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[4097a] Added Dhcpv4SrvTest.subnetGlobalPriority

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This commit is contained in:
Francis Dupont
2015-11-25 13:01:24 +01:00
parent 52887c0ca1
commit e11158fc1e
1 changed files with 66 additions and 0 deletions
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66
src/bin/dhcp4/tests/dhcp4_srv_unittest.cc
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@@ -1843,6 +1843,72 @@ TEST_F(Dhcpv4SrvTest, subnetClassPriority) {
EXPECT_EQ(0, opt->getUint8());
}
// Checks subnet options have the priority over global options
TEST_F(Dhcpv4SrvTest, subnetGlobalPriority) {
IfaceMgrTestConfig test_config(true);
IfaceMgr::instance().openSockets4();
NakedDhcpv4Srv srv(0);
// Subnet and global set an ip-forwarding option in the response.
string config = "{ \"interfaces-config\": {"
" \"interfaces\": [ \"*\" ] }, "
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"valid-lifetime\": 4000, "
"\"subnet4\": [ "
"{ \"pools\": [ { \"pool\": \"192.0.2.1 - 192.0.2.100\" } ], "
" \"subnet\": \"192.0.2.0/24\", "
" \"option-data\": ["
" { \"name\": \"ip-forwarding\", "
" \"data\": \"false\" } ] } ], "
"\"option-data\": ["
" { \"name\": \"ip-forwarding\", "
" \"data\": \"true\" } ] }";
ElementPtr json = Element::fromJSON(config);
ConstElementPtr status;
// Configure the server and make sure the config is accepted
EXPECT_NO_THROW(status = configureDhcp4Server(srv, json));
ASSERT_TRUE(status);
comment_ = config::parseAnswer(rcode_, status);
ASSERT_EQ(0, rcode_);
CfgMgr::instance().commit();
// Create a packet with enough to select the subnet and go through
// the DISCOVER processing
Pkt4Ptr query(new Pkt4(DHCPDISCOVER, 1234));
query->setRemoteAddr(IOAddress("192.0.2.1"));
OptionPtr clientid = generateClientId();
query->addOption(clientid);
query->setIface("eth1");
// Create and add a PRL option to the query
OptionUint8ArrayPtr prl(new OptionUint8Array(Option::V4,
DHO_DHCP_PARAMETER_REQUEST_LIST));
ASSERT_TRUE(prl);
prl->addValue(DHO_IP_FORWARDING);
query->addOption(prl);
// Create and add a host-name option to the query
OptionStringPtr hostname(new OptionString(Option::V4, 12, "foo"));
ASSERT_TRUE(hostname);
query->addOption(hostname);
// Process the query
Pkt4Ptr response = srv.processDiscover(query);
// Processing should add an ip-forwarding option
OptionPtr opt = response->getOption(DHO_IP_FORWARDING);
ASSERT_TRUE(opt);
ASSERT_GT(opt->len(), opt->getHeaderLen());
// Global sets the value to true/1, subnet to false/0
// Here subnet has the priority
EXPECT_EQ(0, opt->getUint8());
}
// Checks class options have the priority over global options
TEST_F(Dhcpv4SrvTest, classGlobalPriority) {
IfaceMgrTestConfig test_config(true);