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Annotation of 43BSDReno/sbin/routed/trace.h, revision 1.1.1.1

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: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  *
                     19:  *     @(#)trace.h     5.8 (Berkeley) 6/1/90
                     20:  */
                     21: 
                     22: /*
                     23:  * Routing table management daemon.
                     24:  */
                     25: 
                     26: /*
                     27:  * Trace record format.
                     28:  */
                     29: struct iftrace {
                     30:        struct  timeval ift_stamp;      /* time stamp */
                     31:        struct  sockaddr ift_who;       /* from/to */
                     32:        char    *ift_packet;            /* pointer to packet */
                     33:        short   ift_size;               /* size of packet */
                     34:        short   ift_metric;             /* metric on associated metric */
                     35: };
                     36: 
                     37: /*
                     38:  * Per interface packet tracing buffers.  An incoming and
                     39:  * outgoing circular buffer of packets is maintained, per
                     40:  * interface, for debugging.  Buffers are dumped whenever
                     41:  * an interface is marked down.
                     42:  */
                     43: struct ifdebug {
                     44:        struct  iftrace *ifd_records;   /* array of trace records */
                     45:        struct  iftrace *ifd_front;     /* next empty trace record */
                     46:        int     ifd_count;              /* number of unprinted records */
                     47:        struct  interface *ifd_if;      /* for locating stuff */
                     48: };
                     49: 
                     50: /*
                     51:  * Packet tracing stuff.
                     52:  */
                     53: int    tracepackets;           /* watch packets as they go by */
                     54: int    tracecontents;          /* watch packet contents as they go by */
                     55: int    traceactions;           /* on/off */
                     56: int    tracehistory;           /* on/off */
                     57: FILE   *ftrace;                /* output trace file */
                     58: 
                     59: #define        TRACE_ACTION(action, route) { \
                     60:          if (traceactions) \
                     61:                traceaction(ftrace, action, route); \
                     62:        }
                     63: #define        TRACE_NEWMETRIC(route, newmetric) { \
                     64:          if (traceactions) \
                     65:                tracenewmetric(ftrace, route, newmetric); \
                     66:        }
                     67: #define        TRACE_INPUT(ifp, src, pack, size) { \
                     68:          if (tracehistory) { \
                     69:                ifp = if_iflookup(src); \
                     70:                if (ifp) \
                     71:                        trace(&ifp->int_input, src, pack, size, \
                     72:                                ntohl(ifp->int_metric)); \
                     73:          } \
                     74:          if (tracepackets) \
                     75:                dumppacket(ftrace, "from", src, pack, size, &now); \
                     76:        }
                     77: #define        TRACE_OUTPUT(ifp, dst, size) { \
                     78:          if (tracehistory && ifp) \
                     79:                trace(&ifp->int_output, dst, packet, size, ifp->int_metric); \
                     80:          if (tracepackets) \
                     81:                dumppacket(ftrace, "to", dst, packet, size, &now); \
                     82:        }

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