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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * Copyright (c) 1990, 1996-1998 Apple Computer, Inc.
24: * All Rights Reserved.
25: */
26:
27: /* dspInit.c
28: *
29: * From Mike Shoemaker v01.20 06/29/90 mbs
30: * Modified for MP, 1996 by Tuyen Nguyen
31: * Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
32: */
33: #include <sys/errno.h>
34: #include <sys/types.h>
35: #include <sys/param.h>
36: #include <machine/spl.h>
37: #include <sys/systm.h>
38: #include <sys/kernel.h>
39: #include <sys/proc.h>
40: #include <sys/filedesc.h>
41: #include <sys/fcntl.h>
42: #include <sys/mbuf.h>
43: #include <sys/socket.h>
44: #include <sys/time.h>
45:
46: #include <netat/sysglue.h>
47: #include <netat/appletalk.h>
48: #include <netat/at_pcb.h>
49: #include <netat/debug.h>
50: #include <netat/adsp.h>
51: #include <netat/adsp_internal.h>
52:
53: extern atlock_t adspgen_lock;
54:
55: /*
56: * InitContinue
57: *
58: * Handle 2nd half of code for dsp init. We could be called directly by
59: * the dsp Init routine, or if a socket has to be opened, we get called
60: * by the completion routine of the dsp open socket.
61: *
62: * INPUTS:
63: * sp The stream we're initing (not yet on list of streams)
64: * pb The user's dsp Init param block
65: * soc The socket we're going to use
66: * OUTPUTS:
67: * none
68: */
69: static void InitContinue(sp, pb) /* (CCBPtr sp, DSPPBPtr pb, int soc) */
70: CCBPtr sp;
71: struct adspcmd *pb;
72: {
73: int s;
74:
75: /* Save connection's socket # in CCB */
76: sp->localSocket = pb->socket;
77:
78: /*
79: * Link the new ccb onto queue. Must be done with interrupts off.
80: */
81: ATDISABLE(s, adspgen_lock);
82: qAddToEnd(AT_ADSP_STREAMS, sp); /* Put on linked list of connections */
83: ATENABLE(s, adspgen_lock);
84: return;
85: }
86:
87: /*
88: * dspInit
89: *
90: * Create and initialize a connection end. return ccbRefNum so that client can
91: * reference this ccb in later calls. The caller provides a pointer to
92: * ccb which belongs to adsp until the connection end is removed.
93: *
94: * If we have to open a socket, we'll have to do an async open socket, and
95: * finish up in the completion routine
96: *
97: * INPUTS:
98: * --> ccbPtr Pointer to connection control block
99: * --> adspcmdPtr Pointer to user request block
100: *
101: * OUTPUTS:
102: * <-- ccbRefNum refnum assigned to this connection.
103: *
104: * ERRORS:
105: * EADDRINUSE or 0
106: */
107: int adspInit(sp, ap) /* (DSPPBPtr pb) */
108: CCBPtr sp;
109: struct adspcmd *ap;
110: {
111: /*
112: * Set connection end defaults
113: */
114: sp->badSeqMax = 3; /* # of out-of-sequence packets received */
115: /* until a retransmit advice packet is sent */
116: sp->probeInterval = 6 * 30; /* 30 second probe interval */
117: sp->rtmtInterval = 6 * 5; /* Just a guess --- 5 seconds */
118: sp->sendBlocking = 16;
119: sp->sendInterval = 6;
120: sp->badSeqMax = 3; /* This is the default */
121:
122: sp->ProbeTimer.type = kProbeTimerType;
123: sp->FlushTimer.type = kFlushTimerType;
124: sp->RetryTimer.type = kRetryTimerType;
125: sp->AttnTimer.type = kAttnTimerType;
126: sp->ResetTimer.type = kResetTimerType;
127:
128: if (ap->csCode == dspInit) { /* Only do this if not connection Listener */
129: /*
130: * Initialize send and receive queue. Make sure they are the
131: * right size
132: */
133: sp->rbuflen = RecvQSize;
134: sp->rbuf_mb = 0;
135: sp->sbuflen = SendQSize;
136: sp->sbuf_mb = 0;
137: sp->csbuf_mb = 0;
138:
139: /*
140: * Initialize send and receive defaults
141: */
142:
143: sp->attn_mb = 0;
144: sp->state = sClosed; /* Set state for connection end */
145: /* end dspInit */
146: } else {
147:
148: /* dspCLInit */
149: sp->state = sListening; /* Set state for conn end */
150: } /* end dspCLInit */
151: /*
152: * User opens the socket, so continue with the init stuff
153: */
154: InitContinue(sp, ap);
155: return(0);
156: }
157:
158:
159: /*
160: * AdspBad
161: *
162: *
163: * INPUTS:
164: * --> ap Parameter block
165: *
166: */
167: int AdspBad(ap) /* (DSPPBPtr pb) */
168: struct adspcmd *ap;
169: {
170: dPrintf(D_M_ADSP, D_L_ERROR,
171: ("Hey! Do you have the right AuthToolbox?"));
172: ap->ioResult = controlErr; /* Unknown csCode in the param block */
173: return EINVAL;
174: }
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