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125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_CERT_INTERNAL_GENERAL_NAMES_H_
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#define NET_CERT_INTERNAL_GENERAL_NAMES_H_
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#include <memory>
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#include <vector>
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#include "base/strings/string_piece_forward.h"
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#include "net/base/ip_address.h"
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#include "net/base/net_export.h"
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#include "net/cert/internal/cert_error_id.h"
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namespace net {
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class CertErrors;
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NET_EXPORT extern const CertErrorId kFailedParsingGeneralName;
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namespace der {
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class Input;
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} // namespace der
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// Bitfield values for the GeneralName types defined in RFC 5280. The ordering
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// and exact values are not important, but match the order from the RFC for
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// convenience.
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enum GeneralNameTypes {
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GENERAL_NAME_NONE = 0,
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GENERAL_NAME_OTHER_NAME = 1 << 0,
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GENERAL_NAME_RFC822_NAME = 1 << 1,
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GENERAL_NAME_DNS_NAME = 1 << 2,
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GENERAL_NAME_X400_ADDRESS = 1 << 3,
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GENERAL_NAME_DIRECTORY_NAME = 1 << 4,
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GENERAL_NAME_EDI_PARTY_NAME = 1 << 5,
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GENERAL_NAME_UNIFORM_RESOURCE_IDENTIFIER = 1 << 6,
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GENERAL_NAME_IP_ADDRESS = 1 << 7,
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GENERAL_NAME_REGISTERED_ID = 1 << 8,
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GENERAL_NAME_ALL_TYPES = (1 << 9) - 1,
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};
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// Represents a GeneralNames structure. When processing GeneralNames, it is
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// often necessary to know which types of names were present, and to check
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// all the names of a certain type. Therefore, a bitfield of all the name
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// types is kept, and the names are split into members for each type.
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struct NET_EXPORT GeneralNames {
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// Controls parsing of iPAddress names in ParseGeneralName.
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// IP_ADDRESS_ONLY parses the iPAddress names as a 4 or 16 byte IP address.
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// IP_ADDRESS_AND_NETMASK parses the iPAddress names as 8 or 32 bytes
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// containing an IP address followed by a netmask.
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enum ParseGeneralNameIPAddressType {
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IP_ADDRESS_ONLY,
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IP_ADDRESS_AND_NETMASK,
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};
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GeneralNames();
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~GeneralNames();
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// Create a GeneralNames object representing the DER-encoded
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// |general_names_tlv|. The returned object may reference data from
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// |general_names_tlv|, so is only valid as long as |general_names_tlv| is.
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// Returns nullptr on failure, and may fill |errors| with
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// additional information. |errors| must be non-null.
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static std::unique_ptr<GeneralNames> Create(
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const der::Input& general_names_tlv,
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CertErrors* errors);
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// As above, but takes the GeneralNames sequence value, without the tag and
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// length.
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static std::unique_ptr<GeneralNames> CreateFromValue(
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const der::Input& general_names_value,
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CertErrors* errors);
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// DER-encoded OtherName values.
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std::vector<der::Input> other_names;
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// ASCII rfc822names.
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std::vector<base::StringPiece> rfc822_names;
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// ASCII hostnames.
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std::vector<base::StringPiece> dns_names;
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// DER-encoded ORAddress values.
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std::vector<der::Input> x400_addresses;
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// DER-encoded Name values (not including the Sequence tag).
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std::vector<der::Input> directory_names;
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// DER-encoded EDIPartyName values.
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std::vector<der::Input> edi_party_names;
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// ASCII URIs.
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std::vector<base::StringPiece> uniform_resource_identifiers;
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// iPAddresses as sequences of octets in network byte order. This will be
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// populated if the GeneralNames represents a Subject Alternative Name.
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std::vector<IPAddress> ip_addresses;
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// iPAddress ranges, as <IP, prefix length> pairs. This will be populated
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// if the GeneralNames represents a Name Constraints.
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std::vector<std::pair<IPAddress, unsigned>> ip_address_ranges;
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// DER-encoded OBJECT IDENTIFIERs.
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std::vector<der::Input> registered_ids;
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// Which name types were present, as a bitfield of GeneralNameTypes.
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int present_name_types = GENERAL_NAME_NONE;
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};
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// Parses a GeneralName value and adds it to |subtrees|.
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// |ip_address_type| specifies how to parse iPAddress names.
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// Returns false on failure, and may fill |errors| with additional information.
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// |errors| must be non-null.
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// TODO(mattm): should this be a method on GeneralNames?
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WARN_UNUSED_RESULT bool ParseGeneralName(
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const der::Input& input,
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GeneralNames::ParseGeneralNameIPAddressType ip_address_type,
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GeneralNames* subtrees,
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CertErrors* errors);
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} // namespace net
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#endif // NET_CERT_INTERNAL_GENERAL_NAMES_H_
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