Source to bsd/netat/adsp_CLDeny.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * CLDeny.c
 *
 * From	Mike Shoemaker 9/6/90
 *   Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
 */

#include <sys/errno.h>
#include <sys/types.h>
#include <sys/param.h>
#include <machine/spl.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/fcntl.h>
#include <sys/mbuf.h>
#include <sys/socket.h>

#include <netat/sysglue.h>
#include <netat/appletalk.h>
#include <netat/ddp.h>
#include <netat/at_pcb.h>
#include <netat/debug.h>
#include <netat/adsp.h>
#include <netat/adsp_internal.h>

/*
 * dspCLDeny
 * 
 * INPUTS:
 * 	--> ccbRefNum		refnum of connection listener
 *	--> remoteCID		connection identifier of remote connection end
 *	--> remoteAddress	internet address of remote connection end
 *
 * OUTPUTS:
 *	none
 *
 * ERRORS:
 *	errRefNum	 	bad connection refnum
 *	errState		not a connection listener
 *	errAborted		request aborted by a Remove call
 */
int adspCLDeny(sp, pb)			/* (DSPPBPtr pb) */
    struct adspcmd *pb;
    CCBPtr sp;
{
    gbuf_t *mp;
    ADSP_FRAMEPtr adspp;
    ADSP_OPEN_DATAPtr adspop;
	
    if (sp == 0) {
	pb->ioResult = errRefNum;
	return EINVAL;
    }
    mp = gbuf_alloc(AT_WR_OFFSET + DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN,
		PRI_LO);
    gbuf_rinc(mp,AT_WR_OFFSET);
    gbuf_wset(mp,DDPL_FRAME_LEN);
    adspp = (ADSP_FRAMEPtr)gbuf_wptr(mp);
    gbuf_winc(mp,ADSP_FRAME_LEN);
    bzero((caddr_t) gbuf_rptr(mp),DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN);
    adspp->descriptor = ADSP_CONTROL_BIT | ADSP_CTL_ODENY;
    adspop = (ADSP_OPEN_DATAPtr)gbuf_wptr(mp);
    gbuf_winc(mp,ADSP_OPEN_FRAME_LEN);
    UAS_ASSIGN(adspop->dstCID, pb->u.openParams.remoteCID);
    UAS_ASSIGN(adspop->version, 0x100);
    adsp_sendddp(sp, mp, 
		 DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN, 
		 &pb->u.openParams.remoteAddress, DDP_ADSP);
    adspioc_ack(0, pb->ioc, pb->gref);
    return 0;
}