Implement privacy/integrity mechglue wrappers

1 files changed, 346 insertions, 0 deletions

diff --git a/proxy/src/mechglue/gpp_priv_integ.c b/proxy/src/mechglue/gpp_priv_integ.c
new file mode 100644
index 0000000..a27dae4
--- /dev/null
+++ b/proxy/src/mechglue/gpp_priv_integ.c
@@ -0,0 +1,346 @@
+/*
+   GSS-PROXY
+
+   Copyright (C) 2012 Red Hat, Inc.
+   Copyright (C) 2012 Simo Sorce <simo.sorce@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 "gss_plugin.h"
+
+OM_uint32 gssi_wrap(OM_uint32 *minor_status,
+                    gss_ctx_id_t context_handle,
+                    int conf_req_flag,
+                    gss_qop_t qop_req,
+                    gss_buffer_t input_message_buffer,
+                    int *conf_state,
+                    gss_buffer_t output_message_buffer)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_wrap(minor_status, ctx_handle->local,
+                    conf_req_flag, qop_req,
+                    input_message_buffer, conf_state,
+                    output_message_buffer);
+}
+
+OM_uint32 gssi_wrap_size_limit(OM_uint32 *minor_status,
+                               gss_ctx_id_t context_handle,
+                               int conf_req_flag,
+                               gss_qop_t qop_req,
+                               OM_uint32 req_output_size,
+                               OM_uint32 *max_input_size)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_wrap_size_limit(minor_status, ctx_handle->local,
+                               conf_req_flag, qop_req,
+                               req_output_size, max_input_size);
+}
+
+OM_uint32 gssi_wrap_iov(OM_uint32 *minor_status,
+                        gss_ctx_id_t context_handle,
+                        int conf_req_flag,
+                        gss_qop_t qop_req,
+                        int *conf_state,
+                        gss_iov_buffer_desc *iov,
+                        int iov_count)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_wrap_iov(minor_status, ctx_handle->local,
+                        conf_req_flag, qop_req, conf_state,
+                        iov, iov_count);
+}
+
+OM_uint32 gssi_wrap_iov_length(OM_uint32 *minor_status,
+                               gss_ctx_id_t context_handle,
+                               int conf_req_flag,
+                               gss_qop_t qop_req,
+                               int *conf_state,
+                               gss_iov_buffer_desc *iov,
+                               int iov_count)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_wrap_iov_length(minor_status, ctx_handle->local,
+                               conf_req_flag, qop_req, conf_state,
+                               iov, iov_count);
+}
+
+OM_uint32 gssi_wrap_aead(OM_uint32 *minor_status,
+	                 gss_ctx_id_t context_handle,
+	                 int conf_req_flag,
+	                 gss_qop_t qop_req,
+	                 gss_buffer_t input_assoc_buffer,
+	                 gss_buffer_t input_payload_buffer,
+	                 int *conf_state,
+	                 gss_buffer_t output_message_buffer)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_wrap_aead(minor_status, ctx_handle->local,
+                         conf_req_flag, qop_req,
+                         input_assoc_buffer, input_payload_buffer,
+                         conf_state, output_message_buffer);
+}
+
+OM_uint32 gssi_unwrap(OM_uint32 *minor_status,
+                      gss_ctx_id_t context_handle,
+                      gss_buffer_t input_message_buffer,
+                      gss_buffer_t output_message_buffer,
+                      int *conf_state,
+                      gss_qop_t *qop_state)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_unwrap(minor_status, ctx_handle->local,
+                      input_message_buffer, output_message_buffer,
+                      conf_state, qop_state);
+}
+
+OM_uint32 gssi_unwrap_iov(OM_uint32 *minor_status,
+                          gss_ctx_id_t context_handle,
+                          int *conf_state,
+                          gss_qop_t *qop_state,
+                          gss_iov_buffer_desc *iov,
+                          int iov_count)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_unwrap_iov(minor_status, ctx_handle->local,
+                          conf_state, qop_state, iov, iov_count);
+}
+
+OM_uint32 gssi_unwrap_aead(OM_uint32 *minor_status,
+                           gss_ctx_id_t context_handle,
+                           gss_buffer_t input_message_buffer,
+                           gss_buffer_t input_assoc_buffer,
+                           gss_buffer_t output_payload_buffer,
+                           int *conf_state,
+                           gss_qop_t *qop_state)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_unwrap_aead(minor_status, ctx_handle->local,
+                           input_message_buffer, input_assoc_buffer,
+                           output_payload_buffer,
+                           conf_state, qop_state);
+}
+
+OM_uint32 gssi_get_mic(OM_uint32 *minor_status,
+                       gss_ctx_id_t context_handle,
+                       gss_qop_t qop_req,
+                       gss_buffer_t message_buffer,
+                       gss_buffer_t message_token)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_get_mic(minor_status,
+                       ctx_handle->local,
+                       qop_req,
+                       message_buffer,
+                       message_token);
+}
+
+OM_uint32 gssi_verify_mic(OM_uint32 *minor_status,
+                          gss_ctx_id_t context_handle,
+                          gss_buffer_t message_buffer,
+                          gss_buffer_t message_token,
+                          gss_qop_t *qop_state)
+{
+    struct gpp_context_handle *ctx_handle;
+    OM_uint32 maj, min;
+
+    ctx_handle = (struct gpp_context_handle *)context_handle;
+    if (!ctx_handle) {
+        return GSS_S_CALL_INACCESSIBLE_READ;
+    }
+
+    /* for now we do encryption only locally and only for specific known
+     * mechanisms for which we can export/import the context */
+    if (ctx_handle->remote && !ctx_handle->local) {
+        maj = gpp_remote_to_local_ctx(&min, &ctx_handle->remote,
+                                            &ctx_handle->local);
+        if (maj != GSS_S_COMPLETE) {
+            *minor_status = gpp_map_error(min);
+            return maj;
+        }
+    }
+
+    return gss_verify_mic(minor_status,
+                          ctx_handle->local,
+                          message_buffer,
+                          message_token,
+                          qop_state);
+}