#include "qemu_socket.h"
#include "qemu-timer.h"
#include "acl.h"
+#include "qemu-objects.h"
-#define VNC_REFRESH_INTERVAL (1000 / 30)
+#define VNC_REFRESH_INTERVAL_BASE 30
+#define VNC_REFRESH_INTERVAL_INC 50
+#define VNC_REFRESH_INTERVAL_MAX 2000
#include "vnc_keysym.h"
#include "d3des.h"
return addr_to_string(format, &sa, salen);
}
+static int put_addr_qdict(QDict *qdict, struct sockaddr_storage *sa,
+ socklen_t salen)
+{
+ char host[NI_MAXHOST];
+ char serv[NI_MAXSERV];
+ int err;
+
+ if ((err = getnameinfo((struct sockaddr *)sa, salen,
+ host, sizeof(host),
+ serv, sizeof(serv),
+ NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
+ VNC_DEBUG("Cannot resolve address %d: %s\n",
+ err, gai_strerror(err));
+ return -1;
+ }
+
+ qdict_put(qdict, "host", qstring_from_str(host));
+ qdict_put(qdict, "service", qstring_from_str(serv));
+
+ return 0;
+}
+
+static int vnc_qdict_local_addr(QDict *qdict, int fd)
+{
+ struct sockaddr_storage sa;
+ socklen_t salen;
+
+ salen = sizeof(sa);
+ if (getsockname(fd, (struct sockaddr*)&sa, &salen) < 0) {
+ return -1;
+ }
+
+ return put_addr_qdict(qdict, &sa, salen);
+}
+
+static int vnc_qdict_remote_addr(QDict *qdict, int fd)
+{
+ struct sockaddr_storage sa;
+ socklen_t salen;
+
+ salen = sizeof(sa);
+ if (getpeername(fd, (struct sockaddr*)&sa, &salen) < 0) {
+ return -1;
+ }
+
+ return put_addr_qdict(qdict, &sa, salen);
+}
+
static const char *vnc_auth_name(VncDisplay *vd) {
switch (vd->auth) {
case VNC_AUTH_INVALID:
return "unknown";
}
-static void do_info_vnc_client(Monitor *mon, VncState *client)
+static QDict *do_info_vnc_client(Monitor *mon, VncState *client)
{
- char *clientAddr =
- vnc_socket_remote_addr(" address: %s:%s\n",
- client->csock);
- if (!clientAddr)
- return;
+ QDict *qdict;
- monitor_printf(mon, "Client:\n");
- monitor_printf(mon, "%s", clientAddr);
- free(clientAddr);
+ qdict = qdict_new();
+ if (vnc_qdict_remote_addr(qdict, client->csock) < 0) {
+ QDECREF(qdict);
+ return NULL;
+ }
#ifdef CONFIG_VNC_TLS
if (client->tls.session &&
- client->tls.dname)
- monitor_printf(mon, " x509 dname: %s\n", client->tls.dname);
- else
- monitor_printf(mon, " x509 dname: none\n");
+ client->tls.dname) {
+ qdict_put(qdict, "x509_dname", qstring_from_str(client->tls.dname));
+ }
#endif
#ifdef CONFIG_VNC_SASL
if (client->sasl.conn &&
- client->sasl.username)
- monitor_printf(mon, " username: %s\n", client->sasl.username);
- else
- monitor_printf(mon, " username: none\n");
+ client->sasl.username) {
+ qdict_put(qdict, "username", qstring_from_str(client->sasl.username));
+ }
#endif
+
+ return qdict;
}
-void do_info_vnc(Monitor *mon)
+static void info_vnc_iter(QObject *obj, void *opaque)
{
- if (vnc_display == NULL || vnc_display->display == NULL) {
+ QDict *client;
+ Monitor *mon = opaque;
+
+ client = qobject_to_qdict(obj);
+ monitor_printf(mon, "Client:\n");
+ monitor_printf(mon, " address: %s:%s\n",
+ qdict_get_str(client, "host"),
+ qdict_get_str(client, "service"));
+
+#ifdef CONFIG_VNC_TLS
+ monitor_printf(mon, " x509_dname: %s\n",
+ qdict_haskey(client, "x509_dname") ?
+ qdict_get_str(client, "x509_dname") : "none");
+#endif
+#ifdef CONFIG_VNC_SASL
+ monitor_printf(mon, " username: %s\n",
+ qdict_haskey(client, "username") ?
+ qdict_get_str(client, "username") : "none");
+#endif
+}
+
+void do_info_vnc_print(Monitor *mon, const QObject *data)
+{
+ QDict *server;
+ QList *clients;
+
+ server = qobject_to_qdict(data);
+ if (strcmp(qdict_get_str(server, "status"), "disabled") == 0) {
monitor_printf(mon, "Server: disabled\n");
- } else {
- char *serverAddr = vnc_socket_local_addr(" address: %s:%s\n",
- vnc_display->lsock);
+ return;
+ }
- if (!serverAddr)
- return;
+ monitor_printf(mon, "Server:\n");
+ monitor_printf(mon, " address: %s:%s\n",
+ qdict_get_str(server, "host"),
+ qdict_get_str(server, "service"));
+ monitor_printf(mon, " auth: %s\n",
+ qdict_haskey(server, "auth") ? qdict_get_str(server, "auth") : "none");
- monitor_printf(mon, "Server:\n");
- monitor_printf(mon, "%s", serverAddr);
- free(serverAddr);
- monitor_printf(mon, " auth: %s\n", vnc_auth_name(vnc_display));
+ clients = qdict_get_qlist(server, "clients");
+ if (qlist_empty(clients)) {
+ monitor_printf(mon, "Client: none\n");
+ } else {
+ qlist_iter(clients, info_vnc_iter, mon);
+ }
+}
+
+/**
+ * do_info_vnc(): Show VNC server information
+ *
+ * Return a QDict with server information. Connected clients are returned
+ * as a QList of QDicts.
+ *
+ * The main QDict contains the following:
+ *
+ * - "status": "disabled" or "enabled"
+ * - "host": server's IP address
+ * - "service": server's port number
+ * - "auth": authentication method (optional)
+ * - "clients": a QList of all connected clients
+ *
+ * Clients are described by a QDict, with the following information:
+ *
+ * - "host": client's IP address
+ * - "service": client's port number
+ * - "x509_dname": TLS dname (optional)
+ * - "username": SASL username (optional)
+ *
+ * Example:
+ *
+ * { "status": "enabled", "host": "0.0.0.0", "service": "50402", "auth": "vnc",
+ * "clients": [ { "host": "127.0.0.1", "service": "50401" } ] }
+ */
+void do_info_vnc(Monitor *mon, QObject **ret_data)
+{
+ if (vnc_display == NULL || vnc_display->display == NULL) {
+ *ret_data = qobject_from_jsonf("{ 'status': 'disabled' }");
+ } else {
+ QDict *qdict;
+ QList *clist;
+ clist = qlist_new();
if (vnc_display->clients) {
VncState *client = vnc_display->clients;
while (client) {
- do_info_vnc_client(mon, client);
+ qdict = do_info_vnc_client(mon, client);
+ if (qdict)
+ qlist_append(clist, qdict);
client = client->next;
}
- } else {
- monitor_printf(mon, "Client: none\n");
+ }
+
+ *ret_data = qobject_from_jsonf("{ 'status': 'enabled', 'clients': %p }",
+ QOBJECT(clist));
+ assert(*ret_data != NULL);
+
+ qdict = qobject_to_qdict(*ret_data);
+
+ if (vnc_display->auth != VNC_AUTH_NONE) {
+ qdict_put(qdict, "auth",
+ qstring_from_str(vnc_auth_name(vnc_display)));
+ }
+
+ if (vnc_qdict_local_addr(qdict, vnc_display->lsock) < 0) {
+ qobject_decref(*ret_data);
+ *ret_data = NULL;
}
}
}
3) resolutions > 1024
*/
-static void vnc_update_client(VncState *vs, int has_dirty);
+static int vnc_update_client(VncState *vs, int has_dirty);
static void vnc_disconnect_start(VncState *vs);
static void vnc_disconnect_finish(VncState *vs);
static void vnc_init_timer(VncDisplay *vd);
}
+#define ZALLOC_ALIGNMENT 16
+
+static void *zalloc(void *x, unsigned items, unsigned size)
+{
+ void *p;
+
+ size *= items;
+ size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
+
+ p = qemu_mallocz(size);
+
+ return (p);
+}
+
+static void zfree(void *x, void *addr)
+{
+ qemu_free(addr);
+}
+
static void vnc_zlib_init(VncState *vs)
{
int i;
VNC_DEBUG("VNC: initializing zlib stream %d\n", stream_id);
VNC_DEBUG("VNC: opaque = %p | vs = %p\n", zstream->opaque, vs);
- zstream->zalloc = Z_NULL;
- zstream->zfree = Z_NULL;
+ zstream->zalloc = zalloc;
+ zstream->zfree = zfree;
err = deflateInit2(zstream, vs->tight_compression, Z_DEFLATED, MAX_WBITS,
MAX_MEM_LEVEL, Z_DEFAULT_STRATEGY);
return h;
}
-static void vnc_update_client(VncState *vs, int has_dirty)
+static int vnc_update_client(VncState *vs, int has_dirty)
{
if (vs->need_update && vs->csock != -1) {
VncDisplay *vd = vs->vd;
if (vs->output.offset && !vs->audio_cap && !vs->force_update)
/* kernel send buffers are full -> drop frames to throttle */
- return;
+ return 0;
if (!has_dirty && !vs->audio_cap && !vs->force_update)
- return;
+ return 0;
/*
* Send screen updates to the vnc client using the server
vs->output.buffer[saved_offset + 1] = n_rectangles & 0xFF;
vnc_flush(vs);
vs->force_update = 0;
-
+ return n_rectangles;
}
if (vs->csock == -1)
vnc_disconnect_finish(vs);
+
+ return 0;
}
/* audio */
static void vnc_disconnect_finish(VncState *vs)
{
- if (vs->input.buffer) qemu_free(vs->input.buffer);
- if (vs->output.buffer) qemu_free(vs->output.buffer);
+ if (vs->input.buffer) {
+ qemu_free(vs->input.buffer);
+ vs->input.buffer = NULL;
+ }
+ if (vs->output.buffer) {
+ qemu_free(vs->output.buffer);
+ vs->output.buffer = NULL;
+ }
#ifdef CONFIG_VNC_TLS
vnc_tls_client_cleanup(vs);
#endif /* CONFIG_VNC_TLS */
if (!vs->vd->clients)
dcl->idle = 1;
- qemu_free(vs);
vnc_remove_timer(vs->vd);
+ qemu_free(vs);
}
int vnc_client_io_error(VncState *vs, int ret, int last_errno)
}
}
+ if ((sym >= 'A' && sym <= 'Z') || (sym >= 'a' && sym <= 'z')) {
+ /* If the capslock state needs to change then simulate an additional
+ keypress before sending this one. This will happen if the user
+ toggles capslock away from the VNC window.
+ */
+ int uppercase = !!(sym >= 'A' && sym <= 'Z');
+ int shift = !!(vs->modifiers_state[0x2a] | vs->modifiers_state[0x36]);
+ int capslock = !!(vs->modifiers_state[0x3a]);
+ if (capslock) {
+ if (uppercase == shift) {
+ vs->modifiers_state[0x3a] = 0;
+ press_key(vs, 0xffe5);
+ }
+ } else {
+ if (uppercase != shift) {
+ vs->modifiers_state[0x3a] = 1;
+ press_key(vs, 0xffe5);
+ }
+ }
+ }
+
if (is_graphic_console()) {
if (keycode & 0x80)
kbd_put_keycode(0xe0);
static void key_event(VncState *vs, int down, uint32_t sym)
{
int keycode;
+ int lsym = sym;
- if (sym >= 'A' && sym <= 'Z' && is_graphic_console())
- sym = sym - 'A' + 'a';
+ if (lsym >= 'A' && lsym <= 'Z' && is_graphic_console()) {
+ lsym = lsym - 'A' + 'a';
+ }
- keycode = keysym2scancode(vs->vd->kbd_layout, sym & 0xFFFF);
+ keycode = keysym2scancode(vs->vd->kbd_layout, lsym & 0xFFFF);
do_key_event(vs, down, keycode, sym);
}
{
int i;
uint16_t limit;
+ VncDisplay *vd = vs->vd;
+
+ if (data[0] > 3) {
+ vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
+ if (!qemu_timer_expired(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval))
+ qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval);
+ }
switch (data[0]) {
case 0:
{
VncDisplay *vd = opaque;
VncState *vs = NULL;
- int has_dirty = 0;
+ int has_dirty = 0, rects = 0;
vga_hw_update();
vs = vd->clients;
while (vs != NULL) {
- vnc_update_client(vs, has_dirty);
+ rects += vnc_update_client(vs, has_dirty);
vs = vs->next;
}
- qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + VNC_REFRESH_INTERVAL);
+ if (has_dirty && rects) {
+ vd->timer_interval /= 2;
+ if (vd->timer_interval < VNC_REFRESH_INTERVAL_BASE)
+ vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
+ } else {
+ vd->timer_interval += VNC_REFRESH_INTERVAL_INC;
+ if (vd->timer_interval > VNC_REFRESH_INTERVAL_MAX)
+ vd->timer_interval = VNC_REFRESH_INTERVAL_MAX;
+ }
+ qemu_mod_timer(vd->timer, qemu_get_clock(rt_clock) + vd->timer_interval);
}
static void vnc_init_timer(VncDisplay *vd)
{
+ vd->timer_interval = VNC_REFRESH_INTERVAL_BASE;
if (vd->timer == NULL && vd->clients != NULL) {
vd->timer = qemu_new_timer(rt_clock, vnc_refresh, vd);
vnc_refresh(vd);
/* Catch-up */
vga_hw_update();
- int csock = accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
+ int csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
if (csock != -1) {
vnc_connect(vs, csock);
}
{
VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
+ if (!vs) {
+ return -1;
+ }
+
if (vs->password) {
qemu_free(vs->password);
vs->password = NULL;
if (password && password[0]) {
if (!(vs->password = qemu_strdup(password)))
return -1;
+ if (vs->auth == VNC_AUTH_NONE) {
+ vs->auth = VNC_AUTH_VNC;
+ }
+ } else {
+ vs->auth = VNC_AUTH_NONE;
}
return 0;
projects / qemu.git / blobdiff