1/*
2 * Copyright (c) Facebook, Inc. and its affiliates.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#pragma once
18
19#include <exception>
20#include <string>
21#include <utility>
22
23#include <folly/CPortability.h>
24#include <folly/detail/IPAddress.h>
25
26namespace folly {
27
28/**
29 * Error codes for non-throwing interface of IPAddress family of functions.
30 */
31enum class IPAddressFormatError { INVALID_IP, UNSUPPORTED_ADDR_FAMILY };
32
33/**
34 * Wraps error from parsing IP/MASK string
35 */
36enum class CIDRNetworkError {
37 INVALID_DEFAULT_CIDR,
38 INVALID_IP_SLASH_CIDR,
39 INVALID_IP,
40 INVALID_CIDR,
41 CIDR_MISMATCH,
42};
43
44/**
45 * Exception for invalid IP addresses.
46 */
47class FOLLY_EXPORT IPAddressFormatException : public std::exception {
48 public:
49 explicit IPAddressFormatException(std::string msg) noexcept
50 : msg_(std::move(msg)) {}
51 IPAddressFormatException(const IPAddressFormatException&) = default;
52 IPAddressFormatException(IPAddressFormatException&&) = default;
53 IPAddressFormatException& operator=(const IPAddressFormatException&) =
54 default;
55 IPAddressFormatException& operator=(IPAddressFormatException&&) = default;
56
57 ~IPAddressFormatException() noexcept override {}
58 const char* what() const noexcept override {
59 return msg_.c_str();
60 }
61
62 private:
63 std::string msg_;
64};
65
66class FOLLY_EXPORT InvalidAddressFamilyException
67 : public IPAddressFormatException {
68 public:
69 explicit InvalidAddressFamilyException(std::string msg) noexcept
70 : IPAddressFormatException(std::move(msg)) {}
71 explicit InvalidAddressFamilyException(sa_family_t family) noexcept
72 : InvalidAddressFamilyException(
73 "Address family " + detail::familyNameStr(family) +
74 " is not AF_INET or AF_INET6") {}
75 InvalidAddressFamilyException(const InvalidAddressFamilyException&) = default;
76 InvalidAddressFamilyException(InvalidAddressFamilyException&&) = default;
77 InvalidAddressFamilyException& operator=(
78 const InvalidAddressFamilyException&) = default;
79 InvalidAddressFamilyException& operator=(InvalidAddressFamilyException&&) =
80 default;
81};
82
83} // namespace folly
84