projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 43866e37 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| 43866e37 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 43866e37 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * dspNewCID.c | |
| 27 | * | |
| 28 | * From v01.04 04/20/90 mbs | |
| 29 | * Modified, April 9, 1997 by Tuyen Nguyen for MacOSX. | |
| 30 | */ | |
| 31 | ||
| 32 | #include <sys/errno.h> | |
| 33 | #include <sys/types.h> | |
| 34 | #include <sys/param.h> | |
| 35 | #include <machine/spl.h> | |
| 36 | #include <sys/systm.h> | |
| 37 | #include <sys/kernel.h> | |
| 38 | #include <sys/proc.h> | |
| 39 | #include <sys/filedesc.h> | |
| 40 | #include <sys/fcntl.h> | |
| 41 | #include <sys/mbuf.h> | |
| 42 | #include <sys/socket.h> | |
| 43 | ||
| 44 | #include <netat/sysglue.h> | |
| 45 | #include <netat/appletalk.h> | |
| 46 | #include <netat/at_pcb.h> | |
| 47 | #include <netat/debug.h> | |
| 48 | #include <netat/adsp.h> | |
| 49 | #include <netat/adsp_internal.h> | |
| 50 | ||
| 51 | /* | |
| 52 | * dspNewCID | |
| 53 | * | |
| 54 | * INPUTS: | |
| 55 | * --> ccbRefNum refnum of connection end | |
| 56 | * | |
| 57 | * OUTPUTS: | |
| 58 | * <-- newCID new connection identifier | |
| 59 | * | |
| 60 | * ERRORS: | |
| 61 | * errRefNum bad connection refnum | |
| 62 | * errState connection is not closed | |
| 63 | */ | |
| 64 | int adspNewCID(sp, pb) /* (DSPPBPtr pb) */ | |
| 65 | CCBPtr sp; | |
| 66 | struct adspcmd *pb; | |
| 67 | { | |
| 68 | if (sp == 0) { | |
| 69 | pb->ioResult = errRefNum; | |
| 70 | return EINVAL; | |
| 71 | } | |
| 72 | ||
| 73 | if (sp->state != sClosed) { /* Can only assign to a closed connection */ | |
| 74 | pb->ioResult = errState; | |
| 75 | return EINVAL; | |
| 76 | } | |
| 77 | ||
| 78 | /* | |
| 79 | * Assign a unique connection ID to this ccb | |
| 80 | */ | |
| 81 | sp->locCID = pb->u.newCIDParams.newcid = NextCID(); | |
| 82 | ||
| 83 | pb->ioResult = 0; | |
| 84 | adspioc_ack(0, pb->ioc, pb->gref); | |
| 85 | return 0; | |
| 86 | } |