getkeycreatecon(3)                  SELinux API documentation                  getkeycreatecon(3)



NAME
       getkeycreatecon, setkeycreatecon - get or set the SELinux security context used for creat‐
       ing a new kernel keyrings

SYNOPSIS
       #include <selinux/selinux.h>

       int getkeycreatecon(char **con);

       int getkeycreatecon_raw(char **con);

       int setkeycreatecon(char * context);

       int setkeycreatecon_raw(char * context);

DESCRIPTION
       getkeycreatecon() retrieves the context used for creating  a  new  kernel  keyring.   This
       returned context should be freed with freecon(3) if non-NULL.  getkeycreatecon() sets *con
       to NULL if no keycreate context has been explicitly set by the  program  (i.e.  using  the
       default policy behavior).

       setkeycreatecon()  sets  the  context used for creating a new kernel keyring.  NULL can be
       passed to setkeycreatecon() to reset to the default policy behavior.  The  keycreate  con‐
       text is automatically reset after the next execve(2), so a program doesn't need to explic‐
       itly sanitize it upon startup.

       setkeycreatecon() can be applied prior to library functions  that  internally  perform  an
       file creation, in order to set an file context on the objects.

       getkeycreatecon_raw()  and setkeycreatecon_raw() behave identically to their non-raw coun‐
       terparts but do not perform context translation.

       Note: Signal handlers that perform a setkeycreatecon() must take care to save, reset,  and
       restore the keycreate context to avoid unexpected behavior.

RETURN VALUE
       On error -1 is returned.  On success 0 is returned.

SEE ALSO
       selinux(8), freecon(3), getcon(3), getexeccon(3)



dwalsh AT redhat.com                        9 September 2008                      getkeycreatecon(3)