xref: /libuv/test/test-tcp-bind-error.c (revision 011a1ac1)
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
6  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 
27 
28 static int connect_cb_called = 0;
29 static int close_cb_called = 0;
30 
31 
close_cb(uv_handle_t * handle)32 static void close_cb(uv_handle_t* handle) {
33   ASSERT_NOT_NULL(handle);
34   close_cb_called++;
35 }
36 
37 
connect_cb(uv_connect_t * req,int status)38 static void connect_cb(uv_connect_t* req, int status) {
39   ASSERT_EQ(status, UV_EADDRINUSE);
40   uv_close((uv_handle_t*) req->handle, close_cb);
41   connect_cb_called++;
42 }
43 
44 
TEST_IMPL(tcp_bind_error_addrinuse_connect)45 TEST_IMPL(tcp_bind_error_addrinuse_connect) {
46   struct sockaddr_in addr;
47   int addrlen;
48   uv_connect_t req;
49   uv_tcp_t conn;
50 
51   /* 127.0.0.1:<TEST_PORT> is already taken by tcp4_echo_server running in
52    * another process. uv_tcp_bind() and uv_tcp_connect() should still succeed
53    * (greatest common denominator across platforms) but the connect callback
54    * should receive an UV_EADDRINUSE error.
55    */
56   ASSERT_OK(uv_tcp_init(uv_default_loop(), &conn));
57   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
58   ASSERT_OK(uv_tcp_bind(&conn, (const struct sockaddr*) &addr, 0));
59 
60   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT + 1, &addr));
61   ASSERT_OK(uv_tcp_connect(&req,
62                            &conn,
63                            (const struct sockaddr*) &addr,
64                            connect_cb));
65 
66   addrlen = sizeof(addr);
67   ASSERT_EQ(UV_EADDRINUSE, uv_tcp_getsockname(&conn,
68                                               (struct sockaddr*) &addr,
69                                               &addrlen));
70 
71   ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
72   ASSERT_EQ(1, connect_cb_called);
73   ASSERT_EQ(1, close_cb_called);
74 
75   MAKE_VALGRIND_HAPPY(uv_default_loop());
76   return 0;
77 }
78 
79 
TEST_IMPL(tcp_bind_error_addrinuse_listen)80 TEST_IMPL(tcp_bind_error_addrinuse_listen) {
81   struct sockaddr_in addr;
82   uv_tcp_t server1, server2;
83   int r;
84 
85   ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
86   r = uv_tcp_init(uv_default_loop(), &server1);
87   ASSERT_OK(r);
88   r = uv_tcp_bind(&server1, (const struct sockaddr*) &addr, 0);
89   ASSERT_OK(r);
90 
91   r = uv_tcp_init(uv_default_loop(), &server2);
92   ASSERT_OK(r);
93   r = uv_tcp_bind(&server2, (const struct sockaddr*) &addr, 0);
94   ASSERT_OK(r);
95 
96   r = uv_listen((uv_stream_t*)&server1, 128, NULL);
97   ASSERT_OK(r);
98   r = uv_listen((uv_stream_t*)&server2, 128, NULL);
99   ASSERT_EQ(r, UV_EADDRINUSE);
100 
101   uv_close((uv_handle_t*)&server1, close_cb);
102   uv_close((uv_handle_t*)&server2, close_cb);
103 
104   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
105 
106   ASSERT_EQ(2, close_cb_called);
107 
108   MAKE_VALGRIND_HAPPY(uv_default_loop());
109   return 0;
110 }
111 
112 
TEST_IMPL(tcp_bind_error_addrnotavail_1)113 TEST_IMPL(tcp_bind_error_addrnotavail_1) {
114   struct sockaddr_in addr;
115   uv_tcp_t server;
116   int r;
117 
118   ASSERT_OK(uv_ip4_addr("127.255.255.255", TEST_PORT, &addr));
119 
120   r = uv_tcp_init(uv_default_loop(), &server);
121   ASSERT_OK(r);
122 
123   /* It seems that Linux is broken here - bind succeeds. */
124   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr, 0);
125   ASSERT(r == 0 || r == UV_EADDRNOTAVAIL);
126 
127   uv_close((uv_handle_t*)&server, close_cb);
128 
129   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
130 
131   ASSERT_EQ(1, close_cb_called);
132 
133   MAKE_VALGRIND_HAPPY(uv_default_loop());
134   return 0;
135 }
136 
137 
TEST_IMPL(tcp_bind_error_addrnotavail_2)138 TEST_IMPL(tcp_bind_error_addrnotavail_2) {
139   struct sockaddr_in addr;
140   uv_tcp_t server;
141   int r;
142 
143   ASSERT_OK(uv_ip4_addr("4.4.4.4", TEST_PORT, &addr));
144 
145   r = uv_tcp_init(uv_default_loop(), &server);
146   ASSERT_OK(r);
147   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr, 0);
148   ASSERT_EQ(r, UV_EADDRNOTAVAIL);
149 
150   uv_close((uv_handle_t*)&server, close_cb);
151 
152   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
153 
154   ASSERT_EQ(1, close_cb_called);
155 
156   MAKE_VALGRIND_HAPPY(uv_default_loop());
157   return 0;
158 }
159 
160 
TEST_IMPL(tcp_bind_error_fault)161 TEST_IMPL(tcp_bind_error_fault) {
162   char garbage[] =
163       "blah blah blah blah blah blah blah blah blah blah blah blah";
164   struct sockaddr_in* garbage_addr;
165   uv_tcp_t server;
166   int r;
167 
168   garbage_addr = (struct sockaddr_in*) &garbage;
169 
170   r = uv_tcp_init(uv_default_loop(), &server);
171   ASSERT_OK(r);
172   r = uv_tcp_bind(&server, (const struct sockaddr*) garbage_addr, 0);
173   ASSERT_EQ(r, UV_EINVAL);
174 
175   uv_close((uv_handle_t*)&server, close_cb);
176 
177   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
178 
179   ASSERT_EQ(1, close_cb_called);
180 
181   MAKE_VALGRIND_HAPPY(uv_default_loop());
182   return 0;
183 }
184 
185 /* Notes: On Linux uv_bind(server, NULL) will segfault the program.  */
186 
TEST_IMPL(tcp_bind_error_inval)187 TEST_IMPL(tcp_bind_error_inval) {
188   struct sockaddr_in addr1;
189   struct sockaddr_in addr2;
190   uv_tcp_t server;
191   int r;
192 
193   ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr1));
194   ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT_2, &addr2));
195 
196   r = uv_tcp_init(uv_default_loop(), &server);
197   ASSERT_OK(r);
198   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr1, 0);
199   ASSERT_OK(r);
200   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr2, 0);
201   ASSERT_EQ(r, UV_EINVAL);
202 
203   uv_close((uv_handle_t*)&server, close_cb);
204 
205   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
206 
207   ASSERT_EQ(1, close_cb_called);
208 
209   MAKE_VALGRIND_HAPPY(uv_default_loop());
210   return 0;
211 }
212 
213 
TEST_IMPL(tcp_bind_localhost_ok)214 TEST_IMPL(tcp_bind_localhost_ok) {
215   struct sockaddr_in addr;
216   uv_tcp_t server;
217   int r;
218 
219   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
220 
221   r = uv_tcp_init(uv_default_loop(), &server);
222   ASSERT_OK(r);
223   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr, 0);
224   ASSERT_OK(r);
225 
226   MAKE_VALGRIND_HAPPY(uv_default_loop());
227   return 0;
228 }
229 
230 
TEST_IMPL(tcp_bind_invalid_flags)231 TEST_IMPL(tcp_bind_invalid_flags) {
232   struct sockaddr_in addr;
233   uv_tcp_t server;
234   int r;
235 
236   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
237 
238   r = uv_tcp_init(uv_default_loop(), &server);
239   ASSERT_OK(r);
240   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr, UV_TCP_IPV6ONLY);
241   ASSERT_EQ(r, UV_EINVAL);
242 
243   MAKE_VALGRIND_HAPPY(uv_default_loop());
244   return 0;
245 }
246 
247 
TEST_IMPL(tcp_listen_without_bind)248 TEST_IMPL(tcp_listen_without_bind) {
249   int r;
250   uv_tcp_t server;
251 
252   r = uv_tcp_init(uv_default_loop(), &server);
253   ASSERT_OK(r);
254   r = uv_listen((uv_stream_t*)&server, 128, NULL);
255   ASSERT_OK(r);
256 
257   MAKE_VALGRIND_HAPPY(uv_default_loop());
258   return 0;
259 }
260 
261 
TEST_IMPL(tcp_bind_writable_flags)262 TEST_IMPL(tcp_bind_writable_flags) {
263   struct sockaddr_in addr;
264   uv_tcp_t server;
265   uv_buf_t buf;
266   uv_write_t write_req;
267   uv_shutdown_t shutdown_req;
268   int r;
269 
270   ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
271   r = uv_tcp_init(uv_default_loop(), &server);
272   ASSERT_OK(r);
273   r = uv_tcp_bind(&server, (const struct sockaddr*) &addr, 0);
274   ASSERT_OK(r);
275   r = uv_listen((uv_stream_t*)&server, 128, NULL);
276   ASSERT_OK(r);
277 
278   ASSERT_OK(uv_is_writable((uv_stream_t*) &server));
279   ASSERT_OK(uv_is_readable((uv_stream_t*) &server));
280 
281   buf = uv_buf_init("PING", 4);
282   r = uv_write(&write_req, (uv_stream_t*) &server, &buf, 1, NULL);
283   ASSERT_EQ(r, UV_EPIPE);
284   r = uv_shutdown(&shutdown_req, (uv_stream_t*) &server, NULL);
285   ASSERT_EQ(r, UV_ENOTCONN);
286   r = uv_read_start((uv_stream_t*) &server,
287                     (uv_alloc_cb) abort,
288                     (uv_read_cb) abort);
289   ASSERT_EQ(r, UV_ENOTCONN);
290 
291   uv_close((uv_handle_t*)&server, close_cb);
292 
293   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
294 
295   ASSERT_EQ(1, close_cb_called);
296 
297   MAKE_VALGRIND_HAPPY(uv_default_loop());
298   return 0;
299 }
300 
TEST_IMPL(tcp_bind_or_listen_error_after_close)301 TEST_IMPL(tcp_bind_or_listen_error_after_close) {
302   uv_tcp_t tcp;
303   struct sockaddr_in addr;
304 
305   memset(&addr, 0, sizeof(addr));
306   addr.sin_addr.s_addr = htonl(INADDR_ANY);
307   addr.sin_port = htons(9999);
308   addr.sin_family = AF_INET;
309 
310   ASSERT_OK(uv_tcp_init(uv_default_loop(), &tcp));
311   uv_close((uv_handle_t*) &tcp, NULL);
312   ASSERT_EQ(uv_tcp_bind(&tcp, (struct sockaddr*) &addr, 0), UV_EINVAL);
313   ASSERT_EQ(uv_listen((uv_stream_t*) &tcp, 5, NULL), UV_EINVAL);
314   ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
315   MAKE_VALGRIND_HAPPY(uv_default_loop());
316   return 0;
317 }
318