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Code Issues Releases Wiki Activity

[master] Merge branch 'trac5123'

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This commit is contained in:
Tomek Mrugalski
2017-01-28 11:32:20 +01:00
parent 43fac98e74 c4361e59fd
commit 656d42a5c6
10 changed files with 298 additions and 326 deletions
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40
src/bin/dhcp4/json_config_parser.cc
View File

@@ -307,7 +307,7 @@ public:
}
};
/// @brief Parser that takes care of global DHCPv6 parameters.
/// @brief Parser that takes care of global DHCPv4 parameters.
///
/// See @ref parse method for a list of supported parameters.
class Dhcp4ConfigParser : public isc::data::SimpleParser {
@@ -333,39 +333,29 @@ public:
bool echo_client_id = getBoolean(global, "echo-client-id");
CfgMgr::instance().echoClientId(echo_client_id);
std::string name;
ConstElementPtr value;
try {
// Set the probation period for decline handling.
name = "decline-probation-period";
value = global->get(name);
uint32_t probation_period = getUint32(name, value);
cfg->setDeclinePeriod(probation_period);
// Set the probation period for decline handling.
uint32_t probation_period =
getUint32(global, "decline-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);
cfg->setDhcp4o6Port(dhcp4o6_port);
} catch (const isc::data::TypeError& ex) {
isc_throw(DhcpConfigError,
"invalid value type specified for parameter '" << name
<< "' (" << value->getPosition() << ")");
}
// Set the DHCPv4-over-DHCPv6 interserver port.
// @todo Change for uint16_t
uint32_t dhcp4o6_port = getUint32(global, "dhcp4o6-port");
cfg->setDhcp4o6Port(dhcp4o6_port);
}
private:
/// @brief Returns a value converted to uint32_t
///
/// Instantiation of extractInt() to uint32_t
/// Instantiation of getIntType() to uint32_t
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return an uint32_t value
uint32_t getUint32(const std::string& name,
isc::data::ConstElementPtr value) {
return (extractInt<uint32_t, DhcpConfigError>(name, value));
uint32_t getUint32(isc::data::ConstElementPtr scope,
const std::string& name) {
return (getIntType<uint32_t>(scope, name));
}
};

132
src/bin/dhcp6/json_config_parser.cc
View File

@@ -155,52 +155,36 @@ public:
/// that define a prefix delegation pool.
///
/// @throw DhcpConfigError if configuration parsing fails.
void parse(PoolStoragePtr pools,
ConstElementPtr pd_pool_) {
std::string addr_str;
std::string excluded_prefix_str = "::";
uint8_t prefix_len = 0;
uint8_t delegated_len = 0;
uint8_t excluded_prefix_len = 0;
void parse(PoolStoragePtr pools, ConstElementPtr pd_pool_) {
std::string addr_str = getString(pd_pool_, "prefix");
// Parse the elements that make up the option definition.
BOOST_FOREACH(ConfigPair param, pd_pool_->mapValue()) {
std::string entry(param.first);
ConstElementPtr value(param.second);
try {
if (entry == "prefix") {
addr_str = value->stringValue();
} else if (entry == "excluded-prefix") {
excluded_prefix_str = value->stringValue();
} else if (entry == "prefix-len") {
prefix_len = getUint8(entry, value);
} else if (entry == "delegated-len") {
delegated_len = getUint8(entry, value);
} else if (entry == "excluded-prefix-len") {
excluded_prefix_len = getUint8(entry, value);
} else if (entry == "option-data") {
OptionDataListParser opts_parser(AF_INET6);
opts_parser.parse(options_, value);
} else if (entry == "user-context") {
user_context_ = value;
} else {
isc_throw(isc::dhcp::DhcpConfigError,
"unsupported parameter: " << entry
<< " (" << value->getPosition() << ")");
}
} catch (const isc::data::TypeError&) {
isc_throw(isc::dhcp::DhcpConfigError,
"invalid value type specified for parameter '"
<< entry << "' ("
<< value->getPosition() << ")");
}
uint8_t prefix_len = getUint8(pd_pool_, "prefix-len");
uint8_t delegated_len = getUint8(pd_pool_, "delegated-len");
std::string excluded_prefix_str = "::";
if (pd_pool_->contains("excluded-prefix")) {
excluded_prefix_str = getString(pd_pool_, "excluded-prefix");
}
uint8_t excluded_prefix_len = 0;
if (pd_pool_->contains("excluded-prefix-len")) {
excluded_prefix_len = getUint8(pd_pool_, "excluded-prefix-len");
}
ConstElementPtr option_data = pd_pool_->get("option-data");
if (option_data) {
OptionDataListParser opts_parser(AF_INET6);
opts_parser.parse(options_, option_data);
}
ConstElementPtr user_context = pd_pool_->get("user-context");
if (user_context) {
user_context_ = user_context;
}
// Check the pool parameters. It will throw an exception if any
// of the required parameters are not present or invalid.
requireParam("prefix", pd_pool_);
requireParam("prefix-len", pd_pool_);
requireParam("delegated-len", pd_pool_);
// of the required parameters are invalid.
try {
// Attempt to construct the local pool.
pool_.reset(new Pool6(IOAddress(addr_str),
@@ -228,28 +212,16 @@ public:
private:
/// @brief Require a mandatory element
///
/// @param name Entry name
/// @param config Pools configuration
/// @throw isc::dhcp::DhcpConfigError if not present
void requireParam(const std::string& name, ConstElementPtr config) const {
if (!config->contains(name)) {
isc_throw(isc::dhcp::DhcpConfigError,
"Missing parameter '" << name << "' ("
<< config->getPosition() << ")");
}
}
/// @brief Get an uint8_t value
///
/// @param name Entry name
/// @param value Integer element value
/// Instantiation of getIntType() to uint8_t
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return uint8_t value
/// @throw isc::data::TypeError when it is not an integer
/// isc::dhcp::DhcpConfigError when it does not fit in an uint8_t
uint8_t getUint8(const std::string& name, ConstElementPtr value) const {
return (extractInt<uint8_t, DhcpConfigError>(name, value));
/// @throw isc::dhcp::DhcpConfigError when it is not an uint8_t
uint8_t getUint8(ConstElementPtr scope, const std::string& name) {
return (getIntType<uint8_t>(scope, name));
}
/// Pointer to the created pool object.
@@ -567,39 +539,29 @@ public:
/// or having incorrect values.
void parse(SrvConfigPtr srv_config, ConstElementPtr global) {
std::string name;
ConstElementPtr value;
try {
// Set the probation period for decline handling.
name = "decline-probation-period";
value = global->get(name);
uint32_t probation_period = getUint32(name, value);
srv_config->setDeclinePeriod(probation_period);
// Set the probation period for decline handling.
uint32_t probation_period =
getUint32(global, "decline-probation-period");
srv_config->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_config->setDhcp4o6Port(dhcp4o6_port);
} catch (const isc::data::TypeError& ex) {
isc_throw(DhcpConfigError,
"invalid value type specified for parameter '" << name
<< "' (" << value->getPosition() << ")");
}
// Set the DHCPv4-over-DHCPv6 interserver port.
// @todo Change for uint16_t
uint32_t dhcp4o6_port = getUint32(global, "dhcp4o6-port");
srv_config->setDhcp4o6Port(dhcp4o6_port);
}
private:
/// @brief Returns a value converted to uint32_t
///
/// Instantiation of extractInt() to uint32_t
/// Instantiation of getIntType() to uint32_t
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return an uint32_t value
uint32_t getUint32(const std::string& name,
isc::data::ConstElementPtr value) {
return (extractInt<uint32_t, DhcpConfigError>(name, value));
uint32_t getUint32(isc::data::ConstElementPtr scope,
const std::string& name) {
return (getIntType<uint32_t>(scope, name));
}
};

3
src/lib/cc/Makefile.am
View File

@@ -6,6 +6,7 @@ AM_CXXFLAGS = $(KEA_CXXFLAGS)
lib_LTLIBRARIES = libkea-cc.la
libkea_cc_la_SOURCES = data.cc data.h
libkea_cc_la_SOURCES += dhcp_config_error.h
libkea_cc_la_SOURCES += command_interpreter.cc command_interpreter.h
libkea_cc_la_SOURCES += simple_parser.cc simple_parser.h
@@ -17,7 +18,7 @@ libkea_cc_la_LDFLAGS = -no-undefined -version-info 1:0:0
# Since data.h is now used in the hooks interface, it needs to be
# installed on target system.
libkea_cc_includedir = $(pkgincludedir)/cc
libkea_cc_include_HEADERS = data.h
libkea_cc_include_HEADERS = data.h dhcp_config_error.h
EXTRA_DIST = cc.dox

51
src/lib/cc/dhcp_config_error.h Normal file
View File

@@ -0,0 +1,51 @@
// Copyright (C) 2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#ifndef DHCP_CONFIG_ERROR_H
#define DHCP_CONFIG_ERROR_H
#include <exceptions/exceptions.h>
namespace isc {
namespace dhcp {
/// An exception that is thrown if an error occurs while configuring
/// DHCP server.
/// By convention when this exception is thrown there is a position
/// between parentheses so the code style should be like this:
///
/// try {
/// ...
/// } catch (const DhcpConfigError&) {
/// throw;
/// } catch (const std::exception& ex) {
/// isc_throw(DhcpConfigError, "message" << ex.what()
/// << " (" << getPosition(what) << ")");
/// }
/// @todo: move this header into simple_parser.h as soon as
/// there is no dependency through DhcpConfigParser
/// @todo: create an isc_throw like macro to add the
/// position more easily.
/// @todo: rename the exception for instance into ConfigError
class DhcpConfigError : public isc::Exception {
public:
/// @brief constructor
///
/// @param file name of the file, where exception occurred
/// @param line line of the file, where exception occurred
/// @param what text description of the issue that caused exception
DhcpConfigError(const char* file, size_t line, const char* what)
: isc::Exception(file, line, what) {}
};
}; // end of isc::dhcp namespace
}; // end of isc namespace
#endif // DHCP_CONFIG_ERROR_H

40
src/lib/cc/simple_parser.cc
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2016 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2016-2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -11,6 +11,7 @@
#include <string>
using namespace std;
using isc::dhcp::DhcpConfigError;
namespace isc {
namespace data {
@@ -19,12 +20,14 @@ std::string
SimpleParser::getString(isc::data::ConstElementPtr scope, const std::string& name) {
ConstElementPtr x = scope->get(name);
if (!x) {
isc_throw(BadValue, "String parameter " << name << " not found"
<< "(" << scope->getPosition() << ")");
isc_throw(DhcpConfigError,
"missing parameter '" << name << "' ("
<< scope->getPosition() << ")");
}
if (x->getType() != Element::string) {
isc_throw(BadValue, "Element " << name << " found, but is not a string"
<< "(" << x->getPosition() << ")");
isc_throw(DhcpConfigError,
"invalid type specified for parameter '" << name
<< "' (" << x->getPosition() << ")");
}
return (x->stringValue());
@@ -34,12 +37,14 @@ int64_t
SimpleParser::getInteger(isc::data::ConstElementPtr scope, const std::string& name) {
ConstElementPtr x = scope->get(name);
if (!x) {
isc_throw(BadValue, "Integer parameter " << name << " not found "
<< "(" << scope->getPosition() << ")");
isc_throw(DhcpConfigError,
"missing parameter '" << name << "' ("
<< scope->getPosition() << ")");
}
if (x->getType() != Element::integer) {
isc_throw(BadValue, "Element " << name << " found, but is not an integer"
<< "(" << x->getPosition() << ")");
isc_throw(DhcpConfigError,
"invalid type specified for parameter '" << name
<< "' (" << x->getPosition() << ")");
}
return (x->intValue());
@@ -49,13 +54,14 @@ bool
SimpleParser::getBoolean(isc::data::ConstElementPtr scope, const std::string& name) {
ConstElementPtr x = scope->get(name);
if (!x) {
isc_throw(BadValue, "Boolean element " << name << " not found "
<< "(" << scope->getPosition() << ")");
isc_throw(DhcpConfigError,
"missing parameter '" << name << "' ("
<< scope->getPosition() << ")");
}
if (x->getType() != Element::boolean) {
isc_throw(BadValue, "Element " << name << " found, but is not a boolean"
<< "(" << x->getPosition() << ")");
isc_throw(DhcpConfigError,
"invalid type specified for parameter '" << name
<< "' (" << x->getPosition() << ")");
}
return (x->boolValue());
@@ -112,7 +118,8 @@ size_t SimpleParser::setDefaults(isc::data::ElementPtr scope,
} else if (def_value.value_ == string("false")) {
bool_value = false;
} else {
isc_throw(BadValue, "Internal error. Boolean value specified as "
isc_throw(DhcpConfigError,
"Internal error. Boolean value specified as "
<< def_value.value_ << ", expected true or false");
}
x.reset(new BoolElement(bool_value, pos));
@@ -125,7 +132,8 @@ size_t SimpleParser::setDefaults(isc::data::ElementPtr scope,
}
default:
// No default values for null, list or map
isc_throw(BadValue, "Internal error. Incorrect default value type.");
isc_throw(DhcpConfigError,
"Internal error. Incorrect default value type.");
}
// ... and insert it into the provided Element tree.

63
src/lib/cc/simple_parser.h
View File

@@ -8,6 +8,7 @@
#define SIMPLE_PARSER_H
#include <cc/data.h>
#include <cc/dhcp_config_error.h>
#include <vector>
#include <string>
#include <stdint.h>
@@ -117,86 +118,90 @@ protected:
/// @brief Returns a string parameter from a scope
///
/// Unconditionally returns a parameter. If the parameter is not there or
/// is not of appropriate type, BadValue exception is thrown.
/// Unconditionally returns a parameter.
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return a string value of the parameter
/// @throw DhcpConfigError if the parameter is not there or is not of
/// appropriate type
static std::string getString(isc::data::ConstElementPtr scope,
const std::string& name);
/// @brief Returns an integer parameter from a scope
///
/// Unconditionally returns a parameter. If the parameter is not there or
/// is not of appropriate type, BadValue exception is thrown.
/// Unconditionally returns a parameter.
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return an integer value of the parameter
/// @throw DhcpConfigError if the parameter is not there or is not of
/// appropriate type
static int64_t getInteger(isc::data::ConstElementPtr scope,
const std::string& name);
/// @brief Returns a boolean parameter from a scope
///
/// Unconditionally returns a parameter. If the parameter is not there or
/// is not of appropriate type, BadValue exception is thrown.
/// Unconditionally returns a parameter.
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return a boolean value of the parameter
/// @throw DhcpConfigError if the parameter is not there or is not of
/// appropriate type
static bool getBoolean(isc::data::ConstElementPtr scope,
const std::string& name);
/// @brief Returns an integer value with range checking
/// @brief Returns an integer value with range checking from a scope
///
/// This template should be instantied in parsers when useful
///
/// @tparam int_type the integer type e.g. uint32_t
/// @tparam out_of_range always @c isc::dhcp::DhcpConfigError
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter for error report
/// @param value value of the parameter
/// @return a value of int_type
/// @throw isc::data::TypeError when the value is not an integer
/// @throw out_of_range when the value does not fit in int_type
template <typename int_type, class out_of_range> int_type
extractInt(const std::string& name, ConstElementPtr value) const {
int64_t val_int = value->intValue();
/// @throw DhcpConfigError if the parameter is not there, is not of
/// appropriate type or is out of type value range
template <typename int_type> int_type
getIntType(isc::data::ConstElementPtr scope,
const std::string& name) {
int64_t val_int = getInteger(scope, name);
if ((val_int < std::numeric_limits<int_type>::min()) ||
(val_int > std::numeric_limits<int_type>::max())) {
isc_throw(out_of_range, "out of range value (" << val_int
<< ") specified for parameter '" << name
<< "' (" << value->getPosition() << ")");
isc_throw(isc::dhcp::DhcpConfigError,
"out of range value (" << val_int
<< ") specified for parameter '" << name
<< "' (" << getPosition(name, scope) << ")");
}
return (static_cast<int_type>(val_int));
}
/// @brief Returns a converted value
/// @brief Returns a converted value from a scope
///
/// This template should be instantied in parsers when useful
///
/// @tparam target_type the type of the result
/// @tparam convert the conversion function std::string -> target_type
/// @tparam exception_type always @c isc::dhcp::DhcpConfigError
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter for error report
/// @param type_name name of target_type for error report
/// @param value value of the parameter
/// @return a converted value of target_type
/// @throw isc::data::TypeError when the value is not an integer
/// @throw exception_type when the value cannot be converted
/// @throw DhcpConfigError if the parameter is not there, is not of
/// appropriate type or can not be converted
template <typename target_type,
target_type convert(const std::string&),
class exception_type> target_type
extractConvert(const std::string& name,
const std::string& type_name,
ConstElementPtr value) const {
std::string str = value->stringValue();
target_type convert(const std::string&)> target_type
getAndConvert(isc::data::ConstElementPtr scope,
const std::string& name,
const std::string& type_name) {
std::string str = getString(scope, name);
try {
return (convert(str));
} catch (const std::exception&) {
isc_throw(exception_type, "invalid " << type_name << " (" << str
isc_throw(isc::dhcp::DhcpConfigError,
"invalid " << type_name << " (" << str
<< ") specified for parameter '" << name
<< "' (" << value->getPosition() << ")");
<< "' (" << getPosition(name, scope) << ")");
}
}
};

74
src/lib/cc/tests/simple_parser_unittest.cc
View File

@@ -9,6 +9,7 @@
#include <gtest/gtest.h>
using namespace isc::data;
using isc::dhcp::DhcpConfigError;
/// This table defines sample default values. Although these are DHCPv6
/// specific, the mechanism is generic and can be used by any other component.
@@ -57,23 +58,22 @@ public:
class SimpleParserClassTest : public SimpleParser {
public:
/// @brief Instantiation of extractInt for uint8_t
/// @brief Instantiation of getIntType for uint8_t
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter for error report
/// @param value value of the parameter
/// @return an uint8_t value
uint8_t extractUint8(const std::string& name, ConstElementPtr value) const {
return (extractInt<uint8_t, isc::OutOfRange>(name, value));
uint8_t getUint8(ConstElementPtr scope, const std::string& name) {
return (getIntType<uint8_t>(scope, name));
}
/// @brief Instantiation of extractConvert
/// @brief Instantiation of getAndConvert
///
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter for error report
/// @param value value of the parameter
/// @return a bool value
bool extractBool(const std::string& name, ConstElementPtr value) const {
return (extractConvert<bool, toBool, isc::BadValue>
(name, "boolean", value));
bool getAsBool(ConstElementPtr scope, const std::string& name) {
return (getAndConvert<bool, toBool>(scope, name, "boolean"));
}
/// @brief Convert to boolean
@@ -169,45 +169,53 @@ TEST_F(SimpleParserTest, setListDefaults) {
checkIntegerValue(third, "renew-timer", 900);
}
// This test exercises the extractInt template
TEST_F(SimpleParserTest, extractInt) {
// This test exercises the getIntType template
TEST_F(SimpleParserTest, getIntType) {
SimpleParserClassTest parser;
// extractInt checks if it is an integer
ConstElementPtr not_int(new StringElement("xyz"));
EXPECT_THROW(parser.extractUint8("foo", not_int), TypeError);
// getIntType checks it can be found
ElementPtr not_found = Element::fromJSON("{ \"bar\": 1 }");
EXPECT_THROW(parser.getUint8(not_found, "foo"), DhcpConfigError);
// extractInt checks bounds
ConstElementPtr negative(new IntElement(-1));
EXPECT_THROW(parser.extractUint8("foo", negative), isc::OutOfRange);
ConstElementPtr too_large(new IntElement(1024));
EXPECT_THROW(parser.extractUint8("foo", too_large),isc::OutOfRange);
// getIntType checks if it is an integer
ElementPtr not_int = Element::fromJSON("{ \"foo\": \"xyz\" }");
EXPECT_THROW(parser.getUint8(not_int, "foo"), DhcpConfigError);
// checks if extractInt can return the expected value
ConstElementPtr hundred(new IntElement(100));
// getIntType checks bounds
ElementPtr negative = Element::fromJSON("{ \"foo\": -1 }");
EXPECT_THROW(parser.getUint8(negative, "foo"), DhcpConfigError);
ElementPtr too_large = Element::fromJSON("{ \"foo\": 1024 }");
EXPECT_THROW(parser.getUint8(too_large, "foo"), DhcpConfigError);
// checks if getIntType can return the expected value
ElementPtr hundred = Element::fromJSON("{ \"foo\": 100 }");
uint8_t val = 0;
EXPECT_NO_THROW(val = parser.extractUint8("foo", hundred));
EXPECT_NO_THROW(val = parser.getUint8(hundred, "foo"));
EXPECT_EQ(100, val);
}
// This test exercises the extractConvert template
TEST_F(SimpleParserTest, extractConvert) {
// This test exercises the getAndConvert template
TEST_F(SimpleParserTest, getAndConvert) {
SimpleParserClassTest parser;
// extractConvert checks if it is a string
ConstElementPtr not_bool(new IntElement(1));
EXPECT_THROW(parser.extractBool("foo", not_bool), TypeError);
// getAndConvert checks it can be found
ElementPtr not_found = Element::fromJSON("{ \"bar\": \"true\" }");
EXPECT_THROW(parser.getAsBool(not_found, "foo"), DhcpConfigError);
// checks if extractConvert can return the expected value
ConstElementPtr a_bool(new StringElement("false"));
// getAndConvert checks if it is a string
ElementPtr not_bool = Element::fromJSON("{ \"foo\": 1 }");
EXPECT_THROW(parser.getAsBool(not_bool, "foo"), DhcpConfigError);
// checks if getAndConvert can return the expected value
ElementPtr a_bool = Element::fromJSON("{ \"foo\": \"false\" }");
bool val = true;
EXPECT_NO_THROW(val = parser.extractBool("foo", a_bool));
EXPECT_NO_THROW(val = parser.getAsBool(a_bool, "foo"));
EXPECT_FALSE(val);
// extractConvert checks convertion
ConstElementPtr bad_bool(new StringElement("foo"));
EXPECT_THROW(parser.extractBool("bar", bad_bool), isc::BadValue);
// getAndConvert checks convertion
ElementPtr bad_bool = Element::fromJSON("{ \"foo\": \"bar\" }");
EXPECT_THROW(parser.getAsBool(bad_bool, "bar"), DhcpConfigError);
}

17
src/lib/dhcpsrv/parsers/dhcp_config_parser.h
View File

@@ -1,4 +1,4 @@
// Copyright (C) 2013-2015 Internet Systems Consortium, Inc. ("ISC")
// Copyright (C) 2013-2015,2017 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
@@ -9,6 +9,7 @@
#include <exceptions/exceptions.h>
#include <cc/data.h>
#include <cc/dhcp_config_error.h>
#include <stdint.h>
#include <string>
#include <map>
@@ -16,20 +17,6 @@
namespace isc {
namespace dhcp {
/// An exception that is thrown if an error occurs while configuring
/// DHCP server.
class DhcpConfigError : public isc::Exception {
public:
/// @brief constructor
///
/// @param file name of the file, where exception occurred
/// @param line line of the file, where exception occurred
/// @param what text description of the issue that caused exception
DhcpConfigError(const char* file, size_t line, const char* what)
: isc::Exception(file, line, what) {}
};
/// @brief Forward declaration to DhcpConfigParser class.
///
/// It is only needed here to define types that are

165
src/lib/dhcpsrv/parsers/dhcp_parsers.cc
View File

@@ -1076,51 +1076,45 @@ SubnetConfigParser::createSubnet(ConstElementPtr params) {
//**************************** D2ClientConfigParser **********************
uint32_t
D2ClientConfigParser::getUint32(const std::string& name,
ConstElementPtr value) const {
return (extractInt<uint32_t, DhcpConfigError>(name, value));
D2ClientConfigParser::getUint32(ConstElementPtr scope,
const std::string& name) {
return (getIntType<uint32_t>(scope, name));
}
// Can't use a constructor as a function
namespace {
IOAddress buildIOAddress(const std::string& str) { return (IOAddress(str)); }
};
IOAddress
D2ClientConfigParser::getIOAddress(const std::string& name,
ConstElementPtr value) const {
return (extractConvert<IOAddress,
buildIOAddress,
DhcpConfigError>(name, "address", value));
D2ClientConfigParser::getIOAddress(ConstElementPtr scope,
const std::string& name) {
return (getAndConvert<IOAddress,
buildIOAddress>(scope, name, "address"));
}
dhcp_ddns::NameChangeProtocol
D2ClientConfigParser::getProtocol(const std::string& name,
ConstElementPtr value) const {
return (extractConvert<dhcp_ddns::NameChangeProtocol,
dhcp_ddns::stringToNcrProtocol,
DhcpConfigError>(name,
"NameChangeRequest protocol",
value));
D2ClientConfigParser::getProtocol(ConstElementPtr scope,
const std::string& name) {
return (getAndConvert<dhcp_ddns::NameChangeProtocol,
dhcp_ddns::stringToNcrProtocol>
(scope, name, "NameChangeRequest protocol"));
}
dhcp_ddns::NameChangeFormat
D2ClientConfigParser::getFormat(const std::string& name,
ConstElementPtr value) const {
return (extractConvert<dhcp_ddns::NameChangeFormat,
dhcp_ddns::stringToNcrFormat,
DhcpConfigError>(name,
"NameChangeRequest format",
value));
D2ClientConfigParser::getFormat(ConstElementPtr scope,
const std::string& name) {
return (getAndConvert<dhcp_ddns::NameChangeFormat,
dhcp_ddns::stringToNcrFormat>
(scope, name, "NameChangeRequest format"));
}
D2ClientConfig::ReplaceClientNameMode
D2ClientConfigParser::getMode(const std::string& name,
ConstElementPtr value) const {
return (extractConvert<D2ClientConfig::ReplaceClientNameMode,
D2ClientConfig::stringToReplaceClientNameMode,
DhcpConfigError>(name,
"ReplaceClientName mode",
value));
D2ClientConfigParser::getMode(ConstElementPtr scope,
const std::string& name) {
return (getAndConvert<D2ClientConfig::ReplaceClientNameMode,
D2ClientConfig::stringToReplaceClientNameMode>
(scope, name, "ReplaceClientName mode"));
}
D2ClientConfigPtr
@@ -1142,69 +1136,44 @@ D2ClientConfigParser::parse(isc::data::ConstElementPtr client_config) {
// Get all parameters that are needed to create the D2ClientConfig.
std::string qualifying_suffix;
bool found_qualifying_suffix = false;
IOAddress server_ip(0);
uint32_t server_port = 0;
std::string sender_ip_str;
uint32_t sender_port = 0;
uint32_t max_queue_size = 1024;
dhcp_ddns::NameChangeProtocol ncr_protocol;
dhcp_ddns::NameChangeFormat ncr_format;
bool always_include_fqdn = false;
bool allow_client_update;
bool override_no_update = false;
bool override_client_update = false;
D2ClientConfig::ReplaceClientNameMode replace_client_name_mode =
D2ClientConfig::ReplaceClientNameMode::RCM_NEVER;
std::string generated_prefix;
if (client_config->contains("qualifying-suffix")) {
qualifying_suffix = getString(client_config, "qualifying-suffix");
found_qualifying_suffix = true;
}
IOAddress server_ip = getIOAddress(client_config, "server-ip");
uint32_t server_port = getUint32(client_config, "server-port");
std::string sender_ip_str = getString(client_config, "sender-ip");
uint32_t sender_port = getUint32(client_config, "sender-port");
uint32_t max_queue_size = getUint32(client_config, "max-queue-size");
dhcp_ddns::NameChangeProtocol ncr_protocol =
getProtocol(client_config, "ncr-protocol");
dhcp_ddns::NameChangeFormat ncr_format =
getFormat(client_config, "ncr-format");
bool always_include_fqdn =
getBoolean(client_config, "always-include-fqdn");
// bool allow_client_update; (unused)
bool override_no_update =
getBoolean(client_config, "override-no-update");
bool override_client_update =
getBoolean(client_config, "override-client-update");
D2ClientConfig::ReplaceClientNameMode replace_client_name_mode =
getMode(client_config, "replace-client-name");
std::string generated_prefix =
getString(client_config, "generated-prefix");
BOOST_FOREACH(ConfigPair param, client_config->mapValue()) {
std::string entry(param.first);
ConstElementPtr value(param.second);
try {
if (entry == "enable-updates") {
// already done.
} else if (entry == "qualifying-suffix") {
qualifying_suffix = value->stringValue();
found_qualifying_suffix = true;
} else if (entry == "server-ip") {
server_ip = getIOAddress("server-ip", value);
} else if (entry == "server-port") {
server_port = getUint32("server-port", value);
} else if (entry == "sender-ip") {
sender_ip_str = value->stringValue();
} else if (entry == "sender-port") {
sender_port = getUint32("sender-port", value);
} else if (entry == "max-queue-size") {
max_queue_size = getUint32("max-queue-size", value);
} else if (entry == "ncr-protocol") {
ncr_protocol = getProtocol("ncr-protocol", value);
} else if (entry == "ncr-format") {
ncr_format = getFormat("ncr-format", value);
} else if (entry == "always-include-fqdn") {
always_include_fqdn = value->boolValue();
} else if (entry == "allow-client-update") {
allow_client_update = value->boolValue();
// currently unused
(void)allow_client_update;
} else if (entry == "override-no-update") {
override_no_update = value->boolValue();
} else if (entry == "override-client-update") {
override_client_update = value->boolValue();
} else if (entry == "replace-client-name") {
replace_client_name_mode = getMode("replace-client-name", value);
} else if (entry == "generated-prefix") {
generated_prefix = value->stringValue();
} else {
isc_throw(DhcpConfigError,
"unsupported parameter '" << entry
<< " (" << value->getPosition() << ")");
}
} catch (const isc::data::TypeError&) {
isc_throw(DhcpConfigError,
"invalid value type specified for parameter '" << entry
<< " (" << value->getPosition() << ")");
}
}
// Qualifying-suffix is required when updates are enabled
if (enable_updates && !found_qualifying_suffix) {
@@ -1291,18 +1260,8 @@ D2ClientConfigParser::parse(isc::data::ConstElementPtr client_config) {
bool
D2ClientConfigParser::isShortCutDisabled(isc::data::ConstElementPtr d2_config) {
if (!d2_config->contains("enable-updates")) {
isc_throw(DhcpConfigError,
"Mandatory parameter 'enable-updates' missing ("
<< d2_config->getPosition() << ")");
}
ConstElementPtr enable = d2_config->get("enable-updates");
if (enable->getType() != Element::boolean) {
isc_throw(DhcpConfigError,
"invalid value type specified for parameter"
" 'enable-updates' (" << enable->getPosition() << ")");
}
return (!enable->boolValue() && (d2_config->mapValue().size() == 1));
bool value = getBoolean(d2_config, "enable-updates");
return (!value && (d2_config->mapValue().size() == 1));
}
/// @brief This table defines default values for D2 client configuration

39
src/lib/dhcpsrv/parsers/dhcp_parsers.h
View File

@@ -893,52 +893,53 @@ private:
/// @brief Returns a value converted to uint32_t
///
/// Instantiation of extractInt() to uint32_t
/// Instantiation of getIntType() to uint32_t
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return an uint32_t value
uint32_t
getUint32(const std::string& name, isc::data::ConstElementPtr value) const;
getUint32(isc::data::ConstElementPtr scope, const std::string& name);
/// @brief Returns a value converted to IOAddress
///
/// Instantiation of extractConvert() to IOAddress
/// Instantiation of getAndConvert() to IOAddress
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return an IOAddress value
isc::asiolink::IOAddress
getIOAddress(const std::string& name,
isc::data::ConstElementPtr value) const;
getIOAddress(isc::data::ConstElementPtr scope, const std::string& name);
/// @brief Returns a value converted to NameChangeProtocol
///
/// Instantiation of extractInt() to NameChangeProtocol
/// Instantiation of getAndConvert() to NameChangeProtocol
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return a NameChangeProtocol value
dhcp_ddns::NameChangeProtocol
getProtocol(const std::string& name,
isc::data::ConstElementPtr value) const;
getProtocol(isc::data::ConstElementPtr scope, const std::string& name);
/// @brief Returns a value converted to NameChangeFormat
///
/// Instantiation of extractConvert() to NameChangeFormat
/// Instantiation of getAndConvert() to NameChangeFormat
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return a NameChangeFormat value
dhcp_ddns::NameChangeFormat
getFormat(const std::string& name,
isc::data::ConstElementPtr value) const;
getFormat(isc::data::ConstElementPtr scope, const std::string& name);
/// @brief Returns a value converted to ReplaceClientNameMode
///
/// Instantiation of extractConvert() to ReplaceClientNameMode
/// Instantiation of getAndConvert() to ReplaceClientNameMode
///
/// @param value value of the parameter
/// @param scope specified parameter will be extracted from this scope
/// @param name name of the parameter
/// @return a NameChangeFormat value
D2ClientConfig::ReplaceClientNameMode
getMode(const std::string& name,
isc::data::ConstElementPtr value) const;
getMode(isc::data::ConstElementPtr scope, const std::string& name);
};
}; // end of isc::dhcp namespace