diff options
Diffstat (limited to 'sys/net/raw_cb.c')
| -rw-r--r-- | sys/net/raw_cb.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/sys/net/raw_cb.c b/sys/net/raw_cb.c new file mode 100644 index 00000000000..a8e1fc36ce0 --- /dev/null +++ b/sys/net/raw_cb.c @@ -0,0 +1,146 @@ +/* $NetBSD: raw_cb.c,v 1.8 1995/06/12 00:46:53 mycroft Exp $ */ + +/* + * Copyright (c) 1980, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)raw_cb.c 8.1 (Berkeley) 6/10/93 + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <sys/socketvar.h> +#include <sys/domain.h> +#include <sys/protosw.h> +#include <sys/errno.h> + +#include <net/if.h> +#include <net/route.h> +#include <net/raw_cb.h> +#include <netinet/in.h> + +/* + * Routines to manage the raw protocol control blocks. + * + * TODO: + * hash lookups by protocol family/protocol + address family + * take care of unique address problems per AF? + * redo address binding to allow wildcards + */ + +u_long raw_sendspace = RAWSNDQ; +u_long raw_recvspace = RAWRCVQ; + +/* + * Allocate a control block and a nominal amount + * of buffer space for the socket. + */ +int +raw_attach(so, proto) + register struct socket *so; + int proto; +{ + register struct rawcb *rp = sotorawcb(so); + int error; + + /* + * It is assumed that raw_attach is called + * after space has been allocated for the + * rawcb. + */ + if (rp == 0) + return (ENOBUFS); + if (error = soreserve(so, raw_sendspace, raw_recvspace)) + return (error); + rp->rcb_socket = so; + rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family; + rp->rcb_proto.sp_protocol = proto; + LIST_INSERT_HEAD(&rawcb, rp, rcb_list); + return (0); +} + +/* + * Detach the raw connection block and discard + * socket resources. + */ +void +raw_detach(rp) + register struct rawcb *rp; +{ + struct socket *so = rp->rcb_socket; + + so->so_pcb = 0; + sofree(so); + LIST_REMOVE(rp, rcb_list); +#ifdef notdef + if (rp->rcb_laddr) + m_freem(dtom(rp->rcb_laddr)); + rp->rcb_laddr = 0; +#endif + free((caddr_t)(rp), M_PCB); +} + +/* + * Disconnect and possibly release resources. + */ +void +raw_disconnect(rp) + struct rawcb *rp; +{ + +#ifdef notdef + if (rp->rcb_faddr) + m_freem(dtom(rp->rcb_faddr)); + rp->rcb_faddr = 0; +#endif + if (rp->rcb_socket->so_state & SS_NOFDREF) + raw_detach(rp); +} + +#ifdef notdef +int +raw_bind(so, nam) + register struct socket *so; + struct mbuf *nam; +{ + struct sockaddr *addr = mtod(nam, struct sockaddr *); + register struct rawcb *rp; + + if (ifnet == 0) + return (EADDRNOTAVAIL); + rp = sotorawcb(so); + nam = m_copym(nam, 0, M_COPYALL, M_WAITOK); + rp->rcb_laddr = mtod(nam, struct sockaddr *); + return (0); +} +#endif |