xref: /libuv/test/test-tcp-connect6-error.c (revision 54d8364c)
1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to
5  * deal in the Software without restriction, including without limitation the
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7  * sell copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
19  * IN THE SOFTWARE.
20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 
28 
29 static int connect_cb_called = 0;
30 static int close_cb_called = 0;
31 
32 
connect_cb(uv_connect_t * handle,int status)33 static void connect_cb(uv_connect_t* handle, int status) {
34   ASSERT_NOT_NULL(handle);
35   connect_cb_called++;
36 }
37 
38 
close_cb(uv_handle_t * handle)39 static void close_cb(uv_handle_t* handle) {
40   ASSERT_NOT_NULL(handle);
41   close_cb_called++;
42 }
43 
44 
TEST_IMPL(tcp_connect6_error_fault)45 TEST_IMPL(tcp_connect6_error_fault) {
46   const char garbage[] =
47       "blah blah blah blah blah blah blah blah blah blah blah blah";
48   const struct sockaddr_in6* garbage_addr;
49   uv_tcp_t server;
50   int r;
51   uv_connect_t req;
52 
53   if (!can_ipv6())
54     RETURN_SKIP("IPv6 not supported");
55 
56   garbage_addr = (const struct sockaddr_in6*) &garbage;
57 
58   r = uv_tcp_init(uv_default_loop(), &server);
59   ASSERT_OK(r);
60   r = uv_tcp_connect(&req,
61                      &server,
62                      (const struct sockaddr*) garbage_addr,
63                      connect_cb);
64   ASSERT_EQ(r, UV_EINVAL);
65 
66   uv_close((uv_handle_t*)&server, close_cb);
67 
68   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
69 
70   ASSERT_OK(connect_cb_called);
71   ASSERT_EQ(1, close_cb_called);
72 
73   MAKE_VALGRIND_HAPPY(uv_default_loop());
74   return 0;
75 }
76 
77 
TEST_IMPL(tcp_connect6_link_local)78 TEST_IMPL(tcp_connect6_link_local) {
79   uv_interface_address_t* ifs;
80   uv_interface_address_t* p;
81   struct sockaddr_in6 addr;
82   uv_connect_t req;
83   uv_tcp_t server;
84   int ok;
85   int n;
86 
87   if (!can_ipv6())
88     RETURN_SKIP("IPv6 not supported");
89 
90 #if defined(__QEMU__)
91   /* qemu's sockaddr_in6 translation is broken pre-qemu 8.0.0
92    * when host endianness != guest endiannes.
93    * Fixed in https://github.com/qemu/qemu/commit/44cf6731d6b.
94    */
95   RETURN_SKIP("Test does not currently work in QEMU");
96 #endif  /* defined(__QEMU__) */
97 
98   /* Check there's an interface that routes link-local (fe80::/10) traffic. */
99   ASSERT_OK(uv_interface_addresses(&ifs, &n));
100   for (p = ifs; p < &ifs[n]; p++)
101     if (p->address.address6.sin6_family == AF_INET6)
102       if (!memcmp(&p->address.address6.sin6_addr, "\xfe\x80", 2))
103         break;
104   ok = (p < &ifs[n]);
105   uv_free_interface_addresses(ifs, n);
106 
107   if (!ok)
108     RETURN_SKIP("IPv6 link-local traffic not supported");
109 
110   ASSERT_OK(uv_ip6_addr("fe80::0bad:babe", 1337, &addr));
111   ASSERT_OK(uv_tcp_init(uv_default_loop(), &server));
112 
113   /* We're making two shaky assumptions here:
114    * 1. There is a network interface that routes IPv6 link-local traffic, and
115    * 2. There is no firewall rule that blackholes or otherwise hard-kills the
116    *    connection attempt to the address above, i.e., we don't expect the
117    *    connect() system call to fail synchronously.
118    */
119   ASSERT_OK(uv_tcp_connect(&req,
120                            &server,
121                            (struct sockaddr*) &addr,
122                            connect_cb));
123 
124   uv_close((uv_handle_t*) &server, NULL);
125   ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
126 
127   MAKE_VALGRIND_HAPPY(uv_default_loop());
128   return 0;
129 }
130