override keyboard infomation #1950

neutrinolabs · Aug 8, 2021 · badc612 · badc612
1 parent 7e95576
commit badc612
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Showing 4 changed files with 57 additions and 3 deletions.
diff --git a/common/xrdp_client_info.h b/common/xrdp_client_info.h
@@ -33,6 +33,14 @@ struct monitor_info
     int is_primary;
 };
 
+/* xrdp keyboard overrids */
+struct xrdp_keyboard_overrides
+{
+    int type;
+    int subtype;
+    int layout;
+};
+
 /**
  * Information about the xrdp client
  *
@@ -172,9 +180,12 @@ struct xrdp_client_info
 
     int enable_token_login;
     char domain_user_separator[16];
+
+    /* xrdp.override_* values */
+    struct xrdp_keyboard_overrides xrdp_keyboard_overrides;
 };
 
 /* yyyymmdd of last incompatible change to xrdp_client_info */
-#define CLIENT_INFO_CURRENT_VERSION 20210225
+#define CLIENT_INFO_CURRENT_VERSION 20210723
 
 #endif
diff --git a/libxrdp/xrdp_rdp.c b/libxrdp/xrdp_rdp.c
@@ -278,6 +278,18 @@ xrdp_rdp_read_config(const char *xrdp_ini, struct xrdp_client_info *client_info)
         {
             g_strncpy(client_info->domain_user_separator, value, sizeof(client_info->domain_user_separator) - 1);
         }
+        else if (g_strcasecmp(item, "xrdp.override_keyboard_type") == 0)
+        {
+            client_info->xrdp_keyboard_overrides.type = g_atoix(value);
+        }
+        else if (g_strcasecmp(item, "xrdp.override_keyboard_subtype") == 0)
+        {
+            client_info->xrdp_keyboard_overrides.subtype = g_atoix(value);
+        }
+        else if (g_strcasecmp(item, "xrdp.override_keylayout") == 0)
+        {
+            client_info->xrdp_keyboard_overrides.layout = g_atoix(value);
+        }
     }
 
     list_delete(items);

diff --git a/libxrdp/xrdp_sec.c b/libxrdp/xrdp_sec.c
@@ -374,9 +374,34 @@ xrdp_load_keyboard_layout(struct xrdp_client_info *client_info)
     char keyboard_cfg_file[256] = { 0 };
     char rdp_layout[256] = { 0 };
 
-    LOG(LOG_LEVEL_INFO, "xrdp_load_keyboard_layout: keyboard_type [%d] keyboard_subtype [%d]",
-        client_info->keyboard_type, client_info->keyboard_subtype);
+    const struct xrdp_keyboard_overrides *ko =
+            &client_info->xrdp_keyboard_overrides;
 
+    LOG(LOG_LEVEL_INFO, "xrdp_load_keyboard_layout: Keyboard information sent"
+        " by the RDP client, keyboard_type:[0x%02X], keyboard_subtype:[0x%02X],"
+        " keylayout:[0x%08X]",
+        client_info->keyboard_type, client_info->keyboard_subtype,
+        client_info->keylayout);
+
+    if (ko->type != 0)
+    {
+        LOG(LOG_LEVEL_INFO, "overrode keyboard_type 0x%02X"
+            " with 0x%02X", client_info->keyboard_type, ko->type);
+        client_info->keyboard_type = ko->type;
+    }
+    if (ko->subtype != 0)
+    {
+        LOG(LOG_LEVEL_INFO, "overrode keyboard_subtype 0x%02X"
+            " with 0x%02X", client_info->keyboard_subtype,
+            ko->subtype);
+        client_info->keyboard_subtype = ko->subtype;
+    }
+    if (ko->layout != 0)
+    {
+        LOG(LOG_LEVEL_INFO, "overrode keylayout 0x%08X"
+            " with 0x%08X", client_info->keylayout, ko->layout);
+        client_info->keylayout = ko->layout;
+    }
     /* infer model/variant */
     /* TODO specify different X11 keyboard models/variants */
     g_memset(client_info->model, 0, sizeof(client_info->model));

diff --git a/xrdp/xrdp.ini.in b/xrdp/xrdp.ini.in
@@ -63,6 +63,12 @@ ssl_protocols=TLSv1.2, TLSv1.3
 ; for example when the server is multi homed with SSSd
 #domain_user_separator=@
 
+; The following options will override the keyboard layout settings.
+; These options are for DEBUG and are not recommended for regular use.
+#xrdp.override_keyboard_type=0x04
+#xrdp.override_keyboard_subtype=0x01
+#xrdp.override_keylayout=0x00000409
+
 ; Section name to use for automatic login if the client sends username
 ; and password. If empty, the domain name sent by the client is used.
 ; If empty and no domain name is given, the first suitable section in