static bool find_paths(struct paths *paths)
{
std::unordered_map<std::string, std::string> props;
util::file_get_all_properties(DEFAULT_PROP_PATH, &props);
std::string userdata;
std::string header;
std::string recovery;
std::vector<unsigned char> contents;
util::file_read_all(DEVICE_JSON_PATH, &contents);
contents.push_back('\0');
MbDeviceJsonError error;
Device *device = mb_device_new_from_json((char *) contents.data(), &error);
if (!device) {
LOGE("%s: Failed to load device definition", DEVICE_JSON_PATH);
return false;
} else if (mb_device_validate(device) != 0) {
LOGE("%s: Device definition validation failed", DEVICE_JSON_PATH);
mb_device_free(device);
return false;
}
auto userdata_list = mb_device_data_block_devs(device);
auto recovery_list = mb_device_recovery_block_devs(device);
if (userdata_list) {
for (auto it = userdata_list; *it; ++it) {
if (access(*it, R_OK) == 0) {
userdata = *it;
break;
}
}
}
if (recovery_list) {
for (auto it = recovery_list; *it; ++it) {
if (access(*it, R_OK) == 0) {
recovery = *it;
break;
}
}
}
mb_device_free(device);
header = props[PROP_CRYPTFS_HEADER_PATH];
if (userdata.empty()) {
LOGE("Encrypted partition path could not be detected");
return false;
}
if (recovery.empty()) {
LOGE("Recovery partition path could not be detected");
return false;
}
if (header.empty()) {
LOGE("Cryptfs header path could not be detected");
return false;
}
paths->userdata.swap(userdata);
paths->recovery.swap(recovery);
paths->header.swap(header);
return true;
}
ScopedDevice(const char *json)
{
device = mb_device_new_from_json(json, &error);
}