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[dragonfly.git] / sys / netgraph7 / ng_pred1.c
blob83af41f5811b19dcdb582d201b08fdf6d07a1278
1 /*-
2 * Copyright (c) 2006 Alexander Motin <mav@alkar.net>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: src/sys/netgraph/ng_pred1.c,v 1.3 2008/01/27 02:04:12 mav Exp $
28 * $DragonFly: src/sys/netgraph7/ng_pred1.c,v 1.2 2008/06/26 23:05:35 dillon Exp $
29 */
30
31 /*
32 * Predictor-1 PPP compression netgraph node type.
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/mbuf.h>
39 #include <sys/malloc.h>
40 #include <sys/errno.h>
41 #include <sys/syslog.h>
42
43 #include "ng_message.h"
44 #include "netgraph.h"
45 #include "ng_parse.h"
46 #include "ng_pred1.h"
47
48 #include "opt_netgraph.h"
49
50 MALLOC_DEFINE(M_NETGRAPH_PRED1, "netgraph_pred1", "netgraph pred1 node ");
51
52 /* PRED1 header length */
53 #define PRED1_HDRLEN 2
54
55 #define PRED1_TABLE_SIZE 0x10000
56 #define PRED1_BUF_SIZE 4096
57 #define PPP_INITFCS 0xffff /* Initial FCS value */
58 #define PPP_GOODFCS 0xf0b8 /* Good final FCS value */
59
60 /*
61 * The following hash code is the heart of the algorithm:
62 * it builds a sliding hash sum of the previous 3-and-a-bit
63 * characters which will be used to index the guess table.
64 * A better hash function would result in additional compression,
65 * at the expense of time.
66 */
67
68 #define HASH(x) priv->Hash = (priv->Hash << 4) ^ (x)
69
70 /* Node private data */
71 struct ng_pred1_private {
72 struct ng_pred1_config cfg; /* configuration */
73 u_char GuessTable[PRED1_TABLE_SIZE]; /* dictionary */
74 u_char inbuf[PRED1_BUF_SIZE]; /* input buffer */
75 u_char outbuf[PRED1_BUF_SIZE]; /* output buffer */
76 struct ng_pred1_stats stats; /* statistics */
77 uint16_t Hash;
78 ng_ID_t ctrlnode; /* path to controlling node */
79 uint16_t seqnum; /* sequence number */
80 u_char compress; /* compress/decompress flag */
81 };
82 typedef struct ng_pred1_private *priv_p;
83
84 /* Netgraph node methods */
85 static ng_constructor_t ng_pred1_constructor;
86 static ng_rcvmsg_t ng_pred1_rcvmsg;
87 static ng_shutdown_t ng_pred1_shutdown;
88 static ng_newhook_t ng_pred1_newhook;
89 static ng_rcvdata_t ng_pred1_rcvdata;
90 static ng_disconnect_t ng_pred1_disconnect;
91
92 /* Helper functions */
93 static int ng_pred1_compress(node_p node, struct mbuf *m,
94 struct mbuf **resultp);
95 static int ng_pred1_decompress(node_p node, struct mbuf *m,
96 struct mbuf **resultp);
97 static void Pred1Init(node_p node);
98 static int Pred1Compress(node_p node, u_char *source, u_char *dest,
99 int len);
100 static int Pred1Decompress(node_p node, u_char *source, u_char *dest,
101 int slen, int dlen);
102 static void Pred1SyncTable(node_p node, u_char *source, int len);
103 static uint16_t Crc16(uint16_t fcs, u_char *cp, int len);
104
105 static const uint16_t Crc16Table[];
106
107 /* Parse type for struct ng_pred1_config. */
108 static const struct ng_parse_struct_field ng_pred1_config_type_fields[]
109 = NG_PRED1_CONFIG_INFO;
110 static const struct ng_parse_type ng_pred1_config_type = {
111 &ng_parse_struct_type,
112 ng_pred1_config_type_fields
113 };
114
115 /* Parse type for struct ng_pred1_stat. */
116 static const struct ng_parse_struct_field ng_pred1_stats_type_fields[]
117 = NG_PRED1_STATS_INFO;
118 static const struct ng_parse_type ng_pred1_stat_type = {
119 &ng_parse_struct_type,
120 ng_pred1_stats_type_fields
121 };
122
123 /* List of commands and how to convert arguments to/from ASCII. */
124 static const struct ng_cmdlist ng_pred1_cmds[] = {
125 {
126 NGM_PRED1_COOKIE,
127 NGM_PRED1_CONFIG,
128 "config",
129 &ng_pred1_config_type,
130 NULL
131 },
132 {
133 NGM_PRED1_COOKIE,
134 NGM_PRED1_RESETREQ,
135 "resetreq",
136 NULL,
137 NULL
138 },
139 {
140 NGM_PRED1_COOKIE,
141 NGM_PRED1_GET_STATS,
142 "getstats",
143 NULL,
144 &ng_pred1_stat_type
145 },
146 {
147 NGM_PRED1_COOKIE,
148 NGM_PRED1_CLR_STATS,
149 "clrstats",
150 NULL,
151 NULL
152 },
153 {
154 NGM_PRED1_COOKIE,
155 NGM_PRED1_GETCLR_STATS,
156 "getclrstats",
157 NULL,
158 &ng_pred1_stat_type
159 },
160 { 0 }
161 };
162
163 /* Node type descriptor */
164 static struct ng_type ng_pred1_typestruct = {
165 .version = NG_ABI_VERSION,
166 .name = NG_PRED1_NODE_TYPE,
167 .constructor = ng_pred1_constructor,
168 .rcvmsg = ng_pred1_rcvmsg,
169 .shutdown = ng_pred1_shutdown,
170 .newhook = ng_pred1_newhook,
171 .rcvdata = ng_pred1_rcvdata,
172 .disconnect = ng_pred1_disconnect,
173 .cmdlist = ng_pred1_cmds,
174 };
175 NETGRAPH_INIT(pred1, &ng_pred1_typestruct);
176
177 #define ERROUT(x) do { error = (x); goto done; } while (0)
178
179 /************************************************************************
180 NETGRAPH NODE STUFF
181 ************************************************************************/
182
183 /*
184 * Node type constructor
185 */
186 static int
187 ng_pred1_constructor(node_p node)
188 {
189 priv_p priv;
190
191 /* Allocate private structure. */
192 priv = kmalloc(sizeof(*priv), M_NETGRAPH_PRED1, M_WAITOK | M_ZERO);
193
194 NG_NODE_SET_PRIVATE(node, priv);
195
196 /* This node is not thread safe. */
197 NG_NODE_FORCE_WRITER(node);
198
199 /* Done */
200 return (0);
201 }
202
203 /*
204 * Give our OK for a hook to be added.
205 */
206 static int
207 ng_pred1_newhook(node_p node, hook_p hook, const char *name)
208 {
209 const priv_p priv = NG_NODE_PRIVATE(node);
210
211 if (NG_NODE_NUMHOOKS(node) > 0)
212 return (EINVAL);
213
214 if (strcmp(name, NG_PRED1_HOOK_COMP) == 0)
215 priv->compress = 1;
216 else if (strcmp(name, NG_PRED1_HOOK_DECOMP) == 0)
217 priv->compress = 0;
218 else
219 return (EINVAL);
220
221 return (0);
222 }
223
224 /*
225 * Receive a control message.
226 */
227 static int
228 ng_pred1_rcvmsg(node_p node, item_p item, hook_p lasthook)
229 {
230 const priv_p priv = NG_NODE_PRIVATE(node);
231 struct ng_mesg *resp = NULL;
232 int error = 0;
233 struct ng_mesg *msg;
234
235 NGI_GET_MSG(item, msg);
236
237 if (msg->header.typecookie != NGM_PRED1_COOKIE)
238 ERROUT(EINVAL);
239
240 switch (msg->header.cmd) {
241 case NGM_PRED1_CONFIG:
242 {
243 struct ng_pred1_config *const cfg =
244 (struct ng_pred1_config *)msg->data;
245
246 /* Check configuration. */
247 if (msg->header.arglen != sizeof(*cfg))
248 ERROUT(EINVAL);
249
250 /* Configuration is OK, reset to it. */
251 priv->cfg = *cfg;
252
253 /* Save return address so we can send reset-req's. */
254 priv->ctrlnode = NGI_RETADDR(item);
255
256 /* Clear our state. */
257 Pred1Init(node);
258
259 break;
260 }
261 case NGM_PRED1_RESETREQ:
262 Pred1Init(node);
263 break;
264
265 case NGM_PRED1_GET_STATS:
266 case NGM_PRED1_CLR_STATS:
267 case NGM_PRED1_GETCLR_STATS:
268 {
269 /* Create response. */
270 if (msg->header.cmd != NGM_PRED1_CLR_STATS) {
271 NG_MKRESPONSE(resp, msg,
272 sizeof(struct ng_pred1_stats), M_WAITOK | M_NULLOK);
273 if (resp == NULL)
274 ERROUT(ENOMEM);
275 bcopy(&priv->stats, resp->data,
276 sizeof(struct ng_pred1_stats));
277 }
278
279 if (msg->header.cmd != NGM_PRED1_GET_STATS)
280 bzero(&priv->stats, sizeof(struct ng_pred1_stats));
281 break;
282 }
283
284 default:
285 error = EINVAL;
286 break;
287 }
288 done:
289 NG_RESPOND_MSG(error, node, item, resp);
290 NG_FREE_MSG(msg);
291 return (error);
292 }
293
294 /*
295 * Receive incoming data on our hook.
296 */
297 static int
298 ng_pred1_rcvdata(hook_p hook, item_p item)
299 {
300 const node_p node = NG_HOOK_NODE(hook);
301 const priv_p priv = NG_NODE_PRIVATE(node);
302 struct mbuf *m, *out;
303 int error;
304
305 if (!priv->cfg.enable) {
306 NG_FREE_ITEM(item);
307 return (ENXIO);
308 }
309
310 NGI_GET_M(item, m);
311 /* Compress. */
312 if (priv->compress) {
313 if ((error = ng_pred1_compress(node, m, &out)) != 0) {
314 NG_FREE_ITEM(item);
315 log(LOG_NOTICE, "%s: error: %d\n", __func__, error);
316 return (error);
317 }
318
319 } else { /* Decompress. */
320 if ((error = ng_pred1_decompress(node, m, &out)) != 0) {
321 NG_FREE_ITEM(item);
322 log(LOG_NOTICE, "%s: error: %d\n", __func__, error);
323 if (priv->ctrlnode != 0) {
324 struct ng_mesg *msg;
325
326 /* Need to send a reset-request. */
327 NG_MKMESSAGE(msg, NGM_PRED1_COOKIE,
328 NGM_PRED1_RESETREQ, 0, M_WAITOK | M_NULLOK);
329 if (msg == NULL)
330 return (error);
331 NG_SEND_MSG_ID(error, node, msg,
332 priv->ctrlnode, 0);
333 }
334 return (error);
335 }
336 }
337
338 NG_FWD_NEW_DATA(error, item, hook, out);
339 return (error);
340 }
341
342 /*
343 * Destroy node.
344 */
345 static int
346 ng_pred1_shutdown(node_p node)
347 {
348 const priv_p priv = NG_NODE_PRIVATE(node);
349
350 kfree(priv, M_NETGRAPH_PRED1);
351 NG_NODE_SET_PRIVATE(node, NULL);
352 NG_NODE_UNREF(node); /* Let the node escape. */
353 return (0);
354 }
355
356 /*
357 * Hook disconnection
358 */
359 static int
360 ng_pred1_disconnect(hook_p hook)
361 {
362 const node_p node = NG_HOOK_NODE(hook);
363
364 Pred1Init(node);
365
366 /* Go away if no longer connected. */
367 if ((NG_NODE_NUMHOOKS(node) == 0) && NG_NODE_IS_VALID(node))
368 ng_rmnode_self(node);
369 return (0);
370 }
371
372 /************************************************************************
373 HELPER STUFF
374 ************************************************************************/
375
376 /*
377 * Compress/encrypt a packet and put the result in a new mbuf at *resultp.
378 * The original mbuf is not free'd.
379 */
380 static int
381 ng_pred1_compress(node_p node, struct mbuf *m, struct mbuf **resultp)
382 {
383 const priv_p priv = NG_NODE_PRIVATE(node);
384 int outlen, inlen;
385 u_char *out;
386 uint16_t fcs, lenn;
387 int len;
388
389 /* Initialize. */
390 *resultp = NULL;
391
392 inlen = m->m_pkthdr.len;
393
394 priv->stats.FramesPlain++;
395 priv->stats.InOctets += inlen;
396
397 /* Reserve space for expansion. */
398 if (inlen > (PRED1_BUF_SIZE*8/9 + 1 + 4)) {
399 priv->stats.Errors++;
400 NG_FREE_M(m);
401 return (ENOMEM);
402 }
403
404 /* Work with contiguous regions of memory. */
405 m_copydata(m, 0, inlen, (caddr_t)(priv->inbuf + 2));
406
407 NG_FREE_M(m);
408
409 lenn = htons(inlen & 0x7FFF);
410
411 /* Compute FCS. */
412 fcs = Crc16(PPP_INITFCS, (u_char *)&lenn, 2);
413 fcs = Crc16(fcs, priv->inbuf + 2, inlen);
414 fcs = ~fcs;
415
416 /* Compress data. */
417 len = Pred1Compress(node, priv->inbuf + 2, priv->outbuf + 2, inlen);
418
419 /* What happened? */
420 if (len < inlen) {
421 out = priv->outbuf;
422 outlen = 2 + len;
423 *(uint16_t *)out = lenn;
424 *out |= 0x80;
425 priv->stats.FramesComp++;
426 } else {
427 out = priv->inbuf;
428 outlen = 2 + inlen;
429 *(uint16_t *)out = lenn;
430 priv->stats.FramesUncomp++;
431 }
432
433 /* Add FCS. */
434 (out + outlen)[0] = fcs & 0xFF;
435 (out + outlen)[1] = fcs >> 8;
436
437 /* Calculate resulting size. */
438 outlen += 2;
439
440 /* Return packet in an mbuf. */
441 *resultp = m_devget((caddr_t)out, outlen, 0, NULL, NULL);
442 if (*resultp == NULL) {
443 priv->stats.Errors++;
444 return (ENOMEM);
445 };
446
447 priv->stats.OutOctets += outlen;
448
449 return (0);
450 }
451
452 /*
453 * Decompress/decrypt packet and put the result in a new mbuf at *resultp.
454 * The original mbuf is not free'd.
455 */
456 static int
457 ng_pred1_decompress(node_p node, struct mbuf *m, struct mbuf **resultp)
458 {
459 const priv_p priv = NG_NODE_PRIVATE(node);
460 int inlen;
461 uint16_t len, len1, cf, lenn;
462 uint16_t fcs;
463
464 /* Initialize. */
465 *resultp = NULL;
466
467 inlen = m->m_pkthdr.len;
468
469 if (inlen > PRED1_BUF_SIZE) {
470 priv->stats.Errors++;
471 NG_FREE_M(m);
472 return (ENOMEM);
473 }
474
475 /* Work with contiguous regions of memory. */
476 m_copydata(m, 0, inlen, (caddr_t)priv->inbuf);
477
478 priv->stats.InOctets += inlen;
479
480 /* Get initial length value. */
481 len = priv->inbuf[0] << 8;
482 len += priv->inbuf[1];
483
484 cf = (len & 0x8000);
485 len &= 0x7fff;
486
487 /* Is data compressed or not really? */
488 if (cf) {
489 NG_FREE_M(m);
490
491 priv->stats.FramesComp++;
492 len1 = Pred1Decompress(node, priv->inbuf + 2, priv->outbuf,
493 inlen - 4, PRED1_BUF_SIZE);
494 if (len != len1) {
495 /* Error is detected. Send reset request */
496 priv->stats.Errors++;
497 log(LOG_NOTICE, "ng_pred1: Comp length error (%d) "
498 "--> len (%d)\n", len, len1);
499 return (EIO);
500 }
501
502 /*
503 * CRC check on receive is defined in RFC. It is surely required
504 * for compressed frames to signal dictionary corruption,
505 * but it is actually useless for uncompressed frames because
506 * the same check has already done by HDLC and/or other layer.
507 */
508 lenn = htons(len);
509 fcs = Crc16(PPP_INITFCS, (u_char *)&lenn, 2);
510 fcs = Crc16(fcs, priv->outbuf, len);
511 fcs = Crc16(fcs, priv->inbuf + inlen - 2, 2);
512
513 if (fcs != PPP_GOODFCS) {
514 priv->stats.Errors++;
515 log(LOG_NOTICE, "ng_pred1: Pred1: Bad CRC-16\n");
516 return (EIO);
517 }
518
519 /* Return packet in an mbuf. */
520 *resultp = m_devget((caddr_t)priv->outbuf, len, 0, NULL, NULL);
521 if (*resultp == NULL) {
522 priv->stats.Errors++;
523 return (ENOMEM);
524 };
525
526 } else {
527 priv->stats.FramesUncomp++;
528 if (len != (inlen - 4)) {
529 /* Wrong length. Send reset request */
530 priv->stats.Errors++;
531 log(LOG_NOTICE, "ng_pred1: Uncomp length error (%d) "
532 "--> len (%d)\n", len, inlen - 4);
533 NG_FREE_M(m);
534 return (EIO);
535 }
536 Pred1SyncTable(node, priv->inbuf + 2, len);
537 m_adj(m, 2); /* Strip length. */
538 m_adj(m, -2); /* Strip fcs. */
539 *resultp = m;
540 }
541
542 priv->stats.FramesPlain++;
543 priv->stats.OutOctets += len;
544
545 return (0);
546 }
547
548 /*
549 * Pred1Init()
550 */
551
552 static void
553 Pred1Init(node_p node)
554 {
555 const priv_p priv = NG_NODE_PRIVATE(node);
556
557 priv->Hash = 0;
558 memset(priv->GuessTable, 0, PRED1_TABLE_SIZE);
559 }
560
561 /*
562 * Pred1Compress()
563 */
564
565 static int
566 Pred1Compress(node_p node, u_char *source, u_char *dest, int len)
567 {
568 const priv_p priv = NG_NODE_PRIVATE(node);
569 int i;
570 u_char flags;
571 u_char *flagdest, *orgdest;
572
573 orgdest = dest;
574 while (len) {
575 flagdest = dest++;
576 flags = 0; /* All guesses are wrong initially. */
577 for (i = 0; i < 8 && len; i++) {
578 if (priv->GuessTable[priv->Hash] == *source)
579 /* Guess was right - don't output. */
580 flags |= (1 << i);
581 else {
582 /* Guess wrong, output char. */
583 priv->GuessTable[priv->Hash] = *source;
584 *dest++ = *source;
585 }
586 HASH(*source++);
587 len--;
588 }
589 *flagdest = flags;
590 }
591 return (dest - orgdest);
592 }
593
594 /*
595 * Pred1Decompress()
596 *
597 * Returns decompressed size, or -1 if we ran out of space.
598 */
599
600 static int
601 Pred1Decompress(node_p node, u_char *source, u_char *dest, int slen, int dlen)
602 {
603 const priv_p priv = NG_NODE_PRIVATE(node);
604 int i;
605 u_char flags, *orgdest;
606
607 orgdest = dest;
608 while (slen) {
609 flags = *source++;
610 slen--;
611 for (i = 0; i < 8; i++, flags >>= 1) {
612 if (dlen <= 0)
613 return(-1);
614 if (flags & 0x01)
615 /* Guess correct */
616 *dest = priv->GuessTable[priv->Hash];
617 else {
618 if (!slen)
619 /* We seem to be really done -- cabo. */
620 break;
621
622 /* Guess wrong. */
623 priv->GuessTable[priv->Hash] = *source;
624 /* Read from source. */
625 *dest = *source++;
626 slen--;
627 }
628 HASH(*dest++);
629 dlen--;
630 }
631 }
632 return (dest - orgdest);
633 }
634
635 /*
636 * Pred1SyncTable()
637 */
638
639 static void
640 Pred1SyncTable(node_p node, u_char *source, int len)
641 {
642 const priv_p priv = NG_NODE_PRIVATE(node);
643
644 while (len--) {
645 priv->GuessTable[priv->Hash] = *source;
646 HASH(*source++);
647 }
648 }
649
650 /*
651 * Crc16()
652 *
653 * Compute the 16 bit frame check value, per RFC 1171 Appendix B,
654 * on an array of bytes.
655 */
656
657 static uint16_t
658 Crc16(uint16_t crc, u_char *cp, int len)
659 {
660 while (len--)
661 crc = (crc >> 8) ^ Crc16Table[(crc ^ *cp++) & 0xff];
662 return (crc);
663 }
664
665 static const uint16_t Crc16Table[256] = {
666 /* 00 */ 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
667 /* 08 */ 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
668 /* 10 */ 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
669 /* 18 */ 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
670 /* 20 */ 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
671 /* 28 */ 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
672 /* 30 */ 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
673 /* 38 */ 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
674 /* 40 */ 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
675 /* 48 */ 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
676 /* 50 */ 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
677 /* 58 */ 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
678 /* 60 */ 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
679 /* 68 */ 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
680 /* 70 */ 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
681 /* 78 */ 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
682 /* 80 */ 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
683 /* 88 */ 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
684 /* 90 */ 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
685 /* 98 */ 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
686 /* a0 */ 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
687 /* a8 */ 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
688 /* b0 */ 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
689 /* b8 */ 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
690 /* c0 */ 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
691 /* c8 */ 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
692 /* d0 */ 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
693 /* d8 */ 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
694 /* e0 */ 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
695 /* e8 */ 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
696 /* f0 */ 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
697 /* f8 */ 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
698 };
699
DragonFly BSD