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// Copyright (C) 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
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <dhcpsrv/client_class_def.h>
#include <dhcpsrv/cfgmgr.h>
#include <boost/foreach.hpp>
using namespace isc::data;
namespace isc {
namespace dhcp {
//********** ClientClassDef ******************//
ClientClassDef::ClientClassDef(const std::string& name,
const ExpressionPtr& match_expr,
const CfgOptionPtr& cfg_option)
: name_(name), match_expr_(match_expr), cfg_option_(cfg_option),
next_server_(asiolink::IOAddress::IPV4_ZERO_ADDRESS()) {
// Name can't be blank
if (name_.empty()) {
isc_throw(BadValue, "Client Class name cannot be blank");
}
// We permit an empty expression for now. This will likely be useful
// for automatic classes such as vendor class.
// For classes without options, make sure we have an empty collection
if (!cfg_option_) {
cfg_option_.reset(new CfgOption());
}
}
ClientClassDef::ClientClassDef(const ClientClassDef& rhs)
: name_(rhs.name_), match_expr_(ExpressionPtr()),
cfg_option_(new CfgOption()),
next_server_(asiolink::IOAddress::IPV4_ZERO_ADDRESS()) {
if (rhs.match_expr_) {
match_expr_.reset(new Expression());
*match_expr_ = *(rhs.match_expr_);
}
if (rhs.cfg_option_) {
rhs.cfg_option_->copyTo(*cfg_option_);
}
next_server_ = rhs.next_server_;
sname_ = rhs.sname_;
filename_ = rhs.filename_;
}
ClientClassDef::~ClientClassDef() {
}
std::string
ClientClassDef::getName() const {
return (name_);
}
void
ClientClassDef::setName(const std::string& name) {
name_ = name;
}
const ExpressionPtr&
ClientClassDef::getMatchExpr() const {
return (match_expr_);
}
void
ClientClassDef::setMatchExpr(const ExpressionPtr& match_expr) {
match_expr_ = match_expr;
}
std::string
ClientClassDef::getTest() const {
return (test_);
}
void
ClientClassDef::setTest(const std::string& test) {
test_ = test;
}
const CfgOptionPtr&
ClientClassDef::getCfgOption() const {
return (cfg_option_);
}
void
ClientClassDef::setCfgOption(const CfgOptionPtr& cfg_option) {
cfg_option_ = cfg_option;
}
bool
ClientClassDef::equals(const ClientClassDef& other) const {
return ((name_ == other.name_) &&
((!match_expr_ && !other.match_expr_) ||
(match_expr_ && other.match_expr_ &&
(*match_expr_ == *(other.match_expr_)))) &&
((!cfg_option_ && !other.cfg_option_) ||
(cfg_option_ && other.cfg_option_ &&
(*cfg_option_ == *other.cfg_option_))) &&
(next_server_ == other.next_server_) &&
(sname_ == other.sname_) &&
(filename_ == other.filename_));
}
ElementPtr
ClientClassDef:: toElement() const {
uint16_t family = CfgMgr::instance().getFamily();
ElementPtr result = Element::createMap();
// Set name
result->set("name", Element::create(name_));
// Set original match expression (empty string won't parse)
if (!test_.empty()) {
result->set("test", Element::create(test_));
}
// Set option-data
result->set("option-data", cfg_option_->toElement());
if (family != AF_INET) {
// Other parameters are DHCPv4 specific
return (result);
}
// Set next-server
result->set("next-server", Element::create(next_server_.toText()));
// Set server-hostname
result->set("server-hostname", Element::create(sname_));
// Set boot-file-name
result->set("boot-file-name", Element::create(filename_));
return (result);
}
std::ostream& operator<<(std::ostream& os, const ClientClassDef& x) {
os << "ClientClassDef:" << x.getName();
return (os);
}
//********** ClientClassDictionary ******************//
ClientClassDictionary::ClientClassDictionary()
: classes_(new ClientClassDefMap()) {
}
ClientClassDictionary::ClientClassDictionary(const ClientClassDictionary& rhs)
: classes_(new ClientClassDefMap()) {
BOOST_FOREACH(ClientClassMapPair cclass, *(rhs.classes_)) {
ClientClassDefPtr copy(new ClientClassDef(*(cclass.second)));
addClass(copy);
}
}
ClientClassDictionary::~ClientClassDictionary() {
}
void
ClientClassDictionary::addClass(const std::string& name,
const ExpressionPtr& match_expr,
const std::string& test,
const CfgOptionPtr& cfg_option,
asiolink::IOAddress next_server,
const std::string& sname,
const std::string& filename) {
ClientClassDefPtr cclass(new ClientClassDef(name, match_expr, cfg_option));
cclass->setTest(test);
cclass->setNextServer(next_server);
cclass->setSname(sname);
cclass->setFilename(filename);
addClass(cclass);
}
void
ClientClassDictionary::addClass(ClientClassDefPtr& class_def) {
if (!class_def) {
isc_throw(BadValue, "ClientClassDictionary::addClass "
" - class definition cannot be null");
}
if (findClass(class_def->getName())) {
isc_throw(DuplicateClientClassDef, "Client Class: "
<< class_def->getName() << " has already been defined");
}
(*classes_)[class_def->getName()] = class_def;
}
ClientClassDefPtr
ClientClassDictionary::findClass(const std::string& name) const {
ClientClassDefMap::iterator it = classes_->find(name);
if (it != classes_->end()) {
return (*it).second;
}
return(ClientClassDefPtr());
}
void
ClientClassDictionary::removeClass(const std::string& name) {
classes_->erase(name);
}
const ClientClassDefMapPtr&
ClientClassDictionary::getClasses() const {
return (classes_);
}
bool
ClientClassDictionary::equals(const ClientClassDictionary& other) const {
if (classes_->size() != other.classes_->size()) {
return (false);
}
ClientClassDefMap::iterator this_class = classes_->begin();
ClientClassDefMap::iterator other_class = other.classes_->begin();
while (this_class != classes_->end() &&
other_class != other.classes_->end()) {
if (!(*this_class).second || !(*other_class).second ||
(*(*this_class).second) != (*(*other_class).second)) {
return false;
}
++this_class;
++other_class;
}
return (true);
}
ElementPtr
ClientClassDictionary::toElement() const {
ElementPtr result = Element::createList();
// Iterate on the map
for (ClientClassDefMap::iterator this_class = classes_->begin();
this_class != classes_->end(); ++this_class) {
result->add(this_class->second->toElement());
}
return (result);
}
} // namespace isc::dhcp
} // namespace isc
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