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9f04e09e36
qemu/ui/spice-core.c
Yonit Halperin 9f04e09e36 spice: make compression configurable. 
This patch adds options to the -spice command line switch to
configure image compression.

[ v2: speling fix in the documentation ]
2010-10-08 12:49:51 +02:00

322 lines
9.0 KiB
C
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/*
* Copyright (C) 2010 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <spice.h>
#include <spice-experimental.h>
#include "qemu-common.h"
#include "qemu-spice.h"
#include "qemu-timer.h"
#include "qemu-queue.h"
#include "qemu-x509.h"
#include "monitor.h"
/* core bits */
static SpiceServer *spice_server;
int using_spice = 0;
struct SpiceTimer {
QEMUTimer *timer;
QTAILQ_ENTRY(SpiceTimer) next;
};
static QTAILQ_HEAD(, SpiceTimer) timers = QTAILQ_HEAD_INITIALIZER(timers);
static SpiceTimer *timer_add(SpiceTimerFunc func, void *opaque)
{
SpiceTimer *timer;
timer = qemu_mallocz(sizeof(*timer));
timer->timer = qemu_new_timer(rt_clock, func, opaque);
QTAILQ_INSERT_TAIL(&timers, timer, next);
return timer;
}
static void timer_start(SpiceTimer *timer, uint32_t ms)
{
qemu_mod_timer(timer->timer, qemu_get_clock(rt_clock) + ms);
}
static void timer_cancel(SpiceTimer *timer)
{
qemu_del_timer(timer->timer);
}
static void timer_remove(SpiceTimer *timer)
{
qemu_del_timer(timer->timer);
qemu_free_timer(timer->timer);
QTAILQ_REMOVE(&timers, timer, next);
qemu_free(timer);
}
struct SpiceWatch {
int fd;
int event_mask;
SpiceWatchFunc func;
void *opaque;
QTAILQ_ENTRY(SpiceWatch) next;
};
static QTAILQ_HEAD(, SpiceWatch) watches = QTAILQ_HEAD_INITIALIZER(watches);
static void watch_read(void *opaque)
{
SpiceWatch *watch = opaque;
watch->func(watch->fd, SPICE_WATCH_EVENT_READ, watch->opaque);
}
static void watch_write(void *opaque)
{
SpiceWatch *watch = opaque;
watch->func(watch->fd, SPICE_WATCH_EVENT_WRITE, watch->opaque);
}
static void watch_update_mask(SpiceWatch *watch, int event_mask)
{
IOHandler *on_read = NULL;
IOHandler *on_write = NULL;
watch->event_mask = event_mask;
if (watch->event_mask & SPICE_WATCH_EVENT_READ) {
on_read = watch_read;
}
if (watch->event_mask & SPICE_WATCH_EVENT_WRITE) {
on_read = watch_write;
}
qemu_set_fd_handler(watch->fd, on_read, on_write, watch);
}
static SpiceWatch *watch_add(int fd, int event_mask, SpiceWatchFunc func, void *opaque)
{
SpiceWatch *watch;
watch = qemu_mallocz(sizeof(*watch));
watch->fd = fd;
watch->func = func;
watch->opaque = opaque;
QTAILQ_INSERT_TAIL(&watches, watch, next);
watch_update_mask(watch, event_mask);
return watch;
}
static void watch_remove(SpiceWatch *watch)
{
watch_update_mask(watch, 0);
QTAILQ_REMOVE(&watches, watch, next);
qemu_free(watch);
}
static SpiceCoreInterface core_interface = {
.base.type = SPICE_INTERFACE_CORE,
.base.description = "qemu core services",
.base.major_version = SPICE_INTERFACE_CORE_MAJOR,
.base.minor_version = SPICE_INTERFACE_CORE_MINOR,
.timer_add = timer_add,
.timer_start = timer_start,
.timer_cancel = timer_cancel,
.timer_remove = timer_remove,
.watch_add = watch_add,
.watch_update_mask = watch_update_mask,
.watch_remove = watch_remove,
};
/* config string parsing */
static int name2enum(const char *string, const char *table[], int entries)
{
int i;
if (string) {
for (i = 0; i < entries; i++) {
if (!table[i]) {
continue;
}
if (strcmp(string, table[i]) != 0) {
continue;
}
return i;
}
}
return -1;
}
static int parse_name(const char *string, const char *optname,
const char *table[], int entries)
{
int value = name2enum(string, table, entries);
if (value != -1) {
return value;
}
fprintf(stderr, "spice: invalid %s: %s\n", optname, string);
exit(1);
}
static const char *compression_names[] = {
[ SPICE_IMAGE_COMPRESS_OFF ] = "off",
[ SPICE_IMAGE_COMPRESS_AUTO_GLZ ] = "auto_glz",
[ SPICE_IMAGE_COMPRESS_AUTO_LZ ] = "auto_lz",
[ SPICE_IMAGE_COMPRESS_QUIC ] = "quic",
[ SPICE_IMAGE_COMPRESS_GLZ ] = "glz",
[ SPICE_IMAGE_COMPRESS_LZ ] = "lz",
};
#define parse_compression(_name) \
parse_name(_name, "image compression", \
compression_names, ARRAY_SIZE(compression_names))
static const char *wan_compression_names[] = {
[ SPICE_WAN_COMPRESSION_AUTO ] = "auto",
[ SPICE_WAN_COMPRESSION_NEVER ] = "never",
[ SPICE_WAN_COMPRESSION_ALWAYS ] = "always",
};
#define parse_wan_compression(_name) \
parse_name(_name, "wan compression", \
wan_compression_names, ARRAY_SIZE(wan_compression_names))
/* functions for the rest of qemu */
void qemu_spice_init(void)
{
QemuOpts *opts = QTAILQ_FIRST(&qemu_spice_opts.head);
const char *password, *str, *x509_dir,
*x509_key_password = NULL,
*x509_dh_file = NULL,
*tls_ciphers = NULL;
char *x509_key_file = NULL,
*x509_cert_file = NULL,
*x509_cacert_file = NULL;
int port, tls_port, len;
spice_image_compression_t compression;
spice_wan_compression_t wan_compr;
if (!opts) {
return;
}
port = qemu_opt_get_number(opts, "port", 0);
tls_port = qemu_opt_get_number(opts, "tls-port", 0);
if (!port && !tls_port) {
return;
}
password = qemu_opt_get(opts, "password");
if (tls_port) {
x509_dir = qemu_opt_get(opts, "x509-dir");
if (NULL == x509_dir) {
x509_dir = ".";
}
len = strlen(x509_dir) + 32;
str = qemu_opt_get(opts, "x509-key-file");
if (str) {
x509_key_file = qemu_strdup(str);
} else {
x509_key_file = qemu_malloc(len);
snprintf(x509_key_file, len, "%s/%s", x509_dir, X509_SERVER_KEY_FILE);
}
str = qemu_opt_get(opts, "x509-cert-file");
if (str) {
x509_cert_file = qemu_strdup(str);
} else {
x509_cert_file = qemu_malloc(len);
snprintf(x509_cert_file, len, "%s/%s", x509_dir, X509_SERVER_CERT_FILE);
}
str = qemu_opt_get(opts, "x509-cacert-file");
if (str) {
x509_cacert_file = qemu_strdup(str);
} else {
x509_cacert_file = qemu_malloc(len);
snprintf(x509_cacert_file, len, "%s/%s", x509_dir, X509_CA_CERT_FILE);
}
x509_key_password = qemu_opt_get(opts, "x509-key-password");
x509_dh_file = qemu_opt_get(opts, "x509-dh-file");
tls_ciphers = qemu_opt_get(opts, "tls-ciphers");
}
spice_server = spice_server_new();
if (port) {
spice_server_set_port(spice_server, port);
}
if (tls_port) {
spice_server_set_tls(spice_server, tls_port,
x509_cacert_file,
x509_cert_file,
x509_key_file,
x509_key_password,
x509_dh_file,
tls_ciphers);
}
if (password) {
spice_server_set_ticket(spice_server, password, 0, 0, 0);
}
if (qemu_opt_get_bool(opts, "disable-ticketing", 0)) {
spice_server_set_noauth(spice_server);
}
compression = SPICE_IMAGE_COMPRESS_AUTO_GLZ;
str = qemu_opt_get(opts, "image-compression");
if (str) {
compression = parse_compression(str);
}
spice_server_set_image_compression(spice_server, compression);
wan_compr = SPICE_WAN_COMPRESSION_AUTO;
str = qemu_opt_get(opts, "jpeg-wan-compression");
if (str) {
wan_compr = parse_wan_compression(str);
}
spice_server_set_jpeg_compression(spice_server, wan_compr);
wan_compr = SPICE_WAN_COMPRESSION_AUTO;
str = qemu_opt_get(opts, "zlib-glz-wan-compression");
if (str) {
wan_compr = parse_wan_compression(str);
}
spice_server_set_zlib_glz_compression(spice_server, wan_compr);
spice_server_init(spice_server, &core_interface);
using_spice = 1;
qemu_spice_input_init();
qemu_free(x509_key_file);
qemu_free(x509_cert_file);
qemu_free(x509_cacert_file);
}
int qemu_spice_add_interface(SpiceBaseInstance *sin)
{
return spice_server_add_interface(spice_server, sin);
}
static void spice_register_config(void)
{
qemu_add_opts(&qemu_spice_opts);
}
machine_init(spice_register_config);
static void spice_initialize(void)
{
qemu_spice_init();
}
device_init(spice_initialize);
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