autoip.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
/*
 * Doxygen note: AutoIP is an option set in the configuration system for each interface, so no
 * functions are used by the application and they do not need to be documented. The previous
 * documentation is copied below for historical reference.
 */
 
#ifndef _AUTOIP_H_INC
#define _AUTOIP_H_INC
 
#include <buffers.h>
#include <nettimer.h>
 
#define PROBE_WAIT 1
#define PROBE_NUM 3
#define PROBE_MIN 1
#define PROBE_MAX 2
#define ANNOUNCE_WAIT 2
#define ANNOUNCE_NUM 2
#define ANNOUNCE_INTERVAL 2
#define MAX_CONFLICTS 10
#define RATE_LIMIT_INTERVAL 60
#define DEFEND_INTERVAL 10
 
#define BASE_AUTO_IP 0xA9FE0100
 
#define AUTO_IP_INIT 1
#define AUTO_IP_NEGOTIATING 2
#define AUTO_IP_CONFIGURED 3
#define AUTO_IP_STOPPED 4
#define AUTO_IP_STARTARP 5
#define AUTO_IP_ARPCHECKING 6
#define AUTO_IP_ANNOUNCING 7
#define AUTO_IP_CONFLICT 8
#define AUTO_IP_DISABLED 9
 
#define NOSCHEDULE_TICK 0
 
class InterfaceBlock;
 
class AutoIPClient : public TimeOutElement
{
   private:
    InterfaceBlock *pIfb;
    int AutoIPState;
    IPADDR4 last_try;
 
    unsigned long nextTick;
    int probeCount;
    int announceCount;
    int conflicts;
    bool collision;
 
    AutoIPClient *nextIPC;
 
    void addressCollision();
    IPADDR4 generateNewIPAddr();
    void negotiate();
    void startArp();
    void arpCheck();
    void announce();
    void tickDelay(uint16_t delay);
 
    virtual void TimeElementEvent();
 
   public:
    AutoIPClient(InterfaceBlock *ib);
    ~AutoIPClient();
    void start();
    void stop();
    void disable();
    void enable();
    void restart();
    int getState();
    friend void processArp(PoolPtr p, PEFRAME pF);
    IPADDR4 cur_val();
    void LinkNotify(bool bLink);
};
 
AutoIPClient *AddAutoIPInterface(int InterfaceNumber = 0);
 
#endif /* ----- #ifndef _AUTOIP_H_INC  ----- */