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Annotation of 42BSD/etc/routed/trace.h, revision 1.1

1.1     ! root        1: /*     trace.h 4.3     83/05/25        */
        !             2: 
        !             3: /*
        !             4:  * Routing table management daemon.
        !             5:  */
        !             6: 
        !             7: /*
        !             8:  * Trace record format.
        !             9:  */
        !            10: struct iftrace {
        !            11:        time_t  ift_stamp;              /* time stamp */
        !            12:        struct  sockaddr ift_who;       /* from/to */
        !            13:        char    *ift_packet;            /* pointer to packet */
        !            14:        short   ift_size;               /* size of packet */
        !            15:        short   ift_metric;             /* metric on associated metric */
        !            16: };
        !            17: 
        !            18: /*
        !            19:  * Per interface packet tracing buffers.  An incoming and
        !            20:  * outgoing circular buffer of packets is maintained, per
        !            21:  * interface, for debugging.  Buffers are dumped whenever
        !            22:  * an interface is marked down.
        !            23:  */
        !            24: struct ifdebug {
        !            25:        struct  iftrace *ifd_records;   /* array of trace records */
        !            26:        struct  iftrace *ifd_front;     /* next empty trace record */
        !            27:        struct  interface *ifd_if;      /* for locating stuff */
        !            28: };
        !            29: 
        !            30: /*
        !            31:  * Packet tracing stuff.
        !            32:  */
        !            33: int    tracepackets;           /* watch packets as they go by */
        !            34: int    tracing;                /* on/off */
        !            35: FILE   *ftrace;                /* output trace file */
        !            36: 
        !            37: #define        TRACE_ACTION(action, route) { \
        !            38:          if (tracing) \
        !            39:                traceaction(ftrace, "action", route); \
        !            40:        }
        !            41: #define        TRACE_INPUT(ifp, src, size) { \
        !            42:          if (tracing) { \
        !            43:                ifp = if_iflookup(src); \
        !            44:                if (ifp) \
        !            45:                        trace(&ifp->int_input, src, packet, size, \
        !            46:                                ntohl(ifp->int_metric)); \
        !            47:          } \
        !            48:          if (tracepackets) \
        !            49:                dumppacket(stdout, "from", src, packet, size); \
        !            50:        }
        !            51: #define        TRACE_OUTPUT(ifp, dst, size) { \
        !            52:          if (tracing) \
        !            53:                trace(&ifp->int_output, dst, packet, size, ifp->int_metric); \
        !            54:          if (tracepackets) \
        !            55:                dumppacket(stdout, "to", dst, packet, size); \
        !            56:        }

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