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dll: fuse: implementation checkpoint

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This commit is contained in:
Bill Zissimopoulos
2016-06-02 09:40:56 -07:00
parent 3f8e7273c3
commit 6d5abafdaa
5 changed files with 194 additions and 20 deletions
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68
src/dll/fuse/fuse.c
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@ -16,7 +16,6 @@
*/
#include <dll/fuse/library.h>
#include <fuse/fuse.h>
#define FSP_FUSE_CORE_OPT(n, f, v) { n, offsetof(struct fsp_fuse_core_opt_data, f), v }
@ -104,10 +103,9 @@ struct fuse
{
FSP_FILE_SYSTEM *FileSystem;
FSP_SERVICE *Service;
const struct fuse_operations *Ops;
size_t OpSize;
void *Data;
int Environment;
struct fuse_operations ops;
void *data;
int environment;
CRITICAL_SECTION Lock;
};
@ -286,10 +284,13 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
fsp_fuse_op_get_security_by_name,
};
struct fsp_fuse_core_opt_data opt_data;
struct fuse_conn_info conn;
struct fuse_context *context;
struct fuse *f = 0;
PWSTR ServiceName = FspDiagIdent();
PWSTR ErrorMessage = L".";
NTSTATUS Result;
BOOLEAN FsInit = FALSE;
memset(&opt_data, 0, sizeof opt_data);
opt_data.env = env;
@ -318,6 +319,47 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
opt_data.VolumeParams.NamedStreams = !!opt_data.NamedStreams;
opt_data.VolumeParams.ReadOnlyVolume = !!opt_data.ReadOnlyVolume;
context = fsp_fuse_get_context(env);
if (0 == context)
goto fail;
context->private_data = data;
memset(&conn, 0, sizeof conn);
conn.proto_major = 7; /* pretend that we are FUSE kernel protocol 7.12 */
conn.proto_minor = 12; /* which was current at the time of FUSE 2.8 */
conn.async_read = 1;
conn.max_write = UINT_MAX;
conn.capable =
FUSE_CAP_ASYNC_READ |
//FUSE_CAP_POSIX_LOCKS | /* WinFsp handles locking in the FSD currently */
//FUSE_CAP_ATOMIC_O_TRUNC | /* due to Windows/WinFsp design, no support */
//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)
{
union
{
struct cyg_statvfs cygbuf;
struct fuse_statvfs fspbuf;
} buf;
struct fuse_statvfs fspbuf;
int err;
err = ops->statfs("/", (void *)&buf);
if (0 != err)
goto fail;
fsp_fuse_op_get_statvfs_buf(env->environment, &buf, &fspbuf);
opt_data.VolumeParams.SectorSize = (UINT16)f_bsize;
opt_data.VolumeParams.MaxComponentLength = (UINT16)f_namemax;
}
/* !!!: the FSD does not currently limit the VolumeParams fields! */
f = MemAlloc(sizeof *f);
if (0 == f)
goto fail;
@ -381,13 +423,13 @@ FSP_FUSE_API struct fuse *fsp_fuse_new(struct fsp_fuse_env *env,
}
}
f->Ops = ops;
f->OpSize = opsize;
f->Data = data;
f->Environment = env->environment;
memcpy(&f->ops, ops, opsize);
f->data = context->private_data;
f->environment = env->environment;
InitializeCriticalSection(&f->Lock);
context->fuse = f;
return f;
fail:
@ -404,6 +446,12 @@ fail:
MemFree(f);
}
if (FsInit)
{
if (0 != ops->destroy)
ops->destroy(context->private_data);
}
return 0;
}