mirror of
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1979 lines
73 KiB
C
1979 lines
73 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is PRIVATE to SSL and should be the first thing included by
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* any SSL implementation file.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __sslimpl_h_
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#define __sslimpl_h_
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#ifdef DEBUG
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#undef NDEBUG
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#else
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#undef NDEBUG
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#define NDEBUG
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#endif
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#include "secport.h"
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#include "secerr.h"
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#include "sslerr.h"
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#include "ssl3prot.h"
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#include "hasht.h"
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#include "nssilock.h"
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#include "pkcs11t.h"
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#if defined(XP_UNIX) || defined(XP_BEOS)
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#include "unistd.h"
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#endif
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#include "nssrwlk.h"
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#include "prthread.h"
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#include "prclist.h"
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#include "sslt.h" /* for some formerly private types, now public */
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/* to make some of these old enums public without namespace pollution,
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** it was necessary to prepend ssl_ to the names.
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** These #defines preserve compatibility with the old code here in libssl.
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*/
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typedef SSLKEAType SSL3KEAType;
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typedef SSLMACAlgorithm SSL3MACAlgorithm;
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typedef SSLSignType SSL3SignType;
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#define sign_null ssl_sign_null
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#define sign_rsa ssl_sign_rsa
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#define sign_dsa ssl_sign_dsa
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#define sign_ecdsa ssl_sign_ecdsa
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#define calg_null ssl_calg_null
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#define calg_rc4 ssl_calg_rc4
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#define calg_rc2 ssl_calg_rc2
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#define calg_des ssl_calg_des
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#define calg_3des ssl_calg_3des
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#define calg_idea ssl_calg_idea
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#define calg_fortezza ssl_calg_fortezza /* deprecated, must preserve */
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#define calg_aes ssl_calg_aes
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#define calg_camellia ssl_calg_camellia
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#define calg_seed ssl_calg_seed
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#define calg_aes_gcm ssl_calg_aes_gcm
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#define mac_null ssl_mac_null
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#define mac_md5 ssl_mac_md5
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#define mac_sha ssl_mac_sha
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#define hmac_md5 ssl_hmac_md5
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#define hmac_sha ssl_hmac_sha
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#define hmac_sha256 ssl_hmac_sha256
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#define hmac_sha384 ssl_hmac_sha384
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#define mac_aead ssl_mac_aead
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#define SET_ERROR_CODE /* reminder */
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#define SEND_ALERT /* reminder */
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#define TEST_FOR_FAILURE /* reminder */
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#define DEAL_WITH_FAILURE /* reminder */
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#if defined(DEBUG) || defined(TRACE)
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#ifdef __cplusplus
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#define Debug 1
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#else
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extern int Debug;
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#endif
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#else
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#undef Debug
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#endif
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#if defined(DEBUG) && !defined(TRACE) && !defined(NISCC_TEST)
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#define TRACE
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#endif
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#ifdef TRACE
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#define SSL_TRC(a,b) if (ssl_trace >= (a)) ssl_Trace b
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#define PRINT_BUF(a,b) if (ssl_trace >= (a)) ssl_PrintBuf b
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#define DUMP_MSG(a,b) if (ssl_trace >= (a)) ssl_DumpMsg b
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#else
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#define SSL_TRC(a,b)
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#define PRINT_BUF(a,b)
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#define DUMP_MSG(a,b)
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#endif
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#ifdef DEBUG
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#define SSL_DBG(b) if (ssl_debug) ssl_Trace b
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#else
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#define SSL_DBG(b)
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#endif
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#include "private/pprthred.h" /* for PR_InMonitor() */
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#define ssl_InMonitor(m) PZ_InMonitor(m)
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#define LSB(x) ((unsigned char) ((x) & 0xff))
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#define MSB(x) ((unsigned char) (((unsigned)(x)) >> 8))
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/************************************************************************/
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typedef enum { SSLAppOpRead = 0,
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SSLAppOpWrite,
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SSLAppOpRDWR,
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SSLAppOpPost,
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SSLAppOpHeader
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} SSLAppOperation;
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#define SSL_MIN_MASTER_KEY_BYTES 5
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#define SSL_MAX_MASTER_KEY_BYTES 64
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#define SSL2_SESSIONID_BYTES 16
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#define SSL3_SESSIONID_BYTES 32
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#define SSL_MIN_CHALLENGE_BYTES 16
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#define SSL_MAX_CHALLENGE_BYTES 32
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#define SSL_CHALLENGE_BYTES 16
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#define SSL_CONNECTIONID_BYTES 16
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#define SSL_MIN_CYPHER_ARG_BYTES 0
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#define SSL_MAX_CYPHER_ARG_BYTES 32
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#define SSL_MAX_MAC_BYTES 16
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#define SSL3_RSA_PMS_LENGTH 48
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#define SSL3_MASTER_SECRET_LENGTH 48
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/* number of wrap mechanisms potentially used to wrap master secrets. */
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#define SSL_NUM_WRAP_MECHS 16
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/* This makes the cert cache entry exactly 4k. */
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#define SSL_MAX_CACHED_CERT_LEN 4060
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#define NUM_MIXERS 9
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/* Mask of the 25 named curves we support. */
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#define SSL3_ALL_SUPPORTED_CURVES_MASK 0x3fffffe
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/* Mask of only 3 curves, suite B */
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#define SSL3_SUITE_B_SUPPORTED_CURVES_MASK 0x3800000
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#ifndef BPB
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#define BPB 8 /* Bits Per Byte */
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#endif
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#define EXPORT_RSA_KEY_LENGTH 64 /* bytes */
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#define INITIAL_DTLS_TIMEOUT_MS 1000 /* Default value from RFC 4347 = 1s*/
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#define MAX_DTLS_TIMEOUT_MS 60000 /* 1 minute */
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#define DTLS_FINISHED_TIMER_MS 120000 /* Time to wait in FINISHED state */
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typedef struct sslBufferStr sslBuffer;
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typedef struct sslConnectInfoStr sslConnectInfo;
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typedef struct sslGatherStr sslGather;
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typedef struct sslSecurityInfoStr sslSecurityInfo;
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typedef struct sslSessionIDStr sslSessionID;
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typedef struct sslSocketStr sslSocket;
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typedef struct sslSocketOpsStr sslSocketOps;
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typedef struct ssl3StateStr ssl3State;
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typedef struct ssl3CertNodeStr ssl3CertNode;
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typedef struct ssl3BulkCipherDefStr ssl3BulkCipherDef;
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typedef struct ssl3MACDefStr ssl3MACDef;
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typedef struct ssl3KeyPairStr ssl3KeyPair;
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typedef struct ssl3DHParamsStr ssl3DHParams;
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struct ssl3CertNodeStr {
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struct ssl3CertNodeStr *next;
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CERTCertificate * cert;
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};
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typedef SECStatus (*sslHandshakeFunc)(sslSocket *ss);
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/* This type points to the low layer send func,
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** e.g. ssl2_SendStream or ssl3_SendPlainText.
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** These functions return the same values as PR_Send,
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** i.e. >= 0 means number of bytes sent, < 0 means error.
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*/
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typedef PRInt32 (*sslSendFunc)(sslSocket *ss, const unsigned char *buf,
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PRInt32 n, PRInt32 flags);
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typedef void (*sslSessionIDCacheFunc) (sslSessionID *sid);
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typedef void (*sslSessionIDUncacheFunc)(sslSessionID *sid);
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typedef sslSessionID *(*sslSessionIDLookupFunc)(const PRIPv6Addr *addr,
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unsigned char* sid,
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unsigned int sidLen,
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CERTCertDBHandle * dbHandle);
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/* registerable callback function that either appends extension to buffer
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* or returns length of data that it would have appended.
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*/
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typedef PRInt32 (*ssl3HelloExtensionSenderFunc)(sslSocket *ss, PRBool append,
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PRUint32 maxBytes);
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/* registerable callback function that handles a received extension,
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* of the given type.
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*/
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typedef SECStatus (* ssl3HelloExtensionHandlerFunc)(sslSocket *ss,
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PRUint16 ex_type,
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SECItem * data);
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/* row in a table of hello extension senders */
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typedef struct {
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PRInt32 ex_type;
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ssl3HelloExtensionSenderFunc ex_sender;
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} ssl3HelloExtensionSender;
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/* row in a table of hello extension handlers */
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typedef struct {
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PRInt32 ex_type;
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ssl3HelloExtensionHandlerFunc ex_handler;
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} ssl3HelloExtensionHandler;
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extern SECStatus
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ssl3_RegisterServerHelloExtensionSender(sslSocket *ss, PRUint16 ex_type,
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ssl3HelloExtensionSenderFunc cb);
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extern PRInt32
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ssl3_CallHelloExtensionSenders(sslSocket *ss, PRBool append, PRUint32 maxBytes,
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const ssl3HelloExtensionSender *sender);
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extern unsigned int
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ssl3_CalculatePaddingExtensionLength(unsigned int clientHelloLength);
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extern PRInt32
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ssl3_AppendPaddingExtension(sslSocket *ss, unsigned int extensionLen,
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PRUint32 maxBytes);
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/* Socket ops */
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struct sslSocketOpsStr {
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int (*connect) (sslSocket *, const PRNetAddr *);
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PRFileDesc *(*accept) (sslSocket *, PRNetAddr *);
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int (*bind) (sslSocket *, const PRNetAddr *);
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int (*listen) (sslSocket *, int);
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int (*shutdown)(sslSocket *, int);
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int (*close) (sslSocket *);
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int (*recv) (sslSocket *, unsigned char *, int, int);
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/* points to the higher-layer send func, e.g. ssl_SecureSend. */
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int (*send) (sslSocket *, const unsigned char *, int, int);
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int (*read) (sslSocket *, unsigned char *, int);
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int (*write) (sslSocket *, const unsigned char *, int);
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int (*getpeername)(sslSocket *, PRNetAddr *);
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int (*getsockname)(sslSocket *, PRNetAddr *);
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};
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/* Flags interpreted by ssl send functions. */
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#define ssl_SEND_FLAG_FORCE_INTO_BUFFER 0x40000000
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#define ssl_SEND_FLAG_NO_BUFFER 0x20000000
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#define ssl_SEND_FLAG_USE_EPOCH 0x10000000 /* DTLS only */
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#define ssl_SEND_FLAG_NO_RETRANSMIT 0x08000000 /* DTLS only */
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#define ssl_SEND_FLAG_CAP_RECORD_VERSION \
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0x04000000 /* TLS only */
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#define ssl_SEND_FLAG_MASK 0x7f000000
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/*
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** A buffer object.
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*/
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struct sslBufferStr {
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unsigned char * buf;
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unsigned int len;
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unsigned int space;
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};
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/*
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** SSL3 cipher suite policy and preference struct.
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*/
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typedef struct {
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#if !defined(_WIN32)
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unsigned int cipher_suite : 16;
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unsigned int policy : 8;
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unsigned int enabled : 1;
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unsigned int isPresent : 1;
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#else
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ssl3CipherSuite cipher_suite;
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PRUint8 policy;
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unsigned char enabled : 1;
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unsigned char isPresent : 1;
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#endif
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} ssl3CipherSuiteCfg;
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#ifndef NSS_DISABLE_ECC
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#define ssl_V3_SUITES_IMPLEMENTED 65
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#else
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#define ssl_V3_SUITES_IMPLEMENTED 40
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#endif /* NSS_DISABLE_ECC */
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#define MAX_DTLS_SRTP_CIPHER_SUITES 4
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/* MAX_SIGNATURE_ALGORITHMS allows for a large number of combinations of
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* SSLSignType and SSLHashType, but not all combinations (specifically, this
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* doesn't allow space for combinations with MD5). */
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#define MAX_SIGNATURE_ALGORITHMS 15
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typedef struct sslOptionsStr {
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/* If SSL_SetNextProtoNego has been called, then this contains the
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* list of supported protocols. */
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SECItem nextProtoNego;
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unsigned int useSecurity : 1; /* 1 */
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unsigned int useSocks : 1; /* 2 */
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unsigned int requestCertificate : 1; /* 3 */
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unsigned int requireCertificate : 2; /* 4-5 */
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unsigned int handshakeAsClient : 1; /* 6 */
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unsigned int handshakeAsServer : 1; /* 7 */
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unsigned int enableSSL2 : 1; /* 8 */
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unsigned int unusedBit9 : 1; /* 9 */
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unsigned int unusedBit10 : 1; /* 10 */
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unsigned int noCache : 1; /* 11 */
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unsigned int fdx : 1; /* 12 */
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unsigned int v2CompatibleHello : 1; /* 13 */
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unsigned int detectRollBack : 1; /* 14 */
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unsigned int noStepDown : 1; /* 15 */
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unsigned int bypassPKCS11 : 1; /* 16 */
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unsigned int noLocks : 1; /* 17 */
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unsigned int enableSessionTickets : 1; /* 18 */
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unsigned int enableDeflate : 1; /* 19 */
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unsigned int enableRenegotiation : 2; /* 20-21 */
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unsigned int requireSafeNegotiation : 1; /* 22 */
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unsigned int enableFalseStart : 1; /* 23 */
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unsigned int cbcRandomIV : 1; /* 24 */
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unsigned int enableOCSPStapling : 1; /* 25 */
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unsigned int enableNPN : 1; /* 26 */
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unsigned int enableALPN : 1; /* 27 */
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unsigned int reuseServerECDHEKey : 1; /* 28 */
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unsigned int enableFallbackSCSV : 1; /* 29 */
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unsigned int enableServerDhe : 1; /* 30 */
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unsigned int enableExtendedMS : 1; /* 31 */
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} sslOptions;
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typedef enum { sslHandshakingUndetermined = 0,
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sslHandshakingAsClient,
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sslHandshakingAsServer
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} sslHandshakingType;
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typedef struct sslServerCertsStr {
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/* Configuration state for server sockets */
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CERTCertificate * serverCert;
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CERTCertificateList * serverCertChain;
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ssl3KeyPair * serverKeyPair;
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unsigned int serverKeyBits;
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} sslServerCerts;
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#define SERVERKEY serverKeyPair->privKey
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#define SSL_LOCK_RANK_SPEC 255
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#define SSL_LOCK_RANK_GLOBAL NSS_RWLOCK_RANK_NONE
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/* These are the valid values for shutdownHow.
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** These values are each 1 greater than the NSPR values, and the code
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** depends on that relation to efficiently convert PR_SHUTDOWN values
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** into ssl_SHUTDOWN values. These values use one bit for read, and
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** another bit for write, and can be used as bitmasks.
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*/
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#define ssl_SHUTDOWN_NONE 0 /* NOT shutdown at all */
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#define ssl_SHUTDOWN_RCV 1 /* PR_SHUTDOWN_RCV +1 */
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#define ssl_SHUTDOWN_SEND 2 /* PR_SHUTDOWN_SEND +1 */
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#define ssl_SHUTDOWN_BOTH 3 /* PR_SHUTDOWN_BOTH +1 */
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/*
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** A gather object. Used to read some data until a count has been
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** satisfied. Primarily for support of async sockets.
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** Everything in here is protected by the recvBufLock.
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*/
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struct sslGatherStr {
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int state; /* see GS_ values below. */ /* ssl 2 & 3 */
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/* "buf" holds received plaintext SSL records, after decrypt and MAC check.
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* SSL2: recv'd ciphertext records are put here, then decrypted in place.
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* SSL3: recv'd ciphertext records are put in inbuf (see below), then
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* decrypted into buf.
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*/
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sslBuffer buf; /*recvBufLock*/ /* ssl 2 & 3 */
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/* number of bytes previously read into hdr or buf(ssl2) or inbuf (ssl3).
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** (offset - writeOffset) is the number of ciphertext bytes read in but
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** not yet deciphered.
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*/
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unsigned int offset; /* ssl 2 & 3 */
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/* number of bytes to read in next call to ssl_DefRecv (recv) */
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unsigned int remainder; /* ssl 2 & 3 */
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/* Number of ciphertext bytes to read in after 2-byte SSL record header. */
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unsigned int count; /* ssl2 only */
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/* size of the final plaintext record.
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** == count - (recordPadding + MAC size)
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*/
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unsigned int recordLen; /* ssl2 only */
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/* number of bytes of padding to be removed after decrypting. */
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/* This value is taken from the record's hdr[2], which means a too large
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* value could crash us.
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*/
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unsigned int recordPadding; /* ssl2 only */
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/* plaintext DATA begins this many bytes into "buf". */
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unsigned int recordOffset; /* ssl2 only */
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int encrypted; /* SSL2 session is now encrypted. ssl2 only */
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/* These next two values are used by SSL2 and SSL3.
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** DoRecv uses them to extract application data.
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** The difference between writeOffset and readOffset is the amount of
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** data available to the application. Note that the actual offset of
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** the data in "buf" is recordOffset (above), not readOffset.
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** In the current implementation, this is made available before the
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** MAC is checked!!
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*/
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unsigned int readOffset; /* Spot where DATA reader (e.g. application
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** or handshake code) will read next.
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** Always zero for SSl3 application data.
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*/
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/* offset in buf/inbuf/hdr into which new data will be read from socket. */
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unsigned int writeOffset;
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/* Buffer for ssl3 to read (encrypted) data from the socket */
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sslBuffer inbuf; /*recvBufLock*/ /* ssl3 only */
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/* The ssl[23]_GatherData functions read data into this buffer, rather
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** than into buf or inbuf, while in the GS_HEADER state.
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** The portion of the SSL record header put here always comes off the wire
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** as plaintext, never ciphertext.
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** For SSL2, the plaintext portion is two bytes long. For SSl3 it is 5.
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** For DTLS it is 13.
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*/
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unsigned char hdr[13]; /* ssl 2 & 3 or dtls */
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/* Buffer for DTLS data read off the wire as a single datagram */
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sslBuffer dtlsPacket;
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/* the start of the buffered DTLS record in dtlsPacket */
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unsigned int dtlsPacketOffset;
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};
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/* sslGather.state */
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#define GS_INIT 0
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#define GS_HEADER 1
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#define GS_MAC 2
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#define GS_DATA 3
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#define GS_PAD 4
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/*
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** ssl3State and CipherSpec structs
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*/
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/* The SSL bulk cipher definition */
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typedef enum {
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cipher_null,
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cipher_rc4,
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cipher_rc4_40,
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cipher_rc4_56,
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cipher_rc2,
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cipher_rc2_40,
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cipher_des,
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cipher_3des,
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cipher_des40,
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cipher_idea,
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cipher_aes_128,
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cipher_aes_256,
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cipher_camellia_128,
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cipher_camellia_256,
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cipher_seed,
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cipher_aes_128_gcm,
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cipher_aes_256_gcm,
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cipher_missing /* reserved for no such supported cipher */
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/* This enum must match ssl3_cipherName[] in ssl3con.c. */
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} SSL3BulkCipher;
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typedef enum { type_stream, type_block, type_aead } CipherType;
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#define MAX_IV_LENGTH 24
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/*
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* Do not depend upon 64 bit arithmetic in the underlying machine.
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*/
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typedef struct {
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PRUint32 high;
|
|
PRUint32 low;
|
|
} SSL3SequenceNumber;
|
|
|
|
typedef PRUint16 DTLSEpoch;
|
|
|
|
typedef void (*DTLSTimerCb)(sslSocket *);
|
|
|
|
#define MAX_MAC_CONTEXT_BYTES 400 /* 400 is large enough for MD5, SHA-1, and
|
|
* SHA-256. For SHA-384 support, increase
|
|
* it to 712. */
|
|
#define MAX_MAC_CONTEXT_LLONGS (MAX_MAC_CONTEXT_BYTES / 8)
|
|
|
|
#define MAX_CIPHER_CONTEXT_BYTES 2080
|
|
#define MAX_CIPHER_CONTEXT_LLONGS (MAX_CIPHER_CONTEXT_BYTES / 8)
|
|
|
|
typedef struct {
|
|
SSL3Opaque wrapped_master_secret[48];
|
|
PRUint16 wrapped_master_secret_len;
|
|
PRUint8 msIsWrapped;
|
|
PRUint8 resumable;
|
|
PRUint8 extendedMasterSecretUsed;
|
|
} ssl3SidKeys; /* 52 bytes */
|
|
|
|
typedef struct {
|
|
PK11SymKey *write_key;
|
|
PK11SymKey *write_mac_key;
|
|
PK11Context *write_mac_context;
|
|
SECItem write_key_item;
|
|
SECItem write_iv_item;
|
|
SECItem write_mac_key_item;
|
|
SSL3Opaque write_iv[MAX_IV_LENGTH];
|
|
PRUint64 cipher_context[MAX_CIPHER_CONTEXT_LLONGS];
|
|
} ssl3KeyMaterial;
|
|
|
|
typedef SECStatus (*SSLCipher)(void * context,
|
|
unsigned char * out,
|
|
int * outlen,
|
|
int maxout,
|
|
const unsigned char *in,
|
|
int inlen);
|
|
typedef SECStatus (*SSLAEADCipher)(
|
|
ssl3KeyMaterial * keys,
|
|
PRBool doDecrypt,
|
|
unsigned char * out,
|
|
int * outlen,
|
|
int maxout,
|
|
const unsigned char *in,
|
|
int inlen,
|
|
const unsigned char *additionalData,
|
|
int additionalDataLen);
|
|
typedef SECStatus (*SSLCompressor)(void * context,
|
|
unsigned char * out,
|
|
int * outlen,
|
|
int maxout,
|
|
const unsigned char *in,
|
|
int inlen);
|
|
typedef SECStatus (*SSLDestroy)(void *context, PRBool freeit);
|
|
|
|
/* The DTLS anti-replay window. Defined here because we need it in
|
|
* the cipher spec. Note that this is a ring buffer but left and
|
|
* right represent the true window, with modular arithmetic used to
|
|
* map them onto the buffer.
|
|
*/
|
|
#define DTLS_RECVD_RECORDS_WINDOW 1024 /* Packets; approximate
|
|
* Must be divisible by 8
|
|
*/
|
|
typedef struct DTLSRecvdRecordsStr {
|
|
unsigned char data[DTLS_RECVD_RECORDS_WINDOW/8];
|
|
PRUint64 left;
|
|
PRUint64 right;
|
|
} DTLSRecvdRecords;
|
|
|
|
/*
|
|
** These are the "specs" in the "ssl3" struct.
|
|
** Access to the pointers to these specs, and all the specs' contents
|
|
** (direct and indirect) is protected by the reader/writer lock ss->specLock.
|
|
*/
|
|
typedef struct {
|
|
const ssl3BulkCipherDef *cipher_def;
|
|
const ssl3MACDef * mac_def;
|
|
SSLCompressionMethod compression_method;
|
|
int mac_size;
|
|
SSLCipher encode;
|
|
SSLCipher decode;
|
|
SSLAEADCipher aead;
|
|
SSLDestroy destroy;
|
|
void * encodeContext;
|
|
void * decodeContext;
|
|
SSLCompressor compressor; /* Don't name these fields compress */
|
|
SSLCompressor decompressor; /* and uncompress because zconf.h */
|
|
/* may define them as macros. */
|
|
SSLDestroy destroyCompressContext;
|
|
void * compressContext;
|
|
SSLDestroy destroyDecompressContext;
|
|
void * decompressContext;
|
|
PRBool bypassCiphers; /* did double bypass (at least) */
|
|
PK11SymKey * master_secret;
|
|
SSL3SequenceNumber write_seq_num;
|
|
SSL3SequenceNumber read_seq_num;
|
|
SSL3ProtocolVersion version;
|
|
ssl3KeyMaterial client;
|
|
ssl3KeyMaterial server;
|
|
SECItem msItem;
|
|
unsigned char key_block[NUM_MIXERS * HASH_LENGTH_MAX];
|
|
unsigned char raw_master_secret[56];
|
|
SECItem srvVirtName; /* for server: name that was negotiated
|
|
* with a client. For client - is
|
|
* always set to NULL.*/
|
|
DTLSEpoch epoch;
|
|
DTLSRecvdRecords recvdRecords;
|
|
} ssl3CipherSpec;
|
|
|
|
typedef enum { never_cached,
|
|
in_client_cache,
|
|
in_server_cache,
|
|
invalid_cache /* no longer in any cache. */
|
|
} Cached;
|
|
|
|
struct sslSessionIDStr {
|
|
/* The global cache lock must be held when accessing these members when the
|
|
* sid is in any cache.
|
|
*/
|
|
sslSessionID * next; /* chain used for client sockets, only */
|
|
Cached cached;
|
|
int references;
|
|
PRUint32 lastAccessTime; /* seconds since Jan 1, 1970 */
|
|
|
|
/* The rest of the members, except for the members of u.ssl3.locked, may
|
|
* be modified only when the sid is not in any cache.
|
|
*/
|
|
|
|
CERTCertificate * peerCert;
|
|
SECItemArray peerCertStatus; /* client only */
|
|
const char * peerID; /* client only */
|
|
const char * urlSvrName; /* client only */
|
|
CERTCertificate * localCert;
|
|
|
|
PRIPv6Addr addr;
|
|
PRUint16 port;
|
|
|
|
SSL3ProtocolVersion version;
|
|
|
|
PRUint32 creationTime; /* seconds since Jan 1, 1970 */
|
|
PRUint32 expirationTime; /* seconds since Jan 1, 1970 */
|
|
|
|
SSLSignType authAlgorithm;
|
|
PRUint32 authKeyBits;
|
|
SSLKEAType keaType;
|
|
PRUint32 keaKeyBits;
|
|
|
|
union {
|
|
struct {
|
|
/* the V2 code depends upon the size of sessionID. */
|
|
unsigned char sessionID[SSL2_SESSIONID_BYTES];
|
|
|
|
/* Stuff used to recreate key and read/write cipher objects */
|
|
SECItem masterKey; /* never wrapped */
|
|
int cipherType;
|
|
SECItem cipherArg;
|
|
int keyBits;
|
|
int secretKeyBits;
|
|
} ssl2;
|
|
struct {
|
|
/* values that are copied into the server's on-disk SID cache. */
|
|
PRUint8 sessionIDLength;
|
|
SSL3Opaque sessionID[SSL3_SESSIONID_BYTES];
|
|
|
|
ssl3CipherSuite cipherSuite;
|
|
SSLCompressionMethod compression;
|
|
int policy;
|
|
ssl3SidKeys keys;
|
|
CK_MECHANISM_TYPE masterWrapMech;
|
|
/* mechanism used to wrap master secret */
|
|
SSL3KEAType exchKeyType;
|
|
/* key type used in exchange algorithm,
|
|
* and to wrap the sym wrapping key. */
|
|
#ifndef NSS_DISABLE_ECC
|
|
PRUint32 negotiatedECCurves;
|
|
#endif /* NSS_DISABLE_ECC */
|
|
|
|
/* The following values are NOT restored from the server's on-disk
|
|
* session cache, but are restored from the client's cache.
|
|
*/
|
|
PK11SymKey * clientWriteKey;
|
|
PK11SymKey * serverWriteKey;
|
|
|
|
/* The following values pertain to the slot that wrapped the
|
|
** master secret. (used only in client)
|
|
*/
|
|
SECMODModuleID masterModuleID;
|
|
/* what module wrapped the master secret */
|
|
CK_SLOT_ID masterSlotID;
|
|
PRUint16 masterWrapIndex;
|
|
/* what's the key index for the wrapping key */
|
|
PRUint16 masterWrapSeries;
|
|
/* keep track of the slot series, so we don't
|
|
* accidently try to use new keys after the
|
|
* card gets removed and replaced.*/
|
|
|
|
/* The following values pertain to the slot that did the signature
|
|
** for client auth. (used only in client)
|
|
*/
|
|
SECMODModuleID clAuthModuleID;
|
|
CK_SLOT_ID clAuthSlotID;
|
|
PRUint16 clAuthSeries;
|
|
|
|
char masterValid;
|
|
char clAuthValid;
|
|
|
|
SECItem srvName;
|
|
|
|
/* This lock is lazily initialized by CacheSID when a sid is first
|
|
* cached. Before then, there is no need to lock anything because
|
|
* the sid isn't being shared by anything.
|
|
*/
|
|
PRRWLock *lock;
|
|
|
|
/* The lock must be held while reading or writing these members
|
|
* because they change while the sid is cached.
|
|
*/
|
|
struct {
|
|
/* The session ticket, if we have one, is sent as an extension
|
|
* in the ClientHello message. This field is used only by
|
|
* clients. It is protected by lock when lock is non-null
|
|
* (after the sid has been added to the client session cache).
|
|
*/
|
|
NewSessionTicket sessionTicket;
|
|
} locked;
|
|
} ssl3;
|
|
} u;
|
|
};
|
|
|
|
typedef struct ssl3CipherSuiteDefStr {
|
|
ssl3CipherSuite cipher_suite;
|
|
SSL3BulkCipher bulk_cipher_alg;
|
|
SSL3MACAlgorithm mac_alg;
|
|
SSL3KeyExchangeAlgorithm key_exchange_alg;
|
|
} ssl3CipherSuiteDef;
|
|
|
|
/*
|
|
** There are tables of these, all const.
|
|
*/
|
|
typedef struct {
|
|
SSL3KeyExchangeAlgorithm kea;
|
|
SSL3KEAType exchKeyType;
|
|
SSL3SignType signKeyType;
|
|
/* For export cipher suites:
|
|
* is_limited identifies a suite as having a limit on the key size.
|
|
* key_size_limit provides the corresponding limit. */
|
|
PRBool is_limited;
|
|
unsigned int key_size_limit;
|
|
PRBool tls_keygen;
|
|
/* True if the key exchange for the suite is ephemeral. Or to be more
|
|
* precise: true if the ServerKeyExchange message is always required. */
|
|
PRBool ephemeral;
|
|
} ssl3KEADef;
|
|
|
|
/*
|
|
** There are tables of these, all const.
|
|
*/
|
|
struct ssl3BulkCipherDefStr {
|
|
SSL3BulkCipher cipher;
|
|
SSLCipherAlgorithm calg;
|
|
int key_size;
|
|
int secret_key_size;
|
|
CipherType type;
|
|
int iv_size;
|
|
int block_size;
|
|
int tag_size; /* authentication tag size for AEAD ciphers. */
|
|
int explicit_nonce_size; /* for AEAD ciphers. */
|
|
};
|
|
|
|
/*
|
|
** There are tables of these, all const.
|
|
*/
|
|
struct ssl3MACDefStr {
|
|
SSL3MACAlgorithm mac;
|
|
CK_MECHANISM_TYPE mmech;
|
|
int pad_size;
|
|
int mac_size;
|
|
};
|
|
|
|
typedef enum {
|
|
wait_client_hello,
|
|
wait_client_cert,
|
|
wait_client_key,
|
|
wait_cert_verify,
|
|
wait_change_cipher,
|
|
wait_finished,
|
|
wait_server_hello,
|
|
wait_certificate_status,
|
|
wait_server_cert,
|
|
wait_server_key,
|
|
wait_cert_request,
|
|
wait_hello_done,
|
|
wait_new_session_ticket,
|
|
idle_handshake
|
|
} SSL3WaitState;
|
|
|
|
/*
|
|
* TLS extension related constants and data structures.
|
|
*/
|
|
typedef struct TLSExtensionDataStr TLSExtensionData;
|
|
typedef struct SessionTicketDataStr SessionTicketData;
|
|
|
|
struct TLSExtensionDataStr {
|
|
/* registered callbacks that send server hello extensions */
|
|
ssl3HelloExtensionSender serverSenders[SSL_MAX_EXTENSIONS];
|
|
/* Keep track of the extensions that are negotiated. */
|
|
PRUint16 numAdvertised;
|
|
PRUint16 numNegotiated;
|
|
PRUint16 advertised[SSL_MAX_EXTENSIONS];
|
|
PRUint16 negotiated[SSL_MAX_EXTENSIONS];
|
|
|
|
/* SessionTicket Extension related data. */
|
|
PRBool ticketTimestampVerified;
|
|
PRBool emptySessionTicket;
|
|
PRBool sentSessionTicketInClientHello;
|
|
|
|
/* SNI Extension related data
|
|
* Names data is not coppied from the input buffer. It can not be
|
|
* used outside the scope where input buffer is defined and that
|
|
* is beyond ssl3_HandleClientHello function. */
|
|
SECItem *sniNameArr;
|
|
PRUint32 sniNameArrSize;
|
|
};
|
|
|
|
typedef SECStatus (*sslRestartTarget)(sslSocket *);
|
|
|
|
/*
|
|
** A DTLS queued message (potentially to be retransmitted)
|
|
*/
|
|
typedef struct DTLSQueuedMessageStr {
|
|
PRCList link; /* The linked list link */
|
|
DTLSEpoch epoch; /* The epoch to use */
|
|
SSL3ContentType type; /* The message type */
|
|
unsigned char *data; /* The data */
|
|
PRUint16 len; /* The data length */
|
|
} DTLSQueuedMessage;
|
|
|
|
typedef enum {
|
|
handshake_hash_unknown = 0,
|
|
handshake_hash_combo = 1, /* The MD5/SHA-1 combination */
|
|
handshake_hash_single = 2 /* A single hash */
|
|
} SSL3HandshakeHashType;
|
|
|
|
/*
|
|
** This is the "hs" member of the "ssl3" struct.
|
|
** This entire struct is protected by ssl3HandshakeLock
|
|
*/
|
|
typedef struct SSL3HandshakeStateStr {
|
|
SSL3Random server_random;
|
|
SSL3Random client_random;
|
|
SSL3WaitState ws;
|
|
|
|
/* This group of members is used for handshake running hashes. */
|
|
SSL3HandshakeHashType hashType;
|
|
sslBuffer messages; /* Accumulated handshake messages */
|
|
#ifndef NO_PKCS11_BYPASS
|
|
/* Bypass mode:
|
|
* SSL 3.0 - TLS 1.1 use both |md5_cx| and |sha_cx|. |md5_cx| is used for
|
|
* MD5 and |sha_cx| for SHA-1.
|
|
* TLS 1.2 and later use only |sha_cx|, for SHA-256. NOTE: When we support
|
|
* SHA-384, increase MAX_MAC_CONTEXT_BYTES to 712. */
|
|
PRUint64 md5_cx[MAX_MAC_CONTEXT_LLONGS];
|
|
PRUint64 sha_cx[MAX_MAC_CONTEXT_LLONGS];
|
|
const SECHashObject * sha_obj;
|
|
/* The function prototype of sha_obj->clone() does not match the prototype
|
|
* of the freebl <HASH>_Clone functions, so we need a dedicated function
|
|
* pointer for the <HASH>_Clone function. */
|
|
void (*sha_clone)(void *dest, void *src);
|
|
#endif
|
|
/* PKCS #11 mode:
|
|
* SSL 3.0 - TLS 1.1 use both |md5| and |sha|. |md5| is used for MD5 and
|
|
* |sha| for SHA-1.
|
|
* TLS 1.2 and later use only |sha|, for SHA-256. */
|
|
/* NOTE: On the client side, TLS 1.2 and later use |md5| as a backup
|
|
* handshake hash for generating client auth signatures. Confusingly, the
|
|
* backup hash function is SHA-1. */
|
|
#define backupHash md5
|
|
PK11Context * md5;
|
|
PK11Context * sha;
|
|
|
|
const ssl3KEADef * kea_def;
|
|
ssl3CipherSuite cipher_suite;
|
|
const ssl3CipherSuiteDef *suite_def;
|
|
SSLCompressionMethod compression;
|
|
sslBuffer msg_body; /* protected by recvBufLock */
|
|
/* partial handshake message from record layer */
|
|
unsigned int header_bytes;
|
|
/* number of bytes consumed from handshake */
|
|
/* message for message type and header length */
|
|
SSL3HandshakeType msg_type;
|
|
unsigned long msg_len;
|
|
SECItem ca_list; /* used only by client */
|
|
PRBool isResuming; /* are we resuming a session */
|
|
PRBool usedStepDownKey; /* we did a server key exchange. */
|
|
PRBool sendingSCSV; /* instead of empty RI */
|
|
sslBuffer msgState; /* current state for handshake messages*/
|
|
/* protected by recvBufLock */
|
|
|
|
/* The session ticket received in a NewSessionTicket message is temporarily
|
|
* stored in newSessionTicket until the handshake is finished; then it is
|
|
* moved to the sid.
|
|
*/
|
|
PRBool receivedNewSessionTicket;
|
|
NewSessionTicket newSessionTicket;
|
|
|
|
PRUint16 finishedBytes; /* size of single finished below */
|
|
union {
|
|
TLSFinished tFinished[2]; /* client, then server */
|
|
SSL3Finished sFinished[2];
|
|
SSL3Opaque data[72];
|
|
} finishedMsgs;
|
|
#ifndef NSS_DISABLE_ECC
|
|
PRUint32 negotiatedECCurves; /* bit mask */
|
|
#endif /* NSS_DISABLE_ECC */
|
|
|
|
PRBool authCertificatePending;
|
|
/* Which function should SSL_RestartHandshake* call if we're blocked?
|
|
* One of NULL, ssl3_SendClientSecondRound, ssl3_FinishHandshake,
|
|
* or ssl3_AlwaysFail */
|
|
sslRestartTarget restartTarget;
|
|
/* Shared state between ssl3_HandleFinished and ssl3_FinishHandshake */
|
|
PRBool cacheSID;
|
|
|
|
PRBool canFalseStart; /* Can/did we False Start */
|
|
/* Which preliminaryinfo values have been set. */
|
|
PRUint32 preliminaryInfo;
|
|
|
|
/* clientSigAndHash contains the contents of the signature_algorithms
|
|
* extension (if any) from the client. This is only valid for TLS 1.2
|
|
* or later. */
|
|
SSLSignatureAndHashAlg *clientSigAndHash;
|
|
unsigned int numClientSigAndHash;
|
|
|
|
/* This group of values is used for DTLS */
|
|
PRUint16 sendMessageSeq; /* The sending message sequence
|
|
* number */
|
|
PRCList lastMessageFlight; /* The last message flight we
|
|
* sent */
|
|
PRUint16 maxMessageSent; /* The largest message we sent */
|
|
PRUint16 recvMessageSeq; /* The receiving message sequence
|
|
* number */
|
|
sslBuffer recvdFragments; /* The fragments we have received in
|
|
* a bitmask */
|
|
PRInt32 recvdHighWater; /* The high water mark for fragments
|
|
* received. -1 means no reassembly
|
|
* in progress. */
|
|
unsigned char cookie[32]; /* The cookie */
|
|
unsigned char cookieLen; /* The length of the cookie */
|
|
PRIntervalTime rtTimerStarted; /* When the timer was started */
|
|
DTLSTimerCb rtTimerCb; /* The function to call on expiry */
|
|
PRUint32 rtTimeoutMs; /* The length of the current timeout
|
|
* used for backoff (in ms) */
|
|
PRUint32 rtRetries; /* The retry counter */
|
|
} SSL3HandshakeState;
|
|
|
|
|
|
|
|
/*
|
|
** This is the "ssl3" struct, as in "ss->ssl3".
|
|
** note:
|
|
** usually, crSpec == cwSpec and prSpec == pwSpec.
|
|
** Sometimes, crSpec == pwSpec and prSpec == cwSpec.
|
|
** But there are never more than 2 actual specs.
|
|
** No spec must ever be modified if either "current" pointer points to it.
|
|
*/
|
|
struct ssl3StateStr {
|
|
|
|
/*
|
|
** The following Specs and Spec pointers must be protected using the
|
|
** Spec Lock.
|
|
*/
|
|
ssl3CipherSpec * crSpec; /* current read spec. */
|
|
ssl3CipherSpec * prSpec; /* pending read spec. */
|
|
ssl3CipherSpec * cwSpec; /* current write spec. */
|
|
ssl3CipherSpec * pwSpec; /* pending write spec. */
|
|
|
|
CERTCertificate * clientCertificate; /* used by client */
|
|
SECKEYPrivateKey * clientPrivateKey; /* used by client */
|
|
CERTCertificateList *clientCertChain; /* used by client */
|
|
PRBool sendEmptyCert; /* used by client */
|
|
|
|
int policy;
|
|
/* This says what cipher suites we can do, and should
|
|
* be either SSL_ALLOWED or SSL_RESTRICTED
|
|
*/
|
|
PLArenaPool * peerCertArena;
|
|
/* These are used to keep track of the peer CA */
|
|
void * peerCertChain;
|
|
/* chain while we are trying to validate it. */
|
|
CERTDistNames * ca_list;
|
|
/* used by server. trusted CAs for this socket. */
|
|
PRBool initialized;
|
|
SSL3HandshakeState hs;
|
|
ssl3CipherSpec specs[2]; /* one is current, one is pending. */
|
|
|
|
/* In a client: if the server supports Next Protocol Negotiation, then
|
|
* this is the protocol that was negotiated.
|
|
*/
|
|
SECItem nextProto;
|
|
SSLNextProtoState nextProtoState;
|
|
|
|
PRUint16 mtu; /* Our estimate of the MTU */
|
|
|
|
/* DTLS-SRTP cipher suite preferences (if any) */
|
|
PRUint16 dtlsSRTPCiphers[MAX_DTLS_SRTP_CIPHER_SUITES];
|
|
PRUint16 dtlsSRTPCipherCount;
|
|
PRUint16 dtlsSRTPCipherSuite; /* 0 if not selected */
|
|
PRBool fatalAlertSent;
|
|
PRUint16 numDHEGroups; /* used by server */
|
|
SSLDHEGroupType * dheGroups; /* used by server */
|
|
PRBool dheWeakGroupEnabled; /* used by server */
|
|
|
|
/* TLS 1.2 introduces separate signature algorithm negotiation.
|
|
* This is our preference order. */
|
|
SSLSignatureAndHashAlg signatureAlgorithms[MAX_SIGNATURE_ALGORITHMS];
|
|
unsigned int signatureAlgorithmCount;
|
|
};
|
|
|
|
#define DTLS_MAX_MTU 1500U /* Ethernet MTU but without subtracting the
|
|
* headers, so slightly larger than expected */
|
|
#define IS_DTLS(ss) (ss->protocolVariant == ssl_variant_datagram)
|
|
|
|
typedef struct {
|
|
SSL3ContentType type;
|
|
SSL3ProtocolVersion version;
|
|
SSL3SequenceNumber seq_num; /* DTLS only */
|
|
sslBuffer * buf;
|
|
} SSL3Ciphertext;
|
|
|
|
struct ssl3KeyPairStr {
|
|
SECKEYPrivateKey * privKey;
|
|
SECKEYPublicKey * pubKey;
|
|
PRInt32 refCount; /* use PR_Atomic calls for this. */
|
|
};
|
|
|
|
struct ssl3DHParamsStr {
|
|
SECItem prime; /* p */
|
|
SECItem base; /* g */
|
|
};
|
|
|
|
typedef struct SSLWrappedSymWrappingKeyStr {
|
|
SSL3Opaque wrappedSymmetricWrappingkey[512];
|
|
CK_MECHANISM_TYPE symWrapMechanism;
|
|
/* unwrapped symmetric wrapping key uses this mechanism */
|
|
CK_MECHANISM_TYPE asymWrapMechanism;
|
|
/* mechanism used to wrap the SymmetricWrappingKey using
|
|
* server's public and/or private keys. */
|
|
SSL3KEAType exchKeyType; /* type of keys used to wrap SymWrapKey*/
|
|
PRInt32 symWrapMechIndex;
|
|
PRUint16 wrappedSymKeyLen;
|
|
} SSLWrappedSymWrappingKey;
|
|
|
|
typedef struct SessionTicketStr {
|
|
PRUint16 ticket_version;
|
|
SSL3ProtocolVersion ssl_version;
|
|
ssl3CipherSuite cipher_suite;
|
|
SSLCompressionMethod compression_method;
|
|
SSLSignType authAlgorithm;
|
|
PRUint32 authKeyBits;
|
|
SSLKEAType keaType;
|
|
PRUint32 keaKeyBits;
|
|
/*
|
|
* exchKeyType and msWrapMech contain meaningful values only if
|
|
* ms_is_wrapped is true.
|
|
*/
|
|
PRUint8 ms_is_wrapped;
|
|
SSLKEAType exchKeyType; /* XXX(wtc): same as keaType above? */
|
|
CK_MECHANISM_TYPE msWrapMech;
|
|
PRUint16 ms_length;
|
|
SSL3Opaque master_secret[48];
|
|
PRBool extendedMasterSecretUsed;
|
|
ClientIdentity client_identity;
|
|
SECItem peer_cert;
|
|
PRUint32 timestamp;
|
|
SECItem srvName; /* negotiated server name */
|
|
} SessionTicket;
|
|
|
|
/*
|
|
* SSL2 buffers used in SSL3.
|
|
* writeBuf in the SecurityInfo maintained by sslsecur.c is used
|
|
* to hold the data just about to be passed to the kernel
|
|
* sendBuf in the ConnectInfo maintained by sslcon.c is used
|
|
* to hold handshake messages as they are accumulated
|
|
*/
|
|
|
|
/*
|
|
** This is "ci", as in "ss->sec.ci".
|
|
**
|
|
** Protection: All the variables in here are protected by
|
|
** firstHandshakeLock AND (in ssl3) ssl3HandshakeLock
|
|
*/
|
|
struct sslConnectInfoStr {
|
|
/* outgoing handshakes appended to this. */
|
|
sslBuffer sendBuf; /*xmitBufLock*/ /* ssl 2 & 3 */
|
|
|
|
PRIPv6Addr peer; /* ssl 2 & 3 */
|
|
unsigned short port; /* ssl 2 & 3 */
|
|
|
|
sslSessionID *sid; /* ssl 2 & 3 */
|
|
|
|
/* see CIS_HAVE defines below for the bit values in *elements. */
|
|
char elements; /* ssl2 only */
|
|
char requiredElements; /* ssl2 only */
|
|
char sentElements; /* ssl2 only */
|
|
|
|
char sentFinished; /* ssl2 only */
|
|
|
|
/* Length of server challenge. Used by client when saving challenge */
|
|
int serverChallengeLen; /* ssl2 only */
|
|
/* type of authentication requested by server */
|
|
unsigned char authType; /* ssl2 only */
|
|
|
|
/* Challenge sent by client to server in client-hello message */
|
|
/* SSL3 gets a copy of this. See ssl3_StartHandshakeHash(). */
|
|
unsigned char clientChallenge[SSL_MAX_CHALLENGE_BYTES]; /* ssl 2 & 3 */
|
|
|
|
/* Connection-id sent by server to client in server-hello message */
|
|
unsigned char connectionID[SSL_CONNECTIONID_BYTES]; /* ssl2 only */
|
|
|
|
/* Challenge sent by server to client in request-certificate message */
|
|
unsigned char serverChallenge[SSL_MAX_CHALLENGE_BYTES]; /* ssl2 only */
|
|
|
|
/* Information kept to handle a request-certificate message */
|
|
unsigned char readKey[SSL_MAX_MASTER_KEY_BYTES]; /* ssl2 only */
|
|
unsigned char writeKey[SSL_MAX_MASTER_KEY_BYTES]; /* ssl2 only */
|
|
unsigned keySize; /* ssl2 only */
|
|
};
|
|
|
|
/* bit values for ci->elements, ci->requiredElements, sentElements. */
|
|
#define CIS_HAVE_MASTER_KEY 0x01
|
|
#define CIS_HAVE_CERTIFICATE 0x02
|
|
#define CIS_HAVE_FINISHED 0x04
|
|
#define CIS_HAVE_VERIFY 0x08
|
|
|
|
/* Note: The entire content of this struct and whatever it points to gets
|
|
* blown away by SSL_ResetHandshake(). This is "sec" as in "ss->sec".
|
|
*
|
|
* Unless otherwise specified below, the contents of this struct are
|
|
* protected by firstHandshakeLock AND (in ssl3) ssl3HandshakeLock.
|
|
*/
|
|
struct sslSecurityInfoStr {
|
|
sslSendFunc send; /*xmitBufLock*/ /* ssl 2 & 3 */
|
|
int isServer; /* Spec Lock?*/ /* ssl 2 & 3 */
|
|
sslBuffer writeBuf; /*xmitBufLock*/ /* ssl 2 & 3 */
|
|
|
|
int cipherType; /* ssl 2 & 3 */
|
|
int keyBits; /* ssl 2 & 3 */
|
|
int secretKeyBits; /* ssl 2 & 3 */
|
|
CERTCertificate *localCert; /* ssl 2 & 3 */
|
|
CERTCertificate *peerCert; /* ssl 2 & 3 */
|
|
SECKEYPublicKey *peerKey; /* ssl3 only */
|
|
|
|
SSLSignType authAlgorithm;
|
|
PRUint32 authKeyBits;
|
|
SSLKEAType keaType;
|
|
PRUint32 keaKeyBits;
|
|
|
|
/*
|
|
** Procs used for SID cache (nonce) management.
|
|
** Different implementations exist for clients/servers
|
|
** The lookup proc is only used for servers. Baloney!
|
|
*/
|
|
sslSessionIDCacheFunc cache; /* ssl 2 & 3 */
|
|
sslSessionIDUncacheFunc uncache; /* ssl 2 & 3 */
|
|
|
|
/*
|
|
** everything below here is for ssl2 only.
|
|
** This stuff is equivalent to SSL3's "spec", and is protected by the
|
|
** same "Spec Lock" as used for SSL3's specs.
|
|
*/
|
|
PRUint32 sendSequence; /*xmitBufLock*/ /* ssl2 only */
|
|
PRUint32 rcvSequence; /*recvBufLock*/ /* ssl2 only */
|
|
|
|
/* Hash information; used for one-way-hash functions (MD2, MD5, etc.) */
|
|
const SECHashObject *hash; /* Spec Lock */ /* ssl2 only */
|
|
void *hashcx; /* Spec Lock */ /* ssl2 only */
|
|
|
|
SECItem sendSecret; /* Spec Lock */ /* ssl2 only */
|
|
SECItem rcvSecret; /* Spec Lock */ /* ssl2 only */
|
|
|
|
/* Session cypher contexts; one for each direction */
|
|
void *readcx; /* Spec Lock */ /* ssl2 only */
|
|
void *writecx; /* Spec Lock */ /* ssl2 only */
|
|
SSLCipher enc; /* Spec Lock */ /* ssl2 only */
|
|
SSLCipher dec; /* Spec Lock */ /* ssl2 only */
|
|
void (*destroy)(void *, PRBool); /* Spec Lock */ /* ssl2 only */
|
|
|
|
/* Blocking information for the session cypher */
|
|
int blockShift; /* Spec Lock */ /* ssl2 only */
|
|
int blockSize; /* Spec Lock */ /* ssl2 only */
|
|
|
|
/* These are used during a connection handshake */
|
|
sslConnectInfo ci; /* ssl 2 & 3 */
|
|
|
|
};
|
|
|
|
/*
|
|
** SSL Socket struct
|
|
**
|
|
** Protection: XXX
|
|
*/
|
|
struct sslSocketStr {
|
|
PRFileDesc * fd;
|
|
|
|
/* Pointer to operations vector for this socket */
|
|
const sslSocketOps * ops;
|
|
|
|
/* SSL socket options */
|
|
sslOptions opt;
|
|
/* Enabled version range */
|
|
SSLVersionRange vrange;
|
|
|
|
/* State flags */
|
|
unsigned long clientAuthRequested;
|
|
unsigned long delayDisabled; /* Nagle delay disabled */
|
|
unsigned long firstHsDone; /* first handshake is complete. */
|
|
unsigned long enoughFirstHsDone; /* enough of the first handshake is
|
|
* done for callbacks to be able to
|
|
* retrieve channel security
|
|
* parameters from the SSL socket. */
|
|
unsigned long handshakeBegun;
|
|
unsigned long lastWriteBlocked;
|
|
unsigned long recvdCloseNotify; /* received SSL EOF. */
|
|
unsigned long TCPconnected;
|
|
unsigned long appDataBuffered;
|
|
unsigned long peerRequestedProtection; /* from old renegotiation */
|
|
|
|
/* version of the protocol to use */
|
|
SSL3ProtocolVersion version;
|
|
SSL3ProtocolVersion clientHelloVersion; /* version sent in client hello. */
|
|
|
|
sslSecurityInfo sec; /* not a pointer any more */
|
|
|
|
/* protected by firstHandshakeLock AND (in ssl3) ssl3HandshakeLock. */
|
|
const char *url; /* ssl 2 & 3 */
|
|
|
|
sslHandshakeFunc handshake; /*firstHandshakeLock*/
|
|
sslHandshakeFunc nextHandshake; /*firstHandshakeLock*/
|
|
sslHandshakeFunc securityHandshake; /*firstHandshakeLock*/
|
|
|
|
/* the following variable is only used with socks or other proxies. */
|
|
char * peerID; /* String uniquely identifies target server. */
|
|
|
|
unsigned char * cipherSpecs;
|
|
unsigned int sizeCipherSpecs;
|
|
const unsigned char * preferredCipher;
|
|
|
|
ssl3KeyPair * stepDownKeyPair; /* RSA step down keys */
|
|
|
|
const ssl3DHParams *dheParams; /* DHE param */
|
|
ssl3KeyPair * dheKeyPair; /* DHE keys */
|
|
|
|
/* Callbacks */
|
|
SSLAuthCertificate authCertificate;
|
|
void *authCertificateArg;
|
|
SSLGetClientAuthData getClientAuthData;
|
|
void *getClientAuthDataArg;
|
|
SSLSNISocketConfig sniSocketConfig;
|
|
void *sniSocketConfigArg;
|
|
SSLBadCertHandler handleBadCert;
|
|
void *badCertArg;
|
|
SSLHandshakeCallback handshakeCallback;
|
|
void *handshakeCallbackData;
|
|
SSLCanFalseStartCallback canFalseStartCallback;
|
|
void *canFalseStartCallbackData;
|
|
void *pkcs11PinArg;
|
|
SSLNextProtoCallback nextProtoCallback;
|
|
void *nextProtoArg;
|
|
|
|
PRIntervalTime rTimeout; /* timeout for NSPR I/O */
|
|
PRIntervalTime wTimeout; /* timeout for NSPR I/O */
|
|
PRIntervalTime cTimeout; /* timeout for NSPR I/O */
|
|
|
|
PZLock * recvLock; /* lock against multiple reader threads. */
|
|
PZLock * sendLock; /* lock against multiple sender threads. */
|
|
|
|
PZMonitor * recvBufLock; /* locks low level recv buffers. */
|
|
PZMonitor * xmitBufLock; /* locks low level xmit buffers. */
|
|
|
|
/* Only one thread may operate on the socket until the initial handshake
|
|
** is complete. This Monitor ensures that. Since SSL2 handshake is
|
|
** only done once, this is also effectively the SSL2 handshake lock.
|
|
*/
|
|
PZMonitor * firstHandshakeLock;
|
|
|
|
/* This monitor protects the ssl3 handshake state machine data.
|
|
** Only one thread (reader or writer) may be in the ssl3 handshake state
|
|
** machine at any time. */
|
|
PZMonitor * ssl3HandshakeLock;
|
|
|
|
/* reader/writer lock, protects the secret data needed to encrypt and MAC
|
|
** outgoing records, and to decrypt and MAC check incoming ciphertext
|
|
** records. */
|
|
NSSRWLock * specLock;
|
|
|
|
/* handle to perm cert db (and implicitly to the temp cert db) used
|
|
** with this socket.
|
|
*/
|
|
CERTCertDBHandle * dbHandle;
|
|
|
|
PRThread * writerThread; /* thread holds SSL_LOCK_WRITER lock */
|
|
|
|
PRUint16 shutdownHow; /* See ssl_SHUTDOWN defines below. */
|
|
|
|
PRUint16 allowedByPolicy; /* copy of global policy bits. */
|
|
PRUint16 maybeAllowedByPolicy; /* copy of global policy bits. */
|
|
PRUint16 chosenPreference; /* SSL2 cipher preferences. */
|
|
|
|
sslHandshakingType handshaking;
|
|
|
|
/* Gather object used for gathering data */
|
|
sslGather gs; /*recvBufLock*/
|
|
|
|
sslBuffer saveBuf; /*xmitBufLock*/
|
|
sslBuffer pendingBuf; /*xmitBufLock*/
|
|
|
|
/* Configuration state for server sockets */
|
|
/* server cert and key for each KEA type */
|
|
sslServerCerts serverCerts[kt_kea_size];
|
|
/* each cert needs its own status */
|
|
SECItemArray * certStatusArray[kt_kea_size];
|
|
|
|
ssl3CipherSuiteCfg cipherSuites[ssl_V3_SUITES_IMPLEMENTED];
|
|
ssl3KeyPair * ephemeralECDHKeyPair; /* for ECDHE-* handshake */
|
|
|
|
/* SSL3 state info. Formerly was a pointer */
|
|
ssl3State ssl3;
|
|
|
|
/*
|
|
* TLS extension related data.
|
|
*/
|
|
/* True when the current session is a stateless resume. */
|
|
PRBool statelessResume;
|
|
TLSExtensionData xtnData;
|
|
|
|
/* Whether we are doing stream or datagram mode */
|
|
SSLProtocolVariant protocolVariant;
|
|
};
|
|
|
|
|
|
|
|
/* All the global data items declared here should be protected using the
|
|
** ssl_global_data_lock, which is a reader/writer lock.
|
|
*/
|
|
extern NSSRWLock * ssl_global_data_lock;
|
|
extern char ssl_debug;
|
|
extern char ssl_trace;
|
|
extern FILE * ssl_trace_iob;
|
|
extern FILE * ssl_keylog_iob;
|
|
extern CERTDistNames * ssl3_server_ca_list;
|
|
extern PRUint32 ssl_sid_timeout;
|
|
extern PRUint32 ssl3_sid_timeout;
|
|
|
|
extern const char * const ssl_cipherName[];
|
|
extern const char * const ssl3_cipherName[];
|
|
|
|
extern sslSessionIDLookupFunc ssl_sid_lookup;
|
|
extern sslSessionIDCacheFunc ssl_sid_cache;
|
|
extern sslSessionIDUncacheFunc ssl_sid_uncache;
|
|
|
|
/************************************************************************/
|
|
|
|
SEC_BEGIN_PROTOS
|
|
|
|
/* Internal initialization and installation of the SSL error tables */
|
|
extern SECStatus ssl_Init(void);
|
|
extern SECStatus ssl_InitializePRErrorTable(void);
|
|
|
|
/* Implementation of ops for default (non socks, non secure) case */
|
|
extern int ssl_DefConnect(sslSocket *ss, const PRNetAddr *addr);
|
|
extern PRFileDesc *ssl_DefAccept(sslSocket *ss, PRNetAddr *addr);
|
|
extern int ssl_DefBind(sslSocket *ss, const PRNetAddr *addr);
|
|
extern int ssl_DefListen(sslSocket *ss, int backlog);
|
|
extern int ssl_DefShutdown(sslSocket *ss, int how);
|
|
extern int ssl_DefClose(sslSocket *ss);
|
|
extern int ssl_DefRecv(sslSocket *ss, unsigned char *buf, int len, int flags);
|
|
extern int ssl_DefSend(sslSocket *ss, const unsigned char *buf,
|
|
int len, int flags);
|
|
extern int ssl_DefRead(sslSocket *ss, unsigned char *buf, int len);
|
|
extern int ssl_DefWrite(sslSocket *ss, const unsigned char *buf, int len);
|
|
extern int ssl_DefGetpeername(sslSocket *ss, PRNetAddr *name);
|
|
extern int ssl_DefGetsockname(sslSocket *ss, PRNetAddr *name);
|
|
extern int ssl_DefGetsockopt(sslSocket *ss, PRSockOption optname,
|
|
void *optval, PRInt32 *optlen);
|
|
extern int ssl_DefSetsockopt(sslSocket *ss, PRSockOption optname,
|
|
const void *optval, PRInt32 optlen);
|
|
|
|
/* Implementation of ops for socks only case */
|
|
extern int ssl_SocksConnect(sslSocket *ss, const PRNetAddr *addr);
|
|
extern PRFileDesc *ssl_SocksAccept(sslSocket *ss, PRNetAddr *addr);
|
|
extern int ssl_SocksBind(sslSocket *ss, const PRNetAddr *addr);
|
|
extern int ssl_SocksListen(sslSocket *ss, int backlog);
|
|
extern int ssl_SocksGetsockname(sslSocket *ss, PRNetAddr *name);
|
|
extern int ssl_SocksRecv(sslSocket *ss, unsigned char *buf, int len, int flags);
|
|
extern int ssl_SocksSend(sslSocket *ss, const unsigned char *buf,
|
|
int len, int flags);
|
|
extern int ssl_SocksRead(sslSocket *ss, unsigned char *buf, int len);
|
|
extern int ssl_SocksWrite(sslSocket *ss, const unsigned char *buf, int len);
|
|
|
|
/* Implementation of ops for secure only case */
|
|
extern int ssl_SecureConnect(sslSocket *ss, const PRNetAddr *addr);
|
|
extern PRFileDesc *ssl_SecureAccept(sslSocket *ss, PRNetAddr *addr);
|
|
extern int ssl_SecureRecv(sslSocket *ss, unsigned char *buf,
|
|
int len, int flags);
|
|
extern int ssl_SecureSend(sslSocket *ss, const unsigned char *buf,
|
|
int len, int flags);
|
|
extern int ssl_SecureRead(sslSocket *ss, unsigned char *buf, int len);
|
|
extern int ssl_SecureWrite(sslSocket *ss, const unsigned char *buf, int len);
|
|
extern int ssl_SecureShutdown(sslSocket *ss, int how);
|
|
extern int ssl_SecureClose(sslSocket *ss);
|
|
|
|
/* Implementation of ops for secure socks case */
|
|
extern int ssl_SecureSocksConnect(sslSocket *ss, const PRNetAddr *addr);
|
|
extern PRFileDesc *ssl_SecureSocksAccept(sslSocket *ss, PRNetAddr *addr);
|
|
extern PRFileDesc *ssl_FindTop(sslSocket *ss);
|
|
|
|
/* Gather funcs. */
|
|
extern sslGather * ssl_NewGather(void);
|
|
extern SECStatus ssl_InitGather(sslGather *gs);
|
|
extern void ssl_DestroyGather(sslGather *gs);
|
|
extern int ssl2_GatherData(sslSocket *ss, sslGather *gs, int flags);
|
|
extern int ssl2_GatherRecord(sslSocket *ss, int flags);
|
|
extern SECStatus ssl_GatherRecord1stHandshake(sslSocket *ss);
|
|
|
|
extern SECStatus ssl2_HandleClientHelloMessage(sslSocket *ss);
|
|
extern SECStatus ssl2_HandleServerHelloMessage(sslSocket *ss);
|
|
|
|
extern SECStatus ssl_CreateSecurityInfo(sslSocket *ss);
|
|
extern SECStatus ssl_CopySecurityInfo(sslSocket *ss, sslSocket *os);
|
|
extern void ssl_ResetSecurityInfo(sslSecurityInfo *sec, PRBool doMemset);
|
|
extern void ssl_DestroySecurityInfo(sslSecurityInfo *sec);
|
|
|
|
extern void ssl_PrintBuf(sslSocket *ss, const char *msg, const void *cp, int len);
|
|
extern void ssl_DumpMsg(sslSocket *ss, unsigned char *bp, unsigned len);
|
|
|
|
extern int ssl_SendSavedWriteData(sslSocket *ss);
|
|
extern SECStatus ssl_SaveWriteData(sslSocket *ss,
|
|
const void* p, unsigned int l);
|
|
extern SECStatus ssl2_BeginClientHandshake(sslSocket *ss);
|
|
extern SECStatus ssl2_BeginServerHandshake(sslSocket *ss);
|
|
extern int ssl_Do1stHandshake(sslSocket *ss);
|
|
|
|
extern SECStatus sslBuffer_Grow(sslBuffer *b, unsigned int newLen);
|
|
extern SECStatus sslBuffer_Append(sslBuffer *b, const void * data,
|
|
unsigned int len);
|
|
|
|
extern void ssl2_UseClearSendFunc(sslSocket *ss);
|
|
extern void ssl_ChooseSessionIDProcs(sslSecurityInfo *sec);
|
|
|
|
extern sslSessionID *ssl3_NewSessionID(sslSocket *ss, PRBool is_server);
|
|
extern sslSessionID *ssl_LookupSID(const PRIPv6Addr *addr, PRUint16 port,
|
|
const char *peerID, const char *urlSvrName);
|
|
extern void ssl_FreeSID(sslSessionID *sid);
|
|
|
|
extern int ssl3_SendApplicationData(sslSocket *ss, const PRUint8 *in,
|
|
int len, int flags);
|
|
|
|
extern PRBool ssl_FdIsBlocking(PRFileDesc *fd);
|
|
|
|
extern PRBool ssl_SocketIsBlocking(sslSocket *ss);
|
|
|
|
extern void ssl3_SetAlwaysBlock(sslSocket *ss);
|
|
|
|
extern SECStatus ssl_EnableNagleDelay(sslSocket *ss, PRBool enabled);
|
|
|
|
extern void ssl_FinishHandshake(sslSocket *ss);
|
|
|
|
/* Returns PR_TRUE if we are still waiting for the server to respond to our
|
|
* client second round. Once we've received any part of the server's second
|
|
* round then we don't bother trying to false start since it is almost always
|
|
* the case that the NewSessionTicket, ChangeCipherSoec, and Finished messages
|
|
* were sent in the same packet and we want to process them all at the same
|
|
* time. If we were to try to false start in the middle of the server's second
|
|
* round, then we would increase the number of I/O operations
|
|
* (SSL_ForceHandshake/PR_Recv/PR_Send/etc.) needed to finish the handshake.
|
|
*/
|
|
extern PRBool ssl3_WaitingForStartOfServerSecondRound(sslSocket *ss);
|
|
|
|
extern SECStatus
|
|
ssl3_CompressMACEncryptRecord(ssl3CipherSpec * cwSpec,
|
|
PRBool isServer,
|
|
PRBool isDTLS,
|
|
PRBool capRecordVersion,
|
|
SSL3ContentType type,
|
|
const SSL3Opaque * pIn,
|
|
PRUint32 contentLen,
|
|
sslBuffer * wrBuf);
|
|
extern PRInt32 ssl3_SendRecord(sslSocket *ss, DTLSEpoch epoch,
|
|
SSL3ContentType type,
|
|
const SSL3Opaque* pIn, PRInt32 nIn,
|
|
PRInt32 flags);
|
|
|
|
#ifdef NSS_ENABLE_ZLIB
|
|
/*
|
|
* The DEFLATE algorithm can result in an expansion of 0.1% + 12 bytes. For a
|
|
* maximum TLS record payload of 2**14 bytes, that's 29 bytes.
|
|
*/
|
|
#define SSL3_COMPRESSION_MAX_EXPANSION 29
|
|
#else /* !NSS_ENABLE_ZLIB */
|
|
#define SSL3_COMPRESSION_MAX_EXPANSION 0
|
|
#endif
|
|
|
|
/*
|
|
* make sure there is room in the write buffer for padding and
|
|
* other compression and cryptographic expansions.
|
|
*/
|
|
#define SSL3_BUFFER_FUDGE 100 + SSL3_COMPRESSION_MAX_EXPANSION
|
|
|
|
#define SSL_LOCK_READER(ss) if (ss->recvLock) PZ_Lock(ss->recvLock)
|
|
#define SSL_UNLOCK_READER(ss) if (ss->recvLock) PZ_Unlock(ss->recvLock)
|
|
#define SSL_LOCK_WRITER(ss) if (ss->sendLock) PZ_Lock(ss->sendLock)
|
|
#define SSL_UNLOCK_WRITER(ss) if (ss->sendLock) PZ_Unlock(ss->sendLock)
|
|
|
|
/* firstHandshakeLock -> recvBufLock */
|
|
#define ssl_Get1stHandshakeLock(ss) \
|
|
{ if (!ss->opt.noLocks) { \
|
|
PORT_Assert(PZ_InMonitor((ss)->firstHandshakeLock) || \
|
|
!ssl_HaveRecvBufLock(ss)); \
|
|
PZ_EnterMonitor((ss)->firstHandshakeLock); \
|
|
} }
|
|
#define ssl_Release1stHandshakeLock(ss) \
|
|
{ if (!ss->opt.noLocks) PZ_ExitMonitor((ss)->firstHandshakeLock); }
|
|
#define ssl_Have1stHandshakeLock(ss) \
|
|
(PZ_InMonitor((ss)->firstHandshakeLock))
|
|
|
|
/* ssl3HandshakeLock -> xmitBufLock */
|
|
#define ssl_GetSSL3HandshakeLock(ss) \
|
|
{ if (!ss->opt.noLocks) { \
|
|
PORT_Assert(!ssl_HaveXmitBufLock(ss)); \
|
|
PZ_EnterMonitor((ss)->ssl3HandshakeLock); \
|
|
} }
|
|
#define ssl_ReleaseSSL3HandshakeLock(ss) \
|
|
{ if (!ss->opt.noLocks) PZ_ExitMonitor((ss)->ssl3HandshakeLock); }
|
|
#define ssl_HaveSSL3HandshakeLock(ss) \
|
|
(PZ_InMonitor((ss)->ssl3HandshakeLock))
|
|
|
|
#define ssl_GetSpecReadLock(ss) \
|
|
{ if (!ss->opt.noLocks) NSSRWLock_LockRead((ss)->specLock); }
|
|
#define ssl_ReleaseSpecReadLock(ss) \
|
|
{ if (!ss->opt.noLocks) NSSRWLock_UnlockRead((ss)->specLock); }
|
|
/* NSSRWLock_HaveReadLock is not exported so there's no
|
|
* ssl_HaveSpecReadLock macro. */
|
|
|
|
#define ssl_GetSpecWriteLock(ss) \
|
|
{ if (!ss->opt.noLocks) NSSRWLock_LockWrite((ss)->specLock); }
|
|
#define ssl_ReleaseSpecWriteLock(ss) \
|
|
{ if (!ss->opt.noLocks) NSSRWLock_UnlockWrite((ss)->specLock); }
|
|
#define ssl_HaveSpecWriteLock(ss) \
|
|
(NSSRWLock_HaveWriteLock((ss)->specLock))
|
|
|
|
/* recvBufLock -> ssl3HandshakeLock -> xmitBufLock */
|
|
#define ssl_GetRecvBufLock(ss) \
|
|
{ if (!ss->opt.noLocks) { \
|
|
PORT_Assert(!ssl_HaveSSL3HandshakeLock(ss)); \
|
|
PORT_Assert(!ssl_HaveXmitBufLock(ss)); \
|
|
PZ_EnterMonitor((ss)->recvBufLock); \
|
|
} }
|
|
#define ssl_ReleaseRecvBufLock(ss) \
|
|
{ if (!ss->opt.noLocks) PZ_ExitMonitor( (ss)->recvBufLock); }
|
|
#define ssl_HaveRecvBufLock(ss) \
|
|
(PZ_InMonitor((ss)->recvBufLock))
|
|
|
|
/* xmitBufLock -> specLock */
|
|
#define ssl_GetXmitBufLock(ss) \
|
|
{ if (!ss->opt.noLocks) PZ_EnterMonitor((ss)->xmitBufLock); }
|
|
#define ssl_ReleaseXmitBufLock(ss) \
|
|
{ if (!ss->opt.noLocks) PZ_ExitMonitor( (ss)->xmitBufLock); }
|
|
#define ssl_HaveXmitBufLock(ss) \
|
|
(PZ_InMonitor((ss)->xmitBufLock))
|
|
|
|
/* Placeholder value used in version ranges when SSL 3.0 and all
|
|
* versions of TLS are disabled.
|
|
*/
|
|
#define SSL_LIBRARY_VERSION_NONE 0
|
|
|
|
/* SSL_LIBRARY_VERSION_MAX_SUPPORTED is the maximum version that this version
|
|
* of libssl supports. Applications should use SSL_VersionRangeGetSupported at
|
|
* runtime to determine which versions are supported by the version of libssl
|
|
* in use.
|
|
*/
|
|
#ifdef NSS_ENABLE_TLS_1_3
|
|
#define SSL_LIBRARY_VERSION_MAX_SUPPORTED SSL_LIBRARY_VERSION_TLS_1_3
|
|
#else
|
|
#define SSL_LIBRARY_VERSION_MAX_SUPPORTED SSL_LIBRARY_VERSION_TLS_1_2
|
|
#endif
|
|
|
|
/* Rename this macro SSL_ALL_VERSIONS_DISABLED when SSL 2.0 is removed. */
|
|
#define SSL3_ALL_VERSIONS_DISABLED(vrange) \
|
|
((vrange)->min == SSL_LIBRARY_VERSION_NONE)
|
|
|
|
extern PRBool ssl3_VersionIsSupported(SSLProtocolVariant protocolVariant,
|
|
SSL3ProtocolVersion version);
|
|
|
|
extern SECStatus ssl3_KeyAndMacDeriveBypass(ssl3CipherSpec * pwSpec,
|
|
const unsigned char * cr, const unsigned char * sr,
|
|
PRBool isTLS, PRBool isExport);
|
|
extern SECStatus ssl3_MasterSecretDeriveBypass( ssl3CipherSpec * pwSpec,
|
|
const unsigned char * cr, const unsigned char * sr,
|
|
const SECItem * pms, PRBool isTLS, PRBool isRSA);
|
|
|
|
/* These functions are called from secnav, even though they're "private". */
|
|
|
|
extern int ssl2_SendErrorMessage(struct sslSocketStr *ss, int error);
|
|
extern int SSL_RestartHandshakeAfterCertReq(struct sslSocketStr *ss,
|
|
CERTCertificate *cert,
|
|
SECKEYPrivateKey *key,
|
|
CERTCertificateList *certChain);
|
|
extern sslSocket *ssl_FindSocket(PRFileDesc *fd);
|
|
extern void ssl_FreeSocket(struct sslSocketStr *ssl);
|
|
extern SECStatus SSL3_SendAlert(sslSocket *ss, SSL3AlertLevel level,
|
|
SSL3AlertDescription desc);
|
|
extern SECStatus ssl3_DecodeError(sslSocket *ss);
|
|
|
|
extern SECStatus ssl3_AuthCertificateComplete(sslSocket *ss, PRErrorCode error);
|
|
|
|
/*
|
|
* for dealing with SSL 3.0 clients sending SSL 2.0 format hellos
|
|
*/
|
|
extern SECStatus ssl3_HandleV2ClientHello(
|
|
sslSocket *ss, unsigned char *buffer, int length);
|
|
extern SECStatus ssl3_StartHandshakeHash(
|
|
sslSocket *ss, unsigned char *buf, int length);
|
|
|
|
/*
|
|
* SSL3 specific routines
|
|
*/
|
|
SECStatus ssl3_SendClientHello(sslSocket *ss, PRBool resending);
|
|
|
|
/*
|
|
* input into the SSL3 machinery from the actualy network reading code
|
|
*/
|
|
SECStatus ssl3_HandleRecord(
|
|
sslSocket *ss, SSL3Ciphertext *cipher, sslBuffer *out);
|
|
|
|
int ssl3_GatherAppDataRecord(sslSocket *ss, int flags);
|
|
int ssl3_GatherCompleteHandshake(sslSocket *ss, int flags);
|
|
/*
|
|
* When talking to export clients or using export cipher suites, servers
|
|
* with public RSA keys larger than 512 bits need to use a 512-bit public
|
|
* key, signed by the larger key. The smaller key is a "step down" key.
|
|
* Generate that key pair and keep it around.
|
|
*/
|
|
extern SECStatus ssl3_CreateRSAStepDownKeys(sslSocket *ss);
|
|
|
|
extern SECStatus ssl3_SelectDHParams(sslSocket *ss);
|
|
|
|
#ifndef NSS_DISABLE_ECC
|
|
extern void ssl3_FilterECCipherSuitesByServerCerts(sslSocket *ss);
|
|
extern PRBool ssl3_IsECCEnabled(sslSocket *ss);
|
|
extern SECStatus ssl3_DisableECCSuites(sslSocket * ss,
|
|
const ssl3CipherSuite * suite);
|
|
extern PRUint32 ssl3_GetSupportedECCurveMask(sslSocket *ss);
|
|
|
|
|
|
/* Macro for finding a curve equivalent in strength to RSA key's */
|
|
#define SSL_RSASTRENGTH_TO_ECSTRENGTH(s) \
|
|
((s <= 1024) ? 160 \
|
|
: ((s <= 2048) ? 224 \
|
|
: ((s <= 3072) ? 256 \
|
|
: ((s <= 7168) ? 384 : 521 ) ) ) )
|
|
|
|
/* Types and names of elliptic curves used in TLS */
|
|
typedef enum { ec_type_explicitPrime = 1,
|
|
ec_type_explicitChar2Curve = 2,
|
|
ec_type_named
|
|
} ECType;
|
|
|
|
typedef enum { ec_noName = 0,
|
|
ec_sect163k1 = 1,
|
|
ec_sect163r1 = 2,
|
|
ec_sect163r2 = 3,
|
|
ec_sect193r1 = 4,
|
|
ec_sect193r2 = 5,
|
|
ec_sect233k1 = 6,
|
|
ec_sect233r1 = 7,
|
|
ec_sect239k1 = 8,
|
|
ec_sect283k1 = 9,
|
|
ec_sect283r1 = 10,
|
|
ec_sect409k1 = 11,
|
|
ec_sect409r1 = 12,
|
|
ec_sect571k1 = 13,
|
|
ec_sect571r1 = 14,
|
|
ec_secp160k1 = 15,
|
|
ec_secp160r1 = 16,
|
|
ec_secp160r2 = 17,
|
|
ec_secp192k1 = 18,
|
|
ec_secp192r1 = 19,
|
|
ec_secp224k1 = 20,
|
|
ec_secp224r1 = 21,
|
|
ec_secp256k1 = 22,
|
|
ec_secp256r1 = 23,
|
|
ec_secp384r1 = 24,
|
|
ec_secp521r1 = 25,
|
|
ec_pastLastName
|
|
} ECName;
|
|
|
|
extern SECStatus ssl3_ECName2Params(PLArenaPool *arena, ECName curve,
|
|
SECKEYECParams *params);
|
|
ECName ssl3_GetCurveWithECKeyStrength(PRUint32 curvemsk, int requiredECCbits);
|
|
|
|
|
|
#endif /* NSS_DISABLE_ECC */
|
|
|
|
extern SECStatus ssl3_CipherPrefSetDefault(ssl3CipherSuite which, PRBool on);
|
|
extern SECStatus ssl3_CipherPrefGetDefault(ssl3CipherSuite which, PRBool *on);
|
|
extern SECStatus ssl2_CipherPrefSetDefault(PRInt32 which, PRBool enabled);
|
|
extern SECStatus ssl2_CipherPrefGetDefault(PRInt32 which, PRBool *enabled);
|
|
|
|
extern SECStatus ssl3_CipherPrefSet(sslSocket *ss, ssl3CipherSuite which, PRBool on);
|
|
extern SECStatus ssl3_CipherPrefGet(sslSocket *ss, ssl3CipherSuite which, PRBool *on);
|
|
extern SECStatus ssl2_CipherPrefSet(sslSocket *ss, PRInt32 which, PRBool enabled);
|
|
extern SECStatus ssl2_CipherPrefGet(sslSocket *ss, PRInt32 which, PRBool *enabled);
|
|
|
|
extern SECStatus ssl3_SetPolicy(ssl3CipherSuite which, PRInt32 policy);
|
|
extern SECStatus ssl3_GetPolicy(ssl3CipherSuite which, PRInt32 *policy);
|
|
extern SECStatus ssl2_SetPolicy(PRInt32 which, PRInt32 policy);
|
|
extern SECStatus ssl2_GetPolicy(PRInt32 which, PRInt32 *policy);
|
|
|
|
extern void ssl2_InitSocketPolicy(sslSocket *ss);
|
|
extern void ssl3_InitSocketPolicy(sslSocket *ss);
|
|
|
|
extern SECStatus ssl3_ConstructV2CipherSpecsHack(sslSocket *ss,
|
|
unsigned char *cs, int *size);
|
|
|
|
extern SECStatus ssl3_RedoHandshake(sslSocket *ss, PRBool flushCache);
|
|
extern SECStatus ssl3_HandleHandshakeMessage(sslSocket *ss, SSL3Opaque *b,
|
|
PRUint32 length);
|
|
|
|
extern void ssl3_DestroySSL3Info(sslSocket *ss);
|
|
|
|
extern SECStatus ssl3_NegotiateVersion(sslSocket *ss,
|
|
SSL3ProtocolVersion peerVersion,
|
|
PRBool allowLargerPeerVersion);
|
|
|
|
extern SECStatus ssl_GetPeerInfo(sslSocket *ss);
|
|
|
|
#ifndef NSS_DISABLE_ECC
|
|
/* ECDH functions */
|
|
extern SECStatus ssl3_SendECDHClientKeyExchange(sslSocket * ss,
|
|
SECKEYPublicKey * svrPubKey);
|
|
extern SECStatus ssl3_HandleECDHServerKeyExchange(sslSocket *ss,
|
|
SSL3Opaque *b, PRUint32 length);
|
|
extern SECStatus ssl3_HandleECDHClientKeyExchange(sslSocket *ss,
|
|
SSL3Opaque *b, PRUint32 length,
|
|
SECKEYPublicKey *srvrPubKey,
|
|
SECKEYPrivateKey *srvrPrivKey);
|
|
extern SECStatus ssl3_SendECDHServerKeyExchange(
|
|
sslSocket *ss, const SSLSignatureAndHashAlg *sigAndHash);
|
|
#endif
|
|
|
|
extern SECStatus ssl3_ComputeCommonKeyHash(SSLHashType hashAlg,
|
|
PRUint8 * hashBuf,
|
|
unsigned int bufLen, SSL3Hashes *hashes,
|
|
PRBool bypassPKCS11);
|
|
extern void ssl3_DestroyCipherSpec(ssl3CipherSpec *spec, PRBool freeSrvName);
|
|
extern SECStatus ssl3_InitPendingCipherSpec(sslSocket *ss, PK11SymKey *pms);
|
|
extern SECStatus ssl3_AppendHandshake(sslSocket *ss, const void *void_src,
|
|
PRInt32 bytes);
|
|
extern SECStatus ssl3_AppendHandshakeHeader(sslSocket *ss,
|
|
SSL3HandshakeType t, PRUint32 length);
|
|
extern SECStatus ssl3_AppendHandshakeNumber(sslSocket *ss, PRInt32 num,
|
|
PRInt32 lenSize);
|
|
extern SECStatus ssl3_AppendHandshakeVariable( sslSocket *ss,
|
|
const SSL3Opaque *src, PRInt32 bytes, PRInt32 lenSize);
|
|
extern SECStatus ssl3_AppendSignatureAndHashAlgorithm(
|
|
sslSocket *ss, const SSLSignatureAndHashAlg* sigAndHash);
|
|
extern SECStatus ssl3_ConsumeHandshake(sslSocket *ss, void *v, PRInt32 bytes,
|
|
SSL3Opaque **b, PRUint32 *length);
|
|
extern PRInt32 ssl3_ConsumeHandshakeNumber(sslSocket *ss, PRInt32 bytes,
|
|
SSL3Opaque **b, PRUint32 *length);
|
|
extern SECStatus ssl3_ConsumeHandshakeVariable(sslSocket *ss, SECItem *i,
|
|
PRInt32 bytes, SSL3Opaque **b, PRUint32 *length);
|
|
extern PRBool ssl3_IsSupportedSignatureAlgorithm(
|
|
const SSLSignatureAndHashAlg *alg);
|
|
extern SECStatus ssl3_CheckSignatureAndHashAlgorithmConsistency(
|
|
sslSocket *ss, const SSLSignatureAndHashAlg *sigAndHash,
|
|
CERTCertificate* cert);
|
|
extern SECStatus ssl3_ConsumeSignatureAndHashAlgorithm(
|
|
sslSocket *ss, SSL3Opaque **b, PRUint32 *length,
|
|
SSLSignatureAndHashAlg *out);
|
|
extern SECStatus ssl3_SignHashes(SSL3Hashes *hash, SECKEYPrivateKey *key,
|
|
SECItem *buf, PRBool isTLS);
|
|
extern SECStatus ssl3_VerifySignedHashes(SSL3Hashes *hash,
|
|
CERTCertificate *cert, SECItem *buf, PRBool isTLS,
|
|
void *pwArg);
|
|
extern SECStatus ssl3_CacheWrappedMasterSecret(sslSocket *ss,
|
|
sslSessionID *sid, ssl3CipherSpec *spec,
|
|
SSL3KEAType effectiveExchKeyType);
|
|
|
|
/* Functions that handle ClientHello and ServerHello extensions. */
|
|
extern SECStatus ssl3_HandleServerNameXtn(sslSocket * ss,
|
|
PRUint16 ex_type, SECItem *data);
|
|
extern SECStatus ssl3_HandleSupportedCurvesXtn(sslSocket * ss,
|
|
PRUint16 ex_type, SECItem *data);
|
|
extern SECStatus ssl3_HandleSupportedPointFormatsXtn(sslSocket * ss,
|
|
PRUint16 ex_type, SECItem *data);
|
|
extern SECStatus ssl3_ClientHandleSessionTicketXtn(sslSocket *ss,
|
|
PRUint16 ex_type, SECItem *data);
|
|
extern SECStatus ssl3_ServerHandleSessionTicketXtn(sslSocket *ss,
|
|
PRUint16 ex_type, SECItem *data);
|
|
|
|
/* ClientHello and ServerHello extension senders.
|
|
* Note that not all extension senders are exposed here; only those that
|
|
* that need exposure.
|
|
*/
|
|
extern PRInt32 ssl3_SendSessionTicketXtn(sslSocket *ss, PRBool append,
|
|
PRUint32 maxBytes);
|
|
|
|
/* ClientHello and ServerHello extension senders.
|
|
* The code is in ssl3ext.c.
|
|
*/
|
|
extern PRInt32 ssl3_SendServerNameXtn(sslSocket *ss, PRBool append,
|
|
PRUint32 maxBytes);
|
|
|
|
/* Assigns new cert, cert chain and keys to ss->serverCerts
|
|
* struct. If certChain is NULL, tries to find one. Aborts if
|
|
* fails to do so. If cert and keyPair are NULL - unconfigures
|
|
* sslSocket of kea type.*/
|
|
extern SECStatus ssl_ConfigSecureServer(sslSocket *ss, CERTCertificate *cert,
|
|
const CERTCertificateList *certChain,
|
|
ssl3KeyPair *keyPair, SSLKEAType kea);
|
|
|
|
#ifndef NSS_DISABLE_ECC
|
|
extern PRInt32 ssl3_SendSupportedCurvesXtn(sslSocket *ss,
|
|
PRBool append, PRUint32 maxBytes);
|
|
extern PRInt32 ssl3_SendSupportedPointFormatsXtn(sslSocket *ss,
|
|
PRBool append, PRUint32 maxBytes);
|
|
#endif
|
|
|
|
/* call the registered extension handlers. */
|
|
extern SECStatus ssl3_HandleHelloExtensions(sslSocket *ss,
|
|
SSL3Opaque **b, PRUint32 *length);
|
|
|
|
/* Hello Extension related routines. */
|
|
extern PRBool ssl3_ExtensionNegotiated(sslSocket *ss, PRUint16 ex_type);
|
|
extern void ssl3_SetSIDSessionTicket(sslSessionID *sid,
|
|
/*in/out*/ NewSessionTicket *session_ticket);
|
|
extern SECStatus ssl3_SendNewSessionTicket(sslSocket *ss);
|
|
extern PRBool ssl_GetSessionTicketKeys(unsigned char *keyName,
|
|
unsigned char *encKey, unsigned char *macKey);
|
|
extern PRBool ssl_GetSessionTicketKeysPKCS11(SECKEYPrivateKey *svrPrivKey,
|
|
SECKEYPublicKey *svrPubKey, void *pwArg,
|
|
unsigned char *keyName, PK11SymKey **aesKey,
|
|
PK11SymKey **macKey);
|
|
|
|
/* Tell clients to consider tickets valid for this long. */
|
|
#define TLS_EX_SESS_TICKET_LIFETIME_HINT (2 * 24 * 60 * 60) /* 2 days */
|
|
#define TLS_EX_SESS_TICKET_VERSION (0x0101)
|
|
|
|
extern SECStatus ssl3_ValidateNextProtoNego(const unsigned char* data,
|
|
unsigned int length);
|
|
|
|
/* Construct a new NSPR socket for the app to use */
|
|
extern PRFileDesc *ssl_NewPRSocket(sslSocket *ss, PRFileDesc *fd);
|
|
extern void ssl_FreePRSocket(PRFileDesc *fd);
|
|
|
|
/* Internal config function so SSL3 can initialize the present state of
|
|
* various ciphers */
|
|
extern int ssl3_config_match_init(sslSocket *);
|
|
|
|
|
|
/* Create a new ref counted key pair object from two keys. */
|
|
extern ssl3KeyPair * ssl3_NewKeyPair( SECKEYPrivateKey * privKey,
|
|
SECKEYPublicKey * pubKey);
|
|
|
|
/* get a new reference (bump ref count) to an ssl3KeyPair. */
|
|
extern ssl3KeyPair * ssl3_GetKeyPairRef(ssl3KeyPair * keyPair);
|
|
|
|
/* Decrement keypair's ref count and free if zero. */
|
|
extern void ssl3_FreeKeyPair(ssl3KeyPair * keyPair);
|
|
|
|
/* calls for accessing wrapping keys across processes. */
|
|
extern PRBool
|
|
ssl_GetWrappingKey( PRInt32 symWrapMechIndex,
|
|
SSL3KEAType exchKeyType,
|
|
SSLWrappedSymWrappingKey *wswk);
|
|
|
|
/* The caller passes in the new value it wants
|
|
* to set. This code tests the wrapped sym key entry in the file on disk.
|
|
* If it is uninitialized, this function writes the caller's value into
|
|
* the disk entry, and returns false.
|
|
* Otherwise, it overwrites the caller's wswk with the value obtained from
|
|
* the disk, and returns PR_TRUE.
|
|
* This is all done while holding the locks/semaphores necessary to make
|
|
* the operation atomic.
|
|
*/
|
|
extern PRBool
|
|
ssl_SetWrappingKey(SSLWrappedSymWrappingKey *wswk);
|
|
|
|
/* get rid of the symmetric wrapping key references. */
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extern SECStatus SSL3_ShutdownServerCache(void);
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extern SECStatus ssl_InitSymWrapKeysLock(void);
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extern SECStatus ssl_FreeSymWrapKeysLock(void);
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extern SECStatus ssl_InitSessionCacheLocks(PRBool lazyInit);
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extern SECStatus ssl_FreeSessionCacheLocks(void);
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/**************** DTLS-specific functions **************/
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extern void dtls_FreeQueuedMessage(DTLSQueuedMessage *msg);
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extern void dtls_FreeQueuedMessages(PRCList *lst);
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extern void dtls_FreeHandshakeMessages(PRCList *lst);
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extern SECStatus dtls_HandleHandshake(sslSocket *ss, sslBuffer *origBuf);
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extern SECStatus dtls_HandleHelloVerifyRequest(sslSocket *ss,
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SSL3Opaque *b, PRUint32 length);
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extern SECStatus dtls_StageHandshakeMessage(sslSocket *ss);
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extern SECStatus dtls_QueueMessage(sslSocket *ss, SSL3ContentType type,
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const SSL3Opaque *pIn, PRInt32 nIn);
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extern SECStatus dtls_FlushHandshakeMessages(sslSocket *ss, PRInt32 flags);
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extern SECStatus dtls_CompressMACEncryptRecord(sslSocket *ss,
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DTLSEpoch epoch,
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PRBool use_epoch,
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SSL3ContentType type,
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const SSL3Opaque *pIn,
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PRUint32 contentLen,
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sslBuffer *wrBuf);
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SECStatus ssl3_DisableNonDTLSSuites(sslSocket * ss);
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extern SECStatus dtls_StartTimer(sslSocket *ss, DTLSTimerCb cb);
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extern SECStatus dtls_RestartTimer(sslSocket *ss, PRBool backoff,
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DTLSTimerCb cb);
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extern void dtls_CheckTimer(sslSocket *ss);
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extern void dtls_CancelTimer(sslSocket *ss);
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extern void dtls_FinishedTimerCb(sslSocket *ss);
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extern void dtls_SetMTU(sslSocket *ss, PRUint16 advertised);
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extern void dtls_InitRecvdRecords(DTLSRecvdRecords *records);
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extern int dtls_RecordGetRecvd(DTLSRecvdRecords *records, PRUint64 seq);
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extern void dtls_RecordSetRecvd(DTLSRecvdRecords *records, PRUint64 seq);
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extern void dtls_RehandshakeCleanup(sslSocket *ss);
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extern SSL3ProtocolVersion
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dtls_TLSVersionToDTLSVersion(SSL3ProtocolVersion tlsv);
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extern SSL3ProtocolVersion
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dtls_DTLSVersionToTLSVersion(SSL3ProtocolVersion dtlsv);
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/********************** misc calls *********************/
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#ifdef DEBUG
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extern void ssl3_CheckCipherSuiteOrderConsistency();
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#endif
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extern int ssl_MapLowLevelError(int hiLevelError);
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extern PRUint32 ssl_Time(void);
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extern void SSL_AtomicIncrementLong(long * x);
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SECStatus SSL_DisableDefaultExportCipherSuites(void);
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SECStatus SSL_DisableExportCipherSuites(PRFileDesc * fd);
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PRBool SSL_IsExportCipherSuite(PRUint16 cipherSuite);
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extern SECStatus
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ssl3_TLSPRFWithMasterSecret(ssl3CipherSpec *spec,
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const char *label, unsigned int labelLen,
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const unsigned char *val, unsigned int valLen,
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unsigned char *out, unsigned int outLen);
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extern SECOidTag
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ssl3_TLSHashAlgorithmToOID(SSLHashType hashFunc);
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#ifdef TRACE
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#define SSL_TRACE(msg) ssl_Trace msg
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#else
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#define SSL_TRACE(msg)
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#endif
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void ssl_Trace(const char *format, ...);
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SEC_END_PROTOS
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#if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS)
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#define SSL_GETPID getpid
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#elif defined(WIN32)
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extern int __cdecl _getpid(void);
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#define SSL_GETPID _getpid
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#else
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#define SSL_GETPID() 0
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#endif
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#endif /* __sslimpl_h_ */
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