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-rw-r--r--src/restore.c564
1 files changed, 378 insertions, 186 deletions
diff --git a/src/restore.c b/src/restore.c
index 485df9b..fc22b75 100644
--- a/src/restore.c
+++ b/src/restore.c
@@ -24,11 +24,11 @@
#include <string.h>
#include <libimobiledevice/restore.h>
+#include "asr.h"
+#include "tss.h"
#include "restore.h"
#include "idevicerestore.h"
-#define ASR_PORT 12345
-
#define CREATE_PARTITION_MAP 12
#define CREATE_FILESYSTEM 13
#define RESTORE_IMAGE 14
@@ -44,8 +44,194 @@
#define WAIT_FOR_DEVICE 33
#define LOAD_NOR 36
+static int restore_device_connected = 0;
+
+int restore_check_mode(const char* uuid) {
+ char* type = NULL;
+ uint64_t version = 0;
+ idevice_t device = NULL;
+ restored_client_t restore = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+ restored_error_t restore_error = RESTORE_E_SUCCESS;
+
+ device_error = idevice_new(&device, uuid);
+ if (device_error != IDEVICE_E_SUCCESS) {
+ return -1;
+ }
+
+ restore_error = restored_client_new(device, &restore, "idevicerestore");
+ if (restore_error != RESTORE_E_SUCCESS) {
+ idevice_free(device);
+ return -1;
+ }
+
+ restore_error = restored_query_type(restore, &type, &version);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ restored_client_free(restore);
+ idevice_free(device);
+ return -1;
+ }
+
+ restored_client_free(restore);
+ idevice_free(device);
+ restore = NULL;
+ device = NULL;
+ return 0;
+}
+
+int restore_check_device(const char* uuid) {
+ int i = 0;
+ char* type = NULL;
+ char* model = NULL;
+ plist_t node = NULL;
+ uint64_t version = 0;
+ idevice_t device = NULL;
+ restored_client_t restore = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+ restored_error_t restore_error = RESTORE_E_SUCCESS;
+
+ device_error = idevice_new(&device, uuid);
+ if (device_error != IDEVICE_E_SUCCESS) {
+ return -1;
+ }
+
+ restore_error = restored_client_new(device, &restore, "idevicerestore");
+ if (restore_error != RESTORE_E_SUCCESS) {
+ idevice_free(device);
+ return -1;
+ }
+
+ restore_error = restored_query_type(restore, &type, &version);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ restored_client_free(restore);
+ idevice_free(device);
+ return -1;
+ }
+
+ restore_error = restored_get_value(restore, "HardwareModel", &node);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ error("ERROR: Unable to get HardwareModel from restored\n");
+ restored_client_free(restore);
+ idevice_free(device);
+ return -1;
+ }
+
+ restored_client_free(restore);
+ idevice_free(device);
+ restore = NULL;
+ device = NULL;
+
+ if (!node || plist_get_node_type(node) != PLIST_STRING) {
+ error("ERROR: Unable to get HardwareModel information\n");
+ if (node)
+ plist_free(node);
+ return -1;
+ }
+ plist_get_string_val(node, &model);
+
+ for (i = 0; idevicerestore_devices[i].model != NULL; i++) {
+ if (!strcasecmp(model, idevicerestore_devices[i].model)) {
+ break;
+ }
+ }
+
+ return idevicerestore_devices[i].device_id;
+}
+
+void restore_device_callback(const idevice_event_t* event, void* user_data) {
+ if (event->event == IDEVICE_DEVICE_ADD) {
+ restore_device_connected = 1;
+
+ } else if (event->event == IDEVICE_DEVICE_REMOVE) {
+ restore_device_connected = 0;
+ }
+}
+
+int restore_reboot(const char* uuid) {
+ idevice_t device = NULL;
+ restored_client_t restore = NULL;
+ restored_error_t restore_error = RESTORE_E_SUCCESS;
+ if (restore_open_with_timeout(uuid, &device, &restore) < 0) {
+ error("ERROR: Unable to open device in restore mode\n");
+ return -1;
+ }
+
+ restore_error = restored_reboot(restore);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ error("ERROR: Unable to reboot the device from restore mode\n");
+ restore_close(device, restore);
+ return -1;
+ }
+
+ restore_close(device, restore);
+ restore = NULL;
+ device = NULL;
+ return 0;
+}
+
+int restore_open_with_timeout(const char* uuid, idevice_t* device, restored_client_t* restore) {
+ int i = 0;
+ int attempts = 10;
+ idevice_t context = NULL;
+ restored_client_t client = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+ restored_error_t restore_error = RESTORE_E_SUCCESS;
+
+ *device = NULL;
+ *restore = NULL;
+
+ device_error = idevice_event_subscribe(&restore_device_callback, NULL);
+ if (device_error != IDEVICE_E_SUCCESS) {
+ error("ERROR: Unable to subscribe to device events\n");
+ return -1;
+ }
+
+ for (i = 1; i <= attempts; i++) {
+ if (restore_device_connected == 1) {
+ break;
+ }
+
+ if (i == attempts) {
+ error("ERROR: Unable to connect to device in restore mode\n");
+ }
+
+ sleep(2);
+ }
+
+ device_error = idevice_new(&context, uuid);
+ if (device_error != IDEVICE_E_SUCCESS) {
+ return -1;
+ }
+
+ restore_error = restored_client_new(context, &client, "idevicerestore");
+ if (restore_error != RESTORE_E_SUCCESS) {
+ idevice_event_unsubscribe();
+ idevice_free(context);
+ return -1;
+ }
+
+ restore_error = restored_query_type(client, NULL, NULL);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ restored_client_free(client);
+ idevice_event_unsubscribe();
+ idevice_free(context);
+ return -1;
+ }
+
+ *device = context;
+ *restore = client;
+ return 0;
+}
+
+void restore_close(idevice_t device, restored_client_t restore) {
+ if (restore)
+ restored_client_free(restore);
+ if (device)
+ idevice_free(device);
+}
+
const char* restore_progress_string(unsigned int operation) {
- switch(operation) {
+ switch (operation) {
case CREATE_PARTITION_MAP:
return "Creating partition map";
@@ -93,208 +279,88 @@ const char* restore_progress_string(unsigned int operation) {
}
}
-
int restore_handle_progress_msg(restored_client_t client, plist_t msg) {
plist_t node = NULL;
+ uint64_t progress = 0;
uint64_t operation = 0;
- uint64_t uprogress = 0;
- uint32_t progress = 0;
node = plist_dict_get_item(msg, "Operation");
- if (node && PLIST_UINT == plist_get_node_type(node)) {
- plist_get_uint_val(node, &operation);
- } else {
+ if (!node || plist_get_node_type(node) != PLIST_UINT) {
debug("Failed to parse operation from ProgressMsg plist\n");
- return 0;
+ return -1;
}
+ plist_get_uint_val(node, &operation);
node = plist_dict_get_item(msg, "Progress");
- if (node && PLIST_UINT == plist_get_node_type(node)) {
- plist_get_uint_val(node, &uprogress);
- progress = (uint32_t) uprogress;
- } else {
+ if (!node || plist_get_node_type(node) != PLIST_UINT) {
debug("Failed to parse progress from ProgressMsg plist \n");
- return 0;
+ return -1;
}
+ plist_get_uint_val(node, &progress);
+
+ if ((progress > 0) && (progress < 100)) {
+ print_progress_bar(restore_progress_string(operation), (double) progress);
- if ((progress > 0) && (progress < 100))
- info("%s - Progress: %ul%%\n", restore_progress_string(operation), progress);
- else
+ } else {
info("%s\n", restore_progress_string(operation));
+ }
return 0;
}
int restore_handle_status_msg(restored_client_t client, plist_t msg) {
info("Got status message\n");
+ debug_plist(msg);
return 0;
}
-int asr_send_system_image_data_from_file(idevice_t device, restored_client_t client, const char *filesystem) {
+int restore_send_filesystem(idevice_t device, const char* filesystem) {
int i = 0;
- char buffer[0x1000];
- uint32_t recv_bytes = 0;
- memset(buffer, '\0', 0x1000);
- idevice_connection_t connection = NULL;
- idevice_error_t ret = IDEVICE_E_UNKNOWN_ERROR;
-
- for (i = 0; i < 5; i++) {
- ret = idevice_connect(device, ASR_PORT, &connection);
- if (ret == IDEVICE_E_SUCCESS)
- break;
-
- else
- sleep(1);
- }
-
- if (ret != IDEVICE_E_SUCCESS)
- return ret;
-
- memset(buffer, '\0', 0x1000);
- ret = idevice_connection_receive(connection, buffer, 0x1000, &recv_bytes);
- if (ret != IDEVICE_E_SUCCESS) {
- idevice_disconnect(connection);
- return ret;
- }
- info("Received %d bytes\n", recv_bytes);
- info("%s", buffer);
+ FILE* file = NULL;
+ plist_t data = NULL;
+ idevice_connection_t asr = NULL;
+ idevice_error_t device_error = IDEVICE_E_UNKNOWN_ERROR;
- FILE* fd = fopen(filesystem, "rb");
- if (fd == NULL) {
- idevice_disconnect(connection);
- return ret;
+ if (asr_open_with_timeout(device, &asr) < 0) {
+ error("ERROR: Unable to connect to ASR\n");
+ return -1;
}
-
- fseek(fd, 0, SEEK_END);
- uint64_t len = ftell(fd);
- fseek(fd, 0, SEEK_SET);
-
info("Connected to ASR\n");
- plist_t dict = plist_new_dict();
- plist_dict_insert_item(dict, "FEC Slice Stride", plist_new_uint(40));
- plist_dict_insert_item(dict, "Packet Payload Size", plist_new_uint(1450));
- plist_dict_insert_item(dict, "Packets Per FEC", plist_new_uint(25));
-
- plist_t payload = plist_new_dict();
- plist_dict_insert_item(payload, "Port", plist_new_uint(1));
- plist_dict_insert_item(payload, "Size", plist_new_uint(len));
- plist_dict_insert_item(dict, "Payload", payload);
- plist_dict_insert_item(dict, "Stream ID", plist_new_uint(1));
- plist_dict_insert_item(dict, "Version", plist_new_uint(1));
-
- char* xml = NULL;
- unsigned int dict_size = 0;
- unsigned int sent_bytes = 0;
- plist_to_xml(dict, &xml, &dict_size);
-
- ret = idevice_connection_send(connection, xml, dict_size, &sent_bytes);
- if (ret != IDEVICE_E_SUCCESS) {
- idevice_disconnect(connection);
- return ret;
+ // we don't really need to do anything with this,
+ // we're just clearing the output buffer
+ if (asr_receive(asr, &data) < 0) {
+ error("ERROR: Unable to receive data from ASR\n");
+ asr_close(asr);
+ return -1;
}
-
- info("Sent %d bytes\n", sent_bytes);
- info("%s", xml);
- plist_free(dict);
- free(xml);
-
- char* command = NULL;
- do {
- memset(buffer, '\0', 0x1000);
- ret = idevice_connection_receive(connection, buffer, 0x1000, &recv_bytes);
- if (ret != IDEVICE_E_SUCCESS) {
- idevice_disconnect(connection);
- return ret;
- }
- info("Received %d bytes\n", recv_bytes);
- info("%s", buffer);
-
- plist_t request = NULL;
- plist_from_xml(buffer, recv_bytes, &request);
- plist_t command_node = plist_dict_get_item(request, "Command");
- if (command_node && PLIST_STRING == plist_get_node_type(command_node)) {
- plist_get_string_val(command_node, &command);
- if (!strcmp(command, "OOBData")) {
- plist_t oob_length_node = plist_dict_get_item(request, "OOB Length");
- if (!oob_length_node || PLIST_UINT != plist_get_node_type(oob_length_node)) {
- error("Error fetching OOB Length\n");
- idevice_disconnect(connection);
- return IDEVICE_E_UNKNOWN_ERROR;
- }
- uint64_t oob_length = 0;
- plist_get_uint_val(oob_length_node, &oob_length);
-
- plist_t oob_offset_node = plist_dict_get_item(request, "OOB Offset");
- if (!oob_offset_node || PLIST_UINT != plist_get_node_type(oob_offset_node)) {
- error("Error fetching OOB Offset\n");
- idevice_disconnect(connection);
- return IDEVICE_E_UNKNOWN_ERROR;
- }
- uint64_t oob_offset = 0;
- plist_get_uint_val(oob_offset_node, &oob_offset);
-
- char* oob_data = (char*) malloc(oob_length);
- if (oob_data == NULL) {
- error("Out of memory\n");
- idevice_disconnect(connection);
- return IDEVICE_E_UNKNOWN_ERROR;
- }
-
- fseek(fd, oob_offset, SEEK_SET);
- if (fread(oob_data, 1, oob_length, fd) != oob_length) {
- error("Unable to read filesystem offset\n");
- idevice_disconnect(connection);
- free(oob_data);
- return ret;
- }
-
- ret = idevice_connection_send(connection, oob_data, oob_length, &sent_bytes);
- if (sent_bytes != oob_length || ret != IDEVICE_E_SUCCESS) {
- error("Unable to send %d bytes to asr\n", sent_bytes);
- idevice_disconnect(connection);
- free(oob_data);
- return ret;
- }
- plist_free(request);
- free(oob_data);
- }
- }
-
- } while (strcmp(command, "Payload"));
-
- fseek(fd, 0, SEEK_SET);
- char data[1450];
- for (i = len; i > 0; i -= 1450) {
- int size = 1450;
- if (i < 1450) {
- size = i;
- }
-
- if (fread(data, 1, size, fd) != (unsigned int) size) {
- fclose(fd);
- idevice_disconnect(connection);
- error("Error reading filesystem\n");
- return IDEVICE_E_UNKNOWN_ERROR;
- }
-
- ret = idevice_connection_send(connection, data, size, &sent_bytes);
- if (ret != IDEVICE_E_SUCCESS) {
- fclose(fd);
- }
-
- if (i % (1450 * 1000) == 0) {
- info(".");
- }
+ plist_free(data);
+
+ // this step sends requested chunks of data from various offsets to asr so
+ // it can validate the filesystem before installing it
+ debug("Preparing to validate the filesystem\n");
+ if (asr_perform_validation(asr, filesystem) < 0) {
+ error("ERROR: ASR was unable to validate the filesystem\n");
+ asr_close(asr);
+ return -1;
+ }
+ info("Filesystem validated\n");
+
+ // once the target filesystem has been validated, ASR then requests the
+ // entire filesystem to be sent.
+ debug("Preparing to send filesystem\n");
+ if (asr_send_payload(asr, filesystem) < 0) {
+ error("ERROR: Unable to send payload to ASR\n");
+ asr_close(asr);
+ return -1;
}
+ info("Filesystem finished\n");
- info("Done sending filesystem\n");
- fclose(fd);
- ret = idevice_disconnect(connection);
- return ret;
+ asr_close(asr);
+ return 0;
}
-int restore_send_kernelcache(restored_client_t client, char *kernel_data, int len) {
+int restore_send_kernelcache(restored_client_t client, char* kernel_data, int len) {
info("Sending kernelcache\n");
plist_t kernelcache_node = plist_new_data(kernel_data, len);
@@ -314,19 +380,17 @@ int restore_send_kernelcache(restored_client_t client, char *kernel_data, int le
return 0;
}
-int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
+int restore_send_nor(restored_client_t client, const char* ipsw, plist_t tss) {
char* llb_path = NULL;
- char* llb_blob = NULL;
- if (get_tss_data_by_name(tss, "LLB", &llb_path, &llb_blob) < 0) {
+ if (tss_get_entry_path(tss, "LLB", &llb_path) < 0) {
error("ERROR: Unable to get LLB info from TSS response\n");
return -1;
}
char* llb_filename = strstr(llb_path, "LLB");
if (llb_filename == NULL) {
- error("ERROR: Unable to extrac firmware path from LLB filename\n");
+ error("ERROR: Unable to extract firmware path from LLB filename\n");
free(llb_path);
- free(llb_blob);
return -1;
}
@@ -345,7 +409,6 @@ int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
if (ipsw_extract_to_memory(ipsw, manifest_file, &manifest_data, &manifest_size) < 0) {
error("ERROR: Unable to extract firmware manifest from ipsw\n");
free(llb_path);
- free(llb_blob);
return -1;
}
@@ -359,7 +422,7 @@ int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
if (filename != NULL) {
memset(firmware_filename, '\0', sizeof(firmware_filename));
snprintf(firmware_filename, sizeof(firmware_filename), "%s/%s", firmware_path, filename);
- if (get_signed_component_by_path(ipsw, tss, firmware_filename, &llb_data, &llb_size) < 0) {
+ if (get_signed_component(ipsw, tss, firmware_filename, &llb_data, &llb_size) < 0) {
error("ERROR: Unable to get signed LLB\n");
return -1;
}
@@ -374,7 +437,7 @@ int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
while (filename != NULL) {
memset(firmware_filename, '\0', sizeof(firmware_filename));
snprintf(firmware_filename, sizeof(firmware_filename), "%s/%s", firmware_path, filename);
- if (get_signed_component_by_path(ipsw, tss, firmware_filename, &nor_data, &nor_size) < 0) {
+ if (get_signed_component(ipsw, tss, firmware_filename, &nor_data, &nor_size) < 0) {
error("ERROR: Unable to get signed firmware %s\n", firmware_filename);
break;
}
@@ -387,11 +450,7 @@ int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
}
plist_dict_insert_item(dict, "NorImageData", norimage_array);
- int sz = 0;
- char* xml = NULL;
- plist_to_xml(dict, &xml, &sz);
- debug("%s", xml);
- free(xml);
+ debug_plist(dict);
restored_error_t ret = restored_send(client, dict);
if (ret != RESTORE_E_SUCCESS) {
@@ -403,3 +462,136 @@ int restore_send_nor_data(restored_client_t client, char* ipsw, plist_t tss) {
plist_free(dict);
return 0;
}
+
+int restore_handle_data_request_msg(idevice_t device, restored_client_t restore, plist_t message, plist_t tss, const char* ipsw, const char* filesystem) {
+ char* type = NULL;
+ plist_t node = NULL;
+
+ // checks and see what kind of data restored is requests and pass
+ // the request to its own handler
+ node = plist_dict_get_item(message, "DataType");
+ if (node && PLIST_STRING == plist_get_node_type(node)) {
+ plist_get_string_val(node, &type);
+
+ // this request is sent when restored is ready to receive the filesystem
+ if (!strcmp(type, "SystemImageData")) {
+ restore_send_filesystem(device, filesystem);
+
+ }
+
+ else if (!strcmp(type, "KernelCache")) {
+ int kernelcache_size = 0;
+ char* kernelcache_data = NULL;
+ char* kernelcache_path = NULL;
+ if (tss_get_entry_path(tss, "KernelCache", &kernelcache_path) < 0) {
+ error("ERROR: Unable to find kernelcache path\n");
+ return -1;
+ }
+
+ if (get_signed_component(ipsw, tss, kernelcache_path, &kernelcache_data, &kernelcache_size) < 0) {
+ error("ERROR: Unable to get kernelcache file\n");
+ return -1;
+ }
+ restore_send_kernelcache(restore, kernelcache_data, kernelcache_size);
+ free(kernelcache_data);
+
+ }
+
+ else if (!strcmp(type, "NORData")) {
+ restore_send_nor(restore, ipsw, tss);
+
+ } else {
+ // Unknown DataType!!
+ debug("Unknown data request received\n");
+ }
+ }
+ return 0;
+}
+
+int restore_device(const char* uuid, const char* ipsw, plist_t tss, const char* filesystem) {
+ int error = 0;
+ char* type = NULL;
+ char* kernel = NULL;
+ plist_t node = NULL;
+ plist_t message = NULL;
+ idevice_t device = NULL;
+ restored_client_t restore = NULL;
+ idevice_error_t device_error = IDEVICE_E_SUCCESS;
+ restored_error_t restore_error = RESTORE_E_SUCCESS;
+
+ // open our connection to the device and verify we're in restore mode
+ if (restore_open_with_timeout(uuid, &device, &restore) < 0) {
+ error("ERROR: Unable to open device in restore mode\n");
+ return -1;
+ }
+ info("Device has successfully entered restore mode\n");
+
+ // start the restore process
+ restore_error = restored_start_restore(restore);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ error("ERROR: Unable to start the restore process\n");
+ restore_close(device, restore);
+ return -1;
+ }
+
+ // this is the restore process loop, it reads each message in from
+ // restored and passes that data on to it's specific handler
+ while (!idevicerestore_quit) {
+ restore_error = restored_receive(restore, &message);
+ if (restore_error != RESTORE_E_SUCCESS) {
+ debug("No data to read\n");
+ message = NULL;
+ continue;
+ }
+
+ // discover what kind of message has been received
+ node = plist_dict_get_item(message, "MsgType");
+ if (!node || plist_get_node_type(node) != PLIST_STRING) {
+ debug("Unknown message received\n");
+ debug_plist(message);
+ plist_free(message);
+ message = NULL;
+ continue;
+ }
+ plist_get_string_val(node, &type);
+
+ // data request messages are sent by restored whenever it requires
+ // files sent to the server by the client. these data requests include
+ // SystemImageData, KernelCache, and NORData requests
+ if (!strcmp(type, "DataRequestMsg")) {
+ error = restore_handle_data_request_msg(device, restore, message, tss, ipsw, filesystem);
+ }
+
+ // progress notification messages sent by the restored inform the client
+ // of it's current operation and sometimes percent of progress is complete
+ else if (!strcmp(type, "ProgressMsg")) {
+ error = restore_handle_progress_msg(restore, message);
+ }
+
+ // status messages usually indicate the current state of the restored
+ // process or often to signal an error has been encountered
+ else if (!strcmp(type, "StatusMsg")) {
+ error = restore_handle_status_msg(restore, message);
+ }
+
+ // there might be some other message types i'm not aware of, but I think
+ // at least the "previous error logs" messages usually end up here
+ else {
+ debug("Unknown message type received\n");
+ debug_plist(message);
+ }
+
+ // finally, if any of these message handlers returned -1 then we encountered
+ // an unrecoverable error, so we need to bail.
+ if (error < 0) {
+ error("ERROR: Unable to successfully restore device\n");
+ idevicerestore_quit = 1;
+ }
+
+ plist_free(message);
+ message = NULL;
+ }
+
+ restore_close(device, restore);
+ return 0;
+}
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