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238ab140 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 | * ARGO TP | |
a50e2bc0 KS |
29 | * $Header: /var/src/sys/netiso/RCS/tp_iso.c,v 5.1 89/02/09 16:20:51 hagens Exp $ |
30 | * $Source: /var/src/sys/netiso/RCS/tp_iso.c,v $ | |
238ab140 KS |
31 | * |
32 | * Here is where you find the iso-dependent code. We've tried | |
33 | * keep all net-level and (primarily) address-family-dependent stuff | |
34 | * out of the tp source, and everthing here is reached indirectly | |
35 | * through a switch table (struct nl_protosw *) tpcb->tp_nlproto | |
36 | * (see tp_pcb.c). | |
37 | * The routines here are: | |
38 | * iso_getsufx: gets transport suffix out of an isopcb structure. | |
39 | * iso_putsufx: put transport suffix into an isopcb structure. | |
40 | * iso_putnetaddr: put a whole net addr into an isopcb. | |
41 | * iso_getnetaddr: get a whole net addr from an isopcb. | |
42 | * iso_recycle_suffix: clear suffix for reuse in isopcb | |
43 | * tpclnp_ctlinput: handle ER CNLPdu : icmp-like stuff | |
44 | * tpclnp_mtu: figure out what size tpdu to use | |
45 | * tpclnp_input: take a pkt from clnp, strip off its clnp header, | |
46 | * give to tp | |
47 | * tpclnp_output_dg: package a pkt for clnp given 2 addresses & some data | |
48 | * tpclnp_output: package a pkt for clnp given an isopcb & some data | |
49 | */ | |
50 | ||
51 | #ifndef lint | |
a50e2bc0 | 52 | static char *rcsid = "$Header: /var/src/sys/netiso/RCS/tp_iso.c,v 5.1 89/02/09 16:20:51 hagens Exp $"; |
238ab140 KS |
53 | #endif lint |
54 | ||
55 | #ifdef ISO | |
56 | ||
a50e2bc0 KS |
57 | #include "param.h" |
58 | #include "socket.h" | |
59 | #include "socketvar.h" | |
60 | #include "domain.h" | |
61 | #include "malloc.h" | |
62 | #include "mbuf.h" | |
63 | #include "errno.h" | |
64 | #include "time.h" | |
65 | #include "protosw.h" | |
66 | ||
238ab140 KS |
67 | #include "../net/if.h" |
68 | #include "../net/route.h" | |
238ab140 | 69 | |
a50e2bc0 KS |
70 | #include "argo_debug.h" |
71 | #include "tp_param.h" | |
72 | #include "tp_stat.h" | |
73 | #include "tp_pcb.h" | |
74 | #include "tp_trace.h" | |
75 | #include "tp_stat.h" | |
76 | #include "tp_tpdu.h" | |
77 | #include "tp_clnp.h" | |
238ab140 KS |
78 | |
79 | /* | |
80 | * CALLED FROM: | |
81 | * pr_usrreq() on PRU_BIND, PRU_CONNECT, PRU_ACCEPT, and PRU_PEERADDR | |
a50e2bc0 | 82 | * FUNCTION, ARGUMENTS: |
238ab140 KS |
83 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. |
84 | */ | |
85 | ||
a50e2bc0 | 86 | iso_getsufx(isop, lenp, data_out, which) |
238ab140 | 87 | struct isopcb *isop; |
a50e2bc0 KS |
88 | u_short *lenp; |
89 | caddr_t data_out; | |
238ab140 KS |
90 | int which; |
91 | { | |
a50e2bc0 KS |
92 | register struct sockaddr_iso *addr = 0; |
93 | ||
238ab140 KS |
94 | switch (which) { |
95 | case TP_LOCAL: | |
a50e2bc0 KS |
96 | addr = isop->isop_laddr; |
97 | break; | |
238ab140 KS |
98 | |
99 | case TP_FOREIGN: | |
a50e2bc0 | 100 | addr = isop->isop_faddr; |
238ab140 | 101 | } |
a50e2bc0 KS |
102 | if (addr) |
103 | bcopy(TSEL(addr), data_out, (*lenp = addr->siso_tsuffixlen)); | |
238ab140 KS |
104 | } |
105 | ||
106 | /* CALLED FROM: | |
107 | * tp_newsocket(); i.e., when a connection is being established by an | |
108 | * incoming CR_TPDU. | |
109 | * | |
110 | * FUNCTION, ARGUMENTS: | |
111 | * Put a transport suffix (found in name) into an isopcb structure (isop). | |
112 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. | |
113 | */ | |
114 | void | |
a50e2bc0 | 115 | iso_putsufx(isop, sufxloc, sufxlen, which) |
238ab140 | 116 | struct isopcb *isop; |
a50e2bc0 KS |
117 | caddr_t sufxloc; |
118 | int sufxlen, which; | |
238ab140 | 119 | { |
a50e2bc0 KS |
120 | struct sockaddr_iso **dst, *backup; |
121 | register struct sockaddr_iso *addr; | |
122 | struct mbuf *m; | |
123 | int len; | |
124 | ||
238ab140 | 125 | switch (which) { |
a50e2bc0 KS |
126 | default: |
127 | return; | |
128 | ||
238ab140 | 129 | case TP_LOCAL: |
a50e2bc0 KS |
130 | dst = &isop->isop_laddr; |
131 | backup = &isop->isop_sladdr; | |
238ab140 | 132 | break; |
a50e2bc0 | 133 | |
238ab140 | 134 | case TP_FOREIGN: |
a50e2bc0 KS |
135 | dst = &isop->isop_faddr; |
136 | backup = &isop->isop_sfaddr; | |
137 | } | |
138 | if ((addr = *dst) == 0) { | |
139 | addr = *dst = backup; | |
140 | addr->siso_nlen = 0; | |
141 | addr->siso_ssuffixlen = 0; | |
142 | printf("iso_putsufx on un-initialized isopcb\n"); | |
238ab140 | 143 | } |
a50e2bc0 KS |
144 | len = sufxlen + addr->siso_nlen + |
145 | (sizeof(struct sockaddr_iso) - sizeof(struct iso_addr)); | |
146 | if (addr == backup) { | |
147 | if (len > sizeof(isop->isop_sladdr)) { | |
148 | m = m_getclr(M_DONTWAIT, MT_SONAME); | |
149 | if (m == 0) | |
150 | return; | |
151 | addr = *dst = mtod(m, struct sockaddr_iso *); | |
152 | *addr = *backup; | |
153 | m->m_len = len; | |
154 | } | |
155 | } else | |
156 | dtom(addr)->m_len = len; | |
157 | bcopy(sufxloc, TSEL(addr), sufxlen); | |
158 | addr->siso_tsuffixlen = sufxlen; | |
159 | addr->siso_len = len; | |
238ab140 KS |
160 | } |
161 | ||
162 | /* | |
163 | * CALLED FROM: | |
164 | * tp.trans whenever we go into REFWAIT state. | |
165 | * FUNCTION and ARGUMENT: | |
166 | * Called when a ref is frozen, to allow the suffix to be reused. | |
167 | * (isop) is the net level pcb. This really shouldn't have to be | |
168 | * done in a NET level pcb but... for the internet world that just | |
169 | * the way it is done in BSD... | |
170 | * The alternative is to have the port unusable until the reference | |
171 | * timer goes off. | |
172 | */ | |
173 | void | |
174 | iso_recycle_tsuffix(isop) | |
175 | struct isopcb *isop; | |
176 | { | |
a50e2bc0 | 177 | isop->isop_laddr->siso_tsuffixlen = isop->isop_faddr->siso_tsuffixlen = 0; |
238ab140 KS |
178 | } |
179 | ||
180 | /* | |
181 | * CALLED FROM: | |
182 | * tp_newsocket(); i.e., when a connection is being established by an | |
183 | * incoming CR_TPDU. | |
184 | * | |
185 | * FUNCTION and ARGUMENTS: | |
186 | * Copy a whole net addr from a struct sockaddr (name). | |
187 | * into an isopcb (isop). | |
188 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN | |
189 | */ | |
190 | void | |
191 | iso_putnetaddr(isop, name, which) | |
192 | register struct isopcb *isop; | |
193 | struct sockaddr_iso *name; | |
194 | int which; | |
195 | { | |
a50e2bc0 KS |
196 | struct sockaddr_iso **sisop, *backup; |
197 | register struct sockaddr_iso *siso; | |
198 | ||
238ab140 KS |
199 | switch (which) { |
200 | case TP_LOCAL: | |
a50e2bc0 KS |
201 | sisop = &isop->isop_laddr; |
202 | backup = &isop->isop_sladdr; | |
238ab140 KS |
203 | break; |
204 | case TP_FOREIGN: | |
a50e2bc0 KS |
205 | sisop = &isop->isop_faddr; |
206 | backup = &isop->isop_sfaddr; | |
238ab140 | 207 | } |
a50e2bc0 KS |
208 | siso = ((*sisop == 0) ? (*sisop = backup) : *sisop); |
209 | IFDEBUG(D_TPISO) | |
210 | printf("ISO_PUTNETADDR\n"); | |
211 | dump_isoaddr(isop->isop_faddr); | |
212 | ENDDEBUG | |
213 | siso->siso_addr = name->siso_addr; | |
238ab140 KS |
214 | } |
215 | ||
216 | /* | |
217 | * CALLED FROM: | |
218 | * pr_usrreq() PRU_SOCKADDR, PRU_ACCEPT, PRU_PEERADDR | |
219 | * FUNCTION and ARGUMENTS: | |
220 | * Copy a whole net addr from an isopcb (isop) into | |
221 | * a struct sockaddr (name). | |
222 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN. | |
223 | */ | |
224 | ||
225 | void | |
226 | iso_getnetaddr( isop, name, which) | |
227 | struct isopcb *isop; | |
a50e2bc0 | 228 | struct mbuf *name; |
238ab140 KS |
229 | int which; |
230 | { | |
a50e2bc0 KS |
231 | struct sockaddr_iso *siso = |
232 | (which == TP_LOCAL ? isop->isop_laddr : isop->isop_faddr); | |
233 | if (siso) | |
234 | bcopy((caddr_t)siso, mtod(name, caddr_t), | |
235 | (unsigned)(name->m_len = siso->siso_len)); | |
236 | else | |
237 | name->m_len = 0; | |
238ab140 KS |
238 | } |
239 | ||
240 | /* | |
241 | * CALLED FROM: | |
242 | * tp_input() on incoming CR, CC, and pr_usrreq() for PRU_CONNECT | |
243 | * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE: | |
244 | * Determine the proper maximum transmission unit, i.e., MTU, to use, given | |
245 | * a) the header size for the network protocol and the max transmission | |
246 | * unit on the subnet interface, determined from the information in (isop), | |
247 | * b) the max size negotiated so far (negot) | |
248 | * c) the window size used by the tp connection (found in so), | |
249 | * | |
250 | * The result is put in the integer *size in its integer form and in | |
251 | * *negot in its logarithmic form. | |
252 | * | |
253 | * The rules are: | |
254 | * a) can only negotiate down from the value found in *negot. | |
255 | * b) the MTU must be < the windowsize, | |
256 | * c) If src and dest are on the same net, | |
257 | * we will negotiate the closest size larger than MTU but really USE | |
258 | * the actual device mtu - ll hdr sizes. | |
259 | * otherwise we negotiate the closest size smaller than MTU - ll hdr sizes. | |
260 | */ | |
261 | ||
262 | void | |
263 | tpclnp_mtu(so, isop, size, negot ) | |
264 | struct socket *so; | |
265 | struct isopcb *isop; | |
266 | int *size; | |
267 | u_char *negot; | |
268 | { | |
269 | struct ifnet *ifp; | |
a50e2bc0 | 270 | struct iso_ifaddr *ia; |
238ab140 KS |
271 | register int i; |
272 | int windowsize = so->so_rcv.sb_hiwat; | |
273 | int clnp_size; | |
274 | int sizeismtu = 0; | |
275 | ||
a50e2bc0 | 276 | struct iso_ifaddr *iso_routeifa(); |
238ab140 KS |
277 | |
278 | IFDEBUG(D_CONN) | |
279 | printf("tpclnp_mtu(0x%x,0x%x,0x%x,0x%x)\n", so, isop, size, negot); | |
280 | ENDDEBUG | |
281 | IFTRACE(D_CONN) | |
282 | tptrace(TPPTmisc, "ENTER GET MTU: size negot \n",*size, *negot, 0, 0); | |
283 | ENDTRACE | |
284 | ||
285 | *size = 1 << *negot; | |
286 | ||
287 | if( *size > windowsize ) { | |
288 | *size = windowsize; | |
289 | } | |
290 | ||
a50e2bc0 KS |
291 | if (((ia = iso_routeifa(isop->isop_faddr)) == 0) |
292 | || (ifp = ia->ia_ifp) == 0) | |
238ab140 KS |
293 | return; |
294 | ||
295 | /* TODO - make this indirect off the socket structure to the | |
296 | * network layer to get headersize | |
297 | */ | |
a50e2bc0 KS |
298 | if (isop->isop_laddr) |
299 | clnp_size = clnp_hdrsize(isop->isop_laddr->siso_addr.isoa_len); | |
300 | else | |
301 | clnp_size = 20; | |
238ab140 KS |
302 | |
303 | if(*size > ifp->if_mtu - clnp_size) { | |
304 | *size = ifp->if_mtu - clnp_size; | |
305 | sizeismtu = 1; | |
306 | } | |
238ab140 KS |
307 | /* have to transform size to the log2 of size */ |
308 | for(i=TP_MIN_TPDUSIZE; (i<TP_MAX_TPDUSIZE && ((1<<i) <= *size)) ; i++) | |
309 | ; | |
310 | i--; | |
311 | ||
a50e2bc0 KS |
312 | IFTRACE(D_CONN) |
313 | tptrace(TPPTmisc, "GET MTU MID: tpcb size negot i \n", | |
314 | *size, *negot, i, 0); | |
315 | ENDTRACE | |
316 | ||
238ab140 KS |
317 | /* are we on the same LAN? if so, negotiate one tpdu size larger, |
318 | * and actually send the real mtu size | |
319 | */ | |
a50e2bc0 | 320 | if (iso_localifa(isop->isop_faddr)) { |
238ab140 KS |
321 | i++; |
322 | } else { | |
323 | *size = 1<<i; | |
324 | } | |
325 | *negot = i; | |
326 | ||
327 | IFDEBUG(D_CONN) | |
328 | printf("GET MTU RETURNS: ifp %s size 0x%x negot 0x%x\n", | |
329 | ifp->if_name, *size, *negot); | |
330 | ENDDEBUG | |
331 | IFTRACE(D_CONN) | |
332 | tptrace(TPPTmisc, "EXIT GET MTU: tpcb size negot \n", | |
333 | *size, *negot, 0, 0); | |
334 | ENDTRACE | |
335 | } | |
336 | ||
337 | ||
338 | /* | |
339 | * CALLED FROM: | |
340 | * tp_emit() | |
341 | * FUNCTION and ARGUMENTS: | |
342 | * Take a packet(m0) from tp and package it so that clnp will accept it. | |
343 | * This means prepending space for the clnp header and filling in a few | |
344 | * of the fields. | |
345 | * inp is the isopcb structure; datalen is the length of the data in the | |
346 | * mbuf string m0. | |
347 | * RETURN VALUE: | |
348 | * whatever (E*) is returned form the net layer output routine. | |
349 | */ | |
350 | ||
351 | int | |
352 | tpclnp_output(isop, m0, datalen, nochksum) | |
353 | struct isopcb *isop; | |
354 | struct mbuf *m0; | |
355 | int datalen; | |
356 | int nochksum; | |
357 | { | |
a50e2bc0 | 358 | register struct mbuf *m = m0; |
238ab140 KS |
359 | IncStat(ts_tpdu_sent); |
360 | ||
361 | IFDEBUG(D_TPISO) | |
362 | struct tpdu *hdr = mtod(m0, struct tpdu *); | |
363 | ||
364 | printf( | |
365 | "abt to call clnp_output: datalen 0x%x, hdr.li 0x%x, hdr.dutype 0x%x nocsum x%x dst addr:\n", | |
366 | datalen, | |
367 | (int)hdr->tpdu_li, (int)hdr->tpdu_type, nochksum); | |
a50e2bc0 | 368 | dump_isoaddr(isop->isop_faddr); |
238ab140 | 369 | printf("\nsrc addr:\n"); |
a50e2bc0 | 370 | dump_isoaddr(isop->isop_laddr); |
238ab140 KS |
371 | dump_mbuf(m0, "at tpclnp_output"); |
372 | ENDDEBUG | |
a50e2bc0 KS |
373 | if ((m->m_flags & M_PKTHDR) == 0) { |
374 | IFDEBUG(D_TPISO) | |
375 | printf("tpclnp_output: non headered mbuf"); | |
376 | ENDDEBUG | |
377 | MGETHDR(m, M_DONTWAIT, MT_DATA); | |
378 | if (m == 0) { | |
379 | m_freem(m0); | |
380 | return ENOBUFS; | |
381 | } | |
382 | m->m_next = m0; | |
383 | m->m_len = 0; | |
384 | m->m_pkthdr.len = datalen; | |
385 | m0 = m; | |
386 | } | |
238ab140 KS |
387 | |
388 | return | |
a50e2bc0 | 389 | clnp_output(m0, isop, /* flags */nochksum ? CLNP_NO_CKSUM : 0); |
238ab140 KS |
390 | } |
391 | ||
392 | /* | |
393 | * CALLED FROM: | |
394 | * tp_error_emit() | |
395 | * FUNCTION and ARGUMENTS: | |
396 | * This is a copy of tpclnp_output that takes the addresses | |
397 | * instead of a pcb. It's used by the tp_error_emit, when we | |
398 | * don't have an iso_pcb with which to call the normal output rtn. | |
399 | * RETURN VALUE: | |
400 | * ENOBUFS or | |
401 | * whatever (E*) is returned form the net layer output routine. | |
402 | */ | |
403 | ||
404 | int | |
405 | tpclnp_output_dg(laddr, faddr, m0, datalen, ro, nochksum) | |
406 | struct iso_addr *laddr, *faddr; | |
407 | struct mbuf *m0; | |
408 | int datalen; | |
409 | struct route *ro; | |
410 | int nochksum; | |
411 | { | |
412 | struct isopcb tmppcb; | |
238ab140 KS |
413 | int err; |
414 | int flags; | |
a50e2bc0 | 415 | register struct mbuf *m = m0; |
238ab140 KS |
416 | |
417 | IFDEBUG(D_TPISO) | |
418 | printf("tpclnp_output_dg datalen 0x%x m0 0x%x\n", datalen, m0); | |
419 | ENDDEBUG | |
420 | ||
421 | /* | |
422 | * Fill in minimal portion of isopcb so that clnp can send the | |
423 | * packet. | |
424 | */ | |
425 | bzero((caddr_t)&tmppcb, sizeof(tmppcb)); | |
a50e2bc0 KS |
426 | tmppcb.isop_laddr = &tmppcb.isop_sladdr; |
427 | tmppcb.isop_laddr->siso_addr = *laddr; | |
428 | tmppcb.isop_faddr = &tmppcb.isop_sfaddr; | |
429 | tmppcb.isop_faddr->siso_addr = *faddr; | |
238ab140 KS |
430 | |
431 | IFDEBUG(D_TPISO) | |
432 | printf("tpclnp_output_dg faddr: \n"); | |
a50e2bc0 | 433 | dump_isoaddr(&tmppcb.isop_sfaddr); |
238ab140 | 434 | printf("\ntpclnp_output_dg laddr: \n"); |
a50e2bc0 | 435 | dump_isoaddr(&tmppcb.isop_sladdr); |
238ab140 KS |
436 | printf("\n"); |
437 | ENDDEBUG | |
438 | ||
439 | /* | |
440 | * Do not use packet cache since this is a one shot error packet | |
441 | */ | |
442 | flags = (CLNP_NOCACHE|(nochksum?CLNP_NO_CKSUM:0)); | |
443 | ||
444 | IncStat(ts_tpdu_sent); | |
445 | ||
a50e2bc0 KS |
446 | if ((m->m_flags & M_PKTHDR) == 0) { |
447 | printf("tpclnp_output: non headered mbuf"); | |
448 | MGETHDR(m, M_DONTWAIT, MT_DATA); | |
449 | if (m == 0) { | |
450 | m_freem(m0); | |
451 | return ENOBUFS; | |
452 | } | |
453 | m->m_next = m0; | |
454 | m->m_len = 0; | |
455 | m->m_pkthdr.len = datalen; | |
456 | m0 = m; | |
457 | } | |
458 | err = clnp_output(m0, &tmppcb, flags); | |
238ab140 KS |
459 | |
460 | /* | |
461 | * Free route allocated by clnp (if the route was indeed allocated) | |
462 | */ | |
463 | if (tmppcb.isop_route.ro_rt) | |
464 | RTFREE(tmppcb.isop_route.ro_rt); | |
465 | ||
466 | return(err); | |
467 | } | |
a50e2bc0 | 468 | extern struct sockaddr_iso blank_siso; |
238ab140 KS |
469 | /* |
470 | * CALLED FROM: | |
471 | * clnp's input routine, indirectly through the protosw. | |
472 | * FUNCTION and ARGUMENTS: | |
473 | * Take a packet (m) from clnp, strip off the clnp header and give it to tp | |
474 | * No return value. | |
475 | */ | |
476 | ProtoHook | |
477 | tpclnp_input(m, faddr, laddr, clnp_len) | |
478 | struct mbuf *m; | |
479 | struct iso_addr *faddr, *laddr; | |
480 | int clnp_len; | |
481 | { | |
482 | struct sockaddr_iso src, dst; | |
483 | int s = splnet(); | |
a50e2bc0 | 484 | struct mbuf *tp_inputprep(); |
238ab140 KS |
485 | |
486 | IncStat(ts_pkt_rcvd); | |
487 | ||
488 | IFDEBUG(D_TPINPUT) | |
489 | printf("tpclnp_input: m 0x%x clnp_len 0x%x\n", m, clnp_len); | |
490 | dump_mbuf(m, "at tpclnp_input"); | |
491 | ENDDEBUG | |
492 | /* | |
493 | * CLNP gives us an mbuf chain WITH the clnp header pulled up, | |
494 | * and the length of the clnp header. | |
495 | * First, strip off the Clnp header. leave the mbuf there for the | |
496 | * pullup that follows. | |
497 | */ | |
498 | ||
499 | m->m_len -= clnp_len; | |
a50e2bc0 | 500 | m->m_data += clnp_len; |
238ab140 | 501 | |
a50e2bc0 | 502 | m = tp_inputprep(m); |
238ab140 KS |
503 | |
504 | IFDEBUG(D_TPINPUT) | |
505 | dump_mbuf(m, "after tpclnp_input both pullups"); | |
506 | ENDDEBUG | |
507 | ||
a50e2bc0 KS |
508 | src = blank_siso; dst = blank_siso; |
509 | bcopy((caddr_t)faddr, (caddr_t)&src.siso_addr, 1 + faddr->isoa_len); | |
510 | bcopy((caddr_t)laddr, (caddr_t)&dst.siso_addr, 1 + laddr->isoa_len); | |
238ab140 KS |
511 | |
512 | IFDEBUG(D_TPISO) | |
513 | printf("calling tp_input: &src 0x%x &dst 0x%x, src addr:\n", | |
514 | &src, &dst); | |
515 | printf(" dst addr:\n"); | |
516 | dump_isoaddr(&src); | |
517 | dump_isoaddr(&dst); | |
518 | ENDDEBUG | |
519 | ||
a50e2bc0 KS |
520 | (void) tp_input(m, (struct sockaddr *)&src, (struct sockaddr *)&dst, |
521 | 0, tpclnp_output_dg); | |
238ab140 KS |
522 | |
523 | IFDEBUG(D_QUENCH) | |
524 | { | |
525 | if(time.tv_usec & 0x4 && time.tv_usec & 0x40) { | |
526 | printf("tpclnp_input: FAKING %s\n", | |
527 | tp_stat.ts_pkt_rcvd & 0x1?"QUENCH":"QUENCH2"); | |
528 | if(tp_stat.ts_pkt_rcvd & 0x1) { | |
529 | tpclnp_ctlinput(PRC_QUENCH, &src); | |
530 | } else { | |
531 | tpclnp_ctlinput(PRC_QUENCH2, &src); | |
532 | } | |
533 | } | |
534 | } | |
535 | ENDDEBUG | |
536 | ||
537 | splx(s); | |
538 | return 0; | |
238ab140 KS |
539 | } |
540 | ||
541 | ProtoHook | |
542 | iso_rtchange() | |
543 | { | |
544 | return 0; | |
545 | } | |
546 | ||
547 | /* | |
548 | * CALLED FROM: | |
549 | * tpclnp_ctlinput() | |
550 | * FUNCTION and ARGUMENTS: | |
551 | * find the tpcb pointer and pass it to tp_quench | |
552 | */ | |
553 | void | |
554 | tpiso_decbit(isop) | |
555 | struct isopcb *isop; | |
556 | { | |
a50e2bc0 | 557 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH2); |
238ab140 KS |
558 | } |
559 | /* | |
560 | * CALLED FROM: | |
561 | * tpclnp_ctlinput() | |
562 | * FUNCTION and ARGUMENTS: | |
563 | * find the tpcb pointer and pass it to tp_quench | |
564 | */ | |
565 | void | |
566 | tpiso_quench(isop) | |
567 | struct isopcb *isop; | |
568 | { | |
a50e2bc0 | 569 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH); |
238ab140 KS |
570 | } |
571 | ||
572 | /* | |
573 | * CALLED FROM: | |
574 | * The network layer through the protosw table. | |
575 | * FUNCTION and ARGUMENTS: | |
576 | * When clnp an ICMP-like msg this gets called. | |
577 | * It either returns an error status to the user or | |
578 | * it causes all connections on this address to be aborted | |
579 | * by calling the appropriate xx_notify() routine. | |
580 | * (cmd) is the type of ICMP error. | |
581 | * (siso) is the address of the guy who sent the ER CLNPDU | |
582 | */ | |
583 | ProtoHook | |
584 | tpclnp_ctlinput(cmd, siso) | |
585 | int cmd; | |
586 | struct sockaddr_iso *siso; | |
a50e2bc0 KS |
587 | { |
588 | return tpclnp_ctlinput1(cmd, &siso->siso_addr); | |
589 | } | |
590 | ||
591 | /* | |
592 | * Entry to ctlinput with argument of an iso_addr rather than a sockaddr | |
593 | */ | |
594 | ProtoHook | |
595 | tpclnp_ctlinput1(cmd, isoa) | |
596 | int cmd; | |
597 | struct iso_addr *isoa; | |
238ab140 KS |
598 | { |
599 | extern u_char inetctlerrmap[]; | |
600 | extern ProtoHook tpiso_abort(); | |
601 | extern ProtoHook iso_rtchange(); | |
602 | extern ProtoHook tpiso_reset(); | |
a50e2bc0 | 603 | void iso_pcbnotify(); |
238ab140 KS |
604 | |
605 | IFDEBUG(D_TPINPUT) | |
a50e2bc0 KS |
606 | printf("tpclnp_ctlinput1: cmd 0x%x addr: %s\n", cmd, |
607 | clnp_iso_addrp(isoa)); | |
238ab140 KS |
608 | ENDDEBUG |
609 | ||
610 | if (cmd < 0 || cmd > PRC_NCMDS) | |
611 | return 0; | |
612 | switch (cmd) { | |
613 | ||
614 | case PRC_QUENCH2: | |
a50e2bc0 | 615 | iso_pcbnotify(&tp_isopcb, isoa, 0, (int (*)())tpiso_decbit); |
238ab140 KS |
616 | break; |
617 | ||
618 | case PRC_QUENCH: | |
a50e2bc0 | 619 | iso_pcbnotify(&tp_isopcb, isoa, 0, (int (*)())tpiso_quench); |
238ab140 KS |
620 | break; |
621 | ||
622 | case PRC_TIMXCEED_REASS: | |
623 | case PRC_ROUTEDEAD: | |
a50e2bc0 | 624 | iso_pcbnotify(&tp_isopcb, isoa, 0, tpiso_reset); |
238ab140 KS |
625 | break; |
626 | ||
627 | case PRC_HOSTUNREACH: | |
628 | case PRC_UNREACH_NET: | |
629 | case PRC_IFDOWN: | |
630 | case PRC_HOSTDEAD: | |
a50e2bc0 | 631 | iso_pcbnotify(&tp_isopcb, isoa, |
238ab140 KS |
632 | (int)inetctlerrmap[cmd], iso_rtchange); |
633 | break; | |
634 | ||
635 | default: | |
636 | /* | |
637 | case PRC_MSGSIZE: | |
638 | case PRC_UNREACH_HOST: | |
639 | case PRC_UNREACH_PROTOCOL: | |
640 | case PRC_UNREACH_PORT: | |
641 | case PRC_UNREACH_NEEDFRAG: | |
642 | case PRC_UNREACH_SRCFAIL: | |
643 | case PRC_REDIRECT_NET: | |
644 | case PRC_REDIRECT_HOST: | |
645 | case PRC_REDIRECT_TOSNET: | |
646 | case PRC_REDIRECT_TOSHOST: | |
647 | case PRC_TIMXCEED_INTRANS: | |
648 | case PRC_PARAMPROB: | |
649 | */ | |
a50e2bc0 | 650 | iso_pcbnotify(&tp_isopcb, isoa, (int)inetctlerrmap[cmd], tpiso_abort); |
238ab140 KS |
651 | break; |
652 | } | |
653 | return 0; | |
654 | } | |
655 | ||
656 | /* | |
657 | * These next 2 routines are | |
658 | * CALLED FROM: | |
659 | * xxx_notify() from tp_ctlinput() when | |
660 | * net level gets some ICMP-equiv. type event. | |
661 | * FUNCTION and ARGUMENTS: | |
662 | * Cause the connection to be aborted with some sort of error | |
663 | * reason indicating that the network layer caused the abort. | |
664 | * Fakes an ER TPDU so we can go through the driver. | |
665 | * abort always aborts the TP connection. | |
666 | * reset may or may not, depending on the TP class that's in use. | |
667 | */ | |
668 | ProtoHook | |
669 | tpiso_abort(isop) | |
670 | struct isopcb *isop; | |
671 | { | |
672 | struct tp_event e; | |
673 | ||
674 | IFDEBUG(D_CONN) | |
675 | printf("tpiso_abort 0x%x\n", isop); | |
676 | ENDDEBUG | |
677 | e.ev_number = ER_TPDU; | |
678 | e.ATTR(ER_TPDU).e_reason = ECONNABORTED; | |
679 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
680 | } | |
681 | ||
682 | ProtoHook | |
683 | tpiso_reset(isop) | |
684 | struct isopcb *isop; | |
685 | { | |
686 | struct tp_event e; | |
687 | ||
688 | e.ev_number = T_NETRESET; | |
689 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
690 | ||
691 | } | |
692 | ||
693 | #endif ISO |