Lukas Straub | d3a0bb7 | 2021-03-30 20:13:35 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Tests for QEMU yank feature |
| 3 | * |
| 4 | * Copyright (c) Lukas Straub <lukasstraub2@web.de> |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | */ |
| 9 | |
| 10 | #include "qemu/osdep.h" |
| 11 | #include <glib/gstdio.h> |
| 12 | |
| 13 | #include "qemu/config-file.h" |
| 14 | #include "qemu/module.h" |
| 15 | #include "qemu/option.h" |
| 16 | #include "chardev/char-fe.h" |
| 17 | #include "sysemu/sysemu.h" |
| 18 | #include "qapi/error.h" |
| 19 | #include "qapi/qapi-commands-char.h" |
| 20 | #include "qapi/qapi-types-char.h" |
| 21 | #include "qapi/qapi-commands-yank.h" |
| 22 | #include "qapi/qapi-types-yank.h" |
| 23 | #include "io/channel-socket.h" |
| 24 | #include "socket-helpers.h" |
| 25 | |
| 26 | typedef struct { |
| 27 | SocketAddress *addr; |
| 28 | bool old_yank; |
| 29 | bool new_yank; |
| 30 | bool fail; |
| 31 | } CharChangeTestConfig; |
| 32 | |
| 33 | static int chardev_change(void *opaque) |
| 34 | { |
| 35 | return 0; |
| 36 | } |
| 37 | |
| 38 | static bool is_yank_instance_registered(void) |
| 39 | { |
| 40 | YankInstanceList *list; |
| 41 | bool ret; |
| 42 | |
| 43 | list = qmp_query_yank(&error_abort); |
| 44 | |
| 45 | ret = !!list; |
| 46 | |
| 47 | qapi_free_YankInstanceList(list); |
| 48 | |
| 49 | return ret; |
| 50 | } |
| 51 | |
| 52 | static gpointer accept_thread(gpointer data) |
| 53 | { |
| 54 | QIOChannelSocket *ioc = data; |
| 55 | QIOChannelSocket *cioc; |
| 56 | |
| 57 | cioc = qio_channel_socket_accept(ioc, &error_abort); |
| 58 | object_unref(OBJECT(cioc)); |
| 59 | |
| 60 | return NULL; |
| 61 | } |
| 62 | |
| 63 | static void char_change_test(gconstpointer opaque) |
| 64 | { |
| 65 | CharChangeTestConfig *conf = (gpointer) opaque; |
| 66 | SocketAddress *addr; |
| 67 | Chardev *chr; |
| 68 | CharBackend be; |
| 69 | ChardevReturn *ret; |
| 70 | QIOChannelSocket *ioc; |
| 71 | QemuThread thread; |
| 72 | |
| 73 | /* |
| 74 | * Setup a listener socket and determine its address |
| 75 | * so we know the TCP port for the client later |
| 76 | */ |
| 77 | ioc = qio_channel_socket_new(); |
| 78 | g_assert_nonnull(ioc); |
| 79 | qio_channel_socket_listen_sync(ioc, conf->addr, 1, &error_abort); |
| 80 | addr = qio_channel_socket_get_local_address(ioc, &error_abort); |
| 81 | g_assert_nonnull(addr); |
| 82 | |
| 83 | ChardevBackend backend[2] = { |
| 84 | /* doesn't support yank */ |
| 85 | { .type = CHARDEV_BACKEND_KIND_NULL }, |
| 86 | /* supports yank */ |
| 87 | { |
| 88 | .type = CHARDEV_BACKEND_KIND_SOCKET, |
| 89 | .u.socket.data = &(ChardevSocket) { |
| 90 | .addr = &(SocketAddressLegacy) { |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 91 | .type = SOCKET_ADDRESS_TYPE_INET, |
Lukas Straub | d3a0bb7 | 2021-03-30 20:13:35 +0200 | [diff] [blame] | 92 | .u.inet.data = &addr->u.inet |
| 93 | }, |
| 94 | .has_server = true, |
| 95 | .server = false |
| 96 | } |
| 97 | } }; |
| 98 | |
| 99 | ChardevBackend fail_backend[2] = { |
| 100 | /* doesn't support yank */ |
| 101 | { |
| 102 | .type = CHARDEV_BACKEND_KIND_UDP, |
| 103 | .u.udp.data = &(ChardevUdp) { |
| 104 | .remote = &(SocketAddressLegacy) { |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 105 | .type = SOCKET_ADDRESS_TYPE_UNIX, |
Lukas Straub | d3a0bb7 | 2021-03-30 20:13:35 +0200 | [diff] [blame] | 106 | .u.q_unix.data = &(UnixSocketAddress) { |
| 107 | .path = (char *)"" |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | }, |
| 112 | /* supports yank */ |
| 113 | { |
| 114 | .type = CHARDEV_BACKEND_KIND_SOCKET, |
| 115 | .u.socket.data = &(ChardevSocket) { |
| 116 | .addr = &(SocketAddressLegacy) { |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 117 | .type = SOCKET_ADDRESS_TYPE_INET, |
Lukas Straub | d3a0bb7 | 2021-03-30 20:13:35 +0200 | [diff] [blame] | 118 | .u.inet.data = &(InetSocketAddress) { |
| 119 | .host = (char *)"127.0.0.1", |
| 120 | .port = (char *)"0" |
| 121 | } |
| 122 | }, |
| 123 | .has_server = true, |
| 124 | .server = false |
| 125 | } |
| 126 | } }; |
| 127 | |
| 128 | g_assert(!is_yank_instance_registered()); |
| 129 | |
| 130 | if (conf->old_yank) { |
| 131 | qemu_thread_create(&thread, "accept", accept_thread, |
| 132 | ioc, QEMU_THREAD_JOINABLE); |
| 133 | } |
| 134 | |
| 135 | ret = qmp_chardev_add("chardev", &backend[conf->old_yank], &error_abort); |
| 136 | qapi_free_ChardevReturn(ret); |
| 137 | chr = qemu_chr_find("chardev"); |
| 138 | g_assert_nonnull(chr); |
| 139 | |
| 140 | g_assert(is_yank_instance_registered() == conf->old_yank); |
| 141 | |
| 142 | qemu_chr_wait_connected(chr, &error_abort); |
| 143 | if (conf->old_yank) { |
| 144 | qemu_thread_join(&thread); |
| 145 | } |
| 146 | |
| 147 | qemu_chr_fe_init(&be, chr, &error_abort); |
| 148 | /* allow chardev-change */ |
| 149 | qemu_chr_fe_set_handlers(&be, NULL, NULL, |
| 150 | NULL, chardev_change, NULL, NULL, true); |
| 151 | |
| 152 | if (conf->fail) { |
| 153 | g_setenv("QTEST_SILENT_ERRORS", "1", 1); |
| 154 | ret = qmp_chardev_change("chardev", &fail_backend[conf->new_yank], |
| 155 | NULL); |
| 156 | g_assert_null(ret); |
| 157 | g_assert(be.chr == chr); |
| 158 | g_assert(is_yank_instance_registered() == conf->old_yank); |
| 159 | g_unsetenv("QTEST_SILENT_ERRORS"); |
| 160 | } else { |
| 161 | if (conf->new_yank) { |
| 162 | qemu_thread_create(&thread, "accept", accept_thread, |
| 163 | ioc, QEMU_THREAD_JOINABLE); |
| 164 | } |
| 165 | ret = qmp_chardev_change("chardev", &backend[conf->new_yank], |
| 166 | &error_abort); |
| 167 | if (conf->new_yank) { |
| 168 | qemu_thread_join(&thread); |
| 169 | } |
| 170 | g_assert_nonnull(ret); |
| 171 | g_assert(be.chr != chr); |
| 172 | g_assert(is_yank_instance_registered() == conf->new_yank); |
| 173 | } |
| 174 | |
| 175 | object_unparent(OBJECT(be.chr)); |
| 176 | object_unref(OBJECT(ioc)); |
| 177 | qapi_free_ChardevReturn(ret); |
| 178 | qapi_free_SocketAddress(addr); |
| 179 | } |
| 180 | |
| 181 | static SocketAddress tcpaddr = { |
| 182 | .type = SOCKET_ADDRESS_TYPE_INET, |
| 183 | .u.inet.host = (char *)"127.0.0.1", |
| 184 | .u.inet.port = (char *)"0", |
| 185 | }; |
| 186 | |
| 187 | int main(int argc, char **argv) |
| 188 | { |
| 189 | bool has_ipv4, has_ipv6; |
| 190 | |
| 191 | qemu_init_main_loop(&error_abort); |
| 192 | socket_init(); |
| 193 | |
| 194 | g_test_init(&argc, &argv, NULL); |
| 195 | |
| 196 | if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) { |
| 197 | g_printerr("socket_check_protocol_support() failed\n"); |
| 198 | goto end; |
| 199 | } |
| 200 | |
| 201 | if (!has_ipv4) { |
| 202 | goto end; |
| 203 | } |
| 204 | |
| 205 | module_call_init(MODULE_INIT_QOM); |
| 206 | qemu_add_opts(&qemu_chardev_opts); |
| 207 | |
| 208 | g_test_add_data_func("/yank/char_change/success/to_yank", |
| 209 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 210 | .old_yank = false, |
| 211 | .new_yank = true, |
| 212 | .fail = false }, |
| 213 | char_change_test); |
| 214 | g_test_add_data_func("/yank/char_change/fail/to_yank", |
| 215 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 216 | .old_yank = false, |
| 217 | .new_yank = true, |
| 218 | .fail = true }, |
| 219 | char_change_test); |
| 220 | |
| 221 | g_test_add_data_func("/yank/char_change/success/yank_to_yank", |
| 222 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 223 | .old_yank = true, |
| 224 | .new_yank = true, |
| 225 | .fail = false }, |
| 226 | char_change_test); |
| 227 | g_test_add_data_func("/yank/char_change/fail/yank_to_yank", |
| 228 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 229 | .old_yank = true, |
| 230 | .new_yank = true, |
| 231 | .fail = true }, |
| 232 | char_change_test); |
| 233 | |
| 234 | g_test_add_data_func("/yank/char_change/success/from_yank", |
| 235 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 236 | .old_yank = true, |
| 237 | .new_yank = false, |
| 238 | .fail = false }, |
| 239 | char_change_test); |
| 240 | g_test_add_data_func("/yank/char_change/fail/from_yank", |
| 241 | &(CharChangeTestConfig) { .addr = &tcpaddr, |
| 242 | .old_yank = true, |
| 243 | .new_yank = false, |
| 244 | .fail = true }, |
| 245 | char_change_test); |
| 246 | |
| 247 | end: |
| 248 | return g_test_run(); |
| 249 | } |