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-rw-r--r--host/lib/usrp/usrp2/usrp2_impl.cpp29
1 files changed, 24 insertions, 5 deletions
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
index 85d73e83a..67fbdf8d2 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
@@ -15,9 +15,12 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
+#include <uhd/transport/if_addrs.hpp>
+#include <uhd/utils/assert.hpp>
+#include <uhd/utils/static.hpp>
#include <boost/format.hpp>
+#include <boost/foreach.hpp>
#include <boost/bind.hpp>
-#include <uhd/utils.hpp>
#include <iostream>
#include "usrp2_impl.hpp"
@@ -27,16 +30,33 @@ using namespace uhd::transport;
namespace asio = boost::asio;
STATIC_BLOCK(register_usrp2_device){
- device::register_device(&usrp2::discover, &usrp2::make);
+ device::register_device(&usrp2::find, &usrp2::make);
}
/***********************************************************************
* Discovery over the udp transport
**********************************************************************/
-uhd::device_addrs_t usrp2::discover(const device_addr_t &hint){
+uhd::device_addrs_t usrp2::find(const device_addr_t &hint){
device_addrs_t usrp2_addrs;
- if (not hint.has_key("addr")) return usrp2_addrs;
+ //if no address was specified, send a broadcast on each interface
+ if (not hint.has_key("addr")){
+ BOOST_FOREACH(const if_addrs_t &if_addrs, get_if_addrs()){
+ //avoid the loopback device
+ if (if_addrs.inet == asio::ip::address_v4::loopback().to_string()) continue;
+
+ //create a new hint with this broadcast address
+ device_addr_t new_hint = hint;
+ new_hint["addr"] = if_addrs.bcast;
+
+ //call discover with the new hint and append results
+ device_addrs_t new_usrp2_addrs = usrp2::find(new_hint);
+ usrp2_addrs.insert(usrp2_addrs.begin(),
+ new_usrp2_addrs.begin(), new_usrp2_addrs.end()
+ );
+ }
+ return usrp2_addrs;
+ }
//create a udp transport to communicate
//TODO if an addr is not provided, search all interfaces?
@@ -63,7 +83,6 @@ uhd::device_addrs_t usrp2::discover(const device_addr_t &hint){
boost::asio::ip::address_v4 ip_addr(ntohl(ctrl_data_in.data.ip_addr));
device_addr_t new_addr;
new_addr["name"] = "USRP2";
- new_addr["transport"] = "udp";
new_addr["addr"] = ip_addr.to_string();
usrp2_addrs.push_back(new_addr);
//dont break here, it will exit the while loop