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7bcd1bb8 KB |
1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
4d8170e5 | 7 | * @(#)iso.c 7.23 (Berkeley) %G% |
7bcd1bb8 KB |
8 | */ |
9 | ||
56d0087e KS |
10 | /*********************************************************** |
11 | Copyright IBM Corporation 1987 | |
12 | ||
13 | All Rights Reserved | |
14 | ||
15 | Permission to use, copy, modify, and distribute this software and its | |
16 | documentation for any purpose and without fee is hereby granted, | |
17 | provided that the above copyright notice appear in all copies and that | |
18 | both that copyright notice and this permission notice appear in | |
19 | supporting documentation, and that the name of IBM not be | |
20 | used in advertising or publicity pertaining to distribution of the | |
21 | software without specific, written prior permission. | |
22 | ||
23 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
24 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
25 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
26 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
27 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
28 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
29 | SOFTWARE. | |
30 | ||
31 | ******************************************************************/ | |
32 | ||
33 | /* | |
34 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
35 | */ | |
36 | /* | |
37 | * $Header: iso.c,v 4.11 88/09/19 14:58:35 root Exp $ | |
38 | * $Source: /usr/argo/sys/netiso/RCS/iso.c,v $ | |
39 | * | |
40 | * iso.c: miscellaneous routines to support the iso address family | |
41 | */ | |
42 | ||
5548a02f KB |
43 | #include <sys/param.h> |
44 | #include <sys/systm.h> | |
45 | #include <sys/ioctl.h> | |
46 | #include <sys/mbuf.h> | |
47 | #include <sys/domain.h> | |
48 | #include <sys/protosw.h> | |
49 | #include <sys/socket.h> | |
50 | #include <sys/socketvar.h> | |
51 | #include <sys/errno.h> | |
52 | ||
53 | #include <net/if.h> | |
54 | #include <net/route.h> | |
55 | #include <net/af.h> | |
56 | ||
57 | #include <netiso/iso.h> | |
58 | #include <netiso/iso_var.h> | |
59 | #include <netiso/iso_snpac.h> | |
60 | #include <netiso/iso_pcb.h> | |
61 | #include <netiso/clnp.h> | |
62 | #include <netiso/argo_debug.h> | |
bc8e53a7 KS |
63 | #ifdef TUBA |
64 | #include <netiso/tuba_table.h> | |
65 | #endif | |
56d0087e KS |
66 | |
67 | #ifdef ISO | |
68 | ||
69 | int iso_interfaces = 0; /* number of external interfaces */ | |
70 | extern struct ifnet loif; /* loopback interface */ | |
5c48f39f KS |
71 | int ether_output(); |
72 | void llc_rtrequest(); | |
56d0087e KS |
73 | |
74 | /* | |
75 | * FUNCTION: iso_addrmatch1 | |
76 | * | |
77 | * PURPOSE: decide if the two iso_addrs passed are equal | |
78 | * | |
79 | * RETURNS: true if the addrs match, false if they do not | |
80 | * | |
81 | * SIDE EFFECTS: | |
82 | * | |
83 | * NOTES: | |
84 | */ | |
85 | iso_addrmatch1(isoaa, isoab) | |
a50e2bc0 | 86 | register struct iso_addr *isoaa, *isoab; /* addresses to check */ |
56d0087e | 87 | { |
a50e2bc0 | 88 | u_int compare_len; |
56d0087e KS |
89 | |
90 | IFDEBUG(D_ROUTE) | |
91 | printf("iso_addrmatch1: comparing lengths: %d to %d\n", isoaa->isoa_len, | |
92 | isoab->isoa_len); | |
93 | printf("a:\n"); | |
a50e2bc0 | 94 | dump_buf(isoaa->isoa_genaddr, isoaa->isoa_len); |
56d0087e | 95 | printf("b:\n"); |
a50e2bc0 | 96 | dump_buf(isoab->isoa_genaddr, isoab->isoa_len); |
56d0087e KS |
97 | ENDDEBUG |
98 | ||
99 | if ((compare_len = isoaa->isoa_len) != isoab->isoa_len) { | |
100 | IFDEBUG(D_ROUTE) | |
101 | printf("iso_addrmatch1: returning false because of lengths\n"); | |
102 | ENDDEBUG | |
103 | return 0; | |
104 | } | |
105 | ||
a50e2bc0 | 106 | #ifdef notdef |
56d0087e KS |
107 | /* TODO : generalize this to all afis with masks */ |
108 | if( isoaa->isoa_afi == AFI_37 ) { | |
109 | /* must not compare 2 least significant digits, or for | |
110 | * that matter, the DSP | |
111 | */ | |
112 | compare_len = ADDR37_IDI_LEN - 1; | |
113 | } | |
a50e2bc0 | 114 | #endif |
56d0087e KS |
115 | |
116 | IFDEBUG(D_ROUTE) | |
117 | int i; | |
118 | char *a, *b; | |
119 | ||
a50e2bc0 KS |
120 | a = isoaa->isoa_genaddr; |
121 | b = isoab->isoa_genaddr; | |
56d0087e KS |
122 | |
123 | for (i=0; i<compare_len; i++) { | |
124 | printf("<%x=%x>", a[i]&0xff, b[i]&0xff); | |
125 | if (a[i] != b[i]) { | |
126 | printf("\naddrs are not equal at byte %d\n", i); | |
127 | return(0); | |
128 | } | |
129 | } | |
130 | printf("\n"); | |
131 | printf("addrs are equal\n"); | |
132 | return (1); | |
133 | ENDDEBUG | |
a50e2bc0 | 134 | return (!bcmp(isoaa->isoa_genaddr, isoab->isoa_genaddr, compare_len)); |
56d0087e KS |
135 | } |
136 | ||
137 | /* | |
138 | * FUNCTION: iso_addrmatch | |
139 | * | |
140 | * PURPOSE: decide if the two sockadrr_isos passed are equal | |
141 | * | |
142 | * RETURNS: true if the addrs match, false if they do not | |
143 | * | |
144 | * SIDE EFFECTS: | |
145 | * | |
146 | * NOTES: | |
147 | */ | |
148 | iso_addrmatch(sisoa, sisob) | |
149 | struct sockaddr_iso *sisoa, *sisob; /* addresses to check */ | |
150 | { | |
151 | return(iso_addrmatch1(&sisoa->siso_addr, &sisob->siso_addr)); | |
152 | } | |
a50e2bc0 | 153 | #ifdef notdef |
56d0087e KS |
154 | /* |
155 | * FUNCTION: iso_netmatch | |
156 | * | |
157 | * PURPOSE: similar to iso_addrmatch but takes sockaddr_iso | |
158 | * as argument. | |
159 | * | |
160 | * RETURNS: true if same net, false if not | |
161 | * | |
162 | * SIDE EFFECTS: | |
163 | * | |
164 | * NOTES: | |
165 | */ | |
166 | iso_netmatch(sisoa, sisob) | |
167 | struct sockaddr_iso *sisoa, *sisob; | |
168 | { | |
169 | u_char bufa[sizeof(struct sockaddr_iso)]; | |
170 | u_char bufb[sizeof(struct sockaddr_iso)]; | |
171 | register int lena, lenb; | |
172 | ||
173 | lena = iso_netof(&sisoa->siso_addr, bufa); | |
174 | lenb = iso_netof(&sisob->siso_addr, bufb); | |
175 | ||
176 | IFDEBUG(D_ROUTE) | |
177 | printf("iso_netmatch: comparing lengths: %d to %d\n", lena, lenb); | |
178 | printf("a:\n"); | |
179 | dump_buf(bufa, lena); | |
180 | printf("b:\n"); | |
181 | dump_buf(bufb, lenb); | |
182 | ENDDEBUG | |
183 | ||
184 | return ((lena == lenb) && (!bcmp(bufa, bufb, lena))); | |
185 | } | |
4d8170e5 | 186 | #endif /* notdef */ |
56d0087e KS |
187 | |
188 | /* | |
189 | * FUNCTION: iso_hashchar | |
190 | * | |
191 | * PURPOSE: Hash all character in the buffer specified into | |
192 | * a long. Return the long. | |
193 | * | |
194 | * RETURNS: The hash value. | |
195 | * | |
196 | * SIDE EFFECTS: | |
197 | * | |
198 | * NOTES: The hash is achieved by exclusive ORing 4 byte | |
199 | * quantities. | |
200 | */ | |
201 | u_long | |
202 | iso_hashchar(buf, len) | |
203 | register caddr_t buf; /* buffer to pack from */ | |
204 | register int len; /* length of buffer */ | |
205 | { | |
206 | register u_long h = 0; | |
207 | register int i; | |
208 | ||
209 | for (i=0; i<len; i+=4) { | |
210 | register u_long l = 0; | |
211 | ||
212 | if ((len - i) < 4) { | |
213 | /* buffer not multiple of 4 */ | |
214 | switch (len - i) { | |
215 | case 3: | |
216 | l |= buf[i+2] << 8; | |
217 | case 2: | |
218 | l |= buf[i+1] << 16; | |
219 | case 1: | |
220 | l |= buf[i] << 24; | |
221 | break; | |
222 | default: | |
223 | printf("iso_hashchar: unexpected value x%x\n", len - i); | |
224 | break; | |
225 | } | |
226 | } else { | |
227 | l |= buf[i] << 24; | |
228 | l |= buf[i+1] << 16; | |
229 | l |= buf[i+2] << 8; | |
230 | l |= buf[i+3]; | |
231 | } | |
232 | ||
233 | h ^= l; | |
234 | } | |
235 | ||
236 | h ^= (u_long) (len % 4); | |
237 | ||
238 | return(h); | |
239 | } | |
a50e2bc0 | 240 | #ifdef notdef |
56d0087e KS |
241 | /* |
242 | * FUNCTION: iso_hash | |
243 | * | |
244 | * PURPOSE: Fill in fields of afhash structure based upon addr passed. | |
245 | * | |
246 | * RETURNS: none | |
247 | * | |
248 | * SIDE EFFECTS: | |
249 | * | |
250 | * NOTES: | |
251 | */ | |
252 | iso_hash(siso, hp) | |
253 | struct sockaddr_iso *siso; /* address to perform hash on */ | |
254 | struct afhash *hp; /* RETURN: hash info here */ | |
255 | { | |
256 | u_long buf[sizeof(struct sockaddr_iso)+1/4]; | |
257 | register int bufsize; | |
258 | ||
259 | ||
260 | bzero(buf, sizeof(buf)); | |
261 | ||
262 | bufsize = iso_netof(&siso->siso_addr, buf); | |
263 | hp->afh_nethash = iso_hashchar((caddr_t)buf, bufsize); | |
264 | ||
265 | IFDEBUG(D_ROUTE) | |
266 | printf("iso_hash: iso_netof: bufsize = %d\n", bufsize); | |
267 | ENDDEBUG | |
268 | ||
269 | hp->afh_hosthash = iso_hashchar((caddr_t)&siso->siso_addr, | |
270 | siso->siso_addr.isoa_len); | |
271 | ||
272 | IFDEBUG(D_ROUTE) | |
273 | printf("iso_hash: %s: nethash = x%x, hosthash = x%x\n", | |
274 | clnp_iso_addrp(&siso->siso_addr), hp->afh_nethash, | |
275 | hp->afh_hosthash); | |
276 | ENDDEBUG | |
277 | } | |
56d0087e KS |
278 | /* |
279 | * FUNCTION: iso_netof | |
280 | * | |
281 | * PURPOSE: Extract the network portion of the iso address. | |
282 | * The network portion of the iso address varies depending | |
283 | * on the type of address. The network portion of the | |
284 | * address will include the IDP. The network portion is: | |
285 | * | |
286 | * TYPE DESC | |
287 | * t37 The AFI and x.121 (IDI) | |
288 | * osinet The AFI, orgid, snetid | |
289 | * rfc986 The AFI, vers and network part of | |
290 | * internet address. | |
291 | * | |
292 | * RETURNS: number of bytes placed into buf. | |
293 | * | |
294 | * SIDE EFFECTS: | |
295 | * | |
296 | * NOTES: Buf is assumed to be big enough | |
297 | */ | |
298 | iso_netof(isoa, buf) | |
299 | struct iso_addr *isoa; /* address */ | |
300 | caddr_t buf; /* RESULT: network portion of address here */ | |
301 | { | |
302 | u_int len = 1; /* length of afi */ | |
303 | ||
304 | switch (isoa->isoa_afi) { | |
305 | case AFI_37: | |
306 | /* | |
307 | * Due to classic x.25 tunnel vision, there is no | |
308 | * net portion of an x.121 address. For our purposes | |
309 | * the AFI will do, so that all x.25 -type addresses | |
310 | * map to the single x.25 SNPA. (Cannot have more than | |
311 | * one, obviously). | |
312 | */ | |
313 | ||
314 | break; | |
315 | ||
316 | /* case AFI_OSINET:*/ | |
317 | case AFI_RFC986: { | |
318 | u_short idi; /* value of idi */ | |
319 | ||
320 | /* osinet and rfc986 have idi in the same place */ | |
321 | CTOH(isoa->rfc986_idi[0], isoa->rfc986_idi[1], idi); | |
322 | ||
323 | if (idi == IDI_OSINET) | |
324 | /* | |
325 | * Network portion of OSINET address can only be the IDI. Clearly, | |
326 | * with one x25 interface, one could get to several orgids, and | |
327 | * several snetids. | |
328 | len += (ADDROSINET_IDI_LEN + OVLOSINET_ORGID_LEN + | |
329 | OVLOSINET_SNETID_LEN); | |
330 | */ | |
331 | len += ADDROSINET_IDI_LEN; | |
332 | else if (idi == IDI_RFC986) { | |
333 | u_long inetaddr; | |
334 | struct ovl_rfc986 *o986 = (struct ovl_rfc986 *)isoa; | |
335 | ||
336 | /* bump len to include idi and version (1 byte) */ | |
337 | len += ADDRRFC986_IDI_LEN + 1; | |
338 | ||
339 | /* get inet addr long aligned */ | |
340 | bcopy(o986->o986_inetaddr, &inetaddr, sizeof(inetaddr)); | |
341 | inetaddr = ntohl(inetaddr); /* convert to host byte order */ | |
342 | ||
343 | IFDEBUG(D_ROUTE) | |
344 | printf("iso_netof: isoa "); | |
345 | dump_buf(isoa, sizeof(*isoa)); | |
346 | printf("iso_netof: inetaddr 0x%x ", inetaddr); | |
347 | ENDDEBUG | |
348 | ||
349 | /* bump len by size of network portion of inet address */ | |
350 | if (IN_CLASSA(inetaddr)) { | |
351 | len += 4-IN_CLASSA_NSHIFT/8; | |
352 | IFDEBUG(D_ROUTE) | |
353 | printf("iso_netof: class A net len is now %d\n", len); | |
354 | ENDDEBUG | |
355 | } else if (IN_CLASSB(inetaddr)) { | |
356 | len += 4-IN_CLASSB_NSHIFT/8; | |
357 | IFDEBUG(D_ROUTE) | |
358 | printf("iso_netof: class B net len is now %d\n", len); | |
359 | ENDDEBUG | |
360 | } else { | |
361 | len += 4-IN_CLASSC_NSHIFT/8; | |
362 | IFDEBUG(D_ROUTE) | |
363 | printf("iso_netof: class C net len is now %d\n", len); | |
364 | ENDDEBUG | |
365 | } | |
366 | } else | |
367 | len = 0; | |
368 | } break; | |
369 | ||
370 | default: | |
371 | len = 0; | |
372 | } | |
373 | ||
374 | bcopy((caddr_t)isoa, buf, len); | |
375 | IFDEBUG(D_ROUTE) | |
223569a9 | 376 | printf("iso_netof: isoa "); |
56d0087e | 377 | dump_buf(isoa, len); |
223569a9 | 378 | printf("iso_netof: net "); |
56d0087e KS |
379 | dump_buf(buf, len); |
380 | ENDDEBUG | |
381 | return len; | |
382 | } | |
4d8170e5 | 383 | #endif /* notdef */ |
56d0087e | 384 | /* |
a50e2bc0 KS |
385 | * Generic iso control operations (ioctl's). |
386 | * Ifp is 0 if not an interface-specific ioctl. | |
56d0087e | 387 | */ |
a50e2bc0 | 388 | /* ARGSUSED */ |
56d0087e | 389 | iso_control(so, cmd, data, ifp) |
a50e2bc0 KS |
390 | struct socket *so; |
391 | int cmd; | |
392 | caddr_t data; | |
393 | register struct ifnet *ifp; | |
56d0087e | 394 | { |
a50e2bc0 KS |
395 | register struct iso_ifreq *ifr = (struct iso_ifreq *)data; |
396 | register struct iso_ifaddr *ia = 0; | |
397 | register struct ifaddr *ifa; | |
398 | struct iso_ifaddr *oia; | |
399 | struct iso_aliasreq *ifra = (struct iso_aliasreq *)data; | |
400 | int error, hostIsNew, maskIsNew; | |
56d0087e | 401 | |
a50e2bc0 KS |
402 | /* |
403 | * Find address for this interface, if it exists. | |
404 | */ | |
405 | if (ifp) | |
406 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) | |
407 | if (ia->ia_ifp == ifp) | |
408 | break; | |
56d0087e KS |
409 | |
410 | switch (cmd) { | |
a50e2bc0 KS |
411 | |
412 | case SIOCAIFADDR_ISO: | |
413 | case SIOCDIFADDR_ISO: | |
414 | if (ifra->ifra_addr.siso_family == AF_ISO) | |
415 | for (oia = ia; ia; ia = ia->ia_next) { | |
416 | if (ia->ia_ifp == ifp && | |
417 | SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
418 | break; | |
419 | } | |
20cc24df KS |
420 | if ((so->so_state & SS_PRIV) == 0) |
421 | return (EPERM); | |
56d0087e | 422 | if (ifp == 0) |
a50e2bc0 KS |
423 | panic("iso_control"); |
424 | if (ia == (struct iso_ifaddr *)0) { | |
425 | struct iso_ifaddr *nia; | |
426 | if (cmd == SIOCDIFADDR_ISO) | |
427 | return (EADDRNOTAVAIL); | |
bc8e53a7 KS |
428 | #ifdef TUBA |
429 | /* XXXXXX can't be done in the proto init routines */ | |
430 | if (tuba_tree == 0) | |
431 | tuba_table_init(); | |
432 | #endif | |
a50e2bc0 KS |
433 | MALLOC(nia, struct iso_ifaddr *, sizeof(*nia), |
434 | M_IFADDR, M_WAITOK); | |
435 | if (nia == (struct iso_ifaddr *)0) | |
436 | return (ENOBUFS); | |
437 | bzero((caddr_t)nia, sizeof(*nia)); | |
438 | if (ia = iso_ifaddr) { | |
439 | for ( ; ia->ia_next; ia = ia->ia_next) | |
440 | ; | |
441 | ia->ia_next = nia; | |
442 | } else | |
443 | iso_ifaddr = nia; | |
444 | ia = nia; | |
445 | if (ifa = ifp->if_addrlist) { | |
446 | for ( ; ifa->ifa_next; ifa = ifa->ifa_next) | |
447 | ; | |
448 | ifa->ifa_next = (struct ifaddr *) ia; | |
449 | } else | |
450 | ifp->if_addrlist = (struct ifaddr *) ia; | |
451 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
452 | ia->ia_ifa.ifa_dstaddr | |
453 | = (struct sockaddr *)&ia->ia_dstaddr; | |
454 | ia->ia_ifa.ifa_netmask | |
455 | = (struct sockaddr *)&ia->ia_sockmask; | |
456 | ia->ia_ifp = ifp; | |
457 | if (ifp != &loif) | |
458 | iso_interfaces++; | |
459 | } | |
460 | break; | |
56d0087e | 461 | |
a50e2bc0 KS |
462 | #define cmdbyte(x) (((x) >> 8) & 0xff) |
463 | default: | |
464 | if (cmdbyte(cmd) == 'a') | |
20cc24df | 465 | return (snpac_ioctl(so, cmd, data)); |
a50e2bc0 KS |
466 | if (ia == (struct iso_ifaddr *)0) |
467 | return (EADDRNOTAVAIL); | |
468 | break; | |
469 | } | |
470 | switch (cmd) { | |
56d0087e | 471 | |
a50e2bc0 KS |
472 | case SIOCGIFADDR_ISO: |
473 | ifr->ifr_Addr = ia->ia_addr; | |
474 | break; | |
475 | ||
476 | case SIOCGIFDSTADDR_ISO: | |
477 | if ((ifp->if_flags & IFF_POINTOPOINT) == 0) | |
478 | return (EINVAL); | |
479 | ifr->ifr_Addr = ia->ia_dstaddr; | |
480 | break; | |
481 | ||
482 | case SIOCGIFNETMASK_ISO: | |
483 | ifr->ifr_Addr = ia->ia_sockmask; | |
484 | break; | |
485 | ||
486 | case SIOCAIFADDR_ISO: | |
a966c50c | 487 | maskIsNew = 0; hostIsNew = 1; error = 0; |
a50e2bc0 KS |
488 | if (ia->ia_addr.siso_family == AF_ISO) { |
489 | if (ifra->ifra_addr.siso_len == 0) { | |
490 | ifra->ifra_addr = ia->ia_addr; | |
491 | hostIsNew = 0; | |
492 | } else if (SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
493 | hostIsNew = 0; | |
494 | } | |
495 | if (ifra->ifra_mask.siso_len) { | |
496 | iso_ifscrub(ifp, ia); | |
497 | ia->ia_sockmask = ifra->ifra_mask; | |
498 | maskIsNew = 1; | |
499 | } | |
500 | if ((ifp->if_flags & IFF_POINTOPOINT) && | |
501 | (ifra->ifra_dstaddr.siso_family == AF_ISO)) { | |
502 | iso_ifscrub(ifp, ia); | |
503 | ia->ia_dstaddr = ifra->ifra_dstaddr; | |
504 | maskIsNew = 1; /* We lie; but the effect's the same */ | |
56d0087e | 505 | } |
a50e2bc0 KS |
506 | if (ifra->ifra_addr.siso_family == AF_ISO && |
507 | (hostIsNew || maskIsNew)) { | |
508 | error = iso_ifinit(ifp, ia, &ifra->ifra_addr, 0); | |
509 | } | |
510 | if (ifra->ifra_snpaoffset) | |
511 | ia->ia_snpaoffset = ifra->ifra_snpaoffset; | |
512 | return (error); | |
56d0087e | 513 | |
a50e2bc0 KS |
514 | case SIOCDIFADDR_ISO: |
515 | iso_ifscrub(ifp, ia); | |
516 | if ((ifa = ifp->if_addrlist) == (struct ifaddr *)ia) | |
517 | ifp->if_addrlist = ifa->ifa_next; | |
518 | else { | |
519 | while (ifa->ifa_next && | |
520 | (ifa->ifa_next != (struct ifaddr *)ia)) | |
521 | ifa = ifa->ifa_next; | |
522 | if (ifa->ifa_next) | |
523 | ifa->ifa_next = ((struct ifaddr *)ia)->ifa_next; | |
524 | else | |
525 | printf("Couldn't unlink isoifaddr from ifp\n"); | |
526 | } | |
527 | oia = ia; | |
528 | if (oia == (ia = iso_ifaddr)) { | |
529 | iso_ifaddr = ia->ia_next; | |
530 | } else { | |
531 | while (ia->ia_next && (ia->ia_next != oia)) { | |
532 | ia = ia->ia_next; | |
56d0087e | 533 | } |
a50e2bc0 KS |
534 | if (ia->ia_next) |
535 | ia->ia_next = oia->ia_next; | |
536 | else | |
537 | printf("Didn't unlink isoifadr from list\n"); | |
56d0087e | 538 | } |
b965365f | 539 | IFAFREE((&oia->ia_ifa)); |
a50e2bc0 | 540 | break; |
56d0087e KS |
541 | |
542 | default: | |
543 | if (ifp == 0 || ifp->if_ioctl == 0) | |
544 | return (EOPNOTSUPP); | |
545 | return ((*ifp->if_ioctl)(ifp, cmd, data)); | |
546 | } | |
a50e2bc0 KS |
547 | return (0); |
548 | } | |
549 | ||
550 | /* | |
551 | * Delete any existing route for an interface. | |
552 | */ | |
553 | iso_ifscrub(ifp, ia) | |
554 | register struct ifnet *ifp; | |
555 | register struct iso_ifaddr *ia; | |
556 | { | |
c2bb180a | 557 | int nsellength = ia->ia_addr.siso_tlen; |
a50e2bc0 KS |
558 | if ((ia->ia_flags & IFA_ROUTE) == 0) |
559 | return; | |
c2bb180a | 560 | ia->ia_addr.siso_tlen = 0; |
a50e2bc0 KS |
561 | if (ifp->if_flags & IFF_LOOPBACK) |
562 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
563 | else if (ifp->if_flags & IFF_POINTOPOINT) | |
564 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
565 | else { | |
566 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, 0); | |
567 | } | |
c2bb180a | 568 | ia->ia_addr.siso_tlen = nsellength; |
a50e2bc0 KS |
569 | ia->ia_flags &= ~IFA_ROUTE; |
570 | } | |
571 | ||
572 | /* | |
573 | * Initialize an interface's internet address | |
574 | * and routing table entry. | |
575 | */ | |
576 | iso_ifinit(ifp, ia, siso, scrub) | |
577 | register struct ifnet *ifp; | |
578 | register struct iso_ifaddr *ia; | |
579 | struct sockaddr_iso *siso; | |
580 | { | |
581 | struct sockaddr_iso oldaddr; | |
c2bb180a | 582 | int s = splimp(), error, nsellength; |
a50e2bc0 KS |
583 | |
584 | oldaddr = ia->ia_addr; | |
585 | ia->ia_addr = *siso; | |
586 | /* | |
587 | * Give the interface a chance to initialize | |
588 | * if this is its first address, | |
589 | * and to validate the address if necessary. | |
590 | */ | |
5c48f39f KS |
591 | if (ifp->if_ioctl && |
592 | (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, (caddr_t)ia))) { | |
a50e2bc0 KS |
593 | splx(s); |
594 | ia->ia_addr = oldaddr; | |
595 | return (error); | |
596 | } | |
597 | if (scrub) { | |
598 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr; | |
599 | iso_ifscrub(ifp, ia); | |
600 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
601 | } | |
c2bb180a KS |
602 | /* XXX -- The following is here temporarily out of laziness |
603 | in not changing every ethernet driver's if_ioctl routine */ | |
604 | if (ifp->if_output == ether_output) { | |
605 | ia->ia_ifa.ifa_rtrequest = llc_rtrequest; | |
606 | ia->ia_ifa.ifa_flags |= RTF_CLONING; | |
c2bb180a | 607 | } |
a50e2bc0 KS |
608 | /* |
609 | * Add route for the network. | |
610 | */ | |
c2bb180a KS |
611 | nsellength = ia->ia_addr.siso_tlen; |
612 | ia->ia_addr.siso_tlen = 0; | |
a50e2bc0 KS |
613 | if (ifp->if_flags & IFF_LOOPBACK) { |
614 | ia->ia_ifa.ifa_dstaddr = ia->ia_ifa.ifa_addr; | |
7b1cab50 | 615 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); |
a50e2bc0 KS |
616 | } else if (ifp->if_flags & IFF_POINTOPOINT && |
617 | ia->ia_dstaddr.siso_family == AF_ISO) | |
7b1cab50 | 618 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); |
a50e2bc0 | 619 | else { |
7b1cab50 KS |
620 | rt_maskedcopy(ia->ia_ifa.ifa_addr, ia->ia_ifa.ifa_dstaddr, |
621 | ia->ia_ifa.ifa_netmask); | |
e6e05018 KS |
622 | ia->ia_dstaddr.siso_nlen = |
623 | min(ia->ia_addr.siso_nlen, (ia->ia_sockmask.siso_len - 6)); | |
7b1cab50 | 624 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_UP); |
a50e2bc0 | 625 | } |
c2bb180a | 626 | ia->ia_addr.siso_tlen = nsellength; |
a50e2bc0 KS |
627 | ia->ia_flags |= IFA_ROUTE; |
628 | splx(s); | |
7b1cab50 | 629 | return (error); |
56d0087e | 630 | } |
a50e2bc0 | 631 | #ifdef notdef |
56d0087e KS |
632 | |
633 | struct ifaddr * | |
634 | iso_ifwithidi(addr) | |
635 | register struct sockaddr *addr; | |
636 | { | |
637 | register struct ifnet *ifp; | |
638 | register struct ifaddr *ifa; | |
639 | register u_int af = addr->sa_family; | |
640 | ||
641 | if (af != AF_ISO) | |
642 | return (0); | |
643 | IFDEBUG(D_ROUTE) | |
644 | printf(">>> iso_ifwithidi addr\n"); | |
645 | dump_isoaddr( (struct sockaddr_iso *)(addr)); | |
646 | printf("\n"); | |
647 | ENDDEBUG | |
648 | for (ifp = ifnet; ifp; ifp = ifp->if_next) { | |
649 | IFDEBUG(D_ROUTE) | |
650 | printf("iso_ifwithidi ifnet %s\n", ifp->if_name); | |
651 | ENDDEBUG | |
652 | for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) { | |
653 | IFDEBUG(D_ROUTE) | |
654 | printf("iso_ifwithidi address "); | |
a50e2bc0 | 655 | dump_isoaddr( (struct sockaddr_iso *)(ifa->ifa_addr)); |
56d0087e | 656 | ENDDEBUG |
a50e2bc0 | 657 | if (ifa->ifa_addr->sa_family != addr->sa_family) |
56d0087e KS |
658 | continue; |
659 | ||
660 | #define IFA_SIS(ifa)\ | |
a50e2bc0 | 661 | ((struct sockaddr_iso *)((ifa)->ifa_addr)) |
56d0087e KS |
662 | |
663 | IFDEBUG(D_ROUTE) | |
664 | printf(" af same, args to iso_eqtype:\n"); | |
665 | printf("0x%x ", IFA_SIS(ifa)->siso_addr); | |
666 | printf(" 0x%x\n", | |
667 | &(((struct sockaddr_iso *)addr)->siso_addr)); | |
668 | ENDDEBUG | |
669 | ||
670 | if (iso_eqtype(&(IFA_SIS(ifa)->siso_addr), | |
671 | &(((struct sockaddr_iso *)addr)->siso_addr))) { | |
672 | IFDEBUG(D_ROUTE) | |
673 | printf("ifa_ifwithidi: ifa found\n"); | |
674 | ENDDEBUG | |
675 | return (ifa); | |
676 | } | |
677 | IFDEBUG(D_ROUTE) | |
678 | printf(" iso_eqtype failed\n"); | |
679 | ENDDEBUG | |
680 | } | |
681 | } | |
682 | return ((struct ifaddr *)0); | |
683 | } | |
684 | ||
4d8170e5 | 685 | #endif /* notdef */ |
56d0087e KS |
686 | /* |
687 | * FUNCTION: iso_ck_addr | |
688 | * | |
689 | * PURPOSE: return true if the iso_addr passed is | |
690 | * within the legal size limit for an iso address. | |
691 | * | |
692 | * RETURNS: true or false | |
693 | * | |
694 | * SIDE EFFECTS: | |
695 | * | |
696 | */ | |
697 | iso_ck_addr(isoa) | |
698 | struct iso_addr *isoa; /* address to check */ | |
699 | { | |
700 | return (isoa->isoa_len <= 20); | |
701 | ||
702 | } | |
703 | ||
a50e2bc0 | 704 | #ifdef notdef |
56d0087e KS |
705 | /* |
706 | * FUNCTION: iso_eqtype | |
707 | * | |
708 | * PURPOSE: Determine if two iso addresses are of the same type. | |
709 | * This is flaky. Really we should consider all type 47 addrs to be the | |
710 | * same - but there do exist different structures for 47 addrs. | |
711 | * Gosip adds a 3rd. | |
712 | * | |
713 | * RETURNS: true if the addresses are the same type | |
714 | * | |
715 | * SIDE EFFECTS: | |
716 | * | |
717 | * NOTES: By type, I mean rfc986, t37, or osinet | |
718 | * | |
719 | * This will first compare afis. If they match, then | |
720 | * if the addr is not t37, the idis must be compared. | |
721 | */ | |
722 | iso_eqtype(isoaa, isoab) | |
723 | struct iso_addr *isoaa; /* first addr to check */ | |
724 | struct iso_addr *isoab; /* other addr to check */ | |
725 | { | |
726 | if (isoaa->isoa_afi == isoab->isoa_afi) { | |
727 | if (isoaa->isoa_afi == AFI_37) | |
728 | return(1); | |
729 | else | |
730 | return (!bcmp(&isoaa->isoa_u, &isoab->isoa_u, 2)); | |
731 | } | |
732 | return(0); | |
733 | } | |
4d8170e5 | 734 | #endif /* notdef */ |
56d0087e | 735 | /* |
a50e2bc0 | 736 | * FUNCTION: iso_localifa() |
56d0087e | 737 | * |
a50e2bc0 KS |
738 | * PURPOSE: Find an interface addresss having a given destination |
739 | * or at least matching the net. | |
56d0087e KS |
740 | * |
741 | * RETURNS: ptr to an interface address | |
742 | * | |
743 | * SIDE EFFECTS: | |
744 | * | |
745 | * NOTES: | |
746 | */ | |
747 | struct iso_ifaddr * | |
a50e2bc0 KS |
748 | iso_localifa(siso) |
749 | register struct sockaddr_iso *siso; | |
56d0087e KS |
750 | { |
751 | register struct iso_ifaddr *ia; | |
a50e2bc0 KS |
752 | register char *cp1, *cp2, *cp3; |
753 | register struct ifnet *ifp; | |
754 | struct iso_ifaddr *ia_maybe = 0; | |
755 | /* | |
756 | * We make one pass looking for both net matches and an exact | |
757 | * dst addr. | |
758 | */ | |
759 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) { | |
760 | if ((ifp = ia->ia_ifp) == 0 || ((ifp->if_flags & IFF_UP) == 0)) | |
761 | continue; | |
762 | if (ifp->if_flags & IFF_POINTOPOINT) { | |
763 | if ((ia->ia_dstaddr.siso_family == AF_ISO) && | |
764 | SAME_ISOADDR(&ia->ia_dstaddr, siso)) | |
765 | return (ia); | |
766 | else | |
767 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
768 | ia_maybe = ia; | |
769 | continue; | |
770 | } | |
771 | if (ia->ia_sockmask.siso_len) { | |
772 | char *cplim = ia->ia_sockmask.siso_len + (char *)&ia->ia_sockmask; | |
773 | cp1 = ia->ia_sockmask.siso_data; | |
774 | cp2 = siso->siso_data; | |
775 | cp3 = ia->ia_addr.siso_data; | |
0d552c85 | 776 | while (cp1 < cplim) |
a50e2bc0 KS |
777 | if (*cp1++ & (*cp2++ ^ *cp3++)) |
778 | goto next; | |
779 | ia_maybe = ia; | |
780 | } | |
781 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
782 | return ia; | |
783 | next:; | |
784 | } | |
785 | return ia_maybe; | |
56d0087e KS |
786 | } |
787 | ||
7abea69b | 788 | #ifdef TPCONS |
5548a02f | 789 | #include <netiso/cons.h> |
4d8170e5 | 790 | #endif /* TPCONS */ |
56d0087e KS |
791 | /* |
792 | * FUNCTION: iso_nlctloutput | |
793 | * | |
794 | * PURPOSE: Set options at the network level | |
795 | * | |
796 | * RETURNS: E* | |
797 | * | |
798 | * SIDE EFFECTS: | |
799 | * | |
800 | * NOTES: This could embody some of the functions of | |
801 | * rclnp_ctloutput and cons_ctloutput. | |
802 | */ | |
803 | iso_nlctloutput(cmd, optname, pcb, m) | |
804 | int cmd; /* command:set or get */ | |
805 | int optname; /* option of interest */ | |
806 | caddr_t pcb; /* nl pcb */ | |
807 | struct mbuf *m; /* data for set, buffer for get */ | |
808 | { | |
809 | struct isopcb *isop = (struct isopcb *)pcb; | |
810 | int error = 0; /* return value */ | |
811 | caddr_t data; /* data for option */ | |
812 | int data_len; /* data's length */ | |
813 | ||
814 | IFDEBUG(D_ISO) | |
815 | printf("iso_nlctloutput: cmd %x, opt %x, pcb %x, m %x\n", | |
816 | cmd, optname, pcb, m); | |
817 | ENDDEBUG | |
818 | ||
819 | if ((cmd != PRCO_GETOPT) && (cmd != PRCO_SETOPT)) | |
820 | return(EOPNOTSUPP); | |
821 | ||
822 | data = mtod(m, caddr_t); | |
823 | data_len = (m)->m_len; | |
824 | ||
825 | IFDEBUG(D_ISO) | |
826 | printf("iso_nlctloutput: data is:\n"); | |
827 | dump_buf(data, data_len); | |
828 | ENDDEBUG | |
829 | ||
830 | switch (optname) { | |
831 | ||
7abea69b | 832 | #ifdef TPCONS |
56d0087e KS |
833 | case CONSOPT_X25CRUD: |
834 | if (cmd == PRCO_GETOPT) { | |
835 | error = EOPNOTSUPP; | |
836 | break; | |
837 | } | |
838 | ||
839 | if (data_len > MAXX25CRUDLEN) { | |
840 | error = EINVAL; | |
841 | break; | |
842 | } | |
843 | ||
844 | IFDEBUG(D_ISO) | |
845 | printf("iso_nlctloutput: setting x25 crud\n"); | |
846 | ENDDEBUG | |
847 | ||
a50e2bc0 | 848 | bcopy(data, (caddr_t)isop->isop_x25crud, (unsigned)data_len); |
56d0087e KS |
849 | isop->isop_x25crud_len = data_len; |
850 | break; | |
4d8170e5 | 851 | #endif /* TPCONS */ |
56d0087e KS |
852 | |
853 | default: | |
854 | error = EOPNOTSUPP; | |
855 | } | |
d169a5dd KS |
856 | if (cmd == PRCO_SETOPT) |
857 | m_freem(m); | |
56d0087e KS |
858 | return error; |
859 | } | |
4d8170e5 | 860 | #endif /* ISO */ |
56d0087e KS |
861 | |
862 | #ifdef ARGO_DEBUG | |
863 | ||
864 | /* | |
865 | * FUNCTION: dump_isoaddr | |
866 | * | |
867 | * PURPOSE: debugging | |
868 | * | |
869 | * RETURNS: nada | |
870 | * | |
871 | */ | |
872 | dump_isoaddr(s) | |
873 | struct sockaddr_iso *s; | |
874 | { | |
a50e2bc0 | 875 | char *clnp_saddr_isop(); |
56d0087e KS |
876 | register int i; |
877 | ||
878 | if( s->siso_family == AF_ISO) { | |
a50e2bc0 | 879 | printf("ISO address: suffixlen %d, %s\n", |
44f52ea5 | 880 | s->siso_tlen, clnp_saddr_isop(s)); |
56d0087e KS |
881 | } else if( s->siso_family == AF_INET) { |
882 | /* hack */ | |
883 | struct sockaddr_in *sin = (struct sockaddr_in *)s; | |
884 | ||
885 | printf("%d.%d.%d.%d: %d", | |
886 | (sin->sin_addr.s_addr>>24)&0xff, | |
887 | (sin->sin_addr.s_addr>>16)&0xff, | |
888 | (sin->sin_addr.s_addr>>8)&0xff, | |
889 | (sin->sin_addr.s_addr)&0xff, | |
890 | sin->sin_port); | |
891 | } | |
892 | } | |
893 | ||
4d8170e5 | 894 | #endif /* ARGO_DEBUG */ |