[unix-history] / sys / netiso / tp_cons.c

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)tp_cons.c	7.8 (Berkeley) 5/9/91
 */

/***********************************************************
		Copyright IBM Corporation 1987

                      All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of IBM not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/

/*
 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
 */
/* 
 * ARGO TP
 * $Header: tp_cons.c,v 5.6 88/11/18 17:27:13 nhall Exp $
 * $Source: /usr/argo/sys/netiso/RCS/tp_cons.c,v $
 *
 * Here is where you find the iso- and cons-dependent code.  We've tried
 * keep all net-level and (primarily) address-family-dependent stuff
 * out of the tp source, and everthing here is reached indirectly
 * through a switch table (struct nl_protosw *) tpcb->tp_nlproto 
 * (see tp_pcb.c). 
 * The routines here are:
 *	tpcons_input: pullup and call tp_input w/ correct arguments
 *	tpcons_output: package a pkt for cons given an isopcb & some data
 *	cons_chan_to_tpcb: find a tpcb based on the channel #
 */

#ifdef ISO
#ifdef TPCONS

#include "param.h"
#include "socket.h"
#include "domain.h"
#include "mbuf.h"
#include "errno.h"
#include "time.h"

#include "../net/if.h"
#include "../net/route.h"

#include "tp_param.h"
#include "argo_debug.h"
#include "tp_stat.h"
#include "tp_pcb.h"
#include "tp_trace.h"
#include "tp_stat.h"
#include "tp_tpdu.h"
#include "iso.h"
#include "iso_errno.h"
#include "iso_pcb.h"
#include "cons.h"
#include "tp_seq.h"

#undef FALSE
#undef TRUE
#include "../netccitt/x25.h"
#include "../netccitt/pk.h"
#include "../netccitt/pk_var.h"

#include "if_cons.c"
int tpcons_output();

/*
 * CALLED FROM:
 *  tp_route_to() for PRU_CONNECT
 * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE:
 *  version of the previous procedure for X.25
 */

tpcons_pcbconnect(isop, nam)
struct isopcb *isop;
register struct mbuf *nam;
{
	int error;
	if (error = iso_pcbconnect(isop, nam))
		return error;
	if ((isop->isop_chan = (caddr_t) pk_attach((struct socket *)0)) == 0) {
		IFDEBUG(D_CCONS)
			printf("tpcons_pcbconnect: no pklcd; returns 0x%x\n", error);
		ENDDEBUG
		return ENOBUFS;
	}
	if (error = cons_connect(isop)) { /* if it doesn't work */
		/* oh, dear, throw packet away */
		pk_disconnect((struct pklcd *)isop->isop_chan);
		isop->isop_chan = 0;
	} else 
		isop->isop_refcnt = 1;
	return error;
}


/*
 * CALLED FROM:
 * 	cons
 * FUNCTION and ARGUMENTS:
 * THIS MAYBE BELONGS IN SOME OTHER PLACE??? but i think not -
 */
ProtoHook
tpcons_ctlinput(cmd, siso, isop)
	int cmd; 
	struct sockaddr_iso *siso;
	struct isopcb *isop;
{
	switch (cmd) {

	case PRC_CONS_SEND_DONE:
		if( isop->isop_socket ) { /* tp 0 only */
			register struct tp_pcb *tpcb = 
				(struct tp_pcb *)isop->isop_socket->so_tpcb;
			struct 	tp_event 		E;
			int 					error = 0;

			if( tpcb->tp_class == TP_CLASS_0 ) {
				/* only if class is exactly class zero, not
				 * still in class negotiation
				 */
				/* fake an ack */
				register SeqNum	seq =  SEQ_ADD(tpcb, tpcb->tp_snduna, 1);

				IFTRACE(D_DATA)
					tptrace(TPPTmisc, "FAKE ACK seq cdt 1", 
						seq, 0,0,0);
				ENDTRACE
				IFDEBUG(D_DATA)
					printf("FAKE ACK seq 0x%x cdt 1\n", seq );
				ENDDEBUG
				E.ATTR(AK_TPDU).e_cdt = 1;
				E.ATTR(AK_TPDU).e_seq = seq;
				E.ATTR(AK_TPDU).e_subseq = 0;
				E.ATTR(AK_TPDU).e_fcc_present = 0;
				error =  DoEvent(AK_TPDU);
				if( error ) {
					tpcb->tp_sock->so_error = error;
				}
			} /* else ignore it */
		} 
		break;
	case PRC_ROUTEDEAD:
		if( isop->isop_socket ) { /* tp 0 only */
			tpiso_reset(isop);
			break;
		} /* else drop through */
	default:
		(void) tpclnp_ctlinput(cmd, siso);
		break;
	}
	return 0;
}

/*
 * CALLED FROM:
 * 	cons's intr routine
 * FUNCTION and ARGUMENTS:
 * Take a packet (m) from cons, pullup m as required by tp,
 *  ignore the socket argument, and call tp_input. 
 * No return value.  
 */
ProtoHook
tpcons_input(m, faddr, laddr, channel)
	struct mbuf 		*m;
	struct sockaddr_iso	*faddr, *laddr;
	caddr_t				channel;
{
	if( m == MNULL)
		return 0;

	m = (struct mbuf *)tp_inputprep(m);

	IFDEBUG(D_TPINPUT)
		printf("tpcons_input before tp_input(m 0x%x)\n", m);
		dump_buf( m, 12+ m->m_len);
	ENDDEBUG
	tp_input(m, faddr, laddr, channel, tpcons_output, 0);
	return 0;
}


/*
 * CALLED FROM:
 *  tp_emit()
 * FUNCTION and ARGUMENTS:
 *  Take a packet(m0) from tp and package it so that cons will accept it.
 *  This means filling in a few of the fields.
 *  inp is the isopcb structure; datalen is the length of the data in the
 *  mbuf string m0.
 * RETURN VALUE:
 *  whatever (E*) is returned form the net layer output routine.
 */

int
tpcons_output(isop, m0, datalen, nochksum)
	struct isopcb		*isop;
	struct mbuf 		*m0;
	int 				datalen;
	int					nochksum;
{
	register	struct mbuf *m = m0;
	int					error;

	IFDEBUG(D_EMIT)
		printf(
		"tpcons_output(isop 0x%x, m 0x%x, len 0x%x socket 0x%x\n",
			isop, m0, datalen, isop->isop_socket);
	ENDDEBUG
	if (m == MNULL)
		return 0;
	if ((m->m_flags & M_PKTHDR) == 0) {
		MGETHDR(m, M_DONTWAIT, MT_DATA);
		if (m == 0)
			return ENOBUFS;
		m->m_next = m0;
	}
	m->m_pkthdr.len = datalen;
	error = pk_send(isop->isop_chan, m);
	IncStat(ts_tpdu_sent);

	return error;
}
/*
 * CALLED FROM:
 *  tp_error_emit()
 * FUNCTION and ARGUMENTS:
 *  Take a packet(m0) from tp and package it so that cons will accept it.
 *  chan is the cons channel to use; datalen is the length of the data in the
 *  mbuf string m0.
 * RETURN VALUE:
 *  whatever (E*) is returned form the net layer output routine.
 */

int
tpcons_dg_output(chan, m0, datalen)
	caddr_t				chan;
	struct mbuf 		*m0;
	int 				datalen;
{
	return tpcons_output(((struct pklcd *)chan)->lcd_upnext, m0, datalen, 0);
}
#endif TPCONS
#endif ISO
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1991 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)tp_cons.c 7.8 (Berkeley) 5/9/91
	34	*/
	35
	36	/***********************************************************
	37	Copyright IBM Corporation 1987
	38
	39	All Rights Reserved
	40
	41	Permission to use, copy, modify, and distribute this software and its
	42	documentation for any purpose and without fee is hereby granted,
	43	provided that the above copyright notice appear in all copies and that
	44	both that copyright notice and this permission notice appear in
	45	supporting documentation, and that the name of IBM not be
	46	used in advertising or publicity pertaining to distribution of the
	47	software without specific, written prior permission.
	48
	49	IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
	50	ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
	51	IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
	52	ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	53	WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
	54	ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
	55	SOFTWARE.
	56
	57	******************************************************************/
	58
	59	/*
	60	* ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
	61	*/
	62	/*
	63	* ARGO TP
	64	* $Header: tp_cons.c,v 5.6 88/11/18 17:27:13 nhall Exp $
65	* $Source: /usr/argo/sys/netiso/RCS/tp_cons.c,v $
66	*
67	* Here is where you find the iso- and cons-dependent code. We've tried
68	* keep all net-level and (primarily) address-family-dependent stuff
69	* out of the tp source, and everthing here is reached indirectly
70	* through a switch table (struct nl_protosw *) tpcb->tp_nlproto
71	* (see tp_pcb.c).
72	* The routines here are:
73	* tpcons_input: pullup and call tp_input w/ correct arguments
74	* tpcons_output: package a pkt for cons given an isopcb & some data
75	* cons_chan_to_tpcb: find a tpcb based on the channel #
76	*/
77
78	#ifdef ISO
79	#ifdef TPCONS
80
81	#include "param.h"
82	#include "socket.h"
83	#include "domain.h"
84	#include "mbuf.h"
85	#include "errno.h"
86	#include "time.h"
87
88	#include "../net/if.h"
89	#include "../net/route.h"
90
91	#include "tp_param.h"
92	#include "argo_debug.h"
93	#include "tp_stat.h"
94	#include "tp_pcb.h"
95	#include "tp_trace.h"
96	#include "tp_stat.h"
97	#include "tp_tpdu.h"
98	#include "iso.h"
99	#include "iso_errno.h"
100	#include "iso_pcb.h"
101	#include "cons.h"
102	#include "tp_seq.h"
103
104	#undef FALSE
105	#undef TRUE
106	#include "../netccitt/x25.h"
107	#include "../netccitt/pk.h"
108	#include "../netccitt/pk_var.h"
109
110	#include "if_cons.c"
111	int tpcons_output();
112
113	/*
114	* CALLED FROM:
115	* tp_route_to() for PRU_CONNECT
116	* FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE:
117	* version of the previous procedure for X.25
118	*/
119
120	tpcons_pcbconnect(isop, nam)
121	struct isopcb *isop;
122	register struct mbuf *nam;
123	{
124	int error;
125	if (error = iso_pcbconnect(isop, nam))
126	return error;
127	if ((isop->isop_chan = (caddr_t) pk_attach((struct socket *)0)) == 0) {
128	IFDEBUG(D_CCONS)
129	printf("tpcons_pcbconnect: no pklcd; returns 0x%x\n", error);
130	ENDDEBUG
131	return ENOBUFS;
132	}
133	if (error = cons_connect(isop)) { /* if it doesn't work */
134	/* oh, dear, throw packet away */
135	pk_disconnect((struct pklcd *)isop->isop_chan);
136	isop->isop_chan = 0;
137	} else
138	isop->isop_refcnt = 1;
139	return error;
140	}
141
142
143	/*
144	* CALLED FROM:
145	* cons
146	* FUNCTION and ARGUMENTS:
147	* THIS MAYBE BELONGS IN SOME OTHER PLACE??? but i think not -
148	*/
149	ProtoHook
150	tpcons_ctlinput(cmd, siso, isop)
151	int cmd;
152	struct sockaddr_iso *siso;
153	struct isopcb *isop;
154	{
155	switch (cmd) {
156
157	case PRC_CONS_SEND_DONE:
158	if( isop->isop_socket ) { /* tp 0 only */
159	register struct tp_pcb *tpcb =
160	(struct tp_pcb *)isop->isop_socket->so_tpcb;
161	struct tp_event E;
162	int error = 0;
163
164	if( tpcb->tp_class == TP_CLASS_0 ) {
165	/* only if class is exactly class zero, not
166	* still in class negotiation
167	*/
168	/* fake an ack */
169	register SeqNum seq = SEQ_ADD(tpcb, tpcb->tp_snduna, 1);
170
171	IFTRACE(D_DATA)
172	tptrace(TPPTmisc, "FAKE ACK seq cdt 1",
173	seq, 0,0,0);
174	ENDTRACE
175	IFDEBUG(D_DATA)
176	printf("FAKE ACK seq 0x%x cdt 1\n", seq );
177	ENDDEBUG
178	E.ATTR(AK_TPDU).e_cdt = 1;
179	E.ATTR(AK_TPDU).e_seq = seq;
180	E.ATTR(AK_TPDU).e_subseq = 0;
181	E.ATTR(AK_TPDU).e_fcc_present = 0;
182	error = DoEvent(AK_TPDU);
183	if( error ) {
184	tpcb->tp_sock->so_error = error;
185	}
186	} /* else ignore it */
187	}
188	break;
189	case PRC_ROUTEDEAD:
190	if( isop->isop_socket ) { /* tp 0 only */
191	tpiso_reset(isop);
192	break;
193	} /* else drop through */
194	default:
195	(void) tpclnp_ctlinput(cmd, siso);
196	break;
197	}
198	return 0;
199	}
200
201	/*
202	* CALLED FROM:
203	* cons's intr routine
204	* FUNCTION and ARGUMENTS:
205	* Take a packet (m) from cons, pullup m as required by tp,
206	* ignore the socket argument, and call tp_input.
207	* No return value.
208	*/
209	ProtoHook
210	tpcons_input(m, faddr, laddr, channel)
211	struct mbuf *m;
212	struct sockaddr_iso faddr, laddr;
213	caddr_t channel;
214	{
215	if( m == MNULL)
216	return 0;
217
218	m = (struct mbuf *)tp_inputprep(m);
219
220	IFDEBUG(D_TPINPUT)
221	printf("tpcons_input before tp_input(m 0x%x)\n", m);
222	dump_buf( m, 12+ m->m_len);
223	ENDDEBUG
224	tp_input(m, faddr, laddr, channel, tpcons_output, 0);
225	return 0;
226	}
227
228
229	/*
230	* CALLED FROM:
231	* tp_emit()
232	* FUNCTION and ARGUMENTS:
233	* Take a packet(m0) from tp and package it so that cons will accept it.
234	* This means filling in a few of the fields.
235	* inp is the isopcb structure; datalen is the length of the data in the
236	* mbuf string m0.
237	* RETURN VALUE:
238	* whatever (E*) is returned form the net layer output routine.
239	*/
240
241	int
242	tpcons_output(isop, m0, datalen, nochksum)
243	struct isopcb *isop;
244	struct mbuf *m0;
245	int datalen;
246	int nochksum;
247	{
248	register struct mbuf *m = m0;
249	int error;
250
251	IFDEBUG(D_EMIT)
252	printf(
253	"tpcons_output(isop 0x%x, m 0x%x, len 0x%x socket 0x%x\n",
254	isop, m0, datalen, isop->isop_socket);
255	ENDDEBUG
256	if (m == MNULL)
257	return 0;
258	if ((m->m_flags & M_PKTHDR) == 0) {
259	MGETHDR(m, M_DONTWAIT, MT_DATA);
260	if (m == 0)
261	return ENOBUFS;
262	m->m_next = m0;
263	}
264	m->m_pkthdr.len = datalen;
265	error = pk_send(isop->isop_chan, m);
266	IncStat(ts_tpdu_sent);
267
268	return error;
269	}
270	/*
271	* CALLED FROM:
272	* tp_error_emit()
273	* FUNCTION and ARGUMENTS:
274	* Take a packet(m0) from tp and package it so that cons will accept it.
275	* chan is the cons channel to use; datalen is the length of the data in the
276	* mbuf string m0.
277	* RETURN VALUE:
278	* whatever (E*) is returned form the net layer output routine.
279	*/
280
281	int
282	tpcons_dg_output(chan, m0, datalen)
283	caddr_t chan;
284	struct mbuf *m0;
285	int datalen;
286	{
287	return tpcons_output(((struct pklcd *)chan)->lcd_upnext, m0, datalen, 0);
288	}
289	#endif TPCONS
290	#endif ISO