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1 /*
2 * Tests for util/qemu-sockets.c
3 *
4 * Copyright 2018 Red Hat, Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this library; if not, see <http://www.gnu.org/licenses/>.
18 *
19 */
20
21 #include "qemu/osdep.h"
22 #include "qemu-common.h"
23 #include "qemu/sockets.h"
24 #include "qapi/error.h"
25 #include "socket-helpers.h"
26 #include "monitor/monitor.h"
27
28 static void test_fd_is_socket_bad(void)
29 {
30 char *tmp = g_strdup("qemu-test-util-sockets-XXXXXX");
31 int fd = mkstemp(tmp);
32 if (fd != 0) {
33 unlink(tmp);
34 }
35 g_free(tmp);
36
37 g_assert(fd >= 0);
38
39 g_assert(!fd_is_socket(fd));
40 close(fd);
41 }
42
43 static void test_fd_is_socket_good(void)
44 {
45 int fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
46
47 g_assert(fd >= 0);
48
49 g_assert(fd_is_socket(fd));
50 close(fd);
51 }
52
53 static int mon_fd = -1;
54 static const char *mon_fdname;
55
56 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
57 {
58 g_assert(cur_mon);
59 g_assert(mon == cur_mon);
60 if (mon_fd == -1 || !g_str_equal(mon_fdname, fdname)) {
61 error_setg(errp, "No fd named %s", fdname);
62 return -1;
63 }
64 return dup(mon_fd);
65 }
66
67 /* Syms in libqemustub.a are discarded at .o file granularity.
68 * To replace monitor_get_fd() we must ensure everything in
69 * stubs/monitor.c is defined, to make sure monitor.o is discarded
70 * otherwise we get duplicate syms at link time.
71 */
72 __thread Monitor *cur_mon;
73 int monitor_vprintf(Monitor *mon, const char *fmt, va_list ap) { abort(); }
74 void monitor_init_qmp(Chardev *chr, bool pretty, Error **errp) {}
75 void monitor_init_hmp(Chardev *chr, bool use_readline, Error **errp) {}
76
77
78 static void test_socket_fd_pass_name_good(void)
79 {
80 SocketAddress addr;
81 int fd;
82
83 cur_mon = g_malloc(1); /* Fake a monitor */
84 mon_fdname = "myfd";
85 mon_fd = qemu_socket(AF_INET, SOCK_STREAM, 0);
86 g_assert_cmpint(mon_fd, >, STDERR_FILENO);
87
88 addr.type = SOCKET_ADDRESS_TYPE_FD;
89 addr.u.fd.str = g_strdup(mon_fdname);
90
91 fd = socket_connect(&addr, &error_abort);
92 g_assert_cmpint(fd, !=, -1);
93 g_assert_cmpint(fd, !=, mon_fd);
94 close(fd);
95
96 fd = socket_listen(&addr, 1, &error_abort);
97 g_assert_cmpint(fd, !=, -1);
98 g_assert_cmpint(fd, !=, mon_fd);
99 close(fd);
100
101 g_free(addr.u.fd.str);
102 mon_fdname = NULL;
103 close(mon_fd);
104 mon_fd = -1;
105 g_free(cur_mon);
106 cur_mon = NULL;
107 }
108
109 static void test_socket_fd_pass_name_bad(void)
110 {
111 SocketAddress addr;
112 Error *err = NULL;
113 int fd;
114
115 cur_mon = g_malloc(1); /* Fake a monitor */
116 mon_fdname = "myfd";
117 mon_fd = dup(STDOUT_FILENO);
118 g_assert_cmpint(mon_fd, >, STDERR_FILENO);
119
120 addr.type = SOCKET_ADDRESS_TYPE_FD;
121 addr.u.fd.str = g_strdup(mon_fdname);
122
123 fd = socket_connect(&addr, &err);
124 g_assert_cmpint(fd, ==, -1);
125 error_free_or_abort(&err);
126
127 fd = socket_listen(&addr, 1, &err);
128 g_assert_cmpint(fd, ==, -1);
129 error_free_or_abort(&err);
130
131 g_free(addr.u.fd.str);
132 mon_fdname = NULL;
133 close(mon_fd);
134 mon_fd = -1;
135 g_free(cur_mon);
136 cur_mon = NULL;
137 }
138
139 static void test_socket_fd_pass_name_nomon(void)
140 {
141 SocketAddress addr;
142 Error *err = NULL;
143 int fd;
144
145 g_assert(cur_mon == NULL);
146
147 addr.type = SOCKET_ADDRESS_TYPE_FD;
148 addr.u.fd.str = g_strdup("myfd");
149
150 fd = socket_connect(&addr, &err);
151 g_assert_cmpint(fd, ==, -1);
152 error_free_or_abort(&err);
153
154 fd = socket_listen(&addr, 1, &err);
155 g_assert_cmpint(fd, ==, -1);
156 error_free_or_abort(&err);
157
158 g_free(addr.u.fd.str);
159 }
160
161
162 static void test_socket_fd_pass_num_good(void)
163 {
164 SocketAddress addr;
165 int fd, sfd;
166
167 g_assert(cur_mon == NULL);
168 sfd = qemu_socket(AF_INET, SOCK_STREAM, 0);
169 g_assert_cmpint(sfd, >, STDERR_FILENO);
170
171 addr.type = SOCKET_ADDRESS_TYPE_FD;
172 addr.u.fd.str = g_strdup_printf("%d", sfd);
173
174 fd = socket_connect(&addr, &error_abort);
175 g_assert_cmpint(fd, ==, sfd);
176
177 fd = socket_listen(&addr, 1, &error_abort);
178 g_assert_cmpint(fd, ==, sfd);
179
180 g_free(addr.u.fd.str);
181 close(sfd);
182 }
183
184 static void test_socket_fd_pass_num_bad(void)
185 {
186 SocketAddress addr;
187 Error *err = NULL;
188 int fd, sfd;
189
190 g_assert(cur_mon == NULL);
191 sfd = dup(STDOUT_FILENO);
192
193 addr.type = SOCKET_ADDRESS_TYPE_FD;
194 addr.u.fd.str = g_strdup_printf("%d", sfd);
195
196 fd = socket_connect(&addr, &err);
197 g_assert_cmpint(fd, ==, -1);
198 error_free_or_abort(&err);
199
200 fd = socket_listen(&addr, 1, &err);
201 g_assert_cmpint(fd, ==, -1);
202 error_free_or_abort(&err);
203
204 g_free(addr.u.fd.str);
205 close(sfd);
206 }
207
208 static void test_socket_fd_pass_num_nocli(void)
209 {
210 SocketAddress addr;
211 Error *err = NULL;
212 int fd;
213
214 cur_mon = g_malloc(1); /* Fake a monitor */
215
216 addr.type = SOCKET_ADDRESS_TYPE_FD;
217 addr.u.fd.str = g_strdup_printf("%d", STDOUT_FILENO);
218
219 fd = socket_connect(&addr, &err);
220 g_assert_cmpint(fd, ==, -1);
221 error_free_or_abort(&err);
222
223 fd = socket_listen(&addr, 1, &err);
224 g_assert_cmpint(fd, ==, -1);
225 error_free_or_abort(&err);
226
227 g_free(addr.u.fd.str);
228 }
229
230
231 int main(int argc, char **argv)
232 {
233 bool has_ipv4, has_ipv6;
234
235 socket_init();
236
237 g_test_init(&argc, &argv, NULL);
238
239 /* We're creating actual IPv4/6 sockets, so we should
240 * check if the host running tests actually supports
241 * each protocol to avoid breaking tests on machines
242 * with either IPv4 or IPv6 disabled.
243 */
244 if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
245 g_printerr("socket_check_protocol_support() failed\n");
246 goto end;
247 }
248
249 if (has_ipv4) {
250 g_test_add_func("/util/socket/is-socket/bad",
251 test_fd_is_socket_bad);
252 g_test_add_func("/util/socket/is-socket/good",
253 test_fd_is_socket_good);
254 g_test_add_func("/socket/fd-pass/name/good",
255 test_socket_fd_pass_name_good);
256 g_test_add_func("/socket/fd-pass/name/bad",
257 test_socket_fd_pass_name_bad);
258 g_test_add_func("/socket/fd-pass/name/nomon",
259 test_socket_fd_pass_name_nomon);
260 g_test_add_func("/socket/fd-pass/num/good",
261 test_socket_fd_pass_num_good);
262 g_test_add_func("/socket/fd-pass/num/bad",
263 test_socket_fd_pass_num_bad);
264 g_test_add_func("/socket/fd-pass/num/nocli",
265 test_socket_fd_pass_num_nocli);
266 }
267
268 end:
269 return g_test_run();
270 }