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3202a7cd 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 | |
29 | * | |
30 | * $Header: tp_subr2.c,v 5.5 88/11/18 17:28:55 nhall Exp $ | |
31 | * $Source: /usr/argo/sys/netiso/RCS/tp_subr2.c,v $ | |
194a383a | 32 | * @(#)tp_subr2.c 7.5 (Berkeley) %G% |
3202a7cd KS |
33 | * |
34 | * Some auxiliary routines: | |
35 | * tp_protocol_error: required by xebec- called when a combo of state, | |
36 | * event, predicate isn't covered for by the transition file. | |
37 | * tp_indicate: gives indications(signals) to the user process | |
38 | * tp_getoptions: initializes variables that are affected by the options | |
39 | * chosen. | |
40 | */ | |
41 | ||
42 | #ifndef lint | |
43 | static char *rcsid = "$Header: tp_subr2.c,v 5.5 88/11/18 17:28:55 nhall Exp $"; | |
44 | #endif lint | |
45 | ||
3202a7cd KS |
46 | /* this def'n is to cause the expansion of this macro in the |
47 | * routine tp_local_credit : | |
48 | */ | |
49 | #define LOCAL_CREDIT_EXPAND | |
50 | ||
51 | #include "param.h" | |
52 | #include "mbuf.h" | |
53 | #include "socket.h" | |
54 | #include "socketvar.h" | |
55 | #include "domain.h" | |
56 | #include "protosw.h" | |
57 | #include "errno.h" | |
58 | #include "types.h" | |
59 | #include "time.h" | |
60 | #include "kernel.h" | |
61 | #undef MNULL | |
a50e2bc0 KS |
62 | #include "argo_debug.h" |
63 | #include "tp_param.h" | |
64 | #include "tp_ip.h" | |
65 | #include "iso.h" | |
66 | #include "iso_errno.h" | |
67 | #include "iso_pcb.h" | |
68 | #include "tp_timer.h" | |
69 | #include "tp_stat.h" | |
70 | #include "tp_tpdu.h" | |
71 | #include "tp_pcb.h" | |
72 | #include "tp_seq.h" | |
73 | #include "tp_trace.h" | |
74 | #include "tp_user.h" | |
75 | #include "cons.h" | |
3202a7cd | 76 | |
194a383a KS |
77 | #include "../net/if.h" |
78 | #ifdef TRUE | |
79 | #undef FALSE | |
80 | #undef TRUE | |
81 | #endif | |
82 | #include "../netccitt/x25.h" | |
83 | #include "../netccitt/pk.h" | |
84 | #include "../netccitt/pk_var.h" | |
85 | ||
3202a7cd KS |
86 | /* |
87 | * NAME: tp_local_credit() | |
88 | * | |
89 | * CALLED FROM: | |
90 | * tp_emit(), tp_usrreq() | |
91 | * | |
92 | * FUNCTION and ARGUMENTS: | |
93 | * Computes the local credit and stashes it in tpcb->tp_lcredit. | |
94 | * It's a macro in the production system rather than a procdure. | |
95 | * | |
96 | * RETURNS: | |
97 | * | |
98 | * SIDE EFFECTS: | |
99 | * | |
100 | * NOTES: | |
101 | * This doesn't actually get called in a production system - | |
102 | * the macro gets expanded instead in place of calls to this proc. | |
103 | * But for debugging, we call this and that allows us to add | |
104 | * debugging messages easily here. | |
105 | */ | |
106 | void | |
107 | tp_local_credit(tpcb) | |
108 | struct tp_pcb *tpcb; | |
109 | { | |
110 | LOCAL_CREDIT(tpcb); | |
111 | IFDEBUG(D_CREDIT) | |
112 | printf("ref 0x%x lcdt 0x%x l_tpdusize 0x%x decbit 0x%x\n", | |
113 | tpcb->tp_refp - tp_ref, | |
114 | tpcb->tp_lcredit, | |
115 | tpcb->tp_l_tpdusize, | |
116 | tpcb->tp_decbit, | |
117 | tpcb->tp_cong_win | |
118 | ); | |
119 | ENDDEBUG | |
120 | IFTRACE(D_CREDIT) | |
121 | tptraceTPCB(TPPTmisc, | |
122 | "lcdt tpdusz \n", | |
123 | tpcb->tp_lcredit, tpcb->tp_l_tpdusize, 0, 0); | |
124 | ENDTRACE | |
125 | } | |
126 | ||
127 | /* | |
128 | * NAME: tp_protocol_error() | |
129 | * | |
130 | * CALLED FROM: | |
131 | * tp_driver(), when it doesn't know what to do with | |
132 | * a combo of event, state, predicate | |
133 | * | |
134 | * FUNCTION and ARGUMENTS: | |
135 | * print error mesg | |
136 | * | |
137 | * RETURN VALUE: | |
138 | * EIO - always | |
139 | * | |
140 | * SIDE EFFECTS: | |
141 | * | |
142 | * NOTES: | |
143 | */ | |
144 | int | |
145 | tp_protocol_error(e,tpcb) | |
146 | struct tp_event *e; | |
147 | struct tp_pcb *tpcb; | |
148 | { | |
149 | printf("TP PROTOCOL ERROR! tpcb 0x%x event 0x%x, state 0x%x\n", | |
150 | tpcb, e->ev_number, tpcb->tp_state); | |
151 | IFTRACE(D_DRIVER) | |
152 | tptraceTPCB(TPPTmisc, "PROTOCOL ERROR tpcb event state", | |
153 | tpcb, e->ev_number, tpcb->tp_state, 0 ); | |
154 | ENDTRACE | |
155 | return EIO; /* for lack of anything better */ | |
156 | } | |
157 | ||
158 | ||
159 | /* Not used at the moment */ | |
160 | ProtoHook | |
161 | tp_drain() | |
162 | { | |
163 | return 0; | |
164 | } | |
165 | ||
166 | ||
167 | /* | |
168 | * NAME: tp_indicate() | |
169 | * | |
170 | * CALLED FROM: | |
171 | * tp.trans when XPD arrive, when a connection is being disconnected by | |
172 | * the arrival of a DR or ER, and when a connection times out. | |
173 | * | |
174 | * FUNCTION and ARGUMENTS: | |
175 | * (ind) is the type of indication : T_DISCONNECT, T_XPD | |
176 | * (error) is an E* value that will be put in the socket structure | |
177 | * to be passed along to the user later. | |
178 | * Gives a SIGURG to the user process or group indicated by the socket | |
179 | * attached to the tpcb. | |
180 | * | |
181 | * RETURNS: Rien | |
182 | * | |
183 | * SIDE EFFECTS: | |
184 | * | |
185 | * NOTES: | |
186 | */ | |
187 | void | |
188 | tp_indicate(ind, tpcb, error) | |
189 | int ind; | |
190 | u_short error; | |
191 | register struct tp_pcb *tpcb; | |
192 | { | |
193 | register struct socket *so = tpcb->tp_sock; | |
194 | IFTRACE(D_INDICATION) | |
9aed0596 KS |
195 | tptraceTPCB(TPPTindicate, ind, *(u_short *)(tpcb->tp_lsuffix), |
196 | *(u_short *)(tpcb->tp_fsuffix), error,so->so_pgid); | |
3202a7cd KS |
197 | ENDTRACE |
198 | IFDEBUG(D_INDICATION) | |
a50e2bc0 | 199 | char *ls, *fs; |
3202a7cd KS |
200 | ls = tpcb->tp_lsuffix, |
201 | fs = tpcb->tp_fsuffix, | |
202 | ||
203 | printf( | |
a50e2bc0 | 204 | "indicate 0x%x lsuf 0x%02x%02x fsuf 0x%02x%02x err 0x%x noind 0x%x ref 0x%x\n", |
3202a7cd KS |
205 | ind, |
206 | *ls, *(ls+1), *fs, *(fs+1), | |
a50e2bc0 | 207 | error, /*so->so_pgrp,*/ |
3202a7cd KS |
208 | tpcb->tp_no_disc_indications, |
209 | tpcb->tp_lref); | |
210 | ENDDEBUG | |
211 | ||
212 | so->so_error = error; | |
213 | ||
214 | if (ind == T_DISCONNECT) { | |
215 | if ( tpcb->tp_no_disc_indications ) | |
216 | return; | |
217 | } | |
218 | IFTRACE(D_INDICATION) | |
219 | tptraceTPCB(TPPTmisc, "doing sohasoutofband(so)", so,0,0,0); | |
220 | ENDTRACE | |
221 | sohasoutofband(so); | |
222 | } | |
223 | ||
224 | /* | |
225 | * NAME : tp_getoptions() | |
226 | * | |
227 | * CALLED FROM: | |
228 | * tp.trans whenever we go into OPEN state | |
229 | * | |
230 | * FUNCTION and ARGUMENTS: | |
231 | * sets the proper flags and values in the tpcb, to control | |
232 | * the appropriate actions for the given class, options, | |
233 | * sequence space, etc, etc. | |
234 | * | |
235 | * RETURNS: Nada | |
236 | * | |
237 | * SIDE EFFECTS: | |
238 | * | |
239 | * NOTES: | |
240 | */ | |
241 | void | |
242 | tp_getoptions(tpcb) | |
243 | struct tp_pcb *tpcb; | |
244 | { | |
245 | tpcb->tp_seqmask = | |
246 | tpcb->tp_xtd_format ? TP_XTD_FMT_MASK : TP_NML_FMT_MASK ; | |
247 | tpcb->tp_seqbit = | |
248 | tpcb->tp_xtd_format ? TP_XTD_FMT_BIT : TP_NML_FMT_BIT ; | |
249 | tpcb->tp_seqhalf = tpcb->tp_seqbit >> 1; | |
250 | tpcb->tp_dt_ticks = | |
251 | MAX(tpcb->tp_dt_ticks, (tpcb->tp_peer_acktime + 2)); | |
252 | ||
253 | } | |
254 | ||
255 | /* | |
256 | * NAME: tp_recycle_tsuffix() | |
257 | * | |
258 | * CALLED FROM: | |
259 | * Called when a ref is frozen. | |
260 | * | |
261 | * FUNCTION and ARGUMENTS: | |
262 | * allows the suffix to be reused. | |
263 | * | |
264 | * RETURNS: zilch | |
265 | * | |
266 | * SIDE EFFECTS: | |
267 | * | |
268 | * NOTES: | |
269 | */ | |
270 | void | |
271 | tp_recycle_tsuffix(tpcb) | |
272 | struct tp_pcb *tpcb; | |
273 | { | |
a50e2bc0 KS |
274 | bzero((caddr_t)tpcb->tp_lsuffix, sizeof( tpcb->tp_lsuffix)); |
275 | bzero((caddr_t)tpcb->tp_fsuffix, sizeof( tpcb->tp_fsuffix)); | |
3202a7cd KS |
276 | tpcb->tp_fsuffixlen = tpcb->tp_lsuffixlen = 0; |
277 | ||
278 | (tpcb->tp_nlproto->nlp_recycle_suffix)(tpcb->tp_npcb); | |
279 | } | |
280 | ||
281 | /* | |
282 | * NAME: tp_quench() | |
283 | * | |
284 | * CALLED FROM: | |
285 | * tp{af}_quench() when ICMP source quench or similar thing arrives. | |
286 | * | |
287 | * FUNCTION and ARGUMENTS: | |
288 | * Drop the congestion window back to 1. | |
289 | * Congestion window scheme: | |
290 | * Initial value is 1. ("slow start" as Nagle, et. al. call it) | |
291 | * For each good ack that arrives, the congestion window is increased | |
292 | * by 1 (up to max size of logical infinity, which is to say, | |
293 | * it doesn't wrap around). | |
294 | * Source quench causes it to drop back to 1. | |
295 | * tp_send() uses the smaller of (regular window, congestion window). | |
296 | * One retransmission strategy option is to have any retransmission | |
297 | * cause reset the congestion window back to 1. | |
298 | * | |
299 | * (cmd) is either PRC_QUENCH: source quench, or | |
300 | * PRC_QUENCH2: dest. quench (dec bit) | |
301 | * | |
302 | * RETURNS: | |
303 | * | |
304 | * SIDE EFFECTS: | |
305 | * | |
306 | * NOTES: | |
307 | */ | |
308 | void | |
309 | tp_quench( tpcb, cmd ) | |
310 | struct tp_pcb *tpcb; | |
311 | int cmd; | |
312 | { | |
313 | IFDEBUG(D_QUENCH) | |
314 | printf("tp_quench tpcb 0x%x ref 0x%x sufx 0x%x\n", | |
9aed0596 | 315 | tpcb, tpcb->tp_lref, *(u_short *)(tpcb->tp_lsuffix)); |
3202a7cd KS |
316 | printf("cong_win 0x%x decbit 0x%x \n", |
317 | tpcb->tp_cong_win, tpcb->tp_decbit); | |
318 | ENDDEBUG | |
319 | switch(cmd) { | |
320 | case PRC_QUENCH: | |
321 | tpcb->tp_cong_win = 1; | |
322 | IncStat(ts_quench); | |
323 | break; | |
324 | case PRC_QUENCH2: | |
325 | tpcb->tp_cong_win = 1; /* might as well quench source also */ | |
326 | tpcb->tp_decbit = TP_DECBIT_CLEAR_COUNT; | |
327 | IncStat(ts_rcvdecbit); | |
328 | break; | |
329 | } | |
330 | } | |
331 | ||
332 | ||
333 | /* | |
334 | * NAME: tp_netcmd() | |
335 | * | |
336 | * CALLED FROM: | |
337 | * | |
338 | * FUNCTION and ARGUMENTS: | |
339 | * | |
340 | * RETURNS: | |
341 | * | |
342 | * SIDE EFFECTS: | |
343 | * | |
344 | * NOTES: | |
345 | */ | |
346 | tp_netcmd( tpcb, cmd ) | |
347 | struct tp_pcb *tpcb; | |
348 | int cmd; | |
349 | { | |
194a383a KS |
350 | #ifdef TPCONS |
351 | struct isopcb *isop; | |
352 | struct pklcd *lcp; | |
353 | ||
354 | if (tpcb->tp_netservice != ISO_CONS) | |
355 | return; | |
356 | isop = (struct isopcb *)tpcb->tp_npcb; | |
357 | lcp = (struct pklcd *)isop->isop_chan; | |
3202a7cd KS |
358 | switch (cmd) { |
359 | ||
360 | case CONN_CLOSE: | |
361 | case CONN_REFUSE: | |
194a383a KS |
362 | if (isop->isop_refcnt == 1) |
363 | pk_disconnect(lcp); | |
364 | isop->isop_chan = 0; | |
365 | isop->isop_refcnt = 0; | |
3202a7cd KS |
366 | break; |
367 | ||
368 | default: | |
369 | printf("tp_netcmd(0x%x, 0x%x) NOT IMPLEMENTED\n", tpcb, cmd); | |
370 | break; | |
371 | } | |
194a383a | 372 | #else TPCONS |
3202a7cd | 373 | printf("tp_netcmd(): X25 NOT CONFIGURED!!\n"); |
194a383a | 374 | #endif |
3202a7cd KS |
375 | } |
376 | /* | |
377 | * CALLED FROM: | |
378 | * tp_ctloutput() and tp_emit() | |
379 | * FUNCTION and ARGUMENTS: | |
380 | * Convert a class mask to the highest numeric value it represents. | |
381 | */ | |
382 | ||
383 | int | |
384 | tp_mask_to_num(x) | |
385 | u_char x; | |
386 | { | |
387 | register int j; | |
388 | ||
389 | for(j = 4; j>=0 ;j--) { | |
390 | if(x & (1<<j)) | |
391 | break; | |
392 | } | |
393 | ASSERT( (j == 4) || (j == 0) ); /* for now */ | |
394 | if( (j != 4) && (j != 0) ) { | |
395 | printf("ASSERTION ERROR: tp_mask_to_num: x 0x%x j %d\n", | |
396 | x, j); | |
397 | } | |
398 | IFTRACE(D_TPINPUT) | |
399 | tptrace(TPPTmisc, "tp_mask_to_num(x) returns j", x, j, 0, 0); | |
400 | ENDTRACE | |
401 | IFDEBUG(D_TPINPUT) | |
402 | printf("tp_mask_to_num(0x%x) returns 0x%x\n", x, j); | |
403 | ENDDEBUG | |
404 | return j; | |
405 | } | |
406 | ||
407 | static | |
408 | copyQOSparms(src, dst) | |
409 | struct tp_conn_param *src, *dst; | |
410 | { | |
411 | /* copy all but the bits stuff at the end */ | |
412 | #define COPYSIZE (12 * sizeof(short)) | |
413 | ||
a50e2bc0 | 414 | bcopy((caddr_t)src, (caddr_t)dst, COPYSIZE); |
3202a7cd KS |
415 | dst->p_tpdusize = src->p_tpdusize; |
416 | dst->p_ack_strat = src->p_ack_strat; | |
417 | dst->p_rx_strat = src->p_rx_strat; | |
418 | #undef COPYSIZE | |
419 | } | |
420 | ||
421 | /* | |
422 | * CALLED FROM: | |
423 | * tp_usrreq on PRU_CONNECT and tp_input on receipt of CR | |
424 | * | |
425 | * FUNCTION and ARGUMENTS: | |
426 | * route directly to x.25 if the address is type 37 - GROT. | |
427 | * furthermore, let TP0 handle only type-37 addresses | |
428 | * | |
429 | * Since this assumes that its address argument is in a mbuf, the | |
430 | * parameter was changed to reflect this assumtion. This also | |
431 | * implies that an mbuf must be allocated when this is | |
432 | * called from tp_input | |
433 | * | |
434 | * RETURNS: | |
435 | * errno value : | |
436 | * EAFNOSUPPORT if can't find an nl_protosw for x.25 (really could panic) | |
437 | * ECONNREFUSED if trying to run TP0 with non-type 37 address | |
438 | * possibly other E* returned from cons_netcmd() | |
439 | * NOTE: | |
440 | * Would like to eliminate as much of this as possible -- | |
441 | * only one set of defaults (let the user set the parms according | |
442 | * to parameters provided in the directory service). | |
443 | * Left here for now 'cause we don't yet have a clean way to handle | |
444 | * it on the passive end. | |
445 | */ | |
446 | int | |
447 | tp_route_to( m, tpcb, channel) | |
448 | struct mbuf *m; | |
449 | register struct tp_pcb *tpcb; | |
194a383a | 450 | caddr_t channel; |
3202a7cd KS |
451 | { |
452 | register struct sockaddr_iso *siso; /* NOTE: this may be a sockaddr_in */ | |
453 | extern struct tp_conn_param tp_conn_param[]; | |
194a383a | 454 | struct pklcd *lcp = (struct pklcd *)channel; |
3202a7cd | 455 | int error = 0; |
3202a7cd KS |
456 | |
457 | siso = mtod(m, struct sockaddr_iso *); | |
458 | IFTRACE(D_CONN) | |
459 | tptraceTPCB(TPPTmisc, | |
460 | "route_to: so afi netservice class", | |
a50e2bc0 | 461 | tpcb->tp_sock, siso->siso_addr.isoa_genaddr[0], tpcb->tp_netservice, |
3202a7cd KS |
462 | tpcb->tp_class); |
463 | ENDTRACE | |
464 | IFDEBUG(D_CONN) | |
465 | printf("tp_route_to( m x%x, channel 0x%x, tpcb 0x%x netserv 0x%x)\n", | |
466 | m, channel, tpcb, tpcb->tp_netservice); | |
467 | printf("m->mlen x%x, m->m_data:\n", m->m_len); | |
468 | dump_buf(mtod(m, caddr_t), m->m_len); | |
469 | ENDDEBUG | |
194a383a | 470 | if (siso->siso_family != tpcb->tp_domain) { |
3202a7cd KS |
471 | error = EAFNOSUPPORT; |
472 | goto done; | |
473 | } | |
a50e2bc0 KS |
474 | IFDEBUG(D_CONN) |
475 | printf("tp_route_to calling nlp_pcbconn, netserv %d\n", | |
476 | tpcb->tp_netservice); | |
477 | ENDDEBUG | |
194a383a KS |
478 | #ifdef TPCONS |
479 | if (lcp) { | |
480 | struct isopcb *isop = (struct isopcb *)lcp->lcd_upnext, | |
481 | *isop_new = (struct isopcb *)tpcb->tp_sock->so_pcb; | |
482 | remque(isop_new); | |
483 | free(isop_new, M_PCB); | |
484 | tpcb->tp_sock->so_pcb = (caddr_t)isop; | |
485 | if (isop->isop_refcnt == 0) { | |
486 | extern struct isopcb tp_isopcb; | |
487 | remque(isop); | |
488 | insque(isop, &tp_isopcb); | |
489 | isop->isop_head = &tp_isopcb; | |
490 | iso_putsufx(isop, tpcb->tp_lsuffix, tpcb->tp_lsuffixlen, TP_LOCAL); | |
491 | } | |
492 | /* else there are already connections sharing this */ | |
493 | isop->isop_refcnt++; | |
494 | } else | |
495 | #endif | |
496 | error = (tpcb->tp_nlproto->nlp_pcbconn)(tpcb->tp_sock->so_pcb, m); | |
a50e2bc0 KS |
497 | if( error ) |
498 | goto done; | |
499 | ||
3202a7cd KS |
500 | { |
501 | register int save_netservice = tpcb->tp_netservice; | |
502 | ||
503 | switch(tpcb->tp_netservice) { | |
504 | case ISO_COSNS: | |
505 | case ISO_CLNS: | |
506 | /* This is a kludge but seems necessary so the passive end | |
507 | * can get long enough timers. sigh. | |
a50e2bc0 | 508 | if( siso->siso_addr.osinet_idi[1] == (u_char)IDI_OSINET ) |
3202a7cd | 509 | */ |
44f52ea5 | 510 | #define IDI_OSINET 0x0004 /* bcd of "0004" */ |
a50e2bc0 | 511 | if( siso->siso_addr.isoa_genaddr[2] == (char)IDI_OSINET ) { |
3202a7cd KS |
512 | if( tpcb->tp_dont_change_params == 0) { |
513 | copyQOSparms( &tp_conn_param[ISO_COSNS], | |
514 | &tpcb->_tp_param); | |
515 | } | |
516 | tpcb->tp_flags |= TPF_NLQOS_PDN; | |
517 | } | |
518 | /* drop through to IN_CLNS*/ | |
519 | case IN_CLNS: | |
a50e2bc0 KS |
520 | if (iso_localifa(siso)) |
521 | tpcb->tp_flags |= TPF_PEER_ON_SAMENET; | |
3202a7cd KS |
522 | if( (tpcb->tp_class & TP_CLASS_4)==0 ) { |
523 | error = EPROTOTYPE; | |
524 | break; | |
525 | } | |
526 | tpcb->tp_class = TP_CLASS_4; /* IGNORE dont_change_parms */ | |
527 | break; | |
528 | ||
529 | case ISO_CONS: | |
194a383a | 530 | #ifdef TPCONS |
3202a7cd KS |
531 | tpcb->tp_flags |= TPF_NLQOS_PDN; |
532 | if( tpcb->tp_dont_change_params == 0 ) { | |
533 | copyQOSparms( &tp_conn_param[ISO_CONS], | |
534 | &tpcb->_tp_param); | |
535 | } | |
536 | /* | |
537 | * for use over x.25 really need a small receive window, | |
538 | * need to start slowly, need small max negotiable tpdu size, | |
539 | * and need to use the congestion window to the max | |
540 | * IGNORES tp_dont_change_params for these! | |
541 | */ | |
542 | if( tpcb->tp_sock->so_snd.sb_hiwat > 512 ) { | |
543 | (void) soreserve(tpcb->tp_sock, 512, 512 );/* GAG */ | |
544 | } | |
545 | tpcb->tp_rx_strat = TPRX_USE_CW; | |
546 | ||
547 | if( (tpcb->tp_nlproto != &nl_protosw[ISO_CONS]) ) { | |
3202a7cd KS |
548 | IFDEBUG(D_CONN) |
549 | printf( | |
550 | "tp_route_to( CHANGING nlproto old 0x%x new 0x%x)\n", | |
551 | tpcb->tp_nlproto , &nl_protosw[ISO_CONS]); | |
552 | ENDDEBUG | |
553 | tpcb->tp_nlproto = &nl_protosw[ISO_CONS]; | |
554 | } | |
3202a7cd KS |
555 | /* class 4 doesn't need to open a vc now - may use one already |
556 | * opened or may open one only when it sends a pkt. | |
557 | */ | |
194a383a | 558 | #else TPCONS |
3202a7cd | 559 | error = ECONNREFUSED; |
194a383a | 560 | #endif TPCONS |
3202a7cd KS |
561 | break; |
562 | default: | |
563 | error = EPROTOTYPE; | |
564 | } | |
565 | ||
566 | ASSERT( save_netservice == tpcb->tp_netservice); | |
567 | } | |
194a383a | 568 | if (error) { |
3202a7cd KS |
569 | tp_netcmd( tpcb, CONN_CLOSE); |
570 | goto done; | |
571 | } | |
3202a7cd KS |
572 | { /* start with the global rtt, rtv stats */ |
573 | register int i = | |
574 | (int) tpcb->tp_flags & (TPF_PEER_ON_SAMENET | TPF_NLQOS_PDN); | |
575 | ||
576 | tpcb->tp_rtt = tp_stat.ts_rtt[i]; | |
577 | tpcb->tp_rtv = tp_stat.ts_rtv[i]; | |
578 | } | |
579 | done: | |
580 | IFDEBUG(D_CONN) | |
581 | printf("tp_route_to returns 0x%x\n", error); | |
582 | ENDDEBUG | |
583 | IFTRACE(D_CONN) | |
584 | tptraceTPCB(TPPTmisc, "route_to: returns: error netserv class", error, | |
585 | tpcb->tp_netservice, tpcb->tp_class, 0); | |
586 | ENDTRACE | |
587 | return error; | |
588 | } | |
589 | ||
590 | #ifdef TP_PERF_MEAS | |
591 | /* | |
592 | * CALLED FROM: | |
593 | * tp_ctloutput() when the user sets TPOPT_PERF_MEAS on | |
594 | * and tp_newsocket() when a new connection is made from | |
595 | * a listening socket with tp_perf_on == true. | |
596 | * FUNCTION and ARGUMENTS: | |
597 | * (tpcb) is the usual; this procedure gets a clear cluster mbuf for | |
598 | * a tp_pmeas structure, and makes tpcb->tp_p_meas point to it. | |
599 | * RETURN VALUE: | |
600 | * ENOBUFS if it cannot get a cluster mbuf. | |
601 | */ | |
602 | ||
603 | int | |
604 | tp_setup_perf(tpcb) | |
605 | register struct tp_pcb *tpcb; | |
606 | { | |
607 | register struct mbuf *q; | |
608 | ||
a50e2bc0 KS |
609 | if( tpcb->tp_p_meas == 0 ) { |
610 | MGET(q, M_WAITOK, MT_PCB); | |
3202a7cd KS |
611 | if (q == 0) |
612 | return ENOBUFS; | |
a50e2bc0 KS |
613 | MCLGET(q, M_WAITOK); |
614 | if ((q->m_flags & M_EXT) == 0) { | |
615 | (void) m_free(q); | |
3202a7cd | 616 | return ENOBUFS; |
3202a7cd | 617 | } |
a50e2bc0 KS |
618 | q->m_len = sizeof (struct tp_pmeas); |
619 | tpcb->tp_p_mbuf = q; | |
620 | tpcb->tp_p_meas = mtod(q, struct tp_pmeas *); | |
621 | bzero( (caddr_t)tpcb->tp_p_meas, sizeof (struct tp_pmeas) ); | |
622 | IFDEBUG(D_PERF_MEAS) | |
623 | printf( | |
624 | "tpcb 0x%x so 0x%x ref 0x%x tp_p_meas 0x%x tp_perf_on 0x%x\n", | |
625 | tpcb, tpcb->tp_sock, tpcb->tp_lref, | |
626 | tpcb->tp_p_meas, tpcb->tp_perf_on); | |
627 | ENDDEBUG | |
628 | tpcb->tp_perf_on = 1; | |
3202a7cd KS |
629 | } |
630 | return 0; | |
631 | } | |
632 | #endif TP_PERF_MEAS | |
633 | ||
634 | #ifdef ARGO_DEBUG | |
635 | dump_addr (addr) | |
636 | register struct sockaddr *addr; | |
637 | { | |
638 | switch( addr->sa_family ) { | |
639 | case AF_INET: | |
a50e2bc0 | 640 | dump_inaddr((struct sockaddr_in *)addr); |
3202a7cd | 641 | break; |
a50e2bc0 | 642 | #ifdef ISO |
3202a7cd | 643 | case AF_ISO: |
a50e2bc0 | 644 | dump_isoaddr((struct sockaddr_iso *)addr); |
3202a7cd | 645 | break; |
a50e2bc0 | 646 | #endif ISO |
3202a7cd KS |
647 | default: |
648 | printf("BAD AF: 0x%x\n", addr->sa_family); | |
649 | break; | |
650 | } | |
651 | } | |
652 | ||
a50e2bc0 KS |
653 | #define MAX_COLUMNS 8 |
654 | /* | |
655 | * Dump the buffer to the screen in a readable format. Format is: | |
656 | * | |
657 | * hex/dec where hex is the hex format, dec is the decimal format. | |
658 | * columns of hex/dec numbers will be printed, followed by the | |
659 | * character representations (if printable). | |
660 | */ | |
661 | Dump_buf(buf, len) | |
662 | caddr_t buf; | |
663 | int len; | |
664 | { | |
665 | int i,j; | |
666 | ||
667 | printf("Dump buf 0x%x len 0x%x\n", buf, len); | |
668 | for (i = 0; i < len; i += MAX_COLUMNS) { | |
669 | printf("+%d:\t", i); | |
670 | for (j = 0; j < MAX_COLUMNS; j++) { | |
671 | if (i + j < len) { | |
672 | printf("%x/%d\t", buf[i+j]&0xff, buf[i+j]); | |
673 | } else { | |
674 | printf(" "); | |
675 | } | |
676 | } | |
677 | ||
678 | for (j = 0; j < MAX_COLUMNS; j++) { | |
679 | if (i + j < len) { | |
680 | if (((buf[i+j]) > 31) && ((buf[i+j]) < 128)) | |
681 | printf("%c", buf[i+j]&0xff); | |
682 | else | |
683 | printf("."); | |
684 | } | |
685 | } | |
686 | printf("\n"); | |
687 | } | |
688 | } | |
689 | ||
690 | ||
3202a7cd KS |
691 | #endif ARGO_DEBUG |
692 |