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fusee: re-design and fix emummc handling

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This commit is contained in:
hexkyz
2020-08-01 17:20:56 +01:00
parent 91bbdf2baf
commit 98ca5e2927
12 changed files with 147 additions and 830 deletions
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218
fusee/fusee-secondary/src/nxfs.c
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@@ -36,7 +36,6 @@ static bool g_emmc_device_initialized = false;
static bool g_fsdev_ready = false;
static bool g_rawdev_ready = false;
static bool g_emudev_ready = false;
static bool g_is_emummc = false;
@@ -356,87 +355,6 @@ static int nxfs_mount_partition_gpt_callback(const efi_entry_t *entry, void *par
return 0;
}
static int nxfs_mount_emu_partition_gpt_callback(const efi_entry_t *entry, void *param, size_t entry_offset, FILE *disk, const char *origin_path, int num_parts, uint64_t part_limit) {
(void)entry_offset;
(void)disk;
device_partition_t *parent = (device_partition_t *)param;
device_partition_t devpart = *parent;
char name_buffer[128];
const uint16_t *utf16name = entry->name;
uint32_t name_len;
int rc;
static const struct {
const char *partition_name;
const char *mount_point;
bool is_fat;
bool is_encrypted;
bool register_immediately;
} known_partitions[] = {
{"PRODINFO", "prodinfo", false, true, false},
{"PRODINFOF", "prodinfof", true, true, false},
{"BCPKG2-1-Normal-Main", "bcpkg21", false, false, true},
{"BCPKG2-2-Normal-Sub", "bcpkg22", false, false, false},
{"BCPKG2-3-SafeMode-Main", "bcpkg23", false, false, false},
{"BCPKG2-4-SafeMode-Sub", "bcpkg24", false, false, false},
{"BCPKG2-5-Repair-Main", "bcpkg25", false, false, false},
{"BCPKG2-6-Repair-Sub", "bcpkg26", false, false, false},
{"SAFE", "safe", true, true, false},
{"SYSTEM", "system", true, true, true},
{"USER", "user", true, true, false},
};
/* Convert the partition name to ASCII, for comparison. */
for (name_len = 0; name_len < sizeof(entry->name) && *utf16name != 0; name_len++) {
name_buffer[name_len] = (char)*utf16name++;
}
name_buffer[name_len] = '\0';
/* Mount the partition, if we know about it. */
for (size_t i = 0; i < sizeof(known_partitions)/sizeof(known_partitions[0]); i++) {
if (strcmp(name_buffer, known_partitions[i].partition_name) == 0) {
devpart.start_sector += entry->first_lba;
devpart.num_sectors = (entry->last_lba + 1) - entry->first_lba;
if (parent->num_sectors < devpart.num_sectors) {
errno = EINVAL;
return -1;
}
if (known_partitions[i].is_encrypted) {
devpart.read_cipher = nxfs_bis_crypto_decrypt;
devpart.write_cipher = nxfs_bis_crypto_encrypt;
devpart.crypto_mode = DevicePartitionCryptoMode_Xts;
}
if (known_partitions[i].is_fat) {
rc = fsdev_mount_device(known_partitions[i].mount_point, &devpart, false);
if (rc == -1) {
return -1;
}
if (known_partitions[i].register_immediately) {
rc = fsdev_register_device(known_partitions[i].mount_point);
if (rc == -1) {
return -1;
}
}
} else {
rc = emudev_mount_device(known_partitions[i].mount_point, &devpart, origin_path, num_parts, part_limit);
if (rc == -1) {
return -1;
}
if (known_partitions[i].register_immediately) {
rc = emudev_register_device(known_partitions[i].mount_point);
if (rc == -1) {
return -1;
}
}
}
}
}
return 0;
}
int nxfs_mount_sd() {
device_partition_t model;
int rc;
@@ -446,6 +364,7 @@ int nxfs_mount_sd() {
model.device_struct = &g_sd_mmcpart;
model.start_sector = 0;
model.num_sectors = 1u << 30; /* arbitrary numbers of sectors. TODO: find the size of the SD in sectors. */
model.is_emulated = false;
/* Mount the SD card device. */
rc = fsdev_mount_device("sdmc", &model, true);
@@ -479,6 +398,7 @@ int nxfs_mount_emmc() {
model.device_struct = &g_emmc_boot0_mmcpart;
model.start_sector = 0;
model.num_sectors = 0x184000 / model.sector_size;
model.is_emulated = false;
/* Mount boot0 device. */
rc = rawdev_mount_device("boot0", &model, true);
@@ -499,6 +419,7 @@ int nxfs_mount_emmc() {
model.device_struct = &g_emmc_boot1_mmcpart;
model.start_sector = 0;
model.num_sectors = 0x80000 / model.sector_size;
model.is_emulated = false;
/* Mount boot1 device. */
rc = rawdev_mount_device("boot1", &model, false);
@@ -514,6 +435,7 @@ int nxfs_mount_emmc() {
model.device_struct = &g_emmc_user_mmcpart;
model.start_sector = 0;
model.num_sectors = (256ull << 30) / model.sector_size;
model.is_emulated = false;
/* Mount raw NAND device. */
rc = rawdev_mount_device("rawnand", &model, false);
@@ -558,10 +480,11 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
model = g_emummc_devpart_template;
model.start_sector = emummc_start_sector + (0x400000 * 0 / model.sector_size);
model.num_sectors = 0x400000 / model.sector_size;
model.is_emulated = true;
model.emu_use_file = false;
/* Mount emulated boot0 device. */
rc = emudev_mount_device("boot0", &model, NULL, 0, 0);
rc = rawdev_mount_device("boot0", &model, true);
/* Failed to mount boot0 device. */
if (rc == -1) {
@@ -569,7 +492,7 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
}
/* Register emulated boot0 device. */
rc = emudev_register_device("boot0");
rc = rawdev_register_device("boot0");
/* Failed to register boot0 device. */
if (rc == -1) {
@@ -580,10 +503,11 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
model = g_emummc_devpart_template;
model.start_sector = emummc_start_sector + (0x400000 * 1 / model.sector_size);
model.num_sectors = 0x400000 / model.sector_size;
model.is_emulated = true;
model.emu_use_file = false;
/* Mount emulated boot1 device. */
rc = emudev_mount_device("boot1", &model, NULL, 0, 0);
rc = rawdev_mount_device("boot1", &model, false);
/* Failed to mount boot1. */
if (rc == -1) {
@@ -596,10 +520,11 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
model = g_emummc_devpart_template;
model.start_sector = emummc_start_sector + (0x400000 * 2 / model.sector_size);
model.num_sectors = (256ull << 30) / model.sector_size;
model.is_emulated = true;
model.emu_use_file = false;
/* Mount emulated raw NAND device. */
rc = emudev_mount_device("rawnand", &model, NULL, 0, 0);
rc = rawdev_mount_device("rawnand", &model, false);
/* Failed to mount raw NAND. */
if (rc == -1) {
@@ -607,7 +532,7 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
}
/* Register emulated raw NAND device. */
rc = emudev_register_device("rawnand");
rc = rawdev_register_device("rawnand");
/* Failed to register raw NAND device. */
if (rc == -1) {
@@ -623,14 +548,14 @@ int nxfs_mount_emummc_partition(uint64_t emummc_start_sector) {
}
/* Iterate the GPT and mount each emulated raw NAND partition. */
rc = gpt_iterate_through_emu_entries(rawnand, model.sector_size, nxfs_mount_emu_partition_gpt_callback, &model, NULL, 0, 0);
rc = gpt_iterate_through_entries(rawnand, model.sector_size, nxfs_mount_partition_gpt_callback, &model);
/* Close emulated raw NAND device. */
fclose(rawnand);
/* All emulated devices are ready. */
if (rc == 0) {
g_emudev_ready = true;
g_rawdev_ready = true;
g_is_emummc = true;
}
@@ -641,10 +566,9 @@ int nxfs_mount_emummc_file(const char *emummc_path, int num_parts, uint64_t part
device_partition_t model;
int rc;
FILE *rawnand;
bool is_exfat;
char emummc_boot0_path[0x300 + 1] = {0};
char emummc_boot1_path[0x300 + 1] = {0};
/* Check if the SD card is EXFAT formatted. */
rc = fsdev_is_exfat("sdmc");
@@ -652,29 +576,20 @@ int nxfs_mount_emummc_file(const char *emummc_path, int num_parts, uint64_t part
if (rc == -1) {
return -1;
}
/* Set EXFAT status. */
is_exfat = (rc == 1);
/* Reject single part in FAT32. */
/* NOTE: This check has no effect in the current design. */
if (!is_exfat && (num_parts < 1)) {
return -2;
}
/* We want a folder with the archive bit set. */
rc = fsdev_get_attr(emummc_path);
/* Failed to get file DOS attributes. */
if (rc == -1) {
return -3;
return -2;
}
/* Our path is not a directory. */
if (!(rc & AM_DIR)) {
return -4;
return -3;
}
/* Check if the archive bit is not set. */
if (!(rc & AM_ARC)) {
/* Try to set the archive bit. */
@@ -682,102 +597,117 @@ int nxfs_mount_emummc_file(const char *emummc_path, int num_parts, uint64_t part
/* Failed to set file DOS attributes. */
if (rc == -1) {
return -5;
return -4;
}
}
/* Prepare boot0 file path. */
snprintf(emummc_boot0_path, sizeof(emummc_boot0_path) - 1, "%s/%s", emummc_path, "boot0");
/* Setup an emulation template for boot0. */
model = g_emummc_devpart_template;
model.start_sector = 0;
model.num_sectors = 0x400000 / model.sector_size;
model.is_emulated = true;
model.emu_use_file = true;
/* Prepare boot0 file path. */
snprintf(emummc_boot0_path, sizeof(emummc_boot0_path) - 1, "%s/%s", emummc_path, "boot0");
model.emu_num_parts = 0;
model.emu_part_limit = 0;
strcpy(model.emu_root_path, emummc_path);
strcpy(model.emu_file_path, emummc_boot0_path);
/* Mount emulated boot0 device. */
rc = emudev_mount_device("boot0", &model, emummc_boot0_path, 0, 0);
rc = rawdev_mount_device("boot0", &model, true);
/* Failed to mount boot0 device. */
if (rc == -1) {
return -6;
return -5;
}
/* Register emulated boot0 device. */
rc = emudev_register_device("boot0");
rc = rawdev_register_device("boot0");
/* Failed to register boot0 device. */
if (rc == -1) {
return -7;
return -6;
}
/* Prepare boot1 file path. */
snprintf(emummc_boot1_path, sizeof(emummc_boot1_path) - 1, "%s/%s", emummc_path, "boot1");
/* Setup an emulation template for boot1. */
model = g_emummc_devpart_template;
model.start_sector = 0;
model.num_sectors = 0x400000 / model.sector_size;
model.is_emulated = true;
model.emu_use_file = true;
/* Prepare boot1 file path. */
snprintf(emummc_boot1_path, sizeof(emummc_boot1_path) - 1, "%s/%s", emummc_path, "boot1");
model.emu_num_parts = 0;
model.emu_part_limit = 0;
strcpy(model.emu_root_path, emummc_path);
strcpy(model.emu_file_path, emummc_boot1_path);
/* Mount emulated boot1 device. */
rc = emudev_mount_device("boot1", &model, emummc_boot1_path, 0, 0);
rc = rawdev_mount_device("boot1", &model, false);
/* Failed to mount boot1. */
if (rc == -1) {
return -8;
return -7;
}
/* Register emulated boot1 device. */
rc = emudev_register_device("boot1");
rc = rawdev_register_device("boot1");
/* Failed to register boot1 device. */
if (rc == -1) {
return -9;
return -8;
}
/* Setup a template for raw NAND. */
model = g_emummc_devpart_template;
model.start_sector = 0;
model.num_sectors = (256ull << 30) / model.sector_size;
model.is_emulated = true;
model.emu_use_file = true;
model.emu_num_parts = num_parts;
model.emu_part_limit = part_limit;
strcpy(model.emu_root_path, emummc_path);
strcpy(model.emu_file_path, emummc_path);
/* Mount emulated raw NAND device from single or multiple parts. */
rc = emudev_mount_device("rawnand", &model, emummc_path, num_parts, part_limit);
rc = rawdev_mount_device("rawnand", &model, false);
/* Failed to mount raw NAND. */
if (rc == -1) {
return -10;
return -9;
}
/* Register emulated raw NAND device. */
rc = emudev_register_device("rawnand");
rc = rawdev_register_device("rawnand");
/* Failed to register raw NAND device. */
if (rc == -1) {
return -11;
return -10;
}
/* Open emulated raw NAND device. */
rawnand = fopen("rawnand:/", "rb");
/* Failed to open emulated raw NAND device. */
if (rawnand == NULL) {
return -12;
return -11;
}
/* Iterate the GPT and mount each emulated raw NAND partition. */
rc = gpt_iterate_through_emu_entries(rawnand, model.sector_size, nxfs_mount_emu_partition_gpt_callback, &model, emummc_path, num_parts, part_limit);
rc = gpt_iterate_through_entries(rawnand, model.sector_size, nxfs_mount_partition_gpt_callback, &model);
/* Close emulated raw NAND device. */
fclose(rawnand);
/* All emulated devices are ready. */
if (rc == 0) {
g_emudev_ready = true;
g_rawdev_ready = true;
g_is_emummc = true;
}
return rc;
}
@@ -805,18 +735,6 @@ int nxfs_unmount_emmc() {
return rc;
}
int nxfs_unmount_emummc() {
int rc = 0;
/* Unmount all emulated devices. */
if (g_emudev_ready) {
rc = emudev_unmount_all();
g_emudev_ready = false;
}
return rc;
}
int nxfs_init() {
int rc;
@@ -832,5 +750,5 @@ int nxfs_init() {
}
int nxfs_end() {
return ((nxfs_unmount_sd() || nxfs_unmount_emmc() || nxfs_unmount_emummc()) ? -1 : 0);
return ((nxfs_unmount_sd() || nxfs_unmount_emmc()) ? -1 : 0);
}