1 /*
2 * Copyright (c) 2023-2024 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 #include <darwintest.h>
30
31 #include <sys/ioctl.h>
32
33 #include <stdlib.h>
34 #include <string.h>
35 #include <strings.h>
36
37 #include "net_test_lib.h"
38
39 T_GLOBAL_META(
40 T_META_NAMESPACE("xnu.net"),
41 T_META_ASROOT(true),
42 T_META_RADAR_COMPONENT_NAME("xnu"),
43 T_META_RADAR_COMPONENT_VERSION("networking"),
44 T_META_CHECK_LEAKS(false));
45
46 static char ifname1[IF_NAMESIZE];
47
48
49 static void
cleanup(void)50 cleanup(void)
51 {
52 if (ifname1[0] != '\0') {
53 T_LOG("ifnet_destroy %s", ifname1);
54 (void)ifnet_destroy(ifname1, false);
55 }
56 }
57
58 static void
set_sockaddr_in6(struct sockaddr_in6 * sin6_p,const struct in6_addr * addr)59 set_sockaddr_in6(struct sockaddr_in6 *sin6_p, const struct in6_addr *addr)
60 {
61 sin6_p->sin6_family = AF_INET6;
62 sin6_p->sin6_len = sizeof(struct sockaddr_in6);
63 sin6_p->sin6_addr = *addr;
64 return;
65 }
66
67 static int
inet6_difaddr(const char * name,const struct in6_addr * addr)68 inet6_difaddr(const char *name, const struct in6_addr *addr)
69 {
70 struct in6_ifreq ifr;
71 int s6 = inet6_dgram_socket_get();
72
73 bzero(&ifr, sizeof(ifr));
74 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
75 if (addr != NULL) {
76 set_sockaddr_in6(&ifr.ifr_ifru.ifru_addr, addr);
77 }
78 return ioctl(s6, SIOCDIFADDR_IN6, &ifr);
79 }
80
81 static void
in6_len2mask(struct in6_addr * mask,int len)82 in6_len2mask(struct in6_addr *mask, int len)
83 {
84 int i;
85
86 bzero(mask, sizeof(*mask));
87 for (i = 0; i < len / 8; i++) {
88 mask->s6_addr[i] = 0xff;
89 }
90 if (len % 8) {
91 mask->s6_addr[i] = (0xff00 >> (len % 8)) & 0xff;
92 }
93 }
94
95 static int
inet6_aifaddr(const char * name,const struct in6_addr * addr,const struct in6_addr * dstaddr,int prefix_length,int flags,u_int32_t valid_lifetime,u_int32_t preferred_lifetime)96 inet6_aifaddr(const char *name, const struct in6_addr *addr,
97 const struct in6_addr *dstaddr, int prefix_length,
98 int flags,
99 u_int32_t valid_lifetime,
100 u_int32_t preferred_lifetime)
101 {
102 struct in6_aliasreq ifra_in6;
103 int s6 = inet6_dgram_socket_get();
104
105 bzero(&ifra_in6, sizeof(ifra_in6));
106 strncpy(ifra_in6.ifra_name, name, sizeof(ifra_in6.ifra_name));
107 ifra_in6.ifra_lifetime.ia6t_vltime = valid_lifetime;
108 ifra_in6.ifra_lifetime.ia6t_pltime = preferred_lifetime;
109 ifra_in6.ifra_flags = flags;
110 if (addr != NULL) {
111 set_sockaddr_in6(&ifra_in6.ifra_addr, addr);
112 }
113
114 if (dstaddr != NULL) {
115 set_sockaddr_in6(&ifra_in6.ifra_dstaddr, dstaddr);
116 }
117
118 if (prefix_length != 0) {
119 struct in6_addr prefixmask;
120
121 in6_len2mask(&prefixmask, prefix_length);
122 set_sockaddr_in6(&ifra_in6.ifra_prefixmask, &prefixmask);
123 }
124
125 return ioctl(s6, SIOCAIFADDR_IN6, &ifra_in6);
126 }
127
128 static void
create_fake_interface(void)129 create_fake_interface(void)
130 {
131 int error;
132
133 strlcpy(ifname1, FETH_NAME, sizeof(ifname1));
134 error = ifnet_create_2(ifname1, sizeof(ifname1));
135 if (error != 0) {
136 ifname1[0] = '\0';
137 T_ASSERT_POSIX_SUCCESS(error, "ifnet_create_2");
138 }
139 T_LOG("created %s", ifname1);
140 }
141
142 T_DECL(inet6_addr_mode_auto_to_manual, "inet6 address mode-switching (auto -> manual)")
143 {
144 struct in6_addr lladdr;
145 struct in6_addr newaddr;
146 unsigned int if_index;
147
148 T_ATEND(cleanup);
149
150 create_fake_interface();
151 ifnet_start_ipv6(ifname1);
152
153 if_index = if_nametoindex(ifname1);
154 T_EXPECT_GT(if_index, 0, NULL);
155 T_ASSERT_EQ(inet6_get_linklocal_address(if_index, &lladdr), 1, NULL);
156
157 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &lladdr, NULL, 64, 123, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
158
159 /* Create address as an autoconfed address */
160 T_ASSERT_EQ(inet_pton(AF_INET6, "2001:db8::3", &newaddr), 1, NULL);
161 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &newaddr, NULL, 64, (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY), ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
162
163 /* Now mark it as manual */
164 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &newaddr, NULL, 64, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
165
166 /* Deleting address should NOT result in panic */
167 T_ASSERT_POSIX_SUCCESS(inet6_difaddr(ifname1, &newaddr), NULL);
168 }
169
170 T_DECL(inet6_addr_mode_manual_to_auto, "inet6 address mode-switching (manual -> auto)")
171 {
172 struct in6_addr lladdr;
173 struct in6_addr newaddr;
174 unsigned int if_index;
175
176 T_ATEND(cleanup);
177 create_fake_interface();
178
179 T_LOG("created %s", ifname1);
180
181 ifnet_start_ipv6(ifname1);
182
183 if_index = if_nametoindex(ifname1);
184 T_EXPECT_GT(if_index, 0, NULL);
185 T_ASSERT_EQ(inet6_get_linklocal_address(if_index, &lladdr), 1, NULL);
186
187 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &lladdr, NULL, 64, 123, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
188
189 /* Create address as a manual address */
190 T_ASSERT_EQ(inet_pton(AF_INET6, "2001:db8::1", &newaddr), 1, NULL);
191 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &newaddr, NULL, 64, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
192
193 /* Now make it autoconfed */
194 T_ASSERT_POSIX_SUCCESS(inet6_aifaddr(ifname1, &newaddr, NULL, 64, (IN6_IFF_AUTOCONF | IN6_IFF_TEMPORARY), ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME), NULL);
195
196 /* Deleting address should NOT result in panic */
197 T_ASSERT_POSIX_SUCCESS(inet6_difaddr(ifname1, &newaddr), NULL);
198 }
199