mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-22 09:29:52 +03:00
1708998a11
In addition to saving 4 bytes for each instantiation, this change makes IP-related operations faster and clearer. https://tools.ietf.org/html/rfc3493.html#section-3.7
452 lines
11 KiB
C
452 lines
11 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
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// Cedar Communication Module
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// Proto_Win7.c
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// Initialize the helper module for Windows 7 / Windows 8 / Windows Vista / Windows Server 2008 / Windows Server 2008 R2 / Windows Server 2012 / Windows 10
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#ifdef OS_WIN32
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#include "Proto_Win7.h"
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#include "Mayaqua/Cfg.h"
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#include "Mayaqua/FileIO.h"
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#include "Mayaqua/Internat.h"
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#include "Mayaqua/Memory.h"
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#include "Mayaqua/Microsoft.h"
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#include "Mayaqua/Str.h"
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#include <Wfp/Wfp.h>
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#include <stdlib.h>
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#include <fwpmu.h>
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static IPSEC_WIN7_FUNCTIONS *api = NULL;
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static HINSTANCE hDll = NULL;
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// Initialize the IPsec helper module for Windows 7
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IPSEC_WIN7 *IPsecWin7Init()
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{
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IPSEC_WIN7 *w;
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FWPM_SESSION0 session;
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UINT ret;
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FWPM_FILTER0 filter;
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UINT64 weight = MAXUINT64;
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Debug("IPsecWin7Init()\n");
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if (MsIsAdmin() == false)
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{
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return NULL;
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}
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if (IPsecWin7InitApi() == false)
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{
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return NULL;
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}
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// Driver Initialization
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if (IPsecWin7InitDriver() == false)
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{
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return NULL;
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}
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// Open the WFP (Dynamic Session)
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Zero(&session, sizeof(session));
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session.flags = FWPM_SESSION_FLAG_DYNAMIC;
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w = ZeroMalloc(sizeof(IPSEC_WIN7));
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ret = api->FwpmEngineOpen0(NULL, RPC_C_AUTHN_DEFAULT, NULL, &session, &w->hEngine);
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if (ret)
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{
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Debug("FwpmEngineOpen0 Failed.\n");
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IPsecWin7Free(w);
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return NULL;
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}
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// Create the Filter (IPv4)
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Zero(&filter, sizeof(filter));
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filter.flags = FWPM_FILTER_FLAG_PERMIT_IF_CALLOUT_UNREGISTERED;
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filter.layerKey = FWPM_LAYER_INBOUND_IPPACKET_V4;
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filter.weight.type = FWP_UINT64;
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filter.weight.uint64 = &weight;
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filter.action.type = FWP_ACTION_CALLOUT_UNKNOWN;
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filter.action.calloutKey = GUID_WFP_CALLOUT_DRIVER_V4;
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filter.displayData.name = IPSEC_WIN7_FILTER_TITLE_V4;
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ret = api->FwpmFilterAdd0(w->hEngine, &filter, NULL, &w->FilterIPv4Id);
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if (ret)
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{
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Debug("FwpmFilterAdd0 for IPv4 Failed: 0x%X\n", ret);
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}
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else
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{
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Debug("FwpmFilterAdd0 for IPv4 Ok.\n");
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}
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// Create the Filter (IPv6)
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Zero(&filter, sizeof(filter));
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filter.flags = FWPM_FILTER_FLAG_PERMIT_IF_CALLOUT_UNREGISTERED;
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filter.layerKey = FWPM_LAYER_INBOUND_IPPACKET_V6;
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filter.weight.type = FWP_UINT64;
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filter.weight.uint64 = &weight;
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filter.action.type = FWP_ACTION_CALLOUT_UNKNOWN;
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filter.action.calloutKey = GUID_WFP_CALLOUT_DRIVER_V6;
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filter.displayData.name = IPSEC_WIN7_FILTER_TITLE_V6;
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ret = api->FwpmFilterAdd0(w->hEngine, &filter, NULL, &w->FilterIPv6Id);
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if (ret)
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{
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Debug("FwpmFilterAdd0 for IPv6 Failed: 0x%X\n", ret);
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}
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else
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{
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Debug("FwpmFilterAdd0 for IPv6 Ok.\n");
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}
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// Open the device of the driver as a file
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w->hDriverFile = CreateFileA(WFP_DEVICE_FILE_NAME, GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
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if (w->hDriverFile == NULL || w->hDriverFile == INVALID_HANDLE_VALUE)
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{
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Debug("CreateFileA(\"%s\") Failed.\n", WFP_DEVICE_FILE_NAME);
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IPsecWin7Free(w);
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return NULL;
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}
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IPsecWin7UpdateHostIPAddressList(w);
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Debug("IPsecWin7Init() Ok.\n");
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return w;
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}
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// Update the IP address list of the host
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void IPsecWin7UpdateHostIPAddressList(IPSEC_WIN7 *w)
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{
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LIST *o;
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UINT i;
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BUF *buf;
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UINT retsize;
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// Validate arguments
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if (w == NULL)
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{
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return;
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}
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o = GetHostIPAddressList();
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if (o == NULL)
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{
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return;
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}
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buf = NewBuf();
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for (i = 0;i < LIST_NUM(o);i++)
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{
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IP *ip = LIST_DATA(o, i);
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WFP_LOCAL_IP a;
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Zero(&a, sizeof(a));
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// Exclude any IPs or localhost IP
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if (IsZeroIP(ip) == false && IsLocalHostIP(ip) == false)
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{
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if (IsIP4(ip))
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{
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a.IpVersion = 4;
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Copy(a.IpAddress.IPv4Address, IPV4(ip->address), sizeof(a.IpAddress.IPv4Address));
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}
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else
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{
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a.IpVersion = 6;
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Copy(a.IpAddress.IPv6Address, ip->address, sizeof(a.IpAddress.IPv6Address));
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}
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WriteBuf(buf, &a, sizeof(WFP_LOCAL_IP));
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}
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}
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if (WriteFile(w->hDriverFile, buf->Buf, buf->Size, &retsize, NULL) == false)
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{
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Debug("WriteFile to the driver failed. %u\n", GetLastError());
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}
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FreeHostIPAddressList(o);
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FreeBuf(buf);
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}
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// Release the module
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void IPsecWin7Free(IPSEC_WIN7 *w)
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{
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// Validate arguments
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if (w == NULL)
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{
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return;
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}
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if (w->hEngine != NULL)
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{
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api->FwpmEngineClose0(w->hEngine);
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}
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if (w->hDriverFile != NULL && w->hDriverFile != INVALID_HANDLE_VALUE)
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{
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CloseHandle(w->hDriverFile);
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}
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Free(w);
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}
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// Initialize and start the driver
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bool IPsecWin7InitDriver()
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{
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bool ret;
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void *lock = MsInitGlobalLock("IPsecWin7InitDriver", false);
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void *p = MsDisableWow64FileSystemRedirection();
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MsGlobalLock(lock);
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{
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ret = IPsecWin7InitDriverInner();
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}
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MsGlobalUnlock(lock);
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MsFreeGlobalLock(lock);
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MsRestoreWow64FileSystemRedirection(p);
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Debug("IPsecWin7InitDriver: %u\n", ret);
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return ret;
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}
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bool IPsecWin7InitDriverInner()
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{
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char sys_filename[MAX_PATH];
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bool install_driver = true;
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HANDLE hEngine;
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UINT ret;
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FWPM_SESSION0 session;
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UINT id;
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FWPM_CALLOUT0 callout;
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Format(sys_filename, sizeof(sys_filename), IPSEC_WIN7_DST_SYS, MsGetSystem32Dir());
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if (IsFileExists(sys_filename) && MsIsServiceInstalled(IPSEC_WIN7_DRIVER_NAME))
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{
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if (GetCurrentIPsecWin7DriverBuild() >= CEDAR_VERSION_BUILD)
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{
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// Not to install since the latest version has been already installed
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install_driver = false;
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}
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}
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if (install_driver)
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{
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char src_filename[MAX_PATH];
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if (MsIsWindows10() == false)
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{
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Format(src_filename, sizeof(src_filename),
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"|DriverPackages\\Wfp\\%s\\pxwfp_%s.sys",
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(MsIsX64() ? "x64" : "x86"), (MsIsX64() ? "x64" : "x86"));
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}
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else
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{
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Format(src_filename, sizeof(src_filename),
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"|DriverPackages\\Wfp_Win10\\%s\\pxwfp_%s.sys",
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(MsIsX64() ? "x64" : "x86"), (MsIsX64() ? "x64" : "x86"));
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}
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// Copy the driver
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if (FileCopy(src_filename, sys_filename) == false)
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{
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Debug("%s copy failed. %u\n", sys_filename, GetLastError());
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if (IsFileExists(sys_filename) == false)
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{
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Debug("%s failed. Abort.\n", sys_filename);
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return false;
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}
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}
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else
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{
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Debug("%s copied.\n", sys_filename);
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}
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// Set the build number
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SetCurrentIPsecWin7DriverBuild();
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}
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// Get whether the device drivers is already installed
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if (MsIsServiceInstalled(IPSEC_WIN7_DRIVER_NAME) == false)
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{
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wchar_t sys_filename_w[MAX_PATH];
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StrToUni(sys_filename_w, sizeof(sys_filename_w), sys_filename);
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// Run a new installation
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if (MsInstallDeviceDriverW(IPSEC_WIN7_DRIVER_NAME, IPSEC_WIN7_DRIVER_TITLE,
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sys_filename_w, NULL) == false)
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{
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// Installation failed
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Debug("MsInstallDeviceDriverW failed.\n");
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return false;
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}
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}
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// Start if the device driver is stopped
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if (MsIsServiceRunning(IPSEC_WIN7_DRIVER_NAME) == false)
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{
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if (MsStartService(IPSEC_WIN7_DRIVER_NAME) == false)
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{
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// Start failure
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Debug("MsStartService failed.\n");
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return false;
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}
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Debug("%s service started.\n", IPSEC_WIN7_DRIVER_NAME);
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}
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else
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{
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Debug("%s service was already started.\n", IPSEC_WIN7_DRIVER_NAME);
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}
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// Open the WFP
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Zero(&session, sizeof(session));
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ret = api->FwpmEngineOpen0(NULL, RPC_C_AUTHN_DEFAULT, NULL, &session, &hEngine);
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if (ret)
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{
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Debug("FwpmEngineOpen0 failed.\n");
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return false;
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}
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// Create the Callout Driver (IPv4)
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Zero(&callout, sizeof(callout));
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callout.calloutKey = GUID_WFP_CALLOUT_DRIVER_V4;
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callout.applicableLayer = FWPM_LAYER_INBOUND_IPPACKET_V4;
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callout.displayData.name = IPSEC_WIN7_DRIVER_TITLE_V4;
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ret = api->FwpmCalloutAdd0(hEngine, &callout, NULL, &id);
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if (ret)
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{
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Debug("FwpmCalloutAdd0 for IPv4 Failed: 0x%X\n", ret);
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}
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else
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{
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Debug("FwpmCalloutAdd0 for IPv4 Ok.\n");
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}
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// Create the Callout Driver (IPv6)
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Zero(&callout, sizeof(callout));
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callout.calloutKey = GUID_WFP_CALLOUT_DRIVER_V6;
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callout.applicableLayer = FWPM_LAYER_INBOUND_IPPACKET_V6;
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callout.displayData.name = IPSEC_WIN7_DRIVER_TITLE_V6;
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ret = api->FwpmCalloutAdd0(hEngine, &callout, NULL, &id);
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if (ret)
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{
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Debug("FwpmCalloutAdd0 for IPv6 Failed: 0x%X\n", ret);
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}
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else
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{
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Debug("FwpmCalloutAdd0 for IPv6 Ok.\n");
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}
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api->FwpmEngineClose0(hEngine);
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return true;
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}
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// Write the build number of the current driver
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void SetCurrentIPsecWin7DriverBuild()
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{
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MsRegWriteInt(REG_LOCAL_MACHINE, IPSEC_WIN7_DRIVER_REGKEY,
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(MsIsWindows10() ? IPSEC_WIN7_DRIVER_BUILDNUMBER_WIN10 : IPSEC_WIN7_DRIVER_BUILDNUMBER),
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CEDAR_VERSION_BUILD);
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}
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// Get the build number of the current driver
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UINT GetCurrentIPsecWin7DriverBuild()
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{
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return MsRegReadInt(REG_LOCAL_MACHINE, IPSEC_WIN7_DRIVER_REGKEY,
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(MsIsWindows10() ? IPSEC_WIN7_DRIVER_BUILDNUMBER_WIN10 : IPSEC_WIN7_DRIVER_BUILDNUMBER));
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}
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// Initialization of the API
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bool IPsecWin7InitApi()
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{
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if (api != NULL)
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{
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return true;
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}
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if (hDll == NULL)
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{
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hDll = LoadLibraryA("FWPUCLNT.DLL");
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}
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if (hDll == NULL)
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{
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return false;
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}
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api = malloc(sizeof(IPSEC_WIN7_FUNCTIONS));
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Zero(api, sizeof(IPSEC_WIN7_FUNCTIONS));
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api->FwpmEngineOpen0 =
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(DWORD (__stdcall *)(const wchar_t *,UINT32,SEC_WINNT_AUTH_IDENTITY_W *,const FWPM_SESSION0 *,HANDLE *))
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GetProcAddress(hDll, "FwpmEngineOpen0");
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api->FwpmEngineClose0 =
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(DWORD (__stdcall *)(HANDLE))
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GetProcAddress(hDll, "FwpmEngineClose0");
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api->FwpmFreeMemory0 =
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(void (__stdcall *)(void **))
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GetProcAddress(hDll, "FwpmFreeMemory0");
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api->FwpmFilterAdd0 =
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(DWORD (__stdcall *)(HANDLE,const FWPM_FILTER0 *,PSECURITY_DESCRIPTOR,UINT64 *))
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GetProcAddress(hDll, "FwpmFilterAdd0");
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api->IPsecSaContextCreate0 =
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(DWORD (__stdcall *)(HANDLE,const IPSEC_TRAFFIC0 *,UINT64 *,UINT64 *))
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GetProcAddress(hDll, "IPsecSaContextCreate0");
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api->IPsecSaContextGetSpi0 =
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(DWORD (__stdcall *)(HANDLE,UINT64,const IPSEC_GETSPI0 *,IPSEC_SA_SPI *))
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GetProcAddress(hDll, "IPsecSaContextGetSpi0");
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api->IPsecSaContextAddInbound0 =
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(DWORD (__stdcall *)(HANDLE,UINT64,const IPSEC_SA_BUNDLE0 *))
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GetProcAddress(hDll, "IPsecSaContextAddInbound0");
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api->IPsecSaContextAddOutbound0 =
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(DWORD (__stdcall *)(HANDLE,UINT64,const IPSEC_SA_BUNDLE0 *))
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GetProcAddress(hDll, "IPsecSaContextAddOutbound0");
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api->FwpmCalloutAdd0 =
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(DWORD (__stdcall *)(HANDLE,const FWPM_CALLOUT0 *,PSECURITY_DESCRIPTOR,UINT32 *))
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GetProcAddress(hDll, "FwpmCalloutAdd0");
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if (api->FwpmEngineOpen0 == NULL ||
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api->FwpmEngineClose0 == NULL ||
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api->FwpmFreeMemory0 == NULL ||
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api->FwpmFilterAdd0 == NULL ||
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api->IPsecSaContextCreate0 == NULL ||
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api->IPsecSaContextGetSpi0 == NULL ||
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api->IPsecSaContextAddInbound0 == NULL ||
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api->IPsecSaContextAddOutbound0 == NULL ||
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api->FwpmCalloutAdd0 == NULL)
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{
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free(api);
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api = NULL;
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return false;
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}
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return true;
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}
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#endif // WIN32
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