Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1 | /* |
| 2 | * QEMU System Emulator |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
Markus Armbruster | 922a01a | 2018-02-01 12:18:46 +0100 | [diff] [blame] | 24 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 25 | #include "qemu/osdep.h" |
Marc-André Lureau | 8228e35 | 2017-01-26 17:19:46 +0400 | [diff] [blame] | 26 | #include "chardev/char.h" |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 27 | #include "io/channel-socket.h" |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 28 | #include "io/channel-websock.h" |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 29 | #include "qemu/error-report.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 30 | #include "qemu/module.h" |
Markus Armbruster | 922a01a | 2018-02-01 12:18:46 +0100 | [diff] [blame] | 31 | #include "qemu/option.h" |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 32 | #include "qapi/error.h" |
| 33 | #include "qapi/clone-visitor.h" |
Markus Armbruster | 9af2398 | 2018-02-11 10:36:01 +0100 | [diff] [blame] | 34 | #include "qapi/qapi-visit-sockets.h" |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 35 | #include "qemu/yank.h" |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 36 | #include "trace.h" |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 37 | |
Marc-André Lureau | 8228e35 | 2017-01-26 17:19:46 +0400 | [diff] [blame] | 38 | #include "chardev/char-io.h" |
Marc-André Lureau | fa670c8 | 2021-07-26 00:03:01 +0400 | [diff] [blame] | 39 | #include "chardev/char-socket.h" |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 40 | |
| 41 | static gboolean socket_reconnect_timeout(gpointer opaque); |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 42 | static void tcp_chr_telnet_init(Chardev *chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 43 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 44 | static void tcp_chr_change_state(SocketChardev *s, TCPChardevState state) |
| 45 | { |
| 46 | switch (state) { |
| 47 | case TCP_CHARDEV_STATE_DISCONNECTED: |
| 48 | break; |
| 49 | case TCP_CHARDEV_STATE_CONNECTING: |
| 50 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); |
| 51 | break; |
| 52 | case TCP_CHARDEV_STATE_CONNECTED: |
| 53 | assert(s->state == TCP_CHARDEV_STATE_CONNECTING); |
| 54 | break; |
| 55 | } |
| 56 | s->state = state; |
| 57 | } |
| 58 | |
Peter Xu | 2c716ba | 2018-01-04 22:18:35 +0800 | [diff] [blame] | 59 | static void tcp_chr_reconn_timer_cancel(SocketChardev *s) |
| 60 | { |
| 61 | if (s->reconnect_timer) { |
| 62 | g_source_destroy(s->reconnect_timer); |
| 63 | g_source_unref(s->reconnect_timer); |
| 64 | s->reconnect_timer = NULL; |
| 65 | } |
| 66 | } |
| 67 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 68 | static void qemu_chr_socket_restart_timer(Chardev *chr) |
| 69 | { |
| 70 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 71 | char *name; |
| 72 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 73 | assert(s->state == TCP_CHARDEV_STATE_DISCONNECTED); |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 74 | assert(!s->reconnect_timer); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 75 | name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label); |
Peter Xu | 2c716ba | 2018-01-04 22:18:35 +0800 | [diff] [blame] | 76 | s->reconnect_timer = qemu_chr_timeout_add_ms(chr, |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 77 | s->reconnect_time_ms, |
Peter Xu | 2c716ba | 2018-01-04 22:18:35 +0800 | [diff] [blame] | 78 | socket_reconnect_timeout, |
| 79 | chr); |
| 80 | g_source_set_name(s->reconnect_timer, name); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 81 | g_free(name); |
| 82 | } |
| 83 | |
| 84 | static void check_report_connect_error(Chardev *chr, |
| 85 | Error *err) |
| 86 | { |
| 87 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 88 | |
| 89 | if (!s->connect_err_reported) { |
Markus Armbruster | 5217f18 | 2020-05-05 12:19:03 +0200 | [diff] [blame] | 90 | error_reportf_err(err, |
| 91 | "Unable to connect character device %s: ", |
| 92 | chr->label); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 93 | s->connect_err_reported = true; |
lichun | ed4e0d2 | 2020-06-22 05:30:17 +0800 | [diff] [blame] | 94 | } else { |
| 95 | error_free(err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 96 | } |
| 97 | qemu_chr_socket_restart_timer(chr); |
| 98 | } |
| 99 | |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 100 | static void tcp_chr_accept(QIONetListener *listener, |
| 101 | QIOChannelSocket *cioc, |
| 102 | void *opaque); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 103 | |
Anton Nefedov | b0a335e | 2017-02-02 17:26:29 +0300 | [diff] [blame] | 104 | static int tcp_chr_read_poll(void *opaque); |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 105 | static void tcp_chr_disconnect_locked(Chardev *chr); |
Anton Nefedov | b0a335e | 2017-02-02 17:26:29 +0300 | [diff] [blame] | 106 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 107 | /* Called with chr_write_lock held. */ |
| 108 | static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len) |
| 109 | { |
| 110 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 111 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 112 | if (s->state == TCP_CHARDEV_STATE_CONNECTED) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 113 | int ret = io_channel_send_full(s->ioc, buf, len, |
| 114 | s->write_msgfds, |
| 115 | s->write_msgfds_num); |
| 116 | |
xinhua.Cao | 81e3493 | 2018-07-04 11:36:42 +0800 | [diff] [blame] | 117 | /* free the written msgfds in any cases |
| 118 | * other than ret < 0 && errno == EAGAIN |
| 119 | */ |
| 120 | if (!(ret < 0 && EAGAIN == errno) |
| 121 | && s->write_msgfds_num) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 122 | g_free(s->write_msgfds); |
| 123 | s->write_msgfds = 0; |
| 124 | s->write_msgfds_num = 0; |
| 125 | } |
| 126 | |
Anton Nefedov | b0a335e | 2017-02-02 17:26:29 +0300 | [diff] [blame] | 127 | if (ret < 0 && errno != EAGAIN) { |
| 128 | if (tcp_chr_read_poll(chr) <= 0) { |
Dima Stepanov | 2710944 | 2020-05-28 12:11:18 +0300 | [diff] [blame] | 129 | /* Perform disconnect and return error. */ |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 130 | trace_chr_socket_poll_err(chr, chr->label); |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 131 | tcp_chr_disconnect_locked(chr); |
Anton Nefedov | b0a335e | 2017-02-02 17:26:29 +0300 | [diff] [blame] | 132 | } /* else let the read handler finish it properly */ |
| 133 | } |
| 134 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 135 | return ret; |
| 136 | } else { |
Dima Stepanov | 2710944 | 2020-05-28 12:11:18 +0300 | [diff] [blame] | 137 | /* Indicate an error. */ |
| 138 | errno = EIO; |
| 139 | return -1; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 140 | } |
| 141 | } |
| 142 | |
| 143 | static int tcp_chr_read_poll(void *opaque) |
| 144 | { |
| 145 | Chardev *chr = CHARDEV(opaque); |
| 146 | SocketChardev *s = SOCKET_CHARDEV(opaque); |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 147 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 148 | return 0; |
| 149 | } |
| 150 | s->max_size = qemu_chr_be_can_write(chr); |
| 151 | return s->max_size; |
| 152 | } |
| 153 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 154 | static void tcp_chr_process_IAC_bytes(Chardev *chr, |
| 155 | SocketChardev *s, |
| 156 | uint8_t *buf, int *size) |
| 157 | { |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 158 | /* Handle any telnet or tn3270 client's basic IAC options. |
| 159 | * For telnet options, it satisfies char by char mode with no echo. |
| 160 | * For tn3270 options, it satisfies binary mode with EOR. |
| 161 | * All IAC options will be removed from the buf and the do_opt |
| 162 | * pointer will be used to track the state of the width of the |
| 163 | * IAC information. |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 164 | * |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 165 | * RFC854: "All TELNET commands consist of at least a two byte sequence. |
| 166 | * The commands dealing with option negotiation are three byte sequences, |
| 167 | * the third byte being the code for the option referenced." |
| 168 | * "IAC BREAK", "IAC IP", "IAC NOP" and the double IAC are two bytes. |
| 169 | * "IAC SB", "IAC SE" and "IAC EOR" are saved to split up data boundary |
| 170 | * for tn3270. |
| 171 | * NOP, Break and Interrupt Process(IP) might be encountered during a TN3270 |
| 172 | * session, and NOP and IP need to be done later. |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 173 | */ |
| 174 | |
| 175 | int i; |
| 176 | int j = 0; |
| 177 | |
| 178 | for (i = 0; i < *size; i++) { |
| 179 | if (s->do_telnetopt > 1) { |
| 180 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 181 | /* Double IAC means send an IAC */ |
| 182 | if (j != i) { |
| 183 | buf[j] = buf[i]; |
| 184 | } |
| 185 | j++; |
| 186 | s->do_telnetopt = 1; |
| 187 | } else { |
| 188 | if ((unsigned char)buf[i] == IAC_BREAK |
| 189 | && s->do_telnetopt == 2) { |
| 190 | /* Handle IAC break commands by sending a serial break */ |
| 191 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
| 192 | s->do_telnetopt++; |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 193 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_EOR |
| 194 | || (unsigned char)buf[i] == IAC_SB |
| 195 | || (unsigned char)buf[i] == IAC_SE) |
| 196 | && s->do_telnetopt == 2) { |
| 197 | buf[j++] = IAC; |
| 198 | buf[j++] = buf[i]; |
| 199 | s->do_telnetopt++; |
| 200 | } else if (s->is_tn3270 && ((unsigned char)buf[i] == IAC_IP |
| 201 | || (unsigned char)buf[i] == IAC_NOP) |
| 202 | && s->do_telnetopt == 2) { |
| 203 | /* TODO: IP and NOP need to be implemented later. */ |
| 204 | s->do_telnetopt++; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 205 | } |
| 206 | s->do_telnetopt++; |
| 207 | } |
| 208 | if (s->do_telnetopt >= 4) { |
| 209 | s->do_telnetopt = 1; |
| 210 | } |
| 211 | } else { |
| 212 | if ((unsigned char)buf[i] == IAC) { |
| 213 | s->do_telnetopt = 2; |
| 214 | } else { |
| 215 | if (j != i) { |
| 216 | buf[j] = buf[i]; |
| 217 | } |
| 218 | j++; |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | *size = j; |
| 223 | } |
| 224 | |
| 225 | static int tcp_get_msgfds(Chardev *chr, int *fds, int num) |
| 226 | { |
| 227 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 228 | |
| 229 | int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num; |
| 230 | |
| 231 | assert(num <= TCP_MAX_FDS); |
| 232 | |
| 233 | if (to_copy) { |
| 234 | int i; |
| 235 | |
| 236 | memcpy(fds, s->read_msgfds, to_copy * sizeof(int)); |
| 237 | |
| 238 | /* Close unused fds */ |
| 239 | for (i = to_copy; i < s->read_msgfds_num; i++) { |
| 240 | close(s->read_msgfds[i]); |
| 241 | } |
| 242 | |
| 243 | g_free(s->read_msgfds); |
| 244 | s->read_msgfds = 0; |
| 245 | s->read_msgfds_num = 0; |
| 246 | } |
| 247 | |
| 248 | return to_copy; |
| 249 | } |
| 250 | |
| 251 | static int tcp_set_msgfds(Chardev *chr, int *fds, int num) |
| 252 | { |
| 253 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 254 | |
| 255 | /* clear old pending fd array */ |
| 256 | g_free(s->write_msgfds); |
| 257 | s->write_msgfds = NULL; |
| 258 | s->write_msgfds_num = 0; |
| 259 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 260 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 261 | !qio_channel_has_feature(s->ioc, |
| 262 | QIO_CHANNEL_FEATURE_FD_PASS)) { |
| 263 | return -1; |
| 264 | } |
| 265 | |
| 266 | if (num) { |
| 267 | s->write_msgfds = g_new(int, num); |
| 268 | memcpy(s->write_msgfds, fds, num * sizeof(int)); |
| 269 | } |
| 270 | |
| 271 | s->write_msgfds_num = num; |
| 272 | |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len) |
| 277 | { |
| 278 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 279 | struct iovec iov = { .iov_base = buf, .iov_len = len }; |
| 280 | int ret; |
| 281 | size_t i; |
| 282 | int *msgfds = NULL; |
| 283 | size_t msgfds_num = 0; |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 284 | Error *err = NULL; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 285 | |
| 286 | if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) { |
| 287 | ret = qio_channel_readv_full(s->ioc, &iov, 1, |
| 288 | &msgfds, &msgfds_num, |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 289 | 0, &err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 290 | } else { |
| 291 | ret = qio_channel_readv_full(s->ioc, &iov, 1, |
| 292 | NULL, NULL, |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 293 | 0, &err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 294 | } |
| 295 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 296 | if (msgfds_num) { |
| 297 | /* close and clean read_msgfds */ |
| 298 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 299 | close(s->read_msgfds[i]); |
| 300 | } |
| 301 | |
| 302 | if (s->read_msgfds_num) { |
| 303 | g_free(s->read_msgfds); |
| 304 | } |
| 305 | |
| 306 | s->read_msgfds = msgfds; |
| 307 | s->read_msgfds_num = msgfds_num; |
| 308 | } |
| 309 | |
| 310 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 311 | int fd = s->read_msgfds[i]; |
| 312 | if (fd < 0) { |
| 313 | continue; |
| 314 | } |
| 315 | |
| 316 | /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ |
Marc-André Lureau | ff5927b | 2022-04-25 17:33:47 +0400 | [diff] [blame] | 317 | qemu_socket_set_block(fd); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 318 | |
| 319 | #ifndef MSG_CMSG_CLOEXEC |
| 320 | qemu_set_cloexec(fd); |
| 321 | #endif |
| 322 | } |
| 323 | |
Roman Kagan | e879750 | 2021-11-11 18:33:46 +0300 | [diff] [blame] | 324 | if (ret == QIO_CHANNEL_ERR_BLOCK) { |
| 325 | errno = EAGAIN; |
| 326 | ret = -1; |
| 327 | } else if (ret == -1) { |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 328 | trace_chr_socket_recv_err(chr, chr->label, error_get_pretty(err)); |
| 329 | error_free(err); |
Roman Kagan | e879750 | 2021-11-11 18:33:46 +0300 | [diff] [blame] | 330 | errno = EIO; |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 331 | } else if (ret == 0) { |
| 332 | trace_chr_socket_recv_eof(chr, chr->label); |
Roman Kagan | e879750 | 2021-11-11 18:33:46 +0300 | [diff] [blame] | 333 | } |
| 334 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 335 | return ret; |
| 336 | } |
| 337 | |
| 338 | static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond) |
| 339 | { |
| 340 | SocketChardev *s = SOCKET_CHARDEV(chr); |
Pavel Dovgalyuk | 6585b16 | 2021-02-09 08:49:30 +0300 | [diff] [blame] | 341 | if (!s->ioc) { |
| 342 | return NULL; |
| 343 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 344 | return qio_channel_create_watch(s->ioc, cond); |
| 345 | } |
| 346 | |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 347 | static void remove_hup_source(SocketChardev *s) |
| 348 | { |
| 349 | if (s->hup_source != NULL) { |
| 350 | g_source_destroy(s->hup_source); |
| 351 | g_source_unref(s->hup_source); |
| 352 | s->hup_source = NULL; |
| 353 | } |
| 354 | } |
| 355 | |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 356 | static void char_socket_yank_iochannel(void *opaque) |
| 357 | { |
| 358 | QIOChannel *ioc = QIO_CHANNEL(opaque); |
| 359 | |
| 360 | qio_channel_shutdown(ioc, QIO_CHANNEL_SHUTDOWN_BOTH, NULL); |
| 361 | } |
| 362 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 363 | static void tcp_chr_free_connection(Chardev *chr) |
| 364 | { |
| 365 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 366 | int i; |
| 367 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 368 | if (s->read_msgfds_num) { |
| 369 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 370 | close(s->read_msgfds[i]); |
| 371 | } |
| 372 | g_free(s->read_msgfds); |
| 373 | s->read_msgfds = NULL; |
| 374 | s->read_msgfds_num = 0; |
| 375 | } |
| 376 | |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 377 | remove_hup_source(s); |
Klim Kireev | a8aa619 | 2018-01-25 16:51:29 +0300 | [diff] [blame] | 378 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 379 | tcp_set_msgfds(chr, NULL, 0); |
zhanghailiang | b19456d | 2017-04-19 09:15:32 +0800 | [diff] [blame] | 380 | remove_fd_in_watch(chr); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 381 | if (s->registered_yank && |
| 382 | (s->state == TCP_CHARDEV_STATE_CONNECTING |
| 383 | || s->state == TCP_CHARDEV_STATE_CONNECTED)) { |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 384 | yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 385 | char_socket_yank_iochannel, |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 386 | QIO_CHANNEL(s->sioc)); |
| 387 | } |
Daniel P. Berrangé | cb8ded0 | 2024-01-05 16:09:52 +0000 | [diff] [blame] | 388 | |
| 389 | if (s->ioc) { |
| 390 | qio_channel_close(s->ioc, NULL); |
| 391 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 392 | object_unref(OBJECT(s->sioc)); |
| 393 | s->sioc = NULL; |
| 394 | object_unref(OBJECT(s->ioc)); |
| 395 | s->ioc = NULL; |
| 396 | g_free(chr->filename); |
| 397 | chr->filename = NULL; |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 398 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 399 | } |
| 400 | |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 401 | static const char *qemu_chr_socket_protocol(SocketChardev *s) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 402 | { |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 403 | if (s->is_telnet) { |
| 404 | return "telnet"; |
| 405 | } |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 406 | return s->is_websock ? "websocket" : "tcp"; |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 407 | } |
| 408 | |
| 409 | static char *qemu_chr_socket_address(SocketChardev *s, const char *prefix) |
| 410 | { |
| 411 | switch (s->addr->type) { |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 412 | case SOCKET_ADDRESS_TYPE_INET: |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 413 | return g_strdup_printf("%s%s:%s:%s%s", prefix, |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 414 | qemu_chr_socket_protocol(s), |
| 415 | s->addr->u.inet.host, |
| 416 | s->addr->u.inet.port, |
Paolo Bonzini | 9d902d5 | 2021-02-25 12:05:22 +0100 | [diff] [blame] | 417 | s->is_listen ? ",server=on" : ""); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 418 | break; |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 419 | case SOCKET_ADDRESS_TYPE_UNIX: |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 420 | { |
| 421 | const char *tight = "", *abstract = ""; |
| 422 | UnixSocketAddress *sa = &s->addr->u.q_unix; |
| 423 | |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 424 | #ifdef CONFIG_LINUX |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 425 | if (sa->has_abstract && sa->abstract) { |
Marc-André Lureau | 30f80be | 2021-07-21 16:55:53 +0400 | [diff] [blame] | 426 | abstract = ",abstract=on"; |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 427 | if (sa->has_tight && sa->tight) { |
Marc-André Lureau | 30f80be | 2021-07-21 16:55:53 +0400 | [diff] [blame] | 428 | tight = ",tight=on"; |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 429 | } |
| 430 | } |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 431 | #endif |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 432 | |
| 433 | return g_strdup_printf("%sunix:%s%s%s%s", prefix, sa->path, |
| 434 | abstract, tight, |
Paolo Bonzini | 9d902d5 | 2021-02-25 12:05:22 +0100 | [diff] [blame] | 435 | s->is_listen ? ",server=on" : ""); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 436 | break; |
Markus Armbruster | dea7cd1 | 2020-11-02 10:44:20 +0100 | [diff] [blame] | 437 | } |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 438 | case SOCKET_ADDRESS_TYPE_FD: |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 439 | return g_strdup_printf("%sfd:%s%s", prefix, s->addr->u.fd.str, |
Paolo Bonzini | 9d902d5 | 2021-02-25 12:05:22 +0100 | [diff] [blame] | 440 | s->is_listen ? ",server=on" : ""); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 441 | break; |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 442 | case SOCKET_ADDRESS_TYPE_VSOCK: |
Markus Armbruster | d2e49aa | 2017-03-30 19:43:10 +0200 | [diff] [blame] | 443 | return g_strdup_printf("%svsock:%s:%s", prefix, |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 444 | s->addr->u.vsock.cid, |
| 445 | s->addr->u.vsock.port); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 446 | default: |
| 447 | abort(); |
| 448 | } |
| 449 | } |
| 450 | |
Marc-André Lureau | bbcde96 | 2016-12-20 15:32:31 +0100 | [diff] [blame] | 451 | static void update_disconnected_filename(SocketChardev *s) |
| 452 | { |
| 453 | Chardev *chr = CHARDEV(s); |
| 454 | |
| 455 | g_free(chr->filename); |
Marc-André Lureau | 90a6d17 | 2017-07-04 18:53:35 +0200 | [diff] [blame] | 456 | if (s->addr) { |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 457 | chr->filename = qemu_chr_socket_address(s, "disconnected:"); |
Marc-André Lureau | 90a6d17 | 2017-07-04 18:53:35 +0200 | [diff] [blame] | 458 | } else { |
| 459 | chr->filename = g_strdup("disconnected:socket"); |
| 460 | } |
Marc-André Lureau | bbcde96 | 2016-12-20 15:32:31 +0100 | [diff] [blame] | 461 | } |
| 462 | |
Daniel P. Berrange | 9cca757 | 2017-10-05 16:50:57 +0100 | [diff] [blame] | 463 | /* NB may be called even if tcp_chr_connect has not been |
| 464 | * reached, due to TLS or telnet initialization failure, |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 465 | * so can *not* assume s->state == TCP_CHARDEV_STATE_CONNECTED |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 466 | * This must be called with chr->chr_write_lock held. |
Daniel P. Berrange | 9cca757 | 2017-10-05 16:50:57 +0100 | [diff] [blame] | 467 | */ |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 468 | static void tcp_chr_disconnect_locked(Chardev *chr) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 469 | { |
| 470 | SocketChardev *s = SOCKET_CHARDEV(chr); |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 471 | bool emit_close = s->state == TCP_CHARDEV_STATE_CONNECTED; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 472 | |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 473 | trace_chr_socket_disconnect(chr, chr->label); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 474 | tcp_chr_free_connection(chr); |
| 475 | |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 476 | if (s->listener) { |
Peter Xu | 3da9de5 | 2018-03-06 13:33:14 +0800 | [diff] [blame] | 477 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, |
| 478 | chr, NULL, chr->gcontext); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 479 | } |
Marc-André Lureau | bbcde96 | 2016-12-20 15:32:31 +0100 | [diff] [blame] | 480 | update_disconnected_filename(s); |
Daniel P. Berrange | 9cca757 | 2017-10-05 16:50:57 +0100 | [diff] [blame] | 481 | if (emit_close) { |
| 482 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 483 | } |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 484 | if (s->reconnect_time_ms && !s->reconnect_timer) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 485 | qemu_chr_socket_restart_timer(chr); |
| 486 | } |
| 487 | } |
| 488 | |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 489 | static void tcp_chr_disconnect(Chardev *chr) |
| 490 | { |
| 491 | qemu_mutex_lock(&chr->chr_write_lock); |
| 492 | tcp_chr_disconnect_locked(chr); |
| 493 | qemu_mutex_unlock(&chr->chr_write_lock); |
| 494 | } |
| 495 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 496 | static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque) |
| 497 | { |
| 498 | Chardev *chr = CHARDEV(opaque); |
| 499 | SocketChardev *s = SOCKET_CHARDEV(opaque); |
| 500 | uint8_t buf[CHR_READ_BUF_LEN]; |
| 501 | int len, size; |
| 502 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 503 | if ((s->state != TCP_CHARDEV_STATE_CONNECTED) || |
| 504 | s->max_size <= 0) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 505 | return TRUE; |
| 506 | } |
Daniel P. Berrangé | e8ee827 | 2024-03-18 13:03:19 +0000 | [diff] [blame] | 507 | len = sizeof(buf); |
| 508 | if (len > s->max_size) { |
| 509 | len = s->max_size; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 510 | } |
| 511 | size = tcp_chr_recv(chr, (void *)buf, len); |
Daniel P. Berrangé | c863fde | 2018-02-22 12:13:51 +0000 | [diff] [blame] | 512 | if (size == 0 || (size == -1 && errno != EAGAIN)) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 513 | /* connection closed */ |
| 514 | tcp_chr_disconnect(chr); |
| 515 | } else if (size > 0) { |
| 516 | if (s->do_telnetopt) { |
| 517 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 518 | } |
| 519 | if (size > 0) { |
| 520 | qemu_chr_be_write(chr, buf, size); |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | return TRUE; |
| 525 | } |
| 526 | |
Klim Kireev | a8aa619 | 2018-01-25 16:51:29 +0300 | [diff] [blame] | 527 | static gboolean tcp_chr_hup(QIOChannel *channel, |
| 528 | GIOCondition cond, |
| 529 | void *opaque) |
| 530 | { |
| 531 | Chardev *chr = CHARDEV(opaque); |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 532 | trace_chr_socket_hangup(chr, chr->label); |
Klim Kireev | a8aa619 | 2018-01-25 16:51:29 +0300 | [diff] [blame] | 533 | tcp_chr_disconnect(chr); |
| 534 | return G_SOURCE_REMOVE; |
| 535 | } |
| 536 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 537 | static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len) |
| 538 | { |
| 539 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 540 | int size; |
Roman Kagan | 6662650 | 2021-11-11 18:33:47 +0300 | [diff] [blame] | 541 | int saved_errno; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 542 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 543 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 544 | return 0; |
| 545 | } |
| 546 | |
Marc-André Lureau | bcdeb9b | 2017-07-06 19:03:53 +0200 | [diff] [blame] | 547 | qio_channel_set_blocking(s->ioc, true, NULL); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 548 | size = tcp_chr_recv(chr, (void *) buf, len); |
Roman Kagan | 6662650 | 2021-11-11 18:33:47 +0300 | [diff] [blame] | 549 | saved_errno = errno; |
Sai Pavan Boddu | 4d1d460 | 2020-04-19 15:21:40 +0530 | [diff] [blame] | 550 | if (s->state != TCP_CHARDEV_STATE_DISCONNECTED) { |
| 551 | qio_channel_set_blocking(s->ioc, false, NULL); |
| 552 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 553 | if (size == 0) { |
| 554 | /* connection closed */ |
| 555 | tcp_chr_disconnect(chr); |
| 556 | } |
| 557 | |
Roman Kagan | 6662650 | 2021-11-11 18:33:47 +0300 | [diff] [blame] | 558 | errno = saved_errno; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 559 | return size; |
| 560 | } |
| 561 | |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 562 | static char *qemu_chr_compute_filename(SocketChardev *s) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 563 | { |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 564 | struct sockaddr_storage *ss = &s->sioc->localAddr; |
| 565 | struct sockaddr_storage *ps = &s->sioc->remoteAddr; |
| 566 | socklen_t ss_len = s->sioc->localAddrLen; |
| 567 | socklen_t ps_len = s->sioc->remoteAddrLen; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 568 | char shost[NI_MAXHOST], sserv[NI_MAXSERV]; |
| 569 | char phost[NI_MAXHOST], pserv[NI_MAXSERV]; |
| 570 | const char *left = "", *right = ""; |
| 571 | |
| 572 | switch (ss->ss_family) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 573 | case AF_UNIX: |
| 574 | return g_strdup_printf("unix:%s%s", |
| 575 | ((struct sockaddr_un *)(ss))->sun_path, |
Paolo Bonzini | 9d902d5 | 2021-02-25 12:05:22 +0100 | [diff] [blame] | 576 | s->is_listen ? ",server=on" : ""); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 577 | case AF_INET6: |
| 578 | left = "["; |
| 579 | right = "]"; |
| 580 | /* fall through */ |
| 581 | case AF_INET: |
| 582 | getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost), |
| 583 | sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV); |
| 584 | getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost), |
| 585 | pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV); |
| 586 | return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s", |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 587 | qemu_chr_socket_protocol(s), |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 588 | left, shost, right, sserv, |
Paolo Bonzini | 9d902d5 | 2021-02-25 12:05:22 +0100 | [diff] [blame] | 589 | s->is_listen ? ",server=on" : "", |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 590 | left, phost, right, pserv); |
| 591 | |
| 592 | default: |
| 593 | return g_strdup_printf("unknown"); |
| 594 | } |
| 595 | } |
| 596 | |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 597 | static void update_ioc_handlers(SocketChardev *s) |
| 598 | { |
| 599 | Chardev *chr = CHARDEV(s); |
| 600 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 601 | if (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 602 | return; |
| 603 | } |
| 604 | |
| 605 | remove_fd_in_watch(chr); |
| 606 | chr->gsource = io_add_watch_poll(chr, s->ioc, |
| 607 | tcp_chr_read_poll, |
| 608 | tcp_chr_read, chr, |
| 609 | chr->gcontext); |
| 610 | |
| 611 | remove_hup_source(s); |
| 612 | s->hup_source = qio_channel_create_watch(s->ioc, G_IO_HUP); |
Daniel P. Berrangé | 8bd8b04 | 2024-03-18 18:06:59 +0000 | [diff] [blame] | 613 | /* |
| 614 | * poll() is liable to return POLLHUP even when there is |
| 615 | * still incoming data available to read on the FD. If |
| 616 | * we have the hup_source at the same priority as the |
| 617 | * main io_add_watch_poll GSource, then we might end up |
| 618 | * processing the POLLHUP event first, closing the FD, |
| 619 | * and as a result silently discard data we should have |
| 620 | * read. |
| 621 | * |
| 622 | * By setting the hup_source to G_PRIORITY_DEFAULT + 1, |
| 623 | * we ensure that io_add_watch_poll GSource will always |
| 624 | * be dispatched first, thus guaranteeing we will be |
| 625 | * able to process all incoming data before closing the |
| 626 | * FD |
| 627 | */ |
| 628 | g_source_set_priority(s->hup_source, G_PRIORITY_DEFAULT + 1); |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 629 | g_source_set_callback(s->hup_source, (GSourceFunc)tcp_chr_hup, |
| 630 | chr, NULL); |
| 631 | g_source_attach(s->hup_source, chr->gcontext); |
| 632 | } |
| 633 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 634 | static void tcp_chr_connect(void *opaque) |
| 635 | { |
| 636 | Chardev *chr = CHARDEV(opaque); |
| 637 | SocketChardev *s = SOCKET_CHARDEV(opaque); |
| 638 | |
| 639 | g_free(chr->filename); |
Julia Suvorova | 4493b6a | 2018-10-19 01:34:59 +0300 | [diff] [blame] | 640 | chr->filename = qemu_chr_compute_filename(s); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 641 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 642 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTED); |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 643 | update_ioc_handlers(s); |
Marc-André Lureau | 6361813 | 2016-12-14 14:23:02 +0300 | [diff] [blame] | 644 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 645 | } |
| 646 | |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 647 | static void tcp_chr_telnet_destroy(SocketChardev *s) |
| 648 | { |
| 649 | if (s->telnet_source) { |
| 650 | g_source_destroy(s->telnet_source); |
| 651 | g_source_unref(s->telnet_source); |
| 652 | s->telnet_source = NULL; |
| 653 | } |
| 654 | } |
| 655 | |
Peter Xu | bb86d05 | 2017-09-21 14:35:54 +0800 | [diff] [blame] | 656 | static void tcp_chr_update_read_handler(Chardev *chr) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 657 | { |
| 658 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 659 | |
Paolo Bonzini | 5b774fe | 2019-02-20 15:33:27 +0100 | [diff] [blame] | 660 | if (s->listener && s->state == TCP_CHARDEV_STATE_DISCONNECTED) { |
Peter Xu | 3da9de5 | 2018-03-06 13:33:14 +0800 | [diff] [blame] | 661 | /* |
| 662 | * It's possible that chardev context is changed in |
| 663 | * qemu_chr_be_update_read_handlers(). Reset it for QIO net |
| 664 | * listener if there is. |
| 665 | */ |
| 666 | qio_net_listener_set_client_func_full(s->listener, tcp_chr_accept, |
| 667 | chr, NULL, chr->gcontext); |
| 668 | } |
| 669 | |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 670 | if (s->telnet_source) { |
| 671 | tcp_chr_telnet_init(CHARDEV(s)); |
| 672 | } |
| 673 | |
Marc-André Lureau | dfe9ea2 | 2018-08-17 15:52:23 +0200 | [diff] [blame] | 674 | update_ioc_handlers(s); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 675 | } |
| 676 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 677 | static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc, |
| 678 | GIOCondition cond G_GNUC_UNUSED, |
| 679 | gpointer user_data) |
| 680 | { |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 681 | SocketChardev *s = user_data; |
| 682 | Chardev *chr = CHARDEV(s); |
| 683 | TCPChardevTelnetInit *init = s->telnet_init; |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 684 | Error *err = NULL; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 685 | ssize_t ret; |
| 686 | |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 687 | assert(init); |
| 688 | |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 689 | ret = qio_channel_write(ioc, init->buf, init->buflen, &err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 690 | if (ret < 0) { |
| 691 | if (ret == QIO_CHANNEL_ERR_BLOCK) { |
| 692 | ret = 0; |
| 693 | } else { |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 694 | trace_chr_socket_write_err(chr, chr->label, error_get_pretty(err)); |
| 695 | error_free(err); |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 696 | tcp_chr_disconnect(chr); |
Peter Xu | 8b2ec54 | 2018-03-01 16:44:24 +0800 | [diff] [blame] | 697 | goto end; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 698 | } |
| 699 | } |
| 700 | init->buflen -= ret; |
| 701 | |
| 702 | if (init->buflen == 0) { |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 703 | tcp_chr_connect(chr); |
Peter Xu | 8b2ec54 | 2018-03-01 16:44:24 +0800 | [diff] [blame] | 704 | goto end; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 705 | } |
| 706 | |
| 707 | memmove(init->buf, init->buf + ret, init->buflen); |
| 708 | |
Peter Xu | 8b2ec54 | 2018-03-01 16:44:24 +0800 | [diff] [blame] | 709 | return G_SOURCE_CONTINUE; |
| 710 | |
| 711 | end: |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 712 | g_free(s->telnet_init); |
| 713 | s->telnet_init = NULL; |
| 714 | g_source_unref(s->telnet_source); |
| 715 | s->telnet_source = NULL; |
Peter Xu | 8b2ec54 | 2018-03-01 16:44:24 +0800 | [diff] [blame] | 716 | return G_SOURCE_REMOVE; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 717 | } |
| 718 | |
| 719 | static void tcp_chr_telnet_init(Chardev *chr) |
| 720 | { |
| 721 | SocketChardev *s = SOCKET_CHARDEV(chr); |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 722 | TCPChardevTelnetInit *init; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 723 | size_t n = 0; |
| 724 | |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 725 | /* Destroy existing task */ |
| 726 | tcp_chr_telnet_destroy(s); |
| 727 | |
| 728 | if (s->telnet_init) { |
| 729 | /* We are possibly during a handshake already */ |
| 730 | goto cont; |
| 731 | } |
| 732 | |
| 733 | s->telnet_init = g_new0(TCPChardevTelnetInit, 1); |
| 734 | init = s->telnet_init; |
| 735 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 736 | #define IACSET(x, a, b, c) \ |
| 737 | do { \ |
| 738 | x[n++] = a; \ |
| 739 | x[n++] = b; \ |
| 740 | x[n++] = c; \ |
| 741 | } while (0) |
| 742 | |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 743 | if (!s->is_tn3270) { |
| 744 | init->buflen = 12; |
Michael Tokarev | 0a19d87 | 2023-07-14 14:33:49 +0300 | [diff] [blame] | 745 | /* Prep the telnet negotiation to put telnet in binary, |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 746 | * no echo, single char mode */ |
| 747 | IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 748 | IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 749 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 750 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 751 | } else { |
| 752 | init->buflen = 21; |
Michael Tokarev | 0a19d87 | 2023-07-14 14:33:49 +0300 | [diff] [blame] | 753 | /* Prep the TN3270 negotiation based on RFC1576 */ |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 754 | IACSET(init->buf, 0xff, 0xfd, 0x19); /* IAC DO EOR */ |
| 755 | IACSET(init->buf, 0xff, 0xfb, 0x19); /* IAC WILL EOR */ |
| 756 | IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO BINARY */ |
| 757 | IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL BINARY */ |
| 758 | IACSET(init->buf, 0xff, 0xfd, 0x18); /* IAC DO TERMINAL TYPE */ |
| 759 | IACSET(init->buf, 0xff, 0xfa, 0x18); /* IAC SB TERMINAL TYPE */ |
| 760 | IACSET(init->buf, 0x01, 0xff, 0xf0); /* SEND IAC SE */ |
| 761 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 762 | |
| 763 | #undef IACSET |
| 764 | |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 765 | cont: |
| 766 | s->telnet_source = qio_channel_add_watch_source(s->ioc, G_IO_OUT, |
| 767 | tcp_chr_telnet_init_io, |
| 768 | s, NULL, |
| 769 | chr->gcontext); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 770 | } |
| 771 | |
| 772 | |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 773 | static void tcp_chr_websock_handshake(QIOTask *task, gpointer user_data) |
| 774 | { |
| 775 | Chardev *chr = user_data; |
| 776 | SocketChardev *s = user_data; |
Marc-André Lureau | 81cd34a | 2023-05-10 11:25:31 +0400 | [diff] [blame] | 777 | Error *err = NULL; |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 778 | |
Marc-André Lureau | 81cd34a | 2023-05-10 11:25:31 +0400 | [diff] [blame] | 779 | if (qio_task_propagate_error(task, &err)) { |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 780 | trace_chr_socket_ws_handshake_err(chr, chr->label, |
| 781 | error_get_pretty(err)); |
| 782 | error_free(err); |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 783 | tcp_chr_disconnect(chr); |
| 784 | } else { |
| 785 | if (s->do_telnetopt) { |
| 786 | tcp_chr_telnet_init(chr); |
| 787 | } else { |
| 788 | tcp_chr_connect(chr); |
| 789 | } |
| 790 | } |
| 791 | } |
| 792 | |
| 793 | |
| 794 | static void tcp_chr_websock_init(Chardev *chr) |
| 795 | { |
| 796 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 797 | QIOChannelWebsock *wioc = NULL; |
| 798 | gchar *name; |
| 799 | |
| 800 | wioc = qio_channel_websock_new_server(s->ioc); |
| 801 | |
| 802 | name = g_strdup_printf("chardev-websocket-server-%s", chr->label); |
| 803 | qio_channel_set_name(QIO_CHANNEL(wioc), name); |
| 804 | g_free(name); |
| 805 | object_unref(OBJECT(s->ioc)); |
| 806 | s->ioc = QIO_CHANNEL(wioc); |
| 807 | |
| 808 | qio_channel_websock_handshake(wioc, tcp_chr_websock_handshake, chr, NULL); |
| 809 | } |
| 810 | |
| 811 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 812 | static void tcp_chr_tls_handshake(QIOTask *task, |
| 813 | gpointer user_data) |
| 814 | { |
| 815 | Chardev *chr = user_data; |
| 816 | SocketChardev *s = user_data; |
Marc-André Lureau | 81cd34a | 2023-05-10 11:25:31 +0400 | [diff] [blame] | 817 | Error *err = NULL; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 818 | |
Marc-André Lureau | 81cd34a | 2023-05-10 11:25:31 +0400 | [diff] [blame] | 819 | if (qio_task_propagate_error(task, &err)) { |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 820 | trace_chr_socket_tls_handshake_err(chr, chr->label, |
| 821 | error_get_pretty(err)); |
| 822 | error_free(err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 823 | tcp_chr_disconnect(chr); |
| 824 | } else { |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 825 | if (s->is_websock) { |
| 826 | tcp_chr_websock_init(chr); |
| 827 | } else if (s->do_telnetopt) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 828 | tcp_chr_telnet_init(chr); |
| 829 | } else { |
| 830 | tcp_chr_connect(chr); |
| 831 | } |
| 832 | } |
| 833 | } |
| 834 | |
| 835 | |
| 836 | static void tcp_chr_tls_init(Chardev *chr) |
| 837 | { |
| 838 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 839 | QIOChannelTLS *tioc; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 840 | gchar *name; |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 841 | Error *err = NULL; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 842 | |
| 843 | if (s->is_listen) { |
| 844 | tioc = qio_channel_tls_new_server( |
| 845 | s->ioc, s->tls_creds, |
Daniel P. Berrange | fd4a5fd | 2019-03-08 15:21:50 +0000 | [diff] [blame] | 846 | s->tls_authz, |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 847 | &err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 848 | } else { |
| 849 | tioc = qio_channel_tls_new_client( |
| 850 | s->ioc, s->tls_creds, |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 851 | s->addr->u.inet.host, |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 852 | &err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 853 | } |
| 854 | if (tioc == NULL) { |
Daniel P. Berrangé | 6ffade7 | 2024-03-15 13:04:44 +0000 | [diff] [blame] | 855 | trace_chr_socket_tls_init_err(chr, chr->label, error_get_pretty(err)); |
| 856 | error_free(err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 857 | tcp_chr_disconnect(chr); |
| 858 | return; |
| 859 | } |
| 860 | name = g_strdup_printf("chardev-tls-%s-%s", |
| 861 | s->is_listen ? "server" : "client", |
| 862 | chr->label); |
| 863 | qio_channel_set_name(QIO_CHANNEL(tioc), name); |
| 864 | g_free(name); |
| 865 | object_unref(OBJECT(s->ioc)); |
| 866 | s->ioc = QIO_CHANNEL(tioc); |
| 867 | |
| 868 | qio_channel_tls_handshake(tioc, |
| 869 | tcp_chr_tls_handshake, |
| 870 | chr, |
Peter Xu | 1939ccd | 2018-03-05 14:43:24 +0800 | [diff] [blame] | 871 | NULL, |
Peter Xu | 05b6cc4 | 2018-03-06 13:33:19 +0800 | [diff] [blame] | 872 | chr->gcontext); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 873 | } |
| 874 | |
| 875 | |
| 876 | static void tcp_chr_set_client_ioc_name(Chardev *chr, |
| 877 | QIOChannelSocket *sioc) |
| 878 | { |
| 879 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 880 | char *name; |
| 881 | name = g_strdup_printf("chardev-tcp-%s-%s", |
| 882 | s->is_listen ? "server" : "client", |
| 883 | chr->label); |
| 884 | qio_channel_set_name(QIO_CHANNEL(sioc), name); |
| 885 | g_free(name); |
| 886 | |
| 887 | } |
| 888 | |
| 889 | static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc) |
| 890 | { |
| 891 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 892 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 893 | if (s->state != TCP_CHARDEV_STATE_CONNECTING) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 894 | return -1; |
| 895 | } |
| 896 | |
| 897 | s->ioc = QIO_CHANNEL(sioc); |
| 898 | object_ref(OBJECT(sioc)); |
| 899 | s->sioc = sioc; |
| 900 | object_ref(OBJECT(sioc)); |
| 901 | |
| 902 | qio_channel_set_blocking(s->ioc, false, NULL); |
| 903 | |
| 904 | if (s->do_nodelay) { |
| 905 | qio_channel_set_delay(s->ioc, false); |
| 906 | } |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 907 | if (s->listener) { |
Peter Xu | 3da9de5 | 2018-03-06 13:33:14 +0800 | [diff] [blame] | 908 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
| 909 | NULL, chr->gcontext); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 910 | } |
| 911 | |
| 912 | if (s->tls_creds) { |
| 913 | tcp_chr_tls_init(chr); |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 914 | } else if (s->is_websock) { |
| 915 | tcp_chr_websock_init(chr); |
| 916 | } else if (s->do_telnetopt) { |
| 917 | tcp_chr_telnet_init(chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 918 | } else { |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 919 | tcp_chr_connect(chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | return 0; |
| 923 | } |
| 924 | |
| 925 | |
| 926 | static int tcp_chr_add_client(Chardev *chr, int fd) |
| 927 | { |
| 928 | int ret; |
| 929 | QIOChannelSocket *sioc; |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 930 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 931 | |
| 932 | if (s->state != TCP_CHARDEV_STATE_DISCONNECTED) { |
| 933 | return -1; |
| 934 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 935 | |
| 936 | sioc = qio_channel_socket_new_fd(fd, NULL); |
| 937 | if (!sioc) { |
| 938 | return -1; |
| 939 | } |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 940 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 941 | tcp_chr_set_client_ioc_name(chr, sioc); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 942 | if (s->registered_yank) { |
| 943 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 944 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 945 | QIO_CHANNEL(sioc)); |
| 946 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 947 | ret = tcp_chr_new_client(chr, sioc); |
| 948 | object_unref(OBJECT(sioc)); |
| 949 | return ret; |
| 950 | } |
| 951 | |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 952 | static void tcp_chr_accept(QIONetListener *listener, |
| 953 | QIOChannelSocket *cioc, |
| 954 | void *opaque) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 955 | { |
| 956 | Chardev *chr = CHARDEV(opaque); |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 957 | SocketChardev *s = SOCKET_CHARDEV(chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 958 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 959 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 960 | tcp_chr_set_client_ioc_name(chr, cioc); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 961 | if (s->registered_yank) { |
| 962 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 963 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 964 | QIO_CHANNEL(cioc)); |
| 965 | } |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 966 | tcp_chr_new_client(chr, cioc); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 967 | } |
| 968 | |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 969 | |
| 970 | static int tcp_chr_connect_client_sync(Chardev *chr, Error **errp) |
| 971 | { |
| 972 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 973 | QIOChannelSocket *sioc = qio_channel_socket_new(); |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 974 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 975 | tcp_chr_set_client_ioc_name(chr, sioc); |
| 976 | if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) { |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 977 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 978 | object_unref(OBJECT(sioc)); |
| 979 | return -1; |
| 980 | } |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 981 | if (s->registered_yank) { |
| 982 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 983 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 984 | QIO_CHANNEL(sioc)); |
| 985 | } |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 986 | tcp_chr_new_client(chr, sioc); |
| 987 | object_unref(OBJECT(sioc)); |
| 988 | return 0; |
| 989 | } |
| 990 | |
| 991 | |
| 992 | static void tcp_chr_accept_server_sync(Chardev *chr) |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 993 | { |
| 994 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 995 | QIOChannelSocket *sioc; |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 996 | info_report("QEMU waiting for connection on: %s", |
| 997 | chr->filename); |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 998 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 999 | sioc = qio_net_listener_wait_client(s->listener); |
| 1000 | tcp_chr_set_client_ioc_name(chr, sioc); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1001 | if (s->registered_yank) { |
| 1002 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 1003 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1004 | QIO_CHANNEL(sioc)); |
| 1005 | } |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 1006 | tcp_chr_new_client(chr, sioc); |
| 1007 | object_unref(OBJECT(sioc)); |
| 1008 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1009 | |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 1010 | |
| 1011 | static int tcp_chr_wait_connected(Chardev *chr, Error **errp) |
| 1012 | { |
| 1013 | SocketChardev *s = SOCKET_CHARDEV(chr); |
Daniel P. Berrangé | d1885e5 | 2019-02-11 18:24:39 +0000 | [diff] [blame] | 1014 | const char *opts[] = { "telnet", "tn3270", "websock", "tls-creds" }; |
| 1015 | bool optset[] = { s->is_telnet, s->is_tn3270, s->is_websock, s->tls_creds }; |
| 1016 | size_t i; |
| 1017 | |
| 1018 | QEMU_BUILD_BUG_ON(G_N_ELEMENTS(opts) != G_N_ELEMENTS(optset)); |
| 1019 | for (i = 0; i < G_N_ELEMENTS(opts); i++) { |
| 1020 | if (optset[i]) { |
| 1021 | error_setg(errp, |
| 1022 | "'%s' option is incompatible with waiting for " |
| 1023 | "connection completion", opts[i]); |
| 1024 | return -1; |
| 1025 | } |
| 1026 | } |
| 1027 | |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 1028 | tcp_chr_reconn_timer_cancel(s); |
| 1029 | |
| 1030 | /* |
| 1031 | * We expect states to be as follows: |
| 1032 | * |
| 1033 | * - server |
| 1034 | * - wait -> CONNECTED |
| 1035 | * - nowait -> DISCONNECTED |
| 1036 | * - client |
| 1037 | * - reconnect == 0 -> CONNECTED |
| 1038 | * - reconnect != 0 -> CONNECTING |
| 1039 | * |
| 1040 | */ |
| 1041 | if (s->state == TCP_CHARDEV_STATE_CONNECTING) { |
| 1042 | if (!s->connect_task) { |
| 1043 | error_setg(errp, |
| 1044 | "Unexpected 'connecting' state without connect task " |
| 1045 | "while waiting for connection completion"); |
| 1046 | return -1; |
| 1047 | } |
| 1048 | /* |
| 1049 | * tcp_chr_wait_connected should only ever be run from the |
| 1050 | * main loop thread associated with chr->gcontext, otherwise |
| 1051 | * qio_task_wait_thread has a dangerous race condition with |
| 1052 | * free'ing of the s->connect_task object. |
| 1053 | * |
| 1054 | * Acquiring the main context doesn't 100% prove we're in |
| 1055 | * the main loop thread, but it does at least guarantee |
| 1056 | * that the main loop won't be executed by another thread |
| 1057 | * avoiding the race condition with the task idle callback. |
| 1058 | */ |
| 1059 | g_main_context_acquire(chr->gcontext); |
| 1060 | qio_task_wait_thread(s->connect_task); |
| 1061 | g_main_context_release(chr->gcontext); |
| 1062 | |
| 1063 | /* |
| 1064 | * The completion callback (qemu_chr_socket_connected) for |
| 1065 | * s->connect_task should have set this to NULL by the time |
| 1066 | * qio_task_wait_thread has returned. |
| 1067 | */ |
| 1068 | assert(!s->connect_task); |
| 1069 | |
| 1070 | /* |
| 1071 | * NB we are *not* guaranteed to have "s->state == ..CONNECTED" |
| 1072 | * at this point as this first connect may be failed, so |
| 1073 | * allow the next loop to run regardless. |
| 1074 | */ |
| 1075 | } |
| 1076 | |
| 1077 | while (s->state != TCP_CHARDEV_STATE_CONNECTED) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1078 | if (s->is_listen) { |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 1079 | tcp_chr_accept_server_sync(chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1080 | } else { |
Daniel P. Berrangé | 25d93b6 | 2019-02-11 18:24:38 +0000 | [diff] [blame] | 1081 | Error *err = NULL; |
| 1082 | if (tcp_chr_connect_client_sync(chr, &err) < 0) { |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1083 | if (s->reconnect_time_ms) { |
Daniel P. Berrangé | 25d93b6 | 2019-02-11 18:24:38 +0000 | [diff] [blame] | 1084 | error_free(err); |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1085 | g_usleep(s->reconnect_time_ms * 1000ULL); |
Daniel P. Berrangé | 25d93b6 | 2019-02-11 18:24:38 +0000 | [diff] [blame] | 1086 | } else { |
| 1087 | error_propagate(errp, err); |
| 1088 | return -1; |
| 1089 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1090 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1091 | } |
| 1092 | } |
| 1093 | |
| 1094 | return 0; |
| 1095 | } |
| 1096 | |
| 1097 | static void char_socket_finalize(Object *obj) |
| 1098 | { |
| 1099 | Chardev *chr = CHARDEV(obj); |
| 1100 | SocketChardev *s = SOCKET_CHARDEV(obj); |
| 1101 | |
| 1102 | tcp_chr_free_connection(chr); |
Peter Xu | 2c716ba | 2018-01-04 22:18:35 +0800 | [diff] [blame] | 1103 | tcp_chr_reconn_timer_cancel(s); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1104 | qapi_free_SocketAddress(s->addr); |
Peter Xu | ce1230c | 2018-03-06 13:33:15 +0800 | [diff] [blame] | 1105 | tcp_chr_telnet_destroy(s); |
| 1106 | g_free(s->telnet_init); |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 1107 | if (s->listener) { |
Peter Xu | 3da9de5 | 2018-03-06 13:33:14 +0800 | [diff] [blame] | 1108 | qio_net_listener_set_client_func_full(s->listener, NULL, NULL, |
| 1109 | NULL, chr->gcontext); |
Daniel P. Berrange | 194b7f0 | 2017-12-18 13:54:17 +0000 | [diff] [blame] | 1110 | object_unref(OBJECT(s->listener)); |
Yajun Wu | b8a7f51 | 2023-02-14 10:14:30 +0800 | [diff] [blame] | 1111 | s->listener = NULL; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1112 | } |
| 1113 | if (s->tls_creds) { |
| 1114 | object_unref(OBJECT(s->tls_creds)); |
| 1115 | } |
Daniel P. Berrange | fd4a5fd | 2019-03-08 15:21:50 +0000 | [diff] [blame] | 1116 | g_free(s->tls_authz); |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 1117 | if (s->registered_yank) { |
Lukas Straub | feb774c | 2021-03-30 20:13:31 +0200 | [diff] [blame] | 1118 | /* |
| 1119 | * In the chardev-change special-case, we shouldn't unregister the yank |
| 1120 | * instance, as it still may be needed. |
| 1121 | */ |
| 1122 | if (!chr->handover_yank_instance) { |
| 1123 | yank_unregister_instance(CHARDEV_YANK_INSTANCE(chr->label)); |
| 1124 | } |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 1125 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1126 | |
| 1127 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 1128 | } |
| 1129 | |
| 1130 | static void qemu_chr_socket_connected(QIOTask *task, void *opaque) |
| 1131 | { |
| 1132 | QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); |
| 1133 | Chardev *chr = CHARDEV(opaque); |
| 1134 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 1135 | Error *err = NULL; |
| 1136 | |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 1137 | s->connect_task = NULL; |
| 1138 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1139 | if (qio_task_propagate_error(task, &err)) { |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 1140 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1141 | if (s->registered_yank) { |
| 1142 | yank_unregister_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 1143 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1144 | QIO_CHANNEL(sioc)); |
| 1145 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1146 | check_report_connect_error(chr, err); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1147 | goto cleanup; |
| 1148 | } |
| 1149 | |
| 1150 | s->connect_err_reported = false; |
| 1151 | tcp_chr_new_client(chr, sioc); |
| 1152 | |
| 1153 | cleanup: |
| 1154 | object_unref(OBJECT(sioc)); |
| 1155 | } |
| 1156 | |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 1157 | |
| 1158 | static void tcp_chr_connect_client_task(QIOTask *task, |
| 1159 | gpointer opaque) |
| 1160 | { |
| 1161 | QIOChannelSocket *ioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task)); |
| 1162 | SocketAddress *addr = opaque; |
| 1163 | Error *err = NULL; |
| 1164 | |
| 1165 | qio_channel_socket_connect_sync(ioc, addr, &err); |
| 1166 | |
| 1167 | qio_task_set_error(task, err); |
| 1168 | } |
| 1169 | |
| 1170 | |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 1171 | static void tcp_chr_connect_client_async(Chardev *chr) |
Peter Xu | 3e7d4d2 | 2018-03-06 13:33:17 +0800 | [diff] [blame] | 1172 | { |
| 1173 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 1174 | QIOChannelSocket *sioc; |
| 1175 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 1176 | tcp_chr_change_state(s, TCP_CHARDEV_STATE_CONNECTING); |
Peter Xu | 3e7d4d2 | 2018-03-06 13:33:17 +0800 | [diff] [blame] | 1177 | sioc = qio_channel_socket_new(); |
| 1178 | tcp_chr_set_client_ioc_name(chr, sioc); |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1179 | if (s->registered_yank) { |
| 1180 | yank_register_function(CHARDEV_YANK_INSTANCE(chr->label), |
Lukas Straub | 1a92d6d | 2021-03-23 18:52:42 +0100 | [diff] [blame] | 1181 | char_socket_yank_iochannel, |
Marc-André Lureau | ebae647 | 2021-02-04 14:52:31 +0400 | [diff] [blame] | 1182 | QIO_CHANNEL(sioc)); |
| 1183 | } |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 1184 | /* |
| 1185 | * Normally code would use the qio_channel_socket_connect_async |
| 1186 | * method which uses a QIOTask + qio_task_set_error internally |
| 1187 | * to avoid blocking. The tcp_chr_wait_connected method, however, |
| 1188 | * needs a way to synchronize with completion of the background |
| 1189 | * connect task which can't be done with the QIOChannelSocket |
| 1190 | * async APIs. Thus we must use QIOTask directly to implement |
| 1191 | * the non-blocking concept locally. |
| 1192 | */ |
| 1193 | s->connect_task = qio_task_new(OBJECT(sioc), |
| 1194 | qemu_chr_socket_connected, |
Marc-André Lureau | 6806601 | 2020-04-20 13:20:12 +0200 | [diff] [blame] | 1195 | object_ref(OBJECT(chr)), |
| 1196 | (GDestroyNotify)object_unref); |
Daniel P. Berrangé | 4b47373 | 2019-02-11 18:24:40 +0000 | [diff] [blame] | 1197 | qio_task_run_in_thread(s->connect_task, |
| 1198 | tcp_chr_connect_client_task, |
| 1199 | s->addr, |
| 1200 | NULL, |
| 1201 | chr->gcontext); |
Peter Xu | 3e7d4d2 | 2018-03-06 13:33:17 +0800 | [diff] [blame] | 1202 | } |
| 1203 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1204 | static gboolean socket_reconnect_timeout(gpointer opaque) |
| 1205 | { |
| 1206 | Chardev *chr = CHARDEV(opaque); |
| 1207 | SocketChardev *s = SOCKET_CHARDEV(opaque); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1208 | |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 1209 | qemu_mutex_lock(&chr->chr_write_lock); |
Peter Xu | 2c716ba | 2018-01-04 22:18:35 +0800 | [diff] [blame] | 1210 | g_source_unref(s->reconnect_timer); |
| 1211 | s->reconnect_timer = NULL; |
Alberto Garcia | 78d0159 | 2019-08-12 18:58:29 +0300 | [diff] [blame] | 1212 | qemu_mutex_unlock(&chr->chr_write_lock); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1213 | |
| 1214 | if (chr->be_open) { |
| 1215 | return false; |
| 1216 | } |
| 1217 | |
Daniel P. Berrangé | efae0b9 | 2019-02-11 18:24:35 +0000 | [diff] [blame] | 1218 | tcp_chr_connect_client_async(chr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1219 | |
| 1220 | return false; |
| 1221 | } |
| 1222 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1223 | |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1224 | static int qmp_chardev_open_socket_server(Chardev *chr, |
| 1225 | bool is_telnet, |
| 1226 | bool is_waitconnect, |
| 1227 | Error **errp) |
| 1228 | { |
| 1229 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 1230 | char *name; |
| 1231 | if (is_telnet) { |
| 1232 | s->do_telnetopt = 1; |
| 1233 | } |
| 1234 | s->listener = qio_net_listener_new(); |
| 1235 | |
| 1236 | name = g_strdup_printf("chardev-tcp-listener-%s", chr->label); |
| 1237 | qio_net_listener_set_name(s->listener, name); |
| 1238 | g_free(name); |
| 1239 | |
Marc-André Lureau | 1b87751 | 2021-07-25 23:59:12 +0400 | [diff] [blame] | 1240 | if (s->addr->type == SOCKET_ADDRESS_TYPE_FD && !*s->addr->u.fd.str) { |
| 1241 | goto skip_listen; |
| 1242 | } |
| 1243 | |
Juan Quintela | fc8135c | 2019-08-19 18:08:21 +0200 | [diff] [blame] | 1244 | if (qio_net_listener_open_sync(s->listener, s->addr, 1, errp) < 0) { |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1245 | object_unref(OBJECT(s->listener)); |
| 1246 | s->listener = NULL; |
| 1247 | return -1; |
| 1248 | } |
| 1249 | |
| 1250 | qapi_free_SocketAddress(s->addr); |
| 1251 | s->addr = socket_local_address(s->listener->sioc[0]->fd, errp); |
Marc-André Lureau | 1b87751 | 2021-07-25 23:59:12 +0400 | [diff] [blame] | 1252 | |
| 1253 | skip_listen: |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1254 | update_disconnected_filename(s); |
| 1255 | |
| 1256 | if (is_waitconnect) { |
| 1257 | tcp_chr_accept_server_sync(chr); |
| 1258 | } else { |
| 1259 | qio_net_listener_set_client_func_full(s->listener, |
| 1260 | tcp_chr_accept, |
| 1261 | chr, NULL, |
| 1262 | chr->gcontext); |
| 1263 | } |
| 1264 | |
| 1265 | return 0; |
| 1266 | } |
| 1267 | |
| 1268 | |
| 1269 | static int qmp_chardev_open_socket_client(Chardev *chr, |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1270 | int64_t reconnect_ms, |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1271 | Error **errp) |
| 1272 | { |
| 1273 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 1274 | |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1275 | if (reconnect_ms > 0) { |
| 1276 | s->reconnect_time_ms = reconnect_ms; |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1277 | tcp_chr_connect_client_async(chr); |
| 1278 | return 0; |
| 1279 | } else { |
| 1280 | return tcp_chr_connect_client_sync(chr, errp); |
| 1281 | } |
| 1282 | } |
| 1283 | |
| 1284 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1285 | static bool qmp_chardev_validate_socket(ChardevSocket *sock, |
| 1286 | SocketAddress *addr, |
| 1287 | Error **errp) |
| 1288 | { |
| 1289 | /* Validate any options which have a dependency on address type */ |
| 1290 | switch (addr->type) { |
| 1291 | case SOCKET_ADDRESS_TYPE_FD: |
| 1292 | if (sock->has_reconnect) { |
| 1293 | error_setg(errp, |
| 1294 | "'reconnect' option is incompatible with " |
| 1295 | "'fd' address type"); |
| 1296 | return false; |
| 1297 | } |
Markus Armbruster | 8de69ef | 2022-11-04 17:06:53 +0100 | [diff] [blame] | 1298 | if (sock->tls_creds && |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1299 | !(sock->has_server && sock->server)) { |
| 1300 | error_setg(errp, |
| 1301 | "'tls_creds' option is incompatible with " |
| 1302 | "'fd' address type as client"); |
| 1303 | return false; |
| 1304 | } |
| 1305 | break; |
| 1306 | |
| 1307 | case SOCKET_ADDRESS_TYPE_UNIX: |
Markus Armbruster | 8de69ef | 2022-11-04 17:06:53 +0100 | [diff] [blame] | 1308 | if (sock->tls_creds) { |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1309 | error_setg(errp, |
| 1310 | "'tls_creds' option is incompatible with " |
| 1311 | "'unix' address type"); |
| 1312 | return false; |
| 1313 | } |
| 1314 | break; |
| 1315 | |
| 1316 | case SOCKET_ADDRESS_TYPE_INET: |
| 1317 | break; |
| 1318 | |
| 1319 | case SOCKET_ADDRESS_TYPE_VSOCK: |
Markus Armbruster | 8de69ef | 2022-11-04 17:06:53 +0100 | [diff] [blame] | 1320 | if (sock->tls_creds) { |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1321 | error_setg(errp, |
| 1322 | "'tls_creds' option is incompatible with " |
| 1323 | "'vsock' address type"); |
| 1324 | return false; |
| 1325 | } |
| 1326 | |
| 1327 | default: |
| 1328 | break; |
| 1329 | } |
| 1330 | |
Markus Armbruster | 8de69ef | 2022-11-04 17:06:53 +0100 | [diff] [blame] | 1331 | if (sock->tls_authz && !sock->tls_creds) { |
Daniel P. Berrange | fd4a5fd | 2019-03-08 15:21:50 +0000 | [diff] [blame] | 1332 | error_setg(errp, "'tls_authz' option requires 'tls_creds' option"); |
| 1333 | return false; |
| 1334 | } |
| 1335 | |
Michael Tokarev | 0a19d87 | 2023-07-14 14:33:49 +0300 | [diff] [blame] | 1336 | /* Validate any options which have a dependency on client vs server */ |
Daniel P. Berrangé | 4a0582f | 2019-02-11 18:24:30 +0000 | [diff] [blame] | 1337 | if (!sock->has_server || sock->server) { |
| 1338 | if (sock->has_reconnect) { |
| 1339 | error_setg(errp, |
| 1340 | "'reconnect' option is incompatible with " |
| 1341 | "socket in server listen mode"); |
| 1342 | return false; |
| 1343 | } |
| 1344 | } else { |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1345 | if (sock->has_websocket && sock->websocket) { |
| 1346 | error_setg(errp, "%s", "Websocket client is not implemented"); |
| 1347 | return false; |
| 1348 | } |
Daniel P. Berrangé | 767abe7 | 2019-02-11 18:24:31 +0000 | [diff] [blame] | 1349 | if (sock->has_wait) { |
Daniel P. Berrangé | 24e13a4 | 2021-02-22 13:47:17 +0000 | [diff] [blame] | 1350 | error_setg(errp, "%s", |
| 1351 | "'wait' option is incompatible with " |
| 1352 | "socket in client connect mode"); |
| 1353 | return false; |
Daniel P. Berrangé | 767abe7 | 2019-02-11 18:24:31 +0000 | [diff] [blame] | 1354 | } |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1355 | } |
| 1356 | |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1357 | if (sock->has_reconnect_ms && sock->has_reconnect) { |
| 1358 | error_setg(errp, |
| 1359 | "'reconnect' and 'reconnect-ms' are mutually exclusive"); |
| 1360 | return false; |
| 1361 | } |
| 1362 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1363 | return true; |
| 1364 | } |
| 1365 | |
| 1366 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1367 | static void qmp_chardev_open_socket(Chardev *chr, |
| 1368 | ChardevBackend *backend, |
| 1369 | bool *be_opened, |
| 1370 | Error **errp) |
| 1371 | { |
| 1372 | SocketChardev *s = SOCKET_CHARDEV(chr); |
| 1373 | ChardevSocket *sock = backend->u.socket.data; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1374 | bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
| 1375 | bool is_listen = sock->has_server ? sock->server : true; |
| 1376 | bool is_telnet = sock->has_telnet ? sock->telnet : false; |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 1377 | bool is_tn3270 = sock->has_tn3270 ? sock->tn3270 : false; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1378 | bool is_waitconnect = sock->has_wait ? sock->wait : false; |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 1379 | bool is_websock = sock->has_websocket ? sock->websocket : false; |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1380 | int64_t reconnect_ms = 0; |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 1381 | SocketAddress *addr; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1382 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1383 | s->is_listen = is_listen; |
| 1384 | s->is_telnet = is_telnet; |
Jing Liu | ae92cbd | 2016-09-23 08:06:11 +0200 | [diff] [blame] | 1385 | s->is_tn3270 = is_tn3270; |
Julia Suvorova | 981b06e | 2018-10-19 01:35:00 +0300 | [diff] [blame] | 1386 | s->is_websock = is_websock; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1387 | s->do_nodelay = do_nodelay; |
| 1388 | if (sock->tls_creds) { |
| 1389 | Object *creds; |
| 1390 | creds = object_resolve_path_component( |
| 1391 | object_get_objects_root(), sock->tls_creds); |
| 1392 | if (!creds) { |
| 1393 | error_setg(errp, "No TLS credentials with id '%s'", |
| 1394 | sock->tls_creds); |
Daniel P. Berrangé | e154fd7 | 2019-02-11 18:24:34 +0000 | [diff] [blame] | 1395 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1396 | } |
| 1397 | s->tls_creds = (QCryptoTLSCreds *) |
| 1398 | object_dynamic_cast(creds, |
| 1399 | TYPE_QCRYPTO_TLS_CREDS); |
| 1400 | if (!s->tls_creds) { |
| 1401 | error_setg(errp, "Object with id '%s' is not TLS credentials", |
| 1402 | sock->tls_creds); |
Daniel P. Berrangé | e154fd7 | 2019-02-11 18:24:34 +0000 | [diff] [blame] | 1403 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1404 | } |
| 1405 | object_ref(OBJECT(s->tls_creds)); |
Philippe Mathieu-Daudé | 8612df2 | 2021-06-28 18:09:11 +0200 | [diff] [blame] | 1406 | if (!qcrypto_tls_creds_check_endpoint(s->tls_creds, |
| 1407 | is_listen |
| 1408 | ? QCRYPTO_TLS_CREDS_ENDPOINT_SERVER |
| 1409 | : QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT, |
| 1410 | errp)) { |
| 1411 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1412 | } |
| 1413 | } |
Daniel P. Berrange | fd4a5fd | 2019-03-08 15:21:50 +0000 | [diff] [blame] | 1414 | s->tls_authz = g_strdup(sock->tls_authz); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1415 | |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 1416 | s->addr = addr = socket_address_flatten(sock->addr); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1417 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1418 | if (!qmp_chardev_validate_socket(sock, addr, errp)) { |
Daniel P. Berrangé | e154fd7 | 2019-02-11 18:24:34 +0000 | [diff] [blame] | 1419 | return; |
Marc-André Lureau | 4591bd4 | 2018-07-17 14:31:45 +0200 | [diff] [blame] | 1420 | } |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1421 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1422 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE); |
Bin Meng | 120fa5e | 2022-08-02 15:51:59 +0800 | [diff] [blame] | 1423 | #ifndef _WIN32 |
Markus Armbruster | ca0b64e | 2017-03-30 19:43:09 +0200 | [diff] [blame] | 1424 | /* TODO SOCKET_ADDRESS_FD where fd has AF_UNIX */ |
Markus Armbruster | bd269eb | 2017-04-26 09:36:41 +0200 | [diff] [blame] | 1425 | if (addr->type == SOCKET_ADDRESS_TYPE_UNIX) { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1426 | qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS); |
| 1427 | } |
Bin Meng | 120fa5e | 2022-08-02 15:51:59 +0800 | [diff] [blame] | 1428 | #endif |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1429 | |
Lukas Straub | feb774c | 2021-03-30 20:13:31 +0200 | [diff] [blame] | 1430 | /* |
| 1431 | * In the chardev-change special-case, we shouldn't register a new yank |
| 1432 | * instance, as there already may be one. |
| 1433 | */ |
| 1434 | if (!chr->handover_yank_instance) { |
| 1435 | if (!yank_register_instance(CHARDEV_YANK_INSTANCE(chr->label), errp)) { |
| 1436 | return; |
| 1437 | } |
Lukas Straub | 8ee4480 | 2020-12-28 16:08:48 +0100 | [diff] [blame] | 1438 | } |
| 1439 | s->registered_yank = true; |
| 1440 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1441 | /* be isn't opened until we get a connection */ |
| 1442 | *be_opened = false; |
| 1443 | |
Marc-André Lureau | bbcde96 | 2016-12-20 15:32:31 +0100 | [diff] [blame] | 1444 | update_disconnected_filename(s); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1445 | |
Daniel P. Berrangé | b5e18e5 | 2019-02-11 18:24:36 +0000 | [diff] [blame] | 1446 | if (s->is_listen) { |
| 1447 | if (qmp_chardev_open_socket_server(chr, is_telnet || is_tn3270, |
| 1448 | is_waitconnect, errp) < 0) { |
| 1449 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1450 | } |
Marc-André Lureau | 5573f98 | 2018-08-17 15:52:22 +0200 | [diff] [blame] | 1451 | } else { |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1452 | if (sock->has_reconnect) { |
| 1453 | reconnect_ms = sock->reconnect * 1000ULL; |
| 1454 | } else if (sock->has_reconnect_ms) { |
| 1455 | reconnect_ms = sock->reconnect_ms; |
| 1456 | } |
| 1457 | |
| 1458 | if (qmp_chardev_open_socket_client(chr, reconnect_ms, errp) < 0) { |
Daniel P. Berrangé | e154fd7 | 2019-02-11 18:24:34 +0000 | [diff] [blame] | 1459 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1460 | } |
| 1461 | } |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1462 | } |
| 1463 | |
| 1464 | static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, |
| 1465 | Error **errp) |
| 1466 | { |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1467 | const char *path = qemu_opt_get(opts, "path"); |
| 1468 | const char *host = qemu_opt_get(opts, "host"); |
| 1469 | const char *port = qemu_opt_get(opts, "port"); |
Daniel P. Berrange | 0935700 | 2017-12-21 12:57:54 +0000 | [diff] [blame] | 1470 | const char *fd = qemu_opt_get(opts, "fd"); |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 1471 | #ifdef CONFIG_LINUX |
xiaoqiang zhao | 776b97d | 2020-05-16 11:13:25 +0800 | [diff] [blame] | 1472 | bool tight = qemu_opt_get_bool(opts, "tight", true); |
| 1473 | bool abstract = qemu_opt_get_bool(opts, "abstract", false); |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 1474 | #endif |
Markus Armbruster | dfd100f | 2017-04-26 09:36:39 +0200 | [diff] [blame] | 1475 | SocketAddressLegacy *addr; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1476 | ChardevSocket *sock; |
| 1477 | |
Marc-André Lureau | 1b87751 | 2021-07-25 23:59:12 +0400 | [diff] [blame] | 1478 | if ((!!path + !!fd + !!host) > 1) { |
Daniel P. Berrange | 9bb4060 | 2017-12-22 13:20:40 +0000 | [diff] [blame] | 1479 | error_setg(errp, |
Marc-André Lureau | 1b87751 | 2021-07-25 23:59:12 +0400 | [diff] [blame] | 1480 | "None or one of 'path', 'fd' or 'host' option required."); |
Daniel P. Berrange | 9bb4060 | 2017-12-22 13:20:40 +0000 | [diff] [blame] | 1481 | return; |
| 1482 | } |
| 1483 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1484 | if (host && !port) { |
| 1485 | error_setg(errp, "chardev: socket: no port given"); |
| 1486 | return; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1487 | } |
| 1488 | |
Daniel P. Berrangé | 1645984 | 2019-02-11 18:24:29 +0000 | [diff] [blame] | 1489 | backend->type = CHARDEV_BACKEND_KIND_SOCKET; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1490 | sock = backend->u.socket.data = g_new0(ChardevSocket, 1); |
| 1491 | qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock)); |
| 1492 | |
Paolo Bonzini | a9b1315 | 2021-02-25 11:47:52 +0100 | [diff] [blame] | 1493 | if (qemu_opt_get(opts, "delay") && qemu_opt_get(opts, "nodelay")) { |
| 1494 | error_setg(errp, "'delay' and 'nodelay' are mutually exclusive"); |
| 1495 | return; |
| 1496 | } |
| 1497 | sock->has_nodelay = |
| 1498 | qemu_opt_get(opts, "delay") || |
| 1499 | qemu_opt_get(opts, "nodelay"); |
| 1500 | sock->nodelay = |
| 1501 | !qemu_opt_get_bool(opts, "delay", true) || |
| 1502 | qemu_opt_get_bool(opts, "nodelay", false); |
| 1503 | |
Daniel P. Berrangé | 5981c3a | 2019-02-11 18:24:32 +0000 | [diff] [blame] | 1504 | /* |
| 1505 | * We have different default to QMP for 'server', hence |
| 1506 | * we can't just check for existence of 'server' |
| 1507 | */ |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1508 | sock->has_server = true; |
Daniel P. Berrangé | 5981c3a | 2019-02-11 18:24:32 +0000 | [diff] [blame] | 1509 | sock->server = qemu_opt_get_bool(opts, "server", false); |
| 1510 | sock->has_telnet = qemu_opt_get(opts, "telnet"); |
| 1511 | sock->telnet = qemu_opt_get_bool(opts, "telnet", false); |
| 1512 | sock->has_tn3270 = qemu_opt_get(opts, "tn3270"); |
| 1513 | sock->tn3270 = qemu_opt_get_bool(opts, "tn3270", false); |
| 1514 | sock->has_websocket = qemu_opt_get(opts, "websocket"); |
| 1515 | sock->websocket = qemu_opt_get_bool(opts, "websocket", false); |
Daniel P. Berrangé | 767abe7 | 2019-02-11 18:24:31 +0000 | [diff] [blame] | 1516 | /* |
| 1517 | * We have different default to QMP for 'wait' when 'server' |
| 1518 | * is set, hence we can't just check for existence of 'wait' |
| 1519 | */ |
Daniel P. Berrangé | 5981c3a | 2019-02-11 18:24:32 +0000 | [diff] [blame] | 1520 | sock->has_wait = qemu_opt_find(opts, "wait") || sock->server; |
| 1521 | sock->wait = qemu_opt_get_bool(opts, "wait", true); |
Marc-André Lureau | 3b02375 | 2018-07-17 14:43:51 +0200 | [diff] [blame] | 1522 | sock->has_reconnect = qemu_opt_find(opts, "reconnect"); |
Daniel P. Berrangé | 5981c3a | 2019-02-11 18:24:32 +0000 | [diff] [blame] | 1523 | sock->reconnect = qemu_opt_get_number(opts, "reconnect", 0); |
Daniil Tatianin | c8e2b6b | 2024-09-13 12:46:04 +0300 | [diff] [blame] | 1524 | sock->has_reconnect_ms = qemu_opt_find(opts, "reconnect-ms"); |
| 1525 | sock->reconnect_ms = qemu_opt_get_number(opts, "reconnect-ms", 0); |
| 1526 | |
Daniel P. Berrangé | 5981c3a | 2019-02-11 18:24:32 +0000 | [diff] [blame] | 1527 | sock->tls_creds = g_strdup(qemu_opt_get(opts, "tls-creds")); |
Daniel P. Berrange | fd4a5fd | 2019-03-08 15:21:50 +0000 | [diff] [blame] | 1528 | sock->tls_authz = g_strdup(qemu_opt_get(opts, "tls-authz")); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1529 | |
Markus Armbruster | dfd100f | 2017-04-26 09:36:39 +0200 | [diff] [blame] | 1530 | addr = g_new0(SocketAddressLegacy, 1); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1531 | if (path) { |
| 1532 | UnixSocketAddress *q_unix; |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 1533 | addr->type = SOCKET_ADDRESS_TYPE_UNIX; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1534 | q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); |
| 1535 | q_unix->path = g_strdup(path); |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 1536 | #ifdef CONFIG_LINUX |
Markus Armbruster | b08cc97 | 2020-11-02 10:44:18 +0100 | [diff] [blame] | 1537 | q_unix->has_tight = true; |
xiaoqiang zhao | 776b97d | 2020-05-16 11:13:25 +0800 | [diff] [blame] | 1538 | q_unix->tight = tight; |
Markus Armbruster | b08cc97 | 2020-11-02 10:44:18 +0100 | [diff] [blame] | 1539 | q_unix->has_abstract = true; |
xiaoqiang zhao | 776b97d | 2020-05-16 11:13:25 +0800 | [diff] [blame] | 1540 | q_unix->abstract = abstract; |
Markus Armbruster | 8acefc7 | 2020-11-02 10:44:22 +0100 | [diff] [blame] | 1541 | #endif |
Daniel P. Berrange | 9bb4060 | 2017-12-22 13:20:40 +0000 | [diff] [blame] | 1542 | } else if (host) { |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 1543 | addr->type = SOCKET_ADDRESS_TYPE_INET; |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1544 | addr->u.inet.data = g_new(InetSocketAddress, 1); |
| 1545 | *addr->u.inet.data = (InetSocketAddress) { |
| 1546 | .host = g_strdup(host), |
| 1547 | .port = g_strdup(port), |
| 1548 | .has_to = qemu_opt_get(opts, "to"), |
| 1549 | .to = qemu_opt_get_number(opts, "to", 0), |
| 1550 | .has_ipv4 = qemu_opt_get(opts, "ipv4"), |
| 1551 | .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0), |
| 1552 | .has_ipv6 = qemu_opt_get(opts, "ipv6"), |
| 1553 | .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0), |
| 1554 | }; |
Marc-André Lureau | 1b87751 | 2021-07-25 23:59:12 +0400 | [diff] [blame] | 1555 | } else { |
Markus Armbruster | 935a867 | 2021-09-17 16:31:19 +0200 | [diff] [blame] | 1556 | addr->type = SOCKET_ADDRESS_TYPE_FD; |
Markus Armbruster | 4edb196 | 2024-02-05 08:47:07 +0100 | [diff] [blame] | 1557 | addr->u.fd.data = g_new(FdSocketAddress, 1); |
Daniel P. Berrange | 0935700 | 2017-12-21 12:57:54 +0000 | [diff] [blame] | 1558 | addr->u.fd.data->str = g_strdup(fd); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1559 | } |
| 1560 | sock->addr = addr; |
| 1561 | } |
| 1562 | |
Marc-André Lureau | 123676e | 2016-12-21 12:26:38 +0100 | [diff] [blame] | 1563 | static void |
| 1564 | char_socket_get_addr(Object *obj, Visitor *v, const char *name, |
| 1565 | void *opaque, Error **errp) |
| 1566 | { |
| 1567 | SocketChardev *s = SOCKET_CHARDEV(obj); |
| 1568 | |
| 1569 | visit_type_SocketAddress(v, name, &s->addr, errp); |
| 1570 | } |
| 1571 | |
Marc-André Lureau | da2d19b | 2016-12-21 15:43:46 +0100 | [diff] [blame] | 1572 | static bool |
| 1573 | char_socket_get_connected(Object *obj, Error **errp) |
| 1574 | { |
| 1575 | SocketChardev *s = SOCKET_CHARDEV(obj); |
| 1576 | |
Daniel P. Berrangé | 32423cc | 2019-02-11 18:24:37 +0000 | [diff] [blame] | 1577 | return s->state == TCP_CHARDEV_STATE_CONNECTED; |
Marc-André Lureau | da2d19b | 2016-12-21 15:43:46 +0100 | [diff] [blame] | 1578 | } |
| 1579 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1580 | static void char_socket_class_init(ObjectClass *oc, void *data) |
| 1581 | { |
| 1582 | ChardevClass *cc = CHARDEV_CLASS(oc); |
| 1583 | |
Lukas Straub | feb774c | 2021-03-30 20:13:31 +0200 | [diff] [blame] | 1584 | cc->supports_yank = true; |
| 1585 | |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1586 | cc->parse = qemu_chr_parse_socket; |
| 1587 | cc->open = qmp_chardev_open_socket; |
| 1588 | cc->chr_wait_connected = tcp_chr_wait_connected; |
| 1589 | cc->chr_write = tcp_chr_write; |
| 1590 | cc->chr_sync_read = tcp_chr_sync_read; |
| 1591 | cc->chr_disconnect = tcp_chr_disconnect; |
| 1592 | cc->get_msgfds = tcp_get_msgfds; |
| 1593 | cc->set_msgfds = tcp_set_msgfds; |
| 1594 | cc->chr_add_client = tcp_chr_add_client; |
| 1595 | cc->chr_add_watch = tcp_chr_add_watch; |
| 1596 | cc->chr_update_read_handler = tcp_chr_update_read_handler; |
Marc-André Lureau | 123676e | 2016-12-21 12:26:38 +0100 | [diff] [blame] | 1597 | |
| 1598 | object_class_property_add(oc, "addr", "SocketAddress", |
| 1599 | char_socket_get_addr, NULL, |
Markus Armbruster | d262312 | 2020-05-05 17:29:22 +0200 | [diff] [blame] | 1600 | NULL, NULL); |
Marc-André Lureau | da2d19b | 2016-12-21 15:43:46 +0100 | [diff] [blame] | 1601 | |
| 1602 | object_class_property_add_bool(oc, "connected", char_socket_get_connected, |
Markus Armbruster | d262312 | 2020-05-05 17:29:22 +0200 | [diff] [blame] | 1603 | NULL); |
Marc-André Lureau | d24ca4b | 2016-12-12 18:41:00 +0300 | [diff] [blame] | 1604 | } |
| 1605 | |
| 1606 | static const TypeInfo char_socket_type_info = { |
| 1607 | .name = TYPE_CHARDEV_SOCKET, |
| 1608 | .parent = TYPE_CHARDEV, |
| 1609 | .instance_size = sizeof(SocketChardev), |
| 1610 | .instance_finalize = char_socket_finalize, |
| 1611 | .class_init = char_socket_class_init, |
| 1612 | }; |
| 1613 | |
| 1614 | static void register_types(void) |
| 1615 | { |
| 1616 | type_register_static(&char_socket_type_info); |
| 1617 | } |
| 1618 | |
| 1619 | type_init(register_types); |