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15637ed4 RG |
1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
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, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | * | |
43371f85 | 33 | * from: @(#)iso.c 7.14 (Berkeley) 6/27/91 |
4c45483e | 34 | * $Id: iso.c,v 1.4 1993/11/07 17:49:40 wollman Exp $ |
15637ed4 RG |
35 | */ |
36 | ||
37 | /*********************************************************** | |
38 | Copyright IBM Corporation 1987 | |
39 | ||
40 | All Rights Reserved | |
41 | ||
42 | Permission to use, copy, modify, and distribute this software and its | |
43 | documentation for any purpose and without fee is hereby granted, | |
44 | provided that the above copyright notice appear in all copies and that | |
45 | both that copyright notice and this permission notice appear in | |
46 | supporting documentation, and that the name of IBM not be | |
47 | used in advertising or publicity pertaining to distribution of the | |
48 | software without specific, written prior permission. | |
49 | ||
50 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
51 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
52 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
53 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
54 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
55 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
56 | SOFTWARE. | |
57 | ||
58 | ******************************************************************/ | |
59 | ||
60 | /* | |
61 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
62 | */ | |
43371f85 | 63 | |
15637ed4 | 64 | /* |
15637ed4 RG |
65 | * iso.c: miscellaneous routines to support the iso address family |
66 | */ | |
67 | ||
68 | #include "types.h" | |
69 | #include "param.h" | |
dd18dc33 | 70 | #include "systm.h" |
15637ed4 RG |
71 | #include "ioctl.h" |
72 | #include "mbuf.h" | |
73 | #include "domain.h" | |
74 | #include "protosw.h" | |
75 | #include "socket.h" | |
76 | #include "socketvar.h" | |
77 | #include "errno.h" | |
78 | ||
79 | #include "../net/if.h" | |
80 | #include "../net/route.h" | |
15637ed4 RG |
81 | |
82 | #include "iso.h" | |
83 | #include "iso_var.h" | |
84 | #include "iso_snpac.h" | |
85 | #include "iso_pcb.h" | |
86 | #include "clnp.h" | |
87 | #include "argo_debug.h" | |
88 | ||
89 | #ifdef ISO | |
90 | ||
4c45483e GW |
91 | static void iso_ifscrub(struct ifnet *, struct iso_ifaddr *); |
92 | ||
8ace4366 GW |
93 | struct iso_ifaddr *iso_ifaddr; |
94 | struct ifqueue clnlintrq; | |
95 | ||
15637ed4 RG |
96 | int iso_interfaces = 0; /* number of external interfaces */ |
97 | extern struct ifnet loif; /* loopback interface */ | |
4c45483e GW |
98 | int ether_output(); |
99 | void llc_rtrequest(); | |
15637ed4 RG |
100 | |
101 | ||
102 | /* | |
103 | * FUNCTION: iso_init | |
104 | * | |
105 | * PURPOSE: initialize the iso address family | |
106 | * | |
107 | * RETURNS: nothing | |
108 | * | |
109 | * SIDE EFFECTS: 1) initializes the routing table. | |
110 | * | |
111 | * | |
112 | * NOTES: | |
113 | */ | |
114 | struct radix_node_head *iso_rnhead; | |
4c45483e GW |
115 | |
116 | void | |
15637ed4 RG |
117 | iso_init() |
118 | { | |
119 | static iso_init_done; | |
120 | ||
121 | if (iso_init_done == 0) { | |
122 | iso_init_done++; | |
123 | rn_inithead(&iso_rnhead, 48, AF_ISO); | |
124 | } | |
125 | } | |
126 | ||
127 | /* | |
128 | * FUNCTION: iso_addrmatch1 | |
129 | * | |
130 | * PURPOSE: decide if the two iso_addrs passed are equal | |
131 | * | |
132 | * RETURNS: true if the addrs match, false if they do not | |
133 | * | |
134 | * SIDE EFFECTS: | |
135 | * | |
136 | * NOTES: | |
137 | */ | |
4c45483e | 138 | int |
15637ed4 RG |
139 | iso_addrmatch1(isoaa, isoab) |
140 | register struct iso_addr *isoaa, *isoab; /* addresses to check */ | |
141 | { | |
142 | u_int compare_len; | |
143 | ||
144 | IFDEBUG(D_ROUTE) | |
145 | printf("iso_addrmatch1: comparing lengths: %d to %d\n", isoaa->isoa_len, | |
146 | isoab->isoa_len); | |
147 | printf("a:\n"); | |
148 | dump_buf(isoaa->isoa_genaddr, isoaa->isoa_len); | |
149 | printf("b:\n"); | |
150 | dump_buf(isoab->isoa_genaddr, isoab->isoa_len); | |
151 | ENDDEBUG | |
152 | ||
153 | if ((compare_len = isoaa->isoa_len) != isoab->isoa_len) { | |
154 | IFDEBUG(D_ROUTE) | |
155 | printf("iso_addrmatch1: returning false because of lengths\n"); | |
156 | ENDDEBUG | |
157 | return 0; | |
158 | } | |
159 | ||
160 | #ifdef notdef | |
161 | /* TODO : generalize this to all afis with masks */ | |
162 | if( isoaa->isoa_afi == AFI_37 ) { | |
163 | /* must not compare 2 least significant digits, or for | |
164 | * that matter, the DSP | |
165 | */ | |
166 | compare_len = ADDR37_IDI_LEN - 1; | |
167 | } | |
168 | #endif | |
169 | ||
170 | IFDEBUG(D_ROUTE) | |
171 | int i; | |
172 | char *a, *b; | |
173 | ||
174 | a = isoaa->isoa_genaddr; | |
175 | b = isoab->isoa_genaddr; | |
176 | ||
177 | for (i=0; i<compare_len; i++) { | |
178 | printf("<%x=%x>", a[i]&0xff, b[i]&0xff); | |
179 | if (a[i] != b[i]) { | |
180 | printf("\naddrs are not equal at byte %d\n", i); | |
181 | return(0); | |
182 | } | |
183 | } | |
184 | printf("\n"); | |
185 | printf("addrs are equal\n"); | |
186 | return (1); | |
187 | ENDDEBUG | |
188 | return (!bcmp(isoaa->isoa_genaddr, isoab->isoa_genaddr, compare_len)); | |
189 | } | |
190 | ||
191 | /* | |
192 | * FUNCTION: iso_addrmatch | |
193 | * | |
194 | * PURPOSE: decide if the two sockadrr_isos passed are equal | |
195 | * | |
196 | * RETURNS: true if the addrs match, false if they do not | |
197 | * | |
198 | * SIDE EFFECTS: | |
199 | * | |
200 | * NOTES: | |
201 | */ | |
4c45483e | 202 | int |
15637ed4 RG |
203 | iso_addrmatch(sisoa, sisob) |
204 | struct sockaddr_iso *sisoa, *sisob; /* addresses to check */ | |
205 | { | |
206 | return(iso_addrmatch1(&sisoa->siso_addr, &sisob->siso_addr)); | |
207 | } | |
208 | #ifdef notdef | |
209 | /* | |
210 | * FUNCTION: iso_netmatch | |
211 | * | |
212 | * PURPOSE: similar to iso_addrmatch but takes sockaddr_iso | |
213 | * as argument. | |
214 | * | |
215 | * RETURNS: true if same net, false if not | |
216 | * | |
217 | * SIDE EFFECTS: | |
218 | * | |
219 | * NOTES: | |
220 | */ | |
221 | iso_netmatch(sisoa, sisob) | |
222 | struct sockaddr_iso *sisoa, *sisob; | |
223 | { | |
224 | u_char bufa[sizeof(struct sockaddr_iso)]; | |
225 | u_char bufb[sizeof(struct sockaddr_iso)]; | |
226 | register int lena, lenb; | |
227 | ||
228 | lena = iso_netof(&sisoa->siso_addr, bufa); | |
229 | lenb = iso_netof(&sisob->siso_addr, bufb); | |
230 | ||
231 | IFDEBUG(D_ROUTE) | |
232 | printf("iso_netmatch: comparing lengths: %d to %d\n", lena, lenb); | |
233 | printf("a:\n"); | |
234 | dump_buf(bufa, lena); | |
235 | printf("b:\n"); | |
236 | dump_buf(bufb, lenb); | |
237 | ENDDEBUG | |
238 | ||
239 | return ((lena == lenb) && (!bcmp(bufa, bufb, lena))); | |
240 | } | |
241 | #endif notdef | |
242 | ||
243 | /* | |
244 | * FUNCTION: iso_hashchar | |
245 | * | |
246 | * PURPOSE: Hash all character in the buffer specified into | |
247 | * a long. Return the long. | |
248 | * | |
249 | * RETURNS: The hash value. | |
250 | * | |
251 | * SIDE EFFECTS: | |
252 | * | |
253 | * NOTES: The hash is achieved by exclusive ORing 4 byte | |
254 | * quantities. | |
255 | */ | |
256 | u_long | |
257 | iso_hashchar(buf, len) | |
258 | register caddr_t buf; /* buffer to pack from */ | |
259 | register int len; /* length of buffer */ | |
260 | { | |
261 | register u_long h = 0; | |
262 | register int i; | |
263 | ||
264 | for (i=0; i<len; i+=4) { | |
265 | register u_long l = 0; | |
266 | ||
267 | if ((len - i) < 4) { | |
268 | /* buffer not multiple of 4 */ | |
269 | switch (len - i) { | |
270 | case 3: | |
271 | l |= buf[i+2] << 8; | |
272 | case 2: | |
273 | l |= buf[i+1] << 16; | |
274 | case 1: | |
275 | l |= buf[i] << 24; | |
276 | break; | |
277 | default: | |
278 | printf("iso_hashchar: unexpected value x%x\n", len - i); | |
279 | break; | |
280 | } | |
281 | } else { | |
282 | l |= buf[i] << 24; | |
283 | l |= buf[i+1] << 16; | |
284 | l |= buf[i+2] << 8; | |
285 | l |= buf[i+3]; | |
286 | } | |
287 | ||
288 | h ^= l; | |
289 | } | |
290 | ||
291 | h ^= (u_long) (len % 4); | |
292 | ||
293 | return(h); | |
294 | } | |
295 | #ifdef notdef | |
296 | /* | |
297 | * FUNCTION: iso_hash | |
298 | * | |
299 | * PURPOSE: Fill in fields of afhash structure based upon addr passed. | |
300 | * | |
301 | * RETURNS: none | |
302 | * | |
303 | * SIDE EFFECTS: | |
304 | * | |
305 | * NOTES: | |
306 | */ | |
307 | iso_hash(siso, hp) | |
308 | struct sockaddr_iso *siso; /* address to perform hash on */ | |
309 | struct afhash *hp; /* RETURN: hash info here */ | |
310 | { | |
311 | u_long buf[sizeof(struct sockaddr_iso)+1/4]; | |
312 | register int bufsize; | |
313 | ||
314 | ||
315 | bzero(buf, sizeof(buf)); | |
316 | ||
317 | bufsize = iso_netof(&siso->siso_addr, buf); | |
318 | hp->afh_nethash = iso_hashchar((caddr_t)buf, bufsize); | |
319 | ||
320 | IFDEBUG(D_ROUTE) | |
321 | printf("iso_hash: iso_netof: bufsize = %d\n", bufsize); | |
322 | ENDDEBUG | |
323 | ||
324 | hp->afh_hosthash = iso_hashchar((caddr_t)&siso->siso_addr, | |
325 | siso->siso_addr.isoa_len); | |
326 | ||
327 | IFDEBUG(D_ROUTE) | |
328 | printf("iso_hash: %s: nethash = x%x, hosthash = x%x\n", | |
329 | clnp_iso_addrp(&siso->siso_addr), hp->afh_nethash, | |
330 | hp->afh_hosthash); | |
331 | ENDDEBUG | |
332 | } | |
333 | /* | |
334 | * FUNCTION: iso_netof | |
335 | * | |
336 | * PURPOSE: Extract the network portion of the iso address. | |
337 | * The network portion of the iso address varies depending | |
338 | * on the type of address. The network portion of the | |
339 | * address will include the IDP. The network portion is: | |
340 | * | |
341 | * TYPE DESC | |
342 | * t37 The AFI and x.121 (IDI) | |
343 | * osinet The AFI, orgid, snetid | |
344 | * rfc986 The AFI, vers and network part of | |
345 | * internet address. | |
346 | * | |
347 | * RETURNS: number of bytes placed into buf. | |
348 | * | |
349 | * SIDE EFFECTS: | |
350 | * | |
351 | * NOTES: Buf is assumed to be big enough | |
352 | */ | |
353 | iso_netof(isoa, buf) | |
354 | struct iso_addr *isoa; /* address */ | |
355 | caddr_t buf; /* RESULT: network portion of address here */ | |
356 | { | |
357 | u_int len = 1; /* length of afi */ | |
358 | ||
359 | switch (isoa->isoa_afi) { | |
360 | case AFI_37: | |
361 | /* | |
362 | * Due to classic x.25 tunnel vision, there is no | |
363 | * net portion of an x.121 address. For our purposes | |
364 | * the AFI will do, so that all x.25 -type addresses | |
365 | * map to the single x.25 SNPA. (Cannot have more than | |
366 | * one, obviously). | |
367 | */ | |
368 | ||
369 | break; | |
370 | ||
371 | /* case AFI_OSINET:*/ | |
372 | case AFI_RFC986: { | |
373 | u_short idi; /* value of idi */ | |
374 | ||
375 | /* osinet and rfc986 have idi in the same place */ | |
376 | CTOH(isoa->rfc986_idi[0], isoa->rfc986_idi[1], idi); | |
377 | ||
378 | if (idi == IDI_OSINET) | |
379 | /* | |
380 | * Network portion of OSINET address can only be the IDI. Clearly, | |
381 | * with one x25 interface, one could get to several orgids, and | |
382 | * several snetids. | |
383 | len += (ADDROSINET_IDI_LEN + OVLOSINET_ORGID_LEN + | |
384 | OVLOSINET_SNETID_LEN); | |
385 | */ | |
386 | len += ADDROSINET_IDI_LEN; | |
387 | else if (idi == IDI_RFC986) { | |
388 | u_long inetaddr; | |
389 | struct ovl_rfc986 *o986 = (struct ovl_rfc986 *)isoa; | |
390 | ||
391 | /* bump len to include idi and version (1 byte) */ | |
392 | len += ADDRRFC986_IDI_LEN + 1; | |
393 | ||
394 | /* get inet addr long aligned */ | |
395 | bcopy(o986->o986_inetaddr, &inetaddr, sizeof(inetaddr)); | |
396 | inetaddr = ntohl(inetaddr); /* convert to host byte order */ | |
397 | ||
398 | IFDEBUG(D_ROUTE) | |
399 | printf("iso_netof: isoa "); | |
400 | dump_buf(isoa, sizeof(*isoa)); | |
401 | printf("iso_netof: inetaddr 0x%x ", inetaddr); | |
402 | ENDDEBUG | |
403 | ||
404 | /* bump len by size of network portion of inet address */ | |
405 | if (IN_CLASSA(inetaddr)) { | |
406 | len += 4-IN_CLASSA_NSHIFT/8; | |
407 | IFDEBUG(D_ROUTE) | |
408 | printf("iso_netof: class A net len is now %d\n", len); | |
409 | ENDDEBUG | |
410 | } else if (IN_CLASSB(inetaddr)) { | |
411 | len += 4-IN_CLASSB_NSHIFT/8; | |
412 | IFDEBUG(D_ROUTE) | |
413 | printf("iso_netof: class B net len is now %d\n", len); | |
414 | ENDDEBUG | |
415 | } else { | |
416 | len += 4-IN_CLASSC_NSHIFT/8; | |
417 | IFDEBUG(D_ROUTE) | |
418 | printf("iso_netof: class C net len is now %d\n", len); | |
419 | ENDDEBUG | |
420 | } | |
421 | } else | |
422 | len = 0; | |
423 | } break; | |
424 | ||
425 | default: | |
426 | len = 0; | |
427 | } | |
428 | ||
429 | bcopy((caddr_t)isoa, buf, len); | |
430 | IFDEBUG(D_ROUTE) | |
431 | printf("in_netof: isoa "); | |
432 | dump_buf(isoa, len); | |
433 | printf("in_netof: net "); | |
434 | dump_buf(buf, len); | |
435 | ENDDEBUG | |
436 | return len; | |
437 | } | |
438 | #endif notdef | |
439 | /* | |
440 | * Generic iso control operations (ioctl's). | |
441 | * Ifp is 0 if not an interface-specific ioctl. | |
442 | */ | |
443 | /* ARGSUSED */ | |
4c45483e | 444 | int |
15637ed4 RG |
445 | iso_control(so, cmd, data, ifp) |
446 | struct socket *so; | |
447 | int cmd; | |
448 | caddr_t data; | |
449 | register struct ifnet *ifp; | |
450 | { | |
451 | register struct iso_ifreq *ifr = (struct iso_ifreq *)data; | |
452 | register struct iso_ifaddr *ia = 0; | |
453 | register struct ifaddr *ifa; | |
454 | struct iso_ifaddr *oia; | |
455 | struct iso_aliasreq *ifra = (struct iso_aliasreq *)data; | |
456 | int error, hostIsNew, maskIsNew; | |
457 | ||
458 | /* | |
459 | * Find address for this interface, if it exists. | |
460 | */ | |
461 | if (ifp) | |
462 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) | |
463 | if (ia->ia_ifp == ifp) | |
464 | break; | |
465 | ||
466 | switch (cmd) { | |
467 | ||
468 | case SIOCAIFADDR_ISO: | |
469 | case SIOCDIFADDR_ISO: | |
470 | if (ifra->ifra_addr.siso_family == AF_ISO) | |
471 | for (oia = ia; ia; ia = ia->ia_next) { | |
472 | if (ia->ia_ifp == ifp && | |
473 | SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
474 | break; | |
475 | } | |
476 | if ((so->so_state & SS_PRIV) == 0) | |
477 | return (EPERM); | |
478 | if (ifp == 0) | |
479 | panic("iso_control"); | |
480 | if (ia == (struct iso_ifaddr *)0) { | |
481 | struct iso_ifaddr *nia; | |
482 | if (cmd == SIOCDIFADDR_ISO) | |
483 | return (EADDRNOTAVAIL); | |
484 | MALLOC(nia, struct iso_ifaddr *, sizeof(*nia), | |
485 | M_IFADDR, M_WAITOK); | |
486 | if (nia == (struct iso_ifaddr *)0) | |
487 | return (ENOBUFS); | |
488 | bzero((caddr_t)nia, sizeof(*nia)); | |
489 | if (ia = iso_ifaddr) { | |
490 | for ( ; ia->ia_next; ia = ia->ia_next) | |
491 | ; | |
492 | ia->ia_next = nia; | |
493 | } else | |
494 | iso_ifaddr = nia; | |
495 | ia = nia; | |
496 | if (ifa = ifp->if_addrlist) { | |
497 | for ( ; ifa->ifa_next; ifa = ifa->ifa_next) | |
498 | ; | |
499 | ifa->ifa_next = (struct ifaddr *) ia; | |
500 | } else | |
501 | ifp->if_addrlist = (struct ifaddr *) ia; | |
502 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
503 | ia->ia_ifa.ifa_dstaddr | |
504 | = (struct sockaddr *)&ia->ia_dstaddr; | |
505 | ia->ia_ifa.ifa_netmask | |
506 | = (struct sockaddr *)&ia->ia_sockmask; | |
507 | ia->ia_ifp = ifp; | |
508 | if (ifp != &loif) | |
509 | iso_interfaces++; | |
510 | } | |
511 | break; | |
512 | ||
513 | #define cmdbyte(x) (((x) >> 8) & 0xff) | |
514 | default: | |
515 | if (cmdbyte(cmd) == 'a') | |
516 | return (snpac_ioctl(so, cmd, data)); | |
517 | if (ia == (struct iso_ifaddr *)0) | |
518 | return (EADDRNOTAVAIL); | |
519 | break; | |
520 | } | |
521 | switch (cmd) { | |
522 | ||
523 | case SIOCGIFADDR_ISO: | |
524 | ifr->ifr_Addr = ia->ia_addr; | |
525 | break; | |
526 | ||
527 | case SIOCGIFDSTADDR_ISO: | |
528 | if ((ifp->if_flags & IFF_POINTOPOINT) == 0) | |
529 | return (EINVAL); | |
530 | ifr->ifr_Addr = ia->ia_dstaddr; | |
531 | break; | |
532 | ||
533 | case SIOCGIFNETMASK_ISO: | |
534 | ifr->ifr_Addr = ia->ia_sockmask; | |
535 | break; | |
536 | ||
537 | case SIOCAIFADDR_ISO: | |
538 | maskIsNew = 0; hostIsNew = 1; error = 0; | |
539 | if (ia->ia_addr.siso_family == AF_ISO) { | |
540 | if (ifra->ifra_addr.siso_len == 0) { | |
541 | ifra->ifra_addr = ia->ia_addr; | |
542 | hostIsNew = 0; | |
543 | } else if (SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
544 | hostIsNew = 0; | |
545 | } | |
546 | if (ifra->ifra_mask.siso_len) { | |
547 | iso_ifscrub(ifp, ia); | |
548 | ia->ia_sockmask = ifra->ifra_mask; | |
549 | maskIsNew = 1; | |
550 | } | |
551 | if ((ifp->if_flags & IFF_POINTOPOINT) && | |
552 | (ifra->ifra_dstaddr.siso_family == AF_ISO)) { | |
553 | iso_ifscrub(ifp, ia); | |
554 | ia->ia_dstaddr = ifra->ifra_dstaddr; | |
555 | maskIsNew = 1; /* We lie; but the effect's the same */ | |
556 | } | |
557 | if (ifra->ifra_addr.siso_family == AF_ISO && | |
558 | (hostIsNew || maskIsNew)) { | |
559 | error = iso_ifinit(ifp, ia, &ifra->ifra_addr, 0); | |
560 | } | |
561 | if (ifra->ifra_snpaoffset) | |
562 | ia->ia_snpaoffset = ifra->ifra_snpaoffset; | |
563 | return (error); | |
564 | ||
565 | case SIOCDIFADDR_ISO: | |
566 | iso_ifscrub(ifp, ia); | |
567 | if ((ifa = ifp->if_addrlist) == (struct ifaddr *)ia) | |
568 | ifp->if_addrlist = ifa->ifa_next; | |
569 | else { | |
570 | while (ifa->ifa_next && | |
571 | (ifa->ifa_next != (struct ifaddr *)ia)) | |
572 | ifa = ifa->ifa_next; | |
573 | if (ifa->ifa_next) | |
574 | ifa->ifa_next = ((struct ifaddr *)ia)->ifa_next; | |
575 | else | |
576 | printf("Couldn't unlink isoifaddr from ifp\n"); | |
577 | } | |
578 | oia = ia; | |
579 | if (oia == (ia = iso_ifaddr)) { | |
580 | iso_ifaddr = ia->ia_next; | |
581 | } else { | |
582 | while (ia->ia_next && (ia->ia_next != oia)) { | |
583 | ia = ia->ia_next; | |
584 | } | |
585 | if (ia->ia_next) | |
586 | ia->ia_next = oia->ia_next; | |
587 | else | |
588 | printf("Didn't unlink isoifadr from list\n"); | |
589 | } | |
590 | free((caddr_t)oia, M_IFADDR); | |
591 | break; | |
592 | ||
593 | default: | |
594 | if (ifp == 0 || ifp->if_ioctl == 0) | |
595 | return (EOPNOTSUPP); | |
596 | return ((*ifp->if_ioctl)(ifp, cmd, data)); | |
597 | } | |
598 | return (0); | |
599 | } | |
600 | ||
601 | /* | |
602 | * Delete any existing route for an interface. | |
603 | */ | |
4c45483e | 604 | static void |
15637ed4 RG |
605 | iso_ifscrub(ifp, ia) |
606 | register struct ifnet *ifp; | |
607 | register struct iso_ifaddr *ia; | |
608 | { | |
609 | int nsellength = ia->ia_addr.siso_tlen; | |
610 | if ((ia->ia_flags & IFA_ROUTE) == 0) | |
611 | return; | |
612 | ia->ia_addr.siso_tlen = 0; | |
613 | if (ifp->if_flags & IFF_LOOPBACK) | |
614 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
615 | else if (ifp->if_flags & IFF_POINTOPOINT) | |
616 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
617 | else { | |
618 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, 0); | |
619 | } | |
620 | ia->ia_addr.siso_tlen = nsellength; | |
621 | ia->ia_flags &= ~IFA_ROUTE; | |
622 | } | |
623 | ||
624 | /* | |
625 | * Initialize an interface's internet address | |
626 | * and routing table entry. | |
627 | */ | |
4c45483e | 628 | int |
15637ed4 RG |
629 | iso_ifinit(ifp, ia, siso, scrub) |
630 | register struct ifnet *ifp; | |
631 | register struct iso_ifaddr *ia; | |
632 | struct sockaddr_iso *siso; | |
4c45483e | 633 | int scrub; |
15637ed4 RG |
634 | { |
635 | struct sockaddr_iso oldaddr; | |
636 | int s = splimp(), error, nsellength; | |
637 | ||
638 | oldaddr = ia->ia_addr; | |
639 | ia->ia_addr = *siso; | |
640 | /* | |
641 | * Give the interface a chance to initialize | |
642 | * if this is its first address, | |
643 | * and to validate the address if necessary. | |
644 | */ | |
4c45483e GW |
645 | if (ifp->if_ioctl && (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, |
646 | (caddr_t)ia))) { | |
15637ed4 RG |
647 | splx(s); |
648 | ia->ia_addr = oldaddr; | |
649 | return (error); | |
650 | } | |
651 | if (scrub) { | |
652 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr; | |
653 | iso_ifscrub(ifp, ia); | |
654 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
655 | } | |
656 | /* XXX -- The following is here temporarily out of laziness | |
657 | in not changing every ethernet driver's if_ioctl routine */ | |
658 | if (ifp->if_output == ether_output) { | |
659 | ia->ia_ifa.ifa_rtrequest = llc_rtrequest; | |
660 | ia->ia_ifa.ifa_flags |= RTF_CLONING; | |
661 | ia->ia_ifa.ifa_llinfolen = sizeof(struct llinfo_llc); | |
662 | } | |
663 | /* | |
664 | * Add route for the network. | |
665 | */ | |
666 | nsellength = ia->ia_addr.siso_tlen; | |
667 | ia->ia_addr.siso_tlen = 0; | |
668 | if (ifp->if_flags & IFF_LOOPBACK) { | |
669 | ia->ia_ifa.ifa_dstaddr = ia->ia_ifa.ifa_addr; | |
670 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); | |
671 | } else if (ifp->if_flags & IFF_POINTOPOINT && | |
672 | ia->ia_dstaddr.siso_family == AF_ISO) | |
673 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); | |
674 | else { | |
675 | rt_maskedcopy(ia->ia_ifa.ifa_addr, ia->ia_ifa.ifa_dstaddr, | |
676 | ia->ia_ifa.ifa_netmask); | |
677 | ia->ia_dstaddr.siso_nlen = | |
678 | min(ia->ia_addr.siso_nlen, (ia->ia_sockmask.siso_len - 6)); | |
679 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_UP); | |
680 | } | |
681 | ia->ia_addr.siso_tlen = nsellength; | |
682 | ia->ia_flags |= IFA_ROUTE; | |
683 | splx(s); | |
684 | return (error); | |
685 | } | |
686 | #ifdef notdef | |
687 | ||
688 | struct ifaddr * | |
689 | iso_ifwithidi(addr) | |
690 | register struct sockaddr *addr; | |
691 | { | |
692 | register struct ifnet *ifp; | |
693 | register struct ifaddr *ifa; | |
694 | register u_int af = addr->sa_family; | |
695 | ||
696 | if (af != AF_ISO) | |
697 | return (0); | |
698 | IFDEBUG(D_ROUTE) | |
699 | printf(">>> iso_ifwithidi addr\n"); | |
700 | dump_isoaddr( (struct sockaddr_iso *)(addr)); | |
701 | printf("\n"); | |
702 | ENDDEBUG | |
703 | for (ifp = ifnet; ifp; ifp = ifp->if_next) { | |
704 | IFDEBUG(D_ROUTE) | |
705 | printf("iso_ifwithidi ifnet %s\n", ifp->if_name); | |
706 | ENDDEBUG | |
707 | for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) { | |
708 | IFDEBUG(D_ROUTE) | |
709 | printf("iso_ifwithidi address "); | |
710 | dump_isoaddr( (struct sockaddr_iso *)(ifa->ifa_addr)); | |
711 | ENDDEBUG | |
712 | if (ifa->ifa_addr->sa_family != addr->sa_family) | |
713 | continue; | |
714 | ||
715 | #define IFA_SIS(ifa)\ | |
716 | ((struct sockaddr_iso *)((ifa)->ifa_addr)) | |
717 | ||
718 | IFDEBUG(D_ROUTE) | |
719 | printf(" af same, args to iso_eqtype:\n"); | |
720 | printf("0x%x ", IFA_SIS(ifa)->siso_addr); | |
721 | printf(" 0x%x\n", | |
722 | &(((struct sockaddr_iso *)addr)->siso_addr)); | |
723 | ENDDEBUG | |
724 | ||
725 | if (iso_eqtype(&(IFA_SIS(ifa)->siso_addr), | |
726 | &(((struct sockaddr_iso *)addr)->siso_addr))) { | |
727 | IFDEBUG(D_ROUTE) | |
728 | printf("ifa_ifwithidi: ifa found\n"); | |
729 | ENDDEBUG | |
730 | return (ifa); | |
731 | } | |
732 | IFDEBUG(D_ROUTE) | |
733 | printf(" iso_eqtype failed\n"); | |
734 | ENDDEBUG | |
735 | } | |
736 | } | |
737 | return ((struct ifaddr *)0); | |
738 | } | |
739 | ||
740 | #endif notdef | |
741 | /* | |
742 | * FUNCTION: iso_ck_addr | |
743 | * | |
744 | * PURPOSE: return true if the iso_addr passed is | |
745 | * within the legal size limit for an iso address. | |
746 | * | |
747 | * RETURNS: true or false | |
748 | * | |
749 | * SIDE EFFECTS: | |
750 | * | |
751 | */ | |
4c45483e | 752 | int |
15637ed4 RG |
753 | iso_ck_addr(isoa) |
754 | struct iso_addr *isoa; /* address to check */ | |
755 | { | |
756 | return (isoa->isoa_len <= 20); | |
757 | ||
758 | } | |
759 | ||
760 | #ifdef notdef | |
761 | /* | |
762 | * FUNCTION: iso_eqtype | |
763 | * | |
764 | * PURPOSE: Determine if two iso addresses are of the same type. | |
765 | * This is flaky. Really we should consider all type 47 addrs to be the | |
766 | * same - but there do exist different structures for 47 addrs. | |
767 | * Gosip adds a 3rd. | |
768 | * | |
769 | * RETURNS: true if the addresses are the same type | |
770 | * | |
771 | * SIDE EFFECTS: | |
772 | * | |
773 | * NOTES: By type, I mean rfc986, t37, or osinet | |
774 | * | |
775 | * This will first compare afis. If they match, then | |
776 | * if the addr is not t37, the idis must be compared. | |
777 | */ | |
778 | iso_eqtype(isoaa, isoab) | |
779 | struct iso_addr *isoaa; /* first addr to check */ | |
780 | struct iso_addr *isoab; /* other addr to check */ | |
781 | { | |
782 | if (isoaa->isoa_afi == isoab->isoa_afi) { | |
783 | if (isoaa->isoa_afi == AFI_37) | |
784 | return(1); | |
785 | else | |
786 | return (!bcmp(&isoaa->isoa_u, &isoab->isoa_u, 2)); | |
787 | } | |
788 | return(0); | |
789 | } | |
790 | #endif notdef | |
791 | /* | |
792 | * FUNCTION: iso_localifa() | |
793 | * | |
794 | * PURPOSE: Find an interface addresss having a given destination | |
795 | * or at least matching the net. | |
796 | * | |
797 | * RETURNS: ptr to an interface address | |
798 | * | |
799 | * SIDE EFFECTS: | |
800 | * | |
801 | * NOTES: | |
802 | */ | |
803 | struct iso_ifaddr * | |
804 | iso_localifa(siso) | |
805 | register struct sockaddr_iso *siso; | |
806 | { | |
807 | register struct iso_ifaddr *ia; | |
808 | register char *cp1, *cp2, *cp3; | |
809 | register struct ifnet *ifp; | |
810 | struct iso_ifaddr *ia_maybe = 0; | |
811 | /* | |
812 | * We make one pass looking for both net matches and an exact | |
813 | * dst addr. | |
814 | */ | |
815 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) { | |
816 | if ((ifp = ia->ia_ifp) == 0 || ((ifp->if_flags & IFF_UP) == 0)) | |
817 | continue; | |
818 | if (ifp->if_flags & IFF_POINTOPOINT) { | |
819 | if ((ia->ia_dstaddr.siso_family == AF_ISO) && | |
820 | SAME_ISOADDR(&ia->ia_dstaddr, siso)) | |
821 | return (ia); | |
822 | else | |
823 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
824 | ia_maybe = ia; | |
825 | continue; | |
826 | } | |
827 | if (ia->ia_sockmask.siso_len) { | |
828 | char *cplim = ia->ia_sockmask.siso_len + (char *)&ia->ia_sockmask; | |
829 | cp1 = ia->ia_sockmask.siso_data; | |
830 | cp2 = siso->siso_data; | |
831 | cp3 = ia->ia_addr.siso_data; | |
832 | while (cp1 < cplim) | |
833 | if (*cp1++ & (*cp2++ ^ *cp3++)) | |
834 | goto next; | |
835 | ia_maybe = ia; | |
836 | } | |
837 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
838 | return ia; | |
839 | next:; | |
840 | } | |
841 | return ia_maybe; | |
842 | } | |
843 | ||
844 | #ifdef TPCONS | |
845 | #include "cons.h" | |
846 | #endif TPCONS | |
847 | /* | |
848 | * FUNCTION: iso_nlctloutput | |
849 | * | |
850 | * PURPOSE: Set options at the network level | |
851 | * | |
852 | * RETURNS: E* | |
853 | * | |
854 | * SIDE EFFECTS: | |
855 | * | |
856 | * NOTES: This could embody some of the functions of | |
857 | * rclnp_ctloutput and cons_ctloutput. | |
858 | */ | |
4c45483e | 859 | int |
15637ed4 RG |
860 | iso_nlctloutput(cmd, optname, pcb, m) |
861 | int cmd; /* command:set or get */ | |
862 | int optname; /* option of interest */ | |
863 | caddr_t pcb; /* nl pcb */ | |
864 | struct mbuf *m; /* data for set, buffer for get */ | |
865 | { | |
866 | struct isopcb *isop = (struct isopcb *)pcb; | |
867 | int error = 0; /* return value */ | |
868 | caddr_t data; /* data for option */ | |
869 | int data_len; /* data's length */ | |
870 | ||
871 | IFDEBUG(D_ISO) | |
872 | printf("iso_nlctloutput: cmd %x, opt %x, pcb %x, m %x\n", | |
873 | cmd, optname, pcb, m); | |
874 | ENDDEBUG | |
875 | ||
876 | if ((cmd != PRCO_GETOPT) && (cmd != PRCO_SETOPT)) | |
877 | return(EOPNOTSUPP); | |
878 | ||
879 | data = mtod(m, caddr_t); | |
880 | data_len = (m)->m_len; | |
881 | ||
882 | IFDEBUG(D_ISO) | |
883 | printf("iso_nlctloutput: data is:\n"); | |
884 | dump_buf(data, data_len); | |
885 | ENDDEBUG | |
886 | ||
887 | switch (optname) { | |
888 | ||
889 | #ifdef TPCONS | |
890 | case CONSOPT_X25CRUD: | |
891 | if (cmd == PRCO_GETOPT) { | |
892 | error = EOPNOTSUPP; | |
893 | break; | |
894 | } | |
895 | ||
896 | if (data_len > MAXX25CRUDLEN) { | |
897 | error = EINVAL; | |
898 | break; | |
899 | } | |
900 | ||
901 | IFDEBUG(D_ISO) | |
902 | printf("iso_nlctloutput: setting x25 crud\n"); | |
903 | ENDDEBUG | |
904 | ||
905 | bcopy(data, (caddr_t)isop->isop_x25crud, (unsigned)data_len); | |
906 | isop->isop_x25crud_len = data_len; | |
907 | break; | |
908 | #endif TPCONS | |
909 | ||
910 | default: | |
911 | error = EOPNOTSUPP; | |
912 | } | |
913 | ||
914 | return error; | |
915 | } | |
916 | #endif ISO | |
917 | ||
918 | #ifdef ARGO_DEBUG | |
919 | ||
920 | /* | |
921 | * FUNCTION: dump_isoaddr | |
922 | * | |
923 | * PURPOSE: debugging | |
924 | * | |
925 | * RETURNS: nada | |
926 | * | |
927 | */ | |
4c45483e | 928 | void |
15637ed4 RG |
929 | dump_isoaddr(s) |
930 | struct sockaddr_iso *s; | |
931 | { | |
932 | char *clnp_saddr_isop(); | |
933 | register int i; | |
934 | ||
935 | if( s->siso_family == AF_ISO) { | |
936 | printf("ISO address: suffixlen %d, %s\n", | |
937 | s->siso_tlen, clnp_saddr_isop(s)); | |
938 | } else if( s->siso_family == AF_INET) { | |
939 | /* hack */ | |
940 | struct sockaddr_in *sin = (struct sockaddr_in *)s; | |
941 | ||
942 | printf("%d.%d.%d.%d: %d", | |
943 | (sin->sin_addr.s_addr>>24)&0xff, | |
944 | (sin->sin_addr.s_addr>>16)&0xff, | |
945 | (sin->sin_addr.s_addr>>8)&0xff, | |
946 | (sin->sin_addr.s_addr)&0xff, | |
947 | sin->sin_port); | |
948 | } | |
949 | } | |
950 | ||
4c45483e | 951 | #endif /* ARGO_DEBUG */ |