1 /* Copyright libuv project and 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
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28
29 #define CHECK_HANDLE(handle) \
30 ASSERT((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client)
31
32 static uv_udp_t server;
33 static uv_udp_t client;
34 static uv_buf_t buf;
35 static struct sockaddr_in6 lo_addr;
36
37 static int cl_send_cb_called;
38 static int sv_recv_cb_called;
39
40 static int close_cb_called;
41
42
alloc_cb(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)43 static void alloc_cb(uv_handle_t* handle,
44 size_t suggested_size,
45 uv_buf_t* buf) {
46 static char slab[65536];
47 CHECK_HANDLE(handle);
48 ASSERT_LE(suggested_size, sizeof(slab));
49 buf->base = slab;
50 buf->len = sizeof(slab);
51 }
52
53
close_cb(uv_handle_t * handle)54 static void close_cb(uv_handle_t* handle) {
55 CHECK_HANDLE(handle);
56 ASSERT(uv_is_closing(handle));
57 close_cb_called++;
58 }
59
60
cl_send_cb(uv_udp_send_t * req,int status)61 static void cl_send_cb(uv_udp_send_t* req, int status) {
62 int r;
63
64 ASSERT_NOT_NULL(req);
65 ASSERT_EQ(status, 0);
66 CHECK_HANDLE(req->handle);
67 if (++cl_send_cb_called == 1) {
68 uv_udp_connect(&client, NULL);
69 r = uv_udp_send(req, &client, &buf, 1, NULL, cl_send_cb);
70 ASSERT_EQ(r, UV_EDESTADDRREQ);
71 r = uv_udp_send(req,
72 &client,
73 &buf,
74 1,
75 (const struct sockaddr*) &lo_addr,
76 cl_send_cb);
77 ASSERT_EQ(r, 0);
78 }
79
80 }
81
82
sv_recv_cb(uv_udp_t * handle,ssize_t nread,const uv_buf_t * rcvbuf,const struct sockaddr * addr,unsigned flags)83 static void sv_recv_cb(uv_udp_t* handle,
84 ssize_t nread,
85 const uv_buf_t* rcvbuf,
86 const struct sockaddr* addr,
87 unsigned flags) {
88 if (nread > 0) {
89 ASSERT_EQ(nread, 4);
90 ASSERT_NOT_NULL(addr);
91 ASSERT_EQ(memcmp("EXIT", rcvbuf->base, nread), 0);
92 if (++sv_recv_cb_called == 4) {
93 uv_close((uv_handle_t*) &server, close_cb);
94 uv_close((uv_handle_t*) &client, close_cb);
95 }
96 }
97 }
98
99
TEST_IMPL(udp_connect6)100 TEST_IMPL(udp_connect6) {
101 #if defined(__PASE__)
102 RETURN_SKIP(
103 "IBMi PASE's UDP connection can not be disconnected with AF_UNSPEC.");
104 #endif
105 uv_udp_send_t req;
106 struct sockaddr_in6 ext_addr;
107 struct sockaddr_in6 tmp_addr;
108 int r;
109 int addrlen;
110
111 if (!can_ipv6())
112 RETURN_SKIP("IPv6 not supported");
113
114 ASSERT_EQ(0, uv_ip6_addr("::", TEST_PORT, &lo_addr));
115
116 r = uv_udp_init(uv_default_loop(), &server);
117 ASSERT_EQ(r, 0);
118
119 r = uv_udp_bind(&server, (const struct sockaddr*) &lo_addr, 0);
120 ASSERT_EQ(r, 0);
121
122 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
123 ASSERT_EQ(r, 0);
124
125 r = uv_udp_init(uv_default_loop(), &client);
126 ASSERT_EQ(r, 0);
127
128 buf = uv_buf_init("EXIT", 4);
129
130 /* connect() to INADDR_ANY fails on Windows wih WSAEADDRNOTAVAIL */
131 ASSERT_EQ(0, uv_ip6_addr("::", TEST_PORT, &tmp_addr));
132 r = uv_udp_connect(&client, (const struct sockaddr*) &tmp_addr);
133 #ifdef _WIN32
134 ASSERT_EQ(r, UV_EADDRNOTAVAIL);
135 #else
136 ASSERT_EQ(r, 0);
137 r = uv_udp_connect(&client, NULL);
138 ASSERT_EQ(r, 0);
139 #endif
140
141 ASSERT_EQ(0, uv_ip6_addr("2001:4860:4860::8888", TEST_PORT, &ext_addr));
142 ASSERT_EQ(0, uv_ip6_addr("::1", TEST_PORT, &lo_addr));
143
144 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr);
145 ASSERT_EQ(r, 0);
146 r = uv_udp_connect(&client, (const struct sockaddr*) &ext_addr);
147 ASSERT_EQ(r, UV_EISCONN);
148
149 addrlen = sizeof(tmp_addr);
150 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen);
151 ASSERT_EQ(r, 0);
152
153 /* To send messages in connected UDP sockets addr must be NULL */
154 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr);
155 ASSERT_EQ(r, UV_EISCONN);
156 r = uv_udp_try_send(&client, &buf, 1, NULL);
157 ASSERT_EQ(r, 4);
158 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &ext_addr);
159 ASSERT_EQ(r, UV_EISCONN);
160
161 r = uv_udp_connect(&client, NULL);
162 ASSERT_EQ(r, 0);
163 r = uv_udp_connect(&client, NULL);
164 ASSERT_EQ(r, UV_ENOTCONN);
165
166 addrlen = sizeof(tmp_addr);
167 r = uv_udp_getpeername(&client, (struct sockaddr*) &tmp_addr, &addrlen);
168 ASSERT_EQ(r, UV_ENOTCONN);
169
170 /* To send messages in disconnected UDP sockets addr must be set */
171 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &lo_addr);
172 ASSERT_EQ(r, 4);
173 r = uv_udp_try_send(&client, &buf, 1, NULL);
174 ASSERT_EQ(r, UV_EDESTADDRREQ);
175
176
177 r = uv_udp_connect(&client, (const struct sockaddr*) &lo_addr);
178 ASSERT_EQ(r, 0);
179 r = uv_udp_send(&req,
180 &client,
181 &buf,
182 1,
183 (const struct sockaddr*) &lo_addr,
184 cl_send_cb);
185 ASSERT_EQ(r, UV_EISCONN);
186 r = uv_udp_send(&req, &client, &buf, 1, NULL, cl_send_cb);
187 ASSERT_EQ(r, 0);
188
189 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
190
191 ASSERT_EQ(close_cb_called, 2);
192 ASSERT_EQ(sv_recv_cb_called, 4);
193 ASSERT_EQ(cl_send_cb_called, 2);
194
195 ASSERT_EQ(client.send_queue_size, 0);
196 ASSERT_EQ(server.send_queue_size, 0);
197
198 MAKE_VALGRIND_HAPPY();
199 return 0;
200 }
201