Return to aurp_rd.c CVS log

Up to [Apple XNU] / XNU / bsd / netat

Annotation of XNU/bsd/netat/aurp_rd.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:  *     Copyright (c) 1996 Apple Computer, Inc. 
        !            24:  *
        !            25:  *             Created April 8, 1996 by Tuyen Nguyen
        !            26:  *   Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
        !            27:  *
        !            28:  *     File: rd.c
        !            29:  */
        !            30: #include <sys/errno.h>
        !            31: #include <sys/types.h>
        !            32: #include <sys/param.h>
        !            33: #include <machine/spl.h>
        !            34: #include <sys/systm.h>
        !            35: #include <sys/kernel.h>
        !            36: #include <sys/proc.h>
        !            37: #include <sys/filedesc.h>
        !            38: #include <sys/fcntl.h>
        !            39: #include <sys/mbuf.h>
        !            40: #include <sys/socket.h>
        !            41: #include <sys/socketvar.h>
        !            42: #include <net/if.h>
        !            43: 
        !            44: #include <netat/sysglue.h>
        !            45: #include <netat/appletalk.h>
        !            46: #include <netat/at_var.h>
        !            47: #include <netat/routing_tables.h>
        !            48: #include <netat/at_pcb.h>
        !            49: #include <netat/aurp.h>
        !            50: 
        !            51: /* */
        !            52: void AURPsndRDReq(state)
        !            53:        aurp_state_t *state;
        !            54: {
        !            55:        int msize;
        !            56:        gbuf_t *m;
        !            57:        aurp_hdr_t *hdrp;
        !            58: 
        !            59:        if ((state->rcv_state == AURPSTATE_Unconnected) ||
        !            60:                        (state->snd_state == AURPSTATE_Unconnected))
        !            61:                return;
        !            62: 
        !            63:        /* update state info */
        !            64:        state->rcv_state = AURPSTATE_Unconnected;
        !            65:        state->snd_state = AURPSTATE_Unconnected;
        !            66: 
        !            67:        /* notify tunnel peer of router going-down for the data receiver side */
        !            68:        msize = sizeof(aurp_hdr_t) + sizeof(short);
        !            69:        if ((m = (gbuf_t *)gbuf_alloc(msize, PRI_MED)) != 0) {
        !            70:                gbuf_wset(m,msize);
        !            71: 
        !            72:                /* construct the router down packet */
        !            73:                hdrp = (aurp_hdr_t *)gbuf_rptr(m);
        !            74:                hdrp->connection_id = state->rcv_connection_id;
        !            75:                hdrp->sequence_number = 0;
        !            76:                hdrp->command_code = AURPCMD_RDReq;
        !            77:                hdrp->flags = 0;
        !            78:                *(short *)(hdrp+1) = AURPERR_NormalConnectionClose;
        !            79: 
        !            80:                /* send the packet */
        !            81:                AURPsend(m, AUD_AURP, state->rem_node);
        !            82:        }
        !            83: 
        !            84:        /* notify tunnel peer of router going-down for the data sender side */
        !            85:        msize = sizeof(aurp_hdr_t) + sizeof(short);
        !            86:        if ((m = (gbuf_t *)gbuf_alloc(msize, PRI_MED)) != 0) {
        !            87:                gbuf_wset(m,msize);
        !            88: 
        !            89:                /* construct the router down packet */
        !            90:                hdrp = (aurp_hdr_t *)gbuf_rptr(m);
        !            91:                hdrp->connection_id = state->snd_connection_id;
        !            92:                hdrp->sequence_number = state->snd_sequence_number;
        !            93:                hdrp->command_code = AURPCMD_RDReq;
        !            94:                hdrp->flags = 0;
        !            95:                *(short *)(hdrp+1) = AURPERR_NormalConnectionClose;
        !            96: 
        !            97:                /* send the packet */
        !            98:                AURPsend(m, AUD_AURP, state->rem_node);
        !            99:        }
        !           100: }
        !           101: 
        !           102: /* */
        !           103: void AURPrcvRDReq(state, m)
        !           104:        aurp_state_t *state;
        !           105:        gbuf_t *m;
        !           106: {
        !           107:        /* update state info */
        !           108:        state->rcv_state = AURPSTATE_Unconnected;
        !           109:        state->snd_state = AURPSTATE_Unconnected;
        !           110:        AURPcleanup(state);
        !           111: 
        !           112:        /* purge all routes associated with the tunnel peer going-down */
        !           113:        AURPpurgeri(state->rem_node);
        !           114: 
        !           115:        /* respond to the going-down peer with an RI Ack packet */
        !           116:        AURPsndRIAck(state, m, 0);
        !           117: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.