version 1.42.6.1, 1999/06/28 06:37:01 |
version 1.56.2.4, 2002/09/06 08:49:18 |
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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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* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
* @(#)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" |
#include "opt_mrouting.h" |
#include "opt_mrouting.h" |
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#include <sys/param.h> |
#include <sys/param.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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struct inpcbtable rawcbtable; |
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)))); |
int rip_bind __P((struct inpcb *, struct mbuf *)); |
int rip_bind __P((struct inpcb *, struct mbuf *)); |
int rip_connect __P((struct inpcb *, struct mbuf *)); |
int rip_connect __P((struct inpcb *, struct mbuf *)); |
void rip_disconnect __P((struct inpcb *)); |
void rip_disconnect __P((struct inpcb *)); |
Line 107 rip_input(m, va_alist) |
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Line 143 rip_input(m, va_alist) |
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#endif |
#endif |
{ |
{ |
int off, proto; |
int off, proto; |
register struct ip *ip = mtod(m, struct ip *); |
struct ip *ip = mtod(m, struct ip *); |
register struct inpcb *inp; |
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; |
Line 127 rip_input(m, va_alist) |
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Line 163 rip_input(m, va_alist) |
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/* |
/* |
* XXX Compatibility: programs using raw IP expect ip_len |
* XXX Compatibility: programs using raw IP expect ip_len |
* XXX to have the header length subtracted. |
* 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. |
*/ |
*/ |
ip->ip_len -= ip->ip_hl << 2; |
ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); |
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NTOHS(ip->ip_off); |
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for (inp = rawcbtable.inpt_queue.cqh_first; |
CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) { |
inp != (struct inpcb *)&rawcbtable.inpt_queue; |
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inp = inp->inp_queue.cqe_next) { |
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if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
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) && |
Line 144 rip_input(m, va_alist) |
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Line 180 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 161 rip_input(m, va_alist) |
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Line 205 rip_input(m, va_alist) |
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} |
} |
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 173 rip_input(m, va_alist) |
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Line 226 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); |
} |
} |
return; |
return; |
} |
} |
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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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} |
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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. |
Line 193 rip_output(m, va_alist) |
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Line 311 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 219 rip_output(m, va_alist) |
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Line 337 rip_output(m, va_alist) |
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M_PREPEND(m, sizeof(struct ip), M_WAIT); |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
ip->ip_tos = 0; |
ip->ip_tos = 0; |
ip->ip_off = 0; |
ip->ip_off = 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 = inp->inp_faddr; |
ip->ip_dst = inp->inp_faddr; |
ip->ip_ttl = MAXTTL; |
ip->ip_ttl = MAXTTL; |
Line 232 rip_output(m, va_alist) |
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Line 350 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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/* XXX userland passes ip_len and ip_off in host order */ |
if (m->m_pkthdr.len != ip->ip_len) { |
if (m->m_pkthdr.len != ip->ip_len) { |
m_freem(m); |
m_freem(m); |
return (EINVAL); |
return (EINVAL); |
} |
} |
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HTONS(ip->ip_len); |
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HTONS(ip->ip_off); |
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 244 rip_output(m, va_alist) |
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Line 365 rip_output(m, va_alist) |
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ipstat.ips_rawout++; |
ipstat.ips_rawout++; |
} |
} |
#ifdef IPSEC |
#ifdef IPSEC |
m->m_pkthdr.rcvif = (struct ifnet *)inp->inp_socket; /*XXX*/ |
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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} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, &inp->inp_errormtu)); |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
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&inp->inp_errormtu)); |
} |
} |
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/* |
/* |
Line 259 rip_ctloutput(op, so, level, optname, m) |
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Line 384 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 334 rip_bind(inp, nam) |
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Line 459 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 355 rip_connect(inp, nam) |
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Line 480 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 378 u_long rip_recvspace = RIPRCVQ; |
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Line 503 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 394 rip_usrreq(so, req, m, nam, control, p) |
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Line 519 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 |
Line 426 rip_usrreq(so, req, m, nam, control, p) |
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Line 558 rip_usrreq(so, req, m, nam, control, p) |
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break; |
break; |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
inp->inp_ip.ip_p = (long)nam; |
inp->inp_ip.ip_p = (long)nam; |
#ifdef IPSEC |
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error = ipsec_init_policy(&inp->inp_sp); |
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#endif /*IPSEC*/ |
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break; |
break; |
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case PRU_DETACH: |
case PRU_DETACH: |