-#include "config-host.h"
-#include "trace.h"
+#include "qemu/osdep.h"
+#include "trace-root.h"
#include "ui/qemu-spice.h"
+#include "sysemu/char.h"
+#include "qemu/error-report.h"
#include <spice.h>
-#include <spice-experimental.h>
+#include <spice/protocol.h>
-#include "osdep.h"
-#define dprintf(_scd, _level, _fmt, ...) \
- do { \
- static unsigned __dprintf_counter = 0; \
- if (_scd->debug >= _level) { \
- fprintf(stderr, "scd: %3d: " _fmt, ++__dprintf_counter, ## __VA_ARGS__);\
- } \
- } while (0)
+typedef struct SpiceChardev {
+ Chardev parent;
-#define VMC_MAX_HOST_WRITE 2048
-
-typedef struct SpiceCharDriver {
- CharDriverState* chr;
- SpiceCharDeviceInstance sin;
- char *subtype;
+ SpiceCharDeviceInstance sin;
bool active;
- uint8_t *buffer;
- uint8_t *datapos;
- ssize_t bufsize, datalen;
- uint32_t debug;
-} SpiceCharDriver;
+ bool blocked;
+ const uint8_t *datapos;
+ int datalen;
+ QLIST_ENTRY(SpiceChardev) next;
+} SpiceChardev;
+
+#define TYPE_CHARDEV_SPICE "chardev-spice"
+#define TYPE_CHARDEV_SPICEVMC "chardev-spicevmc"
+#define TYPE_CHARDEV_SPICEPORT "chardev-spiceport"
+
+#define SPICE_CHARDEV(obj) OBJECT_CHECK(SpiceChardev, (obj), TYPE_CHARDEV_SPICE)
+
+typedef struct SpiceCharSource {
+ GSource source;
+ SpiceChardev *scd;
+} SpiceCharSource;
+
+static QLIST_HEAD(, SpiceChardev) spice_chars =
+ QLIST_HEAD_INITIALIZER(spice_chars);
static int vmc_write(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len)
{
- SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin);
+ SpiceChardev *scd = container_of(sin, SpiceChardev, sin);
+ Chardev *chr = CHARDEV(scd);
ssize_t out = 0;
ssize_t last_out;
uint8_t* p = (uint8_t*)buf;
while (len > 0) {
- last_out = MIN(len, VMC_MAX_HOST_WRITE);
- if (qemu_chr_can_read(scd->chr) < last_out) {
+ int can_write = qemu_chr_be_can_write(chr);
+ last_out = MIN(len, can_write);
+ if (last_out <= 0) {
break;
}
- qemu_chr_read(scd->chr, p, last_out);
+ qemu_chr_be_write(chr, p, last_out);
out += last_out;
len -= last_out;
p += last_out;
}
- dprintf(scd, 3, "%s: %lu/%zd\n", __func__, out, len + out);
trace_spice_vmc_write(out, len + out);
return out;
}
static int vmc_read(SpiceCharDeviceInstance *sin, uint8_t *buf, int len)
{
- SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin);
+ SpiceChardev *scd = container_of(sin, SpiceChardev, sin);
int bytes = MIN(len, scd->datalen);
- dprintf(scd, 2, "%s: %p %d/%d/%zd\n", __func__, scd->datapos, len, bytes, scd->datalen);
if (bytes > 0) {
memcpy(buf, scd->datapos, bytes);
scd->datapos += bytes;
scd->datalen -= bytes;
assert(scd->datalen >= 0);
- if (scd->datalen == 0) {
- scd->datapos = 0;
- }
+ }
+ if (scd->datalen == 0) {
+ scd->datapos = 0;
+ scd->blocked = false;
}
trace_spice_vmc_read(bytes, len);
return bytes;
}
+#if SPICE_SERVER_VERSION >= 0x000c02
+static void vmc_event(SpiceCharDeviceInstance *sin, uint8_t event)
+{
+ SpiceChardev *scd = container_of(sin, SpiceChardev, sin);
+ Chardev *chr = CHARDEV(scd);
+ int chr_event;
+
+ switch (event) {
+ case SPICE_PORT_EVENT_BREAK:
+ chr_event = CHR_EVENT_BREAK;
+ break;
+ default:
+ return;
+ }
+
+ trace_spice_vmc_event(chr_event);
+ qemu_chr_be_event(chr, chr_event);
+}
+#endif
+
+static void vmc_state(SpiceCharDeviceInstance *sin, int connected)
+{
+ SpiceChardev *scd = container_of(sin, SpiceChardev, sin);
+ Chardev *chr = CHARDEV(scd);
+
+ if ((chr->be_open && connected) ||
+ (!chr->be_open && !connected)) {
+ return;
+ }
+
+ qemu_chr_be_event(chr,
+ connected ? CHR_EVENT_OPENED : CHR_EVENT_CLOSED);
+}
+
static SpiceCharDeviceInterface vmc_interface = {
.base.type = SPICE_INTERFACE_CHAR_DEVICE,
.base.description = "spice virtual channel char device",
.base.major_version = SPICE_INTERFACE_CHAR_DEVICE_MAJOR,
.base.minor_version = SPICE_INTERFACE_CHAR_DEVICE_MINOR,
+ .state = vmc_state,
.write = vmc_write,
.read = vmc_read,
+#if SPICE_SERVER_VERSION >= 0x000c02
+ .event = vmc_event,
+#endif
+#if SPICE_SERVER_VERSION >= 0x000c06
+ .flags = SPICE_CHAR_DEVICE_NOTIFY_WRITABLE,
+#endif
};
-static void vmc_register_interface(SpiceCharDriver *scd)
+static void vmc_register_interface(SpiceChardev *scd)
{
if (scd->active) {
return;
}
- dprintf(scd, 1, "%s\n", __func__);
scd->sin.base.sif = &vmc_interface.base;
qemu_spice_add_interface(&scd->sin.base);
scd->active = true;
trace_spice_vmc_register_interface(scd);
}
-static void vmc_unregister_interface(SpiceCharDriver *scd)
+static void vmc_unregister_interface(SpiceChardev *scd)
{
if (!scd->active) {
return;
}
- dprintf(scd, 1, "%s\n", __func__);
spice_server_remove_interface(&scd->sin.base);
scd->active = false;
trace_spice_vmc_unregister_interface(scd);
}
+static gboolean spice_char_source_prepare(GSource *source, gint *timeout)
+{
+ SpiceCharSource *src = (SpiceCharSource *)source;
+
+ *timeout = -1;
+
+ return !src->scd->blocked;
+}
+
+static gboolean spice_char_source_check(GSource *source)
+{
+ SpiceCharSource *src = (SpiceCharSource *)source;
+
+ return !src->scd->blocked;
+}
+
+static gboolean spice_char_source_dispatch(GSource *source,
+ GSourceFunc callback, gpointer user_data)
+{
+ GIOFunc func = (GIOFunc)callback;
+
+ return func(NULL, G_IO_OUT, user_data);
+}
+
+static GSourceFuncs SpiceCharSourceFuncs = {
+ .prepare = spice_char_source_prepare,
+ .check = spice_char_source_check,
+ .dispatch = spice_char_source_dispatch,
+};
+
+static GSource *spice_chr_add_watch(Chardev *chr, GIOCondition cond)
+{
+ SpiceChardev *scd = SPICE_CHARDEV(chr);
+ SpiceCharSource *src;
+
+ assert(cond & G_IO_OUT);
+
+ src = (SpiceCharSource *)g_source_new(&SpiceCharSourceFuncs,
+ sizeof(SpiceCharSource));
+ src->scd = scd;
+
+ return (GSource *)src;
+}
-static int spice_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
+static int spice_chr_write(Chardev *chr, const uint8_t *buf, int len)
{
- SpiceCharDriver *s = chr->opaque;
+ SpiceChardev *s = SPICE_CHARDEV(chr);
+ int read_bytes;
- dprintf(s, 2, "%s: %d\n", __func__, len);
- vmc_register_interface(s);
assert(s->datalen == 0);
- if (s->bufsize < len) {
- s->bufsize = len;
- s->buffer = qemu_realloc(s->buffer, s->bufsize);
- }
- memcpy(s->buffer, buf, len);
- s->datapos = s->buffer;
+ s->datapos = buf;
s->datalen = len;
spice_server_char_device_wakeup(&s->sin);
- return len;
+ read_bytes = len - s->datalen;
+ if (read_bytes != len) {
+ /* We'll get passed in the unconsumed data with the next call */
+ s->datalen = 0;
+ s->datapos = NULL;
+ s->blocked = true;
+ }
+ return read_bytes;
}
-static void spice_chr_close(struct CharDriverState *chr)
+static void char_spice_finalize(Object *obj)
{
- SpiceCharDriver *s = chr->opaque;
+ SpiceChardev *s = SPICE_CHARDEV(obj);
- printf("%s\n", __func__);
vmc_unregister_interface(s);
- qemu_free(s);
+
+ if (s->next.le_prev) {
+ QLIST_REMOVE(s, next);
+ }
+
+ g_free((char *)s->sin.subtype);
+#if SPICE_SERVER_VERSION >= 0x000c02
+ g_free((char *)s->sin.portname);
+#endif
}
-static void spice_chr_guest_open(struct CharDriverState *chr)
+static void spice_vmc_set_fe_open(struct Chardev *chr, int fe_open)
{
- SpiceCharDriver *s = chr->opaque;
- vmc_register_interface(s);
+ SpiceChardev *s = SPICE_CHARDEV(chr);
+ if (fe_open) {
+ vmc_register_interface(s);
+ } else {
+ vmc_unregister_interface(s);
+ }
}
-static void spice_chr_guest_close(struct CharDriverState *chr)
+static void spice_port_set_fe_open(struct Chardev *chr, int fe_open)
{
- SpiceCharDriver *s = chr->opaque;
- vmc_unregister_interface(s);
+#if SPICE_SERVER_VERSION >= 0x000c02
+ SpiceChardev *s = SPICE_CHARDEV(chr);
+
+ if (fe_open) {
+ spice_server_port_event(&s->sin, SPICE_PORT_EVENT_OPENED);
+ } else {
+ spice_server_port_event(&s->sin, SPICE_PORT_EVENT_CLOSED);
+ }
+#endif
+}
+
+static void spice_chr_accept_input(struct Chardev *chr)
+{
+ SpiceChardev *s = SPICE_CHARDEV(chr);
+
+ spice_server_char_device_wakeup(&s->sin);
+}
+
+static void chr_open(Chardev *chr, const char *subtype)
+{
+ SpiceChardev *s = SPICE_CHARDEV(chr);
+
+ s->active = false;
+ s->sin.subtype = g_strdup(subtype);
+
+ QLIST_INSERT_HEAD(&spice_chars, s, next);
}
-static void print_allowed_subtypes(void)
+static void qemu_chr_open_spice_vmc(Chardev *chr,
+ ChardevBackend *backend,
+ bool *be_opened,
+ Error **errp)
{
- const char** psubtype;
- int i;
+ ChardevSpiceChannel *spicevmc = backend->u.spicevmc.data;
+ const char *type = spicevmc->type;
+ const char **psubtype = spice_server_char_device_recognized_subtypes();
- fprintf(stderr, "allowed names: ");
- for(i=0, psubtype = spice_server_char_device_recognized_subtypes();
- *psubtype != NULL; ++psubtype, ++i) {
- if (i == 0) {
- fprintf(stderr, "%s", *psubtype);
- } else {
- fprintf(stderr, ", %s", *psubtype);
+ for (; *psubtype != NULL; ++psubtype) {
+ if (strcmp(type, *psubtype) == 0) {
+ break;
}
}
- fprintf(stderr, "\n");
+ if (*psubtype == NULL) {
+ char *subtypes = g_strjoinv(", ",
+ (gchar **)spice_server_char_device_recognized_subtypes());
+
+ error_setg(errp, "unsupported type name: %s", type);
+ error_append_hint(errp, "allowed spice char type names: %s\n",
+ subtypes);
+
+ g_free(subtypes);
+ return;
+ }
+
+ *be_opened = false;
+ chr_open(chr, type);
}
-CharDriverState *qemu_chr_open_spice(QemuOpts *opts)
+#if SPICE_SERVER_VERSION >= 0x000c02
+static void qemu_chr_open_spice_port(Chardev *chr,
+ ChardevBackend *backend,
+ bool *be_opened,
+ Error **errp)
{
- CharDriverState *chr;
- SpiceCharDriver *s;
- const char* name = qemu_opt_get(opts, "name");
- uint32_t debug = qemu_opt_get_number(opts, "debug", 0);
- const char** psubtype = spice_server_char_device_recognized_subtypes();
- const char *subtype = NULL;
+ ChardevSpicePort *spiceport = backend->u.spiceport.data;
+ const char *name = spiceport->fqdn;
+ SpiceChardev *s;
if (name == NULL) {
- fprintf(stderr, "spice-qemu-char: missing name parameter\n");
- print_allowed_subtypes();
- return NULL;
+ error_setg(errp, "missing name parameter");
+ return;
}
- for(;*psubtype != NULL; ++psubtype) {
- if (strcmp(name, *psubtype) == 0) {
- subtype = *psubtype;
- break;
+
+ chr_open(chr, "port");
+
+ *be_opened = false;
+ s = SPICE_CHARDEV(chr);
+ s->sin.portname = g_strdup(name);
+}
+
+void qemu_spice_register_ports(void)
+{
+ SpiceChardev *s;
+
+ QLIST_FOREACH(s, &spice_chars, next) {
+ if (s->sin.portname == NULL) {
+ continue;
}
+ vmc_register_interface(s);
+ }
+}
+#endif
+
+static void qemu_chr_parse_spice_vmc(QemuOpts *opts, ChardevBackend *backend,
+ Error **errp)
+{
+ const char *name = qemu_opt_get(opts, "name");
+ ChardevSpiceChannel *spicevmc;
+
+ if (name == NULL) {
+ error_setg(errp, "chardev: spice channel: no name given");
+ return;
}
- if (subtype == NULL) {
- fprintf(stderr, "spice-qemu-char: unsupported name\n");
- print_allowed_subtypes();
- return NULL;
+ backend->type = CHARDEV_BACKEND_KIND_SPICEVMC;
+ spicevmc = backend->u.spicevmc.data = g_new0(ChardevSpiceChannel, 1);
+ qemu_chr_parse_common(opts, qapi_ChardevSpiceChannel_base(spicevmc));
+ spicevmc->type = g_strdup(name);
+}
+
+static void qemu_chr_parse_spice_port(QemuOpts *opts, ChardevBackend *backend,
+ Error **errp)
+{
+ const char *name = qemu_opt_get(opts, "name");
+ ChardevSpicePort *spiceport;
+
+ if (name == NULL) {
+ error_setg(errp, "chardev: spice port: no name given");
+ return;
}
+ backend->type = CHARDEV_BACKEND_KIND_SPICEPORT;
+ spiceport = backend->u.spiceport.data = g_new0(ChardevSpicePort, 1);
+ qemu_chr_parse_common(opts, qapi_ChardevSpicePort_base(spiceport));
+ spiceport->fqdn = g_strdup(name);
+}
- chr = qemu_mallocz(sizeof(CharDriverState));
- s = qemu_mallocz(sizeof(SpiceCharDriver));
- s->chr = chr;
- s->debug = debug;
- s->active = false;
- s->sin.subtype = subtype;
- chr->opaque = s;
- chr->chr_write = spice_chr_write;
- chr->chr_close = spice_chr_close;
- chr->chr_guest_open = spice_chr_guest_open;
- chr->chr_guest_close = spice_chr_guest_close;
+static void char_spice_class_init(ObjectClass *oc, void *data)
+{
+ ChardevClass *cc = CHARDEV_CLASS(oc);
- qemu_chr_generic_open(chr);
+ cc->chr_write = spice_chr_write;
+ cc->chr_add_watch = spice_chr_add_watch;
+ cc->chr_accept_input = spice_chr_accept_input;
+}
- return chr;
+static const TypeInfo char_spice_type_info = {
+ .name = TYPE_CHARDEV_SPICE,
+ .parent = TYPE_CHARDEV,
+ .instance_size = sizeof(SpiceChardev),
+ .instance_finalize = char_spice_finalize,
+ .class_init = char_spice_class_init,
+ .abstract = true,
+};
+
+static void char_spicevmc_class_init(ObjectClass *oc, void *data)
+{
+ ChardevClass *cc = CHARDEV_CLASS(oc);
+
+ cc->parse = qemu_chr_parse_spice_vmc;
+ cc->open = qemu_chr_open_spice_vmc;
+ cc->chr_set_fe_open = spice_vmc_set_fe_open;
+}
+
+static const TypeInfo char_spicevmc_type_info = {
+ .name = TYPE_CHARDEV_SPICEVMC,
+ .parent = TYPE_CHARDEV_SPICE,
+ .class_init = char_spicevmc_class_init,
+};
+
+static void char_spiceport_class_init(ObjectClass *oc, void *data)
+{
+ ChardevClass *cc = CHARDEV_CLASS(oc);
+
+ cc->parse = qemu_chr_parse_spice_port;
+ cc->open = qemu_chr_open_spice_port;
+ cc->chr_set_fe_open = spice_port_set_fe_open;
}
+
+static const TypeInfo char_spiceport_type_info = {
+ .name = TYPE_CHARDEV_SPICEPORT,
+ .parent = TYPE_CHARDEV_SPICE,
+ .class_init = char_spiceport_class_init,
+};
+
+static void register_types(void)
+{
+ type_register_static(&char_spice_type_info);
+ type_register_static(&char_spicevmc_type_info);
+ type_register_static(&char_spiceport_type_info);
+}
+
+type_init(register_types);
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