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- /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
- /*
- * Copyright (c) 1982, 1986, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)ip_var.h 8.2 (Berkeley) 1/9/95
- */
-
- #ifndef _NETINET_IP_VAR_H_
- #define _NETINET_IP_VAR_H_
-
- /*
- * Overlay for ip header used by other protocols (tcp, udp).
- */
- struct ipovly {
- u_char ih_x1[9]; /* (unused) */
- u_char ih_pr; /* protocol */
- u_short ih_len; /* protocol length */
- struct in_addr ih_src; /* source internet address */
- struct in_addr ih_dst; /* destination internet address */
- };
-
- /*
- * Ip reassembly queue structure. Each fragment
- * being reassembled is attached to one of these structures.
- * They are timed out after ipq_ttl drops to 0, and may also
- * be reclaimed if memory becomes tight.
- */
- struct ipq {
- struct ipq *next,*prev; /* to other reass headers */
- u_char ipq_ttl; /* time for reass q to live */
- u_char ipq_p; /* protocol of this fragment */
- u_short ipq_id; /* sequence id for reassembly */
- struct mbuf *ipq_frags; /* to ip headers of fragments */
- struct in_addr ipq_src,ipq_dst;
- u_long reserved[4]; /* for future use */
- #if IPDIVERT
- u_short ipq_divert; /* divert protocol port */
- u_short ipq_div_cookie; /* divert protocol cookie */
- #endif
- };
-
- /*
- * Structure stored in mbuf in inpcb.ip_options
- * and passed to ip_output when ip options are in use.
- * The actual length of the options (including ipopt_dst)
- * is in m_len.
- */
- #define MAX_IPOPTLEN 40
-
- struct ipoption {
- struct in_addr ipopt_dst; /* first-hop dst if source routed */
- char ipopt_list[MAX_IPOPTLEN]; /* options proper */
- };
-
- /*
- * Structure attached to inpcb.ip_moptions and
- * passed to ip_output when IP multicast options are in use.
- */
- struct ip_moptions {
- struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
- u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
- u_char imo_multicast_loop; /* 1 => hear sends if a member */
- u_short imo_num_memberships; /* no. memberships this socket */
- struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
- u_long imo_multicast_vif; /* vif num outgoing multicasts */
- };
-
- struct ipstat {
- u_long ips_total; /* total packets received */
- u_long ips_badsum; /* checksum bad */
- u_long ips_tooshort; /* packet too short */
- u_long ips_toosmall; /* not enough data */
- u_long ips_badhlen; /* ip header length < data size */
- u_long ips_badlen; /* ip length < ip header length */
- u_long ips_fragments; /* fragments received */
- u_long ips_fragdropped; /* frags dropped (dups, out of space) */
- u_long ips_fragtimeout; /* fragments timed out */
- u_long ips_forward; /* packets forwarded */
- u_long ips_fastforward; /* packets fast forwarded */
- u_long ips_cantforward; /* packets rcvd for unreachable dest */
- u_long ips_redirectsent; /* packets forwarded on same net */
- u_long ips_noproto; /* unknown or unsupported protocol */
- u_long ips_delivered; /* datagrams delivered to upper level*/
- u_long ips_localout; /* total ip packets generated here */
- u_long ips_odropped; /* lost packets due to nobufs, etc. */
- u_long ips_reassembled; /* total packets reassembled ok */
- u_long ips_fragmented; /* datagrams successfully fragmented */
- u_long ips_ofragments; /* output fragments created */
- u_long ips_cantfrag; /* don't fragment flag was set, etc. */
- u_long ips_badoptions; /* error in option processing */
- u_long ips_noroute; /* packets discarded due to no route */
- u_long ips_badvers; /* ip version != 4 */
- u_long ips_rawout; /* total raw ip packets generated */
- u_long ips_toolong; /* ip length > max ip packet size */
- u_long ips_notmember; /* multicasts for unregistered grps */
- u_long ips_nogif; /* no match gif found */
- };
-
- #if KERNEL
-
- /* flags passed to ip_output as last parameter */
- #define IP_FORWARDING 0x1 /* most of ip header exists */
- #define IP_RAWOUTPUT 0x2 /* raw ip header exists */
- #define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
- #define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
-
- struct ip;
- struct inpcb;
- struct route;
- struct sockopt;
-
- extern struct ipstat ipstat;
- extern u_short ip_id; /* ip packet ctr, for ids */
- extern int ip_defttl; /* default IP ttl */
- extern int ipforwarding; /* ip forwarding */
- extern struct protosw *ip_protox[];
- extern struct socket *ip_rsvpd; /* reservation protocol daemon */
- extern struct socket *ip_mrouter; /* multicast routing daemon */
- extern int (*legal_vif_num) __P((int));
- extern u_long (*ip_mcast_src) __P((int));
- extern int rsvp_on;
- extern struct pr_usrreqs rip_usrreqs;
-
- int ip_ctloutput __P((struct socket *, struct sockopt *sopt));
- void ip_drain __P((void));
- void ip_freemoptions __P((struct ip_moptions *));
- void ip_init __P((void));
- extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *,
- struct ip_moptions *));
- int ip_output __P((struct mbuf *,
- struct mbuf *, struct route *, int, struct ip_moptions *));
- void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *,
- struct mbuf *));
- void ip_slowtimo __P((void));
- struct mbuf *
- ip_srcroute __P((void));
- void ip_stripoptions __P((struct mbuf *, struct mbuf *));
- int rip_ctloutput __P((struct socket *, struct sockopt *));
- void rip_ctlinput __P((int, struct sockaddr *, void *));
- void rip_init __P((void));
- void rip_input __P((struct mbuf *, int));
- int rip_output __P((struct mbuf *, struct socket *, u_long));
- void ipip_input __P((struct mbuf *, int));
- void rsvp_input __P((struct mbuf *, int));
- int ip_rsvp_init __P((struct socket *));
- int ip_rsvp_done __P((void));
- int ip_rsvp_vif_init __P((struct socket *, struct sockopt *));
- int ip_rsvp_vif_done __P((struct socket *, struct sockopt *));
- void ip_rsvp_force_done __P((struct socket *));
-
- #if IPDIVERT
- void div_init __P((void));
- void div_input __P((struct mbuf *, int));
- extern struct pr_usrreqs div_usrreqs;
- extern u_short ip_divert_port;
- extern u_short ip_divert_cookie;
- #endif
-
- extern struct sockaddr_in *ip_fw_fwd_addr;
-
- #endif /* KERNEL */
-
- #endif /* !_NETINET_IP_VAR_H_ */
-