version 1.11, 1994/02/02 05:59:08 |
version 1.53, 2000/03/30 13:25:04 |
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/* $NetBSD$ */ |
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/* |
/* |
* Copyright (c) 1982, 1986, 1988 Regents of the University of California. |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* All rights reserved. |
* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the project nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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/* |
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* Copyright (c) 1982, 1986, 1988, 1993 |
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* The Regents of the University of California. All rights reserved. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* modification, are permitted provided that the following conditions |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
* |
* |
* from: @(#)raw_ip.c 7.8 (Berkeley) 7/25/90 |
* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
* $Id$ |
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*/ |
*/ |
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#include "opt_ipsec.h" |
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#include "opt_mrouting.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/malloc.h> |
#include <sys/malloc.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
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#include <sys/protosw.h> |
#include <sys/protosw.h> |
#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/errno.h> |
#include <sys/errno.h> |
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#include <sys/systm.h> |
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#include <sys/proc.h> |
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#include <net/if.h> |
#include <net/if.h> |
#include <net/route.h> |
#include <net/route.h> |
#include <net/raw_cb.h> |
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#include <netinet/in.h> |
#include <netinet/in.h> |
#include <netinet/in_systm.h> |
#include <netinet/in_systm.h> |
#include <netinet/ip.h> |
#include <netinet/ip.h> |
#include <netinet/ip_var.h> |
#include <netinet/ip_var.h> |
#include <netinet/in_pcb.h> |
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#include <netinet/ip_mroute.h> |
#include <netinet/ip_mroute.h> |
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#include <netinet/ip_icmp.h> |
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#include <netinet/in_pcb.h> |
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#include <netinet/in_var.h> |
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#include <machine/stdarg.h> |
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#ifdef IPSEC |
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#include <netinet6/ipsec.h> |
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#endif /*IPSEC*/ |
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struct inpcbtable rawcbtable; |
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int rip_bind __P((struct inpcb *, struct mbuf *)); |
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int rip_connect __P((struct inpcb *, struct mbuf *)); |
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void rip_disconnect __P((struct inpcb *)); |
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/* |
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* Nominal space allocated to a raw ip socket. |
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*/ |
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#define RIPSNDQ 8192 |
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#define RIPRCVQ 8192 |
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/* |
/* |
* Raw interface to IP protocol. |
* Raw interface to IP protocol. |
*/ |
*/ |
struct sockaddr_in ripdst = { sizeof(ripdst), AF_INET }; |
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struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; |
/* |
struct sockproto ripproto = { PF_INET }; |
* Initialize raw connection block q. |
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*/ |
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void |
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rip_init() |
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{ |
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in_pcbinit(&rawcbtable, 1, 1); |
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} |
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static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; |
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/* |
/* |
* Setup generic address and protocol structures |
* Setup generic address and protocol structures |
Line 66 struct sockproto ripproto = { PF_INET }; |
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Line 129 struct sockproto ripproto = { PF_INET }; |
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* mbuf chain. |
* mbuf chain. |
*/ |
*/ |
void |
void |
rip_input(m) |
#if __STDC__ |
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rip_input(struct mbuf *m, ...) |
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#else |
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rip_input(m, va_alist) |
struct mbuf *m; |
struct mbuf *m; |
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va_dcl |
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#endif |
{ |
{ |
register struct ip *ip = mtod(m, struct ip *); |
int off, proto; |
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struct ip *ip = mtod(m, struct ip *); |
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struct inpcb *inp; |
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struct inpcb *last = 0; |
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struct mbuf *opts = 0; |
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struct sockaddr_in ripsrc; |
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va_list ap; |
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va_start(ap, m); |
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off = va_arg(ap, int); |
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proto = va_arg(ap, int); |
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va_end(ap); |
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ripproto.sp_protocol = ip->ip_p; |
ripsrc.sin_family = AF_INET; |
ripdst.sin_addr = ip->ip_dst; |
ripsrc.sin_len = sizeof(struct sockaddr_in); |
ripsrc.sin_addr = ip->ip_src; |
ripsrc.sin_addr = ip->ip_src; |
if (raw_input(m, &ripproto, (struct sockaddr *)&ripsrc, |
ripsrc.sin_port = 0; |
(struct sockaddr *)&ripdst) == 0) { |
bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); |
ipstat.ips_noproto++; |
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ipstat.ips_delivered--; |
/* |
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* XXX Compatibility: programs using raw IP expect ip_len |
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* XXX to have the header length subtracted. |
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*/ |
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ip->ip_len -= ip->ip_hl << 2; |
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for (inp = rawcbtable.inpt_queue.cqh_first; |
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inp != (struct inpcb *)&rawcbtable.inpt_queue; |
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inp = inp->inp_queue.cqe_next) { |
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if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
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continue; |
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if (!in_nullhost(inp->inp_laddr) && |
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!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
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continue; |
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if (!in_nullhost(inp->inp_faddr) && |
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!in_hosteq(inp->inp_faddr, ip->ip_src)) |
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continue; |
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if (last) { |
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struct mbuf *n; |
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if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) { |
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if (last->inp_flags & INP_CONTROLOPTS || |
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last->inp_socket->so_options & SO_TIMESTAMP) |
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ip_savecontrol(last, &opts, ip, n); |
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if (sbappendaddr(&last->inp_socket->so_rcv, |
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sintosa(&ripsrc), n, opts) == 0) { |
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/* should notify about lost packet */ |
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m_freem(n); |
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if (opts) |
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m_freem(opts); |
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} else |
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sorwakeup(last->inp_socket); |
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opts = NULL; |
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} |
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} |
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last = inp; |
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} |
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if (last) { |
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if (last->inp_flags & INP_CONTROLOPTS || |
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last->inp_socket->so_options & SO_TIMESTAMP) |
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ip_savecontrol(last, &opts, ip, m); |
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if (sbappendaddr(&last->inp_socket->so_rcv, |
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sintosa(&ripsrc), m, opts) == 0) { |
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m_freem(m); |
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if (opts) |
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m_freem(opts); |
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} else |
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sorwakeup(last->inp_socket); |
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} else { |
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if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
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0, 0); |
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ipstat.ips_noproto++; |
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ipstat.ips_delivered--; |
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} else |
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m_freem(m); |
} |
} |
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return; |
} |
} |
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/* |
/* |
* Generate IP header and pass packet to ip_output. |
* Generate IP header and pass packet to ip_output. |
* Tack on options user may have setup with control call. |
* Tack on options user may have setup with control call. |
*/ |
*/ |
#define satosin(sa) ((struct sockaddr_in *)(sa)) |
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int |
int |
rip_output(m, so) |
#if __STDC__ |
register struct mbuf *m; |
rip_output(struct mbuf *m, ...) |
struct socket *so; |
#else |
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rip_output(m, va_alist) |
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struct mbuf *m; |
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va_dcl |
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#endif |
{ |
{ |
register struct ip *ip; |
struct inpcb *inp; |
register struct raw_inpcb *rp = sotorawinpcb(so); |
struct ip *ip; |
register struct sockaddr_in *sin; |
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struct mbuf *opts; |
struct mbuf *opts; |
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int flags; |
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va_list ap; |
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va_start(ap, m); |
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inp = va_arg(ap, struct inpcb *); |
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va_end(ap); |
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flags = |
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(inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST |
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| IP_RETURNMTU; |
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/* |
/* |
* If the user handed us a complete IP packet, use it. |
* If the user handed us a complete IP packet, use it. |
* Otherwise, allocate an mbuf for a header and fill it in. |
* Otherwise, allocate an mbuf for a header and fill it in. |
*/ |
*/ |
if (rp->rinp_flags & RINPF_HDRINCL) { |
if ((inp->inp_flags & INP_HDRINCL) == 0) { |
ip = mtod(m, struct ip *); |
if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { |
if (ip->ip_len > m->m_pkthdr.len) |
m_freem(m); |
return EMSGSIZE; |
return (EMSGSIZE); |
ip->ip_len = m->m_pkthdr.len; |
} |
opts = NULL; |
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} else { |
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M_PREPEND(m, sizeof(struct ip), M_WAIT); |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
ip->ip_tos = 0; |
ip->ip_tos = 0; |
ip->ip_off = 0; |
ip->ip_off = 0; |
ip->ip_p = rp->rinp_rcb.rcb_proto.sp_protocol; |
ip->ip_p = inp->inp_ip.ip_p; |
ip->ip_len = m->m_pkthdr.len; |
ip->ip_len = m->m_pkthdr.len; |
if (sin = satosin(rp->rinp_rcb.rcb_laddr)) { |
ip->ip_src = inp->inp_laddr; |
ip->ip_src = sin->sin_addr; |
ip->ip_dst = inp->inp_faddr; |
} else |
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ip->ip_src.s_addr = 0; |
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if (sin = satosin(rp->rinp_rcb.rcb_faddr)) |
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ip->ip_dst = sin->sin_addr; |
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ip->ip_ttl = MAXTTL; |
ip->ip_ttl = MAXTTL; |
opts = rp->rinp_options; |
opts = inp->inp_options; |
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} else { |
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if (m->m_pkthdr.len > IP_MAXPACKET) { |
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m_freem(m); |
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return (EMSGSIZE); |
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} |
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ip = mtod(m, struct ip *); |
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if (m->m_pkthdr.len != ip->ip_len) { |
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m_freem(m); |
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return (EINVAL); |
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} |
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if (ip->ip_id == 0) |
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ip->ip_id = htons(ip_id++); |
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opts = NULL; |
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/* XXX prevent ip_output from overwriting header fields */ |
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flags |= IP_RAWOUTPUT; |
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ipstat.ips_rawout++; |
} |
} |
return (ip_output(m, opts, &rp->rinp_route, |
#ifdef IPSEC |
(so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST |
ipsec_setsocket(m, inp->inp_socket); |
, rp->rinp_rcb.rcb_moptions )); |
#endif /*IPSEC*/ |
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return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, &inp->inp_errormtu)); |
} |
} |
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/* |
/* |
Line 137 rip_ctloutput(op, so, level, optname, m) |
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Line 294 rip_ctloutput(op, so, level, optname, m) |
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int level, optname; |
int level, optname; |
struct mbuf **m; |
struct mbuf **m; |
{ |
{ |
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struct inpcb *inp = sotoinpcb(so); |
int error = 0; |
int error = 0; |
register struct raw_inpcb *rp = sotorawinpcb(so); |
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if (level != IPPROTO_IP) |
if (level != IPPROTO_IP) { |
error = EINVAL; |
error = ENOPROTOOPT; |
else switch (op) { |
if (op == PRCO_SETOPT && *m != 0) |
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(void) m_free(*m); |
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} else switch (op) { |
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case PRCO_SETOPT: |
case PRCO_SETOPT: |
switch (optname) { |
switch (optname) { |
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case IP_OPTIONS: |
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return (ip_pcbopts(&rp->rinp_options, *m)); |
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case IP_HDRINCL: |
case IP_HDRINCL: |
if (m == 0 || *m == 0 || (*m)->m_len < sizeof (int)) { |
if (*m == 0 || (*m)->m_len < sizeof (int)) |
error = EINVAL; |
error = EINVAL; |
break; |
else { |
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if (*mtod(*m, int *)) |
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inp->inp_flags |= INP_HDRINCL; |
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else |
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inp->inp_flags &= ~INP_HDRINCL; |
} |
} |
if (*mtod(*m, int *)) |
if (*m != 0) |
rp->rinp_flags |= RINPF_HDRINCL; |
(void) m_free(*m); |
else |
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rp->rinp_flags &= ~RINPF_HDRINCL; |
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break; |
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case IP_MULTICAST_IF: |
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case IP_MULTICAST_TTL: |
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case IP_MULTICAST_LOOP: |
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case IP_ADD_MEMBERSHIP: |
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case IP_DROP_MEMBERSHIP: |
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error = ip_setmoptions(optname, |
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&rp->rinp_rcb.rcb_moptions, *m); |
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break; |
break; |
default: |
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#ifdef MROUTING |
#ifdef MROUTING |
error = ip_mrouter_cmd(optname, so, *m); |
case MRT_INIT: |
#else |
case MRT_DONE: |
error = EINVAL; |
case MRT_ADD_VIF: |
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case MRT_DEL_VIF: |
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case MRT_ADD_MFC: |
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case MRT_DEL_MFC: |
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case MRT_ASSERT: |
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error = ip_mrouter_set(so, optname, m); |
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break; |
#endif |
#endif |
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default: |
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error = ip_ctloutput(op, so, level, optname, m); |
break; |
break; |
} |
} |
break; |
break; |
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case PRCO_GETOPT: |
case PRCO_GETOPT: |
*m = m_get(M_WAIT, MT_SOOPTS); |
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switch (optname) { |
switch (optname) { |
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case IP_OPTIONS: |
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if (rp->rinp_options) { |
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(*m)->m_len = rp->rinp_options->m_len; |
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bcopy(mtod(rp->rinp_options, caddr_t), |
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mtod(*m, caddr_t), (unsigned)(*m)->m_len); |
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} else |
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(*m)->m_len = 0; |
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break; |
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case IP_HDRINCL: |
case IP_HDRINCL: |
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*m = m_get(M_WAIT, M_SOOPTS); |
(*m)->m_len = sizeof (int); |
(*m)->m_len = sizeof (int); |
*mtod(*m, int *) = rp->rinp_flags & RINPF_HDRINCL; |
*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; |
break; |
break; |
case IP_MULTICAST_IF: |
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case IP_MULTICAST_TTL: |
#ifdef MROUTING |
case IP_MULTICAST_LOOP: |
case MRT_VERSION: |
case IP_ADD_MEMBERSHIP: |
case MRT_ASSERT: |
case IP_DROP_MEMBERSHIP: |
error = ip_mrouter_get(so, optname, m); |
error = ip_getmoptions(optname, |
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rp->rinp_rcb.rcb_moptions, m); |
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break; |
break; |
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#endif |
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default: |
default: |
error = EINVAL; |
error = ip_ctloutput(op, so, level, optname, m); |
m_freem(*m); |
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*m = 0; |
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break; |
break; |
} |
} |
break; |
break; |
} |
} |
if (op == PRCO_SETOPT && *m) |
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(void)m_free(*m); |
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return (error); |
return (error); |
} |
} |
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int |
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rip_bind(inp, nam) |
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struct inpcb *inp; |
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struct mbuf *nam; |
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{ |
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struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
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if (nam->m_len != sizeof(*addr)) |
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return (EINVAL); |
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if (ifnet.tqh_first == 0) |
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return (EADDRNOTAVAIL); |
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if (addr->sin_family != AF_INET && |
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addr->sin_family != AF_IMPLINK) |
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return (EAFNOSUPPORT); |
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if (!in_nullhost(addr->sin_addr) && |
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ifa_ifwithaddr(sintosa(addr)) == 0) |
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return (EADDRNOTAVAIL); |
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inp->inp_laddr = addr->sin_addr; |
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return (0); |
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} |
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int |
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rip_connect(inp, nam) |
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struct inpcb *inp; |
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struct mbuf *nam; |
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{ |
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struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
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if (nam->m_len != sizeof(*addr)) |
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return (EINVAL); |
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if (ifnet.tqh_first == 0) |
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return (EADDRNOTAVAIL); |
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if (addr->sin_family != AF_INET && |
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addr->sin_family != AF_IMPLINK) |
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return (EAFNOSUPPORT); |
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inp->inp_faddr = addr->sin_addr; |
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return (0); |
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} |
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void |
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rip_disconnect(inp) |
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struct inpcb *inp; |
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{ |
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inp->inp_faddr = zeroin_addr; |
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} |
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u_long rip_sendspace = RIPSNDQ; |
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u_long rip_recvspace = RIPRCVQ; |
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/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
rip_usrreq(so, req, m, nam, control) |
rip_usrreq(so, req, m, nam, control, p) |
register struct socket *so; |
struct socket *so; |
int req; |
int req; |
struct mbuf *m, *nam, *control; |
struct mbuf *m, *nam, *control; |
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struct proc *p; |
{ |
{ |
register int error = 0; |
struct inpcb *inp; |
register struct raw_inpcb *rp = sotorawinpcb(so); |
int s; |
#if defined(MROUTING) |
int error = 0; |
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#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
#endif |
#endif |
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|
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if (req == PRU_CONTROL) |
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return (in_control(so, (long)m, (caddr_t)nam, |
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(struct ifnet *)control, p)); |
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|
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if (req == PRU_PURGEIF) { |
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in_purgeif((struct ifnet *)control); |
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in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
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return (0); |
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} |
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s = splsoftnet(); |
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inp = sotoinpcb(so); |
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#ifdef DIAGNOSTIC |
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if (req != PRU_SEND && req != PRU_SENDOOB && control) |
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panic("rip_usrreq: unexpected control mbuf"); |
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#endif |
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if (inp == 0 && req != PRU_ATTACH) { |
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error = EINVAL; |
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goto release; |
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} |
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switch (req) { |
switch (req) { |
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case PRU_ATTACH: |
case PRU_ATTACH: |
if (rp) |
if (inp != 0) { |
panic("rip_attach"); |
error = EISCONN; |
MALLOC(rp, struct raw_inpcb *, sizeof *rp, M_PCB, M_WAITOK); |
break; |
if (rp == 0) |
} |
return (ENOBUFS); |
if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) { |
bzero((caddr_t)rp, sizeof *rp); |
error = EACCES; |
so->so_pcb = (caddr_t)rp; |
break; |
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} |
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if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
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error = soreserve(so, rip_sendspace, rip_recvspace); |
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if (error) |
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break; |
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} |
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error = in_pcballoc(so, &rawcbtable); |
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if (error) |
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break; |
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inp = sotoinpcb(so); |
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inp->inp_ip.ip_p = (long)nam; |
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#ifdef IPSEC |
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error = ipsec_init_policy(so, &inp->inp_sp); |
|
if (error != 0) { |
|
in_pcbdetach(inp); |
|
break; |
|
} |
|
#endif /*IPSEC*/ |
break; |
break; |
|
|
case PRU_DETACH: |
case PRU_DETACH: |
if (rp == 0) |
#ifdef MROUTING |
panic("rip_detach"); |
|
#if defined(MROUTING) |
|
if (so == ip_mrouter) |
if (so == ip_mrouter) |
ip_mrouter_done(); |
ip_mrouter_done(); |
#endif |
#endif |
if (rp->rinp_options) |
in_pcbdetach(inp); |
m_freem(rp->rinp_options); |
|
if (rp->rinp_rcb.rcb_moptions) |
|
ip_freemoptions(rp->rinp_rcb.rcb_moptions); |
|
if (rp->rinp_route.ro_rt) |
|
RTFREE(rp->rinp_route.ro_rt); |
|
if (rp->rinp_rcb.rcb_laddr) |
|
rp->rinp_rcb.rcb_laddr = 0; |
|
break; |
break; |
|
|
case PRU_BIND: |
case PRU_BIND: |
{ |
error = rip_bind(inp, nam); |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
break; |
|
|
if (nam->m_len != sizeof(*addr)) |
case PRU_LISTEN: |
return (EINVAL); |
error = EOPNOTSUPP; |
if ((ifnet == 0) || |
break; |
((addr->sin_family != AF_INET) && |
|
(addr->sin_family != AF_IMPLINK)) || |
|
(addr->sin_addr.s_addr && |
|
ifa_ifwithaddr((struct sockaddr *)addr) == 0)) |
|
return (EADDRNOTAVAIL); |
|
rp->rinp_rcb.rcb_laddr = (struct sockaddr *)&rp->rinp_laddr; |
|
rp->rinp_laddr = *addr; |
|
return (0); |
|
} |
|
case PRU_CONNECT: |
|
{ |
|
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
|
|
|
if (nam->m_len != sizeof(*addr)) |
case PRU_CONNECT: |
return (EINVAL); |
error = rip_connect(inp, nam); |
if (ifnet == 0) |
if (error) |
return (EADDRNOTAVAIL); |
break; |
if ((addr->sin_family != AF_INET) && |
|
(addr->sin_family != AF_IMPLINK)) |
|
return (EAFNOSUPPORT); |
|
rp->rinp_rcb.rcb_faddr = (struct sockaddr *)&rp->rinp_faddr; |
|
rp->rinp_faddr = *addr; |
|
soisconnected(so); |
soisconnected(so); |
|
break; |
|
|
|
case PRU_CONNECT2: |
|
error = EOPNOTSUPP; |
|
break; |
|
|
|
case PRU_DISCONNECT: |
|
soisdisconnected(so); |
|
rip_disconnect(inp); |
|
break; |
|
|
|
/* |
|
* Mark the connection as being incapable of further input. |
|
*/ |
|
case PRU_SHUTDOWN: |
|
socantsendmore(so); |
|
break; |
|
|
|
case PRU_RCVD: |
|
error = EOPNOTSUPP; |
|
break; |
|
|
|
/* |
|
* Ship a packet out. The appropriate raw output |
|
* routine handles any massaging necessary. |
|
*/ |
|
case PRU_SEND: |
|
if (control && control->m_len) { |
|
m_freem(control); |
|
m_freem(m); |
|
error = EINVAL; |
|
break; |
|
} |
|
{ |
|
if (nam) { |
|
if ((so->so_state & SS_ISCONNECTED) != 0) { |
|
error = EISCONN; |
|
goto die; |
|
} |
|
error = rip_connect(inp, nam); |
|
if (error) { |
|
die: |
|
m_freem(m); |
|
break; |
|
} |
|
} else { |
|
if ((so->so_state & SS_ISCONNECTED) == 0) { |
|
error = ENOTCONN; |
|
goto die; |
|
} |
|
} |
|
error = rip_output(m, inp); |
|
if (nam) |
|
rip_disconnect(inp); |
|
} |
|
break; |
|
|
|
case PRU_SENSE: |
|
/* |
|
* stat: don't bother with a blocksize. |
|
*/ |
|
splx(s); |
return (0); |
return (0); |
} |
|
|
case PRU_RCVOOB: |
|
error = EOPNOTSUPP; |
|
break; |
|
|
|
case PRU_SENDOOB: |
|
m_freem(control); |
|
m_freem(m); |
|
error = EOPNOTSUPP; |
|
break; |
|
|
|
case PRU_SOCKADDR: |
|
in_setsockaddr(inp, nam); |
|
break; |
|
|
|
case PRU_PEERADDR: |
|
in_setpeeraddr(inp, nam); |
|
break; |
|
|
|
default: |
|
panic("rip_usrreq"); |
} |
} |
error = raw_usrreq(so, req, m, nam, control); |
|
|
|
if (error && (req == PRU_ATTACH) && so->so_pcb) |
release: |
free(so->so_pcb, M_PCB); |
splx(s); |
return (error); |
return (error); |
} |
} |