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-rw-r--r--src/restore.c529
1 files changed, 529 insertions, 0 deletions
diff --git a/src/restore.c b/src/restore.c
index e96fed9..5da614f 100644
--- a/src/restore.c
+++ b/src/restore.c
@@ -23,8 +23,10 @@
#include <stdlib.h>
#include <string.h>
#include <libimobiledevice/restore.h>
+#include <zip.h>
#include "asr.h"
+#include "fls.h"
#include "tss.h"
#include "common.h"
#include "restore.h"
@@ -510,6 +512,35 @@ int restore_handle_status_msg(restored_client_t client, plist_t msg) {
return result;
}
+int restore_handle_bb_update_status_msg(restored_client_t client, plist_t msg)
+{
+ int result = -1;
+ plist_t node = plist_dict_get_item(msg, "Accepted");
+ uint8_t accepted = 0;
+ plist_get_bool_val(node, &accepted);
+ debug_plist(msg);
+
+ if (!accepted) {
+ error("ERROR: device didn't accept BasebandData\n");
+ return result;
+ }
+
+ uint8_t done = 0;
+ node = plist_access_path(msg, 2, "Output", "done");
+ if (node && plist_get_node_type(node) == PLIST_BOOLEAN) {
+ plist_get_bool_val(node, &done);
+ }
+
+ if (done) {
+ info("Updating Baseband completed.\n");
+ } else {
+ info("Updating Baseband in progress...\n");
+ }
+ result = 0;
+
+ return result;
+}
+
int restore_send_filesystem(idevice_t device, const char* filesystem) {
int i = 0;
FILE* file = NULL;
@@ -737,6 +768,492 @@ int restore_send_nor(restored_client_t restore, struct idevicerestore_client_t*
return 0;
}
+int restore_send_baseband_data(restored_client_t restore, struct idevicerestore_client_t* client, plist_t build_identity, plist_t message)
+{
+ int res = -1;
+ uint64_t bb_cert_id = 0;
+ unsigned char* bb_snum = NULL;
+ uint64_t bb_snum_size = 0;
+ unsigned char* bb_nonce = NULL;
+ uint64_t bb_nonce_size = 0;
+
+ // setup request data
+ plist_t arguments = plist_dict_get_item(message, "Arguments");
+ if (arguments && plist_get_node_type(arguments) == PLIST_DICT) {
+ plist_t bb_cert_id_node = plist_dict_get_item(arguments, "CertID");
+ if (bb_cert_id_node && plist_get_node_type(bb_cert_id_node) == PLIST_UINT) {
+ plist_get_uint_val(bb_cert_id_node, &bb_cert_id);
+ }
+ plist_t bb_snum_node = plist_dict_get_item(arguments, "ChipSerialNo");
+ if (bb_snum_node && plist_get_node_type(bb_snum_node) == PLIST_DATA) {
+ plist_get_data_val(bb_snum_node, (char**)&bb_snum, &bb_snum_size);
+ }
+ plist_t bb_nonce_node = plist_dict_get_item(arguments, "Nonce");
+ if (bb_nonce_node && plist_get_node_type(bb_nonce_node) == PLIST_DATA) {
+ plist_get_data_val(bb_nonce_node, (char**)&bb_nonce, &bb_nonce_size);
+ }
+ }
+
+ // create Baseband TSS request
+ plist_t request = tss_create_baseband_request(build_identity, client->ecid, bb_cert_id, bb_snum, bb_snum_size, bb_nonce, bb_nonce_size);
+ if (request == NULL) {
+ error("ERROR: Unable to create Baseand TSS request\n");
+ return -1;
+ }
+
+ // send Baseband TSS request
+ debug_plist(request);
+ info("Sending Baseband TSS request... ");
+ plist_t response = tss_send_request(request);
+ plist_free(request);
+ if (response == NULL) {
+ error("ERROR: Unable to fetch Baseband TSS\n");
+ return -1;
+ }
+ debug_plist(response);
+
+ // check for BBTicket in result
+ plist_t bbticket = plist_dict_get_item(response, "BBTicket");
+ if (!bbticket || plist_get_node_type(bbticket) != PLIST_DATA) {
+ error("ERROR: Could not find BBTicket in Baseband TSS response\n");
+ free(response);
+ return -1;
+ }
+
+ // check for RamPSI-Blob in result
+ plist_t rampsi = plist_access_path(response, 2, "BasebandFirmware", "RamPSI-Blob");
+ if (!rampsi || plist_get_node_type(rampsi) != PLIST_DATA) {
+ error("ERROR: Could not find RamPSI-Blob in Baseband TSS response\n");
+ free(response);
+ return -1;
+ }
+
+ // check for FlashPSI-Blob in result
+ plist_t flashpsi = plist_access_path(response, 2, "BasebandFirmware", "FlashPSI-Blob");
+ if (!flashpsi || plist_get_node_type(flashpsi) != PLIST_DATA) {
+ error("ERROR: Could not find FlashPSI-Blob in Baseband TSS response\n");
+ free(response);
+ return -1;
+ }
+
+ // get baseband firmware file path from build identity
+ plist_t bbfw_path = plist_access_path(build_identity, 4, "Manifest", "BasebandFirmware", "Info", "Path");
+ if (!bbfw_path || plist_get_node_type(bbfw_path) != PLIST_STRING) {
+ error("ERROR: Unable to get BasebandFirmware/Info/Path node\n");
+ free(response);
+ return -1;
+ }
+ char* bbfwpath = NULL;
+ plist_get_string_val(bbfw_path, &bbfwpath);
+ if (!bbfwpath) {
+ error("ERROR: Unable to get baseband path\n");
+ free(response);
+ return -1;
+ }
+
+ // extract baseband firmware to temp file
+ char* bbfwtmp = tempnam(NULL, "bbfw_");
+ if (!bbfwtmp) {
+ error("WARNING: Could not generate temporary filename, using bbfw.tmp\n");
+ bbfwtmp = strdup("bbfw.tmp");
+ }
+ if (ipsw_extract_to_file(client->ipsw, bbfwpath, bbfwtmp) != 0) {
+ error("ERROR: Unable to extract baseband firmware from ipsw\n");
+ free(response);
+ return -1;
+ }
+
+ unsigned char* buffer = NULL;
+ unsigned char* blob = NULL;
+ unsigned char* flsdata = NULL;
+ off_t flssize = 0;
+ uint64_t blob_size = 0;
+ int zerr = 0;
+ int zindex = -1;
+ int size = 0;
+ struct zip_stat zstat;
+ struct zip_file* zfile = NULL;
+ struct zip* za = NULL;
+ struct zip_source* zs = NULL;
+ fls_file* fls = NULL;
+
+ za = zip_open(bbfwtmp, 0, &zerr);
+ if (!za) {
+ error("ERROR: Could not open ZIP archive '%s': %d\n", bbfwtmp, zerr);
+ goto leave;
+ }
+
+ if (!bb_nonce) {
+ // just sign psi_ram.fls
+ zindex = zip_name_locate(za, "psi_ram.fls", 0);
+ if (zindex < 0) {
+ error("ERROR: can't locate 'psi_ram.fls' in '%s'\n", bbfwtmp);
+ goto leave;
+ }
+
+ zip_stat_init(&zstat);
+ if (zip_stat_index(za, zindex, 0, &zstat) != 0) {
+ error("ERROR: zip_stat_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ zfile = zip_fopen_index(za, zindex, 0);
+ if (zfile == NULL) {
+ error("ERROR: zip_fopen_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ size = zstat.size;
+ buffer = (unsigned char*) malloc(size+1);
+ if (buffer == NULL) {
+ error("ERROR: Out of memory\n");
+ goto leave;
+ }
+
+ if (zip_fread(zfile, buffer, size) != size) {
+ error("ERROR: zip_fread: failed\n");
+ goto leave;
+ }
+ buffer[size] = '\0';
+
+ zip_fclose(zfile);
+ zfile = NULL;
+
+ fls = fls_parse(buffer, size);
+ free(buffer);
+ buffer = NULL;
+ if (!fls) {
+ error("ERROR: could not parse fls file\n");
+ goto leave;
+ }
+
+ blob = NULL;
+ blob_size = 0;
+ plist_get_data_val(rampsi, (char**)&blob, &blob_size);
+ if (!blob) {
+ error("ERROR: could not get RamPSI-Blob data\n");
+ goto leave;
+ }
+
+ if (fls_update_sig_blob(fls, blob, (unsigned int)blob_size) != 0) {
+ error("ERROR: could not sign psi_ram.fls\n");
+ goto leave;
+ }
+ free(blob);
+ blob = NULL;
+
+ // remove all files from zip
+ int i;
+ int numf = zip_get_num_files(za);
+ for (i = 0; i < numf; i++) {
+ zip_delete(za, i);
+ }
+
+ flssize = fls->size;
+ flsdata = (unsigned char*)malloc(flssize);
+ memcpy(flsdata, fls->data, flssize);
+ fls_free(fls);
+ fls = NULL;
+
+ zs = zip_source_buffer(za, flsdata, flssize, 1);
+ if (!zs) {
+ error("ERROR: out of memory\n");
+ goto leave;
+ }
+
+ if (zip_add(za, "psi_ram.fls", zs) == -1) {
+ error("ERROR: could not add signed psi_ram.fls to archive\n");
+ goto leave;
+ }
+ } else {
+ // sign psi_ram.fls
+ zindex = zip_name_locate(za, "psi_ram.fls", 0);
+ if (zindex < 0) {
+ error("ERROR: can't locate 'psi_ram.fls' in '%s'\n", bbfwtmp);
+ goto leave;
+ }
+
+ zip_stat_init(&zstat);
+ if (zip_stat_index(za, zindex, 0, &zstat) != 0) {
+ error("ERROR: zip_stat_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ zfile = zip_fopen_index(za, zindex, 0);
+ if (zfile == NULL) {
+ error("ERROR: zip_fopen_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ size = zstat.size;
+ buffer = (unsigned char*) malloc(size+1);
+ if (buffer == NULL) {
+ error("ERROR: Out of memory\n");
+ goto leave;
+ }
+
+ if (zip_fread(zfile, buffer, size) != size) {
+ error("ERROR: zip_fread: failed\n");
+ goto leave;
+ }
+ buffer[size] = '\0';
+
+ zip_fclose(zfile);
+ zfile = NULL;
+
+ fls = fls_parse(buffer, size);
+ free(buffer);
+ buffer = NULL;
+ if (!fls) {
+ error("ERROR: could not parse fls file\n");
+ goto leave;
+ }
+
+ blob = NULL;
+ blob_size = 0;
+ plist_get_data_val(rampsi, (char**)&blob, &blob_size);
+ if (!blob) {
+ error("ERROR: could not get RamPSI-Blob data\n");
+ goto leave;
+ }
+
+ if (fls_update_sig_blob(fls, blob, (unsigned int)blob_size) != 0) {
+ error("ERROR: could not sign psi_ram.fls\n");
+ goto leave;
+ }
+ free(blob);
+ blob = NULL;
+
+ flssize = fls->size;
+ flsdata = (unsigned char*)malloc(flssize);
+ memcpy(flsdata, fls->data, flssize);
+ fls_free(fls);
+ fls = NULL;
+
+ zs = zip_source_buffer(za, flsdata, flssize, 1);
+ if (!zs) {
+ error("ERROR: out of memory\n");
+ goto leave;
+ }
+
+ if (zip_replace(za, zindex, zs) == -1) {
+ error("ERROR: could not add signed psi_ram.fls to archive\n");
+ goto leave;
+ }
+
+ // sign psi_flash.fls
+ zindex = zip_name_locate(za, "psi_flash.fls", 0);
+ if (zindex < 0) {
+ error("ERROR: can't locate 'psi_flash.fls' in '%s'\n", bbfwtmp);
+ goto leave;
+ }
+
+ zip_stat_init(&zstat);
+ if (zip_stat_index(za, zindex, 0, &zstat) != 0) {
+ error("ERROR: zip_stat_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ zfile = zip_fopen_index(za, zindex, 0);
+ if (zfile == NULL) {
+ error("ERROR: zip_fopen_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ size = zstat.size;
+ buffer = (unsigned char*) malloc(size+1);
+ if (buffer == NULL) {
+ error("ERROR: Out of memory\n");
+ goto leave;
+ }
+
+ if (zip_fread(zfile, buffer, size) != size) {
+ error("ERROR: zip_fread: failed\n");
+ goto leave;
+ }
+ buffer[size] = '\0';
+
+ zip_fclose(zfile);
+ zfile = NULL;
+
+ fls = fls_parse(buffer, size);
+ free(buffer);
+ buffer = NULL;
+ if (!fls) {
+ error("ERROR: could not parse fls file\n");
+ goto leave;
+ }
+
+ blob = NULL;
+ blob_size = 0;
+ plist_get_data_val(flashpsi, (char**)&blob, &blob_size);
+ if (!blob) {
+ error("ERROR: could not get FlashPSI-Blob data\n");
+ goto leave;
+ }
+
+ if (fls_update_sig_blob(fls, blob, (unsigned int)blob_size) != 0) {
+ error("ERROR: could not sign psi_flash.fls\n");
+ goto leave;
+ }
+ free(blob);
+ blob = NULL;
+
+ flssize = fls->size;
+ flsdata = (unsigned char*)malloc(flssize);
+ memcpy(flsdata, fls->data, flssize);
+ fls_free(fls);
+ fls = NULL;
+
+ zs = zip_source_buffer(za, flsdata, flssize, 1);
+ if (!zs) {
+ error("ERROR: out of memory\n");
+ goto leave;
+ }
+
+ if (zip_replace(za, zindex, zs) == -1) {
+ error("ERROR: could not add signed psi_flash.fls to archive\n");
+ goto leave;
+ }
+
+ // add ticket to ebl.fls
+ zindex = zip_name_locate(za, "ebl.fls", 0);
+ if (zindex < 0) {
+ error("ERROR: can't locate 'ebl.fls' in '%s'\n", bbfwtmp);
+ goto leave;
+ }
+
+ zip_stat_init(&zstat);
+ if (zip_stat_index(za, zindex, 0, &zstat) != 0) {
+ error("ERROR: zip_stat_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ zfile = zip_fopen_index(za, zindex, 0);
+ if (zfile == NULL) {
+ error("ERROR: zip_fopen_index failed for index %d\n", zindex);
+ goto leave;
+ }
+
+ size = zstat.size;
+ buffer = (unsigned char*) malloc(size+1);
+ if (buffer == NULL) {
+ error("ERROR: Out of memory\n");
+ goto leave;
+ }
+
+ if (zip_fread(zfile, buffer, size) != size) {
+ error("ERROR: zip_fread: failed\n");
+ goto leave;
+ }
+ buffer[size] = '\0';
+
+ zip_fclose(zfile);
+ zfile = NULL;
+
+ fls = fls_parse(buffer, size);
+ free(buffer);
+ buffer = NULL;
+ if (!fls) {
+ error("ERROR: could not parse fls file\n");
+ goto leave;
+ }
+
+ blob = NULL;
+ blob_size = 0;
+ plist_get_data_val(bbticket, (char**)&blob, &blob_size);
+ if (!blob) {
+ error("ERROR: could not get BBTicket data\n");
+ goto leave;
+ }
+
+ if (fls_insert_ticket(fls, blob, (unsigned int)blob_size) != 0) {
+ error("ERROR: could not insert BBTicket to ebl.fls\n");
+ goto leave;
+ }
+ free(blob);
+ blob = NULL;
+
+ flssize = fls->size;
+ flsdata = (unsigned char*)malloc(flssize);
+ memcpy(flsdata, fls->data, flssize);
+ fls_free(fls);
+ fls = NULL;
+
+ zs = zip_source_buffer(za, flsdata, flssize, 1);
+ if (!zs) {
+ error("ERROR: out of memory\n");
+ goto leave;
+ }
+
+ if (zip_replace(za, zindex, zs) == -1) {
+ error("ERROR: could not add ticketed ebl.fls to archive\n");
+ goto leave;
+ }
+ }
+
+ // this will write out the modified zip
+ zip_close(za);
+ za = NULL;
+ zs = NULL;
+
+ buffer = NULL;
+ size_t sz = 0;
+ if (read_file(bbfwtmp, (void**)&buffer, &sz) < 0) {
+ error("ERROR: could not read updated bbfw archive\n");
+ goto leave;
+ }
+
+ // send file
+ plist_t dict = plist_new_dict();
+ plist_dict_insert_item(dict, "BasebandData", plist_new_data(buffer, (uint64_t)sz));
+ free(buffer);
+ buffer = NULL;
+
+ if (restored_send(restore, dict) != RESTORE_E_SUCCESS) {
+ error("ERROR: Unable to send BasebandData data\n");
+ goto leave;
+ }
+
+ plist_free(dict);
+ dict = NULL;
+
+ res = 0;
+
+leave:
+ if (dict) {
+ plist_free(dict);
+ }
+ if (fls) {
+ fls_free(fls);
+ }
+ if (zfile) {
+ zip_fclose(zfile);
+ }
+ if (zs) {
+ zip_source_free(zs);
+ }
+ if (za) {
+ zip_unchange_all(za);
+ zip_close(za);
+ }
+ if (buffer) {
+ free(buffer);
+ }
+ if (blob) {
+ free(blob);
+ }
+ if (bbfwtmp) {
+ remove(bbfwtmp);
+ free(bbfwtmp);
+ }
+ if (response) {
+ free(response);
+ }
+
+ return res;
+}
+
int restore_handle_data_request_msg(struct idevicerestore_client_t* client, idevice_t device, restored_client_t restore, plist_t message, plist_t build_identity, const char* filesystem) {
char* type = NULL;
plist_t node = NULL;
@@ -781,6 +1298,13 @@ int restore_handle_data_request_msg(struct idevicerestore_client_t* client, idev
info("Not sending NORData... Quitting...\n");
client->flags |= FLAG_QUIT;
}
+ }
+
+ else if (!strcmp(type, "BasebandData")) {
+ if(restore_send_baseband_data(restore, client, build_identity, message) < 0) {
+ error("ERROR: Unable to send baseband data\n");
+ return -1;
+ }
} else {
// Unknown DataType!!
@@ -929,6 +1453,11 @@ int restore_device(struct idevicerestore_client_t* client, plist_t build_identit
}
}
+ // baseband update message
+ else if (!strcmp(type, "BBUpdateStatusMsg")) {
+ error = restore_handle_bb_update_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 {
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