| /* -*- c++ -*- */ |
| /* @file |
| * @author (C) 2017 by Piotr Krysik <ptrkrysik@gmail.com> |
| * @section LICENSE |
| * |
| * Gr-gsm is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 3, or (at your option) |
| * any later version. |
| * |
| * Gr-gsm is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with gr-gsm; see the file COPYING. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <gnuradio/io_signature.h> |
| #include "burst_type_filter_impl.h" |
| #include <stdio.h> |
| #include <grgsm/endian.h> |
| #include <grgsm/gsmtap.h> |
| |
| |
| namespace gr { |
| namespace gsm { |
| |
| burst_type_filter::sptr |
| burst_type_filter::make(const std::vector<uint8_t> & selected_burst_types) |
| { |
| return gnuradio::get_initial_sptr |
| (new burst_type_filter_impl(selected_burst_types)); |
| } |
| |
| /* |
| * The private constructor |
| */ |
| burst_type_filter_impl::burst_type_filter_impl(const std::vector<uint8_t> & selected_burst_types) |
| : gr::block("burst_type_filter", |
| gr::io_signature::make(0, 0, 0), |
| gr::io_signature::make(0, 0, 0)), |
| d_filter_policy(FILTER_POLICY_DEFAULT) |
| { |
| set_selected_burst_types(selected_burst_types); |
| |
| message_port_register_in(pmt::mp("bursts_in")); |
| message_port_register_out(pmt::mp("bursts_out")); |
| |
| set_msg_handler(pmt::mp("bursts_in"), boost::bind(&burst_type_filter_impl::process_burst, this, _1)); |
| } |
| |
| /* |
| * Our virtual destructor. |
| */ |
| burst_type_filter_impl::~burst_type_filter_impl() {} |
| |
| void burst_type_filter_impl::process_burst(pmt::pmt_t msg) |
| { |
| if (d_filter_policy == FILTER_POLICY_DROP_ALL) |
| return; |
| |
| if (d_filter_policy == FILTER_POLICY_PASS_ALL) { |
| message_port_pub(pmt::mp("bursts_out"), msg); |
| return; |
| } |
| |
| gsmtap_hdr * header = (gsmtap_hdr *)pmt::blob_data(pmt::cdr(msg)); |
| if (std::find(d_selected_burst_types.begin(), d_selected_burst_types.end(), header->sub_type) != d_selected_burst_types.end()) //check if burst type is listed in burst types to pass |
| { |
| message_port_pub(pmt::mp("bursts_out"), msg); |
| } |
| } |
| |
| /* Filtering policy */ |
| filter_policy |
| burst_type_filter_impl::get_policy(void) |
| { |
| return d_filter_policy; |
| } |
| |
| filter_policy |
| burst_type_filter_impl::set_policy(filter_policy policy) |
| { |
| d_filter_policy = policy; |
| return d_filter_policy; |
| } |
| |
| void |
| burst_type_filter_impl::set_selected_burst_types(const std::vector<uint8_t> & selected_burst_types) |
| { |
| d_selected_burst_types.assign(selected_burst_types.begin(), selected_burst_types.end()); |
| } |
| } /* namespace gsm */ |
| } /* namespace gr */ |