\subsection*{ipc\_perm}
The \ds{ipc\_perm} data structure describes the access permissions  
of a System V IPC object .
\SeeModule{include/linux/\\ipc.h}
\begin{tscreen}\begin{verbatim}
struct ipc_perm
{
  key_t  key;
  ushort uid;   /* owner euid and egid */
  ushort gid;
  ushort cuid;  /* creator euid and egid */
  ushort cgid;
  ushort mode;  /* access modes see mode flags below */
  ushort seq;   /* sequence number */
};
\end{verbatim}\end{tscreen}
