Remove path id from IV in QUIC encrytion algorithms.

net/quic/core/quic_framer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/core/quic_framer.h"
 
 #include <cstdint>
 #include <memory>
 
 #include "base/compiler_specific.h"
@@ skipping 1555 matching lines @@
 
 size_t QuicFramer::EncryptInPlace(EncryptionLevel level,
                                   QuicPathId path_id,
                                   QuicPacketNumber packet_number,
                                   size_t ad_len,
                                   size_t total_len,
                                   size_t buffer_len,
                                   char* buffer) {
   size_t output_length = 0;
   if (!encrypter_[level]->EncryptPacket(
-          quic_version_, path_id, packet_number,
+          quic_version_, packet_number,
           StringPiece(buffer, ad_len),                       // Associated data
           StringPiece(buffer + ad_len, total_len - ad_len),  // Plaintext
           buffer + ad_len,  // Destination buffer
           &output_length, buffer_len - ad_len)) {
     RaiseError(QUIC_ENCRYPTION_FAILURE);
     return 0;
   }
 
   return ad_len + output_length;
 }
 
 size_t QuicFramer::EncryptPayload(EncryptionLevel level,
-                                  QuicPathId path_id,
                                   QuicPacketNumber packet_number,
                                   const QuicPacket& packet,
                                   char* buffer,
                                   size_t buffer_len) {
   DCHECK(encrypter_[level].get() != nullptr);
 
   StringPiece associated_data = packet.AssociatedData(quic_version_);
   // Copy in the header, because the encrypter only populates the encrypted
   // plaintext content.
   const size_t ad_len = associated_data.length();
   memmove(buffer, associated_data.data(), ad_len);
   // Encrypt the plaintext into the buffer.
   size_t output_length = 0;
   if (!encrypter_[level]->EncryptPacket(
-          quic_version_, path_id, packet_number, associated_data,
+          quic_version_, packet_number, associated_data,
           packet.Plaintext(quic_version_), buffer + ad_len, &output_length,
           buffer_len - ad_len)) {
     RaiseError(QUIC_ENCRYPTION_FAILURE);
     return 0;
   }
 
   return ad_len + output_length;
 }
 
 size_t QuicFramer::GetMaxPlaintextSize(size_t ciphertext_size) {
@@ skipping 21 matching lines @@
                                 size_t* decrypted_length) {
   StringPiece encrypted = encrypted_reader->ReadRemainingPayload();
   DCHECK(decrypter_.get() != nullptr);
   StringPiece associated_data = GetAssociatedDataFromEncryptedPacket(
       quic_version_, packet, header.public_header.connection_id_length,
       header.public_header.version_flag, header.public_header.multipath_flag,
       header.public_header.nonce != nullptr,
       header.public_header.packet_number_length);
 
   bool success = decrypter_->DecryptPacket(
-      quic_version_, header.path_id, header.packet_number, associated_data,
-      encrypted, decrypted_buffer, decrypted_length, buffer_length);
+      quic_version_, header.packet_number, associated_data, encrypted,
+      decrypted_buffer, decrypted_length, buffer_length);
   if (success) {
     visitor_->OnDecryptedPacket(decrypter_level_);
   } else if (alternative_decrypter_.get() != nullptr) {
     if (header.public_header.nonce != nullptr) {
       DCHECK_EQ(perspective_, Perspective::IS_CLIENT);
       alternative_decrypter_->SetDiversificationNonce(
           *header.public_header.nonce);
     }
     bool try_alternative_decryption = true;
     if (alternative_decrypter_level_ == ENCRYPTION_INITIAL) {
       if (perspective_ == Perspective::IS_CLIENT) {
         if (header.public_header.nonce == nullptr) {
           // Can not use INITIAL decryption without a diversification nonce.
           try_alternative_decryption = false;
         }
       } else {
         DCHECK(header.public_header.nonce == nullptr);
       }
     }
 
     if (try_alternative_decryption) {
       success = alternative_decrypter_->DecryptPacket(
-          quic_version_, header.path_id, header.packet_number, associated_data,
-          encrypted, decrypted_buffer, decrypted_length, buffer_length);
+          quic_version_, header.packet_number, associated_data, encrypted,
+          decrypted_buffer, decrypted_length, buffer_length);
     }
     if (success) {
       visitor_->OnDecryptedPacket(alternative_decrypter_level_);
       if (alternative_decrypter_latch_) {
         // Switch to the alternative decrypter and latch so that we cannot
         // switch back.
         decrypter_ = std::move(alternative_decrypter_);
         decrypter_level_ = alternative_decrypter_level_;
         alternative_decrypter_level_ = ENCRYPTION_NONE;
       } else {
@@ skipping 526 matching lines @@
 
 bool QuicFramer::RaiseError(QuicErrorCode error) {
   QUIC_DLOG(INFO) << ENDPOINT << "Error: " << QuicErrorCodeToString(error)
                   << " detail: " << detailed_error_;
   set_error(error);
   visitor_->OnError(this);
   return false;
 }
 
 }  // namespace net