From 9c754053b07a724bdd98d039f34899d6a49115b7 Mon Sep 17 00:00:00 2001 From: bigbiff bigbiff Date: Wed, 9 Jan 2013 09:09:08 -0500 Subject: Add libtar to TWRP instead of using busybox tar Add proper mkdosfs tool Add fuse to TWRP Add experimental exfat-fuse to TWRP Convert all system() functions to use new Exec_Cmd function --- exfat/libexfat/exfat.h | 215 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 exfat/libexfat/exfat.h (limited to 'exfat/libexfat/exfat.h') diff --git a/exfat/libexfat/exfat.h b/exfat/libexfat/exfat.h new file mode 100644 index 000000000..6f152670d --- /dev/null +++ b/exfat/libexfat/exfat.h @@ -0,0 +1,215 @@ +/* + exfat.h (29.08.09) + Definitions of structures and constants used in exFAT file system + implementation. + + Copyright (C) 2010-2012 Andrew Nayenko + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#ifndef EXFAT_H_INCLUDED +#define EXFAT_H_INCLUDED + +#include +#include +#include +#include +#include +#include +#include "exfatfs.h" +#include "version.h" + +#define EXFAT_NAME_MAX 256 +#define EXFAT_ATTRIB_CONTIGUOUS 0x10000 +#define EXFAT_ATTRIB_CACHED 0x20000 +#define EXFAT_ATTRIB_DIRTY 0x40000 +#define EXFAT_ATTRIB_UNLINKED 0x80000 +#define IS_CONTIGUOUS(node) (((node).flags & EXFAT_ATTRIB_CONTIGUOUS) != 0) +#define SECTOR_SIZE(sb) (1 << (sb).sector_bits) +#define CLUSTER_SIZE(sb) (SECTOR_SIZE(sb) << (sb).spc_bits) +#define CLUSTER_INVALID(c) \ + ((c) < EXFAT_FIRST_DATA_CLUSTER || (c) > EXFAT_LAST_DATA_CLUSTER) + +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#define DIV_ROUND_UP(x, d) (((x) + (d) - 1) / (d)) +#define ROUND_UP(x, d) (DIV_ROUND_UP(x, d) * (d)) + +#define BMAP_GET(bitmap, index) \ + (((uint8_t*) bitmap)[(index) / 8] & (1u << ((index) % 8))) +#define BMAP_SET(bitmap, index) \ + ((uint8_t*) bitmap)[(index) / 8] |= (1u << ((index) % 8)) +#define BMAP_CLR(bitmap, index) \ + ((uint8_t*) bitmap)[(index) / 8] &= ~(1u << ((index) % 8)) + +struct exfat_node +{ + struct exfat_node* parent; + struct exfat_node* child; + struct exfat_node* next; + struct exfat_node* prev; + + int references; + uint32_t fptr_index; + cluster_t fptr_cluster; + cluster_t entry_cluster; + off64_t entry_offset; + cluster_t start_cluster; + int flags; + uint64_t size; + time_t mtime, atime; + le16_t name[EXFAT_NAME_MAX + 1]; +}; + +enum exfat_mode +{ + EXFAT_MODE_RO, + EXFAT_MODE_RW, + EXFAT_MODE_ANY, +}; + +struct exfat_dev; + +struct exfat +{ + struct exfat_dev* dev; + struct exfat_super_block* sb; + le16_t* upcase; + size_t upcase_chars; + struct exfat_node* root; + struct + { + cluster_t start_cluster; + uint32_t size; /* in bits */ + uint8_t* chunk; + uint32_t chunk_size; /* in bits */ + bool dirty; + } + cmap; + char label[EXFAT_ENAME_MAX * 6 + 1]; /* a character can occupy up to + 6 bytes in UTF-8 */ + void* zero_cluster; + int dmask, fmask; + uid_t uid; + gid_t gid; + int ro; + bool noatime; +}; + +/* in-core nodes iterator */ +struct exfat_iterator +{ + struct exfat_node* parent; + struct exfat_node* current; +}; + +struct exfat_human_bytes +{ + uint64_t value; + const char* unit; +}; + +extern int exfat_errors; + +void exfat_bug(const char* format, ...) + __attribute__((format(printf, 1, 2), noreturn)); +void exfat_error(const char* format, ...) + __attribute__((format(printf, 1, 2))); +void exfat_warn(const char* format, ...) + __attribute__((format(printf, 1, 2))); +void exfat_debug(const char* format, ...) + __attribute__((format(printf, 1, 2))); + +struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode); +int exfat_close(struct exfat_dev* dev); +int exfat_fsync(struct exfat_dev* dev); +enum exfat_mode exfat_get_mode(const struct exfat_dev* dev); +off64_t exfat_get_size(const struct exfat_dev* dev); +off64_t exfat_seek(struct exfat_dev* dev, off64_t offset, int whence); +ssize_t exfat_read(struct exfat_dev* dev, void* buffer, size_t size); +ssize_t exfat_write(struct exfat_dev* dev, const void* buffer, size_t size); +void exfat_pread(struct exfat_dev* dev, void* buffer, size_t size, + off64_t offset); +void exfat_pwrite(struct exfat_dev* dev, const void* buffer, size_t size, + off64_t offset); +ssize_t exfat_generic_pread(const struct exfat* ef, struct exfat_node* node, + void* buffer, size_t size, off64_t offset); +ssize_t exfat_generic_pwrite(struct exfat* ef, struct exfat_node* node, + const void* buffer, size_t size, off64_t offset); + +int exfat_opendir(struct exfat* ef, struct exfat_node* dir, + struct exfat_iterator* it); +void exfat_closedir(struct exfat* ef, struct exfat_iterator* it); +struct exfat_node* exfat_readdir(struct exfat* ef, struct exfat_iterator* it); +int exfat_lookup(struct exfat* ef, struct exfat_node** node, + const char* path); +int exfat_split(struct exfat* ef, struct exfat_node** parent, + struct exfat_node** node, le16_t* name, const char* path); + +off64_t exfat_c2o(const struct exfat* ef, cluster_t cluster); +cluster_t exfat_next_cluster(const struct exfat* ef, + const struct exfat_node* node, cluster_t cluster); +cluster_t exfat_advance_cluster(const struct exfat* ef, + struct exfat_node* node, uint32_t count); +void exfat_flush_cmap(struct exfat* ef); +int exfat_truncate(struct exfat* ef, struct exfat_node* node, uint64_t size); +uint32_t exfat_count_free_clusters(const struct exfat* ef); +int exfat_find_used_sectors(const struct exfat* ef, off64_t* a, off64_t* b); + +void exfat_stat(const struct exfat* ef, const struct exfat_node* node, + struct stat* stbuf); +void exfat_get_name(const struct exfat_node* node, char* buffer, size_t n); +uint16_t exfat_start_checksum(const struct exfat_entry_meta1* entry); +uint16_t exfat_add_checksum(const void* entry, uint16_t sum); +le16_t exfat_calc_checksum(const struct exfat_entry_meta1* meta1, + const struct exfat_entry_meta2* meta2, const le16_t* name); +uint32_t exfat_vbr_start_checksum(const void* sector, size_t size); +uint32_t exfat_vbr_add_checksum(const void* sector, size_t size, uint32_t sum); +le16_t exfat_calc_name_hash(const struct exfat* ef, const le16_t* name); +void exfat_humanize_bytes(uint64_t value, struct exfat_human_bytes* hb); +void exfat_print_info(const struct exfat_super_block* sb, + uint32_t free_clusters); + +int utf16_to_utf8(char* output, const le16_t* input, size_t outsize, + size_t insize); +int utf8_to_utf16(le16_t* output, const char* input, size_t outsize, + size_t insize); +size_t utf16_length(const le16_t* str); + +struct exfat_node* exfat_get_node(struct exfat_node* node); +void exfat_put_node(struct exfat* ef, struct exfat_node* node); +int exfat_cache_directory(struct exfat* ef, struct exfat_node* dir); +void exfat_reset_cache(struct exfat* ef); +void exfat_flush_node(struct exfat* ef, struct exfat_node* node); +int exfat_unlink(struct exfat* ef, struct exfat_node* node); +int exfat_rmdir(struct exfat* ef, struct exfat_node* node); +int exfat_mknod(struct exfat* ef, const char* path); +int exfat_mkdir(struct exfat* ef, const char* path); +int exfat_rename(struct exfat* ef, const char* old_path, const char* new_path); +void exfat_utimes(struct exfat_node* node, const struct timespec tv[2]); +void exfat_update_atime(struct exfat_node* node); +void exfat_update_mtime(struct exfat_node* node); +const char* exfat_get_label(struct exfat* ef); +int exfat_set_label(struct exfat* ef, const char* label); + +int exfat_mount(struct exfat* ef, const char* spec, const char* options); +void exfat_unmount(struct exfat* ef); + +time_t exfat_exfat2unix(le16_t date, le16_t time, uint8_t centisec); +void exfat_unix2exfat(time_t unix_time, le16_t* date, le16_t* time, + uint8_t* centisec); +void exfat_tzset(void); + +#endif /* ifndef EXFAT_H_INCLUDED */ -- cgit v1.2.3