X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=unwrap.c;h=ae35bf9f9222d84ac51c5f3610cf669c0f262ca1;hb=refs%2Fheads%2Fjson-name;hp=3e0654bfc89622e45b276dd4605e2a0311459de1;hpb=31cef49681566dc99790812f31de834dfce02c74;p=mech_eap.orig

diff --git a/unwrap.c b/unwrap.c
index 3e0654b..ae35bf9 100644
--- a/unwrap.c
+++ b/unwrap.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, JANET(UK)
+ * Copyright (c) 2011, JANET(UK)
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -30,5 +30,56 @@
  * SUCH DAMAGE.
  */
 
+/*
+ * Message protection services: unwrap.
+ */
+
 #include "gssapiP_eap.h"
 
+OM_uint32
+gss_unwrap(OM_uint32 *minor,
+           gss_ctx_id_t ctx,
+           gss_buffer_t input_message_buffer,
+           gss_buffer_t output_message_buffer,
+           int *conf_state,
+           gss_qop_t *qop_state)
+{
+    OM_uint32 major, tmpMinor;
+    gss_iov_buffer_desc iov[2];
+
+    if (ctx == GSS_C_NO_CONTEXT) {
+        *minor = EINVAL;
+        return GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT;
+    }
+
+    *minor = 0;
+
+    GSSEAP_MUTEX_LOCK(&ctx->mutex);
+
+    if (!CTX_IS_ESTABLISHED(ctx)) {
+        major = GSS_S_NO_CONTEXT;
+        *minor = GSSEAP_CONTEXT_INCOMPLETE;
+        goto cleanup;
+    }
+
+    iov[0].type = GSS_IOV_BUFFER_TYPE_STREAM;
+    iov[0].buffer = *input_message_buffer;
+
+    iov[1].type = GSS_IOV_BUFFER_TYPE_DATA | GSS_IOV_BUFFER_FLAG_ALLOCATE;
+    iov[1].buffer.value = NULL;
+    iov[1].buffer.length = 0;
+
+    major = gssEapUnwrapOrVerifyMIC(minor, ctx, conf_state, qop_state,
+                                    iov, 2, TOK_TYPE_WRAP);
+    if (major == GSS_S_COMPLETE) {
+        *output_message_buffer = iov[1].buffer;
+    } else {
+        if (iov[1].type & GSS_IOV_BUFFER_FLAG_ALLOCATED)
+            gss_release_buffer(&tmpMinor, &iov[1].buffer);
+    }
+
+cleanup:
+    GSSEAP_MUTEX_UNLOCK(&ctx->mutex);
+
+    return major;
+}