| 0,0 → 1,147 |
|---|
| /* |
| * Copyright (c) 2009 Martin Decky |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup libcipc |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef LIBC_IPC_VFS_H_ |
| #define LIBC_IPC_VFS_H_ |
| |
| #include <sys/types.h> |
| #include <ipc/ipc.h> |
| |
| #define FS_NAME_MAXLEN 20 |
| #define MAX_PATH_LEN (64 * 1024) |
| #define PLB_SIZE (2 * MAX_PATH_LEN) |
| |
| /* Basic types. */ |
| typedef int16_t fs_handle_t; |
| typedef uint32_t fs_index_t; |
| |
| /** |
| * A structure like this is passed to VFS by each individual FS upon its |
| * registration. It assosiates a human-readable identifier with each |
| * registered FS. |
| */ |
| typedef struct { |
| /** Unique identifier of the fs. */ |
| char name[FS_NAME_MAXLEN + 1]; |
| } vfs_info_t; |
| |
| typedef enum { |
| VFS_OPEN_NODE = IPC_FIRST_USER_METHOD, |
| VFS_READ, |
| VFS_WRITE, |
| VFS_TRUNCATE, |
| VFS_MOUNT, |
| VFS_UNMOUNT, |
| VFS_DEVICE, |
| VFS_SYNC, |
| VFS_CLOSE, |
| VFS_LAST_CMN /* keep this the last member of this enum */ |
| } vfs_request_cmn_t; |
| |
| typedef enum { |
| VFS_LOOKUP = VFS_LAST_CMN, |
| VFS_MOUNTED, |
| VFS_DESTROY, |
| VFS_LAST_CLNT /* keep this the last member of this enum */ |
| } vfs_request_clnt_t; |
| |
| typedef enum { |
| VFS_REGISTER = VFS_LAST_CMN, |
| VFS_OPEN, |
| VFS_SEEK, |
| VFS_MKDIR, |
| VFS_UNLINK, |
| VFS_RENAME, |
| VFS_NODE, |
| VFS_LAST_SRV /* keep this the last member of this enum */ |
| } vfs_request_srv_t; |
| |
| /* |
| * Lookup flags. |
| */ |
| |
| /** |
| * No lookup flags used. |
| */ |
| #define L_NONE 0 |
| |
| /** |
| * Lookup will succeed only if the object is a regular file. If L_CREATE is |
| * specified, an empty file will be created. This flag is mutually exclusive |
| * with L_DIRECTORY. |
| */ |
| #define L_FILE 1 |
| |
| /** |
| * Lookup wil succeed only if the object is a directory. If L_CREATE is |
| * specified, an empty directory will be created. This flag is mutually |
| * exclusive with L_FILE. |
| */ |
| #define L_DIRECTORY 2 |
| |
| /** |
| * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
| * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
| */ |
| #define L_EXCLUSIVE 4 |
| |
| /** |
| * L_CREATE is used for creating both regular files and directories. |
| */ |
| #define L_CREATE 8 |
| |
| /** |
| * L_LINK is used for linking to an already existing nodes. |
| */ |
| #define L_LINK 16 |
| |
| /** |
| * L_UNLINK is used to remove leaves from the file system namespace. This flag |
| * cannot be passed directly by the client, but will be set by VFS during |
| * VFS_UNLINK. |
| */ |
| #define L_UNLINK 32 |
| |
| /** |
| * L_OPEN is used to indicate that the lookup operation is a part of VFS_OPEN |
| * call from the client. This means that the server might allocate some |
| * resources for the opened file. This flag cannot be passed directly by the |
| * client. |
| */ |
| #define L_OPEN 64 |
| |
| #endif |
| |
| /** @} |
| */ |