version 1.20, 1995/06/12 00:47:49 |
version 1.87.2.8, 2008/02/11 15:00:05 |
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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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* 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. |
* 3. All advertising materials mentioning features or use of this software |
* 3. Neither the name of the University nor the names of its contributors |
* must display the following acknowledgement: |
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* This product includes software developed by the University of |
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* California, Berkeley and its contributors. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
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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_inet.h" |
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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> |
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#include <sys/sysctl.h> |
#include <sys/malloc.h> |
#include <sys/malloc.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
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#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/errno.h> |
#include <sys/errno.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
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#include <sys/proc.h> |
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#include <sys/kauth.h> |
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#include <net/if.h> |
#include <net/if.h> |
#include <net/route.h> |
#include <net/route.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> |
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#include <netinet/in_proto.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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#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
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#include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ |
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#endif /* FAST_IPSEC*/ |
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struct inpcbtable rawcbtable; |
struct inpcbtable rawcbtable; |
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int rip_pcbnotify(struct inpcbtable *, struct in_addr, |
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struct in_addr, int, int, void (*)(struct inpcb *, int)); |
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int rip_bind(struct inpcb *, struct mbuf *); |
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int rip_connect(struct inpcb *, struct mbuf *); |
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void rip_disconnect(struct inpcb *); |
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/* |
/* |
* Nominal space allocated to a raw ip socket. |
* Nominal space allocated to a raw ip socket. |
*/ |
*/ |
Line 70 struct inpcbtable rawcbtable; |
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Line 125 struct inpcbtable rawcbtable; |
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* Initialize raw connection block q. |
* Initialize raw connection block q. |
*/ |
*/ |
void |
void |
rip_init() |
rip_init(void) |
{ |
{ |
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in_pcbinit(&rawcbtable); |
in_pcbinit(&rawcbtable, 1, 1); |
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} |
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static void |
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rip_sbappendaddr(struct inpcb *last, struct ip *ip, const struct sockaddr *sa, |
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int hlen, struct mbuf *opts, struct mbuf *n) |
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{ |
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if (last->inp_flags & INP_NOHEADER) |
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m_adj(n, hlen); |
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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, sa, 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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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 |
* mbuf chain. |
* mbuf chain. |
*/ |
*/ |
void |
void |
rip_input(m) |
rip_input(struct mbuf *m, ...) |
struct mbuf *m; |
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{ |
{ |
register struct ip *ip = mtod(m, struct ip *); |
int hlen, proto; |
register struct inpcb *inp; |
struct ip *ip = mtod(m, struct ip *); |
struct socket *last = 0; |
struct inpcb_hdr *inph; |
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struct inpcb *inp; |
ripsrc.sin_addr = ip->ip_src; |
struct inpcb *last = NULL; |
for (inp = rawcbtable.inpt_list.lh_first; inp != 0; |
struct mbuf *n, *opts = NULL; |
inp = inp->inp_list.le_next) { |
struct sockaddr_in ripsrc; |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != ip->ip_p) |
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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sockaddr_in_init(&ripsrc, &ip->ip_src, 0); |
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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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hlen = ip->ip_hl << 2; |
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ip->ip_len = ntohs(ip->ip_len) - hlen; |
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NTOHS(ip->ip_off); |
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CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
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inp = (struct inpcb *)inph; |
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if (inp->inp_af != AF_INET) |
continue; |
continue; |
if (inp->inp_laddr.s_addr && |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
inp->inp_laddr.s_addr != ip->ip_dst.s_addr) |
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continue; |
continue; |
if (inp->inp_faddr.s_addr && |
if (!in_nullhost(inp->inp_laddr) && |
inp->inp_faddr.s_addr != ip->ip_src.s_addr) |
!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
continue; |
continue; |
if (last) { |
if (!in_nullhost(inp->inp_faddr) && |
struct mbuf *n; |
!in_hosteq(inp->inp_faddr, ip->ip_src)) |
if (n = m_copy(m, 0, (int)M_COPYALL)) { |
continue; |
if (sbappendaddr(&last->so_rcv, |
if (last == NULL) |
sintosa(&ripsrc), n, |
; |
(struct mbuf *)0) == 0) |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* should notify about lost packet */ |
/* check AH/ESP integrity. */ |
m_freem(n); |
else if (ipsec4_in_reject_so(m, last->inp_socket)) { |
else |
ipsecstat.in_polvio++; |
sorwakeup(last); |
/* do not inject data to pcb */ |
} |
} |
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#endif /*IPSEC*/ |
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else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
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rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, |
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n); |
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opts = NULL; |
} |
} |
last = inp->inp_socket; |
last = inp; |
} |
} |
if (last) { |
#if defined(IPSEC) || defined(FAST_IPSEC) |
if (sbappendaddr(&last->so_rcv, sintosa(&ripsrc), m, |
/* check AH/ESP integrity. */ |
(struct mbuf *)0) == 0) |
if (last != NULL && ipsec4_in_reject_so(m, last->inp_socket)) { |
m_freem(m); |
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else |
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sorwakeup(last); |
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} else { |
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m_freem(m); |
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*/ |
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if (last != NULL) |
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rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); |
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else 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); |
ipstat.ips_noproto++; |
ipstat.ips_noproto++; |
ipstat.ips_delivered--; |
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(struct inpcbtable *table, |
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struct in_addr faddr, struct in_addr laddr, int proto, int errno, |
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void (*notify)(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 = (struct inpcb *)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 = (struct inpcb *)inp->inp_queue.cqe_next; |
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if (inp->inp_af != AF_INET) |
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continue; |
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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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return nmatch; |
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} |
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void * |
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rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) |
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{ |
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struct ip *ip = v; |
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void (*notify)(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, satocsin(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, satocsin(sa)->sin_addr, errno, |
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notify); |
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return NULL; |
} |
} |
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/* |
/* |
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* Tack on options user may have setup with control call. |
* Tack on options user may have setup with control call. |
*/ |
*/ |
int |
int |
rip_output(m, so, dst) |
rip_output(struct mbuf *m, ...) |
register struct mbuf *m; |
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struct socket *so; |
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u_long dst; |
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{ |
{ |
register struct ip *ip; |
struct inpcb *inp; |
register struct inpcb *inp = sotoinpcb(so); |
struct ip *ip; |
struct mbuf *opts; |
struct mbuf *opts; |
int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; |
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 ((inp->inp_flags & INP_HDRINCL) == 0) { |
if ((inp->inp_flags & INP_HDRINCL) == 0) { |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { |
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m_freem(m); |
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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 = inp->inp_ip.ip_p; |
ip->ip_p = inp->inp_ip.ip_p; |
ip->ip_len = m->m_pkthdr.len; |
ip->ip_len = htons(m->m_pkthdr.len); |
ip->ip_src = inp->inp_laddr; |
ip->ip_src = inp->inp_laddr; |
ip->ip_dst.s_addr = dst; |
ip->ip_dst = inp->inp_faddr; |
ip->ip_ttl = MAXTTL; |
ip->ip_ttl = MAXTTL; |
opts = inp->inp_options; |
opts = inp->inp_options; |
} else { |
} 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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} |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
if (ip->ip_id == 0) |
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ip->ip_id = htons(ip_id++); |
/* |
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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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|
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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 || m->m_pkthdr.len < IP_MINFRAGSIZE) |
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flags |= IP_NOIPNEWID; |
opts = NULL; |
opts = NULL; |
/* XXX prevent ip_output from overwriting header fields */ |
/* XXX prevent ip_output from overwriting header fields */ |
flags |= IP_RAWOUTPUT; |
flags |= IP_RAWOUTPUT; |
ipstat.ips_rawout++; |
ipstat.ips_rawout++; |
} |
} |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions)); |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
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inp->inp_socket, &inp->inp_errormtu)); |
} |
} |
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/* |
/* |
* Raw IP socket option processing. |
* Raw IP socket option processing. |
*/ |
*/ |
int |
int |
rip_ctloutput(op, so, level, optname, m) |
rip_ctloutput(int op, struct socket *so, int level, int optname, |
int op; |
struct mbuf **m) |
struct socket *so; |
{ |
int level, optname; |
struct inpcb *inp = sotoinpcb(so); |
struct mbuf **m; |
int error = 0; |
{ |
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register struct inpcb *inp = sotoinpcb(so); |
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register int error; |
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|
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if (level != IPPROTO_IP) { |
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if (m != 0 && *m != 0) |
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(void)m_free(*m); |
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return (EINVAL); |
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} |
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switch (optname) { |
if (level == SOL_SOCKET && optname == SO_NOHEADER) { |
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if (op == PRCO_GETOPT) { |
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*m = m_intopt(so, |
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(inp->inp_flags & INP_NOHEADER) ? 1 : 0); |
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return 0; |
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} else if (*m == NULL || (*m)->m_len != sizeof(int)) |
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error = EINVAL; |
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else if (*mtod(*m, int *)) { |
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inp->inp_flags &= ~INP_HDRINCL; |
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inp->inp_flags |= INP_NOHEADER; |
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} else |
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inp->inp_flags &= ~INP_NOHEADER; |
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goto free_m; |
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} else if (level != IPPROTO_IP) |
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return ip_ctloutput(op, so, level, optname, m); |
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switch (op) { |
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case PRCO_SETOPT: |
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switch (optname) { |
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case IP_HDRINCL: |
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if (*m == NULL || (*m)->m_len != sizeof(int)) |
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error = EINVAL; |
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else 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; |
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goto free_m; |
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case IP_HDRINCL: |
#ifdef MROUTING |
if (op == PRCO_SETOPT || op == PRCO_GETOPT) { |
case MRT_INIT: |
if (m == 0 || *m == 0 || (*m)->m_len < sizeof (int)) |
case MRT_DONE: |
return (EINVAL); |
case MRT_ADD_VIF: |
if (op == PRCO_SETOPT) { |
case MRT_DEL_VIF: |
if (*mtod(*m, int *)) |
case MRT_ADD_MFC: |
inp->inp_flags |= INP_HDRINCL; |
case MRT_DEL_MFC: |
else |
case MRT_ASSERT: |
inp->inp_flags &= ~INP_HDRINCL; |
case MRT_API_CONFIG: |
(void)m_free(*m); |
case MRT_ADD_BW_UPCALL: |
} else { |
case MRT_DEL_BW_UPCALL: |
(*m)->m_len = sizeof (int); |
error = ip_mrouter_set(so, optname, m); |
*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL; |
break; |
} |
#endif |
return (0); |
|
|
default: |
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error = ip_ctloutput(op, so, level, optname, m); |
|
break; |
} |
} |
break; |
break; |
|
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case MRT_INIT: |
case PRCO_GETOPT: |
case MRT_DONE: |
switch (optname) { |
case MRT_ADD_VIF: |
case IP_HDRINCL: |
case MRT_DEL_VIF: |
*m = m_intopt(so, inp->inp_flags & INP_HDRINCL ? 1 : 0); |
case MRT_ADD_MFC: |
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case MRT_DEL_MFC: |
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case MRT_VERSION: |
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case MRT_ASSERT: |
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#ifdef MROUTING |
|
switch (op) { |
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case PRCO_SETOPT: |
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error = ip_mrouter_set(optname, so, m); |
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break; |
break; |
case PRCO_GETOPT: |
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error = ip_mrouter_get(optname, so, m); |
#ifdef MROUTING |
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case MRT_VERSION: |
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case MRT_ASSERT: |
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case MRT_API_SUPPORT: |
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case MRT_API_CONFIG: |
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error = ip_mrouter_get(so, optname, m); |
break; |
break; |
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#endif |
|
|
default: |
default: |
error = EINVAL; |
error = ip_ctloutput(op, so, level, optname, m); |
break; |
break; |
} |
} |
return (error); |
break; |
#else |
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if (op == PRCO_SETOPT && *m) |
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m_free(*m); |
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return (EOPNOTSUPP); |
|
#endif |
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} |
} |
return (ip_ctloutput(op, so, level, optname, m)); |
return error; |
|
free_m: |
|
if (op == PRCO_SETOPT && *m != NULL) |
|
(void)m_free(*m); |
|
return error; |
|
} |
|
|
|
int |
|
rip_bind(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); |
|
if (!in_nullhost(addr->sin_addr) && |
|
ifa_ifwithaddr(sintosa(addr)) == 0) |
|
return (EADDRNOTAVAIL); |
|
inp->inp_laddr = addr->sin_addr; |
|
return (0); |
|
} |
|
|
|
int |
|
rip_connect(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(struct inpcb *inp) |
|
{ |
|
|
|
inp->inp_faddr = zeroin_addr; |
} |
} |
|
|
u_long rip_sendspace = RIPSNDQ; |
u_long rip_sendspace = RIPSNDQ; |
Line 244 u_long rip_recvspace = RIPRCVQ; |
|
Line 504 u_long rip_recvspace = RIPRCVQ; |
|
|
|
/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
rip_usrreq(so, req, m, nam, control) |
rip_usrreq(struct socket *so, int req, |
register struct socket *so; |
struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) |
int req; |
|
struct mbuf *m, *nam, *control; |
|
{ |
{ |
register int error = 0; |
struct inpcb *inp; |
register struct inpcb *inp = sotoinpcb(so); |
int s; |
|
int error = 0; |
#ifdef MROUTING |
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
#endif |
#endif |
|
|
|
if (req == PRU_CONTROL) |
|
return (in_control(so, (long)m, (void *)nam, |
|
(struct ifnet *)control, l)); |
|
|
|
s = splsoftnet(); |
|
|
|
if (req == PRU_PURGEIF) { |
|
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
|
in_purgeif((struct ifnet *)control); |
|
in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
|
splx(s); |
|
return (0); |
|
} |
|
|
|
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 (inp) |
if (inp != 0) { |
panic("rip_attach"); |
error = EISCONN; |
if ((so->so_state & SS_PRIV) == 0) { |
break; |
|
} |
|
|
|
if (l == NULL) { |
error = EACCES; |
error = EACCES; |
break; |
break; |
} |
} |
if ((error = soreserve(so, rip_sendspace, rip_recvspace)) || |
|
(error = in_pcballoc(so, &rawcbtable))) |
/* XXX: raw socket permissions are checked in socreate() */ |
|
|
|
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; |
break; |
inp = (struct inpcb *)so->so_pcb; |
inp = sotoinpcb(so); |
inp->inp_ip.ip_p = (long)nam; |
inp->inp_ip.ip_p = (long)nam; |
break; |
break; |
|
|
case PRU_DISCONNECT: |
|
if ((so->so_state & SS_ISCONNECTED) == 0) { |
|
error = ENOTCONN; |
|
break; |
|
} |
|
/* FALLTHROUGH */ |
|
case PRU_ABORT: |
|
soisdisconnected(so); |
|
/* FALLTHROUGH */ |
|
case PRU_DETACH: |
case PRU_DETACH: |
if (inp == 0) |
|
panic("rip_detach"); |
|
#ifdef MROUTING |
#ifdef MROUTING |
if (so == ip_mrouter) |
if (so == ip_mrouter) |
ip_mrouter_done(); |
ip_mrouter_done(); |
Line 290 rip_usrreq(so, req, m, nam, control) |
|
Line 574 rip_usrreq(so, req, m, nam, control) |
|
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: |
error = EINVAL; |
error = EOPNOTSUPP; |
break; |
|
} |
|
if ((ifnet.tqh_first == 0) || |
|
((addr->sin_family != AF_INET) && |
|
(addr->sin_family != AF_IMPLINK)) || |
|
(addr->sin_addr.s_addr && |
|
ifa_ifwithaddr(sintosa(addr)) == 0)) { |
|
error = EADDRNOTAVAIL; |
|
break; |
|
} |
|
inp->inp_laddr = addr->sin_addr; |
|
break; |
break; |
} |
|
case PRU_CONNECT: |
|
{ |
|
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
|
|
|
if (nam->m_len != sizeof(*addr)) { |
case PRU_CONNECT: |
error = EINVAL; |
error = rip_connect(inp, nam); |
break; |
if (error) |
} |
|
if (ifnet.tqh_first == 0) { |
|
error = EADDRNOTAVAIL; |
|
break; |
|
} |
|
if ((addr->sin_family != AF_INET) && |
|
(addr->sin_family != AF_IMPLINK)) { |
|
error = EAFNOSUPPORT; |
|
break; |
break; |
} |
|
inp->inp_faddr = addr->sin_addr; |
|
soisconnected(so); |
soisconnected(so); |
break; |
break; |
} |
|
|
|
case PRU_CONNECT2: |
case PRU_CONNECT2: |
error = EOPNOTSUPP; |
error = EOPNOTSUPP; |
break; |
break; |
|
|
|
case PRU_DISCONNECT: |
|
soisdisconnected(so); |
|
rip_disconnect(inp); |
|
break; |
|
|
/* |
/* |
* Mark the connection as being incapable of further input. |
* Mark the connection as being incapable of further input. |
*/ |
*/ |
Line 341 rip_usrreq(so, req, m, nam, control) |
|
Line 604 rip_usrreq(so, req, m, nam, control) |
|
socantsendmore(so); |
socantsendmore(so); |
break; |
break; |
|
|
|
case PRU_RCVD: |
|
error = EOPNOTSUPP; |
|
break; |
|
|
/* |
/* |
* Ship a packet out. The appropriate raw output |
* Ship a packet out. The appropriate raw output |
* routine handles any massaging necessary. |
* routine handles any massaging necessary. |
*/ |
*/ |
case PRU_SEND: |
case PRU_SEND: |
{ |
if (control && control->m_len) { |
register u_int32_t dst; |
m_freem(control); |
|
m_freem(m); |
if (so->so_state & SS_ISCONNECTED) { |
error = EINVAL; |
if (nam) { |
break; |
|
} |
|
{ |
|
if (nam) { |
|
if ((so->so_state & SS_ISCONNECTED) != 0) { |
error = EISCONN; |
error = EISCONN; |
|
goto die; |
|
} |
|
error = rip_connect(inp, nam); |
|
if (error) { |
|
die: |
|
m_freem(m); |
break; |
break; |
} |
} |
dst = inp->inp_faddr.s_addr; |
|
} else { |
} else { |
if (nam == NULL) { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
error = ENOTCONN; |
error = ENOTCONN; |
break; |
goto die; |
} |
} |
dst = mtod(nam, struct sockaddr_in *)->sin_addr.s_addr; |
|
} |
} |
error = rip_output(m, so, dst); |
error = rip_output(m, inp); |
m = NULL; |
if (nam) |
|
rip_disconnect(inp); |
|
} |
break; |
break; |
} |
|
|
|
case PRU_SENSE: |
case PRU_SENSE: |
/* |
/* |
* stat: don't bother with a blocksize. |
* stat: don't bother with a blocksize. |
*/ |
*/ |
|
splx(s); |
return (0); |
return (0); |
|
|
/* |
|
* Not supported. |
|
*/ |
|
case PRU_RCVOOB: |
case PRU_RCVOOB: |
case PRU_RCVD: |
error = EOPNOTSUPP; |
case PRU_LISTEN: |
break; |
case PRU_ACCEPT: |
|
case PRU_SENDOOB: |
case PRU_SENDOOB: |
|
m_freem(control); |
|
m_freem(m); |
error = EOPNOTSUPP; |
error = EOPNOTSUPP; |
break; |
break; |
|
|
Line 395 rip_usrreq(so, req, m, nam, control) |
|
Line 671 rip_usrreq(so, req, m, nam, control) |
|
default: |
default: |
panic("rip_usrreq"); |
panic("rip_usrreq"); |
} |
} |
if (m != NULL) |
|
m_freem(m); |
release: |
|
splx(s); |
return (error); |
return (error); |
} |
} |
|
|
|
SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") |
|
{ |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "net", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "inet", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "raw", |
|
SYSCTL_DESCR("Raw IPv4 settings"), |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_STRUCT, "pcblist", |
|
SYSCTL_DESCR("Raw IPv4 control block list"), |
|
sysctl_inpcblist, 0, &rawcbtable, 0, |
|
CTL_NET, PF_INET, IPPROTO_RAW, |
|
CTL_CREATE, CTL_EOL); |
|
} |