sepol_genusers(3)				     SE Linux binary policy API documentation					 sepol_genusers(3)

NAME

       sepol_genusers - Generate a new binary policy image with a customized user configuration

SYNOPSIS

       #include <sepol/sepol.h>

       int sepol_genusers(void *data, size_t len, const char *usersdir, void *newdata, size_t *newlen);

       void sepol_set_delusers(int on);

DESCRIPTION

       sepol_genusers generates a new binary policy image from an existing binary policy image stored in the memory region described by the start-
       ing 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 con-
       figuration  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	configura-
       tion 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.

sds@tycho.nsa.gov						   15 March 2005						 sepol_genusers(3)