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-rw-r--r--src/Makefile.am2
-rw-r--r--src/idevicerestore.c235
2 files changed, 235 insertions, 2 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index a6c653f..c9f1313 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,6 +3,7 @@ AM_CFLAGS = \
$(libimobiledevice_CFLAGS) \
$(libplist_CFLAGS) \
$(libzip_CFLAGS) \
+ $(openssl_CFLAGS) \
$(libcurl_CFLAGS)
AM_LDFLAGS =\
@@ -10,6 +11,7 @@ AM_LDFLAGS =\
$(libimobiledevice_LIBS) \
$(libplist_LIBS) \
$(libzip_LIBS) \
+ $(openssl_LIBS) \
$(libcurl_LIBS)
AM_LDADD = $(AC_LDADD)
diff --git a/src/idevicerestore.c b/src/idevicerestore.c
index 8fc3938..36822a9 100644
--- a/src/idevicerestore.c
+++ b/src/idevicerestore.c
@@ -26,6 +26,7 @@
#include <getopt.h>
#include <plist/plist.h>
#include <zlib.h>
+#include <openssl/sha.h>
#include "dfu.h"
#include "tss.h"
@@ -51,6 +52,7 @@ static struct option longopts[] = {
{ "help", no_argument, NULL, 'h' },
{ "erase", no_argument, NULL, 'e' },
{ "custom", no_argument, NULL, 'c' },
+ { "latest", no_argument, NULL, 'l' },
{ "cydia", no_argument, NULL, 's' },
{ "exclude", no_argument, NULL, 'x' },
{ "shsh", no_argument, NULL, 't' },
@@ -70,6 +72,10 @@ void usage(int argc, char* argv[]) {
printf(" -h|--help prints usage information\n");
printf(" -e|--erase perform a full restore, erasing all data\n");
printf(" -c|--custom restore with a custom firmware\n");
+ printf(" -l|--latest use latest available firmware (with download on demand)\n");
+ printf(" DO NOT USE if you need to preserve the baseband (unlock)!\n");
+ printf(" USE WITH CARE if you want to keep a jailbreakable firmware!\n");
+ printf(" The FILE argument is ignored when using this option.\n");
printf(" -s|--cydia use Cydia's signature service instead of Apple's\n");
printf(" -x|--exclude exclude nor/baseband upgrade\n");
printf(" -t|--shsh fetch TSS record and save to .shsh file, then exit\n");
@@ -130,6 +136,149 @@ static int load_version_data(struct idevicerestore_client_t* client)
return 0;
}
+int get_latest_fw(struct idevicerestore_client_t* client, char** fwurl, unsigned char* sha1buf)
+{
+ *fwurl = NULL;
+ memset(sha1buf, '\0', 20);
+
+ plist_t n1 = plist_access_path(client->version_data, 2, "MobileDeviceMajorVersionsByProductType", client->device->product);
+ if (!n1 || (plist_dict_get_size(n1) == 0)) {
+ error("%s: ERROR: Can't find MobileDeviceMajorVersionsByProductType/%s dict in version data\n", __func__, client->device->product);
+ return -1;
+ }
+
+ char* strval = NULL;
+ plist_t n2 = plist_dict_get_item(n1, "SameAs");
+ if (n2) {
+ plist_get_string_val(n2, &strval);
+ }
+ if (strval) {
+ n1 = plist_access_path(client->version_data, 2, "MobileDeviceMajorVersionsByProductType", strval);
+ free(strval);
+ strval = NULL;
+ if (!n1 || (plist_dict_get_size(n1) == 0)) {
+ error("%s: ERROR: Can't find MobileDeviceMajorVersionsByProductType/%s dict in version data\n", __func__, client->device->product);
+ return -1;
+ }
+ }
+
+ plist_dict_iter iter = NULL;
+ plist_dict_new_iter(n1, &iter);
+ if (!iter) {
+ error("%s: ERROR: Can't get dict iter\n", __func__);
+ return -1;
+ }
+ n2 = NULL;
+ char* key = NULL;
+ plist_t val = NULL;
+ do {
+ plist_dict_next_item(n1, iter, &key, &val);
+ if (key) {
+ n2 = val;
+ free(key);
+ }
+ } while (val);
+ free(iter);
+
+ if (!n2) {
+ error("%s: ERROR: Can't get last node?!\n", __func__);
+ return -1;
+ }
+
+ uint64_t major = 0;
+ if (plist_get_node_type(n2) == PLIST_ARRAY) {
+ uint32_t sz = plist_array_get_size(n2);
+ plist_t n3 = plist_array_get_item(n2, sz-1);
+ plist_get_uint_val(n3, &major);
+ } else {
+ plist_get_uint_val(n2, &major);
+ }
+
+ if (major == 0) {
+ error("%s: ERROR: Can't find major version?!\n", __func__);
+ return -1;
+ }
+
+ char majstr[32]; // should be enough for a uint64_t value
+ sprintf(majstr, FMT_qu, (long long unsigned int)major);
+ n1 = plist_access_path(client->version_data, 7, "MobileDeviceSoftwareVersionsByVersion", majstr, "MobileDeviceSoftwareVersions", client->device->product, "Unknown", "Universal", "Restore");
+ if (!n1) {
+ error("%s: ERROR: Can't get Unknown/Universal/Restore node?!\n", __func__);
+ return -1;
+ }
+
+ n2 = plist_dict_get_item(n1, "BuildVersion");
+ if (!n2 || (plist_get_node_type(n2) != PLIST_STRING)) {
+ error("%s: ERROR: Can't get build version node?!\n", __func__);
+ return -1;
+ }
+
+ strval = NULL;
+ plist_get_string_val(n2, &strval);
+
+ n1 = plist_access_path(client->version_data, 5, "MobileDeviceSoftwareVersionsByVersion", majstr, "MobileDeviceSoftwareVersions", client->device->product, strval);
+ if (!n1) {
+ error("%s: ERROR: Can't get MobileDeviceSoftwareVersions/%s node?!\n", __func__, strval);
+ free(strval);
+ return -1;
+ }
+ free(strval);
+
+ strval = NULL;
+ n2 = plist_dict_get_item(n1, "SameAs");
+ if (n2) {
+ plist_get_string_val(n2, &strval);
+ }
+ if (strval) {
+ n1 = plist_access_path(client->version_data, 5, "MobileDeviceSoftwareVersionsByVersion", majstr, "MobileDeviceSoftwareVersions", client->device->product, strval);
+ free(strval);
+ strval = NULL;
+ if (!n1 || (plist_dict_get_size(n1) == 0)) {
+ error("%s: ERROR: Can't get MobileDeviceSoftwareVersions/%s dict\n", __func__, client->device->product);
+ return -1;
+ }
+ }
+
+ n2 = plist_access_path(n1, 2, "Update", "BuildVersion");
+ if (n2) {
+ strval = NULL;
+ plist_get_string_val(n2, &strval);
+ if (strval) {
+ n1 = plist_access_path(client->version_data, 5, "MobileDeviceSoftwareVersionsByVersion", majstr, "MobileDeviceSoftwareVersions", client->device->product, strval);
+ free(strval);
+ strval = NULL;
+ }
+ }
+
+ n2 = plist_access_path(n1, 2, "Restore", "FirmwareURL");
+ if (!n2 || (plist_get_node_type(n2) != PLIST_STRING)) {
+ error("%s: ERROR: Can't get FirmwareURL node\n", __func__);
+ return -1;
+ }
+
+ plist_get_string_val(n2, fwurl);
+
+ n2 = plist_access_path(n1, 2, "Restore", "FirmwareSHA1");
+ if (n2 && plist_get_node_type(n2) == PLIST_STRING) {
+ strval = NULL;
+ plist_get_string_val(n2, &strval);
+ if (strval) {
+ if (strlen(strval) == 40) {
+ int i;
+ int v;
+ for (i = 0; i < 40; i+=2) {
+ v = 0;
+ sscanf(strval+i, "%02x", &v);
+ sha1buf[i/2] = (unsigned char)v;
+ }
+ }
+ free(strval);
+ }
+ }
+
+ return 0;
+}
+
int main(int argc, char* argv[]) {
int opt = 0;
int optindex = 0;
@@ -137,6 +286,7 @@ int main(int argc, char* argv[]) {
char* udid = NULL;
int tss_enabled = 0;
int shsh_only = 0;
+ int latest = 0;
char* shsh_dir = NULL;
use_apple_server=1;
@@ -148,7 +298,7 @@ int main(int argc, char* argv[]) {
}
memset(client, '\0', sizeof(struct idevicerestore_client_t));
- while ((opt = getopt_long(argc, argv, "dhcesxtpi:u:", longopts, &optindex)) > 0) {
+ while ((opt = getopt_long(argc, argv, "dhcesxtpli:u:", longopts, &optindex)) > 0) {
switch (opt) {
case 'h':
usage(argc, argv);
@@ -175,6 +325,10 @@ int main(int argc, char* argv[]) {
client->flags |= FLAG_EXCLUDE;
break;
+ case 'l':
+ latest = 1;
+ break;
+
case 'i':
if (optarg) {
char* tail = NULL;
@@ -207,7 +361,7 @@ int main(int argc, char* argv[]) {
}
}
- if (((argc-optind) == 1) || (client->flags & FLAG_PWN)) {
+ if (((argc-optind) == 1) || (client->flags & FLAG_PWN) || (latest)) {
argc -= optind;
argv += optind;
@@ -217,6 +371,13 @@ int main(int argc, char* argv[]) {
return -1;
}
+ if (latest) {
+ if (client->flags & FLAG_CUSTOM) {
+ error("ERROR: You can't use --custom and --latest options at the same time.\n");
+ return -1;
+ }
+ }
+
if (client->flags & FLAG_DEBUG) {
idevice_set_debug_level(1);
irecv_set_debug_level(1);
@@ -325,6 +486,76 @@ int main(int argc, char* argv[]) {
return 0;
}
+ if (latest) {
+ char* fwurl = NULL;
+ unsigned char isha1[20];
+ if ((get_latest_fw(client, &fwurl, isha1) < 0) || !fwurl) {
+ error("ERROR: can't get URL for latest firmware\n");
+ return -1;
+ }
+ char* fwfn = strrchr(fwurl, '/');
+ if (!fwfn) {
+ error("ERROR: can't get local filename for firmware ipsw\n");
+ return -1;
+ }
+ fwfn++;
+
+ char fwlfn[256];
+ sprintf(fwlfn, "cache/%s", fwfn);
+
+ int need_dl = 0;
+ FILE* f = fopen(fwlfn, "rb");
+ if (f) {
+ unsigned char zsha1[20] = {0, };
+ if (memcmp(zsha1, isha1, 20) != 0) {
+ unsigned char tsha1[20];
+ char buf[8192];
+ SHA_CTX sha1ctx;
+ info("Verifying '%s'...\n", fwlfn);
+ SHA1_Init(&sha1ctx);
+ while (!feof(f)) {
+ size_t sz = fread(buf, 1, 8192, f);
+ SHA1_Update(&sha1ctx, (const void*)buf, sz);
+ }
+ SHA1_Final(tsha1, &sha1ctx);
+ if (memcmp(isha1, tsha1, 20) == 0) {
+ info("Checksum matches.\n");
+ } else {
+ info("Checksum does not match.\n");
+ need_dl = 1;
+ }
+ }
+ fclose(f);
+ } else {
+ need_dl = 1;
+ }
+
+ int res = 0;
+ if (need_dl) {
+ if (strncmp(fwurl, "protected:", 10) == 0) {
+ error("ERROR: Can't download '%s' because it needs a purchase.\n", fwfn);
+ res = -1;
+ } else {
+ if (remove(fwlfn) == 0) {
+ info("Downloading latest firmware (%s)\n", fwurl);
+ download_to_file(fwurl, fwlfn);
+ } else {
+ error("ERROR: Can't remove '%s'\n", fwlfn);
+ res = -1;
+ }
+ }
+ }
+
+ if (res != 0) {
+ free(fwurl);
+ return res;
+ } else {
+ ipsw = strdup(fwlfn);
+ client->ipsw = ipsw;
+ free(fwurl);
+ }
+ }
+
if (client->mode->index == MODE_RESTORE) {
if (restore_reboot(client) < 0) {
error("ERROR: Unable to exit restore mode\n");
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