1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2022, Magnus Edenhill
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "test.h"
#include "rdkafka.h"
#ifndef _WIN32
#include <netdb.h>
#else
#define WIN32_MEAN_AND_LEAN
#include <winsock2.h>
#include <ws2ipdef.h>
#include <ws2tcpip.h>
#endif
/**
* @name Test a custom address resolution callback.
*
* The test sets bogus bootstrap.servers, uses the resolution callback to
* resolve to a bogus address, and then verifies that the address is passed
* to the connect callback. If the resolution callback is not invoked, or if the
* connect callback is not invoked with the output of the resolution callback,
* the test will fail.
*/
/**
* Stage of the test:
* 0: expecting resolve_cb to be invoked with TESTING_RESOLVE_CB:1234
* 1: expecting resolve_cb to be invoked with NULL, NULL
* 2: expecting connect_cb to invoked with socket address 127.1.2.3:57616
* 3: done
*/
static rd_atomic32_t stage;
/** Exposes current test struct (in TLS) to callbacks. */
static struct test *this_test;
static int resolve_cb(const char *node,
const char *service,
const struct addrinfo *hints,
struct addrinfo **res,
void *opaque) {
int32_t cnt;
test_curr = this_test;
cnt = rd_atomic32_get(&stage);
TEST_SAY("resolve_cb invoked: node=%s service=%s stage=%d\n", node,
service, cnt);
if (cnt == 0) {
/* Stage 0: return a bogus address. */
struct sockaddr_in *addr;
TEST_ASSERT(node != NULL);
TEST_ASSERT(strcmp(node, "TESTING_RESOLVE_CB") == 0,
"unexpected node: %s", node);
TEST_ASSERT(service != NULL);
TEST_ASSERT(strcmp(service, "1234") == 0,
"unexpected service: %s", service);
addr = calloc(1, sizeof(struct sockaddr_in));
addr->sin_family = AF_INET;
addr->sin_port = htons(4321);
addr->sin_addr.s_addr = htonl(0x7f010203) /* 127.1.2.3 */;
*res = calloc(1, sizeof(struct addrinfo));
(*res)->ai_family = AF_INET;
(*res)->ai_socktype = SOCK_STREAM;
(*res)->ai_protocol = IPPROTO_TCP;
(*res)->ai_addrlen = sizeof(struct sockaddr_in);
(*res)->ai_addr = (struct sockaddr *)addr;
} else if (cnt == 1) {
/* Stage 1: free the bogus address returned in stage 0. */
TEST_ASSERT(node == NULL);
TEST_ASSERT(service == NULL);
TEST_ASSERT(hints == NULL);
free((*res)->ai_addr);
free(*res);
} else {
/* Stage 2+: irrelevant, simply fail to resolve. */
return -1;
}
rd_atomic32_add(&stage, 1);
return 0;
}
static int connect_cb(int s,
const struct sockaddr *addr,
int addrlen,
const char *id,
void *opaque) {
/* Stage 3: assert address is expected bogus. */
int32_t cnt;
struct sockaddr_in *addr_in;
test_curr = this_test;
cnt = rd_atomic32_get(&stage);
TEST_SAY("connect_cb invoked: stage=%d\n", cnt);
TEST_ASSERT(cnt == 2, "connect_cb invoked in unexpected stage: %d",
cnt);
TEST_ASSERT(addr->sa_family == AF_INET,
"address has unexpected type: %d", addr->sa_family);
addr_in = (struct sockaddr_in *)(void *)addr;
TEST_ASSERT(addr_in->sin_port == htons(4321),
"address has unexpected port: %d",
ntohs(addr_in->sin_port));
TEST_ASSERT(addr_in->sin_addr.s_addr == htonl(0x7f010203),
"address has unexpected host: 0x%x",
ntohl(addr_in->sin_addr.s_addr));
rd_atomic32_add(&stage, 1);
/* The test has succeeded. Just report the connection as faile
* for simplicity. */
return -1;
}
int main_0136_resolve_cb(int argc, char **argv) {
rd_kafka_conf_t *conf;
rd_kafka_t *rk;
this_test = test_curr;
rd_atomic32_init(&stage, 0);
test_conf_init(&conf, NULL, 0);
rd_kafka_conf_set_resolve_cb(conf, resolve_cb);
rd_kafka_conf_set_connect_cb(conf, connect_cb);
TEST_SAY("Setting bogus broker list\n");
test_conf_set(conf, "bootstrap.servers", "TESTING_RESOLVE_CB:1234");
rk = test_create_handle(RD_KAFKA_PRODUCER, conf);
while (rd_atomic32_get(&stage) != 3)
rd_sleep(1);
rd_kafka_destroy(rk);
return 0;
}
|
