tests/test-util-sockets.c

   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 Monitor *cur_mon;
  73 void monitor_init(Chardev *chr, int flags) {}
  74
  75
  76 static void test_socket_fd_pass_name_good(void)
  77 {
  78     SocketAddress addr;
  79     int fd;
  80
  81     cur_mon = g_malloc(1); /* Fake a monitor */
  82     mon_fdname = "myfd";
  83     mon_fd = qemu_socket(AF_INET, SOCK_STREAM, 0);
  84     g_assert_cmpint(mon_fd, >, STDERR_FILENO);
  85
  86     addr.type = SOCKET_ADDRESS_TYPE_FD;
  87     addr.u.fd.str = g_strdup(mon_fdname);
  88
  89     fd = socket_connect(&addr, &error_abort);
  90     g_assert_cmpint(fd, !=, -1);
  91     g_assert_cmpint(fd, !=, mon_fd);
  92     close(fd);
  93
  94     fd = socket_listen(&addr, &error_abort);
  95     g_assert_cmpint(fd, !=, -1);
  96     g_assert_cmpint(fd, !=, mon_fd);
  97     close(fd);
  98
  99     g_free(addr.u.fd.str);
 100     mon_fdname = NULL;
 101     close(mon_fd);
 102     mon_fd = -1;
 103     g_free(cur_mon);
 104     cur_mon = NULL;
 105 }
 106
 107 static void test_socket_fd_pass_name_bad(void)
 108 {
 109     SocketAddress addr;
 110     Error *err = NULL;
 111     int fd;
 112
 113     cur_mon = g_malloc(1); /* Fake a monitor */
 114     mon_fdname = "myfd";
 115     mon_fd = dup(STDOUT_FILENO);
 116     g_assert_cmpint(mon_fd, >, STDERR_FILENO);
 117
 118     addr.type = SOCKET_ADDRESS_TYPE_FD;
 119     addr.u.fd.str = g_strdup(mon_fdname);
 120
 121     fd = socket_connect(&addr, &err);
 122     g_assert_cmpint(fd, ==, -1);
 123     error_free_or_abort(&err);
 124
 125     fd = socket_listen(&addr, &err);
 126     g_assert_cmpint(fd, ==, -1);
 127     error_free_or_abort(&err);
 128
 129     g_free(addr.u.fd.str);
 130     mon_fdname = NULL;
 131     close(mon_fd);
 132     mon_fd = -1;
 133     g_free(cur_mon);
 134     cur_mon = NULL;
 135 }
 136
 137 static void test_socket_fd_pass_name_nomon(void)
 138 {
 139     SocketAddress addr;
 140     Error *err = NULL;
 141     int fd;
 142
 143     g_assert(cur_mon == NULL);
 144
 145     addr.type = SOCKET_ADDRESS_TYPE_FD;
 146     addr.u.fd.str = g_strdup("myfd");
 147
 148     fd = socket_connect(&addr, &err);
 149     g_assert_cmpint(fd, ==, -1);
 150     error_free_or_abort(&err);
 151
 152     fd = socket_listen(&addr, &err);
 153     g_assert_cmpint(fd, ==, -1);
 154     error_free_or_abort(&err);
 155
 156     g_free(addr.u.fd.str);
 157 }
 158
 159
 160 static void test_socket_fd_pass_num_good(void)
 161 {
 162     SocketAddress addr;
 163     int fd, sfd;
 164
 165     g_assert(cur_mon == NULL);
 166     sfd = qemu_socket(AF_INET, SOCK_STREAM, 0);
 167     g_assert_cmpint(sfd, >, STDERR_FILENO);
 168
 169     addr.type = SOCKET_ADDRESS_TYPE_FD;
 170     addr.u.fd.str = g_strdup_printf("%d", sfd);
 171
 172     fd = socket_connect(&addr, &error_abort);
 173     g_assert_cmpint(fd, ==, sfd);
 174
 175     fd = socket_listen(&addr, &error_abort);
 176     g_assert_cmpint(fd, ==, sfd);
 177
 178     g_free(addr.u.fd.str);
 179     close(sfd);
 180 }
 181
 182 static void test_socket_fd_pass_num_bad(void)
 183 {
 184     SocketAddress addr;
 185     Error *err = NULL;
 186     int fd, sfd;
 187
 188     g_assert(cur_mon == NULL);
 189     sfd = dup(STDOUT_FILENO);
 190
 191     addr.type = SOCKET_ADDRESS_TYPE_FD;
 192     addr.u.fd.str = g_strdup_printf("%d", sfd);
 193
 194     fd = socket_connect(&addr, &err);
 195     g_assert_cmpint(fd, ==, -1);
 196     error_free_or_abort(&err);
 197
 198     fd = socket_listen(&addr, &err);
 199     g_assert_cmpint(fd, ==, -1);
 200     error_free_or_abort(&err);
 201
 202     g_free(addr.u.fd.str);
 203     close(sfd);
 204 }
 205
 206 static void test_socket_fd_pass_num_nocli(void)
 207 {
 208     SocketAddress addr;
 209     Error *err = NULL;
 210     int fd;
 211
 212     cur_mon = g_malloc(1); /* Fake a monitor */
 213
 214     addr.type = SOCKET_ADDRESS_TYPE_FD;
 215     addr.u.fd.str = g_strdup_printf("%d", STDOUT_FILENO);
 216
 217     fd = socket_connect(&addr, &err);
 218     g_assert_cmpint(fd, ==, -1);
 219     error_free_or_abort(&err);
 220
 221     fd = socket_listen(&addr, &err);
 222     g_assert_cmpint(fd, ==, -1);
 223     error_free_or_abort(&err);
 224
 225     g_free(addr.u.fd.str);
 226 }
 227
 228
 229 int main(int argc, char **argv)
 230 {
 231     bool has_ipv4, has_ipv6;
 232
 233     socket_init();
 234
 235     g_test_init(&argc, &argv, NULL);
 236
 237     /* We're creating actual IPv4/6 sockets, so we should
 238      * check if the host running tests actually supports
 239      * each protocol to avoid breaking tests on machines
 240      * with either IPv4 or IPv6 disabled.
 241      */
 242     if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) {
 243         return 1;
 244     }
 245
 246     if (has_ipv4) {
 247         g_test_add_func("/util/socket/is-socket/bad",
 248                         test_fd_is_socket_bad);
 249         g_test_add_func("/util/socket/is-socket/good",
 250                         test_fd_is_socket_good);
 251         g_test_add_func("/socket/fd-pass/name/good",
 252                         test_socket_fd_pass_name_good);
 253         g_test_add_func("/socket/fd-pass/name/bad",
 254                         test_socket_fd_pass_name_bad);
 255         g_test_add_func("/socket/fd-pass/name/nomon",
 256                         test_socket_fd_pass_name_nomon);
 257         g_test_add_func("/socket/fd-pass/num/good",
 258                         test_socket_fd_pass_num_good);
 259         g_test_add_func("/socket/fd-pass/num/bad",
 260                         test_socket_fd_pass_num_bad);
 261         g_test_add_func("/socket/fd-pass/num/nocli",
 262                         test_socket_fd_pass_num_nocli);
 263     }
 264
 265     return g_test_run();
 266 }