int ipsw_get_component_by_path(const char* ipsw, plist_t tss, const char* path, char** data, uint32_t* size) {
img3_file* img3 = NULL;
uint32_t component_size = 0;
char* component_data = NULL;
char* component_blob = NULL;
char* component_name = NULL;
component_name = strrchr(path, '/');
if (component_name != NULL)
component_name++;
else
component_name = (char*) path;
info("Extracting %s\n", component_name);
if (ipsw_extract_to_memory(ipsw, path, &component_data, &component_size) < 0) {
error("ERROR: Unable to extract %s from %s\n", component_name, ipsw);
return -1;
}
if (tss) {
img3 = img3_parse_file(component_data, component_size);
if (img3 == NULL) {
error("ERROR: Unable to parse IMG3: %s\n", component_name);
free(component_data);
return -1;
}
free(component_data);
/* sign the blob if required */
if (tss_get_blob_by_path(tss, path, &component_blob) < 0) {
error("ERROR: Unable to get SHSH blob for TSS %s entry\n", component_name);
img3_free(img3);
return -1;
}
info("Signing %s\n", component_name);
if (img3_replace_signature(img3, component_blob) < 0) {
error("ERROR: Unable to replace IMG3 signature\n");
free(component_blob);
img3_free(img3);
return -1;
}
if (component_blob)
free(component_blob);
if (img3_get_data(img3, &component_data, &component_size) < 0) {
error("ERROR: Unable to reconstruct IMG3\n");
img3_free(img3);
return -1;
}
img3_free(img3);
}
if (idevicerestore_debug) {
write_file(component_name, component_data, component_size);
}
*data = component_data;
*size = component_size;
return 0;
}
int ipsw_get_component_by_path(const char* ipsw, plist_t tss, const char* component, const char* path, unsigned char** data, unsigned int* size) {
img3_file* img3 = NULL;
unsigned int component_size = 0;
unsigned char* component_data = NULL;
unsigned char* component_blob = NULL;
char* component_name = NULL;
component_name = strrchr(path, '/');
if (component_name != NULL)
component_name++;
else
component_name = (char*) path;
info("Extracting %s...\n", component_name);
if (ipsw_extract_to_memory(ipsw, path, &component_data, &component_size) < 0) {
error("ERROR: Unable to extract %s from %s\n", component_name, ipsw);
return -1;
}
if (tss) {
/* try to get blob for current component from tss response */
if (component) {
if (tss_get_blob_by_name(tss, component, &component_blob) < 0) {
debug("NOTE: No SHSH blob found for TSS entry %s from component %s\n", component_name, component);
}
} else {
if (tss_get_blob_by_path(tss, path, &component_blob) < 0) {
debug("NOTE: No SHSH blob found for TSS entry %s from path %s\n", component_name, path);
}
}
if (component_blob != NULL) {
/* parse current component as img3 */
img3 = img3_parse_file(component_data, component_size);
if (img3 == NULL) {
error("ERROR: Unable to parse IMG3: %s\n", component_name);
free(component_blob);
free(component_data);
return -1;
}
/* we no longer require the original data */
free(component_data);
info("Personalizing component %s...\n", component_name);
/* personalize the component using the blob */
if (img3_replace_signature(img3, component_blob) < 0) {
error("ERROR: Unable to replace IMG3 signature\n");
free(component_blob);
img3_free(img3);
return -1;
}
/* get the img3 file as data */
if (img3_get_data(img3, &component_data, &component_size) < 0) {
error("ERROR: Unable to reconstruct IMG3\n");
free(component_blob);
img3_free(img3);
return -1;
}
/* cleanup */
img3_free(img3);
} else {
info("Not personalizing component %s...\n", component_name);
}
if (component_blob)
free(component_blob);
}
if (idevicerestore_debug) {
write_file(component_name, component_data, component_size);
}
*data = component_data;
*size = component_size;
return 0;
}