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Annotation of 43BSDTahoe/etc/routed/trace.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983, 1988 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that this notice is preserved and that due credit is given
        !             7:  * to the University of California at Berkeley. The name of the University
        !             8:  * may not be used to endorse or promote products derived from this
        !             9:  * software without specific prior written permission. This software
        !            10:  * is provided ``as is'' without express or implied warranty.
        !            11:  *
        !            12:  *     @(#)trace.h     5.4 (Berkeley) 5/31/88
        !            13:  */
        !            14: 
        !            15: /*
        !            16:  * Routing table management daemon.
        !            17:  */
        !            18: 
        !            19: /*
        !            20:  * Trace record format.
        !            21:  */
        !            22: struct iftrace {
        !            23:        time_t  ift_stamp;              /* time stamp */
        !            24:        struct  sockaddr ift_who;       /* from/to */
        !            25:        char    *ift_packet;            /* pointer to packet */
        !            26:        short   ift_size;               /* size of packet */
        !            27:        short   ift_metric;             /* metric on associated metric */
        !            28: };
        !            29: 
        !            30: /*
        !            31:  * Per interface packet tracing buffers.  An incoming and
        !            32:  * outgoing circular buffer of packets is maintained, per
        !            33:  * interface, for debugging.  Buffers are dumped whenever
        !            34:  * an interface is marked down.
        !            35:  */
        !            36: struct ifdebug {
        !            37:        struct  iftrace *ifd_records;   /* array of trace records */
        !            38:        struct  iftrace *ifd_front;     /* next empty trace record */
        !            39:        int     ifd_count;              /* number of unprinted records */
        !            40:        struct  interface *ifd_if;      /* for locating stuff */
        !            41: };
        !            42: 
        !            43: /*
        !            44:  * Packet tracing stuff.
        !            45:  */
        !            46: int    tracepackets;           /* watch packets as they go by */
        !            47: int    traceactions;           /* on/off */
        !            48: int    tracehistory;           /* on/off */
        !            49: FILE   *ftrace;                /* output trace file */
        !            50: char   *curtime;               /* current timestamp string */
        !            51: 
        !            52: #define        TRACE_ACTION(action, route) { \
        !            53:          if (traceactions) \
        !            54:                traceaction(ftrace, action, route); \
        !            55:        }
        !            56: #define        TRACE_NEWMETRIC(route, newmetric) { \
        !            57:          if (traceactions) \
        !            58:                tracenewmetric(ftrace, route, newmetric); \
        !            59:        }
        !            60: #define        TRACE_INPUT(ifp, src, size) { \
        !            61:          if (tracehistory) { \
        !            62:                ifp = if_iflookup(src); \
        !            63:                if (ifp) \
        !            64:                        trace(&ifp->int_input, src, packet, size, \
        !            65:                                ntohl(ifp->int_metric)); \
        !            66:          } \
        !            67:          if (tracepackets) { \
        !            68:                time_t t; \
        !            69:                t = time(0); \
        !            70:                dumppacket(stdout, "from", src, packet, size, &t); \
        !            71:          } \
        !            72:        }
        !            73: #define        TRACE_OUTPUT(ifp, dst, size) { \
        !            74:          if (tracehistory && ifp) \
        !            75:                trace(&ifp->int_output, dst, packet, size, ifp->int_metric); \
        !            76:          if (tracepackets) { \
        !            77:                time_t t; \
        !            78:                t = time(0); \
        !            79:                dumppacket(stdout, "to", dst, packet, size, &t); \
        !            80:          } \
        !            81:        }

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