NAME¶
getkeycreatecon, setkeycreatecon - get or set the SELinux security context used
for creating 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 context is automatically reset after
the next
execve(2), so a program doesn't need to explicitly 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 counterparts 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)