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get_ordered_context_list(3)	    SELinux	   get_ordered_context_list(3)

NAME
       get_ordered_context_list,	  get_ordered_context_list_with_level,
       get_default_context,  get_default_context_with_level,  get_default_con‐
       text_with_role, get_default_context_with_rolelevel, query_user_context,
       manual_user_enter_context, get_default_role -  determine	 SELinux  con‐
       text(s) for user sessions

SYNOPSIS
       #include <selinux/selinux.h>
       #include <selinux/get_context_list.h>

       int get_ordered_context_list(const char *user, security_context_t from‐
       con, security_context_t **list);

       int get_ordered_context_list_with_level(const char  *user,  const  char
       *level, security_context_t fromcon, security_context_t **list);

       int  get_default_context(const  char *user, security_context_t fromcon,
       security_context_t *newcon);

       int get_default_context_with_level(const char *user, const char *level,
       security_context_t fromcon, security_context_t *newcon);

       int  get_default_context_with_role(const	 char *user, const char *role,
       security_context_t fromcon, security_context_t *newcon);

       int get_default_context_with_rolelevel(const  char  *user,  const  char
       *level,	const  char  *role,  security_context_t fromcon, security_con‐
       text_t *newcon);

       int  query_user_context(security_context_t  *list,   security_context_t
       *newcon);

       int   manual_user_enter_context(const  char  *user,  security_context_t
       *newcon);

       int get_default_type(const char *role, char **type);

DESCRIPTION
       get_ordered_context_list() invokes the  security_compute_user(3)	 func‐
       tion  to	 obtain	 the  list of contexts for the specified user that are
       reachable from the specified fromcon context.  The function then orders
       the	 resulting	 list	    based      on      the	global
       /etc/selinux/{SELINUXTYPE}/contexts/default_contexts file and the  per-
       user  /etc/selinux/{SELINUXTYPE}/contexts/users/<username>  file	 if it
       exists.	The fromcon parameter may be NULL to indicate that the current
       context should be used.	The function returns the number of contexts in
       the list, or -1	upon  errors.	The  list  must	 be  freed  using  the
       freeconary(3) function.

       get_ordered_context_list_with_level()		invokes		   the
       get_ordered_context_list() function and applies the specified level.

       get_default_context() is the  same  as  get_ordered_context_list()  but
       only returns a single context which has to be freed with freecon(3).

       get_default_context_with_level()	  invokes   the	 get_default_context()
       function and applies the specified level.

       get_default_context_with_role() is the  same  as	 get_default_context()
       but  only returns a context with the specified role, returning -1 if no
       such context is reachable for the user.

       get_default_context_with_rolelevel()	       invokes		   the
       get_default_context_with_role()	function  and  applies	the  specified
       level.

       query_user_context() takes a list of contexts,  queries	the  user  via
       stdin/stdout  as	 to which context they want, and returns a new context
       as selected by the user (which has to be freed with freecon(3)).

       manual_user_enter_context() allows the user to manually enter a context
       as  a  fallback if a list of authorized contexts could not be obtained.
       Caller must free via freecon(3).

       get_default_type() Get the default type (domain) for role and set  type
       to refer to it, which has to be freed with free.

RETURN VALUE
       get_ordered_context_list()   and	 get_ordered_context_list_with_level()
       return the number of contexts in the  list  upon	 success  or  -1  upon
       errors.	The other functions return 0 for success or -1 for errors.

SEE ALSO
       selinux(8), freeconary(3), freecon(3), security_compute_av(3),
       getseuserbyname(3)

russell@coker.com.au		1 January 2004	   get_ordered_context_list(3)
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