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authorDaniel P. Berrange <berrange@redhat.com>2018-02-01 16:45:14 +0000
committerGerd Hoffmann <kraxel@redhat.com>2018-02-02 07:47:39 +0100
commit13e1d0e71e78a925848258391a6e616b6b5ae219 (patch)
tree47fb2bacbae32badd0acbf440320c81dae39fcc2 /ui
parent8ea9c80a19da93e93852ab61434b1a33fcbaa97a (diff)
ui: convert VNC server to QIONetListener
The VNC server already has the ability to listen on multiple sockets. Converting it to use the QIONetListener APIs though, will reduce the amount of code in the VNC server and improve the clarity of what is left. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20180201164514.10330-1-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui')
-rw-r--r--ui/vnc.c195
-rw-r--r--ui/vnc.h9
2 files changed, 58 insertions, 146 deletions
diff --git a/ui/vnc.c b/ui/vnc.c
index 33b087221f..93731accb6 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -228,12 +228,12 @@ static VncServerInfo *vnc_server_info_get(VncDisplay *vd)
VncServerInfo *info;
Error *err = NULL;
- if (!vd->nlsock) {
+ if (!vd->listener || !vd->listener->nsioc) {
return NULL;
}
info = g_malloc0(sizeof(*info));
- vnc_init_basic_info_from_server_addr(vd->lsock[0],
+ vnc_init_basic_info_from_server_addr(vd->listener->sioc[0],
qapi_VncServerInfo_base(info), &err);
info->has_auth = true;
info->auth = g_strdup(vnc_auth_name(vd));
@@ -379,7 +379,7 @@ VncInfo *qmp_query_vnc(Error **errp)
VncDisplay *vd = vnc_display_find(NULL);
SocketAddress *addr = NULL;
- if (vd == NULL || !vd->nlsock) {
+ if (vd == NULL || !vd->listener || !vd->listener->nsioc) {
info->enabled = false;
} else {
info->enabled = true;
@@ -388,11 +388,8 @@ VncInfo *qmp_query_vnc(Error **errp)
info->has_clients = true;
info->clients = qmp_query_client_list(vd);
- if (vd->lsock == NULL) {
- return info;
- }
-
- addr = qio_channel_socket_get_local_address(vd->lsock[0], errp);
+ addr = qio_channel_socket_get_local_address(vd->listener->sioc[0],
+ errp);
if (!addr) {
goto out_error;
}
@@ -572,13 +569,14 @@ VncInfo2List *qmp_query_vnc_servers(Error **errp)
info->has_display = true;
info->display = g_strdup(dev->id);
}
- for (i = 0; i < vd->nlsock; i++) {
+ for (i = 0; vd->listener != NULL && i < vd->listener->nsioc; i++) {
info->server = qmp_query_server_entry(
- vd->lsock[i], false, vd->auth, vd->subauth, info->server);
+ vd->listener->sioc[i], false, vd->auth, vd->subauth,
+ info->server);
}
- for (i = 0; i < vd->nlwebsock; i++) {
+ for (i = 0; vd->wslistener != NULL && i < vd->wslistener->nsioc; i++) {
info->server = qmp_query_server_entry(
- vd->lwebsock[i], true, vd->ws_auth,
+ vd->wslistener->sioc[i], true, vd->ws_auth,
vd->ws_subauth, info->server);
}
@@ -3143,36 +3141,18 @@ void vnc_start_protocol(VncState *vs)
qemu_add_mouse_mode_change_notifier(&vs->mouse_mode_notifier);
}
-static gboolean vnc_listen_io(QIOChannel *ioc,
- GIOCondition condition,
- void *opaque)
+static void vnc_listen_io(QIONetListener *listener,
+ QIOChannelSocket *cioc,
+ void *opaque)
{
VncDisplay *vd = opaque;
- QIOChannelSocket *sioc = NULL;
- Error *err = NULL;
- bool isWebsock = false;
- size_t i;
-
- for (i = 0; i < vd->nlwebsock; i++) {
- if (ioc == QIO_CHANNEL(vd->lwebsock[i])) {
- isWebsock = true;
- break;
- }
- }
+ bool isWebsock = listener == vd->wslistener;
- sioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc), &err);
- if (sioc != NULL) {
- qio_channel_set_name(QIO_CHANNEL(sioc),
- isWebsock ? "vnc-ws-server" : "vnc-server");
- qio_channel_set_delay(QIO_CHANNEL(sioc), false);
- vnc_connect(vd, sioc, false, isWebsock);
- object_unref(OBJECT(sioc));
- } else {
- /* client probably closed connection before we got there */
- error_free(err);
- }
-
- return TRUE;
+ qio_channel_set_name(QIO_CHANNEL(cioc),
+ isWebsock ? "vnc-ws-server" : "vnc-server");
+ qio_channel_set_delay(QIO_CHANNEL(cioc), false);
+ vnc_connect(vd, cioc, false, isWebsock);
+ object_unref(OBJECT(cioc));
}
static const DisplayChangeListenerOps dcl_ops = {
@@ -3224,34 +3204,22 @@ void vnc_display_init(const char *id)
static void vnc_display_close(VncDisplay *vd)
{
- size_t i;
if (!vd) {
return;
}
vd->is_unix = false;
- for (i = 0; i < vd->nlsock; i++) {
- if (vd->lsock_tag[i]) {
- g_source_remove(vd->lsock_tag[i]);
- }
- object_unref(OBJECT(vd->lsock[i]));
+
+ if (vd->listener) {
+ qio_net_listener_disconnect(vd->listener);
+ object_unref(OBJECT(vd->listener));
}
- g_free(vd->lsock);
- g_free(vd->lsock_tag);
- vd->lsock = NULL;
- vd->lsock_tag = NULL;
- vd->nlsock = 0;
+ vd->listener = NULL;
- for (i = 0; i < vd->nlwebsock; i++) {
- if (vd->lwebsock_tag[i]) {
- g_source_remove(vd->lwebsock_tag[i]);
- }
- object_unref(OBJECT(vd->lwebsock[i]));
+ if (vd->wslistener) {
+ qio_net_listener_disconnect(vd->wslistener);
+ object_unref(OBJECT(vd->wslistener));
}
- g_free(vd->lwebsock);
- g_free(vd->lwebsock_tag);
- vd->lwebsock = NULL;
- vd->lwebsock_tag = NULL;
- vd->nlwebsock = 0;
+ vd->wslistener = NULL;
vd->auth = VNC_AUTH_INVALID;
vd->subauth = VNC_AUTH_INVALID;
@@ -3303,11 +3271,11 @@ static void vnc_display_print_local_addr(VncDisplay *vd)
SocketAddress *addr;
Error *err = NULL;
- if (!vd->nlsock) {
+ if (!vd->listener || !vd->listener->nsioc) {
return;
}
- addr = qio_channel_socket_get_local_address(vd->lsock[0], &err);
+ addr = qio_channel_socket_get_local_address(vd->listener->sioc[0], &err);
if (!addr) {
return;
}
@@ -3815,68 +3783,6 @@ static int vnc_display_connect(VncDisplay *vd,
}
-static int vnc_display_listen_addr(VncDisplay *vd,
- SocketAddress *addr,
- const char *name,
- QIOChannelSocket ***lsock,
- guint **lsock_tag,
- size_t *nlsock,
- Error **errp)
-{
- QIODNSResolver *resolver = qio_dns_resolver_get_instance();
- SocketAddress **rawaddrs = NULL;
- size_t nrawaddrs = 0;
- Error *listenerr = NULL;
- bool listening = false;
- size_t i;
-
- if (qio_dns_resolver_lookup_sync(resolver, addr, &nrawaddrs,
- &rawaddrs, errp) < 0) {
- return -1;
- }
-
- for (i = 0; i < nrawaddrs; i++) {
- QIOChannelSocket *sioc = qio_channel_socket_new();
-
- qio_channel_set_name(QIO_CHANNEL(sioc), name);
- if (qio_channel_socket_listen_sync(
- sioc, rawaddrs[i], listenerr == NULL ? &listenerr : NULL) < 0) {
- object_unref(OBJECT(sioc));
- continue;
- }
- listening = true;
- (*nlsock)++;
- *lsock = g_renew(QIOChannelSocket *, *lsock, *nlsock);
- *lsock_tag = g_renew(guint, *lsock_tag, *nlsock);
-
- (*lsock)[*nlsock - 1] = sioc;
- (*lsock_tag)[*nlsock - 1] = 0;
- }
-
- for (i = 0; i < nrawaddrs; i++) {
- qapi_free_SocketAddress(rawaddrs[i]);
- }
- g_free(rawaddrs);
-
- if (listenerr) {
- if (!listening) {
- error_propagate(errp, listenerr);
- return -1;
- } else {
- error_free(listenerr);
- }
- }
-
- for (i = 0; i < *nlsock; i++) {
- (*lsock_tag)[i] = qio_channel_add_watch(
- QIO_CHANNEL((*lsock)[i]),
- G_IO_IN, vnc_listen_io, vd, NULL);
- }
-
- return 0;
-}
-
-
static int vnc_display_listen(VncDisplay *vd,
SocketAddress **saddr,
size_t nsaddr,
@@ -3886,25 +3792,34 @@ static int vnc_display_listen(VncDisplay *vd,
{
size_t i;
- for (i = 0; i < nsaddr; i++) {
- if (vnc_display_listen_addr(vd, saddr[i],
- "vnc-listen",
- &vd->lsock,
- &vd->lsock_tag,
- &vd->nlsock,
- errp) < 0) {
- return -1;
+ if (nsaddr) {
+ vd->listener = qio_net_listener_new();
+ qio_net_listener_set_name(vd->listener, "vnc-listen");
+ for (i = 0; i < nsaddr; i++) {
+ if (qio_net_listener_open_sync(vd->listener,
+ saddr[i],
+ errp) < 0) {
+ return -1;
+ }
}
+
+ qio_net_listener_set_client_func(vd->listener,
+ vnc_listen_io, vd, NULL);
}
- for (i = 0; i < nwsaddr; i++) {
- if (vnc_display_listen_addr(vd, wsaddr[i],
- "vnc-ws-listen",
- &vd->lwebsock,
- &vd->lwebsock_tag,
- &vd->nlwebsock,
- errp) < 0) {
- return -1;
+
+ if (nwsaddr) {
+ vd->wslistener = qio_net_listener_new();
+ qio_net_listener_set_name(vd->wslistener, "vnc-ws-listen");
+ for (i = 0; i < nwsaddr; i++) {
+ if (qio_net_listener_open_sync(vd->wslistener,
+ wsaddr[i],
+ errp) < 0) {
+ return -1;
+ }
}
+
+ qio_net_listener_set_client_func(vd->wslistener,
+ vnc_listen_io, vd, NULL);
}
return 0;
diff --git a/ui/vnc.h b/ui/vnc.h
index bbda0540a7..23b4dbbe72 100644
--- a/ui/vnc.h
+++ b/ui/vnc.h
@@ -37,6 +37,7 @@
#include "qemu/buffer.h"
#include "io/channel-socket.h"
#include "io/channel-tls.h"
+#include "io/net-listener.h"
#include <zlib.h>
#include "keymaps.h"
@@ -146,12 +147,8 @@ struct VncDisplay
int num_exclusive;
int connections_limit;
VncSharePolicy share_policy;
- size_t nlsock;
- QIOChannelSocket **lsock;
- guint *lsock_tag;
- size_t nlwebsock;
- QIOChannelSocket **lwebsock;
- guint *lwebsock_tag;
+ QIONetListener *listener;
+ QIONetListener *wslistener;
DisplaySurface *ds;
DisplayChangeListener dcl;
kbd_layout_t *kbd_layout;