refactor: reorganize source (wip)
This commit is contained in:
parent
ae2abce732
commit
b06aba1da8
1
.gitignore
vendored
1
.gitignore
vendored
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@ -39,3 +39,4 @@ test_base64
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stpdfs-fuse
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test_hchacha
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test_xchacha
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tools.stpd
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@ -1,4 +1,4 @@
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AM_CFLAGS = $(FUSE_CFLAGS) -I$(top_srcdir)/lib -I$(top_srcdir)
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AM_CFLAGS = $(FUSE_CFLAGS) -I$(top_srcdir)/lib -I$(top_srcdir)/include -I$(top_srcdir)
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LDADD = $(FUSE_LIBS) ../lib/libstpdfs.a
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bin_PROGRAMS = stpdfs-fuse
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@ -1,66 +1,35 @@
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/**
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* \file stupidfs.h
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*
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* StupidFS
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* StupidFS Filesystem
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*
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* ```
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* ┌──────────┬───────────┬──────┬───┬──────┬────┬───┬────┐
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* │Boot block│Super block│Inodes│...│Inodes│Data│...│Data│
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* └──────────┴───────────┴──────┴───┴──────┴────┴───┴────┘
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* ```
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*/
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#ifndef STPDFS_H
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# define STPDFS_H 1
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#ifndef STUPIDFS_H
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# define STUPIDFS_H 1
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# ifndef __KERNEL__
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# include <stdint.h>
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# include <stddef.h>
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# endif
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# define STPDFS_SB_MAGIC 0x44505453
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# define STPDFS_SB_REV STPDFS_SB_REV_1
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# define STPDFS_SB_REV_1 1
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# define STPDFS_INO_ROOTDIR 1
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# define STPDFS_BLOCK_SIZE 512
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# define STPDFS_NAME_MAX 28
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# define STPDFS_BLOCK_SIZE 512 /**< StupidFS block size */
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# define STPDFS_INODES_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_inode)))
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# define STPDFS_ZONES_PER_BLOCK (STPDFS_BLOCK_SIZE / sizeof(uint32_t))
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# define STPDFS_DIRENT_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_dirent)))
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# define STPDFS_NDIR 7
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# define STPDFS_ROOT_INO 1
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# define STPDFS_INO_FLAG_ALOC (1 << 15)
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# define STPDFS_INO_FLAG_LZP (1 << 1)
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# define STPDFS_INO_FLAG_ENC (1 << 2)
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# define STPDFS_SB_MAGIC 0x44505453 /**< Superblock magic number */
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# define STPDFS_SB_REV STPDFS_SB_REV_1 /**< current revision */
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# define STPDFS_SB_REV_1 1
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# define STPDFS_S_IFMT 0xF000
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# define STPDFS_S_IFSOCK 0xA000
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# define STPDFS_S_IFLNK 0xC000
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# define STPDFS_S_IFREG 0x8000
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# define STPDFS_S_IFBLK 0x6000
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# define STPDFS_S_IFDIR 0x4000
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# define STPDFS_BADINO 0 /**< StupidFS bad inode number */
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# define STPDFS_ROOTINO 1 /**< StupidFS root inode number */
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# define STPDFS_S_ISUID 0x0800
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# define STPDFS_S_ISGID 0x0400
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# define STPDFS_S_ISVTX 0x0200
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# define STPDFS_S_IRWXU 0x01C0
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# define STPDFS_S_IRUSR 0x0100
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# define STPDFS_S_IWUSR 0x0080
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# define STPDFS_S_IXUSR 0x0040
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# define STPDFS_S_IRWXG 0x0038
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# define STPDFS_S_IRGRP 0x0020
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# define STPDFS_S_IWGRP 0x0010
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# define STPDFS_S_IXGRP 0x0008
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# define STPDFS_S_IRWXO 0x0007
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# define STPDFS_S_IROTH 0x0004
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# define STPDFS_S_IWOTH 0x0002
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# define STPDFS_S_IXOTH 0x0001
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# define STPDFS_NAME_MAX 28 /**< Max filename length */
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/**
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* \brief free block list
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@ -89,8 +58,8 @@
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* ```
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*/
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struct stpdfs_free {
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uint32_t free[100];
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uint8_t nfree;
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uint32_t free[100]; /**< List of free block (0-99), index 0 point to next freelist */
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uint8_t nfree; /**< index */
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} __attribute__((packed));
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enum stpdfs_state {
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@ -104,36 +73,100 @@ enum stpdfs_state {
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*/
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struct stpdfs_sb {
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uint32_t magic; /**< MUST be \ref STPDFS_SB_MAGIC */
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uint32_t isize; /**< size in block of the I list */
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uint32_t fsize; /**< size in block of the entire volume */
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uint32_t isize; /**< Size in block of the I list */
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uint32_t fsize; /**< Size in block of the entire volume */
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struct stpdfs_free freelist; /**< \see stpdfs_free */
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uint8_t revision; /**< MUST be \ref STPDFS_SB_REV */
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uint16_t state; /**< \see stpdfs_state */
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uint64_t time; /**< last time the superblock was modified */
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uint64_t time; /**< Last time the superblock was modified */
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} __attribute__((packed));
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#define STPDFS_SB_SIZE sizeof(struct stpdfs_sb)
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/**
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* \brief StupidFS I-node
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*
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* ```
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* ┌────────┐
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* │ │
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* ┌───────►│ │
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* │ │ │
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* ┌──────┐ Direct│ └────────┘
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* │zone 0├───────┘
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* ├──────┤
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* │... │
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* ├──────┤ ┌────────┐ ┌────────┐
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* │zone 6│ │ ├─────►│ │
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* ├──────┤ Indirect │ │ │ │
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* │zone 7├─────────►│ │ │ │
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* ├──────┤ └────────┘ └────────┘
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* │zone 8├───────┐
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* ├──────┤ │Double indirect┌────────┐ ┌────────┐ ┌────────┐
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* │zone 9│ └──────────────►│ ├───►│ ├───►│ │
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* └──┬───┘ │ │ │ │ │ │
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* │ │ │ │ │ │ │
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* │ └────────┘ └────────┘ └────────┘
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* │ Triple indirect ┌────────┐
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* └────────────────►│ │ ┌────────┐ ┌────────┐ ┌────────┐
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* │ ├───►│ │ │ │ │ │
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* │ │ │ ├─────►│ ├─────►│ │
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* └────────┘ │ │ │ │ │ │
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* └────────┘ └────────┘ └────────┘
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* ```
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*/
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struct stpdfs_inode {
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uint16_t mode; /**< file mode */
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uint16_t nlink; /**< link count */
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uint16_t uid; /**< owner user id */
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uint16_t gid; /**< group id */
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uint16_t flags;
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uint32_t size;
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uint16_t mode; /**< File mode */
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uint16_t nlink; /**< Link count */
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uint16_t uid; /**< Owner user id */
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uint16_t gid; /**< Group id */
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uint16_t flags; /** File flags */
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uint32_t size; /** Data size in byte */
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uint32_t zones[10];
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uint64_t actime;
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uint64_t modtime;
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uint64_t actime; /**< Access time */
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uint64_t modtime; /**< Modification time */
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} __attribute__((packed));
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#define STPDFS_INODE_SIZE sizeof(struct inode)
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# define STPDFS_NDIR 7 /**< Number of direct block */
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# define STPDFS_INO_FLAG_ALOC (1 << 15)
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# define STPDFS_INO_FLAG_LZP (1 << 1)
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# define STPDFS_INO_FLAG_ENC (1 << 2)
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# define STPDFS_S_IFMT 0xF000
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# define STPDFS_S_IFSOCK 0xA000
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# define STPDFS_S_IFLNK 0xC000
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# define STPDFS_S_IFREG 0x8000
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# define STPDFS_S_IFBLK 0x6000
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# define STPDFS_S_IFDIR 0x4000
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# define STPDFS_S_ISUID 0x0800
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# define STPDFS_S_ISGID 0x0400
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# define STPDFS_S_ISVTX 0x0200
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# define STPDFS_S_IRWXU 0x01C0
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# define STPDFS_S_IRUSR 0x0100
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# define STPDFS_S_IWUSR 0x0080
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# define STPDFS_S_IXUSR 0x0040
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# define STPDFS_S_IRWXG 0x0038
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# define STPDFS_S_IRGRP 0x0020
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# define STPDFS_S_IWGRP 0x0010
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# define STPDFS_S_IXGRP 0x0008
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# define STPDFS_S_IRWXO 0x0007
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# define STPDFS_S_IROTH 0x0004
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# define STPDFS_S_IWOTH 0x0002
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# define STPDFS_S_IXOTH 0x0001
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/**
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* \brief StupidFS directory entry
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*/
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struct stpdfs_dirent {
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uint32_t inode;
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char filename[STPDFS_NAME_MAX];
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uint32_t inode; /**< inode containing file */
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char filename[STPDFS_NAME_MAX]; /** null terminated file name (\see STPDFS_NAME_MAX) */
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};
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#define STPDFS_DIRENT_SIZE sizeof(struct stpdfs_dirent)
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#endif /* !STPDFS_H */
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#endif /* !STPIDFS_H */
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@ -1,4 +1,5 @@
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noinst_LIBRARIES = libstpdfs.a
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AM_CFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/lib -I$(top_srcdir)
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libstpdfs_a_SOURCES = block.c \
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inode.c \
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dir.c \
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126
lib/stpdfs.h
126
lib/stpdfs.h
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@ -11,134 +11,10 @@
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#ifndef STPDFS_H
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# define STPDFS_H 1
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# include <stupidfs.h>
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# include <stdint.h>
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# include <stddef.h>
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# define STPDFS_SB_MAGIC 0x44505453
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# define STPDFS_SB_REV STPDFS_SB_REV_1
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# define STPDFS_SB_REV_1 1
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# define STPDFS_INO_ROOTDIR 1
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# define STPDFS_BLOCK_SIZE_BITS 9
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# define STPDFS_BLOCK_SIZE (1 << STPDFS_BLOCK_SIZE_BITS)
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# define STPDFS_NAME_MAX 28
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# define STPDFS_INODES_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_inode)))
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# define STPDFS_ZONES_PER_BLOCK (STPDFS_BLOCK_SIZE / sizeof(uint32_t))
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# define STPDFS_DIRENT_PER_BLOCK (STPDFS_BLOCK_SIZE / (sizeof(struct stpdfs_dirent)))
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# define STPDFS_NDIR 7
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# define STPDFS_ROOT_INO 1
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# define STPDFS_INO_FLAG_ALOC (1 << 15)
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# define STPDFS_INO_FLAG_LARGE (1 << 0)
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# define STPDFS_INO_FLAG_LZP (1 << 1)
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# define STPDFS_INO_FLAG_ENC (1 << 2)
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# define STPDFS_S_IFMT 0xF000
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# define STPDFS_S_IFSOCK 0xA000
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# define STPDFS_S_IFLNK 0xC000
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# define STPDFS_S_IFREG 0x8000
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# define STPDFS_S_IFBLK 0x6000
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# define STPDFS_S_IFDIR 0x4000
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# define STPDFS_S_ISUID 0x0800
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# define STPDFS_S_ISGID 0x0400
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# define STPDFS_S_ISVTX 0x0200
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# define STPDFS_S_IRWXU 0x01C0
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# define STPDFS_S_IRUSR 0x0100
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# define STPDFS_S_IWUSR 0x0080
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# define STPDFS_S_IXUSR 0x0040
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# define STPDFS_S_IRWXG 0x0038
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# define STPDFS_S_IRGRP 0x0020
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# define STPDFS_S_IWGRP 0x0010
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# define STPDFS_S_IXGRP 0x0008
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# define STPDFS_S_IRWXO 0x0007
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# define STPDFS_S_IROTH 0x0004
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# define STPDFS_S_IWOTH 0x0002
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# define STPDFS_S_IXOTH 0x0001
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typedef uint32_t zone_t; /**< zone number */
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typedef uint32_t block_t; /**< block number */
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/**
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* \brief free block list
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* ```
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* ┌──────────┐
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* │ block 99 │
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* ├──────────┤
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* │ block 98 │
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* ├──────────┤
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* │ ... │
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* ├──────────┤
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* │ block 2 │
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* ├──────────┤
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* │ block 1 │
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* ├──────────┤ ┌──────────┐
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* │ block 0 ├───►│ block 99 │
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* └──────────┘ ├──────────┤
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* │ ... │
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* ├──────────┤ ┌──────────┐
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* │ block 0 ├──►│ block 99 │
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* └──────────┘ ├──────────┤
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* │ ... │
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* ├──────────┤
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* │ block 0 │
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* └──────────┘
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* ```
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*/
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struct stpdfs_free {
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block_t free[100];
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uint8_t nfree;
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} __attribute__((packed));
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enum stpdfs_state {
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STPDFS_CLEANLY_UNMOUNTED = 0,
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STPDFS_ERROR = 1,
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STPDFS_DIRTY = 1,
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};
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/**
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* \brief StupidFS Superblock
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*/
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struct stpdfs_sb {
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uint32_t magic; /**< MUST be \ref STPDFS_SB_MAGIC */
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uint32_t isize; /**< size in block of the I list */
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uint32_t fsize; /**< size in block of the entire volume */
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struct stpdfs_free freelist; /**< \see stpdfs_free */
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uint8_t revision; /**< MUST be \ref STPDFS_SB_REV */
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uint16_t state; /**< \see stpdfs_state */
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uint64_t time; /**< last time the superblock was modified */
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} __attribute__((packed));
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#define STPDFS_SB_SIZE sizeof(struct stpdfs_sb)
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/**
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* \brief StupidFS I-node
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*/
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struct stpdfs_inode {
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uint16_t mode; /**< file mode */
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uint16_t nlink; /**< link count */
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uint16_t uid; /**< owner user id */
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uint16_t gid; /**< group id */
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uint16_t flags;
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uint32_t size;
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zone_t zones[10];
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uint64_t actime;
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uint64_t modtime;
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} __attribute__((packed));
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#define STPDFS_INODE_SIZE sizeof(struct inode)
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struct stpdfs_dirent {
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uint32_t inode;
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char filename[STPDFS_NAME_MAX];
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};
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/*
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* API
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*/
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@ -1,4 +1,4 @@
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AM_CPPFLAGS = -I$(top_srcdir)/lib
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AM_CPPFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir)/include
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TESTS = test_lzp test_hchacha test_xchacha
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check_PROGRAMS = test_lzp test_hchacha test_xchacha
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@ -1,4 +1,4 @@
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AM_CFLAGS = -I$(top_srcdir)/lib -I$(top_srcdir)
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AM_CFLAGS = -I$(top_srcdir)/include -I$(top_srcdir)/lib -I$(top_srcdir)
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LDADD = ../lib/libstpdfs.a
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bin_PROGRAMS = mkfs.stpd tools.stpd
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@ -2,12 +2,13 @@
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <stpdfs.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <time.h>
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#include <stupidfs.h>
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#include <stpdfs.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif /* HAVE_CONFIG_H */
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@ -146,20 +147,20 @@ mkfs()
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/* create root dir */
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stpdfs_read(fd, 2, &inds, sizeof(struct stpdfs_inode) * STPDFS_INODES_PER_BLOCK);
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inds[STPDFS_INO_ROOTDIR].modtime = time(NULL);
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inds[STPDFS_INO_ROOTDIR].actime = time(NULL);
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inds[STPDFS_INO_ROOTDIR].size = sizeof(struct stpdfs_dirent) * 2;
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inds[STPDFS_INO_ROOTDIR].flags = STPDFS_INO_FLAG_ALOC;
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inds[STPDFS_INO_ROOTDIR].mode = STPDFS_S_IFDIR | STPDFS_S_IRUSR | STPDFS_S_IWUSR | STPDFS_S_IXUSR | STPDFS_S_IRGRP | STPDFS_S_IXGRP | STPDFS_S_IXOTH;
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inds[STPDFS_INO_ROOTDIR].zones[0] = stpdfs_alloc_block(fd, &super);
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inds[STPDFS_INO_ROOTDIR].size = sizeof(struct stpdfs_dirent) * 2;
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stpdfs_read(fd, inds[STPDFS_INO_ROOTDIR].zones[0], rootdirent, sizeof(struct stpdfs_dirent) * 2);
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inds[STPDFS_ROOTINO].modtime = time(NULL);
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inds[STPDFS_ROOTINO].actime = time(NULL);
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inds[STPDFS_ROOTINO].size = sizeof(struct stpdfs_dirent) * 2;
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inds[STPDFS_ROOTINO].flags = STPDFS_INO_FLAG_ALOC;
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inds[STPDFS_ROOTINO].mode = STPDFS_S_IFDIR | STPDFS_S_IRUSR | STPDFS_S_IWUSR | STPDFS_S_IXUSR | STPDFS_S_IRGRP | STPDFS_S_IXGRP | STPDFS_S_IXOTH;
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inds[STPDFS_ROOTINO].zones[0] = stpdfs_alloc_block(fd, &super);
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inds[STPDFS_ROOTINO].size = sizeof(struct stpdfs_dirent) * 2;
|
||||
stpdfs_read(fd, inds[STPDFS_ROOTINO].zones[0], rootdirent, sizeof(struct stpdfs_dirent) * 2);
|
||||
strcpy(rootdirent[0].filename, ".");
|
||||
rootdirent[1].inode = 1;
|
||||
strcpy(rootdirent[1].filename, "..");
|
||||
rootdirent[1].inode = 1;
|
||||
inds[STPDFS_INO_ROOTDIR].nlink += 2;
|
||||
stpdfs_write(fd, inds[STPDFS_INO_ROOTDIR].zones[0], rootdirent, sizeof(struct stpdfs_dirent) * 2);
|
||||
inds[STPDFS_ROOTINO].nlink += 2;
|
||||
stpdfs_write(fd, inds[STPDFS_ROOTINO].zones[0], rootdirent, sizeof(struct stpdfs_dirent) * 2);
|
||||
stpdfs_write(fd, 2, &inds, sizeof(struct stpdfs_inode) * STPDFS_INODES_PER_BLOCK);
|
||||
|
||||
/* write super block */
|
||||
|
|
|
|||
BIN
tools/tools.stpd
BIN
tools/tools.stpd
Binary file not shown.
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Reference in a new issue