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dokannp.c
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/*
Dokan : user-mode file system library for Windows
Copyright (C) 2020 - 2025 Google, Inc.
Copyright (C) 2015 - 2019 Adrien J. <[email protected]> and Maxime C. <[email protected]>
Copyright (C) 2007 - 2011 Hiroki Asakawa <[email protected]>
http://dokan-dev.github.io
------------
Some work on Network Provider can be originated from VirtualBox Windows Guest Shared Folders project
http://www.virtualbox.org/svn/vbox/trunk/src/VBox/Additions/WINNT/SharedFolders/np/vboxmrxnp.cpp
------------
This program 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 3 of the License, or (at your option) any
later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../dokan/dokan.h"
#include <malloc.h>
#include <npapi.h>
#include <stdio.h>
#include <strsafe.h>
#include <windows.h>
#include <winnetwk.h>
static VOID DokanDbgPrintW(LPCWSTR format, ...) {
const WCHAR *outputString;
WCHAR *buffer;
size_t length;
va_list argp;
va_start(argp, format);
length = _vscwprintf(format, argp) + 1;
buffer = _malloca(length * sizeof(WCHAR));
if (buffer) {
StringCchVPrintfW(buffer, length, format, argp);
outputString = buffer;
} else {
outputString = format;
}
OutputDebugStringW(outputString);
_freea(buffer);
va_end(argp);
}
#define DbgPrintW(format, ...) DokanDbgPrintW(format, __VA_ARGS__)
DWORD APIENTRY NPGetCaps(DWORD Index) {
DWORD rc = 0;
DbgPrintW(L"NPGetCaps %d\n", Index);
switch (Index) {
case WNNC_SPEC_VERSION:
DbgPrintW(L" WNNC_SPEC_VERSION\n");
rc = WNNC_SPEC_VERSION51;
break;
case WNNC_NET_TYPE:
DbgPrintW(L" WNNC_NET_TYPE\n");
rc = WNNC_NET_RDR2SAMPLE;
break;
case WNNC_DRIVER_VERSION:
DbgPrintW(L" WNNC_DRIVER_VERSION\n");
rc = 1;
break;
case WNNC_CONNECTION:
DbgPrintW(L" WNC_CONNECTION\n");
rc = WNNC_CON_GETCONNECTIONS | WNNC_CON_CANCELCONNECTION |
WNNC_CON_ADDCONNECTION | WNNC_CON_ADDCONNECTION3;
break;
case WNNC_ENUMERATION:
DbgPrintW(L" WNNC_ENUMERATION\n");
rc = WNNC_ENUM_LOCAL | WNNC_ENUM_GLOBAL | WNNC_ENUM_SHAREABLE;
break;
case WNNC_START:
DbgPrintW(L" WNNC_START\n");
rc = WNNC_WAIT_FOR_START;
break;
case WNNC_USER:
DbgPrintW(L" WNNC_USER\n");
rc = 0;
break;
case WNNC_DIALOG:
DbgPrintW(L" WNNC_DIALOG\n");
rc = WNNC_DLG_GETRESOURCEPARENT | WNNC_DLG_GETRESOURCEINFORMATION;
break;
case WNNC_ADMIN:
DbgPrintW(L" WNNC_ADMIN\n");
rc = 0;
break;
default:
DbgPrintW(L" default\n");
rc = 0;
break;
}
return rc;
}
static const WCHAR *parseServerName(const WCHAR *lpRemoteName,
const WCHAR **lpServerName,
ULONG *ulServerName) {
int cLeadingBackslashes = 0;
while (*lpRemoteName == L'\\') {
lpRemoteName++;
cLeadingBackslashes++;
}
DbgPrintW(L"parseServerName: cLeadingBackslashes %d\n", cLeadingBackslashes);
if (cLeadingBackslashes == 0 || cLeadingBackslashes == 2) {
if (lpServerName != NULL) {
*lpServerName = lpRemoteName;
}
if (ulServerName != NULL) {
*ulServerName = 0;
}
while (*lpRemoteName && *lpRemoteName != L'\\') {
lpRemoteName++;
if (ulServerName != NULL) {
(*ulServerName)++;
}
}
return lpRemoteName;
}
return NULL;
}
DWORD APIENTRY NPLogonNotify(__in PLUID LogonId, __in PCWSTR AuthentInfoType,
__in PVOID AuthentInfo,
__in PCWSTR PreviousAuthentInfoType,
__in PVOID PreviousAuthentInfo,
__in PWSTR StationName, __in PVOID StationHandle,
__out PWSTR *LogonScript) {
UNREFERENCED_PARAMETER(LogonId);
UNREFERENCED_PARAMETER(AuthentInfoType);
UNREFERENCED_PARAMETER(AuthentInfo);
UNREFERENCED_PARAMETER(PreviousAuthentInfoType);
UNREFERENCED_PARAMETER(PreviousAuthentInfo);
UNREFERENCED_PARAMETER(StationName);
UNREFERENCED_PARAMETER(StationHandle);
DbgPrintW(L"NPLogonNotify\n");
*LogonScript = NULL;
return WN_SUCCESS;
}
DWORD APIENTRY NPPasswordChangeNotify(
__in LPCWSTR AuthentInfoType, __in LPVOID AuthentInfo,
__in LPCWSTR PreviousAuthentInfoType, __in LPVOID RreviousAuthentInfo,
__in LPWSTR StationName, __in PVOID StationHandle, __in DWORD ChangeInfo) {
UNREFERENCED_PARAMETER(AuthentInfoType);
UNREFERENCED_PARAMETER(AuthentInfo);
UNREFERENCED_PARAMETER(PreviousAuthentInfoType);
UNREFERENCED_PARAMETER(RreviousAuthentInfo);
UNREFERENCED_PARAMETER(StationName);
UNREFERENCED_PARAMETER(StationHandle);
UNREFERENCED_PARAMETER(ChangeInfo);
DbgPrintW(L"NPPasswordChangeNotify\n");
SetLastError(WN_NOT_SUPPORTED);
return WN_NOT_SUPPORTED;
}
DWORD APIENTRY NPAddConnection(__in LPNETRESOURCE NetResource,
__in LPWSTR Password, __in LPWSTR UserName) {
DbgPrintW(L"NPAddConnection\n");
return NPAddConnection3(NULL, NetResource, Password, UserName, 0);
}
DWORD APIENTRY NPAddConnection3(__in HWND WndOwner,
__in LPNETRESOURCE NetResource,
__in LPWSTR Password, __in LPWSTR UserName,
__in DWORD Flags) {
DWORD status;
WCHAR temp[MAX_PATH + 1];
WCHAR local[3];
UNREFERENCED_PARAMETER(WndOwner);
UNREFERENCED_PARAMETER(Password);
UNREFERENCED_PARAMETER(UserName);
UNREFERENCED_PARAMETER(Flags);
DbgPrintW(L"NPAddConnection3\n");
DbgPrintW(L" LocalName: %s\n", NetResource->lpLocalName);
DbgPrintW(L" RemoteName: %s\n", NetResource->lpRemoteName);
ZeroMemory(local, sizeof(local));
if (lstrlen(NetResource->lpLocalName) > 1 &&
NetResource->lpLocalName[1] == L':') {
local[0] = (WCHAR)toupper(NetResource->lpLocalName[0]);
local[1] = L':';
local[2] = L'\0';
}
if (QueryDosDevice(local, temp, MAX_PATH / 2)) {
DbgPrintW(L" WN_ALREADY_CONNECTED\n");
status = WN_ALREADY_CONNECTED;
} else {
DbgPrintW(L" WN_BAD_NETNAME\n");
status = WN_BAD_NETNAME;
}
return status;
}
DWORD APIENTRY NPCancelConnection(__in LPWSTR Name, __in BOOL Force) {
DbgPrintW(L"NpCancelConnection %s %d\n", Name, Force);
ULONG nbRead = 0;
WCHAR dosDevice[] = L"\\DosDevices\\C:";
PDOKAN_MOUNT_POINT_INFO dokanMountPointInfo =
DokanGetMountPointList(FALSE, &nbRead);
if (dokanMountPointInfo == NULL) {
DbgPrintW(L"NpGetConnection DokanGetMountPointList failed\n");
return WN_NOT_CONNECTED;
}
dosDevice[12] = Name[0];
for (unsigned int i = 0; i < nbRead; ++i) {
if (wcscmp(dokanMountPointInfo[i].MountPoint, dosDevice) == 0) {
if (dokanMountPointInfo[i].MountOptions &
DOKAN_EVENT_ENABLE_NETWORK_UNMOUNT) {
DokanReleaseMountPointList(dokanMountPointInfo);
if (DokanRemoveMountPoint(Name)) {
DbgPrintW(L"NpCancelConnection: DokanRemoveMountPoint succeeded\n");
return WN_SUCCESS;
} else {
DbgPrintW(L"NpCancelConnection: DokanRemoveMountPoint failed\n");
return WN_BAD_VALUE;
}
}
}
}
DbgPrintW(L"NpCancelConnection Disconnect was ignored\n");
return WN_NO_ERROR;
}
DWORD APIENTRY NPGetConnection(__in LPWSTR LocalName, __out LPWSTR RemoteName,
__inout LPDWORD BufferSize) {
DbgPrintW(L"NpGetConnection %s, %d\n", LocalName, *BufferSize);
ULONG nbRead = 0;
WCHAR dosDevice[] = L"\\DosDevices\\C:";
PDOKAN_MOUNT_POINT_INFO dokanMountPointInfo =
DokanGetMountPointList(FALSE, &nbRead);
if (dokanMountPointInfo == NULL) {
DbgPrintW(L"NpGetConnection DokanGetMountPointList failed\n");
return WN_NOT_CONNECTED;
}
DWORD currentSessionId;
if (!ProcessIdToSessionId(GetCurrentProcessId(), ¤tSessionId)) {
currentSessionId = 0;
}
dosDevice[12] = LocalName[0];
for (unsigned int i = 0; i < nbRead; ++i) {
if ((dokanMountPointInfo[i].SessionId == -1 ||
dokanMountPointInfo[i].SessionId == currentSessionId) &&
wcscmp(dokanMountPointInfo[i].MountPoint, dosDevice) == 0) {
if (wcscmp(dokanMountPointInfo[i].UNCName, L"") == 0) {
DokanReleaseMountPointList(dokanMountPointInfo);
// No UNC, always return success
if (*BufferSize == 0)
return WN_MORE_DATA;
RemoteName[0] = L'\0';
*BufferSize = sizeof(WCHAR);
return WN_SUCCESS;
}
/* Include trailing 0 and leading '\' */
DWORD len =
(lstrlenW(dokanMountPointInfo[i].UNCName) + 2) * sizeof(WCHAR);
if (len > *BufferSize) {
*BufferSize = len;
DokanReleaseMountPointList(dokanMountPointInfo);
return WN_MORE_DATA;
}
RemoteName[0] = L'\\';
CopyMemory(&RemoteName[1], dokanMountPointInfo[i].UNCName, len);
*BufferSize = len;
DokanReleaseMountPointList(dokanMountPointInfo);
return WN_SUCCESS;
}
}
DokanReleaseMountPointList(dokanMountPointInfo);
return WN_NOT_CONNECTED;
}
/* Enumerate shared folders as hierarchy:
* SERVER(container)
* +--------------------+
* | \
* Folder1(connectable) FolderN(connectable)
*/
typedef struct _NPENUMCTX {
ULONG index; /* Index of last entry returned. */
DWORD dwScope;
DWORD dwOriginalScope;
DWORD dwType;
DWORD dwUsage;
BOOL fRoot;
} NPENUMCTX;
DWORD APIENTRY NPOpenEnum(__in DWORD Scope, __in DWORD Type, __in DWORD Usage,
__in LPNETRESOURCE NetResource, __in LPHANDLE Enum) {
DWORD dwStatus;
DbgPrintW(L"NPOpenEnum: dwScope 0x%08X, dwType 0x%08X, dwUsage 0x%08X, "
L"lpNetResource %p\n",
Scope, Type, Usage, NetResource);
if (Usage == 0) {
/* The bitmask may be zero to match all of the flags. */
Usage = RESOURCEUSAGE_CONNECTABLE | RESOURCEUSAGE_CONTAINER;
}
*Enum = NULL;
/* Allocate the context structure. */
NPENUMCTX *pCtx = (NPENUMCTX *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(NPENUMCTX));
if (pCtx == NULL) {
dwStatus = WN_OUT_OF_MEMORY;
} else {
if (NetResource && NetResource->lpRemoteName) {
DbgPrintW(L"NPOpenEnum: lpRemoteName %ls\n", NetResource->lpRemoteName);
}
switch (Scope) {
case 6: /* Advertised as WNNC_ENUM_SHAREABLE. This returns C$ system shares.
* NpEnumResource will return NO_MORE_ENTRIES.
*/
{
if (NetResource == NULL || NetResource->lpRemoteName == NULL) {
/* If it is NULL or if the lpRemoteName field of the NETRESOURCE is
* NULL,
* the provider should enumerate the top level of its network.
* But system shares can't be on top level.
*/
dwStatus = WN_NOT_CONTAINER;
break;
}
const WCHAR *lpAfterName =
parseServerName(NetResource->lpRemoteName, NULL, NULL);
if (lpAfterName == NULL || (*lpAfterName != L'\\' && *lpAfterName != 0)) {
dwStatus = WN_NOT_CONTAINER;
break;
}
/* Valid server name. */
pCtx->index = 0;
pCtx->dwScope = 6;
pCtx->dwOriginalScope = Scope;
pCtx->dwType = Type;
pCtx->dwUsage = Usage;
dwStatus = WN_SUCCESS;
break;
}
case RESOURCE_GLOBALNET: /* All resources on the network. */
{
if (NetResource == NULL || NetResource->lpRemoteName == NULL) {
/* If it is NULL or if the lpRemoteName field of the NETRESOURCE is
* NULL,
* the provider should enumerate the top level of its network.
*/
pCtx->fRoot = TRUE;
} else {
/* Enumerate lpNetResource->lpRemoteName container, which can be only
* the Dokan container. */
const WCHAR *lpAfterName =
parseServerName(NetResource->lpRemoteName, NULL, NULL);
if (lpAfterName == NULL ||
(*lpAfterName != L'\\' && *lpAfterName != 0)) {
dwStatus = WN_NOT_CONTAINER;
break;
}
/* Valid server name. */
pCtx->fRoot = FALSE;
}
pCtx->index = 0;
pCtx->dwScope = RESOURCE_GLOBALNET;
pCtx->dwOriginalScope = Scope;
pCtx->dwType = Type;
pCtx->dwUsage = Usage;
dwStatus = WN_SUCCESS;
break;
}
case RESOURCE_CONNECTED: /* All currently connected resources. */
case RESOURCE_CONTEXT: /* The interpretation of this is left to the
provider. Treat this as RESOURCE_GLOBALNET. */
{
pCtx->index = 0;
pCtx->dwScope = RESOURCE_CONNECTED;
pCtx->dwOriginalScope = Scope;
pCtx->dwType = Type;
pCtx->dwUsage = Usage;
pCtx->fRoot = FALSE; /* Actually ignored for RESOURCE_CONNECTED. */
dwStatus = WN_SUCCESS;
break;
}
default:
DbgPrintW(L"NPOpenEnum: unsupported scope 0x%lx\n", Scope);
dwStatus = WN_NOT_SUPPORTED;
break;
}
}
if (dwStatus != WN_SUCCESS) {
DbgPrintW(L"NPOpenEnum: Returned error 0x%08X\n", dwStatus);
if (pCtx) {
HeapFree(GetProcessHeap(), 0, pCtx);
}
} else {
DbgPrintW(L"NPOpenEnum: pCtx %p\n", pCtx);
*Enum = pCtx;
}
return dwStatus;
}
DWORD APIENTRY NPCloseEnum(__in HANDLE Enum) {
NPENUMCTX *pCtx = (NPENUMCTX *)Enum;
DbgPrintW(L"NPCloseEnum: hEnum %p\n", Enum);
if (pCtx) {
HeapFree(GetProcessHeap(), 0, pCtx);
}
DbgPrintW(L"NPCloseEnum: returns\n");
return WN_SUCCESS;
}
DWORD APIENTRY NPGetResourceParent(__in LPNETRESOURCE NetResource,
__in LPVOID Buffer,
__in LPDWORD BufferSize) {
DbgPrintW(
L"NPGetResourceParent: lpNetResource %p, lpBuffer %p, lpBufferSize %p\n",
NetResource, Buffer, BufferSize);
/* Construct a new NETRESOURCE which is syntactically a parent of
* lpNetResource,
* then call NPGetResourceInformation to actually fill the buffer.
*/
if (!NetResource || !NetResource->lpRemoteName || !BufferSize) {
return WN_BAD_NETNAME;
}
const WCHAR *lpAfterName =
parseServerName(NetResource->lpRemoteName, NULL, NULL);
if (lpAfterName == NULL || (*lpAfterName != L'\\' && *lpAfterName != 0)) {
DbgPrintW(L"NPGetResourceParent: WN_BAD_NETNAME\n");
return WN_BAD_NETNAME;
}
DWORD RemoteNameLength = lstrlen(NetResource->lpRemoteName);
DWORD cbEntry = sizeof(NETRESOURCE);
cbEntry += (RemoteNameLength + 1) * sizeof(WCHAR);
NETRESOURCE *pParent =
(NETRESOURCE *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, cbEntry);
if (!pParent) {
return WN_OUT_OF_MEMORY;
}
pParent->lpRemoteName = (WCHAR *)((PBYTE)pParent + sizeof(NETRESOURCE));
lstrcpy(pParent->lpRemoteName, NetResource->lpRemoteName);
/* Remove last path component of the pParent->lpRemoteName. */
WCHAR *pLastSlash = pParent->lpRemoteName + RemoteNameLength;
if (*pLastSlash == L'\\') {
/* \\server\share\path\, skip last slash immediately. */
pLastSlash--;
}
while (pLastSlash != pParent->lpRemoteName) {
if (*pLastSlash == L'\\') {
break;
}
pLastSlash--;
}
DWORD dwStatus = WN_SUCCESS;
if (pLastSlash == pParent->lpRemoteName ||
pLastSlash == pParent->lpRemoteName + 1) {
/* It is a leading backslash. Construct "no parent" NETRESOURCE. */
NETRESOURCE *pNetResource = (NETRESOURCE *)Buffer;
cbEntry = sizeof(NETRESOURCE);
cbEntry += sizeof(DOKAN_NP_NAME); /* remote name */
cbEntry += sizeof(DOKAN_NP_NAME); /* provider name */
if (cbEntry > *BufferSize) {
DbgPrintW(L"NPGetResourceParent: WN_MORE_DATA 0x%x\n", cbEntry);
*BufferSize = cbEntry;
dwStatus = WN_MORE_DATA;
} else {
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwType = RESOURCETYPE_ANY;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_NETWORK;
pNetResource->dwUsage = RESOURCEUSAGE_CONTAINER;
WCHAR *pStrings = (WCHAR *)((PBYTE)Buffer + *BufferSize);
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pNetResource->lpRemoteName = pStrings;
CopyMemory(pStrings, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
pStrings += sizeof(DOKAN_NP_NAME) / sizeof(WCHAR);
pNetResource->lpProvider = pStrings;
CopyMemory(pStrings, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
pStrings += sizeof(DOKAN_NP_NAME) / sizeof(WCHAR);
DbgPrintW(L"NPGetResourceParent: no parent, strings %p/%p\n", pStrings,
(PBYTE)Buffer + *BufferSize);
}
} else {
/* Make the parent remote name and get its information. */
*pLastSlash = 0;
LPWSTR lpSystem = NULL;
dwStatus = NPGetResourceInformation(pParent, Buffer, BufferSize, &lpSystem);
}
if (pParent) {
HeapFree(GetProcessHeap(), 0, pParent);
}
return dwStatus;
}
DWORD APIENTRY NPEnumResource(__in HANDLE Enum, __in LPDWORD Count,
__in LPVOID Buffer, __in LPDWORD BufferSize) {
DWORD dwStatus = WN_SUCCESS;
NPENUMCTX *pCtx = (NPENUMCTX *)Enum;
ULONG cbEntry = 0;
DbgPrintW(
L"NPEnumResource: hEnum %p, lpcCount %p, lpBuffer %p, lpBufferSize %p.\n",
Enum, Count, Buffer, BufferSize);
if (pCtx == NULL) {
DbgPrintW(L"NPEnumResource: WN_BAD_HANDLE\n");
return WN_BAD_HANDLE;
}
if (Count == NULL || Buffer == NULL) {
DbgPrintW(L"NPEnumResource: WN_BAD_VALUE\n");
return WN_BAD_VALUE;
}
DbgPrintW(
L"NPEnumResource: *lpcCount 0x%x, *lpBufferSize 0x%x, pCtx->index %lu\n",
*Count, *BufferSize, pCtx->index);
LPNETRESOURCE pNetResource = (LPNETRESOURCE)Buffer;
ULONG cbRemaining = *BufferSize;
ULONG cEntriesCopied = 0;
PWCHAR pStrings = (PWCHAR)((PBYTE)Buffer + *BufferSize);
PWCHAR pDst;
ULONG nbRead = 0;
PDOKAN_MOUNT_POINT_INFO dokanMountPointInfo =
DokanGetMountPointList(TRUE, &nbRead);
if (dokanMountPointInfo == NULL) {
DbgPrintW(L"NPEnumResource DokanGetMountPointList failed\n");
return WN_NO_MORE_ENTRIES;
}
DWORD processId = GetCurrentProcessId();
DWORD sessionId = 0;
ProcessIdToSessionId(processId, &sessionId);
DbgPrintW(L"NPEnumResource CurrentSesstionID: %d\n", sessionId);
DbgPrintW(L"NPEnumResource nbRead: %d\n", nbRead);
while (cEntriesCopied < *Count && pCtx->index < nbRead) {
DbgPrintW(L"NPEnumResource SesstionID: %lu\n",
dokanMountPointInfo[pCtx->index].SessionId);
if (-1 != dokanMountPointInfo[pCtx->index].SessionId &&
sessionId != dokanMountPointInfo[pCtx->index].SessionId) {
pCtx->index++;
continue;
}
if (wcscmp(dokanMountPointInfo[pCtx->index].UNCName, L"") == 0) {
DbgPrintW(L"NPEnumResource: end reached at index %lu\n", pCtx->index);
break;
}
if (pCtx->dwScope == RESOURCE_CONNECTED) {
DbgPrintW(L"NPEnumResource: RESOURCE_CONNECTED\n");
if (lstrlenW(dokanMountPointInfo[pCtx->index].MountPoint) >
12 /* \DosDevices\C: */) {
/* How many bytes is needed for the current NETRESOURCE data. */
ULONG cbRemoteName =
(lstrlenW(dokanMountPointInfo[pCtx->index].UNCName) + 1) * sizeof(WCHAR);
cbEntry = sizeof(NETRESOURCE);
cbEntry += 3 * sizeof(WCHAR); /* C:\0*/
cbEntry += sizeof(WCHAR) + cbRemoteName; /* Leading \. */
cbEntry += sizeof(DOKAN_NP_NAME);
if (cbEntry > cbRemaining) {
break;
}
cbRemaining -= cbEntry;
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwScope = RESOURCE_CONNECTED;
pNetResource->dwType = RESOURCETYPE_DISK;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
pNetResource->dwUsage = RESOURCEUSAGE_CONNECTABLE;
/* Reserve the space in the string area. */
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pDst = pStrings;
pNetResource->lpLocalName = pDst;
*pDst++ = dokanMountPointInfo[pCtx->index].MountPoint[12];
*pDst++ = L':';
*pDst++ = L'\0';
pNetResource->lpRemoteName = pDst;
*pDst++ = L'\\';
CopyMemory(pDst, dokanMountPointInfo[pCtx->index].UNCName, cbRemoteName);
pDst += cbRemoteName / sizeof(WCHAR);
pNetResource->lpComment = NULL;
pNetResource->lpProvider = pDst;
CopyMemory(pDst, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
DbgPrintW(L"NPEnumResource: lpRemoteName: %ls\n",
pNetResource->lpRemoteName);
cEntriesCopied++;
pNetResource++;
}
pCtx->index++;
} else if (pCtx->dwScope == RESOURCE_GLOBALNET) {
DbgPrintW(L"NPEnumResource: RESOURCE_GLOBALNET: root %d\n", pCtx->fRoot);
if (pCtx->fRoot) {
WCHAR *lpServerName = NULL;
ULONG ulServerName = 0;
parseServerName(&dokanMountPointInfo[pCtx->index].UNCName[1], &lpServerName,
&ulServerName);
/* Return server.
* Determine the space needed for this entry.
*/
cbEntry = sizeof(NETRESOURCE);
cbEntry +=
(2 + ulServerName) * sizeof(WCHAR); /* \\ + the server name */
cbEntry += sizeof(DOKAN_NP_NAME);
if (cbEntry > cbRemaining) {
break;
}
cbRemaining -= cbEntry;
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwScope = RESOURCE_GLOBALNET;
pNetResource->dwType = RESOURCETYPE_ANY;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
pNetResource->dwUsage = RESOURCEUSAGE_CONTAINER;
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pDst = pStrings;
pNetResource->lpLocalName = NULL;
pNetResource->lpRemoteName = pDst;
*pDst++ = L'\\';
*pDst++ = L'\\';
CopyMemory(pDst, lpServerName, ulServerName * sizeof(WCHAR));
pDst += ulServerName;
pNetResource->lpComment = NULL;
pNetResource->lpProvider = pDst;
CopyMemory(pDst, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
cEntriesCopied++;
pCtx->index++;
} else {
/* How many bytes is needed for the current NETRESOURCE data. */
ULONG cbRemoteName =
(lstrlenW(dokanMountPointInfo[pCtx->index].UNCName) + 1) * sizeof(WCHAR);
cbEntry = sizeof(NETRESOURCE);
/* Remote name: \\ + server + \ + name. */
cbEntry += 1 * sizeof(WCHAR) + cbRemoteName;
cbEntry += sizeof(DOKAN_NP_NAME);
if (cbEntry > cbRemaining) {
break;
}
cbRemaining -= cbEntry;
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwScope = pCtx->dwOriginalScope;
pNetResource->dwType = RESOURCETYPE_DISK;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
pNetResource->dwUsage = RESOURCEUSAGE_CONNECTABLE;
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pDst = pStrings;
pNetResource->lpLocalName = NULL;
pNetResource->lpRemoteName = pDst;
*pDst++ = L'\\';
CopyMemory(pDst, dokanMountPointInfo[pCtx->index].UNCName, cbRemoteName);
pDst += cbRemoteName / sizeof(WCHAR);
pNetResource->lpComment = NULL;
pNetResource->lpProvider = pDst;
CopyMemory(pDst, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
DbgPrintW(L"NPEnumResource: lpRemoteName: %ls\n",
pNetResource->lpRemoteName);
cEntriesCopied++;
pNetResource++;
pCtx->index++;
}
} else if (pCtx->dwScope == 6) {
DbgPrintW(L"NPEnumResource: dwScope 6\n");
dwStatus = WN_NO_MORE_ENTRIES;
} else {
DbgPrintW(L"NPEnumResource: invalid dwScope 0x%x\n", pCtx->dwScope);
DokanReleaseMountPointList(dokanMountPointInfo);
return WN_BAD_HANDLE;
}
}
*Count = cEntriesCopied;
if (cEntriesCopied == 0 && dwStatus == WN_SUCCESS) {
if (pCtx->index >= nbRead ||
wcscmp(dokanMountPointInfo[pCtx->index].UNCName, L"") == 0) {
dwStatus = WN_NO_MORE_ENTRIES;
} else {
DbgPrintW(L"NPEnumResource: More Data Needed - %d\n", cbEntry);
*BufferSize = cbEntry;
dwStatus = WN_MORE_DATA;
}
}
DbgPrintW(L"NPEnumResource: Entries returned %d, dwStatus 0x%08X\n",
cEntriesCopied, dwStatus);
DokanReleaseMountPointList(dokanMountPointInfo);
return dwStatus;
}
DWORD APIENTRY NPGetResourceInformation(__in LPNETRESOURCE NetResource,
__out LPVOID Buffer,
__out LPDWORD BufferSize,
__out LPWSTR *System) {
DbgPrintW(L"NPGetResourceInformation: NetResource %p, Buffer %p, BufferSize "
L"%p, System %p\n",
NetResource, Buffer, BufferSize, System);
if (NetResource == NULL || NetResource->lpRemoteName == NULL ||
BufferSize == NULL) {
DbgPrintW(L"NPGetResourceInformation: WN_BAD_VALUE\n");
return WN_BAD_VALUE;
}
DbgPrintW(L"NPGetResourceInformation: lpRemoteName %ls, *BufferSize 0x%x\n",
NetResource->lpRemoteName, *BufferSize);
WCHAR *lpServerName = NULL;
ULONG ulServerName = 0;
const WCHAR *lpAfterName =
parseServerName(NetResource->lpRemoteName, &lpServerName, &ulServerName);
if (lpServerName == NULL || lpAfterName == NULL ||
(*lpAfterName != L'\\' && *lpAfterName != 0)) {
DbgPrintW(L"NPGetResourceInformation: WN_BAD_NETNAME\n");
return WN_BAD_NETNAME;
}
DbgPrintW(L"NPGetResourceInformation: lpServerName %ls - %lu\n", lpServerName,
ulServerName);
DbgPrintW(L"NPGetResourceInformation: lpAfterName %ls\n", lpAfterName);
if (NetResource->dwType != 0 && NetResource->dwType != RESOURCETYPE_DISK) {
/* The caller passed in a nonzero dwType that does not match
* the actual type of the network resource.
*/
return WN_BAD_DEV_TYPE;
}
/*
* If the input remote resource name was "\\server\share\dir1\dir2",
* then the output NETRESOURCE contains information about the resource
* "\\server\share".
* The lpRemoteName, lpProvider, dwType, dwDisplayType, and dwUsage fields are
* returned
* containing values, all other fields being set to NULL.
*/
DWORD cbEntry;
WCHAR *pStrings = (WCHAR *)((PBYTE)Buffer + *BufferSize);
NETRESOURCE *pNetResource = (NETRESOURCE *)Buffer;
/* Check what kind of the resource is that by parsing path components.
* lpAfterName points to first WCHAR after a valid server name.
*/
if (lpAfterName[0] == 0 || lpAfterName[1] == 0) {
DbgPrintW(L"NPGetResourceInformation: type 1\n");
/* "\\DOKAN" or "\\DOKAN\" */
cbEntry = sizeof(NETRESOURCE);
cbEntry += (2 + ulServerName + 1) * sizeof(WCHAR); /* \\ + server name */
cbEntry += sizeof(DOKAN_NP_NAME); /* provider name */
if (cbEntry > *BufferSize) {
DbgPrintW(L"NPGetResourceInformation: WN_MORE_DATA 0x%x\n", cbEntry);
*BufferSize = cbEntry;
return WN_MORE_DATA;
}
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwType = RESOURCETYPE_ANY;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SERVER;
pNetResource->dwUsage = RESOURCEUSAGE_CONTAINER;
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pNetResource->lpRemoteName = pStrings;
*pStrings++ = L'\\';
*pStrings++ = L'\\';
CopyMemory(pStrings, lpServerName, ulServerName * sizeof(WCHAR));
pStrings += ulServerName;
*pStrings++ = L'\0';
pNetResource->lpProvider = pStrings;
CopyMemory(pStrings, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
pStrings += sizeof(DOKAN_NP_NAME) / sizeof(WCHAR);
DbgPrintW(L"NPGetResourceInformation: lpRemoteName: %ls, strings %p/%p\n",
pNetResource->lpRemoteName, pStrings,
(PBYTE)Buffer + *BufferSize);
if (System) {
*System = NULL;
}
return WN_SUCCESS;
}
/* *lpAfterName == L'\\', could be share or share + path.
* Check if there are more path components after the share name.
*/
const WCHAR *lp = lpAfterName + 1;
while (*lp && *lp != L'\\') {
lp++;
}
if (*lp == 0) {
DbgPrintW(L"NPGetResourceInformation: type 2\n");
/* It is a share only: \\dokan\share */
cbEntry = sizeof(NETRESOURCE);
cbEntry += (2 + ulServerName + 1) *
sizeof(WCHAR); /* \\ + server name with trailing nul */
cbEntry += (DWORD)((lp - lpAfterName) *
sizeof(WCHAR)); /* The share name with leading \\ */
cbEntry += sizeof(DOKAN_NP_NAME); /* provider name */
if (cbEntry > *BufferSize) {
DbgPrintW(L"NPGetResourceInformation: WN_MORE_DATA 0x%x\n", cbEntry);
*BufferSize = cbEntry;
return WN_MORE_DATA;
}
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwType = RESOURCETYPE_DISK;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
pNetResource->dwUsage = RESOURCEUSAGE_CONNECTABLE;
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
pNetResource->lpRemoteName = pStrings;
*pStrings++ = L'\\';
*pStrings++ = L'\\';
CopyMemory(pStrings, lpServerName, ulServerName * sizeof(WCHAR));
pStrings += ulServerName;
CopyMemory(pStrings, lpAfterName, (lp - lpAfterName + 1) * sizeof(WCHAR));
pStrings += lp - lpAfterName + 1;
pNetResource->lpProvider = pStrings;
CopyMemory(pStrings, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
pStrings += sizeof(DOKAN_NP_NAME) / sizeof(WCHAR);
DbgPrintW(L"NPGetResourceInformation: lpRemoteName: %ls, strings %p/%p\n",
pNetResource->lpRemoteName, pStrings,
(PBYTE)Buffer + *BufferSize);
if (System) {
*System = NULL;
}
return WN_SUCCESS;
}
/* \\dokan\share\path */
cbEntry = sizeof(NETRESOURCE);
cbEntry += (2 + ulServerName + 1) *
sizeof(WCHAR); /* \\ + server name with trailing nul */
cbEntry += (DWORD)((lp - lpAfterName) *
sizeof(WCHAR)); /* The share name with leading \\ */
cbEntry += sizeof(DOKAN_NP_NAME); /* provider name */
cbEntry += (lstrlen(lp) + 1) * sizeof(WCHAR); /* path string for lplpSystem */
if (cbEntry > *BufferSize) {
DbgPrintW(L"NPGetResourceInformation: WN_MORE_DATA 0x%x\n", cbEntry);
*BufferSize = cbEntry;
return WN_MORE_DATA;
}
memset(pNetResource, 0, sizeof(*pNetResource));
pNetResource->dwType = RESOURCETYPE_DISK;
pNetResource->dwDisplayType = RESOURCEDISPLAYTYPE_SHARE;
pNetResource->dwUsage = RESOURCEUSAGE_CONNECTABLE;
pStrings = (PWCHAR)((PBYTE)pStrings - (cbEntry - sizeof(NETRESOURCE)));
/* The server + share. */
pNetResource->lpRemoteName = pStrings;
*pStrings++ = L'\\';
*pStrings++ = L'\\';
CopyMemory(pStrings, lpServerName, ulServerName * sizeof(WCHAR));
pStrings += ulServerName;
CopyMemory(pStrings, lpAfterName, (lp - lpAfterName) * sizeof(WCHAR));
pStrings += lp - lpAfterName;
*pStrings++ = 0;
pNetResource->lpProvider = pStrings;
CopyMemory(pStrings, DOKAN_NP_NAME, sizeof(DOKAN_NP_NAME));
pStrings += sizeof(DOKAN_NP_NAME) / sizeof(WCHAR);
if (System) {
*System = pStrings;
}
lstrcpy(pStrings, lp);
pStrings += lstrlen(lp) + 1;
DbgPrintW(L"NPGetResourceInformation: lpRemoteName: %ls, strings %p/%p\n",
pNetResource->lpRemoteName, pStrings, (PBYTE)Buffer + *BufferSize);
DbgPrintW(L"NPGetResourceInformation: *System: %ls\n",