5209701add
* Toolbox: fix null pointer dereference in manchester decoder. * FuriHal: use MPU to protect from null pointer dereference, replace flash driver with our own implementation.
690 lines
21 KiB
C
690 lines
21 KiB
C
#include "storage-int.h"
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#include <lfs.h>
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#include <furi-hal.h>
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#define TAG "storage-int"
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#define STORAGE_PATH "/int"
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typedef struct {
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const size_t start_address;
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const size_t start_page;
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struct lfs_config config;
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lfs_t lfs;
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} LFSData;
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typedef struct {
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void* data;
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bool open;
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} LFSHandle;
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static LFSHandle* lfs_handle_alloc_file() {
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LFSHandle* handle = furi_alloc(sizeof(LFSHandle));
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handle->data = furi_alloc(sizeof(lfs_file_t));
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return handle;
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}
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static LFSHandle* lfs_handle_alloc_dir() {
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LFSHandle* handle = furi_alloc(sizeof(LFSHandle));
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handle->data = furi_alloc(sizeof(lfs_dir_t));
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return handle;
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}
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/* INTERNALS */
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static lfs_dir_t* lfs_handle_get_dir(LFSHandle* handle) {
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return handle->data;
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}
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static lfs_file_t* lfs_handle_get_file(LFSHandle* handle) {
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return handle->data;
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}
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static void lfs_handle_free(LFSHandle* handle) {
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free(handle->data);
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free(handle);
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}
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static void lfs_handle_set_open(LFSHandle* handle) {
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handle->open = true;
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}
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static bool lfs_handle_is_open(LFSHandle* handle) {
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return handle->open;
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}
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static lfs_t* lfs_get_from_storage(StorageData* storage) {
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return &((LFSData*)storage->data)->lfs;
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}
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static LFSData* lfs_data_get_from_storage(StorageData* storage) {
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return (LFSData*)storage->data;
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}
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static int storage_int_device_read(
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const struct lfs_config* c,
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lfs_block_t block,
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lfs_off_t off,
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void* buffer,
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lfs_size_t size) {
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LFSData* lfs_data = c->context;
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size_t address = lfs_data->start_address + block * c->block_size + off;
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FURI_LOG_D(
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TAG,
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"Device read: block %d, off %d, buffer: %p, size %d, translated address: %p",
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block,
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off,
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buffer,
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size,
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address);
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memcpy(buffer, (void*)address, size);
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return 0;
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}
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static int storage_int_device_prog(
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const struct lfs_config* c,
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lfs_block_t block,
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lfs_off_t off,
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const void* buffer,
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lfs_size_t size) {
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LFSData* lfs_data = c->context;
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size_t address = lfs_data->start_address + block * c->block_size + off;
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FURI_LOG_D(
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TAG,
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"Device prog: block %d, off %d, buffer: %p, size %d, translated address: %p",
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block,
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off,
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buffer,
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size,
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address);
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int ret = 0;
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while(size > 0) {
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if(!furi_hal_flash_write_dword(address, *(uint64_t*)buffer)) {
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ret = -1;
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break;
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}
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address += c->prog_size;
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buffer += c->prog_size;
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size -= c->prog_size;
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}
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return ret;
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}
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static int storage_int_device_erase(const struct lfs_config* c, lfs_block_t block) {
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LFSData* lfs_data = c->context;
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size_t page = lfs_data->start_page + block;
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FURI_LOG_D(TAG, "Device erase: page %d, translated page: %x", block, page);
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if(furi_hal_flash_erase(page)) {
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return 0;
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} else {
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return -1;
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}
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}
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static int storage_int_device_sync(const struct lfs_config* c) {
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FURI_LOG_D(TAG, "Device sync: skipping, cause ");
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return 0;
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}
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static LFSData* storage_int_lfs_data_alloc() {
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LFSData* lfs_data = furi_alloc(sizeof(LFSData));
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// Internal storage start address
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*(size_t*)(&lfs_data->start_address) = furi_hal_flash_get_free_page_start_address();
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*(size_t*)(&lfs_data->start_page) =
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(lfs_data->start_address - furi_hal_flash_get_base()) / furi_hal_flash_get_page_size();
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// LFS configuration
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// Glue and context
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lfs_data->config.context = lfs_data;
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lfs_data->config.read = storage_int_device_read;
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lfs_data->config.prog = storage_int_device_prog;
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lfs_data->config.erase = storage_int_device_erase;
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lfs_data->config.sync = storage_int_device_sync;
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// Block device description
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lfs_data->config.read_size = furi_hal_flash_get_read_block_size();
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lfs_data->config.prog_size = furi_hal_flash_get_write_block_size();
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lfs_data->config.block_size = furi_hal_flash_get_page_size();
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lfs_data->config.block_count = furi_hal_flash_get_free_page_count();
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lfs_data->config.block_cycles = furi_hal_flash_get_cycles_count();
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lfs_data->config.cache_size = 16;
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lfs_data->config.lookahead_size = 16;
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return lfs_data;
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};
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static void storage_int_lfs_mount(LFSData* lfs_data, StorageData* storage) {
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int err;
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FuriHalBootloaderFlag bootloader_flags = furi_hal_bootloader_get_flags();
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lfs_t* lfs = &lfs_data->lfs;
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if(bootloader_flags & FuriHalBootloaderFlagFactoryReset) {
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// Factory reset
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err = lfs_format(lfs, &lfs_data->config);
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if(err == 0) {
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FURI_LOG_I(TAG, "Factory reset: Format successful, trying to mount");
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furi_hal_bootloader_set_flags(bootloader_flags & ~FuriHalBootloaderFlagFactoryReset);
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err = lfs_mount(lfs, &lfs_data->config);
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if(err == 0) {
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FURI_LOG_I(TAG, "Factory reset: Mounted");
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storage->status = StorageStatusOK;
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} else {
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FURI_LOG_E(TAG, "Factory reset: Mount after format failed");
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storage->status = StorageStatusNotMounted;
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}
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} else {
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FURI_LOG_E(TAG, "Factory reset: Format failed");
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storage->status = StorageStatusNoFS;
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}
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} else {
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// Normal
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err = lfs_mount(lfs, &lfs_data->config);
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if(err == 0) {
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FURI_LOG_I(TAG, "Mounted");
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storage->status = StorageStatusOK;
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} else {
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FURI_LOG_E(TAG, "Mount failed, formatting");
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err = lfs_format(lfs, &lfs_data->config);
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if(err == 0) {
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FURI_LOG_I(TAG, "Format successful, trying to mount");
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err = lfs_mount(lfs, &lfs_data->config);
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if(err == 0) {
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FURI_LOG_I(TAG, "Mounted");
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storage->status = StorageStatusOK;
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} else {
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FURI_LOG_E(TAG, "Mount after format failed");
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storage->status = StorageStatusNotMounted;
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}
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} else {
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FURI_LOG_E(TAG, "Format failed");
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storage->status = StorageStatusNoFS;
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}
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}
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}
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}
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/****************** Common Functions ******************/
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static FS_Error storage_int_parse_error(int error) {
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FS_Error result = FSE_INTERNAL;
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if(error >= LFS_ERR_OK) {
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result = FSE_OK;
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} else {
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switch(error) {
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case LFS_ERR_IO:
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result = FSE_INTERNAL;
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break;
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case LFS_ERR_CORRUPT:
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result = FSE_INTERNAL;
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break;
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case LFS_ERR_NOENT:
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result = FSE_NOT_EXIST;
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break;
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case LFS_ERR_EXIST:
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result = FSE_EXIST;
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break;
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case LFS_ERR_NOTDIR:
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result = FSE_INVALID_NAME;
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break;
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case LFS_ERR_ISDIR:
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result = FSE_INVALID_NAME;
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break;
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case LFS_ERR_NOTEMPTY:
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result = FSE_DENIED;
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break;
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case LFS_ERR_BADF:
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result = FSE_INVALID_NAME;
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break;
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case LFS_ERR_FBIG:
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result = FSE_INTERNAL;
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break;
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case LFS_ERR_INVAL:
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result = FSE_INVALID_PARAMETER;
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break;
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case LFS_ERR_NOSPC:
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result = FSE_INTERNAL;
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break;
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case LFS_ERR_NOMEM:
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result = FSE_INTERNAL;
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break;
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case LFS_ERR_NOATTR:
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result = FSE_INVALID_PARAMETER;
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break;
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case LFS_ERR_NAMETOOLONG:
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result = FSE_INVALID_NAME;
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break;
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default:
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break;
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}
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}
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return result;
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}
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/******************* File Functions *******************/
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static bool storage_int_file_open(
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void* ctx,
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File* file,
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const char* path,
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FS_AccessMode access_mode,
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FS_OpenMode open_mode) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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int flags = 0;
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if(access_mode & FSAM_READ) flags |= LFS_O_RDONLY;
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if(access_mode & FSAM_WRITE) flags |= LFS_O_WRONLY;
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if(open_mode & FSOM_OPEN_EXISTING) flags |= 0;
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if(open_mode & FSOM_OPEN_ALWAYS) flags |= LFS_O_CREAT;
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if(open_mode & FSOM_OPEN_APPEND) flags |= LFS_O_CREAT | LFS_O_APPEND;
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if(open_mode & FSOM_CREATE_NEW) flags |= LFS_O_CREAT | LFS_O_EXCL;
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if(open_mode & FSOM_CREATE_ALWAYS) flags |= LFS_O_CREAT | LFS_O_TRUNC;
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LFSHandle* handle = lfs_handle_alloc_file();
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storage_set_storage_file_data(file, handle, storage);
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file->internal_error_id = lfs_file_open(lfs, lfs_handle_get_file(handle), path, flags);
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if(file->internal_error_id >= LFS_ERR_OK) {
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lfs_handle_set_open(handle);
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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return (file->error_id == FSE_OK);
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}
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static bool storage_int_file_close(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id = lfs_file_close(lfs, lfs_handle_get_file(handle));
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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lfs_handle_free(handle);
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return (file->error_id == FSE_OK);
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}
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static uint16_t
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storage_int_file_read(void* ctx, File* file, void* buff, uint16_t const bytes_to_read) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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uint16_t bytes_readed = 0;
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id =
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lfs_file_read(lfs, lfs_handle_get_file(handle), buff, bytes_to_read);
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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if(file->error_id == FSE_OK) {
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bytes_readed = file->internal_error_id;
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file->internal_error_id = 0;
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}
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return bytes_readed;
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}
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static uint16_t
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storage_int_file_write(void* ctx, File* file, const void* buff, uint16_t const bytes_to_write) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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uint16_t bytes_written = 0;
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id =
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lfs_file_write(lfs, lfs_handle_get_file(handle), buff, bytes_to_write);
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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if(file->error_id == FSE_OK) {
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bytes_written = file->internal_error_id;
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file->internal_error_id = 0;
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}
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return bytes_written;
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}
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static bool
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storage_int_file_seek(void* ctx, File* file, const uint32_t offset, const bool from_start) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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if(from_start) {
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file->internal_error_id =
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lfs_file_seek(lfs, lfs_handle_get_file(handle), offset, LFS_SEEK_SET);
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} else {
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file->internal_error_id =
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lfs_file_seek(lfs, lfs_handle_get_file(handle), offset, LFS_SEEK_CUR);
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}
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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return (file->error_id == FSE_OK);
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}
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static uint64_t storage_int_file_tell(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id = lfs_file_tell(lfs, lfs_handle_get_file(handle));
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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int32_t position = 0;
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if(file->error_id == FSE_OK) {
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position = file->internal_error_id;
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file->internal_error_id = 0;
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}
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return position;
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}
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static bool storage_int_file_truncate(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id = lfs_file_tell(lfs, lfs_handle_get_file(handle));
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file->error_id = storage_int_parse_error(file->internal_error_id);
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if(file->error_id == FSE_OK) {
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uint32_t position = file->internal_error_id;
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file->internal_error_id =
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lfs_file_truncate(lfs, lfs_handle_get_file(handle), position);
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file->error_id = storage_int_parse_error(file->internal_error_id);
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}
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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file->error_id = storage_int_parse_error(file->internal_error_id);
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}
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return (file->error_id == FSE_OK);
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}
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static bool storage_int_file_sync(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id = lfs_file_sync(lfs, lfs_handle_get_file(handle));
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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return (file->error_id == FSE_OK);
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}
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static uint64_t storage_int_file_size(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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if(lfs_handle_is_open(handle)) {
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file->internal_error_id = lfs_file_size(lfs, lfs_handle_get_file(handle));
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} else {
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file->internal_error_id = LFS_ERR_BADF;
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}
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file->error_id = storage_int_parse_error(file->internal_error_id);
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uint32_t size = 0;
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if(file->error_id == FSE_OK) {
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size = file->internal_error_id;
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file->internal_error_id = 0;
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}
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return size;
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}
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static bool storage_int_file_eof(void* ctx, File* file) {
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StorageData* storage = ctx;
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lfs_t* lfs = lfs_get_from_storage(storage);
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LFSHandle* handle = storage_get_storage_file_data(file, storage);
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bool eof = true;
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if(lfs_handle_is_open(handle)) {
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int32_t position = lfs_file_tell(lfs, lfs_handle_get_file(handle));
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int32_t size = lfs_file_size(lfs, lfs_handle_get_file(handle));
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|
if(position < 0) {
|
|
file->internal_error_id = position;
|
|
} else if(size < 0) {
|
|
file->internal_error_id = size;
|
|
} else {
|
|
file->internal_error_id = LFS_ERR_OK;
|
|
eof = (position >= size);
|
|
}
|
|
} else {
|
|
file->internal_error_id = LFS_ERR_BADF;
|
|
}
|
|
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
return eof;
|
|
}
|
|
|
|
/******************* Dir Functions *******************/
|
|
|
|
static bool storage_int_dir_open(void* ctx, File* file, const char* path) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
|
|
LFSHandle* handle = lfs_handle_alloc_dir();
|
|
storage_set_storage_file_data(file, handle, storage);
|
|
|
|
file->internal_error_id = lfs_dir_open(lfs, lfs_handle_get_dir(handle), path);
|
|
if(file->internal_error_id >= LFS_ERR_OK) {
|
|
lfs_handle_set_open(handle);
|
|
}
|
|
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
return (file->error_id == FSE_OK);
|
|
}
|
|
|
|
static bool storage_int_dir_close(void* ctx, File* file) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
LFSHandle* handle = storage_get_storage_file_data(file, storage);
|
|
|
|
if(lfs_handle_is_open(handle)) {
|
|
file->internal_error_id = lfs_dir_close(lfs, lfs_handle_get_dir(handle));
|
|
} else {
|
|
file->internal_error_id = LFS_ERR_BADF;
|
|
}
|
|
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
lfs_handle_free(handle);
|
|
return (file->error_id == FSE_OK);
|
|
}
|
|
|
|
static bool storage_int_dir_read(
|
|
void* ctx,
|
|
File* file,
|
|
FileInfo* fileinfo,
|
|
char* name,
|
|
const uint16_t name_length) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
LFSHandle* handle = storage_get_storage_file_data(file, storage);
|
|
|
|
if(lfs_handle_is_open(handle)) {
|
|
struct lfs_info _fileinfo;
|
|
|
|
// LFS returns virtual directories "." and "..", so we read until we get something meaningful or an empty string
|
|
do {
|
|
file->internal_error_id = lfs_dir_read(lfs, lfs_handle_get_dir(handle), &_fileinfo);
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
} while(strcmp(_fileinfo.name, ".") == 0 || strcmp(_fileinfo.name, "..") == 0);
|
|
|
|
if(fileinfo != NULL) {
|
|
fileinfo->size = _fileinfo.size;
|
|
fileinfo->flags = 0;
|
|
if(_fileinfo.type & LFS_TYPE_DIR) fileinfo->flags |= FSF_DIRECTORY;
|
|
}
|
|
|
|
if(name != NULL) {
|
|
snprintf(name, name_length, "%s", _fileinfo.name);
|
|
}
|
|
|
|
// set FSE_NOT_EXIST error on end of directory
|
|
if(file->internal_error_id == 0) {
|
|
file->error_id = FSE_NOT_EXIST;
|
|
}
|
|
} else {
|
|
file->internal_error_id = LFS_ERR_BADF;
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
}
|
|
|
|
return (file->error_id == FSE_OK);
|
|
}
|
|
|
|
static bool storage_int_dir_rewind(void* ctx, File* file) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
LFSHandle* handle = storage_get_storage_file_data(file, storage);
|
|
|
|
if(lfs_handle_is_open(handle)) {
|
|
file->internal_error_id = lfs_dir_rewind(lfs, lfs_handle_get_dir(handle));
|
|
} else {
|
|
file->internal_error_id = LFS_ERR_BADF;
|
|
}
|
|
|
|
file->error_id = storage_int_parse_error(file->internal_error_id);
|
|
return (file->error_id == FSE_OK);
|
|
}
|
|
|
|
/******************* Common FS Functions *******************/
|
|
|
|
static FS_Error storage_int_common_stat(void* ctx, const char* path, FileInfo* fileinfo) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
struct lfs_info _fileinfo;
|
|
int result = lfs_stat(lfs, path, &_fileinfo);
|
|
|
|
if(fileinfo != NULL) {
|
|
fileinfo->size = _fileinfo.size;
|
|
fileinfo->flags = 0;
|
|
if(_fileinfo.type & LFS_TYPE_DIR) fileinfo->flags |= FSF_DIRECTORY;
|
|
}
|
|
|
|
return storage_int_parse_error(result);
|
|
}
|
|
|
|
static FS_Error storage_int_common_remove(void* ctx, const char* path) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
int result = lfs_remove(lfs, path);
|
|
return storage_int_parse_error(result);
|
|
}
|
|
|
|
static FS_Error storage_int_common_rename(void* ctx, const char* old_path, const char* new_path) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
int result = lfs_rename(lfs, old_path, new_path);
|
|
return storage_int_parse_error(result);
|
|
}
|
|
|
|
static FS_Error storage_int_common_mkdir(void* ctx, const char* path) {
|
|
StorageData* storage = ctx;
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
int result = lfs_mkdir(lfs, path);
|
|
return storage_int_parse_error(result);
|
|
}
|
|
|
|
static FS_Error storage_int_common_fs_info(
|
|
void* ctx,
|
|
const char* fs_path,
|
|
uint64_t* total_space,
|
|
uint64_t* free_space) {
|
|
StorageData* storage = ctx;
|
|
|
|
lfs_t* lfs = lfs_get_from_storage(storage);
|
|
LFSData* lfs_data = lfs_data_get_from_storage(storage);
|
|
|
|
*total_space = lfs_data->config.block_size * lfs_data->config.block_count;
|
|
|
|
lfs_ssize_t result = lfs_fs_size(lfs);
|
|
if(result >= 0) {
|
|
*free_space = *total_space - (result * lfs_data->config.block_size);
|
|
}
|
|
|
|
return storage_int_parse_error(result);
|
|
}
|
|
|
|
/******************* Init Storage *******************/
|
|
|
|
void storage_int_init(StorageData* storage) {
|
|
FURI_LOG_I(TAG, "Starting");
|
|
LFSData* lfs_data = storage_int_lfs_data_alloc();
|
|
FURI_LOG_I(
|
|
TAG,
|
|
"Config: start %p, read %d, write %d, page size: %d, page count: %d, cycles: %d",
|
|
lfs_data->start_address,
|
|
lfs_data->config.read_size,
|
|
lfs_data->config.prog_size,
|
|
lfs_data->config.block_size,
|
|
lfs_data->config.block_count,
|
|
lfs_data->config.block_cycles);
|
|
|
|
storage_int_lfs_mount(lfs_data, storage);
|
|
|
|
storage->data = lfs_data;
|
|
storage->api.tick = NULL;
|
|
storage->fs_api.file.open = storage_int_file_open;
|
|
storage->fs_api.file.close = storage_int_file_close;
|
|
storage->fs_api.file.read = storage_int_file_read;
|
|
storage->fs_api.file.write = storage_int_file_write;
|
|
storage->fs_api.file.seek = storage_int_file_seek;
|
|
storage->fs_api.file.tell = storage_int_file_tell;
|
|
storage->fs_api.file.truncate = storage_int_file_truncate;
|
|
storage->fs_api.file.size = storage_int_file_size;
|
|
storage->fs_api.file.sync = storage_int_file_sync;
|
|
storage->fs_api.file.eof = storage_int_file_eof;
|
|
|
|
storage->fs_api.dir.open = storage_int_dir_open;
|
|
storage->fs_api.dir.close = storage_int_dir_close;
|
|
storage->fs_api.dir.read = storage_int_dir_read;
|
|
storage->fs_api.dir.rewind = storage_int_dir_rewind;
|
|
|
|
storage->fs_api.common.stat = storage_int_common_stat;
|
|
storage->fs_api.common.mkdir = storage_int_common_mkdir;
|
|
storage->fs_api.common.rename = storage_int_common_rename;
|
|
storage->fs_api.common.remove = storage_int_common_remove;
|
|
storage->fs_api.common.fs_info = storage_int_common_fs_info;
|
|
} |