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// Copyright (C) 2012-2014 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
#include <dhcpsrv/lease.h>
#include <sstream>
using namespace std;
namespace isc {
namespace dhcp {
Lease::Lease(const isc::asiolink::IOAddress& addr, uint32_t t1, uint32_t t2,
uint32_t valid_lft, SubnetID subnet_id, time_t cltt,
const bool fqdn_fwd, const bool fqdn_rev,
const std::string& hostname)
:addr_(addr), t1_(t1), t2_(t2), valid_lft_(valid_lft), cltt_(cltt),
subnet_id_(subnet_id), fixed_(false), hostname_(hostname),
fqdn_fwd_(fqdn_fwd), fqdn_rev_(fqdn_rev) {
}
std::string
Lease::typeToText(Lease::Type type) {
switch (type) {
case Lease::TYPE_V4:
return string("V4");
case Lease::TYPE_NA:
return string("IA_NA");
case Lease::TYPE_TA:
return string("IA_TA");
case Lease::TYPE_PD:
return string("IA_PD");
break;
default: {
stringstream tmp;
tmp << "unknown (" << type << ")";
return (tmp.str());
}
}
}
bool Lease::expired() const {
// Let's use int64 to avoid problems with negative/large uint32 values
int64_t expire_time = cltt_ + valid_lft_;
return (expire_time < time(NULL));
}
bool
Lease::hasIdenticalFqdn(const Lease& other) const {
return (hostname_ == other.hostname_ &&
fqdn_fwd_ == other.fqdn_fwd_ &&
fqdn_rev_ == other.fqdn_rev_);
}
Lease4::Lease4(const Lease4& other)
: Lease(other.addr_, other.t1_, other.t2_, other.valid_lft_,
other.subnet_id_, other.cltt_, other.fqdn_fwd_,
other.fqdn_rev_, other.hostname_), ext_(other.ext_),
hwaddr_(other.hwaddr_) {
fixed_ = other.fixed_;
comments_ = other.comments_;
if (other.client_id_) {
client_id_.reset(new ClientId(other.client_id_->getClientId()));
} else {
client_id_.reset();
}
}
const std::vector<uint8_t>&
Lease4::getClientIdVector() const {
if(!client_id_) {
static std::vector<uint8_t> empty_vec;
return (empty_vec);
}
return (client_id_->getClientId());
}
bool
Lease4::matches(const Lease4& other) const {
if ((client_id_ && !other.client_id_) ||
(!client_id_ && other.client_id_)) {
// One lease has client-id, but the other doesn't
return false;
}
if (client_id_ && other.client_id_ &&
*client_id_ != *other.client_id_) {
// Different client-ids
return false;
}
return (addr_ == other.addr_ &&
ext_ == other.ext_ &&
hwaddr_ == other.hwaddr_);
}
Lease4&
Lease4::operator=(const Lease4& other) {
if (this != &other) {
addr_ = other.addr_;
t1_ = other.t1_;
t2_ = other.t2_;
valid_lft_ = other.valid_lft_;
cltt_ = other.cltt_;
subnet_id_ = other.subnet_id_;
fixed_ = other.fixed_;
hostname_ = other.hostname_;
fqdn_fwd_ = other.fqdn_fwd_;
fqdn_rev_ = other.fqdn_rev_;
comments_ = other.comments_;
ext_ = other.ext_;
hwaddr_ = other.hwaddr_;
if (other.client_id_) {
client_id_.reset(new ClientId(other.client_id_->getClientId()));
} else {
client_id_.reset();
}
}
return (*this);
}
Lease6::Lease6(Type type, const isc::asiolink::IOAddress& addr,
DuidPtr duid, uint32_t iaid, uint32_t preferred, uint32_t valid,
uint32_t t1, uint32_t t2, SubnetID subnet_id, uint8_t prefixlen)
: Lease(addr, t1, t2, valid, subnet_id, 0/*cltt*/, false, false, ""),
type_(type), prefixlen_(prefixlen), iaid_(iaid), duid_(duid),
preferred_lft_(preferred) {
if (!duid) {
isc_throw(InvalidOperation, "DUID must be specified for a lease");
}
cltt_ = time(NULL);
}
Lease6::Lease6(Type type, const isc::asiolink::IOAddress& addr,
DuidPtr duid, uint32_t iaid, uint32_t preferred, uint32_t valid,
uint32_t t1, uint32_t t2, SubnetID subnet_id,
const bool fqdn_fwd, const bool fqdn_rev,
const std::string& hostname, uint8_t prefixlen)
: Lease(addr, t1, t2, valid, subnet_id, 0/*cltt*/,
fqdn_fwd, fqdn_rev, hostname),
type_(type), prefixlen_(prefixlen), iaid_(iaid), duid_(duid),
preferred_lft_(preferred) {
if (!duid) {
isc_throw(InvalidOperation, "DUID must be specified for a lease");
}
cltt_ = time(NULL);
}
const std::vector<uint8_t>&
Lease6::getDuidVector() const {
if (!duid_) {
static std::vector<uint8_t> empty_vec;
return (empty_vec);
}
return (duid_->getDuid());
}
std::string
Lease6::toText() const {
ostringstream stream;
stream << "Type: " << typeToText(type_) << "("
<< static_cast<int>(type_) << ") ";
stream << "Address: " << addr_ << "\n"
<< "Prefix length: " << static_cast<int>(prefixlen_) << "\n"
<< "IAID: " << iaid_ << "\n"
<< "Pref life: " << preferred_lft_ << "\n"
<< "Valid life: " << valid_lft_ << "\n"
<< "Cltt: " << cltt_ << "\n"
<< "Subnet ID: " << subnet_id_ << "\n";
return (stream.str());
}
std::string
Lease4::toText() const {
ostringstream stream;
stream << "Address: " << addr_ << "\n"
<< "Valid life: " << valid_lft_ << "\n"
<< "T1: " << t1_ << "\n"
<< "T2: " << t2_ << "\n"
<< "Cltt: " << cltt_ << "\n"
<< "Subnet ID: " << subnet_id_ << "\n";
return (stream.str());
}
bool
Lease4::operator==(const Lease4& other) const {
if ( (client_id_ && !other.client_id_) ||
(!client_id_ && other.client_id_) ) {
// One lease has client-id, but the other doesn't
return false;
}
if (client_id_ && other.client_id_ &&
*client_id_ != *other.client_id_) {
// Different client-ids
return false;
}
return (matches(other) &&
subnet_id_ == other.subnet_id_ &&
t1_ == other.t1_ &&
t2_ == other.t2_ &&
valid_lft_ == other.valid_lft_ &&
cltt_ == other.cltt_ &&
fixed_ == other.fixed_ &&
hostname_ == other.hostname_ &&
fqdn_fwd_ == other.fqdn_fwd_ &&
fqdn_rev_ == other.fqdn_rev_ &&
comments_ == other.comments_);
}
bool
Lease6::matches(const Lease6& other) const {
return (addr_ == other.addr_ &&
type_ == other.type_ &&
prefixlen_ == other.prefixlen_ &&
iaid_ == other.iaid_ &&
*duid_ == *other.duid_);
}
bool
Lease6::operator==(const Lease6& other) const {
return (matches(other) &&
preferred_lft_ == other.preferred_lft_ &&
valid_lft_ == other.valid_lft_ &&
t1_ == other.t1_ &&
t2_ == other.t2_ &&
cltt_ == other.cltt_ &&
subnet_id_ == other.subnet_id_ &&
fixed_ == other.fixed_ &&
hostname_ == other.hostname_ &&
fqdn_fwd_ == other.fqdn_fwd_ &&
fqdn_rev_ == other.fqdn_rev_ &&
comments_ == other.comments_);
}
} // namespace isc::dhcp
} // namespace isc
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