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e69f81e0 | 1 | /* |
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2 | * Copyright (c) 1983 The Regents of the University of California. |
3 | * All rights reserved. | |
e69f81e0 | 4 | * |
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5 | * This file includes significant work done at Cornell University by |
6 | * Bill Nesheim. That work included by permission. | |
e69f81e0 | 7 | * |
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8 | * Redistribution and use in source and binary forms are permitted |
9 | * provided that the above copyright notice and this paragraph are | |
10 | * duplicated in all such forms and that any documentation, | |
11 | * advertising materials, and other materials related to such | |
12 | * distribution and use acknowledge that the software was developed | |
13 | * by the University of California, Berkeley. The name of the | |
14 | * University may not be used to endorse or promote products derived | |
15 | * from this software without specific prior written permission. | |
16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
17 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
18 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
19 | * | |
20 | * @(#)trace.h 5.5 (Berkeley) %G% | |
e69f81e0 | 21 | */ |
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22 | |
23 | /* | |
24 | * Xerox Routing Information Protocol. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Trace record format. | |
29 | */ | |
30 | struct iftrace { | |
31 | time_t ift_stamp; /* time stamp */ | |
32 | struct sockaddr ift_who; /* from/to */ | |
33 | char *ift_packet; /* pointer to packet */ | |
34 | short ift_size; /* size of packet */ | |
35 | short ift_metric; /* metric */ | |
36 | }; | |
37 | ||
38 | /* | |
39 | * Per interface packet tracing buffers. An incoming and | |
40 | * outgoing circular buffer of packets is maintained, per | |
41 | * interface, for debugging. Buffers are dumped whenever | |
42 | * an interface is marked down. | |
43 | */ | |
44 | struct ifdebug { | |
45 | struct iftrace *ifd_records; /* array of trace records */ | |
46 | struct iftrace *ifd_front; /* next empty trace record */ | |
47 | int ifd_count; /* number of unprinted records */ | |
48 | struct interface *ifd_if; /* for locating stuff */ | |
49 | }; | |
50 | ||
51 | /* | |
52 | * Packet tracing stuff. | |
53 | */ | |
54 | int tracepackets; /* watch packets as they go by */ | |
55 | int tracing; /* on/off */ | |
56 | FILE *ftrace; /* output trace file */ | |
57 | ||
58 | #define TRACE_ACTION(action, route) { \ | |
59 | if (tracing) \ | |
60 | traceaction(ftrace, "action", route); \ | |
61 | } | |
62 | #define TRACE_INPUT(ifp, src, size) { \ | |
63 | if (tracing) { \ | |
64 | ifp = if_iflookup(src); \ | |
65 | if (ifp) \ | |
66 | trace(&ifp->int_input, src, &packet[sizeof(struct idp)], size, \ | |
67 | ntohl(ifp->int_metric)); \ | |
68 | } \ | |
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69 | if (tracepackets && ftrace) \ |
70 | dumppacket(ftrace, "from", src, &packet[sizeof(struct idp)], size); \ | |
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71 | } |
72 | #define TRACE_OUTPUT(ifp, dst, size) { \ | |
73 | if (tracing) { \ | |
74 | ifp = if_iflookup(dst); \ | |
75 | if (ifp) \ | |
76 | trace(&ifp->int_output, dst, &packet[sizeof(struct idp)], size, ifp->int_metric); \ | |
77 | } \ | |
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78 | if (tracepackets && ftrace) \ |
79 | dumppacket(ftrace, "to", dst, &packet[sizeof(struct idp)], size); \ | |
42d71268 | 80 | } |