Return to rmp.c CVS log

Up to [Net/2] / Net2 / netrmp

Annotation of Net2/netrmp/rmp.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 University of Utah.
        !             3:  * Copyright (c) 1990 The Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * This code is derived from software contributed to Berkeley by
        !             7:  * the Systems Programming Group of the University of Utah Computer
        !             8:  * Science Department.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. All advertising materials mentioning features or use of this software
        !            19:  *    must display the following acknowledgement:
        !            20:  *     This product includes software developed by the University of
        !            21:  *     California, Berkeley and its contributors.
        !            22:  * 4. Neither the name of the University nor the names of its contributors
        !            23:  *    may be used to endorse or promote products derived from this software
        !            24:  *    without specific prior written permission.
        !            25:  *
        !            26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            36:  * SUCH DAMAGE.
        !            37:  *
        !            38:  * from: Utah $Hdr: rmp.c 1.3 89/06/07$
        !            39:  *
        !            40:  *     @(#)rmp.c       7.1 (Berkeley) 5/8/90
        !            41:  */
        !            42: 
        !            43: #include "param.h"
        !            44: #include "mbuf.h"
        !            45: #include "socket.h"
        !            46: #include "socketvar.h"
        !            47: 
        !            48: #include "../net/if.h"
        !            49: #include "../net/route.h"
        !            50: #include "../net/raw_cb.h"
        !            51: 
        !            52: #include "../netrmp/rmp.h"
        !            53: #include "../netrmp/rmp_var.h"
        !            54: 
        !            55: /*
        !            56: **  rmp_output: route packet to proper network interface.
        !            57: */
        !            58: 
        !            59: rmp_output(m, so)
        !            60: struct mbuf *m;
        !            61: struct socket *so;
        !            62: {
        !            63:        struct ifnet *ifp;
        !            64:        struct rawcb *rp = sotorawcb(so);
        !            65:        struct rmp_packet *rmp;
        !            66: 
        !            67:        /*
        !            68:         *  Convert the mbuf back to an RMP packet so we can get the
        !            69:         *  address of the "ifnet struct" specifying the interface it
        !            70:         *  should go out on.
        !            71:         */
        !            72:        rmp = mtod(m, struct rmp_packet *);
        !            73:        ifp = rmp->ifp;
        !            74: 
        !            75:        /*
        !            76:         *  Strip off the "ifnet struct ptr" from the packet leaving
        !            77:         *  us with a complete IEEE 802.2 packet.
        !            78:         */
        !            79:        m_adj(m, sizeof(struct ifnet *));
        !            80: 
        !            81:        /*
        !            82:         *  Send the packet.
        !            83:         */
        !            84:        return ((*ifp->if_output) (ifp, m, &rp->rcb_faddr));
        !            85: }

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