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
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28
29#define CHECK_HANDLE(handle) \
30 ASSERT((uv_udp_t*)(handle) == &client)
31
32static uv_udp_t client;
33static uv_timer_t timer;
34
35static int send_cb_called;
36static int recv_cb_called;
37static int close_cb_called;
38static int alloc_cb_called;
39static int timer_cb_called;
40
41
42static void alloc_cb(uv_handle_t* handle,
43 size_t suggested_size,
44 uv_buf_t* buf) {
45 static char slab[65536];
46 CHECK_HANDLE(handle);
47 ASSERT(suggested_size <= sizeof(slab));
48 buf->base = slab;
49 buf->len = sizeof(slab);
50 alloc_cb_called++;
51}
52
53
54static void close_cb(uv_handle_t* handle) {
55 ASSERT(1 == uv_is_closing(handle));
56 close_cb_called++;
57}
58
59
60static void send_cb(uv_udp_send_t* req, int status) {
61 ASSERT(req != NULL);
62 ASSERT(status == 0);
63 CHECK_HANDLE(req->handle);
64 send_cb_called++;
65}
66
67
68static void recv_cb(uv_udp_t* handle,
69 ssize_t nread,
70 const uv_buf_t* rcvbuf,
71 const struct sockaddr* addr,
72 unsigned flags) {
73 CHECK_HANDLE(handle);
74 recv_cb_called++;
75
76 if (nread < 0) {
77 ASSERT(0 && "unexpected error");
78 } else if (nread == 0) {
79 /* Returning unused buffer */
80 ASSERT(addr == NULL);
81 } else {
82 ASSERT(addr != NULL);
83 }
84}
85
86
87static void timer_cb(uv_timer_t* h) {
88 ASSERT(h == &timer);
89 timer_cb_called++;
90 uv_close((uv_handle_t*) &client, close_cb);
91 uv_close((uv_handle_t*) h, close_cb);
92}
93
94
95TEST_IMPL(udp_send_unreachable) {
96 struct sockaddr_in addr;
97 struct sockaddr_in addr2;
98 uv_udp_send_t req1, req2;
99 uv_buf_t buf;
100 int r;
101
102 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
103 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT_2, &addr2));
104
105 r = uv_timer_init( uv_default_loop(), &timer );
106 ASSERT(r == 0);
107
108 r = uv_timer_start( &timer, timer_cb, 1000, 0 );
109 ASSERT(r == 0);
110
111 r = uv_udp_init(uv_default_loop(), &client);
112 ASSERT(r == 0);
113
114 r = uv_udp_bind(&client, (const struct sockaddr*) &addr2, 0);
115 ASSERT(r == 0);
116
117 r = uv_udp_recv_start(&client, alloc_cb, recv_cb);
118 ASSERT(r == 0);
119
120 /* client sends "PING", then "PANG" */
121 buf = uv_buf_init("PING", 4);
122
123 r = uv_udp_send(&req1,
124 &client,
125 &buf,
126 1,
127 (const struct sockaddr*) &addr,
128 send_cb);
129 ASSERT(r == 0);
130
131 buf = uv_buf_init("PANG", 4);
132
133 r = uv_udp_send(&req2,
134 &client,
135 &buf,
136 1,
137 (const struct sockaddr*) &addr,
138 send_cb);
139 ASSERT(r == 0);
140
141 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
142
143 ASSERT(send_cb_called == 2);
144 ASSERT(recv_cb_called == alloc_cb_called);
145 ASSERT(timer_cb_called == 1);
146 ASSERT(close_cb_called == 2);
147
148 MAKE_VALGRIND_HAPPY();
149 return 0;
150}
151