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Annotation of XNU/bsd/netat/adsp_CLDeny.c, revision 1.1.1.1

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:  * CLDeny.c
                     24:  *
                     25:  * From        Mike Shoemaker 9/6/90
                     26:  *   Modified, April 9, 1997 by Tuyen Nguyen for MacOSX.
                     27:  */
                     28: 
                     29: #include <sys/errno.h>
                     30: #include <sys/types.h>
                     31: #include <sys/param.h>
                     32: #include <machine/spl.h>
                     33: #include <sys/systm.h>
                     34: #include <sys/kernel.h>
                     35: #include <sys/proc.h>
                     36: #include <sys/filedesc.h>
                     37: #include <sys/fcntl.h>
                     38: #include <sys/mbuf.h>
                     39: #include <sys/socket.h>
                     40: 
                     41: #include <netat/sysglue.h>
                     42: #include <netat/appletalk.h>
                     43: #include <netat/ddp.h>
                     44: #include <netat/at_pcb.h>
                     45: #include <netat/debug.h>
                     46: #include <netat/adsp.h>
                     47: #include <netat/adsp_internal.h>
                     48: 
                     49: /*
                     50:  * dspCLDeny
                     51:  * 
                     52:  * INPUTS:
                     53:  *     --> ccbRefNum           refnum of connection listener
                     54:  *     --> remoteCID           connection identifier of remote connection end
                     55:  *     --> remoteAddress       internet address of remote connection end
                     56:  *
                     57:  * OUTPUTS:
                     58:  *     none
                     59:  *
                     60:  * ERRORS:
                     61:  *     errRefNum               bad connection refnum
                     62:  *     errState                not a connection listener
                     63:  *     errAborted              request aborted by a Remove call
                     64:  */
                     65: int adspCLDeny(sp, pb)                 /* (DSPPBPtr pb) */
                     66:     struct adspcmd *pb;
                     67:     CCBPtr sp;
                     68: {
                     69:     gbuf_t *mp;
                     70:     ADSP_FRAMEPtr adspp;
                     71:     ADSP_OPEN_DATAPtr adspop;
                     72:        
                     73:     if (sp == 0) {
                     74:        pb->ioResult = errRefNum;
                     75:        return EINVAL;
                     76:     }
                     77:     mp = gbuf_alloc(AT_WR_OFFSET + DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN,
                     78:                PRI_LO);
                     79:     gbuf_rinc(mp,AT_WR_OFFSET);
                     80:     gbuf_wset(mp,DDPL_FRAME_LEN);
                     81:     adspp = (ADSP_FRAMEPtr)gbuf_wptr(mp);
                     82:     gbuf_winc(mp,ADSP_FRAME_LEN);
                     83:     bzero((caddr_t) gbuf_rptr(mp),DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN);
                     84:     adspp->descriptor = ADSP_CONTROL_BIT | ADSP_CTL_ODENY;
                     85:     adspop = (ADSP_OPEN_DATAPtr)gbuf_wptr(mp);
                     86:     gbuf_winc(mp,ADSP_OPEN_FRAME_LEN);
                     87:     UAS_ASSIGN(adspop->dstCID, pb->u.openParams.remoteCID);
                     88:     UAS_ASSIGN(adspop->version, 0x100);
                     89:     adsp_sendddp(sp, mp, 
                     90:                 DDPL_FRAME_LEN + ADSP_FRAME_LEN + ADSP_OPEN_FRAME_LEN, 
                     91:                 &pb->u.openParams.remoteAddress, DDP_ADSP);
                     92:     adspioc_ack(0, pb->ioc, pb->gref);
                     93:     return 0;
                     94: }

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