diff options
author | Piotr Krysik <ptrkrysik@users.noreply.github.com> | 2016-12-29 13:12:16 +0100 |
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committer | GitHub <noreply@github.com> | 2016-12-29 13:12:16 +0100 |
commit | 01f9c1975e5999a51980e502bfd2c9e90bc33c68 (patch) | |
tree | 8eb49e9aeff688f53ecfd93225ce8cc0acfff5ed /lib | |
parent | f7653ecb8b5457b83f10e7b8a69a086b8df5304a (diff) | |
parent | e5ddab3e1d81059f8ace8fddcd4482e089ce56ef (diff) |
Merge pull request #241 from romankh/cmc-extractor
Merging CMC extraction block written by @romankh
Diffstat (limited to 'lib')
-rw-r--r-- | lib/CMakeLists.txt | 1 | ||||
-rwxr-xr-x | lib/misc_utils/extract_cmc_impl.cc | 90 | ||||
-rwxr-xr-x | lib/misc_utils/extract_cmc_impl.h | 45 |
3 files changed, 136 insertions, 0 deletions
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt index 660bbfd..a0913d9 100644 --- a/lib/CMakeLists.txt +++ b/lib/CMakeLists.txt @@ -62,6 +62,7 @@ list(APPEND grgsm_sources misc_utils/bursts_printer_impl.cc misc_utils/extract_system_info_impl.cc misc_utils/extract_immediate_assignment_impl.cc + misc_utils/extract_cmc_impl.cc qa_utils/burst_sink_impl.cc qa_utils/burst_source_impl.cc qa_utils/message_source_impl.cc diff --git a/lib/misc_utils/extract_cmc_impl.cc b/lib/misc_utils/extract_cmc_impl.cc new file mode 100755 index 0000000..b367def --- /dev/null +++ b/lib/misc_utils/extract_cmc_impl.cc @@ -0,0 +1,90 @@ +/* -*- c++ -*- */ +/* + * @file + * @author Roman Khassraf <rkhassraf@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 <grgsm/gsmtap.h> +#include <unistd.h> +#include <grgsm/endian.h> + +#include "extract_cmc_impl.h" + +namespace gr { + namespace gsm { + void extract_cmc_impl::process_messages(pmt::pmt_t msg) + { + pmt::pmt_t message_plus_header_blob = pmt::cdr(msg); + uint8_t * message_plus_header = (uint8_t *)pmt::blob_data(message_plus_header_blob); + gsmtap_hdr * header = (gsmtap_hdr *)message_plus_header; + uint8_t * msg_elements = (uint8_t *)(message_plus_header+sizeof(gsmtap_hdr)); + + if((msg_elements[3] & 0xF) == 0x6 && msg_elements[4] == 0x35) + { + + int frame_nr = be32toh(header->frame_number); + int a5_version = ((msg_elements[5] & 0xE) >> 1) + 1; + + d_framenumbers.push_back(frame_nr); + d_a5_versions.push_back(a5_version); + } + } + + std::vector<int> extract_cmc_impl::get_framenumbers() + { + return d_framenumbers; + } + + std::vector<int> extract_cmc_impl::get_a5_versions() + { + return d_a5_versions; + } + + extract_cmc::sptr + extract_cmc::make() + { + return gnuradio::get_initial_sptr + (new extract_cmc_impl()); + } + + /* + * The private constructor + */ + extract_cmc_impl::extract_cmc_impl() + : gr::block("extract_cmc", + gr::io_signature::make(0, 0, 0), + gr::io_signature::make(0, 0, 0)) + { + message_port_register_in(pmt::mp("msgs")); + set_msg_handler(pmt::mp("msgs"), boost::bind(&extract_cmc_impl::process_messages, this, _1)); + } + + /* + * Our virtual destructor. + */ + extract_cmc_impl::~extract_cmc_impl() + { + } + } /* namespace gsm */ +} /* namespace gr */ diff --git a/lib/misc_utils/extract_cmc_impl.h b/lib/misc_utils/extract_cmc_impl.h new file mode 100755 index 0000000..fe97f22 --- /dev/null +++ b/lib/misc_utils/extract_cmc_impl.h @@ -0,0 +1,45 @@ +/* -*- c++ -*- */ +/* + * @file + * @author Roman Khassraf <rkhassraf@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. + */ + +#ifndef INCLUDED_GSM_EXTRACT_CMC_IMPL_H +#define INCLUDED_GSM_EXTRACT_CMC_IMPL_H + +#include <grgsm/misc_utils/extract_cmc.h> +#include <vector> + +namespace gr { + namespace gsm { + class extract_cmc_impl : public extract_cmc + { + private: + void process_messages(pmt::pmt_t msg); + std::vector<int> d_framenumbers; + std::vector<int> d_a5_versions; + public: + virtual std::vector<int> get_framenumbers(); + virtual std::vector<int> get_a5_versions(); + extract_cmc_impl(); + ~extract_cmc_impl(); + }; + } // namespace gsm +} // namespace gr +#endif /* INCLUDED_GSM_EXTRACT_CMC_IMPL_H */ |