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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /security/certverifier/CertVerifier.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'security/certverifier/CertVerifier.h')
-rw-r--r-- | security/certverifier/CertVerifier.h | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/security/certverifier/CertVerifier.h b/security/certverifier/CertVerifier.h new file mode 100644 index 0000000000..ddf42108ac --- /dev/null +++ b/security/certverifier/CertVerifier.h @@ -0,0 +1,262 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef CertVerifier_h +#define CertVerifier_h + +#include "CTPolicyEnforcer.h" +#include "CTVerifyResult.h" +#include "EnterpriseRoots.h" +#include "OCSPCache.h" +#include "RootCertificateTelemetryUtils.h" +#include "ScopedNSSTypes.h" +#include "mozilla/EnumSet.h" +#include "mozilla/Telemetry.h" +#include "mozilla/TimeStamp.h" +#include "mozilla/UniquePtr.h" +#include "nsString.h" +#include "mozpkix/pkixtypes.h" +#include "sslt.h" + +#if defined(_MSC_VER) +# pragma warning(push) +// Silence "RootingAPI.h(718): warning C4324: 'js::DispatchWrapper<T>': +// structure was padded due to alignment specifier with [ T=void * ]" +# pragma warning(disable : 4324) +#endif /* defined(_MSC_VER) */ +#include "mozilla/BasePrincipal.h" +#if defined(_MSC_VER) +# pragma warning(pop) /* popping the pragma in this file */ +#endif /* defined(_MSC_VER) */ + +namespace mozilla { +namespace ct { + +// Including the headers of the classes below would bring along all of their +// dependent headers and force us to export them in moz.build. +// Just forward-declare the classes here instead. +class MultiLogCTVerifier; +class CTDiversityPolicy; + +} // namespace ct +} // namespace mozilla + +namespace mozilla { +namespace psm { + +typedef mozilla::pkix::Result Result; + +enum class EVStatus : uint8_t { + NotEV = 0, + EV = 1, +}; + +// These values correspond to the CERT_CHAIN_KEY_SIZE_STATUS telemetry. +enum class KeySizeStatus { + NeverChecked = 0, + LargeMinimumSucceeded = 1, + CompatibilityRisk = 2, + AlreadyBad = 3, +}; + +enum class CRLiteMode { + Disabled = 0, + TelemetryOnly = 1, + Enforce = 2, + ConfirmRevocations = 3, +}; + +enum class NetscapeStepUpPolicy : uint32_t; + +// Describes the source of the associated issuer. +enum class IssuerSource { + TLSHandshake, // included by the peer in the TLS handshake + PreloadedIntermediates, // a preloaded intermediate (via remote settings) + ThirdPartyCertificates, // a third-party certificate gleaned from the OS + NSSCertDB, // a certificate found in the profile's NSS certificate DB + BuiltInRootsModule, // a root from the built-in roots module +}; + +using IssuerSources = EnumSet<IssuerSource>; + +class PinningTelemetryInfo { + public: + PinningTelemetryInfo() + : certPinningResultBucket(0), rootBucket(ROOT_CERTIFICATE_UNKNOWN) { + Reset(); + } + + // Should we accumulate pinning telemetry for the result? + bool accumulateResult; + Maybe<Telemetry::HistogramID> certPinningResultHistogram; + int32_t certPinningResultBucket; + // Should we accumulate telemetry for the root? + bool accumulateForRoot; + int32_t rootBucket; + + void Reset() { + accumulateForRoot = false; + accumulateResult = false; + } +}; + +class CertificateTransparencyInfo { + public: + CertificateTransparencyInfo() + : enabled(false), + policyCompliance(mozilla::ct::CTPolicyCompliance::Unknown) { + Reset(); + } + + // Was CT enabled? + bool enabled; + // Verification result of the processed SCTs. + mozilla::ct::CTVerifyResult verifyResult; + // Connection compliance to the CT Policy. + mozilla::ct::CTPolicyCompliance policyCompliance; + + void Reset(); +}; + +class DelegatedCredentialInfo { + public: + DelegatedCredentialInfo() : scheme(ssl_sig_none), authKeyBits(0) {} + DelegatedCredentialInfo(SSLSignatureScheme scheme, uint32_t authKeyBits) + : scheme(scheme), authKeyBits(authKeyBits) {} + + // The signature scheme to be used in CertVerify. This tells us + // whether to interpret |authKeyBits| in an RSA or ECDSA context. + SSLSignatureScheme scheme; + + // The size of the key, in bits. + uint32_t authKeyBits; +}; + +class NSSCertDBTrustDomain; + +class CertVerifier { + public: + typedef unsigned int Flags; + // XXX: FLAG_LOCAL_ONLY is ignored in the classic verification case + static const Flags FLAG_LOCAL_ONLY; + // Don't perform fallback DV validation on EV validation failure. + static const Flags FLAG_MUST_BE_EV; + // TLS feature request_status should be ignored + static const Flags FLAG_TLS_IGNORE_STATUS_REQUEST; + + // These values correspond to the SSL_OCSP_STAPLING telemetry. + enum OCSPStaplingStatus { + OCSP_STAPLING_NEVER_CHECKED = 0, + OCSP_STAPLING_GOOD = 1, + OCSP_STAPLING_NONE = 2, + OCSP_STAPLING_EXPIRED = 3, + OCSP_STAPLING_INVALID = 4, + }; + + // *evOidPolicy == SEC_OID_UNKNOWN means the cert is NOT EV + // Only one usage per verification is supported. + mozilla::pkix::Result VerifyCert( + const nsTArray<uint8_t>& certBytes, SECCertificateUsage usage, + mozilla::pkix::Time time, void* pinArg, const char* hostname, + /*out*/ nsTArray<nsTArray<uint8_t>>& builtChain, Flags flags = 0, + /*optional in*/ + const Maybe<nsTArray<nsTArray<uint8_t>>>& extraCertificates = Nothing(), + /*optional in*/ const Maybe<nsTArray<uint8_t>>& stapledOCSPResponseArg = + Nothing(), + /*optional in*/ const Maybe<nsTArray<uint8_t>>& sctsFromTLS = Nothing(), + /*optional in*/ const OriginAttributes& originAttributes = + OriginAttributes(), + /*optional out*/ EVStatus* evStatus = nullptr, + /*optional out*/ OCSPStaplingStatus* ocspStaplingStatus = nullptr, + /*optional out*/ KeySizeStatus* keySizeStatus = nullptr, + /*optional out*/ PinningTelemetryInfo* pinningTelemetryInfo = nullptr, + /*optional out*/ CertificateTransparencyInfo* ctInfo = nullptr, + /*optional out*/ bool* isBuiltChainRootBuiltInRoot = nullptr, + /*optional out*/ bool* madeOCSPRequests = nullptr, + /*optional out*/ IssuerSources* = nullptr); + + mozilla::pkix::Result VerifySSLServerCert( + const nsTArray<uint8_t>& peerCert, mozilla::pkix::Time time, void* pinarg, + const nsACString& hostname, + /*out*/ nsTArray<nsTArray<uint8_t>>& builtChain, + /*optional*/ Flags flags = 0, + /*optional*/ const Maybe<nsTArray<nsTArray<uint8_t>>>& extraCertificates = + Nothing(), + /*optional*/ const Maybe<nsTArray<uint8_t>>& stapledOCSPResponse = + Nothing(), + /*optional*/ const Maybe<nsTArray<uint8_t>>& sctsFromTLS = Nothing(), + /*optional*/ const Maybe<DelegatedCredentialInfo>& dcInfo = Nothing(), + /*optional*/ const OriginAttributes& originAttributes = + OriginAttributes(), + /*optional out*/ EVStatus* evStatus = nullptr, + /*optional out*/ OCSPStaplingStatus* ocspStaplingStatus = nullptr, + /*optional out*/ KeySizeStatus* keySizeStatus = nullptr, + /*optional out*/ PinningTelemetryInfo* pinningTelemetryInfo = nullptr, + /*optional out*/ CertificateTransparencyInfo* ctInfo = nullptr, + /*optional out*/ bool* isBuiltChainRootBuiltInRoot = nullptr, + /*optional out*/ bool* madeOCSPRequests = nullptr, + /*optional out*/ IssuerSources* = nullptr); + + enum OcspDownloadConfig { ocspOff = 0, ocspOn = 1, ocspEVOnly = 2 }; + enum OcspStrictConfig { ocspRelaxed = 0, ocspStrict }; + + enum class CertificateTransparencyMode { + Disabled = 0, + TelemetryOnly = 1, + }; + + CertVerifier(OcspDownloadConfig odc, OcspStrictConfig osc, + mozilla::TimeDuration ocspTimeoutSoft, + mozilla::TimeDuration ocspTimeoutHard, + uint32_t certShortLifetimeInDays, + NetscapeStepUpPolicy netscapeStepUpPolicy, + CertificateTransparencyMode ctMode, CRLiteMode crliteMode, + const nsTArray<EnterpriseCert>& thirdPartyCerts); + ~CertVerifier(); + + void ClearOCSPCache() { mOCSPCache.Clear(); } + + const OcspDownloadConfig mOCSPDownloadConfig; + const bool mOCSPStrict; + const mozilla::TimeDuration mOCSPTimeoutSoft; + const mozilla::TimeDuration mOCSPTimeoutHard; + const uint32_t mCertShortLifetimeInDays; + const NetscapeStepUpPolicy mNetscapeStepUpPolicy; + const CertificateTransparencyMode mCTMode; + const CRLiteMode mCRLiteMode; + + private: + OCSPCache mOCSPCache; + // We keep a copy of the bytes of each third party root to own. + nsTArray<EnterpriseCert> mThirdPartyCerts; + // This is a reusable, precomputed list of Inputs corresponding to each root + // in mThirdPartyCerts that wasn't too long to make an Input out of. + nsTArray<mozilla::pkix::Input> mThirdPartyRootInputs; + // Similarly, but with intermediates. + nsTArray<mozilla::pkix::Input> mThirdPartyIntermediateInputs; + + // We only have a forward declarations of these classes (see above) + // so we must allocate dynamically. + UniquePtr<mozilla::ct::MultiLogCTVerifier> mCTVerifier; + UniquePtr<mozilla::ct::CTDiversityPolicy> mCTDiversityPolicy; + + void LoadKnownCTLogs(); + mozilla::pkix::Result VerifyCertificateTransparencyPolicy( + NSSCertDBTrustDomain& trustDomain, + const nsTArray<nsTArray<uint8_t>>& builtChain, + mozilla::pkix::Input sctsFromTLS, mozilla::pkix::Time time, + /*optional out*/ CertificateTransparencyInfo* ctInfo); +}; + +mozilla::pkix::Result IsCertBuiltInRoot(pkix::Input certInput, bool& result); +mozilla::pkix::Result CertListContainsExpectedKeys(const CERTCertList* certList, + const char* hostname, + mozilla::pkix::Time time); + +} // namespace psm +} // namespace mozilla + +#endif // CertVerifier_h |