Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 151 insertions, 0 deletions

diff --git a/third_party/heimdal/lib/krb5/mk_req_ext.c b/third_party/heimdal/lib/krb5/mk_req_ext.c
new file mode 100644
index 0000000..a8a07f1
--- /dev/null
+++ b/third_party/heimdal/lib/krb5/mk_req_ext.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 1997 - 2002 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.
+ */
+
+#include "krb5_locl.h"
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+_krb5_mk_req_internal(krb5_context context,
+		      krb5_auth_context *auth_context,
+		      const krb5_flags ap_req_options,
+		      krb5_data *in_data,
+		      krb5_creds *in_creds,
+		      krb5_data *outbuf,
+		      krb5_key_usage checksum_usage,
+		      krb5_key_usage encrypt_usage)
+{
+    krb5_error_code ret;
+    krb5_data authenticator;
+    Checksum c;
+    Checksum *c_opt;
+    krb5_auth_context ac;
+
+    if(auth_context) {
+	if(*auth_context == NULL)
+	    ret = krb5_auth_con_init(context, auth_context);
+	else
+	    ret = 0;
+	ac = *auth_context;
+    } else
+	ret = krb5_auth_con_init(context, &ac);
+    if(ret)
+	return ret;
+
+    if(ac->local_subkey == NULL && (ap_req_options & AP_OPTS_USE_SUBKEY)) {
+	ret = krb5_auth_con_generatelocalsubkey(context,
+						ac,
+						&in_creds->session);
+	if(ret)
+	    goto out;
+    }
+
+    krb5_free_keyblock(context, ac->keyblock);
+    ret = krb5_copy_keyblock(context, &in_creds->session, &ac->keyblock);
+    if (ret)
+	goto out;
+
+    /*
+     * Use the default checksum type except for some interoperability cases
+     * with older MIT, DCE and Windows KDCs.
+     */
+    if (in_data) {
+	krb5_crypto crypto;
+	krb5_cksumtype checksum_type = CKSUMTYPE_NONE;
+
+	if (ac->keyblock->keytype == ETYPE_DES_CBC_CRC)
+	    checksum_type = CKSUMTYPE_RSA_MD4;
+	else if (ac->keyblock->keytype == ETYPE_DES_CBC_MD4 ||
+		 ac->keyblock->keytype == ETYPE_DES_CBC_MD5 ||
+		 ac->keyblock->keytype == ETYPE_ARCFOUR_HMAC_MD5 ||
+		 ac->keyblock->keytype == ETYPE_ARCFOUR_HMAC_MD5_56)
+	    checksum_type = CKSUMTYPE_RSA_MD5;
+	else
+	    checksum_type = CKSUMTYPE_NONE;
+
+	ret = krb5_crypto_init(context, ac->keyblock, 0, &crypto);
+	if (ret)
+	    goto out;
+
+	_krb5_crypto_set_flags(context, crypto, KRB5_CRYPTO_FLAG_ALLOW_UNKEYED_CHECKSUM);
+	ret = krb5_create_checksum(context,
+				   crypto,
+				   checksum_usage,
+				   checksum_type,
+				   in_data->data,
+				   in_data->length,
+				   &c);
+	krb5_crypto_destroy(context, crypto);
+	c_opt = &c;
+    } else {
+	c_opt = NULL;
+    }
+
+    if (ret)
+	goto out;
+
+    ret = _krb5_build_authenticator(context,
+				    ac,
+				    ac->keyblock->keytype,
+				    in_creds,
+				    c_opt,
+				    &authenticator,
+				    encrypt_usage);
+    if (c_opt)
+	free_Checksum (c_opt);
+    if (ret)
+	goto out;
+
+    ret = krb5_build_ap_req (context, ac->keyblock->keytype,
+			     in_creds, ap_req_options, authenticator, outbuf);
+out:
+    if(auth_context == NULL)
+	krb5_auth_con_free(context, ac);
+    return ret;
+}
+
+KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
+krb5_mk_req_extended(krb5_context context,
+		     krb5_auth_context *auth_context,
+		     const krb5_flags ap_req_options,
+		     krb5_data *in_data,
+		     krb5_creds *in_creds,
+		     krb5_data *outbuf)
+{
+    return _krb5_mk_req_internal (context,
+				 auth_context,
+				 ap_req_options,
+				 in_data,
+				 in_creds,
+				 outbuf,
+				 KRB5_KU_AP_REQ_AUTH_CKSUM,
+				 KRB5_KU_AP_REQ_AUTH);
+}