heimdal: Vendor import f62e2f278vendor/heimdal/7.8.0-2023-06-10-f62e2f278vendor/heimdal

Heimdal 7.8.0 does not support OpenSSL 3.0. 7.9.0 will but it hasn't
been released yet. We are importing f62e2f278 for its OpenSSL 3.0
support.

1 files changed, 132 insertions, 0 deletions

diff --git a/kdc/kdc-plugin.h b/kdc/kdc-plugin.h
new file mode 100644
index 000000000000..05286257bf73
--- /dev/null
+++ b/kdc/kdc-plugin.h
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2006 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef HEIMDAL_KDC_KDC_PLUGIN_H
+#define HEIMDAL_KDC_KDC_PLUGIN_H 1
+
+#include <krb5.h>
+#include <kdc.h>
+#include <kdc-accessors.h>
+#include <hdb.h>
+
+/*
+ * Allocate a PAC for the given client with krb5_pac_init(),
+ * and fill its contents in with krb5_pac_add_buffer().
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_pac_generate)(void *,
+					     astgs_request_t,
+					     hdb_entry *, /* client */
+					     hdb_entry *, /* server */
+					     const krb5_keyblock *, /* pk_replykey */
+					     uint64_t,	      /* pac_attributes */
+					     krb5_pac *);
+
+/*
+ * Verify the PAC KDC signatures by fetching the appropriate TGS key
+ * and calling krb5_pac_verify() with that key. Optionally update the
+ * PAC buffers on success.
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_pac_verify)(void *,
+					   astgs_request_t,
+					   const krb5_principal, /* new ticket client */
+					   const krb5_principal, /* delegation proxy */
+					   hdb_entry *,/* client */
+					   hdb_entry *,/* server */
+					   hdb_entry *,/* krbtgt */
+					   krb5_pac *);
+
+/*
+ * Authorize the client principal's access to the Authentication Service (AS).
+ * This function is called after any pre-authentication has completed.
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_client_access)(void *, astgs_request_t);
+
+/*
+ * A referral policy plugin can either rewrite the server principal
+ * by resetting priv->server_princ, or it can disable referral
+ * processing entirely by returning an error.
+ *
+ * The error code from the previous server lookup is available as r->ret.
+ *
+ * If the function returns KRB5_PLUGIN_NO_HANDLE, the TGS will continue
+ * with its default referral handling.
+ *
+ * Note well: the plugin should free priv->server_princ is replacing.
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_referral_policy)(void *, astgs_request_t);
+
+/*
+ * Update the AS or TGS reply immediately prior to encoding.
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_finalize_reply)(void *, astgs_request_t);
+
+/*
+ * Audit an AS or TGS request. This function is called after encoding the
+ * reply (on success), or before encoding the error message. If a HDB audit
+ * function is also present, it is called after this one.
+ *
+ * The request should not be modified by the plugin.
+ */
+
+typedef krb5_error_code
+(KRB5_CALLCONV *krb5plugin_kdc_audit)(void *, astgs_request_t);
+
+/*
+ * Plugins should carefully check API contract notes for changes
+ * between plugin API versions.
+ */
+#define KRB5_PLUGIN_KDC_VERSION_10	10
+
+typedef struct krb5plugin_kdc_ftable {
+    HEIM_PLUGIN_FTABLE_COMMON_ELEMENTS(krb5_context);
+    krb5plugin_kdc_pac_generate		pac_generate;
+    krb5plugin_kdc_pac_verify		pac_verify;
+    krb5plugin_kdc_client_access	client_access;
+    krb5plugin_kdc_referral_policy	referral_policy;
+    krb5plugin_kdc_finalize_reply	finalize_reply;
+    krb5plugin_kdc_audit		audit;
+} krb5plugin_kdc_ftable;
+
+#endif /* HEIMDAL_KDC_KDC_PLUGIN_H */