1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * dspNewCID.c 30 * 31 * From v01.04 04/20/90 mbs 32 * Modified, April 9, 1997 by Tuyen Nguyen for MacOSX. 33 */ 34 35#include <sys/errno.h> 36#include <sys/types.h> 37#include <sys/param.h> 38#include <machine/spl.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/proc.h> 42#include <sys/filedesc.h> 43#include <sys/fcntl.h> 44#include <sys/mbuf.h> 45#include <sys/socket.h> 46 47#include <netat/sysglue.h> 48#include <netat/appletalk.h> 49#include <netat/at_pcb.h> 50#include <netat/debug.h> 51#include <netat/adsp.h> 52#include <netat/adsp_internal.h> 53 54/* 55 * dspNewCID 56 * 57 * INPUTS: 58 * --> ccbRefNum refnum of connection end 59 * 60 * OUTPUTS: 61 * <-- newCID new connection identifier 62 * 63 * ERRORS: 64 * errRefNum bad connection refnum 65 * errState connection is not closed 66 */ 67int adspNewCID(sp, pb) /* (DSPPBPtr pb) */ 68 CCBPtr sp; 69 struct adspcmd *pb; 70{ 71 if (sp == 0) { 72 pb->ioResult = errRefNum; 73 return EINVAL; 74 } 75 76 if (sp->state != sClosed) { /* Can only assign to a closed connection */ 77 pb->ioResult = errState; 78 return EINVAL; 79 } 80 81 /* 82 * Assign a unique connection ID to this ccb 83 */ 84 sp->locCID = pb->u.newCIDParams.newcid = NextCID(); 85 86 pb->ioResult = 0; 87 adspioc_ack(0, (gbuf_t *)pb->ioc, pb->gref); 88 return 0; 89} 90