Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 1 | /* -*- c++ -*- */ |
| 2 | /* @file |
| 3 | * @author (C) 2017 by Piotr Krysik <ptrkrysik@gmail.com> |
| 4 | * @section LICENSE |
| 5 | * |
| 6 | * Gr-gsm is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 3, or (at your option) |
| 9 | * any later version. |
| 10 | * |
| 11 | * Gr-gsm is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with gr-gsm; see the file COPYING. If not, write to |
| 18 | * the Free Software Foundation, Inc., 51 Franklin Street, |
| 19 | * Boston, MA 02110-1301, USA. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_CONFIG_H |
| 24 | #include "config.h" |
| 25 | #endif |
| 26 | |
| 27 | #include <gnuradio/io_signature.h> |
| 28 | #include "burst_type_filter_impl.h" |
| 29 | #include <stdio.h> |
| 30 | #include <grgsm/endian.h> |
| 31 | #include <grgsm/gsmtap.h> |
| 32 | |
| 33 | |
| 34 | namespace gr { |
| 35 | namespace gsm { |
| 36 | |
| 37 | burst_type_filter::sptr |
| 38 | burst_type_filter::make(const std::vector<uint8_t> & selected_burst_types) |
| 39 | { |
| 40 | return gnuradio::get_initial_sptr |
| 41 | (new burst_type_filter_impl(selected_burst_types)); |
| 42 | } |
| 43 | |
| 44 | /* |
| 45 | * The private constructor |
| 46 | */ |
| 47 | burst_type_filter_impl::burst_type_filter_impl(const std::vector<uint8_t> & selected_burst_types) |
| 48 | : gr::block("burst_type_filter", |
| 49 | gr::io_signature::make(0, 0, 0), |
| 50 | gr::io_signature::make(0, 0, 0)), |
| 51 | d_filter_policy(FILTER_POLICY_DEFAULT) |
| 52 | { |
| 53 | set_selected_burst_types(selected_burst_types); |
| 54 | |
Piotr Krysik | f849faf | 2017-11-11 11:14:26 +0100 | [diff] [blame] | 55 | message_port_register_in(pmt::mp("bursts_in")); |
| 56 | message_port_register_out(pmt::mp("bursts_out")); |
Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 57 | |
Piotr Krysik | f849faf | 2017-11-11 11:14:26 +0100 | [diff] [blame] | 58 | set_msg_handler(pmt::mp("bursts_in"), boost::bind(&burst_type_filter_impl::process_burst, this, _1)); |
Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 59 | } |
| 60 | |
| 61 | /* |
| 62 | * Our virtual destructor. |
| 63 | */ |
| 64 | burst_type_filter_impl::~burst_type_filter_impl() {} |
| 65 | |
| 66 | void burst_type_filter_impl::process_burst(pmt::pmt_t msg) |
| 67 | { |
| 68 | if (d_filter_policy == FILTER_POLICY_DROP_ALL) |
| 69 | return; |
| 70 | |
| 71 | if (d_filter_policy == FILTER_POLICY_PASS_ALL) { |
Piotr Krysik | f849faf | 2017-11-11 11:14:26 +0100 | [diff] [blame] | 72 | message_port_pub(pmt::mp("bursts_out"), msg); |
Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 73 | return; |
| 74 | } |
| 75 | |
| 76 | gsmtap_hdr * header = (gsmtap_hdr *)pmt::blob_data(pmt::cdr(msg)); |
Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 77 | 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 |
| 78 | { |
Piotr Krysik | f849faf | 2017-11-11 11:14:26 +0100 | [diff] [blame] | 79 | message_port_pub(pmt::mp("bursts_out"), msg); |
Piotr Krysik | acc365f | 2017-11-07 19:31:42 +0100 | [diff] [blame] | 80 | } |
| 81 | } |
| 82 | |
| 83 | /* Filtering policy */ |
| 84 | filter_policy |
| 85 | burst_type_filter_impl::get_policy(void) |
| 86 | { |
| 87 | return d_filter_policy; |
| 88 | } |
| 89 | |
| 90 | filter_policy |
| 91 | burst_type_filter_impl::set_policy(filter_policy policy) |
| 92 | { |
| 93 | d_filter_policy = policy; |
| 94 | return d_filter_policy; |
| 95 | } |
| 96 | |
| 97 | void |
| 98 | burst_type_filter_impl::set_selected_burst_types(const std::vector<uint8_t> & selected_burst_types) |
| 99 | { |
| 100 | d_selected_burst_types.assign(selected_burst_types.begin(), selected_burst_types.end()); |
| 101 | } |
| 102 | } /* namespace gsm */ |
| 103 | } /* namespace gr */ |