kea/src/lib/dhcp/duid.cc

// Copyright (C) 2012 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 <vector>
#include <exceptions/exceptions.h>
#include <stdint.h>
#include <util/io_utilities.h>
#include <dhcp/duid.h>

namespace isc {
namespace dhcp {

DUID::DUID(const std::vector<uint8_t>& duid) {
    if (duid.size() > MAX_DUID_LEN) {
        isc_throw(OutOfRange, "DUID too large");
    } else {
        duid_ = duid;
    }
}

DUID::DUID(const uint8_t * data, size_t len) {
    if (len > MAX_DUID_LEN) {
        isc_throw(OutOfRange, "DUID too large");
    }

    duid_ = std::vector<uint8_t>(data, data + len);
}

const std::vector<uint8_t> DUID::getDuid() const {
    return (duid_);
}

DUID::DUIDType DUID::getType() const {
    if (duid_.size() < 2) {
        return (DUID_UNKNOWN);
    }
    uint16_t type = (duid_[0] << 8) + duid_[1];
    if (type < DUID_MAX) {
        return (static_cast<DUID::DUIDType>(type));
    } else {
        return (DUID_UNKNOWN);
    }
}

bool DUID::operator == (const DUID& other) const {
    return (this->duid_ == other.duid_);
}

bool DUID::operator != (const DUID& other) const {
    return (this->duid_ != other.duid_);
}

/// constructor based on vector<uint8_t>
ClientId::ClientId(const std::vector<uint8_t>& clientid)
    :DUID(clientid) {
}

/// constructor based on C-style data
ClientId::ClientId(const uint8_t *clientid, size_t len)
    :DUID(clientid, len) {
}

/// @brief returns a copy of client-id data
const std::vector<uint8_t> ClientId::getClientId() const {
    return (duid_);
}

// compares two client-ids
bool ClientId::operator == (const ClientId& other) const {
    return (this->duid_ == other.duid_);
}

// compares two client-ids
bool ClientId::operator != (const ClientId& other) const {
    return (this->duid_ != other.duid_);
}

}; // end of isc::dhcp namespace
}; // end of isc namespace