version 1.36, 1997/01/11 05:21:13 |
version 1.59, 2001/11/13 00:32:40 |
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/* $NetBSD$ */ |
/* $NetBSD$ */ |
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/* |
/* |
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
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* 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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/* |
* Copyright (c) 1982, 1986, 1988, 1993 |
* Copyright (c) 1982, 1986, 1988, 1993 |
* The Regents of the University of California. All rights reserved. |
* The Regents of the University of California. All rights reserved. |
* |
* |
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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 8.2 (Berkeley) 1/4/94 |
* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
*/ |
*/ |
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#include <sys/cdefs.h> |
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__KERNEL_RCSID(0, "$NetBSD$"); |
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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 <netinet/ip.h> |
#include <netinet/ip.h> |
#include <netinet/ip_var.h> |
#include <netinet/ip_var.h> |
#include <netinet/ip_mroute.h> |
#include <netinet/ip_mroute.h> |
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#include <netinet/ip_icmp.h> |
#include <netinet/in_pcb.h> |
#include <netinet/in_pcb.h> |
#include <netinet/in_var.h> |
#include <netinet/in_var.h> |
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#include <machine/stdarg.h> |
#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; |
struct inpcbtable rawcbtable; |
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int rip_bind __P((struct inpcb *, struct mbuf *)); |
int rip_bind __P((struct inpcb *, struct mbuf *)); |
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in_pcbinit(&rawcbtable, 1, 1); |
in_pcbinit(&rawcbtable, 1, 1); |
} |
} |
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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 |
* for raw_input routine, then pass them along with |
* for raw_input routine, then pass them along with |
Line 98 rip_input(m, va_alist) |
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Line 140 rip_input(m, va_alist) |
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va_dcl |
va_dcl |
#endif |
#endif |
{ |
{ |
register struct ip *ip = mtod(m, struct ip *); |
int off, proto; |
register struct inpcb *inp; |
struct ip *ip = mtod(m, struct ip *); |
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struct inpcb *inp; |
struct inpcb *last = 0; |
struct inpcb *last = 0; |
struct mbuf *opts = 0; |
struct mbuf *opts = 0; |
struct sockaddr_in ripsrc; |
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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ripsrc.sin_family = AF_INET; |
ripsrc.sin_family = AF_INET; |
ripsrc.sin_len = sizeof(struct sockaddr_in); |
ripsrc.sin_len = sizeof(struct sockaddr_in); |
Line 110 rip_input(m, va_alist) |
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Line 159 rip_input(m, va_alist) |
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ripsrc.sin_port = 0; |
ripsrc.sin_port = 0; |
bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); |
bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); |
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for (inp = rawcbtable.inpt_queue.cqh_first; |
/* |
inp != (struct inpcb *)&rawcbtable.inpt_queue; |
* XXX Compatibility: programs using raw IP expect ip_len |
inp = inp->inp_queue.cqe_next) { |
* XXX to have the header length subtracted. |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != ip->ip_p) |
*/ |
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ip->ip_len -= ip->ip_hl << 2; |
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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) |
continue; |
continue; |
if (!in_nullhost(inp->inp_laddr) && |
if (!in_nullhost(inp->inp_laddr) && |
!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
Line 123 rip_input(m, va_alist) |
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Line 176 rip_input(m, va_alist) |
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continue; |
continue; |
if (last) { |
if (last) { |
struct mbuf *n; |
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*/ |
if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) { |
if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) { |
if (last->inp_flags & INP_CONTROLOPTS || |
if (last->inp_flags & INP_CONTROLOPTS || |
last->inp_socket->so_options & SO_TIMESTAMP) |
last->inp_socket->so_options & SO_TIMESTAMP) |
Line 135 rip_input(m, va_alist) |
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Line 196 rip_input(m, va_alist) |
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m_freem(opts); |
m_freem(opts); |
} else |
} else |
sorwakeup(last->inp_socket); |
sorwakeup(last->inp_socket); |
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opts = NULL; |
} |
} |
} |
} |
last = inp; |
last = inp; |
} |
} |
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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++; |
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ipstat.ips_delivered--; |
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/* do not inject data to pcb */ |
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} else |
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#endif /*IPSEC*/ |
if (last) { |
if (last) { |
if (last->inp_flags & INP_CONTROLOPTS || |
if (last->inp_flags & INP_CONTROLOPTS || |
last->inp_socket->so_options & SO_TIMESTAMP) |
last->inp_socket->so_options & SO_TIMESTAMP) |
Line 151 rip_input(m, va_alist) |
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Line 222 rip_input(m, va_alist) |
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} else |
} else |
sorwakeup(last->inp_socket); |
sorwakeup(last->inp_socket); |
} else { |
} else { |
m_freem(m); |
if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
ipstat.ips_noproto++; |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
ipstat.ips_delivered--; |
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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/* |
/* |
Line 170 rip_output(m, va_alist) |
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Line 246 rip_output(m, va_alist) |
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va_dcl |
va_dcl |
#endif |
#endif |
{ |
{ |
register struct inpcb *inp; |
struct inpcb *inp; |
register struct ip *ip; |
struct ip *ip; |
struct mbuf *opts; |
struct mbuf *opts; |
int flags; |
int flags; |
va_list ap; |
va_list ap; |
Line 181 rip_output(m, va_alist) |
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Line 257 rip_output(m, va_alist) |
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va_end(ap); |
va_end(ap); |
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flags = |
flags = |
(inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; |
(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. |
Line 208 rip_output(m, va_alist) |
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Line 285 rip_output(m, va_alist) |
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return (EMSGSIZE); |
return (EMSGSIZE); |
} |
} |
ip = mtod(m, struct ip *); |
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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} |
if (ip->ip_id == 0) |
if (ip->ip_id == 0) |
ip->ip_id = htons(ip_id++); |
ip->ip_id = htons(ip_id++); |
opts = NULL; |
opts = NULL; |
Line 215 rip_output(m, va_alist) |
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Line 296 rip_output(m, va_alist) |
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flags |= IP_RAWOUTPUT; |
flags |= IP_RAWOUTPUT; |
ipstat.ips_rawout++; |
ipstat.ips_rawout++; |
} |
} |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions)); |
#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; |
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} |
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#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 228 rip_ctloutput(op, so, level, optname, m) |
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Line 315 rip_ctloutput(op, so, level, optname, m) |
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int level, optname; |
int level, optname; |
struct mbuf **m; |
struct mbuf **m; |
{ |
{ |
register struct inpcb *inp = sotoinpcb(so); |
struct inpcb *inp = sotoinpcb(so); |
int error = 0; |
int error = 0; |
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if (level != IPPROTO_IP) { |
if (level != IPPROTO_IP) { |
Line 303 rip_bind(inp, nam) |
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Line 390 rip_bind(inp, nam) |
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if (nam->m_len != sizeof(*addr)) |
if (nam->m_len != sizeof(*addr)) |
return (EINVAL); |
return (EINVAL); |
if (ifnet.tqh_first == 0) |
if (TAILQ_FIRST(&ifnet) == 0) |
return (EADDRNOTAVAIL); |
return (EADDRNOTAVAIL); |
if (addr->sin_family != AF_INET && |
if (addr->sin_family != AF_INET && |
addr->sin_family != AF_IMPLINK) |
addr->sin_family != AF_IMPLINK) |
Line 324 rip_connect(inp, nam) |
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Line 411 rip_connect(inp, nam) |
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if (nam->m_len != sizeof(*addr)) |
if (nam->m_len != sizeof(*addr)) |
return (EINVAL); |
return (EINVAL); |
if (ifnet.tqh_first == 0) |
if (TAILQ_FIRST(&ifnet) == 0) |
return (EADDRNOTAVAIL); |
return (EADDRNOTAVAIL); |
if (addr->sin_family != AF_INET && |
if (addr->sin_family != AF_INET && |
addr->sin_family != AF_IMPLINK) |
addr->sin_family != AF_IMPLINK) |
Line 347 u_long rip_recvspace = RIPRCVQ; |
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Line 434 u_long rip_recvspace = RIPRCVQ; |
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/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
rip_usrreq(so, req, m, nam, control, p) |
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; |
struct proc *p; |
struct proc *p; |
{ |
{ |
register struct inpcb *inp; |
struct inpcb *inp; |
int s; |
int s; |
register int error = 0; |
int error = 0; |
#ifdef MROUTING |
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
#endif |
#endif |
Line 363 rip_usrreq(so, req, m, nam, control, p) |
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Line 450 rip_usrreq(so, req, m, nam, control, p) |
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return (in_control(so, (long)m, (caddr_t)nam, |
return (in_control(so, (long)m, (caddr_t)nam, |
(struct ifnet *)control, p)); |
(struct ifnet *)control, p)); |
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if (req == PRU_PURGEIF) { |
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in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
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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(); |
s = splsoftnet(); |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |