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56d0087e KS |
1 | /*********************************************************** |
2 | Copyright IBM Corporation 1987 | |
3 | ||
4 | All Rights Reserved | |
5 | ||
6 | Permission to use, copy, modify, and distribute this software and its | |
7 | documentation for any purpose and without fee is hereby granted, | |
8 | provided that the above copyright notice appear in all copies and that | |
9 | both that copyright notice and this permission notice appear in | |
10 | supporting documentation, and that the name of IBM not be | |
11 | used in advertising or publicity pertaining to distribution of the | |
12 | software without specific, written prior permission. | |
13 | ||
14 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
15 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
16 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
17 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
18 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
19 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
20 | SOFTWARE. | |
21 | ||
22 | ******************************************************************/ | |
23 | ||
24 | /* | |
25 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
26 | */ | |
27 | /* | |
28 | * $Header: iso.c,v 4.11 88/09/19 14:58:35 root Exp $ | |
29 | * $Source: /usr/argo/sys/netiso/RCS/iso.c,v $ | |
a966c50c | 30 | * @(#)iso.c 7.10 (Berkeley) %G% |
56d0087e KS |
31 | * |
32 | * iso.c: miscellaneous routines to support the iso address family | |
33 | */ | |
34 | ||
35 | #ifndef lint | |
36 | static char *rcsid = "$Header: iso.c,v 4.11 88/09/19 14:58:35 root Exp $"; | |
37 | #endif | |
38 | ||
39 | ||
a50e2bc0 KS |
40 | #include "types.h" |
41 | #include "param.h" | |
42 | #include "ioctl.h" | |
43 | #include "mbuf.h" | |
44 | #include "domain.h" | |
45 | #include "protosw.h" | |
46 | #include "socket.h" | |
47 | #include "socketvar.h" | |
a50e2bc0 KS |
48 | #include "user.h" |
49 | #include "errno.h" | |
56d0087e KS |
50 | |
51 | #include "../net/if.h" | |
52 | #include "../net/route.h" | |
53 | #include "../net/af.h" | |
54 | ||
a50e2bc0 KS |
55 | #include "iso.h" |
56 | #include "iso_var.h" | |
57 | #include "iso_snpac.h" | |
58 | #include "iso_pcb.h" | |
59 | #include "clnp.h" | |
60 | #include "argo_debug.h" | |
56d0087e KS |
61 | |
62 | #ifdef ISO | |
a50e2bc0 | 63 | #include "argoxtwentyfive.h" |
56d0087e KS |
64 | |
65 | int iso_interfaces = 0; /* number of external interfaces */ | |
66 | extern struct ifnet loif; /* loopback interface */ | |
c2bb180a | 67 | int ether_output(), llc_rtrequest(); |
56d0087e KS |
68 | |
69 | ||
70 | /* | |
71 | * FUNCTION: iso_init | |
72 | * | |
73 | * PURPOSE: initialize the iso address family | |
74 | * | |
75 | * RETURNS: nothing | |
76 | * | |
77 | * SIDE EFFECTS: 1) zeros the maptab table. | |
a50e2bc0 | 78 | * 2) initializes the routing table. |
56d0087e KS |
79 | * |
80 | * NOTES: | |
81 | */ | |
a50e2bc0 | 82 | struct radix_node_head *iso_rnhead; |
56d0087e KS |
83 | iso_init() |
84 | { | |
a50e2bc0 KS |
85 | static iso_init_done; |
86 | ||
87 | if (iso_init_done == 0) { | |
88 | iso_init_done++; | |
a50e2bc0 KS |
89 | rn_inithead(&iso_rnhead, 40, AF_ISO); |
90 | } | |
56d0087e KS |
91 | } |
92 | ||
93 | /* | |
94 | * FUNCTION: iso_addrmatch1 | |
95 | * | |
96 | * PURPOSE: decide if the two iso_addrs passed are equal | |
97 | * | |
98 | * RETURNS: true if the addrs match, false if they do not | |
99 | * | |
100 | * SIDE EFFECTS: | |
101 | * | |
102 | * NOTES: | |
103 | */ | |
104 | iso_addrmatch1(isoaa, isoab) | |
a50e2bc0 | 105 | register struct iso_addr *isoaa, *isoab; /* addresses to check */ |
56d0087e | 106 | { |
a50e2bc0 | 107 | u_int compare_len; |
56d0087e KS |
108 | |
109 | IFDEBUG(D_ROUTE) | |
110 | printf("iso_addrmatch1: comparing lengths: %d to %d\n", isoaa->isoa_len, | |
111 | isoab->isoa_len); | |
112 | printf("a:\n"); | |
a50e2bc0 | 113 | dump_buf(isoaa->isoa_genaddr, isoaa->isoa_len); |
56d0087e | 114 | printf("b:\n"); |
a50e2bc0 | 115 | dump_buf(isoab->isoa_genaddr, isoab->isoa_len); |
56d0087e KS |
116 | ENDDEBUG |
117 | ||
118 | if ((compare_len = isoaa->isoa_len) != isoab->isoa_len) { | |
119 | IFDEBUG(D_ROUTE) | |
120 | printf("iso_addrmatch1: returning false because of lengths\n"); | |
121 | ENDDEBUG | |
122 | return 0; | |
123 | } | |
124 | ||
a50e2bc0 | 125 | #ifdef notdef |
56d0087e KS |
126 | /* TODO : generalize this to all afis with masks */ |
127 | if( isoaa->isoa_afi == AFI_37 ) { | |
128 | /* must not compare 2 least significant digits, or for | |
129 | * that matter, the DSP | |
130 | */ | |
131 | compare_len = ADDR37_IDI_LEN - 1; | |
132 | } | |
a50e2bc0 | 133 | #endif |
56d0087e KS |
134 | |
135 | IFDEBUG(D_ROUTE) | |
136 | int i; | |
137 | char *a, *b; | |
138 | ||
a50e2bc0 KS |
139 | a = isoaa->isoa_genaddr; |
140 | b = isoab->isoa_genaddr; | |
56d0087e KS |
141 | |
142 | for (i=0; i<compare_len; i++) { | |
143 | printf("<%x=%x>", a[i]&0xff, b[i]&0xff); | |
144 | if (a[i] != b[i]) { | |
145 | printf("\naddrs are not equal at byte %d\n", i); | |
146 | return(0); | |
147 | } | |
148 | } | |
149 | printf("\n"); | |
150 | printf("addrs are equal\n"); | |
151 | return (1); | |
152 | ENDDEBUG | |
a50e2bc0 | 153 | return (!bcmp(isoaa->isoa_genaddr, isoab->isoa_genaddr, compare_len)); |
56d0087e KS |
154 | } |
155 | ||
156 | /* | |
157 | * FUNCTION: iso_addrmatch | |
158 | * | |
159 | * PURPOSE: decide if the two sockadrr_isos passed are equal | |
160 | * | |
161 | * RETURNS: true if the addrs match, false if they do not | |
162 | * | |
163 | * SIDE EFFECTS: | |
164 | * | |
165 | * NOTES: | |
166 | */ | |
167 | iso_addrmatch(sisoa, sisob) | |
168 | struct sockaddr_iso *sisoa, *sisob; /* addresses to check */ | |
169 | { | |
170 | return(iso_addrmatch1(&sisoa->siso_addr, &sisob->siso_addr)); | |
171 | } | |
a50e2bc0 | 172 | #ifdef notdef |
56d0087e KS |
173 | /* |
174 | * FUNCTION: iso_netmatch | |
175 | * | |
176 | * PURPOSE: similar to iso_addrmatch but takes sockaddr_iso | |
177 | * as argument. | |
178 | * | |
179 | * RETURNS: true if same net, false if not | |
180 | * | |
181 | * SIDE EFFECTS: | |
182 | * | |
183 | * NOTES: | |
184 | */ | |
185 | iso_netmatch(sisoa, sisob) | |
186 | struct sockaddr_iso *sisoa, *sisob; | |
187 | { | |
188 | u_char bufa[sizeof(struct sockaddr_iso)]; | |
189 | u_char bufb[sizeof(struct sockaddr_iso)]; | |
190 | register int lena, lenb; | |
191 | ||
192 | lena = iso_netof(&sisoa->siso_addr, bufa); | |
193 | lenb = iso_netof(&sisob->siso_addr, bufb); | |
194 | ||
195 | IFDEBUG(D_ROUTE) | |
196 | printf("iso_netmatch: comparing lengths: %d to %d\n", lena, lenb); | |
197 | printf("a:\n"); | |
198 | dump_buf(bufa, lena); | |
199 | printf("b:\n"); | |
200 | dump_buf(bufb, lenb); | |
201 | ENDDEBUG | |
202 | ||
203 | return ((lena == lenb) && (!bcmp(bufa, bufb, lena))); | |
204 | } | |
a50e2bc0 | 205 | #endif notdef |
56d0087e KS |
206 | |
207 | /* | |
208 | * FUNCTION: iso_hashchar | |
209 | * | |
210 | * PURPOSE: Hash all character in the buffer specified into | |
211 | * a long. Return the long. | |
212 | * | |
213 | * RETURNS: The hash value. | |
214 | * | |
215 | * SIDE EFFECTS: | |
216 | * | |
217 | * NOTES: The hash is achieved by exclusive ORing 4 byte | |
218 | * quantities. | |
219 | */ | |
220 | u_long | |
221 | iso_hashchar(buf, len) | |
222 | register caddr_t buf; /* buffer to pack from */ | |
223 | register int len; /* length of buffer */ | |
224 | { | |
225 | register u_long h = 0; | |
226 | register int i; | |
227 | ||
228 | for (i=0; i<len; i+=4) { | |
229 | register u_long l = 0; | |
230 | ||
231 | if ((len - i) < 4) { | |
232 | /* buffer not multiple of 4 */ | |
233 | switch (len - i) { | |
234 | case 3: | |
235 | l |= buf[i+2] << 8; | |
236 | case 2: | |
237 | l |= buf[i+1] << 16; | |
238 | case 1: | |
239 | l |= buf[i] << 24; | |
240 | break; | |
241 | default: | |
242 | printf("iso_hashchar: unexpected value x%x\n", len - i); | |
243 | break; | |
244 | } | |
245 | } else { | |
246 | l |= buf[i] << 24; | |
247 | l |= buf[i+1] << 16; | |
248 | l |= buf[i+2] << 8; | |
249 | l |= buf[i+3]; | |
250 | } | |
251 | ||
252 | h ^= l; | |
253 | } | |
254 | ||
255 | h ^= (u_long) (len % 4); | |
256 | ||
257 | return(h); | |
258 | } | |
a50e2bc0 | 259 | #ifdef notdef |
56d0087e KS |
260 | /* |
261 | * FUNCTION: iso_hash | |
262 | * | |
263 | * PURPOSE: Fill in fields of afhash structure based upon addr passed. | |
264 | * | |
265 | * RETURNS: none | |
266 | * | |
267 | * SIDE EFFECTS: | |
268 | * | |
269 | * NOTES: | |
270 | */ | |
271 | iso_hash(siso, hp) | |
272 | struct sockaddr_iso *siso; /* address to perform hash on */ | |
273 | struct afhash *hp; /* RETURN: hash info here */ | |
274 | { | |
275 | u_long buf[sizeof(struct sockaddr_iso)+1/4]; | |
276 | register int bufsize; | |
277 | ||
278 | ||
279 | bzero(buf, sizeof(buf)); | |
280 | ||
281 | bufsize = iso_netof(&siso->siso_addr, buf); | |
282 | hp->afh_nethash = iso_hashchar((caddr_t)buf, bufsize); | |
283 | ||
284 | IFDEBUG(D_ROUTE) | |
285 | printf("iso_hash: iso_netof: bufsize = %d\n", bufsize); | |
286 | ENDDEBUG | |
287 | ||
288 | hp->afh_hosthash = iso_hashchar((caddr_t)&siso->siso_addr, | |
289 | siso->siso_addr.isoa_len); | |
290 | ||
291 | IFDEBUG(D_ROUTE) | |
292 | printf("iso_hash: %s: nethash = x%x, hosthash = x%x\n", | |
293 | clnp_iso_addrp(&siso->siso_addr), hp->afh_nethash, | |
294 | hp->afh_hosthash); | |
295 | ENDDEBUG | |
296 | } | |
56d0087e KS |
297 | /* |
298 | * FUNCTION: iso_netof | |
299 | * | |
300 | * PURPOSE: Extract the network portion of the iso address. | |
301 | * The network portion of the iso address varies depending | |
302 | * on the type of address. The network portion of the | |
303 | * address will include the IDP. The network portion is: | |
304 | * | |
305 | * TYPE DESC | |
306 | * t37 The AFI and x.121 (IDI) | |
307 | * osinet The AFI, orgid, snetid | |
308 | * rfc986 The AFI, vers and network part of | |
309 | * internet address. | |
310 | * | |
311 | * RETURNS: number of bytes placed into buf. | |
312 | * | |
313 | * SIDE EFFECTS: | |
314 | * | |
315 | * NOTES: Buf is assumed to be big enough | |
316 | */ | |
317 | iso_netof(isoa, buf) | |
318 | struct iso_addr *isoa; /* address */ | |
319 | caddr_t buf; /* RESULT: network portion of address here */ | |
320 | { | |
321 | u_int len = 1; /* length of afi */ | |
322 | ||
323 | switch (isoa->isoa_afi) { | |
324 | case AFI_37: | |
325 | /* | |
326 | * Due to classic x.25 tunnel vision, there is no | |
327 | * net portion of an x.121 address. For our purposes | |
328 | * the AFI will do, so that all x.25 -type addresses | |
329 | * map to the single x.25 SNPA. (Cannot have more than | |
330 | * one, obviously). | |
331 | */ | |
332 | ||
333 | break; | |
334 | ||
335 | /* case AFI_OSINET:*/ | |
336 | case AFI_RFC986: { | |
337 | u_short idi; /* value of idi */ | |
338 | ||
339 | /* osinet and rfc986 have idi in the same place */ | |
340 | CTOH(isoa->rfc986_idi[0], isoa->rfc986_idi[1], idi); | |
341 | ||
342 | if (idi == IDI_OSINET) | |
343 | /* | |
344 | * Network portion of OSINET address can only be the IDI. Clearly, | |
345 | * with one x25 interface, one could get to several orgids, and | |
346 | * several snetids. | |
347 | len += (ADDROSINET_IDI_LEN + OVLOSINET_ORGID_LEN + | |
348 | OVLOSINET_SNETID_LEN); | |
349 | */ | |
350 | len += ADDROSINET_IDI_LEN; | |
351 | else if (idi == IDI_RFC986) { | |
352 | u_long inetaddr; | |
353 | struct ovl_rfc986 *o986 = (struct ovl_rfc986 *)isoa; | |
354 | ||
355 | /* bump len to include idi and version (1 byte) */ | |
356 | len += ADDRRFC986_IDI_LEN + 1; | |
357 | ||
358 | /* get inet addr long aligned */ | |
359 | bcopy(o986->o986_inetaddr, &inetaddr, sizeof(inetaddr)); | |
360 | inetaddr = ntohl(inetaddr); /* convert to host byte order */ | |
361 | ||
362 | IFDEBUG(D_ROUTE) | |
363 | printf("iso_netof: isoa "); | |
364 | dump_buf(isoa, sizeof(*isoa)); | |
365 | printf("iso_netof: inetaddr 0x%x ", inetaddr); | |
366 | ENDDEBUG | |
367 | ||
368 | /* bump len by size of network portion of inet address */ | |
369 | if (IN_CLASSA(inetaddr)) { | |
370 | len += 4-IN_CLASSA_NSHIFT/8; | |
371 | IFDEBUG(D_ROUTE) | |
372 | printf("iso_netof: class A net len is now %d\n", len); | |
373 | ENDDEBUG | |
374 | } else if (IN_CLASSB(inetaddr)) { | |
375 | len += 4-IN_CLASSB_NSHIFT/8; | |
376 | IFDEBUG(D_ROUTE) | |
377 | printf("iso_netof: class B net len is now %d\n", len); | |
378 | ENDDEBUG | |
379 | } else { | |
380 | len += 4-IN_CLASSC_NSHIFT/8; | |
381 | IFDEBUG(D_ROUTE) | |
382 | printf("iso_netof: class C net len is now %d\n", len); | |
383 | ENDDEBUG | |
384 | } | |
385 | } else | |
386 | len = 0; | |
387 | } break; | |
388 | ||
389 | default: | |
390 | len = 0; | |
391 | } | |
392 | ||
393 | bcopy((caddr_t)isoa, buf, len); | |
394 | IFDEBUG(D_ROUTE) | |
395 | printf("in_netof: isoa "); | |
396 | dump_buf(isoa, len); | |
397 | printf("in_netof: net "); | |
398 | dump_buf(buf, len); | |
399 | ENDDEBUG | |
400 | return len; | |
401 | } | |
a50e2bc0 | 402 | #endif notdef |
56d0087e | 403 | /* |
a50e2bc0 KS |
404 | * Generic iso control operations (ioctl's). |
405 | * Ifp is 0 if not an interface-specific ioctl. | |
56d0087e | 406 | */ |
a50e2bc0 | 407 | /* ARGSUSED */ |
56d0087e | 408 | iso_control(so, cmd, data, ifp) |
a50e2bc0 KS |
409 | struct socket *so; |
410 | int cmd; | |
411 | caddr_t data; | |
412 | register struct ifnet *ifp; | |
56d0087e | 413 | { |
a50e2bc0 KS |
414 | register struct iso_ifreq *ifr = (struct iso_ifreq *)data; |
415 | register struct iso_ifaddr *ia = 0; | |
416 | register struct ifaddr *ifa; | |
417 | struct iso_ifaddr *oia; | |
418 | struct iso_aliasreq *ifra = (struct iso_aliasreq *)data; | |
419 | int error, hostIsNew, maskIsNew; | |
56d0087e | 420 | |
a50e2bc0 KS |
421 | /* |
422 | * Find address for this interface, if it exists. | |
423 | */ | |
424 | if (ifp) | |
425 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) | |
426 | if (ia->ia_ifp == ifp) | |
427 | break; | |
56d0087e KS |
428 | |
429 | switch (cmd) { | |
a50e2bc0 KS |
430 | |
431 | case SIOCAIFADDR_ISO: | |
432 | case SIOCDIFADDR_ISO: | |
433 | if (ifra->ifra_addr.siso_family == AF_ISO) | |
434 | for (oia = ia; ia; ia = ia->ia_next) { | |
435 | if (ia->ia_ifp == ifp && | |
436 | SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
437 | break; | |
438 | } | |
06c16dfa KM |
439 | if (error = suser(u.u_cred, &u.u_acflag)) |
440 | return (error); | |
56d0087e | 441 | if (ifp == 0) |
a50e2bc0 KS |
442 | panic("iso_control"); |
443 | if (ia == (struct iso_ifaddr *)0) { | |
444 | struct iso_ifaddr *nia; | |
445 | if (cmd == SIOCDIFADDR_ISO) | |
446 | return (EADDRNOTAVAIL); | |
447 | MALLOC(nia, struct iso_ifaddr *, sizeof(*nia), | |
448 | M_IFADDR, M_WAITOK); | |
449 | if (nia == (struct iso_ifaddr *)0) | |
450 | return (ENOBUFS); | |
451 | bzero((caddr_t)nia, sizeof(*nia)); | |
452 | if (ia = iso_ifaddr) { | |
453 | for ( ; ia->ia_next; ia = ia->ia_next) | |
454 | ; | |
455 | ia->ia_next = nia; | |
456 | } else | |
457 | iso_ifaddr = nia; | |
458 | ia = nia; | |
459 | if (ifa = ifp->if_addrlist) { | |
460 | for ( ; ifa->ifa_next; ifa = ifa->ifa_next) | |
461 | ; | |
462 | ifa->ifa_next = (struct ifaddr *) ia; | |
463 | } else | |
464 | ifp->if_addrlist = (struct ifaddr *) ia; | |
465 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
466 | ia->ia_ifa.ifa_dstaddr | |
467 | = (struct sockaddr *)&ia->ia_dstaddr; | |
468 | ia->ia_ifa.ifa_netmask | |
469 | = (struct sockaddr *)&ia->ia_sockmask; | |
470 | ia->ia_ifp = ifp; | |
471 | if (ifp != &loif) | |
472 | iso_interfaces++; | |
473 | } | |
474 | break; | |
56d0087e | 475 | |
a50e2bc0 KS |
476 | #define cmdbyte(x) (((x) >> 8) & 0xff) |
477 | default: | |
478 | if (cmdbyte(cmd) == 'a') | |
479 | return (snpac_ioctl(cmd, data)); | |
480 | if (ia == (struct iso_ifaddr *)0) | |
481 | return (EADDRNOTAVAIL); | |
482 | break; | |
483 | } | |
484 | switch (cmd) { | |
56d0087e | 485 | |
a50e2bc0 KS |
486 | case SIOCGIFADDR_ISO: |
487 | ifr->ifr_Addr = ia->ia_addr; | |
488 | break; | |
489 | ||
490 | case SIOCGIFDSTADDR_ISO: | |
491 | if ((ifp->if_flags & IFF_POINTOPOINT) == 0) | |
492 | return (EINVAL); | |
493 | ifr->ifr_Addr = ia->ia_dstaddr; | |
494 | break; | |
495 | ||
496 | case SIOCGIFNETMASK_ISO: | |
497 | ifr->ifr_Addr = ia->ia_sockmask; | |
498 | break; | |
499 | ||
500 | case SIOCAIFADDR_ISO: | |
a966c50c | 501 | maskIsNew = 0; hostIsNew = 1; error = 0; |
a50e2bc0 KS |
502 | if (ia->ia_addr.siso_family == AF_ISO) { |
503 | if (ifra->ifra_addr.siso_len == 0) { | |
504 | ifra->ifra_addr = ia->ia_addr; | |
505 | hostIsNew = 0; | |
506 | } else if (SAME_ISOADDR(&ia->ia_addr, &ifra->ifra_addr)) | |
507 | hostIsNew = 0; | |
508 | } | |
509 | if (ifra->ifra_mask.siso_len) { | |
510 | iso_ifscrub(ifp, ia); | |
511 | ia->ia_sockmask = ifra->ifra_mask; | |
512 | maskIsNew = 1; | |
513 | } | |
514 | if ((ifp->if_flags & IFF_POINTOPOINT) && | |
515 | (ifra->ifra_dstaddr.siso_family == AF_ISO)) { | |
516 | iso_ifscrub(ifp, ia); | |
517 | ia->ia_dstaddr = ifra->ifra_dstaddr; | |
518 | maskIsNew = 1; /* We lie; but the effect's the same */ | |
56d0087e | 519 | } |
a50e2bc0 KS |
520 | if (ifra->ifra_addr.siso_family == AF_ISO && |
521 | (hostIsNew || maskIsNew)) { | |
522 | error = iso_ifinit(ifp, ia, &ifra->ifra_addr, 0); | |
523 | } | |
524 | if (ifra->ifra_snpaoffset) | |
525 | ia->ia_snpaoffset = ifra->ifra_snpaoffset; | |
526 | return (error); | |
56d0087e | 527 | |
a50e2bc0 KS |
528 | case SIOCDIFADDR_ISO: |
529 | iso_ifscrub(ifp, ia); | |
530 | if ((ifa = ifp->if_addrlist) == (struct ifaddr *)ia) | |
531 | ifp->if_addrlist = ifa->ifa_next; | |
532 | else { | |
533 | while (ifa->ifa_next && | |
534 | (ifa->ifa_next != (struct ifaddr *)ia)) | |
535 | ifa = ifa->ifa_next; | |
536 | if (ifa->ifa_next) | |
537 | ifa->ifa_next = ((struct ifaddr *)ia)->ifa_next; | |
538 | else | |
539 | printf("Couldn't unlink isoifaddr from ifp\n"); | |
540 | } | |
541 | oia = ia; | |
542 | if (oia == (ia = iso_ifaddr)) { | |
543 | iso_ifaddr = ia->ia_next; | |
544 | } else { | |
545 | while (ia->ia_next && (ia->ia_next != oia)) { | |
546 | ia = ia->ia_next; | |
56d0087e | 547 | } |
a50e2bc0 KS |
548 | if (ia->ia_next) |
549 | ia->ia_next = oia->ia_next; | |
550 | else | |
551 | printf("Didn't unlink isoifadr from list\n"); | |
56d0087e | 552 | } |
a50e2bc0 KS |
553 | free((caddr_t)oia, M_IFADDR); |
554 | break; | |
56d0087e KS |
555 | |
556 | default: | |
557 | if (ifp == 0 || ifp->if_ioctl == 0) | |
558 | return (EOPNOTSUPP); | |
559 | return ((*ifp->if_ioctl)(ifp, cmd, data)); | |
560 | } | |
a50e2bc0 KS |
561 | return (0); |
562 | } | |
563 | ||
564 | /* | |
565 | * Delete any existing route for an interface. | |
566 | */ | |
567 | iso_ifscrub(ifp, ia) | |
568 | register struct ifnet *ifp; | |
569 | register struct iso_ifaddr *ia; | |
570 | { | |
c2bb180a | 571 | int nsellength = ia->ia_addr.siso_tlen; |
a50e2bc0 KS |
572 | if ((ia->ia_flags & IFA_ROUTE) == 0) |
573 | return; | |
c2bb180a | 574 | ia->ia_addr.siso_tlen = 0; |
a50e2bc0 KS |
575 | if (ifp->if_flags & IFF_LOOPBACK) |
576 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
577 | else if (ifp->if_flags & IFF_POINTOPOINT) | |
578 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, RTF_HOST); | |
579 | else { | |
580 | rtinit(&(ia->ia_ifa), (int)RTM_DELETE, 0); | |
581 | } | |
c2bb180a | 582 | ia->ia_addr.siso_tlen = nsellength; |
a50e2bc0 KS |
583 | ia->ia_flags &= ~IFA_ROUTE; |
584 | } | |
585 | ||
586 | /* | |
587 | * Initialize an interface's internet address | |
588 | * and routing table entry. | |
589 | */ | |
590 | iso_ifinit(ifp, ia, siso, scrub) | |
591 | register struct ifnet *ifp; | |
592 | register struct iso_ifaddr *ia; | |
593 | struct sockaddr_iso *siso; | |
594 | { | |
595 | struct sockaddr_iso oldaddr; | |
c2bb180a | 596 | int s = splimp(), error, nsellength; |
a50e2bc0 KS |
597 | |
598 | oldaddr = ia->ia_addr; | |
599 | ia->ia_addr = *siso; | |
600 | /* | |
601 | * Give the interface a chance to initialize | |
602 | * if this is its first address, | |
603 | * and to validate the address if necessary. | |
604 | */ | |
605 | if (ifp->if_ioctl && (error = (*ifp->if_ioctl)(ifp, SIOCSIFADDR, ia))) { | |
606 | splx(s); | |
607 | ia->ia_addr = oldaddr; | |
608 | return (error); | |
609 | } | |
610 | if (scrub) { | |
611 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&oldaddr; | |
612 | iso_ifscrub(ifp, ia); | |
613 | ia->ia_ifa.ifa_addr = (struct sockaddr *)&ia->ia_addr; | |
614 | } | |
c2bb180a KS |
615 | /* XXX -- The following is here temporarily out of laziness |
616 | in not changing every ethernet driver's if_ioctl routine */ | |
617 | if (ifp->if_output == ether_output) { | |
618 | ia->ia_ifa.ifa_rtrequest = llc_rtrequest; | |
619 | ia->ia_ifa.ifa_flags |= RTF_CLONING; | |
620 | ia->ia_ifa.ifa_llinfolen = sizeof(struct llinfo_llc); | |
621 | } | |
a50e2bc0 KS |
622 | /* |
623 | * Add route for the network. | |
624 | */ | |
c2bb180a KS |
625 | nsellength = ia->ia_addr.siso_tlen; |
626 | ia->ia_addr.siso_tlen = 0; | |
a50e2bc0 KS |
627 | if (ifp->if_flags & IFF_LOOPBACK) { |
628 | ia->ia_ifa.ifa_dstaddr = ia->ia_ifa.ifa_addr; | |
7b1cab50 | 629 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); |
a50e2bc0 KS |
630 | } else if (ifp->if_flags & IFF_POINTOPOINT && |
631 | ia->ia_dstaddr.siso_family == AF_ISO) | |
7b1cab50 | 632 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_HOST|RTF_UP); |
a50e2bc0 | 633 | else { |
7b1cab50 KS |
634 | rt_maskedcopy(ia->ia_ifa.ifa_addr, ia->ia_ifa.ifa_dstaddr, |
635 | ia->ia_ifa.ifa_netmask); | |
636 | error = rtinit(&(ia->ia_ifa), (int)RTM_ADD, RTF_UP); | |
a50e2bc0 | 637 | } |
c2bb180a | 638 | ia->ia_addr.siso_tlen = nsellength; |
a50e2bc0 KS |
639 | ia->ia_flags |= IFA_ROUTE; |
640 | splx(s); | |
7b1cab50 | 641 | return (error); |
56d0087e | 642 | } |
a50e2bc0 | 643 | #ifdef notdef |
56d0087e KS |
644 | |
645 | struct ifaddr * | |
646 | iso_ifwithidi(addr) | |
647 | register struct sockaddr *addr; | |
648 | { | |
649 | register struct ifnet *ifp; | |
650 | register struct ifaddr *ifa; | |
651 | register u_int af = addr->sa_family; | |
652 | ||
653 | if (af != AF_ISO) | |
654 | return (0); | |
655 | IFDEBUG(D_ROUTE) | |
656 | printf(">>> iso_ifwithidi addr\n"); | |
657 | dump_isoaddr( (struct sockaddr_iso *)(addr)); | |
658 | printf("\n"); | |
659 | ENDDEBUG | |
660 | for (ifp = ifnet; ifp; ifp = ifp->if_next) { | |
661 | IFDEBUG(D_ROUTE) | |
662 | printf("iso_ifwithidi ifnet %s\n", ifp->if_name); | |
663 | ENDDEBUG | |
664 | for (ifa = ifp->if_addrlist; ifa; ifa = ifa->ifa_next) { | |
665 | IFDEBUG(D_ROUTE) | |
666 | printf("iso_ifwithidi address "); | |
a50e2bc0 | 667 | dump_isoaddr( (struct sockaddr_iso *)(ifa->ifa_addr)); |
56d0087e | 668 | ENDDEBUG |
a50e2bc0 | 669 | if (ifa->ifa_addr->sa_family != addr->sa_family) |
56d0087e KS |
670 | continue; |
671 | ||
672 | #define IFA_SIS(ifa)\ | |
a50e2bc0 | 673 | ((struct sockaddr_iso *)((ifa)->ifa_addr)) |
56d0087e KS |
674 | |
675 | IFDEBUG(D_ROUTE) | |
676 | printf(" af same, args to iso_eqtype:\n"); | |
677 | printf("0x%x ", IFA_SIS(ifa)->siso_addr); | |
678 | printf(" 0x%x\n", | |
679 | &(((struct sockaddr_iso *)addr)->siso_addr)); | |
680 | ENDDEBUG | |
681 | ||
682 | if (iso_eqtype(&(IFA_SIS(ifa)->siso_addr), | |
683 | &(((struct sockaddr_iso *)addr)->siso_addr))) { | |
684 | IFDEBUG(D_ROUTE) | |
685 | printf("ifa_ifwithidi: ifa found\n"); | |
686 | ENDDEBUG | |
687 | return (ifa); | |
688 | } | |
689 | IFDEBUG(D_ROUTE) | |
690 | printf(" iso_eqtype failed\n"); | |
691 | ENDDEBUG | |
692 | } | |
693 | } | |
694 | return ((struct ifaddr *)0); | |
695 | } | |
696 | ||
a50e2bc0 | 697 | #endif notdef |
56d0087e KS |
698 | /* |
699 | * FUNCTION: iso_ck_addr | |
700 | * | |
701 | * PURPOSE: return true if the iso_addr passed is | |
702 | * within the legal size limit for an iso address. | |
703 | * | |
704 | * RETURNS: true or false | |
705 | * | |
706 | * SIDE EFFECTS: | |
707 | * | |
708 | */ | |
709 | iso_ck_addr(isoa) | |
710 | struct iso_addr *isoa; /* address to check */ | |
711 | { | |
712 | return (isoa->isoa_len <= 20); | |
713 | ||
714 | } | |
715 | ||
a50e2bc0 | 716 | #ifdef notdef |
56d0087e KS |
717 | /* |
718 | * FUNCTION: iso_eqtype | |
719 | * | |
720 | * PURPOSE: Determine if two iso addresses are of the same type. | |
721 | * This is flaky. Really we should consider all type 47 addrs to be the | |
722 | * same - but there do exist different structures for 47 addrs. | |
723 | * Gosip adds a 3rd. | |
724 | * | |
725 | * RETURNS: true if the addresses are the same type | |
726 | * | |
727 | * SIDE EFFECTS: | |
728 | * | |
729 | * NOTES: By type, I mean rfc986, t37, or osinet | |
730 | * | |
731 | * This will first compare afis. If they match, then | |
732 | * if the addr is not t37, the idis must be compared. | |
733 | */ | |
734 | iso_eqtype(isoaa, isoab) | |
735 | struct iso_addr *isoaa; /* first addr to check */ | |
736 | struct iso_addr *isoab; /* other addr to check */ | |
737 | { | |
738 | if (isoaa->isoa_afi == isoab->isoa_afi) { | |
739 | if (isoaa->isoa_afi == AFI_37) | |
740 | return(1); | |
741 | else | |
742 | return (!bcmp(&isoaa->isoa_u, &isoab->isoa_u, 2)); | |
743 | } | |
744 | return(0); | |
745 | } | |
a50e2bc0 | 746 | #endif notdef |
56d0087e | 747 | /* |
a50e2bc0 | 748 | * FUNCTION: iso_localifa() |
56d0087e | 749 | * |
a50e2bc0 KS |
750 | * PURPOSE: Find an interface addresss having a given destination |
751 | * or at least matching the net. | |
56d0087e KS |
752 | * |
753 | * RETURNS: ptr to an interface address | |
754 | * | |
755 | * SIDE EFFECTS: | |
756 | * | |
757 | * NOTES: | |
758 | */ | |
759 | struct iso_ifaddr * | |
a50e2bc0 KS |
760 | iso_localifa(siso) |
761 | register struct sockaddr_iso *siso; | |
56d0087e KS |
762 | { |
763 | register struct iso_ifaddr *ia; | |
a50e2bc0 KS |
764 | register char *cp1, *cp2, *cp3; |
765 | register struct ifnet *ifp; | |
766 | struct iso_ifaddr *ia_maybe = 0; | |
767 | /* | |
768 | * We make one pass looking for both net matches and an exact | |
769 | * dst addr. | |
770 | */ | |
771 | for (ia = iso_ifaddr; ia; ia = ia->ia_next) { | |
772 | if ((ifp = ia->ia_ifp) == 0 || ((ifp->if_flags & IFF_UP) == 0)) | |
773 | continue; | |
774 | if (ifp->if_flags & IFF_POINTOPOINT) { | |
775 | if ((ia->ia_dstaddr.siso_family == AF_ISO) && | |
776 | SAME_ISOADDR(&ia->ia_dstaddr, siso)) | |
777 | return (ia); | |
778 | else | |
779 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
780 | ia_maybe = ia; | |
781 | continue; | |
782 | } | |
783 | if (ia->ia_sockmask.siso_len) { | |
784 | char *cplim = ia->ia_sockmask.siso_len + (char *)&ia->ia_sockmask; | |
785 | cp1 = ia->ia_sockmask.siso_data; | |
786 | cp2 = siso->siso_data; | |
787 | cp3 = ia->ia_addr.siso_data; | |
0d552c85 | 788 | while (cp1 < cplim) |
a50e2bc0 KS |
789 | if (*cp1++ & (*cp2++ ^ *cp3++)) |
790 | goto next; | |
791 | ia_maybe = ia; | |
792 | } | |
793 | if (SAME_ISOADDR(&ia->ia_addr, siso)) | |
794 | return ia; | |
795 | next:; | |
796 | } | |
797 | return ia_maybe; | |
56d0087e KS |
798 | } |
799 | ||
800 | #ifdef NARGOXTWENTYFIVE > 0 | |
801 | #include "cons.h" | |
802 | #endif NARGOXTWENTYFIVE > 0 | |
803 | /* | |
804 | * FUNCTION: iso_nlctloutput | |
805 | * | |
806 | * PURPOSE: Set options at the network level | |
807 | * | |
808 | * RETURNS: E* | |
809 | * | |
810 | * SIDE EFFECTS: | |
811 | * | |
812 | * NOTES: This could embody some of the functions of | |
813 | * rclnp_ctloutput and cons_ctloutput. | |
814 | */ | |
815 | iso_nlctloutput(cmd, optname, pcb, m) | |
816 | int cmd; /* command:set or get */ | |
817 | int optname; /* option of interest */ | |
818 | caddr_t pcb; /* nl pcb */ | |
819 | struct mbuf *m; /* data for set, buffer for get */ | |
820 | { | |
821 | struct isopcb *isop = (struct isopcb *)pcb; | |
822 | int error = 0; /* return value */ | |
823 | caddr_t data; /* data for option */ | |
824 | int data_len; /* data's length */ | |
825 | ||
826 | IFDEBUG(D_ISO) | |
827 | printf("iso_nlctloutput: cmd %x, opt %x, pcb %x, m %x\n", | |
828 | cmd, optname, pcb, m); | |
829 | ENDDEBUG | |
830 | ||
831 | if ((cmd != PRCO_GETOPT) && (cmd != PRCO_SETOPT)) | |
832 | return(EOPNOTSUPP); | |
833 | ||
834 | data = mtod(m, caddr_t); | |
835 | data_len = (m)->m_len; | |
836 | ||
837 | IFDEBUG(D_ISO) | |
838 | printf("iso_nlctloutput: data is:\n"); | |
839 | dump_buf(data, data_len); | |
840 | ENDDEBUG | |
841 | ||
842 | switch (optname) { | |
843 | ||
844 | #ifdef NARGOXTWENTYFIVE > 0 | |
845 | case CONSOPT_X25CRUD: | |
846 | if (cmd == PRCO_GETOPT) { | |
847 | error = EOPNOTSUPP; | |
848 | break; | |
849 | } | |
850 | ||
851 | if (data_len > MAXX25CRUDLEN) { | |
852 | error = EINVAL; | |
853 | break; | |
854 | } | |
855 | ||
856 | IFDEBUG(D_ISO) | |
857 | printf("iso_nlctloutput: setting x25 crud\n"); | |
858 | ENDDEBUG | |
859 | ||
a50e2bc0 | 860 | bcopy(data, (caddr_t)isop->isop_x25crud, (unsigned)data_len); |
56d0087e KS |
861 | isop->isop_x25crud_len = data_len; |
862 | break; | |
863 | #endif NARGOXTWENTYFIVE > 0 | |
864 | ||
865 | default: | |
866 | error = EOPNOTSUPP; | |
867 | } | |
868 | ||
869 | return error; | |
870 | } | |
56d0087e KS |
871 | #endif ISO |
872 | ||
873 | #ifdef ARGO_DEBUG | |
874 | ||
875 | /* | |
876 | * FUNCTION: dump_isoaddr | |
877 | * | |
878 | * PURPOSE: debugging | |
879 | * | |
880 | * RETURNS: nada | |
881 | * | |
882 | */ | |
883 | dump_isoaddr(s) | |
884 | struct sockaddr_iso *s; | |
885 | { | |
a50e2bc0 | 886 | char *clnp_saddr_isop(); |
56d0087e KS |
887 | register int i; |
888 | ||
889 | if( s->siso_family == AF_ISO) { | |
a50e2bc0 | 890 | printf("ISO address: suffixlen %d, %s\n", |
44f52ea5 | 891 | s->siso_tlen, clnp_saddr_isop(s)); |
56d0087e KS |
892 | } else if( s->siso_family == AF_INET) { |
893 | /* hack */ | |
894 | struct sockaddr_in *sin = (struct sockaddr_in *)s; | |
895 | ||
896 | printf("%d.%d.%d.%d: %d", | |
897 | (sin->sin_addr.s_addr>>24)&0xff, | |
898 | (sin->sin_addr.s_addr>>16)&0xff, | |
899 | (sin->sin_addr.s_addr>>8)&0xff, | |
900 | (sin->sin_addr.s_addr)&0xff, | |
901 | sin->sin_port); | |
902 | } | |
903 | } | |
904 | ||
905 | #endif ARGO_DEBUG |