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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 $ | |
e02c2019 | 31 | * @(#)tp_iso.c 7.6 (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" | |
c0dbf2a0 | 79 | #include "cltp_var.h" |
238ab140 KS |
80 | |
81 | /* | |
82 | * CALLED FROM: | |
83 | * pr_usrreq() on PRU_BIND, PRU_CONNECT, PRU_ACCEPT, and PRU_PEERADDR | |
a50e2bc0 | 84 | * FUNCTION, ARGUMENTS: |
238ab140 KS |
85 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. |
86 | */ | |
87 | ||
a50e2bc0 | 88 | iso_getsufx(isop, lenp, data_out, which) |
238ab140 | 89 | struct isopcb *isop; |
a50e2bc0 KS |
90 | u_short *lenp; |
91 | caddr_t data_out; | |
238ab140 KS |
92 | int which; |
93 | { | |
a50e2bc0 KS |
94 | register struct sockaddr_iso *addr = 0; |
95 | ||
238ab140 KS |
96 | switch (which) { |
97 | case TP_LOCAL: | |
a50e2bc0 KS |
98 | addr = isop->isop_laddr; |
99 | break; | |
238ab140 KS |
100 | |
101 | case TP_FOREIGN: | |
a50e2bc0 | 102 | addr = isop->isop_faddr; |
238ab140 | 103 | } |
a50e2bc0 | 104 | if (addr) |
44f52ea5 | 105 | bcopy(TSEL(addr), data_out, (*lenp = addr->siso_tlen)); |
238ab140 KS |
106 | } |
107 | ||
108 | /* CALLED FROM: | |
109 | * tp_newsocket(); i.e., when a connection is being established by an | |
110 | * incoming CR_TPDU. | |
111 | * | |
112 | * FUNCTION, ARGUMENTS: | |
113 | * Put a transport suffix (found in name) into an isopcb structure (isop). | |
114 | * The argument (which) takes the value TP_LOCAL or TP_FOREIGN. | |
115 | */ | |
116 | void | |
a50e2bc0 | 117 | iso_putsufx(isop, sufxloc, sufxlen, which) |
238ab140 | 118 | struct isopcb *isop; |
a50e2bc0 KS |
119 | caddr_t sufxloc; |
120 | int sufxlen, which; | |
238ab140 | 121 | { |
a50e2bc0 KS |
122 | struct sockaddr_iso **dst, *backup; |
123 | register struct sockaddr_iso *addr; | |
124 | struct mbuf *m; | |
125 | int len; | |
126 | ||
238ab140 | 127 | switch (which) { |
a50e2bc0 KS |
128 | default: |
129 | return; | |
130 | ||
238ab140 | 131 | case TP_LOCAL: |
a50e2bc0 KS |
132 | dst = &isop->isop_laddr; |
133 | backup = &isop->isop_sladdr; | |
238ab140 | 134 | break; |
a50e2bc0 | 135 | |
238ab140 | 136 | case TP_FOREIGN: |
a50e2bc0 KS |
137 | dst = &isop->isop_faddr; |
138 | backup = &isop->isop_sfaddr; | |
139 | } | |
140 | if ((addr = *dst) == 0) { | |
141 | addr = *dst = backup; | |
142 | addr->siso_nlen = 0; | |
44f52ea5 KS |
143 | addr->siso_slen = 0; |
144 | addr->siso_plen = 0; | |
a50e2bc0 | 145 | printf("iso_putsufx on un-initialized isopcb\n"); |
238ab140 | 146 | } |
a50e2bc0 | 147 | len = sufxlen + addr->siso_nlen + |
44f52ea5 | 148 | (sizeof(*addr) - sizeof(addr->siso_data)); |
a50e2bc0 | 149 | if (addr == backup) { |
44f52ea5 | 150 | if (len > sizeof(*addr)) { |
a50e2bc0 KS |
151 | m = m_getclr(M_DONTWAIT, MT_SONAME); |
152 | if (m == 0) | |
153 | return; | |
154 | addr = *dst = mtod(m, struct sockaddr_iso *); | |
155 | *addr = *backup; | |
156 | m->m_len = len; | |
157 | } | |
44f52ea5 | 158 | } |
a50e2bc0 | 159 | bcopy(sufxloc, TSEL(addr), sufxlen); |
44f52ea5 | 160 | addr->siso_tlen = sufxlen; |
a50e2bc0 | 161 | addr->siso_len = len; |
238ab140 KS |
162 | } |
163 | ||
164 | /* | |
165 | * CALLED FROM: | |
166 | * tp.trans whenever we go into REFWAIT state. | |
167 | * FUNCTION and ARGUMENT: | |
168 | * Called when a ref is frozen, to allow the suffix to be reused. | |
169 | * (isop) is the net level pcb. This really shouldn't have to be | |
170 | * done in a NET level pcb but... for the internet world that just | |
171 | * the way it is done in BSD... | |
172 | * The alternative is to have the port unusable until the reference | |
173 | * timer goes off. | |
174 | */ | |
175 | void | |
176 | iso_recycle_tsuffix(isop) | |
177 | struct isopcb *isop; | |
178 | { | |
44f52ea5 | 179 | isop->isop_laddr->siso_tlen = isop->isop_faddr->siso_tlen = 0; |
238ab140 KS |
180 | } |
181 | ||
182 | /* | |
183 | * CALLED FROM: | |
184 | * tp_newsocket(); i.e., when a connection is being established by an | |
185 | * incoming CR_TPDU. | |
186 | * | |
187 | * FUNCTION and ARGUMENTS: | |
188 | * Copy a whole net addr from a struct sockaddr (name). | |
189 | * into an isopcb (isop). | |
190 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN | |
191 | */ | |
192 | void | |
193 | iso_putnetaddr(isop, name, which) | |
194 | register struct isopcb *isop; | |
195 | struct sockaddr_iso *name; | |
196 | int which; | |
197 | { | |
a50e2bc0 KS |
198 | struct sockaddr_iso **sisop, *backup; |
199 | register struct sockaddr_iso *siso; | |
200 | ||
238ab140 KS |
201 | switch (which) { |
202 | case TP_LOCAL: | |
a50e2bc0 KS |
203 | sisop = &isop->isop_laddr; |
204 | backup = &isop->isop_sladdr; | |
238ab140 KS |
205 | break; |
206 | case TP_FOREIGN: | |
a50e2bc0 KS |
207 | sisop = &isop->isop_faddr; |
208 | backup = &isop->isop_sfaddr; | |
238ab140 | 209 | } |
a50e2bc0 KS |
210 | siso = ((*sisop == 0) ? (*sisop = backup) : *sisop); |
211 | IFDEBUG(D_TPISO) | |
212 | printf("ISO_PUTNETADDR\n"); | |
213 | dump_isoaddr(isop->isop_faddr); | |
214 | ENDDEBUG | |
215 | siso->siso_addr = name->siso_addr; | |
238ab140 KS |
216 | } |
217 | ||
218 | /* | |
219 | * CALLED FROM: | |
220 | * pr_usrreq() PRU_SOCKADDR, PRU_ACCEPT, PRU_PEERADDR | |
221 | * FUNCTION and ARGUMENTS: | |
222 | * Copy a whole net addr from an isopcb (isop) into | |
223 | * a struct sockaddr (name). | |
224 | * The argument (which) takes values TP_LOCAL or TP_FOREIGN. | |
225 | */ | |
226 | ||
227 | void | |
228 | iso_getnetaddr( isop, name, which) | |
229 | struct isopcb *isop; | |
a50e2bc0 | 230 | struct mbuf *name; |
238ab140 KS |
231 | int which; |
232 | { | |
a50e2bc0 KS |
233 | struct sockaddr_iso *siso = |
234 | (which == TP_LOCAL ? isop->isop_laddr : isop->isop_faddr); | |
235 | if (siso) | |
236 | bcopy((caddr_t)siso, mtod(name, caddr_t), | |
237 | (unsigned)(name->m_len = siso->siso_len)); | |
238 | else | |
239 | name->m_len = 0; | |
238ab140 KS |
240 | } |
241 | ||
242 | /* | |
243 | * CALLED FROM: | |
244 | * tp_input() on incoming CR, CC, and pr_usrreq() for PRU_CONNECT | |
245 | * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE: | |
246 | * Determine the proper maximum transmission unit, i.e., MTU, to use, given | |
247 | * a) the header size for the network protocol and the max transmission | |
248 | * unit on the subnet interface, determined from the information in (isop), | |
249 | * b) the max size negotiated so far (negot) | |
250 | * c) the window size used by the tp connection (found in so), | |
251 | * | |
252 | * The result is put in the integer *size in its integer form and in | |
253 | * *negot in its logarithmic form. | |
254 | * | |
255 | * The rules are: | |
256 | * a) can only negotiate down from the value found in *negot. | |
257 | * b) the MTU must be < the windowsize, | |
258 | * c) If src and dest are on the same net, | |
259 | * we will negotiate the closest size larger than MTU but really USE | |
260 | * the actual device mtu - ll hdr sizes. | |
261 | * otherwise we negotiate the closest size smaller than MTU - ll hdr sizes. | |
262 | */ | |
263 | ||
264 | void | |
265 | tpclnp_mtu(so, isop, size, negot ) | |
266 | struct socket *so; | |
267 | struct isopcb *isop; | |
268 | int *size; | |
269 | u_char *negot; | |
270 | { | |
78def00d KS |
271 | struct ifnet *ifp = 0; |
272 | struct iso_ifaddr *ia = 0; | |
238ab140 KS |
273 | register int i; |
274 | int windowsize = so->so_rcv.sb_hiwat; | |
275 | int clnp_size; | |
276 | int sizeismtu = 0; | |
78def00d | 277 | register struct rtentry *rt = isop->isop_route.ro_rt; |
238ab140 KS |
278 | |
279 | IFDEBUG(D_CONN) | |
280 | printf("tpclnp_mtu(0x%x,0x%x,0x%x,0x%x)\n", so, isop, size, negot); | |
281 | ENDDEBUG | |
282 | IFTRACE(D_CONN) | |
283 | tptrace(TPPTmisc, "ENTER GET MTU: size negot \n",*size, *negot, 0, 0); | |
284 | ENDTRACE | |
285 | ||
286 | *size = 1 << *negot; | |
287 | ||
288 | if( *size > windowsize ) { | |
289 | *size = windowsize; | |
290 | } | |
291 | ||
78def00d KS |
292 | if (rt == 0 || (rt->rt_flags & RTF_UP == 0) || |
293 | (ia = (struct iso_ifaddr *)rt->rt_ifa) == 0 || | |
294 | (ifp = ia->ia_ifp) == 0) { | |
295 | IFDEBUG(D_CONN) | |
296 | printf("tpclnp_mtu routing abort rt=0x%x ia=0x%x ifp=0x%x\n", | |
297 | rt, ia, ifp) | |
298 | ENDDEBUG | |
238ab140 | 299 | return; |
78def00d | 300 | } |
238ab140 KS |
301 | |
302 | /* TODO - make this indirect off the socket structure to the | |
303 | * network layer to get headersize | |
304 | */ | |
a50e2bc0 KS |
305 | if (isop->isop_laddr) |
306 | clnp_size = clnp_hdrsize(isop->isop_laddr->siso_addr.isoa_len); | |
307 | else | |
308 | clnp_size = 20; | |
238ab140 KS |
309 | |
310 | if(*size > ifp->if_mtu - clnp_size) { | |
311 | *size = ifp->if_mtu - clnp_size; | |
312 | sizeismtu = 1; | |
313 | } | |
238ab140 KS |
314 | /* have to transform size to the log2 of size */ |
315 | for(i=TP_MIN_TPDUSIZE; (i<TP_MAX_TPDUSIZE && ((1<<i) <= *size)) ; i++) | |
316 | ; | |
317 | i--; | |
318 | ||
a50e2bc0 KS |
319 | IFTRACE(D_CONN) |
320 | tptrace(TPPTmisc, "GET MTU MID: tpcb size negot i \n", | |
321 | *size, *negot, i, 0); | |
322 | ENDTRACE | |
323 | ||
c0dbf2a0 | 324 | *size = 1<<i; |
238ab140 KS |
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 | |
373 | ||
374 | return | |
44f52ea5 | 375 | clnp_output(m0, isop, datalen, /* flags */nochksum ? CLNP_NO_CKSUM : 0); |
238ab140 KS |
376 | } |
377 | ||
378 | /* | |
379 | * CALLED FROM: | |
380 | * tp_error_emit() | |
381 | * FUNCTION and ARGUMENTS: | |
382 | * This is a copy of tpclnp_output that takes the addresses | |
383 | * instead of a pcb. It's used by the tp_error_emit, when we | |
384 | * don't have an iso_pcb with which to call the normal output rtn. | |
385 | * RETURN VALUE: | |
386 | * ENOBUFS or | |
387 | * whatever (E*) is returned form the net layer output routine. | |
388 | */ | |
389 | ||
390 | int | |
391 | tpclnp_output_dg(laddr, faddr, m0, datalen, ro, nochksum) | |
392 | struct iso_addr *laddr, *faddr; | |
393 | struct mbuf *m0; | |
394 | int datalen; | |
395 | struct route *ro; | |
396 | int nochksum; | |
397 | { | |
398 | struct isopcb tmppcb; | |
238ab140 KS |
399 | int err; |
400 | int flags; | |
a50e2bc0 | 401 | register struct mbuf *m = m0; |
238ab140 KS |
402 | |
403 | IFDEBUG(D_TPISO) | |
404 | printf("tpclnp_output_dg datalen 0x%x m0 0x%x\n", datalen, m0); | |
405 | ENDDEBUG | |
406 | ||
407 | /* | |
408 | * Fill in minimal portion of isopcb so that clnp can send the | |
409 | * packet. | |
410 | */ | |
411 | bzero((caddr_t)&tmppcb, sizeof(tmppcb)); | |
a50e2bc0 KS |
412 | tmppcb.isop_laddr = &tmppcb.isop_sladdr; |
413 | tmppcb.isop_laddr->siso_addr = *laddr; | |
414 | tmppcb.isop_faddr = &tmppcb.isop_sfaddr; | |
415 | tmppcb.isop_faddr->siso_addr = *faddr; | |
238ab140 KS |
416 | |
417 | IFDEBUG(D_TPISO) | |
418 | printf("tpclnp_output_dg faddr: \n"); | |
a50e2bc0 | 419 | dump_isoaddr(&tmppcb.isop_sfaddr); |
238ab140 | 420 | printf("\ntpclnp_output_dg laddr: \n"); |
a50e2bc0 | 421 | dump_isoaddr(&tmppcb.isop_sladdr); |
238ab140 KS |
422 | printf("\n"); |
423 | ENDDEBUG | |
424 | ||
425 | /* | |
426 | * Do not use packet cache since this is a one shot error packet | |
427 | */ | |
428 | flags = (CLNP_NOCACHE|(nochksum?CLNP_NO_CKSUM:0)); | |
429 | ||
430 | IncStat(ts_tpdu_sent); | |
431 | ||
44f52ea5 | 432 | err = clnp_output(m0, &tmppcb, datalen, flags); |
238ab140 KS |
433 | |
434 | /* | |
435 | * Free route allocated by clnp (if the route was indeed allocated) | |
436 | */ | |
437 | if (tmppcb.isop_route.ro_rt) | |
438 | RTFREE(tmppcb.isop_route.ro_rt); | |
439 | ||
440 | return(err); | |
441 | } | |
238ab140 KS |
442 | /* |
443 | * CALLED FROM: | |
444 | * clnp's input routine, indirectly through the protosw. | |
445 | * FUNCTION and ARGUMENTS: | |
446 | * Take a packet (m) from clnp, strip off the clnp header and give it to tp | |
447 | * No return value. | |
448 | */ | |
449 | ProtoHook | |
e02c2019 | 450 | tpclnp_input(m, src, dst, clnp_len, ce_bit) |
c0dbf2a0 KS |
451 | register struct mbuf *m; |
452 | struct sockaddr_iso *src, *dst; | |
e02c2019 | 453 | int clnp_len, ce_bit; |
238ab140 | 454 | { |
238ab140 | 455 | int s = splnet(); |
a50e2bc0 | 456 | struct mbuf *tp_inputprep(); |
c0dbf2a0 | 457 | int tp_input(), cltp_input(), (*input)() = tp_input; |
238ab140 KS |
458 | |
459 | IncStat(ts_pkt_rcvd); | |
460 | ||
461 | IFDEBUG(D_TPINPUT) | |
462 | printf("tpclnp_input: m 0x%x clnp_len 0x%x\n", m, clnp_len); | |
463 | dump_mbuf(m, "at tpclnp_input"); | |
464 | ENDDEBUG | |
465 | /* | |
466 | * CLNP gives us an mbuf chain WITH the clnp header pulled up, | |
467 | * and the length of the clnp header. | |
468 | * First, strip off the Clnp header. leave the mbuf there for the | |
469 | * pullup that follows. | |
470 | */ | |
471 | ||
472 | m->m_len -= clnp_len; | |
a50e2bc0 | 473 | m->m_data += clnp_len; |
238ab140 | 474 | |
a50e2bc0 | 475 | m = tp_inputprep(m); |
c0dbf2a0 KS |
476 | if (m == 0) |
477 | return 0; | |
478 | if (mtod(m, u_char *)[1] == UD_TPDU_type) | |
479 | input = cltp_input; | |
238ab140 KS |
480 | |
481 | IFDEBUG(D_TPINPUT) | |
482 | dump_mbuf(m, "after tpclnp_input both pullups"); | |
483 | ENDDEBUG | |
484 | ||
238ab140 | 485 | IFDEBUG(D_TPISO) |
c0dbf2a0 KS |
486 | printf("calling %sinput : src 0x%x, dst 0x%x, src addr:\n", |
487 | (input == tp_input ? "tp_" : "clts_"), src, dst); | |
488 | dump_isoaddr(src); | |
238ab140 | 489 | printf(" dst addr:\n"); |
c0dbf2a0 | 490 | dump_isoaddr(dst); |
238ab140 KS |
491 | ENDDEBUG |
492 | ||
c0dbf2a0 | 493 | (void) (*input)(m, (struct sockaddr *)src, (struct sockaddr *)dst, |
e02c2019 | 494 | 0, tpclnp_output_dg, ce_bit); |
238ab140 KS |
495 | |
496 | IFDEBUG(D_QUENCH) | |
497 | { | |
498 | if(time.tv_usec & 0x4 && time.tv_usec & 0x40) { | |
499 | printf("tpclnp_input: FAKING %s\n", | |
500 | tp_stat.ts_pkt_rcvd & 0x1?"QUENCH":"QUENCH2"); | |
501 | if(tp_stat.ts_pkt_rcvd & 0x1) { | |
502 | tpclnp_ctlinput(PRC_QUENCH, &src); | |
503 | } else { | |
504 | tpclnp_ctlinput(PRC_QUENCH2, &src); | |
505 | } | |
506 | } | |
507 | } | |
508 | ENDDEBUG | |
509 | ||
510 | splx(s); | |
511 | return 0; | |
238ab140 KS |
512 | } |
513 | ||
514 | ProtoHook | |
515 | iso_rtchange() | |
516 | { | |
517 | return 0; | |
518 | } | |
519 | ||
520 | /* | |
521 | * CALLED FROM: | |
522 | * tpclnp_ctlinput() | |
523 | * FUNCTION and ARGUMENTS: | |
524 | * find the tpcb pointer and pass it to tp_quench | |
525 | */ | |
526 | void | |
527 | tpiso_decbit(isop) | |
528 | struct isopcb *isop; | |
529 | { | |
a50e2bc0 | 530 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH2); |
238ab140 KS |
531 | } |
532 | /* | |
533 | * CALLED FROM: | |
534 | * tpclnp_ctlinput() | |
535 | * FUNCTION and ARGUMENTS: | |
536 | * find the tpcb pointer and pass it to tp_quench | |
537 | */ | |
538 | void | |
539 | tpiso_quench(isop) | |
540 | struct isopcb *isop; | |
541 | { | |
a50e2bc0 | 542 | tp_quench((struct tp_pcb *)isop->isop_socket->so_tpcb, PRC_QUENCH); |
238ab140 KS |
543 | } |
544 | ||
545 | /* | |
546 | * CALLED FROM: | |
547 | * The network layer through the protosw table. | |
548 | * FUNCTION and ARGUMENTS: | |
549 | * When clnp an ICMP-like msg this gets called. | |
550 | * It either returns an error status to the user or | |
551 | * it causes all connections on this address to be aborted | |
552 | * by calling the appropriate xx_notify() routine. | |
553 | * (cmd) is the type of ICMP error. | |
554 | * (siso) is the address of the guy who sent the ER CLNPDU | |
555 | */ | |
556 | ProtoHook | |
557 | tpclnp_ctlinput(cmd, siso) | |
558 | int cmd; | |
559 | struct sockaddr_iso *siso; | |
560 | { | |
561 | extern u_char inetctlerrmap[]; | |
562 | extern ProtoHook tpiso_abort(); | |
563 | extern ProtoHook iso_rtchange(); | |
564 | extern ProtoHook tpiso_reset(); | |
a50e2bc0 | 565 | void iso_pcbnotify(); |
238ab140 KS |
566 | |
567 | IFDEBUG(D_TPINPUT) | |
c0dbf2a0 KS |
568 | printf("tpclnp_ctlinput1: cmd 0x%x addr: \n", cmd); |
569 | dump_isoaddr(siso); | |
238ab140 KS |
570 | ENDDEBUG |
571 | ||
572 | if (cmd < 0 || cmd > PRC_NCMDS) | |
573 | return 0; | |
c0dbf2a0 KS |
574 | if (siso->siso_family != AF_ISO) |
575 | return 0; | |
238ab140 KS |
576 | switch (cmd) { |
577 | ||
578 | case PRC_QUENCH2: | |
c0dbf2a0 | 579 | iso_pcbnotify(&tp_isopcb, siso, 0, (int (*)())tpiso_decbit); |
238ab140 KS |
580 | break; |
581 | ||
582 | case PRC_QUENCH: | |
c0dbf2a0 | 583 | iso_pcbnotify(&tp_isopcb, siso, 0, (int (*)())tpiso_quench); |
238ab140 KS |
584 | break; |
585 | ||
586 | case PRC_TIMXCEED_REASS: | |
587 | case PRC_ROUTEDEAD: | |
c0dbf2a0 | 588 | iso_pcbnotify(&tp_isopcb, siso, 0, tpiso_reset); |
238ab140 KS |
589 | break; |
590 | ||
591 | case PRC_HOSTUNREACH: | |
592 | case PRC_UNREACH_NET: | |
593 | case PRC_IFDOWN: | |
594 | case PRC_HOSTDEAD: | |
c0dbf2a0 | 595 | iso_pcbnotify(&tp_isopcb, siso, |
238ab140 KS |
596 | (int)inetctlerrmap[cmd], iso_rtchange); |
597 | break; | |
598 | ||
599 | default: | |
600 | /* | |
601 | case PRC_MSGSIZE: | |
602 | case PRC_UNREACH_HOST: | |
603 | case PRC_UNREACH_PROTOCOL: | |
604 | case PRC_UNREACH_PORT: | |
605 | case PRC_UNREACH_NEEDFRAG: | |
606 | case PRC_UNREACH_SRCFAIL: | |
607 | case PRC_REDIRECT_NET: | |
608 | case PRC_REDIRECT_HOST: | |
609 | case PRC_REDIRECT_TOSNET: | |
610 | case PRC_REDIRECT_TOSHOST: | |
611 | case PRC_TIMXCEED_INTRANS: | |
612 | case PRC_PARAMPROB: | |
613 | */ | |
c0dbf2a0 | 614 | iso_pcbnotify(&tp_isopcb, siso, (int)inetctlerrmap[cmd], tpiso_abort); |
238ab140 KS |
615 | break; |
616 | } | |
617 | return 0; | |
618 | } | |
c0dbf2a0 KS |
619 | /* |
620 | * XXX - Variant which is called by clnp_er.c with an isoaddr rather | |
621 | * than a sockaddr_iso. | |
622 | */ | |
623 | ||
624 | static struct sockaddr_iso siso = {sizeof(siso), AF_ISO}; | |
625 | tpclnp_ctlinput1(cmd, isoa) | |
626 | int cmd; | |
627 | struct iso_addr *isoa; | |
628 | { | |
629 | bzero((caddr_t)&siso.siso_addr, sizeof(siso.siso_addr)); | |
630 | bcopy((caddr_t)isoa, (caddr_t)&siso.siso_addr, isoa->isoa_len); | |
631 | tpclnp_ctlinput(cmd, &siso); | |
632 | } | |
238ab140 KS |
633 | |
634 | /* | |
635 | * These next 2 routines are | |
636 | * CALLED FROM: | |
637 | * xxx_notify() from tp_ctlinput() when | |
638 | * net level gets some ICMP-equiv. type event. | |
639 | * FUNCTION and ARGUMENTS: | |
640 | * Cause the connection to be aborted with some sort of error | |
641 | * reason indicating that the network layer caused the abort. | |
642 | * Fakes an ER TPDU so we can go through the driver. | |
643 | * abort always aborts the TP connection. | |
644 | * reset may or may not, depending on the TP class that's in use. | |
645 | */ | |
646 | ProtoHook | |
647 | tpiso_abort(isop) | |
648 | struct isopcb *isop; | |
649 | { | |
650 | struct tp_event e; | |
651 | ||
652 | IFDEBUG(D_CONN) | |
653 | printf("tpiso_abort 0x%x\n", isop); | |
654 | ENDDEBUG | |
655 | e.ev_number = ER_TPDU; | |
656 | e.ATTR(ER_TPDU).e_reason = ECONNABORTED; | |
657 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
658 | } | |
659 | ||
660 | ProtoHook | |
661 | tpiso_reset(isop) | |
662 | struct isopcb *isop; | |
663 | { | |
664 | struct tp_event e; | |
665 | ||
666 | e.ev_number = T_NETRESET; | |
667 | return tp_driver((struct tp_pcb *)isop->isop_socket->so_tpcb, &e); | |
668 | ||
669 | } | |
670 | ||
c0dbf2a0 | 671 | #include "cltp_usrreq.c" |
238ab140 | 672 | #endif ISO |