| 1 | /*
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| 2 | * Copyright (c) 2011 Maurizio Lombardi
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup fs
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | #ifndef _MFS_H_
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| 34 | #define _MFS_H_
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| 35 |
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| 36 | #include <minix.h>
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| 37 | #include <libblock.h>
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| 38 | #include <libfs.h>
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| 39 | #include <adt/list.h>
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| 40 | #include "../../vfs/vfs.h"
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| 41 |
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| 42 | #define DEBUG_MODE
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| 43 |
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| 44 | #ifdef DEBUG_MODE
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| 45 | #define mfsdebug(...) printf(__VA_ARGS__)
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| 46 | #else
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| 47 | #define mfsdebug(...)
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| 48 | #endif
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| 49 |
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| 50 | #ifdef _MAIN
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| 51 | #define GLOBAL
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| 52 | #else
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| 53 | #define GLOBAL extern
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| 54 | #endif
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| 55 |
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| 56 | GLOBAL fs_reg_t mfs_reg;
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| 57 |
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| 58 | typedef enum {
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| 59 | MFS_VERSION_V1 = 1,
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| 60 | MFS_VERSION_V2,
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| 61 | MFS_VERSION_V3
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| 62 | } mfs_version_t;
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| 63 |
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| 64 | /*Generic MinixFS superblock*/
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| 65 | struct mfs_sb_info {
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| 66 | uint32_t ninodes;
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| 67 | uint32_t nzones;
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| 68 | unsigned long ibmap_blocks;
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| 69 | unsigned long zbmap_blocks;
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| 70 | unsigned long firstdatazone;
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| 71 | unsigned long itable_size;
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| 72 | int log2_zone_size;
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| 73 | int ino_per_block;
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| 74 | int dirsize;
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| 75 | int block_size;
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| 76 | int fs_version;
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| 77 | uint32_t max_file_size;
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| 78 | uint16_t magic;
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| 79 | uint16_t state;
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| 80 | bool long_names;
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| 81 | bool native;
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| 82 | };
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| 83 |
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| 84 | struct mfs_instance {
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| 85 | link_t link;
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| 86 | devmap_handle_t handle;
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| 87 | struct mfs_sb_info *sbi;
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| 88 | };
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| 89 |
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| 90 | /*MinixFS node in core*/
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| 91 | struct mfs_node {
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| 92 | union {
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| 93 | struct mfs_inode *ino;
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| 94 | struct mfs2_inode *ino2;
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| 95 | };
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| 96 |
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| 97 | struct mfs_instance *instance;
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| 98 | };
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| 99 |
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| 100 | extern void mfs_mounted(ipc_callid_t rid, ipc_call_t *request);
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| 101 | extern void mfs_mount(ipc_callid_t rid, ipc_call_t *request);
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| 102 | extern bool mfs_is_directory(fs_node_t *fsnode);
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| 103 | extern bool mfs_is_file(fs_node_t *fsnode);
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| 104 | extern devmap_handle_t mfs_device_get(fs_node_t *fsnode);
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| 105 | extern int mfs_get_instance(devmap_handle_t handle,
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| 106 | struct mfs_instance **instance);
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| 107 |
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| 108 | #endif
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| 109 |
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| 110 | /**
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| 111 | * @}
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| 112 | */
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| 113 |
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