* drain the socket
*/
for (;;)
{
ret = soread(pData, so, /*fCloseIfNothingRead=*/true);
if (ret > 0)
tcp_output(pData, sototcpcb(so));
else
break;
}
}
#endif
/*
* Check sockets for writing
*/
if (CHECK_FD_SET(so, NetworkEvents, writefds))
{
/*
* Check for non-blocking, still-connecting sockets
*/
if (so->so_state & SS_ISFCONNECTING)
{
/* Connected */
so->so_state &= ~SS_ISFCONNECTING;
/*
* This should be probably guarded by PROBE_CONN too. Anyway,
* we disable it on OS/2 because the below send call returns
* EFAULT which causes the opened TCP socket to close right
* after it has been opened and connected.
*/
#ifndef RT_OS_OS2
ret = send(so->s, (const char *)&ret, 0, 0);
if (ret < 0)
{
/* XXXXX Must fix, zero bytes is a NOP */
if ( errno == EAGAIN
|| errno == EWOULDBLOCK
|| errno == EINPROGRESS
|| errno == ENOTCONN)
continue;
/* else failed */
so->so_state = SS_NOFDREF;
}
/* else so->so_state &= ~SS_ISFCONNECTING; */
#endif
/*
* Continue tcp_input
*/
tcp_input(pData, (struct mbuf *)NULL, sizeof(struct ip), so);
/* continue; */
}
else
ret = sowrite(pData, so);
/*
* XXX If we wrote something (a lot), there could be the need
* for a window update. In the worst case, the remote will send
* a window probe to get things going again.
*/
}
/*
* Probe a still-connecting, non-blocking socket
* to check if it's still alive
*/
#ifdef PROBE_CONN
if (so->so_state & SS_ISFCONNECTING)
{
ret = recv(so->s, (char *)&ret, 0, 0);
if (ret < 0)
{
/* XXX */
if ( errno == EAGAIN
|| errno == EWOULDBLOCK
|| errno == EINPROGRESS
|| errno == ENOTCONN)
{
continue; /* Still connecting, continue */
}
/* else failed */
so->so_state = SS_NOFDREF;
/* tcp_input will take care of it */
}
else
{
ret = send(so->s, &ret, 0, 0);
if (ret < 0)
{
/* XXX */
if ( errno == EAGAIN
|| errno == EWOULDBLOCK
|| errno == EINPROGRESS
|| errno == ENOTCONN)
{
continue;
}
/* else failed */
so->so_state = SS_NOFDREF;
}
else
so->so_state &= ~SS_ISFCONNECTING;
}
tcp_input((struct mbuf *)NULL, sizeof(struct ip),so);
} /* SS_ISFCONNECTING */
#endif
}
/*
* Now UDP sockets.
* Incoming packets are sent straight away, they're not buffered.
* Incoming UDP data isn't buffered either.
*/
for (so = udb.so_next; so != &udb; so = so_next)
{
so_next = so->so_next;
POLL_UDP_EVENTS(rc, error, so, &NetworkEvents);
LOG_NAT_SOCK(so, UDP, &NetworkEvents, readfds, writefds, xfds);
if (so->s != -1 && CHECK_FD_SET(so, NetworkEvents, readfds))
{
sorecvfrom(pData, so);
}
}
#if defined(VBOX_WITH_SLIRP_ICMP)
# if defined(RT_OS_WINDOWS)
if (fIcmp)
sorecvfrom(pData, &pData->icmp_socket);
# else
if (pData->icmp_socket.s != -1 && FD_ISSET(pData->icmp_socket.s, readfds))
sorecvfrom(pData, &pData->icmp_socket);
# endif
#endif
}
/*
* See if we can start outputting
*/
if (if_queued && link_up)
if_start(pData);
STAM_REL_PROFILE_STOP(&pData->StatPoll, a);
}
#define ETH_ALEN 6
#define ETH_HLEN 14
#define ETH_P_IP 0x0800 /* Internet Protocol packet */
#define ETH_P_ARP 0x0806 /* Address Resolution packet */
#define ARPOP_REQUEST 1 /* ARP request */
#define ARPOP_REPLY 2 /* ARP reply */
struct ethhdr
{
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
unsigned short h_proto; /* packet type ID field */
};
struct arphdr
{
unsigned short ar_hrd; /* format of hardware address */
unsigned short ar_pro; /* format of protocol address */
unsigned char ar_hln; /* length of hardware address */
unsigned char ar_pln; /* length of protocol address */
unsigned short ar_op; /* ARP opcode (command) */
/*
* Ethernet looks like this : This bit is variable sized however...
*/
unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
unsigned char ar_sip[4]; /* sender IP address */
unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
unsigned char ar_tip[4]; /* target IP address */
};
static
void arp_input(PNATState pData, const uint8_t *pkt, int pkt_len)
{
struct ethhdr *eh = (struct ethhdr *)pkt;
struct arphdr *ah = (struct arphdr *)(pkt + ETH_HLEN);
uint8_t arp_reply[ETH_HLEN + sizeof(struct arphdr)];
struct ethhdr *reh = (struct ethhdr *)arp_reply;
struct arphdr *rah = (struct arphdr *)(arp_reply + ETH_HLEN);
int ar_op;
struct ex_list *ex_ptr;
uint32_t htip = ntohl(*(uint32_t*)ah->ar_tip);
ar_op = ntohs(ah->ar_op);
switch(ar_op)
{
case ARPOP_REQUEST:
if ((htip & pData->netmask) == ntohl(special_addr.s_addr))
{
if ( (htip & ~pData->netmask) == CTL_DNS
|| (htip & ~pData->netmask) == CTL_ALIAS)
goto arp_ok;
for (ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next)
{
if ((htip & ~pData->netmask) == ex_ptr->ex_addr)
goto arp_ok;
}
return;
arp_ok:
/* XXX: make an ARP request to have the client address */
memcpy(client_ethaddr, eh->h_source, ETH_ALEN);
/* ARP request for alias/dns mac address */
memcpy(reh->h_dest, pkt + ETH_ALEN, ETH_ALEN);
memcpy(reh->h_source, special_ethaddr, ETH_ALEN - 1);
reh->h_source[5] = ah->ar_tip[3];
reh->h_proto = htons(ETH_P_ARP);
rah->ar_hrd = htons(1);
rah->ar_pro = htons(ETH_P_IP);
rah->ar_hln = ETH_ALEN;
rah->ar_pln = 4;
rah->ar_op = htons(ARPOP_REPLY);
memcpy(rah->ar_sha, reh->h_source, ETH_ALEN);
memcpy(rah->ar_sip, ah->ar_tip, 4);
memcpy(rah->ar_tha, ah->ar_sha, ETH_ALEN);
memcpy(rah->ar_tip, ah->ar_sip, 4);
slirp_output(pData->pvUser, arp_reply, sizeof(arp_reply));
}
break;
default:
break;
}
}
void slirp_input(PNATState pData, const uint8_t *pkt, int pkt_len)
{
struct mbuf *m;
int proto;
if (pkt_len < ETH_HLEN)
return;
proto = ntohs(*(uint16_t *)(pkt + 12));
switch(proto)
{
case ETH_P_ARP:
arp_input(pData, pkt, pkt_len);
break;
case ETH_P_IP:
/* Update time. Important if the network is very quiet, as otherwise
* the first outgoing connection gets an incorrect timestamp. */
updtime(pData);
m = m_get(pData);
if (!m)
return;
/* Note: we add to align the IP header */
if (M_FREEROOM(m) < pkt_len + 2)
{
m_inc(m, pkt_len + 2);
}
m->m_len = pkt_len + 2;
memcpy(m->m_data + 2, pkt, pkt_len);
m->m_data += 2 + ETH_HLEN;
m->m_len -= 2 + ETH_HLEN;
ip_input(pData, m);
break;
default:
break;
}
}
/* output the IP packet to the ethernet device */
void if_encap(PNATState pData, const uint8_t *ip_data, int ip_data_len)
{
uint8_t buf[1600];
struct ethhdr *eh = (struct ethhdr *)buf;
if (ip_data_len + ETH_HLEN > sizeof(buf))
return;
memcpy(eh->h_dest, client_ethaddr, ETH_ALEN);
memcpy(eh->h_source, special_ethaddr, ETH_ALEN - 1);
/* XXX: not correct */
eh->h_source[5] = CTL_ALIAS;
eh->h_proto = htons(ETH_P_IP);
memcpy(buf + sizeof(struct ethhdr), ip_data, ip_data_len);
slirp_output(pData->pvUser, buf, ip_data_len + ETH_HLEN);
}
int slirp_redir(PNATState pData, int is_udp, int host_port,
struct in_addr guest_addr, int guest_port)
{
if (is_udp)
{
if (!udp_listen(pData, htons(host_port), guest_addr.s_addr,
htons(guest_port), 0))
return -1;
}
else
{
if (!solisten(pData, htons(host_port), guest_addr.s_addr,
htons(guest_port), 0))
return -1;
}
return 0;
}
int slirp_add_exec(PNATState pData, int do_pty, const char *args, int addr_low_byte,
int guest_port)
{
return add_exec(&exec_list, do_pty, (char *)args,
addr_low_byte, htons(guest_port));
}
void slirp_set_ethaddr(PNATState pData, const uint8_t *ethaddr)
{
memcpy(client_ethaddr, ethaddr, ETH_ALEN);
}
#if defined(VBOX_WITH_SIMPLIFIED_SLIRP_SYNC) && defined(RT_OS_WINDOWS)
HANDLE *slirp_get_events(PNATState pData)
{
return pData->phEvents;
}
void slirp_register_external_event(PNATState pData, HANDLE hEvent, int index)
{
pData->phEvents[index] = hEvent;
}
#endif
unsigned int slirp_get_timeout_ms(PNATState pData)
{
if (link_up)
{
if (time_fasttimo)
return 2;
if (do_slowtimo)
return 500; /* see PR_SLOWHZ */
}
return 0;
}