Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/server/proxy/pf_utils.h

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+/**
+ * FreeRDP: A Remote Desktop Protocol Implementation
+ * FreeRDP Proxy Server
+ *
+ * Copyright 2021 Armin Novak <armin.novak@thincast.com>
+ * Copyright 2021 Thincast Technologies GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FREERDP_SERVER_PROXY_PFUTILS_H
+#define FREERDP_SERVER_PROXY_PFUTILS_H
+
+#include <freerdp/server/proxy/proxy_config.h>
+#include <freerdp/server/proxy/proxy_context.h>
+
+/**
+ * @brief pf_utils_channel_is_passthrough Checks of a channel identified by 'name'
+ *          should be handled as passthrough.
+ *
+ * @param config The proxy configuration to check against. Must NOT be nullptr.
+ * @param name The name of the channel. Must NOT be nullptr.
+ * @return -1 if the channel is not handled, 0 if the channel should be ignored,
+ *         1 if the channel should be passed, 2 the channel will be intercepted
+ *         e.g. proxy client and server are termination points and data passed
+ *         between.
+ */
+WINPR_ATTR_NODISCARD pf_utils_channel_mode pf_utils_get_channel_mode(const proxyConfig* config,
+                                                                     const char* name);
+WINPR_ATTR_NODISCARD const char* pf_utils_channel_mode_string(pf_utils_channel_mode mode);
+
+WINPR_ATTR_NODISCARD BOOL pf_utils_is_passthrough(const proxyConfig* config);
+
+#endif /* FREERDP_SERVER_PROXY_PFUTILS_H */