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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 $ | |
9aed0596 | 32 | * @(#)tp_subr2.c 7.4 (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 | ||
46 | #include "argoxtwentyfive.h" | |
47 | ||
48 | /* this def'n is to cause the expansion of this macro in the | |
49 | * routine tp_local_credit : | |
50 | */ | |
51 | #define LOCAL_CREDIT_EXPAND | |
52 | ||
53 | #include "param.h" | |
54 | #include "mbuf.h" | |
55 | #include "socket.h" | |
56 | #include "socketvar.h" | |
57 | #include "domain.h" | |
58 | #include "protosw.h" | |
59 | #include "errno.h" | |
60 | #include "types.h" | |
61 | #include "time.h" | |
62 | #include "kernel.h" | |
63 | #undef MNULL | |
a50e2bc0 KS |
64 | #include "argo_debug.h" |
65 | #include "tp_param.h" | |
66 | #include "tp_ip.h" | |
67 | #include "iso.h" | |
68 | #include "iso_errno.h" | |
69 | #include "iso_pcb.h" | |
70 | #include "tp_timer.h" | |
71 | #include "tp_stat.h" | |
72 | #include "tp_tpdu.h" | |
73 | #include "tp_pcb.h" | |
74 | #include "tp_seq.h" | |
75 | #include "tp_trace.h" | |
76 | #include "tp_user.h" | |
77 | #include "cons.h" | |
3202a7cd KS |
78 | |
79 | /* | |
80 | * NAME: tp_local_credit() | |
81 | * | |
82 | * CALLED FROM: | |
83 | * tp_emit(), tp_usrreq() | |
84 | * | |
85 | * FUNCTION and ARGUMENTS: | |
86 | * Computes the local credit and stashes it in tpcb->tp_lcredit. | |
87 | * It's a macro in the production system rather than a procdure. | |
88 | * | |
89 | * RETURNS: | |
90 | * | |
91 | * SIDE EFFECTS: | |
92 | * | |
93 | * NOTES: | |
94 | * This doesn't actually get called in a production system - | |
95 | * the macro gets expanded instead in place of calls to this proc. | |
96 | * But for debugging, we call this and that allows us to add | |
97 | * debugging messages easily here. | |
98 | */ | |
99 | void | |
100 | tp_local_credit(tpcb) | |
101 | struct tp_pcb *tpcb; | |
102 | { | |
103 | LOCAL_CREDIT(tpcb); | |
104 | IFDEBUG(D_CREDIT) | |
105 | printf("ref 0x%x lcdt 0x%x l_tpdusize 0x%x decbit 0x%x\n", | |
106 | tpcb->tp_refp - tp_ref, | |
107 | tpcb->tp_lcredit, | |
108 | tpcb->tp_l_tpdusize, | |
109 | tpcb->tp_decbit, | |
110 | tpcb->tp_cong_win | |
111 | ); | |
112 | ENDDEBUG | |
113 | IFTRACE(D_CREDIT) | |
114 | tptraceTPCB(TPPTmisc, | |
115 | "lcdt tpdusz \n", | |
116 | tpcb->tp_lcredit, tpcb->tp_l_tpdusize, 0, 0); | |
117 | ENDTRACE | |
118 | } | |
119 | ||
120 | /* | |
121 | * NAME: tp_protocol_error() | |
122 | * | |
123 | * CALLED FROM: | |
124 | * tp_driver(), when it doesn't know what to do with | |
125 | * a combo of event, state, predicate | |
126 | * | |
127 | * FUNCTION and ARGUMENTS: | |
128 | * print error mesg | |
129 | * | |
130 | * RETURN VALUE: | |
131 | * EIO - always | |
132 | * | |
133 | * SIDE EFFECTS: | |
134 | * | |
135 | * NOTES: | |
136 | */ | |
137 | int | |
138 | tp_protocol_error(e,tpcb) | |
139 | struct tp_event *e; | |
140 | struct tp_pcb *tpcb; | |
141 | { | |
142 | printf("TP PROTOCOL ERROR! tpcb 0x%x event 0x%x, state 0x%x\n", | |
143 | tpcb, e->ev_number, tpcb->tp_state); | |
144 | IFTRACE(D_DRIVER) | |
145 | tptraceTPCB(TPPTmisc, "PROTOCOL ERROR tpcb event state", | |
146 | tpcb, e->ev_number, tpcb->tp_state, 0 ); | |
147 | ENDTRACE | |
148 | return EIO; /* for lack of anything better */ | |
149 | } | |
150 | ||
151 | ||
152 | /* Not used at the moment */ | |
153 | ProtoHook | |
154 | tp_drain() | |
155 | { | |
156 | return 0; | |
157 | } | |
158 | ||
159 | ||
160 | /* | |
161 | * NAME: tp_indicate() | |
162 | * | |
163 | * CALLED FROM: | |
164 | * tp.trans when XPD arrive, when a connection is being disconnected by | |
165 | * the arrival of a DR or ER, and when a connection times out. | |
166 | * | |
167 | * FUNCTION and ARGUMENTS: | |
168 | * (ind) is the type of indication : T_DISCONNECT, T_XPD | |
169 | * (error) is an E* value that will be put in the socket structure | |
170 | * to be passed along to the user later. | |
171 | * Gives a SIGURG to the user process or group indicated by the socket | |
172 | * attached to the tpcb. | |
173 | * | |
174 | * RETURNS: Rien | |
175 | * | |
176 | * SIDE EFFECTS: | |
177 | * | |
178 | * NOTES: | |
179 | */ | |
180 | void | |
181 | tp_indicate(ind, tpcb, error) | |
182 | int ind; | |
183 | u_short error; | |
184 | register struct tp_pcb *tpcb; | |
185 | { | |
186 | register struct socket *so = tpcb->tp_sock; | |
187 | IFTRACE(D_INDICATION) | |
9aed0596 KS |
188 | tptraceTPCB(TPPTindicate, ind, *(u_short *)(tpcb->tp_lsuffix), |
189 | *(u_short *)(tpcb->tp_fsuffix), error,so->so_pgid); | |
3202a7cd KS |
190 | ENDTRACE |
191 | IFDEBUG(D_INDICATION) | |
a50e2bc0 | 192 | char *ls, *fs; |
3202a7cd KS |
193 | ls = tpcb->tp_lsuffix, |
194 | fs = tpcb->tp_fsuffix, | |
195 | ||
196 | printf( | |
a50e2bc0 | 197 | "indicate 0x%x lsuf 0x%02x%02x fsuf 0x%02x%02x err 0x%x noind 0x%x ref 0x%x\n", |
3202a7cd KS |
198 | ind, |
199 | *ls, *(ls+1), *fs, *(fs+1), | |
a50e2bc0 | 200 | error, /*so->so_pgrp,*/ |
3202a7cd KS |
201 | tpcb->tp_no_disc_indications, |
202 | tpcb->tp_lref); | |
203 | ENDDEBUG | |
204 | ||
205 | so->so_error = error; | |
206 | ||
207 | if (ind == T_DISCONNECT) { | |
208 | if ( tpcb->tp_no_disc_indications ) | |
209 | return; | |
210 | } | |
211 | IFTRACE(D_INDICATION) | |
212 | tptraceTPCB(TPPTmisc, "doing sohasoutofband(so)", so,0,0,0); | |
213 | ENDTRACE | |
214 | sohasoutofband(so); | |
215 | } | |
216 | ||
217 | /* | |
218 | * NAME : tp_getoptions() | |
219 | * | |
220 | * CALLED FROM: | |
221 | * tp.trans whenever we go into OPEN state | |
222 | * | |
223 | * FUNCTION and ARGUMENTS: | |
224 | * sets the proper flags and values in the tpcb, to control | |
225 | * the appropriate actions for the given class, options, | |
226 | * sequence space, etc, etc. | |
227 | * | |
228 | * RETURNS: Nada | |
229 | * | |
230 | * SIDE EFFECTS: | |
231 | * | |
232 | * NOTES: | |
233 | */ | |
234 | void | |
235 | tp_getoptions(tpcb) | |
236 | struct tp_pcb *tpcb; | |
237 | { | |
238 | tpcb->tp_seqmask = | |
239 | tpcb->tp_xtd_format ? TP_XTD_FMT_MASK : TP_NML_FMT_MASK ; | |
240 | tpcb->tp_seqbit = | |
241 | tpcb->tp_xtd_format ? TP_XTD_FMT_BIT : TP_NML_FMT_BIT ; | |
242 | tpcb->tp_seqhalf = tpcb->tp_seqbit >> 1; | |
243 | tpcb->tp_dt_ticks = | |
244 | MAX(tpcb->tp_dt_ticks, (tpcb->tp_peer_acktime + 2)); | |
245 | ||
246 | } | |
247 | ||
248 | /* | |
249 | * NAME: tp_recycle_tsuffix() | |
250 | * | |
251 | * CALLED FROM: | |
252 | * Called when a ref is frozen. | |
253 | * | |
254 | * FUNCTION and ARGUMENTS: | |
255 | * allows the suffix to be reused. | |
256 | * | |
257 | * RETURNS: zilch | |
258 | * | |
259 | * SIDE EFFECTS: | |
260 | * | |
261 | * NOTES: | |
262 | */ | |
263 | void | |
264 | tp_recycle_tsuffix(tpcb) | |
265 | struct tp_pcb *tpcb; | |
266 | { | |
a50e2bc0 KS |
267 | bzero((caddr_t)tpcb->tp_lsuffix, sizeof( tpcb->tp_lsuffix)); |
268 | bzero((caddr_t)tpcb->tp_fsuffix, sizeof( tpcb->tp_fsuffix)); | |
3202a7cd KS |
269 | tpcb->tp_fsuffixlen = tpcb->tp_lsuffixlen = 0; |
270 | ||
271 | (tpcb->tp_nlproto->nlp_recycle_suffix)(tpcb->tp_npcb); | |
272 | } | |
273 | ||
274 | /* | |
275 | * NAME: tp_quench() | |
276 | * | |
277 | * CALLED FROM: | |
278 | * tp{af}_quench() when ICMP source quench or similar thing arrives. | |
279 | * | |
280 | * FUNCTION and ARGUMENTS: | |
281 | * Drop the congestion window back to 1. | |
282 | * Congestion window scheme: | |
283 | * Initial value is 1. ("slow start" as Nagle, et. al. call it) | |
284 | * For each good ack that arrives, the congestion window is increased | |
285 | * by 1 (up to max size of logical infinity, which is to say, | |
286 | * it doesn't wrap around). | |
287 | * Source quench causes it to drop back to 1. | |
288 | * tp_send() uses the smaller of (regular window, congestion window). | |
289 | * One retransmission strategy option is to have any retransmission | |
290 | * cause reset the congestion window back to 1. | |
291 | * | |
292 | * (cmd) is either PRC_QUENCH: source quench, or | |
293 | * PRC_QUENCH2: dest. quench (dec bit) | |
294 | * | |
295 | * RETURNS: | |
296 | * | |
297 | * SIDE EFFECTS: | |
298 | * | |
299 | * NOTES: | |
300 | */ | |
301 | void | |
302 | tp_quench( tpcb, cmd ) | |
303 | struct tp_pcb *tpcb; | |
304 | int cmd; | |
305 | { | |
306 | IFDEBUG(D_QUENCH) | |
307 | printf("tp_quench tpcb 0x%x ref 0x%x sufx 0x%x\n", | |
9aed0596 | 308 | tpcb, tpcb->tp_lref, *(u_short *)(tpcb->tp_lsuffix)); |
3202a7cd KS |
309 | printf("cong_win 0x%x decbit 0x%x \n", |
310 | tpcb->tp_cong_win, tpcb->tp_decbit); | |
311 | ENDDEBUG | |
312 | switch(cmd) { | |
313 | case PRC_QUENCH: | |
314 | tpcb->tp_cong_win = 1; | |
315 | IncStat(ts_quench); | |
316 | break; | |
317 | case PRC_QUENCH2: | |
318 | tpcb->tp_cong_win = 1; /* might as well quench source also */ | |
319 | tpcb->tp_decbit = TP_DECBIT_CLEAR_COUNT; | |
320 | IncStat(ts_rcvdecbit); | |
321 | break; | |
322 | } | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
327 | * NAME: tp_netcmd() | |
328 | * | |
329 | * CALLED FROM: | |
330 | * | |
331 | * FUNCTION and ARGUMENTS: | |
332 | * | |
333 | * RETURNS: | |
334 | * | |
335 | * SIDE EFFECTS: | |
336 | * | |
337 | * NOTES: | |
338 | */ | |
339 | tp_netcmd( tpcb, cmd ) | |
340 | struct tp_pcb *tpcb; | |
341 | int cmd; | |
342 | { | |
343 | #if NARGOXTWENTYFIVE > 0 | |
344 | switch (cmd) { | |
345 | ||
346 | case CONN_CLOSE: | |
347 | case CONN_REFUSE: | |
348 | cons_netcmd( cmd, tpcb->tp_npcb, 0, tpcb->tp_class == TP_CLASS_4); | |
349 | /* TODO: can this last param be replaced by | |
350 | * tpcb->tp_netserv != ISO_CONS?) | |
351 | */ | |
352 | break; | |
353 | ||
354 | default: | |
355 | printf("tp_netcmd(0x%x, 0x%x) NOT IMPLEMENTED\n", tpcb, cmd); | |
356 | break; | |
357 | } | |
358 | #else NARGOXTWENTYFIVE | |
359 | printf("tp_netcmd(): X25 NOT CONFIGURED!!\n"); | |
360 | #endif NARGOXTWENTYFIVE > 0 | |
361 | } | |
362 | /* | |
363 | * CALLED FROM: | |
364 | * tp_ctloutput() and tp_emit() | |
365 | * FUNCTION and ARGUMENTS: | |
366 | * Convert a class mask to the highest numeric value it represents. | |
367 | */ | |
368 | ||
369 | int | |
370 | tp_mask_to_num(x) | |
371 | u_char x; | |
372 | { | |
373 | register int j; | |
374 | ||
375 | for(j = 4; j>=0 ;j--) { | |
376 | if(x & (1<<j)) | |
377 | break; | |
378 | } | |
379 | ASSERT( (j == 4) || (j == 0) ); /* for now */ | |
380 | if( (j != 4) && (j != 0) ) { | |
381 | printf("ASSERTION ERROR: tp_mask_to_num: x 0x%x j %d\n", | |
382 | x, j); | |
383 | } | |
384 | IFTRACE(D_TPINPUT) | |
385 | tptrace(TPPTmisc, "tp_mask_to_num(x) returns j", x, j, 0, 0); | |
386 | ENDTRACE | |
387 | IFDEBUG(D_TPINPUT) | |
388 | printf("tp_mask_to_num(0x%x) returns 0x%x\n", x, j); | |
389 | ENDDEBUG | |
390 | return j; | |
391 | } | |
392 | ||
393 | static | |
394 | copyQOSparms(src, dst) | |
395 | struct tp_conn_param *src, *dst; | |
396 | { | |
397 | /* copy all but the bits stuff at the end */ | |
398 | #define COPYSIZE (12 * sizeof(short)) | |
399 | ||
a50e2bc0 | 400 | bcopy((caddr_t)src, (caddr_t)dst, COPYSIZE); |
3202a7cd KS |
401 | dst->p_tpdusize = src->p_tpdusize; |
402 | dst->p_ack_strat = src->p_ack_strat; | |
403 | dst->p_rx_strat = src->p_rx_strat; | |
404 | #undef COPYSIZE | |
405 | } | |
406 | ||
407 | /* | |
408 | * CALLED FROM: | |
409 | * tp_usrreq on PRU_CONNECT and tp_input on receipt of CR | |
410 | * | |
411 | * FUNCTION and ARGUMENTS: | |
412 | * route directly to x.25 if the address is type 37 - GROT. | |
413 | * furthermore, let TP0 handle only type-37 addresses | |
414 | * | |
415 | * Since this assumes that its address argument is in a mbuf, the | |
416 | * parameter was changed to reflect this assumtion. This also | |
417 | * implies that an mbuf must be allocated when this is | |
418 | * called from tp_input | |
419 | * | |
420 | * RETURNS: | |
421 | * errno value : | |
422 | * EAFNOSUPPORT if can't find an nl_protosw for x.25 (really could panic) | |
423 | * ECONNREFUSED if trying to run TP0 with non-type 37 address | |
424 | * possibly other E* returned from cons_netcmd() | |
425 | * NOTE: | |
426 | * Would like to eliminate as much of this as possible -- | |
427 | * only one set of defaults (let the user set the parms according | |
428 | * to parameters provided in the directory service). | |
429 | * Left here for now 'cause we don't yet have a clean way to handle | |
430 | * it on the passive end. | |
431 | */ | |
432 | int | |
433 | tp_route_to( m, tpcb, channel) | |
434 | struct mbuf *m; | |
435 | register struct tp_pcb *tpcb; | |
436 | u_int channel; | |
437 | { | |
438 | register struct sockaddr_iso *siso; /* NOTE: this may be a sockaddr_in */ | |
439 | extern struct tp_conn_param tp_conn_param[]; | |
440 | int error = 0; | |
441 | int vc_to_kill = 0; /* kludge */ | |
442 | ||
443 | siso = mtod(m, struct sockaddr_iso *); | |
444 | IFTRACE(D_CONN) | |
445 | tptraceTPCB(TPPTmisc, | |
446 | "route_to: so afi netservice class", | |
a50e2bc0 | 447 | tpcb->tp_sock, siso->siso_addr.isoa_genaddr[0], tpcb->tp_netservice, |
3202a7cd KS |
448 | tpcb->tp_class); |
449 | ENDTRACE | |
450 | IFDEBUG(D_CONN) | |
451 | printf("tp_route_to( m x%x, channel 0x%x, tpcb 0x%x netserv 0x%x)\n", | |
452 | m, channel, tpcb, tpcb->tp_netservice); | |
453 | printf("m->mlen x%x, m->m_data:\n", m->m_len); | |
454 | dump_buf(mtod(m, caddr_t), m->m_len); | |
455 | ENDDEBUG | |
456 | if( siso->siso_family != tpcb->tp_domain ) { | |
457 | error = EAFNOSUPPORT; | |
458 | goto done; | |
459 | } | |
a50e2bc0 KS |
460 | IFDEBUG(D_CONN) |
461 | printf("tp_route_to calling nlp_pcbconn, netserv %d\n", | |
462 | tpcb->tp_netservice); | |
463 | ENDDEBUG | |
464 | error = (tpcb->tp_nlproto->nlp_pcbconn)(tpcb->tp_sock->so_pcb, m); | |
465 | if( error ) | |
466 | goto done; | |
467 | ||
3202a7cd KS |
468 | { |
469 | register int save_netservice = tpcb->tp_netservice; | |
470 | ||
471 | switch(tpcb->tp_netservice) { | |
472 | case ISO_COSNS: | |
473 | case ISO_CLNS: | |
474 | /* This is a kludge but seems necessary so the passive end | |
475 | * can get long enough timers. sigh. | |
a50e2bc0 | 476 | if( siso->siso_addr.osinet_idi[1] == (u_char)IDI_OSINET ) |
3202a7cd | 477 | */ |
44f52ea5 | 478 | #define IDI_OSINET 0x0004 /* bcd of "0004" */ |
a50e2bc0 | 479 | if( siso->siso_addr.isoa_genaddr[2] == (char)IDI_OSINET ) { |
3202a7cd KS |
480 | if( tpcb->tp_dont_change_params == 0) { |
481 | copyQOSparms( &tp_conn_param[ISO_COSNS], | |
482 | &tpcb->_tp_param); | |
483 | } | |
484 | tpcb->tp_flags |= TPF_NLQOS_PDN; | |
485 | } | |
486 | /* drop through to IN_CLNS*/ | |
487 | case IN_CLNS: | |
a50e2bc0 KS |
488 | if (iso_localifa(siso)) |
489 | tpcb->tp_flags |= TPF_PEER_ON_SAMENET; | |
3202a7cd KS |
490 | if( (tpcb->tp_class & TP_CLASS_4)==0 ) { |
491 | error = EPROTOTYPE; | |
492 | break; | |
493 | } | |
494 | tpcb->tp_class = TP_CLASS_4; /* IGNORE dont_change_parms */ | |
495 | break; | |
496 | ||
497 | case ISO_CONS: | |
498 | #if NARGOXTWENTYFIVE > 0 | |
499 | tpcb->tp_flags |= TPF_NLQOS_PDN; | |
500 | if( tpcb->tp_dont_change_params == 0 ) { | |
501 | copyQOSparms( &tp_conn_param[ISO_CONS], | |
502 | &tpcb->_tp_param); | |
503 | } | |
504 | /* | |
505 | * for use over x.25 really need a small receive window, | |
506 | * need to start slowly, need small max negotiable tpdu size, | |
507 | * and need to use the congestion window to the max | |
508 | * IGNORES tp_dont_change_params for these! | |
509 | */ | |
510 | if( tpcb->tp_sock->so_snd.sb_hiwat > 512 ) { | |
511 | (void) soreserve(tpcb->tp_sock, 512, 512 );/* GAG */ | |
512 | } | |
513 | tpcb->tp_rx_strat = TPRX_USE_CW; | |
514 | ||
515 | if( (tpcb->tp_nlproto != &nl_protosw[ISO_CONS]) ) { | |
516 | /* if the listener was restricting us to clns, | |
517 | * ( we never get here if the listener isn't af_iso ) | |
518 | * refuse the connection : | |
519 | * but we don't have a way to restrict thus - it's | |
520 | * utterly permissive. | |
521 | if(channel) { | |
522 | (void) cons_netcmd(CONN_REFUSE, tpcb->tp_npcb, | |
523 | channel, tpcb->tp_class == TP_CLASS_4); | |
524 | error = EPFNOSUPPORT; | |
525 | goto done; | |
526 | } | |
527 | */ | |
528 | IFDEBUG(D_CONN) | |
529 | printf( | |
530 | "tp_route_to( CHANGING nlproto old 0x%x new 0x%x)\n", | |
531 | tpcb->tp_nlproto , &nl_protosw[ISO_CONS]); | |
532 | ENDDEBUG | |
533 | tpcb->tp_nlproto = &nl_protosw[ISO_CONS]; | |
534 | } | |
535 | /* Now we've got the right nl_protosw. | |
536 | * If we already have a channel (we were called from tp_input()) | |
537 | * tell cons that we'll hang onto this channel. | |
538 | * If we don't already have one (we were called from usrreq()) | |
539 | * -and if it's TP0 open a net connection and wait for it to finish. | |
540 | */ | |
541 | if( channel ) { | |
542 | error = cons_netcmd( CONN_CONFIRM, tpcb->tp_npcb, | |
543 | channel, tpcb->tp_class == TP_CLASS_4); | |
544 | vc_to_kill ++; | |
545 | } else if( tpcb->tp_class != TP_CLASS_4 /* class 4 only */) { | |
546 | /* better open vc if any possibility of ending up | |
547 | * in non-multiplexing class | |
548 | */ | |
549 | error = cons_openvc(tpcb->tp_npcb, siso, tpcb->tp_sock); | |
550 | vc_to_kill ++; | |
551 | } | |
552 | /* class 4 doesn't need to open a vc now - may use one already | |
553 | * opened or may open one only when it sends a pkt. | |
554 | */ | |
555 | #else NARGOXTWENTYFIVE > 0 | |
556 | error = ECONNREFUSED; | |
557 | #endif NARGOXTWENTYFIVE > 0 | |
558 | break; | |
559 | default: | |
560 | error = EPROTOTYPE; | |
561 | } | |
562 | ||
563 | ASSERT( save_netservice == tpcb->tp_netservice); | |
564 | } | |
3202a7cd KS |
565 | if( error && vc_to_kill ) { |
566 | tp_netcmd( tpcb, CONN_CLOSE); | |
567 | goto done; | |
568 | } | |
3202a7cd KS |
569 | { /* start with the global rtt, rtv stats */ |
570 | register int i = | |
571 | (int) tpcb->tp_flags & (TPF_PEER_ON_SAMENET | TPF_NLQOS_PDN); | |
572 | ||
573 | tpcb->tp_rtt = tp_stat.ts_rtt[i]; | |
574 | tpcb->tp_rtv = tp_stat.ts_rtv[i]; | |
575 | } | |
576 | done: | |
577 | IFDEBUG(D_CONN) | |
578 | printf("tp_route_to returns 0x%x\n", error); | |
579 | ENDDEBUG | |
580 | IFTRACE(D_CONN) | |
581 | tptraceTPCB(TPPTmisc, "route_to: returns: error netserv class", error, | |
582 | tpcb->tp_netservice, tpcb->tp_class, 0); | |
583 | ENDTRACE | |
584 | return error; | |
585 | } | |
586 | ||
587 | #ifdef TP_PERF_MEAS | |
588 | /* | |
589 | * CALLED FROM: | |
590 | * tp_ctloutput() when the user sets TPOPT_PERF_MEAS on | |
591 | * and tp_newsocket() when a new connection is made from | |
592 | * a listening socket with tp_perf_on == true. | |
593 | * FUNCTION and ARGUMENTS: | |
594 | * (tpcb) is the usual; this procedure gets a clear cluster mbuf for | |
595 | * a tp_pmeas structure, and makes tpcb->tp_p_meas point to it. | |
596 | * RETURN VALUE: | |
597 | * ENOBUFS if it cannot get a cluster mbuf. | |
598 | */ | |
599 | ||
600 | int | |
601 | tp_setup_perf(tpcb) | |
602 | register struct tp_pcb *tpcb; | |
603 | { | |
604 | register struct mbuf *q; | |
605 | ||
a50e2bc0 KS |
606 | if( tpcb->tp_p_meas == 0 ) { |
607 | MGET(q, M_WAITOK, MT_PCB); | |
3202a7cd KS |
608 | if (q == 0) |
609 | return ENOBUFS; | |
a50e2bc0 KS |
610 | MCLGET(q, M_WAITOK); |
611 | if ((q->m_flags & M_EXT) == 0) { | |
612 | (void) m_free(q); | |
3202a7cd | 613 | return ENOBUFS; |
3202a7cd | 614 | } |
a50e2bc0 KS |
615 | q->m_len = sizeof (struct tp_pmeas); |
616 | tpcb->tp_p_mbuf = q; | |
617 | tpcb->tp_p_meas = mtod(q, struct tp_pmeas *); | |
618 | bzero( (caddr_t)tpcb->tp_p_meas, sizeof (struct tp_pmeas) ); | |
619 | IFDEBUG(D_PERF_MEAS) | |
620 | printf( | |
621 | "tpcb 0x%x so 0x%x ref 0x%x tp_p_meas 0x%x tp_perf_on 0x%x\n", | |
622 | tpcb, tpcb->tp_sock, tpcb->tp_lref, | |
623 | tpcb->tp_p_meas, tpcb->tp_perf_on); | |
624 | ENDDEBUG | |
625 | tpcb->tp_perf_on = 1; | |
3202a7cd KS |
626 | } |
627 | return 0; | |
628 | } | |
629 | #endif TP_PERF_MEAS | |
630 | ||
631 | #ifdef ARGO_DEBUG | |
632 | dump_addr (addr) | |
633 | register struct sockaddr *addr; | |
634 | { | |
635 | switch( addr->sa_family ) { | |
636 | case AF_INET: | |
a50e2bc0 | 637 | dump_inaddr((struct sockaddr_in *)addr); |
3202a7cd | 638 | break; |
a50e2bc0 | 639 | #ifdef ISO |
3202a7cd | 640 | case AF_ISO: |
a50e2bc0 | 641 | dump_isoaddr((struct sockaddr_iso *)addr); |
3202a7cd | 642 | break; |
a50e2bc0 | 643 | #endif ISO |
3202a7cd KS |
644 | default: |
645 | printf("BAD AF: 0x%x\n", addr->sa_family); | |
646 | break; | |
647 | } | |
648 | } | |
649 | ||
a50e2bc0 KS |
650 | #define MAX_COLUMNS 8 |
651 | /* | |
652 | * Dump the buffer to the screen in a readable format. Format is: | |
653 | * | |
654 | * hex/dec where hex is the hex format, dec is the decimal format. | |
655 | * columns of hex/dec numbers will be printed, followed by the | |
656 | * character representations (if printable). | |
657 | */ | |
658 | Dump_buf(buf, len) | |
659 | caddr_t buf; | |
660 | int len; | |
661 | { | |
662 | int i,j; | |
663 | ||
664 | printf("Dump buf 0x%x len 0x%x\n", buf, len); | |
665 | for (i = 0; i < len; i += MAX_COLUMNS) { | |
666 | printf("+%d:\t", i); | |
667 | for (j = 0; j < MAX_COLUMNS; j++) { | |
668 | if (i + j < len) { | |
669 | printf("%x/%d\t", buf[i+j]&0xff, buf[i+j]); | |
670 | } else { | |
671 | printf(" "); | |
672 | } | |
673 | } | |
674 | ||
675 | for (j = 0; j < MAX_COLUMNS; j++) { | |
676 | if (i + j < len) { | |
677 | if (((buf[i+j]) > 31) && ((buf[i+j]) < 128)) | |
678 | printf("%c", buf[i+j]&0xff); | |
679 | else | |
680 | printf("."); | |
681 | } | |
682 | } | |
683 | printf("\n"); | |
684 | } | |
685 | } | |
686 | ||
687 | ||
3202a7cd KS |
688 | #endif ARGO_DEBUG |
689 |