* THE SOFTWARE.
*/
#include "qemu-common.h"
-#include "net.h"
-#include "monitor.h"
-#include "console.h"
-#include "sysemu.h"
-#include "qemu-timer.h"
-#include "qemu-char.h"
+#include "monitor/monitor.h"
+#include "ui/console.h"
+#include "sysemu/sysemu.h"
+#include "qemu/timer.h"
+#include "char/char.h"
#include "hw/usb.h"
#include "hw/baum.h"
#include "hw/msmouse.h"
#endif
#endif
-#include "qemu_socket.h"
+#include "qemu/sockets.h"
#include "ui/qemu-spice.h"
#define READ_BUF_LEN 4096
s->chr_event(s->handler_opaque, event);
}
-static void qemu_chr_generic_open_bh(void *opaque)
+static void qemu_chr_fire_open_event(void *opaque)
{
CharDriverState *s = opaque;
qemu_chr_be_event(s, CHR_EVENT_OPENED);
- qemu_bh_delete(s->bh);
- s->bh = NULL;
+ qemu_free_timer(s->open_timer);
+ s->open_timer = NULL;
}
void qemu_chr_generic_open(CharDriverState *s)
{
- if (s->bh == NULL) {
- s->bh = qemu_bh_new(qemu_chr_generic_open_bh, s);
- qemu_bh_schedule(s->bh);
+ if (s->open_timer == NULL) {
+ s->open_timer = qemu_new_timer_ms(rt_clock,
+ qemu_chr_fire_open_event, s);
+ qemu_mod_timer(s->open_timer, qemu_get_clock_ms(rt_clock) - 1);
}
}
if (stdio_nb_clients >= STDIO_MAX_CLIENTS) {
return NULL;
}
+ if (is_daemonized()) {
+ error_report("cannot use stdio with -daemonize");
+ return NULL;
+ }
if (stdio_nb_clients == 0) {
old_fd0_flags = fcntl(0, F_GETFL);
tcgetattr (0, &oldtty);
|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
|| defined(__GLIBC__)
+#define HAVE_CHARDEV_TTY 1
+
typedef struct {
int fd;
int connected;
CharDriverState *chr;
PtyCharDriver *s;
struct termios tty;
+ const char *label;
int master_fd, slave_fd, len;
#if defined(__OpenBSD__) || defined(__DragonFly__)
char pty_name[PATH_MAX];
chr->filename = g_malloc(len);
snprintf(chr->filename, len, "pty:%s", q_ptsname(master_fd));
qemu_opt_set(opts, "path", q_ptsname(master_fd));
- fprintf(stderr, "char device redirected to %s\n", q_ptsname(master_fd));
+
+ label = qemu_opts_id(opts);
+ fprintf(stderr, "char device redirected to %s%s%s%s\n",
+ q_ptsname(master_fd),
+ label ? " (label " : "",
+ label ? label : "",
+ label ? ")" : "");
s = g_malloc0(sizeof(PtyCharDriver));
chr->opaque = s;
}
}
-static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_tty_fd(int fd)
{
- const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
- int fd;
- TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
- if (fd < 0) {
- return NULL;
- }
tty_serial_init(fd, 115200, 'N', 8, 1);
chr = qemu_chr_open_fd(fd, fd);
chr->chr_ioctl = tty_serial_ioctl;
chr->chr_close = qemu_chr_close_tty;
return chr;
}
-#else /* ! __linux__ && ! __sun__ */
-static CharDriverState *qemu_chr_open_pty(QemuOpts *opts)
+
+static CharDriverState *qemu_chr_open_tty(QemuOpts *opts)
{
- return NULL;
+ const char *filename = qemu_opt_get(opts, "path");
+ int fd;
+
+ TFR(fd = qemu_open(filename, O_RDWR | O_NONBLOCK));
+ if (fd < 0) {
+ return NULL;
+ }
+ return qemu_chr_open_tty_fd(fd);
}
#endif /* __linux__ || __sun__ */
#if defined(__linux__)
+
+#define HAVE_CHARDEV_PARPORT 1
+
typedef struct {
int fd;
int mode;
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pp_fd(int fd)
{
- const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
ParallelCharDriver *drv;
- int fd;
-
- TFR(fd = qemu_open(filename, O_RDWR));
- if (fd < 0) {
- return NULL;
- }
if (ioctl(fd, PPCLAIM) < 0) {
close(fd);
#endif /* __linux__ */
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+
+#define HAVE_CHARDEV_PARPORT 1
+
static int pp_ioctl(CharDriverState *chr, int cmd, void *arg)
{
int fd = (int)(intptr_t)chr->opaque;
return 0;
}
-static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pp_fd(int fd)
{
- const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
- int fd;
-
- fd = qemu_open(filename, O_RDWR);
- if (fd < 0) {
- return NULL;
- }
chr = g_malloc0(sizeof(CharDriverState));
chr->opaque = (void *)(intptr_t)fd;
return 0;
}
-static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_win_path(const char *filename)
{
- const char *filename = qemu_opt_get(opts, "path");
CharDriverState *chr;
WinCharState *s;
return chr;
}
+static CharDriverState *qemu_chr_open_win(QemuOpts *opts)
+{
+ return qemu_chr_open_win_path(qemu_opt_get(opts, "path"));
+}
+
static int win_chr_pipe_poll(void *opaque)
{
CharDriverState *chr = opaque;
{
CharDriverState *chr = NULL;
NetCharDriver *s = NULL;
+ Error *local_err = NULL;
int fd = -1;
chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(NetCharDriver));
- fd = inet_dgram_opts(opts);
+ fd = inet_dgram_opts(opts, &local_err);
if (fd < 0) {
- fprintf(stderr, "inet_dgram_opts failed\n");
goto return_err;
}
return chr;
return_err:
+ if (local_err) {
+ qerror_report_err(local_err);
+ error_free(local_err);
+ }
g_free(chr);
g_free(s);
if (fd >= 0) {
qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
}
-static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
+ bool is_listen, bool is_telnet,
+ bool is_waitconnect,
+ Error **errp)
{
CharDriverState *chr = NULL;
TCPCharDriver *s = NULL;
- int fd = -1;
- int is_listen;
- int is_waitconnect;
- int do_nodelay;
- int is_unix;
- int is_telnet;
-
- is_listen = qemu_opt_get_bool(opts, "server", 0);
- is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
- is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
- do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
- is_unix = qemu_opt_get(opts, "path") != NULL;
- if (!is_listen)
- is_waitconnect = 0;
+ char host[NI_MAXHOST], serv[NI_MAXSERV];
+ const char *left = "", *right = "";
+ struct sockaddr_storage ss;
+ socklen_t ss_len = sizeof(ss);
+
+ memset(&ss, 0, ss_len);
+ if (getsockname(fd, (struct sockaddr *) &ss, &ss_len) != 0) {
+ error_setg(errp, "getsockname: %s", strerror(errno));
+ return NULL;
+ }
chr = g_malloc0(sizeof(CharDriverState));
s = g_malloc0(sizeof(TCPCharDriver));
- if (is_unix) {
- if (is_listen) {
- fd = unix_listen_opts(opts);
- } else {
- fd = unix_connect_opts(opts);
- }
- } else {
- if (is_listen) {
- fd = inet_listen_opts(opts, 0, NULL);
- } else {
- fd = inet_connect_opts(opts, NULL, NULL, NULL);
- }
- }
- if (fd < 0) {
- goto fail;
- }
-
- if (!is_waitconnect)
- socket_set_nonblock(fd);
-
s->connected = 0;
s->fd = -1;
s->listen_fd = -1;
s->msgfd = -1;
- s->is_unix = is_unix;
- s->do_nodelay = do_nodelay && !is_unix;
+
+ chr->filename = g_malloc(256);
+ switch (ss.ss_family) {
+#ifndef _WIN32
+ case AF_UNIX:
+ s->is_unix = 1;
+ snprintf(chr->filename, 256, "unix:%s%s",
+ ((struct sockaddr_un *)(&ss))->sun_path,
+ is_listen ? ",server" : "");
+ break;
+#endif
+ case AF_INET6:
+ left = "[";
+ right = "]";
+ /* fall through */
+ case AF_INET:
+ s->do_nodelay = do_nodelay;
+ getnameinfo((struct sockaddr *) &ss, ss_len, host, sizeof(host),
+ serv, sizeof(serv), NI_NUMERICHOST | NI_NUMERICSERV);
+ snprintf(chr->filename, 256, "%s:%s:%s%s%s%s",
+ is_telnet ? "telnet" : "tcp",
+ left, host, right, serv,
+ is_listen ? ",server" : "");
+ break;
+ }
chr->opaque = s;
chr->chr_write = tcp_chr_write;
if (is_listen) {
s->listen_fd = fd;
qemu_set_fd_handler2(s->listen_fd, NULL, tcp_chr_accept, NULL, chr);
- if (is_telnet)
+ if (is_telnet) {
s->do_telnetopt = 1;
-
+ }
} else {
s->connected = 1;
s->fd = fd;
tcp_chr_connect(chr);
}
- /* for "info chardev" monitor command */
- chr->filename = g_malloc(256);
- if (is_unix) {
- snprintf(chr->filename, 256, "unix:%s%s",
- qemu_opt_get(opts, "path"),
- qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
- } else if (is_telnet) {
- snprintf(chr->filename, 256, "telnet:%s:%s%s",
- qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
- qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
- } else {
- snprintf(chr->filename, 256, "tcp:%s:%s%s",
- qemu_opt_get(opts, "host"), qemu_opt_get(opts, "port"),
- qemu_opt_get_bool(opts, "server", 0) ? ",server" : "");
- }
-
if (is_listen && is_waitconnect) {
printf("QEMU waiting for connection on: %s\n",
chr->filename);
socket_set_nonblock(s->listen_fd);
}
return chr;
+}
+
+static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
+{
+ CharDriverState *chr = NULL;
+ Error *local_err = NULL;
+ int fd = -1;
+ int is_listen;
+ int is_waitconnect;
+ int do_nodelay;
+ int is_unix;
+ int is_telnet;
+
+ is_listen = qemu_opt_get_bool(opts, "server", 0);
+ is_waitconnect = qemu_opt_get_bool(opts, "wait", 1);
+ is_telnet = qemu_opt_get_bool(opts, "telnet", 0);
+ do_nodelay = !qemu_opt_get_bool(opts, "delay", 1);
+ is_unix = qemu_opt_get(opts, "path") != NULL;
+ if (!is_listen)
+ is_waitconnect = 0;
+
+ if (is_unix) {
+ if (is_listen) {
+ fd = unix_listen_opts(opts, &local_err);
+ } else {
+ fd = unix_connect_opts(opts, &local_err, NULL, NULL);
+ }
+ } else {
+ if (is_listen) {
+ fd = inet_listen_opts(opts, 0, &local_err);
+ } else {
+ fd = inet_connect_opts(opts, &local_err, NULL, NULL);
+ }
+ }
+ if (fd < 0) {
+ goto fail;
+ }
+
+ if (!is_waitconnect)
+ socket_set_nonblock(fd);
+
+ chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
+ is_waitconnect, &local_err);
+ if (error_is_set(&local_err)) {
+ goto fail;
+ }
+ return chr;
+
fail:
- if (fd >= 0)
+ if (local_err) {
+ qerror_report_err(local_err);
+ error_free(local_err);
+ }
+ if (fd >= 0) {
closesocket(fd);
- g_free(s);
- g_free(chr);
+ }
+ if (chr) {
+ g_free(chr->opaque);
+ g_free(chr);
+ }
return NULL;
}
return d->outbuf_size;
}
+/*********************************************************/
+/* Ring buffer chardev */
+
+typedef struct {
+ size_t size;
+ size_t prod;
+ size_t cons;
+ uint8_t *cbuf;
+} RingBufCharDriver;
+
+static size_t ringbuf_count(const CharDriverState *chr)
+{
+ const RingBufCharDriver *d = chr->opaque;
+
+ return d->prod - d->cons;
+}
+
+static int ringbuf_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
+{
+ RingBufCharDriver *d = chr->opaque;
+ int i;
+
+ if (!buf || (len < 0)) {
+ return -1;
+ }
+
+ for (i = 0; i < len; i++ ) {
+ d->cbuf[d->prod++ & (d->size - 1)] = buf[i];
+ if (d->prod - d->cons > d->size) {
+ d->cons = d->prod - d->size;
+ }
+ }
+
+ return 0;
+}
+
+static int ringbuf_chr_read(CharDriverState *chr, uint8_t *buf, int len)
+{
+ RingBufCharDriver *d = chr->opaque;
+ int i;
+
+ for (i = 0; i < len && d->cons != d->prod; i++) {
+ buf[i] = d->cbuf[d->cons++ & (d->size - 1)];
+ }
+
+ return i;
+}
+
+static void ringbuf_chr_close(struct CharDriverState *chr)
+{
+ RingBufCharDriver *d = chr->opaque;
+
+ g_free(d->cbuf);
+ g_free(d);
+ chr->opaque = NULL;
+}
+
+static CharDriverState *qemu_chr_open_ringbuf(QemuOpts *opts)
+{
+ CharDriverState *chr;
+ RingBufCharDriver *d;
+
+ chr = g_malloc0(sizeof(CharDriverState));
+ d = g_malloc(sizeof(*d));
+
+ d->size = qemu_opt_get_size(opts, "size", 0);
+ if (d->size == 0) {
+ d->size = 65536;
+ }
+
+ /* The size must be power of 2 */
+ if (d->size & (d->size - 1)) {
+ error_report("size of ringbuf device must be power of two");
+ goto fail;
+ }
+
+ d->prod = 0;
+ d->cons = 0;
+ d->cbuf = g_malloc0(d->size);
+
+ chr->opaque = d;
+ chr->chr_write = ringbuf_chr_write;
+ chr->chr_close = ringbuf_chr_close;
+
+ return chr;
+
+fail:
+ g_free(d);
+ g_free(chr);
+ return NULL;
+}
+
+static bool chr_is_ringbuf(const CharDriverState *chr)
+{
+ return chr->chr_write == ringbuf_chr_write;
+}
+
+void qmp_ringbuf_write(const char *device, const char *data,
+ bool has_format, enum DataFormat format,
+ Error **errp)
+{
+ CharDriverState *chr;
+ const uint8_t *write_data;
+ int ret;
+ size_t write_count;
+
+ chr = qemu_chr_find(device);
+ if (!chr) {
+ error_setg(errp, "Device '%s' not found", device);
+ return;
+ }
+
+ if (!chr_is_ringbuf(chr)) {
+ error_setg(errp,"%s is not a ringbuf device", device);
+ return;
+ }
+
+ if (has_format && (format == DATA_FORMAT_BASE64)) {
+ write_data = g_base64_decode(data, &write_count);
+ } else {
+ write_data = (uint8_t *)data;
+ write_count = strlen(data);
+ }
+
+ ret = ringbuf_chr_write(chr, write_data, write_count);
+
+ if (write_data != (uint8_t *)data) {
+ g_free((void *)write_data);
+ }
+
+ if (ret < 0) {
+ error_setg(errp, "Failed to write to device %s", device);
+ return;
+ }
+}
+
+char *qmp_ringbuf_read(const char *device, int64_t size,
+ bool has_format, enum DataFormat format,
+ Error **errp)
+{
+ CharDriverState *chr;
+ uint8_t *read_data;
+ size_t count;
+ char *data;
+
+ chr = qemu_chr_find(device);
+ if (!chr) {
+ error_setg(errp, "Device '%s' not found", device);
+ return NULL;
+ }
+
+ if (!chr_is_ringbuf(chr)) {
+ error_setg(errp,"%s is not a ringbuf device", device);
+ return NULL;
+ }
+
+ if (size <= 0) {
+ error_setg(errp, "size must be greater than zero");
+ return NULL;
+ }
+
+ count = ringbuf_count(chr);
+ size = size > count ? count : size;
+ read_data = g_malloc(size + 1);
+
+ ringbuf_chr_read(chr, read_data, size);
+
+ if (has_format && (format == DATA_FORMAT_BASE64)) {
+ data = g_base64_encode(read_data, size);
+ g_free(read_data);
+ } else {
+ /*
+ * FIXME should read only complete, valid UTF-8 characters up
+ * to @size bytes. Invalid sequences should be replaced by a
+ * suitable replacement character. Except when (and only
+ * when) ring buffer lost characters since last read, initial
+ * continuation characters should be dropped.
+ */
+ read_data[size] = 0;
+ data = (char *)read_data;
+ }
+
+ return data;
+}
+
QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
{
char host[65], port[33], width[8], height[8];
return NULL;
}
+#ifdef HAVE_CHARDEV_PARPORT
+
+static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+{
+ const char *filename = qemu_opt_get(opts, "path");
+ int fd;
+
+ fd = qemu_open(filename, O_RDWR);
+ if (fd < 0) {
+ return NULL;
+ }
+ return qemu_chr_open_pp_fd(fd);
+}
+
+#endif
+
static const struct {
const char *name;
CharDriverState *(*open)(QemuOpts *opts);
{ .name = "udp", .open = qemu_chr_open_udp },
{ .name = "msmouse", .open = qemu_chr_open_msmouse },
{ .name = "vc", .open = text_console_init },
+ { .name = "memory", .open = qemu_chr_open_ringbuf },
#ifdef _WIN32
{ .name = "file", .open = qemu_chr_open_win_file_out },
{ .name = "pipe", .open = qemu_chr_open_win_pipe },
#else
{ .name = "file", .open = qemu_chr_open_file_out },
{ .name = "pipe", .open = qemu_chr_open_pipe },
- { .name = "pty", .open = qemu_chr_open_pty },
{ .name = "stdio", .open = qemu_chr_open_stdio },
#endif
#ifdef CONFIG_BRLAPI
{ .name = "braille", .open = chr_baum_init },
#endif
-#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
- || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
- || defined(__FreeBSD_kernel__)
+#ifdef HAVE_CHARDEV_TTY
{ .name = "tty", .open = qemu_chr_open_tty },
+ { .name = "serial", .open = qemu_chr_open_tty },
+ { .name = "pty", .open = qemu_chr_open_pty },
#endif
-#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__) \
- || defined(__FreeBSD_kernel__)
+#ifdef HAVE_CHARDEV_PARPORT
+ { .name = "parallel", .open = qemu_chr_open_pp },
{ .name = "parport", .open = qemu_chr_open_pp },
#endif
#ifdef CONFIG_SPICE
{ .name = "spicevmc", .open = qemu_chr_open_spice },
+#if SPICE_SERVER_VERSION >= 0x000c02
+ { .name = "spiceport", .open = qemu_chr_open_spice_port },
+#endif
#endif
};
CharDriverState *qemu_chr_new_from_opts(QemuOpts *opts,
- void (*init)(struct CharDriverState *s))
+ void (*init)(struct CharDriverState *s),
+ Error **errp)
{
CharDriverState *chr;
int i;
if (qemu_opts_id(opts) == NULL) {
- fprintf(stderr, "chardev: no id specified\n");
- return NULL;
+ error_setg(errp, "chardev: no id specified");
+ goto err;
}
if (qemu_opt_get(opts, "backend") == NULL) {
- fprintf(stderr, "chardev: \"%s\" missing backend\n",
- qemu_opts_id(opts));
- return NULL;
+ error_setg(errp, "chardev: \"%s\" missing backend",
+ qemu_opts_id(opts));
+ goto err;
}
for (i = 0; i < ARRAY_SIZE(backend_table); i++) {
if (strcmp(backend_table[i].name, qemu_opt_get(opts, "backend")) == 0)
break;
}
if (i == ARRAY_SIZE(backend_table)) {
- fprintf(stderr, "chardev: backend \"%s\" not found\n",
- qemu_opt_get(opts, "backend"));
- return NULL;
+ error_setg(errp, "chardev: backend \"%s\" not found",
+ qemu_opt_get(opts, "backend"));
+ goto err;
}
chr = backend_table[i].open(opts);
if (!chr) {
- fprintf(stderr, "chardev: opening backend \"%s\" failed\n",
- qemu_opt_get(opts, "backend"));
- return NULL;
+ error_setg(errp, "chardev: opening backend \"%s\" failed",
+ qemu_opt_get(opts, "backend"));
+ goto err;
}
if (!chr->filename)
chr->avail_connections = 1;
}
chr->label = g_strdup(qemu_opts_id(opts));
+ chr->opts = opts;
return chr;
+
+err:
+ qemu_opts_del(opts);
+ return NULL;
}
CharDriverState *qemu_chr_new(const char *label, const char *filename, void (*init)(struct CharDriverState *s))
const char *p;
CharDriverState *chr;
QemuOpts *opts;
+ Error *err = NULL;
if (strstart(filename, "chardev:", &p)) {
return qemu_chr_find(p);
if (!opts)
return NULL;
- chr = qemu_chr_new_from_opts(opts, init);
+ chr = qemu_chr_new_from_opts(opts, init, &err);
+ if (error_is_set(&err)) {
+ fprintf(stderr, "%s\n", error_get_pretty(err));
+ error_free(err);
+ }
if (chr && qemu_opt_get_bool(opts, "mux", 0)) {
monitor_init(chr, MONITOR_USE_READLINE);
}
- qemu_opts_del(opts);
return chr;
}
void qemu_chr_delete(CharDriverState *chr)
{
QTAILQ_REMOVE(&chardevs, chr, next);
- if (chr->chr_close)
+ if (chr->chr_close) {
chr->chr_close(chr);
+ }
g_free(chr->filename);
g_free(chr->label);
+ if (chr->opts) {
+ qemu_opts_del(chr->opts);
+ }
g_free(chr);
}
return serial_hds[next_serial++];
}
+QemuOptsList qemu_chardev_opts = {
+ .name = "chardev",
+ .implied_opt_name = "backend",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),
+ .desc = {
+ {
+ .name = "backend",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "path",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "host",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "port",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "localaddr",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "localport",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "to",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "ipv4",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "ipv6",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "wait",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "server",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "delay",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "telnet",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "width",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "height",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "cols",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "rows",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "mux",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "signal",
+ .type = QEMU_OPT_BOOL,
+ },{
+ .name = "name",
+ .type = QEMU_OPT_STRING,
+ },{
+ .name = "debug",
+ .type = QEMU_OPT_NUMBER,
+ },{
+ .name = "size",
+ .type = QEMU_OPT_SIZE,
+ },
+ { /* end of list */ }
+ },
+};
+
+#ifdef _WIN32
+
+static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
+{
+ HANDLE out;
+
+ if (file->in) {
+ error_setg(errp, "input file not supported");
+ return NULL;
+ }
+
+ out = CreateFile(file->out, GENERIC_WRITE, FILE_SHARE_READ, NULL,
+ OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (out == INVALID_HANDLE_VALUE) {
+ error_setg(errp, "open %s failed", file->out);
+ return NULL;
+ }
+ return qemu_chr_open_win_file(out);
+}
+
+static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
+ Error **errp)
+{
+ return qemu_chr_open_win_path(serial->device);
+}
+
+static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
+ Error **errp)
+{
+ error_setg(errp, "character device backend type 'parallel' not supported");
+ return NULL;
+}
+
+#else /* WIN32 */
+
+static int qmp_chardev_open_file_source(char *src, int flags,
+ Error **errp)
+{
+ int fd = -1;
+
+ TFR(fd = qemu_open(src, flags, 0666));
+ if (fd == -1) {
+ error_setg(errp, "open %s: %s", src, strerror(errno));
+ }
+ return fd;
+}
+
+static CharDriverState *qmp_chardev_open_file(ChardevFile *file, Error **errp)
+{
+ int flags, in = -1, out = -1;
+
+ flags = O_WRONLY | O_TRUNC | O_CREAT | O_BINARY;
+ out = qmp_chardev_open_file_source(file->out, flags, errp);
+ if (error_is_set(errp)) {
+ return NULL;
+ }
+
+ if (file->in) {
+ flags = O_RDONLY;
+ in = qmp_chardev_open_file_source(file->in, flags, errp);
+ if (error_is_set(errp)) {
+ qemu_close(out);
+ return NULL;
+ }
+ }
+
+ return qemu_chr_open_fd(in, out);
+}
+
+static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial,
+ Error **errp)
+{
+#ifdef HAVE_CHARDEV_TTY
+ int fd;
+
+ fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
+ if (error_is_set(errp)) {
+ return NULL;
+ }
+ socket_set_nonblock(fd);
+ return qemu_chr_open_tty_fd(fd);
+#else
+ error_setg(errp, "character device backend type 'serial' not supported");
+ return NULL;
+#endif
+}
+
+static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel,
+ Error **errp)
+{
+#ifdef HAVE_CHARDEV_PARPORT
+ int fd;
+
+ fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
+ if (error_is_set(errp)) {
+ return NULL;
+ }
+ return qemu_chr_open_pp_fd(fd);
+#else
+ error_setg(errp, "character device backend type 'parallel' not supported");
+ return NULL;
+#endif
+}
+
+#endif /* WIN32 */
+
+static CharDriverState *qmp_chardev_open_socket(ChardevSocket *sock,
+ Error **errp)
+{
+ SocketAddress *addr = sock->addr;
+ bool do_nodelay = sock->has_nodelay ? sock->nodelay : false;
+ bool is_listen = sock->has_server ? sock->server : true;
+ bool is_telnet = sock->has_telnet ? sock->telnet : false;
+ bool is_waitconnect = sock->has_wait ? sock->wait : false;
+ int fd;
+
+ if (is_listen) {
+ fd = socket_listen(addr, errp);
+ } else {
+ fd = socket_connect(addr, errp, NULL, NULL);
+ }
+ if (error_is_set(errp)) {
+ return NULL;
+ }
+ return qemu_chr_open_socket_fd(fd, do_nodelay, is_listen,
+ is_telnet, is_waitconnect, errp);
+}
+
+ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
+ Error **errp)
+{
+ ChardevReturn *ret = g_new0(ChardevReturn, 1);
+ CharDriverState *chr = NULL;
+
+ chr = qemu_chr_find(id);
+ if (chr) {
+ error_setg(errp, "Chardev '%s' already exists", id);
+ g_free(ret);
+ return NULL;
+ }
+
+ switch (backend->kind) {
+ case CHARDEV_BACKEND_KIND_FILE:
+ chr = qmp_chardev_open_file(backend->file, errp);
+ break;
+ case CHARDEV_BACKEND_KIND_SERIAL:
+ chr = qmp_chardev_open_serial(backend->serial, errp);
+ break;
+ case CHARDEV_BACKEND_KIND_PARALLEL:
+ chr = qmp_chardev_open_parallel(backend->parallel, errp);
+ break;
+ case CHARDEV_BACKEND_KIND_SOCKET:
+ chr = qmp_chardev_open_socket(backend->socket, errp);
+ break;
+#ifdef HAVE_CHARDEV_TTY
+ case CHARDEV_BACKEND_KIND_PTY:
+ {
+ /* qemu_chr_open_pty sets "path" in opts */
+ QemuOpts *opts;
+ opts = qemu_opts_create_nofail(qemu_find_opts("chardev"));
+ chr = qemu_chr_open_pty(opts);
+ ret->pty = g_strdup(qemu_opt_get(opts, "path"));
+ ret->has_pty = true;
+ qemu_opts_del(opts);
+ break;
+ }
+#endif
+ case CHARDEV_BACKEND_KIND_NULL:
+ chr = qemu_chr_open_null(NULL);
+ break;
+ default:
+ error_setg(errp, "unknown chardev backend (%d)", backend->kind);
+ break;
+ }
+
+ if (chr == NULL && !error_is_set(errp)) {
+ error_setg(errp, "Failed to create chardev");
+ }
+ if (chr) {
+ chr->label = g_strdup(id);
+ chr->avail_connections = 1;
+ QTAILQ_INSERT_TAIL(&chardevs, chr, next);
+ return ret;
+ } else {
+ g_free(ret);
+ return NULL;
+ }
+}
+
+void qmp_chardev_remove(const char *id, Error **errp)
+{
+ CharDriverState *chr;
+
+ chr = qemu_chr_find(id);
+ if (NULL == chr) {
+ error_setg(errp, "Chardev '%s' not found", id);
+ return;
+ }
+ if (chr->chr_can_read || chr->chr_read ||
+ chr->chr_event || chr->handler_opaque) {
+ error_setg(errp, "Chardev '%s' is busy", id);
+ return;
+ }
+ qemu_chr_delete(chr);
+}
projects / qemu.git / blobdiff