r8302: import mini HEIMDAL into the tree

(This used to be commit 118be28a7aef233799956615a99d1a2a74dac175)

1 files changed, 133 insertions, 0 deletions

diff --git a/source4/heimdal/lib/krb5/rd_rep.c b/source4/heimdal/lib/krb5/rd_rep.c
new file mode 100644
index 0000000000..a92eea5c04
--- /dev/null
+++ b/source4/heimdal/lib/krb5/rd_rep.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 1997 - 2001 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>
+
+RCSID("$Id: rd_rep.c,v 1.25 2005/06/17 07:49:33 lha Exp $");
+
+krb5_error_code KRB5_LIB_FUNCTION
+_krb5_rd_rep_type(krb5_context context,
+		 krb5_auth_context auth_context,
+		 const krb5_data *inbuf,
+		 krb5_ap_rep_enc_part **repl,
+		 krb5_boolean dce_style_response)
+{
+  krb5_error_code ret;
+  AP_REP ap_rep;
+  size_t len;
+  krb5_data data;
+  krb5_crypto crypto;
+
+  krb5_data_zero (&data);
+  ret = 0;
+
+  ret = decode_AP_REP(inbuf->data, inbuf->length, &ap_rep, &len);
+  if (ret)
+      return ret;
+  if (ap_rep.pvno != 5) {
+    ret = KRB5KRB_AP_ERR_BADVERSION;
+    krb5_clear_error_string (context);
+    goto out;
+  }
+  if (ap_rep.msg_type != krb_ap_rep) {
+    ret = KRB5KRB_AP_ERR_MSG_TYPE;
+    krb5_clear_error_string (context);
+    goto out;
+  }
+
+  ret = krb5_crypto_init(context, auth_context->keyblock, 0, &crypto);
+  if (ret)
+      goto out;
+  ret = krb5_decrypt_EncryptedData (context, 
+				    crypto,	
+				    KRB5_KU_AP_REQ_ENC_PART,
+				    &ap_rep.enc_part,
+				    &data);
+  krb5_crypto_destroy(context, crypto);
+  if (ret)
+      goto out;
+
+  *repl = malloc(sizeof(**repl));
+  if (*repl == NULL) {
+    ret = ENOMEM;
+    krb5_set_error_string (context, "malloc: out of memory");
+    goto out;
+  }
+  ret = krb5_decode_EncAPRepPart(context,
+				 data.data,
+				 data.length,
+				 *repl, 
+				 &len);
+  if (ret)
+      return ret;
+
+  if (!dce_style_response) {  
+      if ((*repl)->ctime != auth_context->authenticator->ctime ||
+          (*repl)->cusec != auth_context->authenticator->cusec) {
+        ret = KRB5KRB_AP_ERR_MUT_FAIL;
+        krb5_set_error_string (context, "Mutual authentication failed: Timestamps mismatch");
+        goto out;
+      }
+  }
+  if ((*repl)->seq_number)
+      krb5_auth_con_setremoteseqnumber(context, auth_context,
+				       *((*repl)->seq_number));
+  if ((*repl)->subkey)
+    krb5_auth_con_setremotesubkey(context, auth_context, (*repl)->subkey);
+  
+out:
+  krb5_data_free (&data);
+  free_AP_REP (&ap_rep);
+  return ret;
+}
+
+krb5_error_code KRB5_LIB_FUNCTION
+krb5_rd_rep(krb5_context context,
+	    krb5_auth_context auth_context,
+	    const krb5_data *inbuf,
+	    krb5_ap_rep_enc_part **repl)
+{
+    return _krb5_rd_rep_type(context,
+			     auth_context, 
+			     inbuf,
+			     repl,
+			     FALSE);
+}
+	
+void KRB5_LIB_FUNCTION
+krb5_free_ap_rep_enc_part (krb5_context context,
+			   krb5_ap_rep_enc_part *val)
+{
+    free_EncAPRepPart (val);
+    free (val);
+}