[spice-gtk 3/9] usb-redir: Prepare for creation of emulated CD drive

[Yuri Benditovich <yuri.benditovich@xxxxxxxxxx>]

Added command-line option for shared CD devices and respective
property in usb-device-manager.

Signed-off-by: Yuri Benditovich <yuri.benditovich@xxxxxxxxxx>
---
 src/spice-option.c       | 15 +++++++++++++++
 src/usb-device-manager.c | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/src/spice-option.c b/src/spice-option.c
index c2b059e..4fbca9f 100644
--- a/src/spice-option.c
+++ b/src/spice-option.c
@@ -32,6 +32,7 @@ static char *smartcard_db = NULL;
 static char *smartcard_certificates = NULL;
 static char *usbredir_auto_redirect_filter = NULL;
 static char *usbredir_redirect_on_connect = NULL;
+static gchar **cd_share_files = NULL;
 static gboolean smartcard = FALSE;
 static gboolean disable_audio = FALSE;
 static gboolean disable_usbredir = FALSE;
@@ -183,6 +184,8 @@ GOptionGroup* spice_get_option_group(void)
           N_("Filter selecting USB devices to be auto-redirected when plugged in"), N_("<filter-string>") },
         { "spice-usbredir-redirect-on-connect", '\0', 0, G_OPTION_ARG_STRING, &usbredir_redirect_on_connect,
           N_("Filter selecting USB devices to redirect on connect"), N_("<filter-string>") },
+        { "spice-share-cd", '\0', 0, G_OPTION_ARG_STRING_ARRAY, &cd_share_files,
+          N_("Name of ISO file or CD/DVD device to share"), N_("<filename> (repeat allowed)") },
         { "spice-cache-size", '\0', 0, G_OPTION_ARG_INT, &cache_size,
           N_("Image cache size (deprecated)"), N_("<bytes>") },
         { "spice-glz-window-size", '\0', 0, G_OPTION_ARG_INT, &glz_window_size,
@@ -272,6 +275,18 @@ void spice_set_session_option(SpiceSession *session)
             g_object_set(m, "redirect-on-connect",
                          usbredir_redirect_on_connect, NULL);
     }
+    if (cd_share_files) {
+        SpiceUsbDeviceManager *m = spice_usb_device_manager_get(session, NULL);
+        if (m) {
+            gchar **name = cd_share_files;
+            while (name && *name) {
+                g_object_set(m, "share-cd", *name, NULL);
+                name++;
+            }
+        }
+        g_strfreev(cd_share_files);
+        cd_share_files = NULL;
+    }
     if (disable_usbredir)
         g_object_set(session, "enable-usbredir", FALSE, NULL);
     if (disable_audio)
diff --git a/src/usb-device-manager.c b/src/usb-device-manager.c
index 0961d16..b11bb15 100644
--- a/src/usb-device-manager.c
+++ b/src/usb-device-manager.c
@@ -75,6 +75,7 @@ enum {
     PROP_AUTO_CONNECT_FILTER,
     PROP_REDIRECT_ON_CONNECT,
     PROP_FREE_CHANNELS,
+    PROP_SHARE_CD
 };
 
 enum
@@ -433,6 +434,26 @@ static void spice_usb_device_manager_set_property(GObject       *gobject,
         priv->redirect_on_connect = g_strdup(filter);
         break;
     }
+    case PROP_SHARE_CD:
+    {
+#ifdef USE_USBREDIR
+        UsbCreateDeviceParameters param = { 0 };
+        const gchar *name = g_value_get_string(value);
+        /* the string is temporary, no need to keep it */
+        SPICE_DEBUG("share_cd set to %s", name);
+        if (name[0] == '!') {
+            name++;
+            param.device_param.create_cd.delete_on_eject = 1;
+        }
+        param.device_param.create_cd.filename = name;
+        if (!spice_usb_backend_create_device(priv->context, USB_DEV_TYPE_CD, &param)) {
+            g_warning(param.error->message);
+            spice_usb_device_manager_device_error(self, NULL, param.error);
+            g_error_free(param.error);
+        }
+#endif
+        break;
+    }
     default:
         G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, prop_id, pspec);
         break;
@@ -523,6 +544,18 @@ static void spice_usb_device_manager_class_init(SpiceUsbDeviceManagerClass *klas
     g_object_class_install_property(gobject_class, PROP_REDIRECT_ON_CONNECT,
                                     pspec);
 
+    /**
+    * SpiceUsbDeviceManager:share-cd:
+    *
+    * Set a string specifying a filename (ISO) or physical CD/DVD device
+    * to share via USB after a Spice connection has been established.
+    *
+    */
+    pspec = g_param_spec_string("share-cd", "Share ISO file or device as CD",
+        "File or device name to share", NULL,
+        G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+    g_object_class_install_property(gobject_class, PROP_SHARE_CD, pspec);
+
     /**
      * SpiceUsbDeviceManager:free-channels:
      *
-- 
2.17.1

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