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dll: fuse: ioctl

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This commit is contained in:
Bill Zissimopoulos 2018-05-07 14:05:18 -07:00
parent 637a1dac7e
commit fbcefe6339
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GPG Key ID: 3D4F95D52C7B3EA3
3 changed files with 54 additions and 1 deletions
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2
inc/fuse/fuse.h
View File

@ -87,7 +87,7 @@ struct fuse_operations
/* _ */ unsigned int flag_nopath:1;
/* _ */ unsigned int flag_utime_omit_ok:1;
/* _ */ unsigned int flag_reserved:29;
/* _ */ int (*ioctl)(const char *path, int cmd, void *arg, struct fuse_file_info *fi,
/* S */ int (*ioctl)(const char *path, int cmd, void *arg, struct fuse_file_info *fi,
unsigned int flags, void *data);
/* _ */ int (*poll)(const char *path, struct fuse_file_info *fi,
struct fuse_pollhandle *ph, unsigned *reventsp);

11
inc/fuse/winfsp_fuse.h
View File

@ -53,6 +53,17 @@ extern "C" {
#endif
#endif
#define FSP_FUSE_DEVICE_TYPE (0x8000 | 'W' | 'F' * 0x100) /* DeviceIoControl -> ioctl */
#define FSP_FUSE_CTLCODE_FROM_IOCTL(cmd)\
(FSP_FUSE_DEVICE_TYPE << 16) | (((c) & 0x0fff) << 2)
#define FSP_FUSE_IOCTL(cmd, isiz, osiz) \
( \
(((osiz) != 0) << 31) | \
(((isiz) != 0) << 30) | \
(((isiz) | (osiz)) << 16) | \
(cmd) \
)
/*
* FUSE uses a number of types (notably: struct stat) that are OS specific.
* Furthermore there are sometimes multiple definitions of the same type even

42
src/dll/fuse/fuse_intf.c
View File

@ -2125,6 +2125,47 @@ static NTSTATUS fsp_fuse_intf_DeleteReparsePoint(FSP_FILE_SYSTEM *FileSystem,
return STATUS_ACCESS_DENIED;
}
static NTSTATUS fsp_fuse_intf_Control(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode, UINT32 ControlCode,
PVOID InputBuffer, ULONG InputBufferLength,
PVOID OutputBuffer, ULONG OutputBufferLength, PULONG PBytesTransferred)
{
struct fuse *f = FileSystem->UserContext;
struct fsp_fuse_file_desc *filedesc = FileNode;
struct fuse_file_info fi;
int cmd;
int err;
if (0 == f->ops.ioctl)
return STATUS_INVALID_DEVICE_REQUEST;
if (FSP_FUSE_DEVICE_TYPE != DEVICE_TYPE_FROM_CTL_CODE(ControlCode))
return STATUS_INVALID_DEVICE_REQUEST;
if (0 != InputBufferLength && 0 != OutputBufferLength &&
InputBufferLength != OutputBufferLength)
return STATUS_INVALID_DEVICE_REQUEST;
memset(&fi, 0, sizeof fi);
fi.flags = filedesc->OpenFlags;
fi.fh = filedesc->FileHandle;
/* construct a Linux compatible ioctl code */
cmd = FSP_FUSE_IOCTL((ControlCode >> 2) & 0xfff, InputBufferLength, OutputBufferLength);
if (0 == OutputBufferLength)
err = f->ops.ioctl(filedesc->PosixPath, cmd, 0, &fi, 0, InputBuffer);
else
{
if (0 != InputBufferLength)
// OutputBuffer points to Response->Buffer which is FSP_FSCTL_TRANSACT_RSP_BUFFER_SIZEMAX long
memcpy(OutputBuffer, InputBuffer, InputBufferLength);
err = f->ops.ioctl(filedesc->PosixPath, cmd, 0, &fi, 0, OutputBuffer);
}
return fsp_fuse_ntstatus_from_errno(f->env, err);
}
FSP_FILE_SYSTEM_INTERFACE fsp_fuse_intf =
{
fsp_fuse_intf_GetVolumeInfo,
@ -2152,6 +2193,7 @@ FSP_FILE_SYSTEM_INTERFACE fsp_fuse_intf =
fsp_fuse_intf_DeleteReparsePoint,
0,
fsp_fuse_intf_GetDirInfoByName,
fsp_fuse_intf_Control,
};
/*