void IPTest::test_equals(const IP &ip1, const IP &ip2) {
EXPECT_EQ(ip1.dst_addr(), ip2.dst_addr());
EXPECT_EQ(ip1.src_addr(), ip2.src_addr());
EXPECT_EQ(ip1.id(), ip2.id());
EXPECT_EQ(ip1.frag_off(), ip2.frag_off());
EXPECT_EQ(ip1.tos(), ip2.tos());
EXPECT_EQ(ip1.ttl(), ip2.ttl());
EXPECT_EQ(ip1.version(), ip2.version());
EXPECT_EQ((bool)ip1.inner_pdu(), (bool)ip2.inner_pdu());
}
void send_packets(PacketSender& sender) {
// ICMPs are icmp-requests by default
IP ip = IP(addr, iface.addresses().ip_addr) / ICMP();
ICMP& icmp = ip.rfind_pdu<ICMP>();
icmp.sequence(sequence);
// We'll find at most 20 hops.
for (auto i = 1; i <= 20; ++i) {
// Set this ICMP id
icmp.id(i);
// Set the time-to-live option
ip.ttl(i);
// Critical section
{
lock_guard<mutex> _(lock);
ttls[i] = i;
}
sender.send(ip);
// Give it a little time
sleep_for(milliseconds(100));
}
running = false;
sender.send(ip);
}
void send_packets(PacketSender &sender) {
// ICMPs are icmp-requests by default
IP ip = IP(addr, iface.addresses().ip_addr) / ICMP();
// We'll find at most 10 hops.
for(auto i = 1; i <= 10; ++i) {
// Set this "unique" id
ip.id(i);
// Set the time-to-live option
ip.ttl(i);
// Critical section
{
std::lock_guard<std::mutex> _(lock);
ttls[i] = i;
}
sender.send(ip);
// Give him a little time
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
running = false;
sender.send(ip);
}
TEST_F(IPTest, TTL) {
IP ip;
ip.ttl(0x7f);
EXPECT_EQ(ip.ttl(), 0x7f);
}
