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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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164
fusee/fusee-secondary/src/device_partition.c
View file

@ -18,67 +18,9 @@
#include <string.h>
#include "device_partition.h"
int device_partition_read_data(device_partition_t *devpart, void *dst, uint64_t sector, uint64_t num_sectors)
{
int rc;
if (!devpart->initialized) {
rc = devpart->initializer(devpart);
if (rc != 0) {
return rc;
}
}
if ((devpart->read_cipher != NULL) && (devpart->crypto_mode != DevicePartitionCryptoMode_None)) {
for (uint64_t i = 0; i < num_sectors; i += devpart->crypto_work_buffer_num_sectors) {
uint64_t n = (i + devpart->crypto_work_buffer_num_sectors > num_sectors) ? (num_sectors - i) : devpart->crypto_work_buffer_num_sectors;
rc = devpart->reader(devpart, devpart->crypto_work_buffer, sector + i, n);
if (rc != 0) {
return rc;
}
rc = devpart->read_cipher(devpart, sector + i, n);
if (rc != 0) {
return rc;
}
memcpy(dst + (size_t)(devpart->sector_size * i), devpart->crypto_work_buffer, (size_t)(devpart->sector_size * n));
}
return 0;
} else {
return devpart->reader(devpart, dst, sector, num_sectors);
}
}
int device_partition_write_data(device_partition_t *devpart, const void *src, uint64_t sector, uint64_t num_sectors)
{
int rc;
if (!devpart->initialized) {
rc = devpart->initializer(devpart);
if (rc != 0) {
return rc;
}
}
if ((devpart->write_cipher != NULL) && (devpart->crypto_mode != DevicePartitionCryptoMode_None)) {
for (uint64_t i = 0; i < num_sectors; i += devpart->crypto_work_buffer_num_sectors) {
uint64_t n = (i + devpart->crypto_work_buffer_num_sectors > num_sectors) ? (num_sectors - i) : devpart->crypto_work_buffer_num_sectors;
memcpy(devpart->crypto_work_buffer, src + (size_t)(devpart->sector_size * i), (size_t)(devpart->sector_size * n));
rc = devpart->write_cipher(devpart, sector + i, n);
if (rc != 0) {
return rc;
}
rc = devpart->writer(devpart, devpart->crypto_work_buffer, sector + i, n);
if (rc != 0) {
return rc;
}
}
return 0;
} else {
return devpart->writer(devpart, src, sector, num_sectors);
}
}
int emu_device_partition_read_data(device_partition_t *devpart, void *dst, uint64_t sector, uint64_t num_sectors, const char *origin_path, int num_parts, uint64_t part_limit)
{
int device_partition_read_data(device_partition_t *devpart, void *dst, uint64_t sector, uint64_t num_sectors) {
int rc = 0;
uint64_t target_sector = sector;
char target_path[0x300 + 1] = {0};
/* Perform initialization steps, if necessary. */
if (!devpart->initialized) {
@ -88,33 +30,37 @@ int emu_device_partition_read_data(device_partition_t *devpart, void *dst, uint6
}
}
/* Prepare the right file path if using file mode. */
if (devpart->emu_use_file && (origin_path != NULL)) {
/* Handle data in multiple parts, if necessary. */
if (num_parts > 0) {
int target_part = 0;
uint64_t data_offset = sector * devpart->sector_size;
/* Handle emulation. */
if (devpart->is_emulated) {
/* Prepare the right file path if using file mode. */
if (devpart->emu_use_file) {
int num_parts = devpart->emu_num_parts;
uint64_t part_limit = devpart->emu_part_limit;
if (data_offset >= part_limit) {
uint64_t data_offset_aligned = (data_offset + (part_limit - 1)) & ~(part_limit - 1);
target_part = (data_offset_aligned == data_offset) ? (data_offset / part_limit) : (data_offset_aligned / part_limit) - 1;
target_sector = (data_offset - (target_part * part_limit)) / devpart->sector_size;
/* Target part is invalid. */
if (target_part > num_parts) {
return -1;
/* Handle data in multiple parts, if necessary. */
if (num_parts > 0) {
int target_part = 0;
char target_path[0x300 + 1] = {0};
uint64_t data_offset = sector * devpart->sector_size;
if (data_offset >= part_limit) {
uint64_t data_offset_aligned = (data_offset + (part_limit - 1)) & ~(part_limit - 1);
target_part = (data_offset_aligned == data_offset) ? (data_offset / part_limit) : (data_offset_aligned / part_limit) - 1;
target_sector = (data_offset - (target_part * part_limit)) / devpart->sector_size;
/* Target part is invalid. */
if (target_part > num_parts) {
return -1;
}
}
/* Treat the path as a folder with each part inside. */
snprintf(target_path, sizeof(target_path) - 1, "%s/%02d", devpart->emu_root_path, target_part);
/* Update the target file path. */
strcpy(devpart->emu_file_path, target_path);
}
/* Treat the path as a folder with each part inside. */
snprintf(target_path, sizeof(target_path) - 1, "%s/%02d", origin_path, target_part);
} else {
/* If there are no parts, copy the origin path directly. */
strcpy(target_path, origin_path);
}
/* Update the target file path. */
devpart->emu_file_path = target_path;
}
/* Read the partition data. */
@ -147,11 +93,9 @@ int emu_device_partition_read_data(device_partition_t *devpart, void *dst, uint6
return rc;
}
int emu_device_partition_write_data(device_partition_t *devpart, const void *src, uint64_t sector, uint64_t num_sectors, const char *origin_path, int num_parts, uint64_t part_limit)
{
int device_partition_write_data(device_partition_t *devpart, const void *src, uint64_t sector, uint64_t num_sectors) {
int rc = 0;
uint64_t target_sector = sector;
char target_path[0x300 + 1] = {0};
/* Perform initialization steps, if necessary. */
if (!devpart->initialized) {
@ -161,33 +105,37 @@ int emu_device_partition_write_data(device_partition_t *devpart, const void *src
}
}
/* Prepare the right file path if using file mode. */
if (devpart->emu_use_file && (origin_path != NULL)) {
/* Handle data in multiple parts, if necessary. */
if (num_parts > 0) {
int target_part = 0;
uint64_t data_offset = sector * devpart->sector_size;
/* Handle emulation. */
if (devpart->is_emulated) {
/* Prepare the right file path if using file mode. */
if (devpart->emu_use_file) {
int num_parts = devpart->emu_num_parts;
uint64_t part_limit = devpart->emu_part_limit;
if (data_offset >= part_limit) {
uint64_t data_offset_aligned = (data_offset + (part_limit - 1)) & ~(part_limit - 1);
target_part = (data_offset_aligned == data_offset) ? (data_offset / part_limit) : (data_offset_aligned / part_limit) - 1;
target_sector = (data_offset - (target_part * part_limit)) / devpart->sector_size;
/* Target part is invalid. */
if (target_part > num_parts) {
return -1;
/* Handle data in multiple parts, if necessary. */
if (num_parts > 0) {
int target_part = 0;
char target_path[0x300 + 1] = {0};
uint64_t data_offset = sector * devpart->sector_size;
if (data_offset >= part_limit) {
uint64_t data_offset_aligned = (data_offset + (part_limit - 1)) & ~(part_limit - 1);
target_part = (data_offset_aligned == data_offset) ? (data_offset / part_limit) : (data_offset_aligned / part_limit) - 1;
target_sector = (data_offset - (target_part * part_limit)) / devpart->sector_size;
/* Target part is invalid. */
if (target_part > num_parts) {
return -1;
}
}
/* Treat the path as a folder with each part inside. */
snprintf(target_path, sizeof(target_path) - 1, "%s/%02d", devpart->emu_root_path, target_part);
/* Update the target file path. */
strcpy(devpart->emu_file_path, target_path);
}
/* Treat the path as a folder with each part inside. */
snprintf(target_path, sizeof(target_path) - 1, "%s/%02d", origin_path, target_part);
} else {
/* If there are no parts, copy the origin path directly. */
strcpy(target_path, origin_path);
}
/* Update the target file path. */
devpart->emu_file_path = target_path;
}
/* Write the partition data. */

9
fusee/fusee-secondary/src/device_partition.h
View file

@ -67,13 +67,16 @@ typedef struct device_partition_t {
uint8_t __attribute__((aligned(16))) iv[DEVPART_IV_MAX_SIZE]; /* IV. */
bool initialized;
char *emu_file_path; /* Emulated device file path. */
/* Emulation only. */
bool is_emulated;
bool emu_use_file;
char emu_root_path[0x100 + 1];
char emu_file_path[0x300 + 1];
int emu_num_parts;
uint64_t emu_part_limit;
} device_partition_t;
int device_partition_read_data(device_partition_t *devpart, void *dst, uint64_t sector, uint64_t num_sectors);
int device_partition_write_data(device_partition_t *devpart, const void *src, uint64_t sector, uint64_t num_sectors);
int emu_device_partition_read_data(device_partition_t *devpart, void *dst, uint64_t sector, uint64_t num_sectors, const char *origin_path, int num_parts, uint64_t part_limit);
int emu_device_partition_write_data(device_partition_t *devpart, const void *src, uint64_t sector, uint64_t num_sectors, const char *origin_path, int num_parts, uint64_t part_limit);
#endif

489
fusee/fusee-secondary/src/emu_dev.c
View file

@ -1,489 +0,0 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/iosupport.h>
#include <sys/param.h>
#include <unistd.h>
#include "emu_dev.h"
#include "utils.h"
static int emudev_open(struct _reent *r, void *fileStruct, const char *path, int flags, int mode);
static int emudev_close(struct _reent *r, void *fd);
static ssize_t emudev_write(struct _reent *r, void *fd, const char *ptr, size_t len);
static ssize_t emudev_read(struct _reent *r, void *fd, char *ptr, size_t len);
static off_t emudev_seek(struct _reent *r, void *fd, off_t pos, int whence);
static int emudev_fstat(struct _reent *r, void *fd, struct stat *st);
static int emudev_stat(struct _reent *r, const char *file, struct stat *st);
static int emudev_fsync(struct _reent *r, void *fd);
typedef struct emudev_device_t {
devoptab_t devoptab;
char origin_path[0x300+1];
int num_parts;
uint64_t part_limit;
uint8_t *tmp_sector;
device_partition_t devpart;
char name[32+1];
char root_path[34+1];
bool setup, registered;
} emudev_device_t;
typedef struct emudev_file_t {
emudev_device_t *device;
int open_flags;
uint64_t offset;
} emudev_file_t;
static emudev_device_t g_emudev_devices[EMUDEV_MAX_DEVICES] = {0};
static devoptab_t g_emudev_devoptab = {
.structSize = sizeof(emudev_file_t),
.open_r = emudev_open,
.close_r = emudev_close,
.write_r = emudev_write,
.read_r = emudev_read,
.seek_r = emudev_seek,
.fstat_r = emudev_fstat,
.stat_r = emudev_stat,
.fsync_r = emudev_fsync,
.deviceData = NULL,
};
static emudev_device_t *emudev_find_device(const char *name) {
for (size_t i = 0; i < EMUDEV_MAX_DEVICES; i++) {
if (g_emudev_devices[i].setup && strcmp(g_emudev_devices[i].name, name) == 0) {
return &g_emudev_devices[i];
}
}
return NULL;
}
int emudev_mount_device(const char *name, const device_partition_t *devpart, const char *origin_path, int num_parts, uint64_t part_limit) {
emudev_device_t *device = NULL;
if (name[0] == '\0' || devpart == NULL) {
errno = EINVAL;
return -1;
}
if (strlen(name) > 32) {
errno = ENAMETOOLONG;
return -1;
}
if (emudev_find_device(name) != NULL) {
errno = EEXIST; /* Device already exists */
return -1;
}
/* Find an unused slot. */
for (size_t i = 0; i < EMUDEV_MAX_DEVICES; i++) {
if (!g_emudev_devices[i].setup) {
device = &g_emudev_devices[i];
break;
}
}
if (device == NULL) {
errno = ENOMEM;
return -1;
}
memset(device, 0, sizeof(emudev_device_t));
device->devoptab = g_emudev_devoptab;
device->devpart = *devpart;
strcpy(device->name, name);
strcpy(device->root_path, name);
strcat(device->root_path, ":/");
/* Copy the file path for file mode. */
if (devpart->emu_use_file)
strcpy(device->origin_path, origin_path);
device->num_parts = num_parts;
device->part_limit = part_limit;
device->devoptab.name = device->name;
device->devoptab.deviceData = device;
/* Initialize immediately. */
int rc = device->devpart.initializer(&device->devpart);
if (rc != 0) {
errno = rc;
return -1;
}
/* Allocate memory for our intermediate sector. */
device->tmp_sector = (uint8_t *)malloc(devpart->sector_size);
if (device->tmp_sector == NULL) {
errno = ENOMEM;
return -1;
}
device->setup = true;
device->registered = false;
return 0;
}
int emudev_register_device(const char *name) {
emudev_device_t *device = emudev_find_device(name);
if (device == NULL) {
errno = ENOENT;
return -1;
}
if (device->registered) {
/* Do nothing if the device is already registered. */
return 0;
}
if (AddDevice(&device->devoptab) == -1) {
errno = ENOMEM;
return -1;
} else {
device->registered = true;
return 0;
}
}
int emudev_unregister_device(const char *name) {
emudev_device_t *device = emudev_find_device(name);
char drname[40];
if (device == NULL) {
errno = ENOENT;
return -1;
}
if (!device->registered) {
/* Do nothing if the device is not registered. */
return 0;
}
strcpy(drname, name);
strcat(drname, ":");
if (RemoveDevice(drname) == -1) {
errno = ENOENT;
return -1;
} else {
device->registered = false;
return 0;
}
}
int emudev_unmount_device(const char *name) {
int rc;
emudev_device_t *device = emudev_find_device(name);
if (device == NULL) {
errno = ENOENT;
return -1;
}
rc = emudev_unregister_device(name);
if (rc == -1) {
return -1;
}
free(device->tmp_sector);
device->devpart.finalizer(&device->devpart);
memset(device, 0, sizeof(emudev_device_t));
return 0;
}
int emudev_unmount_all(void) {
for (size_t i = 0; i < EMUDEV_MAX_DEVICES; i++) {
int rc = emudev_unmount_device(g_emudev_devices[i].name);
if (rc != 0) {
return rc;
}
}
return 0;
}
static int emudev_open(struct _reent *r, void *fileStruct, const char *path, int flags, int mode) {
(void)mode;
emudev_file_t *f = (emudev_file_t *)fileStruct;
emudev_device_t *device = (emudev_device_t *)(r->deviceData);
/* Only allow "device:/". */
if (strcmp(path, device->root_path) != 0) {
r->_errno = ENOENT;
return -1;
}
/* Forbid some flags that we explicitly don't support.*/
if (flags & (O_APPEND | O_TRUNC | O_EXCL)) {
r->_errno = EINVAL;
return -1;
}
memset(f, 0, sizeof(emudev_file_t));
f->device = device;
f->open_flags = flags;
return 0;
}
static int emudev_close(struct _reent *r, void *fd) {
(void)r;
emudev_file_t *f = (emudev_file_t *)fd;
memset(f, 0, sizeof(emudev_file_t));
return 0;
}
static ssize_t emudev_write(struct _reent *r, void *fd, const char *ptr, size_t len) {
emudev_file_t *f = (emudev_file_t *)fd;
emudev_device_t *device = f->device;
size_t sector_size = device->devpart.sector_size;
uint64_t sector_begin = f->offset / sector_size;
uint64_t sector_end = (f->offset + len + sector_size - 1) / sector_size;
uint64_t sector_end_aligned;
uint64_t current_sector = sector_begin;
const uint8_t *data = (const uint8_t *)ptr;
int no = 0;
if (sector_end >= device->devpart.num_sectors) {
len = (size_t)(sector_size * device->devpart.num_sectors - f->offset);
sector_end = device->devpart.num_sectors;
}
sector_end_aligned = sector_end - ((f->offset + len) % sector_size != 0 ? 1 : 0);
if (len == 0) {
return 0;
}
/* Unaligned at the start, we need to read the sector and incorporate the data. */
if (f->offset % sector_size != 0) {
size_t nb = (size_t)(len <= (sector_size - (f->offset % sector_size)) ? len : sector_size - (f->offset % sector_size));
no = emu_device_partition_read_data(&device->devpart, device->tmp_sector, sector_begin, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
memcpy(device->tmp_sector + (f->offset % sector_size), data, nb);
no = emu_device_partition_write_data(&device->devpart, device->tmp_sector, sector_begin, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
/* Advance */
data += sector_size - (f->offset % sector_size);
current_sector++;
}
/* Check if we're already done (otherwise this causes a bug in handling the last sector of the range). */
if (current_sector == sector_end) {
f->offset += len;
return len;
}
/* Write all of the sector-aligned data. */
if (current_sector != sector_end_aligned) {
no = emu_device_partition_write_data(&device->devpart, data, current_sector, sector_end_aligned - current_sector, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
}
data += sector_size * (sector_end_aligned - current_sector);
current_sector = sector_end_aligned;
/* Unaligned at the end, we need to read the sector and incorporate the data. */
if (sector_end != sector_end_aligned) {
no = emu_device_partition_read_data(&device->devpart, device->tmp_sector, sector_end_aligned, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
memcpy(device->tmp_sector, data, (size_t)((f->offset + len) % sector_size));
no = emu_device_partition_write_data(&device->devpart, device->tmp_sector, sector_end_aligned, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
/* Advance */
data += sector_size - ((f->offset + len) % sector_size);
current_sector++;
}
f->offset += len;
return len;
}
static ssize_t emudev_read(struct _reent *r, void *fd, char *ptr, size_t len) {
emudev_file_t *f = (emudev_file_t *)fd;
emudev_device_t *device = f->device;
size_t sector_size = device->devpart.sector_size;
uint64_t sector_begin = f->offset / sector_size;
uint64_t sector_end = (f->offset + len + sector_size - 1) / sector_size;
uint64_t sector_end_aligned;
uint64_t current_sector = sector_begin;
uint8_t *data = (uint8_t *)ptr;
int no = 0;
if (sector_end >= device->devpart.num_sectors) {
len = (size_t)(sector_size * device->devpart.num_sectors - f->offset);
sector_end = device->devpart.num_sectors;
}
sector_end_aligned = sector_end - ((f->offset + len) % sector_size != 0 ? 1 : 0);
if (len == 0) {
return 0;
}
/* Unaligned at the start, we need to read the sector and incorporate the data. */
if (f->offset % sector_size != 0) {
size_t nb = (size_t)(len <= (sector_size - (f->offset % sector_size)) ? len : sector_size - (f->offset % sector_size));
no = emu_device_partition_read_data(&device->devpart, device->tmp_sector, sector_begin, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
memcpy(data, device->tmp_sector + (f->offset % sector_size), nb);
/* Advance */
data += sector_size - (f->offset % sector_size);
current_sector++;
}
/* Check if we're already done (otherwise this causes a bug in handling the last sector of the range). */
if (current_sector == sector_end) {
f->offset += len;
return len;
}
/* Read all of the sector-aligned data. */
if (current_sector != sector_end_aligned) {
no = emu_device_partition_read_data(&device->devpart, data, current_sector, sector_end_aligned - current_sector, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
}
data += sector_size * (sector_end_aligned - current_sector);
current_sector = sector_end_aligned;
/* Unaligned at the end, we need to read the sector and incorporate the data. */
if (sector_end != sector_end_aligned) {
no = emu_device_partition_read_data(&device->devpart, device->tmp_sector, sector_end_aligned, 1, device->origin_path, device->num_parts, device->part_limit);
if (no != 0) {
r->_errno = no;
return -1;
}
memcpy(data, device->tmp_sector, (size_t)((f->offset + len) % sector_size));
/* Advance */
data += sector_size - ((f->offset + len) % sector_size);
current_sector++;
}
f->offset += len;
return len;
}
static off_t emudev_seek(struct _reent *r, void *fd, off_t pos, int whence) {
emudev_file_t *f = (emudev_file_t *)fd;
emudev_device_t *device = f->device;
uint64_t off;
switch (whence) {
case SEEK_SET:
off = 0;
break;
case SEEK_CUR:
off = f->offset;
break;
case SEEK_END:
off = device->devpart.num_sectors * device->devpart.sector_size;
break;
default:
r->_errno = EINVAL;
return -1;
}
if (pos < 0 && pos + off < 0) {
/* don't allow seek to before the beginning of the file */
r->_errno = EINVAL;
return -1;
}
f->offset = (uint64_t)(pos + off);
return (off_t)(pos + off);
}
static void emudev_stat_impl(emudev_device_t *device, struct stat *st) {
memset(st, 0, sizeof(struct stat));
st->st_size = (off_t)(device->devpart.num_sectors * device->devpart.sector_size);
st->st_nlink = 1;
st->st_blksize = device->devpart.sector_size;
st->st_blocks = st->st_size / st->st_blksize;
st->st_mode = S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
}
static int emudev_fstat(struct _reent *r, void *fd, struct stat *st) {
(void)r;
emudev_file_t *f = (emudev_file_t *)fd;
emudev_device_t *device = f->device;
emudev_stat_impl(device, st);
return 0;
}
static int emudev_stat(struct _reent *r, const char *file, struct stat *st) {
emudev_device_t *device = (emudev_device_t *)(r->deviceData);
if (strcmp(file, device->root_path) != 0) {
r->_errno = ENOENT;
return -1;
}
emudev_stat_impl(device, st);
return 0;
}
static int emudev_fsync(struct _reent *r, void *fd) {
/* Nothing to do. */
(void)r;
(void)fd;
return 0;
}

34
fusee/fusee-secondary/src/emu_dev.h
View file

@ -1,34 +0,0 @@
/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
*/
#ifndef FUSEE_EMU_DEV_H
#define FUSEE_EMU_DEV_H
#include <stddef.h>
#include <stdint.h>
#include <stdbool.h>
#include "device_partition.h"
#define EMUDEV_MAX_DEVICES 16
int emudev_mount_device(const char *name, const device_partition_t *devpart, const char *origin_path, int num_parts, uint64_t part_limit);
int emudev_register_device(const char *name);
int emudev_unregister_device(const char *name);
int emudev_unmount_device(const char *name); /* also unregisters. */
int emudev_unmount_all(void);
#endif

1
fusee/fusee-secondary/src/fs_dev.c
View file

@ -302,7 +302,6 @@ int fsdev_register_keys(const char *name, unsigned int target_firmware, BisParti
return 0;
}
int fsdev_unmount_all(void) {
for (size_t i = 0; i < FF_VOLUMES; i++) {
int ret = fsdev_unmount_device(g_fsdev_devices[i].name);

39
fusee/fusee-secondary/src/gpt.c
View file

@ -112,42 +112,3 @@ int gpt_iterate_through_entries(FILE *disk, size_t sector_size, gpt_entry_iterat
return 0;
}
int gpt_iterate_through_emu_entries(FILE *disk, size_t sector_size, gpt_emu_entry_iterator_t callback, void *param, const char *origin_path, int num_parts, uint64_t part_limit) {
efi_header_t hdr;
efi_entry_t entry;
size_t offset = 2 * 512; /* Sector #2. */
size_t delta;
/* Get the header. */
if (gpt_get_header(&hdr, disk, sector_size) == -1) {
return -1;
}
/* Seek to the entry table. */
if (fseek(disk, sector_size * hdr.entries_first_lba - offset, SEEK_CUR) != 0) {
return -1;
}
offset = sector_size * hdr.entries_first_lba;
delta = hdr.entry_size - sizeof(efi_entry_t);
/* Iterate through the entries. */
for (uint32_t i = 0; i < hdr.entry_count; i++) {
if (!fread(&entry, sizeof(efi_entry_t), 1, disk)) {
return -1;
}
if (callback(&entry, param, offset, disk, origin_path, num_parts, part_limit) != 0) {
return -1;
}
if (delta != 0 && fseek(disk, delta, SEEK_CUR) != 0) {
return -1;
}
offset += hdr.entry_size;
}
return 0;
}

1
fusee/fusee-secondary/src/gpt.h
View file

@ -56,6 +56,5 @@ typedef int (*gpt_emu_entry_iterator_t)(const efi_entry_t *entry, void *param, s
int gpt_get_header(efi_header_t *out, FILE *disk, size_t sector_size);
int gpt_iterate_through_entries(FILE *disk, size_t sector_size, gpt_entry_iterator_t callback, void *param);
int gpt_iterate_through_emu_entries(FILE *disk, size_t sector_size, gpt_emu_entry_iterator_t callback, void *param, const char *origin_path, int num_parts, uint64_t part_limit);
#endif

2
fusee/fusee-secondary/src/nxboot.c
View file

@ -649,7 +649,7 @@ uint32_t nxboot_main(void) {
} else {
emummc_size = get_file_size("atmosphere/emummc.kip");
if (emummc_size != 0) {
/* Allocate memory for the TSEC firmware. */
/* Allocate memory for the emummc KIP. */
emummc = memalign(0x100, emummc_size);
if (emummc == NULL) {

218
fusee/fusee-secondary/src/nxfs.c
View file

@ -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);
}

1
fusee/fusee-secondary/src/nxfs.h
View file

@ -19,7 +19,6 @@
#include "fs_dev.h"
#include "raw_dev.h"
#include "emu_dev.h"
int nxfs_init();
int nxfs_end();

16
fusee/fusee-secondary/src/raw_dev.c
View file

@ -77,9 +77,6 @@ static rawdev_device_t *rawdev_find_device(const char *name) {
int rawdev_mount_device(const char *name, const device_partition_t *devpart, bool initialize_immediately) {
rawdev_device_t *device = NULL;
char drname[40];
strcpy(drname, name);
strcat(drname, ":");
if (name[0] == '\0' || devpart == NULL) {
errno = EINVAL;
@ -205,6 +202,19 @@ int rawdev_unmount_device(const char *name) {
return 0;
}
int rawdev_register_keys(const char *name, unsigned int target_firmware, BisPartition part) {
rawdev_device_t *device = rawdev_find_device(name);
if (device == NULL) {
errno = ENOENT;
return -1;
}
derive_bis_key(device->devpart.keys, part, target_firmware);
return 0;
}
int rawdev_unmount_all(void) {
for (size_t i = 0; i < RAWDEV_MAX_DEVICES; i++) {
int rc = rawdev_unmount_device(g_rawdev_devices[i].name);

3
fusee/fusee-secondary/src/raw_dev.h
View file

@ -21,6 +21,7 @@
#include <stdint.h>
#include <stdbool.h>
#include "device_partition.h"
#include "key_derivation.h"
#define RAWDEV_MAX_DEVICES 16
@ -29,6 +30,8 @@ int rawdev_register_device(const char *name);
int rawdev_unregister_device(const char *name);
int rawdev_unmount_device(const char *name); /* also unregisters. */
int rawdev_register_keys(const char *name, unsigned int target_firmware, BisPartition part);
int rawdev_unmount_all(void);
#endif