/*
 * Copyright 2003-2004, Haiku Inc.
 * Distributed under the terms of the MIT License.
 */

#ifndef _K_PPP_CONFIGURE_PACKET__H
#define _K_PPP_CONFIGURE_PACKET__H

#include <TemplateList.h>
#include <net_buffer.h>

//!     An abstract configure item.
typedef struct ppp_configure_item {
        uint8 type;
                //!< Item's type.
        uint8 length;
                //!< Item length (including appended data, if any).
        uint8 data[0];
                //!< Additional data may be appended to this structure.
} ppp_configure_item;


class KPPPConfigurePacket {
        private:
                // copies are not allowed!
                KPPPConfigurePacket(const KPPPConfigurePacket& copy);
                KPPPConfigurePacket& operator= (const KPPPConfigurePacket& copy);

        public:
                KPPPConfigurePacket(uint8 code);
                KPPPConfigurePacket(net_buffer *packet);
                ~KPPPConfigurePacket();
                
                bool SetCode(uint8 code);
                //!     Returns this packet's code value.
                uint8 Code() const
                        { return fCode; }
                
                //!     Sets the packet's (unique) ID. Use KPPPLCP::NextID() to get a unique ID.
                void SetID(uint8 id)
                        { fID = id; }
                //!     Returns this packet's ID.
                uint8 ID() const
                        { return fID; }
                
                bool AddItem(const ppp_configure_item *item, int32 index = -1);
                bool RemoveItem(ppp_configure_item *item);
                //!     Returns number of items in this packet.
                int32 CountItems() const
                        { return fItems.CountItems(); }
                ppp_configure_item *ItemAt(int32 index) const;
                ppp_configure_item *ItemWithType(uint8 type) const;
                
                net_buffer *ToNetBuffer(uint32 MRU);
                        // the user is responsible for freeing the net_buffer

        private:
                uint8 fCode, fID;
                TemplateList<ppp_configure_item*> fItems;
};


#endif