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https://gitlab.com/libvirt/libvirt.git
synced 2024-12-25 07:05:28 +00:00
qemu: Split out code to generate SPICE command line
Decrease size of qemuBuildGraphicsCommandLine() by splitting out spice-related code into qemuBuildGraphicsSPICECommandLine(). This patch also fixes 2 possible memory leaks on error path in the code that was split-out. The buffer containing the already generated options and a listen address string could be leaked. Also break a few very long lines.
This commit is contained in:
Peter Krempa
parent
6d4804858e
commit
d05b6844c9
@ -5498,6 +5498,181 @@ cleanup:
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return ret;
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}
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static int
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qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
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virCommandPtr cmd,
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virQEMUCapsPtr qemuCaps,
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virDomainGraphicsDefPtr graphics)
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{
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virBuffer opt = VIR_BUFFER_INITIALIZER;
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const char *listenNetwork;
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const char *listenAddr = NULL;
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char *netAddr = NULL;
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int ret;
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int defaultMode = graphics->data.spice.defaultMode;
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int port = graphics->data.spice.port;
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int tlsPort = graphics->data.spice.tlsPort;
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int i;
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if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE)) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice graphics are not supported with this QEMU"));
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goto error;
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}
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if (port > 0 || tlsPort <= 0)
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virBufferAsprintf(&opt, "port=%u", port);
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if (tlsPort > 0) {
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if (!cfg->spiceTLS) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice TLS port set in XML configuration,"
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" but TLS is disabled in qemu.conf"));
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goto error;
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}
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if (port > 0)
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virBufferAddChar(&opt, ',');
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virBufferAsprintf(&opt, "tls-port=%u", tlsPort);
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}
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switch (virDomainGraphicsListenGetType(graphics, 0)) {
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case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
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listenAddr = virDomainGraphicsListenGetAddress(graphics, 0);
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break;
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case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
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listenNetwork = virDomainGraphicsListenGetNetwork(graphics, 0);
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if (!listenNetwork)
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break;
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ret = networkGetNetworkAddress(listenNetwork, &netAddr);
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if (ret <= -2) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
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"%s", _("network-based listen not possible, "
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"network driver not present"));
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goto error;
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}
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if (ret < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("listen network '%s' had no usable address"),
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listenNetwork);
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goto error;
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}
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listenAddr = netAddr;
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/* store the address we found in the <graphics> element so it will
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* show up in status. */
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if (virDomainGraphicsListenSetAddress(graphics, 0,
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listenAddr, -1, false) < 0)
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goto error;
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break;
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}
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if (!listenAddr)
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listenAddr = cfg->spiceListen;
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if (listenAddr)
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virBufferAsprintf(&opt, ",addr=%s", listenAddr);
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VIR_FREE(netAddr);
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if (graphics->data.spice.mousemode) {
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switch (graphics->data.spice.mousemode) {
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case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_SERVER:
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virBufferAsprintf(&opt, ",agent-mouse=off");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_CLIENT:
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virBufferAsprintf(&opt, ",agent-mouse=on");
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break;
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default:
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break;
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}
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}
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/* In the password case we set it via monitor command, to avoid
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* making it visible on CLI, so there's no use of password=XXX
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* in this bit of the code */
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if (!graphics->data.spice.auth.passwd &&
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!cfg->spicePassword)
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virBufferAddLit(&opt, ",disable-ticketing");
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if (cfg->spiceTLS)
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virBufferAsprintf(&opt, ",x509-dir=%s",
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cfg->spiceTLSx509certdir);
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switch (defaultMode) {
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
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virBufferAsprintf(&opt, ",tls-channel=default");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
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virBufferAsprintf(&opt, ",plaintext-channel=default");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
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/* nothing */
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break;
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}
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for (i = 0 ; i < VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_LAST ; i++) {
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int mode = graphics->data.spice.channels[i];
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switch (mode) {
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
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if (!cfg->spiceTLS) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice secure channels set in XML configuration, "
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"but TLS is disabled in qemu.conf"));
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goto error;
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}
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virBufferAsprintf(&opt, ",tls-channel=%s",
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virDomainGraphicsSpiceChannelNameTypeToString(i));
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
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virBufferAsprintf(&opt, ",plaintext-channel=%s",
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virDomainGraphicsSpiceChannelNameTypeToString(i));
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break;
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}
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}
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if (graphics->data.spice.image)
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virBufferAsprintf(&opt, ",image-compression=%s",
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virDomainGraphicsSpiceImageCompressionTypeToString(graphics->data.spice.image));
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if (graphics->data.spice.jpeg)
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virBufferAsprintf(&opt, ",jpeg-wan-compression=%s",
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virDomainGraphicsSpiceJpegCompressionTypeToString(graphics->data.spice.jpeg));
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if (graphics->data.spice.zlib)
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virBufferAsprintf(&opt, ",zlib-glz-wan-compression=%s",
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virDomainGraphicsSpiceZlibCompressionTypeToString(graphics->data.spice.zlib));
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if (graphics->data.spice.playback)
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virBufferAsprintf(&opt, ",playback-compression=%s",
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virDomainGraphicsSpicePlaybackCompressionTypeToString(graphics->data.spice.playback));
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if (graphics->data.spice.streaming)
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virBufferAsprintf(&opt, ",streaming-video=%s",
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virDomainGraphicsSpiceStreamingModeTypeToString(graphics->data.spice.streaming));
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if (graphics->data.spice.copypaste == VIR_DOMAIN_GRAPHICS_SPICE_CLIPBOARD_COPYPASTE_NO)
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virBufferAddLit(&opt, ",disable-copy-paste");
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if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION)) {
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/* If qemu supports seamless migration turn it
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* unconditionally on. If migration destination
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* doesn't support it, it fallbacks to previous
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* migration algorithm silently. */
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virBufferAddLit(&opt, ",seamless-migration=on");
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}
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virCommandAddArg(cmd, "-spice");
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virCommandAddArgBuffer(cmd, &opt);
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if (graphics->data.spice.keymap)
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virCommandAddArgList(cmd, "-k",
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graphics->data.spice.keymap, NULL);
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/* SPICE includes native support for tunnelling audio, so we
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* set the audio backend to point at SPICE's own driver
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*/
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virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=spice");
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return 0;
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error:
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VIR_FREE(netAddr);
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virBufferFreeAndReset(&opt);
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return -1;
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}
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static int
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qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
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virCommandPtr cmd,
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@ -5505,8 +5680,6 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
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virQEMUCapsPtr qemuCaps,
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virDomainGraphicsDefPtr graphics)
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{
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int i;
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if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) {
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virBuffer opt = VIR_BUFFER_INITIALIZER;
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@ -5658,165 +5831,8 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfigPtr cfg,
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virCommandAddArg(cmd, "-sdl");
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} else if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
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virBuffer opt = VIR_BUFFER_INITIALIZER;
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const char *listenNetwork;
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const char *listenAddr = NULL;
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char *netAddr = NULL;
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int ret;
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int defaultMode = graphics->data.spice.defaultMode;
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int port = graphics->data.spice.port;
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int tlsPort = graphics->data.spice.tlsPort;
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if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE)) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice graphics are not supported with this QEMU"));
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if (qemuBuildGraphicsSPICECommandLine(cfg, cmd, qemuCaps, graphics) < 0)
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goto error;
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}
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if (port > 0 || tlsPort <= 0)
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virBufferAsprintf(&opt, "port=%u", port);
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if (tlsPort > 0) {
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if (!cfg->spiceTLS) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice TLS port set in XML configuration,"
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" but TLS is disabled in qemu.conf"));
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goto error;
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}
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if (port > 0)
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virBufferAddChar(&opt, ',');
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virBufferAsprintf(&opt, "tls-port=%u", tlsPort);
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}
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switch (virDomainGraphicsListenGetType(graphics, 0)) {
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case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
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listenAddr = virDomainGraphicsListenGetAddress(graphics, 0);
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break;
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case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
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listenNetwork = virDomainGraphicsListenGetNetwork(graphics, 0);
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if (!listenNetwork)
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break;
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ret = networkGetNetworkAddress(listenNetwork, &netAddr);
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if (ret <= -2) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
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"%s", _("network-based listen not possible, "
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"network driver not present"));
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goto error;
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}
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if (ret < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("listen network '%s' had no usable address"),
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listenNetwork);
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goto error;
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}
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listenAddr = netAddr;
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/* store the address we found in the <graphics> element so it will
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* show up in status. */
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if (virDomainGraphicsListenSetAddress(graphics, 0,
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listenAddr, -1, false) < 0)
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goto error;
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break;
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}
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if (!listenAddr)
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listenAddr = cfg->spiceListen;
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if (listenAddr)
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virBufferAsprintf(&opt, ",addr=%s", listenAddr);
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VIR_FREE(netAddr);
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int mm = graphics->data.spice.mousemode;
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if (mm) {
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switch (mm) {
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case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_SERVER:
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virBufferAsprintf(&opt, ",agent-mouse=off");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_MOUSE_MODE_CLIENT:
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virBufferAsprintf(&opt, ",agent-mouse=on");
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break;
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default:
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break;
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}
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}
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/* In the password case we set it via monitor command, to avoid
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* making it visible on CLI, so there's no use of password=XXX
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* in this bit of the code */
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if (!graphics->data.spice.auth.passwd &&
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!cfg->spicePassword)
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virBufferAddLit(&opt, ",disable-ticketing");
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if (cfg->spiceTLS)
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virBufferAsprintf(&opt, ",x509-dir=%s",
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cfg->spiceTLSx509certdir);
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switch (defaultMode) {
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
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virBufferAsprintf(&opt, ",tls-channel=default");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
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virBufferAsprintf(&opt, ",plaintext-channel=default");
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_ANY:
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/* nothing */
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break;
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}
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for (i = 0 ; i < VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_LAST ; i++) {
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int mode = graphics->data.spice.channels[i];
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switch (mode) {
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_SECURE:
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if (!cfg->spiceTLS) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("spice secure channels set in XML configuration, but TLS is disabled in qemu.conf"));
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goto error;
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}
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virBufferAsprintf(&opt, ",tls-channel=%s",
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virDomainGraphicsSpiceChannelNameTypeToString(i));
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break;
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case VIR_DOMAIN_GRAPHICS_SPICE_CHANNEL_MODE_INSECURE:
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virBufferAsprintf(&opt, ",plaintext-channel=%s",
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virDomainGraphicsSpiceChannelNameTypeToString(i));
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break;
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}
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}
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if (graphics->data.spice.image)
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virBufferAsprintf(&opt, ",image-compression=%s",
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virDomainGraphicsSpiceImageCompressionTypeToString(graphics->data.spice.image));
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if (graphics->data.spice.jpeg)
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virBufferAsprintf(&opt, ",jpeg-wan-compression=%s",
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virDomainGraphicsSpiceJpegCompressionTypeToString(graphics->data.spice.jpeg));
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if (graphics->data.spice.zlib)
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virBufferAsprintf(&opt, ",zlib-glz-wan-compression=%s",
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virDomainGraphicsSpiceZlibCompressionTypeToString(graphics->data.spice.zlib));
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if (graphics->data.spice.playback)
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virBufferAsprintf(&opt, ",playback-compression=%s",
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virDomainGraphicsSpicePlaybackCompressionTypeToString(graphics->data.spice.playback));
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if (graphics->data.spice.streaming)
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virBufferAsprintf(&opt, ",streaming-video=%s",
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virDomainGraphicsSpiceStreamingModeTypeToString(graphics->data.spice.streaming));
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if (graphics->data.spice.copypaste == VIR_DOMAIN_GRAPHICS_SPICE_CLIPBOARD_COPYPASTE_NO)
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virBufferAddLit(&opt, ",disable-copy-paste");
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if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION)) {
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/* If qemu supports seamless migration turn it
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* unconditionally on. If migration destination
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* doesn't support it, it fallbacks to previous
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* migration algorithm silently. */
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virBufferAddLit(&opt, ",seamless-migration=on");
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}
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virCommandAddArg(cmd, "-spice");
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virCommandAddArgBuffer(cmd, &opt);
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if (graphics->data.spice.keymap)
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virCommandAddArgList(cmd, "-k",
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graphics->data.spice.keymap, NULL);
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/* SPICE includes native support for tunnelling audio, so we
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* set the audio backend to point at SPICE's own driver
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*/
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virCommandAddEnvString(cmd, "QEMU_AUDIO_DRV=spice");
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} else {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
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_("unsupported graphics type '%s'"),
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