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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 nsNSSIOLayer_h
#define nsNSSIOLayer_h
#include "mozilla/Assertions.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/TimeStamp.h"
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "nsIProxyInfo.h"
#include "nsITLSSocketControl.h"
#include "nsITlsHandshakeListener.h"
#include "nsNSSCertificate.h"
#include "nsTHashMap.h"
#include "nsTHashtable.h"
#include "sslt.h"
namespace mozilla {
class OriginAttributes;
} // namespace mozilla
using mozilla::OriginAttributes;
// Order matters for UpdateEchExtensioNStatus.
enum class EchExtensionStatus {
kNotPresent, // No ECH Extension was sent
kGREASE, // A GREASE ECH Extension was sent
kReal // A 'real' ECH Extension was sent
};
enum class PublicOrPrivate { Public, Private };
class nsSSLIOLayerHelpers : public nsIObserver {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIOBSERVER
explicit nsSSLIOLayerHelpers(PublicOrPrivate aPublicOrPrivate,
uint32_t aTlsFlags = 0);
static void GlobalInit();
static void GlobalCleanup();
nsresult Init();
static bool nsSSLIOLayerInitialized;
static PRDescIdentity nsSSLIOLayerIdentity;
static PRDescIdentity nsSSLPlaintextLayerIdentity;
static PRIOMethods nsSSLIOLayerMethods;
static PRIOMethods nsSSLPlaintextLayerMethods;
protected:
virtual ~nsSSLIOLayerHelpers();
private:
struct IntoleranceEntry {
uint16_t tolerant;
uint16_t intolerant;
PRErrorCode intoleranceReason;
void AssertInvariant() const {
MOZ_ASSERT(intolerant == 0 || tolerant < intolerant);
}
};
nsTHashMap<nsCStringHashKey, IntoleranceEntry> mTLSIntoleranceInfo;
// Sites that require insecure fallback to TLS 1.0, set by the pref
// security.tls.insecure_fallback_hosts, which is a comma-delimited
// list of domain names.
nsTHashtable<nsCStringHashKey> mInsecureFallbackSites;
public:
void rememberTolerantAtVersion(const nsACString& hostname, uint16_t port,
uint16_t tolerant);
bool fallbackLimitReached(const nsACString& hostname, uint16_t intolerant);
bool rememberIntolerantAtVersion(const nsACString& hostname, uint16_t port,
uint16_t intolerant, uint16_t minVersion,
PRErrorCode intoleranceReason);
void forgetIntolerance(const nsACString& hostname, uint16_t port);
void adjustForTLSIntolerance(const nsACString& hostname, uint16_t port,
/*in/out*/ SSLVersionRange& range);
PRErrorCode getIntoleranceReason(const nsACString& hostname, uint16_t port);
void clearStoredData();
void loadVersionFallbackLimit();
void setInsecureFallbackSites(const nsCString& str);
void initInsecureFallbackSites();
bool isPublic() const;
void removeInsecureFallbackSite(const nsACString& hostname, uint16_t port);
bool isInsecureFallbackSite(const nsACString& hostname);
uint16_t mVersionFallbackLimit;
private:
const PublicOrPrivate mPublicOrPrivate;
mozilla::Mutex mutex MOZ_UNANNOTATED;
uint32_t mTlsFlags;
};
namespace {
static mozilla::StaticRefPtr<nsSSLIOLayerHelpers> gPublicSSLIOLayerHelpers;
static mozilla::StaticRefPtr<nsSSLIOLayerHelpers> gPrivateSSLIOLayerHelpers;
} // namespace
already_AddRefed<nsSSLIOLayerHelpers> PublicSSLIOLayerHelpers();
already_AddRefed<nsSSLIOLayerHelpers> PrivateSSLIOLayerHelpers();
nsresult nsSSLIOLayerNewSocket(int32_t family, const char* host, int32_t port,
nsIProxyInfo* proxy,
const OriginAttributes& originAttributes,
PRFileDesc** fd,
nsITLSSocketControl** tlsSocketControl,
bool forSTARTTLS, uint32_t flags,
uint32_t tlsFlags);
nsresult nsSSLIOLayerAddToSocket(int32_t family, const char* host, int32_t port,
nsIProxyInfo* proxy,
const OriginAttributes& originAttributes,
PRFileDesc* fd,
nsITLSSocketControl** tlsSocketControl,
bool forSTARTTLS, uint32_t flags,
uint32_t tlsFlags);
SECStatus abridgedCertificatePass1Decode(const SECItem* input,
unsigned char* output,
size_t outputLen, size_t* usedLen);
SECStatus abridgedCertificateDecode(const SECItem* input, unsigned char* output,
size_t outputLen, size_t* usedLen);
SECStatus zlibCertificateDecode(const SECItem* input, unsigned char* output,
size_t outputLen, size_t* usedLen);
SECStatus brotliCertificateDecode(const SECItem* input, unsigned char* output,
size_t outputLen, size_t* usedLen);
SECStatus zstdCertificateDecode(const SECItem* input, unsigned char* output,
size_t outputLen, size_t* usedLen);
extern "C" {
using FindObjectsCallback = void (*)(uint8_t type, size_t id_len,
const uint8_t* id, size_t data_len,
const uint8_t* data, void* ctx);
void DoFindObjects(FindObjectsCallback cb, void* ctx);
using SignCallback = void (*)(size_t data_len, const uint8_t* data, void* ctx);
void DoSign(size_t cert_len, const uint8_t* cert, size_t data_len,
const uint8_t* data, size_t params_len, const uint8_t* params,
SignCallback cb, void* ctx);
}
#endif // nsNSSIOLayer_h
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