* THE SOFTWARE.
*/
#include "qemu/osdep.h"
-#include "qemu-common.h"
#include "qemu/cutils.h"
#include "monitor/monitor.h"
#include "sysemu/sysemu.h"
-#include "sysemu/block-backend.h"
+#include "qemu/config-file.h"
#include "qemu/error-report.h"
-#include "qemu/timer.h"
-#include "sysemu/char.h"
-#include "hw/usb.h"
+#include "chardev/char.h"
#include "qmp-commands.h"
-#include "qapi/clone-visitor.h"
#include "qapi-visit.h"
-#include "qemu/base64.h"
-#include "io/channel-socket.h"
-#include "io/channel-file.h"
-#include "io/channel-tls.h"
#include "sysemu/replay.h"
#include "qemu/help_option.h"
-#include <zlib.h>
-
-#ifndef _WIN32
-#include <sys/times.h>
-#include <sys/wait.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include <sys/resource.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <net/if.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <sys/select.h>
-#ifdef CONFIG_BSD
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
-#include <dev/ppbus/ppi.h>
-#include <dev/ppbus/ppbconf.h>
-#elif defined(__DragonFly__)
-#include <dev/misc/ppi/ppi.h>
-#include <bus/ppbus/ppbconf.h>
-#endif
-#else
-#ifdef __linux__
-#include <linux/ppdev.h>
-#include <linux/parport.h>
-#endif
-#ifdef __sun__
-#include <sys/ethernet.h>
-#include <sys/sockio.h>
-#include <netinet/arp.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h> // must come after ip.h
-#include <netinet/udp.h>
-#include <netinet/tcp.h>
-#endif
-#endif
-#endif
-
-#include "qemu/sockets.h"
-#include "ui/qemu-spice.h"
-
-#include "char-mux.h"
-
-#define READ_BUF_LEN 4096
-#define READ_RETRIES 10
-#define TCP_MAX_FDS 16
+#include "chardev/char-mux.h"
/***********************************************************/
-/* Socket address helpers */
-
-static char *SocketAddress_to_str(const char *prefix, SocketAddress *addr,
- bool is_listen, bool is_telnet)
-{
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- return g_strdup_printf("%s%s:%s:%s%s", prefix,
- is_telnet ? "telnet" : "tcp",
- addr->u.inet.data->host,
- addr->u.inet.data->port,
- is_listen ? ",server" : "");
- break;
- case SOCKET_ADDRESS_KIND_UNIX:
- return g_strdup_printf("%sunix:%s%s", prefix,
- addr->u.q_unix.data->path,
- is_listen ? ",server" : "");
- break;
- case SOCKET_ADDRESS_KIND_FD:
- return g_strdup_printf("%sfd:%s%s", prefix, addr->u.fd.data->str,
- is_listen ? ",server" : "");
- break;
- default:
- abort();
- }
-}
+/* character device */
-static char *sockaddr_to_str(struct sockaddr_storage *ss, socklen_t ss_len,
- struct sockaddr_storage *ps, socklen_t ps_len,
- bool is_listen, bool is_telnet)
+static Object *get_chardevs_root(void)
{
- char shost[NI_MAXHOST], sserv[NI_MAXSERV];
- char phost[NI_MAXHOST], pserv[NI_MAXSERV];
- const char *left = "", *right = "";
-
- switch (ss->ss_family) {
-#ifndef _WIN32
- case AF_UNIX:
- return g_strdup_printf("unix:%s%s",
- ((struct sockaddr_un *)(ss))->sun_path,
- is_listen ? ",server" : "");
-#endif
- case AF_INET6:
- left = "[";
- right = "]";
- /* fall through */
- case AF_INET:
- getnameinfo((struct sockaddr *) ss, ss_len, shost, sizeof(shost),
- sserv, sizeof(sserv), NI_NUMERICHOST | NI_NUMERICSERV);
- getnameinfo((struct sockaddr *) ps, ps_len, phost, sizeof(phost),
- pserv, sizeof(pserv), NI_NUMERICHOST | NI_NUMERICSERV);
- return g_strdup_printf("%s:%s%s%s:%s%s <-> %s%s%s:%s",
- is_telnet ? "telnet" : "tcp",
- left, shost, right, sserv,
- is_listen ? ",server" : "",
- left, phost, right, pserv);
-
- default:
- return g_strdup_printf("unknown");
- }
+ return container_get(object_get_root(), "/chardevs");
}
-/***********************************************************/
-/* character device */
-
-static QTAILQ_HEAD(ChardevHead, Chardev) chardevs =
- QTAILQ_HEAD_INITIALIZER(chardevs);
-
void qemu_chr_be_event(Chardev *s, int event)
{
CharBackend *be = s->be;
be->chr_event(be->opaque, event);
}
-void qemu_chr_be_generic_open(Chardev *s)
-{
- qemu_chr_be_event(s, CHR_EVENT_OPENED);
-}
-
-
/* Not reporting errors from writing to logfile, as logs are
* defined to be "best effort" only */
-static void qemu_chr_fe_write_log(Chardev *s,
- const uint8_t *buf, size_t len)
+static void qemu_chr_write_log(Chardev *s, const uint8_t *buf, size_t len)
{
size_t done = 0;
ssize_t ret;
}
}
-static int qemu_chr_fe_write_buffer(Chardev *s,
- const uint8_t *buf, int len, int *offset)
+static int qemu_chr_write_buffer(Chardev *s,
+ const uint8_t *buf, int len,
+ int *offset, bool write_all)
{
ChardevClass *cc = CHARDEV_GET_CLASS(s);
int res = 0;
while (*offset < len) {
retry:
res = cc->chr_write(s, buf + *offset, len - *offset);
- if (res < 0 && errno == EAGAIN) {
+ if (res < 0 && errno == EAGAIN && write_all) {
g_usleep(100);
goto retry;
}
}
*offset += res;
+ if (!write_all) {
+ break;
+ }
}
if (*offset > 0) {
- qemu_chr_fe_write_log(s, buf, *offset);
+ qemu_chr_write_log(s, buf, *offset);
}
qemu_mutex_unlock(&s->chr_write_lock);
return res;
}
-static bool qemu_chr_replay(Chardev *chr)
-{
- return qemu_chr_has_feature(chr, QEMU_CHAR_FEATURE_REPLAY);
-}
-
-int qemu_chr_fe_write(CharBackend *be, const uint8_t *buf, int len)
-{
- Chardev *s = be->chr;
- ChardevClass *cc;
- int ret;
-
- if (!s) {
- return 0;
- }
-
- if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) {
- int offset;
- replay_char_write_event_load(&ret, &offset);
- assert(offset <= len);
- qemu_chr_fe_write_buffer(s, buf, offset, &offset);
- return ret;
- }
-
- cc = CHARDEV_GET_CLASS(s);
- qemu_mutex_lock(&s->chr_write_lock);
- ret = cc->chr_write(s, buf, len);
-
- if (ret > 0) {
- qemu_chr_fe_write_log(s, buf, ret);
- }
-
- qemu_mutex_unlock(&s->chr_write_lock);
-
- if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) {
- replay_char_write_event_save(ret, ret < 0 ? 0 : ret);
- }
-
- return ret;
-}
-
-int qemu_chr_write_all(Chardev *s, const uint8_t *buf, int len)
+int qemu_chr_write(Chardev *s, const uint8_t *buf, int len, bool write_all)
{
- int offset;
+ int offset = 0;
int res;
if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) {
replay_char_write_event_load(&res, &offset);
assert(offset <= len);
- qemu_chr_fe_write_buffer(s, buf, offset, &offset);
+ qemu_chr_write_buffer(s, buf, offset, &offset, true);
return res;
}
- res = qemu_chr_fe_write_buffer(s, buf, len, &offset);
+ res = qemu_chr_write_buffer(s, buf, len, &offset, write_all);
if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) {
replay_char_write_event_save(res, offset);
return offset;
}
-int qemu_chr_fe_write_all(CharBackend *be, const uint8_t *buf, int len)
-{
- Chardev *s = be->chr;
-
- if (!s) {
- return 0;
- }
-
- return qemu_chr_write_all(s, buf, len);
-}
-
-int qemu_chr_fe_read_all(CharBackend *be, uint8_t *buf, int len)
-{
- Chardev *s = be->chr;
- int offset = 0, counter = 10;
- int res;
-
- if (!s || !CHARDEV_GET_CLASS(s)->chr_sync_read) {
- return 0;
- }
-
- if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_PLAY) {
- return replay_char_read_all_load(buf);
- }
-
- while (offset < len) {
- retry:
- res = CHARDEV_GET_CLASS(s)->chr_sync_read(s, buf + offset,
- len - offset);
- if (res == -1 && errno == EAGAIN) {
- g_usleep(100);
- goto retry;
- }
-
- if (res == 0) {
- break;
- }
-
- if (res < 0) {
- if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) {
- replay_char_read_all_save_error(res);
- }
- return res;
- }
-
- offset += res;
-
- if (!counter--) {
- break;
- }
- }
-
- if (qemu_chr_replay(s) && replay_mode == REPLAY_MODE_RECORD) {
- replay_char_read_all_save_buf(buf, offset);
- }
- return offset;
-}
-
-int qemu_chr_fe_ioctl(CharBackend *be, int cmd, void *arg)
-{
- Chardev *s = be->chr;
- int res;
-
- if (!s || !CHARDEV_GET_CLASS(s)->chr_ioctl || qemu_chr_replay(s)) {
- res = -ENOTSUP;
- } else {
- res = CHARDEV_GET_CLASS(s)->chr_ioctl(s, cmd, arg);
- }
-
- return res;
-}
-
int qemu_chr_be_can_write(Chardev *s)
{
CharBackend *be = s->be;
}
}
-int qemu_chr_fe_get_msgfd(CharBackend *be)
-{
- Chardev *s = be->chr;
- int fd;
- int res = (qemu_chr_fe_get_msgfds(be, &fd, 1) == 1) ? fd : -1;
- if (s && qemu_chr_replay(s)) {
- error_report("Replay: get msgfd is not supported "
- "for serial devices yet");
- exit(1);
- }
- return res;
-}
-
-int qemu_chr_fe_get_msgfds(CharBackend *be, int *fds, int len)
-{
- Chardev *s = be->chr;
-
- if (!s) {
- return -1;
- }
-
- return CHARDEV_GET_CLASS(s)->get_msgfds ?
- CHARDEV_GET_CLASS(s)->get_msgfds(s, fds, len) : -1;
-}
-
-int qemu_chr_fe_set_msgfds(CharBackend *be, int *fds, int num)
-{
- Chardev *s = be->chr;
-
- if (!s) {
- return -1;
- }
-
- return CHARDEV_GET_CLASS(s)->set_msgfds ?
- CHARDEV_GET_CLASS(s)->set_msgfds(s, fds, num) : -1;
-}
-
int qemu_chr_add_client(Chardev *s, int fd)
{
return CHARDEV_GET_CLASS(s)->chr_add_client ?
CHARDEV_GET_CLASS(s)->chr_add_client(s, fd) : -1;
}
-void qemu_chr_fe_accept_input(CharBackend *be)
-{
- Chardev *s = be->chr;
-
- if (!s) {
- return;
- }
-
- if (CHARDEV_GET_CLASS(s)->chr_accept_input) {
- CHARDEV_GET_CLASS(s)->chr_accept_input(s);
- }
- qemu_notify_event();
-}
-
-void qemu_chr_fe_printf(CharBackend *be, const char *fmt, ...)
-{
- char buf[READ_BUF_LEN];
- va_list ap;
- va_start(ap, fmt);
- vsnprintf(buf, sizeof(buf), fmt, ap);
- /* XXX this blocks entire thread. Rewrite to use
- * qemu_chr_fe_write and background I/O callbacks */
- qemu_chr_fe_write_all(be, (uint8_t *)buf, strlen(buf));
- va_end(ap);
-}
-
-static void remove_fd_in_watch(Chardev *chr);
-
static void qemu_char_open(Chardev *chr, ChardevBackend *backend,
bool *be_opened, Error **errp)
{
* mux will receive CHR_EVENT_OPENED notifications for the BE
* immediately.
*/
-static void muxes_realize_done(Notifier *notifier, void *unused)
+static int open_muxes(Object *child, void *opaque)
{
- Chardev *chr;
+ if (CHARDEV_IS_MUX(child)) {
+ /* send OPENED to all already-attached FEs */
+ mux_chr_send_all_event(CHARDEV(child), CHR_EVENT_OPENED);
+ /* mark mux as OPENED so any new FEs will immediately receive
+ * OPENED event
+ */
+ qemu_chr_be_event(CHARDEV(child), CHR_EVENT_OPENED);
+ }
- QTAILQ_FOREACH(chr, &chardevs, next) {
- if (CHARDEV_IS_MUX(chr)) {
- MuxChardev *d = MUX_CHARDEV(chr);
- int i;
+ return 0;
+}
- /* send OPENED to all already-attached FEs */
- for (i = 0; i < d->mux_cnt; i++) {
- mux_chr_send_event(d, i, CHR_EVENT_OPENED);
- }
- /* mark mux as OPENED so any new FEs will immediately receive
- * OPENED event
- */
- qemu_chr_be_generic_open(chr);
- }
- }
+static void muxes_realize_done(Notifier *notifier, void *unused)
+{
muxes_realized = true;
+ object_child_foreach(get_chardevs_root(), open_muxes, NULL);
}
static Notifier muxes_realize_notify = {
.notify = muxes_realize_done,
};
-Chardev *qemu_chr_fe_get_driver(CharBackend *be)
-{
- return be->chr;
-}
-
-bool qemu_chr_fe_init(CharBackend *b, Chardev *s, Error **errp)
-{
- int tag = 0;
-
- if (CHARDEV_IS_MUX(s)) {
- MuxChardev *d = MUX_CHARDEV(s);
-
- if (d->mux_cnt >= MAX_MUX) {
- goto unavailable;
- }
-
- d->backends[d->mux_cnt] = b;
- tag = d->mux_cnt++;
- } else if (s->be) {
- goto unavailable;
- } else {
- s->be = b;
- }
-
- b->fe_open = false;
- b->tag = tag;
- b->chr = s;
- return true;
-
-unavailable:
- error_setg(errp, QERR_DEVICE_IN_USE, s->label);
- return false;
-}
-
static bool qemu_chr_is_busy(Chardev *s)
{
if (CHARDEV_IS_MUX(s)) {
}
}
-void qemu_chr_fe_deinit(CharBackend *b)
+int qemu_chr_wait_connected(Chardev *chr, Error **errp)
{
- assert(b);
+ ChardevClass *cc = CHARDEV_GET_CLASS(chr);
- if (b->chr) {
- qemu_chr_fe_set_handlers(b, NULL, NULL, NULL, NULL, NULL, true);
- if (b->chr->be == b) {
- b->chr->be = NULL;
- }
- if (CHARDEV_IS_MUX(b->chr)) {
- MuxChardev *d = MUX_CHARDEV(b->chr);
- d->backends[b->tag] = NULL;
- }
- b->chr = NULL;
+ if (cc->chr_wait_connected) {
+ return cc->chr_wait_connected(chr, errp);
}
+
+ return 0;
}
-void qemu_chr_fe_set_handlers(CharBackend *b,
- IOCanReadHandler *fd_can_read,
- IOReadHandler *fd_read,
- IOEventHandler *fd_event,
- void *opaque,
- GMainContext *context,
- bool set_open)
+QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
{
- Chardev *s;
- ChardevClass *cc;
- int fe_open;
+ char host[65], port[33], width[8], height[8];
+ int pos;
+ const char *p;
+ QemuOpts *opts;
+ Error *local_err = NULL;
- s = b->chr;
- if (!s) {
- return;
+ opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ return NULL;
}
- cc = CHARDEV_GET_CLASS(s);
- if (!opaque && !fd_can_read && !fd_read && !fd_event) {
- fe_open = 0;
- remove_fd_in_watch(s);
- } else {
- fe_open = 1;
- }
- b->chr_can_read = fd_can_read;
- b->chr_read = fd_read;
- b->chr_event = fd_event;
- b->opaque = opaque;
- if (cc->chr_update_read_handler) {
- cc->chr_update_read_handler(s, context);
+ if (strstart(filename, "mon:", &p)) {
+ filename = p;
+ qemu_opt_set(opts, "mux", "on", &error_abort);
+ if (strcmp(filename, "stdio") == 0) {
+ /* Monitor is muxed to stdio: do not exit on Ctrl+C by default
+ * but pass it to the guest. Handle this only for compat syntax,
+ * for -chardev syntax we have special option for this.
+ * This is what -nographic did, redirecting+muxing serial+monitor
+ * to stdio causing Ctrl+C to be passed to guest. */
+ qemu_opt_set(opts, "signal", "off", &error_abort);
+ }
}
- if (set_open) {
- qemu_chr_fe_set_open(b, fe_open);
+ if (strcmp(filename, "null") == 0 ||
+ strcmp(filename, "pty") == 0 ||
+ strcmp(filename, "msmouse") == 0 ||
+ strcmp(filename, "wctablet") == 0 ||
+ strcmp(filename, "braille") == 0 ||
+ strcmp(filename, "testdev") == 0 ||
+ strcmp(filename, "stdio") == 0) {
+ qemu_opt_set(opts, "backend", filename, &error_abort);
+ return opts;
}
-
- if (fe_open) {
- qemu_chr_fe_take_focus(b);
- /* We're connecting to an already opened device, so let's make sure we
- also get the open event */
- if (s->be_open) {
- qemu_chr_be_generic_open(s);
+ if (strstart(filename, "vc", &p)) {
+ qemu_opt_set(opts, "backend", "vc", &error_abort);
+ if (*p == ':') {
+ if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) {
+ /* pixels */
+ qemu_opt_set(opts, "width", width, &error_abort);
+ qemu_opt_set(opts, "height", height, &error_abort);
+ } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) {
+ /* chars */
+ qemu_opt_set(opts, "cols", width, &error_abort);
+ qemu_opt_set(opts, "rows", height, &error_abort);
+ } else {
+ goto fail;
+ }
}
+ return opts;
}
-
- if (CHARDEV_IS_MUX(s)) {
- mux_chr_set_handlers(s, context);
- }
-}
-
-void qemu_chr_fe_take_focus(CharBackend *b)
-{
- if (!b->chr) {
- return;
+ if (strcmp(filename, "con:") == 0) {
+ qemu_opt_set(opts, "backend", "console", &error_abort);
+ return opts;
}
-
- if (CHARDEV_IS_MUX(b->chr)) {
- mux_set_focus(b->chr, b->tag);
+ if (strstart(filename, "COM", NULL)) {
+ qemu_opt_set(opts, "backend", "serial", &error_abort);
+ qemu_opt_set(opts, "path", filename, &error_abort);
+ return opts;
}
-}
-
-typedef struct IOWatchPoll
-{
- GSource parent;
-
- QIOChannel *ioc;
- GSource *src;
-
- IOCanReadHandler *fd_can_read;
- GSourceFunc fd_read;
- void *opaque;
- GMainContext *context;
-} IOWatchPoll;
-
-static IOWatchPoll *io_watch_poll_from_source(GSource *source)
-{
- return container_of(source, IOWatchPoll, parent);
-}
-
-static gboolean io_watch_poll_prepare(GSource *source,
- gint *timeout_)
-{
- IOWatchPoll *iwp = io_watch_poll_from_source(source);
- bool now_active = iwp->fd_can_read(iwp->opaque) > 0;
- bool was_active = iwp->src != NULL;
- if (was_active == now_active) {
- return FALSE;
+ if (strstart(filename, "file:", &p)) {
+ qemu_opt_set(opts, "backend", "file", &error_abort);
+ qemu_opt_set(opts, "path", p, &error_abort);
+ return opts;
}
-
- if (now_active) {
- iwp->src = qio_channel_create_watch(
- iwp->ioc, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL);
- g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL);
- g_source_attach(iwp->src, iwp->context);
- } else {
- g_source_destroy(iwp->src);
- g_source_unref(iwp->src);
- iwp->src = NULL;
- }
- return FALSE;
-}
-
-static gboolean io_watch_poll_check(GSource *source)
-{
- return FALSE;
-}
-
-static gboolean io_watch_poll_dispatch(GSource *source, GSourceFunc callback,
- gpointer user_data)
-{
- abort();
-}
-
-static void io_watch_poll_finalize(GSource *source)
-{
- /* Due to a glib bug, removing the last reference to a source
- * inside a finalize callback causes recursive locking (and a
- * deadlock). This is not a problem inside other callbacks,
- * including dispatch callbacks, so we call io_remove_watch_poll
- * to remove this source. At this point, iwp->src must
- * be NULL, or we would leak it.
- *
- * This would be solved much more elegantly by child sources,
- * but we support older glib versions that do not have them.
- */
- IOWatchPoll *iwp = io_watch_poll_from_source(source);
- assert(iwp->src == NULL);
-}
-
-static GSourceFuncs io_watch_poll_funcs = {
- .prepare = io_watch_poll_prepare,
- .check = io_watch_poll_check,
- .dispatch = io_watch_poll_dispatch,
- .finalize = io_watch_poll_finalize,
-};
-
-/* Can only be used for read */
-static guint io_add_watch_poll(Chardev *chr,
- QIOChannel *ioc,
- IOCanReadHandler *fd_can_read,
- QIOChannelFunc fd_read,
- gpointer user_data,
- GMainContext *context)
-{
- IOWatchPoll *iwp;
- int tag;
- char *name;
-
- iwp = (IOWatchPoll *) g_source_new(&io_watch_poll_funcs,
- sizeof(IOWatchPoll));
- iwp->fd_can_read = fd_can_read;
- iwp->opaque = user_data;
- iwp->ioc = ioc;
- iwp->fd_read = (GSourceFunc) fd_read;
- iwp->src = NULL;
- iwp->context = context;
-
- name = g_strdup_printf("chardev-iowatch-%s", chr->label);
- g_source_set_name((GSource *)iwp, name);
- g_free(name);
-
- tag = g_source_attach(&iwp->parent, context);
- g_source_unref(&iwp->parent);
- return tag;
-}
-
-static void io_remove_watch_poll(guint tag)
-{
- GSource *source;
- IOWatchPoll *iwp;
-
- g_return_if_fail (tag > 0);
-
- source = g_main_context_find_source_by_id(NULL, tag);
- g_return_if_fail (source != NULL);
-
- iwp = io_watch_poll_from_source(source);
- if (iwp->src) {
- g_source_destroy(iwp->src);
- g_source_unref(iwp->src);
- iwp->src = NULL;
- }
- g_source_destroy(&iwp->parent);
-}
-
-static void remove_fd_in_watch(Chardev *chr)
-{
- if (chr->fd_in_tag) {
- io_remove_watch_poll(chr->fd_in_tag);
- chr->fd_in_tag = 0;
- }
-}
-
-
-static int io_channel_send_full(QIOChannel *ioc,
- const void *buf, size_t len,
- int *fds, size_t nfds)
-{
- size_t offset = 0;
-
- while (offset < len) {
- ssize_t ret = 0;
- struct iovec iov = { .iov_base = (char *)buf + offset,
- .iov_len = len - offset };
-
- ret = qio_channel_writev_full(
- ioc, &iov, 1,
- fds, nfds, NULL);
- if (ret == QIO_CHANNEL_ERR_BLOCK) {
- if (offset) {
- return offset;
- }
-
- errno = EAGAIN;
- return -1;
- } else if (ret < 0) {
- errno = EINVAL;
- return -1;
- }
-
- offset += ret;
- }
-
- return offset;
-}
-
-
-#ifndef _WIN32
-static int io_channel_send(QIOChannel *ioc, const void *buf, size_t len)
-{
- return io_channel_send_full(ioc, buf, len, NULL, 0);
-}
-
-typedef struct FDChardev {
- Chardev parent;
- Chardev *chr;
- QIOChannel *ioc_in, *ioc_out;
- int max_size;
-} FDChardev;
-
-#define TYPE_CHARDEV_FD "chardev-fd"
-#define FD_CHARDEV(obj) OBJECT_CHECK(FDChardev, (obj), TYPE_CHARDEV_FD)
-
-/* Called with chr_write_lock held. */
-static int fd_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- FDChardev *s = FD_CHARDEV(chr);
-
- return io_channel_send(s->ioc_out, buf, len);
-}
-
-static gboolean fd_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- FDChardev *s = FD_CHARDEV(opaque);
- int len;
- uint8_t buf[READ_BUF_LEN];
- ssize_t ret;
-
- len = sizeof(buf);
- if (len > s->max_size) {
- len = s->max_size;
- }
- if (len == 0) {
- return TRUE;
- }
-
- ret = qio_channel_read(
- chan, (gchar *)buf, len, NULL);
- if (ret == 0) {
- remove_fd_in_watch(chr);
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
- return FALSE;
- }
- if (ret > 0) {
- qemu_chr_be_write(chr, buf, ret);
- }
-
- return TRUE;
-}
-
-static int fd_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- FDChardev *s = FD_CHARDEV(opaque);
-
- s->max_size = qemu_chr_be_can_write(chr);
- return s->max_size;
-}
-
-static GSource *fd_chr_add_watch(Chardev *chr, GIOCondition cond)
-{
- FDChardev *s = FD_CHARDEV(chr);
- return qio_channel_create_watch(s->ioc_out, cond);
-}
-
-static void fd_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- FDChardev *s = FD_CHARDEV(chr);
-
- remove_fd_in_watch(chr);
- if (s->ioc_in) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc_in,
- fd_chr_read_poll,
- fd_chr_read, chr,
- context);
- }
-}
-
-static void char_fd_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- FDChardev *s = FD_CHARDEV(obj);
-
- remove_fd_in_watch(chr);
- if (s->ioc_in) {
- object_unref(OBJECT(s->ioc_in));
- }
- if (s->ioc_out) {
- object_unref(OBJECT(s->ioc_out));
- }
-
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-/* open a character device to a unix fd */
-static void qemu_chr_open_fd(Chardev *chr,
- int fd_in, int fd_out)
-{
- FDChardev *s = FD_CHARDEV(chr);
- char *name;
-
- s->ioc_in = QIO_CHANNEL(qio_channel_file_new_fd(fd_in));
- name = g_strdup_printf("chardev-file-in-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(s->ioc_in), name);
- g_free(name);
- s->ioc_out = QIO_CHANNEL(qio_channel_file_new_fd(fd_out));
- name = g_strdup_printf("chardev-file-out-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(s->ioc_out), name);
- g_free(name);
- qemu_set_nonblock(fd_out);
- s->chr = chr;
-}
-
-static void char_fd_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->chr_add_watch = fd_chr_add_watch;
- cc->chr_write = fd_chr_write;
- cc->chr_update_read_handler = fd_chr_update_read_handler;
-}
-
-static const TypeInfo char_fd_type_info = {
- .name = TYPE_CHARDEV_FD,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(FDChardev),
- .instance_finalize = char_fd_finalize,
- .class_init = char_fd_class_init,
- .abstract = true,
-};
-
-static void qemu_chr_open_pipe(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevHostdev *opts = backend->u.pipe.data;
- int fd_in, fd_out;
- char *filename_in;
- char *filename_out;
- const char *filename = opts->device;
-
- filename_in = g_strdup_printf("%s.in", filename);
- filename_out = g_strdup_printf("%s.out", filename);
- TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
- TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
- g_free(filename_in);
- g_free(filename_out);
- if (fd_in < 0 || fd_out < 0) {
- if (fd_in >= 0)
- close(fd_in);
- if (fd_out >= 0)
- close(fd_out);
- TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY));
- if (fd_in < 0) {
- error_setg_file_open(errp, errno, filename);
- return;
- }
- }
- qemu_chr_open_fd(chr, fd_in, fd_out);
-}
-
-/* init terminal so that we can grab keys */
-static struct termios oldtty;
-static int old_fd0_flags;
-static bool stdio_in_use;
-static bool stdio_allow_signal;
-static bool stdio_echo_state;
-
-static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo);
-
-static void term_exit(void)
-{
- tcsetattr (0, TCSANOW, &oldtty);
- fcntl(0, F_SETFL, old_fd0_flags);
-}
-
-static void term_stdio_handler(int sig)
-{
- /* restore echo after resume from suspend. */
- qemu_chr_set_echo_stdio(NULL, stdio_echo_state);
-}
-
-static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo)
-{
- struct termios tty;
-
- stdio_echo_state = echo;
- tty = oldtty;
- if (!echo) {
- tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
- |INLCR|IGNCR|ICRNL|IXON);
- tty.c_oflag |= OPOST;
- tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
- tty.c_cflag &= ~(CSIZE|PARENB);
- tty.c_cflag |= CS8;
- tty.c_cc[VMIN] = 1;
- tty.c_cc[VTIME] = 0;
- }
- if (!stdio_allow_signal)
- tty.c_lflag &= ~ISIG;
-
- tcsetattr (0, TCSANOW, &tty);
-}
-
-static void char_stdio_finalize(Object *obj)
-{
- term_exit();
-}
-
-static void qemu_chr_open_stdio(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevStdio *opts = backend->u.stdio.data;
- struct sigaction act;
-
- if (is_daemonized()) {
- error_setg(errp, "cannot use stdio with -daemonize");
- return;
- }
-
- if (stdio_in_use) {
- error_setg(errp, "cannot use stdio by multiple character devices");
- return;
- }
-
- stdio_in_use = true;
- old_fd0_flags = fcntl(0, F_GETFL);
- tcgetattr(0, &oldtty);
- qemu_set_nonblock(0);
- atexit(term_exit);
-
- memset(&act, 0, sizeof(act));
- act.sa_handler = term_stdio_handler;
- sigaction(SIGCONT, &act, NULL);
-
- qemu_chr_open_fd(chr, 0, 1);
-
- if (opts->has_signal) {
- stdio_allow_signal = opts->signal;
- }
- qemu_chr_set_echo_stdio(chr, false);
-}
-
-#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
- || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
- || defined(__GLIBC__)
-
-#define HAVE_CHARDEV_SERIAL 1
-#define HAVE_CHARDEV_PTY 1
-
-typedef struct {
- Chardev parent;
- QIOChannel *ioc;
- int read_bytes;
-
- /* Protected by the Chardev chr_write_lock. */
- int connected;
- guint timer_tag;
- guint open_tag;
-} PtyChardev;
-
-#define PTY_CHARDEV(obj) OBJECT_CHECK(PtyChardev, (obj), TYPE_CHARDEV_PTY)
-
-static void pty_chr_update_read_handler_locked(Chardev *chr);
-static void pty_chr_state(Chardev *chr, int connected);
-
-static gboolean pty_chr_timer(gpointer opaque)
-{
- struct Chardev *chr = CHARDEV(opaque);
- PtyChardev *s = PTY_CHARDEV(opaque);
-
- qemu_mutex_lock(&chr->chr_write_lock);
- s->timer_tag = 0;
- s->open_tag = 0;
- if (!s->connected) {
- /* Next poll ... */
- pty_chr_update_read_handler_locked(chr);
- }
- qemu_mutex_unlock(&chr->chr_write_lock);
- return FALSE;
-}
-
-/* Called with chr_write_lock held. */
-static void pty_chr_rearm_timer(Chardev *chr, int ms)
-{
- PtyChardev *s = PTY_CHARDEV(chr);
- char *name;
-
- if (s->timer_tag) {
- g_source_remove(s->timer_tag);
- s->timer_tag = 0;
- }
-
- if (ms == 1000) {
- name = g_strdup_printf("pty-timer-secs-%s", chr->label);
- s->timer_tag = g_timeout_add_seconds(1, pty_chr_timer, chr);
- } else {
- name = g_strdup_printf("pty-timer-ms-%s", chr->label);
- s->timer_tag = g_timeout_add(ms, pty_chr_timer, chr);
- }
- g_source_set_name_by_id(s->timer_tag, name);
- g_free(name);
-}
-
-/* Called with chr_write_lock held. */
-static void pty_chr_update_read_handler_locked(Chardev *chr)
-{
- PtyChardev *s = PTY_CHARDEV(chr);
- GPollFD pfd;
- int rc;
- QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc);
-
- pfd.fd = fioc->fd;
- pfd.events = G_IO_OUT;
- pfd.revents = 0;
- do {
- rc = g_poll(&pfd, 1, 0);
- } while (rc == -1 && errno == EINTR);
- assert(rc >= 0);
-
- if (pfd.revents & G_IO_HUP) {
- pty_chr_state(chr, 0);
- } else {
- pty_chr_state(chr, 1);
- }
-}
-
-static void pty_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- qemu_mutex_lock(&chr->chr_write_lock);
- pty_chr_update_read_handler_locked(chr);
- qemu_mutex_unlock(&chr->chr_write_lock);
-}
-
-/* Called with chr_write_lock held. */
-static int char_pty_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- PtyChardev *s = PTY_CHARDEV(chr);
-
- if (!s->connected) {
- /* guest sends data, check for (re-)connect */
- pty_chr_update_read_handler_locked(chr);
- if (!s->connected) {
- return 0;
- }
- }
- return io_channel_send(s->ioc, buf, len);
-}
-
-static GSource *pty_chr_add_watch(Chardev *chr, GIOCondition cond)
-{
- PtyChardev *s = PTY_CHARDEV(chr);
- if (!s->connected) {
- return NULL;
- }
- return qio_channel_create_watch(s->ioc, cond);
-}
-
-static int pty_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- PtyChardev *s = PTY_CHARDEV(opaque);
-
- s->read_bytes = qemu_chr_be_can_write(chr);
- return s->read_bytes;
-}
-
-static gboolean pty_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- PtyChardev *s = PTY_CHARDEV(opaque);
- gsize len;
- uint8_t buf[READ_BUF_LEN];
- ssize_t ret;
-
- len = sizeof(buf);
- if (len > s->read_bytes)
- len = s->read_bytes;
- if (len == 0) {
- return TRUE;
- }
- ret = qio_channel_read(s->ioc, (char *)buf, len, NULL);
- if (ret <= 0) {
- pty_chr_state(chr, 0);
- return FALSE;
- } else {
- pty_chr_state(chr, 1);
- qemu_chr_be_write(chr, buf, ret);
- }
- return TRUE;
-}
-
-static gboolean qemu_chr_be_generic_open_func(gpointer opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- PtyChardev *s = PTY_CHARDEV(opaque);
-
- s->open_tag = 0;
- qemu_chr_be_generic_open(chr);
- return FALSE;
-}
-
-/* Called with chr_write_lock held. */
-static void pty_chr_state(Chardev *chr, int connected)
-{
- PtyChardev *s = PTY_CHARDEV(chr);
-
- if (!connected) {
- if (s->open_tag) {
- g_source_remove(s->open_tag);
- s->open_tag = 0;
- }
- remove_fd_in_watch(chr);
- s->connected = 0;
- /* (re-)connect poll interval for idle guests: once per second.
- * We check more frequently in case the guests sends data to
- * the virtual device linked to our pty. */
- pty_chr_rearm_timer(chr, 1000);
- } else {
- if (s->timer_tag) {
- g_source_remove(s->timer_tag);
- s->timer_tag = 0;
- }
- if (!s->connected) {
- g_assert(s->open_tag == 0);
- s->connected = 1;
- s->open_tag = g_idle_add(qemu_chr_be_generic_open_func, chr);
- }
- if (!chr->fd_in_tag) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- pty_chr_read_poll,
- pty_chr_read,
- chr, NULL);
- }
- }
-}
-
-static void char_pty_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- PtyChardev *s = PTY_CHARDEV(obj);
-
- qemu_mutex_lock(&chr->chr_write_lock);
- pty_chr_state(chr, 0);
- object_unref(OBJECT(s->ioc));
- if (s->timer_tag) {
- g_source_remove(s->timer_tag);
- s->timer_tag = 0;
- }
- qemu_mutex_unlock(&chr->chr_write_lock);
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-static void char_pty_open(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- PtyChardev *s;
- int master_fd, slave_fd;
- char pty_name[PATH_MAX];
- char *name;
-
- master_fd = qemu_openpty_raw(&slave_fd, pty_name);
- if (master_fd < 0) {
- error_setg_errno(errp, errno, "Failed to create PTY");
- return;
- }
-
- close(slave_fd);
- qemu_set_nonblock(master_fd);
-
- chr->filename = g_strdup_printf("pty:%s", pty_name);
- error_report("char device redirected to %s (label %s)",
- pty_name, chr->label);
-
- s = PTY_CHARDEV(chr);
- s->ioc = QIO_CHANNEL(qio_channel_file_new_fd(master_fd));
- name = g_strdup_printf("chardev-pty-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(s->ioc), name);
- g_free(name);
- s->timer_tag = 0;
- *be_opened = false;
-}
-
-static void char_pty_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->open = char_pty_open;
- cc->chr_write = char_pty_chr_write;
- cc->chr_update_read_handler = pty_chr_update_read_handler;
- cc->chr_add_watch = pty_chr_add_watch;
-}
-
-static const TypeInfo char_pty_type_info = {
- .name = TYPE_CHARDEV_PTY,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(PtyChardev),
- .instance_finalize = char_pty_finalize,
- .class_init = char_pty_class_init,
-};
-
-static void tty_serial_init(int fd, int speed,
- int parity, int data_bits, int stop_bits)
-{
- struct termios tty;
- speed_t spd;
-
-#if 0
- printf("tty_serial_init: speed=%d parity=%c data=%d stop=%d\n",
- speed, parity, data_bits, stop_bits);
-#endif
- tcgetattr (fd, &tty);
-
-#define check_speed(val) if (speed <= val) { spd = B##val; break; }
- speed = speed * 10 / 11;
- do {
- check_speed(50);
- check_speed(75);
- check_speed(110);
- check_speed(134);
- check_speed(150);
- check_speed(200);
- check_speed(300);
- check_speed(600);
- check_speed(1200);
- check_speed(1800);
- check_speed(2400);
- check_speed(4800);
- check_speed(9600);
- check_speed(19200);
- check_speed(38400);
- /* Non-Posix values follow. They may be unsupported on some systems. */
- check_speed(57600);
- check_speed(115200);
-#ifdef B230400
- check_speed(230400);
-#endif
-#ifdef B460800
- check_speed(460800);
-#endif
-#ifdef B500000
- check_speed(500000);
-#endif
-#ifdef B576000
- check_speed(576000);
-#endif
-#ifdef B921600
- check_speed(921600);
-#endif
-#ifdef B1000000
- check_speed(1000000);
-#endif
-#ifdef B1152000
- check_speed(1152000);
-#endif
-#ifdef B1500000
- check_speed(1500000);
-#endif
-#ifdef B2000000
- check_speed(2000000);
-#endif
-#ifdef B2500000
- check_speed(2500000);
-#endif
-#ifdef B3000000
- check_speed(3000000);
-#endif
-#ifdef B3500000
- check_speed(3500000);
-#endif
-#ifdef B4000000
- check_speed(4000000);
-#endif
- spd = B115200;
- } while (0);
-
- cfsetispeed(&tty, spd);
- cfsetospeed(&tty, spd);
-
- tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
- |INLCR|IGNCR|ICRNL|IXON);
- tty.c_oflag |= OPOST;
- tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN|ISIG);
- tty.c_cflag &= ~(CSIZE|PARENB|PARODD|CRTSCTS|CSTOPB);
- switch(data_bits) {
- default:
- case 8:
- tty.c_cflag |= CS8;
- break;
- case 7:
- tty.c_cflag |= CS7;
- break;
- case 6:
- tty.c_cflag |= CS6;
- break;
- case 5:
- tty.c_cflag |= CS5;
- break;
- }
- switch(parity) {
- default:
- case 'N':
- break;
- case 'E':
- tty.c_cflag |= PARENB;
- break;
- case 'O':
- tty.c_cflag |= PARENB | PARODD;
- break;
- }
- if (stop_bits == 2)
- tty.c_cflag |= CSTOPB;
-
- tcsetattr (fd, TCSANOW, &tty);
-}
-
-static int tty_serial_ioctl(Chardev *chr, int cmd, void *arg)
-{
- FDChardev *s = FD_CHARDEV(chr);
- QIOChannelFile *fioc = QIO_CHANNEL_FILE(s->ioc_in);
-
- switch(cmd) {
- case CHR_IOCTL_SERIAL_SET_PARAMS:
- {
- QEMUSerialSetParams *ssp = arg;
- tty_serial_init(fioc->fd,
- ssp->speed, ssp->parity,
- ssp->data_bits, ssp->stop_bits);
- }
- break;
- case CHR_IOCTL_SERIAL_SET_BREAK:
- {
- int enable = *(int *)arg;
- if (enable) {
- tcsendbreak(fioc->fd, 1);
- }
- }
- break;
- case CHR_IOCTL_SERIAL_GET_TIOCM:
- {
- int sarg = 0;
- int *targ = (int *)arg;
- ioctl(fioc->fd, TIOCMGET, &sarg);
- *targ = 0;
- if (sarg & TIOCM_CTS)
- *targ |= CHR_TIOCM_CTS;
- if (sarg & TIOCM_CAR)
- *targ |= CHR_TIOCM_CAR;
- if (sarg & TIOCM_DSR)
- *targ |= CHR_TIOCM_DSR;
- if (sarg & TIOCM_RI)
- *targ |= CHR_TIOCM_RI;
- if (sarg & TIOCM_DTR)
- *targ |= CHR_TIOCM_DTR;
- if (sarg & TIOCM_RTS)
- *targ |= CHR_TIOCM_RTS;
- }
- break;
- case CHR_IOCTL_SERIAL_SET_TIOCM:
- {
- int sarg = *(int *)arg;
- int targ = 0;
- ioctl(fioc->fd, TIOCMGET, &targ);
- targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
- | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
- if (sarg & CHR_TIOCM_CTS)
- targ |= TIOCM_CTS;
- if (sarg & CHR_TIOCM_CAR)
- targ |= TIOCM_CAR;
- if (sarg & CHR_TIOCM_DSR)
- targ |= TIOCM_DSR;
- if (sarg & CHR_TIOCM_RI)
- targ |= TIOCM_RI;
- if (sarg & CHR_TIOCM_DTR)
- targ |= TIOCM_DTR;
- if (sarg & CHR_TIOCM_RTS)
- targ |= TIOCM_RTS;
- ioctl(fioc->fd, TIOCMSET, &targ);
- }
- break;
- default:
- return -ENOTSUP;
- }
- return 0;
-}
-#endif /* __linux__ || __sun__ */
-
-#if defined(__linux__)
-
-#define HAVE_CHARDEV_PARPORT 1
-
-typedef struct {
- Chardev parent;
- int fd;
- int mode;
-} ParallelChardev;
-
-#define PARALLEL_CHARDEV(obj) \
- OBJECT_CHECK(ParallelChardev, (obj), TYPE_CHARDEV_PARALLEL)
-
-static int pp_hw_mode(ParallelChardev *s, uint16_t mode)
-{
- if (s->mode != mode) {
- int m = mode;
- if (ioctl(s->fd, PPSETMODE, &m) < 0)
- return 0;
- s->mode = mode;
- }
- return 1;
-}
-
-static int pp_ioctl(Chardev *chr, int cmd, void *arg)
-{
- ParallelChardev *drv = PARALLEL_CHARDEV(chr);
- int fd = drv->fd;
- uint8_t b;
-
- switch(cmd) {
- case CHR_IOCTL_PP_READ_DATA:
- if (ioctl(fd, PPRDATA, &b) < 0)
- return -ENOTSUP;
- *(uint8_t *)arg = b;
- break;
- case CHR_IOCTL_PP_WRITE_DATA:
- b = *(uint8_t *)arg;
- if (ioctl(fd, PPWDATA, &b) < 0)
- return -ENOTSUP;
- break;
- case CHR_IOCTL_PP_READ_CONTROL:
- if (ioctl(fd, PPRCONTROL, &b) < 0)
- return -ENOTSUP;
- /* Linux gives only the lowest bits, and no way to know data
- direction! For better compatibility set the fixed upper
- bits. */
- *(uint8_t *)arg = b | 0xc0;
- break;
- case CHR_IOCTL_PP_WRITE_CONTROL:
- b = *(uint8_t *)arg;
- if (ioctl(fd, PPWCONTROL, &b) < 0)
- return -ENOTSUP;
- break;
- case CHR_IOCTL_PP_READ_STATUS:
- if (ioctl(fd, PPRSTATUS, &b) < 0)
- return -ENOTSUP;
- *(uint8_t *)arg = b;
- break;
- case CHR_IOCTL_PP_DATA_DIR:
- if (ioctl(fd, PPDATADIR, (int *)arg) < 0)
- return -ENOTSUP;
- break;
- case CHR_IOCTL_PP_EPP_READ_ADDR:
- if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
- struct ParallelIOArg *parg = arg;
- int n = read(fd, parg->buffer, parg->count);
- if (n != parg->count) {
- return -EIO;
- }
- }
- break;
- case CHR_IOCTL_PP_EPP_READ:
- if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
- struct ParallelIOArg *parg = arg;
- int n = read(fd, parg->buffer, parg->count);
- if (n != parg->count) {
- return -EIO;
- }
- }
- break;
- case CHR_IOCTL_PP_EPP_WRITE_ADDR:
- if (pp_hw_mode(drv, IEEE1284_MODE_EPP|IEEE1284_ADDR)) {
- struct ParallelIOArg *parg = arg;
- int n = write(fd, parg->buffer, parg->count);
- if (n != parg->count) {
- return -EIO;
- }
- }
- break;
- case CHR_IOCTL_PP_EPP_WRITE:
- if (pp_hw_mode(drv, IEEE1284_MODE_EPP)) {
- struct ParallelIOArg *parg = arg;
- int n = write(fd, parg->buffer, parg->count);
- if (n != parg->count) {
- return -EIO;
- }
- }
- break;
- default:
- return -ENOTSUP;
- }
- return 0;
-}
-
-static void qemu_chr_open_pp_fd(Chardev *chr,
- int fd,
- bool *be_opened,
- Error **errp)
-{
- ParallelChardev *drv = PARALLEL_CHARDEV(chr);
-
- if (ioctl(fd, PPCLAIM) < 0) {
- error_setg_errno(errp, errno, "not a parallel port");
- close(fd);
- return;
- }
-
- drv->fd = fd;
- drv->mode = IEEE1284_MODE_COMPAT;
-}
-#endif /* __linux__ */
-
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-
-#define HAVE_CHARDEV_PARPORT 1
-
-typedef struct {
- Chardev parent;
- int fd;
-} ParallelChardev;
-
-#define PARALLEL_CHARDEV(obj) \
- OBJECT_CHECK(ParallelChardev, (obj), TYPE_CHARDEV_PARALLEL)
-
-static int pp_ioctl(Chardev *chr, int cmd, void *arg)
-{
- ParallelChardev *drv = PARALLEL_CHARDEV(chr);
- uint8_t b;
-
- switch (cmd) {
- case CHR_IOCTL_PP_READ_DATA:
- if (ioctl(drv->fd, PPIGDATA, &b) < 0) {
- return -ENOTSUP;
- }
- *(uint8_t *)arg = b;
- break;
- case CHR_IOCTL_PP_WRITE_DATA:
- b = *(uint8_t *)arg;
- if (ioctl(drv->fd, PPISDATA, &b) < 0) {
- return -ENOTSUP;
- }
- break;
- case CHR_IOCTL_PP_READ_CONTROL:
- if (ioctl(drv->fd, PPIGCTRL, &b) < 0) {
- return -ENOTSUP;
- }
- *(uint8_t *)arg = b;
- break;
- case CHR_IOCTL_PP_WRITE_CONTROL:
- b = *(uint8_t *)arg;
- if (ioctl(drv->fd, PPISCTRL, &b) < 0) {
- return -ENOTSUP;
- }
- break;
- case CHR_IOCTL_PP_READ_STATUS:
- if (ioctl(drv->fd, PPIGSTATUS, &b) < 0) {
- return -ENOTSUP;
- }
- *(uint8_t *)arg = b;
- break;
- default:
- return -ENOTSUP;
- }
- return 0;
-}
-
-static void qemu_chr_open_pp_fd(Chardev *chr,
- int fd,
- bool *be_opened,
- Error **errp)
-{
- ParallelChardev *drv = PARALLEL_CHARDEV(chr);
- drv->fd = fd;
- *be_opened = false;
-}
-#endif
-
-#else /* _WIN32 */
-
-#define HAVE_CHARDEV_SERIAL 1
-
-typedef struct {
- Chardev parent;
- int max_size;
- HANDLE hcom, hrecv, hsend;
- OVERLAPPED orecv;
- BOOL fpipe;
- DWORD len;
-
- /* Protected by the Chardev chr_write_lock. */
- OVERLAPPED osend;
- /* FIXME: file/console do not finalize */
- bool skip_free;
-} WinChardev;
-
-#define TYPE_CHARDEV_WIN "chardev-win"
-#define WIN_CHARDEV(obj) OBJECT_CHECK(WinChardev, (obj), TYPE_CHARDEV_WIN)
-
-typedef struct {
- Chardev parent;
- HANDLE hStdIn;
- HANDLE hInputReadyEvent;
- HANDLE hInputDoneEvent;
- HANDLE hInputThread;
- uint8_t win_stdio_buf;
-} WinStdioChardev;
-
-#define TYPE_CHARDEV_WIN_STDIO "chardev-win-stdio"
-#define WIN_STDIO_CHARDEV(obj) \
- OBJECT_CHECK(WinStdioChardev, (obj), TYPE_CHARDEV_WIN_STDIO)
-
-#define NSENDBUF 2048
-#define NRECVBUF 2048
-#define MAXCONNECT 1
-#define NTIMEOUT 5000
-
-static int win_chr_poll(void *opaque);
-static int win_chr_pipe_poll(void *opaque);
-
-static void char_win_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- WinChardev *s = WIN_CHARDEV(chr);
-
- if (s->skip_free) {
- return;
- }
-
- if (s->hsend) {
- CloseHandle(s->hsend);
- }
- if (s->hrecv) {
- CloseHandle(s->hrecv);
- }
- if (s->hcom) {
- CloseHandle(s->hcom);
- }
- if (s->fpipe)
- qemu_del_polling_cb(win_chr_pipe_poll, chr);
- else
- qemu_del_polling_cb(win_chr_poll, chr);
-
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-static int win_chr_init(Chardev *chr, const char *filename, Error **errp)
-{
- WinChardev *s = WIN_CHARDEV(chr);
- COMMCONFIG comcfg;
- COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
- COMSTAT comstat;
- DWORD size;
- DWORD err;
-
- s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
- if (!s->hsend) {
- error_setg(errp, "Failed CreateEvent");
- goto fail;
- }
- s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
- if (!s->hrecv) {
- error_setg(errp, "Failed CreateEvent");
- goto fail;
- }
-
- s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL,
- OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
- if (s->hcom == INVALID_HANDLE_VALUE) {
- error_setg(errp, "Failed CreateFile (%lu)", GetLastError());
- s->hcom = NULL;
- goto fail;
- }
-
- if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
- error_setg(errp, "Failed SetupComm");
- goto fail;
- }
-
- ZeroMemory(&comcfg, sizeof(COMMCONFIG));
- size = sizeof(COMMCONFIG);
- GetDefaultCommConfig(filename, &comcfg, &size);
- comcfg.dcb.DCBlength = sizeof(DCB);
- CommConfigDialog(filename, NULL, &comcfg);
-
- if (!SetCommState(s->hcom, &comcfg.dcb)) {
- error_setg(errp, "Failed SetCommState");
- goto fail;
- }
-
- if (!SetCommMask(s->hcom, EV_ERR)) {
- error_setg(errp, "Failed SetCommMask");
- goto fail;
- }
-
- cto.ReadIntervalTimeout = MAXDWORD;
- if (!SetCommTimeouts(s->hcom, &cto)) {
- error_setg(errp, "Failed SetCommTimeouts");
- goto fail;
- }
-
- if (!ClearCommError(s->hcom, &err, &comstat)) {
- error_setg(errp, "Failed ClearCommError");
- goto fail;
- }
- qemu_add_polling_cb(win_chr_poll, chr);
- return 0;
-
- fail:
- return -1;
-}
-
-/* Called with chr_write_lock held. */
-static int win_chr_write(Chardev *chr, const uint8_t *buf, int len1)
-{
- WinChardev *s = WIN_CHARDEV(chr);
- DWORD len, ret, size, err;
-
- len = len1;
- ZeroMemory(&s->osend, sizeof(s->osend));
- s->osend.hEvent = s->hsend;
- while (len > 0) {
- if (s->hsend)
- ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
- else
- ret = WriteFile(s->hcom, buf, len, &size, NULL);
- if (!ret) {
- err = GetLastError();
- if (err == ERROR_IO_PENDING) {
- ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
- if (ret) {
- buf += size;
- len -= size;
- } else {
- break;
- }
- } else {
- break;
- }
- } else {
- buf += size;
- len -= size;
- }
- }
- return len1 - len;
-}
-
-static int win_chr_read_poll(Chardev *chr)
-{
- WinChardev *s = WIN_CHARDEV(chr);
-
- s->max_size = qemu_chr_be_can_write(chr);
- return s->max_size;
-}
-
-static void win_chr_readfile(Chardev *chr)
-{
- WinChardev *s = WIN_CHARDEV(chr);
-
- int ret, err;
- uint8_t buf[READ_BUF_LEN];
- DWORD size;
-
- ZeroMemory(&s->orecv, sizeof(s->orecv));
- s->orecv.hEvent = s->hrecv;
- ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
- if (!ret) {
- err = GetLastError();
- if (err == ERROR_IO_PENDING) {
- ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
- }
- }
-
- if (size > 0) {
- qemu_chr_be_write(chr, buf, size);
- }
-}
-
-static void win_chr_read(Chardev *chr)
-{
- WinChardev *s = WIN_CHARDEV(chr);
-
- if (s->len > s->max_size)
- s->len = s->max_size;
- if (s->len == 0)
- return;
-
- win_chr_readfile(chr);
-}
-
-static int win_chr_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- WinChardev *s = WIN_CHARDEV(opaque);
- COMSTAT status;
- DWORD comerr;
-
- ClearCommError(s->hcom, &comerr, &status);
- if (status.cbInQue > 0) {
- s->len = status.cbInQue;
- win_chr_read_poll(chr);
- win_chr_read(chr);
- return 1;
- }
- return 0;
-}
-
-static int win_chr_pipe_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- WinChardev *s = WIN_CHARDEV(opaque);
- DWORD size;
-
- PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
- if (size > 0) {
- s->len = size;
- win_chr_read_poll(chr);
- win_chr_read(chr);
- return 1;
- }
- return 0;
-}
-
-static int win_chr_pipe_init(Chardev *chr, const char *filename,
- Error **errp)
-{
- WinChardev *s = WIN_CHARDEV(chr);
- OVERLAPPED ov;
- int ret;
- DWORD size;
- char *openname;
-
- s->fpipe = TRUE;
-
- s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
- if (!s->hsend) {
- error_setg(errp, "Failed CreateEvent");
- goto fail;
- }
- s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
- if (!s->hrecv) {
- error_setg(errp, "Failed CreateEvent");
- goto fail;
- }
-
- openname = g_strdup_printf("\\\\.\\pipe\\%s", filename);
- s->hcom = CreateNamedPipe(openname, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
- PIPE_TYPE_BYTE | PIPE_READMODE_BYTE |
- PIPE_WAIT,
- MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL);
- g_free(openname);
- if (s->hcom == INVALID_HANDLE_VALUE) {
- error_setg(errp, "Failed CreateNamedPipe (%lu)", GetLastError());
- s->hcom = NULL;
- goto fail;
- }
-
- ZeroMemory(&ov, sizeof(ov));
- ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
- ret = ConnectNamedPipe(s->hcom, &ov);
- if (ret) {
- error_setg(errp, "Failed ConnectNamedPipe");
- goto fail;
- }
-
- ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE);
- if (!ret) {
- error_setg(errp, "Failed GetOverlappedResult");
- if (ov.hEvent) {
- CloseHandle(ov.hEvent);
- ov.hEvent = NULL;
- }
- goto fail;
- }
-
- if (ov.hEvent) {
- CloseHandle(ov.hEvent);
- ov.hEvent = NULL;
- }
- qemu_add_polling_cb(win_chr_pipe_poll, chr);
- return 0;
-
- fail:
- return -1;
-}
-
-
-static void qemu_chr_open_pipe(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevHostdev *opts = backend->u.pipe.data;
- const char *filename = opts->device;
-
- if (win_chr_pipe_init(chr, filename, errp) < 0) {
- return;
- }
-}
-
-static void qemu_chr_open_win_file(Chardev *chr, HANDLE fd_out)
-{
- WinChardev *s = WIN_CHARDEV(chr);
-
- s->skip_free = true;
- s->hcom = fd_out;
-}
-
-static void char_win_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->chr_write = win_chr_write;
-}
-
-static const TypeInfo char_win_type_info = {
- .name = TYPE_CHARDEV_WIN,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(WinChardev),
- .instance_finalize = char_win_finalize,
- .class_init = char_win_class_init,
- .abstract = true,
-};
-
-static void qemu_chr_open_win_con(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- qemu_chr_open_win_file(chr, GetStdHandle(STD_OUTPUT_HANDLE));
-}
-
-static void char_console_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->open = qemu_chr_open_win_con;
-}
-
-static const TypeInfo char_console_type_info = {
- .name = TYPE_CHARDEV_CONSOLE,
- .parent = TYPE_CHARDEV_WIN,
- .class_init = char_console_class_init,
-};
-
-static int win_stdio_write(Chardev *chr, const uint8_t *buf, int len)
-{
- HANDLE hStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
- DWORD dwSize;
- int len1;
-
- len1 = len;
-
- while (len1 > 0) {
- if (!WriteFile(hStdOut, buf, len1, &dwSize, NULL)) {
- break;
- }
- buf += dwSize;
- len1 -= dwSize;
- }
-
- return len - len1;
-}
-
-static void win_stdio_wait_func(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(opaque);
- INPUT_RECORD buf[4];
- int ret;
- DWORD dwSize;
- int i;
-
- ret = ReadConsoleInput(stdio->hStdIn, buf, ARRAY_SIZE(buf), &dwSize);
-
- if (!ret) {
- /* Avoid error storm */
- qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
- return;
- }
-
- for (i = 0; i < dwSize; i++) {
- KEY_EVENT_RECORD *kev = &buf[i].Event.KeyEvent;
-
- if (buf[i].EventType == KEY_EVENT && kev->bKeyDown) {
- int j;
- if (kev->uChar.AsciiChar != 0) {
- for (j = 0; j < kev->wRepeatCount; j++) {
- if (qemu_chr_be_can_write(chr)) {
- uint8_t c = kev->uChar.AsciiChar;
- qemu_chr_be_write(chr, &c, 1);
- }
- }
- }
- }
- }
-}
-
-static DWORD WINAPI win_stdio_thread(LPVOID param)
-{
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(param);
- int ret;
- DWORD dwSize;
-
- while (1) {
-
- /* Wait for one byte */
- ret = ReadFile(stdio->hStdIn, &stdio->win_stdio_buf, 1, &dwSize, NULL);
-
- /* Exit in case of error, continue if nothing read */
- if (!ret) {
- break;
- }
- if (!dwSize) {
- continue;
- }
-
- /* Some terminal emulator returns \r\n for Enter, just pass \n */
- if (stdio->win_stdio_buf == '\r') {
- continue;
- }
-
- /* Signal the main thread and wait until the byte was eaten */
- if (!SetEvent(stdio->hInputReadyEvent)) {
- break;
- }
- if (WaitForSingleObject(stdio->hInputDoneEvent, INFINITE)
- != WAIT_OBJECT_0) {
- break;
- }
- }
-
- qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
- return 0;
-}
-
-static void win_stdio_thread_wait_func(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(opaque);
-
- if (qemu_chr_be_can_write(chr)) {
- qemu_chr_be_write(chr, &stdio->win_stdio_buf, 1);
- }
-
- SetEvent(stdio->hInputDoneEvent);
-}
-
-static void qemu_chr_set_echo_win_stdio(Chardev *chr, bool echo)
-{
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(chr);
- DWORD dwMode = 0;
-
- GetConsoleMode(stdio->hStdIn, &dwMode);
-
- if (echo) {
- SetConsoleMode(stdio->hStdIn, dwMode | ENABLE_ECHO_INPUT);
- } else {
- SetConsoleMode(stdio->hStdIn, dwMode & ~ENABLE_ECHO_INPUT);
- }
-}
-
-static void char_win_stdio_finalize(Object *obj)
-{
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(obj);
-
- if (stdio->hInputReadyEvent != INVALID_HANDLE_VALUE) {
- CloseHandle(stdio->hInputReadyEvent);
- }
- if (stdio->hInputDoneEvent != INVALID_HANDLE_VALUE) {
- CloseHandle(stdio->hInputDoneEvent);
- }
- if (stdio->hInputThread != INVALID_HANDLE_VALUE) {
- TerminateThread(stdio->hInputThread, 0);
- }
-}
-
-static const TypeInfo char_win_stdio_type_info = {
- .name = TYPE_CHARDEV_WIN_STDIO,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(WinStdioChardev),
- .instance_finalize = char_win_stdio_finalize,
- .abstract = true,
-};
-
-static void qemu_chr_open_stdio(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- WinStdioChardev *stdio = WIN_STDIO_CHARDEV(chr);
- DWORD dwMode;
- int is_console = 0;
-
- stdio->hStdIn = GetStdHandle(STD_INPUT_HANDLE);
- if (stdio->hStdIn == INVALID_HANDLE_VALUE) {
- error_setg(errp, "cannot open stdio: invalid handle");
- return;
- }
-
- is_console = GetConsoleMode(stdio->hStdIn, &dwMode) != 0;
-
- if (is_console) {
- if (qemu_add_wait_object(stdio->hStdIn,
- win_stdio_wait_func, chr)) {
- error_setg(errp, "qemu_add_wait_object: failed");
- goto err1;
- }
- } else {
- DWORD dwId;
-
- stdio->hInputReadyEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
- stdio->hInputDoneEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
- if (stdio->hInputReadyEvent == INVALID_HANDLE_VALUE
- || stdio->hInputDoneEvent == INVALID_HANDLE_VALUE) {
- error_setg(errp, "cannot create event");
- goto err2;
- }
- if (qemu_add_wait_object(stdio->hInputReadyEvent,
- win_stdio_thread_wait_func, chr)) {
- error_setg(errp, "qemu_add_wait_object: failed");
- goto err2;
- }
- stdio->hInputThread = CreateThread(NULL, 0, win_stdio_thread,
- chr, 0, &dwId);
-
- if (stdio->hInputThread == INVALID_HANDLE_VALUE) {
- error_setg(errp, "cannot create stdio thread");
- goto err3;
- }
- }
-
- dwMode |= ENABLE_LINE_INPUT;
-
- if (is_console) {
- /* set the terminal in raw mode */
- /* ENABLE_QUICK_EDIT_MODE | ENABLE_EXTENDED_FLAGS */
- dwMode |= ENABLE_PROCESSED_INPUT;
- }
-
- SetConsoleMode(stdio->hStdIn, dwMode);
-
- qemu_chr_set_echo_win_stdio(chr, false);
-
- return;
-
-err3:
- qemu_del_wait_object(stdio->hInputReadyEvent, NULL, NULL);
-err2:
- CloseHandle(stdio->hInputReadyEvent);
- CloseHandle(stdio->hInputDoneEvent);
-err1:
- qemu_del_wait_object(stdio->hStdIn, NULL, NULL);
-}
-#endif /* !_WIN32 */
-
-/***********************************************************/
-/* UDP Net console */
-
-typedef struct {
- Chardev parent;
- QIOChannel *ioc;
- uint8_t buf[READ_BUF_LEN];
- int bufcnt;
- int bufptr;
- int max_size;
-} UdpChardev;
-
-#define UDP_CHARDEV(obj) OBJECT_CHECK(UdpChardev, (obj), TYPE_CHARDEV_UDP)
-
-/* Called with chr_write_lock held. */
-static int udp_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- UdpChardev *s = UDP_CHARDEV(chr);
-
- return qio_channel_write(
- s->ioc, (const char *)buf, len, NULL);
-}
-
-static int udp_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- UdpChardev *s = UDP_CHARDEV(opaque);
-
- s->max_size = qemu_chr_be_can_write(chr);
-
- /* If there were any stray characters in the queue process them
- * first
- */
- while (s->max_size > 0 && s->bufptr < s->bufcnt) {
- qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
- s->bufptr++;
- s->max_size = qemu_chr_be_can_write(chr);
- }
- return s->max_size;
-}
-
-static gboolean udp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- UdpChardev *s = UDP_CHARDEV(opaque);
- ssize_t ret;
-
- if (s->max_size == 0) {
- return TRUE;
- }
- ret = qio_channel_read(
- s->ioc, (char *)s->buf, sizeof(s->buf), NULL);
- if (ret <= 0) {
- remove_fd_in_watch(chr);
- return FALSE;
- }
- s->bufcnt = ret;
-
- s->bufptr = 0;
- while (s->max_size > 0 && s->bufptr < s->bufcnt) {
- qemu_chr_be_write(chr, &s->buf[s->bufptr], 1);
- s->bufptr++;
- s->max_size = qemu_chr_be_can_write(chr);
- }
-
- return TRUE;
-}
-
-static void udp_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- UdpChardev *s = UDP_CHARDEV(chr);
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- udp_chr_read_poll,
- udp_chr_read, chr,
- context);
- }
-}
-
-static void char_udp_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- UdpChardev *s = UDP_CHARDEV(obj);
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- object_unref(OBJECT(s->ioc));
- }
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-/***********************************************************/
-/* TCP Net console */
-
-typedef struct {
- Chardev parent;
- QIOChannel *ioc; /* Client I/O channel */
- QIOChannelSocket *sioc; /* Client master channel */
- QIOChannelSocket *listen_ioc;
- guint listen_tag;
- QCryptoTLSCreds *tls_creds;
- int connected;
- int max_size;
- int do_telnetopt;
- int do_nodelay;
- int is_unix;
- int *read_msgfds;
- size_t read_msgfds_num;
- int *write_msgfds;
- size_t write_msgfds_num;
-
- SocketAddress *addr;
- bool is_listen;
- bool is_telnet;
-
- guint reconnect_timer;
- int64_t reconnect_time;
- bool connect_err_reported;
-} SocketChardev;
-
-#define SOCKET_CHARDEV(obj) \
- OBJECT_CHECK(SocketChardev, (obj), TYPE_CHARDEV_SOCKET)
-
-static gboolean socket_reconnect_timeout(gpointer opaque);
-
-static void qemu_chr_socket_restart_timer(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- char *name;
-
- assert(s->connected == 0);
- s->reconnect_timer = g_timeout_add_seconds(s->reconnect_time,
- socket_reconnect_timeout, chr);
- name = g_strdup_printf("chardev-socket-reconnect-%s", chr->label);
- g_source_set_name_by_id(s->reconnect_timer, name);
- g_free(name);
-}
-
-static void check_report_connect_error(Chardev *chr,
- Error *err)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connect_err_reported) {
- error_report("Unable to connect character device %s: %s",
- chr->label, error_get_pretty(err));
- s->connect_err_reported = true;
- }
- qemu_chr_socket_restart_timer(chr);
-}
-
-static gboolean tcp_chr_accept(QIOChannel *chan,
- GIOCondition cond,
- void *opaque);
-
-/* Called with chr_write_lock held. */
-static int tcp_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (s->connected) {
- int ret = io_channel_send_full(s->ioc, buf, len,
- s->write_msgfds,
- s->write_msgfds_num);
-
- /* free the written msgfds, no matter what */
- if (s->write_msgfds_num) {
- g_free(s->write_msgfds);
- s->write_msgfds = 0;
- s->write_msgfds_num = 0;
- }
-
- return ret;
- } else {
- /* XXX: indicate an error ? */
- return len;
- }
-}
-
-static int tcp_chr_read_poll(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- if (!s->connected)
- return 0;
- s->max_size = qemu_chr_be_can_write(chr);
- return s->max_size;
-}
-
-#define IAC 255
-#define IAC_BREAK 243
-static void tcp_chr_process_IAC_bytes(Chardev *chr,
- SocketChardev *s,
- uint8_t *buf, int *size)
-{
- /* Handle any telnet client's basic IAC options to satisfy char by
- * char mode with no echo. All IAC options will be removed from
- * the buf and the do_telnetopt variable will be used to track the
- * state of the width of the IAC information.
- *
- * IAC commands come in sets of 3 bytes with the exception of the
- * "IAC BREAK" command and the double IAC.
- */
-
- int i;
- int j = 0;
-
- for (i = 0; i < *size; i++) {
- if (s->do_telnetopt > 1) {
- if ((unsigned char)buf[i] == IAC && s->do_telnetopt == 2) {
- /* Double IAC means send an IAC */
- if (j != i)
- buf[j] = buf[i];
- j++;
- s->do_telnetopt = 1;
- } else {
- if ((unsigned char)buf[i] == IAC_BREAK && s->do_telnetopt == 2) {
- /* Handle IAC break commands by sending a serial break */
- qemu_chr_be_event(chr, CHR_EVENT_BREAK);
- s->do_telnetopt++;
- }
- s->do_telnetopt++;
- }
- if (s->do_telnetopt >= 4) {
- s->do_telnetopt = 1;
- }
- } else {
- if ((unsigned char)buf[i] == IAC) {
- s->do_telnetopt = 2;
- } else {
- if (j != i)
- buf[j] = buf[i];
- j++;
- }
- }
- }
- *size = j;
-}
-
-static int tcp_get_msgfds(Chardev *chr, int *fds, int num)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- int to_copy = (s->read_msgfds_num < num) ? s->read_msgfds_num : num;
-
- assert(num <= TCP_MAX_FDS);
-
- if (to_copy) {
- int i;
-
- memcpy(fds, s->read_msgfds, to_copy * sizeof(int));
-
- /* Close unused fds */
- for (i = to_copy; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
-
- g_free(s->read_msgfds);
- s->read_msgfds = 0;
- s->read_msgfds_num = 0;
- }
-
- return to_copy;
-}
-
-static int tcp_set_msgfds(Chardev *chr, int *fds, int num)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- /* clear old pending fd array */
- g_free(s->write_msgfds);
- s->write_msgfds = NULL;
- s->write_msgfds_num = 0;
-
- if (!s->connected ||
- !qio_channel_has_feature(s->ioc,
- QIO_CHANNEL_FEATURE_FD_PASS)) {
- return -1;
- }
-
- if (num) {
- s->write_msgfds = g_new(int, num);
- memcpy(s->write_msgfds, fds, num * sizeof(int));
- }
-
- s->write_msgfds_num = num;
-
- return 0;
-}
-
-static ssize_t tcp_chr_recv(Chardev *chr, char *buf, size_t len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- struct iovec iov = { .iov_base = buf, .iov_len = len };
- int ret;
- size_t i;
- int *msgfds = NULL;
- size_t msgfds_num = 0;
-
- if (qio_channel_has_feature(s->ioc, QIO_CHANNEL_FEATURE_FD_PASS)) {
- ret = qio_channel_readv_full(s->ioc, &iov, 1,
- &msgfds, &msgfds_num,
- NULL);
- } else {
- ret = qio_channel_readv_full(s->ioc, &iov, 1,
- NULL, NULL,
- NULL);
- }
-
- if (ret == QIO_CHANNEL_ERR_BLOCK) {
- errno = EAGAIN;
- ret = -1;
- } else if (ret == -1) {
- errno = EIO;
- }
-
- if (msgfds_num) {
- /* close and clean read_msgfds */
- for (i = 0; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
-
- if (s->read_msgfds_num) {
- g_free(s->read_msgfds);
- }
-
- s->read_msgfds = msgfds;
- s->read_msgfds_num = msgfds_num;
- }
-
- for (i = 0; i < s->read_msgfds_num; i++) {
- int fd = s->read_msgfds[i];
- if (fd < 0) {
- continue;
- }
-
- /* O_NONBLOCK is preserved across SCM_RIGHTS so reset it */
- qemu_set_block(fd);
-
-#ifndef MSG_CMSG_CLOEXEC
- qemu_set_cloexec(fd);
-#endif
- }
-
- return ret;
-}
-
-static GSource *tcp_chr_add_watch(Chardev *chr, GIOCondition cond)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- return qio_channel_create_watch(s->ioc, cond);
-}
-
-static void tcp_chr_free_connection(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- int i;
-
- if (!s->connected) {
- return;
- }
-
- if (s->read_msgfds_num) {
- for (i = 0; i < s->read_msgfds_num; i++) {
- close(s->read_msgfds[i]);
- }
- g_free(s->read_msgfds);
- s->read_msgfds = NULL;
- s->read_msgfds_num = 0;
- }
-
- tcp_set_msgfds(chr, NULL, 0);
- remove_fd_in_watch(chr);
- object_unref(OBJECT(s->sioc));
- s->sioc = NULL;
- object_unref(OBJECT(s->ioc));
- s->ioc = NULL;
- g_free(chr->filename);
- chr->filename = NULL;
- s->connected = 0;
-}
-
-static void tcp_chr_disconnect(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connected) {
- return;
- }
-
- tcp_chr_free_connection(chr);
-
- if (s->listen_ioc) {
- s->listen_tag = qio_channel_add_watch(
- QIO_CHANNEL(s->listen_ioc), G_IO_IN, tcp_chr_accept, chr, NULL);
- }
- chr->filename = SocketAddress_to_str("disconnected:", s->addr,
- s->is_listen, s->is_telnet);
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
- if (s->reconnect_time) {
- qemu_chr_socket_restart_timer(chr);
- }
-}
-
-static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- uint8_t buf[READ_BUF_LEN];
- int len, size;
-
- if (!s->connected || s->max_size <= 0) {
- return TRUE;
- }
- len = sizeof(buf);
- if (len > s->max_size)
- len = s->max_size;
- size = tcp_chr_recv(chr, (void *)buf, len);
- if (size == 0 || size == -1) {
- /* connection closed */
- tcp_chr_disconnect(chr);
- } else if (size > 0) {
- if (s->do_telnetopt)
- tcp_chr_process_IAC_bytes(chr, s, buf, &size);
- if (size > 0)
- qemu_chr_be_write(chr, buf, size);
- }
-
- return TRUE;
-}
-
-static int tcp_chr_sync_read(Chardev *chr, const uint8_t *buf, int len)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- int size;
-
- if (!s->connected) {
- return 0;
- }
-
- size = tcp_chr_recv(chr, (void *) buf, len);
- if (size == 0) {
- /* connection closed */
- tcp_chr_disconnect(chr);
- }
-
- return size;
-}
-
-static void tcp_chr_connect(void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
-
- g_free(chr->filename);
- chr->filename = sockaddr_to_str(
- &s->sioc->localAddr, s->sioc->localAddrLen,
- &s->sioc->remoteAddr, s->sioc->remoteAddrLen,
- s->is_listen, s->is_telnet);
-
- s->connected = 1;
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- tcp_chr_read_poll,
- tcp_chr_read,
- chr, NULL);
- }
- qemu_chr_be_generic_open(chr);
-}
-
-static void tcp_chr_update_read_handler(Chardev *chr,
- GMainContext *context)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (!s->connected) {
- return;
- }
-
- remove_fd_in_watch(chr);
- if (s->ioc) {
- chr->fd_in_tag = io_add_watch_poll(chr, s->ioc,
- tcp_chr_read_poll,
- tcp_chr_read, chr,
- context);
- }
-}
-
-typedef struct {
- Chardev *chr;
- char buf[12];
- size_t buflen;
-} TCPChardevTelnetInit;
-
-static gboolean tcp_chr_telnet_init_io(QIOChannel *ioc,
- GIOCondition cond G_GNUC_UNUSED,
- gpointer user_data)
-{
- TCPChardevTelnetInit *init = user_data;
- ssize_t ret;
-
- ret = qio_channel_write(ioc, init->buf, init->buflen, NULL);
- if (ret < 0) {
- if (ret == QIO_CHANNEL_ERR_BLOCK) {
- ret = 0;
- } else {
- tcp_chr_disconnect(init->chr);
- return FALSE;
- }
- }
- init->buflen -= ret;
-
- if (init->buflen == 0) {
- tcp_chr_connect(init->chr);
- return FALSE;
- }
-
- memmove(init->buf, init->buf + ret, init->buflen);
-
- return TRUE;
-}
-
-static void tcp_chr_telnet_init(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- TCPChardevTelnetInit *init = g_new0(TCPChardevTelnetInit, 1);
- size_t n = 0;
-
- init->chr = chr;
- init->buflen = 12;
-
-#define IACSET(x, a, b, c) \
- do { \
- x[n++] = a; \
- x[n++] = b; \
- x[n++] = c; \
- } while (0)
-
- /* Prep the telnet negotion to put telnet in binary,
- * no echo, single char mode */
- IACSET(init->buf, 0xff, 0xfb, 0x01); /* IAC WILL ECHO */
- IACSET(init->buf, 0xff, 0xfb, 0x03); /* IAC WILL Suppress go ahead */
- IACSET(init->buf, 0xff, 0xfb, 0x00); /* IAC WILL Binary */
- IACSET(init->buf, 0xff, 0xfd, 0x00); /* IAC DO Binary */
-
-#undef IACSET
-
- qio_channel_add_watch(
- s->ioc, G_IO_OUT,
- tcp_chr_telnet_init_io,
- init, NULL);
-}
-
-
-static void tcp_chr_tls_handshake(QIOTask *task,
- gpointer user_data)
-{
- Chardev *chr = user_data;
- SocketChardev *s = user_data;
-
- if (qio_task_propagate_error(task, NULL)) {
- tcp_chr_disconnect(chr);
- } else {
- if (s->do_telnetopt) {
- tcp_chr_telnet_init(chr);
- } else {
- tcp_chr_connect(chr);
- }
- }
-}
-
-
-static void tcp_chr_tls_init(Chardev *chr)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- QIOChannelTLS *tioc;
- Error *err = NULL;
- gchar *name;
-
- if (s->is_listen) {
- tioc = qio_channel_tls_new_server(
- s->ioc, s->tls_creds,
- NULL, /* XXX Use an ACL */
- &err);
- } else {
- tioc = qio_channel_tls_new_client(
- s->ioc, s->tls_creds,
- s->addr->u.inet.data->host,
- &err);
- }
- if (tioc == NULL) {
- error_free(err);
- tcp_chr_disconnect(chr);
- return;
- }
- name = g_strdup_printf("chardev-tls-%s-%s",
- s->is_listen ? "server" : "client",
- chr->label);
- qio_channel_set_name(QIO_CHANNEL(tioc), name);
- g_free(name);
- object_unref(OBJECT(s->ioc));
- s->ioc = QIO_CHANNEL(tioc);
-
- qio_channel_tls_handshake(tioc,
- tcp_chr_tls_handshake,
- chr,
- NULL);
-}
-
-
-static void tcp_chr_set_client_ioc_name(Chardev *chr,
- QIOChannelSocket *sioc)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- char *name;
- name = g_strdup_printf("chardev-tcp-%s-%s",
- s->is_listen ? "server" : "client",
- chr->label);
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- g_free(name);
-
-}
-
-static int tcp_chr_new_client(Chardev *chr, QIOChannelSocket *sioc)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
-
- if (s->ioc != NULL) {
- return -1;
- }
-
- s->ioc = QIO_CHANNEL(sioc);
- object_ref(OBJECT(sioc));
- s->sioc = sioc;
- object_ref(OBJECT(sioc));
-
- qio_channel_set_blocking(s->ioc, false, NULL);
-
- if (s->do_nodelay) {
- qio_channel_set_delay(s->ioc, false);
- }
- if (s->listen_tag) {
- g_source_remove(s->listen_tag);
- s->listen_tag = 0;
- }
-
- if (s->tls_creds) {
- tcp_chr_tls_init(chr);
- } else {
- if (s->do_telnetopt) {
- tcp_chr_telnet_init(chr);
- } else {
- tcp_chr_connect(chr);
- }
- }
-
- return 0;
-}
-
-
-static int tcp_chr_add_client(Chardev *chr, int fd)
-{
- int ret;
- QIOChannelSocket *sioc;
-
- sioc = qio_channel_socket_new_fd(fd, NULL);
- if (!sioc) {
- return -1;
- }
- tcp_chr_set_client_ioc_name(chr, sioc);
- ret = tcp_chr_new_client(chr, sioc);
- object_unref(OBJECT(sioc));
- return ret;
-}
-
-static gboolean tcp_chr_accept(QIOChannel *channel,
- GIOCondition cond,
- void *opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- QIOChannelSocket *sioc;
-
- sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(channel),
- NULL);
- if (!sioc) {
- return TRUE;
- }
-
- tcp_chr_new_client(chr, sioc);
-
- object_unref(OBJECT(sioc));
-
- return TRUE;
-}
-
-static int tcp_chr_wait_connected(Chardev *chr, Error **errp)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- QIOChannelSocket *sioc;
-
- /* It can't wait on s->connected, since it is set asynchronously
- * in TLS and telnet cases, only wait for an accepted socket */
- while (!s->ioc) {
- if (s->is_listen) {
- error_report("QEMU waiting for connection on: %s",
- chr->filename);
- qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), true, NULL);
- tcp_chr_accept(QIO_CHANNEL(s->listen_ioc), G_IO_IN, chr);
- qio_channel_set_blocking(QIO_CHANNEL(s->listen_ioc), false, NULL);
- } else {
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- if (qio_channel_socket_connect_sync(sioc, s->addr, errp) < 0) {
- object_unref(OBJECT(sioc));
- return -1;
- }
- tcp_chr_new_client(chr, sioc);
- object_unref(OBJECT(sioc));
- }
- }
-
- return 0;
-}
-
-static int qemu_chr_wait_connected(Chardev *chr, Error **errp)
-{
- ChardevClass *cc = CHARDEV_GET_CLASS(chr);
-
- if (cc->chr_wait_connected) {
- return cc->chr_wait_connected(chr, errp);
- }
-
- return 0;
-}
-
-int qemu_chr_fe_wait_connected(CharBackend *be, Error **errp)
-{
- if (!be->chr) {
- error_setg(errp, "missing associated backend");
- return -1;
- }
-
- return qemu_chr_wait_connected(be->chr, errp);
-}
-
-static void char_socket_finalize(Object *obj)
-{
- Chardev *chr = CHARDEV(obj);
- SocketChardev *s = SOCKET_CHARDEV(obj);
-
- tcp_chr_free_connection(chr);
-
- if (s->reconnect_timer) {
- g_source_remove(s->reconnect_timer);
- s->reconnect_timer = 0;
- }
- qapi_free_SocketAddress(s->addr);
- if (s->listen_tag) {
- g_source_remove(s->listen_tag);
- s->listen_tag = 0;
- }
- if (s->listen_ioc) {
- object_unref(OBJECT(s->listen_ioc));
- }
- if (s->tls_creds) {
- object_unref(OBJECT(s->tls_creds));
- }
-
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-
-static void qemu_chr_socket_connected(QIOTask *task, void *opaque)
-{
- QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(qio_task_get_source(task));
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(chr);
- Error *err = NULL;
-
- if (qio_task_propagate_error(task, &err)) {
- check_report_connect_error(chr, err);
- error_free(err);
- goto cleanup;
- }
-
- s->connect_err_reported = false;
- tcp_chr_new_client(chr, sioc);
-
- cleanup:
- object_unref(OBJECT(sioc));
-}
-
-
-QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
-{
- char host[65], port[33], width[8], height[8];
- int pos;
- const char *p;
- QemuOpts *opts;
- Error *local_err = NULL;
-
- opts = qemu_opts_create(qemu_find_opts("chardev"), label, 1, &local_err);
- if (local_err) {
- error_report_err(local_err);
- return NULL;
- }
-
- if (strstart(filename, "mon:", &p)) {
- filename = p;
- qemu_opt_set(opts, "mux", "on", &error_abort);
- if (strcmp(filename, "stdio") == 0) {
- /* Monitor is muxed to stdio: do not exit on Ctrl+C by default
- * but pass it to the guest. Handle this only for compat syntax,
- * for -chardev syntax we have special option for this.
- * This is what -nographic did, redirecting+muxing serial+monitor
- * to stdio causing Ctrl+C to be passed to guest. */
- qemu_opt_set(opts, "signal", "off", &error_abort);
- }
- }
-
- if (strcmp(filename, "null") == 0 ||
- strcmp(filename, "pty") == 0 ||
- strcmp(filename, "msmouse") == 0 ||
- strcmp(filename, "braille") == 0 ||
- strcmp(filename, "testdev") == 0 ||
- strcmp(filename, "stdio") == 0) {
- qemu_opt_set(opts, "backend", filename, &error_abort);
- return opts;
- }
- if (strstart(filename, "vc", &p)) {
- qemu_opt_set(opts, "backend", "vc", &error_abort);
- if (*p == ':') {
- if (sscanf(p+1, "%7[0-9]x%7[0-9]", width, height) == 2) {
- /* pixels */
- qemu_opt_set(opts, "width", width, &error_abort);
- qemu_opt_set(opts, "height", height, &error_abort);
- } else if (sscanf(p+1, "%7[0-9]Cx%7[0-9]C", width, height) == 2) {
- /* chars */
- qemu_opt_set(opts, "cols", width, &error_abort);
- qemu_opt_set(opts, "rows", height, &error_abort);
- } else {
- goto fail;
- }
- }
- return opts;
- }
- if (strcmp(filename, "con:") == 0) {
- qemu_opt_set(opts, "backend", "console", &error_abort);
- return opts;
- }
- if (strstart(filename, "COM", NULL)) {
- qemu_opt_set(opts, "backend", "serial", &error_abort);
- qemu_opt_set(opts, "path", filename, &error_abort);
- return opts;
- }
- if (strstart(filename, "file:", &p)) {
- qemu_opt_set(opts, "backend", "file", &error_abort);
- qemu_opt_set(opts, "path", p, &error_abort);
- return opts;
- }
- if (strstart(filename, "pipe:", &p)) {
- qemu_opt_set(opts, "backend", "pipe", &error_abort);
- qemu_opt_set(opts, "path", p, &error_abort);
- return opts;
+ if (strstart(filename, "pipe:", &p)) {
+ qemu_opt_set(opts, "backend", "pipe", &error_abort);
+ qemu_opt_set(opts, "path", p, &error_abort);
+ return opts;
}
if (strstart(filename, "tcp:", &p) ||
- strstart(filename, "telnet:", &p)) {
+ strstart(filename, "telnet:", &p) ||
+ strstart(filename, "tn3270:", &p)) {
if (sscanf(p, "%64[^:]:%32[^,]%n", host, port, &pos) < 2) {
host[0] = 0;
if (sscanf(p, ":%32[^,]%n", port, &pos) < 1)
goto fail;
}
}
- if (strstart(filename, "telnet:", &p))
+ if (strstart(filename, "telnet:", &p)) {
qemu_opt_set(opts, "telnet", "on", &error_abort);
+ } else if (strstart(filename, "tn3270:", &p)) {
+ qemu_opt_set(opts, "tn3270", "on", &error_abort);
+ }
return opts;
}
if (strstart(filename, "udp:", &p)) {
}
if (strstart(filename, "/dev/parport", NULL) ||
strstart(filename, "/dev/ppi", NULL)) {
- qemu_opt_set(opts, "backend", "parport", &error_abort);
+ qemu_opt_set(opts, "backend", "parallel", &error_abort);
qemu_opt_set(opts, "path", filename, &error_abort);
return opts;
}
if (strstart(filename, "/dev/", NULL)) {
- qemu_opt_set(opts, "backend", "tty", &error_abort);
+ qemu_opt_set(opts, "backend", "serial", &error_abort);
qemu_opt_set(opts, "path", filename, &error_abort);
return opts;
}
const char *logfile = qemu_opt_get(opts, "logfile");
backend->has_logfile = logfile != NULL;
- backend->logfile = logfile ? g_strdup(logfile) : NULL;
+ backend->logfile = g_strdup(logfile);
backend->has_logappend = true;
backend->logappend = qemu_opt_get_bool(opts, "logappend", false);
}
-
-static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- const char *path = qemu_opt_get(opts, "path");
- ChardevFile *file;
-
- backend->type = CHARDEV_BACKEND_KIND_FILE;
- if (path == NULL) {
- error_setg(errp, "chardev: file: no filename given");
- return;
- }
- file = backend->u.file.data = g_new0(ChardevFile, 1);
- qemu_chr_parse_common(opts, qapi_ChardevFile_base(file));
- file->out = g_strdup(path);
-
- file->has_append = true;
- file->append = qemu_opt_get_bool(opts, "append", false);
-}
-
-static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- ChardevStdio *stdio;
-
- backend->type = CHARDEV_BACKEND_KIND_STDIO;
- stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1);
- qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio));
- stdio->has_signal = true;
- stdio->signal = qemu_opt_get_bool(opts, "signal", true);
-}
-
-static void char_stdio_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_stdio;
- cc->open = qemu_chr_open_stdio;
-#ifdef _WIN32
- cc->chr_write = win_stdio_write;
- cc->chr_set_echo = qemu_chr_set_echo_win_stdio;
-#else
- cc->chr_set_echo = qemu_chr_set_echo_stdio;
-#endif
-}
-
-static const TypeInfo char_stdio_type_info = {
- .name = TYPE_CHARDEV_STDIO,
-#ifdef _WIN32
- .parent = TYPE_CHARDEV_WIN_STDIO,
-#else
- .parent = TYPE_CHARDEV_FD,
- .instance_finalize = char_stdio_finalize,
-#endif
- .class_init = char_stdio_class_init,
-};
-
-#ifdef HAVE_CHARDEV_SERIAL
-static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- const char *device = qemu_opt_get(opts, "path");
- ChardevHostdev *serial;
-
- backend->type = CHARDEV_BACKEND_KIND_SERIAL;
- if (device == NULL) {
- error_setg(errp, "chardev: serial/tty: no device path given");
- return;
- }
- serial = backend->u.serial.data = g_new0(ChardevHostdev, 1);
- qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(serial));
- serial->device = g_strdup(device);
-}
-#endif
-
-#ifdef HAVE_CHARDEV_PARPORT
-static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- const char *device = qemu_opt_get(opts, "path");
- ChardevHostdev *parallel;
-
- backend->type = CHARDEV_BACKEND_KIND_PARALLEL;
- if (device == NULL) {
- error_setg(errp, "chardev: parallel: no device path given");
- return;
- }
- parallel = backend->u.parallel.data = g_new0(ChardevHostdev, 1);
- qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(parallel));
- parallel->device = g_strdup(device);
-}
-#endif
-
-static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- const char *device = qemu_opt_get(opts, "path");
- ChardevHostdev *dev;
-
- backend->type = CHARDEV_BACKEND_KIND_PIPE;
- if (device == NULL) {
- error_setg(errp, "chardev: pipe: no device path given");
- return;
- }
- dev = backend->u.pipe.data = g_new0(ChardevHostdev, 1);
- qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(dev));
- dev->device = g_strdup(device);
-}
-
-static void char_pipe_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_pipe;
- cc->open = qemu_chr_open_pipe;
-}
-
-static const TypeInfo char_pipe_type_info = {
- .name = TYPE_CHARDEV_PIPE,
-#ifdef _WIN32
- .parent = TYPE_CHARDEV_WIN,
-#else
- .parent = TYPE_CHARDEV_FD,
-#endif
- .class_init = char_pipe_class_init,
-};
-
-static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- bool is_listen = qemu_opt_get_bool(opts, "server", false);
- bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true);
- bool is_telnet = qemu_opt_get_bool(opts, "telnet", false);
- bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true);
- int64_t reconnect = qemu_opt_get_number(opts, "reconnect", 0);
- const char *path = qemu_opt_get(opts, "path");
- const char *host = qemu_opt_get(opts, "host");
- const char *port = qemu_opt_get(opts, "port");
- const char *tls_creds = qemu_opt_get(opts, "tls-creds");
- SocketAddress *addr;
- ChardevSocket *sock;
-
- backend->type = CHARDEV_BACKEND_KIND_SOCKET;
- if (!path) {
- if (!host) {
- error_setg(errp, "chardev: socket: no host given");
- return;
- }
- if (!port) {
- error_setg(errp, "chardev: socket: no port given");
- return;
- }
- } else {
- if (tls_creds) {
- error_setg(errp, "TLS can only be used over TCP socket");
- return;
- }
- }
-
- sock = backend->u.socket.data = g_new0(ChardevSocket, 1);
- qemu_chr_parse_common(opts, qapi_ChardevSocket_base(sock));
-
- sock->has_nodelay = true;
- sock->nodelay = do_nodelay;
- sock->has_server = true;
- sock->server = is_listen;
- sock->has_telnet = true;
- sock->telnet = is_telnet;
- sock->has_wait = true;
- sock->wait = is_waitconnect;
- sock->has_reconnect = true;
- sock->reconnect = reconnect;
- sock->tls_creds = g_strdup(tls_creds);
-
- addr = g_new0(SocketAddress, 1);
- if (path) {
- UnixSocketAddress *q_unix;
- addr->type = SOCKET_ADDRESS_KIND_UNIX;
- q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
- q_unix->path = g_strdup(path);
- } else {
- addr->type = SOCKET_ADDRESS_KIND_INET;
- addr->u.inet.data = g_new(InetSocketAddress, 1);
- *addr->u.inet.data = (InetSocketAddress) {
- .host = g_strdup(host),
- .port = g_strdup(port),
- .has_to = qemu_opt_get(opts, "to"),
- .to = qemu_opt_get_number(opts, "to", 0),
- .has_ipv4 = qemu_opt_get(opts, "ipv4"),
- .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
- .has_ipv6 = qemu_opt_get(opts, "ipv6"),
- .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
- };
- }
- sock->addr = addr;
-}
-
-static void qemu_chr_parse_udp(QemuOpts *opts, ChardevBackend *backend,
- Error **errp)
-{
- const char *host = qemu_opt_get(opts, "host");
- const char *port = qemu_opt_get(opts, "port");
- const char *localaddr = qemu_opt_get(opts, "localaddr");
- const char *localport = qemu_opt_get(opts, "localport");
- bool has_local = false;
- SocketAddress *addr;
- ChardevUdp *udp;
-
- backend->type = CHARDEV_BACKEND_KIND_UDP;
- if (host == NULL || strlen(host) == 0) {
- host = "localhost";
- }
- if (port == NULL || strlen(port) == 0) {
- error_setg(errp, "chardev: udp: remote port not specified");
- return;
- }
- if (localport == NULL || strlen(localport) == 0) {
- localport = "0";
- } else {
- has_local = true;
- }
- if (localaddr == NULL || strlen(localaddr) == 0) {
- localaddr = "";
- } else {
- has_local = true;
- }
-
- udp = backend->u.udp.data = g_new0(ChardevUdp, 1);
- qemu_chr_parse_common(opts, qapi_ChardevUdp_base(udp));
-
- addr = g_new0(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_KIND_INET;
- addr->u.inet.data = g_new(InetSocketAddress, 1);
- *addr->u.inet.data = (InetSocketAddress) {
- .host = g_strdup(host),
- .port = g_strdup(port),
- .has_ipv4 = qemu_opt_get(opts, "ipv4"),
- .ipv4 = qemu_opt_get_bool(opts, "ipv4", 0),
- .has_ipv6 = qemu_opt_get(opts, "ipv6"),
- .ipv6 = qemu_opt_get_bool(opts, "ipv6", 0),
- };
- udp->remote = addr;
-
- if (has_local) {
- udp->has_local = true;
- addr = g_new0(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_KIND_INET;
- addr->u.inet.data = g_new(InetSocketAddress, 1);
- *addr->u.inet.data = (InetSocketAddress) {
- .host = g_strdup(localaddr),
- .port = g_strdup(localport),
- };
- udp->local = addr;
- }
-}
-
static const ChardevClass *char_get_class(const char *driver, Error **errp)
{
ObjectClass *oc;
return cc;
}
-static Chardev *qemu_chardev_add(const char *id, const char *typename,
- ChardevBackend *backend, Error **errp)
-{
- Chardev *chr;
-
- chr = qemu_chr_find(id);
- if (chr) {
- error_setg(errp, "Chardev '%s' already exists", id);
- return NULL;
- }
-
- chr = qemu_chardev_new(id, typename, backend, errp);
- if (!chr) {
- return NULL;
- }
-
- QTAILQ_INSERT_TAIL(&chardevs, chr, next);
- return chr;
-}
-
static const struct ChardevAlias {
const char *typename;
const char *alias;
object_class_foreach(chardev_class_foreach, TYPE_CHARDEV, false, &fe);
- for (i = 0; i < ARRAY_SIZE(chardev_alias_table); i++) {
+ for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) {
fn(chardev_alias_table[i].alias, opaque);
}
}
g_string_append_printf(str, "\n%s", name);
}
-Chardev *qemu_chr_new_from_opts(QemuOpts *opts,
- Error **errp)
+static const char *chardev_alias_translate(const char *name)
+{
+ int i;
+ for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) {
+ if (g_strcmp0(chardev_alias_table[i].alias, name) == 0) {
+ return chardev_alias_table[i].typename;
+ }
+ }
+ return name;
+}
+
+ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp)
{
Error *local_err = NULL;
const ChardevClass *cc;
- Chardev *chr;
- int i;
ChardevBackend *backend = NULL;
- const char *name = qemu_opt_get(opts, "backend");
- const char *id = qemu_opts_id(opts);
- char *bid = NULL;
+ const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend"));
if (name == NULL) {
error_setg(errp, "chardev: \"%s\" missing backend",
return NULL;
}
- if (is_help_option(name)) {
+ cc = char_get_class(name, errp);
+ if (cc == NULL) {
+ return NULL;
+ }
+
+ backend = g_new0(ChardevBackend, 1);
+ backend->type = CHARDEV_BACKEND_KIND_NULL;
+
+ if (cc->parse) {
+ cc->parse(opts, backend, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ qapi_free_ChardevBackend(backend);
+ return NULL;
+ }
+ } else {
+ ChardevCommon *ccom = g_new0(ChardevCommon, 1);
+ qemu_chr_parse_common(opts, ccom);
+ backend->u.null.data = ccom; /* Any ChardevCommon member would work */
+ }
+
+ return backend;
+}
+
+Chardev *qemu_chr_new_from_opts(QemuOpts *opts, Error **errp)
+{
+ const ChardevClass *cc;
+ Chardev *chr = NULL;
+ ChardevBackend *backend = NULL;
+ const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend"));
+ const char *id = qemu_opts_id(opts);
+ char *bid = NULL;
+
+ if (name && is_help_option(name)) {
GString *str = g_string_new("");
chardev_name_foreach(help_string_append, str);
return NULL;
}
- for (i = 0; i < ARRAY_SIZE(chardev_alias_table); i++) {
- if (g_strcmp0(chardev_alias_table[i].alias, name) == 0) {
- name = chardev_alias_table[i].typename;
- break;
- }
+ backend = qemu_chr_parse_opts(opts, errp);
+ if (backend == NULL) {
+ return NULL;
}
cc = char_get_class(name, errp);
if (cc == NULL) {
- return NULL;
+ goto out;
}
- backend = g_new0(ChardevBackend, 1);
- backend->type = CHARDEV_BACKEND_KIND_NULL;
-
if (qemu_opt_get_bool(opts, "mux", 0)) {
bid = g_strdup_printf("%s-base", id);
}
- chr = NULL;
- if (cc->parse) {
- cc->parse(opts, backend, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- goto out;
- }
- } else {
- ChardevCommon *ccom = g_new0(ChardevCommon, 1);
- qemu_chr_parse_common(opts, ccom);
- backend->u.null.data = ccom; /* Any ChardevCommon member would work */
- }
-
- chr = qemu_chardev_add(bid ? bid : id,
+ chr = qemu_chardev_new(bid ? bid : id,
object_class_get_name(OBJECT_CLASS(cc)),
backend, errp);
+
if (chr == NULL) {
goto out;
}
backend->type = CHARDEV_BACKEND_KIND_MUX;
backend->u.mux.data = g_new0(ChardevMux, 1);
backend->u.mux.data->chardev = g_strdup(bid);
- mux = qemu_chardev_add(id, TYPE_CHARDEV_MUX, backend, errp);
+ mux = qemu_chardev_new(id, TYPE_CHARDEV_MUX, backend, errp);
if (mux == NULL) {
- qemu_chr_delete(chr);
+ object_unparent(OBJECT(chr));
chr = NULL;
goto out;
}
if (qemu_chr_replay(chr) && CHARDEV_GET_CLASS(chr)->chr_ioctl) {
error_report("Replay: ioctl is not supported "
"for serial devices yet");
- }
- replay_register_char_driver(chr);
- }
- return chr;
-}
-
-void qemu_chr_fe_set_echo(CharBackend *be, bool echo)
-{
- Chardev *chr = be->chr;
-
- if (chr && CHARDEV_GET_CLASS(chr)->chr_set_echo) {
- CHARDEV_GET_CLASS(chr)->chr_set_echo(chr, echo);
- }
-}
-
-void qemu_chr_fe_set_open(CharBackend *be, int fe_open)
-{
- Chardev *chr = be->chr;
-
- if (!chr) {
- return;
- }
-
- if (be->fe_open == fe_open) {
- return;
- }
- be->fe_open = fe_open;
- if (CHARDEV_GET_CLASS(chr)->chr_set_fe_open) {
- CHARDEV_GET_CLASS(chr)->chr_set_fe_open(chr, fe_open);
+ }
+ replay_register_char_driver(chr);
}
+ return chr;
}
-guint qemu_chr_fe_add_watch(CharBackend *be, GIOCondition cond,
- GIOFunc func, void *user_data)
+static int qmp_query_chardev_foreach(Object *obj, void *data)
{
- Chardev *s = be->chr;
- GSource *src;
- guint tag;
-
- if (!s || CHARDEV_GET_CLASS(s)->chr_add_watch == NULL) {
- return 0;
- }
-
- src = CHARDEV_GET_CLASS(s)->chr_add_watch(s, cond);
- if (!src) {
- return 0;
- }
-
- g_source_set_callback(src, (GSourceFunc)func, user_data, NULL);
- tag = g_source_attach(src, NULL);
- g_source_unref(src);
-
- return tag;
-}
+ Chardev *chr = CHARDEV(obj);
+ ChardevInfoList **list = data;
+ ChardevInfoList *info = g_malloc0(sizeof(*info));
-void qemu_chr_fe_disconnect(CharBackend *be)
-{
- Chardev *chr = be->chr;
+ info->value = g_malloc0(sizeof(*info->value));
+ info->value->label = g_strdup(chr->label);
+ info->value->filename = g_strdup(chr->filename);
+ info->value->frontend_open = chr->be && chr->be->fe_open;
- if (chr && CHARDEV_GET_CLASS(chr)->chr_disconnect) {
- CHARDEV_GET_CLASS(chr)->chr_disconnect(chr);
- }
-}
+ info->next = *list;
+ *list = info;
-void qemu_chr_delete(Chardev *chr)
-{
- QTAILQ_REMOVE(&chardevs, chr, next);
- object_unref(OBJECT(chr));
+ return 0;
}
ChardevInfoList *qmp_query_chardev(Error **errp)
{
ChardevInfoList *chr_list = NULL;
- Chardev *chr;
- QTAILQ_FOREACH(chr, &chardevs, next) {
- ChardevInfoList *info = g_malloc0(sizeof(*info));
- info->value = g_malloc0(sizeof(*info->value));
- info->value->label = g_strdup(chr->label);
- info->value->filename = g_strdup(chr->filename);
- info->value->frontend_open = chr->be && chr->be->fe_open;
-
- info->next = chr_list;
- chr_list = info;
- }
+ object_child_foreach(get_chardevs_root(),
+ qmp_query_chardev_foreach, &chr_list);
return chr_list;
}
Chardev *qemu_chr_find(const char *name)
{
- Chardev *chr;
+ Object *obj = object_resolve_path_component(get_chardevs_root(), name);
- QTAILQ_FOREACH(chr, &chardevs, next) {
- if (strcmp(chr->label, name) != 0)
- continue;
- return chr;
- }
- return NULL;
+ return obj ? CHARDEV(obj) : NULL;
}
QemuOptsList qemu_chardev_opts = {
},{
.name = "telnet",
.type = QEMU_OPT_BOOL,
+ },{
+ .name = "tn3270",
+ .type = QEMU_OPT_BOOL,
},{
.name = "tls-creds",
.type = QEMU_OPT_STRING,
},
};
-#ifdef _WIN32
-
-static void qmp_chardev_open_file(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevFile *file = backend->u.file.data;
- HANDLE out;
- DWORD accessmode;
- DWORD flags;
-
- if (file->has_in) {
- error_setg(errp, "input file not supported");
- return;
- }
-
- if (file->has_append && file->append) {
- /* Append to file if it already exists. */
- accessmode = FILE_GENERIC_WRITE & ~FILE_WRITE_DATA;
- flags = OPEN_ALWAYS;
- } else {
- /* Truncate file if it already exists. */
- accessmode = GENERIC_WRITE;
- flags = CREATE_ALWAYS;
- }
-
- out = CreateFile(file->out, accessmode, FILE_SHARE_READ, NULL, flags,
- FILE_ATTRIBUTE_NORMAL, NULL);
- if (out == INVALID_HANDLE_VALUE) {
- error_setg(errp, "open %s failed", file->out);
- return;
- }
-
- qemu_chr_open_win_file(chr, out);
-}
-
-static void qmp_chardev_open_serial(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevHostdev *serial = backend->u.serial.data;
-
- win_chr_init(chr, serial->device, errp);
-}
-
-#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_file_open(errp, errno, src);
- }
- return fd;
-}
-
-static void qmp_chardev_open_file(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevFile *file = backend->u.file.data;
- int flags, in = -1, out;
-
- flags = O_WRONLY | O_CREAT | O_BINARY;
- if (file->has_append && file->append) {
- flags |= O_APPEND;
- } else {
- flags |= O_TRUNC;
- }
-
- out = qmp_chardev_open_file_source(file->out, flags, errp);
- if (out < 0) {
- return;
- }
-
- if (file->has_in) {
- flags = O_RDONLY;
- in = qmp_chardev_open_file_source(file->in, flags, errp);
- if (in < 0) {
- qemu_close(out);
- return;
- }
- }
-
- qemu_chr_open_fd(chr, in, out);
-}
-
-#ifdef HAVE_CHARDEV_SERIAL
-static void qmp_chardev_open_serial(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevHostdev *serial = backend->u.serial.data;
- int fd;
-
- fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp);
- if (fd < 0) {
- return;
- }
- qemu_set_nonblock(fd);
- tty_serial_init(fd, 115200, 'N', 8, 1);
-
- qemu_chr_open_fd(chr, fd, fd);
-}
-#endif
-
-#ifdef HAVE_CHARDEV_PARPORT
-static void qmp_chardev_open_parallel(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevHostdev *parallel = backend->u.parallel.data;
- int fd;
-
- fd = qmp_chardev_open_file_source(parallel->device, O_RDWR, errp);
- if (fd < 0) {
- return;
- }
- qemu_chr_open_pp_fd(chr, fd, be_opened, errp);
-}
-
-static void char_parallel_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_parallel;
- cc->open = qmp_chardev_open_parallel;
-#if defined(__linux__)
- cc->chr_ioctl = pp_ioctl;
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
- cc->chr_ioctl = pp_ioctl;
-#endif
-}
-
-static void char_parallel_finalize(Object *obj)
-{
-#if defined(__linux__)
- Chardev *chr = CHARDEV(obj);
- ParallelChardev *drv = PARALLEL_CHARDEV(chr);
- int fd = drv->fd;
-
- pp_hw_mode(drv, IEEE1284_MODE_COMPAT);
- ioctl(fd, PPRELEASE);
- close(fd);
- qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
- /* FIXME: close fd? */
-#endif
-}
-
-static const TypeInfo char_parallel_type_info = {
- .name = TYPE_CHARDEV_PARALLEL,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(ParallelChardev),
- .instance_finalize = char_parallel_finalize,
- .class_init = char_parallel_class_init,
-};
-#endif
-
-#endif /* WIN32 */
-
-static void char_file_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_file_out;
- cc->open = qmp_chardev_open_file;
-}
-
-static const TypeInfo char_file_type_info = {
- .name = TYPE_CHARDEV_FILE,
-#ifdef _WIN32
- .parent = TYPE_CHARDEV_WIN,
-#else
- .parent = TYPE_CHARDEV_FD,
-#endif
- .class_init = char_file_class_init,
-};
-
-#ifdef HAVE_CHARDEV_SERIAL
-
-static void char_serial_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_serial;
- cc->open = qmp_chardev_open_serial;
-#ifndef _WIN32
- cc->chr_ioctl = tty_serial_ioctl;
-#endif
-}
-
-static const TypeInfo char_serial_type_info = {
- .name = TYPE_CHARDEV_SERIAL,
-#ifdef _WIN32
- .parent = TYPE_CHARDEV_WIN,
-#else
- .parent = TYPE_CHARDEV_FD,
-#endif
- .class_init = char_serial_class_init,
-};
-#endif
-
-static gboolean socket_reconnect_timeout(gpointer opaque)
-{
- Chardev *chr = CHARDEV(opaque);
- SocketChardev *s = SOCKET_CHARDEV(opaque);
- QIOChannelSocket *sioc;
-
- s->reconnect_timer = 0;
-
- if (chr->be_open) {
- return false;
- }
-
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- qio_channel_socket_connect_async(sioc, s->addr,
- qemu_chr_socket_connected,
- chr, NULL);
-
- return false;
-}
-
-static void qmp_chardev_open_socket(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- SocketChardev *s = SOCKET_CHARDEV(chr);
- ChardevSocket *sock = backend->u.socket.data;
- 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;
- int64_t reconnect = sock->has_reconnect ? sock->reconnect : 0;
- QIOChannelSocket *sioc = NULL;
-
- s->is_unix = addr->type == SOCKET_ADDRESS_KIND_UNIX;
- s->is_listen = is_listen;
- s->is_telnet = is_telnet;
- s->do_nodelay = do_nodelay;
- if (sock->tls_creds) {
- Object *creds;
- creds = object_resolve_path_component(
- object_get_objects_root(), sock->tls_creds);
- if (!creds) {
- error_setg(errp, "No TLS credentials with id '%s'",
- sock->tls_creds);
- goto error;
- }
- s->tls_creds = (QCryptoTLSCreds *)
- object_dynamic_cast(creds,
- TYPE_QCRYPTO_TLS_CREDS);
- if (!s->tls_creds) {
- error_setg(errp, "Object with id '%s' is not TLS credentials",
- sock->tls_creds);
- goto error;
- }
- object_ref(OBJECT(s->tls_creds));
- if (is_listen) {
- if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
- error_setg(errp, "%s",
- "Expected TLS credentials for server endpoint");
- goto error;
- }
- } else {
- if (s->tls_creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_CLIENT) {
- error_setg(errp, "%s",
- "Expected TLS credentials for client endpoint");
- goto error;
- }
- }
- }
-
- s->addr = QAPI_CLONE(SocketAddress, sock->addr);
-
- qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE);
- if (s->is_unix) {
- qemu_chr_set_feature(chr, QEMU_CHAR_FEATURE_FD_PASS);
- }
-
- /* be isn't opened until we get a connection */
- *be_opened = false;
-
- chr->filename = SocketAddress_to_str("disconnected:",
- addr, is_listen, is_telnet);
-
- if (is_listen) {
- if (is_telnet) {
- s->do_telnetopt = 1;
- }
- } else if (reconnect > 0) {
- s->reconnect_time = reconnect;
- }
-
- if (s->reconnect_time) {
- sioc = qio_channel_socket_new();
- tcp_chr_set_client_ioc_name(chr, sioc);
- qio_channel_socket_connect_async(sioc, s->addr,
- qemu_chr_socket_connected,
- chr, NULL);
- } else {
- if (s->is_listen) {
- char *name;
- sioc = qio_channel_socket_new();
-
- name = g_strdup_printf("chardev-tcp-listener-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- g_free(name);
-
- if (qio_channel_socket_listen_sync(sioc, s->addr, errp) < 0) {
- goto error;
- }
- s->listen_ioc = sioc;
- if (is_waitconnect &&
- qemu_chr_wait_connected(chr, errp) < 0) {
- return;
- }
- if (!s->ioc) {
- s->listen_tag = qio_channel_add_watch(
- QIO_CHANNEL(s->listen_ioc), G_IO_IN,
- tcp_chr_accept, chr, NULL);
- }
- } else if (qemu_chr_wait_connected(chr, errp) < 0) {
- goto error;
- }
- }
-
- return;
-
-error:
- if (sioc) {
- object_unref(OBJECT(sioc));
- }
-}
-
-static void char_socket_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_socket;
- cc->open = qmp_chardev_open_socket;
- cc->chr_wait_connected = tcp_chr_wait_connected;
- cc->chr_write = tcp_chr_write;
- cc->chr_sync_read = tcp_chr_sync_read;
- cc->chr_disconnect = tcp_chr_disconnect;
- cc->get_msgfds = tcp_get_msgfds;
- cc->set_msgfds = tcp_set_msgfds;
- cc->chr_add_client = tcp_chr_add_client;
- cc->chr_add_watch = tcp_chr_add_watch;
- cc->chr_update_read_handler = tcp_chr_update_read_handler;
-}
-
-static const TypeInfo char_socket_type_info = {
- .name = TYPE_CHARDEV_SOCKET,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(SocketChardev),
- .instance_finalize = char_socket_finalize,
- .class_init = char_socket_class_init,
-};
-
-static void qmp_chardev_open_udp(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- ChardevUdp *udp = backend->u.udp.data;
- QIOChannelSocket *sioc = qio_channel_socket_new();
- char *name;
- UdpChardev *s = UDP_CHARDEV(chr);
-
- if (qio_channel_socket_dgram_sync(sioc,
- udp->local, udp->remote,
- errp) < 0) {
- object_unref(OBJECT(sioc));
- return;
- }
-
- name = g_strdup_printf("chardev-udp-%s", chr->label);
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- g_free(name);
-
- s->ioc = QIO_CHANNEL(sioc);
- /* be isn't opened until we get a connection */
- *be_opened = false;
-}
-
-static void char_udp_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->parse = qemu_chr_parse_udp;
- cc->open = qmp_chardev_open_udp;
- cc->chr_write = udp_chr_write;
- cc->chr_update_read_handler = udp_chr_update_read_handler;
-}
-
-static const TypeInfo char_udp_type_info = {
- .name = TYPE_CHARDEV_UDP,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(UdpChardev),
- .instance_finalize = char_udp_finalize,
- .class_init = char_udp_class_init,
-};
-
bool qemu_chr_has_feature(Chardev *chr,
ChardevFeature feature)
{
}
Chardev *qemu_chardev_new(const char *id, const char *typename,
- ChardevBackend *backend, Error **errp)
+ ChardevBackend *backend,
+ Error **errp)
{
+ Object *obj;
Chardev *chr = NULL;
Error *local_err = NULL;
bool be_opened = true;
assert(g_str_has_prefix(typename, "chardev-"));
- chr = CHARDEV(object_new(typename));
+ obj = object_new(typename);
+ chr = CHARDEV(obj);
chr->label = g_strdup(id);
qemu_char_open(chr, backend, &be_opened, &local_err);
if (local_err) {
- error_propagate(errp, local_err);
- object_unref(OBJECT(chr));
- return NULL;
+ goto end;
}
if (!chr->filename) {
qemu_chr_be_event(chr, CHR_EVENT_OPENED);
}
+ if (id) {
+ object_property_add_child(get_chardevs_root(), id, obj, &local_err);
+ if (local_err) {
+ goto end;
+ }
+ object_unref(obj);
+ }
+
+end:
+ if (local_err) {
+ error_propagate(errp, local_err);
+ object_unref(obj);
+ return NULL;
+ }
+
return chr;
}
return NULL;
}
- chr = qemu_chardev_add(id, object_class_get_name(OBJECT_CLASS(cc)),
+ chr = qemu_chardev_new(id, object_class_get_name(OBJECT_CLASS(cc)),
backend, errp);
if (!chr) {
return NULL;
return ret;
}
+ChardevReturn *qmp_chardev_change(const char *id, ChardevBackend *backend,
+ Error **errp)
+{
+ CharBackend *be;
+ const ChardevClass *cc;
+ Chardev *chr, *chr_new;
+ bool closed_sent = false;
+ ChardevReturn *ret;
+
+ chr = qemu_chr_find(id);
+ if (!chr) {
+ error_setg(errp, "Chardev '%s' does not exist", id);
+ return NULL;
+ }
+
+ if (CHARDEV_IS_MUX(chr)) {
+ error_setg(errp, "Mux device hotswap not supported yet");
+ return NULL;
+ }
+
+ if (qemu_chr_replay(chr)) {
+ error_setg(errp,
+ "Chardev '%s' cannot be changed in record/replay mode", id);
+ return NULL;
+ }
+
+ be = chr->be;
+ if (!be) {
+ /* easy case */
+ object_unparent(OBJECT(chr));
+ return qmp_chardev_add(id, backend, errp);
+ }
+
+ if (!be->chr_be_change) {
+ error_setg(errp, "Chardev user does not support chardev hotswap");
+ return NULL;
+ }
+
+ cc = char_get_class(ChardevBackendKind_lookup[backend->type], errp);
+ if (!cc) {
+ return NULL;
+ }
+
+ chr_new = qemu_chardev_new(NULL, object_class_get_name(OBJECT_CLASS(cc)),
+ backend, errp);
+ if (!chr_new) {
+ return NULL;
+ }
+ chr_new->label = g_strdup(id);
+
+ if (chr->be_open && !chr_new->be_open) {
+ qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
+ closed_sent = true;
+ }
+
+ chr->be = NULL;
+ qemu_chr_fe_init(be, chr_new, &error_abort);
+
+ if (be->chr_be_change(be->opaque) < 0) {
+ error_setg(errp, "Chardev '%s' change failed", chr_new->label);
+ chr_new->be = NULL;
+ qemu_chr_fe_init(be, chr, &error_abort);
+ if (closed_sent) {
+ qemu_chr_be_event(chr, CHR_EVENT_OPENED);
+ }
+ object_unref(OBJECT(chr_new));
+ return NULL;
+ }
+
+ object_unparent(OBJECT(chr));
+ object_property_add_child(get_chardevs_root(), chr_new->label,
+ OBJECT(chr_new), &error_abort);
+ object_unref(OBJECT(chr_new));
+
+ ret = g_new0(ChardevReturn, 1);
+ if (CHARDEV_IS_PTY(chr_new)) {
+ ret->pty = g_strdup(chr_new->filename + 4);
+ ret->has_pty = true;
+ }
+
+ return ret;
+}
+
void qmp_chardev_remove(const char *id, Error **errp)
{
Chardev *chr;
"Chardev '%s' cannot be unplugged in record/replay mode", id);
return;
}
- qemu_chr_delete(chr);
+ object_unparent(OBJECT(chr));
}
-void qemu_chr_cleanup(void)
+void qmp_chardev_send_break(const char *id, Error **errp)
{
- Chardev *chr, *tmp;
+ Chardev *chr;
- QTAILQ_FOREACH_SAFE(chr, &chardevs, next, tmp) {
- qemu_chr_delete(chr);
+ chr = qemu_chr_find(id);
+ if (chr == NULL) {
+ error_setg(errp, "Chardev '%s' not found", id);
+ return;
}
+ qemu_chr_be_event(chr, CHR_EVENT_BREAK);
+}
+
+void qemu_chr_cleanup(void)
+{
+ object_unparent(get_chardevs_root());
}
static void register_types(void)
{
type_register_static(&char_type_info);
-#ifndef _WIN32
- type_register_static(&char_fd_type_info);
-#else
- type_register_static(&char_win_type_info);
- type_register_static(&char_win_stdio_type_info);
-#endif
- type_register_static(&char_socket_type_info);
- type_register_static(&char_udp_type_info);
- type_register_static(&char_file_type_info);
- type_register_static(&char_stdio_type_info);
-#ifdef HAVE_CHARDEV_SERIAL
- type_register_static(&char_serial_type_info);
-#endif
-#ifdef HAVE_CHARDEV_PARPORT
- type_register_static(&char_parallel_type_info);
-#endif
-#ifdef HAVE_CHARDEV_PTY
- type_register_static(&char_pty_type_info);
-#endif
-#ifdef _WIN32
- type_register_static(&char_console_type_info);
-#endif
- type_register_static(&char_pipe_type_info);
/* this must be done after machine init, since we register FEs with muxes
* as part of realize functions like serial_isa_realizefn when -nographic
projects / qemu.git / blobdiff