1*43a90889SApple OSS Distributions /*
2*43a90889SApple OSS Distributions * Copyright (c) 2000-2020 Apple Inc. All rights reserved.
3*43a90889SApple OSS Distributions *
4*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*43a90889SApple OSS Distributions *
6*43a90889SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*43a90889SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*43a90889SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*43a90889SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*43a90889SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*43a90889SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*43a90889SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*43a90889SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*43a90889SApple OSS Distributions *
15*43a90889SApple OSS Distributions * Please obtain a copy of the License at
16*43a90889SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*43a90889SApple OSS Distributions *
18*43a90889SApple OSS Distributions * The Original Code and all software distributed under the License are
19*43a90889SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*43a90889SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*43a90889SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*43a90889SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*43a90889SApple OSS Distributions * Please see the License for the specific language governing rights and
24*43a90889SApple OSS Distributions * limitations under the License.
25*43a90889SApple OSS Distributions *
26*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*43a90889SApple OSS Distributions */
28*43a90889SApple OSS Distributions
29*43a90889SApple OSS Distributions /*
30*43a90889SApple OSS Distributions * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
31*43a90889SApple OSS Distributions * All rights reserved.
32*43a90889SApple OSS Distributions *
33*43a90889SApple OSS Distributions * Redistribution and use in source and binary forms, with or without
34*43a90889SApple OSS Distributions * modification, are permitted provided that the following conditions
35*43a90889SApple OSS Distributions * are met:
36*43a90889SApple OSS Distributions * 1. Redistributions of source code must retain the above copyright
37*43a90889SApple OSS Distributions * notice, this list of conditions and the following disclaimer.
38*43a90889SApple OSS Distributions * 2. Redistributions in binary form must reproduce the above copyright
39*43a90889SApple OSS Distributions * notice, this list of conditions and the following disclaimer in the
40*43a90889SApple OSS Distributions * documentation and/or other materials provided with the distribution.
41*43a90889SApple OSS Distributions * 3. Neither the name of the project nor the names of its contributors
42*43a90889SApple OSS Distributions * may be used to endorse or promote products derived from this software
43*43a90889SApple OSS Distributions * without specific prior written permission.
44*43a90889SApple OSS Distributions *
45*43a90889SApple OSS Distributions * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
46*43a90889SApple OSS Distributions * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47*43a90889SApple OSS Distributions * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48*43a90889SApple OSS Distributions * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
49*43a90889SApple OSS Distributions * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50*43a90889SApple OSS Distributions * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51*43a90889SApple OSS Distributions * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52*43a90889SApple OSS Distributions * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53*43a90889SApple OSS Distributions * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54*43a90889SApple OSS Distributions * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55*43a90889SApple OSS Distributions * SUCH DAMAGE.
56*43a90889SApple OSS Distributions */
57*43a90889SApple OSS Distributions
58*43a90889SApple OSS Distributions #include <sys/param.h>
59*43a90889SApple OSS Distributions #include <sys/mcache.h>
60*43a90889SApple OSS Distributions #include <sys/mbuf.h>
61*43a90889SApple OSS Distributions #include <sys/socket.h>
62*43a90889SApple OSS Distributions #include <sys/queue.h>
63*43a90889SApple OSS Distributions #include <kern/debug.h>
64*43a90889SApple OSS Distributions #include <string.h>
65*43a90889SApple OSS Distributions
66*43a90889SApple OSS Distributions #include <net/if.h>
67*43a90889SApple OSS Distributions #include <net/route.h>
68*43a90889SApple OSS Distributions
69*43a90889SApple OSS Distributions #include <netinet/in.h>
70*43a90889SApple OSS Distributions #include <netinet6/in6_var.h>
71*43a90889SApple OSS Distributions #include <netinet/ip6.h>
72*43a90889SApple OSS Distributions #include <netinet6/ip6_var.h>
73*43a90889SApple OSS Distributions
74*43a90889SApple OSS Distributions #include <netinet/icmp6.h>
75*43a90889SApple OSS Distributions
76*43a90889SApple OSS Distributions int
route6_input(struct mbuf ** mp,int * offp,int proto)77*43a90889SApple OSS Distributions route6_input(struct mbuf **mp, int *offp, int proto)
78*43a90889SApple OSS Distributions {
79*43a90889SApple OSS Distributions #pragma unused(proto)
80*43a90889SApple OSS Distributions struct ip6_hdr *ip6 = NULL;
81*43a90889SApple OSS Distributions mbuf_ref_t m = *mp;
82*43a90889SApple OSS Distributions struct ip6_rthdr *__single rh = NULL;
83*43a90889SApple OSS Distributions int off = *offp, rhlen = 0;
84*43a90889SApple OSS Distributions #ifdef notyet
85*43a90889SApple OSS Distributions struct ip6aux *__single ip6a = NULL;
86*43a90889SApple OSS Distributions
87*43a90889SApple OSS Distributions ip6a = ip6_findaux(m);
88*43a90889SApple OSS Distributions if (ip6a) {
89*43a90889SApple OSS Distributions /* XXX reject home-address option before rthdr */
90*43a90889SApple OSS Distributions if (ip6a->ip6a_flags & IP6A_SWAP) {
91*43a90889SApple OSS Distributions ip6stat.ip6s_badoptions++;
92*43a90889SApple OSS Distributions *mp = NULL;
93*43a90889SApple OSS Distributions m_freem(m);
94*43a90889SApple OSS Distributions return IPPROTO_DONE;
95*43a90889SApple OSS Distributions }
96*43a90889SApple OSS Distributions }
97*43a90889SApple OSS Distributions ip6a = NULL;
98*43a90889SApple OSS Distributions #endif /* notyet */
99*43a90889SApple OSS Distributions
100*43a90889SApple OSS Distributions IP6_EXTHDR_CHECK(m, off, sizeof(*rh), return IPPROTO_DONE);
101*43a90889SApple OSS Distributions
102*43a90889SApple OSS Distributions /* Expect 32-bit aligned data pointer on strict-align platforms */
103*43a90889SApple OSS Distributions MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
104*43a90889SApple OSS Distributions
105*43a90889SApple OSS Distributions ip6 = mtod(m, struct ip6_hdr *);
106*43a90889SApple OSS Distributions rh = (struct ip6_rthdr *)((caddr_t)ip6 + off);
107*43a90889SApple OSS Distributions
108*43a90889SApple OSS Distributions switch (rh->ip6r_type) {
109*43a90889SApple OSS Distributions default:
110*43a90889SApple OSS Distributions /* unknown routing type */
111*43a90889SApple OSS Distributions if (rh->ip6r_segleft == 0) {
112*43a90889SApple OSS Distributions rhlen = (rh->ip6r_len + 1) << 3;
113*43a90889SApple OSS Distributions break; /* Final dst. Just ignore the header. */
114*43a90889SApple OSS Distributions }
115*43a90889SApple OSS Distributions ip6stat.ip6s_badoptions++;
116*43a90889SApple OSS Distributions icmp6_error(m, ICMP6_PARAM_PROB, ICMP6_PARAMPROB_HEADER,
117*43a90889SApple OSS Distributions (int)((caddr_t)&rh->ip6r_type - (caddr_t)ip6));
118*43a90889SApple OSS Distributions return IPPROTO_DONE;
119*43a90889SApple OSS Distributions }
120*43a90889SApple OSS Distributions
121*43a90889SApple OSS Distributions *mp = m;
122*43a90889SApple OSS Distributions *offp += rhlen;
123*43a90889SApple OSS Distributions return rh->ip6r_nxt;
124*43a90889SApple OSS Distributions }
125