Porting a C++ Program to Rust: Of std::reinterpret_cast, Structs and Bluetooth

I have a C++ program that statically links against libbluetooth/BlueZ, and I would like to port it to Rust as an exercise.

One particularly ugly bit of the C++ code reads data from a UNIX file descriptor via read(), and the resulting buffer is then cast to a struct via std::reinterpret_cast. Unfortunately, I have no idea how to achieve a similar thing in Rust. The idea is to capture instances of le_advertising_info from libbluetooth.

C++11 Code:

std::uint8_t buf [HCI_MAX_EVENT_SIZE];
evt_le_meta_event* evt;
le_advertising_info* info;

if (read(_deviceFD, buf, sizeof (buf)) >= HCI_EVENT_HDR_SIZE) {
    evt = reinterpret_cast<evt_le_meta_event*>(buf + HCI_EVENT_HDR_SIZE + 1);
    if (evt != nullptr && evt->subevent == EVT_LE_ADVERTISING_REPORT) {
        void* offset = evt->data + 1;
        for (auto i = 0; i < evt->data [0]; i++) {
            info = std::reinterpret_cast<le_advertising_info*>(offset);
            if (info != nullptr) {
                if (isBeacon(*info)) {
                    writeLogEntry(*info);
                }
                offset = info->data + info->length + 2;
            }
        }
    }
}

Some pointers on how to port this bit to Rust (in an elegant and safe fashion) are greatly appreciated.