xref: /libuv/test/test-ip6-addr.c (revision 011a1ac1)
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10  * The above copyright notice and this permission notice shall be included in
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14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 
25 #include <stdio.h>
26 #include <string.h>
27 
28 #ifdef __linux__
29 # include <sys/socket.h>
30 # include <net/if.h>
31 #endif
32 
33 
TEST_IMPL(ip6_addr_link_local)34 TEST_IMPL(ip6_addr_link_local) {
35 #if defined(__CYGWIN__) || defined(__MSYS__)
36   /* FIXME: Does Cygwin support this?  */
37   RETURN_SKIP("FIXME: This test needs more investigation on Cygwin");
38 #endif
39   char string_address[INET6_ADDRSTRLEN];
40   uv_interface_address_t* addresses;
41   uv_interface_address_t* address;
42   struct sockaddr_in6 addr;
43   unsigned int iface_index;
44   const char* device_name;
45   /* 40 bytes address, 16 bytes device name, plus reserve. */
46   char scoped_addr[128];
47   size_t scoped_addr_len;
48   char interface_id[UV_IF_NAMESIZE];
49   size_t interface_id_len;
50   int count;
51   int ix;
52   int r;
53 
54   ASSERT_OK(uv_interface_addresses(&addresses, &count));
55 
56   for (ix = 0; ix < count; ix++) {
57     address = addresses + ix;
58 
59     if (address->address.address6.sin6_family != AF_INET6)
60       continue;
61 
62     ASSERT_OK(uv_inet_ntop(AF_INET6,
63                            &address->address.address6.sin6_addr,
64                            string_address,
65                            sizeof(string_address)));
66 
67     /* Skip addresses that are not link-local. */
68     if (strncmp(string_address, "fe80::", 6) != 0)
69       continue;
70 
71     iface_index = address->address.address6.sin6_scope_id;
72     device_name = address->name;
73 
74     scoped_addr_len = sizeof(scoped_addr);
75     ASSERT_OK(uv_if_indextoname(iface_index,
76                                 scoped_addr,
77                                 &scoped_addr_len));
78 #ifndef _WIN32
79     /* This assert fails on Windows, as Windows semantics are different. */
80     ASSERT_OK(strcmp(device_name, scoped_addr));
81 #endif
82 
83     interface_id_len = sizeof(interface_id);
84     r = uv_if_indextoiid(iface_index, interface_id, &interface_id_len);
85     ASSERT_OK(r);
86 #ifdef _WIN32
87     /* On Windows, the interface identifier is the numeric string of the index. */
88     ASSERT_EQ(strtoul(interface_id, NULL, 10), iface_index);
89 #else
90     /* On Unix/Linux, the interface identifier is the interface device name. */
91     ASSERT_OK(strcmp(device_name, interface_id));
92 #endif
93 
94     snprintf(scoped_addr,
95              sizeof(scoped_addr),
96              "%s%%%s",
97              string_address,
98              interface_id);
99 
100     fprintf(stderr, "Testing link-local address %s "
101             "(iface_index: 0x%02x, device_name: %s)\n",
102             scoped_addr,
103             iface_index,
104             device_name);
105     fflush(stderr);
106 
107     ASSERT_OK(uv_ip6_addr(scoped_addr, TEST_PORT, &addr));
108     fprintf(stderr, "Got scope_id 0x%2x\n", (unsigned)addr.sin6_scope_id);
109     fflush(stderr);
110     ASSERT_EQ(iface_index, addr.sin6_scope_id);
111   }
112 
113   uv_free_interface_addresses(addresses, count);
114 
115   scoped_addr_len = sizeof(scoped_addr);
116   ASSERT_NE(0, uv_if_indextoname((unsigned int)-1,
117                                  scoped_addr,
118                                  &scoped_addr_len));
119 
120   MAKE_VALGRIND_HAPPY(uv_default_loop());
121   return 0;
122 }
123 
124 
125 #define GOOD_ADDR_LIST(X)                                                     \
126     X("::")                                                                   \
127     X("::1")                                                                  \
128     X("fe80::1")                                                              \
129     X("fe80::")                                                               \
130     X("fe80::2acf:daff:fedd:342a")                                            \
131     X("fe80:0:0:0:2acf:daff:fedd:342a")                                       \
132     X("fe80:0:0:0:2acf:daff:1.2.3.4")                                         \
133     X("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")                        \
134 
135 #define BAD_ADDR_LIST(X)                                                      \
136     X(":::1")                                                                 \
137     X("abcde::1")                                                             \
138     X("fe80:0:0:0:2acf:daff:fedd:342a:5678")                                  \
139     X("fe80:0:0:0:2acf:daff:abcd:1.2.3.4")                                    \
140     X("fe80:0:0:2acf:daff:1.2.3.4.5")                                         \
141     X("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255.255")                    \
142 
143 #define TEST_GOOD(ADDR)                                                       \
144     ASSERT_OK(uv_inet_pton(AF_INET6, ADDR, &addr));                           \
145     ASSERT_OK(uv_inet_pton(AF_INET6, ADDR "%en1", &addr));                    \
146     ASSERT_OK(uv_inet_pton(AF_INET6, ADDR "%%%%", &addr));                    \
147     ASSERT_OK(uv_inet_pton(AF_INET6, ADDR "%en1:1.2.3.4", &addr));            \
148 
149 #define TEST_BAD(ADDR)                                                        \
150     ASSERT_NE(0, uv_inet_pton(AF_INET6, ADDR, &addr));                        \
151     ASSERT_NE(0, uv_inet_pton(AF_INET6, ADDR "%en1", &addr));                 \
152     ASSERT_NE(0, uv_inet_pton(AF_INET6, ADDR "%%%%", &addr));                 \
153     ASSERT_NE(0, uv_inet_pton(AF_INET6, ADDR "%en1:1.2.3.4", &addr));         \
154 
TEST_IMPL(ip6_pton)155 TEST_IMPL(ip6_pton) {
156   struct in6_addr addr;
157 
158   GOOD_ADDR_LIST(TEST_GOOD)
159   BAD_ADDR_LIST(TEST_BAD)
160 
161   MAKE_VALGRIND_HAPPY(uv_default_loop());
162   return 0;
163 }
164 
165 #undef GOOD_ADDR_LIST
166 #undef BAD_ADDR_LIST
167 
TEST_IMPL(ip6_sin6_len)168 TEST_IMPL(ip6_sin6_len) {
169   struct sockaddr_in6 s;
170   ASSERT_OK(uv_ip6_addr("::", 0, &s));
171 #ifdef SIN6_LEN
172   ASSERT_EQ(s.sin6_len, sizeof(s));
173 #endif
174   return 0;
175 }
176