diff --git a/grc/CMakeLists.txt b/grc/CMakeLists.txt
index e76e60c..ee380e8 100644
--- a/grc/CMakeLists.txt
+++ b/grc/CMakeLists.txt
@@ -34,5 +34,6 @@ install(FILES
satnogs_doppler_correction_cc.xml
satnogs_upsat_fsk_frame_acquisition.xml
satnogs_upsat_fsk_frame_encoder.xml
- satnogs_whitening.xml DESTINATION share/gnuradio/grc/blocks
+ satnogs_whitening.xml
+ satnogs_udp_msg_sink.xml DESTINATION share/gnuradio/grc/blocks
)
diff --git a/grc/satnogs_udp_msg_sink.xml b/grc/satnogs_udp_msg_sink.xml
new file mode 100644
index 0000000..f8b4a1a
--- /dev/null
+++ b/grc/satnogs_udp_msg_sink.xml
@@ -0,0 +1,33 @@
+
+
+ UDP Message Sink
+ satnogs_udp_msg_sink
+ satnogs
+ import satnogs
+ satnogs.udp_msg_sink($addr, $port, $mtu)
+
+ IP Address
+ addr
+ "127.0.0.1"
+ string
+
+
+
+ UDP port
+ port
+ 16886
+ int
+
+
+
+ MTU
+ mtu
+ 1500
+ int
+
+
+
+ in
+ message
+
+
diff --git a/include/satnogs/CMakeLists.txt b/include/satnogs/CMakeLists.txt
index 802df56..f0243a2 100644
--- a/include/satnogs/CMakeLists.txt
+++ b/include/satnogs/CMakeLists.txt
@@ -47,5 +47,6 @@ install(FILES
freq_drift.h
upsat_fsk_frame_acquisition.h
upsat_fsk_frame_encoder.h
- whitening.h DESTINATION include/satnogs
+ whitening.h
+ udp_msg_sink.h DESTINATION include/satnogs
)
diff --git a/include/satnogs/udp_msg_sink.h b/include/satnogs/udp_msg_sink.h
new file mode 100644
index 0000000..30d61ae
--- /dev/null
+++ b/include/satnogs/udp_msg_sink.h
@@ -0,0 +1,54 @@
+/* -*- c++ -*- */
+/*
+ * gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
+ *
+ * Copyright (C) 2016, Libre Space Foundation
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see .
+ */
+
+#ifndef INCLUDED_SATNOGS_UDP_MSG_SINK_H
+#define INCLUDED_SATNOGS_UDP_MSG_SINK_H
+
+#include
+#include
+
+namespace gr {
+ namespace satnogs {
+
+ /*!
+ * \brief <+description of block+>
+ * \ingroup satnogs
+ *
+ */
+ class SATNOGS_API udp_msg_sink : virtual public gr::block
+ {
+ public:
+ typedef boost::shared_ptr sptr;
+
+
+ /**
+ * UDP sink that accepts PMT messages
+ * @param addr the address of the destination host
+ * @param port the destination UDP port
+ * @param mtu the maximum MTU
+ */
+ static sptr make(const std::string& addr, uint16_t port, size_t mtu);
+ };
+
+ } // namespace satnogs
+} // namespace gr
+
+#endif /* INCLUDED_SATNOGS_UDP_MSG_SINK_H */
+
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 870bf06..d47dedd 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -45,7 +45,8 @@ list(APPEND satnogs_sources
freq_drift.cc
upsat_fsk_frame_acquisition_impl.cc
upsat_fsk_frame_encoder_impl.cc
- whitening.cc )
+ whitening.cc
+ udp_msg_sink_impl.cc )
set(satnogs_sources "${satnogs_sources}" PARENT_SCOPE)
if(NOT satnogs_sources)
diff --git a/lib/udp_msg_sink_impl.cc b/lib/udp_msg_sink_impl.cc
new file mode 100644
index 0000000..d7f116a
--- /dev/null
+++ b/lib/udp_msg_sink_impl.cc
@@ -0,0 +1,94 @@
+/* -*- c++ -*- */
+/*
+ * gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
+ *
+ * Copyright (C) 2016, Libre Space Foundation
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see .
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include
+#include "udp_msg_sink_impl.h"
+#include
+
+namespace gr {
+ namespace satnogs {
+
+ udp_msg_sink::sptr
+ udp_msg_sink::make(const std::string& addr, uint16_t port, size_t mtu)
+ {
+ return gnuradio::get_initial_sptr
+ (new udp_msg_sink_impl(addr, port, mtu));
+ }
+
+ /*
+ * The private constructor
+ */
+ udp_msg_sink_impl::udp_msg_sink_impl (const std::string& addr,
+ uint16_t port, size_t mtu) :
+ gr::block ("udp_msg_sink",
+ gr::io_signature::make (0, 0, 0),
+ gr::io_signature::make (0, 0, 0)),
+ d_iface_addr(addr),
+ d_udp_port(port),
+ d_mtu(mtu)
+ {
+ message_port_register_in(pmt::mp("in"));
+ set_msg_handler(pmt::mp("in"),
+ boost::bind(&udp_msg_sink_impl::msg_handler,
+ this, _1));
+
+ /* Open the socket */
+ if ((d_sock = socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP)) == -1) {
+ perror ("opening UDP socket");
+ throw std::runtime_error("Could not open UDP socket");
+ }
+
+ memset (&d_sin, 0, sizeof(struct sockaddr_in));
+ d_sin.sin_family = AF_INET;
+ d_sin.sin_port = htons (d_udp_port);
+
+ if( inet_aton(d_iface_addr.c_str(), &(d_sin.sin_addr)) == 0){
+ LOG_ERROR("Wrong IP address");
+ close(d_sock);
+ throw std::runtime_error("Wrong IP address");
+ }
+ }
+
+ void
+ udp_msg_sink_impl::msg_handler (pmt::pmt_t msg)
+ {
+ const void *buf = pmt::blob_data(msg);
+ size_t len = pmt::blob_length(msg);
+
+ if(len < d_mtu){
+ sendto(d_sock, buf, len, 0, (sockaddr *) &d_sin, sizeof(sockaddr_in));
+ }
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ udp_msg_sink_impl::~udp_msg_sink_impl()
+ {
+ close(d_sock);
+ }
+
+ } /* namespace satnogs */
+} /* namespace gr */
+
diff --git a/lib/udp_msg_sink_impl.h b/lib/udp_msg_sink_impl.h
new file mode 100644
index 0000000..65e002d
--- /dev/null
+++ b/lib/udp_msg_sink_impl.h
@@ -0,0 +1,59 @@
+/* -*- c++ -*- */
+/*
+ * gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
+ *
+ * Copyright (C) 2016, Libre Space Foundation
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program. If not, see .
+ */
+
+#ifndef INCLUDED_SATNOGS_UDP_MSG_SINK_IMPL_H
+#define INCLUDED_SATNOGS_UDP_MSG_SINK_IMPL_H
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+namespace gr
+{
+ namespace satnogs
+ {
+
+ class udp_msg_sink_impl : public udp_msg_sink
+ {
+ private:
+ const std::string d_iface_addr;
+ const uint16_t d_udp_port;
+ const size_t d_mtu;
+ int d_sock;
+ struct sockaddr_in d_sin;
+
+ void msg_handler(pmt::pmt_t msg);
+
+ public:
+ udp_msg_sink_impl (const std::string& addr, uint16_t port, size_t mtu);
+ ~udp_msg_sink_impl ();
+ };
+
+ } // namespace satnogs
+} // namespace gr
+
+#endif /* INCLUDED_SATNOGS_UDP_MSG_SINK_IMPL_H */
+
diff --git a/swig/satnogs_swig.i b/swig/satnogs_swig.i
index 9e1f567..5e6ec2f 100644
--- a/swig/satnogs_swig.i
+++ b/swig/satnogs_swig.i
@@ -28,6 +28,7 @@
#include "satnogs/upsat_fsk_frame_acquisition.h"
#include "satnogs/upsat_fsk_frame_encoder.h"
#include "satnogs/whitening.h"
+#include "satnogs/udp_msg_sink.h"
%}
@@ -67,3 +68,5 @@ GR_SWIG_BLOCK_MAGIC2(satnogs, upsat_fsk_frame_acquisition);
%include "satnogs/upsat_fsk_frame_encoder.h"
GR_SWIG_BLOCK_MAGIC2(satnogs, upsat_fsk_frame_encoder);
%include "satnogs/whitening.h"
+%include "satnogs/udp_msg_sink.h"
+GR_SWIG_BLOCK_MAGIC2(satnogs, udp_msg_sink);