forked from the-tcpdump-group/tcpdump
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathprint-rx.c
2889 lines (2547 loc) · 63.6 KB
/
print-rx.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright: (c) 2000 United States Government as represented by the
* Secretary of the Navy. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* \summary: AFS RX printer */
/*
* This code unmangles RX packets. RX is the mutant form of RPC that AFS
* uses to communicate between clients and servers.
*
* In this code, I mainly concern myself with decoding the AFS calls, not
* with the guts of RX, per se.
*
* Bah. If I never look at rx_packet.h again, it will be too soon.
*
* Ken Hornstein <[email protected]>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "netdissect-stdinc.h"
#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"
#include "ip.h"
#define FS_RX_PORT 7000
#define CB_RX_PORT 7001
#define PROT_RX_PORT 7002
#define VLDB_RX_PORT 7003
#define KAUTH_RX_PORT 7004
#define VOL_RX_PORT 7005
#define ERROR_RX_PORT 7006 /* Doesn't seem to be used */
#define BOS_RX_PORT 7007
#define AFSOPAQUEMAX 1024
#define AFSNAMEMAX 256 /* Must be >= PRNAMEMAX + 1, VLNAMEMAX + 1, and 32 + 1 */
#define PRNAMEMAX 64
#define VLNAMEMAX 65
#define KANAMEMAX 64
#define BOSNAMEMAX 256
#define USERNAMEMAX 1024 /* AFSOPAQUEMAX was used for this; does it need to be this big? */
#define PRSFS_READ 1 /* Read files */
#define PRSFS_WRITE 2 /* Write files */
#define PRSFS_INSERT 4 /* Insert files into a directory */
#define PRSFS_LOOKUP 8 /* Lookup files into a directory */
#define PRSFS_DELETE 16 /* Delete files */
#define PRSFS_LOCK 32 /* Lock files */
#define PRSFS_ADMINISTER 64 /* Change ACL's */
struct rx_header {
nd_uint32_t epoch;
nd_uint32_t cid;
nd_uint32_t callNumber;
nd_uint32_t seq;
nd_uint32_t serial;
nd_uint8_t type;
#define RX_PACKET_TYPE_DATA 1
#define RX_PACKET_TYPE_ACK 2
#define RX_PACKET_TYPE_BUSY 3
#define RX_PACKET_TYPE_ABORT 4
#define RX_PACKET_TYPE_ACKALL 5
#define RX_PACKET_TYPE_CHALLENGE 6
#define RX_PACKET_TYPE_RESPONSE 7
#define RX_PACKET_TYPE_DEBUG 8
#define RX_PACKET_TYPE_PARAMS 9
#define RX_PACKET_TYPE_VERSION 13
nd_uint8_t flags;
#define RX_CLIENT_INITIATED 1
#define RX_REQUEST_ACK 2
#define RX_LAST_PACKET 4
#define RX_MORE_PACKETS 8
#define RX_FREE_PACKET 16
#define RX_SLOW_START_OK 32
#define RX_JUMBO_PACKET 32
nd_uint8_t userStatus;
nd_uint8_t securityIndex;
nd_uint16_t spare; /* How clever: even though the AFS */
nd_uint16_t serviceId; /* header files indicate that the */
}; /* serviceId is first, it's really */
/* encoded _after_ the spare field */
/* I wasted a day figuring that out! */
#define NUM_RX_FLAGS 7
#define RX_MAXACKS 255
struct rx_ackPacket {
nd_uint16_t bufferSpace; /* Number of packet buffers available */
nd_uint16_t maxSkew; /* Max diff between ack'd packet and */
/* highest packet received */
nd_uint32_t firstPacket; /* The first packet in ack list */
nd_uint32_t previousPacket; /* Previous packet recv'd (obsolete) */
nd_uint32_t serial; /* # of packet that prompted the ack */
nd_uint8_t reason; /* Reason for acknowledgement */
nd_uint8_t nAcks; /* Number of acknowledgements */
/* Followed by nAcks acknowledgments */
#if 0
uint8_t acks[RX_MAXACKS]; /* Up to RX_MAXACKS acknowledgements */
#endif
};
/*
* Values for the acks array
*/
#define RX_ACK_TYPE_NACK 0 /* Don't have this packet */
#define RX_ACK_TYPE_ACK 1 /* I have this packet */
static const struct tok rx_types[] = {
{ RX_PACKET_TYPE_DATA, "data" },
{ RX_PACKET_TYPE_ACK, "ack" },
{ RX_PACKET_TYPE_BUSY, "busy" },
{ RX_PACKET_TYPE_ABORT, "abort" },
{ RX_PACKET_TYPE_ACKALL, "ackall" },
{ RX_PACKET_TYPE_CHALLENGE, "challenge" },
{ RX_PACKET_TYPE_RESPONSE, "response" },
{ RX_PACKET_TYPE_DEBUG, "debug" },
{ RX_PACKET_TYPE_PARAMS, "params" },
{ RX_PACKET_TYPE_VERSION, "version" },
{ 0, NULL },
};
static const struct double_tok {
uint32_t flag; /* Rx flag */
uint32_t packetType; /* Packet type */
const char *s; /* Flag string */
} rx_flags[] = {
{ RX_CLIENT_INITIATED, 0, "client-init" },
{ RX_REQUEST_ACK, 0, "req-ack" },
{ RX_LAST_PACKET, 0, "last-pckt" },
{ RX_MORE_PACKETS, 0, "more-pckts" },
{ RX_FREE_PACKET, 0, "free-pckt" },
{ RX_SLOW_START_OK, RX_PACKET_TYPE_ACK, "slow-start" },
{ RX_JUMBO_PACKET, RX_PACKET_TYPE_DATA, "jumbogram" }
};
static const struct tok fs_req[] = {
{ 130, "fetch-data" },
{ 131, "fetch-acl" },
{ 132, "fetch-status" },
{ 133, "store-data" },
{ 134, "store-acl" },
{ 135, "store-status" },
{ 136, "remove-file" },
{ 137, "create-file" },
{ 138, "rename" },
{ 139, "symlink" },
{ 140, "link" },
{ 141, "makedir" },
{ 142, "rmdir" },
{ 143, "oldsetlock" },
{ 144, "oldextlock" },
{ 145, "oldrellock" },
{ 146, "get-stats" },
{ 147, "give-cbs" },
{ 148, "get-vlinfo" },
{ 149, "get-vlstats" },
{ 150, "set-vlstats" },
{ 151, "get-rootvl" },
{ 152, "check-token" },
{ 153, "get-time" },
{ 154, "nget-vlinfo" },
{ 155, "bulk-stat" },
{ 156, "setlock" },
{ 157, "extlock" },
{ 158, "rellock" },
{ 159, "xstat-ver" },
{ 160, "get-xstat" },
{ 161, "dfs-lookup" },
{ 162, "dfs-flushcps" },
{ 163, "dfs-symlink" },
{ 220, "residency" },
{ 65536, "inline-bulk-status" },
{ 65537, "fetch-data-64" },
{ 65538, "store-data-64" },
{ 65539, "give-up-all-cbs" },
{ 65540, "get-caps" },
{ 65541, "cb-rx-conn-addr" },
{ 0, NULL },
};
static const struct tok cb_req[] = {
{ 204, "callback" },
{ 205, "initcb" },
{ 206, "probe" },
{ 207, "getlock" },
{ 208, "getce" },
{ 209, "xstatver" },
{ 210, "getxstat" },
{ 211, "initcb2" },
{ 212, "whoareyou" },
{ 213, "initcb3" },
{ 214, "probeuuid" },
{ 215, "getsrvprefs" },
{ 216, "getcellservdb" },
{ 217, "getlocalcell" },
{ 218, "getcacheconf" },
{ 65536, "getce64" },
{ 65537, "getcellbynum" },
{ 65538, "tellmeaboutyourself" },
{ 0, NULL },
};
static const struct tok pt_req[] = {
{ 500, "new-user" },
{ 501, "where-is-it" },
{ 502, "dump-entry" },
{ 503, "add-to-group" },
{ 504, "name-to-id" },
{ 505, "id-to-name" },
{ 506, "delete" },
{ 507, "remove-from-group" },
{ 508, "get-cps" },
{ 509, "new-entry" },
{ 510, "list-max" },
{ 511, "set-max" },
{ 512, "list-entry" },
{ 513, "change-entry" },
{ 514, "list-elements" },
{ 515, "same-mbr-of" },
{ 516, "set-fld-sentry" },
{ 517, "list-owned" },
{ 518, "get-cps2" },
{ 519, "get-host-cps" },
{ 520, "update-entry" },
{ 521, "list-entries" },
{ 530, "list-super-groups" },
{ 0, NULL },
};
static const struct tok vldb_req[] = {
{ 501, "create-entry" },
{ 502, "delete-entry" },
{ 503, "get-entry-by-id" },
{ 504, "get-entry-by-name" },
{ 505, "get-new-volume-id" },
{ 506, "replace-entry" },
{ 507, "update-entry" },
{ 508, "setlock" },
{ 509, "releaselock" },
{ 510, "list-entry" },
{ 511, "list-attrib" },
{ 512, "linked-list" },
{ 513, "get-stats" },
{ 514, "probe" },
{ 515, "get-addrs" },
{ 516, "change-addr" },
{ 517, "create-entry-n" },
{ 518, "get-entry-by-id-n" },
{ 519, "get-entry-by-name-n" },
{ 520, "replace-entry-n" },
{ 521, "list-entry-n" },
{ 522, "list-attrib-n" },
{ 523, "linked-list-n" },
{ 524, "update-entry-by-name" },
{ 525, "create-entry-u" },
{ 526, "get-entry-by-id-u" },
{ 527, "get-entry-by-name-u" },
{ 528, "replace-entry-u" },
{ 529, "list-entry-u" },
{ 530, "list-attrib-u" },
{ 531, "linked-list-u" },
{ 532, "regaddr" },
{ 533, "get-addrs-u" },
{ 534, "list-attrib-n2" },
{ 0, NULL },
};
static const struct tok kauth_req[] = {
{ 1, "auth-old" },
{ 21, "authenticate" },
{ 22, "authenticate-v2" },
{ 2, "change-pw" },
{ 3, "get-ticket-old" },
{ 23, "get-ticket" },
{ 4, "set-pw" },
{ 5, "set-fields" },
{ 6, "create-user" },
{ 7, "delete-user" },
{ 8, "get-entry" },
{ 9, "list-entry" },
{ 10, "get-stats" },
{ 11, "debug" },
{ 12, "get-pw" },
{ 13, "get-random-key" },
{ 14, "unlock" },
{ 15, "lock-status" },
{ 0, NULL },
};
static const struct tok vol_req[] = {
{ 100, "create-volume" },
{ 101, "delete-volume" },
{ 102, "restore" },
{ 103, "forward" },
{ 104, "end-trans" },
{ 105, "clone" },
{ 106, "set-flags" },
{ 107, "get-flags" },
{ 108, "trans-create" },
{ 109, "dump" },
{ 110, "get-nth-volume" },
{ 111, "set-forwarding" },
{ 112, "get-name" },
{ 113, "get-status" },
{ 114, "sig-restore" },
{ 115, "list-partitions" },
{ 116, "list-volumes" },
{ 117, "set-id-types" },
{ 118, "monitor" },
{ 119, "partition-info" },
{ 120, "reclone" },
{ 121, "list-one-volume" },
{ 122, "nuke" },
{ 123, "set-date" },
{ 124, "x-list-volumes" },
{ 125, "x-list-one-volume" },
{ 126, "set-info" },
{ 127, "x-list-partitions" },
{ 128, "forward-multiple" },
{ 65536, "convert-ro" },
{ 65537, "get-size" },
{ 65538, "dump-v2" },
{ 0, NULL },
};
static const struct tok bos_req[] = {
{ 80, "create-bnode" },
{ 81, "delete-bnode" },
{ 82, "set-status" },
{ 83, "get-status" },
{ 84, "enumerate-instance" },
{ 85, "get-instance-info" },
{ 86, "get-instance-parm" },
{ 87, "add-superuser" },
{ 88, "delete-superuser" },
{ 89, "list-superusers" },
{ 90, "list-keys" },
{ 91, "add-key" },
{ 92, "delete-key" },
{ 93, "set-cell-name" },
{ 94, "get-cell-name" },
{ 95, "get-cell-host" },
{ 96, "add-cell-host" },
{ 97, "delete-cell-host" },
{ 98, "set-t-status" },
{ 99, "shutdown-all" },
{ 100, "restart-all" },
{ 101, "startup-all" },
{ 102, "set-noauth-flag" },
{ 103, "re-bozo" },
{ 104, "restart" },
{ 105, "start-bozo-install" },
{ 106, "uninstall" },
{ 107, "get-dates" },
{ 108, "exec" },
{ 109, "prune" },
{ 110, "set-restart-time" },
{ 111, "get-restart-time" },
{ 112, "start-bozo-log" },
{ 113, "wait-all" },
{ 114, "get-instance-strings" },
{ 115, "get-restricted" },
{ 116, "set-restricted" },
{ 0, NULL },
};
static const struct tok ubik_req[] = {
{ 10000, "vote-beacon" },
{ 10001, "vote-debug-old" },
{ 10002, "vote-sdebug-old" },
{ 10003, "vote-getsyncsite" },
{ 10004, "vote-debug" },
{ 10005, "vote-sdebug" },
{ 10006, "vote-xdebug" },
{ 10007, "vote-xsdebug" },
{ 20000, "disk-begin" },
{ 20001, "disk-commit" },
{ 20002, "disk-lock" },
{ 20003, "disk-write" },
{ 20004, "disk-getversion" },
{ 20005, "disk-getfile" },
{ 20006, "disk-sendfile" },
{ 20007, "disk-abort" },
{ 20008, "disk-releaselocks" },
{ 20009, "disk-truncate" },
{ 20010, "disk-probe" },
{ 20011, "disk-writev" },
{ 20012, "disk-interfaceaddr" },
{ 20013, "disk-setversion" },
{ 0, NULL },
};
#define VOTE_LOW 10000
#define VOTE_HIGH 10007
#define DISK_LOW 20000
#define DISK_HIGH 20013
static const struct tok cb_types[] = {
{ 1, "exclusive" },
{ 2, "shared" },
{ 3, "dropped" },
{ 0, NULL },
};
static const struct tok ubik_lock_types[] = {
{ 1, "read" },
{ 2, "write" },
{ 3, "wait" },
{ 0, NULL },
};
static const char *voltype[] = { "read-write", "read-only", "backup" };
static const struct tok afs_fs_errors[] = {
{ 101, "salvage volume" },
{ 102, "no such vnode" },
{ 103, "no such volume" },
{ 104, "volume exist" },
{ 105, "no service" },
{ 106, "volume offline" },
{ 107, "voline online" },
{ 108, "diskfull" },
{ 109, "diskquota exceeded" },
{ 110, "volume busy" },
{ 111, "volume moved" },
{ 112, "AFS IO error" },
{ 0xffffff9c, "restarting fileserver" }, /* -100, sic! */
{ 0, NULL }
};
/*
* Reasons for acknowledging a packet
*/
static const struct tok rx_ack_reasons[] = {
{ 1, "ack requested" },
{ 2, "duplicate packet" },
{ 3, "out of sequence" },
{ 4, "exceeds window" },
{ 5, "no buffer space" },
{ 6, "ping" },
{ 7, "ping response" },
{ 8, "delay" },
{ 9, "idle" },
{ 0, NULL },
};
/*
* Cache entries we keep around so we can figure out the RX opcode
* numbers for replies. This allows us to make sense of RX reply packets.
*/
struct rx_cache_entry {
uint32_t callnum; /* Call number (net order) */
uint32_t client; /* client IP address (net order) */
uint32_t server; /* server IP address (net order) */
u_int dport; /* server port (host order) */
uint16_t serviceId; /* Service identifier (net order) */
uint32_t opcode; /* RX opcode (host order) */
};
#define RX_CACHE_SIZE 64
static struct rx_cache_entry rx_cache[RX_CACHE_SIZE];
static uint32_t rx_cache_next = 0;
static uint32_t rx_cache_hint = 0;
static void rx_cache_insert(netdissect_options *, const u_char *, const struct ip *, u_int);
static int rx_cache_find(netdissect_options *, const struct rx_header *,
const struct ip *, uint32_t, uint32_t *);
static void fs_print(netdissect_options *, const u_char *, u_int);
static void fs_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void acl_print(netdissect_options *, u_char *, u_char *);
static void cb_print(netdissect_options *, const u_char *, u_int);
static void cb_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void prot_print(netdissect_options *, const u_char *, u_int);
static void prot_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void vldb_print(netdissect_options *, const u_char *, u_int);
static void vldb_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void kauth_print(netdissect_options *, const u_char *, u_int);
static void kauth_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void vol_print(netdissect_options *, const u_char *, u_int);
static void vol_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void bos_print(netdissect_options *, const u_char *, u_int);
static void bos_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void ubik_print(netdissect_options *, const u_char *);
static void ubik_reply_print(netdissect_options *, const u_char *, u_int, uint32_t);
static void rx_ack_print(netdissect_options *, const u_char *, u_int);
static int is_ubik(uint32_t);
/*
* Handle the rx-level packet. See if we know what port it's going to so
* we can peek at the afs call inside
*/
void
rx_print(netdissect_options *ndo,
const u_char *bp, u_int length, u_int sport, u_int dport,
const u_char *bp2)
{
const struct rx_header *rxh;
uint32_t i;
uint8_t type, flags;
uint32_t opcode;
ndo->ndo_protocol = "rx";
if (!ND_TTEST_LEN(bp, sizeof(struct rx_header))) {
ND_PRINT(" [|rx] (%u)", length);
return;
}
rxh = (const struct rx_header *) bp;
type = GET_U_1(rxh->type);
ND_PRINT(" rx %s", tok2str(rx_types, "type %u", type));
flags = GET_U_1(rxh->flags);
if (ndo->ndo_vflag) {
int firstflag = 0;
if (ndo->ndo_vflag > 1)
ND_PRINT(" cid %08x call# %u",
GET_BE_U_4(rxh->cid),
GET_BE_U_4(rxh->callNumber));
ND_PRINT(" seq %u ser %u",
GET_BE_U_4(rxh->seq),
GET_BE_U_4(rxh->serial));
if (ndo->ndo_vflag > 2)
ND_PRINT(" secindex %u serviceid %hu",
GET_U_1(rxh->securityIndex),
GET_BE_U_2(rxh->serviceId));
if (ndo->ndo_vflag > 1)
for (i = 0; i < NUM_RX_FLAGS; i++) {
if (flags & rx_flags[i].flag &&
(!rx_flags[i].packetType ||
type == rx_flags[i].packetType)) {
if (!firstflag) {
firstflag = 1;
ND_PRINT(" ");
} else {
ND_PRINT(",");
}
ND_PRINT("<%s>", rx_flags[i].s);
}
}
}
/*
* Try to handle AFS calls that we know about. Check the destination
* port and make sure it's a data packet. Also, make sure the
* seq number is 1 (because otherwise it's a continuation packet,
* and we can't interpret that). Also, seems that reply packets
* do not have the client-init flag set, so we check for that
* as well.
*/
if (type == RX_PACKET_TYPE_DATA &&
GET_BE_U_4(rxh->seq) == 1 &&
flags & RX_CLIENT_INITIATED) {
/*
* Insert this call into the call cache table, so we
* have a chance to print out replies
*/
rx_cache_insert(ndo, bp, (const struct ip *) bp2, dport);
switch (dport) {
case FS_RX_PORT: /* AFS file service */
fs_print(ndo, bp, length);
break;
case CB_RX_PORT: /* AFS callback service */
cb_print(ndo, bp, length);
break;
case PROT_RX_PORT: /* AFS protection service */
prot_print(ndo, bp, length);
break;
case VLDB_RX_PORT: /* AFS VLDB service */
vldb_print(ndo, bp, length);
break;
case KAUTH_RX_PORT: /* AFS Kerberos auth service */
kauth_print(ndo, bp, length);
break;
case VOL_RX_PORT: /* AFS Volume service */
vol_print(ndo, bp, length);
break;
case BOS_RX_PORT: /* AFS BOS service */
bos_print(ndo, bp, length);
break;
default:
;
}
/*
* If it's a reply (client-init is _not_ set, but seq is one)
* then look it up in the cache. If we find it, call the reply
* printing functions Note that we handle abort packets here,
* because printing out the return code can be useful at times.
*/
} else if (((type == RX_PACKET_TYPE_DATA &&
GET_BE_U_4(rxh->seq) == 1) ||
type == RX_PACKET_TYPE_ABORT) &&
(flags & RX_CLIENT_INITIATED) == 0 &&
rx_cache_find(ndo, rxh, (const struct ip *) bp2,
sport, &opcode)) {
switch (sport) {
case FS_RX_PORT: /* AFS file service */
fs_reply_print(ndo, bp, length, opcode);
break;
case CB_RX_PORT: /* AFS callback service */
cb_reply_print(ndo, bp, length, opcode);
break;
case PROT_RX_PORT: /* AFS PT service */
prot_reply_print(ndo, bp, length, opcode);
break;
case VLDB_RX_PORT: /* AFS VLDB service */
vldb_reply_print(ndo, bp, length, opcode);
break;
case KAUTH_RX_PORT: /* AFS Kerberos auth service */
kauth_reply_print(ndo, bp, length, opcode);
break;
case VOL_RX_PORT: /* AFS Volume service */
vol_reply_print(ndo, bp, length, opcode);
break;
case BOS_RX_PORT: /* AFS BOS service */
bos_reply_print(ndo, bp, length, opcode);
break;
default:
;
}
/*
* If it's an RX ack packet, then use the appropriate ack decoding
* function (there isn't any service-specific information in the
* ack packet, so we can use one for all AFS services)
*/
} else if (type == RX_PACKET_TYPE_ACK)
rx_ack_print(ndo, bp, length);
ND_PRINT(" (%u)", length);
}
/*
* Insert an entry into the cache. Taken from print-nfs.c
*/
static void
rx_cache_insert(netdissect_options *ndo,
const u_char *bp, const struct ip *ip, u_int dport)
{
struct rx_cache_entry *rxent;
const struct rx_header *rxh = (const struct rx_header *) bp;
if (!ND_TTEST_4(bp + sizeof(struct rx_header)))
return;
rxent = &rx_cache[rx_cache_next];
if (++rx_cache_next >= RX_CACHE_SIZE)
rx_cache_next = 0;
rxent->callnum = GET_BE_U_4(rxh->callNumber);
rxent->client = GET_IPV4_TO_NETWORK_ORDER(ip->ip_src);
rxent->server = GET_IPV4_TO_NETWORK_ORDER(ip->ip_dst);
rxent->dport = dport;
rxent->serviceId = GET_BE_U_2(rxh->serviceId);
rxent->opcode = GET_BE_U_4(bp + sizeof(struct rx_header));
}
/*
* Lookup an entry in the cache. Also taken from print-nfs.c
*
* Note that because this is a reply, we're looking at the _source_
* port.
*/
static int
rx_cache_find(netdissect_options *ndo, const struct rx_header *rxh,
const struct ip *ip, u_int sport, uint32_t *opcode)
{
uint32_t i;
struct rx_cache_entry *rxent;
uint32_t clip;
uint32_t sip;
clip = GET_IPV4_TO_NETWORK_ORDER(ip->ip_dst);
sip = GET_IPV4_TO_NETWORK_ORDER(ip->ip_src);
/* Start the search where we last left off */
i = rx_cache_hint;
do {
rxent = &rx_cache[i];
if (rxent->callnum == GET_BE_U_4(rxh->callNumber) &&
rxent->client == clip &&
rxent->server == sip &&
rxent->serviceId == GET_BE_U_2(rxh->serviceId) &&
rxent->dport == sport) {
/* We got a match! */
rx_cache_hint = i;
*opcode = rxent->opcode;
return(1);
}
if (++i >= RX_CACHE_SIZE)
i = 0;
} while (i != rx_cache_hint);
/* Our search failed */
return(0);
}
/*
* These extremely grody macros handle the printing of various AFS stuff.
*/
#define FIDOUT() { uint32_t n1, n2, n3; \
ND_TCHECK_LEN(bp, sizeof(uint32_t) * 3); \
n1 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
n2 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
n3 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT(" fid %u/%u/%u", n1, n2, n3); \
}
#define STROUT(MAX) { uint32_t _i; \
ND_TCHECK_LEN(bp, sizeof(uint32_t)); \
_i = GET_BE_U_4(bp); \
if (_i > (MAX)) \
goto trunc; \
bp += sizeof(uint32_t); \
ND_PRINT(" \""); \
if (nd_printn(ndo, bp, _i, ndo->ndo_snapend)) \
goto trunc; \
ND_PRINT("\""); \
bp += ((_i + sizeof(uint32_t) - 1) / sizeof(uint32_t)) * sizeof(uint32_t); \
}
#define INTOUT() { int32_t _i; \
ND_TCHECK_4(bp); \
_i = GET_BE_S_4(bp); \
bp += sizeof(int32_t); \
ND_PRINT(" %d", _i); \
}
#define UINTOUT() { uint32_t _i; \
ND_TCHECK_4(bp); \
_i = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT(" %u", _i); \
}
#define UINT64OUT() { uint64_t _i; \
ND_TCHECK_LEN(bp, sizeof(uint64_t)); \
_i = GET_BE_U_8(bp); \
bp += sizeof(uint64_t); \
ND_PRINT(" %" PRIu64, _i); \
}
#define DATEOUT() { time_t _t; struct tm *tm; char str[256]; \
ND_TCHECK_4(bp); \
_t = (time_t) GET_BE_S_4(bp); \
bp += sizeof(int32_t); \
tm = localtime(&_t); \
strftime(str, 256, "%Y/%m/%d %H:%M:%S", tm); \
ND_PRINT(" %s", str); \
}
#define STOREATTROUT() { uint32_t mask, _i; \
ND_TCHECK_LEN(bp, (sizeof(uint32_t) * 6)); \
mask = GET_BE_U_4(bp); bp += sizeof(uint32_t); \
if (mask) ND_PRINT(" StoreStatus"); \
if (mask & 1) { ND_PRINT(" date"); DATEOUT(); } \
else bp += sizeof(uint32_t); \
_i = GET_BE_U_4(bp); bp += sizeof(uint32_t); \
if (mask & 2) ND_PRINT(" owner %u", _i); \
_i = GET_BE_U_4(bp); bp += sizeof(uint32_t); \
if (mask & 4) ND_PRINT(" group %u", _i); \
_i = GET_BE_U_4(bp); bp += sizeof(uint32_t); \
if (mask & 8) ND_PRINT(" mode %o", _i & 07777); \
_i = GET_BE_U_4(bp); bp += sizeof(uint32_t); \
if (mask & 16) ND_PRINT(" segsize %u", _i); \
/* undocumented in 3.3 docu */ \
if (mask & 1024) ND_PRINT(" fsync"); \
}
#define UBIK_VERSIONOUT() {uint32_t epoch; uint32_t counter; \
ND_TCHECK_LEN(bp, sizeof(uint32_t) * 2); \
epoch = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
counter = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT(" %u.%u", epoch, counter); \
}
#define AFSUUIDOUT() {uint32_t temp; int _i; \
ND_TCHECK_LEN(bp, 11 * sizeof(uint32_t)); \
temp = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT(" %08x", temp); \
temp = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT("%04x", temp); \
temp = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT("%04x", temp); \
for (_i = 0; _i < 8; _i++) { \
temp = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT("%02x", (unsigned char) temp); \
} \
}
/*
* This is the sickest one of all
* MAX is expected to be a constant here
*/
#define VECOUT(MAX) { u_char *sp; \
u_char s[(MAX) + 1]; \
uint32_t k; \
ND_TCHECK_LEN(bp, (MAX) * sizeof(uint32_t)); \
sp = s; \
for (k = 0; k < (MAX); k++) { \
*sp++ = (u_char) GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
} \
s[(MAX)] = '\0'; \
ND_PRINT(" \""); \
fn_print_str(ndo, s); \
ND_PRINT("\""); \
}
#define DESTSERVEROUT() { uint32_t n1, n2, n3; \
ND_TCHECK_LEN(bp, sizeof(uint32_t) * 3); \
n1 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
n2 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
n3 = GET_BE_U_4(bp); \
bp += sizeof(uint32_t); \
ND_PRINT(" server %u:%u:%u", n1, n2, n3); \
}
/*
* Handle calls to the AFS file service (fs)
*/
static void
fs_print(netdissect_options *ndo,
const u_char *bp, u_int length)
{
uint32_t fs_op;
uint32_t i;
if (length <= sizeof(struct rx_header))
return;
/*
* Print out the afs call we're invoking. The table used here was
* gleaned from fsint/afsint.xg
*/
ND_TCHECK_4(bp + sizeof(struct rx_header));
fs_op = GET_BE_U_4(bp + sizeof(struct rx_header));
ND_PRINT(" fs call %s", tok2str(fs_req, "op#%u", fs_op));
/*
* Print out arguments to some of the AFS calls. This stuff is
* all from afsint.xg
*/
bp += sizeof(struct rx_header) + 4;
/*
* Sigh. This is gross. Ritchie forgive me.
*/
switch (fs_op) {
case 130: /* Fetch data */
FIDOUT();
ND_PRINT(" offset");
UINTOUT();
ND_PRINT(" length");
UINTOUT();
break;
case 131: /* Fetch ACL */
case 132: /* Fetch Status */
case 143: /* Old set lock */
case 144: /* Old extend lock */
case 145: /* Old release lock */
case 156: /* Set lock */
case 157: /* Extend lock */
case 158: /* Release lock */
FIDOUT();
break;
case 135: /* Store status */
FIDOUT();
STOREATTROUT();
break;
case 133: /* Store data */
FIDOUT();
STOREATTROUT();
ND_PRINT(" offset");
UINTOUT();
ND_PRINT(" length");
UINTOUT();
ND_PRINT(" flen");
UINTOUT();
break;
case 134: /* Store ACL */
{
char a[AFSOPAQUEMAX+1];
FIDOUT();
ND_TCHECK_4(bp);
i = GET_BE_U_4(bp);
bp += sizeof(uint32_t);
ND_TCHECK_LEN(bp, i);
i = min(AFSOPAQUEMAX, i);
strncpy(a, (const char *) bp, i);
a[i] = '\0';
acl_print(ndo, (u_char *) a, (u_char *) a + i);
break;
}
case 137: /* Create file */
case 141: /* MakeDir */
FIDOUT();
STROUT(AFSNAMEMAX);
STOREATTROUT();
break;
case 136: /* Remove file */
case 142: /* Remove directory */
FIDOUT();
STROUT(AFSNAMEMAX);
break;
case 138: /* Rename file */
ND_PRINT(" old");
FIDOUT();
STROUT(AFSNAMEMAX);
ND_PRINT(" new");
FIDOUT();
STROUT(AFSNAMEMAX);
break;
case 139: /* Symlink */
FIDOUT();
STROUT(AFSNAMEMAX);
ND_PRINT(" link to");
STROUT(AFSNAMEMAX);
break;
case 140: /* Link */
FIDOUT();
STROUT(AFSNAMEMAX);
ND_PRINT(" link to");
FIDOUT();
break;
case 148: /* Get volume info */
STROUT(AFSNAMEMAX);