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Diffstat (limited to 'ui/vnc.c')
-rw-r--r--ui/vnc.c187
1 files changed, 169 insertions, 18 deletions
diff --git a/ui/vnc.c b/ui/vnc.c
index ddf01f1055..ee08894f7f 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -420,7 +420,6 @@ out_error:
static int vnc_update_client(VncState *vs, int has_dirty);
static int vnc_update_client_sync(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);
static void vnc_remove_timer(VncDisplay *vd);
@@ -486,7 +485,7 @@ static int buffer_empty(Buffer *buffer)
return buffer->offset == 0;
}
-static uint8_t *buffer_end(Buffer *buffer)
+uint8_t *buffer_end(Buffer *buffer)
{
return buffer->buffer + buffer->offset;
}
@@ -1023,7 +1022,7 @@ static void vnc_disconnect_start(VncState *vs)
vs->csock = -1;
}
-static void vnc_disconnect_finish(VncState *vs)
+void vnc_disconnect_finish(VncState *vs)
{
int i;
@@ -1034,6 +1033,10 @@ static void vnc_disconnect_finish(VncState *vs)
buffer_free(&vs->input);
buffer_free(&vs->output);
+#ifdef CONFIG_VNC_WS
+ buffer_free(&vs->ws_input);
+ buffer_free(&vs->ws_output);
+#endif /* CONFIG_VNC_WS */
qobject_decref(vs->info);
@@ -1199,7 +1202,16 @@ static void vnc_client_write_locked(void *opaque)
vnc_client_write_sasl(vs);
} else
#endif /* CONFIG_VNC_SASL */
- vnc_client_write_plain(vs);
+ {
+#ifdef CONFIG_VNC_WS
+ if (vs->encode_ws) {
+ vnc_client_write_ws(vs);
+ } else
+#endif /* CONFIG_VNC_WS */
+ {
+ vnc_client_write_plain(vs);
+ }
+ }
}
void vnc_client_write(void *opaque)
@@ -1207,7 +1219,11 @@ void vnc_client_write(void *opaque)
VncState *vs = opaque;
vnc_lock_output(vs);
- if (vs->output.offset) {
+ if (vs->output.offset
+#ifdef CONFIG_VNC_WS
+ || vs->ws_output.offset
+#endif
+ ) {
vnc_client_write_locked(opaque);
} else if (vs->csock != -1) {
qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
@@ -1301,7 +1317,21 @@ void vnc_client_read(void *opaque)
ret = vnc_client_read_sasl(vs);
else
#endif /* CONFIG_VNC_SASL */
+#ifdef CONFIG_VNC_WS
+ if (vs->encode_ws) {
+ ret = vnc_client_read_ws(vs);
+ if (ret == -1) {
+ vnc_disconnect_start(vs);
+ return;
+ } else if (ret == -2) {
+ vnc_client_error(vs);
+ return;
+ }
+ } else
+#endif /* CONFIG_VNC_WS */
+ {
ret = vnc_client_read_plain(vs);
+ }
if (!ret) {
if (vs->csock == -1)
vnc_disconnect_finish(vs);
@@ -1372,7 +1402,11 @@ void vnc_write_u8(VncState *vs, uint8_t value)
void vnc_flush(VncState *vs)
{
vnc_lock_output(vs);
- if (vs->csock != -1 && vs->output.offset) {
+ if (vs->csock != -1 && (vs->output.offset
+#ifdef CONFIG_VNC_WS
+ || vs->ws_output.offset
+#endif
+ )) {
vnc_client_write_locked(vs);
}
vnc_unlock_output(vs);
@@ -2662,7 +2696,7 @@ static void vnc_remove_timer(VncDisplay *vd)
}
}
-static void vnc_connect(VncDisplay *vd, int csock, int skipauth)
+static void vnc_connect(VncDisplay *vd, int csock, int skipauth, bool websocket)
{
VncState *vs = g_malloc0(sizeof(VncState));
int i;
@@ -2689,13 +2723,34 @@ static void vnc_connect(VncDisplay *vd, int csock, int skipauth)
VNC_DEBUG("New client on socket %d\n", csock);
dcl->idle = 0;
socket_set_nonblock(vs->csock);
- qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
+#ifdef CONFIG_VNC_WS
+ if (websocket) {
+ vs->websocket = 1;
+ qemu_set_fd_handler2(vs->csock, NULL, vncws_handshake_read, NULL, vs);
+ } else
+#endif /* CONFIG_VNC_WS */
+ {
+ qemu_set_fd_handler2(vs->csock, NULL, vnc_client_read, NULL, vs);
+ }
vnc_client_cache_addr(vs);
vnc_qmp_event(vs, QEVENT_VNC_CONNECTED);
vnc_set_share_mode(vs, VNC_SHARE_MODE_CONNECTING);
vs->vd = vd;
+
+#ifdef CONFIG_VNC_WS
+ if (!vs->websocket)
+#endif
+ {
+ vnc_init_state(vs);
+ }
+}
+
+void vnc_init_state(VncState *vs)
+{
+ VncDisplay *vd = vs->vd;
+
vs->ds = vd->ds;
vs->last_x = -1;
vs->last_y = -1;
@@ -2727,21 +2782,41 @@ static void vnc_connect(VncDisplay *vd, int csock, int skipauth)
/* vs might be free()ed here */
}
-static void vnc_listen_read(void *opaque)
+static void vnc_listen_read(void *opaque, bool websocket)
{
VncDisplay *vs = opaque;
struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
+ int csock;
/* Catch-up */
vga_hw_update();
+#ifdef CONFIG_VNC_WS
+ if (websocket) {
+ csock = qemu_accept(vs->lwebsock, (struct sockaddr *)&addr, &addrlen);
+ } else
+#endif /* CONFIG_VNC_WS */
+ {
+ csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
+ }
- int csock = qemu_accept(vs->lsock, (struct sockaddr *)&addr, &addrlen);
if (csock != -1) {
- vnc_connect(vs, csock, 0);
+ vnc_connect(vs, csock, 0, websocket);
}
}
+static void vnc_listen_regular_read(void *opaque)
+{
+ vnc_listen_read(opaque, 0);
+}
+
+#ifdef CONFIG_VNC_WS
+static void vnc_listen_websocket_read(void *opaque)
+{
+ vnc_listen_read(opaque, 1);
+}
+#endif /* CONFIG_VNC_WS */
+
void vnc_display_init(DisplayState *ds)
{
VncDisplay *vs = g_malloc0(sizeof(*vs));
@@ -2753,6 +2828,9 @@ void vnc_display_init(DisplayState *ds)
vnc_display = vs;
vs->lsock = -1;
+#ifdef CONFIG_VNC_WS
+ vs->lwebsock = -1;
+#endif
vs->ds = ds;
QTAILQ_INIT(&vs->clients);
@@ -2794,6 +2872,15 @@ static void vnc_display_close(DisplayState *ds)
close(vs->lsock);
vs->lsock = -1;
}
+#ifdef CONFIG_VNC_WS
+ g_free(vs->ws_display);
+ vs->ws_display = NULL;
+ if (vs->lwebsock != -1) {
+ qemu_set_fd_handler2(vs->lwebsock, NULL, NULL, NULL, NULL);
+ close(vs->lwebsock);
+ vs->lwebsock = -1;
+ }
+#endif /* CONFIG_VNC_WS */
vs->auth = VNC_AUTH_INVALID;
#ifdef CONFIG_VNC_TLS
vs->subauth = VNC_AUTH_INVALID;
@@ -2915,6 +3002,36 @@ void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
} else if (strncmp(options, "sasl", 4) == 0) {
sasl = 1; /* Require SASL auth */
#endif
+#ifdef CONFIG_VNC_WS
+ } else if (strncmp(options, "websocket", 9) == 0) {
+ char *start, *end;
+ vs->websocket = 1;
+
+ /* Check for 'websocket=<port>' */
+ start = strchr(options, '=');
+ end = strchr(options, ',');
+ if (start && (!end || (start < end))) {
+ int len = end ? end-(start+1) : strlen(start+1);
+ if (len < 6) {
+ /* extract the host specification from display */
+ char *host = NULL, *port = NULL, *host_end = NULL;
+ port = g_strndup(start + 1, len);
+
+ /* ipv6 hosts have colons */
+ end = strchr(display, ',');
+ host_end = g_strrstr_len(display, end - display, ":");
+
+ if (host_end) {
+ host = g_strndup(display, host_end - display + 1);
+ } else {
+ host = g_strndup(":", 1);
+ }
+ vs->ws_display = g_strconcat(host, port, NULL);
+ g_free(host);
+ g_free(port);
+ }
+ }
+#endif /* CONFIG_VNC_WS */
#ifdef CONFIG_VNC_TLS
} else if (strncmp(options, "tls", 3) == 0) {
tls = 1; /* Require TLS */
@@ -3073,6 +3190,9 @@ void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
/* connect to viewer */
int csock;
vs->lsock = -1;
+#ifdef CONFIG_VNC_WS
+ vs->lwebsock = -1;
+#endif
if (strncmp(display, "unix:", 5) == 0) {
csock = unix_connect(display+5, errp);
} else {
@@ -3081,7 +3201,7 @@ void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
if (csock < 0) {
goto fail;
}
- vnc_connect(vs, csock, 0);
+ vnc_connect(vs, csock, 0, 0);
} else {
/* listen for connects */
char *dpy;
@@ -3092,25 +3212,56 @@ void vnc_display_open(DisplayState *ds, const char *display, Error **errp)
} else {
vs->lsock = inet_listen(display, dpy, 256,
SOCK_STREAM, 5900, errp);
- }
- if (vs->lsock < 0) {
- g_free(dpy);
- goto fail;
+ if (vs->lsock < 0) {
+ g_free(dpy);
+ goto fail;
+ }
+#ifdef CONFIG_VNC_WS
+ if (vs->websocket) {
+ if (vs->ws_display) {
+ vs->lwebsock = inet_listen(vs->ws_display, NULL, 256,
+ SOCK_STREAM, 0, errp);
+ } else {
+ vs->lwebsock = inet_listen(vs->display, NULL, 256,
+ SOCK_STREAM, 5700, errp);
+ }
+
+ if (vs->lwebsock < 0) {
+ if (vs->lsock) {
+ close(vs->lsock);
+ vs->lsock = -1;
+ }
+ g_free(dpy);
+ goto fail;
+ }
+ }
+#endif /* CONFIG_VNC_WS */
}
g_free(vs->display);
vs->display = dpy;
- qemu_set_fd_handler2(vs->lsock, NULL, vnc_listen_read, NULL, vs);
+ qemu_set_fd_handler2(vs->lsock, NULL,
+ vnc_listen_regular_read, NULL, vs);
+#ifdef CONFIG_VNC_WS
+ if (vs->websocket) {
+ qemu_set_fd_handler2(vs->lwebsock, NULL,
+ vnc_listen_websocket_read, NULL, vs);
+ }
+#endif /* CONFIG_VNC_WS */
}
return;
fail:
g_free(vs->display);
vs->display = NULL;
+#ifdef CONFIG_VNC_WS
+ g_free(vs->ws_display);
+ vs->ws_display = NULL;
+#endif /* CONFIG_VNC_WS */
}
void vnc_display_add_client(DisplayState *ds, int csock, int skipauth)
{
VncDisplay *vs = ds ? (VncDisplay *)ds->opaque : vnc_display;
- vnc_connect(vs, csock, skipauth);
+ vnc_connect(vs, csock, skipauth, 0);
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-19 19:58:46 +0000