/* * QEMU external Spice client display driver * * Copyright (c) 2018 Marc-André Lureau <marcandre.lureau@redhat.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "qemu/osdep.h" #include <gio/gio.h> #include "ui/console.h" #include "qemu/config-file.h" #include "qemu/option.h" #include "qemu/cutils.h" #include "qemu/module.h" #include "qapi/error.h" #include "io/channel-command.h" #include "chardev/spice.h" #include "sysemu/sysemu.h" #include "qom/object.h" static const char *tmp_dir; static char *app_dir; static char *sock_path; struct VCChardev { SpiceChardev parent; }; struct VCChardevClass { ChardevClass parent; void (*parent_open)(Chardev *chr, ChardevBackend *backend, bool *be_opened, Error **errp); }; #define TYPE_CHARDEV_VC "chardev-vc" OBJECT_DECLARE_TYPE(VCChardev, VCChardevClass, CHARDEV_VC) static ChardevBackend * chr_spice_backend_new(void) { ChardevBackend *be = g_new0(ChardevBackend, 1); be->type = CHARDEV_BACKEND_KIND_SPICEPORT; be->u.spiceport.data = g_new0(ChardevSpicePort, 1); return be; } static void vc_chr_open(Chardev *chr, ChardevBackend *backend, bool *be_opened, Error **errp) { VCChardevClass *vc = CHARDEV_VC_GET_CLASS(chr); ChardevBackend *be; const char *fqdn = NULL; if (strstart(chr->label, "serial", NULL)) { fqdn = "org.qemu.console.serial.0"; } else if (strstart(chr->label, "parallel", NULL)) { fqdn = "org.qemu.console.parallel.0"; } else if (strstart(chr->label, "compat_monitor", NULL)) { fqdn = "org.qemu.monitor.hmp.0"; } be = chr_spice_backend_new(); be->u.spiceport.data->fqdn = fqdn ? g_strdup(fqdn) : g_strdup_printf("org.qemu.console.%s", chr->label); vc->parent_open(chr, be, be_opened, errp); qapi_free_ChardevBackend(be); } static void vc_chr_set_echo(Chardev *chr, bool echo) { /* TODO: set echo for frontends QMP and qtest */ } static void char_vc_class_init(ObjectClass *oc, void *data) { VCChardevClass *vc = CHARDEV_VC_CLASS(oc); ChardevClass *cc = CHARDEV_CLASS(oc); vc->parent_open = cc->open; cc->parse = qemu_chr_parse_vc; cc->open = vc_chr_open; cc->chr_set_echo = vc_chr_set_echo; } static const TypeInfo char_vc_type_info = { .name = TYPE_CHARDEV_VC, .parent = TYPE_CHARDEV_SPICEPORT, .instance_size = sizeof(VCChardev), .class_init = char_vc_class_init, .class_size = sizeof(VCChardevClass), }; static void spice_app_atexit(void) { if (sock_path) { unlink(sock_path); } if (tmp_dir) { rmdir(tmp_dir); } g_free(sock_path); g_free(app_dir); } static void spice_app_display_early_init(DisplayOptions *opts) { QemuOpts *qopts; GError *err = NULL; if (opts->has_full_screen) { error_report("spice-app full-screen isn't supported yet."); exit(1); } if (opts->has_window_close) { error_report("spice-app window-close isn't supported yet."); exit(1); } atexit(spice_app_atexit); if (qemu_name) { app_dir = g_build_filename(g_get_user_runtime_dir(), "qemu", qemu_name, NULL); if (g_mkdir_with_parents(app_dir, S_IRWXU) < -1) { error_report("Failed to create directory %s: %s", app_dir, strerror(errno)); exit(1); } } else { app_dir = g_dir_make_tmp(NULL, &err); tmp_dir = app_dir; if (err) { error_report("Failed to create temporary directory: %s", err->message); exit(1); } } type_register(&char_vc_type_info); sock_path = g_strjoin("", app_dir, "/", "spice.sock", NULL); qopts = qemu_opts_create(qemu_find_opts("spice"), NULL, 0, &error_abort); qemu_opt_set(qopts, "disable-ticketing", "on", &error_abort); qemu_opt_set(qopts, "unix", "on", &error_abort); qemu_opt_set(qopts, "addr", sock_path, &error_abort); qemu_opt_set(qopts, "image-compression", "off", &error_abort); qemu_opt_set(qopts, "streaming-video", "off", &error_abort); #ifdef CONFIG_OPENGL qemu_opt_set(qopts, "gl", opts->has_gl ? "on" : "off", &error_abort); display_opengl = opts->has_gl; #endif } static void spice_app_display_init(DisplayState *ds, DisplayOptions *opts) { ChardevBackend *be = chr_spice_backend_new(); QemuOpts *qopts; GError *err = NULL; gchar *uri; be->u.spiceport.data->fqdn = g_strdup("org.qemu.monitor.qmp.0"); qemu_chardev_new("org.qemu.monitor.qmp", TYPE_CHARDEV_SPICEPORT, be, NULL, &error_abort); qopts = qemu_opts_create(qemu_find_opts("mon"), NULL, 0, &error_fatal); qemu_opt_set(qopts, "chardev", "org.qemu.monitor.qmp", &error_abort); qemu_opt_set(qopts, "mode", "control", &error_abort); qapi_free_ChardevBackend(be); uri = g_strjoin("", "spice+unix://", app_dir, "/", "spice.sock", NULL); info_report("Launching display with URI: %s", uri); g_app_info_launch_default_for_uri(uri, NULL, &err); if (err) { error_report("Failed to launch %s URI: %s", uri, err->message); error_report("You need a capable Spice client, " "such as virt-viewer 8.0"); exit(1); } g_free(uri); } static QemuDisplay qemu_display_spice_app = { .type = DISPLAY_TYPE_SPICE_APP, .early_init = spice_app_display_early_init, .init = spice_app_display_init, }; static void register_spice_app(void) { qemu_display_register(&qemu_display_spice_app); } type_init(register_spice_app);