Rev 4584 | Rev 4609 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4481 | decky | 1 | /* |
| 2 | * Copyright (c) 2009 Martin Decky |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | /** @addtogroup libcipc |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** @file |
||
| 33 | */ |
||
| 34 | |||
| 35 | #ifndef LIBC_IPC_VFS_H_ |
||
| 36 | #define LIBC_IPC_VFS_H_ |
||
| 37 | |||
| 38 | #include <sys/types.h> |
||
| 39 | #include <ipc/ipc.h> |
||
| 40 | |||
| 41 | #define FS_NAME_MAXLEN 20 |
||
| 42 | #define MAX_PATH_LEN (64 * 1024) |
||
| 43 | #define PLB_SIZE (2 * MAX_PATH_LEN) |
||
| 44 | |||
| 45 | /* Basic types. */ |
||
| 46 | typedef int16_t fs_handle_t; |
||
| 47 | typedef uint32_t fs_index_t; |
||
| 48 | |||
| 49 | /** |
||
| 50 | * A structure like this is passed to VFS by each individual FS upon its |
||
| 51 | * registration. It assosiates a human-readable identifier with each |
||
| 52 | * registered FS. |
||
| 53 | */ |
||
| 54 | typedef struct { |
||
| 55 | /** Unique identifier of the fs. */ |
||
| 56 | char name[FS_NAME_MAXLEN + 1]; |
||
| 57 | } vfs_info_t; |
||
| 58 | |||
| 59 | typedef enum { |
||
| 4584 | jermar | 60 | VFS_IN_OPEN = IPC_FIRST_USER_METHOD, |
| 61 | VFS_IN_OPEN_NODE, |
||
| 62 | VFS_IN_READ, |
||
| 63 | VFS_IN_WRITE, |
||
| 64 | VFS_IN_SEEK, |
||
| 65 | VFS_IN_TRUNCATE, |
||
| 4585 | jermar | 66 | VFS_IN_FSTAT, |
| 4584 | jermar | 67 | VFS_IN_CLOSE, |
| 68 | VFS_IN_MOUNT, |
||
| 69 | VFS_IN_UNMOUNT, |
||
| 70 | VFS_IN_DEVICE, |
||
| 71 | VFS_IN_SYNC, |
||
| 72 | VFS_IN_REGISTER, |
||
| 73 | VFS_IN_MKDIR, |
||
| 74 | VFS_IN_UNLINK, |
||
| 75 | VFS_IN_RENAME, |
||
| 4585 | jermar | 76 | VFS_IN_STAT, |
| 4584 | jermar | 77 | VFS_IN_NODE |
| 78 | } vfs_in_request_t; |
||
| 4481 | decky | 79 | |
| 80 | typedef enum { |
||
| 4584 | jermar | 81 | VFS_OUT_OPEN_NODE = IPC_FIRST_USER_METHOD, |
| 82 | VFS_OUT_READ, |
||
| 83 | VFS_OUT_WRITE, |
||
| 84 | VFS_OUT_TRUNCATE, |
||
| 85 | VFS_OUT_CLOSE, |
||
| 86 | VFS_OUT_MOUNT, |
||
| 87 | VFS_OUT_MOUNTED, |
||
| 88 | VFS_OUT_UNMOUNT, |
||
| 89 | VFS_OUT_DEVICE, |
||
| 90 | VFS_OUT_SYNC, |
||
| 4585 | jermar | 91 | VFS_OUT_STAT, |
| 4584 | jermar | 92 | VFS_OUT_LOOKUP, |
| 93 | VFS_OUT_DESTROY, |
||
| 94 | VFS_OUT_LAST |
||
| 95 | } vfs_out_request_t; |
||
| 4481 | decky | 96 | |
| 97 | /* |
||
| 98 | * Lookup flags. |
||
| 99 | */ |
||
| 100 | |||
| 101 | /** |
||
| 102 | * No lookup flags used. |
||
| 103 | */ |
||
| 104 | #define L_NONE 0 |
||
| 105 | |||
| 106 | /** |
||
| 107 | * Lookup will succeed only if the object is a regular file. If L_CREATE is |
||
| 108 | * specified, an empty file will be created. This flag is mutually exclusive |
||
| 109 | * with L_DIRECTORY. |
||
| 110 | */ |
||
| 111 | #define L_FILE 1 |
||
| 112 | |||
| 113 | /** |
||
| 114 | * Lookup wil succeed only if the object is a directory. If L_CREATE is |
||
| 115 | * specified, an empty directory will be created. This flag is mutually |
||
| 116 | * exclusive with L_FILE. |
||
| 117 | */ |
||
| 118 | #define L_DIRECTORY 2 |
||
| 119 | |||
| 120 | /** |
||
| 121 | * When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the |
||
| 122 | * object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used. |
||
| 123 | */ |
||
| 124 | #define L_EXCLUSIVE 4 |
||
| 125 | |||
| 126 | /** |
||
| 127 | * L_CREATE is used for creating both regular files and directories. |
||
| 128 | */ |
||
| 129 | #define L_CREATE 8 |
||
| 130 | |||
| 131 | /** |
||
| 132 | * L_LINK is used for linking to an already existing nodes. |
||
| 133 | */ |
||
| 134 | #define L_LINK 16 |
||
| 135 | |||
| 136 | /** |
||
| 137 | * L_UNLINK is used to remove leaves from the file system namespace. This flag |
||
| 138 | * cannot be passed directly by the client, but will be set by VFS during |
||
| 139 | * VFS_UNLINK. |
||
| 140 | */ |
||
| 141 | #define L_UNLINK 32 |
||
| 142 | |||
| 143 | /** |
||
| 144 | * L_OPEN is used to indicate that the lookup operation is a part of VFS_OPEN |
||
| 145 | * call from the client. This means that the server might allocate some |
||
| 146 | * resources for the opened file. This flag cannot be passed directly by the |
||
| 147 | * client. |
||
| 148 | */ |
||
| 149 | #define L_OPEN 64 |
||
| 150 | |||
| 151 | #endif |
||
| 152 | |||
| 153 | /** @} |
||
| 154 | */ |