blob: c894c23711449bf762e8d4078b7e721a9734ceb1 [file] [log] [blame] [edit]
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromecast/metrics/metrics_util.h"
#include "base/logging.h"
namespace chromecast {
uint32_t GetIPAddressFragmentForLogging(const net::IPAddressBytes& sender_ip) {
// Check if address is valid IPv4 or IPv6 byte array. If not then fill in
// with zeros as a default value.
if (sender_ip.size() != net::IPAddress::kIPv4AddressSize &&
sender_ip.size() != net::IPAddress::kIPv6AddressSize) {
DVLOG(1) << "Sender IP is not IPv4 or IPv6; zeroing out sender fragment.";
return 0;
}
// Grab the last 2 bytes of sender IP address in network order and store as
// packed 16-bit integer. The unused bits in the final packed value should
// be empty.
uint32_t packed_address = 0;
if (sender_ip.size() >= 2) {
int i = sender_ip.size() - 1;
packed_address |= (sender_ip[i--]);
packed_address |= (sender_ip[i--] << 8);
}
return packed_address;
}
} // namespace chromecast