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