Implemented system info collection block
diff --git a/lib/misc_utils/collect_system_info_impl.cc b/lib/misc_utils/collect_system_info_impl.cc
new file mode 100755
index 0000000..74ea170
--- /dev/null
+++ b/lib/misc_utils/collect_system_info_impl.cc
@@ -0,0 +1,185 @@
+/* -*- 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 "collect_system_info_impl.h"
+
+namespace gr {
+ namespace gsm {
+
+ void collect_system_info_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));
+
+ uint8_t chan_type = header->sub_type;
+
+ if (chan_type == GSMTAP_CHANNEL_BCCH && msg_elements[1] == 0x06)
+ {
+ int frame_nr = be32toh(header->frame_number);
+
+ if (msg_elements[2] == 0x19)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 1");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x1a)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 2");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x1b)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 3");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x1c)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 4");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x02)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 2bis");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x03)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 2ter");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x07)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 2quater");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[2] == 0x00)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 13");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ }
+ else if ((chan_type == GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH
+ || chan_type == GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH4
+ || chan_type == GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_SDCCH8
+ || chan_type == GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_TCH_F
+ || chan_type == GSMTAP_CHANNEL_ACCH|GSMTAP_CHANNEL_TCH_H)
+ && msg_elements[5] == 0x06)
+ {
+ int frame_nr = be32toh(header->frame_number);
+
+ if (msg_elements[6] == 0x1D)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 5");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[6] == 0x1E)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 6");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[6] == 0x05)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 5bis");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ else if (msg_elements[6] == 0x06)
+ {
+ d_framenumbers.push_back(frame_nr);
+ d_sit_types.push_back("System Information Type 5ter");
+ d_sit_data.push_back(get_hex_string(msg_elements));
+ }
+ }
+ }
+
+ std::vector<int> collect_system_info_impl::get_framenumbers()
+ {
+ return d_framenumbers;
+ }
+
+ std::vector<std::string> collect_system_info_impl::get_system_information_type()
+ {
+ return d_sit_types;
+ }
+
+ std::vector<std::string> collect_system_info_impl::get_data()
+ {
+ return d_sit_data;
+ }
+
+ std::string collect_system_info_impl::get_hex_string(uint8_t * msg_elements)
+ {
+ std::stringstream sstream;
+ for (int i=0; i<23; i++)
+ {
+ sstream << std::setfill ('0') << std::setw(2) << std::hex << static_cast<int>(msg_elements[i]);
+ }
+ return sstream.str();
+ }
+
+ collect_system_info::sptr
+ collect_system_info::make()
+ {
+ return gnuradio::get_initial_sptr
+ (new collect_system_info_impl());
+ }
+
+ /*
+ * The private constructor
+ */
+ collect_system_info_impl::collect_system_info_impl()
+ : gr::block("collect_system_info",
+ 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(&collect_system_info_impl::process_messages, this, _1));
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ collect_system_info_impl::~collect_system_info_impl()
+ {
+ }
+ } /* namespace gsm */
+} /* namespace gr */