Initial checkin of gRPC to third_party/

third_party/grpc/src/core/tsi/transport_security.h

Index: third_party/grpc/src/core/tsi/transport_security.h
diff --git a/third_party/grpc/src/core/tsi/transport_security.h b/third_party/grpc/src/core/tsi/transport_security.h
new file mode 100644
index 0000000000000000000000000000000000000000..4077737473ac5b34468fa75e109bb94d4ad2b691
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+++ b/third_party/grpc/src/core/tsi/transport_security.h
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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS 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 THE COPYRIGHT
+ * OWNER 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.
+ *
+ */
+
+#ifndef GRPC_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H
+#define GRPC_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H
+
+#include "src/core/tsi/transport_security_interface.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int tsi_tracing_enabled;
+
+/* Base for tsi_frame_protector implementations.
+   See transport_security_interface.h for documentation. */
+typedef struct {
+  tsi_result (*protect)(tsi_frame_protector *self,
+                        const unsigned char *unprotected_bytes,
+                        size_t *unprotected_bytes_size,
+                        unsigned char *protected_output_frames,
+                        size_t *protected_output_frames_size);
+  tsi_result (*protect_flush)(tsi_frame_protector *self,
+                              unsigned char *protected_output_frames,
+                              size_t *protected_output_frames_size,
+                              size_t *still_pending_size);
+  tsi_result (*unprotect)(tsi_frame_protector *self,
+                          const unsigned char *protected_frames_bytes,
+                          size_t *protected_frames_bytes_size,
+                          unsigned char *unprotected_bytes,
+                          size_t *unprotected_bytes_size);
+  void (*destroy)(tsi_frame_protector *self);
+} tsi_frame_protector_vtable;
+
+struct tsi_frame_protector {
+  const tsi_frame_protector_vtable *vtable;
+};
+
+/* Base for tsi_handshaker implementations.
+   See transport_security_interface.h for documentation. */
+typedef struct {
+  tsi_result (*get_bytes_to_send_to_peer)(tsi_handshaker *self,
+                                          unsigned char *bytes,
+                                          size_t *bytes_size);
+  tsi_result (*process_bytes_from_peer)(tsi_handshaker *self,
+                                        const unsigned char *bytes,
+                                        size_t *bytes_size);
+  tsi_result (*get_result)(tsi_handshaker *self);
+  tsi_result (*extract_peer)(tsi_handshaker *self, tsi_peer *peer);
+  tsi_result (*create_frame_protector)(tsi_handshaker *self,
+                                       size_t *max_protected_frame_size,
+                                       tsi_frame_protector **protector);
+  void (*destroy)(tsi_handshaker *self);
+} tsi_handshaker_vtable;
+
+struct tsi_handshaker {
+  const tsi_handshaker_vtable *vtable;
+  int frame_protector_created;
+};
+
+/* Peer and property construction/destruction functions. */
+tsi_result tsi_construct_peer(size_t property_count, tsi_peer *peer);
+tsi_peer_property tsi_init_peer_property(void);
+void tsi_peer_property_destruct(tsi_peer_property *property);
+tsi_result tsi_construct_string_peer_property(const char *name,
+                                              const char *value,
+                                              size_t value_length,
+                                              tsi_peer_property *property);
+tsi_result tsi_construct_allocated_string_peer_property(
+    const char *name, size_t value_length, tsi_peer_property *property);
+tsi_result tsi_construct_string_peer_property_from_cstring(
+    const char *name, const char *value, tsi_peer_property *property);
+
+/* Utils. */
+char *tsi_strdup(const char *src); /* Sadly, no strdup in C89. */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GRPC_INTERNAL_CORE_TSI_TRANSPORT_SECURITY_H */