| | 1 | /* |
| | 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * The contents of this file constitute Original Code as defined in and |
| | 7 | * are subject to the Apple Public Source License Version 1.1 (the |
| | 8 | * "License"). You may not use this file except in compliance with the |
| | 9 | * License. Please obtain a copy of the License at |
| | 10 | * http://www.apple.com/publicsource and read it before using this file. |
| | 11 | * |
| | 12 | * This Original Code and all software distributed under the License are |
| | 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the |
| | 17 | * License for the specific language governing rights and limitations |
| | 18 | * under the License. |
| | 19 | * |
| | 20 | * @APPLE_LICENSE_HEADER_END@ |
| | 21 | */ |
| | 22 | /* |
| | 23 | * Copyright (c) 1982, 1986, 1993 |
| | 24 | * The Regents of the University of California. All rights reserved. |
| | 25 | * |
| | 26 | * Redistribution and use in source and binary forms, with or without |
| | 27 | * modification, are permitted provided that the following conditions |
| | 28 | * are met: |
| | 29 | * 1. Redistributions of source code must retain the above copyright |
| | 30 | * notice, this list of conditions and the following disclaimer. |
| | 31 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 32 | * notice, this list of conditions and the following disclaimer in the |
| | 33 | * documentation and/or other materials provided with the distribution. |
| | 34 | * 3. All advertising materials mentioning features or use of this software |
| | 35 | * must display the following acknowledgement: |
| | 36 | * This product includes software developed by the University of |
| | 37 | * California, Berkeley and its contributors. |
| | 38 | * 4. Neither the name of the University nor the names of its contributors |
| | 39 | * may be used to endorse or promote products derived from this software |
| | 40 | * without specific prior written permission. |
| | 41 | * |
| | 42 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| | 43 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 44 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 45 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| | 46 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 47 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 48 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 49 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 50 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 51 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 52 | * SUCH DAMAGE. |
| | 53 | * |
| | 54 | * @(#)ip_var.h 8.2 (Berkeley) 1/9/95 |
| | 55 | */ |
| | 56 | |
| | 57 | #ifndef _NETINET_IP_VAR_H_ |
| | 58 | #define _NETINET_IP_VAR_H_ |
| | 59 | |
| | 60 | /* |
| | 61 | * Overlay for ip header used by other protocols (tcp, udp). |
| | 62 | */ |
| | 63 | struct ipovly { |
| | 64 | u_char ih_x1[9]; /* (unused) */ |
| | 65 | u_char ih_pr; /* protocol */ |
| | 66 | u_short ih_len; /* protocol length */ |
| | 67 | struct in_addr ih_src; /* source internet address */ |
| | 68 | struct in_addr ih_dst; /* destination internet address */ |
| | 69 | }; |
| | 70 | |
| | 71 | /* |
| | 72 | * Ip reassembly queue structure. Each fragment |
| | 73 | * being reassembled is attached to one of these structures. |
| | 74 | * They are timed out after ipq_ttl drops to 0, and may also |
| | 75 | * be reclaimed if memory becomes tight. |
| | 76 | */ |
| | 77 | struct ipq { |
| | 78 | struct ipq *next,*prev; /* to other reass headers */ |
| | 79 | u_char ipq_ttl; /* time for reass q to live */ |
| | 80 | u_char ipq_p; /* protocol of this fragment */ |
| | 81 | u_short ipq_id; /* sequence id for reassembly */ |
| | 82 | struct mbuf *ipq_frags; /* to ip headers of fragments */ |
| | 83 | struct in_addr ipq_src,ipq_dst; |
| | 84 | u_long reserved[4]; /* for future use */ |
| | 85 | #if IPDIVERT |
| | 86 | u_short ipq_divert; /* divert protocol port */ |
| | 87 | u_short ipq_div_cookie; /* divert protocol cookie */ |
| | 88 | #endif |
| | 89 | }; |
| | 90 | |
| | 91 | /* |
| | 92 | * Structure stored in mbuf in inpcb.ip_options |
| | 93 | * and passed to ip_output when ip options are in use. |
| | 94 | * The actual length of the options (including ipopt_dst) |
| | 95 | * is in m_len. |
| | 96 | */ |
| | 97 | #define MAX_IPOPTLEN 40 |
| | 98 | |
| | 99 | struct ipoption { |
| | 100 | struct in_addr ipopt_dst; /* first-hop dst if source routed */ |
| | 101 | char ipopt_list[MAX_IPOPTLEN]; /* options proper */ |
| | 102 | }; |
| | 103 | |
| | 104 | /* |
| | 105 | * Structure attached to inpcb.ip_moptions and |
| | 106 | * passed to ip_output when IP multicast options are in use. |
| | 107 | */ |
| | 108 | struct ip_moptions { |
| | 109 | struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */ |
| | 110 | u_char imo_multicast_ttl; /* TTL for outgoing multicasts */ |
| | 111 | u_char imo_multicast_loop; /* 1 => hear sends if a member */ |
| | 112 | u_short imo_num_memberships; /* no. memberships this socket */ |
| | 113 | struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS]; |
| | 114 | u_long imo_multicast_vif; /* vif num outgoing multicasts */ |
| | 115 | }; |
| | 116 | |
| | 117 | struct ipstat { |
| | 118 | u_long ips_total; /* total packets received */ |
| | 119 | u_long ips_badsum; /* checksum bad */ |
| | 120 | u_long ips_tooshort; /* packet too short */ |
| | 121 | u_long ips_toosmall; /* not enough data */ |
| | 122 | u_long ips_badhlen; /* ip header length < data size */ |
| | 123 | u_long ips_badlen; /* ip length < ip header length */ |
| | 124 | u_long ips_fragments; /* fragments received */ |
| | 125 | u_long ips_fragdropped; /* frags dropped (dups, out of space) */ |
| | 126 | u_long ips_fragtimeout; /* fragments timed out */ |
| | 127 | u_long ips_forward; /* packets forwarded */ |
| | 128 | u_long ips_fastforward; /* packets fast forwarded */ |
| | 129 | u_long ips_cantforward; /* packets rcvd for unreachable dest */ |
| | 130 | u_long ips_redirectsent; /* packets forwarded on same net */ |
| | 131 | u_long ips_noproto; /* unknown or unsupported protocol */ |
| | 132 | u_long ips_delivered; /* datagrams delivered to upper level*/ |
| | 133 | u_long ips_localout; /* total ip packets generated here */ |
| | 134 | u_long ips_odropped; /* lost packets due to nobufs, etc. */ |
| | 135 | u_long ips_reassembled; /* total packets reassembled ok */ |
| | 136 | u_long ips_fragmented; /* datagrams successfully fragmented */ |
| | 137 | u_long ips_ofragments; /* output fragments created */ |
| | 138 | u_long ips_cantfrag; /* don't fragment flag was set, etc. */ |
| | 139 | u_long ips_badoptions; /* error in option processing */ |
| | 140 | u_long ips_noroute; /* packets discarded due to no route */ |
| | 141 | u_long ips_badvers; /* ip version != 4 */ |
| | 142 | u_long ips_rawout; /* total raw ip packets generated */ |
| | 143 | u_long ips_toolong; /* ip length > max ip packet size */ |
| | 144 | u_long ips_notmember; /* multicasts for unregistered grps */ |
| | 145 | u_long ips_nogif; /* no match gif found */ |
| | 146 | }; |
| | 147 | |
| | 148 | #if KERNEL |
| | 149 | |
| | 150 | /* flags passed to ip_output as last parameter */ |
| | 151 | #define IP_FORWARDING 0x1 /* most of ip header exists */ |
| | 152 | #define IP_RAWOUTPUT 0x2 /* raw ip header exists */ |
| | 153 | #define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */ |
| | 154 | #define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */ |
| | 155 | |
| | 156 | struct ip; |
| | 157 | struct inpcb; |
| | 158 | struct route; |
| | 159 | struct sockopt; |
| | 160 | |
| | 161 | extern struct ipstat ipstat; |
| | 162 | extern u_short ip_id; /* ip packet ctr, for ids */ |
| | 163 | extern int ip_defttl; /* default IP ttl */ |
| | 164 | extern int ipforwarding; /* ip forwarding */ |
| | 165 | extern struct protosw *ip_protox[]; |
| | 166 | extern struct socket *ip_rsvpd; /* reservation protocol daemon */ |
| | 167 | extern struct socket *ip_mrouter; /* multicast routing daemon */ |
| | 168 | extern int (*legal_vif_num) __P((int)); |
| | 169 | extern u_long (*ip_mcast_src) __P((int)); |
| | 170 | extern int rsvp_on; |
| | 171 | extern struct pr_usrreqs rip_usrreqs; |
| | 172 | |
| | 173 | int ip_ctloutput __P((struct socket *, struct sockopt *sopt)); |
| | 174 | void ip_drain __P((void)); |
| | 175 | void ip_freemoptions __P((struct ip_moptions *)); |
| | 176 | void ip_init __P((void)); |
| | 177 | extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *, |
| | 178 | struct ip_moptions *)); |
| | 179 | int ip_output __P((struct mbuf *, |
| | 180 | struct mbuf *, struct route *, int, struct ip_moptions *)); |
| | 181 | void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *, |
| | 182 | struct mbuf *)); |
| | 183 | void ip_slowtimo __P((void)); |
| | 184 | struct mbuf * |
| | 185 | ip_srcroute __P((void)); |
| | 186 | void ip_stripoptions __P((struct mbuf *, struct mbuf *)); |
| | 187 | int rip_ctloutput __P((struct socket *, struct sockopt *)); |
| | 188 | void rip_ctlinput __P((int, struct sockaddr *, void *)); |
| | 189 | void rip_init __P((void)); |
| | 190 | void rip_input __P((struct mbuf *, int)); |
| | 191 | int rip_output __P((struct mbuf *, struct socket *, u_long)); |
| | 192 | void ipip_input __P((struct mbuf *, int)); |
| | 193 | void rsvp_input __P((struct mbuf *, int)); |
| | 194 | int ip_rsvp_init __P((struct socket *)); |
| | 195 | int ip_rsvp_done __P((void)); |
| | 196 | int ip_rsvp_vif_init __P((struct socket *, struct sockopt *)); |
| | 197 | int ip_rsvp_vif_done __P((struct socket *, struct sockopt *)); |
| | 198 | void ip_rsvp_force_done __P((struct socket *)); |
| | 199 | |
| | 200 | #if IPDIVERT |
| | 201 | void div_init __P((void)); |
| | 202 | void div_input __P((struct mbuf *, int)); |
| | 203 | extern struct pr_usrreqs div_usrreqs; |
| | 204 | extern u_short ip_divert_port; |
| | 205 | extern u_short ip_divert_cookie; |
| | 206 | #endif |
| | 207 | |
| | 208 | extern struct sockaddr_in *ip_fw_fwd_addr; |
| | 209 | |
| | 210 | #endif /* KERNEL */ |
| | 211 | |
| | 212 | #endif /* !_NETINET_IP_VAR_H_ */ |
projects / apple / xnu.git / blame_incremental