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Annotation of 43BSD/etc/XNSrouted/trace.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)trace.h     5.4 (Berkeley) 9/17/85";
                      7:  *
                      8:  * Includes material written at Cornell University by Bill Nesheim,
                      9:  * by permission of the author.
                     10:  */
                     11: 
                     12: /*
                     13:  * Xerox Routing Information Protocol.
                     14:  */
                     15: 
                     16: /*
                     17:  * Trace record format.
                     18:  */
                     19: struct iftrace {
                     20:        time_t  ift_stamp;              /* time stamp */
                     21:        struct  sockaddr ift_who;       /* from/to */
                     22:        char    *ift_packet;            /* pointer to packet */
                     23:        short   ift_size;               /* size of packet */
                     24:        short   ift_metric;             /* metric  */
                     25: };
                     26: 
                     27: /*
                     28:  * Per interface packet tracing buffers.  An incoming and
                     29:  * outgoing circular buffer of packets is maintained, per
                     30:  * interface, for debugging.  Buffers are dumped whenever
                     31:  * an interface is marked down.
                     32:  */
                     33: struct ifdebug {
                     34:        struct  iftrace *ifd_records;   /* array of trace records */
                     35:        struct  iftrace *ifd_front;     /* next empty trace record */
                     36:        int     ifd_count;              /* number of unprinted records */
                     37:        struct  interface *ifd_if;      /* for locating stuff */
                     38: };
                     39: 
                     40: /*
                     41:  * Packet tracing stuff.
                     42:  */
                     43: int    tracepackets;           /* watch packets as they go by */
                     44: int    tracing;                /* on/off */
                     45: FILE   *ftrace;                /* output trace file */
                     46: 
                     47: #define        TRACE_ACTION(action, route) { \
                     48:          if (tracing) \
                     49:                traceaction(ftrace, "action", route); \
                     50:        }
                     51: #define        TRACE_INPUT(ifp, src, size) { \
                     52:          if (tracing) { \
                     53:                ifp = if_iflookup(src); \
                     54:                if (ifp) \
                     55:                        trace(&ifp->int_input, src, &packet[sizeof(struct idp)], size, \
                     56:                                ntohl(ifp->int_metric)); \
                     57:          } \
                     58:          if (tracepackets && ftrace) \
                     59:                dumppacket(ftrace, "from", src, &packet[sizeof(struct idp)], size); \
                     60:        }
                     61: #define        TRACE_OUTPUT(ifp, dst, size) { \
                     62:          if (tracing) { \
                     63:                ifp = if_iflookup(dst); \
                     64:                if (ifp) \
                     65:                    trace(&ifp->int_output, dst, &packet[sizeof(struct idp)], size, ifp->int_metric); \
                     66:          } \
                     67:          if (tracepackets && ftrace) \
                     68:                dumppacket(ftrace, "to", dst, &packet[sizeof(struct idp)], size); \
                     69:        }

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