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diff --git a/src/asr.c b/src/asr.c
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+/*
+ * asr.h
+ * Functions for handling asr connections
+ *
+ * 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 <string.h>
+#include <libimobiledevice/libimobiledevice.h>
+
+#include "asr.h"
+#include "idevicerestore.h"
+
+#define ASR_PORT 12345
+#define ASR_BUFFER_SIZE 65536
+
+int asr_open_with_timeout(idevice_t device, idevice_connection_t* asr) {
+ int i = 0;
+ int attempts = 10;
+ idevice_connection_t connection = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+
+ *asr = NULL;
+
+ if (device == NULL) {
+ return -1;
+ }
+
+ debug("Connecting to ASR\n");
+ for (i = 1; i <= attempts; i++) {
+ device_error = idevice_connect(device, ASR_PORT, &connection);
+ if (device_error == IDEVICE_E_SUCCESS) {
+ break;
+ }
+
+ if (i >= attempts) {
+ error("ERROR: Unable to connect to ASR client\n");
+ return -1;
+ }
+
+ sleep(2);
+ debug("Retrying connection...\n");
+ }
+
+ *asr = connection;
+ return 0;
+}
+
+int asr_receive(idevice_connection_t asr, plist_t* data) {
+ uint32_t size = 0;
+ char* buffer = NULL;
+ plist_t request = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+
+ *data = NULL;
+
+ buffer = (char*) malloc(ASR_BUFFER_SIZE);
+ if (buffer == NULL) {
+ error("ERROR: Unable to allocate memory for ASR receive buffer\n");
+ return -1;
+ }
+ memset(buffer, '\0', ASR_BUFFER_SIZE);
+
+ device_error = idevice_connection_receive(asr, buffer, ASR_BUFFER_SIZE, &size);
+ if (device_error != IDEVICE_E_SUCCESS) {
+ error("ERROR: Unable to receive data from ASR\n");
+ free(buffer);
+ return -1;
+ }
+ plist_from_xml(buffer, size, &request);
+
+ *data = request;
+
+ debug("Received %d bytes:\n%s\n", size, buffer);
+ free(buffer);
+ return 0;
+}
+
+int asr_send(idevice_connection_t asr, plist_t* data) {
+ uint32_t size = 0;
+ char* buffer = NULL;
+
+ plist_to_xml(data, &buffer, &size);
+ if (asr_send_buffer(asr, buffer, size) < 0) {
+ error("ERROR: Unable to send plist to ASR\n");
+ free(buffer);
+ return -1;
+ }
+
+ debug("Sent %d bytes:\n", size);
+ debug_plist(data);
+ free(buffer);
+ return 0;
+}
+
+int asr_send_buffer(idevice_connection_t asr, const char* data, uint32_t size) {
+ uint32_t bytes = 0;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+
+ device_error = idevice_connection_send(asr, data, size, &bytes);
+ if (device_error != IDEVICE_E_SUCCESS || bytes != size) {
+ error("ERROR: Unable to send data to ASR\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+void asr_close(idevice_connection_t asr) {
+ if (asr != NULL) {
+ idevice_disconnect(asr);
+ asr = NULL;
+ }
+}
+
+int asr_perform_validation(idevice_connection_t asr, const char* filesystem) {
+ FILE* file = NULL;
+ uint64_t length = 0;
+ char* command = NULL;
+ plist_t node = NULL;
+ plist_t packet = NULL;
+ plist_t packet_info = NULL;
+ plist_t payload_info = NULL;
+
+ file = fopen(filesystem, "rb");
+ if (file == NULL) {
+ return -1;
+ }
+
+ fseek(file, 0, SEEK_END);
+ length = ftell(file);
+ fseek(file, 0, SEEK_SET);
+
+ payload_info = plist_new_dict();
+ plist_dict_insert_item(payload_info, "Port", plist_new_uint(1));
+ plist_dict_insert_item(payload_info, "Size", plist_new_uint(length));
+
+ packet_info = plist_new_dict();
+ plist_dict_insert_item(packet_info, "FEC Slice Stride", plist_new_uint(40));
+ plist_dict_insert_item(packet_info, "Packet Payload Size", plist_new_uint(1450));
+ plist_dict_insert_item(packet_info, "Packets Per FEC", plist_new_uint(25));
+ plist_dict_insert_item(packet_info, "Payload", payload_info);
+ plist_dict_insert_item(packet_info, "Stream ID", plist_new_uint(1));
+ plist_dict_insert_item(packet_info, "Version", plist_new_uint(1));
+
+ if (asr_send(asr, packet_info)) {
+ error("ERROR: Unable to sent packet information to ASR\n");
+ plist_free(packet_info);
+ return -1;
+ }
+ plist_free(packet_info);
+
+ while (1) {
+ if (asr_receive(asr, &packet) < 0) {
+ error("ERROR: Unable to receive validation packet\n");
+ return -1;
+ }
+
+ node = plist_dict_get_item(packet, "Command");
+ if (!node || plist_get_node_type(node) != PLIST_STRING) {
+ error("ERROR: Unable to find command node in validation request\n");
+ return -1;
+ }
+ plist_get_string_val(node, &command);
+
+ if (!strcmp(command, "OOBData")) {
+ asr_handle_oob_data_request(asr, packet, file);
+
+
+ plist_free(packet);
+
+ } else if(!strcmp(command, "Payload")) {
+ plist_free(packet);
+ break;
+
+ } else {
+ error("ERROR: Unknown command received from ASR\n");
+ plist_free(packet);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int asr_handle_oob_data_request(idevice_connection_t asr, plist_t packet, FILE* file) {
+ char* oob_data = NULL;
+ uint64_t oob_offset = 0;
+ uint64_t oob_length = 0;
+ plist_t oob_length_node = NULL;
+ plist_t oob_offset_node = NULL;
+
+ oob_length_node = plist_dict_get_item(packet, "OOB Length");
+ if (!oob_length_node || PLIST_UINT != plist_get_node_type(oob_length_node)) {
+ error("ERROR: Unable to find OOB data length\n");
+ return -1;
+ }
+ plist_get_uint_val(oob_length_node, &oob_length);
+
+ oob_offset_node = plist_dict_get_item(packet, "OOB Offset");
+ if (!oob_offset_node || PLIST_UINT != plist_get_node_type(oob_offset_node)) {
+ error("ERROR: Unable to find OOB data offset\n");
+ return -1;
+ }
+ plist_get_uint_val(oob_offset_node, &oob_offset);
+
+ oob_data = (char*) malloc(oob_length);
+ if (oob_data == NULL) {
+ error("ERROR: Out of memory\n");
+ plist_free(packet);
+ return -1;
+ }
+
+ fseek(file, oob_offset, SEEK_SET);
+ if (fread(oob_data, 1, oob_length, file) != oob_length) {
+ error("ERROR: Unable to read OOB data from filesystem offset\n");
+ plist_free(packet);
+ free(oob_data);
+ return -1;
+ }
+
+ if (asr_send_buffer(asr, oob_data, oob_length) < 0) {
+ error("ERROR: Unable to send OOB data to ASR\n");
+ plist_free(packet);
+ free(oob_data);
+ return -1;
+ }
+ free(oob_data);
+ return 0;
+}
+
+int asr_send_payload(idevice_connection_t asr, const char* filesystem) {
+ int i = 0;
+ char data[1450];
+ FILE* file = NULL;
+ uint32_t bytes = 0;
+ uint32_t count = 0;
+ uint32_t length = 0;
+ double progress = 0;
+
+ file = fopen(filesystem, "rb");
+ if (file == NULL) {
+ return -1;
+ }
+
+ fseek(file, 0, SEEK_END);
+ length = ftell(file);
+ fseek(file, 0, SEEK_SET);
+
+ for(i = length; i > 0; i -= 1450) {
+ int size = 1450;
+ if (i < 1450) {
+ size = i;
+ }
+
+ if (fread(data, 1, size, file) != (unsigned int) size) {
+ error("Error reading filesystem\n");
+ fclose(file);
+ return -1;
+ }
+
+ if (asr_send_buffer(asr, data, size) < 0) {
+ error("ERROR: Unable to send filesystem payload\n");
+ fclose(file);
+ return -1;
+ }
+
+ bytes += size;
+ progress = ((double) bytes/ (double) length) * 100.0;
+ print_progress_bar("Extracting", progress);
+
+ }
+
+ fclose(file);
+ return 0;
+}
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