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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 $ | |
78def00d | 31 | * @(#)tp_iso.c 7.4 (Berkeley) %G% |
238ab140 KS |
32 | * |
33 | * Here is where you find the iso-dependent code. We've tried | |
34 | * keep all net-level and (primarily) address-family-dependent stuff | |
35 | * out of the tp source, and everthing here is reached indirectly | |
36 | * through a switch table (struct nl_protosw *) tpcb->tp_nlproto | |
37 | * (see tp_pcb.c). | |
38 | * The routines here are: | |
39 | * iso_getsufx: gets transport suffix out of an isopcb structure. | |
40 | * iso_putsufx: put transport suffix into an isopcb structure. | |
41 | * iso_putnetaddr: put a whole net addr into an isopcb. | |
42 | * iso_getnetaddr: get a whole net addr from an isopcb. | |
43 | * iso_recycle_suffix: clear suffix for reuse in isopcb | |
44 | * tpclnp_ctlinput: handle ER CNLPdu : icmp-like stuff | |
45 | * tpclnp_mtu: figure out what size tpdu to use | |
46 | * tpclnp_input: take a pkt from clnp, strip off its clnp header, | |
47 | * give to tp | |
48 | * tpclnp_output_dg: package a pkt for clnp given 2 addresses & some data | |
49 | * tpclnp_output: package a pkt for clnp given an isopcb & some data | |
50 | */ | |
51 | ||
52 | #ifndef lint | |
a50e2bc0 | 53 | 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 |
54 | #endif lint |
55 | ||
56 | #ifdef ISO | |
57 | ||
a50e2bc0 KS |
58 | #include "param.h" |
59 | #include "socket.h" | |
60 | #include "socketvar.h" | |
61 | #include "domain.h" | |
62 | #include "malloc.h" | |
63 | #include "mbuf.h" | |
64 | #include "errno.h" | |
65 | #include "time.h" | |
66 | #include "protosw.h" | |
67 | ||
238ab140 KS |
68 | #include "../net/if.h" |
69 | #include "../net/route.h" | |
238ab140 | 70 | |
a50e2bc0 KS |
71 | #include "argo_debug.h" |
72 | #include "tp_param.h" | |
73 | #include "tp_stat.h" | |
74 | #include "tp_pcb.h" | |
75 | #include "tp_trace.h" | |
76 | #include "tp_stat.h" | |
77 | #include "tp_tpdu.h" | |
78 | #include "tp_clnp.h" | |
238ab140 KS |
79 | |
80 | /* | |
81 | * CALLED FROM: | |
82 | * pr_usrreq() on PRU_BIND, PRU_CONNECT, PRU_ACCEPT, and PRU_PEERADDR | |
a50e2bc0 | 83 | * FUNCTION, ARGUMENTS: |
238ab140 KS |
84 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. |
85 | */ | |
86 | ||
a50e2bc0 | 87 | iso_getsufx(isop, lenp, data_out, which) |
238ab140 | 88 | struct isopcb *isop; |
a50e2bc0 KS |
89 | u_short *lenp; |
90 | caddr_t data_out; | |
238ab140 KS |
91 | int which; |
92 | { | |
a50e2bc0 KS |
93 | register struct sockaddr_iso *addr = 0; |
94 | ||
238ab140 KS |
95 | switch (which) { |
96 | case TP_LOCAL: | |
a50e2bc0 KS |
97 | addr = isop->isop_laddr; |
98 | break; | |
238ab140 KS |
99 | |
100 | case TP_FOREIGN: | |
a50e2bc0 | 101 | addr = isop->isop_faddr; |
238ab140 | 102 | } |
a50e2bc0 | 103 | if (addr) |
44f52ea5 | 104 | bcopy(TSEL(addr), data_out, (*lenp = addr->siso_tlen)); |
238ab140 KS |
105 | } |
106 | ||
107 | /* CALLED FROM: | |
108 | * tp_newsocket(); i.e., when a connection is being established by an | |
109 | * incoming CR_TPDU. | |
110 | * | |
111 | * FUNCTION, ARGUMENTS: | |
112 | * Put a transport suffix (found in name) into an isopcb structure (isop). | |
113 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. | |
114 | */ | |
115 | void | |
a50e2bc0 | 116 | iso_putsufx(isop, sufxloc, sufxlen, which) |
238ab140 | 117 | struct isopcb *isop; |
a50e2bc0 KS |
118 | caddr_t sufxloc; |
119 | int sufxlen, which; | |
238ab140 | 120 | { |
a50e2bc0 KS |
121 | struct sockaddr_iso **dst, *backup; |
122 | register struct sockaddr_iso *addr; | |
123 | struct mbuf *m; | |
124 | int len; | |
125 | ||
238ab140 | 126 | switch (which) { |
a50e2bc0 KS |
127 | default: |
128 | return; | |
129 | ||
238ab140 | 130 | case TP_LOCAL: |
a50e2bc0 KS |
131 | dst = &isop->isop_laddr; |
132 | backup = &isop->isop_sladdr; | |
238ab140 | 133 | break; |
a50e2bc0 | 134 | |
238ab140 | 135 | case TP_FOREIGN: |
a50e2bc0 KS |
136 | dst = &isop->isop_faddr; |
137 | backup = &isop->isop_sfaddr; | |
138 | } | |
139 | if ((addr = *dst) == 0) { | |
140 | addr = *dst = backup; | |
141 | addr->siso_nlen = 0; | |
44f52ea5 KS |
142 | addr->siso_slen = 0; |
143 | addr->siso_plen = 0; | |
a50e2bc0 | 144 | printf("iso_putsufx on un-initialized isopcb\n"); |
238ab140 | 145 | } |
a50e2bc0 | 146 | len = sufxlen + addr->siso_nlen + |
44f52ea5 | 147 | (sizeof(*addr) - sizeof(addr->siso_data)); |
a50e2bc0 | 148 | if (addr == backup) { |
44f52ea5 | 149 | if (len > sizeof(*addr)) { |
a50e2bc0 KS |
150 | m = m_getclr(M_DONTWAIT, MT_SONAME); |
151 | if (m == 0) | |
152 | return; | |
153 | addr = *dst = mtod(m, struct sockaddr_iso *); | |
154 | *addr = *backup; | |
155 | m->m_len = len; | |
156 | } | |
44f52ea5 | 157 | } |
a50e2bc0 | 158 | bcopy(sufxloc, TSEL(addr), sufxlen); |
44f52ea5 | 159 | addr->siso_tlen = sufxlen; |
a50e2bc0 | 160 | addr->siso_len = len; |
238ab140 KS |
161 | } |
162 | ||
163 | /* | |
164 | * CALLED FROM: | |
165 | * tp.trans whenever we go into REFWAIT state. | |
166 | * FUNCTION and ARGUMENT: | |
167 | * Called when a ref is frozen, to allow the suffix to be reused. | |
168 | * (isop) is the net level pcb. This really shouldn't have to be | |
169 | * done in a NET level pcb but... for the internet world that just | |
170 | * the way it is done in BSD... | |
171 | * The alternative is to have the port unusable until the reference | |
172 | * timer goes off. | |
173 | */ | |
174 | void | |
175 | iso_recycle_tsuffix(isop) | |
176 | struct isopcb *isop; | |
177 | { | |
44f52ea5 | 178 | isop->isop_laddr->siso_tlen = isop->isop_faddr->siso_tlen = 0; |
238ab140 KS |
179 | } |
180 | ||
181 | /* | |
182 | * CALLED FROM: | |
183 | * tp_newsocket(); i.e., when a connection is being established by an | |
184 | * incoming CR_TPDU. | |
185 | * | |
186 | * FUNCTION and ARGUMENTS: | |
187 | * Copy a whole net addr from a struct sockaddr (name). | |
188 | * into an isopcb (isop). | |
189 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN | |
190 | */ | |
191 | void | |
192 | iso_putnetaddr(isop, name, which) | |
193 | register struct isopcb *isop; | |
194 | struct sockaddr_iso *name; | |
195 | int which; | |
196 | { | |
a50e2bc0 KS |
197 | struct sockaddr_iso **sisop, *backup; |
198 | register struct sockaddr_iso *siso; | |
199 | ||
238ab140 KS |
200 | switch (which) { |
201 | case TP_LOCAL: | |
a50e2bc0 KS |
202 | sisop = &isop->isop_laddr; |
203 | backup = &isop->isop_sladdr; | |
238ab140 KS |
204 | break; |
205 | case TP_FOREIGN: | |
a50e2bc0 KS |
206 | sisop = &isop->isop_faddr; |
207 | backup = &isop->isop_sfaddr; | |
238ab140 | 208 | } |
a50e2bc0 KS |
209 | siso = ((*sisop == 0) ? (*sisop = backup) : *sisop); |
210 | IFDEBUG(D_TPISO) | |
211 | printf("ISO_PUTNETADDR\n"); | |
212 | dump_isoaddr(isop->isop_faddr); | |
213 | ENDDEBUG | |
214 | siso->siso_addr = name->siso_addr; | |
238ab140 KS |
215 | } |
216 | ||
217 | /* | |
218 | * CALLED FROM: | |
219 | * pr_usrreq() PRU_SOCKADDR, PRU_ACCEPT, PRU_PEERADDR | |
220 | * FUNCTION and ARGUMENTS: | |
221 | * Copy a whole net addr from an isopcb (isop) into | |
222 | * a struct sockaddr (name). | |
223 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN. | |
224 | */ | |
225 | ||
226 | void | |
227 | iso_getnetaddr( isop, name, which) | |
228 | struct isopcb *isop; | |
a50e2bc0 | 229 | struct mbuf *name; |
238ab140 KS |
230 | int which; |
231 | { | |
a50e2bc0 KS |
232 | struct sockaddr_iso *siso = |
233 | (which == TP_LOCAL ? isop->isop_laddr : isop->isop_faddr); | |
234 | if (siso) | |
235 | bcopy((caddr_t)siso, mtod(name, caddr_t), | |
236 | (unsigned)(name->m_len = siso->siso_len)); | |
237 | else | |
238 | name->m_len = 0; | |
238ab140 KS |
239 | } |
240 | ||
241 | /* | |
242 | * CALLED FROM: | |
243 | * tp_input() on incoming CR, CC, and pr_usrreq() for PRU_CONNECT | |
244 | * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE: | |
245 | * Determine the proper maximum transmission unit, i.e., MTU, to use, given | |
246 | * a) the header size for the network protocol and the max transmission | |
247 | * unit on the subnet interface, determined from the information in (isop), | |
248 | * b) the max size negotiated so far (negot) | |
249 | * c) the window size used by the tp connection (found in so), | |
250 | * | |
251 | * The result is put in the integer *size in its integer form and in | |
252 | * *negot in its logarithmic form. | |
253 | * | |
254 | * The rules are: | |
255 | * a) can only negotiate down from the value found in *negot. | |
256 | * b) the MTU must be < the windowsize, | |
257 | * c) If src and dest are on the same net, | |
258 | * we will negotiate the closest size larger than MTU but really USE | |
259 | * the actual device mtu - ll hdr sizes. | |
260 | * otherwise we negotiate the closest size smaller than MTU - ll hdr sizes. | |
261 | */ | |
262 | ||
263 | void | |
264 | tpclnp_mtu(so, isop, size, negot ) | |
265 | struct socket *so; | |
266 | struct isopcb *isop; | |
267 | int *size; | |
268 | u_char *negot; | |
269 | { | |
78def00d KS |
270 | struct ifnet *ifp = 0; |
271 | struct iso_ifaddr *ia = 0; | |
238ab140 KS |
272 | register int i; |
273 | int windowsize = so->so_rcv.sb_hiwat; | |
274 | int clnp_size; | |
275 | int sizeismtu = 0; | |
78def00d | 276 | register struct rtentry *rt = isop->isop_route.ro_rt; |
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 | ||
78def00d KS |
291 | if (rt == 0 || (rt->rt_flags & RTF_UP == 0) || |
292 | (ia = (struct iso_ifaddr *)rt->rt_ifa) == 0 || | |
293 | (ifp = ia->ia_ifp) == 0) { | |
294 | IFDEBUG(D_CONN) | |
295 | printf("tpclnp_mtu routing abort rt=0x%x ia=0x%x ifp=0x%x\n", | |
296 | rt, ia, ifp) | |
297 | ENDDEBUG | |
238ab140 | 298 | return; |
78def00d | 299 | } |
238ab140 KS |
300 | |
301 | /* TODO - make this indirect off the socket structure to the | |
302 | * network layer to get headersize | |
303 | */ | |
a50e2bc0 KS |
304 | if (isop->isop_laddr) |
305 | clnp_size = clnp_hdrsize(isop->isop_laddr->siso_addr.isoa_len); | |
306 | else | |
307 | clnp_size = 20; | |
238ab140 KS |
308 | |
309 | if(*size > ifp->if_mtu - clnp_size) { | |
310 | *size = ifp->if_mtu - clnp_size; | |
311 | sizeismtu = 1; | |
312 | } | |
238ab140 KS |
313 | /* have to transform size to the log2 of size */ |
314 | for(i=TP_MIN_TPDUSIZE; (i<TP_MAX_TPDUSIZE && ((1<<i) <= *size)) ; i++) | |
315 | ; | |
316 | i--; | |
317 | ||
a50e2bc0 KS |
318 | IFTRACE(D_CONN) |
319 | tptrace(TPPTmisc, "GET MTU MID: tpcb size negot i \n", | |
320 | *size, *negot, i, 0); | |
321 | ENDTRACE | |
322 | ||
238ab140 KS |
323 | /* are we on the same LAN? if so, negotiate one tpdu size larger, |
324 | * and actually send the real mtu size | |
325 | */ | |
a50e2bc0 | 326 | if (iso_localifa(isop->isop_faddr)) { |
238ab140 KS |
327 | i++; |
328 | } else { | |
329 | *size = 1<<i; | |
330 | } | |
331 | *negot = i; | |
332 | ||
333 | IFDEBUG(D_CONN) | |
334 | printf("GET MTU RETURNS: ifp %s size 0x%x negot 0x%x\n", | |
335 | ifp->if_name, *size, *negot); | |
336 | ENDDEBUG | |
337 | IFTRACE(D_CONN) | |
338 | tptrace(TPPTmisc, "EXIT GET MTU: tpcb size negot \n", | |
339 | *size, *negot, 0, 0); | |
340 | ENDTRACE | |
341 | } | |
342 | ||
343 | ||
344 | /* | |
345 | * CALLED FROM: | |
346 | * tp_emit() | |
347 | * FUNCTION and ARGUMENTS: | |
348 | * Take a packet(m0) from tp and package it so that clnp will accept it. | |
349 | * This means prepending space for the clnp header and filling in a few | |
350 | * of the fields. | |
351 | * inp is the isopcb structure; datalen is the length of the data in the | |
352 | * mbuf string m0. | |
353 | * RETURN VALUE: | |
354 | * whatever (E*) is returned form the net layer output routine. | |
355 | */ | |
356 | ||
357 | int | |
358 | tpclnp_output(isop, m0, datalen, nochksum) | |
359 | struct isopcb *isop; | |
360 | struct mbuf *m0; | |
361 | int datalen; | |
362 | int nochksum; | |
363 | { | |
a50e2bc0 | 364 | register struct mbuf *m = m0; |
238ab140 KS |
365 | IncStat(ts_tpdu_sent); |
366 | ||
367 | IFDEBUG(D_TPISO) | |
368 | struct tpdu *hdr = mtod(m0, struct tpdu *); | |
369 | ||
370 | printf( | |
371 | "abt to call clnp_output: datalen 0x%x, hdr.li 0x%x, hdr.dutype 0x%x nocsum x%x dst addr:\n", | |
372 | datalen, | |
373 | (int)hdr->tpdu_li, (int)hdr->tpdu_type, nochksum); | |
a50e2bc0 | 374 | dump_isoaddr(isop->isop_faddr); |
238ab140 | 375 | printf("\nsrc addr:\n"); |
a50e2bc0 | 376 | dump_isoaddr(isop->isop_laddr); |
238ab140 KS |
377 | dump_mbuf(m0, "at tpclnp_output"); |
378 | ENDDEBUG | |
379 | ||
380 | return | |
44f52ea5 | 381 | clnp_output(m0, isop, datalen, /* flags */nochksum ? CLNP_NO_CKSUM : 0); |
238ab140 KS |
382 | } |
383 | ||
384 | /* | |
385 | * CALLED FROM: | |
386 | * tp_error_emit() | |
387 | * FUNCTION and ARGUMENTS: | |
388 | * This is a copy of tpclnp_output that takes the addresses | |
389 | * instead of a pcb. It's used by the tp_error_emit, when we | |
390 | * don't have an iso_pcb with which to call the normal output rtn. | |
391 | * RETURN VALUE: | |
392 | * ENOBUFS or | |
393 | * whatever (E*) is returned form the net layer output routine. | |
394 | */ | |
395 | ||
396 | int | |
397 | tpclnp_output_dg(laddr, faddr, m0, datalen, ro, nochksum) | |
398 | struct iso_addr *laddr, *faddr; | |
399 | struct mbuf *m0; | |
400 | int datalen; | |
401 | struct route *ro; | |
402 | int nochksum; | |
403 | { | |
404 | struct isopcb tmppcb; | |
238ab140 KS |
405 | int err; |
406 | int flags; | |
a50e2bc0 | 407 | register struct mbuf *m = m0; |
238ab140 KS |
408 | |
409 | IFDEBUG(D_TPISO) | |
410 | printf("tpclnp_output_dg datalen 0x%x m0 0x%x\n", datalen, m0); | |
411 | ENDDEBUG | |
412 | ||
413 | /* | |
414 | * Fill in minimal portion of isopcb so that clnp can send the | |
415 | * packet. | |
416 | */ | |
417 | bzero((caddr_t)&tmppcb, sizeof(tmppcb)); | |
a50e2bc0 KS |
418 | tmppcb.isop_laddr = &tmppcb.isop_sladdr; |
419 | tmppcb.isop_laddr->siso_addr = *laddr; | |
420 | tmppcb.isop_faddr = &tmppcb.isop_sfaddr; | |
421 | tmppcb.isop_faddr->siso_addr = *faddr; | |
238ab140 KS |
422 | |
423 | IFDEBUG(D_TPISO) | |
424 | printf("tpclnp_output_dg faddr: \n"); | |
a50e2bc0 | 425 | dump_isoaddr(&tmppcb.isop_sfaddr); |
238ab140 | 426 | printf("\ntpclnp_output_dg laddr: \n"); |
a50e2bc0 | 427 | dump_isoaddr(&tmppcb.isop_sladdr); |
238ab140 KS |
428 | printf("\n"); |
429 | ENDDEBUG | |
430 | ||
431 | /* | |
432 | * Do not use packet cache since this is a one shot error packet | |
433 | */ | |
434 | flags = (CLNP_NOCACHE|(nochksum?CLNP_NO_CKSUM:0)); | |
435 | ||
436 | IncStat(ts_tpdu_sent); | |
437 | ||
44f52ea5 | 438 | err = clnp_output(m0, &tmppcb, datalen, flags); |
238ab140 KS |
439 | |
440 | /* | |
441 | * Free route allocated by clnp (if the route was indeed allocated) | |
442 | */ | |
443 | if (tmppcb.isop_route.ro_rt) | |
444 | RTFREE(tmppcb.isop_route.ro_rt); | |
445 | ||
446 | return(err); | |
447 | } | |
a50e2bc0 | 448 | extern struct sockaddr_iso blank_siso; |
238ab140 KS |
449 | /* |
450 | * CALLED FROM: | |
451 | * clnp's input routine, indirectly through the protosw. | |
452 | * FUNCTION and ARGUMENTS: | |
453 | * Take a packet (m) from clnp, strip off the clnp header and give it to tp | |
454 | * No return value. | |
455 | */ | |
456 | ProtoHook | |
457 | tpclnp_input(m, faddr, laddr, clnp_len) | |
458 | struct mbuf *m; | |
459 | struct iso_addr *faddr, *laddr; | |
460 | int clnp_len; | |
461 | { | |
462 | struct sockaddr_iso src, dst; | |
463 | int s = splnet(); | |
a50e2bc0 | 464 | struct mbuf *tp_inputprep(); |
238ab140 KS |
465 | |
466 | IncStat(ts_pkt_rcvd); | |
467 | ||
468 | IFDEBUG(D_TPINPUT) | |
469 | printf("tpclnp_input: m 0x%x clnp_len 0x%x\n", m, clnp_len); | |
470 | dump_mbuf(m, "at tpclnp_input"); | |
471 | ENDDEBUG | |
472 | /* | |
473 | * CLNP gives us an mbuf chain WITH the clnp header pulled up, | |
474 | * and the length of the clnp header. | |
475 | * First, strip off the Clnp header. leave the mbuf there for the | |
476 | * pullup that follows. | |
477 | */ | |
478 | ||
479 | m->m_len -= clnp_len; | |
a50e2bc0 | 480 | m->m_data += clnp_len; |
238ab140 | 481 | |
a50e2bc0 | 482 | m = tp_inputprep(m); |
238ab140 KS |
483 | |
484 | IFDEBUG(D_TPINPUT) | |
485 | dump_mbuf(m, "after tpclnp_input both pullups"); | |
486 | ENDDEBUG | |
487 | ||
a50e2bc0 KS |
488 | src = blank_siso; dst = blank_siso; |
489 | bcopy((caddr_t)faddr, (caddr_t)&src.siso_addr, 1 + faddr->isoa_len); | |
490 | bcopy((caddr_t)laddr, (caddr_t)&dst.siso_addr, 1 + laddr->isoa_len); | |
238ab140 KS |
491 | |
492 | IFDEBUG(D_TPISO) | |
493 | printf("calling tp_input: &src 0x%x &dst 0x%x, src addr:\n", | |
494 | &src, &dst); | |
495 | printf(" dst addr:\n"); | |
496 | dump_isoaddr(&src); | |
497 | dump_isoaddr(&dst); | |
498 | ENDDEBUG | |
499 | ||
a50e2bc0 KS |
500 | (void) tp_input(m, (struct sockaddr *)&src, (struct sockaddr *)&dst, |
501 | 0, tpclnp_output_dg); | |
238ab140 KS |
502 | |
503 | IFDEBUG(D_QUENCH) | |
504 | { | |
505 | if(time.tv_usec & 0x4 && time.tv_usec & 0x40) { | |
506 | printf("tpclnp_input: FAKING %s\n", | |
507 | tp_stat.ts_pkt_rcvd & 0x1?"QUENCH":"QUENCH2"); | |
508 | if(tp_stat.ts_pkt_rcvd & 0x1) { | |
509 | tpclnp_ctlinput(PRC_QUENCH, &src); | |
510 | } else { | |
511 | tpclnp_ctlinput(PRC_QUENCH2, &src); | |
512 | } | |
513 | } | |
514 | } | |
515 | ENDDEBUG | |
516 | ||
517 | splx(s); | |
518 | return 0; | |
238ab140 KS |
519 | } |
520 | ||
521 | ProtoHook | |
522 | iso_rtchange() | |
523 | { | |
524 | return 0; | |
525 | } | |
526 | ||
527 | /* | |
528 | * CALLED FROM: | |
529 | * tpclnp_ctlinput() | |
530 | * FUNCTION and ARGUMENTS: | |
531 | * find the tpcb pointer and pass it to tp_quench | |
532 | */ | |
533 | void | |
534 | tpiso_decbit(isop) | |
535 | struct isopcb *isop; | |
536 | { | |
a50e2bc0 | 537 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH2); |
238ab140 KS |
538 | } |
539 | /* | |
540 | * CALLED FROM: | |
541 | * tpclnp_ctlinput() | |
542 | * FUNCTION and ARGUMENTS: | |
543 | * find the tpcb pointer and pass it to tp_quench | |
544 | */ | |
545 | void | |
546 | tpiso_quench(isop) | |
547 | struct isopcb *isop; | |
548 | { | |
a50e2bc0 | 549 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH); |
238ab140 KS |
550 | } |
551 | ||
552 | /* | |
553 | * CALLED FROM: | |
554 | * The network layer through the protosw table. | |
555 | * FUNCTION and ARGUMENTS: | |
556 | * When clnp an ICMP-like msg this gets called. | |
557 | * It either returns an error status to the user or | |
558 | * it causes all connections on this address to be aborted | |
559 | * by calling the appropriate xx_notify() routine. | |
560 | * (cmd) is the type of ICMP error. | |
561 | * (siso) is the address of the guy who sent the ER CLNPDU | |
562 | */ | |
563 | ProtoHook | |
564 | tpclnp_ctlinput(cmd, siso) | |
565 | int cmd; | |
566 | struct sockaddr_iso *siso; | |
a50e2bc0 KS |
567 | { |
568 | return tpclnp_ctlinput1(cmd, &siso->siso_addr); | |
569 | } | |
570 | ||
571 | /* | |
572 | * Entry to ctlinput with argument of an iso_addr rather than a sockaddr | |
573 | */ | |
574 | ProtoHook | |
575 | tpclnp_ctlinput1(cmd, isoa) | |
576 | int cmd; | |
577 | struct iso_addr *isoa; | |
238ab140 KS |
578 | { |
579 | extern u_char inetctlerrmap[]; | |
580 | extern ProtoHook tpiso_abort(); | |
581 | extern ProtoHook iso_rtchange(); | |
582 | extern ProtoHook tpiso_reset(); | |
a50e2bc0 | 583 | void iso_pcbnotify(); |
238ab140 KS |
584 | |
585 | IFDEBUG(D_TPINPUT) | |
a50e2bc0 KS |
586 | printf("tpclnp_ctlinput1: cmd 0x%x addr: %s\n", cmd, |
587 | clnp_iso_addrp(isoa)); | |
238ab140 KS |
588 | ENDDEBUG |
589 | ||
590 | if (cmd < 0 || cmd > PRC_NCMDS) | |
591 | return 0; | |
592 | switch (cmd) { | |
593 | ||
594 | case PRC_QUENCH2: | |
a50e2bc0 | 595 | iso_pcbnotify(&tp_isopcb, isoa, 0, (int (*)())tpiso_decbit); |
238ab140 KS |
596 | break; |
597 | ||
598 | case PRC_QUENCH: | |
a50e2bc0 | 599 | iso_pcbnotify(&tp_isopcb, isoa, 0, (int (*)())tpiso_quench); |
238ab140 KS |
600 | break; |
601 | ||
602 | case PRC_TIMXCEED_REASS: | |
603 | case PRC_ROUTEDEAD: | |
a50e2bc0 | 604 | iso_pcbnotify(&tp_isopcb, isoa, 0, tpiso_reset); |
238ab140 KS |
605 | break; |
606 | ||
607 | case PRC_HOSTUNREACH: | |
608 | case PRC_UNREACH_NET: | |
609 | case PRC_IFDOWN: | |
610 | case PRC_HOSTDEAD: | |
a50e2bc0 | 611 | iso_pcbnotify(&tp_isopcb, isoa, |
238ab140 KS |
612 | (int)inetctlerrmap[cmd], iso_rtchange); |
613 | break; | |
614 | ||
615 | default: | |
616 | /* | |
617 | case PRC_MSGSIZE: | |
618 | case PRC_UNREACH_HOST: | |
619 | case PRC_UNREACH_PROTOCOL: | |
620 | case PRC_UNREACH_PORT: | |
621 | case PRC_UNREACH_NEEDFRAG: | |
622 | case PRC_UNREACH_SRCFAIL: | |
623 | case PRC_REDIRECT_NET: | |
624 | case PRC_REDIRECT_HOST: | |
625 | case PRC_REDIRECT_TOSNET: | |
626 | case PRC_REDIRECT_TOSHOST: | |
627 | case PRC_TIMXCEED_INTRANS: | |
628 | case PRC_PARAMPROB: | |
629 | */ | |
a50e2bc0 | 630 | iso_pcbnotify(&tp_isopcb, isoa, (int)inetctlerrmap[cmd], tpiso_abort); |
238ab140 KS |
631 | break; |
632 | } | |
633 | return 0; | |
634 | } | |
635 | ||
636 | /* | |
637 | * These next 2 routines are | |
638 | * CALLED FROM: | |
639 | * xxx_notify() from tp_ctlinput() when | |
640 | * net level gets some ICMP-equiv. type event. | |
641 | * FUNCTION and ARGUMENTS: | |
642 | * Cause the connection to be aborted with some sort of error | |
643 | * reason indicating that the network layer caused the abort. | |
644 | * Fakes an ER TPDU so we can go through the driver. | |
645 | * abort always aborts the TP connection. | |
646 | * reset may or may not, depending on the TP class that's in use. | |
647 | */ | |
648 | ProtoHook | |
649 | tpiso_abort(isop) | |
650 | struct isopcb *isop; | |
651 | { | |
652 | struct tp_event e; | |
653 | ||
654 | IFDEBUG(D_CONN) | |
655 | printf("tpiso_abort 0x%x\n", isop); | |
656 | ENDDEBUG | |
657 | e.ev_number = ER_TPDU; | |
658 | e.ATTR(ER_TPDU).e_reason = ECONNABORTED; | |
659 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
660 | } | |
661 | ||
662 | ProtoHook | |
663 | tpiso_reset(isop) | |
664 | struct isopcb *isop; | |
665 | { | |
666 | struct tp_event e; | |
667 | ||
668 | e.ev_number = T_NETRESET; | |
669 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
670 | ||
671 | } | |
672 | ||
673 | #endif ISO |