source: rtems/cpukit/libnetworking/net/raw_cb.c @ 42e10fa2

4.104.114.9
Last change on this file since 42e10fa2 was 42e10fa2, checked in by Ralf Corsepius <ralf.corsepius@…>, on Sep 1, 2008 at 4:56:33 AM

Stop using old-style function definitions.

  • Property mode set to 100644
File size: 4.0 KB
Line 
1/*
2 * Copyright (c) 1980, 1986, 1993
3 *      The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *      @(#)raw_cb.c    8.1 (Berkeley) 6/10/93
30 * $FreeBSD: src/sys/net/raw_cb.c,v 1.34 2006/06/02 08:27:15 rwatson Exp $
31 */
32
33/*
34 * $Id$
35 */
36
37#include <sys/param.h>
38#include <rtems/bsd/sys/queue.h>
39#include <sys/systm.h>
40#include <sys/mbuf.h>
41#include <sys/socket.h>
42#include <sys/socketvar.h>
43#include <sys/domain.h>
44#include <sys/protosw.h>
45#include <sys/errno.h>
46
47#include <net/if.h>
48#include <net/route.h>
49#include <net/raw_cb.h>
50#include <netinet/in.h>
51
52#ifdef __rtems__
53#define mtx_lock(x)     /* UNUSED */
54#define mtx_unlock(x)   /* UNUSED */
55#define KASSERT(x,y)    /* UNUSED */
56#endif
57
58/*
59 * Routines to manage the raw protocol control blocks.
60 *
61 * TODO:
62 *      hash lookups by protocol family/protocol + address family
63 *      take care of unique address problems per AF?
64 *      redo address binding to allow wildcards
65 */
66
67struct rawcb_list_head rawcb_list;
68static u_long   raw_sendspace = RAWSNDQ;
69static u_long   raw_recvspace = RAWRCVQ;
70
71/*
72 * Allocate a control block and a nominal amount
73 * of buffer space for the socket.
74 */
75int
76raw_attach(struct socket *so, int proto)
77{
78        register struct rawcb *rp = sotorawcb(so);
79        int error;
80
81        /*
82         * It is assumed that raw_attach is called
83         * after space has been allocated for the
84         * rawcb.
85         */
86        if (rp == 0)
87                return (ENOBUFS);
88        error = soreserve(so, raw_sendspace, raw_recvspace);
89        if (error)
90                return (error);
91        rp->rcb_socket = so;
92        rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family;
93        rp->rcb_proto.sp_protocol = proto;
94        mtx_lock(&rawcb_mtx);
95        LIST_INSERT_HEAD(&rawcb_list, rp, list);
96        mtx_unlock(&rawcb_mtx);
97        return (0);
98}
99
100/*
101 * Detach the raw connection block and discard
102 * socket resources.
103 */
104void
105raw_detach(struct rawcb *rp)
106{
107        struct socket *so = rp->rcb_socket;
108
109        KASSERT(so->so_pcb == rp, ("raw_detach: so_pcb != rp"));
110
111        so->so_pcb = NULL;
112        mtx_lock(&rawcb_mtx);
113        LIST_REMOVE(rp, list);
114        mtx_unlock(&rawcb_mtx);
115#ifdef notdef
116        if (rp->rcb_laddr)
117                m_freem(dtom(rp->rcb_laddr));
118        rp->rcb_laddr = 0;
119#endif
120        free((caddr_t)(rp), M_PCB);
121}
122
123/*
124 * Disconnect raw socket.
125 */
126void
127raw_disconnect(struct rawcb *rp)
128{
129
130#ifdef notdef
131        if (rp->rcb_faddr)
132                m_freem(dtom(rp->rcb_faddr));
133        rp->rcb_faddr = 0;
134#endif
135}
136
137#ifdef notdef
138int
139raw_bind(struct socket *so, struct mbuf *nam)
140{
141        struct sockaddr *addr = mtod(nam, struct sockaddr *);
142        register struct rawcb *rp;
143
144        if (ifnet == 0)
145                return (EADDRNOTAVAIL);
146        rp = sotorawcb(so);
147        nam = m_copym(nam, 0, M_COPYALL, M_TRYWAIT);
148        rp->rcb_laddr = mtod(nam, struct sockaddr *);
149        return (0);
150}
151#endif
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