aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [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 | */ |
| 24 | #include "qemu-common.h" |
Paolo Bonzini | 83c9089 | 2012-12-17 18:19:49 +0100 | [diff] [blame] | 25 | #include "monitor/monitor.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 26 | #include "sysemu/sysemu.h" |
Markus Armbruster | d49b683 | 2015-03-17 18:29:20 +0100 | [diff] [blame] | 27 | #include "qemu/error-report.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 28 | #include "qemu/timer.h" |
Paolo Bonzini | dccfcd0 | 2013-04-08 16:55:25 +0200 | [diff] [blame] | 29 | #include "sysemu/char.h" |
aurel32 | cf3ebac | 2008-11-01 00:53:09 +0000 | [diff] [blame] | 30 | #include "hw/usb.h" |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 31 | #include "qmp-commands.h" |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 32 | #include "qapi/qmp-input-visitor.h" |
| 33 | #include "qapi/qmp-output-visitor.h" |
| 34 | #include "qapi-visit.h" |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 35 | |
| 36 | #include <unistd.h> |
| 37 | #include <fcntl.h> |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 38 | #include <time.h> |
| 39 | #include <errno.h> |
| 40 | #include <sys/time.h> |
| 41 | #include <zlib.h> |
| 42 | |
| 43 | #ifndef _WIN32 |
| 44 | #include <sys/times.h> |
| 45 | #include <sys/wait.h> |
| 46 | #include <termios.h> |
| 47 | #include <sys/mman.h> |
| 48 | #include <sys/ioctl.h> |
blueswir1 | 24646c7 | 2008-11-07 16:55:48 +0000 | [diff] [blame] | 49 | #include <sys/resource.h> |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 50 | #include <sys/socket.h> |
| 51 | #include <netinet/in.h> |
blueswir1 | 24646c7 | 2008-11-07 16:55:48 +0000 | [diff] [blame] | 52 | #include <net/if.h> |
blueswir1 | 24646c7 | 2008-11-07 16:55:48 +0000 | [diff] [blame] | 53 | #include <arpa/inet.h> |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 54 | #include <netdb.h> |
| 55 | #include <sys/select.h> |
Juan Quintela | 71e72a1 | 2009-07-27 16:12:56 +0200 | [diff] [blame] | 56 | #ifdef CONFIG_BSD |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 57 | #include <sys/stat.h> |
Michael Tokarev | 3294ce1 | 2012-06-02 23:43:33 +0400 | [diff] [blame] | 58 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) |
| 59 | #include <dev/ppbus/ppi.h> |
| 60 | #include <dev/ppbus/ppbconf.h> |
| 61 | #elif defined(__DragonFly__) |
| 62 | #include <dev/misc/ppi/ppi.h> |
| 63 | #include <bus/ppbus/ppbconf.h> |
| 64 | #endif |
Aurelien Jarno | bbe813a | 2009-11-30 15:42:59 +0100 | [diff] [blame] | 65 | #else |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 66 | #ifdef __linux__ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 67 | #include <linux/ppdev.h> |
| 68 | #include <linux/parport.h> |
| 69 | #endif |
| 70 | #ifdef __sun__ |
| 71 | #include <sys/stat.h> |
| 72 | #include <sys/ethernet.h> |
| 73 | #include <sys/sockio.h> |
| 74 | #include <netinet/arp.h> |
| 75 | #include <netinet/in.h> |
| 76 | #include <netinet/in_systm.h> |
| 77 | #include <netinet/ip.h> |
| 78 | #include <netinet/ip_icmp.h> // must come after ip.h |
| 79 | #include <netinet/udp.h> |
| 80 | #include <netinet/tcp.h> |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 81 | #endif |
| 82 | #endif |
| 83 | #endif |
| 84 | |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 85 | #include "qemu/sockets.h" |
Alon Levy | cbcc633 | 2011-01-19 10:49:50 +0200 | [diff] [blame] | 86 | #include "ui/qemu-spice.h" |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 87 | |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 88 | #define READ_BUF_LEN 4096 |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 89 | #define READ_RETRIES 10 |
Corey Minyard | 9f78116 | 2014-10-02 11:17:33 -0500 | [diff] [blame] | 90 | #define CHR_MAX_FILENAME_SIZE 256 |
Michael S. Tsirkin | c409572 | 2014-11-02 18:48:32 +0200 | [diff] [blame] | 91 | #define TCP_MAX_FDS 16 |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 92 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 93 | /***********************************************************/ |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 94 | /* Socket address helpers */ |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 95 | |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 96 | static int SocketAddress_to_str(char *dest, int max_len, |
| 97 | const char *prefix, SocketAddress *addr, |
| 98 | bool is_listen, bool is_telnet) |
| 99 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 100 | switch (addr->type) { |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 101 | case SOCKET_ADDRESS_KIND_INET: |
| 102 | return snprintf(dest, max_len, "%s%s:%s:%s%s", prefix, |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 103 | is_telnet ? "telnet" : "tcp", addr->u.inet->host, |
| 104 | addr->u.inet->port, is_listen ? ",server" : ""); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 105 | break; |
| 106 | case SOCKET_ADDRESS_KIND_UNIX: |
| 107 | return snprintf(dest, max_len, "%sunix:%s%s", prefix, |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 108 | addr->u.q_unix->path, is_listen ? ",server" : ""); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 109 | break; |
| 110 | case SOCKET_ADDRESS_KIND_FD: |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 111 | return snprintf(dest, max_len, "%sfd:%s%s", prefix, addr->u.fd->str, |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 112 | is_listen ? ",server" : ""); |
| 113 | break; |
| 114 | default: |
| 115 | abort(); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | static int sockaddr_to_str(char *dest, int max_len, |
| 120 | struct sockaddr_storage *ss, socklen_t ss_len, |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 121 | struct sockaddr_storage *ps, socklen_t ps_len, |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 122 | bool is_listen, bool is_telnet) |
| 123 | { |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 124 | char shost[NI_MAXHOST], sserv[NI_MAXSERV]; |
| 125 | char phost[NI_MAXHOST], pserv[NI_MAXSERV]; |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 126 | const char *left = "", *right = ""; |
| 127 | |
| 128 | switch (ss->ss_family) { |
| 129 | #ifndef _WIN32 |
| 130 | case AF_UNIX: |
| 131 | return snprintf(dest, max_len, "unix:%s%s", |
| 132 | ((struct sockaddr_un *)(ss))->sun_path, |
| 133 | is_listen ? ",server" : ""); |
| 134 | #endif |
| 135 | case AF_INET6: |
| 136 | left = "["; |
| 137 | right = "]"; |
| 138 | /* fall through */ |
| 139 | case AF_INET: |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 140 | getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost), |
| 141 | sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV); |
| 142 | getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost), |
| 143 | pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV); |
| 144 | return snprintf(dest, max_len, "%s:%s%s%s:%s%s <-> %s%s%s:%s", |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 145 | is_telnet ? "telnet" : "tcp", |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 146 | left, shost, right, sserv, |
| 147 | is_listen ? ",server" : "", |
| 148 | left, phost, right, pserv); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 149 | |
| 150 | default: |
| 151 | return snprintf(dest, max_len, "unknown"); |
| 152 | } |
| 153 | } |
| 154 | |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 155 | /***********************************************************/ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 156 | /* character device */ |
| 157 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 158 | static QTAILQ_HEAD(CharDriverStateHead, CharDriverState) chardevs = |
| 159 | QTAILQ_HEAD_INITIALIZER(chardevs); |
aliguori | 2970a6c | 2009-03-05 22:59:58 +0000 | [diff] [blame] | 160 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 161 | CharDriverState *qemu_chr_alloc(void) |
| 162 | { |
| 163 | CharDriverState *chr = g_malloc0(sizeof(CharDriverState)); |
Paolo Bonzini | f3db17b | 2014-06-25 09:04:57 +0200 | [diff] [blame] | 164 | qemu_mutex_init(&chr->chr_write_lock); |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 165 | return chr; |
| 166 | } |
| 167 | |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 168 | void qemu_chr_be_event(CharDriverState *s, int event) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 169 | { |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 170 | /* Keep track if the char device is open */ |
| 171 | switch (event) { |
| 172 | case CHR_EVENT_OPENED: |
Hans de Goede | 16665b9 | 2013-03-26 11:07:53 +0100 | [diff] [blame] | 173 | s->be_open = 1; |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 174 | break; |
| 175 | case CHR_EVENT_CLOSED: |
Hans de Goede | 16665b9 | 2013-03-26 11:07:53 +0100 | [diff] [blame] | 176 | s->be_open = 0; |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 177 | break; |
| 178 | } |
| 179 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 180 | if (!s->chr_event) |
| 181 | return; |
| 182 | s->chr_event(s->handler_opaque, event); |
| 183 | } |
| 184 | |
Hans de Goede | fee204f | 2013-03-26 11:07:54 +0100 | [diff] [blame] | 185 | void qemu_chr_be_generic_open(CharDriverState *s) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 186 | { |
Michael Roth | bd5c51e | 2013-06-07 15:19:53 -0500 | [diff] [blame] | 187 | qemu_chr_be_event(s, CHR_EVENT_OPENED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 188 | } |
| 189 | |
Anthony Liguori | 2cc6e0a | 2011-08-15 11:17:28 -0500 | [diff] [blame] | 190 | int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 191 | { |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 192 | int ret; |
| 193 | |
| 194 | qemu_mutex_lock(&s->chr_write_lock); |
| 195 | ret = s->chr_write(s, buf, len); |
| 196 | qemu_mutex_unlock(&s->chr_write_lock); |
| 197 | return ret; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 198 | } |
| 199 | |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 200 | int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len) |
| 201 | { |
| 202 | int offset = 0; |
Igor Mammedov | 0931304 | 2014-06-25 10:00:41 +0200 | [diff] [blame] | 203 | int res = 0; |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 204 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 205 | qemu_mutex_lock(&s->chr_write_lock); |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 206 | while (offset < len) { |
| 207 | do { |
| 208 | res = s->chr_write(s, buf + offset, len - offset); |
| 209 | if (res == -1 && errno == EAGAIN) { |
| 210 | g_usleep(100); |
| 211 | } |
| 212 | } while (res == -1 && errno == EAGAIN); |
| 213 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 214 | if (res <= 0) { |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 215 | break; |
| 216 | } |
| 217 | |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 218 | offset += res; |
| 219 | } |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 220 | qemu_mutex_unlock(&s->chr_write_lock); |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 221 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 222 | if (res < 0) { |
| 223 | return res; |
| 224 | } |
Anthony Liguori | cd18720 | 2013-03-26 10:04:17 -0500 | [diff] [blame] | 225 | return offset; |
| 226 | } |
| 227 | |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 228 | int qemu_chr_fe_read_all(CharDriverState *s, uint8_t *buf, int len) |
| 229 | { |
| 230 | int offset = 0, counter = 10; |
| 231 | int res; |
| 232 | |
| 233 | if (!s->chr_sync_read) { |
| 234 | return 0; |
| 235 | } |
| 236 | |
| 237 | while (offset < len) { |
| 238 | do { |
| 239 | res = s->chr_sync_read(s, buf + offset, len - offset); |
| 240 | if (res == -1 && errno == EAGAIN) { |
| 241 | g_usleep(100); |
| 242 | } |
| 243 | } while (res == -1 && errno == EAGAIN); |
| 244 | |
| 245 | if (res == 0) { |
| 246 | break; |
| 247 | } |
| 248 | |
| 249 | if (res < 0) { |
| 250 | return res; |
| 251 | } |
| 252 | |
| 253 | offset += res; |
| 254 | |
| 255 | if (!counter--) { |
| 256 | break; |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | return offset; |
| 261 | } |
| 262 | |
Anthony Liguori | 41084f1 | 2011-08-15 11:17:34 -0500 | [diff] [blame] | 263 | int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 264 | { |
| 265 | if (!s->chr_ioctl) |
| 266 | return -ENOTSUP; |
| 267 | return s->chr_ioctl(s, cmd, arg); |
| 268 | } |
| 269 | |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 270 | int qemu_chr_be_can_write(CharDriverState *s) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 271 | { |
| 272 | if (!s->chr_can_read) |
| 273 | return 0; |
| 274 | return s->chr_can_read(s->handler_opaque); |
| 275 | } |
| 276 | |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 277 | void qemu_chr_be_write(CharDriverState *s, uint8_t *buf, int len) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 278 | { |
Stefan Weil | ac31073 | 2012-04-19 22:27:14 +0200 | [diff] [blame] | 279 | if (s->chr_read) { |
| 280 | s->chr_read(s->handler_opaque, buf, len); |
| 281 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 282 | } |
| 283 | |
Anthony Liguori | 74c0d6f | 2011-08-15 11:17:39 -0500 | [diff] [blame] | 284 | int qemu_chr_fe_get_msgfd(CharDriverState *s) |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 285 | { |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 286 | int fd; |
Stefan Hajnoczi | 4f85861 | 2014-06-22 10:38:36 +0800 | [diff] [blame] | 287 | return (qemu_chr_fe_get_msgfds(s, &fd, 1) == 1) ? fd : -1; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | int qemu_chr_fe_get_msgfds(CharDriverState *s, int *fds, int len) |
| 291 | { |
| 292 | return s->get_msgfds ? s->get_msgfds(s, fds, len) : -1; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 293 | } |
| 294 | |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 295 | int qemu_chr_fe_set_msgfds(CharDriverState *s, int *fds, int num) |
| 296 | { |
| 297 | return s->set_msgfds ? s->set_msgfds(s, fds, num) : -1; |
| 298 | } |
| 299 | |
Daniel P. Berrange | 1366108 | 2011-06-23 13:31:42 +0100 | [diff] [blame] | 300 | int qemu_chr_add_client(CharDriverState *s, int fd) |
| 301 | { |
| 302 | return s->chr_add_client ? s->chr_add_client(s, fd) : -1; |
| 303 | } |
| 304 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 305 | void qemu_chr_accept_input(CharDriverState *s) |
| 306 | { |
| 307 | if (s->chr_accept_input) |
| 308 | s->chr_accept_input(s); |
Jan Kiszka | 98c8ee1 | 2012-03-16 13:18:00 +0100 | [diff] [blame] | 309 | qemu_notify_event(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 310 | } |
| 311 | |
Anthony Liguori | e7e71b0 | 2011-08-15 11:17:29 -0500 | [diff] [blame] | 312 | void qemu_chr_fe_printf(CharDriverState *s, const char *fmt, ...) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 313 | { |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 314 | char buf[READ_BUF_LEN]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 315 | va_list ap; |
| 316 | va_start(ap, fmt); |
| 317 | vsnprintf(buf, sizeof(buf), fmt, ap); |
Anthony Liguori | 2cc6e0a | 2011-08-15 11:17:28 -0500 | [diff] [blame] | 318 | qemu_chr_fe_write(s, (uint8_t *)buf, strlen(buf)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 319 | va_end(ap); |
| 320 | } |
| 321 | |
Amit Shah | 386a5a1 | 2013-08-28 15:24:05 +0530 | [diff] [blame] | 322 | static void remove_fd_in_watch(CharDriverState *chr); |
| 323 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 324 | void qemu_chr_add_handlers(CharDriverState *s, |
Juan Quintela | 7b27a76 | 2010-03-11 17:55:39 +0100 | [diff] [blame] | 325 | IOCanReadHandler *fd_can_read, |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 326 | IOReadHandler *fd_read, |
| 327 | IOEventHandler *fd_event, |
| 328 | void *opaque) |
| 329 | { |
Hans de Goede | 1908322 | 2013-03-26 11:07:56 +0100 | [diff] [blame] | 330 | int fe_open; |
| 331 | |
Amit Shah | da7d998 | 2011-04-25 15:18:22 +0530 | [diff] [blame] | 332 | if (!opaque && !fd_can_read && !fd_read && !fd_event) { |
Hans de Goede | 1908322 | 2013-03-26 11:07:56 +0100 | [diff] [blame] | 333 | fe_open = 0; |
Amit Shah | 386a5a1 | 2013-08-28 15:24:05 +0530 | [diff] [blame] | 334 | remove_fd_in_watch(s); |
Hans de Goede | 1908322 | 2013-03-26 11:07:56 +0100 | [diff] [blame] | 335 | } else { |
| 336 | fe_open = 1; |
Amit Shah | 2d6c1ef | 2011-02-10 12:55:20 +0530 | [diff] [blame] | 337 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 338 | s->chr_can_read = fd_can_read; |
| 339 | s->chr_read = fd_read; |
| 340 | s->chr_event = fd_event; |
| 341 | s->handler_opaque = opaque; |
Gal Hammer | ac1b84d | 2014-02-25 12:12:35 +0200 | [diff] [blame] | 342 | if (fe_open && s->chr_update_read_handler) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 343 | s->chr_update_read_handler(s); |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 344 | |
Hans de Goede | 1908322 | 2013-03-26 11:07:56 +0100 | [diff] [blame] | 345 | if (!s->explicit_fe_open) { |
Hans de Goede | 8e25daa | 2013-03-26 11:07:57 +0100 | [diff] [blame] | 346 | qemu_chr_fe_set_open(s, fe_open); |
Hans de Goede | 1908322 | 2013-03-26 11:07:56 +0100 | [diff] [blame] | 347 | } |
| 348 | |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 349 | /* We're connecting to an already opened device, so let's make sure we |
| 350 | also get the open event */ |
Hans de Goede | a59bcd3 | 2013-03-26 11:08:00 +0100 | [diff] [blame] | 351 | if (fe_open && s->be_open) { |
Hans de Goede | fee204f | 2013-03-26 11:07:54 +0100 | [diff] [blame] | 352 | qemu_chr_be_generic_open(s); |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 353 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 357 | { |
| 358 | return len; |
| 359 | } |
| 360 | |
Paolo Bonzini | 0d64992 | 2015-09-29 15:24:29 +0200 | [diff] [blame] | 361 | static CharDriverState *qemu_chr_open_null(const char *id, |
| 362 | ChardevBackend *backend, |
| 363 | ChardevReturn *ret, |
| 364 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 365 | { |
| 366 | CharDriverState *chr; |
| 367 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 368 | chr = qemu_chr_alloc(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 369 | chr->chr_write = null_chr_write; |
Michael Roth | bd5c51e | 2013-06-07 15:19:53 -0500 | [diff] [blame] | 370 | chr->explicit_be_open = true; |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 371 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 372 | } |
| 373 | |
| 374 | /* MUX driver for serial I/O splitting */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 375 | #define MAX_MUX 4 |
| 376 | #define MUX_BUFFER_SIZE 32 /* Must be a power of 2. */ |
| 377 | #define MUX_BUFFER_MASK (MUX_BUFFER_SIZE - 1) |
| 378 | typedef struct { |
Juan Quintela | 7b27a76 | 2010-03-11 17:55:39 +0100 | [diff] [blame] | 379 | IOCanReadHandler *chr_can_read[MAX_MUX]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 380 | IOReadHandler *chr_read[MAX_MUX]; |
| 381 | IOEventHandler *chr_event[MAX_MUX]; |
| 382 | void *ext_opaque[MAX_MUX]; |
| 383 | CharDriverState *drv; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 384 | int focus; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 385 | int mux_cnt; |
| 386 | int term_got_escape; |
| 387 | int max_size; |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 388 | /* Intermediate input buffer allows to catch escape sequences even if the |
| 389 | currently active device is not accepting any input - but only until it |
| 390 | is full as well. */ |
| 391 | unsigned char buffer[MAX_MUX][MUX_BUFFER_SIZE]; |
| 392 | int prod[MAX_MUX]; |
| 393 | int cons[MAX_MUX]; |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 394 | int timestamps; |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 395 | |
| 396 | /* Protected by the CharDriverState chr_write_lock. */ |
Jan Kiszka | 4ab312f | 2009-06-15 22:25:34 +0200 | [diff] [blame] | 397 | int linestart; |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 398 | int64_t timestamps_start; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 399 | } MuxDriver; |
| 400 | |
| 401 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 402 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 403 | static int mux_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 404 | { |
| 405 | MuxDriver *d = chr->opaque; |
| 406 | int ret; |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 407 | if (!d->timestamps) { |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 408 | ret = qemu_chr_fe_write(d->drv, buf, len); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 409 | } else { |
| 410 | int i; |
| 411 | |
| 412 | ret = 0; |
Jan Kiszka | 4ab312f | 2009-06-15 22:25:34 +0200 | [diff] [blame] | 413 | for (i = 0; i < len; i++) { |
| 414 | if (d->linestart) { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 415 | char buf1[64]; |
| 416 | int64_t ti; |
| 417 | int secs; |
| 418 | |
Alex Bligh | bc72ad6 | 2013-08-21 16:03:08 +0100 | [diff] [blame] | 419 | ti = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 420 | if (d->timestamps_start == -1) |
| 421 | d->timestamps_start = ti; |
| 422 | ti -= d->timestamps_start; |
aliguori | a4bb1db | 2009-01-22 17:15:16 +0000 | [diff] [blame] | 423 | secs = ti / 1000; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 424 | snprintf(buf1, sizeof(buf1), |
| 425 | "[%02d:%02d:%02d.%03d] ", |
| 426 | secs / 3600, |
| 427 | (secs / 60) % 60, |
| 428 | secs % 60, |
aliguori | a4bb1db | 2009-01-22 17:15:16 +0000 | [diff] [blame] | 429 | (int)(ti % 1000)); |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 430 | qemu_chr_fe_write(d->drv, (uint8_t *)buf1, strlen(buf1)); |
Jan Kiszka | 4ab312f | 2009-06-15 22:25:34 +0200 | [diff] [blame] | 431 | d->linestart = 0; |
| 432 | } |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 433 | ret += qemu_chr_fe_write(d->drv, buf+i, 1); |
Jan Kiszka | 4ab312f | 2009-06-15 22:25:34 +0200 | [diff] [blame] | 434 | if (buf[i] == '\n') { |
| 435 | d->linestart = 1; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 436 | } |
| 437 | } |
| 438 | } |
| 439 | return ret; |
| 440 | } |
| 441 | |
| 442 | static const char * const mux_help[] = { |
| 443 | "% h print this help\n\r", |
| 444 | "% x exit emulator\n\r", |
| 445 | "% s save disk data back to file (if -snapshot)\n\r", |
Gonglei | 86d1032 | 2014-11-15 18:06:46 +0800 | [diff] [blame] | 446 | "% t toggle console timestamps\n\r", |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 447 | "% b send break (magic sysrq)\n\r", |
| 448 | "% c switch between console and monitor\n\r", |
| 449 | "% % sends %\n\r", |
| 450 | NULL |
| 451 | }; |
| 452 | |
| 453 | int term_escape_char = 0x01; /* ctrl-a is used for escape */ |
| 454 | static void mux_print_help(CharDriverState *chr) |
| 455 | { |
| 456 | int i, j; |
| 457 | char ebuf[15] = "Escape-Char"; |
| 458 | char cbuf[50] = "\n\r"; |
| 459 | |
| 460 | if (term_escape_char > 0 && term_escape_char < 26) { |
| 461 | snprintf(cbuf, sizeof(cbuf), "\n\r"); |
| 462 | snprintf(ebuf, sizeof(ebuf), "C-%c", term_escape_char - 1 + 'a'); |
| 463 | } else { |
| 464 | snprintf(cbuf, sizeof(cbuf), |
| 465 | "\n\rEscape-Char set to Ascii: 0x%02x\n\r\n\r", |
| 466 | term_escape_char); |
| 467 | } |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 468 | qemu_chr_fe_write(chr, (uint8_t *)cbuf, strlen(cbuf)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 469 | for (i = 0; mux_help[i] != NULL; i++) { |
| 470 | for (j=0; mux_help[i][j] != '\0'; j++) { |
| 471 | if (mux_help[i][j] == '%') |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 472 | qemu_chr_fe_write(chr, (uint8_t *)ebuf, strlen(ebuf)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 473 | else |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 474 | qemu_chr_fe_write(chr, (uint8_t *)&mux_help[i][j], 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 475 | } |
| 476 | } |
| 477 | } |
| 478 | |
aliguori | 2724b18 | 2009-03-05 23:01:47 +0000 | [diff] [blame] | 479 | static void mux_chr_send_event(MuxDriver *d, int mux_nr, int event) |
| 480 | { |
| 481 | if (d->chr_event[mux_nr]) |
| 482 | d->chr_event[mux_nr](d->ext_opaque[mux_nr], event); |
| 483 | } |
| 484 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 485 | static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch) |
| 486 | { |
| 487 | if (d->term_got_escape) { |
| 488 | d->term_got_escape = 0; |
| 489 | if (ch == term_escape_char) |
| 490 | goto send_char; |
| 491 | switch(ch) { |
| 492 | case '?': |
| 493 | case 'h': |
| 494 | mux_print_help(chr); |
| 495 | break; |
| 496 | case 'x': |
| 497 | { |
| 498 | const char *term = "QEMU: Terminated\n\r"; |
Paolo Bonzini | 6975b71 | 2014-06-18 08:43:56 +0200 | [diff] [blame] | 499 | qemu_chr_fe_write(chr, (uint8_t *)term, strlen(term)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 500 | exit(0); |
| 501 | break; |
| 502 | } |
| 503 | case 's': |
Markus Armbruster | 6ab4b5a | 2010-06-02 18:55:18 +0200 | [diff] [blame] | 504 | bdrv_commit_all(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 505 | break; |
| 506 | case 'b': |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 507 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 508 | break; |
| 509 | case 'c': |
| 510 | /* Switch to the next registered device */ |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 511 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
| 512 | d->focus++; |
| 513 | if (d->focus >= d->mux_cnt) |
| 514 | d->focus = 0; |
| 515 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 516 | break; |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 517 | case 't': |
| 518 | d->timestamps = !d->timestamps; |
| 519 | d->timestamps_start = -1; |
Jan Kiszka | 4ab312f | 2009-06-15 22:25:34 +0200 | [diff] [blame] | 520 | d->linestart = 0; |
Jan Kiszka | 2d22959 | 2009-06-15 22:25:30 +0200 | [diff] [blame] | 521 | break; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 522 | } |
| 523 | } else if (ch == term_escape_char) { |
| 524 | d->term_got_escape = 1; |
| 525 | } else { |
| 526 | send_char: |
| 527 | return 1; |
| 528 | } |
| 529 | return 0; |
| 530 | } |
| 531 | |
| 532 | static void mux_chr_accept_input(CharDriverState *chr) |
| 533 | { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 534 | MuxDriver *d = chr->opaque; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 535 | int m = d->focus; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 536 | |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 537 | while (d->prod[m] != d->cons[m] && |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 538 | d->chr_can_read[m] && |
| 539 | d->chr_can_read[m](d->ext_opaque[m])) { |
| 540 | d->chr_read[m](d->ext_opaque[m], |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 541 | &d->buffer[m][d->cons[m]++ & MUX_BUFFER_MASK], 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 542 | } |
| 543 | } |
| 544 | |
| 545 | static int mux_chr_can_read(void *opaque) |
| 546 | { |
| 547 | CharDriverState *chr = opaque; |
| 548 | MuxDriver *d = chr->opaque; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 549 | int m = d->focus; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 550 | |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 551 | if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 552 | return 1; |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 553 | if (d->chr_can_read[m]) |
| 554 | return d->chr_can_read[m](d->ext_opaque[m]); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 555 | return 0; |
| 556 | } |
| 557 | |
| 558 | static void mux_chr_read(void *opaque, const uint8_t *buf, int size) |
| 559 | { |
| 560 | CharDriverState *chr = opaque; |
| 561 | MuxDriver *d = chr->opaque; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 562 | int m = d->focus; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 563 | int i; |
| 564 | |
| 565 | mux_chr_accept_input (opaque); |
| 566 | |
| 567 | for(i = 0; i < size; i++) |
| 568 | if (mux_proc_byte(chr, d, buf[i])) { |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 569 | if (d->prod[m] == d->cons[m] && |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 570 | d->chr_can_read[m] && |
| 571 | d->chr_can_read[m](d->ext_opaque[m])) |
| 572 | d->chr_read[m](d->ext_opaque[m], &buf[i], 1); |
| 573 | else |
aliguori | a80bf99 | 2009-03-05 23:00:02 +0000 | [diff] [blame] | 574 | d->buffer[m][d->prod[m]++ & MUX_BUFFER_MASK] = buf[i]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 575 | } |
| 576 | } |
| 577 | |
| 578 | static void mux_chr_event(void *opaque, int event) |
| 579 | { |
| 580 | CharDriverState *chr = opaque; |
| 581 | MuxDriver *d = chr->opaque; |
| 582 | int i; |
| 583 | |
| 584 | /* Send the event to all registered listeners */ |
| 585 | for (i = 0; i < d->mux_cnt; i++) |
aliguori | 2724b18 | 2009-03-05 23:01:47 +0000 | [diff] [blame] | 586 | mux_chr_send_event(d, i, event); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 587 | } |
| 588 | |
| 589 | static void mux_chr_update_read_handler(CharDriverState *chr) |
| 590 | { |
| 591 | MuxDriver *d = chr->opaque; |
| 592 | |
| 593 | if (d->mux_cnt >= MAX_MUX) { |
| 594 | fprintf(stderr, "Cannot add I/O handlers, MUX array is full\n"); |
| 595 | return; |
| 596 | } |
| 597 | d->ext_opaque[d->mux_cnt] = chr->handler_opaque; |
| 598 | d->chr_can_read[d->mux_cnt] = chr->chr_can_read; |
| 599 | d->chr_read[d->mux_cnt] = chr->chr_read; |
| 600 | d->chr_event[d->mux_cnt] = chr->chr_event; |
| 601 | /* Fix up the real driver with mux routines */ |
| 602 | if (d->mux_cnt == 0) { |
| 603 | qemu_chr_add_handlers(d->drv, mux_chr_can_read, mux_chr_read, |
| 604 | mux_chr_event, chr); |
| 605 | } |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 606 | if (d->focus != -1) { |
| 607 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_OUT); |
Gerd Hoffmann | a7aec5d | 2009-09-10 10:58:54 +0200 | [diff] [blame] | 608 | } |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 609 | d->focus = d->mux_cnt; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 610 | d->mux_cnt++; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 611 | mux_chr_send_event(d, d->focus, CHR_EVENT_MUX_IN); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 612 | } |
| 613 | |
Michael Roth | 7b7ab18 | 2013-07-30 13:04:22 -0500 | [diff] [blame] | 614 | static bool muxes_realized; |
| 615 | |
| 616 | /** |
| 617 | * Called after processing of default and command-line-specified |
| 618 | * chardevs to deliver CHR_EVENT_OPENED events to any FEs attached |
| 619 | * to a mux chardev. This is done here to ensure that |
| 620 | * output/prompts/banners are only displayed for the FE that has |
| 621 | * focus when initial command-line processing/machine init is |
| 622 | * completed. |
| 623 | * |
| 624 | * After this point, any new FE attached to any new or existing |
| 625 | * mux will receive CHR_EVENT_OPENED notifications for the BE |
| 626 | * immediately. |
| 627 | */ |
| 628 | static void muxes_realize_done(Notifier *notifier, void *unused) |
| 629 | { |
| 630 | CharDriverState *chr; |
| 631 | |
| 632 | QTAILQ_FOREACH(chr, &chardevs, next) { |
| 633 | if (chr->is_mux) { |
| 634 | MuxDriver *d = chr->opaque; |
| 635 | int i; |
| 636 | |
| 637 | /* send OPENED to all already-attached FEs */ |
| 638 | for (i = 0; i < d->mux_cnt; i++) { |
| 639 | mux_chr_send_event(d, i, CHR_EVENT_OPENED); |
| 640 | } |
| 641 | /* mark mux as OPENED so any new FEs will immediately receive |
| 642 | * OPENED event |
| 643 | */ |
| 644 | qemu_chr_be_generic_open(chr); |
| 645 | } |
| 646 | } |
| 647 | muxes_realized = true; |
| 648 | } |
| 649 | |
| 650 | static Notifier muxes_realize_notify = { |
| 651 | .notify = muxes_realize_done, |
| 652 | }; |
| 653 | |
Kirill Batuzov | 3f0838a | 2014-07-04 16:43:15 +0400 | [diff] [blame] | 654 | static GSource *mux_chr_add_watch(CharDriverState *s, GIOCondition cond) |
| 655 | { |
| 656 | MuxDriver *d = s->opaque; |
| 657 | return d->drv->chr_add_watch(d->drv, cond); |
| 658 | } |
| 659 | |
Paolo Bonzini | 3c0e5a4 | 2015-09-29 15:27:24 +0200 | [diff] [blame] | 660 | static CharDriverState *qemu_chr_open_mux(const char *id, |
| 661 | ChardevBackend *backend, |
| 662 | ChardevReturn *ret, Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 663 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 664 | ChardevMux *mux = backend->u.mux; |
Paolo Bonzini | 3c0e5a4 | 2015-09-29 15:27:24 +0200 | [diff] [blame] | 665 | CharDriverState *chr, *drv; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 666 | MuxDriver *d; |
| 667 | |
Paolo Bonzini | 3c0e5a4 | 2015-09-29 15:27:24 +0200 | [diff] [blame] | 668 | drv = qemu_chr_find(mux->chardev); |
| 669 | if (drv == NULL) { |
| 670 | error_setg(errp, "mux: base chardev %s not found", mux->chardev); |
| 671 | return NULL; |
| 672 | } |
| 673 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 674 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 675 | d = g_new0(MuxDriver, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 676 | |
| 677 | chr->opaque = d; |
| 678 | d->drv = drv; |
Gerd Hoffmann | 799f1f2 | 2009-09-10 10:58:55 +0200 | [diff] [blame] | 679 | d->focus = -1; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 680 | chr->chr_write = mux_chr_write; |
| 681 | chr->chr_update_read_handler = mux_chr_update_read_handler; |
| 682 | chr->chr_accept_input = mux_chr_accept_input; |
Hans de Goede | 7c32c4f | 2011-03-24 11:12:02 +0100 | [diff] [blame] | 683 | /* Frontend guest-open / -close notification is not support with muxes */ |
Hans de Goede | 574b711 | 2013-03-26 11:07:58 +0100 | [diff] [blame] | 684 | chr->chr_set_fe_open = NULL; |
Kirill Batuzov | 3f0838a | 2014-07-04 16:43:15 +0400 | [diff] [blame] | 685 | if (drv->chr_add_watch) { |
| 686 | chr->chr_add_watch = mux_chr_add_watch; |
| 687 | } |
Michael Roth | 7b7ab18 | 2013-07-30 13:04:22 -0500 | [diff] [blame] | 688 | /* only default to opened state if we've realized the initial |
| 689 | * set of muxes |
| 690 | */ |
| 691 | chr->explicit_be_open = muxes_realized ? 0 : 1; |
| 692 | chr->is_mux = 1; |
Alexander Graf | 73cdf3f | 2010-04-01 18:42:39 +0200 | [diff] [blame] | 693 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 694 | return chr; |
| 695 | } |
| 696 | |
| 697 | |
| 698 | #ifdef _WIN32 |
aliguori | d247d25 | 2008-11-11 20:46:40 +0000 | [diff] [blame] | 699 | int send_all(int fd, const void *buf, int len1) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 700 | { |
| 701 | int ret, len; |
| 702 | |
| 703 | len = len1; |
| 704 | while (len > 0) { |
| 705 | ret = send(fd, buf, len, 0); |
| 706 | if (ret < 0) { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 707 | errno = WSAGetLastError(); |
| 708 | if (errno != WSAEWOULDBLOCK) { |
| 709 | return -1; |
| 710 | } |
| 711 | } else if (ret == 0) { |
| 712 | break; |
| 713 | } else { |
| 714 | buf += ret; |
| 715 | len -= ret; |
| 716 | } |
| 717 | } |
| 718 | return len1 - len; |
| 719 | } |
| 720 | |
| 721 | #else |
| 722 | |
Jes Sorensen | 5fc9cfe | 2010-11-01 20:02:23 +0100 | [diff] [blame] | 723 | int send_all(int fd, const void *_buf, int len1) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 724 | { |
| 725 | int ret, len; |
Jes Sorensen | 5fc9cfe | 2010-11-01 20:02:23 +0100 | [diff] [blame] | 726 | const uint8_t *buf = _buf; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 727 | |
| 728 | len = len1; |
| 729 | while (len > 0) { |
| 730 | ret = write(fd, buf, len); |
| 731 | if (ret < 0) { |
| 732 | if (errno != EINTR && errno != EAGAIN) |
| 733 | return -1; |
| 734 | } else if (ret == 0) { |
| 735 | break; |
| 736 | } else { |
| 737 | buf += ret; |
| 738 | len -= ret; |
| 739 | } |
| 740 | } |
| 741 | return len1 - len; |
| 742 | } |
Stefan Berger | 4549a8b | 2013-02-27 12:47:53 -0500 | [diff] [blame] | 743 | |
| 744 | int recv_all(int fd, void *_buf, int len1, bool single_read) |
| 745 | { |
| 746 | int ret, len; |
| 747 | uint8_t *buf = _buf; |
| 748 | |
| 749 | len = len1; |
| 750 | while ((len > 0) && (ret = read(fd, buf, len)) != 0) { |
| 751 | if (ret < 0) { |
| 752 | if (errno != EINTR && errno != EAGAIN) { |
| 753 | return -1; |
| 754 | } |
| 755 | continue; |
| 756 | } else { |
| 757 | if (single_read) { |
| 758 | return ret; |
| 759 | } |
| 760 | buf += ret; |
| 761 | len -= ret; |
| 762 | } |
| 763 | } |
| 764 | return len1 - len; |
| 765 | } |
| 766 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 767 | #endif /* !_WIN32 */ |
| 768 | |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 769 | typedef struct IOWatchPoll |
| 770 | { |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 771 | GSource parent; |
| 772 | |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 773 | GIOChannel *channel; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 774 | GSource *src; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 775 | |
| 776 | IOCanReadHandler *fd_can_read; |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 777 | GSourceFunc fd_read; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 778 | void *opaque; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 779 | } IOWatchPoll; |
| 780 | |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 781 | static IOWatchPoll *io_watch_poll_from_source(GSource *source) |
| 782 | { |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 783 | return container_of(source, IOWatchPoll, parent); |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_) |
| 787 | { |
| 788 | IOWatchPoll *iwp = io_watch_poll_from_source(source); |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 789 | bool now_active = iwp->fd_can_read(iwp->opaque) > 0; |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 790 | bool was_active = iwp->src != NULL; |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 791 | if (was_active == now_active) { |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 792 | return FALSE; |
| 793 | } |
| 794 | |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 795 | if (now_active) { |
Nils Carlson | 4bf1cb0 | 2015-07-19 20:39:56 +0000 | [diff] [blame] | 796 | iwp->src = g_io_create_watch(iwp->channel, |
| 797 | G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL); |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 798 | g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL); |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 799 | g_source_attach(iwp->src, NULL); |
| 800 | } else { |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 801 | g_source_destroy(iwp->src); |
| 802 | g_source_unref(iwp->src); |
| 803 | iwp->src = NULL; |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 804 | } |
| 805 | return FALSE; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 806 | } |
| 807 | |
| 808 | static gboolean io_watch_poll_check(GSource *source) |
| 809 | { |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 810 | return FALSE; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback, |
| 814 | gpointer user_data) |
| 815 | { |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 816 | abort(); |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | static void io_watch_poll_finalize(GSource *source) |
| 820 | { |
Paolo Bonzini | 2b31677 | 2013-04-19 17:32:09 +0200 | [diff] [blame] | 821 | /* Due to a glib bug, removing the last reference to a source |
| 822 | * inside a finalize callback causes recursive locking (and a |
| 823 | * deadlock). This is not a problem inside other callbacks, |
| 824 | * including dispatch callbacks, so we call io_remove_watch_poll |
| 825 | * to remove this source. At this point, iwp->src must |
| 826 | * be NULL, or we would leak it. |
| 827 | * |
| 828 | * This would be solved much more elegantly by child sources, |
| 829 | * but we support older glib versions that do not have them. |
| 830 | */ |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 831 | IOWatchPoll *iwp = io_watch_poll_from_source(source); |
Paolo Bonzini | 2b31677 | 2013-04-19 17:32:09 +0200 | [diff] [blame] | 832 | assert(iwp->src == NULL); |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | static GSourceFuncs io_watch_poll_funcs = { |
| 836 | .prepare = io_watch_poll_prepare, |
| 837 | .check = io_watch_poll_check, |
| 838 | .dispatch = io_watch_poll_dispatch, |
| 839 | .finalize = io_watch_poll_finalize, |
| 840 | }; |
| 841 | |
| 842 | /* Can only be used for read */ |
| 843 | static guint io_add_watch_poll(GIOChannel *channel, |
| 844 | IOCanReadHandler *fd_can_read, |
| 845 | GIOFunc fd_read, |
| 846 | gpointer user_data) |
| 847 | { |
| 848 | IOWatchPoll *iwp; |
Paolo Bonzini | 0ca5aa4 | 2013-04-10 15:23:27 +0200 | [diff] [blame] | 849 | int tag; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 850 | |
Paolo Bonzini | d185c09 | 2013-04-05 17:59:33 +0200 | [diff] [blame] | 851 | iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs, sizeof(IOWatchPoll)); |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 852 | iwp->fd_can_read = fd_can_read; |
| 853 | iwp->opaque = user_data; |
Paolo Bonzini | 1e885b2 | 2013-04-08 15:03:15 +0200 | [diff] [blame] | 854 | iwp->channel = channel; |
| 855 | iwp->fd_read = (GSourceFunc) fd_read; |
| 856 | iwp->src = NULL; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 857 | |
Paolo Bonzini | 0ca5aa4 | 2013-04-10 15:23:27 +0200 | [diff] [blame] | 858 | tag = g_source_attach(&iwp->parent, NULL); |
| 859 | g_source_unref(&iwp->parent); |
| 860 | return tag; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 861 | } |
| 862 | |
Paolo Bonzini | 2b31677 | 2013-04-19 17:32:09 +0200 | [diff] [blame] | 863 | static void io_remove_watch_poll(guint tag) |
| 864 | { |
| 865 | GSource *source; |
| 866 | IOWatchPoll *iwp; |
| 867 | |
| 868 | g_return_if_fail (tag > 0); |
| 869 | |
| 870 | source = g_main_context_find_source_by_id(NULL, tag); |
| 871 | g_return_if_fail (source != NULL); |
| 872 | |
| 873 | iwp = io_watch_poll_from_source(source); |
| 874 | if (iwp->src) { |
| 875 | g_source_destroy(iwp->src); |
| 876 | g_source_unref(iwp->src); |
| 877 | iwp->src = NULL; |
| 878 | } |
| 879 | g_source_destroy(&iwp->parent); |
| 880 | } |
| 881 | |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 882 | static void remove_fd_in_watch(CharDriverState *chr) |
| 883 | { |
| 884 | if (chr->fd_in_tag) { |
| 885 | io_remove_watch_poll(chr->fd_in_tag); |
| 886 | chr->fd_in_tag = 0; |
| 887 | } |
| 888 | } |
| 889 | |
Blue Swirl | 44ab9ed | 2013-03-09 09:56:04 +0000 | [diff] [blame] | 890 | #ifndef _WIN32 |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 891 | static GIOChannel *io_channel_from_fd(int fd) |
| 892 | { |
| 893 | GIOChannel *chan; |
| 894 | |
| 895 | if (fd == -1) { |
| 896 | return NULL; |
| 897 | } |
| 898 | |
| 899 | chan = g_io_channel_unix_new(fd); |
| 900 | |
| 901 | g_io_channel_set_encoding(chan, NULL, NULL); |
| 902 | g_io_channel_set_buffered(chan, FALSE); |
| 903 | |
| 904 | return chan; |
| 905 | } |
Blue Swirl | 44ab9ed | 2013-03-09 09:56:04 +0000 | [diff] [blame] | 906 | #endif |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 907 | |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 908 | static GIOChannel *io_channel_from_socket(int fd) |
| 909 | { |
| 910 | GIOChannel *chan; |
| 911 | |
| 912 | if (fd == -1) { |
| 913 | return NULL; |
| 914 | } |
| 915 | |
| 916 | #ifdef _WIN32 |
| 917 | chan = g_io_channel_win32_new_socket(fd); |
| 918 | #else |
| 919 | chan = g_io_channel_unix_new(fd); |
| 920 | #endif |
| 921 | |
| 922 | g_io_channel_set_encoding(chan, NULL, NULL); |
| 923 | g_io_channel_set_buffered(chan, FALSE); |
| 924 | |
| 925 | return chan; |
| 926 | } |
| 927 | |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 928 | static int io_channel_send(GIOChannel *fd, const void *buf, size_t len) |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 929 | { |
Laszlo Ersek | ac8c26f | 2013-07-16 20:19:40 +0200 | [diff] [blame] | 930 | size_t offset = 0; |
| 931 | GIOStatus status = G_IO_STATUS_NORMAL; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 932 | |
Laszlo Ersek | ac8c26f | 2013-07-16 20:19:40 +0200 | [diff] [blame] | 933 | while (offset < len && status == G_IO_STATUS_NORMAL) { |
| 934 | gsize bytes_written = 0; |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 935 | |
| 936 | status = g_io_channel_write_chars(fd, buf + offset, len - offset, |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 937 | &bytes_written, NULL); |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 938 | offset += bytes_written; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 939 | } |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 940 | |
Laszlo Ersek | ac8c26f | 2013-07-16 20:19:40 +0200 | [diff] [blame] | 941 | if (offset > 0) { |
| 942 | return offset; |
| 943 | } |
| 944 | switch (status) { |
| 945 | case G_IO_STATUS_NORMAL: |
| 946 | g_assert(len == 0); |
| 947 | return 0; |
| 948 | case G_IO_STATUS_AGAIN: |
| 949 | errno = EAGAIN; |
| 950 | return -1; |
| 951 | default: |
| 952 | break; |
| 953 | } |
| 954 | errno = EINVAL; |
| 955 | return -1; |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 956 | } |
Anthony Liguori | 96c6384 | 2013-03-05 23:21:18 +0530 | [diff] [blame] | 957 | |
Blue Swirl | 44ab9ed | 2013-03-09 09:56:04 +0000 | [diff] [blame] | 958 | #ifndef _WIN32 |
| 959 | |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 960 | typedef struct FDCharDriver { |
| 961 | CharDriverState *chr; |
| 962 | GIOChannel *fd_in, *fd_out; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 963 | int max_size; |
| 964 | } FDCharDriver; |
| 965 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 966 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 967 | static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 968 | { |
| 969 | FDCharDriver *s = chr->opaque; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 970 | |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 971 | return io_channel_send(s->fd_out, buf, len); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 972 | } |
| 973 | |
| 974 | static gboolean fd_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
| 975 | { |
| 976 | CharDriverState *chr = opaque; |
| 977 | FDCharDriver *s = chr->opaque; |
| 978 | int len; |
| 979 | uint8_t buf[READ_BUF_LEN]; |
| 980 | GIOStatus status; |
| 981 | gsize bytes_read; |
| 982 | |
| 983 | len = sizeof(buf); |
| 984 | if (len > s->max_size) { |
| 985 | len = s->max_size; |
| 986 | } |
| 987 | if (len == 0) { |
Paolo Bonzini | cdbf6e1 | 2013-04-19 17:32:08 +0200 | [diff] [blame] | 988 | return TRUE; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 989 | } |
| 990 | |
| 991 | status = g_io_channel_read_chars(chan, (gchar *)buf, |
| 992 | len, &bytes_read, NULL); |
| 993 | if (status == G_IO_STATUS_EOF) { |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 994 | remove_fd_in_watch(chr); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 995 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
| 996 | return FALSE; |
| 997 | } |
| 998 | if (status == G_IO_STATUS_NORMAL) { |
| 999 | qemu_chr_be_write(chr, buf, bytes_read); |
| 1000 | } |
| 1001 | |
| 1002 | return TRUE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1003 | } |
| 1004 | |
| 1005 | static int fd_chr_read_poll(void *opaque) |
| 1006 | { |
| 1007 | CharDriverState *chr = opaque; |
| 1008 | FDCharDriver *s = chr->opaque; |
| 1009 | |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 1010 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1011 | return s->max_size; |
| 1012 | } |
| 1013 | |
Anthony Liguori | 23673ca | 2013-03-05 23:21:23 +0530 | [diff] [blame] | 1014 | static GSource *fd_chr_add_watch(CharDriverState *chr, GIOCondition cond) |
| 1015 | { |
| 1016 | FDCharDriver *s = chr->opaque; |
| 1017 | return g_io_create_watch(s->fd_out, cond); |
| 1018 | } |
| 1019 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1020 | static void fd_chr_update_read_handler(CharDriverState *chr) |
| 1021 | { |
| 1022 | FDCharDriver *s = chr->opaque; |
| 1023 | |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 1024 | remove_fd_in_watch(chr); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1025 | if (s->fd_in) { |
Amit Shah | 7ba9add | 2013-08-28 15:18:29 +0530 | [diff] [blame] | 1026 | chr->fd_in_tag = io_add_watch_poll(s->fd_in, fd_chr_read_poll, |
| 1027 | fd_chr_read, chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | static void fd_chr_close(struct CharDriverState *chr) |
| 1032 | { |
| 1033 | FDCharDriver *s = chr->opaque; |
| 1034 | |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 1035 | remove_fd_in_watch(chr); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1036 | if (s->fd_in) { |
| 1037 | g_io_channel_unref(s->fd_in); |
| 1038 | } |
| 1039 | if (s->fd_out) { |
| 1040 | g_io_channel_unref(s->fd_out); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1041 | } |
| 1042 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1043 | g_free(s); |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 1044 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1045 | } |
| 1046 | |
| 1047 | /* open a character device to a unix fd */ |
| 1048 | static CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out) |
| 1049 | { |
| 1050 | CharDriverState *chr; |
| 1051 | FDCharDriver *s; |
| 1052 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 1053 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 1054 | s = g_new0(FDCharDriver, 1); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1055 | s->fd_in = io_channel_from_fd(fd_in); |
| 1056 | s->fd_out = io_channel_from_fd(fd_out); |
Gonglei | 4ff12bd | 2014-08-11 17:34:20 +0800 | [diff] [blame] | 1057 | qemu_set_nonblock(fd_out); |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1058 | s->chr = chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1059 | chr->opaque = s; |
Anthony Liguori | 23673ca | 2013-03-05 23:21:23 +0530 | [diff] [blame] | 1060 | chr->chr_add_watch = fd_chr_add_watch; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1061 | chr->chr_write = fd_chr_write; |
| 1062 | chr->chr_update_read_handler = fd_chr_update_read_handler; |
| 1063 | chr->chr_close = fd_chr_close; |
| 1064 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1065 | return chr; |
| 1066 | } |
| 1067 | |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 1068 | static CharDriverState *qemu_chr_open_pipe(const char *id, |
| 1069 | ChardevBackend *backend, |
| 1070 | ChardevReturn *ret, |
| 1071 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1072 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 1073 | ChardevHostdev *opts = backend->u.pipe; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1074 | int fd_in, fd_out; |
Corey Minyard | 9f78116 | 2014-10-02 11:17:33 -0500 | [diff] [blame] | 1075 | char filename_in[CHR_MAX_FILENAME_SIZE]; |
| 1076 | char filename_out[CHR_MAX_FILENAME_SIZE]; |
Gerd Hoffmann | 548cbb3 | 2013-02-25 11:50:55 +0100 | [diff] [blame] | 1077 | const char *filename = opts->device; |
Gerd Hoffmann | 7d31544 | 2009-09-10 10:58:36 +0200 | [diff] [blame] | 1078 | |
Corey Minyard | 9f78116 | 2014-10-02 11:17:33 -0500 | [diff] [blame] | 1079 | snprintf(filename_in, CHR_MAX_FILENAME_SIZE, "%s.in", filename); |
| 1080 | snprintf(filename_out, CHR_MAX_FILENAME_SIZE, "%s.out", filename); |
Kevin Wolf | 40ff6d7 | 2009-12-02 12:24:42 +0100 | [diff] [blame] | 1081 | TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); |
| 1082 | TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1083 | if (fd_in < 0 || fd_out < 0) { |
| 1084 | if (fd_in >= 0) |
| 1085 | close(fd_in); |
| 1086 | if (fd_out >= 0) |
| 1087 | close(fd_out); |
Markus Armbruster | b181e04 | 2012-02-07 15:09:09 +0100 | [diff] [blame] | 1088 | TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); |
Markus Armbruster | a89dd6c | 2012-02-07 15:09:10 +0100 | [diff] [blame] | 1089 | if (fd_in < 0) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 1090 | error_setg_file_open(errp, errno, filename); |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1091 | return NULL; |
Markus Armbruster | a89dd6c | 2012-02-07 15:09:10 +0100 | [diff] [blame] | 1092 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1093 | } |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1094 | return qemu_chr_open_fd(fd_in, fd_out); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1095 | } |
| 1096 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1097 | /* init terminal so that we can grab keys */ |
| 1098 | static struct termios oldtty; |
| 1099 | static int old_fd0_flags; |
Li Liu | c88930a | 2014-09-09 19:19:48 +0800 | [diff] [blame] | 1100 | static bool stdio_in_use; |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1101 | static bool stdio_allow_signal; |
Gal Hammer | e76d442 | 2015-01-07 10:38:35 +0200 | [diff] [blame] | 1102 | static bool stdio_echo_state; |
| 1103 | |
| 1104 | static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1105 | |
| 1106 | static void term_exit(void) |
| 1107 | { |
| 1108 | tcsetattr (0, TCSANOW, &oldtty); |
| 1109 | fcntl(0, F_SETFL, old_fd0_flags); |
| 1110 | } |
| 1111 | |
Gal Hammer | e76d442 | 2015-01-07 10:38:35 +0200 | [diff] [blame] | 1112 | static void term_stdio_handler(int sig) |
| 1113 | { |
| 1114 | /* restore echo after resume from suspend. */ |
| 1115 | qemu_chr_set_echo_stdio(NULL, stdio_echo_state); |
| 1116 | } |
| 1117 | |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1118 | static void qemu_chr_set_echo_stdio(CharDriverState *chr, bool echo) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1119 | { |
| 1120 | struct termios tty; |
| 1121 | |
Gal Hammer | e76d442 | 2015-01-07 10:38:35 +0200 | [diff] [blame] | 1122 | stdio_echo_state = echo; |
Paolo Bonzini | 0369364 | 2010-12-23 13:42:49 +0100 | [diff] [blame] | 1123 | tty = oldtty; |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1124 | if (!echo) { |
| 1125 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1126 | |INLCR|IGNCR|ICRNL|IXON); |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1127 | tty.c_oflag |= OPOST; |
| 1128 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 1129 | tty.c_cflag &= ~(CSIZE|PARENB); |
| 1130 | tty.c_cflag |= CS8; |
| 1131 | tty.c_cc[VMIN] = 1; |
| 1132 | tty.c_cc[VTIME] = 0; |
| 1133 | } |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1134 | if (!stdio_allow_signal) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1135 | tty.c_lflag &= ~ISIG; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1136 | |
| 1137 | tcsetattr (0, TCSANOW, &tty); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1138 | } |
| 1139 | |
| 1140 | static void qemu_chr_close_stdio(struct CharDriverState *chr) |
| 1141 | { |
| 1142 | term_exit(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1143 | fd_chr_close(chr); |
| 1144 | } |
| 1145 | |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 1146 | static CharDriverState *qemu_chr_open_stdio(const char *id, |
| 1147 | ChardevBackend *backend, |
| 1148 | ChardevReturn *ret, |
| 1149 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1150 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 1151 | ChardevStdio *opts = backend->u.stdio; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1152 | CharDriverState *chr; |
Gal Hammer | e76d442 | 2015-01-07 10:38:35 +0200 | [diff] [blame] | 1153 | struct sigaction act; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1154 | |
Michael Tokarev | ab51b1d | 2012-12-30 12:48:14 +0400 | [diff] [blame] | 1155 | if (is_daemonized()) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 1156 | error_setg(errp, "cannot use stdio with -daemonize"); |
Michael Tokarev | ab51b1d | 2012-12-30 12:48:14 +0400 | [diff] [blame] | 1157 | return NULL; |
| 1158 | } |
Li Liu | c88930a | 2014-09-09 19:19:48 +0800 | [diff] [blame] | 1159 | |
| 1160 | if (stdio_in_use) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 1161 | error_setg(errp, "cannot use stdio by multiple character devices"); |
| 1162 | return NULL; |
Li Liu | c88930a | 2014-09-09 19:19:48 +0800 | [diff] [blame] | 1163 | } |
| 1164 | |
| 1165 | stdio_in_use = true; |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 1166 | old_fd0_flags = fcntl(0, F_GETFL); |
Li Liu | c88930a | 2014-09-09 19:19:48 +0800 | [diff] [blame] | 1167 | tcgetattr(0, &oldtty); |
Gonglei | 4ff12bd | 2014-08-11 17:34:20 +0800 | [diff] [blame] | 1168 | qemu_set_nonblock(0); |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 1169 | atexit(term_exit); |
Paolo Bonzini | 0369364 | 2010-12-23 13:42:49 +0100 | [diff] [blame] | 1170 | |
Gal Hammer | e76d442 | 2015-01-07 10:38:35 +0200 | [diff] [blame] | 1171 | memset(&act, 0, sizeof(act)); |
| 1172 | act.sa_handler = term_stdio_handler; |
| 1173 | sigaction(SIGCONT, &act, NULL); |
| 1174 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1175 | chr = qemu_chr_open_fd(0, 1); |
| 1176 | chr->chr_close = qemu_chr_close_stdio; |
Paolo Bonzini | bb00251 | 2010-12-23 13:42:50 +0100 | [diff] [blame] | 1177 | chr->chr_set_echo = qemu_chr_set_echo_stdio; |
Gerd Hoffmann | 7c35803 | 2013-02-21 12:34:58 +0100 | [diff] [blame] | 1178 | if (opts->has_signal) { |
| 1179 | stdio_allow_signal = opts->signal; |
| 1180 | } |
Anthony Liguori | 15f3151 | 2011-08-15 11:17:35 -0500 | [diff] [blame] | 1181 | qemu_chr_fe_set_echo(chr, false); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1182 | |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1183 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1184 | } |
| 1185 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1186 | #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \ |
Aurelien Jarno | a167ba5 | 2009-11-29 18:00:41 +0100 | [diff] [blame] | 1187 | || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \ |
| 1188 | || defined(__GLIBC__) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1189 | |
Paolo Bonzini | d809ab9 | 2015-10-12 09:46:23 +0200 | [diff] [blame] | 1190 | #define HAVE_CHARDEV_SERIAL 1 |
| 1191 | #define HAVE_CHARDEV_PTY 1 |
Gerd Hoffmann | e551498 | 2012-12-19 16:35:42 +0100 | [diff] [blame] | 1192 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1193 | typedef struct { |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1194 | GIOChannel *fd; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1195 | int read_bytes; |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1196 | |
| 1197 | /* Protected by the CharDriverState chr_write_lock. */ |
| 1198 | int connected; |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1199 | guint timer_tag; |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1200 | guint open_tag; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1201 | } PtyCharDriver; |
| 1202 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1203 | static void pty_chr_update_read_handler_locked(CharDriverState *chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1204 | static void pty_chr_state(CharDriverState *chr, int connected); |
| 1205 | |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1206 | static gboolean pty_chr_timer(gpointer opaque) |
| 1207 | { |
| 1208 | struct CharDriverState *chr = opaque; |
| 1209 | PtyCharDriver *s = chr->opaque; |
| 1210 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1211 | qemu_mutex_lock(&chr->chr_write_lock); |
Hans de Goede | 79f2007 | 2013-04-25 13:53:02 +0200 | [diff] [blame] | 1212 | s->timer_tag = 0; |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1213 | s->open_tag = 0; |
Gerd Hoffmann | b0d768c | 2013-08-22 11:43:58 +0200 | [diff] [blame] | 1214 | if (!s->connected) { |
| 1215 | /* Next poll ... */ |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1216 | pty_chr_update_read_handler_locked(chr); |
Gerd Hoffmann | b0d768c | 2013-08-22 11:43:58 +0200 | [diff] [blame] | 1217 | } |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1218 | qemu_mutex_unlock(&chr->chr_write_lock); |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1219 | return FALSE; |
| 1220 | } |
| 1221 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1222 | /* Called with chr_write_lock held. */ |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1223 | static void pty_chr_rearm_timer(CharDriverState *chr, int ms) |
| 1224 | { |
| 1225 | PtyCharDriver *s = chr->opaque; |
| 1226 | |
| 1227 | if (s->timer_tag) { |
| 1228 | g_source_remove(s->timer_tag); |
| 1229 | s->timer_tag = 0; |
| 1230 | } |
| 1231 | |
| 1232 | if (ms == 1000) { |
| 1233 | s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr); |
| 1234 | } else { |
| 1235 | s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr); |
| 1236 | } |
| 1237 | } |
| 1238 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1239 | /* Called with chr_write_lock held. */ |
| 1240 | static void pty_chr_update_read_handler_locked(CharDriverState *chr) |
Paolo Bonzini | 1bb7fe7 | 2014-06-18 08:43:57 +0200 | [diff] [blame] | 1241 | { |
| 1242 | PtyCharDriver *s = chr->opaque; |
| 1243 | GPollFD pfd; |
| 1244 | |
| 1245 | pfd.fd = g_io_channel_unix_get_fd(s->fd); |
| 1246 | pfd.events = G_IO_OUT; |
| 1247 | pfd.revents = 0; |
| 1248 | g_poll(&pfd, 1, 0); |
| 1249 | if (pfd.revents & G_IO_HUP) { |
| 1250 | pty_chr_state(chr, 0); |
| 1251 | } else { |
| 1252 | pty_chr_state(chr, 1); |
| 1253 | } |
| 1254 | } |
| 1255 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1256 | static void pty_chr_update_read_handler(CharDriverState *chr) |
| 1257 | { |
| 1258 | qemu_mutex_lock(&chr->chr_write_lock); |
| 1259 | pty_chr_update_read_handler_locked(chr); |
| 1260 | qemu_mutex_unlock(&chr->chr_write_lock); |
| 1261 | } |
| 1262 | |
| 1263 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1264 | static int pty_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 1265 | { |
| 1266 | PtyCharDriver *s = chr->opaque; |
| 1267 | |
| 1268 | if (!s->connected) { |
| 1269 | /* guest sends data, check for (re-)connect */ |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1270 | pty_chr_update_read_handler_locked(chr); |
Sebastian Tanase | cf7330c | 2014-07-28 13:39:14 +0200 | [diff] [blame] | 1271 | if (!s->connected) { |
| 1272 | return 0; |
| 1273 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1274 | } |
Anthony Liguori | 684a096 | 2013-03-29 11:39:50 -0500 | [diff] [blame] | 1275 | return io_channel_send(s->fd, buf, len); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1276 | } |
| 1277 | |
Anthony Liguori | e6a87ed | 2013-03-05 23:21:24 +0530 | [diff] [blame] | 1278 | static GSource *pty_chr_add_watch(CharDriverState *chr, GIOCondition cond) |
| 1279 | { |
| 1280 | PtyCharDriver *s = chr->opaque; |
Paolo Bonzini | 62c339c | 2014-07-24 16:08:04 +0200 | [diff] [blame] | 1281 | if (!s->connected) { |
| 1282 | return NULL; |
| 1283 | } |
Anthony Liguori | e6a87ed | 2013-03-05 23:21:24 +0530 | [diff] [blame] | 1284 | return g_io_create_watch(s->fd, cond); |
| 1285 | } |
| 1286 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1287 | static int pty_chr_read_poll(void *opaque) |
| 1288 | { |
| 1289 | CharDriverState *chr = opaque; |
| 1290 | PtyCharDriver *s = chr->opaque; |
| 1291 | |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 1292 | s->read_bytes = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1293 | return s->read_bytes; |
| 1294 | } |
| 1295 | |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1296 | static gboolean pty_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1297 | { |
| 1298 | CharDriverState *chr = opaque; |
| 1299 | PtyCharDriver *s = chr->opaque; |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1300 | gsize size, len; |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 1301 | uint8_t buf[READ_BUF_LEN]; |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1302 | GIOStatus status; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1303 | |
| 1304 | len = sizeof(buf); |
| 1305 | if (len > s->read_bytes) |
| 1306 | len = s->read_bytes; |
Paolo Bonzini | cdbf6e1 | 2013-04-19 17:32:08 +0200 | [diff] [blame] | 1307 | if (len == 0) { |
| 1308 | return TRUE; |
| 1309 | } |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1310 | status = g_io_channel_read_chars(s->fd, (gchar *)buf, len, &size, NULL); |
| 1311 | if (status != G_IO_STATUS_NORMAL) { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1312 | pty_chr_state(chr, 0); |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1313 | return FALSE; |
| 1314 | } else { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1315 | pty_chr_state(chr, 1); |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 1316 | qemu_chr_be_write(chr, buf, size); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1317 | } |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1318 | return TRUE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1319 | } |
| 1320 | |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1321 | static gboolean qemu_chr_be_generic_open_func(gpointer opaque) |
| 1322 | { |
| 1323 | CharDriverState *chr = opaque; |
| 1324 | PtyCharDriver *s = chr->opaque; |
| 1325 | |
| 1326 | s->open_tag = 0; |
| 1327 | qemu_chr_be_generic_open(chr); |
| 1328 | return FALSE; |
| 1329 | } |
| 1330 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1331 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1332 | static void pty_chr_state(CharDriverState *chr, int connected) |
| 1333 | { |
| 1334 | PtyCharDriver *s = chr->opaque; |
| 1335 | |
| 1336 | if (!connected) { |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1337 | if (s->open_tag) { |
| 1338 | g_source_remove(s->open_tag); |
| 1339 | s->open_tag = 0; |
| 1340 | } |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 1341 | remove_fd_in_watch(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1342 | s->connected = 0; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1343 | /* (re-)connect poll interval for idle guests: once per second. |
| 1344 | * We check more frequently in case the guests sends data to |
| 1345 | * the virtual device linked to our pty. */ |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1346 | pty_chr_rearm_timer(chr, 1000); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1347 | } else { |
Paolo Bonzini | 85a6769 | 2013-04-19 17:32:07 +0200 | [diff] [blame] | 1348 | if (s->timer_tag) { |
| 1349 | g_source_remove(s->timer_tag); |
| 1350 | s->timer_tag = 0; |
| 1351 | } |
| 1352 | if (!s->connected) { |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1353 | g_assert(s->open_tag == 0); |
Paolo Bonzini | 85a6769 | 2013-04-19 17:32:07 +0200 | [diff] [blame] | 1354 | s->connected = 1; |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1355 | s->open_tag = g_idle_add(qemu_chr_be_generic_open_func, chr); |
Gal Hammer | ac1b84d | 2014-02-25 12:12:35 +0200 | [diff] [blame] | 1356 | } |
| 1357 | if (!chr->fd_in_tag) { |
Amit Shah | 7ba9add | 2013-08-28 15:18:29 +0530 | [diff] [blame] | 1358 | chr->fd_in_tag = io_add_watch_poll(s->fd, pty_chr_read_poll, |
| 1359 | pty_chr_read, chr); |
Paolo Bonzini | 85a6769 | 2013-04-19 17:32:07 +0200 | [diff] [blame] | 1360 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1361 | } |
| 1362 | } |
| 1363 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1364 | static void pty_chr_close(struct CharDriverState *chr) |
| 1365 | { |
| 1366 | PtyCharDriver *s = chr->opaque; |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1367 | int fd; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1368 | |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1369 | qemu_mutex_lock(&chr->chr_write_lock); |
| 1370 | pty_chr_state(chr, 0); |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1371 | fd = g_io_channel_unix_get_fd(s->fd); |
| 1372 | g_io_channel_unref(s->fd); |
| 1373 | close(fd); |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1374 | if (s->timer_tag) { |
| 1375 | g_source_remove(s->timer_tag); |
Paolo Bonzini | 910b636 | 2013-04-19 17:32:06 +0200 | [diff] [blame] | 1376 | s->timer_tag = 0; |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1377 | } |
Paolo Bonzini | 7b3621f | 2014-07-11 12:11:38 +0200 | [diff] [blame] | 1378 | qemu_mutex_unlock(&chr->chr_write_lock); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1379 | g_free(s); |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 1380 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1381 | } |
| 1382 | |
Gerd Hoffmann | e68c595 | 2013-02-25 10:16:46 +0100 | [diff] [blame] | 1383 | static CharDriverState *qemu_chr_open_pty(const char *id, |
Paolo Bonzini | c2e75a4 | 2015-09-29 15:23:42 +0200 | [diff] [blame] | 1384 | ChardevBackend *backend, |
| 1385 | ChardevReturn *ret, |
| 1386 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1387 | { |
| 1388 | CharDriverState *chr; |
| 1389 | PtyCharDriver *s; |
Gerd Hoffmann | e68c595 | 2013-02-25 10:16:46 +0100 | [diff] [blame] | 1390 | int master_fd, slave_fd; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1391 | char pty_name[PATH_MAX]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1392 | |
Michael Tokarev | 4efeabb | 2013-06-05 18:44:54 +0400 | [diff] [blame] | 1393 | master_fd = qemu_openpty_raw(&slave_fd, pty_name); |
| 1394 | if (master_fd < 0) { |
Paolo Bonzini | c2e75a4 | 2015-09-29 15:23:42 +0200 | [diff] [blame] | 1395 | error_setg_errno(errp, errno, "Failed to create PTY"); |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1396 | return NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1397 | } |
| 1398 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1399 | close(slave_fd); |
Don Slutz | fac6688 | 2014-12-22 10:04:00 -0500 | [diff] [blame] | 1400 | qemu_set_nonblock(master_fd); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1401 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 1402 | chr = qemu_chr_alloc(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1403 | |
Michael Tokarev | 4efeabb | 2013-06-05 18:44:54 +0400 | [diff] [blame] | 1404 | chr->filename = g_strdup_printf("pty:%s", pty_name); |
| 1405 | ret->pty = g_strdup(pty_name); |
Gerd Hoffmann | e68c595 | 2013-02-25 10:16:46 +0100 | [diff] [blame] | 1406 | ret->has_pty = true; |
Lei Li | 5865021 | 2012-12-21 12:26:38 +0800 | [diff] [blame] | 1407 | |
Gerd Hoffmann | e68c595 | 2013-02-25 10:16:46 +0100 | [diff] [blame] | 1408 | fprintf(stderr, "char device redirected to %s (label %s)\n", |
Michael Tokarev | 4efeabb | 2013-06-05 18:44:54 +0400 | [diff] [blame] | 1409 | pty_name, id); |
Markus Armbruster | a4e2604 | 2011-11-11 10:40:05 +0100 | [diff] [blame] | 1410 | |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 1411 | s = g_new0(PtyCharDriver, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1412 | chr->opaque = s; |
| 1413 | chr->chr_write = pty_chr_write; |
| 1414 | chr->chr_update_read_handler = pty_chr_update_read_handler; |
| 1415 | chr->chr_close = pty_chr_close; |
Anthony Liguori | e6a87ed | 2013-03-05 23:21:24 +0530 | [diff] [blame] | 1416 | chr->chr_add_watch = pty_chr_add_watch; |
Michael Roth | bd5c51e | 2013-06-07 15:19:53 -0500 | [diff] [blame] | 1417 | chr->explicit_be_open = true; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1418 | |
Anthony Liguori | 093d3a2 | 2013-03-05 23:21:20 +0530 | [diff] [blame] | 1419 | s->fd = io_channel_from_fd(master_fd); |
Anthony Liguori | 8aa33ca | 2013-03-05 23:21:26 +0530 | [diff] [blame] | 1420 | s->timer_tag = 0; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1421 | |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1422 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1423 | } |
| 1424 | |
| 1425 | static void tty_serial_init(int fd, int speed, |
| 1426 | int parity, int data_bits, int stop_bits) |
| 1427 | { |
| 1428 | struct termios tty; |
| 1429 | speed_t spd; |
| 1430 | |
| 1431 | #if 0 |
| 1432 | printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n", |
| 1433 | speed, parity, data_bits, stop_bits); |
| 1434 | #endif |
| 1435 | tcgetattr (fd, &tty); |
| 1436 | |
Stefan Weil | 45eea13 | 2009-10-26 16:10:10 +0100 | [diff] [blame] | 1437 | #define check_speed(val) if (speed <= val) { spd = B##val; break; } |
| 1438 | speed = speed * 10 / 11; |
| 1439 | do { |
| 1440 | check_speed(50); |
| 1441 | check_speed(75); |
| 1442 | check_speed(110); |
| 1443 | check_speed(134); |
| 1444 | check_speed(150); |
| 1445 | check_speed(200); |
| 1446 | check_speed(300); |
| 1447 | check_speed(600); |
| 1448 | check_speed(1200); |
| 1449 | check_speed(1800); |
| 1450 | check_speed(2400); |
| 1451 | check_speed(4800); |
| 1452 | check_speed(9600); |
| 1453 | check_speed(19200); |
| 1454 | check_speed(38400); |
| 1455 | /* Non-Posix values follow. They may be unsupported on some systems. */ |
| 1456 | check_speed(57600); |
| 1457 | check_speed(115200); |
| 1458 | #ifdef B230400 |
| 1459 | check_speed(230400); |
| 1460 | #endif |
| 1461 | #ifdef B460800 |
| 1462 | check_speed(460800); |
| 1463 | #endif |
| 1464 | #ifdef B500000 |
| 1465 | check_speed(500000); |
| 1466 | #endif |
| 1467 | #ifdef B576000 |
| 1468 | check_speed(576000); |
| 1469 | #endif |
| 1470 | #ifdef B921600 |
| 1471 | check_speed(921600); |
| 1472 | #endif |
| 1473 | #ifdef B1000000 |
| 1474 | check_speed(1000000); |
| 1475 | #endif |
| 1476 | #ifdef B1152000 |
| 1477 | check_speed(1152000); |
| 1478 | #endif |
| 1479 | #ifdef B1500000 |
| 1480 | check_speed(1500000); |
| 1481 | #endif |
| 1482 | #ifdef B2000000 |
| 1483 | check_speed(2000000); |
| 1484 | #endif |
| 1485 | #ifdef B2500000 |
| 1486 | check_speed(2500000); |
| 1487 | #endif |
| 1488 | #ifdef B3000000 |
| 1489 | check_speed(3000000); |
| 1490 | #endif |
| 1491 | #ifdef B3500000 |
| 1492 | check_speed(3500000); |
| 1493 | #endif |
| 1494 | #ifdef B4000000 |
| 1495 | check_speed(4000000); |
| 1496 | #endif |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1497 | spd = B115200; |
Stefan Weil | 45eea13 | 2009-10-26 16:10:10 +0100 | [diff] [blame] | 1498 | } while (0); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1499 | |
| 1500 | cfsetispeed(&tty, spd); |
| 1501 | cfsetospeed(&tty, spd); |
| 1502 | |
| 1503 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 1504 | |INLCR|IGNCR|ICRNL|IXON); |
| 1505 | tty.c_oflag |= OPOST; |
| 1506 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG); |
| 1507 | tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB); |
| 1508 | switch(data_bits) { |
| 1509 | default: |
| 1510 | case 8: |
| 1511 | tty.c_cflag |= CS8; |
| 1512 | break; |
| 1513 | case 7: |
| 1514 | tty.c_cflag |= CS7; |
| 1515 | break; |
| 1516 | case 6: |
| 1517 | tty.c_cflag |= CS6; |
| 1518 | break; |
| 1519 | case 5: |
| 1520 | tty.c_cflag |= CS5; |
| 1521 | break; |
| 1522 | } |
| 1523 | switch(parity) { |
| 1524 | default: |
| 1525 | case 'N': |
| 1526 | break; |
| 1527 | case 'E': |
| 1528 | tty.c_cflag |= PARENB; |
| 1529 | break; |
| 1530 | case 'O': |
| 1531 | tty.c_cflag |= PARENB | PARODD; |
| 1532 | break; |
| 1533 | } |
| 1534 | if (stop_bits == 2) |
| 1535 | tty.c_cflag |= CSTOPB; |
| 1536 | |
| 1537 | tcsetattr (fd, TCSANOW, &tty); |
| 1538 | } |
| 1539 | |
| 1540 | static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1541 | { |
| 1542 | FDCharDriver *s = chr->opaque; |
| 1543 | |
| 1544 | switch(cmd) { |
| 1545 | case CHR_IOCTL_SERIAL_SET_PARAMS: |
| 1546 | { |
| 1547 | QEMUSerialSetParams *ssp = arg; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1548 | tty_serial_init(g_io_channel_unix_get_fd(s->fd_in), |
| 1549 | ssp->speed, ssp->parity, |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1550 | ssp->data_bits, ssp->stop_bits); |
| 1551 | } |
| 1552 | break; |
| 1553 | case CHR_IOCTL_SERIAL_SET_BREAK: |
| 1554 | { |
| 1555 | int enable = *(int *)arg; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1556 | if (enable) { |
| 1557 | tcsendbreak(g_io_channel_unix_get_fd(s->fd_in), 1); |
| 1558 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1559 | } |
| 1560 | break; |
| 1561 | case CHR_IOCTL_SERIAL_GET_TIOCM: |
| 1562 | { |
| 1563 | int sarg = 0; |
| 1564 | int *targ = (int *)arg; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1565 | ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &sarg); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1566 | *targ = 0; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1567 | if (sarg & TIOCM_CTS) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1568 | *targ |= CHR_TIOCM_CTS; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1569 | if (sarg & TIOCM_CAR) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1570 | *targ |= CHR_TIOCM_CAR; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1571 | if (sarg & TIOCM_DSR) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1572 | *targ |= CHR_TIOCM_DSR; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1573 | if (sarg & TIOCM_RI) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1574 | *targ |= CHR_TIOCM_RI; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1575 | if (sarg & TIOCM_DTR) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1576 | *targ |= CHR_TIOCM_DTR; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1577 | if (sarg & TIOCM_RTS) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1578 | *targ |= CHR_TIOCM_RTS; |
| 1579 | } |
| 1580 | break; |
| 1581 | case CHR_IOCTL_SERIAL_SET_TIOCM: |
| 1582 | { |
| 1583 | int sarg = *(int *)arg; |
| 1584 | int targ = 0; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1585 | ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMGET, &targ); |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1586 | targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR |
| 1587 | | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS); |
| 1588 | if (sarg & CHR_TIOCM_CTS) |
| 1589 | targ |= TIOCM_CTS; |
| 1590 | if (sarg & CHR_TIOCM_CAR) |
| 1591 | targ |= TIOCM_CAR; |
| 1592 | if (sarg & CHR_TIOCM_DSR) |
| 1593 | targ |= TIOCM_DSR; |
| 1594 | if (sarg & CHR_TIOCM_RI) |
| 1595 | targ |= TIOCM_RI; |
| 1596 | if (sarg & CHR_TIOCM_DTR) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1597 | targ |= TIOCM_DTR; |
aurel32 | b4abdfa | 2009-02-08 14:46:17 +0000 | [diff] [blame] | 1598 | if (sarg & CHR_TIOCM_RTS) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1599 | targ |= TIOCM_RTS; |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1600 | ioctl(g_io_channel_unix_get_fd(s->fd_in), TIOCMSET, &targ); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1601 | } |
| 1602 | break; |
| 1603 | default: |
| 1604 | return -ENOTSUP; |
| 1605 | } |
| 1606 | return 0; |
| 1607 | } |
| 1608 | |
David Ahern | 4266a13 | 2010-02-10 18:27:17 -0700 | [diff] [blame] | 1609 | static void qemu_chr_close_tty(CharDriverState *chr) |
| 1610 | { |
| 1611 | FDCharDriver *s = chr->opaque; |
| 1612 | int fd = -1; |
| 1613 | |
| 1614 | if (s) { |
Anthony Liguori | a29753f | 2013-03-05 23:21:19 +0530 | [diff] [blame] | 1615 | fd = g_io_channel_unix_get_fd(s->fd_in); |
David Ahern | 4266a13 | 2010-02-10 18:27:17 -0700 | [diff] [blame] | 1616 | } |
| 1617 | |
| 1618 | fd_chr_close(chr); |
| 1619 | |
| 1620 | if (fd >= 0) { |
| 1621 | close(fd); |
| 1622 | } |
| 1623 | } |
| 1624 | |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 1625 | static CharDriverState *qemu_chr_open_tty_fd(int fd) |
| 1626 | { |
| 1627 | CharDriverState *chr; |
| 1628 | |
| 1629 | tty_serial_init(fd, 115200, 'N', 8, 1); |
| 1630 | chr = qemu_chr_open_fd(fd, fd); |
| 1631 | chr->chr_ioctl = tty_serial_ioctl; |
| 1632 | chr->chr_close = qemu_chr_close_tty; |
| 1633 | return chr; |
| 1634 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1635 | #endif /* __linux__ || __sun__ */ |
| 1636 | |
| 1637 | #if defined(__linux__) |
Gerd Hoffmann | e551498 | 2012-12-19 16:35:42 +0100 | [diff] [blame] | 1638 | |
| 1639 | #define HAVE_CHARDEV_PARPORT 1 |
| 1640 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1641 | typedef struct { |
| 1642 | int fd; |
| 1643 | int mode; |
| 1644 | } ParallelCharDriver; |
| 1645 | |
| 1646 | static int pp_hw_mode(ParallelCharDriver *s, uint16_t mode) |
| 1647 | { |
| 1648 | if (s->mode != mode) { |
| 1649 | int m = mode; |
| 1650 | if (ioctl(s->fd, PPSETMODE, &m) < 0) |
| 1651 | return 0; |
| 1652 | s->mode = mode; |
| 1653 | } |
| 1654 | return 1; |
| 1655 | } |
| 1656 | |
| 1657 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1658 | { |
| 1659 | ParallelCharDriver *drv = chr->opaque; |
| 1660 | int fd = drv->fd; |
| 1661 | uint8_t b; |
| 1662 | |
| 1663 | switch(cmd) { |
| 1664 | case CHR_IOCTL_PP_READ_DATA: |
| 1665 | if (ioctl(fd, PPRDATA, &b) < 0) |
| 1666 | return -ENOTSUP; |
| 1667 | *(uint8_t *)arg = b; |
| 1668 | break; |
| 1669 | case CHR_IOCTL_PP_WRITE_DATA: |
| 1670 | b = *(uint8_t *)arg; |
| 1671 | if (ioctl(fd, PPWDATA, &b) < 0) |
| 1672 | return -ENOTSUP; |
| 1673 | break; |
| 1674 | case CHR_IOCTL_PP_READ_CONTROL: |
| 1675 | if (ioctl(fd, PPRCONTROL, &b) < 0) |
| 1676 | return -ENOTSUP; |
| 1677 | /* Linux gives only the lowest bits, and no way to know data |
| 1678 | direction! For better compatibility set the fixed upper |
| 1679 | bits. */ |
| 1680 | *(uint8_t *)arg = b | 0xc0; |
| 1681 | break; |
| 1682 | case CHR_IOCTL_PP_WRITE_CONTROL: |
| 1683 | b = *(uint8_t *)arg; |
| 1684 | if (ioctl(fd, PPWCONTROL, &b) < 0) |
| 1685 | return -ENOTSUP; |
| 1686 | break; |
| 1687 | case CHR_IOCTL_PP_READ_STATUS: |
| 1688 | if (ioctl(fd, PPRSTATUS, &b) < 0) |
| 1689 | return -ENOTSUP; |
| 1690 | *(uint8_t *)arg = b; |
| 1691 | break; |
| 1692 | case CHR_IOCTL_PP_DATA_DIR: |
| 1693 | if (ioctl(fd, PPDATADIR, (int *)arg) < 0) |
| 1694 | return -ENOTSUP; |
| 1695 | break; |
| 1696 | case CHR_IOCTL_PP_EPP_READ_ADDR: |
| 1697 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { |
| 1698 | struct ParallelIOArg *parg = arg; |
| 1699 | int n = read(fd, parg->buffer, parg->count); |
| 1700 | if (n != parg->count) { |
| 1701 | return -EIO; |
| 1702 | } |
| 1703 | } |
| 1704 | break; |
| 1705 | case CHR_IOCTL_PP_EPP_READ: |
| 1706 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { |
| 1707 | struct ParallelIOArg *parg = arg; |
| 1708 | int n = read(fd, parg->buffer, parg->count); |
| 1709 | if (n != parg->count) { |
| 1710 | return -EIO; |
| 1711 | } |
| 1712 | } |
| 1713 | break; |
| 1714 | case CHR_IOCTL_PP_EPP_WRITE_ADDR: |
| 1715 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) { |
| 1716 | struct ParallelIOArg *parg = arg; |
| 1717 | int n = write(fd, parg->buffer, parg->count); |
| 1718 | if (n != parg->count) { |
| 1719 | return -EIO; |
| 1720 | } |
| 1721 | } |
| 1722 | break; |
| 1723 | case CHR_IOCTL_PP_EPP_WRITE: |
| 1724 | if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) { |
| 1725 | struct ParallelIOArg *parg = arg; |
| 1726 | int n = write(fd, parg->buffer, parg->count); |
| 1727 | if (n != parg->count) { |
| 1728 | return -EIO; |
| 1729 | } |
| 1730 | } |
| 1731 | break; |
| 1732 | default: |
| 1733 | return -ENOTSUP; |
| 1734 | } |
| 1735 | return 0; |
| 1736 | } |
| 1737 | |
| 1738 | static void pp_close(CharDriverState *chr) |
| 1739 | { |
| 1740 | ParallelCharDriver *drv = chr->opaque; |
| 1741 | int fd = drv->fd; |
| 1742 | |
| 1743 | pp_hw_mode(drv, IEEE1284_MODE_COMPAT); |
| 1744 | ioctl(fd, PPRELEASE); |
| 1745 | close(fd); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1746 | g_free(drv); |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 1747 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1748 | } |
| 1749 | |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 1750 | static CharDriverState *qemu_chr_open_pp_fd(int fd, Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1751 | { |
| 1752 | CharDriverState *chr; |
| 1753 | ParallelCharDriver *drv; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1754 | |
| 1755 | if (ioctl(fd, PPCLAIM) < 0) { |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 1756 | error_setg_errno(errp, errno, "not a parallel port"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1757 | close(fd); |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1758 | return NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1759 | } |
| 1760 | |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 1761 | drv = g_new0(ParallelCharDriver, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1762 | drv->fd = fd; |
| 1763 | drv->mode = IEEE1284_MODE_COMPAT; |
| 1764 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 1765 | chr = qemu_chr_alloc(); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1766 | chr->chr_write = null_chr_write; |
| 1767 | chr->chr_ioctl = pp_ioctl; |
| 1768 | chr->chr_close = pp_close; |
| 1769 | chr->opaque = drv; |
| 1770 | |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1771 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1772 | } |
| 1773 | #endif /* __linux__ */ |
| 1774 | |
Aurelien Jarno | a167ba5 | 2009-11-29 18:00:41 +0100 | [diff] [blame] | 1775 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) |
Gerd Hoffmann | e551498 | 2012-12-19 16:35:42 +0100 | [diff] [blame] | 1776 | |
| 1777 | #define HAVE_CHARDEV_PARPORT 1 |
| 1778 | |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1779 | static int pp_ioctl(CharDriverState *chr, int cmd, void *arg) |
| 1780 | { |
Stefan Weil | e0efb99 | 2011-02-23 19:09:16 +0100 | [diff] [blame] | 1781 | int fd = (int)(intptr_t)chr->opaque; |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1782 | uint8_t b; |
| 1783 | |
| 1784 | switch(cmd) { |
| 1785 | case CHR_IOCTL_PP_READ_DATA: |
| 1786 | if (ioctl(fd, PPIGDATA, &b) < 0) |
| 1787 | return -ENOTSUP; |
| 1788 | *(uint8_t *)arg = b; |
| 1789 | break; |
| 1790 | case CHR_IOCTL_PP_WRITE_DATA: |
| 1791 | b = *(uint8_t *)arg; |
| 1792 | if (ioctl(fd, PPISDATA, &b) < 0) |
| 1793 | return -ENOTSUP; |
| 1794 | break; |
| 1795 | case CHR_IOCTL_PP_READ_CONTROL: |
| 1796 | if (ioctl(fd, PPIGCTRL, &b) < 0) |
| 1797 | return -ENOTSUP; |
| 1798 | *(uint8_t *)arg = b; |
| 1799 | break; |
| 1800 | case CHR_IOCTL_PP_WRITE_CONTROL: |
| 1801 | b = *(uint8_t *)arg; |
| 1802 | if (ioctl(fd, PPISCTRL, &b) < 0) |
| 1803 | return -ENOTSUP; |
| 1804 | break; |
| 1805 | case CHR_IOCTL_PP_READ_STATUS: |
| 1806 | if (ioctl(fd, PPIGSTATUS, &b) < 0) |
| 1807 | return -ENOTSUP; |
| 1808 | *(uint8_t *)arg = b; |
| 1809 | break; |
| 1810 | default: |
| 1811 | return -ENOTSUP; |
| 1812 | } |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 1816 | static CharDriverState *qemu_chr_open_pp_fd(int fd, Error **errp) |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1817 | { |
| 1818 | CharDriverState *chr; |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1819 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 1820 | chr = qemu_chr_alloc(); |
Stefan Weil | e0efb99 | 2011-02-23 19:09:16 +0100 | [diff] [blame] | 1821 | chr->opaque = (void *)(intptr_t)fd; |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1822 | chr->chr_write = null_chr_write; |
| 1823 | chr->chr_ioctl = pp_ioctl; |
Michael Roth | bd5c51e | 2013-06-07 15:19:53 -0500 | [diff] [blame] | 1824 | chr->explicit_be_open = true; |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 1825 | return chr; |
blueswir1 | 6972f93 | 2008-11-22 20:49:12 +0000 | [diff] [blame] | 1826 | } |
| 1827 | #endif |
| 1828 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1829 | #else /* _WIN32 */ |
| 1830 | |
Paolo Bonzini | d809ab9 | 2015-10-12 09:46:23 +0200 | [diff] [blame] | 1831 | #define HAVE_CHARDEV_SERIAL 1 |
| 1832 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1833 | typedef struct { |
| 1834 | int max_size; |
| 1835 | HANDLE hcom, hrecv, hsend; |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1836 | OVERLAPPED orecv; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1837 | BOOL fpipe; |
| 1838 | DWORD len; |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1839 | |
| 1840 | /* Protected by the CharDriverState chr_write_lock. */ |
| 1841 | OVERLAPPED osend; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1842 | } WinCharState; |
| 1843 | |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 1844 | typedef struct { |
| 1845 | HANDLE hStdIn; |
| 1846 | HANDLE hInputReadyEvent; |
| 1847 | HANDLE hInputDoneEvent; |
| 1848 | HANDLE hInputThread; |
| 1849 | uint8_t win_stdio_buf; |
| 1850 | } WinStdioCharState; |
| 1851 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1852 | #define NSENDBUF 2048 |
| 1853 | #define NRECVBUF 2048 |
| 1854 | #define MAXCONNECT 1 |
| 1855 | #define NTIMEOUT 5000 |
| 1856 | |
| 1857 | static int win_chr_poll(void *opaque); |
| 1858 | static int win_chr_pipe_poll(void *opaque); |
| 1859 | |
| 1860 | static void win_chr_close(CharDriverState *chr) |
| 1861 | { |
| 1862 | WinCharState *s = chr->opaque; |
| 1863 | |
| 1864 | if (s->hsend) { |
| 1865 | CloseHandle(s->hsend); |
| 1866 | s->hsend = NULL; |
| 1867 | } |
| 1868 | if (s->hrecv) { |
| 1869 | CloseHandle(s->hrecv); |
| 1870 | s->hrecv = NULL; |
| 1871 | } |
| 1872 | if (s->hcom) { |
| 1873 | CloseHandle(s->hcom); |
| 1874 | s->hcom = NULL; |
| 1875 | } |
| 1876 | if (s->fpipe) |
| 1877 | qemu_del_polling_cb(win_chr_pipe_poll, chr); |
| 1878 | else |
| 1879 | qemu_del_polling_cb(win_chr_poll, chr); |
Amit Shah | 793cbfb | 2009-08-11 21:27:48 +0530 | [diff] [blame] | 1880 | |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 1881 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1884 | static int win_chr_init(CharDriverState *chr, const char *filename, Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1885 | { |
| 1886 | WinCharState *s = chr->opaque; |
| 1887 | COMMCONFIG comcfg; |
| 1888 | COMMTIMEOUTS cto = { 0, 0, 0, 0, 0}; |
| 1889 | COMSTAT comstat; |
| 1890 | DWORD size; |
| 1891 | DWORD err; |
| 1892 | |
| 1893 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1894 | if (!s->hsend) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1895 | error_setg(errp, "Failed CreateEvent"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1896 | goto fail; |
| 1897 | } |
| 1898 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 1899 | if (!s->hrecv) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1900 | error_setg(errp, "Failed CreateEvent"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1901 | goto fail; |
| 1902 | } |
| 1903 | |
| 1904 | s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, |
| 1905 | OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); |
| 1906 | if (s->hcom == INVALID_HANDLE_VALUE) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1907 | error_setg(errp, "Failed CreateFile (%lu)", GetLastError()); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1908 | s->hcom = NULL; |
| 1909 | goto fail; |
| 1910 | } |
| 1911 | |
| 1912 | if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1913 | error_setg(errp, "Failed SetupComm"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1914 | goto fail; |
| 1915 | } |
| 1916 | |
| 1917 | ZeroMemory(&comcfg, sizeof(COMMCONFIG)); |
| 1918 | size = sizeof(COMMCONFIG); |
| 1919 | GetDefaultCommConfig(filename, &comcfg, &size); |
| 1920 | comcfg.dcb.DCBlength = sizeof(DCB); |
| 1921 | CommConfigDialog(filename, NULL, &comcfg); |
| 1922 | |
| 1923 | if (!SetCommState(s->hcom, &comcfg.dcb)) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1924 | error_setg(errp, "Failed SetCommState"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1925 | goto fail; |
| 1926 | } |
| 1927 | |
| 1928 | if (!SetCommMask(s->hcom, EV_ERR)) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1929 | error_setg(errp, "Failed SetCommMask"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1930 | goto fail; |
| 1931 | } |
| 1932 | |
| 1933 | cto.ReadIntervalTimeout = MAXDWORD; |
| 1934 | if (!SetCommTimeouts(s->hcom, &cto)) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1935 | error_setg(errp, "Failed SetCommTimeouts"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1936 | goto fail; |
| 1937 | } |
| 1938 | |
| 1939 | if (!ClearCommError(s->hcom, &err, &comstat)) { |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 1940 | error_setg(errp, "Failed ClearCommError"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1941 | goto fail; |
| 1942 | } |
| 1943 | qemu_add_polling_cb(win_chr_poll, chr); |
| 1944 | return 0; |
| 1945 | |
| 1946 | fail: |
| 1947 | win_chr_close(chr); |
| 1948 | return -1; |
| 1949 | } |
| 1950 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 1951 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1952 | static int win_chr_write(CharDriverState *chr, const uint8_t *buf, int len1) |
| 1953 | { |
| 1954 | WinCharState *s = chr->opaque; |
| 1955 | DWORD len, ret, size, err; |
| 1956 | |
| 1957 | len = len1; |
| 1958 | ZeroMemory(&s->osend, sizeof(s->osend)); |
| 1959 | s->osend.hEvent = s->hsend; |
| 1960 | while (len > 0) { |
| 1961 | if (s->hsend) |
| 1962 | ret = WriteFile(s->hcom, buf, len, &size, &s->osend); |
| 1963 | else |
| 1964 | ret = WriteFile(s->hcom, buf, len, &size, NULL); |
| 1965 | if (!ret) { |
| 1966 | err = GetLastError(); |
| 1967 | if (err == ERROR_IO_PENDING) { |
| 1968 | ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE); |
| 1969 | if (ret) { |
| 1970 | buf += size; |
| 1971 | len -= size; |
| 1972 | } else { |
| 1973 | break; |
| 1974 | } |
| 1975 | } else { |
| 1976 | break; |
| 1977 | } |
| 1978 | } else { |
| 1979 | buf += size; |
| 1980 | len -= size; |
| 1981 | } |
| 1982 | } |
| 1983 | return len1 - len; |
| 1984 | } |
| 1985 | |
| 1986 | static int win_chr_read_poll(CharDriverState *chr) |
| 1987 | { |
| 1988 | WinCharState *s = chr->opaque; |
| 1989 | |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 1990 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1991 | return s->max_size; |
| 1992 | } |
| 1993 | |
| 1994 | static void win_chr_readfile(CharDriverState *chr) |
| 1995 | { |
| 1996 | WinCharState *s = chr->opaque; |
| 1997 | int ret, err; |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 1998 | uint8_t buf[READ_BUF_LEN]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 1999 | DWORD size; |
| 2000 | |
| 2001 | ZeroMemory(&s->orecv, sizeof(s->orecv)); |
| 2002 | s->orecv.hEvent = s->hrecv; |
| 2003 | ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); |
| 2004 | if (!ret) { |
| 2005 | err = GetLastError(); |
| 2006 | if (err == ERROR_IO_PENDING) { |
| 2007 | ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE); |
| 2008 | } |
| 2009 | } |
| 2010 | |
| 2011 | if (size > 0) { |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 2012 | qemu_chr_be_write(chr, buf, size); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2013 | } |
| 2014 | } |
| 2015 | |
| 2016 | static void win_chr_read(CharDriverState *chr) |
| 2017 | { |
| 2018 | WinCharState *s = chr->opaque; |
| 2019 | |
| 2020 | if (s->len > s->max_size) |
| 2021 | s->len = s->max_size; |
| 2022 | if (s->len == 0) |
| 2023 | return; |
| 2024 | |
| 2025 | win_chr_readfile(chr); |
| 2026 | } |
| 2027 | |
| 2028 | static int win_chr_poll(void *opaque) |
| 2029 | { |
| 2030 | CharDriverState *chr = opaque; |
| 2031 | WinCharState *s = chr->opaque; |
| 2032 | COMSTAT status; |
| 2033 | DWORD comerr; |
| 2034 | |
| 2035 | ClearCommError(s->hcom, &comerr, &status); |
| 2036 | if (status.cbInQue > 0) { |
| 2037 | s->len = status.cbInQue; |
| 2038 | win_chr_read_poll(chr); |
| 2039 | win_chr_read(chr); |
| 2040 | return 1; |
| 2041 | } |
| 2042 | return 0; |
| 2043 | } |
| 2044 | |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 2045 | static CharDriverState *qemu_chr_open_win_path(const char *filename, |
| 2046 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2047 | { |
| 2048 | CharDriverState *chr; |
| 2049 | WinCharState *s; |
| 2050 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 2051 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2052 | s = g_new0(WinCharState, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2053 | chr->opaque = s; |
| 2054 | chr->chr_write = win_chr_write; |
| 2055 | chr->chr_close = win_chr_close; |
| 2056 | |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 2057 | if (win_chr_init(chr, filename, errp) < 0) { |
Stefan Weil | 2e02e18 | 2011-10-07 07:38:46 +0200 | [diff] [blame] | 2058 | g_free(s); |
| 2059 | g_free(chr); |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2060 | return NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2061 | } |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2062 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2063 | } |
| 2064 | |
| 2065 | static int win_chr_pipe_poll(void *opaque) |
| 2066 | { |
| 2067 | CharDriverState *chr = opaque; |
| 2068 | WinCharState *s = chr->opaque; |
| 2069 | DWORD size; |
| 2070 | |
| 2071 | PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); |
| 2072 | if (size > 0) { |
| 2073 | s->len = size; |
| 2074 | win_chr_read_poll(chr); |
| 2075 | win_chr_read(chr); |
| 2076 | return 1; |
| 2077 | } |
| 2078 | return 0; |
| 2079 | } |
| 2080 | |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2081 | static int win_chr_pipe_init(CharDriverState *chr, const char *filename, |
| 2082 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2083 | { |
| 2084 | WinCharState *s = chr->opaque; |
| 2085 | OVERLAPPED ov; |
| 2086 | int ret; |
| 2087 | DWORD size; |
Corey Minyard | 9f78116 | 2014-10-02 11:17:33 -0500 | [diff] [blame] | 2088 | char openname[CHR_MAX_FILENAME_SIZE]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2089 | |
| 2090 | s->fpipe = TRUE; |
| 2091 | |
| 2092 | s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 2093 | if (!s->hsend) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2094 | error_setg(errp, "Failed CreateEvent"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2095 | goto fail; |
| 2096 | } |
| 2097 | s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 2098 | if (!s->hrecv) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2099 | error_setg(errp, "Failed CreateEvent"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2100 | goto fail; |
| 2101 | } |
| 2102 | |
| 2103 | snprintf(openname, sizeof(openname), "\\\\.\\pipe\\%s", filename); |
| 2104 | s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
| 2105 | PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | |
| 2106 | PIPE_WAIT, |
| 2107 | MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL); |
| 2108 | if (s->hcom == INVALID_HANDLE_VALUE) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2109 | error_setg(errp, "Failed CreateNamedPipe (%lu)", GetLastError()); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2110 | s->hcom = NULL; |
| 2111 | goto fail; |
| 2112 | } |
| 2113 | |
| 2114 | ZeroMemory(&ov, sizeof(ov)); |
| 2115 | ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
| 2116 | ret = ConnectNamedPipe(s->hcom, &ov); |
| 2117 | if (ret) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2118 | error_setg(errp, "Failed ConnectNamedPipe"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2119 | goto fail; |
| 2120 | } |
| 2121 | |
| 2122 | ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); |
| 2123 | if (!ret) { |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2124 | error_setg(errp, "Failed GetOverlappedResult"); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2125 | if (ov.hEvent) { |
| 2126 | CloseHandle(ov.hEvent); |
| 2127 | ov.hEvent = NULL; |
| 2128 | } |
| 2129 | goto fail; |
| 2130 | } |
| 2131 | |
| 2132 | if (ov.hEvent) { |
| 2133 | CloseHandle(ov.hEvent); |
| 2134 | ov.hEvent = NULL; |
| 2135 | } |
| 2136 | qemu_add_polling_cb(win_chr_pipe_poll, chr); |
| 2137 | return 0; |
| 2138 | |
| 2139 | fail: |
| 2140 | win_chr_close(chr); |
| 2141 | return -1; |
| 2142 | } |
| 2143 | |
| 2144 | |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2145 | static CharDriverState *qemu_chr_open_pipe(const char *id, |
| 2146 | ChardevBackend *backend, |
| 2147 | ChardevReturn *ret, |
| 2148 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2149 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 2150 | ChardevHostdev *opts = backend->u.pipe; |
Gerd Hoffmann | 548cbb3 | 2013-02-25 11:50:55 +0100 | [diff] [blame] | 2151 | const char *filename = opts->device; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2152 | CharDriverState *chr; |
| 2153 | WinCharState *s; |
| 2154 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 2155 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2156 | s = g_new0(WinCharState, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2157 | chr->opaque = s; |
| 2158 | chr->chr_write = win_chr_write; |
| 2159 | chr->chr_close = win_chr_close; |
| 2160 | |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 2161 | if (win_chr_pipe_init(chr, filename, errp) < 0) { |
Stefan Weil | 2e02e18 | 2011-10-07 07:38:46 +0200 | [diff] [blame] | 2162 | g_free(s); |
| 2163 | g_free(chr); |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2164 | return NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2165 | } |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2166 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2167 | } |
| 2168 | |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2169 | static CharDriverState *qemu_chr_open_win_file(HANDLE fd_out) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2170 | { |
| 2171 | CharDriverState *chr; |
| 2172 | WinCharState *s; |
| 2173 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 2174 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2175 | s = g_new0(WinCharState, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2176 | s->hcom = fd_out; |
| 2177 | chr->opaque = s; |
| 2178 | chr->chr_write = win_chr_write; |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2179 | return chr; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2180 | } |
| 2181 | |
Paolo Bonzini | 122e5ed | 2015-09-29 15:42:04 +0200 | [diff] [blame] | 2182 | static CharDriverState *qemu_chr_open_win_con(const char *id, |
| 2183 | ChardevBackend *backend, |
| 2184 | ChardevReturn *ret, |
| 2185 | Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2186 | { |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2187 | return qemu_chr_open_win_file(GetStdHandle(STD_OUTPUT_HANDLE)); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2188 | } |
| 2189 | |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2190 | static int win_stdio_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2191 | { |
| 2192 | HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE); |
| 2193 | DWORD dwSize; |
| 2194 | int len1; |
| 2195 | |
| 2196 | len1 = len; |
| 2197 | |
| 2198 | while (len1 > 0) { |
| 2199 | if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) { |
| 2200 | break; |
| 2201 | } |
| 2202 | buf += dwSize; |
| 2203 | len1 -= dwSize; |
| 2204 | } |
| 2205 | |
| 2206 | return len - len1; |
| 2207 | } |
| 2208 | |
| 2209 | static void win_stdio_wait_func(void *opaque) |
| 2210 | { |
| 2211 | CharDriverState *chr = opaque; |
| 2212 | WinStdioCharState *stdio = chr->opaque; |
| 2213 | INPUT_RECORD buf[4]; |
| 2214 | int ret; |
| 2215 | DWORD dwSize; |
| 2216 | int i; |
| 2217 | |
Stefan Weil | dff7424 | 2013-12-07 14:48:04 +0100 | [diff] [blame] | 2218 | ret = ReadConsoleInput(stdio->hStdIn, buf, ARRAY_SIZE(buf), &dwSize); |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2219 | |
| 2220 | if (!ret) { |
| 2221 | /* Avoid error storm */ |
| 2222 | qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
| 2223 | return; |
| 2224 | } |
| 2225 | |
| 2226 | for (i = 0; i < dwSize; i++) { |
| 2227 | KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent; |
| 2228 | |
| 2229 | if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) { |
| 2230 | int j; |
| 2231 | if (kev->uChar.AsciiChar != 0) { |
| 2232 | for (j = 0; j < kev->wRepeatCount; j++) { |
| 2233 | if (qemu_chr_be_can_write(chr)) { |
| 2234 | uint8_t c = kev->uChar.AsciiChar; |
| 2235 | qemu_chr_be_write(chr, &c, 1); |
| 2236 | } |
| 2237 | } |
| 2238 | } |
| 2239 | } |
| 2240 | } |
| 2241 | } |
| 2242 | |
| 2243 | static DWORD WINAPI win_stdio_thread(LPVOID param) |
| 2244 | { |
| 2245 | CharDriverState *chr = param; |
| 2246 | WinStdioCharState *stdio = chr->opaque; |
| 2247 | int ret; |
| 2248 | DWORD dwSize; |
| 2249 | |
| 2250 | while (1) { |
| 2251 | |
| 2252 | /* Wait for one byte */ |
| 2253 | ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL); |
| 2254 | |
| 2255 | /* Exit in case of error, continue if nothing read */ |
| 2256 | if (!ret) { |
| 2257 | break; |
| 2258 | } |
| 2259 | if (!dwSize) { |
| 2260 | continue; |
| 2261 | } |
| 2262 | |
| 2263 | /* Some terminal emulator returns \r\n for Enter, just pass \n */ |
| 2264 | if (stdio->win_stdio_buf == '\r') { |
| 2265 | continue; |
| 2266 | } |
| 2267 | |
| 2268 | /* Signal the main thread and wait until the byte was eaten */ |
| 2269 | if (!SetEvent(stdio->hInputReadyEvent)) { |
| 2270 | break; |
| 2271 | } |
| 2272 | if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE) |
| 2273 | != WAIT_OBJECT_0) { |
| 2274 | break; |
| 2275 | } |
| 2276 | } |
| 2277 | |
| 2278 | qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
| 2279 | return 0; |
| 2280 | } |
| 2281 | |
| 2282 | static void win_stdio_thread_wait_func(void *opaque) |
| 2283 | { |
| 2284 | CharDriverState *chr = opaque; |
| 2285 | WinStdioCharState *stdio = chr->opaque; |
| 2286 | |
| 2287 | if (qemu_chr_be_can_write(chr)) { |
| 2288 | qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1); |
| 2289 | } |
| 2290 | |
| 2291 | SetEvent(stdio->hInputDoneEvent); |
| 2292 | } |
| 2293 | |
| 2294 | static void qemu_chr_set_echo_win_stdio(CharDriverState *chr, bool echo) |
| 2295 | { |
| 2296 | WinStdioCharState *stdio = chr->opaque; |
| 2297 | DWORD dwMode = 0; |
| 2298 | |
| 2299 | GetConsoleMode(stdio->hStdIn, &dwMode); |
| 2300 | |
| 2301 | if (echo) { |
| 2302 | SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT); |
| 2303 | } else { |
| 2304 | SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT); |
| 2305 | } |
| 2306 | } |
| 2307 | |
| 2308 | static void win_stdio_close(CharDriverState *chr) |
| 2309 | { |
| 2310 | WinStdioCharState *stdio = chr->opaque; |
| 2311 | |
| 2312 | if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) { |
| 2313 | CloseHandle(stdio->hInputReadyEvent); |
| 2314 | } |
| 2315 | if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) { |
| 2316 | CloseHandle(stdio->hInputDoneEvent); |
| 2317 | } |
| 2318 | if (stdio->hInputThread != INVALID_HANDLE_VALUE) { |
| 2319 | TerminateThread(stdio->hInputThread, 0); |
| 2320 | } |
| 2321 | |
| 2322 | g_free(chr->opaque); |
| 2323 | g_free(chr); |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2324 | } |
| 2325 | |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2326 | static CharDriverState *qemu_chr_open_stdio(const char *id, |
| 2327 | ChardevBackend *backend, |
| 2328 | ChardevReturn *ret, |
| 2329 | Error **errp) |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2330 | { |
| 2331 | CharDriverState *chr; |
| 2332 | WinStdioCharState *stdio; |
| 2333 | DWORD dwMode; |
| 2334 | int is_console = 0; |
| 2335 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 2336 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2337 | stdio = g_new0(WinStdioCharState, 1); |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2338 | |
| 2339 | stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE); |
| 2340 | if (stdio->hStdIn == INVALID_HANDLE_VALUE) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2341 | error_setg(errp, "cannot open stdio: invalid handle"); |
| 2342 | return NULL; |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2343 | } |
| 2344 | |
| 2345 | is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0; |
| 2346 | |
| 2347 | chr->opaque = stdio; |
| 2348 | chr->chr_write = win_stdio_write; |
| 2349 | chr->chr_close = win_stdio_close; |
| 2350 | |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 2351 | if (is_console) { |
| 2352 | if (qemu_add_wait_object(stdio->hStdIn, |
| 2353 | win_stdio_wait_func, chr)) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2354 | error_setg(errp, "qemu_add_wait_object: failed"); |
| 2355 | goto err1; |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 2356 | } |
| 2357 | } else { |
| 2358 | DWORD dwId; |
| 2359 | |
| 2360 | stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
| 2361 | stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL); |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2362 | if (stdio->hInputReadyEvent == INVALID_HANDLE_VALUE |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 2363 | || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2364 | error_setg(errp, "cannot create event"); |
| 2365 | goto err2; |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 2366 | } |
| 2367 | if (qemu_add_wait_object(stdio->hInputReadyEvent, |
| 2368 | win_stdio_thread_wait_func, chr)) { |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2369 | error_setg(errp, "qemu_add_wait_object: failed"); |
| 2370 | goto err2; |
| 2371 | } |
| 2372 | stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread, |
| 2373 | chr, 0, &dwId); |
| 2374 | |
| 2375 | if (stdio->hInputThread == INVALID_HANDLE_VALUE) { |
| 2376 | error_setg(errp, "cannot create stdio thread"); |
| 2377 | goto err3; |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2378 | } |
| 2379 | } |
| 2380 | |
| 2381 | dwMode |= ENABLE_LINE_INPUT; |
| 2382 | |
Anthony Liguori | ed7a154 | 2013-03-05 23:21:17 +0530 | [diff] [blame] | 2383 | if (is_console) { |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2384 | /* set the terminal in raw mode */ |
| 2385 | /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */ |
| 2386 | dwMode |= ENABLE_PROCESSED_INPUT; |
| 2387 | } |
| 2388 | |
| 2389 | SetConsoleMode(stdio->hStdIn, dwMode); |
| 2390 | |
| 2391 | chr->chr_set_echo = qemu_chr_set_echo_win_stdio; |
| 2392 | qemu_chr_fe_set_echo(chr, false); |
| 2393 | |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2394 | return chr; |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 2395 | |
| 2396 | err3: |
| 2397 | qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL); |
| 2398 | err2: |
| 2399 | CloseHandle(stdio->hInputReadyEvent); |
| 2400 | CloseHandle(stdio->hInputDoneEvent); |
| 2401 | err1: |
| 2402 | qemu_del_wait_object(stdio->hStdIn, NULL, NULL); |
| 2403 | return NULL; |
Fabien Chouteau | db418a0 | 2011-10-06 16:37:51 +0200 | [diff] [blame] | 2404 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2405 | #endif /* !_WIN32 */ |
| 2406 | |
Anthony Liguori | 5ab8211 | 2013-03-05 23:21:31 +0530 | [diff] [blame] | 2407 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2408 | /***********************************************************/ |
| 2409 | /* UDP Net console */ |
| 2410 | |
| 2411 | typedef struct { |
| 2412 | int fd; |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2413 | GIOChannel *chan; |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 2414 | uint8_t buf[READ_BUF_LEN]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2415 | int bufcnt; |
| 2416 | int bufptr; |
| 2417 | int max_size; |
| 2418 | } NetCharDriver; |
| 2419 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 2420 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2421 | static int udp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2422 | { |
| 2423 | NetCharDriver *s = chr->opaque; |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2424 | gsize bytes_written; |
| 2425 | GIOStatus status; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2426 | |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2427 | status = g_io_channel_write_chars(s->chan, (const gchar *)buf, len, &bytes_written, NULL); |
| 2428 | if (status == G_IO_STATUS_EOF) { |
| 2429 | return 0; |
| 2430 | } else if (status != G_IO_STATUS_NORMAL) { |
| 2431 | return -1; |
| 2432 | } |
| 2433 | |
| 2434 | return bytes_written; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2435 | } |
| 2436 | |
| 2437 | static int udp_chr_read_poll(void *opaque) |
| 2438 | { |
| 2439 | CharDriverState *chr = opaque; |
| 2440 | NetCharDriver *s = chr->opaque; |
| 2441 | |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 2442 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2443 | |
| 2444 | /* If there were any stray characters in the queue process them |
| 2445 | * first |
| 2446 | */ |
| 2447 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 2448 | qemu_chr_be_write(chr, &s->buf[s->bufptr], 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2449 | s->bufptr++; |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 2450 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2451 | } |
| 2452 | return s->max_size; |
| 2453 | } |
| 2454 | |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2455 | static gboolean udp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2456 | { |
| 2457 | CharDriverState *chr = opaque; |
| 2458 | NetCharDriver *s = chr->opaque; |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2459 | gsize bytes_read = 0; |
| 2460 | GIOStatus status; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2461 | |
Paolo Bonzini | cdbf6e1 | 2013-04-19 17:32:08 +0200 | [diff] [blame] | 2462 | if (s->max_size == 0) { |
| 2463 | return TRUE; |
| 2464 | } |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2465 | status = g_io_channel_read_chars(s->chan, (gchar *)s->buf, sizeof(s->buf), |
| 2466 | &bytes_read, NULL); |
| 2467 | s->bufcnt = bytes_read; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2468 | s->bufptr = s->bufcnt; |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2469 | if (status != G_IO_STATUS_NORMAL) { |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 2470 | remove_fd_in_watch(chr); |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2471 | return FALSE; |
| 2472 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2473 | |
| 2474 | s->bufptr = 0; |
| 2475 | while (s->max_size > 0 && s->bufptr < s->bufcnt) { |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 2476 | qemu_chr_be_write(chr, &s->buf[s->bufptr], 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2477 | s->bufptr++; |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 2478 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2479 | } |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2480 | |
| 2481 | return TRUE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2482 | } |
| 2483 | |
| 2484 | static void udp_chr_update_read_handler(CharDriverState *chr) |
| 2485 | { |
| 2486 | NetCharDriver *s = chr->opaque; |
| 2487 | |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 2488 | remove_fd_in_watch(chr); |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2489 | if (s->chan) { |
Amit Shah | 7ba9add | 2013-08-28 15:18:29 +0530 | [diff] [blame] | 2490 | chr->fd_in_tag = io_add_watch_poll(s->chan, udp_chr_read_poll, |
| 2491 | udp_chr_read, chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2492 | } |
| 2493 | } |
| 2494 | |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 2495 | static void udp_chr_close(CharDriverState *chr) |
| 2496 | { |
| 2497 | NetCharDriver *s = chr->opaque; |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 2498 | |
| 2499 | remove_fd_in_watch(chr); |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2500 | if (s->chan) { |
| 2501 | g_io_channel_unref(s->chan); |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 2502 | closesocket(s->fd); |
| 2503 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 2504 | g_free(s); |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 2505 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 2506 | } |
| 2507 | |
Gerd Hoffmann | 3ecc059 | 2013-02-27 14:10:47 +0100 | [diff] [blame] | 2508 | static CharDriverState *qemu_chr_open_udp_fd(int fd) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2509 | { |
| 2510 | CharDriverState *chr = NULL; |
| 2511 | NetCharDriver *s = NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2512 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 2513 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2514 | s = g_new0(NetCharDriver, 1); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2515 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2516 | s->fd = fd; |
Anthony Liguori | 76a9644 | 2013-03-05 23:21:21 +0530 | [diff] [blame] | 2517 | s->chan = io_channel_from_socket(s->fd); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2518 | s->bufcnt = 0; |
| 2519 | s->bufptr = 0; |
| 2520 | chr->opaque = s; |
| 2521 | chr->chr_write = udp_chr_write; |
| 2522 | chr->chr_update_read_handler = udp_chr_update_read_handler; |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 2523 | chr->chr_close = udp_chr_close; |
Michael Roth | bd5c51e | 2013-06-07 15:19:53 -0500 | [diff] [blame] | 2524 | /* be isn't opened until we get a connection */ |
| 2525 | chr->explicit_be_open = true; |
Markus Armbruster | 1f51470 | 2012-02-07 15:09:08 +0100 | [diff] [blame] | 2526 | return chr; |
Gerd Hoffmann | 3ecc059 | 2013-02-27 14:10:47 +0100 | [diff] [blame] | 2527 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2528 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2529 | /***********************************************************/ |
| 2530 | /* TCP Net console */ |
| 2531 | |
| 2532 | typedef struct { |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2533 | |
| 2534 | GIOChannel *chan, *listen_chan; |
Amit Shah | 7ba9add | 2013-08-28 15:18:29 +0530 | [diff] [blame] | 2535 | guint listen_tag; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2536 | int fd, listen_fd; |
| 2537 | int connected; |
| 2538 | int max_size; |
| 2539 | int do_telnetopt; |
| 2540 | int do_nodelay; |
| 2541 | int is_unix; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2542 | int *read_msgfds; |
| 2543 | int read_msgfds_num; |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2544 | int *write_msgfds; |
| 2545 | int write_msgfds_num; |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 2546 | |
| 2547 | SocketAddress *addr; |
| 2548 | bool is_listen; |
| 2549 | bool is_telnet; |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 2550 | |
| 2551 | guint reconnect_timer; |
| 2552 | int64_t reconnect_time; |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 2553 | bool connect_err_reported; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2554 | } TCPCharDriver; |
| 2555 | |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 2556 | static gboolean socket_reconnect_timeout(gpointer opaque); |
| 2557 | |
| 2558 | static void qemu_chr_socket_restart_timer(CharDriverState *chr) |
| 2559 | { |
| 2560 | TCPCharDriver *s = chr->opaque; |
| 2561 | assert(s->connected == 0); |
| 2562 | s->reconnect_timer = g_timeout_add_seconds(s->reconnect_time, |
| 2563 | socket_reconnect_timeout, chr); |
| 2564 | } |
| 2565 | |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 2566 | static void check_report_connect_error(CharDriverState *chr, |
| 2567 | Error *err) |
| 2568 | { |
| 2569 | TCPCharDriver *s = chr->opaque; |
| 2570 | |
| 2571 | if (!s->connect_err_reported) { |
| 2572 | error_report("Unable to connect character device %s: %s", |
| 2573 | chr->label, error_get_pretty(err)); |
| 2574 | s->connect_err_reported = true; |
| 2575 | } |
| 2576 | qemu_chr_socket_restart_timer(chr); |
| 2577 | } |
| 2578 | |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2579 | static gboolean tcp_chr_accept(GIOChannel *chan, GIOCondition cond, void *opaque); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2580 | |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2581 | #ifndef _WIN32 |
| 2582 | static int unix_send_msgfds(CharDriverState *chr, const uint8_t *buf, int len) |
| 2583 | { |
| 2584 | TCPCharDriver *s = chr->opaque; |
| 2585 | struct msghdr msgh; |
| 2586 | struct iovec iov; |
| 2587 | int r; |
| 2588 | |
| 2589 | size_t fd_size = s->write_msgfds_num * sizeof(int); |
| 2590 | char control[CMSG_SPACE(fd_size)]; |
| 2591 | struct cmsghdr *cmsg; |
| 2592 | |
| 2593 | memset(&msgh, 0, sizeof(msgh)); |
| 2594 | memset(control, 0, sizeof(control)); |
| 2595 | |
| 2596 | /* set the payload */ |
| 2597 | iov.iov_base = (uint8_t *) buf; |
| 2598 | iov.iov_len = len; |
| 2599 | |
| 2600 | msgh.msg_iov = &iov; |
| 2601 | msgh.msg_iovlen = 1; |
| 2602 | |
| 2603 | msgh.msg_control = control; |
| 2604 | msgh.msg_controllen = sizeof(control); |
| 2605 | |
| 2606 | cmsg = CMSG_FIRSTHDR(&msgh); |
| 2607 | |
| 2608 | cmsg->cmsg_len = CMSG_LEN(fd_size); |
| 2609 | cmsg->cmsg_level = SOL_SOCKET; |
| 2610 | cmsg->cmsg_type = SCM_RIGHTS; |
| 2611 | memcpy(CMSG_DATA(cmsg), s->write_msgfds, fd_size); |
| 2612 | |
| 2613 | do { |
| 2614 | r = sendmsg(s->fd, &msgh, 0); |
| 2615 | } while (r < 0 && errno == EINTR); |
| 2616 | |
| 2617 | /* free the written msgfds, no matter what */ |
| 2618 | if (s->write_msgfds_num) { |
| 2619 | g_free(s->write_msgfds); |
| 2620 | s->write_msgfds = 0; |
| 2621 | s->write_msgfds_num = 0; |
| 2622 | } |
| 2623 | |
| 2624 | return r; |
| 2625 | } |
| 2626 | #endif |
| 2627 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 2628 | /* Called with chr_write_lock held. */ |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2629 | static int tcp_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 2630 | { |
| 2631 | TCPCharDriver *s = chr->opaque; |
| 2632 | if (s->connected) { |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2633 | #ifndef _WIN32 |
| 2634 | if (s->is_unix && s->write_msgfds_num) { |
| 2635 | return unix_send_msgfds(chr, buf, len); |
| 2636 | } else |
| 2637 | #endif |
| 2638 | { |
| 2639 | return io_channel_send(s->chan, buf, len); |
| 2640 | } |
Anthony Liguori | 455aa1e | 2012-09-05 13:52:49 -0500 | [diff] [blame] | 2641 | } else { |
Anthony Liguori | 6db0fdc | 2012-09-12 14:34:07 -0500 | [diff] [blame] | 2642 | /* XXX: indicate an error ? */ |
Anthony Liguori | 455aa1e | 2012-09-05 13:52:49 -0500 | [diff] [blame] | 2643 | return len; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2644 | } |
| 2645 | } |
| 2646 | |
| 2647 | static int tcp_chr_read_poll(void *opaque) |
| 2648 | { |
| 2649 | CharDriverState *chr = opaque; |
| 2650 | TCPCharDriver *s = chr->opaque; |
| 2651 | if (!s->connected) |
| 2652 | return 0; |
Anthony Liguori | 909cda1 | 2011-08-15 11:17:31 -0500 | [diff] [blame] | 2653 | s->max_size = qemu_chr_be_can_write(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2654 | return s->max_size; |
| 2655 | } |
| 2656 | |
| 2657 | #define IAC 255 |
| 2658 | #define IAC_BREAK 243 |
| 2659 | static void tcp_chr_process_IAC_bytes(CharDriverState *chr, |
| 2660 | TCPCharDriver *s, |
| 2661 | uint8_t *buf, int *size) |
| 2662 | { |
| 2663 | /* Handle any telnet client's basic IAC options to satisfy char by |
| 2664 | * char mode with no echo. All IAC options will be removed from |
| 2665 | * the buf and the do_telnetopt variable will be used to track the |
| 2666 | * state of the width of the IAC information. |
| 2667 | * |
| 2668 | * IAC commands come in sets of 3 bytes with the exception of the |
| 2669 | * "IAC BREAK" command and the double IAC. |
| 2670 | */ |
| 2671 | |
| 2672 | int i; |
| 2673 | int j = 0; |
| 2674 | |
| 2675 | for (i = 0; i < *size; i++) { |
| 2676 | if (s->do_telnetopt > 1) { |
| 2677 | if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) { |
| 2678 | /* Double IAC means send an IAC */ |
| 2679 | if (j != i) |
| 2680 | buf[j] = buf[i]; |
| 2681 | j++; |
| 2682 | s->do_telnetopt = 1; |
| 2683 | } else { |
| 2684 | if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) { |
| 2685 | /* Handle IAC break commands by sending a serial break */ |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 2686 | qemu_chr_be_event(chr, CHR_EVENT_BREAK); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2687 | s->do_telnetopt++; |
| 2688 | } |
| 2689 | s->do_telnetopt++; |
| 2690 | } |
| 2691 | if (s->do_telnetopt >= 4) { |
| 2692 | s->do_telnetopt = 1; |
| 2693 | } |
| 2694 | } else { |
| 2695 | if ((unsigned char)buf[i] == IAC) { |
| 2696 | s->do_telnetopt = 2; |
| 2697 | } else { |
| 2698 | if (j != i) |
| 2699 | buf[j] = buf[i]; |
| 2700 | j++; |
| 2701 | } |
| 2702 | } |
| 2703 | } |
| 2704 | *size = j; |
| 2705 | } |
| 2706 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2707 | static int tcp_get_msgfds(CharDriverState *chr, int *fds, int num) |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2708 | { |
| 2709 | TCPCharDriver *s = chr->opaque; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2710 | int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num; |
| 2711 | |
Michael S. Tsirkin | c409572 | 2014-11-02 18:48:32 +0200 | [diff] [blame] | 2712 | assert(num <= TCP_MAX_FDS); |
| 2713 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2714 | if (to_copy) { |
Stefan Hajnoczi | d2fc39b | 2014-06-22 10:38:37 +0800 | [diff] [blame] | 2715 | int i; |
| 2716 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2717 | memcpy(fds, s->read_msgfds, to_copy * sizeof(int)); |
| 2718 | |
Stefan Hajnoczi | d2fc39b | 2014-06-22 10:38:37 +0800 | [diff] [blame] | 2719 | /* Close unused fds */ |
| 2720 | for (i = to_copy; i < s->read_msgfds_num; i++) { |
| 2721 | close(s->read_msgfds[i]); |
| 2722 | } |
| 2723 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2724 | g_free(s->read_msgfds); |
| 2725 | s->read_msgfds = 0; |
| 2726 | s->read_msgfds_num = 0; |
| 2727 | } |
| 2728 | |
| 2729 | return to_copy; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2730 | } |
| 2731 | |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2732 | static int tcp_set_msgfds(CharDriverState *chr, int *fds, int num) |
| 2733 | { |
| 2734 | TCPCharDriver *s = chr->opaque; |
| 2735 | |
| 2736 | /* clear old pending fd array */ |
Daniel P. Berrange | ef1e1e0 | 2015-08-26 12:17:18 +0100 | [diff] [blame] | 2737 | g_free(s->write_msgfds); |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2738 | |
| 2739 | if (num) { |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 2740 | s->write_msgfds = g_new(int, num); |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 2741 | memcpy(s->write_msgfds, fds, num * sizeof(int)); |
| 2742 | } |
| 2743 | |
| 2744 | s->write_msgfds_num = num; |
| 2745 | |
| 2746 | return 0; |
| 2747 | } |
| 2748 | |
Anthony Liguori | 73bcc2a | 2009-07-27 14:55:25 -0500 | [diff] [blame] | 2749 | #ifndef _WIN32 |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2750 | static void unix_process_msgfd(CharDriverState *chr, struct msghdr *msg) |
| 2751 | { |
| 2752 | TCPCharDriver *s = chr->opaque; |
| 2753 | struct cmsghdr *cmsg; |
| 2754 | |
| 2755 | for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) { |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2756 | int fd_size, i; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2757 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2758 | if (cmsg->cmsg_len < CMSG_LEN(sizeof(int)) || |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2759 | cmsg->cmsg_level != SOL_SOCKET || |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2760 | cmsg->cmsg_type != SCM_RIGHTS) { |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2761 | continue; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2762 | } |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2763 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2764 | fd_size = cmsg->cmsg_len - CMSG_LEN(0); |
| 2765 | |
| 2766 | if (!fd_size) { |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2767 | continue; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2768 | } |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2769 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2770 | /* close and clean read_msgfds */ |
| 2771 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 2772 | close(s->read_msgfds[i]); |
| 2773 | } |
Stefan Hajnoczi | 9b938c7 | 2013-03-27 10:10:46 +0100 | [diff] [blame] | 2774 | |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 2775 | if (s->read_msgfds_num) { |
| 2776 | g_free(s->read_msgfds); |
| 2777 | } |
| 2778 | |
| 2779 | s->read_msgfds_num = fd_size / sizeof(int); |
| 2780 | s->read_msgfds = g_malloc(fd_size); |
| 2781 | memcpy(s->read_msgfds, CMSG_DATA(cmsg), fd_size); |
| 2782 | |
| 2783 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 2784 | int fd = s->read_msgfds[i]; |
| 2785 | if (fd < 0) { |
| 2786 | continue; |
| 2787 | } |
| 2788 | |
| 2789 | /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */ |
| 2790 | qemu_set_block(fd); |
| 2791 | |
| 2792 | #ifndef MSG_CMSG_CLOEXEC |
| 2793 | qemu_set_cloexec(fd); |
| 2794 | #endif |
| 2795 | } |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2796 | } |
| 2797 | } |
| 2798 | |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2799 | static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2800 | { |
| 2801 | TCPCharDriver *s = chr->opaque; |
Blue Swirl | 7cba04f | 2009-08-01 10:13:20 +0000 | [diff] [blame] | 2802 | struct msghdr msg = { NULL, }; |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2803 | struct iovec iov[1]; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2804 | union { |
| 2805 | struct cmsghdr cmsg; |
Michael S. Tsirkin | c409572 | 2014-11-02 18:48:32 +0200 | [diff] [blame] | 2806 | char control[CMSG_SPACE(sizeof(int) * TCP_MAX_FDS)]; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2807 | } msg_control; |
Corey Bryant | 0613865 | 2012-08-14 16:43:42 -0400 | [diff] [blame] | 2808 | int flags = 0; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2809 | ssize_t ret; |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2810 | |
| 2811 | iov[0].iov_base = buf; |
| 2812 | iov[0].iov_len = len; |
| 2813 | |
| 2814 | msg.msg_iov = iov; |
| 2815 | msg.msg_iovlen = 1; |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2816 | msg.msg_control = &msg_control; |
| 2817 | msg.msg_controllen = sizeof(msg_control); |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2818 | |
Corey Bryant | 0613865 | 2012-08-14 16:43:42 -0400 | [diff] [blame] | 2819 | #ifdef MSG_CMSG_CLOEXEC |
| 2820 | flags |= MSG_CMSG_CLOEXEC; |
| 2821 | #endif |
Paolo Bonzini | 9172f42 | 2015-07-21 09:25:54 +0200 | [diff] [blame] | 2822 | do { |
| 2823 | ret = recvmsg(s->fd, &msg, flags); |
| 2824 | } while (ret == -1 && errno == EINTR); |
| 2825 | |
Corey Bryant | 0613865 | 2012-08-14 16:43:42 -0400 | [diff] [blame] | 2826 | if (ret > 0 && s->is_unix) { |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2827 | unix_process_msgfd(chr, &msg); |
Corey Bryant | 0613865 | 2012-08-14 16:43:42 -0400 | [diff] [blame] | 2828 | } |
Mark McLoughlin | 7d17405 | 2009-07-22 09:11:39 +0100 | [diff] [blame] | 2829 | |
| 2830 | return ret; |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2831 | } |
| 2832 | #else |
| 2833 | static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len) |
| 2834 | { |
| 2835 | TCPCharDriver *s = chr->opaque; |
Paolo Bonzini | 9172f42 | 2015-07-21 09:25:54 +0200 | [diff] [blame] | 2836 | ssize_t ret; |
| 2837 | |
| 2838 | do { |
| 2839 | ret = qemu_recv(s->fd, buf, len, 0); |
| 2840 | } while (ret == -1 && socket_error() == EINTR); |
| 2841 | |
| 2842 | return ret; |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2843 | } |
| 2844 | #endif |
| 2845 | |
Amit Shah | d3cc5bc | 2013-03-05 23:21:25 +0530 | [diff] [blame] | 2846 | static GSource *tcp_chr_add_watch(CharDriverState *chr, GIOCondition cond) |
| 2847 | { |
| 2848 | TCPCharDriver *s = chr->opaque; |
| 2849 | return g_io_create_watch(s->chan, cond); |
| 2850 | } |
| 2851 | |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 2852 | static void tcp_chr_disconnect(CharDriverState *chr) |
| 2853 | { |
| 2854 | TCPCharDriver *s = chr->opaque; |
| 2855 | |
| 2856 | s->connected = 0; |
| 2857 | if (s->listen_chan) { |
| 2858 | s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, |
| 2859 | tcp_chr_accept, chr); |
| 2860 | } |
| 2861 | remove_fd_in_watch(chr); |
| 2862 | g_io_channel_unref(s->chan); |
| 2863 | s->chan = NULL; |
| 2864 | closesocket(s->fd); |
| 2865 | s->fd = -1; |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 2866 | SocketAddress_to_str(chr->filename, CHR_MAX_FILENAME_SIZE, |
| 2867 | "disconnected:", s->addr, s->is_listen, s->is_telnet); |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 2868 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 2869 | if (s->reconnect_time) { |
| 2870 | qemu_chr_socket_restart_timer(chr); |
| 2871 | } |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 2872 | } |
| 2873 | |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2874 | static gboolean tcp_chr_read(GIOChannel *chan, GIOCondition cond, void *opaque) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2875 | { |
| 2876 | CharDriverState *chr = opaque; |
| 2877 | TCPCharDriver *s = chr->opaque; |
Amit Shah | 9bd7854 | 2009-11-03 19:59:54 +0530 | [diff] [blame] | 2878 | uint8_t buf[READ_BUF_LEN]; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2879 | int len, size; |
| 2880 | |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2881 | if (!s->connected || s->max_size <= 0) { |
Paolo Bonzini | cdbf6e1 | 2013-04-19 17:32:08 +0200 | [diff] [blame] | 2882 | return TRUE; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2883 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2884 | len = sizeof(buf); |
| 2885 | if (len > s->max_size) |
| 2886 | len = s->max_size; |
Mark McLoughlin | 9977c89 | 2009-07-22 09:11:38 +0100 | [diff] [blame] | 2887 | size = tcp_chr_recv(chr, (void *)buf, len); |
Nils Carlson | 4bf1cb0 | 2015-07-19 20:39:56 +0000 | [diff] [blame] | 2888 | if (size == 0 || |
| 2889 | (size < 0 && |
| 2890 | socket_error() != EAGAIN && socket_error() != EWOULDBLOCK)) { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2891 | /* connection closed */ |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 2892 | tcp_chr_disconnect(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2893 | } else if (size > 0) { |
| 2894 | if (s->do_telnetopt) |
| 2895 | tcp_chr_process_IAC_bytes(chr, s, buf, &size); |
| 2896 | if (size > 0) |
Anthony Liguori | fa5efcc | 2011-08-15 11:17:30 -0500 | [diff] [blame] | 2897 | qemu_chr_be_write(chr, buf, size); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2898 | } |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2899 | |
| 2900 | return TRUE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2901 | } |
| 2902 | |
Nikolay Nikolaev | 7b0bfdf | 2014-05-27 15:03:48 +0300 | [diff] [blame] | 2903 | static int tcp_chr_sync_read(CharDriverState *chr, const uint8_t *buf, int len) |
| 2904 | { |
| 2905 | TCPCharDriver *s = chr->opaque; |
| 2906 | int size; |
| 2907 | |
| 2908 | if (!s->connected) { |
| 2909 | return 0; |
| 2910 | } |
| 2911 | |
| 2912 | size = tcp_chr_recv(chr, (void *) buf, len); |
| 2913 | if (size == 0) { |
| 2914 | /* connection closed */ |
| 2915 | tcp_chr_disconnect(chr); |
| 2916 | } |
| 2917 | |
| 2918 | return size; |
| 2919 | } |
| 2920 | |
Blue Swirl | 68c18d1 | 2010-08-15 09:46:24 +0000 | [diff] [blame] | 2921 | #ifndef _WIN32 |
| 2922 | CharDriverState *qemu_chr_open_eventfd(int eventfd) |
| 2923 | { |
David Marchand | e9d21c4 | 2014-06-11 17:25:16 +0200 | [diff] [blame] | 2924 | CharDriverState *chr = qemu_chr_open_fd(eventfd, eventfd); |
| 2925 | |
| 2926 | if (chr) { |
| 2927 | chr->avail_connections = 1; |
| 2928 | } |
| 2929 | |
| 2930 | return chr; |
Cam Macdonell | 6cbf4c8 | 2010-07-27 10:54:13 -0600 | [diff] [blame] | 2931 | } |
Blue Swirl | 68c18d1 | 2010-08-15 09:46:24 +0000 | [diff] [blame] | 2932 | #endif |
Cam Macdonell | 6cbf4c8 | 2010-07-27 10:54:13 -0600 | [diff] [blame] | 2933 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2934 | static void tcp_chr_connect(void *opaque) |
| 2935 | { |
| 2936 | CharDriverState *chr = opaque; |
| 2937 | TCPCharDriver *s = chr->opaque; |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 2938 | struct sockaddr_storage ss, ps; |
| 2939 | socklen_t ss_len = sizeof(ss), ps_len = sizeof(ps); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 2940 | |
| 2941 | memset(&ss, 0, ss_len); |
| 2942 | if (getsockname(s->fd, (struct sockaddr *) &ss, &ss_len) != 0) { |
| 2943 | snprintf(chr->filename, CHR_MAX_FILENAME_SIZE, |
| 2944 | "Error in getsockname: %s\n", strerror(errno)); |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 2945 | } else if (getpeername(s->fd, (struct sockaddr *) &ps, &ps_len) != 0) { |
| 2946 | snprintf(chr->filename, CHR_MAX_FILENAME_SIZE, |
| 2947 | "Error in getpeername: %s\n", strerror(errno)); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 2948 | } else { |
Corey Minyard | 01ca519 | 2014-10-02 11:17:38 -0500 | [diff] [blame] | 2949 | sockaddr_to_str(chr->filename, CHR_MAX_FILENAME_SIZE, |
| 2950 | &ss, ss_len, &ps, ps_len, |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 2951 | s->is_listen, s->is_telnet); |
| 2952 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2953 | |
| 2954 | s->connected = 1; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2955 | if (s->chan) { |
Amit Shah | 7ba9add | 2013-08-28 15:18:29 +0530 | [diff] [blame] | 2956 | chr->fd_in_tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, |
| 2957 | tcp_chr_read, chr); |
David Gibson | bbdd2ad | 2012-09-10 12:30:56 +1000 | [diff] [blame] | 2958 | } |
Hans de Goede | fee204f | 2013-03-26 11:07:54 +0100 | [diff] [blame] | 2959 | qemu_chr_be_generic_open(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2960 | } |
| 2961 | |
Gal Hammer | ac1b84d | 2014-02-25 12:12:35 +0200 | [diff] [blame] | 2962 | static void tcp_chr_update_read_handler(CharDriverState *chr) |
| 2963 | { |
| 2964 | TCPCharDriver *s = chr->opaque; |
| 2965 | |
| 2966 | remove_fd_in_watch(chr); |
| 2967 | if (s->chan) { |
| 2968 | chr->fd_in_tag = io_add_watch_poll(s->chan, tcp_chr_read_poll, |
| 2969 | tcp_chr_read, chr); |
| 2970 | } |
| 2971 | } |
| 2972 | |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 2973 | #define IACSET(x,a,b,c) x[0] = a; x[1] = b; x[2] = c; |
| 2974 | static void tcp_chr_telnet_init(int fd) |
| 2975 | { |
| 2976 | char buf[3]; |
| 2977 | /* Send the telnet negotion to put telnet in binary, no echo, single char mode */ |
| 2978 | IACSET(buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */ |
| 2979 | send(fd, (char *)buf, 3, 0); |
| 2980 | IACSET(buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */ |
| 2981 | send(fd, (char *)buf, 3, 0); |
| 2982 | IACSET(buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */ |
| 2983 | send(fd, (char *)buf, 3, 0); |
| 2984 | IACSET(buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */ |
| 2985 | send(fd, (char *)buf, 3, 0); |
| 2986 | } |
| 2987 | |
Daniel P. Berrange | 1366108 | 2011-06-23 13:31:42 +0100 | [diff] [blame] | 2988 | static int tcp_chr_add_client(CharDriverState *chr, int fd) |
| 2989 | { |
| 2990 | TCPCharDriver *s = chr->opaque; |
| 2991 | if (s->fd != -1) |
| 2992 | return -1; |
| 2993 | |
Stefan Hajnoczi | f9e8cac | 2013-03-27 10:10:43 +0100 | [diff] [blame] | 2994 | qemu_set_nonblock(fd); |
Daniel P. Berrange | 1366108 | 2011-06-23 13:31:42 +0100 | [diff] [blame] | 2995 | if (s->do_nodelay) |
| 2996 | socket_set_nodelay(fd); |
| 2997 | s->fd = fd; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 2998 | s->chan = io_channel_from_socket(fd); |
Paolo Bonzini | 910b636 | 2013-04-19 17:32:06 +0200 | [diff] [blame] | 2999 | if (s->listen_tag) { |
| 3000 | g_source_remove(s->listen_tag); |
| 3001 | s->listen_tag = 0; |
| 3002 | } |
Daniel P. Berrange | 1366108 | 2011-06-23 13:31:42 +0100 | [diff] [blame] | 3003 | tcp_chr_connect(chr); |
| 3004 | |
| 3005 | return 0; |
| 3006 | } |
| 3007 | |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3008 | static gboolean tcp_chr_accept(GIOChannel *channel, GIOCondition cond, void *opaque) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3009 | { |
| 3010 | CharDriverState *chr = opaque; |
| 3011 | TCPCharDriver *s = chr->opaque; |
| 3012 | struct sockaddr_in saddr; |
| 3013 | #ifndef _WIN32 |
| 3014 | struct sockaddr_un uaddr; |
| 3015 | #endif |
| 3016 | struct sockaddr *addr; |
| 3017 | socklen_t len; |
| 3018 | int fd; |
| 3019 | |
| 3020 | for(;;) { |
| 3021 | #ifndef _WIN32 |
| 3022 | if (s->is_unix) { |
| 3023 | len = sizeof(uaddr); |
| 3024 | addr = (struct sockaddr *)&uaddr; |
| 3025 | } else |
| 3026 | #endif |
| 3027 | { |
| 3028 | len = sizeof(saddr); |
| 3029 | addr = (struct sockaddr *)&saddr; |
| 3030 | } |
Kevin Wolf | 40ff6d7 | 2009-12-02 12:24:42 +0100 | [diff] [blame] | 3031 | fd = qemu_accept(s->listen_fd, addr, &len); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3032 | if (fd < 0 && errno != EINTR) { |
Hans de Goede | 79f2007 | 2013-04-25 13:53:02 +0200 | [diff] [blame] | 3033 | s->listen_tag = 0; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3034 | return FALSE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3035 | } else if (fd >= 0) { |
| 3036 | if (s->do_telnetopt) |
| 3037 | tcp_chr_telnet_init(fd); |
| 3038 | break; |
| 3039 | } |
| 3040 | } |
Daniel P. Berrange | 1366108 | 2011-06-23 13:31:42 +0100 | [diff] [blame] | 3041 | if (tcp_chr_add_client(chr, fd) < 0) |
| 3042 | close(fd); |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3043 | |
| 3044 | return TRUE; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3045 | } |
| 3046 | |
| 3047 | static void tcp_chr_close(CharDriverState *chr) |
| 3048 | { |
| 3049 | TCPCharDriver *s = chr->opaque; |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 3050 | int i; |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3051 | |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3052 | if (s->reconnect_timer) { |
| 3053 | g_source_remove(s->reconnect_timer); |
| 3054 | s->reconnect_timer = 0; |
| 3055 | } |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3056 | qapi_free_SocketAddress(s->addr); |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 3057 | if (s->fd >= 0) { |
Amit Shah | 26da70c | 2013-08-28 15:23:37 +0530 | [diff] [blame] | 3058 | remove_fd_in_watch(chr); |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3059 | if (s->chan) { |
| 3060 | g_io_channel_unref(s->chan); |
| 3061 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3062 | closesocket(s->fd); |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 3063 | } |
| 3064 | if (s->listen_fd >= 0) { |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3065 | if (s->listen_tag) { |
| 3066 | g_source_remove(s->listen_tag); |
Paolo Bonzini | 910b636 | 2013-04-19 17:32:06 +0200 | [diff] [blame] | 3067 | s->listen_tag = 0; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3068 | } |
| 3069 | if (s->listen_chan) { |
| 3070 | g_io_channel_unref(s->listen_chan); |
| 3071 | } |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3072 | closesocket(s->listen_fd); |
aliguori | 819f56b | 2009-03-28 17:58:14 +0000 | [diff] [blame] | 3073 | } |
Nikolay Nikolaev | c76bf6b | 2014-05-27 15:04:15 +0300 | [diff] [blame] | 3074 | if (s->read_msgfds_num) { |
| 3075 | for (i = 0; i < s->read_msgfds_num; i++) { |
| 3076 | close(s->read_msgfds[i]); |
| 3077 | } |
| 3078 | g_free(s->read_msgfds); |
| 3079 | } |
Nikolay Nikolaev | d39aac7 | 2014-05-27 15:04:02 +0300 | [diff] [blame] | 3080 | if (s->write_msgfds_num) { |
| 3081 | g_free(s->write_msgfds); |
| 3082 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 3083 | g_free(s); |
Hans de Goede | a425d23 | 2011-11-19 10:22:43 +0100 | [diff] [blame] | 3084 | qemu_chr_be_event(chr, CHR_EVENT_CLOSED); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3085 | } |
| 3086 | |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 3087 | static void qemu_chr_finish_socket_connection(CharDriverState *chr, int fd) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3088 | { |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3089 | TCPCharDriver *s = chr->opaque; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3090 | |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3091 | if (s->is_listen) { |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3092 | s->listen_fd = fd; |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3093 | s->listen_chan = io_channel_from_socket(s->listen_fd); |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3094 | s->listen_tag = g_io_add_watch(s->listen_chan, G_IO_IN, |
| 3095 | tcp_chr_accept, chr); |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3096 | } else { |
| 3097 | s->connected = 1; |
| 3098 | s->fd = fd; |
| 3099 | socket_set_nodelay(fd); |
Anthony Liguori | 2ea5a7a | 2013-03-05 23:21:22 +0530 | [diff] [blame] | 3100 | s->chan = io_channel_from_socket(s->fd); |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3101 | tcp_chr_connect(chr); |
| 3102 | } |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3103 | } |
| 3104 | |
Corey Minyard | 5179502 | 2014-10-08 07:11:56 -0500 | [diff] [blame] | 3105 | static void qemu_chr_socket_connected(int fd, Error *err, void *opaque) |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3106 | { |
| 3107 | CharDriverState *chr = opaque; |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 3108 | TCPCharDriver *s = chr->opaque; |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3109 | |
| 3110 | if (fd < 0) { |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 3111 | check_report_connect_error(chr, err); |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3112 | return; |
| 3113 | } |
| 3114 | |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 3115 | s->connect_err_reported = false; |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3116 | qemu_chr_finish_socket_connection(chr, fd); |
| 3117 | } |
| 3118 | |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3119 | static bool qemu_chr_open_socket_fd(CharDriverState *chr, Error **errp) |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3120 | { |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3121 | TCPCharDriver *s = chr->opaque; |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3122 | int fd; |
| 3123 | |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3124 | if (s->is_listen) { |
| 3125 | fd = socket_listen(s->addr, errp); |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3126 | } else if (s->reconnect_time) { |
| 3127 | fd = socket_connect(s->addr, errp, qemu_chr_socket_connected, chr); |
| 3128 | return fd >= 0; |
| 3129 | } else { |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 3130 | fd = socket_connect(s->addr, errp, NULL, NULL); |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3131 | } |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 3132 | if (fd < 0) { |
| 3133 | return false; |
| 3134 | } |
| 3135 | |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 3136 | qemu_chr_finish_socket_connection(chr, fd); |
| 3137 | return true; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 3138 | } |
| 3139 | |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3140 | /*********************************************************/ |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3141 | /* Ring buffer chardev */ |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3142 | |
| 3143 | typedef struct { |
| 3144 | size_t size; |
| 3145 | size_t prod; |
| 3146 | size_t cons; |
| 3147 | uint8_t *cbuf; |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3148 | } RingBufCharDriver; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3149 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3150 | static size_t ringbuf_count(const CharDriverState *chr) |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3151 | { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3152 | const RingBufCharDriver *d = chr->opaque; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3153 | |
Markus Armbruster | 5c23010 | 2013-02-06 21:27:23 +0100 | [diff] [blame] | 3154 | return d->prod - d->cons; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3155 | } |
| 3156 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 3157 | /* Called with chr_write_lock held. */ |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3158 | static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len) |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3159 | { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3160 | RingBufCharDriver *d = chr->opaque; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3161 | int i; |
| 3162 | |
| 3163 | if (!buf || (len < 0)) { |
| 3164 | return -1; |
| 3165 | } |
| 3166 | |
| 3167 | for (i = 0; i < len; i++ ) { |
Markus Armbruster | 5c23010 | 2013-02-06 21:27:23 +0100 | [diff] [blame] | 3168 | d->cbuf[d->prod++ & (d->size - 1)] = buf[i]; |
| 3169 | if (d->prod - d->cons > d->size) { |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3170 | d->cons = d->prod - d->size; |
| 3171 | } |
| 3172 | } |
| 3173 | |
| 3174 | return 0; |
| 3175 | } |
| 3176 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3177 | static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len) |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3178 | { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3179 | RingBufCharDriver *d = chr->opaque; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3180 | int i; |
| 3181 | |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 3182 | qemu_mutex_lock(&chr->chr_write_lock); |
Markus Armbruster | 5c23010 | 2013-02-06 21:27:23 +0100 | [diff] [blame] | 3183 | for (i = 0; i < len && d->cons != d->prod; i++) { |
| 3184 | buf[i] = d->cbuf[d->cons++ & (d->size - 1)]; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3185 | } |
Paolo Bonzini | 9005b2a | 2014-06-18 08:43:58 +0200 | [diff] [blame] | 3186 | qemu_mutex_unlock(&chr->chr_write_lock); |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3187 | |
| 3188 | return i; |
| 3189 | } |
| 3190 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3191 | static void ringbuf_chr_close(struct CharDriverState *chr) |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3192 | { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3193 | RingBufCharDriver *d = chr->opaque; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3194 | |
| 3195 | g_free(d->cbuf); |
| 3196 | g_free(d); |
| 3197 | chr->opaque = NULL; |
| 3198 | } |
| 3199 | |
Paolo Bonzini | 479f09a | 2015-09-29 15:51:14 +0200 | [diff] [blame] | 3200 | static CharDriverState *qemu_chr_open_ringbuf(const char *id, |
| 3201 | ChardevBackend *backend, |
| 3202 | ChardevReturn *ret, |
Markus Armbruster | 4f57378 | 2013-07-26 16:44:32 +0200 | [diff] [blame] | 3203 | Error **errp) |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3204 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3205 | ChardevRingbuf *opts = backend->u.ringbuf; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3206 | CharDriverState *chr; |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3207 | RingBufCharDriver *d; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3208 | |
Paolo Bonzini | db39fcf | 2014-06-18 08:43:55 +0200 | [diff] [blame] | 3209 | chr = qemu_chr_alloc(); |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3210 | d = g_malloc(sizeof(*d)); |
| 3211 | |
Gerd Hoffmann | 1da48c6 | 2013-02-26 16:21:11 +0100 | [diff] [blame] | 3212 | d->size = opts->has_size ? opts->size : 65536; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3213 | |
| 3214 | /* The size must be power of 2 */ |
| 3215 | if (d->size & (d->size - 1)) { |
Markus Armbruster | 4f57378 | 2013-07-26 16:44:32 +0200 | [diff] [blame] | 3216 | error_setg(errp, "size of ringbuf chardev must be power of two"); |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3217 | goto fail; |
| 3218 | } |
| 3219 | |
| 3220 | d->prod = 0; |
| 3221 | d->cons = 0; |
| 3222 | d->cbuf = g_malloc0(d->size); |
| 3223 | |
| 3224 | chr->opaque = d; |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3225 | chr->chr_write = ringbuf_chr_write; |
| 3226 | chr->chr_close = ringbuf_chr_close; |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 3227 | |
| 3228 | return chr; |
| 3229 | |
| 3230 | fail: |
| 3231 | g_free(d); |
| 3232 | g_free(chr); |
| 3233 | return NULL; |
| 3234 | } |
| 3235 | |
Hani Benhabiles | 8e59777 | 2014-05-27 23:39:30 +0100 | [diff] [blame] | 3236 | bool chr_is_ringbuf(const CharDriverState *chr) |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3237 | { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3238 | return chr->chr_write == ringbuf_chr_write; |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3239 | } |
| 3240 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3241 | void qmp_ringbuf_write(const char *device, const char *data, |
Markus Armbruster | 82e59a6 | 2013-02-06 21:27:14 +0100 | [diff] [blame] | 3242 | bool has_format, enum DataFormat format, |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3243 | Error **errp) |
| 3244 | { |
| 3245 | CharDriverState *chr; |
Markus Armbruster | c4f331b | 2013-02-06 21:27:17 +0100 | [diff] [blame] | 3246 | const uint8_t *write_data; |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3247 | int ret; |
Peter Crosthwaite | 3d1bba2 | 2013-05-22 13:01:43 +1000 | [diff] [blame] | 3248 | gsize write_count; |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3249 | |
| 3250 | chr = qemu_chr_find(device); |
| 3251 | if (!chr) { |
Markus Armbruster | 1a69278 | 2013-02-06 21:27:16 +0100 | [diff] [blame] | 3252 | error_setg(errp, "Device '%s' not found", device); |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3253 | return; |
| 3254 | } |
| 3255 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3256 | if (!chr_is_ringbuf(chr)) { |
| 3257 | error_setg(errp,"%s is not a ringbuf device", device); |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3258 | return; |
| 3259 | } |
| 3260 | |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3261 | if (has_format && (format == DATA_FORMAT_BASE64)) { |
| 3262 | write_data = g_base64_decode(data, &write_count); |
| 3263 | } else { |
| 3264 | write_data = (uint8_t *)data; |
Markus Armbruster | 82e59a6 | 2013-02-06 21:27:14 +0100 | [diff] [blame] | 3265 | write_count = strlen(data); |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3266 | } |
| 3267 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3268 | ret = ringbuf_chr_write(chr, write_data, write_count); |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3269 | |
Markus Armbruster | 13289fb | 2013-02-06 21:27:18 +0100 | [diff] [blame] | 3270 | if (write_data != (uint8_t *)data) { |
| 3271 | g_free((void *)write_data); |
| 3272 | } |
| 3273 | |
Lei Li | 1f590cf | 2013-01-25 00:03:20 +0800 | [diff] [blame] | 3274 | if (ret < 0) { |
| 3275 | error_setg(errp, "Failed to write to device %s", device); |
| 3276 | return; |
| 3277 | } |
| 3278 | } |
| 3279 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3280 | char *qmp_ringbuf_read(const char *device, int64_t size, |
Markus Armbruster | 3ab651f | 2013-02-06 21:27:15 +0100 | [diff] [blame] | 3281 | bool has_format, enum DataFormat format, |
| 3282 | Error **errp) |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3283 | { |
| 3284 | CharDriverState *chr; |
Markus Armbruster | c4f331b | 2013-02-06 21:27:17 +0100 | [diff] [blame] | 3285 | uint8_t *read_data; |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3286 | size_t count; |
Markus Armbruster | 3ab651f | 2013-02-06 21:27:15 +0100 | [diff] [blame] | 3287 | char *data; |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3288 | |
| 3289 | chr = qemu_chr_find(device); |
| 3290 | if (!chr) { |
Markus Armbruster | 1a69278 | 2013-02-06 21:27:16 +0100 | [diff] [blame] | 3291 | error_setg(errp, "Device '%s' not found", device); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3292 | return NULL; |
| 3293 | } |
| 3294 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3295 | if (!chr_is_ringbuf(chr)) { |
| 3296 | error_setg(errp,"%s is not a ringbuf device", device); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3297 | return NULL; |
| 3298 | } |
| 3299 | |
| 3300 | if (size <= 0) { |
| 3301 | error_setg(errp, "size must be greater than zero"); |
| 3302 | return NULL; |
| 3303 | } |
| 3304 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3305 | count = ringbuf_count(chr); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3306 | size = size > count ? count : size; |
Markus Armbruster | 44f3bcd | 2013-02-06 21:27:20 +0100 | [diff] [blame] | 3307 | read_data = g_malloc(size + 1); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3308 | |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3309 | ringbuf_chr_read(chr, read_data, size); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3310 | |
| 3311 | if (has_format && (format == DATA_FORMAT_BASE64)) { |
Markus Armbruster | 3ab651f | 2013-02-06 21:27:15 +0100 | [diff] [blame] | 3312 | data = g_base64_encode(read_data, size); |
Markus Armbruster | 13289fb | 2013-02-06 21:27:18 +0100 | [diff] [blame] | 3313 | g_free(read_data); |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3314 | } else { |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 3315 | /* |
| 3316 | * FIXME should read only complete, valid UTF-8 characters up |
| 3317 | * to @size bytes. Invalid sequences should be replaced by a |
| 3318 | * suitable replacement character. Except when (and only |
| 3319 | * when) ring buffer lost characters since last read, initial |
| 3320 | * continuation characters should be dropped. |
| 3321 | */ |
Markus Armbruster | 44f3bcd | 2013-02-06 21:27:20 +0100 | [diff] [blame] | 3322 | read_data[size] = 0; |
Markus Armbruster | 3ab651f | 2013-02-06 21:27:15 +0100 | [diff] [blame] | 3323 | data = (char *)read_data; |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3324 | } |
| 3325 | |
Markus Armbruster | 3ab651f | 2013-02-06 21:27:15 +0100 | [diff] [blame] | 3326 | return data; |
Lei Li | 49b6d72 | 2013-01-25 00:03:21 +0800 | [diff] [blame] | 3327 | } |
| 3328 | |
Gerd Hoffmann | 3352163 | 2009-12-08 13:11:49 +0100 | [diff] [blame] | 3329 | QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename) |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3330 | { |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3331 | char host[65], port[33], width[8], height[8]; |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3332 | int pos; |
Gerd Hoffmann | 7d31544 | 2009-09-10 10:58:36 +0200 | [diff] [blame] | 3333 | const char *p; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3334 | QemuOpts *opts; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 3335 | Error *local_err = NULL; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3336 | |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 3337 | opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 3338 | if (local_err) { |
Markus Armbruster | 3339488 | 2015-02-10 15:21:26 +0100 | [diff] [blame] | 3339 | error_report_err(local_err); |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3340 | return NULL; |
Luiz Capitulino | 8be7e7e | 2012-03-20 15:51:57 -0300 | [diff] [blame] | 3341 | } |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3342 | |
Gerd Hoffmann | 7591c5c | 2009-09-10 10:58:50 +0200 | [diff] [blame] | 3343 | if (strstart(filename, "mon:", &p)) { |
| 3344 | filename = p; |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3345 | qemu_opt_set(opts, "mux", "on", &error_abort); |
Paolo Bonzini | 02c4bdf | 2013-07-03 20:29:45 +0400 | [diff] [blame] | 3346 | if (strcmp(filename, "stdio") == 0) { |
| 3347 | /* Monitor is muxed to stdio: do not exit on Ctrl+C by default |
| 3348 | * but pass it to the guest. Handle this only for compat syntax, |
| 3349 | * for -chardev syntax we have special option for this. |
| 3350 | * This is what -nographic did, redirecting+muxing serial+monitor |
| 3351 | * to stdio causing Ctrl+C to be passed to guest. */ |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3352 | qemu_opt_set(opts, "signal", "off", &error_abort); |
Paolo Bonzini | 02c4bdf | 2013-07-03 20:29:45 +0400 | [diff] [blame] | 3353 | } |
Gerd Hoffmann | 7591c5c | 2009-09-10 10:58:50 +0200 | [diff] [blame] | 3354 | } |
| 3355 | |
Gerd Hoffmann | f0457e8 | 2009-09-10 10:58:45 +0200 | [diff] [blame] | 3356 | if (strcmp(filename, "null") == 0 || |
| 3357 | strcmp(filename, "pty") == 0 || |
| 3358 | strcmp(filename, "msmouse") == 0 || |
Gerd Hoffmann | dc1c21e | 2009-09-10 10:58:46 +0200 | [diff] [blame] | 3359 | strcmp(filename, "braille") == 0 || |
Paolo Bonzini | 5692399 | 2014-07-11 09:44:26 +0200 | [diff] [blame] | 3360 | strcmp(filename, "testdev") == 0 || |
Gerd Hoffmann | f0457e8 | 2009-09-10 10:58:45 +0200 | [diff] [blame] | 3361 | strcmp(filename, "stdio") == 0) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3362 | qemu_opt_set(opts, "backend", filename, &error_abort); |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3363 | return opts; |
| 3364 | } |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3365 | if (strstart(filename, "vc", &p)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3366 | qemu_opt_set(opts, "backend", "vc", &error_abort); |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3367 | if (*p == ':') { |
Stefan Weil | 49aa405 | 2013-09-30 23:04:49 +0200 | [diff] [blame] | 3368 | if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) { |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3369 | /* pixels */ |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3370 | qemu_opt_set(opts, "width", width, &error_abort); |
| 3371 | qemu_opt_set(opts, "height", height, &error_abort); |
Stefan Weil | 49aa405 | 2013-09-30 23:04:49 +0200 | [diff] [blame] | 3372 | } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) { |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3373 | /* chars */ |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3374 | qemu_opt_set(opts, "cols", width, &error_abort); |
| 3375 | qemu_opt_set(opts, "rows", height, &error_abort); |
Gerd Hoffmann | 6ea314d | 2009-09-10 10:58:49 +0200 | [diff] [blame] | 3376 | } else { |
| 3377 | goto fail; |
| 3378 | } |
| 3379 | } |
| 3380 | return opts; |
| 3381 | } |
Gerd Hoffmann | d6c983c | 2009-09-10 10:58:47 +0200 | [diff] [blame] | 3382 | if (strcmp(filename, "con:") == 0) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3383 | qemu_opt_set(opts, "backend", "console", &error_abort); |
Gerd Hoffmann | d6c983c | 2009-09-10 10:58:47 +0200 | [diff] [blame] | 3384 | return opts; |
| 3385 | } |
Gerd Hoffmann | 48b7649 | 2009-09-10 10:58:48 +0200 | [diff] [blame] | 3386 | if (strstart(filename, "COM", NULL)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3387 | qemu_opt_set(opts, "backend", "serial", &error_abort); |
| 3388 | qemu_opt_set(opts, "path", filename, &error_abort); |
Gerd Hoffmann | 48b7649 | 2009-09-10 10:58:48 +0200 | [diff] [blame] | 3389 | return opts; |
| 3390 | } |
Gerd Hoffmann | 7d31544 | 2009-09-10 10:58:36 +0200 | [diff] [blame] | 3391 | if (strstart(filename, "file:", &p)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3392 | qemu_opt_set(opts, "backend", "file", &error_abort); |
| 3393 | qemu_opt_set(opts, "path", p, &error_abort); |
Gerd Hoffmann | 7d31544 | 2009-09-10 10:58:36 +0200 | [diff] [blame] | 3394 | return opts; |
| 3395 | } |
| 3396 | if (strstart(filename, "pipe:", &p)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3397 | qemu_opt_set(opts, "backend", "pipe", &error_abort); |
| 3398 | qemu_opt_set(opts, "path", p, &error_abort); |
Gerd Hoffmann | 7d31544 | 2009-09-10 10:58:36 +0200 | [diff] [blame] | 3399 | return opts; |
| 3400 | } |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3401 | if (strstart(filename, "tcp:", &p) || |
| 3402 | strstart(filename, "telnet:", &p)) { |
| 3403 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 3404 | host[0] = 0; |
| 3405 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) |
| 3406 | goto fail; |
| 3407 | } |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3408 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
| 3409 | qemu_opt_set(opts, "host", host, &error_abort); |
| 3410 | qemu_opt_set(opts, "port", port, &error_abort); |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3411 | if (p[pos] == ',') { |
Markus Armbruster | dc523cd | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 3412 | qemu_opts_do_parse(opts, p+pos+1, NULL, &local_err); |
| 3413 | if (local_err) { |
| 3414 | error_report_err(local_err); |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3415 | goto fail; |
Markus Armbruster | dc523cd | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 3416 | } |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3417 | } |
| 3418 | if (strstart(filename, "telnet:", &p)) |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3419 | qemu_opt_set(opts, "telnet", "on", &error_abort); |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3420 | return opts; |
| 3421 | } |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3422 | if (strstart(filename, "udp:", &p)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3423 | qemu_opt_set(opts, "backend", "udp", &error_abort); |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3424 | if (sscanf(p, "%64[^:]:%32[^@,]%n", host, port, &pos) < 2) { |
| 3425 | host[0] = 0; |
Jan Kiszka | 39324ca | 2010-03-07 11:28:48 +0100 | [diff] [blame] | 3426 | if (sscanf(p, ":%32[^@,]%n", port, &pos) < 1) { |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3427 | goto fail; |
| 3428 | } |
| 3429 | } |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3430 | qemu_opt_set(opts, "host", host, &error_abort); |
| 3431 | qemu_opt_set(opts, "port", port, &error_abort); |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3432 | if (p[pos] == '@') { |
| 3433 | p += pos + 1; |
| 3434 | if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) { |
| 3435 | host[0] = 0; |
| 3436 | if (sscanf(p, ":%32[^,]%n", port, &pos) < 1) { |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3437 | goto fail; |
| 3438 | } |
| 3439 | } |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3440 | qemu_opt_set(opts, "localaddr", host, &error_abort); |
| 3441 | qemu_opt_set(opts, "localport", port, &error_abort); |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3442 | } |
| 3443 | return opts; |
| 3444 | } |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3445 | if (strstart(filename, "unix:", &p)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3446 | qemu_opt_set(opts, "backend", "socket", &error_abort); |
Markus Armbruster | dc523cd | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 3447 | qemu_opts_do_parse(opts, p, "path", &local_err); |
| 3448 | if (local_err) { |
| 3449 | error_report_err(local_err); |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3450 | goto fail; |
Markus Armbruster | dc523cd | 2015-02-12 18:37:11 +0100 | [diff] [blame] | 3451 | } |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3452 | return opts; |
| 3453 | } |
Gerd Hoffmann | 48b7649 | 2009-09-10 10:58:48 +0200 | [diff] [blame] | 3454 | if (strstart(filename, "/dev/parport", NULL) || |
| 3455 | strstart(filename, "/dev/ppi", NULL)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3456 | qemu_opt_set(opts, "backend", "parport", &error_abort); |
| 3457 | qemu_opt_set(opts, "path", filename, &error_abort); |
Gerd Hoffmann | 48b7649 | 2009-09-10 10:58:48 +0200 | [diff] [blame] | 3458 | return opts; |
| 3459 | } |
| 3460 | if (strstart(filename, "/dev/", NULL)) { |
Markus Armbruster | f43e47d | 2015-02-12 17:52:20 +0100 | [diff] [blame] | 3461 | qemu_opt_set(opts, "backend", "tty", &error_abort); |
| 3462 | qemu_opt_set(opts, "path", filename, &error_abort); |
Gerd Hoffmann | 48b7649 | 2009-09-10 10:58:48 +0200 | [diff] [blame] | 3463 | return opts; |
| 3464 | } |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3465 | |
Gerd Hoffmann | aeb2c47 | 2009-09-10 10:58:42 +0200 | [diff] [blame] | 3466 | fail: |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3467 | qemu_opts_del(opts); |
| 3468 | return NULL; |
| 3469 | } |
| 3470 | |
Gerd Hoffmann | 846e2e4 | 2013-02-21 12:07:14 +0100 | [diff] [blame] | 3471 | static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend, |
| 3472 | Error **errp) |
| 3473 | { |
| 3474 | const char *path = qemu_opt_get(opts, "path"); |
| 3475 | |
| 3476 | if (path == NULL) { |
| 3477 | error_setg(errp, "chardev: file: no filename given"); |
| 3478 | return; |
| 3479 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3480 | backend->u.file = g_new0(ChardevFile, 1); |
| 3481 | backend->u.file->out = g_strdup(path); |
Gerd Hoffmann | 846e2e4 | 2013-02-21 12:07:14 +0100 | [diff] [blame] | 3482 | } |
| 3483 | |
Gerd Hoffmann | 7c35803 | 2013-02-21 12:34:58 +0100 | [diff] [blame] | 3484 | static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend, |
| 3485 | Error **errp) |
| 3486 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3487 | backend->u.stdio = g_new0(ChardevStdio, 1); |
| 3488 | backend->u.stdio->has_signal = true; |
| 3489 | backend->u.stdio->signal = qemu_opt_get_bool(opts, "signal", true); |
Gerd Hoffmann | 7c35803 | 2013-02-21 12:34:58 +0100 | [diff] [blame] | 3490 | } |
| 3491 | |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 3492 | #ifdef HAVE_CHARDEV_SERIAL |
Gerd Hoffmann | 0f1cb51 | 2013-02-22 15:48:05 +0100 | [diff] [blame] | 3493 | static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, |
| 3494 | Error **errp) |
| 3495 | { |
| 3496 | const char *device = qemu_opt_get(opts, "path"); |
| 3497 | |
| 3498 | if (device == NULL) { |
| 3499 | error_setg(errp, "chardev: serial/tty: no device path given"); |
| 3500 | return; |
| 3501 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3502 | backend->u.serial = g_new0(ChardevHostdev, 1); |
| 3503 | backend->u.serial->device = g_strdup(device); |
Gerd Hoffmann | 0f1cb51 | 2013-02-22 15:48:05 +0100 | [diff] [blame] | 3504 | } |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 3505 | #endif |
Gerd Hoffmann | 0f1cb51 | 2013-02-22 15:48:05 +0100 | [diff] [blame] | 3506 | |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 3507 | #ifdef HAVE_CHARDEV_PARPORT |
Gerd Hoffmann | dc37509 | 2013-02-22 16:17:01 +0100 | [diff] [blame] | 3508 | static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend, |
| 3509 | Error **errp) |
| 3510 | { |
| 3511 | const char *device = qemu_opt_get(opts, "path"); |
| 3512 | |
| 3513 | if (device == NULL) { |
| 3514 | error_setg(errp, "chardev: parallel: no device path given"); |
| 3515 | return; |
| 3516 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3517 | backend->u.parallel = g_new0(ChardevHostdev, 1); |
| 3518 | backend->u.parallel->device = g_strdup(device); |
Gerd Hoffmann | dc37509 | 2013-02-22 16:17:01 +0100 | [diff] [blame] | 3519 | } |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 3520 | #endif |
Gerd Hoffmann | dc37509 | 2013-02-22 16:17:01 +0100 | [diff] [blame] | 3521 | |
Gerd Hoffmann | 548cbb3 | 2013-02-25 11:50:55 +0100 | [diff] [blame] | 3522 | static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend, |
| 3523 | Error **errp) |
| 3524 | { |
| 3525 | const char *device = qemu_opt_get(opts, "path"); |
| 3526 | |
| 3527 | if (device == NULL) { |
| 3528 | error_setg(errp, "chardev: pipe: no device path given"); |
| 3529 | return; |
| 3530 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3531 | backend->u.pipe = g_new0(ChardevHostdev, 1); |
| 3532 | backend->u.pipe->device = g_strdup(device); |
Gerd Hoffmann | 548cbb3 | 2013-02-25 11:50:55 +0100 | [diff] [blame] | 3533 | } |
| 3534 | |
Markus Armbruster | 4f57378 | 2013-07-26 16:44:32 +0200 | [diff] [blame] | 3535 | static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend, |
| 3536 | Error **errp) |
Gerd Hoffmann | 1da48c6 | 2013-02-26 16:21:11 +0100 | [diff] [blame] | 3537 | { |
| 3538 | int val; |
| 3539 | |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3540 | backend->u.ringbuf = g_new0(ChardevRingbuf, 1); |
Gerd Hoffmann | 1da48c6 | 2013-02-26 16:21:11 +0100 | [diff] [blame] | 3541 | |
Markus Armbruster | 0f95305 | 2013-06-27 16:22:07 +0200 | [diff] [blame] | 3542 | val = qemu_opt_get_size(opts, "size", 0); |
Gerd Hoffmann | 1da48c6 | 2013-02-26 16:21:11 +0100 | [diff] [blame] | 3543 | if (val != 0) { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3544 | backend->u.ringbuf->has_size = true; |
| 3545 | backend->u.ringbuf->size = val; |
Gerd Hoffmann | 1da48c6 | 2013-02-26 16:21:11 +0100 | [diff] [blame] | 3546 | } |
| 3547 | } |
| 3548 | |
Gerd Hoffmann | bb6fb7c | 2013-06-24 08:39:54 +0200 | [diff] [blame] | 3549 | static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend, |
| 3550 | Error **errp) |
| 3551 | { |
| 3552 | const char *chardev = qemu_opt_get(opts, "chardev"); |
| 3553 | |
| 3554 | if (chardev == NULL) { |
| 3555 | error_setg(errp, "chardev: mux: no chardev given"); |
| 3556 | return; |
| 3557 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3558 | backend->u.mux = g_new0(ChardevMux, 1); |
| 3559 | backend->u.mux->chardev = g_strdup(chardev); |
Gerd Hoffmann | bb6fb7c | 2013-06-24 08:39:54 +0200 | [diff] [blame] | 3560 | } |
| 3561 | |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3562 | static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend, |
| 3563 | Error **errp) |
| 3564 | { |
| 3565 | bool is_listen = qemu_opt_get_bool(opts, "server", false); |
| 3566 | bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true); |
| 3567 | bool is_telnet = qemu_opt_get_bool(opts, "telnet", false); |
| 3568 | bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true); |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 3569 | int64_t reconnect = qemu_opt_get_number(opts, "reconnect", 0); |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3570 | const char *path = qemu_opt_get(opts, "path"); |
| 3571 | const char *host = qemu_opt_get(opts, "host"); |
| 3572 | const char *port = qemu_opt_get(opts, "port"); |
| 3573 | SocketAddress *addr; |
| 3574 | |
| 3575 | if (!path) { |
| 3576 | if (!host) { |
| 3577 | error_setg(errp, "chardev: socket: no host given"); |
| 3578 | return; |
| 3579 | } |
| 3580 | if (!port) { |
| 3581 | error_setg(errp, "chardev: socket: no port given"); |
| 3582 | return; |
| 3583 | } |
| 3584 | } |
| 3585 | |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3586 | backend->u.socket = g_new0(ChardevSocket, 1); |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3587 | |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3588 | backend->u.socket->has_nodelay = true; |
| 3589 | backend->u.socket->nodelay = do_nodelay; |
| 3590 | backend->u.socket->has_server = true; |
| 3591 | backend->u.socket->server = is_listen; |
| 3592 | backend->u.socket->has_telnet = true; |
| 3593 | backend->u.socket->telnet = is_telnet; |
| 3594 | backend->u.socket->has_wait = true; |
| 3595 | backend->u.socket->wait = is_waitconnect; |
| 3596 | backend->u.socket->has_reconnect = true; |
| 3597 | backend->u.socket->reconnect = reconnect; |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3598 | |
| 3599 | addr = g_new0(SocketAddress, 1); |
| 3600 | if (path) { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3601 | addr->type = SOCKET_ADDRESS_KIND_UNIX; |
| 3602 | addr->u.q_unix = g_new0(UnixSocketAddress, 1); |
| 3603 | addr->u.q_unix->path = g_strdup(path); |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3604 | } else { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3605 | addr->type = SOCKET_ADDRESS_KIND_INET; |
| 3606 | addr->u.inet = g_new0(InetSocketAddress, 1); |
| 3607 | addr->u.inet->host = g_strdup(host); |
| 3608 | addr->u.inet->port = g_strdup(port); |
| 3609 | addr->u.inet->has_to = qemu_opt_get(opts, "to"); |
| 3610 | addr->u.inet->to = qemu_opt_get_number(opts, "to", 0); |
| 3611 | addr->u.inet->has_ipv4 = qemu_opt_get(opts, "ipv4"); |
| 3612 | addr->u.inet->ipv4 = qemu_opt_get_bool(opts, "ipv4", 0); |
| 3613 | addr->u.inet->has_ipv6 = qemu_opt_get(opts, "ipv6"); |
| 3614 | addr->u.inet->ipv6 = qemu_opt_get_bool(opts, "ipv6", 0); |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3615 | } |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3616 | backend->u.socket->addr = addr; |
Peter Maydell | dafd325 | 2014-09-02 11:24:13 +0100 | [diff] [blame] | 3617 | } |
| 3618 | |
Peter Maydell | 90a14bf | 2014-09-02 11:24:15 +0100 | [diff] [blame] | 3619 | static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend, |
| 3620 | Error **errp) |
| 3621 | { |
| 3622 | const char *host = qemu_opt_get(opts, "host"); |
| 3623 | const char *port = qemu_opt_get(opts, "port"); |
| 3624 | const char *localaddr = qemu_opt_get(opts, "localaddr"); |
| 3625 | const char *localport = qemu_opt_get(opts, "localport"); |
| 3626 | bool has_local = false; |
| 3627 | SocketAddress *addr; |
| 3628 | |
| 3629 | if (host == NULL || strlen(host) == 0) { |
| 3630 | host = "localhost"; |
| 3631 | } |
| 3632 | if (port == NULL || strlen(port) == 0) { |
| 3633 | error_setg(errp, "chardev: udp: remote port not specified"); |
| 3634 | return; |
| 3635 | } |
| 3636 | if (localport == NULL || strlen(localport) == 0) { |
| 3637 | localport = "0"; |
| 3638 | } else { |
| 3639 | has_local = true; |
| 3640 | } |
| 3641 | if (localaddr == NULL || strlen(localaddr) == 0) { |
| 3642 | localaddr = ""; |
| 3643 | } else { |
| 3644 | has_local = true; |
| 3645 | } |
| 3646 | |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3647 | backend->u.udp = g_new0(ChardevUdp, 1); |
Peter Maydell | 90a14bf | 2014-09-02 11:24:15 +0100 | [diff] [blame] | 3648 | |
| 3649 | addr = g_new0(SocketAddress, 1); |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3650 | addr->type = SOCKET_ADDRESS_KIND_INET; |
| 3651 | addr->u.inet = g_new0(InetSocketAddress, 1); |
| 3652 | addr->u.inet->host = g_strdup(host); |
| 3653 | addr->u.inet->port = g_strdup(port); |
| 3654 | addr->u.inet->has_ipv4 = qemu_opt_get(opts, "ipv4"); |
| 3655 | addr->u.inet->ipv4 = qemu_opt_get_bool(opts, "ipv4", 0); |
| 3656 | addr->u.inet->has_ipv6 = qemu_opt_get(opts, "ipv6"); |
| 3657 | addr->u.inet->ipv6 = qemu_opt_get_bool(opts, "ipv6", 0); |
| 3658 | backend->u.udp->remote = addr; |
Peter Maydell | 90a14bf | 2014-09-02 11:24:15 +0100 | [diff] [blame] | 3659 | |
| 3660 | if (has_local) { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3661 | backend->u.udp->has_local = true; |
Peter Maydell | 90a14bf | 2014-09-02 11:24:15 +0100 | [diff] [blame] | 3662 | addr = g_new0(SocketAddress, 1); |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3663 | addr->type = SOCKET_ADDRESS_KIND_INET; |
| 3664 | addr->u.inet = g_new0(InetSocketAddress, 1); |
| 3665 | addr->u.inet->host = g_strdup(localaddr); |
| 3666 | addr->u.inet->port = g_strdup(localport); |
| 3667 | backend->u.udp->local = addr; |
Peter Maydell | 90a14bf | 2014-09-02 11:24:15 +0100 | [diff] [blame] | 3668 | } |
| 3669 | } |
| 3670 | |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3671 | typedef struct CharDriver { |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3672 | const char *name; |
Gerd Hoffmann | 99aec01 | 2013-06-24 08:39:52 +0200 | [diff] [blame] | 3673 | ChardevBackendKind kind; |
Gerd Hoffmann | 2c5f488 | 2013-02-21 11:39:12 +0100 | [diff] [blame] | 3674 | void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp); |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 3675 | CharDriverState *(*create)(const char *id, ChardevBackend *backend, |
| 3676 | ChardevReturn *ret, Error **errp); |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3677 | } CharDriver; |
| 3678 | |
| 3679 | static GSList *backends; |
| 3680 | |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 3681 | void register_char_driver(const char *name, ChardevBackendKind kind, |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 3682 | void (*parse)(QemuOpts *opts, ChardevBackend *backend, Error **errp), |
| 3683 | CharDriverState *(*create)(const char *id, ChardevBackend *backend, |
| 3684 | ChardevReturn *ret, Error **errp)) |
Gerd Hoffmann | 2c5f488 | 2013-02-21 11:39:12 +0100 | [diff] [blame] | 3685 | { |
| 3686 | CharDriver *s; |
| 3687 | |
| 3688 | s = g_malloc0(sizeof(*s)); |
| 3689 | s->name = g_strdup(name); |
| 3690 | s->kind = kind; |
| 3691 | s->parse = parse; |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 3692 | s->create = create; |
Gerd Hoffmann | 2c5f488 | 2013-02-21 11:39:12 +0100 | [diff] [blame] | 3693 | |
| 3694 | backends = g_slist_append(backends, s); |
| 3695 | } |
| 3696 | |
Anthony Liguori | f69554b | 2011-08-15 11:17:37 -0500 | [diff] [blame] | 3697 | CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts, |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3698 | void (*init)(struct CharDriverState *s), |
| 3699 | Error **errp) |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3700 | { |
Markus Armbruster | 0aff637 | 2014-05-19 18:57:35 +0200 | [diff] [blame] | 3701 | Error *local_err = NULL; |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3702 | CharDriver *cd; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3703 | CharDriverState *chr; |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3704 | GSList *i; |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3705 | ChardevReturn *ret = NULL; |
| 3706 | ChardevBackend *backend; |
| 3707 | const char *id = qemu_opts_id(opts); |
| 3708 | char *bid = NULL; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3709 | |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3710 | if (id == NULL) { |
Markus Armbruster | 312fd5f | 2013-02-08 21:22:16 +0100 | [diff] [blame] | 3711 | error_setg(errp, "chardev: no id specified"); |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3712 | goto err; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3713 | } |
| 3714 | |
Stefan Hajnoczi | 1bbd185 | 2011-01-22 13:07:26 +0000 | [diff] [blame] | 3715 | if (qemu_opt_get(opts, "backend") == NULL) { |
Markus Armbruster | 312fd5f | 2013-02-08 21:22:16 +0100 | [diff] [blame] | 3716 | error_setg(errp, "chardev: \"%s\" missing backend", |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3717 | qemu_opts_id(opts)); |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3718 | goto err; |
Stefan Hajnoczi | 1bbd185 | 2011-01-22 13:07:26 +0000 | [diff] [blame] | 3719 | } |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3720 | for (i = backends; i; i = i->next) { |
| 3721 | cd = i->data; |
| 3722 | |
| 3723 | if (strcmp(cd->name, qemu_opt_get(opts, "backend")) == 0) { |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3724 | break; |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3725 | } |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3726 | } |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 3727 | if (i == NULL) { |
Markus Armbruster | 312fd5f | 2013-02-08 21:22:16 +0100 | [diff] [blame] | 3728 | error_setg(errp, "chardev: backend \"%s\" not found", |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3729 | qemu_opt_get(opts, "backend")); |
Gerd Hoffmann | e668287 | 2013-06-24 08:39:51 +0200 | [diff] [blame] | 3730 | goto err; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3731 | } |
| 3732 | |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3733 | backend = g_new0(ChardevBackend, 1); |
Gerd Hoffmann | 7591c5c | 2009-09-10 10:58:50 +0200 | [diff] [blame] | 3734 | |
| 3735 | if (qemu_opt_get_bool(opts, "mux", 0)) { |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3736 | bid = g_strdup_printf("%s-base", id); |
Gerd Hoffmann | 7591c5c | 2009-09-10 10:58:50 +0200 | [diff] [blame] | 3737 | } |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3738 | |
| 3739 | chr = NULL; |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3740 | backend->type = cd->kind; |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3741 | if (cd->parse) { |
| 3742 | cd->parse(opts, backend, &local_err); |
| 3743 | if (local_err) { |
| 3744 | error_propagate(errp, local_err); |
| 3745 | goto qapi_out; |
| 3746 | } |
| 3747 | } |
| 3748 | ret = qmp_chardev_add(bid ? bid : id, backend, errp); |
| 3749 | if (!ret) { |
| 3750 | goto qapi_out; |
| 3751 | } |
| 3752 | |
| 3753 | if (bid) { |
| 3754 | qapi_free_ChardevBackend(backend); |
| 3755 | qapi_free_ChardevReturn(ret); |
| 3756 | backend = g_new0(ChardevBackend, 1); |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 3757 | backend->u.mux = g_new0(ChardevMux, 1); |
| 3758 | backend->type = CHARDEV_BACKEND_KIND_MUX; |
| 3759 | backend->u.mux->chardev = g_strdup(bid); |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3760 | ret = qmp_chardev_add(id, backend, errp); |
| 3761 | if (!ret) { |
| 3762 | chr = qemu_chr_find(bid); |
| 3763 | qemu_chr_delete(chr); |
| 3764 | chr = NULL; |
| 3765 | goto qapi_out; |
| 3766 | } |
| 3767 | } |
| 3768 | |
| 3769 | chr = qemu_chr_find(id); |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3770 | chr->opts = opts; |
Peter Maydell | a61ae7f | 2014-09-02 11:24:16 +0100 | [diff] [blame] | 3771 | |
| 3772 | qapi_out: |
| 3773 | qapi_free_ChardevBackend(backend); |
| 3774 | qapi_free_ChardevReturn(ret); |
| 3775 | g_free(bid); |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3776 | return chr; |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3777 | |
| 3778 | err: |
| 3779 | qemu_opts_del(opts); |
| 3780 | return NULL; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3781 | } |
| 3782 | |
Anthony Liguori | 27143a4 | 2011-08-15 11:17:36 -0500 | [diff] [blame] | 3783 | CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s)) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3784 | { |
| 3785 | const char *p; |
| 3786 | CharDriverState *chr; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3787 | QemuOpts *opts; |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3788 | Error *err = NULL; |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3789 | |
Gerd Hoffmann | c845f40 | 2009-09-10 10:58:52 +0200 | [diff] [blame] | 3790 | if (strstart(filename, "chardev:", &p)) { |
| 3791 | return qemu_chr_find(p); |
| 3792 | } |
| 3793 | |
Gerd Hoffmann | 191bc01 | 2009-09-10 10:58:35 +0200 | [diff] [blame] | 3794 | opts = qemu_chr_parse_compat(label, filename); |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3795 | if (!opts) |
| 3796 | return NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3797 | |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3798 | chr = qemu_chr_new_from_opts(opts, init, &err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 3799 | if (err) { |
Markus Armbruster | 565f65d | 2015-02-12 13:55:05 +0100 | [diff] [blame] | 3800 | error_report_err(err); |
Gerd Hoffmann | bd2d80b | 2012-10-15 09:28:05 +0200 | [diff] [blame] | 3801 | } |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3802 | if (chr && qemu_opt_get_bool(opts, "mux", 0)) { |
Hans de Goede | 456d606 | 2013-03-27 20:29:40 +0100 | [diff] [blame] | 3803 | qemu_chr_fe_claim_no_fail(chr); |
Gerd Hoffmann | 7e1b35b | 2009-09-10 10:58:51 +0200 | [diff] [blame] | 3804 | monitor_init(chr, MONITOR_USE_READLINE); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3805 | } |
| 3806 | return chr; |
| 3807 | } |
| 3808 | |
Anthony Liguori | 15f3151 | 2011-08-15 11:17:35 -0500 | [diff] [blame] | 3809 | void qemu_chr_fe_set_echo(struct CharDriverState *chr, bool echo) |
Paolo Bonzini | c48855e | 2010-12-23 13:42:48 +0100 | [diff] [blame] | 3810 | { |
| 3811 | if (chr->chr_set_echo) { |
| 3812 | chr->chr_set_echo(chr, echo); |
| 3813 | } |
| 3814 | } |
| 3815 | |
Hans de Goede | 8e25daa | 2013-03-26 11:07:57 +0100 | [diff] [blame] | 3816 | void qemu_chr_fe_set_open(struct CharDriverState *chr, int fe_open) |
Hans de Goede | 7c32c4f | 2011-03-24 11:12:02 +0100 | [diff] [blame] | 3817 | { |
Hans de Goede | 8e25daa | 2013-03-26 11:07:57 +0100 | [diff] [blame] | 3818 | if (chr->fe_open == fe_open) { |
Hans de Goede | c0c4bd2 | 2013-03-26 11:07:55 +0100 | [diff] [blame] | 3819 | return; |
| 3820 | } |
Hans de Goede | 8e25daa | 2013-03-26 11:07:57 +0100 | [diff] [blame] | 3821 | chr->fe_open = fe_open; |
Hans de Goede | 574b711 | 2013-03-26 11:07:58 +0100 | [diff] [blame] | 3822 | if (chr->chr_set_fe_open) { |
| 3823 | chr->chr_set_fe_open(chr, fe_open); |
Hans de Goede | 7c32c4f | 2011-03-24 11:12:02 +0100 | [diff] [blame] | 3824 | } |
| 3825 | } |
| 3826 | |
Marc-André Lureau | d61b0c9 | 2013-12-01 22:23:39 +0100 | [diff] [blame] | 3827 | void qemu_chr_fe_event(struct CharDriverState *chr, int event) |
| 3828 | { |
| 3829 | if (chr->chr_fe_event) { |
| 3830 | chr->chr_fe_event(chr, event); |
| 3831 | } |
| 3832 | } |
| 3833 | |
Kevin Wolf | 2c8a594 | 2013-03-19 13:38:09 +0100 | [diff] [blame] | 3834 | int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond, |
| 3835 | GIOFunc func, void *user_data) |
Anthony Liguori | 23673ca | 2013-03-05 23:21:23 +0530 | [diff] [blame] | 3836 | { |
| 3837 | GSource *src; |
| 3838 | guint tag; |
| 3839 | |
| 3840 | if (s->chr_add_watch == NULL) { |
| 3841 | return -ENOSYS; |
| 3842 | } |
| 3843 | |
| 3844 | src = s->chr_add_watch(s, cond); |
Paolo Bonzini | 62c339c | 2014-07-24 16:08:04 +0200 | [diff] [blame] | 3845 | if (!src) { |
| 3846 | return -EINVAL; |
| 3847 | } |
| 3848 | |
Anthony Liguori | 23673ca | 2013-03-05 23:21:23 +0530 | [diff] [blame] | 3849 | g_source_set_callback(src, (GSourceFunc)func, user_data, NULL); |
| 3850 | tag = g_source_attach(src, NULL); |
| 3851 | g_source_unref(src); |
| 3852 | |
| 3853 | return tag; |
| 3854 | } |
| 3855 | |
Hans de Goede | 44c473d | 2013-03-27 20:29:39 +0100 | [diff] [blame] | 3856 | int qemu_chr_fe_claim(CharDriverState *s) |
| 3857 | { |
| 3858 | if (s->avail_connections < 1) { |
| 3859 | return -1; |
| 3860 | } |
| 3861 | s->avail_connections--; |
| 3862 | return 0; |
| 3863 | } |
| 3864 | |
| 3865 | void qemu_chr_fe_claim_no_fail(CharDriverState *s) |
| 3866 | { |
| 3867 | if (qemu_chr_fe_claim(s) != 0) { |
| 3868 | fprintf(stderr, "%s: error chardev \"%s\" already used\n", |
| 3869 | __func__, s->label); |
| 3870 | exit(1); |
| 3871 | } |
| 3872 | } |
| 3873 | |
| 3874 | void qemu_chr_fe_release(CharDriverState *s) |
| 3875 | { |
| 3876 | s->avail_connections++; |
| 3877 | } |
| 3878 | |
Marc-André Lureau | 1ad78ea | 2015-06-22 18:20:18 +0200 | [diff] [blame] | 3879 | void qemu_chr_free(CharDriverState *chr) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3880 | { |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3881 | if (chr->chr_close) { |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3882 | chr->chr_close(chr); |
Gerd Hoffmann | 2274ae9 | 2012-10-15 09:30:59 +0200 | [diff] [blame] | 3883 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 3884 | g_free(chr->filename); |
| 3885 | g_free(chr->label); |
Markus Armbruster | 4ad6088 | 2014-12-03 11:28:02 +0100 | [diff] [blame] | 3886 | qemu_opts_del(chr->opts); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 3887 | g_free(chr); |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3888 | } |
| 3889 | |
Marc-André Lureau | 1ad78ea | 2015-06-22 18:20:18 +0200 | [diff] [blame] | 3890 | void qemu_chr_delete(CharDriverState *chr) |
| 3891 | { |
| 3892 | QTAILQ_REMOVE(&chardevs, chr, next); |
| 3893 | qemu_chr_free(chr); |
| 3894 | } |
| 3895 | |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 3896 | ChardevInfoList *qmp_query_chardev(Error **errp) |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3897 | { |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 3898 | ChardevInfoList *chr_list = NULL; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3899 | CharDriverState *chr; |
| 3900 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 3901 | QTAILQ_FOREACH(chr, &chardevs, next) { |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 3902 | ChardevInfoList *info = g_malloc0(sizeof(*info)); |
| 3903 | info->value = g_malloc0(sizeof(*info->value)); |
| 3904 | info->value->label = g_strdup(chr->label); |
| 3905 | info->value->filename = g_strdup(chr->filename); |
Laszlo Ersek | 32a97ea | 2014-06-26 17:50:03 +0200 | [diff] [blame] | 3906 | info->value->frontend_open = chr->fe_open; |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 3907 | |
| 3908 | info->next = chr_list; |
| 3909 | chr_list = info; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3910 | } |
Luiz Capitulino | 588b383 | 2009-12-10 17:16:08 -0200 | [diff] [blame] | 3911 | |
Luiz Capitulino | c5a415a | 2011-09-14 16:05:49 -0300 | [diff] [blame] | 3912 | return chr_list; |
aliguori | 6f97dba | 2008-10-31 18:49:55 +0000 | [diff] [blame] | 3913 | } |
Gerd Hoffmann | c845f40 | 2009-09-10 10:58:52 +0200 | [diff] [blame] | 3914 | |
Martin Kletzander | 77d1c3c | 2014-02-01 12:52:42 +0100 | [diff] [blame] | 3915 | ChardevBackendInfoList *qmp_query_chardev_backends(Error **errp) |
| 3916 | { |
| 3917 | ChardevBackendInfoList *backend_list = NULL; |
| 3918 | CharDriver *c = NULL; |
| 3919 | GSList *i = NULL; |
| 3920 | |
| 3921 | for (i = backends; i; i = i->next) { |
| 3922 | ChardevBackendInfoList *info = g_malloc0(sizeof(*info)); |
| 3923 | c = i->data; |
| 3924 | info->value = g_malloc0(sizeof(*info->value)); |
| 3925 | info->value->name = g_strdup(c->name); |
| 3926 | |
| 3927 | info->next = backend_list; |
| 3928 | backend_list = info; |
| 3929 | } |
| 3930 | |
| 3931 | return backend_list; |
| 3932 | } |
| 3933 | |
Gerd Hoffmann | c845f40 | 2009-09-10 10:58:52 +0200 | [diff] [blame] | 3934 | CharDriverState *qemu_chr_find(const char *name) |
| 3935 | { |
| 3936 | CharDriverState *chr; |
| 3937 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 3938 | QTAILQ_FOREACH(chr, &chardevs, next) { |
Gerd Hoffmann | c845f40 | 2009-09-10 10:58:52 +0200 | [diff] [blame] | 3939 | if (strcmp(chr->label, name) != 0) |
| 3940 | continue; |
| 3941 | return chr; |
| 3942 | } |
| 3943 | return NULL; |
| 3944 | } |
Anthony Liguori | 0beb494 | 2011-12-22 15:29:25 -0600 | [diff] [blame] | 3945 | |
| 3946 | /* Get a character (serial) device interface. */ |
| 3947 | CharDriverState *qemu_char_get_next_serial(void) |
| 3948 | { |
| 3949 | static int next_serial; |
Hans de Goede | 456d606 | 2013-03-27 20:29:40 +0100 | [diff] [blame] | 3950 | CharDriverState *chr; |
Anthony Liguori | 0beb494 | 2011-12-22 15:29:25 -0600 | [diff] [blame] | 3951 | |
| 3952 | /* FIXME: This function needs to go away: use chardev properties! */ |
Hans de Goede | 456d606 | 2013-03-27 20:29:40 +0100 | [diff] [blame] | 3953 | |
| 3954 | while (next_serial < MAX_SERIAL_PORTS && serial_hds[next_serial]) { |
| 3955 | chr = serial_hds[next_serial++]; |
| 3956 | qemu_chr_fe_claim_no_fail(chr); |
| 3957 | return chr; |
| 3958 | } |
| 3959 | return NULL; |
Anthony Liguori | 0beb494 | 2011-12-22 15:29:25 -0600 | [diff] [blame] | 3960 | } |
| 3961 | |
Paolo Bonzini | 4d45457 | 2012-11-26 16:03:42 +0100 | [diff] [blame] | 3962 | QemuOptsList qemu_chardev_opts = { |
| 3963 | .name = "chardev", |
| 3964 | .implied_opt_name = "backend", |
| 3965 | .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
| 3966 | .desc = { |
| 3967 | { |
| 3968 | .name = "backend", |
| 3969 | .type = QEMU_OPT_STRING, |
| 3970 | },{ |
| 3971 | .name = "path", |
| 3972 | .type = QEMU_OPT_STRING, |
| 3973 | },{ |
| 3974 | .name = "host", |
| 3975 | .type = QEMU_OPT_STRING, |
| 3976 | },{ |
| 3977 | .name = "port", |
| 3978 | .type = QEMU_OPT_STRING, |
| 3979 | },{ |
| 3980 | .name = "localaddr", |
| 3981 | .type = QEMU_OPT_STRING, |
| 3982 | },{ |
| 3983 | .name = "localport", |
| 3984 | .type = QEMU_OPT_STRING, |
| 3985 | },{ |
| 3986 | .name = "to", |
| 3987 | .type = QEMU_OPT_NUMBER, |
| 3988 | },{ |
| 3989 | .name = "ipv4", |
| 3990 | .type = QEMU_OPT_BOOL, |
| 3991 | },{ |
| 3992 | .name = "ipv6", |
| 3993 | .type = QEMU_OPT_BOOL, |
| 3994 | },{ |
| 3995 | .name = "wait", |
| 3996 | .type = QEMU_OPT_BOOL, |
| 3997 | },{ |
| 3998 | .name = "server", |
| 3999 | .type = QEMU_OPT_BOOL, |
| 4000 | },{ |
| 4001 | .name = "delay", |
| 4002 | .type = QEMU_OPT_BOOL, |
| 4003 | },{ |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4004 | .name = "reconnect", |
| 4005 | .type = QEMU_OPT_NUMBER, |
| 4006 | },{ |
Paolo Bonzini | 4d45457 | 2012-11-26 16:03:42 +0100 | [diff] [blame] | 4007 | .name = "telnet", |
| 4008 | .type = QEMU_OPT_BOOL, |
| 4009 | },{ |
| 4010 | .name = "width", |
| 4011 | .type = QEMU_OPT_NUMBER, |
| 4012 | },{ |
| 4013 | .name = "height", |
| 4014 | .type = QEMU_OPT_NUMBER, |
| 4015 | },{ |
| 4016 | .name = "cols", |
| 4017 | .type = QEMU_OPT_NUMBER, |
| 4018 | },{ |
| 4019 | .name = "rows", |
| 4020 | .type = QEMU_OPT_NUMBER, |
| 4021 | },{ |
| 4022 | .name = "mux", |
| 4023 | .type = QEMU_OPT_BOOL, |
| 4024 | },{ |
| 4025 | .name = "signal", |
| 4026 | .type = QEMU_OPT_BOOL, |
| 4027 | },{ |
| 4028 | .name = "name", |
| 4029 | .type = QEMU_OPT_STRING, |
| 4030 | },{ |
| 4031 | .name = "debug", |
| 4032 | .type = QEMU_OPT_NUMBER, |
Lei Li | 51767e7 | 2013-01-25 00:03:19 +0800 | [diff] [blame] | 4033 | },{ |
Markus Armbruster | 3949e59 | 2013-02-06 21:27:24 +0100 | [diff] [blame] | 4034 | .name = "size", |
Markus Armbruster | de1cc36 | 2013-02-06 21:27:25 +0100 | [diff] [blame] | 4035 | .type = QEMU_OPT_SIZE, |
Gerd Hoffmann | bb6fb7c | 2013-06-24 08:39:54 +0200 | [diff] [blame] | 4036 | },{ |
| 4037 | .name = "chardev", |
| 4038 | .type = QEMU_OPT_STRING, |
Paolo Bonzini | 4d45457 | 2012-11-26 16:03:42 +0100 | [diff] [blame] | 4039 | }, |
| 4040 | { /* end of list */ } |
| 4041 | }, |
| 4042 | }; |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4043 | |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4044 | #ifdef _WIN32 |
| 4045 | |
Paolo Bonzini | fd5b036 | 2015-09-29 15:06:02 +0200 | [diff] [blame] | 4046 | static CharDriverState *qmp_chardev_open_file(const char *id, |
| 4047 | ChardevBackend *backend, |
| 4048 | ChardevReturn *ret, |
| 4049 | Error **errp) |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4050 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4051 | ChardevFile *file = backend->u.file; |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4052 | HANDLE out; |
| 4053 | |
Gerd Hoffmann | e859eda | 2013-06-24 08:39:47 +0200 | [diff] [blame] | 4054 | if (file->has_in) { |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4055 | error_setg(errp, "input file not supported"); |
| 4056 | return NULL; |
| 4057 | } |
| 4058 | |
| 4059 | out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL, |
| 4060 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
| 4061 | if (out == INVALID_HANDLE_VALUE) { |
| 4062 | error_setg(errp, "open %s failed", file->out); |
| 4063 | return NULL; |
| 4064 | } |
| 4065 | return qemu_chr_open_win_file(out); |
| 4066 | } |
| 4067 | |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4068 | static CharDriverState *qmp_chardev_open_serial(const char *id, |
| 4069 | ChardevBackend *backend, |
| 4070 | ChardevReturn *ret, |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4071 | Error **errp) |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 4072 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4073 | ChardevHostdev *serial = backend->u.serial; |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4074 | return qemu_chr_open_win_path(serial->device, errp); |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4075 | } |
| 4076 | |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4077 | #else /* WIN32 */ |
| 4078 | |
| 4079 | static int qmp_chardev_open_file_source(char *src, int flags, |
| 4080 | Error **errp) |
| 4081 | { |
| 4082 | int fd = -1; |
| 4083 | |
| 4084 | TFR(fd = qemu_open(src, flags, 0666)); |
| 4085 | if (fd == -1) { |
Gerd Hoffmann | 20c3976 | 2013-06-24 08:39:48 +0200 | [diff] [blame] | 4086 | error_setg_file_open(errp, errno, src); |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4087 | } |
| 4088 | return fd; |
| 4089 | } |
| 4090 | |
Paolo Bonzini | fd5b036 | 2015-09-29 15:06:02 +0200 | [diff] [blame] | 4091 | static CharDriverState *qmp_chardev_open_file(const char *id, |
| 4092 | ChardevBackend *backend, |
| 4093 | ChardevReturn *ret, |
| 4094 | Error **errp) |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4095 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4096 | ChardevFile *file = backend->u.file; |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4097 | int flags, in = -1, out; |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4098 | |
| 4099 | flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY; |
| 4100 | out = qmp_chardev_open_file_source(file->out, flags, errp); |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4101 | if (out < 0) { |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4102 | return NULL; |
| 4103 | } |
| 4104 | |
Gerd Hoffmann | e859eda | 2013-06-24 08:39:47 +0200 | [diff] [blame] | 4105 | if (file->has_in) { |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4106 | flags = O_RDONLY; |
| 4107 | in = qmp_chardev_open_file_source(file->in, flags, errp); |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4108 | if (in < 0) { |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4109 | qemu_close(out); |
| 4110 | return NULL; |
| 4111 | } |
| 4112 | } |
| 4113 | |
| 4114 | return qemu_chr_open_fd(in, out); |
| 4115 | } |
| 4116 | |
Paolo Bonzini | d809ab9 | 2015-10-12 09:46:23 +0200 | [diff] [blame] | 4117 | #ifdef HAVE_CHARDEV_SERIAL |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4118 | static CharDriverState *qmp_chardev_open_serial(const char *id, |
| 4119 | ChardevBackend *backend, |
| 4120 | ChardevReturn *ret, |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4121 | Error **errp) |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 4122 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4123 | ChardevHostdev *serial = backend->u.serial; |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4124 | int fd; |
| 4125 | |
| 4126 | fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4127 | if (fd < 0) { |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 4128 | return NULL; |
| 4129 | } |
Stefan Hajnoczi | f9e8cac | 2013-03-27 10:10:43 +0100 | [diff] [blame] | 4130 | qemu_set_nonblock(fd); |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4131 | return qemu_chr_open_tty_fd(fd); |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4132 | } |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4133 | #endif |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4134 | |
Paolo Bonzini | d809ab9 | 2015-10-12 09:46:23 +0200 | [diff] [blame] | 4135 | #ifdef HAVE_CHARDEV_PARPORT |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 4136 | static CharDriverState *qmp_chardev_open_parallel(const char *id, |
| 4137 | ChardevBackend *backend, |
| 4138 | ChardevReturn *ret, |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4139 | Error **errp) |
| 4140 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4141 | ChardevHostdev *parallel = backend->u.parallel; |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4142 | int fd; |
| 4143 | |
| 4144 | fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp); |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4145 | if (fd < 0) { |
Markus Armbruster | d36b2b9 | 2013-02-13 15:54:16 +0100 | [diff] [blame] | 4146 | return NULL; |
| 4147 | } |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 4148 | return qemu_chr_open_pp_fd(fd, errp); |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 4149 | } |
Paolo Bonzini | d809ab9 | 2015-10-12 09:46:23 +0200 | [diff] [blame] | 4150 | #endif |
Gerd Hoffmann | d59044e | 2012-12-19 13:50:29 +0100 | [diff] [blame] | 4151 | |
Gerd Hoffmann | ffbdbe5 | 2012-12-19 13:13:57 +0100 | [diff] [blame] | 4152 | #endif /* WIN32 */ |
| 4153 | |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 4154 | static void socket_try_connect(CharDriverState *chr) |
| 4155 | { |
| 4156 | Error *err = NULL; |
| 4157 | |
| 4158 | if (!qemu_chr_open_socket_fd(chr, &err)) { |
| 4159 | check_report_connect_error(chr, err); |
| 4160 | } |
| 4161 | } |
| 4162 | |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4163 | static gboolean socket_reconnect_timeout(gpointer opaque) |
| 4164 | { |
| 4165 | CharDriverState *chr = opaque; |
| 4166 | TCPCharDriver *s = chr->opaque; |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4167 | |
| 4168 | s->reconnect_timer = 0; |
| 4169 | |
| 4170 | if (chr->be_open) { |
| 4171 | return false; |
| 4172 | } |
| 4173 | |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 4174 | socket_try_connect(chr); |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4175 | |
| 4176 | return false; |
| 4177 | } |
| 4178 | |
Paolo Bonzini | dbba8d1 | 2015-09-29 15:15:53 +0200 | [diff] [blame] | 4179 | static CharDriverState *qmp_chardev_open_socket(const char *id, |
| 4180 | ChardevBackend *backend, |
| 4181 | ChardevReturn *ret, |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4182 | Error **errp) |
| 4183 | { |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4184 | CharDriverState *chr; |
| 4185 | TCPCharDriver *s; |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4186 | ChardevSocket *sock = backend->u.socket; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4187 | SocketAddress *addr = sock->addr; |
| 4188 | bool do_nodelay = sock->has_nodelay ? sock->nodelay : false; |
| 4189 | bool is_listen = sock->has_server ? sock->server : true; |
| 4190 | bool is_telnet = sock->has_telnet ? sock->telnet : false; |
| 4191 | bool is_waitconnect = sock->has_wait ? sock->wait : false; |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4192 | int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0; |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4193 | |
| 4194 | chr = qemu_chr_alloc(); |
Markus Armbruster | 2d528d4 | 2015-09-14 13:54:03 +0200 | [diff] [blame] | 4195 | s = g_new0(TCPCharDriver, 1); |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4196 | |
| 4197 | s->fd = -1; |
| 4198 | s->listen_fd = -1; |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4199 | s->is_unix = addr->type == SOCKET_ADDRESS_KIND_UNIX; |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 4200 | s->is_listen = is_listen; |
| 4201 | s->is_telnet = is_telnet; |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4202 | s->do_nodelay = do_nodelay; |
Corey Minyard | cfb429c | 2014-10-02 11:17:35 -0500 | [diff] [blame] | 4203 | qapi_copy_SocketAddress(&s->addr, sock->addr); |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4204 | |
| 4205 | chr->opaque = s; |
| 4206 | chr->chr_write = tcp_chr_write; |
| 4207 | chr->chr_sync_read = tcp_chr_sync_read; |
| 4208 | chr->chr_close = tcp_chr_close; |
| 4209 | chr->get_msgfds = tcp_get_msgfds; |
| 4210 | chr->set_msgfds = tcp_set_msgfds; |
| 4211 | chr->chr_add_client = tcp_chr_add_client; |
| 4212 | chr->chr_add_watch = tcp_chr_add_watch; |
| 4213 | chr->chr_update_read_handler = tcp_chr_update_read_handler; |
| 4214 | /* be isn't opened until we get a connection */ |
| 4215 | chr->explicit_be_open = true; |
| 4216 | |
| 4217 | chr->filename = g_malloc(CHR_MAX_FILENAME_SIZE); |
Corey Minyard | 16cc4ff | 2014-10-02 11:17:36 -0500 | [diff] [blame] | 4218 | SocketAddress_to_str(chr->filename, CHR_MAX_FILENAME_SIZE, "disconnected:", |
| 4219 | addr, is_listen, is_telnet); |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4220 | |
| 4221 | if (is_listen) { |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4222 | if (is_telnet) { |
| 4223 | s->do_telnetopt = 1; |
| 4224 | } |
Corey Minyard | 5dd1f02 | 2014-10-02 11:17:37 -0500 | [diff] [blame] | 4225 | } else if (reconnect > 0) { |
| 4226 | s->reconnect_time = reconnect; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4227 | } |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4228 | |
Corey Minyard | 5008e5b | 2014-10-08 07:11:55 -0500 | [diff] [blame] | 4229 | if (s->reconnect_time) { |
| 4230 | socket_try_connect(chr); |
| 4231 | } else if (!qemu_chr_open_socket_fd(chr, errp)) { |
| 4232 | g_free(s); |
| 4233 | g_free(chr->filename); |
| 4234 | g_free(chr); |
| 4235 | return NULL; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4236 | } |
Corey Minyard | 43ded1a | 2014-10-02 11:17:34 -0500 | [diff] [blame] | 4237 | |
| 4238 | if (is_listen && is_waitconnect) { |
| 4239 | fprintf(stderr, "QEMU waiting for connection on: %s\n", |
| 4240 | chr->filename); |
| 4241 | tcp_chr_accept(s->listen_chan, G_IO_IN, chr); |
| 4242 | qemu_set_nonblock(s->listen_fd); |
| 4243 | } |
| 4244 | |
| 4245 | return chr; |
Gerd Hoffmann | f6bd5d6 | 2012-12-20 13:53:12 +0100 | [diff] [blame] | 4246 | } |
| 4247 | |
Paolo Bonzini | e79b80d | 2015-09-29 15:17:20 +0200 | [diff] [blame] | 4248 | static CharDriverState *qmp_chardev_open_udp(const char *id, |
| 4249 | ChardevBackend *backend, |
| 4250 | ChardevReturn *ret, |
Lei Li | 08d0ab3 | 2013-05-20 14:51:03 +0800 | [diff] [blame] | 4251 | Error **errp) |
Gerd Hoffmann | 3ecc059 | 2013-02-27 14:10:47 +0100 | [diff] [blame] | 4252 | { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4253 | ChardevUdp *udp = backend->u.udp; |
Gerd Hoffmann | 3ecc059 | 2013-02-27 14:10:47 +0100 | [diff] [blame] | 4254 | int fd; |
| 4255 | |
Lei Li | 08d0ab3 | 2013-05-20 14:51:03 +0800 | [diff] [blame] | 4256 | fd = socket_dgram(udp->remote, udp->local, errp); |
Markus Armbruster | 5f75836 | 2014-05-19 18:57:34 +0200 | [diff] [blame] | 4257 | if (fd < 0) { |
Gerd Hoffmann | 3ecc059 | 2013-02-27 14:10:47 +0100 | [diff] [blame] | 4258 | return NULL; |
| 4259 | } |
| 4260 | return qemu_chr_open_udp_fd(fd); |
| 4261 | } |
| 4262 | |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4263 | ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, |
| 4264 | Error **errp) |
| 4265 | { |
| 4266 | ChardevReturn *ret = g_new0(ChardevReturn, 1); |
Paolo Bonzini | 3c0e5a4 | 2015-09-29 15:27:24 +0200 | [diff] [blame] | 4267 | CharDriverState *chr = NULL; |
Paolo Bonzini | eaeba65 | 2015-09-29 14:54:05 +0200 | [diff] [blame] | 4268 | Error *local_err = NULL; |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4269 | GSList *i; |
| 4270 | CharDriver *cd; |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4271 | |
| 4272 | chr = qemu_chr_find(id); |
| 4273 | if (chr) { |
| 4274 | error_setg(errp, "Chardev '%s' already exists", id); |
| 4275 | g_free(ret); |
| 4276 | return NULL; |
| 4277 | } |
| 4278 | |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4279 | for (i = backends; i; i = i->next) { |
| 4280 | cd = i->data; |
| 4281 | |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4282 | if (cd->kind == backend->type) { |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4283 | chr = cd->create(id, backend, ret, &local_err); |
| 4284 | if (local_err) { |
| 4285 | error_propagate(errp, local_err); |
| 4286 | goto out_error; |
| 4287 | } |
Gerd Hoffmann | edb2fb3 | 2013-02-21 16:16:42 +0100 | [diff] [blame] | 4288 | break; |
| 4289 | } |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4290 | } |
| 4291 | |
Paolo Bonzini | eaeba65 | 2015-09-29 14:54:05 +0200 | [diff] [blame] | 4292 | if (chr == NULL) { |
Paolo Bonzini | 1c3af0f | 2015-10-12 09:51:41 +0200 | [diff] [blame] | 4293 | assert(!i); |
| 4294 | error_setg(errp, "chardev backend not available"); |
| 4295 | goto out_error; |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4296 | } |
Paolo Bonzini | eaeba65 | 2015-09-29 14:54:05 +0200 | [diff] [blame] | 4297 | |
| 4298 | chr->label = g_strdup(id); |
| 4299 | chr->avail_connections = |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4300 | (backend->type == CHARDEV_BACKEND_KIND_MUX) ? MAX_MUX : 1; |
Paolo Bonzini | eaeba65 | 2015-09-29 14:54:05 +0200 | [diff] [blame] | 4301 | if (!chr->filename) { |
Eric Blake | 130257d | 2015-10-26 16:34:57 -0600 | [diff] [blame] | 4302 | chr->filename = g_strdup(ChardevBackendKind_lookup[backend->type]); |
Paolo Bonzini | eaeba65 | 2015-09-29 14:54:05 +0200 | [diff] [blame] | 4303 | } |
| 4304 | if (!chr->explicit_be_open) { |
| 4305 | qemu_chr_be_event(chr, CHR_EVENT_OPENED); |
| 4306 | } |
| 4307 | QTAILQ_INSERT_TAIL(&chardevs, chr, next); |
| 4308 | return ret; |
| 4309 | |
| 4310 | out_error: |
| 4311 | g_free(ret); |
| 4312 | return NULL; |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4313 | } |
| 4314 | |
| 4315 | void qmp_chardev_remove(const char *id, Error **errp) |
| 4316 | { |
| 4317 | CharDriverState *chr; |
| 4318 | |
| 4319 | chr = qemu_chr_find(id); |
Gonglei | 8108fd3 | 2014-08-11 21:00:55 +0800 | [diff] [blame] | 4320 | if (chr == NULL) { |
Gerd Hoffmann | f1a1a35 | 2012-12-19 10:33:56 +0100 | [diff] [blame] | 4321 | error_setg(errp, "Chardev '%s' not found", id); |
| 4322 | return; |
| 4323 | } |
| 4324 | if (chr->chr_can_read || chr->chr_read || |
| 4325 | chr->chr_event || chr->handler_opaque) { |
| 4326 | error_setg(errp, "Chardev '%s' is busy", id); |
| 4327 | return; |
| 4328 | } |
| 4329 | qemu_chr_delete(chr); |
| 4330 | } |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 4331 | |
| 4332 | static void register_types(void) |
| 4333 | { |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4334 | register_char_driver("null", CHARDEV_BACKEND_KIND_NULL, NULL, |
Paolo Bonzini | 0d64992 | 2015-09-29 15:24:29 +0200 | [diff] [blame] | 4335 | qemu_chr_open_null); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4336 | register_char_driver("socket", CHARDEV_BACKEND_KIND_SOCKET, |
Paolo Bonzini | dbba8d1 | 2015-09-29 15:15:53 +0200 | [diff] [blame] | 4337 | qemu_chr_parse_socket, qmp_chardev_open_socket); |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4338 | register_char_driver("udp", CHARDEV_BACKEND_KIND_UDP, qemu_chr_parse_udp, |
Paolo Bonzini | e79b80d | 2015-09-29 15:17:20 +0200 | [diff] [blame] | 4339 | qmp_chardev_open_udp); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4340 | register_char_driver("ringbuf", CHARDEV_BACKEND_KIND_RINGBUF, |
Paolo Bonzini | 479f09a | 2015-09-29 15:51:14 +0200 | [diff] [blame] | 4341 | qemu_chr_parse_ringbuf, qemu_chr_open_ringbuf); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4342 | register_char_driver("file", CHARDEV_BACKEND_KIND_FILE, |
Paolo Bonzini | fd5b036 | 2015-09-29 15:06:02 +0200 | [diff] [blame] | 4343 | qemu_chr_parse_file_out, qmp_chardev_open_file); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4344 | register_char_driver("stdio", CHARDEV_BACKEND_KIND_STDIO, |
Paolo Bonzini | 8c84b25 | 2015-09-29 15:40:28 +0200 | [diff] [blame] | 4345 | qemu_chr_parse_stdio, qemu_chr_open_stdio); |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4346 | #if defined HAVE_CHARDEV_SERIAL |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4347 | register_char_driver("serial", CHARDEV_BACKEND_KIND_SERIAL, |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4348 | qemu_chr_parse_serial, qmp_chardev_open_serial); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4349 | register_char_driver("tty", CHARDEV_BACKEND_KIND_SERIAL, |
Paolo Bonzini | 6511d39 | 2015-09-29 15:08:05 +0200 | [diff] [blame] | 4350 | qemu_chr_parse_serial, qmp_chardev_open_serial); |
| 4351 | #endif |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 4352 | #ifdef HAVE_CHARDEV_PARPORT |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4353 | register_char_driver("parallel", CHARDEV_BACKEND_KIND_PARALLEL, |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 4354 | qemu_chr_parse_parallel, qmp_chardev_open_parallel); |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4355 | register_char_driver("parport", CHARDEV_BACKEND_KIND_PARALLEL, |
Paolo Bonzini | 38bfb1a | 2015-10-12 09:49:28 +0200 | [diff] [blame] | 4356 | qemu_chr_parse_parallel, qmp_chardev_open_parallel); |
| 4357 | #endif |
Paolo Bonzini | c2e75a4 | 2015-09-29 15:23:42 +0200 | [diff] [blame] | 4358 | #ifdef HAVE_CHARDEV_PTY |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4359 | register_char_driver("pty", CHARDEV_BACKEND_KIND_PTY, NULL, |
Paolo Bonzini | c2e75a4 | 2015-09-29 15:23:42 +0200 | [diff] [blame] | 4360 | qemu_chr_open_pty); |
| 4361 | #endif |
Paolo Bonzini | 122e5ed | 2015-09-29 15:42:04 +0200 | [diff] [blame] | 4362 | #ifdef _WIN32 |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4363 | register_char_driver("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL, |
Paolo Bonzini | 122e5ed | 2015-09-29 15:42:04 +0200 | [diff] [blame] | 4364 | qemu_chr_open_win_con); |
| 4365 | #endif |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4366 | register_char_driver("pipe", CHARDEV_BACKEND_KIND_PIPE, |
Paolo Bonzini | 20cbe7a | 2015-09-29 15:14:07 +0200 | [diff] [blame] | 4367 | qemu_chr_parse_pipe, qemu_chr_open_pipe); |
Paolo Bonzini | 4ca1728 | 2015-09-29 14:55:59 +0200 | [diff] [blame] | 4368 | register_char_driver("mux", CHARDEV_BACKEND_KIND_MUX, qemu_chr_parse_mux, |
Paolo Bonzini | 3c0e5a4 | 2015-09-29 15:27:24 +0200 | [diff] [blame] | 4369 | qemu_chr_open_mux); |
Markus Armbruster | c11ed96 | 2013-07-26 16:44:33 +0200 | [diff] [blame] | 4370 | /* Bug-compatibility: */ |
Peter Maydell | e4d50d4 | 2014-09-02 11:24:17 +0100 | [diff] [blame] | 4371 | register_char_driver("memory", CHARDEV_BACKEND_KIND_MEMORY, |
Paolo Bonzini | 479f09a | 2015-09-29 15:51:14 +0200 | [diff] [blame] | 4372 | qemu_chr_parse_ringbuf, qemu_chr_open_ringbuf); |
Michael Roth | 7b7ab18 | 2013-07-30 13:04:22 -0500 | [diff] [blame] | 4373 | /* this must be done after machine init, since we register FEs with muxes |
| 4374 | * as part of realize functions like serial_isa_realizefn when -nographic |
| 4375 | * is specified |
| 4376 | */ |
| 4377 | qemu_add_machine_init_done_notifier(&muxes_realize_notify); |
Anthony Liguori | d654f34 | 2013-03-05 23:21:28 +0530 | [diff] [blame] | 4378 | } |
| 4379 | |
| 4380 | type_init(register_types); |