1/*
2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ip_var.h 8.2 (Berkeley) 1/9/95
| 1/*
2 * Copyright (c) 1982, 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ip_var.h 8.2 (Berkeley) 1/9/95
|
34 * $FreeBSD: head/sys/netinet/ip_var.h 54175 1999-12-06 00:43:07Z archie $
| 34 * $FreeBSD: head/sys/netinet/ip_var.h 55009 1999-12-22 19:13:38Z shin $
|
35 */
36
37#ifndef _NETINET_IP_VAR_H_
38#define _NETINET_IP_VAR_H_
39
40/*
41 * Overlay for ip header used by other protocols (tcp, udp).
42 */
43struct ipovly {
44 u_char ih_x1[9]; /* (unused) */
45 u_char ih_pr; /* protocol */
46 u_short ih_len; /* protocol length */
47 struct in_addr ih_src; /* source internet address */
48 struct in_addr ih_dst; /* destination internet address */
49};
50
51/*
52 * Ip reassembly queue structure. Each fragment
53 * being reassembled is attached to one of these structures.
54 * They are timed out after ipq_ttl drops to 0, and may also
55 * be reclaimed if memory becomes tight.
56 */
57struct ipq {
58 struct ipq *next,*prev; /* to other reass headers */
59 u_char ipq_ttl; /* time for reass q to live */
60 u_char ipq_p; /* protocol of this fragment */
61 u_short ipq_id; /* sequence id for reassembly */
62 struct mbuf *ipq_frags; /* to ip headers of fragments */
63 struct in_addr ipq_src,ipq_dst;
64#ifdef IPDIVERT
65 u_int32_t ipq_div_info; /* ipfw divert port & flags */
66 u_int16_t ipq_div_cookie; /* ipfw divert cookie */
67#endif
68};
69
70/*
71 * Structure stored in mbuf in inpcb.ip_options
72 * and passed to ip_output when ip options are in use.
73 * The actual length of the options (including ipopt_dst)
74 * is in m_len.
75 */
76#define MAX_IPOPTLEN 40
77
78struct ipoption {
79 struct in_addr ipopt_dst; /* first-hop dst if source routed */
80 char ipopt_list[MAX_IPOPTLEN]; /* options proper */
81};
82
83/*
84 * Structure attached to inpcb.ip_moptions and
85 * passed to ip_output when IP multicast options are in use.
86 */
87struct ip_moptions {
88 struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
89 u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
90 u_char imo_multicast_loop; /* 1 => hear sends if a member */
91 u_short imo_num_memberships; /* no. memberships this socket */
92 struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
93 u_long imo_multicast_vif; /* vif num outgoing multicasts */
94};
95
96struct ipstat {
97 u_long ips_total; /* total packets received */
98 u_long ips_badsum; /* checksum bad */
99 u_long ips_tooshort; /* packet too short */
100 u_long ips_toosmall; /* not enough data */
101 u_long ips_badhlen; /* ip header length < data size */
102 u_long ips_badlen; /* ip length < ip header length */
103 u_long ips_fragments; /* fragments received */
104 u_long ips_fragdropped; /* frags dropped (dups, out of space) */
105 u_long ips_fragtimeout; /* fragments timed out */
106 u_long ips_forward; /* packets forwarded */
107 u_long ips_fastforward; /* packets fast forwarded */
108 u_long ips_cantforward; /* packets rcvd for unreachable dest */
109 u_long ips_redirectsent; /* packets forwarded on same net */
110 u_long ips_noproto; /* unknown or unsupported protocol */
111 u_long ips_delivered; /* datagrams delivered to upper level*/
112 u_long ips_localout; /* total ip packets generated here */
113 u_long ips_odropped; /* lost packets due to nobufs, etc. */
114 u_long ips_reassembled; /* total packets reassembled ok */
115 u_long ips_fragmented; /* datagrams successfully fragmented */
116 u_long ips_ofragments; /* output fragments created */
117 u_long ips_cantfrag; /* don't fragment flag was set, etc. */
118 u_long ips_badoptions; /* error in option processing */
119 u_long ips_noroute; /* packets discarded due to no route */
120 u_long ips_badvers; /* ip version != 4 */
121 u_long ips_rawout; /* total raw ip packets generated */
122 u_long ips_toolong; /* ip length > max ip packet size */
123 u_long ips_notmember; /* multicasts for unregistered grps */
124 u_long ips_nogif; /* no match gif found */
125};
126
127#ifdef KERNEL
128
129/* flags passed to ip_output as last parameter */
130#define IP_FORWARDING 0x1 /* most of ip header exists */
131#define IP_RAWOUTPUT 0x2 /* raw ip header exists */
132#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
133#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
| 35 */
36
37#ifndef _NETINET_IP_VAR_H_
38#define _NETINET_IP_VAR_H_
39
40/*
41 * Overlay for ip header used by other protocols (tcp, udp).
42 */
43struct ipovly {
44 u_char ih_x1[9]; /* (unused) */
45 u_char ih_pr; /* protocol */
46 u_short ih_len; /* protocol length */
47 struct in_addr ih_src; /* source internet address */
48 struct in_addr ih_dst; /* destination internet address */
49};
50
51/*
52 * Ip reassembly queue structure. Each fragment
53 * being reassembled is attached to one of these structures.
54 * They are timed out after ipq_ttl drops to 0, and may also
55 * be reclaimed if memory becomes tight.
56 */
57struct ipq {
58 struct ipq *next,*prev; /* to other reass headers */
59 u_char ipq_ttl; /* time for reass q to live */
60 u_char ipq_p; /* protocol of this fragment */
61 u_short ipq_id; /* sequence id for reassembly */
62 struct mbuf *ipq_frags; /* to ip headers of fragments */
63 struct in_addr ipq_src,ipq_dst;
64#ifdef IPDIVERT
65 u_int32_t ipq_div_info; /* ipfw divert port & flags */
66 u_int16_t ipq_div_cookie; /* ipfw divert cookie */
67#endif
68};
69
70/*
71 * Structure stored in mbuf in inpcb.ip_options
72 * and passed to ip_output when ip options are in use.
73 * The actual length of the options (including ipopt_dst)
74 * is in m_len.
75 */
76#define MAX_IPOPTLEN 40
77
78struct ipoption {
79 struct in_addr ipopt_dst; /* first-hop dst if source routed */
80 char ipopt_list[MAX_IPOPTLEN]; /* options proper */
81};
82
83/*
84 * Structure attached to inpcb.ip_moptions and
85 * passed to ip_output when IP multicast options are in use.
86 */
87struct ip_moptions {
88 struct ifnet *imo_multicast_ifp; /* ifp for outgoing multicasts */
89 u_char imo_multicast_ttl; /* TTL for outgoing multicasts */
90 u_char imo_multicast_loop; /* 1 => hear sends if a member */
91 u_short imo_num_memberships; /* no. memberships this socket */
92 struct in_multi *imo_membership[IP_MAX_MEMBERSHIPS];
93 u_long imo_multicast_vif; /* vif num outgoing multicasts */
94};
95
96struct ipstat {
97 u_long ips_total; /* total packets received */
98 u_long ips_badsum; /* checksum bad */
99 u_long ips_tooshort; /* packet too short */
100 u_long ips_toosmall; /* not enough data */
101 u_long ips_badhlen; /* ip header length < data size */
102 u_long ips_badlen; /* ip length < ip header length */
103 u_long ips_fragments; /* fragments received */
104 u_long ips_fragdropped; /* frags dropped (dups, out of space) */
105 u_long ips_fragtimeout; /* fragments timed out */
106 u_long ips_forward; /* packets forwarded */
107 u_long ips_fastforward; /* packets fast forwarded */
108 u_long ips_cantforward; /* packets rcvd for unreachable dest */
109 u_long ips_redirectsent; /* packets forwarded on same net */
110 u_long ips_noproto; /* unknown or unsupported protocol */
111 u_long ips_delivered; /* datagrams delivered to upper level*/
112 u_long ips_localout; /* total ip packets generated here */
113 u_long ips_odropped; /* lost packets due to nobufs, etc. */
114 u_long ips_reassembled; /* total packets reassembled ok */
115 u_long ips_fragmented; /* datagrams successfully fragmented */
116 u_long ips_ofragments; /* output fragments created */
117 u_long ips_cantfrag; /* don't fragment flag was set, etc. */
118 u_long ips_badoptions; /* error in option processing */
119 u_long ips_noroute; /* packets discarded due to no route */
120 u_long ips_badvers; /* ip version != 4 */
121 u_long ips_rawout; /* total raw ip packets generated */
122 u_long ips_toolong; /* ip length > max ip packet size */
123 u_long ips_notmember; /* multicasts for unregistered grps */
124 u_long ips_nogif; /* no match gif found */
125};
126
127#ifdef KERNEL
128
129/* flags passed to ip_output as last parameter */
130#define IP_FORWARDING 0x1 /* most of ip header exists */
131#define IP_RAWOUTPUT 0x2 /* raw ip header exists */
132#define IP_ROUTETOIF SO_DONTROUTE /* bypass routing tables */
133#define IP_ALLOWBROADCAST SO_BROADCAST /* can send broadcast packets */
|
| 134#define IP_SOCKINMRCVIF 0x100 /* IPSEC hack;
135 * socket pointer in sending
136 * packet's m_pkthdr.rcvif */
|
134
135struct ip;
136struct inpcb;
137struct route;
138struct sockopt;
139
140extern struct ipstat ipstat;
141extern u_short ip_id; /* ip packet ctr, for ids */
142extern int ip_defttl; /* default IP ttl */
143extern int ipforwarding; /* ip forwarding */
144extern u_char ip_protox[];
145extern struct socket *ip_rsvpd; /* reservation protocol daemon */
146extern struct socket *ip_mrouter; /* multicast routing daemon */
147extern int (*legal_vif_num) __P((int));
148extern u_long (*ip_mcast_src) __P((int));
149extern int rsvp_on;
150extern struct pr_usrreqs rip_usrreqs;
151
152int ip_ctloutput __P((struct socket *, struct sockopt *sopt));
153void ip_drain __P((void));
154void ip_freemoptions __P((struct ip_moptions *));
155void ip_init __P((void));
156extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *,
157 struct ip_moptions *));
158int ip_output __P((struct mbuf *,
159 struct mbuf *, struct route *, int, struct ip_moptions *));
160void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *,
161 struct mbuf *));
162void ip_slowtimo __P((void));
163struct mbuf *
164 ip_srcroute __P((void));
165void ip_stripoptions __P((struct mbuf *, struct mbuf *));
166int rip_ctloutput __P((struct socket *, struct sockopt *));
167void rip_ctlinput __P((int, struct sockaddr *, void *));
168void rip_init __P((void));
| 137
138struct ip;
139struct inpcb;
140struct route;
141struct sockopt;
142
143extern struct ipstat ipstat;
144extern u_short ip_id; /* ip packet ctr, for ids */
145extern int ip_defttl; /* default IP ttl */
146extern int ipforwarding; /* ip forwarding */
147extern u_char ip_protox[];
148extern struct socket *ip_rsvpd; /* reservation protocol daemon */
149extern struct socket *ip_mrouter; /* multicast routing daemon */
150extern int (*legal_vif_num) __P((int));
151extern u_long (*ip_mcast_src) __P((int));
152extern int rsvp_on;
153extern struct pr_usrreqs rip_usrreqs;
154
155int ip_ctloutput __P((struct socket *, struct sockopt *sopt));
156void ip_drain __P((void));
157void ip_freemoptions __P((struct ip_moptions *));
158void ip_init __P((void));
159extern int (*ip_mforward) __P((struct ip *, struct ifnet *, struct mbuf *,
160 struct ip_moptions *));
161int ip_output __P((struct mbuf *,
162 struct mbuf *, struct route *, int, struct ip_moptions *));
163void ip_savecontrol __P((struct inpcb *, struct mbuf **, struct ip *,
164 struct mbuf *));
165void ip_slowtimo __P((void));
166struct mbuf *
167 ip_srcroute __P((void));
168void ip_stripoptions __P((struct mbuf *, struct mbuf *));
169int rip_ctloutput __P((struct socket *, struct sockopt *));
170void rip_ctlinput __P((int, struct sockaddr *, void *));
171void rip_init __P((void));
|
169void rip_input __P((struct mbuf *, int));
| 172void rip_input __P((struct mbuf *, int, int));
|
170int rip_output __P((struct mbuf *, struct socket *, u_long));
| 173int rip_output __P((struct mbuf *, struct socket *, u_long));
|
171void ipip_input __P((struct mbuf *, int));
172void rsvp_input __P((struct mbuf *, int));
| 174void ipip_input __P((struct mbuf *, int, int));
175void rsvp_input __P((struct mbuf *, int, int));
|
173int ip_rsvp_init __P((struct socket *));
174int ip_rsvp_done __P((void));
175int ip_rsvp_vif_init __P((struct socket *, struct sockopt *));
176int ip_rsvp_vif_done __P((struct socket *, struct sockopt *));
177void ip_rsvp_force_done __P((struct socket *));
178
179#ifdef IPDIVERT
180void div_init __P((void));
| 176int ip_rsvp_init __P((struct socket *));
177int ip_rsvp_done __P((void));
178int ip_rsvp_vif_init __P((struct socket *, struct sockopt *));
179int ip_rsvp_vif_done __P((struct socket *, struct sockopt *));
180void ip_rsvp_force_done __P((struct socket *));
181
182#ifdef IPDIVERT
183void div_init __P((void));
|
181void div_input __P((struct mbuf *, int));
| 184void div_input __P((struct mbuf *, int, int));
|
182void divert_packet __P((struct mbuf *, int, int));
183extern struct pr_usrreqs div_usrreqs;
184extern u_int16_t ip_divert_cookie;
185#endif
186
187extern struct sockaddr_in *ip_fw_fwd_addr;
188
189#endif /* KERNEL */
190
191#endif /* !_NETINET_IP_VAR_H_ */
| 185void divert_packet __P((struct mbuf *, int, int));
186extern struct pr_usrreqs div_usrreqs;
187extern u_int16_t ip_divert_cookie;
188#endif
189
190extern struct sockaddr_in *ip_fw_fwd_addr;
191
192#endif /* KERNEL */
193
194#endif /* !_NETINET_IP_VAR_H_ */
|