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-.. _profile_plugin:
-
-Configuration interface (profile)
-=================================
-
-The profile interface allows a module to control how krb5
-configuration information is obtained by the Kerberos library and
-applications.  For a detailed description of the profile interface,
-see the header file ``<profile.h>``.
-
-.. note::
-
-          The profile interface does not follow the normal conventions
-          for MIT krb5 pluggable interfaces, because it is part of a
-          lower-level component of the krb5 library.
-
-As with other types of plugin modules, a profile module is a Unix
-shared object or Windows DLL, built separately from the krb5 tree.
-The krb5 library will dynamically load and use a profile plugin module
-if it reads a ``module`` directive at the beginning of krb5.conf, as
-described in :ref:`profile_plugin_config`.
-
-A profile module exports a function named ``profile_module_init``
-matching the signature of the profile_module_init_fn type.  This
-function accepts a residual string, which may be used to help locate
-the configuration source.  The function fills in a vtable and may also
-create a per-profile state object.  If the module uses state objects,
-it should implement the **copy** and **cleanup** methods to manage
-them.
-
-A basic read-only profile module need only implement the
-**get_values** and **free_values** methods.  The **get_values** method
-accepts a null-terminated list of C string names (e.g., an array
-containing "libdefaults", "clockskew", and NULL for the **clockskew**
-variable in the :ref:`libdefaults` section) and returns a
-null-terminated list of values, which will be cleaned up with the
-**free_values** method when the caller is done with them.
-
-Iterable profile modules must also define the **iterator_create**,
-**iterator**, **iterator_free**, and **free_string** methods.  The
-core krb5 code does not require profiles to be iterable, but some
-applications may iterate over the krb5 profile object in order to
-present configuration interfaces.
-
-Writable profile modules must also define the **writable**,
-**modified**, **update_relation**, **rename_section**,
-**add_relation**, and **flush** methods.  The core krb5 code does not
-require profiles to be writable, but some applications may write to
-the krb5 profile in order to present configuration interfaces.
-
-The following is an example of a very basic read-only profile module
-which returns a hardcoded value for the **default_realm** variable in
-:ref:`libdefaults`, and provides no other configuration information.
-(For conciseness, the example omits code for checking the return
-values of malloc and strdup.) ::
-
-    #include <stdlib.h>
-    #include <string.h>
-    #include <profile.h>
-
-    static long
-    get_values(void *cbdata, const char *const *names, char ***values)
-    {
-        if (names[0] != NULL && strcmp(names[0], "libdefaults") == 0 &&
-            names[1] != NULL && strcmp(names[1], "default_realm") == 0) {
-            *values = malloc(2 * sizeof(char *));
-            (*values)[0] = strdup("ATHENA.MIT.EDU");
-            (*values)[1] = NULL;
-            return 0;
-        }
-        return PROF_NO_RELATION;
-    }
-
-    static void
-    free_values(void *cbdata, char **values)
-    {
-        char **v;
-
-        for (v = values; *v; v++)
-            free(*v);
-        free(values);
-    }
-
-    long
-    profile_module_init(const char *residual, struct profile_vtable *vtable,
-                        void **cb_ret);
-
-    long
-    profile_module_init(const char *residual, struct profile_vtable *vtable,
-                        void **cb_ret)
-    {
-        *cb_ret = NULL;
-        vtable->get_values = get_values;
-        vtable->free_values = free_values;
-        return 0;
-    }