1 files changed, 66 insertions, 0 deletions
diff --git a/src/lib/gssapi/mechglue/g_decapsulate_token.c b/src/lib/gssapi/mechglue/g_decapsulate_token.c
new file mode 100644
index 000000000000..934d2607cc6c
--- /dev/null
+++ b/src/lib/gssapi/mechglue/g_decapsulate_token.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2011, PADL Software Pty Ltd.
+ * 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 PADL Software 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 PADL SOFTWARE 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 PADL SOFTWARE 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 "mglueP.h"
+
+OM_uint32 KRB5_CALLCONV
+gss_decapsulate_token(gss_const_buffer_t input_token,
+                      gss_const_OID token_oid,
+                      gss_buffer_t output_token)
+{
+    OM_uint32 minor;
+    unsigned int body_size = 0;
+    unsigned char *buf_in;
+
+    if (input_token == GSS_C_NO_BUFFER || token_oid == GSS_C_NO_OID)
+        return GSS_S_CALL_INACCESSIBLE_READ;
+
+    if (output_token == GSS_C_NO_BUFFER)
+        return GSS_S_CALL_INACCESSIBLE_WRITE;
+
+    buf_in = input_token->value;
+
+    minor = g_verify_token_header(token_oid, &body_size, &buf_in,
+                                  -1, input_token->length,
+                                  G_VFY_TOKEN_HDR_WRAPPER_REQUIRED);
+    if (minor != 0)
+        return GSS_S_DEFECTIVE_TOKEN;
+
+    output_token->value = malloc(body_size);
+    if (output_token->value == NULL)
+        return GSS_S_FAILURE;
+
+    memcpy(output_token->value, buf_in, body_size);
+    output_token->length = body_size;
+
+    return GSS_S_COMPLETE;
+}