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/*
* recovery.c
* Functions for handling idevices in recovery mode
*
* Copyright (c) 2010 Joshua Hill. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <libirecovery.h>
#include "tss.h"
#include "img3.h"
#include "recovery.h"
#include "idevicerestore.h"
int recovery_check_mode() {
irecv_client_t recovery = NULL;
irecv_error_t recovery_error = IRECV_E_SUCCESS;
recovery_error = irecv_open(&recovery);
if (recovery_error != IRECV_E_SUCCESS) {
return -1;
}
if(recovery->mode == kDfuMode) {
irecv_close(recovery);
return -1;
}
irecv_close(recovery);
recovery = NULL;
return 0;
}
int recovery_enter_restore(const char* ipsw, plist_t tss) {
// upload data to make device boot restore mode
if (recovery_send_ibec(ipsw, tss) < 0) {
error("ERROR: Unable to send iBEC\n");
return -1;
}
sleep(1);
if (recovery_send_applelogo(ipsw, tss) < 0) {
error("ERROR: Unable to send AppleLogo\n");
return -1;
}
if (recovery_send_devicetree(ipsw, tss) < 0) {
error("ERROR: Unable to send DeviceTree\n");
return -1;
}
if (recovery_send_ramdisk(ipsw, tss) < 0) {
error("ERROR: Unable to send Ramdisk\n");
return -1;
}
// for some reason iboot requires a hard reset after ramdisk
// or things start getting wacky
printf("Please unplug your device, then plug it back in\n");
printf("Hit any key to continue...");
getchar();
if (recovery_send_kernelcache(ipsw, tss) < 0) {
error("ERROR: Unable to send KernelCache\n");
return -1;
}
return 0;
}
int recovery_send_signed_component(irecv_client_t client, const char* ipsw, plist_t tss, char* component) {
int size = 0;
char* data = NULL;
char* path = NULL;
char* blob = NULL;
img3_file* img3 = NULL;
irecv_error_t error = 0;
if (get_signed_component_by_name(ipsw, tss, component, &data, &size) < 0) {
error("ERROR: Unable to get signed component: %s\n", component);
return -1;
}
info("Sending %s...\n", component);
error = irecv_send_buffer(client, data, size);
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to send IMG3: %s\n", path);
img3_free(img3);
free(data);
free(path);
return -1;
}
if (data) {
free(data);
data = NULL;
}
return 0;
}
irecv_error_t recovery_open_with_timeout(irecv_client_t* client) {
int i = 0;
irecv_error_t error = 0;
for (i = 10; i > 0; i--) {
error = irecv_open(client);
if (error == IRECV_E_SUCCESS) {
return error;
}
sleep(2);
info("Retrying connection...\n");
}
error("ERROR: Unable to connect to recovery device.\n");
return error;
}
int recovery_send_ibec(const char* ipsw, plist_t tss) {
irecv_error_t error = 0;
irecv_client_t client = NULL;
char* component = "iBEC";
error = recovery_open_with_timeout(&client);
if (error != IRECV_E_SUCCESS) {
return -1;
}
error = irecv_send_command(client, "setenv auto-boot true");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to set auto-boot environmental variable\n");
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "saveenv");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to save environmental variable\n");
irecv_close(client);
client = NULL;
return -1;
}
if (recovery_send_signed_component(client, ipsw, tss, component) < 0) {
error("ERROR: Unable to send %s to device.\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "go");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to execute %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
if (client) {
irecv_close(client);
client = NULL;
}
return 0;
}
int recovery_send_applelogo(const char* ipsw, plist_t tss) {
irecv_error_t error = 0;
irecv_client_t client = NULL;
char* component = "AppleLogo";
info("Sending %s...\n", component);
error = recovery_open_with_timeout(&client);
if (error != IRECV_E_SUCCESS) {
return -1;
}
if (recovery_send_signed_component(client, ipsw, tss, component) < 0) {
error("ERROR: Unable to send %s to device.\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "setpicture 1");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to set %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "bgcolor 0 0 0");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to display %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
if (client) {
irecv_close(client);
client = NULL;
}
return 0;
}
int recovery_send_devicetree(const char* ipsw, plist_t tss) {
irecv_error_t error = 0;
irecv_client_t client = NULL;
char *component = "RestoreDeviceTree";
error = recovery_open_with_timeout(&client);
if (error != IRECV_E_SUCCESS) {
return -1;
}
if (recovery_send_signed_component(client, ipsw, tss, component) < 0) {
error("ERROR: Unable to send %s to device.\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "devicetree");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to execute %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
if (client) {
irecv_close(client);
client = NULL;
}
return 0;
}
int recovery_send_ramdisk(const char* ipsw, plist_t tss) {
irecv_error_t error = 0;
irecv_client_t client = NULL;
char *component = "RestoreRamDisk";
error = recovery_open_with_timeout(&client);
if (error != IRECV_E_SUCCESS) {
return -1;
}
if (recovery_send_signed_component(client, ipsw, tss, component) < 0) {
error("ERROR: Unable to send %s to device.\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "ramdisk");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to execute %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
if (client) {
irecv_close(client);
client = NULL;
}
return 0;
}
int recovery_send_kernelcache(const char* ipsw, plist_t tss) {
irecv_error_t error = 0;
irecv_client_t client = NULL;
char *component = "RestoreKernelCache";
error = recovery_open_with_timeout(&client);
if (error != IRECV_E_SUCCESS) {
return -1;
}
if (recovery_send_signed_component(client, ipsw, tss, component) < 0) {
error("ERROR: Unable to send %s to device.\n", component);
irecv_close(client);
client = NULL;
return -1;
}
error = irecv_send_command(client, "bootx");
if (error != IRECV_E_SUCCESS) {
error("ERROR: Unable to execute %s\n", component);
irecv_close(client);
client = NULL;
return -1;
}
if (client) {
irecv_close(client);
client = NULL;
}
return 0;
}
int recovery_get_ecid(uint64_t* ecid) {
irecv_client_t recovery = NULL;
if(recovery_open_with_timeout(&recovery) < 0) {
return -1;
}
irecv_error_t error = irecv_get_ecid(recovery, ecid);
if (error != IRECV_E_SUCCESS) {
irecv_close(recovery);
return -1;
}
irecv_close(recovery);
recovery = NULL;
return 0;
}
int recovery_get_cpid(uint32_t* cpid) {
irecv_client_t recovery = NULL;
if(recovery_open_with_timeout(&recovery) < 0) {
return -1;
}
irecv_error_t error = irecv_get_cpid(recovery, cpid);
if (error != IRECV_E_SUCCESS) {
irecv_close(recovery);
return -1;
}
irecv_close(recovery);
recovery = NULL;
return 0;
}
int recovery_get_bdid(uint32_t* bdid) {
irecv_client_t recovery = NULL;
if(recovery_open_with_timeout(&recovery) < 0) {
return -1;
}
irecv_error_t error = irecv_get_bdid(recovery, bdid);
if (error != IRECV_E_SUCCESS) {
irecv_close(recovery);
return -1;
}
irecv_close(recovery);
recovery = NULL;
return 0;
}
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