diff options
Diffstat (limited to 'fixesproto.txt')
| -rw-r--r-- | fixesproto.txt | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/fixesproto.txt b/fixesproto.txt index 28a6270..f462606 100644 --- a/fixesproto.txt +++ b/fixesproto.txt @@ -1,5 +1,5 @@ The XFIXES Extension - Version 5.0 + Version 6.1 Document Revision 1 2010-11-15 Keith Packard @@ -666,15 +666,41 @@ when the relevant X11 clients have quit. XFixesClientDisconnectFlagDefault: 0 XFixesClientDisconnectFlagTerminate: 1 << 0 + XFixesClientDisconnectFlagForceTerminate: 1 << 1 XFixesClientDisconnectFlagDefault is the default behavior for - regular clients, i.e. the X11 server won't terminate as long as such - clients are still connected. + regular clients: the X11 server won't terminate as long as such + clients are still connected and no other clients trigger + termination. XFixesClientDisconnectFlagTerminate indicates to the X11 server that it can ignore the client and terminate itself even though the client is still connected to the X11 server. + If XFixesClientDisconnectFlagForceTerminate is set at the time the + client disconnects, the X11 server MUST terminate and/or reset without + delivering further events to clients, even if other clients that have + not set XFixesClientDisconnectFlagTerminate are still connected. + Screen lockers SHOULD use this flag to ensure that the screen does not + unlock if they exit, which would create a security vulnerability. + Programs SHOULD NOT use this flag unless unexpected termination would + create a security vulnerability or other severe problem. + + Because XFixesClientDisconnectFlagForceTerminate allows the client to + cause the server to terminate, it is subject to security checks to + prevent unauthorized use. Servers that support the X Access Control + Extension (XACE) MUST deny attempts to set + XFixesClientDisconnectFlagForceTerminate, unless the client has + DixManageAccess to the server. Servers that support the SECURITY + extension MUST forbid untrusted clients from setting + XFixesClientDisconnectFlagForceTerminate. Servers MAY refuse to allow + clients to set this flag for other reasons. For instance, a server + might only allow the flag to be set by local clients. If the server + refuses to allow the client to set this flag, an Access error results. + + XFixesClientDisconnectFlagForceTerminate is only available in XFixes + versions 6.1 and better. + 13.2 Requests SetClientDisconnectMode |