source: heimdal/trunk/tools/kdc-log-analyze.pl@ 4

Last change on this file since 4 was 1, checked in by Paul Smedley, 10 years ago

Initial commit of Heimdal 1.5.3

File size: 15.4 KB
Line 
1#! /usr/pkg/bin/perl
2# -*- mode: perl; perl-indent-level: 8 -*-
3#
4# Copyright (c) 2003 Kungliga Tekniska Högskolan
5# (Royal Institute of Technology, Stockholm, Sweden).
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11#
12# 1. Redistributions of source code must retain the above copyright
13# notice, this list of conditions and the following disclaimer.
14#
15# 2. Redistributions in binary form must reproduce the above copyright
16# notice, this list of conditions and the following disclaimer in the
17# documentation and/or other materials provided with the distribution.
18#
19# 3. Neither the name of the Institute nor the names of its contributors
20# may be used to endorse or promote products derived from this software
21# without specific prior written permission.
22#
23# THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26# ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33# SUCH DAMAGE.
34#
35# $Id$
36#
37# kdc-log-analyze - Analyze a KDC log file and give a report on the contents
38#
39# Note: The parts you want likely want to customize are the variable $notlocal,
40# the array @local_network_re and the array @local_realms.
41#
42# Idea and implemetion for MIT Kerberos was done first by
43# Ken Hornstein <kenh@cmf.nrl.navy.mil>, this program wouldn't exists
44# without his help.
45#
46
47use strict;
48use Sys::Hostname;
49
50my $notlocal = 'not SU';
51my @local_realms = ( "SU.SE" );
52my @local_networks_re =
53 (
54 "130\.237",
55 "193\.11\.3[0-9]\.",
56 "130.242.128",
57 "2001:6b0:5:"
58 );
59
60my $as_req = 0;
61my %as_req_addr;
62my %as_req_addr_nonlocal;
63my %as_req_client;
64my %as_req_server;
65my %addr_uses_des;
66my %princ_uses_des;
67my $five24_req = 0;
68my %five24_req_addr;
69my %five24_req_addr_nonlocal;
70my %five24_req_server;
71my %five24_req_client;
72my $as_req_successful = 0;
73my $as_req_error = 0;
74my $no_such_princ = 0;
75my %no_such_princ_princ;
76my %no_such_princ_addr;
77my %no_such_princ_addr_nonlocal;
78my $as_req_etype_odd = 0;
79my %bw_addr;
80my $pa_alt_princ_request = 0;
81my $pa_alt_princ_verify = 0;
82my $tgs_req = 0;
83my %tgs_req_addr;
84my %tgs_req_addr_nonlocal;
85my %tgs_req_client;
86my %tgs_req_server;
87my $tgs_xrealm_out = 0;
88my %tgs_xrealm_out_realm;
89my %tgs_xrealm_out_princ;
90my $tgs_xrealm_in = 0;
91my %tgs_xrealm_in_realm;
92my %tgs_xrealm_in_princ;
93my %enctype_session;
94my %enctype_ticket;
95my $restarts = 0;
96my $forward_non_forward = 0;
97my $v4_req = 0;
98my %v4_req_addr;
99my %v4_req_addr_nonlocal;
100my $v4_cross = 0;
101my %v4_cross_realm;
102my $v5_cross = 0;
103my %v5_cross_realm;
104my $referrals = 0;
105my %referral_princ;
106my %referral_realm;
107my %strange_tcp_data;
108my $http_malformed = 0;
109my %http_malformed_addr;
110my $http_non_kdc = 0;
111my %http_non_kdc_addr;
112my $tcp_conn_timeout = 0;
113my %tcp_conn_timeout_addr;
114my $failed_processing = 0;
115my %failed_processing_addr;
116my $connection_closed = 0;
117my %connection_closed_addr;
118my $pa_failed = 0;
119my %pa_failed_princ;
120my %pa_failed_addr;
121my %ip;
122
123$ip{'4'} = $ip{'6'} = 0;
124
125while (<>) {
126 process_line($_);
127}
128
129print "Kerberos KDC Log Report for ",
130 hostname, " on ", scalar localtime, "\n\n";
131
132print "General Statistics\n\n";
133
134print "\tNumber of IPv4 requests: $ip{'4'}\n";
135print "\tNumber of IPv6 requests: $ip{'6'}\n\n";
136
137print "\tNumber of restarts: $restarts\n";
138print "\tNumber of V4 requests: $v4_req\n";
139if ($v4_req > 0) {
140 print "\tTop ten IP addresses performing V4 requests:\n";
141 topten(\%v4_req_addr);
142}
143if (int(keys %v4_req_addr_nonlocal) > 0) {
144 print "\tTop ten $notlocal IP addresses performing V4 requests:\n";
145 topten(\%v4_req_addr_nonlocal);
146
147}
148print "\n";
149
150print "\tNumber of V4 cross realms (krb4 and 524) requests: $v4_cross\n";
151if ($v4_cross > 0) {
152 print "\tTop ten realms performing V4 cross requests:\n";
153 topten(\%v4_cross_realm);
154}
155print "\n";
156
157print "\tNumber of V45 cross realms requests: $v5_cross\n";
158if ($v5_cross > 0) {
159 print "\tTop ten realms performing V4 cross requests:\n";
160 topten(\%v5_cross_realm);
161}
162print "\n";
163
164print "\tNumber of failed lookups: $no_such_princ\n";
165if ($no_such_princ > 0) {
166 print "\tTop ten IP addresses failing to find principal:\n";
167 topten(\%no_such_princ_addr);
168 print "\tTop ten $notlocal IP addresses failing find principal:\n";
169 topten(\%no_such_princ_addr_nonlocal);
170 print "\tTop ten failed to find principals\n";
171 topten(\%no_such_princ_princ);
172}
173print "\n";
174
175print "\tBandwidth pigs:\n";
176topten(\%bw_addr);
177print "\n";
178
179print "\tStrange TCP data clients: ", int(keys %strange_tcp_data),"\n";
180topten(\%strange_tcp_data);
181print "\n";
182
183print "\tTimeout waiting on TCP requests: ", $tcp_conn_timeout,"\n";
184if ($tcp_conn_timeout > 0) {
185 print "\tTop ten TCP timeout request clients\n";
186 topten(\%tcp_conn_timeout_addr);
187}
188print "\n";
189
190print "\tFailed processing requests: ", $failed_processing,"\n";
191if ($failed_processing > 0) {
192 print "\tTop ten failed processing request clients\n";
193 topten(\%failed_processing_addr);
194}
195print "\n";
196
197print "\tConnection closed requests: ", $connection_closed,"\n";
198if ($connection_closed > 0) {
199 print "\tTop ten connection closed request clients\n";
200 topten(\%connection_closed_addr);
201}
202print "\n";
203
204print "\tMalformed HTTP requests: ", $http_malformed,"\n";
205if ($http_malformed > 0) {
206 print "\tTop ten malformed HTTP request clients\n";
207 topten(\%http_malformed_addr);
208}
209print "\n";
210
211print "\tHTTP non kdc requests: ", $http_non_kdc,"\n";
212if ($http_non_kdc > 0) {
213 print "\tTop ten HTTP non KDC request clients\n";
214 topten(\%http_non_kdc_addr);
215}
216print "\n";
217
218print "Report on AS_REQ requests\n\n";
219print "Overall AS_REQ statistics\n\n";
220
221print "\tTotal number: $as_req\n";
222
223print "\nAS_REQ client/server statistics\n\n";
224
225print "\tDistinct IP Addresses performing requests: ",
226 int(keys %as_req_addr),"\n";
227print "\tOverall top ten IP addresses\n";
228topten(\%as_req_addr);
229
230print "\tDistinct non-local ($notlocal) IP Addresses performing requests: ",
231 int(keys %as_req_addr_nonlocal), "\n";
232print "\tTop ten non-local ($notlocal) IP address:\n";
233topten(\%as_req_addr_nonlocal);
234
235print "\n\tPreauth failed for for: ", $pa_failed, " requests\n";
236if ($pa_failed) {
237 print "\tPreauth failed top ten IP addresses:\n";
238 topten(\%pa_failed_addr);
239 print "\tPreauth failed top ten principals:\n";
240 topten(\%pa_failed_princ);
241}
242
243print "\n\tDistinct clients performing requests: ",
244 int(keys %as_req_client), "\n";
245print "\tTop ten clients:\n";
246topten(\%as_req_client);
247
248print "\tDistinct services requested: ", int(keys %as_req_server), "\n";
249print "\tTop ten requested services:\n";
250topten(\%as_req_server);
251
252print "\n\n\nReport on TGS_REQ requests:\n\n";
253print "Overall TGS_REQ statistics\n\n";
254print "\tTotal number: $tgs_req\n";
255
256print "\nTGS_REQ client/server statistics\n\n";
257print "\tDistinct IP addresses performing requests: ",
258 int(keys %tgs_req_addr), "\n";
259print "\tOverall top ten IP addresses\n";
260topten(\%tgs_req_addr);
261
262print "\tDistinct non-local ($notlocal) IP Addresses performing requests: ",
263 int(keys %tgs_req_addr_nonlocal), "\n";
264print "\tTop ten non-local ($notlocal) IP address:\n";
265topten(\%tgs_req_addr_nonlocal);
266
267print "\tDistinct clients performing requests: ",
268 int(keys %tgs_req_client), "\n";
269print "\tTop ten clients:\n";
270topten(\%tgs_req_client);
271
272print "\tDistinct services requested: ", int(keys %tgs_req_server), "\n";
273print "\tTop ten requested services:\n";
274topten(\%tgs_req_server);
275
276print "\n\n\nReport on 524_REQ requests:\n\n";
277
278print "\t524_REQ client/server statistics\n\n";
279
280print "\tDistinct IP Addresses performing requests: ",
281 int(keys %five24_req_addr),"\n";
282print "\tOverall top ten IP addresses\n";
283topten(\%five24_req_addr);
284
285print "\tDistinct non-local ($notlocal) IP Addresses performing requests: ",
286 int(keys %five24_req_addr_nonlocal), "\n";
287print "\tTop ten non-local ($notlocal) IP address:\n";
288topten(\%five24_req_addr_nonlocal);
289
290print "\tDistinct clients performing requests: ", int(keys %five24_req_client), "\n";
291print "\tTop ten clients:\n";
292topten(\%five24_req_client);
293
294print "\tDistinct services requested: ", int(keys %five24_req_server), "\n";
295print "\tTop ten requested services:\n";
296topten(\%five24_req_server);
297print "\n";
298
299print "Cross realm statistics\n\n";
300
301print "\tNumber of cross-realm tgs out: $tgs_xrealm_out\n";
302if ($tgs_xrealm_out > 0) {
303 print "\tTop ten realms used for out cross-realm:\n";
304 topten(\%tgs_xrealm_out_realm);
305 print "\tTop ten principals use out cross-realm:\n";
306 topten(\%tgs_xrealm_out_princ);
307}
308print "\tNumber of cross-realm tgs in: $tgs_xrealm_in\n";
309if ($tgs_xrealm_in > 0) {
310 print "\tTop ten realms used for in cross-realm:\n";
311 topten(\%tgs_xrealm_in_realm);
312 print "\tTop ten principals use in cross-realm:\n";
313 topten(\%tgs_xrealm_in_princ);
314}
315
316print "\n\nReport on referral:\n\n";
317
318print "\tNumber of referrals: $referrals\n";
319if ($referrals > 0) {
320 print "\tTop ten referral-ed principals:\n";
321 topten(\%referral_princ);
322 print "\tTop ten to realm referrals:\n";
323 topten(\%referral_realm);
324}
325
326print "\n\nEnctype Statistics:\n\n";
327print "\tTop ten session enctypes:\n";
328topten(\%enctype_session);
329print "\tTop ten ticket enctypes:\n";
330topten(\%enctype_ticket);
331
332print "\tDistinct IP addresses using DES: ", int(keys %addr_uses_des), "\n";
333print "\tTop IP addresses using DES:\n";
334topten(\%addr_uses_des);
335print "\tDistinct principals using DES: ", int(keys %princ_uses_des), "\n";
336print "\tTop ten principals using DES:\n";
337topten(\%princ_uses_des);
338
339print "\n";
340
341printf("Requests to forward non-forwardable ticket: $forward_non_forward\n");
342
343
344exit 0;
345
346my $last_addr = "";
347my $last_principal = "";
348
349sub process_line {
350 local($_) = @_;
351 #
352 # Eat these lines that are output as a result of startup (but
353 # log the number of restarts)
354 #
355 if (/AS-REQ \(krb4\) (.*) from IPv([46]):([0-9\.:a-fA-F]+) for krbtgt.*$/){
356 $v4_req++;
357 $v4_req_addr{$3}++;
358 $v4_req_addr_nonlocal{$3}++ if (!islocaladdr($3));
359 $last_addr = $3;
360 $last_principal = $1;
361 $ip{$2}++;
362 } elsif (/AS-REQ (.*) from IPv([46]):([0-9\.:a-fA-F]+) for (.*)$/) {
363 $as_req++;
364 $as_req_client{$1}++;
365 $as_req_server{$4}++;
366 $as_req_addr{$3}++;
367 $as_req_addr_nonlocal{$3}++ if (!islocaladdr($3));
368 $last_addr = $3;
369 $last_principal = $1;
370 $ip{$2}++;
371 } elsif (/TGS-REQ \(krb4\)/) {
372 #Nothing
373 } elsif (/TGS-REQ (.+) from IPv([46]):([0-9\.:a-fA-F]+) for (.*?)( \[.*\]){0,1}$/) {
374 $tgs_req++;
375 $tgs_req_client{$1}++;
376 $tgs_req_server{$4}++;
377 $tgs_req_addr{$3}++;
378 $tgs_req_addr_nonlocal{$3}++ if (!islocaladdr($3));
379 $last_addr = $3;
380 $last_principal = $1;
381 $ip{$2}++;
382
383 my $source = $1;
384 my $dest = $4;
385
386 if (!islocalrealm($source)) {
387 $tgs_xrealm_in++;
388 $tgs_xrealm_in_princ{$source}++;
389 if ($source =~ /[^@]+@([^@]+)/ ) {
390 $tgs_xrealm_in_realm{$1}++;
391 }
392 }
393 if ($dest =~ /krbtgt\/([^@]+)@[^@]+/) {
394 if (!islocalrealm($1)) {
395 $tgs_xrealm_out++;
396 $tgs_xrealm_out_realm{$1}++;
397 $tgs_xrealm_out_princ{$source}++;
398 }
399 }
400 } elsif (/524-REQ (.*) from IPv([46]):([0-9\.:a-fA-F]+) for (.*)$/) {
401 $five24_req++;
402 $five24_req_client{$1}++;
403 $five24_req_server{$4}++;
404 $five24_req_addr{$3}++;
405 $five24_req_addr_nonlocal{$3}++ if (!islocaladdr($3));
406 $last_addr = $3;
407 $last_principal = $1;
408 $ip{$2}++;
409 } elsif (/TCP data of strange type from IPv[46]:([0-9\.:a-fA-F]+)/) {
410 $strange_tcp_data{$1}++;
411 } elsif (/Lookup (.*) failed: No such entry in the database/) {
412 $no_such_princ++;
413 $no_such_princ_addr{$last_addr}++;
414 $no_such_princ_addr_nonlocal{$last_addr}++ if (!islocaladdr($last_addr));
415 $no_such_princ_princ{$1}++;
416 } elsif (/Lookup .* succeeded$/) {
417 # Nothing
418 } elsif (/Malformed HTTP request from IPv[46]:([0-9\.:a-fA-F]+)$/) {
419 $http_malformed++;
420 $http_malformed_addr{$1}++;
421 } elsif (/TCP-connection from IPv[46]:([0-9\.:a-fA-F]+) expired after [0-9]+ bytes/) {
422 $tcp_conn_timeout++;
423 $tcp_conn_timeout_addr{$1}++;
424 } elsif (/Failed processing [0-9]+ byte request from IPv[46]:([0-9\.:a-fA-F]+)/) {
425 $failed_processing++;
426 $failed_processing_addr{$1}++;
427 } elsif (/connection closed before end of data after [0-9]+ bytes from IPv[46]:([0-9\.:a-fA-F]+)/) {
428 $connection_closed++;
429 $connection_closed_addr{$1}++;
430 } elsif (/HTTP request from IPv[46]:([0-9\.:a-fA-F]+) is non KDC request/) {
431 $http_non_kdc++;
432 $http_non_kdc_addr{$1}++;
433 } elsif (/returning a referral to realm (.*) for server (.*) that was not found/) {
434 $referrals++;
435 $referral_princ{$2}++;
436 $referral_realm{$1}++;
437 } elsif (/krb4 Cross-realm (.*) -> (.*) disabled/) {
438 $v4_cross++;
439 $v4_cross_realm{$1."->".$2}++;
440 } elsif (/524 cross-realm (.*) -> (.*) disabled/) {
441 $v4_cross++;
442 $v4_cross_realm{$1."->".$2}++;
443 } elsif (/cross-realm (.*) -> (.*): no transit through realm (.*)/) {
444 } elsif (/cross-realm (.*) -> (.*) via \[([^\]]+)\]/) {
445 $v5_cross++;
446 $v5_cross_realm{$1."->".$2}++;
447 } elsif (/cross-realm (.*) -> (.*)/) {
448 $v5_cross++;
449 $v5_cross_realm{$1."->".$2}++;
450 } elsif (/sending ([0-9]+) bytes to IPv[46]:([0-9\.:a-fA-F]+)/) {
451 $bw_addr{$2} += $1;
452 } elsif (/Using ([-a-z0-9]+)\/([-a-z0-9]+)/) {
453 $enctype_ticket{$1}++;
454 $enctype_session{$2}++;
455
456 my $ticket = $1;
457 my $session = $2;
458
459 if ($ticket =~ /des-cbc-(crc|md4|md5)/) {
460 $addr_uses_des{$last_addr}++;
461 $princ_uses_des{$last_principal}++;
462 }
463
464 } elsif (/Failed to decrypt PA-DATA -- (.+)$/) {
465 $pa_failed++;
466 $pa_failed_princ{$last_principal}++;
467 $pa_failed_addr{$last_addr}++;
468
469 } elsif (/Request to forward non-forwardable ticket/) {
470 $forward_non_forward++;
471 } elsif (/HTTP request:/) {
472 } elsif (/krb_rd_req: Incorrect network address/) {
473 } elsif (/krb_rd_req: Ticket expired \(krb_rd_req\)/) {
474 } elsif (/Ticket expired \(.*\)/) {
475 } elsif (/krb_rd_req: Can't decode authenticator \(krb_rd_req\)/) {
476 } elsif (/Request from wrong address/) {
477 # XXX
478 } elsif (/UNKNOWN --/) {
479 # XXX
480 } elsif (/Too large time skew -- (.*)$/) {
481 # XXX
482 } elsif (/No PA-ENC-TIMESTAMP --/) {
483 # XXX
484 } elsif (/Looking for pa-data --/) {
485 # XXX
486 } elsif (/Pre-authentication succeded -- (.+)$/) {
487 # XXX
488 } elsif (/Bad request for ([,a-zA-Z0-9]+) ticket/) {
489 # XXX
490 } elsif (/Failed to verify AP-REQ: Ticket expired/) {
491 # XXX
492 } elsif (/Client not found in database:/) {
493 # XXX
494 } elsif (/Server not found in database \(krb4\)/) {
495 } elsif (/Server not found in database:/) {
496 # XXX
497 } elsif (/newsyslog.*logfile turned over/) {
498 # Nothing
499 } elsif (/Requested flags:/) {
500 # Nothing
501 } elsif (/shutting down/) {
502 # Nothing
503 } elsif (/listening on IP/) {
504 # Nothing
505 } elsif (/commencing operation/) {
506 $restarts++;
507 }
508 #
509 # Log it if we didn't parse the line
510 #
511 else {
512 print "Unknown log file line: $_";
513 }
514}
515
516sub topten {
517 my ($list) = @_;
518 my @keys;
519
520 my $key;
521
522 @keys = (sort {$$list{$b} <=> $$list{$a}} (keys %{$list}));
523 splice @keys, 10;
524
525 foreach $key (@keys) {
526 print "\t\t$key - $$list{$key}\n";
527 }
528}
529
530sub islocaladdr (\$) {
531 my ($addr) = @_;
532 my $net;
533
534 foreach $net (@local_networks_re) {
535 return 1 if ($addr =~ /$net/);
536 }
537 return 0;
538}
539
540sub islocalrealm (\$) {
541 my ($princ) = @_;
542 my $realm;
543
544 foreach $realm (@local_realms) {
545 return 1 if ($princ eq $realm);
546 return 1 if ($princ =~ /[^@]+\@${realm}/);
547 }
548 return 0;
549}
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