![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ip_var.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Apple XNU] / XNU / bsd / netinet|
Return to ip_var.h CVS log | Up to [Apple XNU] / XNU / bsd / netinet |
1.1 root 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: #if IPDIVERT
85: u_short ipq_divert; /* divert protocol port */
86: u_short ipq_div_cookie; /* divert protocol cookie */
87: #endif
88: };
89:
90: /*
91: * Structure stored in mbuf in inpcb.ip_options
92: * and passed to ip_output when ip options are in use.
93: * The actual length of the options (including ipopt_dst)
94: * is in m_len.
95: */
96: #define MAX_IPOPTLEN 40
97:
98: struct ipoption {
99: struct in_addr ipopt_dst; /* first-hop dst if source routed */
100: char ipopt_list[MAX_IPOPTLEN]; /* options proper */
101: };
102:
103: /*
104: * Structure attached to inpcb.ip_moptions and
105: * passed to ip_output when IP multicast options are in use.
106: */
107: struct ip_moptions {
108: struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
109: u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
110: u_char imo_multicast_loop; /* 1 => hear sends if a member */
111: u_short imo_num_memberships; /* no. memberships this socket */
112: struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
113: u_long imo_multicast_vif; /* vif num outgoing multicasts */
114: };
115:
116: struct ipstat {
117: u_long ips_total; /* total packets received */
118: u_long ips_badsum; /* checksum bad */
119: u_long ips_tooshort; /* packet too short */
120: u_long ips_toosmall; /* not enough data */
121: u_long ips_badhlen; /* ip header length < data size */
122: u_long ips_badlen; /* ip length < ip header length */
123: u_long ips_fragments; /* fragments received */
124: u_long ips_fragdropped; /* frags dropped (dups, out of space) */
125: u_long ips_fragtimeout; /* fragments timed out */
126: u_long ips_forward; /* packets forwarded */
127: u_long ips_fastforward; /* packets fast forwarded */
128: u_long ips_cantforward; /* packets rcvd for unreachable dest */
129: u_long ips_redirectsent; /* packets forwarded on same net */
130: u_long ips_noproto; /* unknown or unsupported protocol */
131: u_long ips_delivered; /* datagrams delivered to upper level*/
132: u_long ips_localout; /* total ip packets generated here */
133: u_long ips_odropped; /* lost packets due to nobufs, etc. */
134: u_long ips_reassembled; /* total packets reassembled ok */
135: u_long ips_fragmented; /* datagrams successfully fragmented */
136: u_long ips_ofragments; /* output fragments created */
137: u_long ips_cantfrag; /* don't fragment flag was set, etc. */
138: u_long ips_badoptions; /* error in option processing */
139: u_long ips_noroute; /* packets discarded due to no route */
140: u_long ips_badvers; /* ip version != 4 */
141: u_long ips_rawout; /* total raw ip packets generated */
142: u_long ips_toolong; /* ip length > max ip packet size */
143: u_long ips_notmember; /* multicasts for unregistered grps */
144: };
145:
146: #if KERNEL
147:
148: /* flags passed to ip_output as last parameter */
149: #define IP_FORWARDING 0x1 /* most of ip header exists */
150: #define IP_RAWOUTPUT 0x2 /* raw ip header exists */
151: #define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
152: #define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
153:
154: struct ip;
155: struct inpcb;
156: struct route;
157: struct sockopt;
158:
159: extern struct ipstat ipstat;
160: extern u_short ip_id; /* ip packet ctr, for ids */
161: extern int ip_defttl; /* default IP ttl */
162: extern int ipforwarding; /* ip forwarding */
163: extern struct protosw *ip_protox[];
164: extern struct socket *ip_rsvpd; /* reservation protocol daemon */
165: extern struct socket *ip_mrouter; /* multicast routing daemon */
166: extern int (*legal_vif_num) __P((int));
167: extern u_long (*ip_mcast_src) __P((int));
168: extern int rsvp_on;
169: extern struct pr_usrreqs rip_usrreqs;
170:
171: int ip_ctloutput __P((struct socket *, struct sockopt *sopt));
172: void ip_drain __P((void));
173: void ip_freemoptions __P((struct ip_moptions *));
174: void ip_init __P((void));
175: extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *,
176: struct ip_moptions *));
177: int ip_output __P((struct mbuf *,
178: struct mbuf *, struct route *, int, struct ip_moptions *));
179: void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *,
180: struct mbuf *));
181: void ip_slowtimo __P((void));
182: struct mbuf *
183: ip_srcroute __P((void));
184: void ip_stripoptions __P((struct mbuf *, struct mbuf *));
185: int rip_ctloutput __P((struct socket *, struct sockopt *));
186: void rip_ctlinput __P((int, struct sockaddr *, void *));
187: void rip_init __P((void));
188: void rip_input __P((struct mbuf *, int));
189: int rip_output __P((struct mbuf *, struct socket *, u_long));
190: void ipip_input __P((struct mbuf *, int));
191: void rsvp_input __P((struct mbuf *, int));
192: int ip_rsvp_init __P((struct socket *));
193: int ip_rsvp_done __P((void));
194: int ip_rsvp_vif_init __P((struct socket *, struct sockopt *));
195: int ip_rsvp_vif_done __P((struct socket *, struct sockopt *));
196: void ip_rsvp_force_done __P((struct socket *));
197:
198: #if IPDIVERT
199: void div_init __P((void));
200: void div_input __P((struct mbuf *, int));
201: extern struct pr_usrreqs div_usrreqs;
202: extern u_short ip_divert_port;
203: extern u_short ip_divert_cookie;
204: #endif
205:
206: extern struct sockaddr_in *ip_fw_fwd_addr;
207:
208: #endif /* KERNEL */
209:
210: #endif /* !_NETINET_IP_VAR_H_ */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.