diff options
Diffstat (limited to 'qemu/spice-qemu-char.c')
| -rw-r--r-- | qemu/spice-qemu-char.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/qemu/spice-qemu-char.c b/qemu/spice-qemu-char.c deleted file mode 100644 index 351fcaa03..000000000 --- a/qemu/spice-qemu-char.c +++ /dev/null @@ -1,405 +0,0 @@ -#include "qemu/osdep.h" -#include "trace.h" -#include "ui/qemu-spice.h" -#include "sysemu/char.h" -#include <spice.h> -#include <spice/protocol.h> - - -typedef struct SpiceCharDriver { - CharDriverState* chr; - SpiceCharDeviceInstance sin; - bool active; - bool blocked; - const uint8_t *datapos; - int datalen; - QLIST_ENTRY(SpiceCharDriver) next; -} SpiceCharDriver; - -typedef struct SpiceCharSource { - GSource source; - SpiceCharDriver *scd; -} SpiceCharSource; - -static QLIST_HEAD(, SpiceCharDriver) 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); - ssize_t out = 0; - ssize_t last_out; - uint8_t* p = (uint8_t*)buf; - - while (len > 0) { - int can_write = qemu_chr_be_can_write(scd->chr); - last_out = MIN(len, can_write); - if (last_out <= 0) { - break; - } - qemu_chr_be_write(scd->chr, p, last_out); - out += last_out; - len -= last_out; - p += last_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); - int bytes = MIN(len, 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; - 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) -{ - SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); - 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(scd->chr, chr_event); -} -#endif - -static void vmc_state(SpiceCharDeviceInstance *sin, int connected) -{ - SpiceCharDriver *scd = container_of(sin, SpiceCharDriver, sin); - - if ((scd->chr->be_open && connected) || - (!scd->chr->be_open && !connected)) { - return; - } - - qemu_chr_be_event(scd->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) -{ - if (scd->active) { - return; - } - 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) -{ - if (!scd->active) { - return; - } - 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(CharDriverState *chr, GIOCondition cond) -{ - SpiceCharDriver *scd = chr->opaque; - 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) -{ - SpiceCharDriver *s = chr->opaque; - int read_bytes; - - assert(s->datalen == 0); - s->datapos = buf; - s->datalen = len; - spice_server_char_device_wakeup(&s->sin); - 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) -{ - SpiceCharDriver *s = chr->opaque; - - vmc_unregister_interface(s); - QLIST_REMOVE(s, next); - - g_free((char *)s->sin.subtype); -#if SPICE_SERVER_VERSION >= 0x000c02 - g_free((char *)s->sin.portname); -#endif - g_free(s); -} - -static void spice_vmc_set_fe_open(struct CharDriverState *chr, int fe_open) -{ - SpiceCharDriver *s = chr->opaque; - if (fe_open) { - vmc_register_interface(s); - } else { - vmc_unregister_interface(s); - } -} - -static void spice_port_set_fe_open(struct CharDriverState *chr, int fe_open) -{ -#if SPICE_SERVER_VERSION >= 0x000c02 - SpiceCharDriver *s = chr->opaque; - - 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_fe_event(struct CharDriverState *chr, int event) -{ -#if SPICE_SERVER_VERSION >= 0x000c02 - SpiceCharDriver *s = chr->opaque; - - spice_server_port_event(&s->sin, event); -#endif -} - -static void print_allowed_subtypes(void) -{ - const char** psubtype; - int i; - - 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); - } - } - fprintf(stderr, "\n"); -} - -static void spice_chr_accept_input(struct CharDriverState *chr) -{ - SpiceCharDriver *s = chr->opaque; - - spice_server_char_device_wakeup(&s->sin); -} - -static CharDriverState *chr_open(const char *subtype, - void (*set_fe_open)(struct CharDriverState *, - int), - ChardevCommon *backend, - Error **errp) -{ - CharDriverState *chr; - SpiceCharDriver *s; - - chr = qemu_chr_alloc(backend, errp); - if (!chr) { - return NULL; - } - s = g_malloc0(sizeof(SpiceCharDriver)); - s->chr = chr; - s->active = false; - s->sin.subtype = g_strdup(subtype); - chr->opaque = s; - chr->chr_write = spice_chr_write; - chr->chr_add_watch = spice_chr_add_watch; - chr->chr_close = spice_chr_close; - chr->chr_set_fe_open = set_fe_open; - chr->explicit_be_open = true; - chr->chr_fe_event = spice_chr_fe_event; - chr->chr_accept_input = spice_chr_accept_input; - - QLIST_INSERT_HEAD(&spice_chars, s, next); - - return chr; -} - -static CharDriverState *qemu_chr_open_spice_vmc(const char *id, - ChardevBackend *backend, - ChardevReturn *ret, - Error **errp) -{ - ChardevSpiceChannel *spicevmc = backend->u.spicevmc.data; - const char *type = spicevmc->type; - const char **psubtype = spice_server_char_device_recognized_subtypes(); - ChardevCommon *common = qapi_ChardevSpiceChannel_base(spicevmc); - - for (; *psubtype != NULL; ++psubtype) { - if (strcmp(type, *psubtype) == 0) { - break; - } - } - if (*psubtype == NULL) { - fprintf(stderr, "spice-qemu-char: unsupported type: %s\n", type); - print_allowed_subtypes(); - return NULL; - } - - return chr_open(type, spice_vmc_set_fe_open, common, errp); -} - -#if SPICE_SERVER_VERSION >= 0x000c02 -static CharDriverState *qemu_chr_open_spice_port(const char *id, - ChardevBackend *backend, - ChardevReturn *ret, - Error **errp) -{ - ChardevSpicePort *spiceport = backend->u.spiceport.data; - const char *name = spiceport->fqdn; - ChardevCommon *common = qapi_ChardevSpicePort_base(spiceport); - CharDriverState *chr; - SpiceCharDriver *s; - - if (name == NULL) { - fprintf(stderr, "spice-qemu-char: missing name parameter\n"); - return NULL; - } - - chr = chr_open("port", spice_port_set_fe_open, common, errp); - if (!chr) { - return NULL; - } - s = chr->opaque; - s->sin.portname = g_strdup(name); - - return chr; -} - -void qemu_spice_register_ports(void) -{ - SpiceCharDriver *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; - } - 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; - } - spiceport = backend->u.spiceport.data = g_new0(ChardevSpicePort, 1); - qemu_chr_parse_common(opts, qapi_ChardevSpicePort_base(spiceport)); - spiceport->fqdn = g_strdup(name); -} - -static void register_types(void) -{ - register_char_driver("spicevmc", CHARDEV_BACKEND_KIND_SPICEVMC, - qemu_chr_parse_spice_vmc, qemu_chr_open_spice_vmc); - register_char_driver("spiceport", CHARDEV_BACKEND_KIND_SPICEPORT, - qemu_chr_parse_spice_port, qemu_chr_open_spice_port); -} - -type_init(register_types); |