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/*
* dfu.c
* Functions for handling idevices in DFU 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 <libirecovery.h>
#include "dfu.h"
#include "recovery.h"
#include "idevicerestore.h"
int dfu_progress_callback(irecv_client_t client, const irecv_event_t* event) {
if (event->type == IRECV_PROGRESS) {
print_progress_bar(event->progress);
}
return 0;
}
int dfu_client_new(struct idevicerestore_client_t* client, uint32_t timeout) {
struct dfu_client_t* dfu = NULL;
if(client == NULL) {
return -1;
}
if(client->dfu) {
dfu_client_free(client);
}
dfu = (struct dfu_client_t*) malloc(sizeof(struct dfu_client_t));
if (dfu == NULL) {
error("ERROR: Out of memory\n");
return -1;
}
if (dfu_open_with_timeout(dfu, timeout) < 0) {
dfu_client_free(client);
return -1;
}
if(dfu->client->mode != kDfuMode) {
dfu_client_free(client);
return -1;
}
client->dfu = dfu;
return 0;
}
void dfu_client_free(struct idevicerestore_client_t* client) {
struct dfu_client_t* dfu = NULL;
if(client != NULL) {
dfu = client->dfu;
if (dfu != NULL) {
if(dfu->client != NULL) {
irecv_close(dfu->client);
dfu->client = NULL;
}
free(dfu);
}
client->dfu = NULL;
}
}
int dfu_open_with_timeout(struct idevicerestore_client_t* client, uint32_t timeout) {
int i = 0;
irecv_client_t recovery = NULL;
irecv_error_t recovery_error = IRECV_E_UNKNOWN_ERROR;
for (i = 1; i <= timeout; i++) {
recovery_error = irecv_open(&recovery);
if (recovery_error == IRECV_E_SUCCESS) {
break;
}
if (i == timeout) {
error("ERROR: Unable to connect to device in DFU mode\n");
return -1;
}
sleep(1);
debug("Retrying connection...\n");
}
irecv_event_subscribe(recovery, IRECV_PROGRESS, &dfu_progress_callback, NULL);
client->dfu->client = recovery;
return 0;
}
int dfu_check_mode() {
return -1;
}
int dfu_enter_recovery(struct idevicerestore_client_t* client) {
irecv_client_t dfu = NULL;
const char* component = "iBSS";
irecv_error_t dfu_error = IRECV_E_SUCCESS;
if (recovery_open_with_timeout(client) < 0 || dfu->mode != kDfuMode) {
error("ERROR: Unable to connect to DFU device\n");
if (dfu)
irecv_close(dfu);
return -1;
}
if (recovery_send_signed_component(client, "iBSS") < 0) {
error("ERROR: Unable to send %s to device\n", component);
irecv_close(dfu);
return -1;
}
dfu_error = irecv_reset(client->dfu->client);
if (dfu_error != IRECV_E_SUCCESS) {
error("ERROR: Unable to reset device\n");
irecv_close(dfu);
return -1;
}
irecv_close(client->dfu->client);
client->dfu->client = NULL;
// Reconnect to device, but this time make sure we're not still in DFU mode
if (recovery_open_with_timeout(client) < 0 || client->mode->index != kDfuMode) {
error("ERROR: Unable to connect to recovery device\n");
if (client->dfu->client)
irecv_close(client->dfu->client);
return -1;
}
client->mode = &idevicerestore_modes[MODE_RECOVERY];
irecv_close(client->dfu->client);
client->dfu->client = NULL;
return 0;
}
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