version 1.1, 1993/03/21 09:45:37 |
version 1.68, 2003/05/27 22:36:38 |
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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. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
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* 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 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. |
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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. |
* 3. All advertising materials mentioning features or use of this software |
* 3. All advertising materials mentioning features or use of this software |
* must display the following acknowledgement: |
* must display the following acknowledgement: |
* This product includes software developed by the University of |
* This product includes software developed by the University of |
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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. |
* |
* |
* @(#)raw_ip.c 7.8 (Berkeley) 7/25/90 |
* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
*/ |
*/ |
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#include "param.h" |
#include <sys/cdefs.h> |
#include "malloc.h" |
__KERNEL_RCSID(0, "$NetBSD$"); |
#include "mbuf.h" |
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#include "socket.h" |
#include "opt_ipsec.h" |
#include "protosw.h" |
#include "opt_mrouting.h" |
#include "socketvar.h" |
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#include "errno.h" |
#include <sys/param.h> |
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#include <sys/malloc.h> |
#include "../net/if.h" |
#include <sys/mbuf.h> |
#include "../net/route.h" |
#include <sys/socket.h> |
#include "../net/raw_cb.h" |
#include <sys/protosw.h> |
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#include <sys/socketvar.h> |
#include "in.h" |
#include <sys/errno.h> |
#include "in_systm.h" |
#include <sys/systm.h> |
#include "ip.h" |
#include <sys/proc.h> |
#include "ip_var.h" |
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#include "in_pcb.h" |
#include <net/if.h> |
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#include <net/route.h> |
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#include <netinet/in.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/ip.h> |
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#include <netinet/ip_var.h> |
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#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_pcbnotify __P((struct inpcbtable *, struct in_addr, |
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struct in_addr, int, int, void (*) __P((struct inpcb *, int)))); |
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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. |
*/ |
*/ |
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struct sockaddr_in ripdst = { sizeof(ripdst), AF_INET }; |
/* |
struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; |
* Initialize raw connection block q. |
struct sockproto ripproto = { PF_INET }; |
*/ |
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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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/* |
/* |
* Setup generic address and protocol structures |
* Setup generic address and protocol structures |
* for raw_input routine, then pass them along with |
* for raw_input routine, then pass them along with |
* mbuf chain. |
* mbuf chain. |
*/ |
*/ |
rip_input(m) |
void |
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#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 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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(void)va_arg(ap, int); /* ignore value, advance ap */ |
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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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/* |
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* XXX Compatibility: programs using raw IP expect ip_len |
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* XXX to have the header length subtracted, and in host order. |
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* XXX ip_off is also expected to be host order. |
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*/ |
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ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); |
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NTOHS(ip->ip_off); |
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CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) { |
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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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#ifdef IPSEC |
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/* check AH/ESP integrity. */ |
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if (ipsec4_in_reject_so(m, last->inp_socket)) { |
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ipsecstat.in_polvio++; |
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/* do not inject data to pcb */ |
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} else |
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#endif /*IPSEC*/ |
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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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#ifdef IPSEC |
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/* check AH/ESP integrity. */ |
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if (last && ipsec4_in_reject_so(m, last->inp_socket)) { |
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m_freem(m); |
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ipsecstat.in_polvio++; |
ipstat.ips_delivered--; |
ipstat.ips_delivered--; |
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/* do not inject data to pcb */ |
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} else |
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#endif /*IPSEC*/ |
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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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} |
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int |
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rip_pcbnotify(table, faddr, laddr, proto, errno, notify) |
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struct inpcbtable *table; |
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struct in_addr faddr, laddr; |
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int proto; |
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int errno; |
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void (*notify) __P((struct inpcb *, int)); |
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{ |
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struct inpcb *inp, *ninp; |
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int nmatch; |
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nmatch = 0; |
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for (inp = CIRCLEQ_FIRST(&table->inpt_queue); |
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inp != (struct inpcb *)&table->inpt_queue; |
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inp = ninp) { |
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ninp = 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_hosteq(inp->inp_faddr, faddr) && |
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in_hosteq(inp->inp_laddr, laddr)) { |
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(*notify)(inp, errno); |
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nmatch++; |
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} |
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} |
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return nmatch; |
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} |
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void * |
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rip_ctlinput(cmd, sa, v) |
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int cmd; |
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struct sockaddr *sa; |
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void *v; |
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{ |
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struct ip *ip = v; |
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void (*notify) __P((struct inpcb *, int)) = in_rtchange; |
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int errno; |
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if (sa->sa_family != AF_INET || |
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sa->sa_len != sizeof(struct sockaddr_in)) |
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return NULL; |
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if ((unsigned)cmd >= PRC_NCMDS) |
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return NULL; |
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errno = inetctlerrmap[cmd]; |
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if (PRC_IS_REDIRECT(cmd)) |
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notify = in_rtchange, ip = 0; |
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else if (cmd == PRC_HOSTDEAD) |
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ip = 0; |
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else if (errno == 0) |
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return NULL; |
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if (ip) { |
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rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr, |
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ip->ip_src, ip->ip_p, errno, notify); |
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/* XXX mapped address case */ |
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} else |
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in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno, |
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notify); |
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return NULL; |
} |
} |
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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)) |
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; |
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) { |
else { |
m_freem(m); |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
return (EMSGSIZE); |
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} |
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M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); |
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if (!m) |
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return (ENOBUFS); |
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 = htons(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 = htons(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; |
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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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/* |
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* If the mbuf is read-only, we need to allocate |
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* a new mbuf for the header, since we need to |
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* modify the header. |
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*/ |
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if (M_READONLY(m)) { |
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int hlen = ip->ip_hl << 2; |
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m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); |
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if (m == NULL) |
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return (ENOMEM); /* XXX */ |
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ip = mtod(m, struct ip *); |
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} |
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/* XXX userland passes ip_len and ip_off in host order */ |
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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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HTONS(ip->ip_len); |
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HTONS(ip->ip_off); |
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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++; |
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} |
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#ifdef IPSEC |
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if (ipsec_setsocket(m, inp->inp_socket) != 0) { |
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m_freem(m); |
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return ENOBUFS; |
} |
} |
return (ip_output(m, |
#endif /*IPSEC*/ |
(rp->rinp_flags & RINPF_HDRINCL)? (struct mbuf *)0: rp->rinp_options, |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
&rp->rinp_route, |
&inp->inp_errormtu)); |
(so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST)); |
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} |
} |
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/* |
/* |
* Raw IP socket option processing. |
* Raw IP socket option processing. |
*/ |
*/ |
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int |
rip_ctloutput(op, so, level, optname, m) |
rip_ctloutput(op, so, level, optname, m) |
int op; |
int op; |
struct socket *so; |
struct socket *so; |
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 |
break; |
rp->rinp_flags &= ~RINPF_HDRINCL; |
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#ifdef MROUTING |
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case MRT_INIT: |
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case MRT_DONE: |
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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); |
break; |
break; |
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#endif |
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default: |
default: |
error = EINVAL; |
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, MT_SOOPTS); |
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MCLAIM((*m), so->so_mowner); |
(*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; |
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break; |
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#ifdef MROUTING |
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case MRT_VERSION: |
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case MRT_ASSERT: |
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error = ip_mrouter_get(so, optname, m); |
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 (TAILQ_FIRST(&ifnet) == 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) |
|
struct inpcb *inp; |
|
struct mbuf *nam; |
|
{ |
|
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
|
|
|
if (nam->m_len != sizeof(*addr)) |
|
return (EINVAL); |
|
if (TAILQ_FIRST(&ifnet) == 0) |
|
return (EADDRNOTAVAIL); |
|
if (addr->sin_family != AF_INET && |
|
addr->sin_family != AF_IMPLINK) |
|
return (EAFNOSUPPORT); |
|
inp->inp_faddr = addr->sin_addr; |
|
return (0); |
|
} |
|
|
|
void |
|
rip_disconnect(inp) |
|
struct inpcb *inp; |
|
{ |
|
|
|
inp->inp_faddr = zeroin_addr; |
|
} |
|
|
|
u_long rip_sendspace = RIPSNDQ; |
|
u_long rip_recvspace = RIPRCVQ; |
|
|
/*ARGSUSED*/ |
/*ARGSUSED*/ |
rip_usrreq(so, req, m, nam, rights, control) |
int |
register struct socket *so; |
rip_usrreq(so, req, m, nam, control, p) |
|
struct socket *so; |
int req; |
int req; |
struct mbuf *m, *nam, *rights, *control; |
struct mbuf *m, *nam, *control; |
|
struct proc *p; |
{ |
{ |
register int error = 0; |
struct inpcb *inp; |
register struct raw_inpcb *rp = sotorawinpcb(so); |
int s; |
|
int error = 0; |
|
#ifdef MROUTING |
|
extern struct socket *ip_mrouter; |
|
#endif |
|
|
|
if (req == PRU_CONTROL) |
|
return (in_control(so, (long)m, (caddr_t)nam, |
|
(struct ifnet *)control, p)); |
|
|
|
if (req == PRU_PURGEIF) { |
|
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
|
in_purgeif((struct ifnet *)control); |
|
in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
|
return (0); |
|
} |
|
|
|
s = splsoftnet(); |
|
inp = sotoinpcb(so); |
|
#ifdef DIAGNOSTIC |
|
if (req != PRU_SEND && req != PRU_SENDOOB && control) |
|
panic("rip_usrreq: unexpected control mbuf"); |
|
#endif |
|
if (inp == 0 && req != PRU_ATTACH) { |
|
error = EINVAL; |
|
goto release; |
|
} |
|
|
switch (req) { |
switch (req) { |
|
|
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; |
|
} |
|
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
|
error = soreserve(so, rip_sendspace, rip_recvspace); |
|
if (error) |
|
break; |
|
} |
|
error = in_pcballoc(so, &rawcbtable); |
|
if (error) |
|
break; |
|
inp = sotoinpcb(so); |
|
inp->inp_ip.ip_p = (long)nam; |
break; |
break; |
|
|
case PRU_DETACH: |
case PRU_DETACH: |
if (rp == 0) |
#ifdef MROUTING |
panic("rip_detach"); |
if (so == ip_mrouter) |
if (rp->rinp_options) |
ip_mrouter_done(); |
m_freem(rp->rinp_options); |
#endif |
if (rp->rinp_route.ro_rt) |
in_pcbdetach(inp); |
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); |
} |
} |