sepol_genusers
generates a new binary policy image from
an existing binary policy image stored in the memory region described by
the starting address
data
and the length
len
and a pair of user configuration files named
system.users
and
local.users
from the directory specified by
usersdir.
The resulting binary policy is placed into dynamically allocated
memory and the variables
newdata
and
newlen
are set to refer to the new binary image's starting address and length.
The original binary policy image is not modified.
By default,
sepol_genusers
will preserve user entries that are defined in the original binary policy image
but not defined in the user configuration files. If such user entries
should instead by omitted entirely from the new binary policy image, then
the
sepol_set_delusers
function may be called with
on
set to 1 prior to calling
sepol_genusers
in order to enable deletion of such users.
RETURN VALUE
Returns 0 on success or -1 otherwise, with errno set appropriately.
An errno of ENOENT indicates that one or both of the user
configuration files did not exist. An errno of EINVAL indicates that
either the original binary policy image or the generated one were
invalid. An errno of ENOMEM indicates that insufficient memory was
available to process the original binary policy image or to generate
the new policy image. Invalid entries in the user configuration files
are skipped with a warning.
