186 lines
6.6 KiB
C++
186 lines
6.6 KiB
C++
/* -*- c++ -*- */
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/*
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* @file
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* @author (C) 2017 by Roman Khassraf <rkhassraf@gmail.com>
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* @section LICENSE
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*
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* Gr-gsm is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* Gr-gsm is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gr-gsm; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include <grgsm/gsmtap.h>
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//#include <unistd.h>
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#include <grgsm/endian.h>
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#include "collect_system_info_impl.h"
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namespace gr {
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namespace gsm {
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void collect_system_info_impl::process_messages(pmt::pmt_t msg){
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pmt::pmt_t message_plus_header_blob = pmt::cdr(msg);
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uint8_t * message_plus_header = (uint8_t *)pmt::blob_data(message_plus_header_blob);
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gsmtap_hdr * header = (gsmtap_hdr *)message_plus_header;
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uint8_t * msg_elements = (uint8_t *)(message_plus_header+sizeof(gsmtap_hdr));
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uint8_t chan_type = header->sub_type;
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if (chan_type == GSMTAP_CHANNEL_BCCH && msg_elements[1] == 0x06)
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{
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int frame_nr = be32toh(header->frame_number);
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if (msg_elements[2] == 0x19)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 1");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x1a)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 2");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x1b)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 3");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x1c)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 4");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x02)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 2bis");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x03)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 2ter");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x07)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 2quater");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[2] == 0x00)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 13");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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}
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else if ((chan_type == (GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH)
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|| chan_type == (GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH4)
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|| chan_type == (GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH8)
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|| chan_type == (GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_TCH_F)
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|| chan_type == (GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_TCH_H))
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&& msg_elements[5] == 0x06)
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{
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int frame_nr = be32toh(header->frame_number);
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if (msg_elements[6] == 0x1D)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 5");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[6] == 0x1E)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 6");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[6] == 0x05)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 5bis");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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else if (msg_elements[6] == 0x06)
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{
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d_framenumbers.push_back(frame_nr);
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d_sit_types.push_back("System Information Type 5ter");
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d_sit_data.push_back(get_hex_string(msg_elements));
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}
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}
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}
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std::vector<int> collect_system_info_impl::get_framenumbers()
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{
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return d_framenumbers;
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}
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std::vector<std::string> collect_system_info_impl::get_system_information_type()
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{
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return d_sit_types;
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}
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std::vector<std::string> collect_system_info_impl::get_data()
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{
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return d_sit_data;
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}
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std::string collect_system_info_impl::get_hex_string(uint8_t * msg_elements)
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{
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std::stringstream sstream;
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for (int i=0; i<23; i++)
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{
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sstream << std::setfill ('0') << std::setw(2) << std::hex << static_cast<int>(msg_elements[i]);
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}
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return sstream.str();
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}
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collect_system_info::sptr
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collect_system_info::make()
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{
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return gnuradio::get_initial_sptr
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(new collect_system_info_impl());
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}
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/*
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* The private constructor
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*/
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collect_system_info_impl::collect_system_info_impl()
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: gr::block("collect_system_info",
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gr::io_signature::make(0, 0, 0),
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gr::io_signature::make(0, 0, 0))
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{
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message_port_register_in(pmt::mp("msgs"));
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set_msg_handler(pmt::mp("msgs"), boost::bind(&collect_system_info_impl::process_messages, this, boost::placeholders::_1));
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}
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/*
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* Our virtual destructor.
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*/
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collect_system_info_impl::~collect_system_info_impl()
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{
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}
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} /* namespace gsm */
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} /* namespace gr */
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