From e66e4e067cad899c280824fceb3016c037d0acc8 Mon Sep 17 00:00:00 2001
From: Günther Deschner <gdeschner@redhat.com>
Date: Aug 31 2012 20:26:38 +0000
Subject: Implement gp_wrap_size_limit().


Acked-by: Simo Sorce <simo@redhat.com>

---

diff --git a/proxy/Makefile.am b/proxy/Makefile.am
index 20b3308..15f29e2 100644
--- a/proxy/Makefile.am
+++ b/proxy/Makefile.am
@@ -134,6 +134,7 @@ gssproxy_SOURCES = \
     src/gp_rpc_verify_mic.c \
     src/gp_rpc_wrap.c \
     src/gp_rpc_unwrap.c \
+    src/gp_rpc_wrap_size_limit.c \
     src/gssproxy.c
 
 cli_srv_comm_SOURCES = \
diff --git a/proxy/src/gp_rpc_process.c b/proxy/src/gp_rpc_process.c
index aea3c51..f19a293 100644
--- a/proxy/src/gp_rpc_process.c
+++ b/proxy/src/gp_rpc_process.c
@@ -389,8 +389,3 @@ int gp_store_cred(gp_exec_std_args)
 {
     return 0;
 }
-
-int gp_wrap_size_limit(gp_exec_std_args)
-{
-    return 0;
-}
diff --git a/proxy/src/gp_rpc_wrap_size_limit.c b/proxy/src/gp_rpc_wrap_size_limit.c
new file mode 100644
index 0000000..90f989d
--- /dev/null
+++ b/proxy/src/gp_rpc_wrap_size_limit.c
@@ -0,0 +1,82 @@
+/*
+   GSS-PROXY
+
+   Copyright (C) 2011 Red Hat, Inc.
+   Copyright (C) 2011 Simo Sorce <simo.sorce@redhat.com>
+   Copyright (C) 2012 Guenther Deschner <guenther.deschner@redhat.com>
+
+   Permission is hereby granted, free of charge, to any person obtaining a
+   copy of this software and associated documentation files (the "Software"),
+   to deal in the Software without restriction, including without limitation
+   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+   and/or sell copies of the Software, and to permit persons to whom the
+   Software is furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+   DEALINGS IN THE SOFTWARE.
+*/
+
+#include "gp_rpc_process.h"
+#include <gssapi/gssapi.h>
+
+int gp_wrap_size_limit(struct gssproxy_ctx *gpctx,
+                       struct gp_service *gpsvc,
+                       union gp_rpc_arg *arg,
+                       union gp_rpc_res *res)
+{
+    gss_ctx_id_t context_handle = GSS_C_NO_CONTEXT;
+    struct gssx_arg_wrap_size_limit *wsla;
+    struct gssx_res_wrap_size_limit *wslr;
+    uint32_t ret_maj;
+    uint32_t ret_min;
+    int ret;
+    int exp_ctx_type;
+    OM_uint32 max_size;
+
+    wsla = &arg->wrap_size_limit;
+    wslr = &res->wrap_size_limit;
+
+    exp_ctx_type = gp_get_exported_context_type(&wsla->call_ctx);
+    if (exp_ctx_type == -1) {
+        ret_maj = GSS_S_FAILURE;
+        ret_min = EINVAL;
+        goto done;
+    }
+
+    ret_maj = gp_import_gssx_to_ctx_id(&ret_min, 0,
+                                       &wsla->context_handle,
+                                       &context_handle);
+    if (ret_maj) {
+        goto done;
+    }
+
+    ret_maj = gss_wrap_size_limit(&ret_min,
+                                  context_handle,
+                                  wsla->conf_req,
+                                  wsla->qop_state,
+                                  wsla->req_output_size,
+                                  &max_size);
+    if (ret_maj) {
+        goto done;
+    }
+
+    wslr->max_input_size = max_size;
+
+    ret_maj = GSS_S_COMPLETE;
+    ret_min = 0;
+
+done:
+    ret = gp_conv_status_to_gssx(&wsla->call_ctx,
+                                 ret_maj, ret_min,
+                                 GSS_C_NO_OID,
+                                 &wslr->status);
+    return ret;
+}