Commit 20848941 authored by Tomek Mrugalski's avatar Tomek Mrugalski 🛰
Browse files

[5019_rebase] Review changes:

 - RSOOListConfigParser migrated
 - Global parser tweaked (SrvConfig passed as parameter)
 - duplicate_option_warning removed
parent 737a7959
......@@ -533,11 +533,6 @@ server configuration, a set of parsers were successfully created, but
one of them failed to commit its changes. The reason for the failure
is given in the message.
% DHCP4_PARSER_CREATED created parser for configuration element %1
A debug message output during a configuration update of the DHCPv4
server, notifying that the parser for the specified configuration element
has been successfully created.
% DHCP4_PARSER_EXCEPTION failed to create or run parser for configuration element %1
On receipt of message containing details to a change of its configuration,
the DHCPv4 server failed to create a parser to decode the contents of
......
......@@ -196,19 +196,6 @@ protected:
return (parser);
}
/// @brief Issues a DHCP4 server specific warning regarding duplicate subnet
/// options.
///
/// @param code is the numeric option code of the duplicate option
/// @param addr is the subnet address
/// @todo a means to know the correct logger and perhaps a common
/// message would allow this method to be emitted by the base class.
virtual void duplicate_option_warning(uint32_t code,
isc::asiolink::IOAddress& addr) {
LOG_WARN(dhcp4_logger, DHCP4_CONFIG_OPTION_DUPLICATE)
.arg(code).arg(addr.toText());
}
/// @brief Instantiates the IPv4 Subnet based on a given IPv4 address
/// and prefix length.
///
......@@ -390,6 +377,7 @@ public:
/// @brief Sets global parameters in staging configuration
///
/// @param global global configuration scope
/// @param cfg Server configuration (parsed parameters will be stored here)
///
/// Currently this method sets the following global parameters:
///
......@@ -399,14 +387,13 @@ public:
///
/// @throw DhcpConfigError if parameters are missing or
/// or having incorrect values.
void parse(ConstElementPtr global) {
void parse(SrvConfigPtr cfg, ConstElementPtr global) {
// Set whether v4 server is supposed to echo back client-id
// (yes = RFC6842 compatible, no = backward compatibility)
bool echo_client_id = getBoolean(global, "echo-client-id");
CfgMgr::instance().echoClientId(echo_client_id);
SrvConfigPtr srv_cfg = CfgMgr::instance().getStagingCfg();
std::string name;
ConstElementPtr value;
try {
......@@ -414,14 +401,14 @@ public:
name = "decline-probation-period";
value = global->get(name);
uint32_t probation_period = getUint32(name, value);
srv_cfg->setDeclinePeriod(probation_period);
cfg->setDeclinePeriod(probation_period);
// Set the DHCPv4-over-DHCPv6 interserver port.
name = "dhcp4o6-port";
value = global->get(name);
// @todo Change for uint16_t
uint32_t dhcp4o6_port = getUint32(name, value);
srv_cfg->setDhcp4o6Port(dhcp4o6_port);
cfg->setDhcp4o6Port(dhcp4o6_port);
} catch (const isc::data::TypeError& ex) {
isc_throw(DhcpConfigError,
"invalid value type specified for parameter '" << name
......@@ -553,16 +540,6 @@ configureDhcp4Server(Dhcpv4Srv&, isc::data::ConstElementPtr config_set) {
// for option definitions. This is equivalent to commiting empty container.
LibDHCP::setRuntimeOptionDefs(OptionDefSpaceContainer());
// Some of the values specified in the configuration depend on
// other values. Typically, the values in the subnet4 structure
// depend on the global values. Also, option values configuration
// must be performed after the option definitions configurations.
// Thus we group parsers and will fire them in the right order:
// all parsers other than: lease-database, subnet4 and option-data parser,
// then: option-data parser, subnet4 parser, lease-database parser.
// Please do not change this order!
ParserCollection independent_parsers;
// Some of the parsers alter the state of the system in a way that can't
// easily be undone. (Or alter it in a way such that undoing the change has
// the same risk of failure as doing the change.)
......@@ -720,21 +697,10 @@ configureDhcp4Server(Dhcpv4Srv&, isc::data::ConstElementPtr config_set) {
continue;
}
/// @todo: 5116 ticket: remove this chunk below once all parser
/// tickets are done.
ParserPtr parser(createGlobalDhcp4ConfigParser(config_pair.first,
config_pair.second));
LOG_DEBUG(dhcp4_logger, DBG_DHCP4_DETAIL, DHCP4_PARSER_CREATED)
.arg(config_pair.first);
// Those parsers should be started before other
// parsers so we can call build straight away.
independent_parsers.push_back(parser);
parser->build(config_pair.second);
// The commit operation here may modify the global storage
// but we need it so as the subnet6 parser can access the
// parsed data.
parser->commit();
// If we got here, no code handled this parameter, so we bail out.
isc_throw(DhcpConfigError,
"unsupported global configuration parameter: " << config_pair.first
<< " (" << config_pair.second->getPosition() << ")");
}
// Setup the command channel.
......@@ -742,7 +708,7 @@ configureDhcp4Server(Dhcpv4Srv&, isc::data::ConstElementPtr config_set) {
// Apply global options in the staging config.
Dhcp4ConfigParser global_parser;
global_parser.parse(mutable_cfg);
global_parser.parse(srv_cfg, mutable_cfg);
} catch (const isc::Exception& ex) {
LOG_ERROR(dhcp4_logger, DHCP4_PARSER_FAIL)
......
......@@ -543,30 +543,17 @@ public:
/// The options on this list can be specified using an option code or option
/// name. Therefore, the values on the list should always be enclosed in
/// "quotes".
class RSOOListConfigParser : public DhcpConfigParser {
class RSOOListConfigParser : public isc::data::SimpleParser {
public:
/// @brief constructor
///
/// As this is a dedicated parser, it must be used to parse
/// "relay-supplied-options" parameter only. All other types will throw exception.
///
/// @param param_name name of the configuration parameter being parsed
/// @throw BadValue if supplied parameter name is not "relay-supplied-options"
RSOOListConfigParser(const std::string& param_name) {
if (param_name != "relay-supplied-options") {
isc_throw(BadValue, "Internal error. RSOO configuration "
"parser called for the wrong parameter: " << param_name);
}
}
/// @brief parses parameters value
///
/// Parses configuration entry (list of sources) and adds each element
/// to the RSOO list.
///
/// @param value pointer to the content of parsed values
virtual void build(isc::data::ConstElementPtr value) {
/// @param cfg server configuration (RSOO will be stored here)
void parse(SrvConfigPtr cfg, isc::data::ConstElementPtr value) {
try {
BOOST_FOREACH(ConstElementPtr source_elem, value->listValue()) {
std::string option_str = source_elem->stringValue();
......@@ -603,7 +590,7 @@ public:
" relay-supplied-options");
}
}
CfgMgr::instance().getStagingCfg()->getCfgRSOO()->enable(code);
cfg->getCfgRSOO()->enable(code);
}
} catch (const std::exception& ex) {
// Rethrow exception with the appended position of the parsed
......@@ -611,9 +598,6 @@ public:
isc_throw(DhcpConfigError, ex.what() << " (" << value->getPosition() << ")");
}
}
/// @brief Does nothing.
virtual void commit() {}
};
class Dhcp6ConfigParser : public isc::data::SimpleParser {
......@@ -622,6 +606,7 @@ public:
/// @brief Sets global parameters in staging configuration
///
/// @param global global configuration scope
/// @param cfg Server configuration (parsed parameters will be stored here)
///
/// Currently this method sets the following global parameters:
///
......@@ -630,9 +615,8 @@ public:
///
/// @throw DhcpConfigError if parameters are missing or
/// or having incorrect values.
void parse(ConstElementPtr global) {
void parse(SrvConfigPtr srv_config, ConstElementPtr global) {
SrvConfigPtr srv_config = CfgMgr::instance().getStagingCfg();
std::string name;
ConstElementPtr value;
try {
......@@ -703,14 +687,13 @@ DhcpConfigParser* createGlobal6DhcpConfigParser(const std::string& config_id,
// lease-database and hosts-database have been converted to SimpleParser already.
// mac-source has been converted to SimpleParser.
// dhcp-ddns has been converted to SimpleParser
if (config_id.compare("relay-supplied-options") == 0) {
parser = new RSOOListConfigParser(config_id);
// rsoo has been converted to SimpleParser.
// control-socket has been converted to SimpleParser.
// expired-leases-processing has been converted to SimpleParser.
// client-classes has been converted to SimpleParser.
// host-reservation-identifiers have been converted to SimpleParser already.
// server-id has been migrated to SimpleParser
} else {
{
isc_throw(DhcpConfigError,
"unsupported global configuration parameter: "
<< config_id << " (" << element->getPosition() << ")");
......@@ -967,6 +950,12 @@ configureDhcp6Server(Dhcpv6Srv&, isc::data::ConstElementPtr config_set) {
continue;
}
if (config_pair.first == "relay-supplied-options") {
RSOOListConfigParser parser;
parser.parse(srv_config, config_pair.second);
continue;
}
/// @todo: 5116 ticket: remove this chunk below once all parser
/// tickets are done.
ParserPtr parser(createGlobal6DhcpConfigParser(config_pair.first,
......@@ -989,7 +978,7 @@ configureDhcp6Server(Dhcpv6Srv&, isc::data::ConstElementPtr config_set) {
// Apply global options in the staging config.
Dhcp6ConfigParser global_parser;
global_parser.parse(mutable_cfg);
global_parser.parse(srv_config, mutable_cfg);
} catch (const isc::Exception& ex) {
LOG_ERROR(dhcp6_logger, DHCP6_PARSER_FAIL)
......
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