コード例 #1
0
ファイル: passthrough.c プロジェクト: billziss-gh/winfsp
static NTSTATUS SvcStart(FSP_SERVICE *Service, ULONG argc, PWSTR *argv)
{
#define argtos(v)                       if (arge > ++argp) v = *argp; else goto usage
#define argtol(v)                       if (arge > ++argp) v = wcstol_deflt(*argp, v); else goto usage

    wchar_t **argp, **arge;
    PWSTR DebugLogFile = 0;
    ULONG DebugFlags = 0;
    PWSTR VolumePrefix = 0;
    PWSTR PassThrough = 0;
    PWSTR MountPoint = 0;
    HANDLE DebugLogHandle = INVALID_HANDLE_VALUE;
    WCHAR PassThroughBuf[MAX_PATH];
    PTFS *Ptfs = 0;
    NTSTATUS Result;

    for (argp = argv + 1, arge = argv + argc; arge > argp; argp++)
    {
        if (L'-' != argp[0][0])
            break;
        switch (argp[0][1])
        {
        case L'?':
            goto usage;
        case L'd':
            argtol(DebugFlags);
            break;
        case L'D':
            argtos(DebugLogFile);
            break;
        case L'm':
            argtos(MountPoint);
            break;
        case L'p':
            argtos(PassThrough);
            break;
        case L'u':
            argtos(VolumePrefix);
            break;
        default:
            goto usage;
        }
    }

    if (arge > argp)
        goto usage;

    if (0 == PassThrough && 0 != VolumePrefix)
    {
        PWSTR P;

        P = wcschr(VolumePrefix, L'\\');
        if (0 != P && L'\\' != P[1])
        {
            P = wcschr(P + 1, L'\\');
            if (0 != P &&
                (
                (L'A' <= P[1] && P[1] <= L'Z') ||
                (L'a' <= P[1] && P[1] <= L'z')
                ) &&
                L'$' == P[2])
            {
                StringCbPrintf(PassThroughBuf, sizeof PassThroughBuf, L"%c:%s", P[1], P + 3);
                PassThrough = PassThroughBuf;
            }
        }
    }

    if (0 == PassThrough || 0 == MountPoint)
        goto usage;

    EnableBackupRestorePrivileges();

    if (0 != DebugLogFile)
    {
        if (0 == wcscmp(L"-", DebugLogFile))
            DebugLogHandle = GetStdHandle(STD_ERROR_HANDLE);
        else
            DebugLogHandle = CreateFileW(
                DebugLogFile,
                FILE_APPEND_DATA,
                FILE_SHARE_READ | FILE_SHARE_WRITE,
                0,
                OPEN_ALWAYS,
                FILE_ATTRIBUTE_NORMAL,
                0);
        if (INVALID_HANDLE_VALUE == DebugLogHandle)
        {
            fail(L"cannot open debug log file");
            goto usage;
        }

        FspDebugLogSetHandle(DebugLogHandle);
    }

    Result = PtfsCreate(PassThrough, VolumePrefix, MountPoint, DebugFlags, &Ptfs);
    if (!NT_SUCCESS(Result))
    {
        fail(L"cannot create file system");
        goto exit;
    }

    Result = FspFileSystemStartDispatcher(Ptfs->FileSystem, 0);
    if (!NT_SUCCESS(Result))
    {
        fail(L"cannot start file system");
        goto exit;
    }

    MountPoint = FspFileSystemMountPoint(Ptfs->FileSystem);

    info(L"%s%s%s -p %s -m %s",
        L"" PROGNAME,
        0 != VolumePrefix && L'\0' != VolumePrefix[0] ? L" -u " : L"",
            0 != VolumePrefix && L'\0' != VolumePrefix[0] ? VolumePrefix : L"",
        PassThrough,
        MountPoint);

    Service->UserContext = Ptfs;
    Result = STATUS_SUCCESS;

exit:
    if (!NT_SUCCESS(Result) && 0 != Ptfs)
        PtfsDelete(Ptfs);

    return Result;

usage:
    static wchar_t usage[] = L""
        "usage: %s OPTIONS\n"
        "\n"
        "options:\n"
        "    -d DebugFlags       [-1: enable all debug logs]\n"
        "    -D DebugLogFile     [file path; use - for stderr]\n"
        "    -u \\Server\\Share    [UNC prefix (single backslash)]\n"
        "    -p Directory        [directory to expose as pass through file system]\n"
        "    -m MountPoint       [X:|*|directory]\n";

    fail(usage, L"" PROGNAME);

    return STATUS_UNSUCCESSFUL;

#undef argtos
#undef argtol
}
コード例 #2
0
ファイル: memfs.cpp プロジェクト: LucaBongiorni/winfsp
NTSTATUS MemfsStart(MEMFS *Memfs)
{
    return FspFileSystemStartDispatcher(Memfs->FileSystem, 0);
}