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// Copyright 2022 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.
// Internal socket tools shared between Windows and POSIX implementations.
#ifndef QUICHE_QUIC_CORE_IO_SOCKET_INTERNAL_H_
#define QUICHE_QUIC_CORE_IO_SOCKET_INTERNAL_H_
#include "absl/status/status.h"
#include "absl/status/statusor.h"
#include "quiche/quic/core/io/socket.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_logging.h"
namespace quic::socket_api {
inline int ToPlatformSocketType(SocketProtocol protocol) {
switch (protocol) {
case SocketProtocol::kUdp:
return SOCK_DGRAM;
case SocketProtocol::kTcp:
return SOCK_STREAM;
case SocketProtocol::kRawIp:
return SOCK_RAW;
}
QUICHE_NOTREACHED();
return -1;
}
inline int ToPlatformProtocol(SocketProtocol protocol) {
switch (protocol) {
case SocketProtocol::kUdp:
return IPPROTO_UDP;
case SocketProtocol::kTcp:
return IPPROTO_TCP;
case SocketProtocol::kRawIp:
return IPPROTO_RAW;
}
QUICHE_NOTREACHED();
return -1;
}
// A wrapper around QuicSocketAddress(sockaddr_storage) constructor that
// validates the supplied address.
inline absl::StatusOr<QuicSocketAddress> ValidateAndConvertAddress(
const sockaddr_storage& addr, socklen_t addr_len) {
if (addr.ss_family != AF_INET && addr.ss_family != AF_INET6) {
QUICHE_DVLOG(1) << "Socket did not have recognized address family: "
<< addr.ss_family;
return absl::UnimplementedError("Unrecognized address family.");
}
if ((addr.ss_family == AF_INET && addr_len != sizeof(sockaddr_in)) ||
(addr.ss_family == AF_INET6 && addr_len != sizeof(sockaddr_in6))) {
QUICHE_DVLOG(1) << "Socket did not have expected address size ("
<< (addr.ss_family == AF_INET ? sizeof(sockaddr_in)
: sizeof(sockaddr_in6))
<< "), had: " << addr_len;
return absl::UnimplementedError("Unhandled address size.");
}
return QuicSocketAddress(addr);
}
inline socklen_t GetAddrlen(IpAddressFamily family) {
switch (family) {
case IpAddressFamily::IP_V4:
return sizeof(sockaddr_in);
case IpAddressFamily::IP_V6:
return sizeof(sockaddr_in6);
default:
QUICHE_NOTREACHED();
return 0;
}
}
} // namespace quic::socket_api
#endif // QUICHE_QUIC_CORE_IO_SOCKET_INTERNAL_H_