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-rw-r--r--src/asr.c292
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diff --git a/src/asr.c b/src/asr.c
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--- a/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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