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);
DESCRIPTIONget_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 VALUEget_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 ALSOselinux(8), freeconary(3), freecon(3), security_compute_av(3),
getseuserbyname(3)russell@coker.com.au 1 January 2004 get_ordered_context_list(3)