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[4105] Implement 4o6-interface-id parameter.

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This commit is contained in:
Tomek Mrugalski 2015-10-31 16:47:51 +09:00
parent 75f18d0a63
commit e648d36192
3 changed files with 64 additions and 3 deletions
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13
src/bin/dhcp4/json_config_parser.cc
View File

@ -204,6 +204,8 @@ protected:
parser = new StringParser(config_id, string_values_);
} else if (config_id.compare("4o6-interface") == 0) {
parser = new StringParser(config_id, string_values_);
} else if (config_id.compare("4o6-interface-id") == 0) {
parser = new StringParser(config_id, string_values_);
} else {
isc_throw(NotImplemented, "unsupported parameter: " << config_id);
}
@ -342,6 +344,17 @@ protected:
// Don't care. 4o6-subnet is optional.
}
// Try 4o6 specific paramter: 4o6-interface-id
try {
std::string ifaceid = string_values_->getParam("4o6-interface-id");
OptionBuffer tmp(ifaceid.begin(), ifaceid.end());
OptionPtr opt(new Option(Option::V6, D6O_INTERFACE_ID, tmp));
subnet4->get4o6().interface_id_ = opt;
subnet4->get4o6().enabled_ = true;
} catch (const DhcpConfigError&) {
}
// Try setting up client class (if specified)
try {
string client_class = string_values_->getParam("client-class");

47
src/bin/dhcp4/tests/config_parser_unittest.cc
View File

@ -3909,11 +3909,12 @@ TEST_F(Dhcp4ParserTest, 4o6subnetIface) {
checkResult(status, 0);
// Now check if the configuration was indeed handled and we have
// expected pool configured.
// expected subnet configured...
Subnet4Ptr subnet = CfgMgr::instance().getStagingCfg()->
getCfgSubnets4()->selectSubnet(IOAddress("192.0.2.200"));
ASSERT_TRUE(subnet);
// ... and that subnet has 4o6 network interface specified.
Cfg4o6& dhcp4o6 = subnet->get4o6();
EXPECT_TRUE(dhcp4o6.enabled_);
EXPECT_EQ(IOAddress("2001:db8::543"), dhcp4o6.subnet4o6_.first);
@ -3921,4 +3922,48 @@ TEST_F(Dhcp4ParserTest, 4o6subnetIface) {
EXPECT_EQ("ethX", dhcp4o6.iface4o6_);
}
// Checks if the DHCPv4 is able to parse the configuration with 4o6 network
// interface-id.
TEST_F(Dhcp4ParserTest, 4o6subnetInterfaceId) {
ConstElementPtr status;
// Just a plain v4 config (no 4o6 parameters)
string config = "{ " + genIfaceConfig() + "," +
"\"rebind-timer\": 2000, "
"\"renew-timer\": 1000, "
"\"subnet4\": [ { "
" \"pools\": [ { \"pool\": \"192.0.2.1 - 192.0.2.100\" } ],"
" \"subnet\": \"192.0.2.0/24\","
" \"4o6-interface-id\": \"vlan123\" } ],"
"\"valid-lifetime\": 4000 }";
ElementPtr json = Element::fromJSON(config);
EXPECT_NO_THROW(status = configureDhcp4Server(*srv_, json));
// check if returned status is OK
checkResult(status, 0);
// Now check if the configuration was indeed handled and we have
// expected 4o6-interface-id configured.
Subnet4Ptr subnet = CfgMgr::instance().getStagingCfg()->
getCfgSubnets4()->selectSubnet(IOAddress("192.0.2.200"));
ASSERT_TRUE(subnet);
Cfg4o6& dhcp4o6 = subnet->get4o6();
EXPECT_TRUE(dhcp4o6.enabled_);
OptionPtr ifaceid = dhcp4o6.interface_id_;
ASSERT_TRUE(ifaceid);
vector<uint8_t> data = ifaceid->getData();
const char *exp_data = "vlan123";
// Let's convert vlan123 to vector<uint8_t> format.
// We need to skip the last \0 byte, thuse sizeof() - 1.
vector<uint8_t> exp(exp_data, exp_data + sizeof(exp_data) - 1);
EXPECT_TRUE(exp == data);
}
}

7
src/lib/dhcpsrv/subnet.h
View File

@ -523,11 +523,14 @@ struct Cfg4o6 {
/// Specifies if 4o6 is enabled on this subnet.
bool enabled_;
/// Specifies the network interface used as subnet selector
/// Specifies the network interface used as v4 subnet selector.
std::string iface4o6_;
/// Specifies the IPv6 subnet used for subnet selection
/// Specifies the IPv6 subnet used for v4 subnet selection.
std::pair<asiolink::IOAddress, uint8_t> subnet4o6_;
/// Specifies the v6 interface-id used for v4 subnet selection.
OptionPtr interface_id_;
};
/// @brief A configuration holder for IPv4 subnet.