mirror of
https://github.com/winfsp/winfsp.git
synced 2025-10-31 03:58:38 -05:00
dll: fuse: implementation checkpoint
This commit is contained in:
Bill Zissimopoulos
@@ -17,6 +17,12 @@
|
||||
|
||||
#include <dll/fuse/library.h>
|
||||
|
||||
struct fuse_chan
|
||||
{
|
||||
PWSTR MountPoint;
|
||||
UINT8 Buffer[];
|
||||
};
|
||||
|
||||
#define FSP_FUSE_CORE_OPT(n, f, v) { n, offsetof(struct fsp_fuse_core_opt_data, f), v }
|
||||
|
||||
struct fsp_fuse_core_opt_data
|
||||
@@ -96,22 +102,6 @@ static struct fuse_opt fsp_fuse_core_opts[] =
|
||||
FUSE_OPT_END,
|
||||
};
|
||||
|
||||
struct fuse_chan
|
||||
{
|
||||
PWSTR MountPoint;
|
||||
UINT8 Buffer[];
|
||||
};
|
||||
|
||||
struct fuse
|
||||
{
|
||||
FSP_FILE_SYSTEM *FileSystem;
|
||||
FSP_SERVICE *Service;
|
||||
struct fuse_operations ops;
|
||||
void *data;
|
||||
int environment;
|
||||
CRITICAL_SECTION Lock;
|
||||
};
|
||||
|
||||
static DWORD fsp_fuse_tlskey = TLS_OUT_OF_INDEXES;
|
||||
static INIT_ONCE fsp_fuse_initonce_v = INIT_ONCE_STATIC_INIT;
|
||||
|
||||
@@ -216,69 +206,9 @@ FSP_FUSE_API int fsp_fuse_is_lib_option(struct fsp_fuse_env *env,
|
||||
return fsp_fuse_opt_match(env, fsp_fuse_core_opts, opt);
|
||||
}
|
||||
|
||||
static void fsp_fuse_cleanup(struct fuse *f);
|
||||
|
||||
static NTSTATUS fsp_fuse_svcstart(FSP_SERVICE *Service, ULONG argc, PWSTR *argv)
|
||||
{
|
||||
struct fuse *f = Service->UserContext;
|
||||
|
||||
return FspFileSystemStartDispatcher(f->FileSystem, 0);
|
||||
}
|
||||
|
||||
static NTSTATUS fsp_fuse_svcstop(FSP_SERVICE *Service)
|
||||
{
|
||||
struct fuse *f = Service->UserContext;
|
||||
|
||||
FspFileSystemStopDispatcher(f->FileSystem);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
|
||||
struct fuse_args *outargs)
|
||||
{
|
||||
struct fsp_fuse_core_opt_data *opt_data = opt_data0;
|
||||
|
||||
switch (key)
|
||||
{
|
||||
default:
|
||||
return 1;
|
||||
case 'h':
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE, L""
|
||||
LIBRARY_NAME "-FUSE options:\n"
|
||||
" -o SectorSize=N sector size for Windows (512-4096, deflt: 4096)\n"
|
||||
" -o SectorsPerAllocationUnit=N allocation unit size (deflt: 1*SectorSize)\n"
|
||||
" -o MaxComponentLength=N max file name component length (deflt: 255)\n"
|
||||
" -o VolumeCreationTime=T volume creation time (FILETIME hex format)\n"
|
||||
" -o VolumeSerialNumber=N 32-bit wide\n"
|
||||
" -o FileInfoTimeout=N FileInfo/Security/VolumeInfo timeout (millisec)\n"
|
||||
" -o CaseInsensitiveSearch file system supports case-insensitive file names\n"
|
||||
" -o PersistentAcls file system preserves and enforces ACL's\n"
|
||||
//" -o ReparsePoints file system supports reparse points\n"
|
||||
//" -o NamedStreams file system supports named streams\n"
|
||||
//" -o ReadOnlyVolume file system is read only\n"
|
||||
" --UNC=U --VolumePrefix=U UNC prefix (\\Server\\Share)\n");
|
||||
opt_data->help = 1;
|
||||
return 1;
|
||||
case 'V':
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE, L""
|
||||
LIBRARY_NAME "-FUSE version %d.%d",
|
||||
FUSE_MAJOR_VERSION, FUSE_MINOR_VERSION);
|
||||
opt_data->help = 1;
|
||||
return 1;
|
||||
case 'U':
|
||||
if ('U' == arg[2])
|
||||
arg += sizeof "--UNC" - 1;
|
||||
else if ('V' == arg[2])
|
||||
arg += sizeof "--VolumePrefix" - 1;
|
||||
if (0 == MultiByteToWideChar(CP_UTF8, 0, arg, -1,
|
||||
opt_data->VolumeParams.Prefix, sizeof opt_data->VolumeParams.Prefix / sizeof(WCHAR)))
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
struct fuse_chan *ch, struct fuse_args *args,
|
||||
const struct fuse_operations *ops, size_t opsize, void *data)
|
||||
{
|
||||
static FSP_FILE_SYSTEM_INTERFACE intf =
|
||||
{
|
||||
@@ -286,46 +216,19 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
0,
|
||||
fsp_fuse_op_get_security_by_name,
|
||||
};
|
||||
struct fsp_fuse_core_opt_data opt_data;
|
||||
struct fuse_conn_info conn;
|
||||
struct fuse *f = Service->UserContext;
|
||||
struct fuse_context *context;
|
||||
struct fuse *f = 0;
|
||||
PWSTR ServiceName = FspDiagIdent();
|
||||
PWSTR ErrorMessage = L".";
|
||||
struct fuse_conn_info conn;
|
||||
NTSTATUS Result;
|
||||
BOOLEAN FsInit = FALSE;
|
||||
|
||||
memset(&opt_data, 0, sizeof opt_data);
|
||||
opt_data.env = env;
|
||||
|
||||
if (-1 == fsp_fuse_opt_parse(env, args, &opt_data, fsp_fuse_core_opts, fsp_fuse_core_opt_proc))
|
||||
return 0;
|
||||
if (opt_data.help)
|
||||
return 0;
|
||||
|
||||
opt_data.VolumeParams.VolumeCreationTime = *(PUINT64)&opt_data.VolumeCreationTime;
|
||||
if (0 == opt_data.VolumeParams.VolumeCreationTime)
|
||||
{
|
||||
FILETIME FileTime;
|
||||
GetSystemTimeAsFileTime(&FileTime);
|
||||
opt_data.VolumeParams.VolumeCreationTime = *(PUINT64)&FileTime;
|
||||
}
|
||||
if (0 == opt_data.VolumeParams.VolumeSerialNumber)
|
||||
opt_data.VolumeParams.VolumeSerialNumber =
|
||||
((PLARGE_INTEGER)&opt_data.VolumeParams.VolumeCreationTime)->HighPart ^
|
||||
((PLARGE_INTEGER)&opt_data.VolumeParams.VolumeCreationTime)->LowPart;
|
||||
if (!opt_data.set_FileInfoTimeout && opt_data.set_attr_timeout)
|
||||
opt_data.VolumeParams.FileInfoTimeout = opt_data.set_attr_timeout * 1000;
|
||||
opt_data.VolumeParams.CaseSensitiveSearch = !opt_data.CaseInsensitiveSearch;
|
||||
opt_data.VolumeParams.PersistentAcls = !!opt_data.PersistentAcls;
|
||||
opt_data.VolumeParams.ReparsePoints = !!opt_data.ReparsePoints;
|
||||
opt_data.VolumeParams.NamedStreams = !!opt_data.NamedStreams;
|
||||
opt_data.VolumeParams.ReadOnlyVolume = !!opt_data.ReadOnlyVolume;
|
||||
|
||||
context = fsp_fuse_get_context(env);
|
||||
context = fsp_fuse_get_context(f->env);
|
||||
if (0 == context)
|
||||
{
|
||||
Result = STATUS_INSUFFICIENT_RESOURCES;
|
||||
goto fail;
|
||||
context->private_data = data;
|
||||
}
|
||||
context->fuse = f;
|
||||
context->private_data = f->data;
|
||||
|
||||
memset(&conn, 0, sizeof conn);
|
||||
conn.proto_major = 7; /* pretend that we are FUSE kernel protocol 7.12 */
|
||||
@@ -339,10 +242,10 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
//FUSE_CAP_EXPORT_SUPPORT | /* not needed in Windows/WinFsp */
|
||||
FUSE_CAP_BIG_WRITES |
|
||||
FUSE_CAP_DONT_MASK;
|
||||
if (0 != ops->init)
|
||||
context->private_data = ops->init(&conn);
|
||||
FsInit = TRUE;
|
||||
if (0 != ops->statfs)
|
||||
if (0 != f->ops.init)
|
||||
context->private_data = f->data = f->ops.init(&conn);
|
||||
f->fsinit = TRUE;
|
||||
if (0 != f->ops.statfs)
|
||||
{
|
||||
union
|
||||
{
|
||||
@@ -352,35 +255,66 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
struct fuse_statvfs fspbuf;
|
||||
int err;
|
||||
|
||||
err = ops->statfs("/", (void *)&buf);
|
||||
err = f->ops.statfs("/", (void *)&buf);
|
||||
if (0 != err)
|
||||
goto fail;
|
||||
fsp_fuse_op_get_statvfs_buf(env->environment, &buf, &fspbuf);
|
||||
fsp_fuse_get_statvfs_buf(f->env, &buf, &fspbuf);
|
||||
|
||||
opt_data.VolumeParams.SectorSize = (UINT16)fspbuf.f_bsize;
|
||||
opt_data.VolumeParams.MaxComponentLength = (UINT16)fspbuf.f_namemax;
|
||||
if (0 == f->VolumeParams.SectorSize)
|
||||
f->VolumeParams.SectorSize = (UINT16)fspbuf.f_bsize;
|
||||
if (0 == f->VolumeParams.MaxComponentLength)
|
||||
f->VolumeParams.MaxComponentLength = (UINT16)fspbuf.f_namemax;
|
||||
}
|
||||
if (0 != f->ops.getattr)
|
||||
{
|
||||
union
|
||||
{
|
||||
struct cyg_stat cygbuf;
|
||||
struct fuse_stat fspbuf;
|
||||
} buf;
|
||||
struct fuse_stat fspbuf;
|
||||
int err;
|
||||
|
||||
err = f->ops.getattr("/", (void *)&buf);
|
||||
if (0 != err)
|
||||
goto fail;
|
||||
fsp_fuse_get_stat_buf(f->env, &buf, &fspbuf);
|
||||
|
||||
if (0 == f->VolumeParams.VolumeCreationTime)
|
||||
f->VolumeParams.VolumeCreationTime = 0;
|
||||
}
|
||||
|
||||
/* !!!: the FSD does not currently limit the VolumeParams fields! */
|
||||
/* the FSD does not currently limit these VolumeParams fields; do so here! */
|
||||
if (f->VolumeParams.SectorSize < 512)
|
||||
f->VolumeParams.SectorSize = 512;
|
||||
if (f->VolumeParams.SectorSize < 4096)
|
||||
f->VolumeParams.SectorSize = 4096;
|
||||
if (f->VolumeParams.MaxComponentLength > 255)
|
||||
f->VolumeParams.MaxComponentLength = 255;
|
||||
|
||||
f = MemAlloc(sizeof *f);
|
||||
if (0 == f)
|
||||
goto fail;
|
||||
memset(f, 0, sizeof *f);
|
||||
if (0 == f->VolumeParams.VolumeCreationTime)
|
||||
{
|
||||
FILETIME FileTime;
|
||||
GetSystemTimeAsFileTime(&FileTime);
|
||||
f->VolumeParams.VolumeCreationTime = *(PUINT64)&FileTime;
|
||||
}
|
||||
if (0 == f->VolumeParams.VolumeSerialNumber)
|
||||
f->VolumeParams.VolumeSerialNumber =
|
||||
((PLARGE_INTEGER)&f->VolumeParams.VolumeCreationTime)->HighPart ^
|
||||
((PLARGE_INTEGER)&f->VolumeParams.VolumeCreationTime)->LowPart;
|
||||
|
||||
Result = FspServiceCreate(ServiceName, fsp_fuse_svcstart, fsp_fuse_svcstop, 0, &f->Service);
|
||||
if (!NT_SUCCESS(Result))
|
||||
goto fail;
|
||||
FspServiceAllowConsoleMode(f->Service);
|
||||
f->Service->UserContext = f;
|
||||
|
||||
Result = FspFileSystemCreate(L"" FSP_FSCTL_NET_DEVICE_NAME, &opt_data.VolumeParams, &intf,
|
||||
Result = FspFileSystemCreate(
|
||||
f->VolumeParams.Prefix[0] ?
|
||||
L"" FSP_FSCTL_NET_DEVICE_NAME : L"" FSP_FSCTL_DISK_DEVICE_NAME,
|
||||
&f->VolumeParams, &intf,
|
||||
&f->FileSystem);
|
||||
if (!NT_SUCCESS(Result))
|
||||
{
|
||||
ErrorMessage = L": cannot create " LIBRARY_NAME " file system object.";
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE,
|
||||
L"Cannot create " FSP_FUSE_LIBRARY_NAME " file system.");
|
||||
goto fail;
|
||||
}
|
||||
f->FileSystem->UserContext = f;
|
||||
|
||||
FspFileSystemSetOperation(f->FileSystem, FspFsctlTransactCreateKind,
|
||||
fsp_fuse_op_create);
|
||||
@@ -411,49 +345,168 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
FspFileSystemSetOperation(f->FileSystem, FspFsctlTransactSetSecurityKind,
|
||||
fsp_fuse_op_set_security);
|
||||
//FspFileSystemSetOperationGuard(f->FileSystem, 0, 0);
|
||||
|
||||
FspFileSystemSetDebugLog(f->FileSystem, f->DebugLog);
|
||||
|
||||
if (opt_data.debug)
|
||||
FspFileSystemSetDebugLog(f->FileSystem, -1);
|
||||
|
||||
if (L'\0' != ch->MountPoint)
|
||||
if (L'\0' != f->MountPoint)
|
||||
{
|
||||
Result = FspFileSystemSetMountPoint(f->FileSystem,
|
||||
L'*' == ch->MountPoint[0] && L'\0' == ch->MountPoint[1] ? 0 : ch->MountPoint);
|
||||
L'*' == f->MountPoint[0] && L'\0' == f->MountPoint[1] ? 0 : f->MountPoint);
|
||||
if (!NT_SUCCESS(Result))
|
||||
{
|
||||
ErrorMessage = L": cannot set mount point.";
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE,
|
||||
L"Cannot set " FSP_FUSE_LIBRARY_NAME " file system mount point.");
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
memcpy(&f->ops, ops, opsize);
|
||||
f->data = context->private_data;
|
||||
f->environment = env->environment;
|
||||
InitializeCriticalSection(&f->Lock);
|
||||
Result = FspFileSystemStartDispatcher(f->FileSystem, 0);
|
||||
if (!NT_SUCCESS(Result))
|
||||
{
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE,
|
||||
L"Cannot start " FSP_FUSE_LIBRARY_NAME " file system dispatcher.");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
context->fuse = f;
|
||||
return STATUS_SUCCESS;
|
||||
|
||||
fail:
|
||||
fsp_fuse_cleanup(f);
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
static NTSTATUS fsp_fuse_svcstop(FSP_SERVICE *Service)
|
||||
{
|
||||
struct fuse *f = Service->UserContext;
|
||||
|
||||
FspFileSystemStopDispatcher(f->FileSystem);
|
||||
|
||||
fsp_fuse_cleanup(f);
|
||||
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
static void fsp_fuse_cleanup(struct fuse *f)
|
||||
{
|
||||
if (0 != f->FileSystem)
|
||||
{
|
||||
FspFileSystemDelete(f->FileSystem);
|
||||
f->FileSystem = 0;
|
||||
}
|
||||
|
||||
if (f->fsinit)
|
||||
{
|
||||
if (f->ops.destroy)
|
||||
f->ops.destroy(f->data);
|
||||
f->fsinit = FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static int fsp_fuse_core_opt_proc(void *opt_data0, const char *arg, int key,
|
||||
struct fuse_args *outargs)
|
||||
{
|
||||
struct fsp_fuse_core_opt_data *opt_data = opt_data0;
|
||||
|
||||
switch (key)
|
||||
{
|
||||
default:
|
||||
return 1;
|
||||
case 'h':
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE, L""
|
||||
FSP_FUSE_LIBRARY_NAME " options:\n"
|
||||
" -o SectorSize=N sector size for Windows (512-4096, deflt: 4096)\n"
|
||||
" -o SectorsPerAllocationUnit=N allocation unit size (deflt: 1*SectorSize)\n"
|
||||
" -o MaxComponentLength=N max file name component length (deflt: 255)\n"
|
||||
" -o VolumeCreationTime=T volume creation time (FILETIME hex format)\n"
|
||||
" -o VolumeSerialNumber=N 32-bit wide\n"
|
||||
" -o FileInfoTimeout=N FileInfo/Security/VolumeInfo timeout (millisec)\n"
|
||||
" -o CaseInsensitiveSearch file system supports case-insensitive file names\n"
|
||||
" -o PersistentAcls file system preserves and enforces ACL's\n"
|
||||
//" -o ReparsePoints file system supports reparse points\n"
|
||||
//" -o NamedStreams file system supports named streams\n"
|
||||
//" -o ReadOnlyVolume file system is read only\n"
|
||||
" --UNC=U --VolumePrefix=U UNC prefix (\\Server\\Share)\n");
|
||||
opt_data->help = 1;
|
||||
return 1;
|
||||
case 'V':
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE, L""
|
||||
FSP_FUSE_LIBRARY_NAME " version %d.%d",
|
||||
FUSE_MAJOR_VERSION, FUSE_MINOR_VERSION);
|
||||
opt_data->help = 1;
|
||||
return 1;
|
||||
case 'U':
|
||||
if ('U' == arg[2])
|
||||
arg += sizeof "--UNC" - 1;
|
||||
else if ('V' == arg[2])
|
||||
arg += sizeof "--VolumePrefix" - 1;
|
||||
if (0 == MultiByteToWideChar(CP_UTF8, 0, arg, -1,
|
||||
opt_data->VolumeParams.Prefix, sizeof opt_data->VolumeParams.Prefix / sizeof(WCHAR)))
|
||||
return -1;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
|
||||
struct fuse_chan *ch, struct fuse_args *args,
|
||||
const struct fuse_operations *ops, size_t opsize, void *data)
|
||||
{
|
||||
struct fuse *f = 0;
|
||||
struct fsp_fuse_core_opt_data opt_data;
|
||||
ULONG Size;
|
||||
NTSTATUS Result;
|
||||
|
||||
if (opsize > sizeof(struct fuse_operations))
|
||||
opsize = sizeof(struct fuse_operations);
|
||||
|
||||
memset(&opt_data, 0, sizeof opt_data);
|
||||
opt_data.env = env;
|
||||
|
||||
if (-1 == fsp_fuse_opt_parse(env, args, &opt_data, fsp_fuse_core_opts, fsp_fuse_core_opt_proc))
|
||||
return 0;
|
||||
if (opt_data.help)
|
||||
return 0;
|
||||
|
||||
opt_data.VolumeParams.VolumeCreationTime = *(PUINT64)&opt_data.VolumeCreationTime;
|
||||
if (!opt_data.set_FileInfoTimeout && opt_data.set_attr_timeout)
|
||||
opt_data.VolumeParams.FileInfoTimeout = opt_data.set_attr_timeout * 1000;
|
||||
opt_data.VolumeParams.CaseSensitiveSearch = !opt_data.CaseInsensitiveSearch;
|
||||
opt_data.VolumeParams.PersistentAcls = !!opt_data.PersistentAcls;
|
||||
opt_data.VolumeParams.ReparsePoints = !!opt_data.ReparsePoints;
|
||||
opt_data.VolumeParams.NamedStreams = !!opt_data.NamedStreams;
|
||||
opt_data.VolumeParams.ReadOnlyVolume = !!opt_data.ReadOnlyVolume;
|
||||
|
||||
f = MemAlloc(sizeof *f);
|
||||
if (0 == f)
|
||||
goto fail;
|
||||
memset(f, 0, sizeof *f);
|
||||
|
||||
f->env = env;
|
||||
memcpy(&f->ops, ops, opsize);
|
||||
f->data = data;
|
||||
f->DebugLog = opt_data.debug ? -1 : 0;
|
||||
memcpy(&f->VolumeParams, &opt_data.VolumeParams, sizeof opt_data.VolumeParams);
|
||||
|
||||
Size = (lstrlenW(ch->MountPoint) + 1) * sizeof(WCHAR);
|
||||
f->MountPoint = MemAlloc(Size);
|
||||
if (0 == f->MountPoint)
|
||||
goto fail;
|
||||
memcpy(f->MountPoint, ch->MountPoint, Size);
|
||||
|
||||
Result = FspServiceCreate(FspDiagIdent(), fsp_fuse_svcstart, fsp_fuse_svcstop, 0, &f->Service);
|
||||
if (!NT_SUCCESS(Result))
|
||||
goto fail;
|
||||
FspServiceAllowConsoleMode(f->Service);
|
||||
f->Service->UserContext = f;
|
||||
|
||||
return f;
|
||||
|
||||
fail:
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE, L"Unable to create FUSE file system%s");
|
||||
FspServiceLog(EVENTLOG_ERROR_TYPE,
|
||||
L"Cannot create " FSP_FUSE_LIBRARY_NAME " file system.");
|
||||
|
||||
if (0 != f)
|
||||
{
|
||||
if (0 != f->FileSystem)
|
||||
FspFileSystemDelete(f->FileSystem);
|
||||
|
||||
if (0 != f->Service)
|
||||
FspServiceDelete(f->Service);
|
||||
|
||||
MemFree(f);
|
||||
}
|
||||
|
||||
if (FsInit)
|
||||
{
|
||||
if (0 != ops->destroy)
|
||||
ops->destroy(context->private_data);
|
||||
}
|
||||
fsp_fuse_destroy(env, f);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -461,11 +514,13 @@ fail:
|
||||
FSP_FUSE_API void fsp_fuse_destroy(struct fsp_fuse_env *env,
|
||||
struct fuse *f)
|
||||
{
|
||||
DeleteCriticalSection(&f->Lock);
|
||||
if (0 != f->FileSystem)
|
||||
FspFileSystemDelete(f->FileSystem);
|
||||
|
||||
FspFileSystemDelete(f->FileSystem);
|
||||
if (0 != f->Service)
|
||||
FspServiceDelete(f->Service);
|
||||
|
||||
FspServiceDelete(f->Service);
|
||||
MemFree(f->MountPoint);
|
||||
|
||||
MemFree(f);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user