1 | /* |
2 | * Copyright (c) 2008-2019 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | /* $KAME: ip6protosw.h,v 1.22 2001/02/08 18:02:08 itojun Exp $ */ |
30 | |
31 | /* |
32 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
33 | * All rights reserved. |
34 | * |
35 | * Redistribution and use in source and binary forms, with or without |
36 | * modification, are permitted provided that the following conditions |
37 | * are met: |
38 | * 1. Redistributions of source code must retain the above copyright |
39 | * notice, this list of conditions and the following disclaimer. |
40 | * 2. Redistributions in binary form must reproduce the above copyright |
41 | * notice, this list of conditions and the following disclaimer in the |
42 | * documentation and/or other materials provided with the distribution. |
43 | * 3. Neither the name of the project nor the names of its contributors |
44 | * may be used to endorse or promote products derived from this software |
45 | * without specific prior written permission. |
46 | * |
47 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
48 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
49 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
50 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
51 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
52 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
53 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
54 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
55 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
56 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
57 | * SUCH DAMAGE. |
58 | * |
59 | */ |
60 | |
61 | /* BSDI protosw.h,v 2.3 1996/10/11 16:02:40 pjd Exp */ |
62 | |
63 | /*- |
64 | * Copyright (c) 1982, 1986, 1993 |
65 | * The Regents of the University of California. All rights reserved. |
66 | * |
67 | * Redistribution and use in source and binary forms, with or without |
68 | * modification, are permitted provided that the following conditions |
69 | * are met: |
70 | * 1. Redistributions of source code must retain the above copyright |
71 | * notice, this list of conditions and the following disclaimer. |
72 | * 2. Redistributions in binary form must reproduce the above copyright |
73 | * notice, this list of conditions and the following disclaimer in the |
74 | * documentation and/or other materials provided with the distribution. |
75 | * 3. All advertising materials mentioning features or use of this software |
76 | * must display the following acknowledgement: |
77 | * This product includes software developed by the University of |
78 | * California, Berkeley and its contributors. |
79 | * 4. Neither the name of the University nor the names of its contributors |
80 | * may be used to endorse or promote products derived from this software |
81 | * without specific prior written permission. |
82 | * |
83 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
84 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
85 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
86 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
87 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
88 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
89 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
90 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
91 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
92 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
93 | * SUCH DAMAGE. |
94 | * |
95 | * @(#)protosw.h 8.1 (Berkeley) 6/2/93 |
96 | */ |
97 | |
98 | #ifndef _NETINET6_IP6PROTOSW_H_ |
99 | #define _NETINET6_IP6PROTOSW_H_ |
100 | #include <sys/appleapiopts.h> |
101 | |
102 | #ifdef BSD_KERNEL_PRIVATE |
103 | #include <kern/locks.h> |
104 | |
105 | /* |
106 | * Protocol switch table for IPv6. |
107 | * All other definitions should refer to sys/protosw.h |
108 | */ |
109 | |
110 | struct mbuf; |
111 | struct sockaddr; |
112 | struct socket; |
113 | struct domain; |
114 | struct ip6_hdr; |
115 | struct icmp6_hdr; |
116 | struct in6_addr; |
117 | struct pr_usrreqs; |
118 | |
119 | /* |
120 | * argument type for the last arg of pr_ctlinput(). |
121 | * should be consulted only with AF_INET6 family. |
122 | * |
123 | * IPv6 ICMP IPv6 [exthdrs] finalhdr payload |
124 | * ^ ^ ^ ^ |
125 | * | | ip6c_ip6 ip6c_off |
126 | * | ip6c_icmp6 |
127 | * ip6c_m |
128 | * |
129 | * ip6c_finaldst usually points to ip6c_ip6->ip6_dst. if the original |
130 | * (internal) packet carries a routing header, it may point the final |
131 | * dstination address in the routing header. |
132 | * |
133 | * ip6c_src: ip6c_ip6->ip6_src + scope info + flowlabel in ip6c_ip6 |
134 | * (beware of flowlabel, if you try to compare it against others) |
135 | * ip6c_dst: ip6c_finaldst + scope info |
136 | */ |
137 | struct ip6ctlparam { |
138 | struct mbuf *ip6c_m; /* start of mbuf chain */ |
139 | struct icmp6_hdr *ip6c_icmp6; /* icmp6 header of target packet */ |
140 | struct ip6_hdr *ip6c_ip6; /* ip6 header of target packet */ |
141 | int ip6c_off; /* offset of the target proto header */ |
142 | struct sockaddr_in6 *ip6c_src; /* srcaddr w/ additional info */ |
143 | struct sockaddr_in6 *ip6c_dst; /* (final) dstaddr w/ additional info */ |
144 | struct in6_addr *ip6c_finaldst; /* final destination address */ |
145 | void *ip6c_cmdarg; /* control command dependent data */ |
146 | u_int8_t ip6c_nxt; /* final next header field */ |
147 | }; |
148 | |
149 | /* |
150 | * TODO: |
151 | * |
152 | * This closesly resembles protosw; we should merge them one day. Offsets |
153 | * must be exactly equivalent, due to casting. |
154 | */ |
155 | struct ip6protosw { |
156 | TAILQ_ENTRY(ip6protosw) pr_entry; /* chain for domain */ |
157 | struct domain *pr_domain; /* domain protocol a member of */ |
158 | struct protosw *pr_protosw; /* pointer to self */ |
159 | u_int16_t pr_type; /* socket type used for */ |
160 | u_int16_t pr_protocol; /* protocol number */ |
161 | u_int32_t pr_flags; /* see below */ |
162 | /* |
163 | * protocol-protocol hooks |
164 | */ |
165 | int (*pr_input) /* input to protocol (from below) */ |
166 | (struct mbuf **, int *, int); |
167 | int (*pr_output) /* output to protocol (from above) */ |
168 | (struct mbuf *m, struct socket *so, |
169 | struct sockaddr_in6 *, struct mbuf *); |
170 | void (*pr_ctlinput) /* control input (from below) */ |
171 | (int, struct sockaddr *, void *, struct ifnet *); |
172 | int (*pr_ctloutput) /* control output (from above) */ |
173 | (struct socket *, struct sockopt *); |
174 | /* |
175 | * user-protocol hook |
176 | */ |
177 | struct pr_usrreqs *pr_usrreqs; /* user request; see list below */ |
178 | /* |
179 | * utility hooks |
180 | */ |
181 | void (*pr_init) /* initialization hook */ |
182 | (struct ip6protosw *, struct domain *); |
183 | void (*pr_drain)(void); /* flush any excess space possible */ |
184 | /* for compat. with IPv4 protosw */ |
185 | int (*pr_sysctl)(void); /* sysctl for protocol */ |
186 | int (*pr_lock) /* lock function for protocol */ |
187 | (struct socket *so, int refcnt, void *debug); |
188 | int (*pr_unlock) /* unlock for protocol */ |
189 | (struct socket *so, int refcnt, void *debug); |
190 | lck_mtx_t *(*pr_getlock) /* retrieve protocol lock */ |
191 | (struct socket *so, int flags); |
192 | /* |
193 | * misc |
194 | */ |
195 | TAILQ_HEAD(, socket_filter) pr_filter_head; |
196 | struct protosw_old *pr_old; |
197 | |
198 | void (*pr_update_last_owner) /* update last socket owner) */ |
199 | (struct socket *so, struct proc *p, struct proc *ep); |
200 | |
201 | void (*pr_copy_last_owner) /* copy last socket from listener */ |
202 | (struct socket *so, struct socket *head); |
203 | }; |
204 | #endif /* BSD_KERNEL_PRIVATE */ |
205 | #endif /* _NETINET6_IP6PROTOSW_H_ */ |
206 | |