1994-05-24 10:09:53 +00:00
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/*
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* Copyright (c) 1982, 1986, 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.
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* 3. All advertising materials mentioning features or use of this software
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* 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
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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1995-09-21 18:04:43 +00:00
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* @(#)ip_var.h 8.2 (Berkeley) 1/9/95
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1999-08-28 01:08:13 +00:00
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* $FreeBSD$
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1994-05-24 10:09:53 +00:00
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*/
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1994-08-21 05:27:42 +00:00
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#ifndef _NETINET_IP_VAR_H_
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1996-10-15 16:54:47 +00:00
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#define _NETINET_IP_VAR_H_
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1994-08-21 05:27:42 +00:00
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1994-05-24 10:09:53 +00:00
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/*
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* Overlay for ip header used by other protocols (tcp, udp).
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*/
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struct ipovly {
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1998-08-24 07:47:39 +00:00
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u_char ih_x1[9]; /* (unused) */
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1994-05-24 10:09:53 +00:00
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u_char ih_pr; /* protocol */
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1996-10-25 17:57:53 +00:00
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u_short ih_len; /* protocol length */
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1994-05-24 10:09:53 +00:00
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struct in_addr ih_src; /* source internet address */
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struct in_addr ih_dst; /* destination internet address */
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};
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/*
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* Ip reassembly queue structure. Each fragment
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* being reassembled is attached to one of these structures.
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* They are timed out after ipq_ttl drops to 0, and may also
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* be reclaimed if memory becomes tight.
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*/
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struct ipq {
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struct ipq *next,*prev; /* to other reass headers */
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u_char ipq_ttl; /* time for reass q to live */
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u_char ipq_p; /* protocol of this fragment */
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u_short ipq_id; /* sequence id for reassembly */
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1998-08-24 07:47:39 +00:00
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struct mbuf *ipq_frags; /* to ip headers of fragments */
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1994-05-24 10:09:53 +00:00
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struct in_addr ipq_src,ipq_dst;
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1996-07-10 19:44:30 +00:00
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#ifdef IPDIVERT
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1999-12-06 00:43:07 +00:00
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u_int32_t ipq_div_info; /* ipfw divert port & flags */
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u_int16_t ipq_div_cookie; /* ipfw divert cookie */
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1996-07-10 19:44:30 +00:00
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#endif
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1994-05-24 10:09:53 +00:00
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};
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/*
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* Structure stored in mbuf in inpcb.ip_options
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* and passed to ip_output when ip options are in use.
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* The actual length of the options (including ipopt_dst)
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* is in m_len.
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*/
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#define MAX_IPOPTLEN 40
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struct ipoption {
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struct in_addr ipopt_dst; /* first-hop dst if source routed */
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char ipopt_list[MAX_IPOPTLEN]; /* options proper */
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};
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/*
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* Structure attached to inpcb.ip_moptions and
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* passed to ip_output when IP multicast options are in use.
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*/
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struct ip_moptions {
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struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
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u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
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u_char imo_multicast_loop; /* 1 => hear sends if a member */
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u_short imo_num_memberships; /* no. memberships this socket */
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struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
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1995-06-13 17:51:16 +00:00
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u_long imo_multicast_vif; /* vif num outgoing multicasts */
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1994-05-24 10:09:53 +00:00
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};
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struct ipstat {
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u_long ips_total; /* total packets received */
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u_long ips_badsum; /* checksum bad */
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u_long ips_tooshort; /* packet too short */
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u_long ips_toosmall; /* not enough data */
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u_long ips_badhlen; /* ip header length < data size */
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u_long ips_badlen; /* ip length < ip header length */
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u_long ips_fragments; /* fragments received */
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u_long ips_fragdropped; /* frags dropped (dups, out of space) */
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u_long ips_fragtimeout; /* fragments timed out */
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u_long ips_forward; /* packets forwarded */
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1998-05-19 14:04:36 +00:00
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u_long ips_fastforward; /* packets fast forwarded */
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1994-05-24 10:09:53 +00:00
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u_long ips_cantforward; /* packets rcvd for unreachable dest */
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u_long ips_redirectsent; /* packets forwarded on same net */
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u_long ips_noproto; /* unknown or unsupported protocol */
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u_long ips_delivered; /* datagrams delivered to upper level*/
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u_long ips_localout; /* total ip packets generated here */
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u_long ips_odropped; /* lost packets due to nobufs, etc. */
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u_long ips_reassembled; /* total packets reassembled ok */
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1996-01-30 23:02:38 +00:00
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u_long ips_fragmented; /* datagrams successfully fragmented */
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1994-05-24 10:09:53 +00:00
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u_long ips_ofragments; /* output fragments created */
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u_long ips_cantfrag; /* don't fragment flag was set, etc. */
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u_long ips_badoptions; /* error in option processing */
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u_long ips_noroute; /* packets discarded due to no route */
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u_long ips_badvers; /* ip version != 4 */
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u_long ips_rawout; /* total raw ip packets generated */
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1996-10-25 17:57:53 +00:00
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u_long ips_toolong; /* ip length > max ip packet size */
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1997-01-21 21:08:09 +00:00
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u_long ips_notmember; /* multicasts for unregistered grps */
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1999-11-05 14:41:39 +00:00
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u_long ips_nogif; /* no match gif found */
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1994-05-24 10:09:53 +00:00
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};
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#ifdef KERNEL
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1998-07-13 12:20:07 +00:00
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1994-05-24 10:09:53 +00:00
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/* flags passed to ip_output as last parameter */
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#define IP_FORWARDING 0x1 /* most of ip header exists */
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#define IP_RAWOUTPUT 0x2 /* raw ip header exists */
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#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
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#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
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1999-12-22 19:13:38 +00:00
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#define IP_SOCKINMRCVIF 0x100 /* IPSEC hack;
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* socket pointer in sending
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* packet's m_pkthdr.rcvif */
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1994-05-24 10:09:53 +00:00
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1998-08-23 03:07:17 +00:00
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struct ip;
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1996-11-12 10:02:09 +00:00
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struct inpcb;
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1996-10-15 16:54:47 +00:00
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struct route;
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1998-08-23 03:07:17 +00:00
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struct sockopt;
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1996-10-15 16:54:47 +00:00
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1994-08-18 22:36:09 +00:00
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extern struct ipstat ipstat;
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extern u_short ip_id; /* ip packet ctr, for ids */
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extern int ip_defttl; /* default IP ttl */
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1998-05-19 14:04:36 +00:00
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extern int ipforwarding; /* ip forwarding */
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1995-03-16 18:17:34 +00:00
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extern u_char ip_protox[];
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1994-09-06 22:42:31 +00:00
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extern struct socket *ip_rsvpd; /* reservation protocol daemon */
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extern struct socket *ip_mrouter; /* multicast routing daemon */
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1995-03-16 18:17:34 +00:00
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extern int (*legal_vif_num) __P((int));
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1995-06-13 17:51:16 +00:00
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extern u_long (*ip_mcast_src) __P((int));
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1995-07-26 18:05:16 +00:00
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extern int rsvp_on;
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1997-02-18 20:46:36 +00:00
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extern struct pr_usrreqs rip_usrreqs;
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1994-05-24 10:09:53 +00:00
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1998-08-23 03:07:17 +00:00
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int ip_ctloutput __P((struct socket *, struct sockopt *sopt));
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1994-05-24 10:09:53 +00:00
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void ip_drain __P((void));
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void ip_freemoptions __P((struct ip_moptions *));
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void ip_init __P((void));
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1994-09-14 03:10:15 +00:00
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extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *,
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1994-09-06 22:42:31 +00:00
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struct ip_moptions *));
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1994-05-24 10:09:53 +00:00
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int ip_output __P((struct mbuf *,
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struct mbuf *, struct route *, int, struct ip_moptions *));
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1996-11-11 04:56:32 +00:00
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void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *,
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struct mbuf *));
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1994-05-24 10:09:53 +00:00
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void ip_slowtimo __P((void));
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struct mbuf *
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ip_srcroute __P((void));
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void ip_stripoptions __P((struct mbuf *, struct mbuf *));
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1998-08-23 03:07:17 +00:00
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int rip_ctloutput __P((struct socket *, struct sockopt *));
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1997-02-13 19:46:45 +00:00
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void rip_ctlinput __P((int, struct sockaddr *, void *));
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1994-05-24 10:09:53 +00:00
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void rip_init __P((void));
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1999-12-22 19:13:38 +00:00
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void rip_input __P((struct mbuf *, int, int));
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1994-05-24 10:09:53 +00:00
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int rip_output __P((struct mbuf *, struct socket *, u_long));
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1999-12-22 19:13:38 +00:00
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void ipip_input __P((struct mbuf *, int, int));
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void rsvp_input __P((struct mbuf *, int, int));
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1995-02-14 06:25:17 +00:00
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int ip_rsvp_init __P((struct socket *));
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int ip_rsvp_done __P((void));
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1998-08-23 03:07:17 +00:00
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int ip_rsvp_vif_init __P((struct socket *, struct sockopt *));
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int ip_rsvp_vif_done __P((struct socket *, struct sockopt *));
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1995-06-28 05:13:02 +00:00
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void ip_rsvp_force_done __P((struct socket *));
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1995-03-16 16:25:55 +00:00
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1996-07-10 19:44:30 +00:00
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#ifdef IPDIVERT
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void div_init __P((void));
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1999-12-22 19:13:38 +00:00
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void div_input __P((struct mbuf *, int, int));
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1999-12-06 00:43:07 +00:00
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void divert_packet __P((struct mbuf *, int, int));
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1997-05-25 06:09:23 +00:00
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extern struct pr_usrreqs div_usrreqs;
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1999-12-06 00:43:07 +00:00
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extern u_int16_t ip_divert_cookie;
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1998-07-13 12:20:07 +00:00
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#endif
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1996-07-10 19:44:30 +00:00
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1998-07-06 03:20:19 +00:00
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extern struct sockaddr_in *ip_fw_fwd_addr;
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1996-10-15 16:54:47 +00:00
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#endif /* KERNEL */
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1994-08-21 05:27:42 +00:00
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1998-07-13 12:20:07 +00:00
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#endif /* !_NETINET_IP_VAR_H_ */
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