diff options
Diffstat (limited to 'security/nss/lib/ssl/ssl3ext.h')
| -rw-r--r-- | security/nss/lib/ssl/ssl3ext.h | 114 |
1 files changed, 54 insertions, 60 deletions
diff --git a/security/nss/lib/ssl/ssl3ext.h b/security/nss/lib/ssl/ssl3ext.h index d0f75a599..90407375a 100644 --- a/security/nss/lib/ssl/ssl3ext.h +++ b/security/nss/lib/ssl/ssl3ext.h @@ -9,38 +9,54 @@ #ifndef __ssl3ext_h_ #define __ssl3ext_h_ -#include "sslencode.h" - typedef enum { sni_nametype_hostname } SNINameType; typedef struct TLSExtensionDataStr TLSExtensionData; -/* Registerable callback function that either appends extension to buffer +/* registerable callback function that either appends extension to buffer * or returns length of data that it would have appended. */ -typedef SECStatus (*sslExtensionBuilderFunc)(const sslSocket *ss, - TLSExtensionData *xtnData, - sslBuffer *buf, PRBool *added); +typedef PRInt32 (*ssl3HelloExtensionSenderFunc)(const sslSocket *ss, + TLSExtensionData *xtnData, + PRBool append, + PRUint32 maxBytes); + +/* registerable callback function that handles a received extension, + * of the given type. + */ +typedef SECStatus (*ssl3ExtensionHandlerFunc)(const sslSocket *ss, + TLSExtensionData *xtnData, + PRUint16 ex_type, + SECItem *data); /* row in a table of hello extension senders */ typedef struct { PRInt32 ex_type; - sslExtensionBuilderFunc ex_sender; -} sslExtensionBuilder; + ssl3HelloExtensionSenderFunc ex_sender; +} ssl3HelloExtensionSender; + +/* row in a table of hello extension handlers */ +typedef struct { + PRInt32 ex_type; + ssl3ExtensionHandlerFunc ex_handler; +} ssl3ExtensionHandler; struct TLSExtensionDataStr { /* registered callbacks that send server hello extensions */ - sslExtensionBuilder serverHelloSenders[SSL_MAX_EXTENSIONS]; - sslExtensionBuilder encryptedExtensionsSenders[SSL_MAX_EXTENSIONS]; - sslExtensionBuilder certificateSenders[SSL_MAX_EXTENSIONS]; + ssl3HelloExtensionSender serverHelloSenders[SSL_MAX_EXTENSIONS]; + ssl3HelloExtensionSender encryptedExtensionsSenders[SSL_MAX_EXTENSIONS]; + ssl3HelloExtensionSender certificateSenders[SSL_MAX_EXTENSIONS]; - /* Keep track of the extensions that are advertised or negotiated. */ + /* Keep track of the extensions that are negotiated. */ PRUint16 numAdvertised; - PRUint16 *advertised; /* Allocated dynamically. */ PRUint16 numNegotiated; + PRUint16 advertised[SSL_MAX_EXTENSIONS]; PRUint16 negotiated[SSL_MAX_EXTENSIONS]; + /* Amount of padding we need to add. */ + PRUint16 paddingLen; + /* SessionTicket Extension related data. */ PRBool ticketTimestampVerified; PRBool emptySessionTicket; @@ -70,13 +86,10 @@ struct TLSExtensionDataStr { PRBool peerSupportsFfdheGroups; /* if the peer supports named ffdhe groups */ /* clientSigAndHash contains the contents of the signature_algorithms - * extension (if any) the other side supports. This is only valid for TLS - * 1.2 or later. In TLS 1.3, it is also used for CertificateRequest. */ - SSLSignatureScheme *sigSchemes; - unsigned int numSigSchemes; - - SECItem certReqContext; - CERTDistNames certReqAuthorities; + * extension (if any) from the client. This is only valid for TLS 1.2 + * or later. */ + SSLSignatureScheme *clientSigSchemes; + unsigned int numClientSigScheme; /* In a client: if the server supports Next Protocol Negotiation, then * this is the protocol that was negotiated. @@ -86,18 +99,9 @@ struct TLSExtensionDataStr { PRUint16 dtlsSRTPCipherSuite; /* 0 if not selected */ - unsigned int lastXtnOffset; /* Where to insert padding. 0 = end. */ - PRCList remoteKeyShares; /* The other side's public keys (TLS 1.3) */ - - /* The following are used by a TLS 1.3 server. */ - SECItem pskBinder; /* The binder for the first PSK. */ - unsigned int pskBindersLen; /* The length of the binders. */ - PRUint32 ticketAge; /* Used to accept early data. */ - SECItem cookie; /* HRR Cookie. */ - const sslNamedGroupDef *selectedGroup; /* For HRR. */ - /* The application token contains a value that was passed to the client via - * a session ticket, or the cookie in a HelloRetryRequest. */ - SECItem applicationToken; + SECItem pskBinder; /* The PSK binder for the first PSK (TLS 1.3) */ + unsigned long pskBinderPrefixLen; /* The length of the binder input. */ + PRCList remoteKeyShares; /* The other side's public keys (TLS 1.3) */ }; typedef struct TLSExtensionStr { @@ -106,44 +110,40 @@ typedef struct TLSExtensionStr { SECItem data; /* Pointers into the handshake data. */ } TLSExtension; -typedef struct sslCustomExtensionHooks { - PRCList link; - PRUint16 type; - SSLExtensionWriter writer; - void *writerArg; - SSLExtensionHandler handler; - void *handlerArg; -} sslCustomExtensionHooks; - SECStatus ssl3_HandleExtensions(sslSocket *ss, PRUint8 **b, PRUint32 *length, - SSLHandshakeType handshakeMessage); + SSL3HandshakeType handshakeMessage); SECStatus ssl3_ParseExtensions(sslSocket *ss, PRUint8 **b, PRUint32 *length); SECStatus ssl3_HandleParsedExtensions(sslSocket *ss, - SSLHandshakeType handshakeMessage); + SSL3HandshakeType handshakeMessage); TLSExtension *ssl3_FindExtension(sslSocket *ss, SSLExtensionType extension_type); void ssl3_DestroyRemoteExtensions(PRCList *list); -void ssl3_InitExtensionData(TLSExtensionData *xtnData, const sslSocket *ss); -void ssl3_DestroyExtensionData(TLSExtensionData *xtnData); -void ssl3_ResetExtensionData(TLSExtensionData *xtnData, const sslSocket *ss); +void ssl3_InitExtensionData(TLSExtensionData *xtnData); +void ssl3_ResetExtensionData(TLSExtensionData *xtnData); PRBool ssl3_ExtensionNegotiated(const sslSocket *ss, PRUint16 ex_type); -PRBool ssl3_ExtensionAdvertised(const sslSocket *ss, PRUint16 ex_type); +PRBool ssl3_ClientExtensionAdvertised(const sslSocket *ss, PRUint16 ex_type); SECStatus ssl3_RegisterExtensionSender(const sslSocket *ss, TLSExtensionData *xtnData, PRUint16 ex_type, - sslExtensionBuilderFunc cb); -SECStatus ssl_ConstructExtensions(sslSocket *ss, sslBuffer *buf, - SSLHandshakeType message); -SECStatus ssl_SendEmptyExtension(const sslSocket *ss, TLSExtensionData *xtnData, - sslBuffer *buf, PRBool *append); -SECStatus ssl_InsertPaddingExtension(const sslSocket *ss, unsigned int prefixLen, - sslBuffer *buf); + ssl3HelloExtensionSenderFunc cb); +PRInt32 ssl3_CallHelloExtensionSenders(sslSocket *ss, PRBool append, PRUint32 maxBytes, + const ssl3HelloExtensionSender *sender); + +void ssl3_CalculatePaddingExtLen(sslSocket *ss, + unsigned int clientHelloLength); /* Thunks to let us operate on const sslSocket* objects. */ +SECStatus ssl3_ExtAppendHandshake(const sslSocket *ss, const void *void_src, + PRInt32 bytes); +SECStatus ssl3_ExtAppendHandshakeNumber(const sslSocket *ss, PRInt32 num, + PRInt32 lenSize); +SECStatus ssl3_ExtAppendHandshakeVariable(const sslSocket *ss, + const PRUint8 *src, PRInt32 bytes, + PRInt32 lenSize); void ssl3_ExtSendAlert(const sslSocket *ss, SSL3AlertLevel level, SSL3AlertDescription desc); void ssl3_ExtDecodeError(const sslSocket *ss); @@ -156,10 +156,4 @@ SECStatus ssl3_ExtConsumeHandshakeVariable(const sslSocket *ss, SECItem *i, PRUint32 bytes, PRUint8 **b, PRUint32 *length); -SECStatus SSLExp_GetExtensionSupport(PRUint16 type, - SSLExtensionSupport *support); -SECStatus SSLExp_InstallExtensionHooks( - PRFileDesc *fd, PRUint16 extension, SSLExtensionWriter writer, - void *writerArg, SSLExtensionHandler handler, void *handlerArg); - #endif |