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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /*-
26: * Copyright (c) 1991, 1993
27: * The Regents of the University of California. All rights reserved.
28: *
29: * Redistribution and use in source and binary forms, with or without
30: * modification, are permitted provided that the following conditions
31: * are met:
32: * 1. Redistributions of source code must retain the above copyright
33: * notice, this list of conditions and the following disclaimer.
34: * 2. Redistributions in binary form must reproduce the above copyright
35: * notice, this list of conditions and the following disclaimer in the
36: * documentation and/or other materials provided with the distribution.
37: * 3. All advertising materials mentioning features or use of this software
38: * must display the following acknowledgement:
39: * This product includes software developed by the University of
40: * California, Berkeley and its contributors.
41: * 4. Neither the name of the University nor the names of its contributors
42: * may be used to endorse or promote products derived from this software
43: * without specific prior written permission.
44: *
45: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
46: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
49: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55: * SUCH DAMAGE.
56: *
57: * @(#)tp_cons.c 8.1 (Berkeley) 6/10/93
58: */
59:
60: /***********************************************************
61: Copyright IBM Corporation 1987
62:
63: All Rights Reserved
64:
65: Permission to use, copy, modify, and distribute this software and its
66: documentation for any purpose and without fee is hereby granted,
67: provided that the above copyright notice appear in all copies and that
68: both that copyright notice and this permission notice appear in
69: supporting documentation, and that the name of IBM not be
70: used in advertising or publicity pertaining to distribution of the
71: software without specific, written prior permission.
72:
73: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
74: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
75: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
76: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
77: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
78: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
79: SOFTWARE.
80:
81: ******************************************************************/
82:
83: /*
84: * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
85: */
86: /*
87: * ARGO TP
88: *
89: * Here is where you find the iso- and cons-dependent code. We've tried
90: * keep all net-level and (primarily) address-family-dependent stuff
91: * out of the tp source, and everthing here is reached indirectly
92: * through a switch table (struct nl_protosw *) tpcb->tp_nlproto
93: * (see tp_pcb.c).
94: * The routines here are:
95: * tpcons_input: pullup and call tp_input w/ correct arguments
96: * tpcons_output: package a pkt for cons given an isopcb & some data
97: * cons_chan_to_tpcb: find a tpcb based on the channel #
98: */
99:
100: #if ISO
101: #if TPCONS
102:
103: #include <sys/param.h>
104: #include <sys/socket.h>
105: #include <sys/domain.h>
106: #include <sys/mbuf.h>
107: #include <sys/errno.h>
108: #include <sys/time.h>
109:
110: #include <net/if.h>
111: #include <net/route.h>
112:
113: #include <netiso/tp_param.h>
114: #include <netiso/argo_debug.h>
115: #include <netiso/tp_stat.h>
116: #include <netiso/tp_pcb.h>
117: #include <netiso/tp_trace.h>
118: #include <netiso/tp_stat.h>
119: #include <netiso/tp_tpdu.h>
120: #include <netiso/iso.h>
121: #include <netiso/iso_errno.h>
122: #include <netiso/iso_pcb.h>
123: #include <netiso/cons.h>
124: #include <netiso/tp_seq.h>
125:
126: #undef FALSE
127: #undef TRUE
128: #include <netccitt/x25.h>
129: #include <netccitt/pk.h>
130: #include <netccitt/pk_var.h>
131:
132: #include <netiso/if_cons.c>
133: int tpcons_output();
134:
135: /*
136: * CALLED FROM:
137: * tp_route_to() for PRU_CONNECT
138: * FUNCTION, ARGUMENTS, SIDE EFFECTS and RETURN VALUE:
139: * version of the previous procedure for X.25
140: */
141:
142: tpcons_pcbconnect(isop, nam)
143: struct isopcb *isop;
144: register struct mbuf *nam;
145: {
146: int error;
147: if (error = iso_pcbconnect(isop, nam))
148: return error;
149: if ((isop->isop_chan = (caddr_t) pk_attach((struct socket *)0)) == 0) {
150: IFDEBUG(D_CCONS)
151: printf("tpcons_pcbconnect: no pklcd; returns 0x%x\n", error);
152: ENDDEBUG
153: return ENOBUFS;
154: }
155: if (error = cons_connect(isop)) { /* if it doesn't work */
156: /* oh, dear, throw packet away */
157: pk_disconnect((struct pklcd *)isop->isop_chan);
158: isop->isop_chan = 0;
159: } else
160: isop->isop_refcnt = 1;
161: return error;
162: }
163:
164:
165: /*
166: * CALLED FROM:
167: * cons
168: * FUNCTION and ARGUMENTS:
169: * THIS MAYBE BELONGS IN SOME OTHER PLACE??? but i think not -
170: */
171: ProtoHook
172: tpcons_ctlinput(cmd, siso, isop)
173: int cmd;
174: struct sockaddr_iso *siso;
175: struct isopcb *isop;
176: {
177: register struct tp_pcb *tpcb = 0;
178:
179: if (isop->isop_socket)
180: tpcb = (struct tp_pcb *)isop->isop_socket->so_pcb;
181: switch (cmd) {
182:
183: case PRC_CONS_SEND_DONE:
184: if (tpcb) {
185: struct tp_event E;
186: int error = 0;
187:
188: if (tpcb->tp_class == TP_CLASS_0) {
189: /* only if class is exactly class zero, not
190: * still in class negotiation
191: */
192: /* fake an ack */
193: register SeqNum seq = SEQ_ADD(tpcb, tpcb->tp_snduna, 1);
194:
195: IFTRACE(D_DATA)
196: tptrace(TPPTmisc, "FAKE ACK seq cdt 1",
197: seq, 0,0,0);
198: ENDTRACE
199: IFDEBUG(D_DATA)
200: printf("FAKE ACK seq 0x%x cdt 1\n", seq );
201: ENDDEBUG
202: E.ATTR(AK_TPDU).e_cdt = 1;
203: E.ATTR(AK_TPDU).e_seq = seq;
204: E.ATTR(AK_TPDU).e_subseq = 0;
205: E.ATTR(AK_TPDU).e_fcc_present = 0;
206: error = DoEvent(AK_TPDU);
207: if( error ) {
208: tpcb->tp_sock->so_error = error;
209: }
210: } /* else ignore it */
211: }
212: break;
213: case PRC_ROUTEDEAD:
214: if (tpcb && tpcb->tp_class == TP_CLASS_0) {
215: tpiso_reset(isop);
216: break;
217: } /* else drop through */
218: default:
219: (void) tpclnp_ctlinput(cmd, siso);
220: break;
221: }
222: return 0;
223: }
224:
225: /*
226: * CALLED FROM:
227: * cons's intr routine
228: * FUNCTION and ARGUMENTS:
229: * Take a packet (m) from cons, pullup m as required by tp,
230: * ignore the socket argument, and call tp_input.
231: * No return value.
232: */
233: ProtoHook
234: tpcons_input(m, faddr, laddr, channel)
235: struct mbuf *m;
236: struct sockaddr_iso *faddr, *laddr;
237: caddr_t channel;
238: {
239: if( m == MNULL)
240: return 0;
241:
242: m = (struct mbuf *)tp_inputprep(m);
243:
244: IFDEBUG(D_TPINPUT)
245: printf("tpcons_input before tp_input(m 0x%x)\n", m);
246: dump_buf( m, 12+ m->m_len);
247: ENDDEBUG
248: tp_input(m, faddr, laddr, channel, tpcons_output, 0);
249: return 0;
250: }
251:
252:
253: /*
254: * CALLED FROM:
255: * tp_emit()
256: * FUNCTION and ARGUMENTS:
257: * Take a packet(m0) from tp and package it so that cons will accept it.
258: * This means filling in a few of the fields.
259: * inp is the isopcb structure; datalen is the length of the data in the
260: * mbuf string m0.
261: * RETURN VALUE:
262: * whatever (E*) is returned form the net layer output routine.
263: */
264:
265: int
266: tpcons_output(isop, m0, datalen, nochksum)
267: struct isopcb *isop;
268: struct mbuf *m0;
269: int datalen;
270: int nochksum;
271: {
272: register struct mbuf *m = m0;
273: int error;
274:
275: IFDEBUG(D_EMIT)
276: printf(
277: "tpcons_output(isop 0x%x, m 0x%x, len 0x%x socket 0x%x\n",
278: isop, m0, datalen, isop->isop_socket);
279: ENDDEBUG
280: if (m == MNULL)
281: return 0;
282: if ((m->m_flags & M_PKTHDR) == 0) {
283: MGETHDR(m, M_DONTWAIT, MT_DATA);
284: if (m == 0)
285: return ENOBUFS;
286: m->m_next = m0;
287: }
288: m->m_pkthdr.len = datalen;
289: if (isop->isop_chan == 0) {
290: /* got a restart maybe? */
291: if ((isop->isop_chan = (caddr_t) pk_attach((struct socket *)0)) == 0) {
292: IFDEBUG(D_CCONS)
293: printf("tpcons_output: no pklcd\n");
294: ENDDEBUG
295: error = ENOBUFS;
296: }
297: if (error = cons_connect(isop)) {
298: pk_disconnect((struct pklcd *)isop->isop_chan);
299: isop->isop_chan = 0;
300: IFDEBUG(D_CCONS)
301: printf("tpcons_output: can't reconnect\n");
302: ENDDEBUG
303: }
304: } else {
305: error = pk_send(isop->isop_chan, m);
306: IncStat(ts_tpdu_sent);
307: }
308: return error;
309: }
310: /*
311: * CALLED FROM:
312: * tp_error_emit()
313: * FUNCTION and ARGUMENTS:
314: * Take a packet(m0) from tp and package it so that cons will accept it.
315: * chan is the cons channel to use; datalen is the length of the data in the
316: * mbuf string m0.
317: * RETURN VALUE:
318: * whatever (E*) is returned form the net layer output routine.
319: */
320:
321: int
322: tpcons_dg_output(chan, m0, datalen)
323: caddr_t chan;
324: struct mbuf *m0;
325: int datalen;
326: {
327: return tpcons_output(((struct pklcd *)chan)->lcd_upnext, m0, datalen, 0);
328: }
329: #endif /* TPCONS */
330: #endif /* ISO */
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