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+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/krb5/kadm5_hook_plugin.h	Tue Mar 18 17:55:14 2025 -0400
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+/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+/*
+ * Copyright (C) 2010 by the Massachusetts Institute of Technology.
+ * All rights reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ */
+
+#ifndef H_KRB5_KADM5_HOOK_PLUGIN
+#define H_KRB5_KADM5_HOOK_PLUGIN
+
+/**
+ * @file krb5/krb5_kadm5_hook_plugin.h
+ * Provide a plugin interface for kadm5 operations. This interface
+ * permits a plugin to intercept principal modification, creation and
+ * change password operations. Operations run at two stages: a
+ * precommit stage that runs before the operation is committed to the
+ * database and a postcommit operation that runs after the database
+ * is updated; see #kadm5_hook_stage for details on semantics.
+ *
+ * This interface is based on a proposed extension to Heimdal by Russ
+ * Allbery; it is likely that Heimdal will adopt an approach based on
+ * stacked kdb modules rather than this interface. For MIT, writing a
+ * plugin to this interface is significantly easier than stacking kdb
+ * modules. Also, the kadm5 interface is significantly more stable
+ * than the kdb interface, so this approach is more desirable than
+ * stacked kdb modules.
+ *
+ * This interface depends on kadm5/admin.h. As such, the interface
+ * does not provide strong guarantees of ABI stability.
+ *
+ * The kadm5_hook interface currently has only one supported major version,
+ * which is 1.  Major version 1 has a current minor version number of 2.
+ *
+ * kadm5_hook plugins should:
+ * kadm5_hook_<modulename>_initvt, matching the signature:
+ *
+ *   krb5_error_code
+ *   kadm5_hook_modname_initvt(krb5_context context, int maj_ver, int min_ver,
+ *                         krb5_plugin_vtable vtable);
+ *
+ * The initvt function should:
+ *
+ * - Check that the supplied maj_ver number is supported by the module, or
+ *   return KRB5_PLUGIN_VER_NOTSUPP if it is not.
+ *
+ * - Cast the vtable pointer as appropriate for maj_ver:
+ *     maj_ver == 1: Cast to kadm5_hook_vftable_1
+ *
+ * - Initialize the methods of the vtable, stopping as appropriate for the
+ *   supplied min_ver.  Optional methods may be left uninitialized.
+ *
+ * Memory for the vtable is allocated by the caller, not by the module.
+ */
+
+#include <krb5/krb5.h>
+#include <krb5/plugin.h>
+#include <kadm5/admin.h>
+
+/**
+ * Whether the operation is being run before or after the database
+ * update.
+ */
+enum kadm5_hook_stage {
+    /** In this stage, any plugin failure prevents following plugins from
+     *         running and aborts the operation.*/
+    KADM5_HOOK_STAGE_PRECOMMIT,
+    /** In this stage, plugin failures are logged but otherwise ignored.*/
+    KADM5_HOOK_STAGE_POSTCOMMIT
+};
+
+/** Opaque module data pointer. */
+typedef struct kadm5_hook_modinfo_st kadm5_hook_modinfo;
+
+/**
+ * Interface for the v1 virtual table for the kadm5_hook plugin.
+ * All entry points are optional. The name field must be provided.
+ */
+typedef struct kadm5_hook_vtable_1_st {
+
+    /** A text string identifying the plugin for logging messages. */
+    const char *name;
+
+    /** Initialize a plugin module.
+     * @param modinfo returns newly allocated module info for future
+     * calls.  Cleaned up by the fini() function.
+     */
+    kadm5_ret_t (*init)(krb5_context, kadm5_hook_modinfo **modinfo);
+
+    /** Clean up a module and free @a modinfo. */
+    void (*fini)(krb5_context, kadm5_hook_modinfo *modinfo);
+
+    /** Indicates that the password is being changed.
+     * @param stage is an integer from #kadm5_hook_stage enumeration
+     * @param keepold is true if existing keys are being kept.
+     * @param newpass is NULL if the key sare being randomized.
+     */
+    kadm5_ret_t (*chpass)(krb5_context,
+                          kadm5_hook_modinfo *modinfo,
+                          int stage,
+                          krb5_principal, krb5_boolean keepold,
+                          int n_ks_tuple,
+                          krb5_key_salt_tuple *ks_tuple,
+                          const char *newpass);
+
+    /** Indicate a principal is created. */
+    kadm5_ret_t (*create)(krb5_context,
+                          kadm5_hook_modinfo *,
+                          int stage,
+                          kadm5_principal_ent_t, long mask,
+                          int n_ks_tuple,
+                          krb5_key_salt_tuple *ks_tuple,
+                          const char *password);
+
+    /** Modify a principal. */
+    kadm5_ret_t (*modify)(krb5_context,
+                          kadm5_hook_modinfo *,
+                          int stage,
+                          kadm5_principal_ent_t, long mask);
+
+    /** Indicate a principal is deleted. */
+    kadm5_ret_t (*remove)(krb5_context,
+                          kadm5_hook_modinfo *modinfo,
+                          int stage, krb5_principal);
+
+    /* End of minor version 1. */
+
+    /** Indicate a principal is renamed. */
+    kadm5_ret_t (*rename)(krb5_context,
+                          kadm5_hook_modinfo *modinfo,
+                          int stage, krb5_principal, krb5_principal);
+
+    /* End of minor version 2. */
+
+} kadm5_hook_vftable_1;
+
+#endif /*H_KRB5_KADM5_HOOK_PLUGIN*/