Michael Davidsaver
146 lines
3.7 KiB
C++
146 lines
3.7 KiB
C++
/**
|
|
* Copyright - See the COPYRIGHT that is included with this distribution.
|
|
* pvxs is distributed subject to a Software License Agreement found
|
|
* in file LICENSE that is included with this distribution.
|
|
*/
|
|
|
|
#define PVXS_ENABLE_EXPERT_API
|
|
|
|
#include <testMain.h>
|
|
#include <epicsUnitTest.h>
|
|
#include <pvxs/unittest.h>
|
|
|
|
#include <pvxs/log.h>
|
|
#include <pvxs/nt.h>
|
|
#include <pvxs/server.h>
|
|
#include <pvxs/sharedpv.h>
|
|
#include <pvxs/client.h>
|
|
#include "evhelper.h"
|
|
|
|
|
|
using namespace pvxs;
|
|
|
|
namespace {
|
|
|
|
bool testFwdVia(const server::Config& base, const SockAddr& ifaddr)
|
|
{
|
|
bool ok = true;
|
|
testDiag("In %s(%s)", __func__, ifaddr.tostring().c_str());
|
|
|
|
auto pv(server::SharedPV::buildMailbox());
|
|
pv.open(nt::NTScalar{TypeCode::UInt32}.create().update("value", 42u));
|
|
|
|
server::Server srv1, srv2, srv3;
|
|
{
|
|
auto sconf = base;
|
|
sconf.overrideShareUDP(false);
|
|
// unicast through one interface
|
|
sconf.tcp_port = sconf.udp_port = 0;
|
|
if(ifaddr.family()!=AF_UNSPEC)
|
|
sconf.interfaces.push_back(ifaddr.tostring());
|
|
sconf.auto_beacon = false;
|
|
|
|
srv1 = sconf.build();
|
|
|
|
sconf = srv1.config();
|
|
sconf.overrideShareUDP(false);
|
|
|
|
srv2 = sconf.build();
|
|
|
|
// bind to wildcard
|
|
sconf.interfaces.clear();
|
|
/* BSD and MS IP stacks allow two TCP sockets bound to the same port
|
|
* one to wildcard and one to an interface address. This leaves one
|
|
* of the two sometimes unreachable.
|
|
* Explicitly select random port as workaround.
|
|
*/
|
|
sconf.tcp_port = 0;
|
|
srv3 = sconf.build();
|
|
}
|
|
|
|
auto tcp1 = srv1.config().tcp_port;
|
|
auto tcp2 = srv2.config().tcp_port;
|
|
auto tcp3 = srv3.config().tcp_port;
|
|
if(tcp1==tcp2 || tcp1==tcp3 || tcp2==tcp3) {
|
|
testFail("Server bind() conflict %d, %d, %d", tcp1, tcp2, tcp3);
|
|
}
|
|
|
|
srv1.addPV("testpv1", pv);
|
|
srv2.addPV("testpv2", pv);
|
|
srv3.addPV("testpv3", pv);
|
|
|
|
srv1.start();
|
|
srv2.start();
|
|
srv3.start();
|
|
|
|
auto cli(srv1.clientConfig().build());
|
|
/* There are now 4x UDP sockets listening. Only one will receive unicast search.
|
|
* Which one is OS dependent. With Linux the last (cli), with Windows the first (srv1).
|
|
*/
|
|
|
|
const auto doGet = [&cli](const char* pvname) -> bool {
|
|
try {
|
|
auto result = cli.get(pvname).exec()->wait(5.0);
|
|
testDiag("Success %s %u", pvname, (unsigned)result["value"].as<uint32_t>());
|
|
return true;
|
|
} catch (client::Timeout&) {
|
|
testDiag("Timeout %s", pvname);
|
|
return false;
|
|
}
|
|
};
|
|
|
|
ok &= doGet("testpv1");
|
|
ok &= doGet("testpv2");
|
|
ok &= doGet("testpv3");
|
|
return ok;
|
|
}
|
|
|
|
void testFwdIface()
|
|
{
|
|
testDiag("In %s", __func__);
|
|
|
|
std::vector<SockAddr> ifaddrs;
|
|
{
|
|
auto& ifs(IfaceMap::instance());
|
|
|
|
epicsGuard<epicsMutex> G(ifs.lock);
|
|
|
|
for(auto it : ifs.byIndex) {
|
|
auto& iface = it.second;
|
|
if(iface.isLO)
|
|
continue;
|
|
|
|
for(auto it2 : iface.addrs) {
|
|
if(it2.first.family()!=AF_INET)
|
|
continue; // TODO: ipv6 link local addresses don't have scope set
|
|
ifaddrs.emplace_back(it2.first);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ok = false;
|
|
for(auto& ifaddr : ifaddrs) {
|
|
ok |= testFwdVia(server::Config{}, ifaddr);
|
|
}
|
|
|
|
#if defined(__rtems__) || defined(vxWorks)
|
|
testSkip(1, "local mcast unnecessary with a single OS process");
|
|
#else
|
|
testOk(!!ok, "Succeeded via at least one interface");
|
|
#endif
|
|
}
|
|
|
|
|
|
} // namespace
|
|
|
|
MAIN(testudpfwd)
|
|
{
|
|
SockAttach attach;
|
|
testPlan(1);
|
|
testSetup();
|
|
pvxs::logger_config_env();
|
|
testFwdIface();
|
|
cleanup_for_valgrind();
|
|
return testDone();
|
|
}
|