Return to raw_cb.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / net

Annotation of 43BSDReno/sys/net/raw_cb.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1980, 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)raw_cb.c    7.11 (Berkeley) 6/28/90
        !            21:  */
        !            22: 
        !            23: #include "param.h"
        !            24: #include "systm.h"
        !            25: #include "mbuf.h"
        !            26: #include "socket.h"
        !            27: #include "socketvar.h"
        !            28: #include "domain.h"
        !            29: #include "protosw.h"
        !            30: #include "errno.h"
        !            31: 
        !            32: #include "if.h"
        !            33: #include "route.h"
        !            34: #include "raw_cb.h"
        !            35: #include "../netinet/in.h"
        !            36: 
        !            37: #include "machine/mtpr.h"
        !            38: 
        !            39: /*
        !            40:  * Routines to manage the raw protocol control blocks. 
        !            41:  *
        !            42:  * TODO:
        !            43:  *     hash lookups by protocol family/protocol + address family
        !            44:  *     take care of unique address problems per AF?
        !            45:  *     redo address binding to allow wildcards
        !            46:  */
        !            47: 
        !            48: u_long raw_sendspace = RAWSNDQ;
        !            49: u_long raw_recvspace = RAWRCVQ;
        !            50: 
        !            51: /*
        !            52:  * Allocate a control block and a nominal amount
        !            53:  * of buffer space for the socket.
        !            54:  */
        !            55: raw_attach(so, proto)
        !            56:        register struct socket *so;
        !            57:        int proto;
        !            58: {
        !            59:        register struct rawcb *rp = sotorawcb(so);
        !            60:        int error;
        !            61: 
        !            62:        /*
        !            63:         * It is assumed that raw_attach is called
        !            64:         * after space has been allocated for the
        !            65:         * rawcb.
        !            66:         */
        !            67:        if (rp == 0)
        !            68:                return (ENOBUFS);
        !            69:        if (error = soreserve(so, raw_sendspace, raw_recvspace))
        !            70:                return (error);
        !            71:        rp->rcb_socket = so;
        !            72:        rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family;
        !            73:        rp->rcb_proto.sp_protocol = proto;
        !            74:        insque(rp, &rawcb);
        !            75:        return (0);
        !            76: }
        !            77: 
        !            78: /*
        !            79:  * Detach the raw connection block and discard
        !            80:  * socket resources.
        !            81:  */
        !            82: raw_detach(rp)
        !            83:        register struct rawcb *rp;
        !            84: {
        !            85:        struct socket *so = rp->rcb_socket;
        !            86: 
        !            87:        so->so_pcb = 0;
        !            88:        sofree(so);
        !            89:        remque(rp);
        !            90: #ifdef notdef
        !            91:        if (rp->rcb_laddr)
        !            92:                m_freem(dtom(rp->rcb_laddr));
        !            93:        rp->rcb_laddr = 0;
        !            94: #endif
        !            95:        free((caddr_t)(rp), M_PCB);
        !            96: }
        !            97: 
        !            98: /*
        !            99:  * Disconnect and possibly release resources.
        !           100:  */
        !           101: raw_disconnect(rp)
        !           102:        struct rawcb *rp;
        !           103: {
        !           104: 
        !           105: #ifdef notdef
        !           106:        if (rp->rcb_faddr)
        !           107:                m_freem(dtom(rp->rcb_faddr));
        !           108:        rp->rcb_faddr = 0;
        !           109: #endif
        !           110:        if (rp->rcb_socket->so_state & SS_NOFDREF)
        !           111:                raw_detach(rp);
        !           112: }
        !           113: 
        !           114: #ifdef notdef
        !           115: raw_bind(so, nam)
        !           116:        register struct socket *so;
        !           117:        struct mbuf *nam;
        !           118: {
        !           119:        struct sockaddr *addr = mtod(nam, struct sockaddr *);
        !           120:        register struct rawcb *rp;
        !           121: 
        !           122:        if (ifnet == 0)
        !           123:                return (EADDRNOTAVAIL);
        !           124:        rp = sotorawcb(so);
        !           125:        nam = m_copym(nam, 0, M_COPYALL, M_WAITOK);
        !           126:        rp->rcb_laddr = mtod(nam, struct sockaddr *);
        !           127:        return (0);
        !           128: }
        !           129: #endif

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