Move talk/session/media -> webrtc/pc

talk/session/media/externalhmac.cc

Index: talk/session/media/externalhmac.cc
diff --git a/talk/session/media/externalhmac.cc b/talk/session/media/externalhmac.cc
deleted file mode 100644
index dd991d484823b54db6ea9ec97692fc80f50382b6..0000000000000000000000000000000000000000
--- a/talk/session/media/externalhmac.cc
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * libjingle
- * Copyright 2014 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  1. Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *  2. 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.
- *  3. The name of the author may not be used to endorse or promote products
- *     derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
- */
-
-#if defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH)
-
-#include "talk/session/media/externalhmac.h"
-
-#include <stdlib.h>  // For malloc/free.
-
-extern "C" {
-#ifdef SRTP_RELATIVE_PATH
-#include "crypto_kernel.h"  // NOLINT
-#include "srtp.h"  // NOLINT
-#else
-#include "third_party/libsrtp/srtp/crypto/include/crypto_kernel.h"
-#include "third_party/libsrtp/srtp/include/srtp.h"
-#endif  // SRTP_RELATIVE_PATH
-}
-
-#include "webrtc/base/logging.h"
-
-// Begin test case 0 */
-static const uint8_t kExternalHmacTestCase0Key[20] = {
-  0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-  0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-  0x0b, 0x0b, 0x0b, 0x0b
-};
-
-static const uint8_t kExternalHmacTestCase0Data[8] = {
-  0x48, 0x69, 0x20, 0x54, 0x68, 0x65, 0x72, 0x65   // "Hi There"
-};
-
-static const uint8_t kExternalHmacFakeTag[10] = {
-  0xba, 0xdd, 0xba, 0xdd, 0xba, 0xdd, 0xba, 0xdd, 0xba, 0xdd
-};
-
-static const auth_test_case_t kExternalHmacTestCase0 = {
-  20,                                                    // Octets in key
-  const_cast<uint8_t*>(kExternalHmacTestCase0Key),   // Key
-  8,                                                     // Octets in data
-  const_cast<uint8_t*>(kExternalHmacTestCase0Data),  // Data
-  10,                                                    // Octets in tag
-  const_cast<uint8_t*>(kExternalHmacFakeTag),          // Tag
-  NULL                                                   // Pointer to next
-                                                         // testcase
-};
-
-static const char kExternalHmacDescription[] =
-    "external hmac sha-1 authentication";
-
-// auth_type_t external_hmac is the hmac metaobject
-
-static const auth_type_t external_hmac  = {
-  external_hmac_alloc,
-  external_hmac_dealloc,
-  (auth_init_func)    external_hmac_init,
-  (auth_compute_func) external_hmac_compute,
-  (auth_update_func)  external_hmac_update,
-  (auth_start_func)   external_hmac_start,
-  const_cast<char*>(kExternalHmacDescription),
-  0,     // Instance count.
-  const_cast<auth_test_case_t*>(&kExternalHmacTestCase0),
-  NULL,  // No debugging module.
-  EXTERNAL_HMAC_SHA1
-};
-
-
-err_status_t external_hmac_alloc(auth_t** a, int key_len, int out_len) {
-  uint8_t* pointer;
-
-  // Check key length - note that we don't support keys larger
-  // than 20 bytes yet
-  if (key_len > 20)
-    return err_status_bad_param;
-
-  // Check output length - should be less than 20 bytes/
-  if (out_len > 20)
-    return err_status_bad_param;
-
-  // Allocate memory for auth and hmac_ctx_t structures.
-  pointer = new uint8_t[(sizeof(ExternalHmacContext) + sizeof(auth_t))];
-  if (pointer == NULL)
-    return err_status_alloc_fail;
-
-  // Set pointers
-  *a = (auth_t *)pointer;
-  // |external_hmac| is const and libsrtp expects |type| to be non-const.
-  // const conversion is required. |external_hmac| is constant because we don't
-  // want to increase global count in Chrome.
-  (*a)->type = const_cast<auth_type_t*>(&external_hmac);
-  (*a)->state = pointer + sizeof(auth_t);
-  (*a)->out_len = out_len;
-  (*a)->key_len = key_len;
-  (*a)->prefix_len = 0;
-
-  return err_status_ok;
-}
-
-err_status_t external_hmac_dealloc(auth_t* a) {
-  // Zeroize entire state
-  memset((uint8_t *)a, 0, sizeof(ExternalHmacContext) + sizeof(auth_t));
-
-  // Free memory
-  delete[] a;
-
-  return err_status_ok;
-}
-
-err_status_t external_hmac_init(ExternalHmacContext* state,
-                                const uint8_t* key,
-                                int key_len) {
-  if (key_len > HMAC_KEY_LENGTH)
-    return err_status_bad_param;
-
-  memset(state->key, 0, key_len);
-  memcpy(state->key, key, key_len);
-  state->key_length = key_len;
-  return err_status_ok;
-}
-
-err_status_t external_hmac_start(ExternalHmacContext* state) {
-  return err_status_ok;
-}
-
-err_status_t external_hmac_update(ExternalHmacContext* state,
-                                  const uint8_t* message,
-                                  int msg_octets) {
-  return err_status_ok;
-}
-
-err_status_t external_hmac_compute(ExternalHmacContext* state,
-                                   const void* message,
-                                   int msg_octets,
-                                   int tag_len,
-                                   uint8_t* result) {
-  memcpy(result, kExternalHmacFakeTag, tag_len);
-  return err_status_ok;
-}
-
-err_status_t external_crypto_init() {
-  // |external_hmac| is const. const_cast is required as libsrtp expects
-  // non-const.
-  err_status_t status = crypto_kernel_replace_auth_type(
-      const_cast<auth_type_t*>(&external_hmac), EXTERNAL_HMAC_SHA1);
-  if (status) {
-    LOG(LS_ERROR) << "Error in replacing default auth module, error: "
-                  << status;
-    return err_status_fail;
-  }
-  return err_status_ok;
-}
-
-#endif  // defined(HAVE_SRTP) && defined(ENABLE_EXTERNAL_AUTH)