| Index: net/third_party/nss/ssl/sslcon.c
|
| diff --git a/net/third_party/nss/ssl/sslcon.c b/net/third_party/nss/ssl/sslcon.c
|
| deleted file mode 100644
|
| index 95d27275f4440a308fa7ae8ed7e870b9e67ace32..0000000000000000000000000000000000000000
|
| --- a/net/third_party/nss/ssl/sslcon.c
|
| +++ /dev/null
|
| @@ -1,3688 +0,0 @@
|
| -/*
|
| - * SSL v2 handshake functions, and functions common to SSL2 and SSL3.
|
| - *
|
| - * This Source Code Form is subject to the terms of the Mozilla Public
|
| - * License, v. 2.0. If a copy of the MPL was not distributed with this
|
| - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
| -
|
| -#include "nssrenam.h"
|
| -#include "cert.h"
|
| -#include "secitem.h"
|
| -#include "sechash.h"
|
| -#include "cryptohi.h" /* for SGN_ funcs */
|
| -#include "keyhi.h" /* for SECKEY_ high level functions. */
|
| -#include "ssl.h"
|
| -#include "sslimpl.h"
|
| -#include "sslproto.h"
|
| -#include "ssl3prot.h"
|
| -#include "sslerr.h"
|
| -#include "pk11func.h"
|
| -#include "prinit.h"
|
| -#include "prtime.h" /* for PR_Now() */
|
| -
|
| -static PRBool policyWasSet;
|
| -
|
| -#define ssl2_NUM_SUITES_IMPLEMENTED 6
|
| -
|
| -/* This list is sent back to the client when the client-hello message
|
| - * contains no overlapping ciphers, so the client can report what ciphers
|
| - * are supported by the server. Unlike allCipherSuites (above), this list
|
| - * is sorted by descending preference, not by cipherSuite number.
|
| - */
|
| -/* clang-format off */
|
| -static const PRUint8 implementedCipherSuites[ssl2_NUM_SUITES_IMPLEMENTED * 3] = {
|
| - SSL_CK_RC4_128_WITH_MD5, 0x00, 0x80,
|
| - SSL_CK_RC2_128_CBC_WITH_MD5, 0x00, 0x80,
|
| - SSL_CK_DES_192_EDE3_CBC_WITH_MD5, 0x00, 0xC0,
|
| - SSL_CK_DES_64_CBC_WITH_MD5, 0x00, 0x40,
|
| - SSL_CK_RC4_128_EXPORT40_WITH_MD5, 0x00, 0x80,
|
| - SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5, 0x00, 0x80
|
| -};
|
| -
|
| -
|
| -typedef struct ssl2SpecsStr {
|
| - PRUint8 nkm; /* do this many hashes to generate key material. */
|
| - PRUint8 nkd; /* size of readKey and writeKey in bytes. */
|
| - PRUint8 blockSize;
|
| - PRUint8 blockShift;
|
| - CK_MECHANISM_TYPE mechanism;
|
| - PRUint8 keyLen; /* cipher symkey size in bytes. */
|
| - PRUint8 pubLen; /* publicly reveal this many bytes of key. */
|
| - PRUint8 ivLen; /* length of IV data at *ca. */
|
| -} ssl2Specs;
|
| -
|
| -static const ssl2Specs ssl_Specs[] = {
|
| - /* NONE */
|
| - { 0, 0, 0, 0 },
|
| - /* SSL_CK_RC4_128_WITH_MD5 */
|
| - { 2, 16, 1, 0, CKM_RC4, 16, 0, 0 },
|
| - /* SSL_CK_RC4_128_EXPORT40_WITH_MD5 */
|
| - { 2, 16, 1, 0, CKM_RC4, 16, 11, 0 },
|
| - /* SSL_CK_RC2_128_CBC_WITH_MD5 */
|
| - { 2, 16, 8, 3, CKM_RC2_CBC, 16, 0, 8 },
|
| - /* SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5 */
|
| - { 2, 16, 8, 3, CKM_RC2_CBC, 16, 11, 8 },
|
| - /* SSL_CK_IDEA_128_CBC_WITH_MD5 */
|
| - { 0, 0, 0, 0 },
|
| - /* SSL_CK_DES_64_CBC_WITH_MD5 */
|
| - { 1, 8, 8, 3, CKM_DES_CBC, 8, 0, 8 },
|
| - /* SSL_CK_DES_192_EDE3_CBC_WITH_MD5 */
|
| - { 3, 24, 8, 3, CKM_DES3_CBC, 24, 0, 8 },
|
| -};
|
| -/* clang-format on */
|
| -
|
| -#define SET_ERROR_CODE /* reminder */
|
| -#define TEST_FOR_FAILURE /* reminder */
|
| -
|
| -/*
|
| -** Put a string tag in the library so that we can examine an executable
|
| -** and see what kind of security it supports.
|
| -*/
|
| -const char *ssl_version = "SECURITY_VERSION:"
|
| - " +us"
|
| - " +export"
|
| -#ifdef TRACE
|
| - " +trace"
|
| -#endif
|
| -#ifdef DEBUG
|
| - " +debug"
|
| -#endif
|
| - ;
|
| -
|
| -const char *const ssl_cipherName[] = {
|
| - "unknown",
|
| - "RC4",
|
| - "RC4-Export",
|
| - "RC2-CBC",
|
| - "RC2-CBC-Export",
|
| - "IDEA-CBC",
|
| - "DES-CBC",
|
| - "DES-EDE3-CBC",
|
| - "unknown",
|
| - "unknown", /* was fortezza, NO LONGER USED */
|
| -};
|
| -
|
| -/* bit-masks, showing which SSLv2 suites are allowed.
|
| - * lsb corresponds to first cipher suite in allCipherSuites[].
|
| - */
|
| -static PRUint16 allowedByPolicy; /* all off by default */
|
| -static PRUint16 maybeAllowedByPolicy; /* all off by default */
|
| -static PRUint16 chosenPreference = 0xff; /* all on by default */
|
| -
|
| -/* bit values for the above two bit masks */
|
| -#define SSL_CB_RC4_128_WITH_MD5 (1 << SSL_CK_RC4_128_WITH_MD5)
|
| -#define SSL_CB_RC4_128_EXPORT40_WITH_MD5 (1 << SSL_CK_RC4_128_EXPORT40_WITH_MD5)
|
| -#define SSL_CB_RC2_128_CBC_WITH_MD5 (1 << SSL_CK_RC2_128_CBC_WITH_MD5)
|
| -#define SSL_CB_RC2_128_CBC_EXPORT40_WITH_MD5 (1 << SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5)
|
| -#define SSL_CB_IDEA_128_CBC_WITH_MD5 (1 << SSL_CK_IDEA_128_CBC_WITH_MD5)
|
| -#define SSL_CB_DES_64_CBC_WITH_MD5 (1 << SSL_CK_DES_64_CBC_WITH_MD5)
|
| -#define SSL_CB_DES_192_EDE3_CBC_WITH_MD5 (1 << SSL_CK_DES_192_EDE3_CBC_WITH_MD5)
|
| -#define SSL_CB_IMPLEMENTED \
|
| - (SSL_CB_RC4_128_WITH_MD5 | \
|
| - SSL_CB_RC4_128_EXPORT40_WITH_MD5 | \
|
| - SSL_CB_RC2_128_CBC_WITH_MD5 | \
|
| - SSL_CB_RC2_128_CBC_EXPORT40_WITH_MD5 | \
|
| - SSL_CB_DES_64_CBC_WITH_MD5 | \
|
| - SSL_CB_DES_192_EDE3_CBC_WITH_MD5)
|
| -
|
| -/* Construct a socket's list of cipher specs from the global default values.
|
| - */
|
| -static SECStatus
|
| -ssl2_ConstructCipherSpecs(sslSocket *ss)
|
| -{
|
| - PRUint8 *cs = NULL;
|
| - unsigned int allowed;
|
| - unsigned int count;
|
| - int ssl3_count = 0;
|
| - int final_count;
|
| - int i;
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - count = 0;
|
| - PORT_Assert(ss != 0);
|
| - allowed = !ss->opt.enableSSL2 ? 0 : (ss->allowedByPolicy &
|
| - ss->chosenPreference & SSL_CB_IMPLEMENTED);
|
| - while (allowed) {
|
| - if (allowed & 1)
|
| - ++count;
|
| - allowed >>= 1;
|
| - }
|
| -
|
| - /* Call ssl3_config_match_init() once here,
|
| - * instead of inside ssl3_ConstructV2CipherSpecsHack(),
|
| - * because the latter gets called twice below,
|
| - * and then again in ssl2_BeginClientHandshake().
|
| - */
|
| - ssl3_config_match_init(ss);
|
| -
|
| - /* ask SSL3 how many cipher suites it has. */
|
| - rv = ssl3_ConstructV2CipherSpecsHack(ss, NULL, &ssl3_count);
|
| - if (rv < 0)
|
| - return rv;
|
| - count += ssl3_count;
|
| -
|
| - /* Allocate memory to hold cipher specs */
|
| - if (count > 0)
|
| - cs = (PRUint8 *)PORT_Alloc(count * 3);
|
| - else
|
| - PORT_SetError(SSL_ERROR_SSL_DISABLED);
|
| - if (cs == NULL)
|
| - return SECFailure;
|
| -
|
| - if (ss->cipherSpecs != NULL) {
|
| - PORT_Free(ss->cipherSpecs);
|
| - }
|
| - ss->cipherSpecs = cs;
|
| - ss->sizeCipherSpecs = count * 3;
|
| -
|
| - /* fill in cipher specs for SSL2 cipher suites */
|
| - allowed = !ss->opt.enableSSL2 ? 0 : (ss->allowedByPolicy &
|
| - ss->chosenPreference & SSL_CB_IMPLEMENTED);
|
| - for (i = 0; i < ssl2_NUM_SUITES_IMPLEMENTED * 3; i += 3) {
|
| - const PRUint8 *hs = implementedCipherSuites + i;
|
| - int ok = allowed & (1U << hs[0]);
|
| - if (ok) {
|
| - cs[0] = hs[0];
|
| - cs[1] = hs[1];
|
| - cs[2] = hs[2];
|
| - cs += 3;
|
| - }
|
| - }
|
| -
|
| - /* now have SSL3 add its suites onto the end */
|
| - rv = ssl3_ConstructV2CipherSpecsHack(ss, cs, &final_count);
|
| -
|
| - /* adjust for any difference between first pass and second pass */
|
| - ss->sizeCipherSpecs -= (ssl3_count - final_count) * 3;
|
| -
|
| - return rv;
|
| -}
|
| -
|
| -/* This function is called immediately after ssl2_ConstructCipherSpecs()
|
| -** at the beginning of a handshake. It detects cases where a protocol
|
| -** (e.g. SSL2 or SSL3) is logically enabled, but all its cipher suites
|
| -** for that protocol have been disabled. If such cases, it clears the
|
| -** enable bit for the protocol. If no protocols remain enabled, or
|
| -** if no cipher suites are found, it sets the error code and returns
|
| -** SECFailure, otherwise it returns SECSuccess.
|
| -*/
|
| -static SECStatus
|
| -ssl2_CheckConfigSanity(sslSocket *ss)
|
| -{
|
| - unsigned int allowed;
|
| - int ssl3CipherCount = 0;
|
| - SECStatus rv;
|
| -
|
| - /* count the SSL2 and SSL3 enabled ciphers.
|
| - * if either is zero, clear the socket's enable for that protocol.
|
| - */
|
| - if (!ss->cipherSpecs)
|
| - goto disabled;
|
| -
|
| - allowed = ss->allowedByPolicy & ss->chosenPreference;
|
| - if (!allowed)
|
| - ss->opt.enableSSL2 = PR_FALSE; /* not really enabled if no ciphers */
|
| -
|
| - /* ssl3_config_match_init was called in ssl2_ConstructCipherSpecs(). */
|
| - /* Ask how many ssl3 CipherSuites were enabled. */
|
| - rv = ssl3_ConstructV2CipherSpecsHack(ss, NULL, &ssl3CipherCount);
|
| - if (rv != SECSuccess || ssl3CipherCount <= 0) {
|
| - /* SSL3/TLS not really enabled if no ciphers */
|
| - ss->vrange.min = SSL_LIBRARY_VERSION_NONE;
|
| - ss->vrange.max = SSL_LIBRARY_VERSION_NONE;
|
| - }
|
| -
|
| - if (!ss->opt.enableSSL2 && SSL3_ALL_VERSIONS_DISABLED(&ss->vrange)) {
|
| - SSL_DBG(("%d: SSL[%d]: Can't handshake! all versions disabled.",
|
| - SSL_GETPID(), ss->fd));
|
| - disabled:
|
| - PORT_SetError(SSL_ERROR_SSL_DISABLED);
|
| - return SECFailure;
|
| - }
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| - * Since this is a global (not per-socket) setting, we cannot use the
|
| - * HandshakeLock to protect this. Probably want a global lock.
|
| - */
|
| -SECStatus
|
| -ssl2_SetPolicy(PRInt32 which, PRInt32 policy)
|
| -{
|
| - PRUint32 bitMask;
|
| - SECStatus rv = SECSuccess;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - return SECFailure;
|
| - }
|
| -
|
| - if (policy == SSL_ALLOWED) {
|
| - allowedByPolicy |= bitMask;
|
| - maybeAllowedByPolicy |= bitMask;
|
| - } else if (policy == SSL_RESTRICTED) {
|
| - allowedByPolicy &= ~bitMask;
|
| - maybeAllowedByPolicy |= bitMask;
|
| - } else {
|
| - allowedByPolicy &= ~bitMask;
|
| - maybeAllowedByPolicy &= ~bitMask;
|
| - }
|
| - allowedByPolicy &= SSL_CB_IMPLEMENTED;
|
| - maybeAllowedByPolicy &= SSL_CB_IMPLEMENTED;
|
| -
|
| - policyWasSet = PR_TRUE;
|
| - return rv;
|
| -}
|
| -
|
| -SECStatus
|
| -ssl2_GetPolicy(PRInt32 which, PRInt32 *oPolicy)
|
| -{
|
| - PRUint32 bitMask;
|
| - PRInt32 policy;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - /* Caller assures oPolicy is not null. */
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - *oPolicy = SSL_NOT_ALLOWED;
|
| - return SECFailure;
|
| - }
|
| -
|
| - if (maybeAllowedByPolicy & bitMask) {
|
| - policy = (allowedByPolicy & bitMask) ? SSL_ALLOWED : SSL_RESTRICTED;
|
| - } else {
|
| - policy = SSL_NOT_ALLOWED;
|
| - }
|
| -
|
| - *oPolicy = policy;
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| - * Since this is a global (not per-socket) setting, we cannot use the
|
| - * HandshakeLock to protect this. Probably want a global lock.
|
| - * Called from SSL_CipherPrefSetDefault in sslsock.c
|
| - * These changes have no effect on any sslSockets already created.
|
| - */
|
| -SECStatus
|
| -ssl2_CipherPrefSetDefault(PRInt32 which, PRBool enabled)
|
| -{
|
| - PRUint32 bitMask;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - return SECFailure;
|
| - }
|
| -
|
| - if (enabled)
|
| - chosenPreference |= bitMask;
|
| - else
|
| - chosenPreference &= ~bitMask;
|
| - chosenPreference &= SSL_CB_IMPLEMENTED;
|
| -
|
| - return SECSuccess;
|
| -}
|
| -
|
| -SECStatus
|
| -ssl2_CipherPrefGetDefault(PRInt32 which, PRBool *enabled)
|
| -{
|
| - PRBool rv = PR_FALSE;
|
| - PRUint32 bitMask;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - *enabled = PR_FALSE;
|
| - return SECFailure;
|
| - }
|
| -
|
| - rv = (PRBool)((chosenPreference & bitMask) != 0);
|
| - *enabled = rv;
|
| - return SECSuccess;
|
| -}
|
| -
|
| -SECStatus
|
| -ssl2_CipherPrefSet(sslSocket *ss, PRInt32 which, PRBool enabled)
|
| -{
|
| - PRUint32 bitMask;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - return SECFailure;
|
| - }
|
| -
|
| - if (enabled)
|
| - ss->chosenPreference |= bitMask;
|
| - else
|
| - ss->chosenPreference &= ~bitMask;
|
| - ss->chosenPreference &= SSL_CB_IMPLEMENTED;
|
| -
|
| - return SECSuccess;
|
| -}
|
| -
|
| -SECStatus
|
| -ssl2_CipherPrefGet(sslSocket *ss, PRInt32 which, PRBool *enabled)
|
| -{
|
| - PRBool rv = PR_FALSE;
|
| - PRUint32 bitMask;
|
| -
|
| - which &= 0x000f;
|
| - bitMask = 1 << which;
|
| -
|
| - if (!(bitMask & SSL_CB_IMPLEMENTED)) {
|
| - PORT_SetError(SSL_ERROR_UNKNOWN_CIPHER_SUITE);
|
| - *enabled = PR_FALSE;
|
| - return SECFailure;
|
| - }
|
| -
|
| - rv = (PRBool)((ss->chosenPreference & bitMask) != 0);
|
| - *enabled = rv;
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/* copy global default policy into socket. */
|
| -void
|
| -ssl2_InitSocketPolicy(sslSocket *ss)
|
| -{
|
| - ss->allowedByPolicy = allowedByPolicy;
|
| - ss->maybeAllowedByPolicy = maybeAllowedByPolicy;
|
| - ss->chosenPreference = chosenPreference;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/* Called from ssl2_CreateSessionCypher(), which already holds handshake lock.
|
| - */
|
| -static SECStatus
|
| -ssl2_CreateMAC(sslSecurityInfo *sec, SECItem *readKey, SECItem *writeKey,
|
| - int cipherChoice)
|
| -{
|
| - switch (cipherChoice) {
|
| - case SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_WITH_MD5:
|
| - case SSL_CK_RC4_128_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC4_128_WITH_MD5:
|
| - case SSL_CK_DES_64_CBC_WITH_MD5:
|
| - case SSL_CK_DES_192_EDE3_CBC_WITH_MD5:
|
| - sec->hash = HASH_GetHashObject(HASH_AlgMD5);
|
| - if (SECITEM_CopyItem(0, &sec->sendSecret, writeKey) ||
|
| - SECITEM_CopyItem(0, &sec->rcvSecret, readKey)) {
|
| - return SECFailure;
|
| - }
|
| - break;
|
| -
|
| - default:
|
| - PORT_SetError(SSL_ERROR_NO_CYPHER_OVERLAP);
|
| - return SECFailure;
|
| - }
|
| - sec->hashcx = (*sec->hash->create)();
|
| - if (sec->hashcx == NULL)
|
| - return SECFailure;
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/************************************************************************
|
| - * All the Send functions below must acquire and release the socket's
|
| - * xmitBufLock.
|
| - */
|
| -
|
| -/* Called from all the Send* functions below. */
|
| -static SECStatus
|
| -ssl2_GetSendBuffer(sslSocket *ss, unsigned int len)
|
| -{
|
| - SECStatus rv = SECSuccess;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveXmitBufLock(ss));
|
| -
|
| - if (len < 128) {
|
| - len = 128;
|
| - }
|
| - if (len > ss->sec.ci.sendBuf.space) {
|
| - rv = sslBuffer_Grow(&ss->sec.ci.sendBuf, len);
|
| - if (rv != SECSuccess) {
|
| - SSL_DBG(("%d: SSL[%d]: ssl2_GetSendBuffer failed, tried to get %d bytes",
|
| - SSL_GETPID(), ss->fd, len));
|
| - rv = SECFailure;
|
| - }
|
| - }
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from:
|
| - * ssl2_ClientSetupSessionCypher() <- ssl2_HandleServerHelloMessage()
|
| - * ssl2_HandleRequestCertificate() <- ssl2_HandleMessage()
|
| - <- ssl_Do1stHandshake()
|
| - * ssl2_HandleMessage() <- ssl_Do1stHandshake()
|
| - * ssl2_HandleServerHelloMessage() <- ssl_Do1stHandshake()
|
| - after ssl2_BeginClientHandshake()
|
| - * ssl2_HandleClientHelloMessage() <- ssl_Do1stHandshake()
|
| - after ssl2_BeginServerHandshake()
|
| - *
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -int
|
| -ssl2_SendErrorMessage(sslSocket *ss, int error)
|
| -{
|
| - int rv;
|
| - PRUint8 msg[SSL_HL_ERROR_HBYTES];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - msg[0] = SSL_MT_ERROR;
|
| - msg[1] = MSB(error);
|
| - msg[2] = LSB(error);
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending error %d", SSL_GETPID(), ss->fd, error));
|
| -
|
| - ss->handshakeBegun = 1;
|
| - rv = (*ss->sec.send)(ss, msg, sizeof(msg), 0);
|
| - if (rv >= 0) {
|
| - rv = SECSuccess;
|
| - }
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_TryToFinish().
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static SECStatus
|
| -ssl2_SendClientFinishedMessage(sslSocket *ss)
|
| -{
|
| - SECStatus rv = SECSuccess;
|
| - int sent;
|
| - PRUint8 msg[1 + SSL_CONNECTIONID_BYTES];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - if (ss->sec.ci.sentFinished == 0) {
|
| - ss->sec.ci.sentFinished = 1;
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending client-finished",
|
| - SSL_GETPID(), ss->fd));
|
| -
|
| - msg[0] = SSL_MT_CLIENT_FINISHED;
|
| - PORT_Memcpy(msg + 1, ss->sec.ci.connectionID,
|
| - sizeof(ss->sec.ci.connectionID));
|
| -
|
| - DUMP_MSG(29, (ss, msg, 1 + sizeof(ss->sec.ci.connectionID)));
|
| - sent = (*ss->sec.send)(ss, msg, 1 + sizeof(ss->sec.ci.connectionID), 0);
|
| - rv = (sent >= 0) ? SECSuccess : (SECStatus)sent;
|
| - }
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from
|
| - * ssl2_HandleClientSessionKeyMessage() <- ssl2_HandleClientHelloMessage()
|
| - * ssl2_HandleClientHelloMessage() <- ssl_Do1stHandshake()
|
| - after ssl2_BeginServerHandshake()
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static SECStatus
|
| -ssl2_SendServerVerifyMessage(sslSocket *ss)
|
| -{
|
| - PRUint8 *msg;
|
| - int sendLen;
|
| - int sent;
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - sendLen = 1 + SSL_CHALLENGE_BYTES;
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv != SECSuccess) {
|
| - goto done;
|
| - }
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_SERVER_VERIFY;
|
| - PORT_Memcpy(msg + 1, ss->sec.ci.clientChallenge, SSL_CHALLENGE_BYTES);
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - sent = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| -
|
| - rv = (sent >= 0) ? SECSuccess : (SECStatus)sent;
|
| -
|
| -done:
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_TryToFinish().
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static SECStatus
|
| -ssl2_SendServerFinishedMessage(sslSocket *ss)
|
| -{
|
| - sslSessionID *sid;
|
| - PRUint8 *msg;
|
| - int sendLen, sent;
|
| - SECStatus rv = SECSuccess;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - if (ss->sec.ci.sentFinished == 0) {
|
| - ss->sec.ci.sentFinished = 1;
|
| - PORT_Assert(ss->sec.ci.sid != 0);
|
| - sid = ss->sec.ci.sid;
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending server-finished",
|
| - SSL_GETPID(), ss->fd));
|
| -
|
| - sendLen = 1 + sizeof(sid->u.ssl2.sessionID);
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv != SECSuccess) {
|
| - goto done;
|
| - }
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_SERVER_FINISHED;
|
| - PORT_Memcpy(msg + 1, sid->u.ssl2.sessionID,
|
| - sizeof(sid->u.ssl2.sessionID));
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - sent = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| -
|
| - if (sent < 0) {
|
| - /* If send failed, it is now a bogus session-id */
|
| - if (ss->sec.uncache)
|
| - (*ss->sec.uncache)(sid);
|
| - rv = (SECStatus)sent;
|
| - } else if (!ss->opt.noCache) {
|
| - if (sid->cached == never_cached) {
|
| - (*ss->sec.cache)(sid);
|
| - }
|
| - rv = SECSuccess;
|
| - }
|
| - ssl_FreeSID(sid);
|
| - ss->sec.ci.sid = 0;
|
| - }
|
| -done:
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_ClientSetupSessionCypher() <- ssl2_HandleServerHelloMessage()
|
| - * after ssl2_BeginClientHandshake()
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static SECStatus
|
| -ssl2_SendSessionKeyMessage(sslSocket *ss, int cipher, int keySize,
|
| - PRUint8 *ca, int caLen,
|
| - PRUint8 *ck, int ckLen,
|
| - PRUint8 *ek, int ekLen)
|
| -{
|
| - PRUint8 *msg;
|
| - int sendLen;
|
| - int sent;
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - sendLen = SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen + ekLen + caLen;
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending client-session-key",
|
| - SSL_GETPID(), ss->fd));
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_CLIENT_MASTER_KEY;
|
| - msg[1] = cipher;
|
| - msg[2] = MSB(keySize);
|
| - msg[3] = LSB(keySize);
|
| - msg[4] = MSB(ckLen);
|
| - msg[5] = LSB(ckLen);
|
| - msg[6] = MSB(ekLen);
|
| - msg[7] = LSB(ekLen);
|
| - msg[8] = MSB(caLen);
|
| - msg[9] = LSB(caLen);
|
| - PORT_Memcpy(msg + SSL_HL_CLIENT_MASTER_KEY_HBYTES, ck, ckLen);
|
| - PORT_Memcpy(msg + SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen, ek, ekLen);
|
| - PORT_Memcpy(msg + SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen + ekLen, ca, caLen);
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - sent = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| - rv = (sent >= 0) ? SECSuccess : (SECStatus)sent;
|
| -done:
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_TriggerNextMessage() <- ssl2_HandleMessage()
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static SECStatus
|
| -ssl2_SendCertificateRequestMessage(sslSocket *ss)
|
| -{
|
| - PRUint8 *msg;
|
| - int sent;
|
| - int sendLen;
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - sendLen = SSL_HL_REQUEST_CERTIFICATE_HBYTES + SSL_CHALLENGE_BYTES;
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending certificate request",
|
| - SSL_GETPID(), ss->fd));
|
| -
|
| - /* Generate random challenge for client to encrypt */
|
| - PK11_GenerateRandom(ss->sec.ci.serverChallenge, SSL_CHALLENGE_BYTES);
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_REQUEST_CERTIFICATE;
|
| - msg[1] = SSL_AT_MD5_WITH_RSA_ENCRYPTION;
|
| - PORT_Memcpy(msg + SSL_HL_REQUEST_CERTIFICATE_HBYTES,
|
| - ss->sec.ci.serverChallenge, SSL_CHALLENGE_BYTES);
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - sent = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| - rv = (sent >= 0) ? SECSuccess : (SECStatus)sent;
|
| -done:
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_HandleRequestCertificate() <- ssl2_HandleMessage()
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -static int
|
| -ssl2_SendCertificateResponseMessage(sslSocket *ss, SECItem *cert,
|
| - SECItem *encCode)
|
| -{
|
| - PRUint8 *msg;
|
| - int rv, sendLen;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - sendLen = SSL_HL_CLIENT_CERTIFICATE_HBYTES + encCode->len + cert->len;
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv)
|
| - goto done;
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending certificate response",
|
| - SSL_GETPID(), ss->fd));
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_CLIENT_CERTIFICATE;
|
| - msg[1] = SSL_CT_X509_CERTIFICATE;
|
| - msg[2] = MSB(cert->len);
|
| - msg[3] = LSB(cert->len);
|
| - msg[4] = MSB(encCode->len);
|
| - msg[5] = LSB(encCode->len);
|
| - PORT_Memcpy(msg + SSL_HL_CLIENT_CERTIFICATE_HBYTES, cert->data, cert->len);
|
| - PORT_Memcpy(msg + SSL_HL_CLIENT_CERTIFICATE_HBYTES + cert->len,
|
| - encCode->data, encCode->len);
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - rv = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| - if (rv >= 0) {
|
| - rv = SECSuccess;
|
| - }
|
| -done:
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| - return rv;
|
| -}
|
| -
|
| -/********************************************************************
|
| -** Send functions above this line must aquire & release the socket's
|
| -** xmitBufLock.
|
| -** All the ssl2_Send functions below this line are called vis ss->sec.send
|
| -** and require that the caller hold the xmitBufLock.
|
| -*/
|
| -
|
| -/*
|
| -** Called from ssl2_SendStream, ssl2_SendBlock, but not from ssl2_SendClear.
|
| -*/
|
| -static SECStatus
|
| -ssl2_CalcMAC(PRUint8 *result,
|
| - sslSecurityInfo *sec,
|
| - const PRUint8 *data,
|
| - unsigned int dataLen,
|
| - unsigned int paddingLen)
|
| -{
|
| - const PRUint8 *secret = sec->sendSecret.data;
|
| - unsigned int secretLen = sec->sendSecret.len;
|
| - unsigned long sequenceNumber = sec->sendSequence;
|
| - unsigned int nout;
|
| - PRUint8 seq[4];
|
| - PRUint8 padding[32]; /* XXX max blocksize? */
|
| -
|
| - if (!sec->hash || !sec->hash->length)
|
| - return SECSuccess;
|
| - if (!sec->hashcx)
|
| - return SECFailure;
|
| -
|
| - /* Reset hash function */
|
| - (*sec->hash->begin)(sec->hashcx);
|
| -
|
| - /* Feed hash the data */
|
| - (*sec->hash->update)(sec->hashcx, secret, secretLen);
|
| - (*sec->hash->update)(sec->hashcx, data, dataLen);
|
| - PORT_Memset(padding, paddingLen, paddingLen);
|
| - (*sec->hash->update)(sec->hashcx, padding, paddingLen);
|
| -
|
| - seq[0] = (PRUint8)(sequenceNumber >> 24);
|
| - seq[1] = (PRUint8)(sequenceNumber >> 16);
|
| - seq[2] = (PRUint8)(sequenceNumber >> 8);
|
| - seq[3] = (PRUint8)(sequenceNumber);
|
| -
|
| - PRINT_BUF(60, (0, "calc-mac secret:", secret, secretLen));
|
| - PRINT_BUF(60, (0, "calc-mac data:", data, dataLen));
|
| - PRINT_BUF(60, (0, "calc-mac padding:", padding, paddingLen));
|
| - PRINT_BUF(60, (0, "calc-mac seq:", seq, 4));
|
| -
|
| - (*sec->hash->update)(sec->hashcx, seq, 4);
|
| -
|
| - /* Get result */
|
| - (*sec->hash->end)(sec->hashcx, result, &nout, sec->hash->length);
|
| -
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| -** Maximum transmission amounts. These are tiny bit smaller than they
|
| -** need to be (they account for the MAC length plus some padding),
|
| -** assuming the MAC is 16 bytes long and the padding is a max of 7 bytes
|
| -** long. This gives an additional 9 bytes of slop to work within.
|
| -*/
|
| -#define MAX_STREAM_CYPHER_LEN 0x7fe0
|
| -#define MAX_BLOCK_CYPHER_LEN 0x3fe0
|
| -
|
| -/*
|
| -** Send some data in the clear.
|
| -** Package up data with the length header and send it.
|
| -**
|
| -** Return count of bytes successfully written, or negative number (failure).
|
| -*/
|
| -static PRInt32
|
| -ssl2_SendClear(sslSocket *ss, const PRUint8 *in, PRInt32 len, PRInt32 flags)
|
| -{
|
| - PRUint8 *out;
|
| - int rv;
|
| - unsigned int amount;
|
| - int count = 0;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveXmitBufLock(ss));
|
| -
|
| - SSL_TRC(10, ("%d: SSL[%d]: sending %d bytes in the clear",
|
| - SSL_GETPID(), ss->fd, len));
|
| - PRINT_BUF(50, (ss, "clear data:", (PRUint8 *)in, len));
|
| -
|
| - while (len) {
|
| - amount = PR_MIN(len, MAX_STREAM_CYPHER_LEN);
|
| - if (amount + 2 > ss->sec.writeBuf.space) {
|
| - rv = sslBuffer_Grow(&ss->sec.writeBuf, amount + 2);
|
| - if (rv != SECSuccess) {
|
| - count = rv;
|
| - break;
|
| - }
|
| - }
|
| - out = ss->sec.writeBuf.buf;
|
| -
|
| - /*
|
| - ** Construct message.
|
| - */
|
| - out[0] = 0x80 | MSB(amount);
|
| - out[1] = LSB(amount);
|
| - PORT_Memcpy(&out[2], in, amount);
|
| -
|
| - /* Now send the data */
|
| - rv = ssl_DefSend(ss, out, amount + 2, flags & ~ssl_SEND_FLAG_MASK);
|
| - if (rv < 0) {
|
| - if (PORT_GetError() == PR_WOULD_BLOCK_ERROR) {
|
| - rv = 0;
|
| - } else {
|
| - /* Return short write if some data already went out... */
|
| - if (count == 0)
|
| - count = rv;
|
| - break;
|
| - }
|
| - }
|
| -
|
| - if ((unsigned)rv < (amount + 2)) {
|
| - /* Short write. Save the data and return. */
|
| - if (ssl_SaveWriteData(ss, out + rv, amount + 2 - rv) ==
|
| - SECFailure) {
|
| - count = SECFailure;
|
| - } else {
|
| - count += amount;
|
| - ss->sec.sendSequence++;
|
| - }
|
| - break;
|
| - }
|
| -
|
| - ss->sec.sendSequence++;
|
| - in += amount;
|
| - count += amount;
|
| - len -= amount;
|
| - }
|
| -
|
| - return count;
|
| -}
|
| -
|
| -/*
|
| -** Send some data, when using a stream cipher. Stream ciphers have a
|
| -** block size of 1. Package up the data with the length header
|
| -** and send it.
|
| -*/
|
| -static PRInt32
|
| -ssl2_SendStream(sslSocket *ss, const PRUint8 *in, PRInt32 len, PRInt32 flags)
|
| -{
|
| - PRUint8 *out;
|
| - int rv;
|
| - int count = 0;
|
| -
|
| - int amount;
|
| - PRUint8 macLen;
|
| - int nout;
|
| - unsigned int buflen;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveXmitBufLock(ss));
|
| -
|
| - SSL_TRC(10, ("%d: SSL[%d]: sending %d bytes using stream cipher",
|
| - SSL_GETPID(), ss->fd, len));
|
| - PRINT_BUF(50, (ss, "clear data:", (PRUint8 *)in, len));
|
| -
|
| - while (len) {
|
| - ssl_GetSpecReadLock(ss); /*************************************/
|
| -
|
| - macLen = ss->sec.hash->length;
|
| - amount = PR_MIN(len, MAX_STREAM_CYPHER_LEN);
|
| - buflen = amount + 2 + macLen;
|
| - if (buflen > ss->sec.writeBuf.space) {
|
| - rv = sslBuffer_Grow(&ss->sec.writeBuf, buflen);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - }
|
| - out = ss->sec.writeBuf.buf;
|
| - nout = amount + macLen;
|
| - out[0] = 0x80 | MSB(nout);
|
| - out[1] = LSB(nout);
|
| -
|
| - /* Calculate MAC */
|
| - rv = ssl2_CalcMAC(out + 2, /* put MAC here */
|
| - &ss->sec,
|
| - in, amount, /* input addr & length */
|
| - 0); /* no padding */
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - /* Encrypt MAC */
|
| - rv = (*ss->sec.enc)(ss->sec.writecx, out + 2, &nout, macLen, out + 2, macLen);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - /* Encrypt data from caller */
|
| - rv = (*ss->sec.enc)(ss->sec.writecx, out + 2 + macLen, &nout, amount, in, amount);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - ssl_ReleaseSpecReadLock(ss); /*************************************/
|
| -
|
| - PRINT_BUF(50, (ss, "encrypted data:", out, buflen));
|
| -
|
| - rv = ssl_DefSend(ss, out, buflen, flags & ~ssl_SEND_FLAG_MASK);
|
| - if (rv < 0) {
|
| - if (PORT_GetError() == PR_WOULD_BLOCK_ERROR) {
|
| - SSL_TRC(50, ("%d: SSL[%d]: send stream would block, "
|
| - "saving data",
|
| - SSL_GETPID(), ss->fd));
|
| - rv = 0;
|
| - } else {
|
| - SSL_TRC(10, ("%d: SSL[%d]: send stream error %d",
|
| - SSL_GETPID(), ss->fd, PORT_GetError()));
|
| - /* Return short write if some data already went out... */
|
| - if (count == 0)
|
| - count = rv;
|
| - goto done;
|
| - }
|
| - }
|
| -
|
| - if ((unsigned)rv < buflen) {
|
| - /* Short write. Save the data and return. */
|
| - if (ssl_SaveWriteData(ss, out + rv, buflen - rv) == SECFailure) {
|
| - count = SECFailure;
|
| - } else {
|
| - count += amount;
|
| - ss->sec.sendSequence++;
|
| - }
|
| - goto done;
|
| - }
|
| -
|
| - ss->sec.sendSequence++;
|
| - in += amount;
|
| - count += amount;
|
| - len -= amount;
|
| - }
|
| -
|
| -done:
|
| - return count;
|
| -
|
| -loser:
|
| - ssl_ReleaseSpecReadLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -/*
|
| -** Send some data, when using a block cipher. Package up the data with
|
| -** the length header and send it.
|
| -*/
|
| -/* XXX assumes blocksize is > 7 */
|
| -static PRInt32
|
| -ssl2_SendBlock(sslSocket *ss, const PRUint8 *in, PRInt32 len, PRInt32 flags)
|
| -{
|
| - PRUint8 *out; /* begining of output buffer. */
|
| - PRUint8 *op; /* next output byte goes here. */
|
| - int rv; /* value from funcs we called. */
|
| - int count = 0; /* this function's return value. */
|
| -
|
| - unsigned int hlen; /* output record hdr len, 2 or 3 */
|
| - unsigned int macLen; /* MAC is this many bytes long. */
|
| - int amount; /* of plaintext to go in record. */
|
| - unsigned int padding; /* add this many padding byte. */
|
| - int nout; /* ciphertext size after header. */
|
| - unsigned int buflen; /* size of generated record. */
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveXmitBufLock(ss));
|
| -
|
| - SSL_TRC(10, ("%d: SSL[%d]: sending %d bytes using block cipher",
|
| - SSL_GETPID(), ss->fd, len));
|
| - PRINT_BUF(50, (ss, "clear data:", in, len));
|
| -
|
| - while (len) {
|
| - ssl_GetSpecReadLock(ss); /*************************************/
|
| -
|
| - macLen = ss->sec.hash->length;
|
| - /* Figure out how much to send, including mac and padding */
|
| - amount = PR_MIN(len, MAX_BLOCK_CYPHER_LEN);
|
| - nout = amount + macLen;
|
| - padding = nout & (ss->sec.blockSize - 1);
|
| - if (padding) {
|
| - hlen = 3;
|
| - padding = ss->sec.blockSize - padding;
|
| - nout += padding;
|
| - } else {
|
| - hlen = 2;
|
| - }
|
| - buflen = hlen + nout;
|
| - if (buflen > ss->sec.writeBuf.space) {
|
| - rv = sslBuffer_Grow(&ss->sec.writeBuf, buflen);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - }
|
| - out = ss->sec.writeBuf.buf;
|
| -
|
| - /* Construct header */
|
| - op = out;
|
| - if (padding) {
|
| - *op++ = MSB(nout);
|
| - *op++ = LSB(nout);
|
| - *op++ = padding;
|
| - } else {
|
| - *op++ = 0x80 | MSB(nout);
|
| - *op++ = LSB(nout);
|
| - }
|
| -
|
| - /* Calculate MAC */
|
| - rv = ssl2_CalcMAC(op, /* MAC goes here. */
|
| - &ss->sec,
|
| - in, amount, /* intput addr, len */
|
| - padding);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| - op += macLen;
|
| -
|
| - /* Copy in the input data */
|
| - /* XXX could eliminate the copy by folding it into the encryption */
|
| - PORT_Memcpy(op, in, amount);
|
| - op += amount;
|
| - if (padding) {
|
| - PORT_Memset(op, padding, padding);
|
| - op += padding;
|
| - }
|
| -
|
| - /* Encrypt result */
|
| - rv = (*ss->sec.enc)(ss->sec.writecx, out + hlen, &nout, buflen - hlen,
|
| - out + hlen, op - (out + hlen));
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - ssl_ReleaseSpecReadLock(ss); /*************************************/
|
| -
|
| - PRINT_BUF(50, (ss, "final xmit data:", out, op - out));
|
| -
|
| - rv = ssl_DefSend(ss, out, op - out, flags & ~ssl_SEND_FLAG_MASK);
|
| - if (rv < 0) {
|
| - if (PORT_GetError() == PR_WOULD_BLOCK_ERROR) {
|
| - rv = 0;
|
| - } else {
|
| - SSL_TRC(10, ("%d: SSL[%d]: send block error %d",
|
| - SSL_GETPID(), ss->fd, PORT_GetError()));
|
| - /* Return short write if some data already went out... */
|
| - if (count == 0)
|
| - count = rv;
|
| - goto done;
|
| - }
|
| - }
|
| -
|
| - if (rv < (op - out)) {
|
| - /* Short write. Save the data and return. */
|
| - if (ssl_SaveWriteData(ss, out + rv, op - out - rv) == SECFailure) {
|
| - count = SECFailure;
|
| - } else {
|
| - count += amount;
|
| - ss->sec.sendSequence++;
|
| - }
|
| - goto done;
|
| - }
|
| -
|
| - ss->sec.sendSequence++;
|
| - in += amount;
|
| - count += amount;
|
| - len -= amount;
|
| - }
|
| -
|
| -done:
|
| - return count;
|
| -
|
| -loser:
|
| - ssl_ReleaseSpecReadLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -/*
|
| -** Called from: ssl2_HandleServerHelloMessage,
|
| -** ssl2_HandleClientSessionKeyMessage,
|
| -** ssl2_HandleClientHelloMessage,
|
| -**
|
| -*/
|
| -static void
|
| -ssl2_UseEncryptedSendFunc(sslSocket *ss)
|
| -{
|
| - ssl_GetXmitBufLock(ss);
|
| - PORT_Assert(ss->sec.hashcx != 0);
|
| -
|
| - ss->gs.encrypted = 1;
|
| - ss->sec.send = (ss->sec.blockSize > 1) ? ssl2_SendBlock : ssl2_SendStream;
|
| - ssl_ReleaseXmitBufLock(ss);
|
| -}
|
| -
|
| -/* Called while initializing socket in ssl_CreateSecurityInfo().
|
| -** This function allows us to keep the name of ssl2_SendClear static.
|
| -*/
|
| -void
|
| -ssl2_UseClearSendFunc(sslSocket *ss)
|
| -{
|
| - ss->sec.send = ssl2_SendClear;
|
| -}
|
| -
|
| -/************************************************************************
|
| -** END of Send functions. *
|
| -*************************************************************************/
|
| -
|
| -/***********************************************************************
|
| - * For SSL3, this gathers in and handles records/messages until either
|
| - * the handshake is complete or application data is available.
|
| - *
|
| - * For SSL2, this gathers in only the next SSLV2 record.
|
| - *
|
| - * Called from ssl_Do1stHandshake() via function pointer ss->handshake.
|
| - * Caller must hold handshake lock.
|
| - * This function acquires and releases the RecvBufLock.
|
| - *
|
| - * returns SECSuccess for success.
|
| - * returns SECWouldBlock when that value is returned by ssl2_GatherRecord() or
|
| - * ssl3_GatherCompleteHandshake().
|
| - * returns SECFailure on all other errors.
|
| - *
|
| - * The gather functions called by ssl_GatherRecord1stHandshake are expected
|
| - * to return values interpreted as follows:
|
| - * 1 : the function completed without error.
|
| - * 0 : the function read EOF.
|
| - * -1 : read error, or PR_WOULD_BLOCK_ERROR, or handleRecord error.
|
| - * -2 : the function wants ssl_GatherRecord1stHandshake to be called again
|
| - * immediately, by ssl_Do1stHandshake.
|
| - *
|
| - * This code is similar to, and easily confused with, DoRecv() in sslsecur.c
|
| - *
|
| - * This function is called from ssl_Do1stHandshake().
|
| - * The following functions put ssl_GatherRecord1stHandshake into ss->handshake:
|
| - * ssl2_HandleMessage
|
| - * ssl2_HandleVerifyMessage
|
| - * ssl2_HandleServerHelloMessage
|
| - * ssl2_BeginClientHandshake
|
| - * ssl2_HandleClientSessionKeyMessage
|
| - * ssl3_RestartHandshakeAfterCertReq
|
| - * ssl3_RestartHandshakeAfterServerCert
|
| - * ssl2_HandleClientHelloMessage
|
| - * ssl2_BeginServerHandshake
|
| - */
|
| -SECStatus
|
| -ssl_GatherRecord1stHandshake(sslSocket *ss)
|
| -{
|
| - int rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - /* The special case DTLS logic is needed here because the SSL/TLS
|
| - * version wants to auto-detect SSL2 vs. SSL3 on the initial handshake
|
| - * (ss->version == 0) but with DTLS it gets confused, so we force the
|
| - * SSL3 version.
|
| - */
|
| - if ((ss->version >= SSL_LIBRARY_VERSION_3_0) || IS_DTLS(ss)) {
|
| - /* Wait for handshake to complete, or application data to arrive. */
|
| - rv = ssl3_GatherCompleteHandshake(ss, 0);
|
| - } else {
|
| - /* See if we have a complete record */
|
| - rv = ssl2_GatherRecord(ss, 0);
|
| - }
|
| - SSL_TRC(10, ("%d: SSL[%d]: handshake gathering, rv=%d",
|
| - SSL_GETPID(), ss->fd, rv));
|
| -
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - if (rv <= 0) {
|
| - if (rv == SECWouldBlock) {
|
| - /* Progress is blocked waiting for callback completion. */
|
| - SSL_TRC(10, ("%d: SSL[%d]: handshake blocked (need %d)",
|
| - SSL_GETPID(), ss->fd, ss->gs.remainder));
|
| - return SECWouldBlock;
|
| - }
|
| - if (rv == 0) {
|
| - /* EOF. Loser */
|
| - PORT_SetError(PR_END_OF_FILE_ERROR);
|
| - }
|
| - return SECFailure; /* rv is < 0 here. */
|
| - }
|
| -
|
| - SSL_TRC(10, ("%d: SSL[%d]: got handshake record of %d bytes",
|
| - SSL_GETPID(), ss->fd, ss->gs.recordLen));
|
| -
|
| - ss->handshake = 0; /* makes ssl_Do1stHandshake call ss->nextHandshake.*/
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/* Called from ssl2_ServerSetupSessionCypher()
|
| - * ssl2_ClientSetupSessionCypher()
|
| - */
|
| -static SECStatus
|
| -ssl2_FillInSID(sslSessionID *sid,
|
| - int cipher,
|
| - PRUint8 *keyData,
|
| - int keyLen,
|
| - PRUint8 *ca,
|
| - int caLen,
|
| - int keyBits,
|
| - int secretKeyBits,
|
| - SSLSignType authAlgorithm,
|
| - PRUint32 authKeyBits,
|
| - SSLKEAType keaType,
|
| - PRUint32 keaKeyBits)
|
| -{
|
| - PORT_Assert(sid->references == 1);
|
| - PORT_Assert(sid->cached == never_cached);
|
| - PORT_Assert(sid->u.ssl2.masterKey.data == 0);
|
| - PORT_Assert(sid->u.ssl2.cipherArg.data == 0);
|
| -
|
| - sid->version = SSL_LIBRARY_VERSION_2;
|
| -
|
| - sid->u.ssl2.cipherType = cipher;
|
| - sid->u.ssl2.masterKey.data = (PRUint8 *)PORT_Alloc(keyLen);
|
| - if (!sid->u.ssl2.masterKey.data) {
|
| - return SECFailure;
|
| - }
|
| - PORT_Memcpy(sid->u.ssl2.masterKey.data, keyData, keyLen);
|
| - sid->u.ssl2.masterKey.len = keyLen;
|
| - sid->u.ssl2.keyBits = keyBits;
|
| - sid->u.ssl2.secretKeyBits = secretKeyBits;
|
| - sid->authAlgorithm = authAlgorithm;
|
| - sid->authKeyBits = authKeyBits;
|
| - sid->keaType = keaType;
|
| - sid->keaKeyBits = keaKeyBits;
|
| - sid->lastAccessTime = sid->creationTime = ssl_Time();
|
| - sid->expirationTime = sid->creationTime + ssl_sid_timeout;
|
| -
|
| - if (caLen) {
|
| - sid->u.ssl2.cipherArg.data = (PRUint8 *)PORT_Alloc(caLen);
|
| - if (!sid->u.ssl2.cipherArg.data) {
|
| - return SECFailure;
|
| - }
|
| - sid->u.ssl2.cipherArg.len = caLen;
|
| - PORT_Memcpy(sid->u.ssl2.cipherArg.data, ca, caLen);
|
| - }
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| -** Construct session keys given the masterKey (tied to the session-id),
|
| -** the client's challenge and the server's nonce.
|
| -**
|
| -** Called from ssl2_CreateSessionCypher() <-
|
| -*/
|
| -static SECStatus
|
| -ssl2_ProduceKeys(sslSocket *ss,
|
| - SECItem *readKey,
|
| - SECItem *writeKey,
|
| - SECItem *masterKey,
|
| - PRUint8 *challenge,
|
| - PRUint8 *nonce,
|
| - int cipherType)
|
| -{
|
| - PK11Context *cx = 0;
|
| - unsigned nkm = 0; /* number of hashes to generate key mat. */
|
| - unsigned nkd = 0; /* size of readKey and writeKey. */
|
| - unsigned part;
|
| - unsigned i;
|
| - unsigned off;
|
| - SECStatus rv;
|
| - PRUint8 countChar;
|
| - PRUint8 km[3 * 16]; /* buffer for key material. */
|
| -
|
| - readKey->data = 0;
|
| - writeKey->data = 0;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - rv = SECSuccess;
|
| - cx = PK11_CreateDigestContext(SEC_OID_MD5);
|
| - if (cx == NULL) {
|
| - ssl_MapLowLevelError(SSL_ERROR_MD5_DIGEST_FAILURE);
|
| - return SECFailure;
|
| - }
|
| -
|
| - nkm = ssl_Specs[cipherType].nkm;
|
| - nkd = ssl_Specs[cipherType].nkd;
|
| -
|
| - readKey->data = (PRUint8 *)PORT_Alloc(nkd);
|
| - if (!readKey->data)
|
| - goto loser;
|
| - readKey->len = nkd;
|
| -
|
| - writeKey->data = (PRUint8 *)PORT_Alloc(nkd);
|
| - if (!writeKey->data)
|
| - goto loser;
|
| - writeKey->len = nkd;
|
| -
|
| - /* Produce key material */
|
| - countChar = '0';
|
| - for (i = 0, off = 0; i < nkm; i++, off += 16) {
|
| - rv = PK11_DigestBegin(cx);
|
| - rv |= PK11_DigestOp(cx, masterKey->data, masterKey->len);
|
| - rv |= PK11_DigestOp(cx, &countChar, 1);
|
| - rv |= PK11_DigestOp(cx, challenge, SSL_CHALLENGE_BYTES);
|
| - rv |= PK11_DigestOp(cx, nonce, SSL_CONNECTIONID_BYTES);
|
| - rv |= PK11_DigestFinal(cx, km + off, &part, MD5_LENGTH);
|
| - if (rv != SECSuccess) {
|
| - ssl_MapLowLevelError(SSL_ERROR_MD5_DIGEST_FAILURE);
|
| - rv = SECFailure;
|
| - goto loser;
|
| - }
|
| - countChar++;
|
| - }
|
| -
|
| - /* Produce keys */
|
| - PORT_Memcpy(readKey->data, km, nkd);
|
| - PORT_Memcpy(writeKey->data, km + nkd, nkd);
|
| -
|
| -loser:
|
| - PK11_DestroyContext(cx, PR_TRUE);
|
| - return rv;
|
| -}
|
| -
|
| -/* Called from ssl2_ServerSetupSessionCypher()
|
| -** <- ssl2_HandleClientSessionKeyMessage()
|
| -** <- ssl2_HandleClientHelloMessage()
|
| -** and from ssl2_ClientSetupSessionCypher()
|
| -** <- ssl2_HandleServerHelloMessage()
|
| -*/
|
| -static SECStatus
|
| -ssl2_CreateSessionCypher(sslSocket *ss, sslSessionID *sid, PRBool isClient)
|
| -{
|
| - SECItem *rk = NULL;
|
| - SECItem *wk = NULL;
|
| - SECItem *param;
|
| - SECStatus rv;
|
| - int cipherType = sid->u.ssl2.cipherType;
|
| - PK11SlotInfo *slot = NULL;
|
| - CK_MECHANISM_TYPE mechanism;
|
| - SECItem readKey;
|
| - SECItem writeKey;
|
| -
|
| - void *readcx = 0;
|
| - void *writecx = 0;
|
| - readKey.data = 0;
|
| - writeKey.data = 0;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - if (ss->sec.ci.sid == 0)
|
| - goto sec_loser; /* don't crash if asserts are off */
|
| -
|
| - /* Trying to cut down on all these switch statements that should be tables.
|
| - * So, test cipherType once, here, and then use tables below.
|
| - */
|
| - switch (cipherType) {
|
| - case SSL_CK_RC4_128_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC4_128_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_WITH_MD5:
|
| - case SSL_CK_DES_64_CBC_WITH_MD5:
|
| - case SSL_CK_DES_192_EDE3_CBC_WITH_MD5:
|
| - break;
|
| -
|
| - default:
|
| - SSL_DBG(("%d: SSL[%d]: ssl2_CreateSessionCypher: unknown cipher=%d",
|
| - SSL_GETPID(), ss->fd, cipherType));
|
| - PORT_SetError(isClient ? SSL_ERROR_BAD_SERVER : SSL_ERROR_BAD_CLIENT);
|
| - goto sec_loser;
|
| - }
|
| -
|
| - rk = isClient ? &readKey : &writeKey;
|
| - wk = isClient ? &writeKey : &readKey;
|
| -
|
| - /* Produce the keys for this session */
|
| - rv = ssl2_ProduceKeys(ss, &readKey, &writeKey, &sid->u.ssl2.masterKey,
|
| - ss->sec.ci.clientChallenge, ss->sec.ci.connectionID,
|
| - cipherType);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| - PRINT_BUF(7, (ss, "Session read-key: ", rk->data, rk->len));
|
| - PRINT_BUF(7, (ss, "Session write-key: ", wk->data, wk->len));
|
| -
|
| - PORT_Memcpy(ss->sec.ci.readKey, readKey.data, readKey.len);
|
| - PORT_Memcpy(ss->sec.ci.writeKey, writeKey.data, writeKey.len);
|
| - ss->sec.ci.keySize = readKey.len;
|
| -
|
| - /* Setup the MAC */
|
| - rv = ssl2_CreateMAC(&ss->sec, rk, wk, cipherType);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - /* First create the session key object */
|
| - SSL_TRC(3, ("%d: SSL[%d]: using %s", SSL_GETPID(), ss->fd,
|
| - ssl_cipherName[cipherType]));
|
| -
|
| - mechanism = ssl_Specs[cipherType].mechanism;
|
| -
|
| - /* set destructer before we call loser... */
|
| - ss->sec.destroy = (void (*)(void *, PRBool))PK11_DestroyContext;
|
| - slot = PK11_GetBestSlot(mechanism, ss->pkcs11PinArg);
|
| - if (slot == NULL)
|
| - goto loser;
|
| -
|
| - param = PK11_ParamFromIV(mechanism, &sid->u.ssl2.cipherArg);
|
| - if (param == NULL)
|
| - goto loser;
|
| - readcx = PK11_CreateContextByRawKey(slot, mechanism, PK11_OriginUnwrap,
|
| - CKA_DECRYPT, rk, param,
|
| - ss->pkcs11PinArg);
|
| - SECITEM_FreeItem(param, PR_TRUE);
|
| - if (readcx == NULL)
|
| - goto loser;
|
| -
|
| - /* build the client context */
|
| - param = PK11_ParamFromIV(mechanism, &sid->u.ssl2.cipherArg);
|
| - if (param == NULL)
|
| - goto loser;
|
| - writecx = PK11_CreateContextByRawKey(slot, mechanism, PK11_OriginUnwrap,
|
| - CKA_ENCRYPT, wk, param,
|
| - ss->pkcs11PinArg);
|
| - SECITEM_FreeItem(param, PR_TRUE);
|
| - if (writecx == NULL)
|
| - goto loser;
|
| - PK11_FreeSlot(slot);
|
| -
|
| - rv = SECSuccess;
|
| - ss->sec.enc = (SSLCipher)PK11_CipherOp;
|
| - ss->sec.dec = (SSLCipher)PK11_CipherOp;
|
| - ss->sec.readcx = (void *)readcx;
|
| - ss->sec.writecx = (void *)writecx;
|
| - ss->sec.blockSize = ssl_Specs[cipherType].blockSize;
|
| - ss->sec.blockShift = ssl_Specs[cipherType].blockShift;
|
| - ss->sec.cipherType = sid->u.ssl2.cipherType;
|
| - ss->sec.keyBits = sid->u.ssl2.keyBits;
|
| - ss->sec.secretKeyBits = sid->u.ssl2.secretKeyBits;
|
| - goto done;
|
| -
|
| -loser:
|
| - if (ss->sec.destroy) {
|
| - if (readcx)
|
| - (*ss->sec.destroy)(readcx, PR_TRUE);
|
| - if (writecx)
|
| - (*ss->sec.destroy)(writecx, PR_TRUE);
|
| - }
|
| - ss->sec.destroy = NULL;
|
| - if (slot)
|
| - PK11_FreeSlot(slot);
|
| -
|
| -sec_loser:
|
| - rv = SECFailure;
|
| -
|
| -done:
|
| - if (rk) {
|
| - SECITEM_ZfreeItem(rk, PR_FALSE);
|
| - }
|
| - if (wk) {
|
| - SECITEM_ZfreeItem(wk, PR_FALSE);
|
| - }
|
| - return rv;
|
| -}
|
| -
|
| -/*
|
| -** Setup the server ciphers given information from a CLIENT-MASTER-KEY
|
| -** message.
|
| -** "ss" pointer to the ssl-socket object
|
| -** "cipher" the cipher type to use
|
| -** "keyBits" the size of the final cipher key
|
| -** "ck" the clear-key data
|
| -** "ckLen" the number of bytes of clear-key data
|
| -** "ek" the encrypted-key data
|
| -** "ekLen" the number of bytes of encrypted-key data
|
| -** "ca" the cipher-arg data
|
| -** "caLen" the number of bytes of cipher-arg data
|
| -**
|
| -** The MASTER-KEY is constructed by first decrypting the encrypted-key
|
| -** data. This produces the SECRET-KEY-DATA. The MASTER-KEY is composed by
|
| -** concatenating the clear-key data with the SECRET-KEY-DATA. This code
|
| -** checks to make sure that the client didn't send us an improper amount
|
| -** of SECRET-KEY-DATA (it restricts the length of that data to match the
|
| -** spec).
|
| -**
|
| -** Called from ssl2_HandleClientSessionKeyMessage().
|
| -*/
|
| -static SECStatus
|
| -ssl2_ServerSetupSessionCypher(sslSocket *ss, int cipher, unsigned int keyBits,
|
| - PRUint8 *ck, unsigned int ckLen,
|
| - PRUint8 *ek, unsigned int ekLen,
|
| - PRUint8 *ca, unsigned int caLen)
|
| -{
|
| - PRUint8 *dk = NULL; /* decrypted master key */
|
| - sslSessionID *sid;
|
| - sslServerCerts *sc = ss->serverCerts + kt_rsa;
|
| - PRUint8 *kbuf = 0; /* buffer for RSA decrypted data. */
|
| - unsigned int ddLen; /* length of RSA decrypted data in kbuf */
|
| - unsigned int keySize;
|
| - unsigned int dkLen; /* decrypted key length in bytes */
|
| - int modulusLen;
|
| - SECStatus rv;
|
| - PRUint16 allowed; /* cipher kinds enabled and allowed by policy */
|
| - PRUint8 mkbuf[SSL_MAX_MASTER_KEY_BYTES];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveRecvBufLock(ss));
|
| - PORT_Assert((sc->SERVERKEY != 0));
|
| - PORT_Assert((ss->sec.ci.sid != 0));
|
| - sid = ss->sec.ci.sid;
|
| -
|
| - /* Trying to cut down on all these switch statements that should be tables.
|
| - * So, test cipherType once, here, and then use tables below.
|
| - */
|
| - switch (cipher) {
|
| - case SSL_CK_RC4_128_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC4_128_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_WITH_MD5:
|
| - case SSL_CK_DES_64_CBC_WITH_MD5:
|
| - case SSL_CK_DES_192_EDE3_CBC_WITH_MD5:
|
| - break;
|
| -
|
| - default:
|
| - SSL_DBG(("%d: SSL[%d]: ssl2_ServerSetupSessionCypher: unknown cipher=%d",
|
| - SSL_GETPID(), ss->fd, cipher));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - allowed = ss->allowedByPolicy & ss->chosenPreference & SSL_CB_IMPLEMENTED;
|
| - if (!(allowed & (1 << cipher))) {
|
| - /* client chose a kind we don't allow! */
|
| - SSL_DBG(("%d: SSL[%d]: disallowed cipher=%d",
|
| - SSL_GETPID(), ss->fd, cipher));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - keySize = ssl_Specs[cipher].keyLen;
|
| - if (keyBits != keySize * BPB) {
|
| - SSL_DBG(("%d: SSL[%d]: invalid master secret key length=%d (bits)!",
|
| - SSL_GETPID(), ss->fd, keyBits));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - if (ckLen != ssl_Specs[cipher].pubLen) {
|
| - SSL_DBG(("%d: SSL[%d]: invalid clear key length, ckLen=%d (bytes)!",
|
| - SSL_GETPID(), ss->fd, ckLen));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - if (caLen != ssl_Specs[cipher].ivLen) {
|
| - SSL_DBG(("%d: SSL[%d]: invalid key args length, caLen=%d (bytes)!",
|
| - SSL_GETPID(), ss->fd, caLen));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - modulusLen = PK11_GetPrivateModulusLen(sc->SERVERKEY);
|
| - if (modulusLen < 0) {
|
| - /* XXX If the key is bad, then PK11_PubDecryptRaw will fail below. */
|
| - modulusLen = ekLen;
|
| - }
|
| - if (ekLen > (unsigned int)modulusLen || ekLen + ckLen < keySize) {
|
| - SSL_DBG(("%d: SSL[%d]: invalid encrypted key length, ekLen=%d (bytes)!",
|
| - SSL_GETPID(), ss->fd, ekLen));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto loser;
|
| - }
|
| -
|
| - /* allocate the buffer to hold the decrypted portion of the key. */
|
| - kbuf = (PRUint8 *)PORT_Alloc(modulusLen);
|
| - if (!kbuf) {
|
| - goto loser;
|
| - }
|
| - dkLen = keySize - ckLen;
|
| - dk = kbuf + modulusLen - dkLen;
|
| -
|
| - /* Decrypt encrypted half of the key.
|
| - ** NOTE: PK11_PubDecryptRaw will barf on a non-RSA key. This is
|
| - ** desired behavior here.
|
| - */
|
| - rv = PK11_PubDecryptRaw(sc->SERVERKEY, kbuf, &ddLen, modulusLen, ek, ekLen);
|
| - if (rv != SECSuccess)
|
| - goto hide_loser;
|
| -
|
| - /* Is the length of the decrypted data (ddLen) the expected value? */
|
| - if (modulusLen != ddLen)
|
| - goto hide_loser;
|
| -
|
| - /* Cheaply verify that PKCS#1 was used to format the encryption block */
|
| - if ((kbuf[0] != 0x00) || (kbuf[1] != 0x02) || (dk[-1] != 0x00)) {
|
| - SSL_DBG(("%d: SSL[%d]: strange encryption block",
|
| - SSL_GETPID(), ss->fd));
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto hide_loser;
|
| - }
|
| -
|
| - /* Make sure we're not subject to a version rollback attack. */
|
| - if (!SSL3_ALL_VERSIONS_DISABLED(&ss->vrange)) {
|
| - static const PRUint8 threes[8] = { 0x03, 0x03, 0x03, 0x03,
|
| - 0x03, 0x03, 0x03, 0x03 };
|
| -
|
| - if (PORT_Memcmp(dk - 8 - 1, threes, 8) == 0) {
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| - goto hide_loser;
|
| - }
|
| - }
|
| - if (0) {
|
| - hide_loser:
|
| - /* Defense against the Bleichenbacher attack.
|
| - * Provide the client with NO CLUES that the decrypted master key
|
| - * was erroneous. Don't send any error messages.
|
| - * Instead, Generate a completely bogus master key .
|
| - */
|
| - PK11_GenerateRandom(dk, dkLen);
|
| - }
|
| -
|
| - /*
|
| - ** Construct master key out of the pieces.
|
| - */
|
| - if (ckLen) {
|
| - PORT_Memcpy(mkbuf, ck, ckLen);
|
| - }
|
| - PORT_Memcpy(mkbuf + ckLen, dk, dkLen);
|
| -
|
| - /* Fill in session-id */
|
| - rv = ssl2_FillInSID(sid, cipher, mkbuf, keySize, ca, caLen,
|
| - keyBits, keyBits - (ckLen << 3),
|
| - ss->sec.authAlgorithm, ss->sec.authKeyBits,
|
| - ss->sec.keaType, ss->sec.keaKeyBits);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - /* Create session ciphers */
|
| - rv = ssl2_CreateSessionCypher(ss, sid, PR_FALSE);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - SSL_TRC(1, ("%d: SSL[%d]: server, using %s cipher, clear=%d total=%d",
|
| - SSL_GETPID(), ss->fd, ssl_cipherName[cipher],
|
| - ckLen << 3, keySize << 3));
|
| - rv = SECSuccess;
|
| - goto done;
|
| -
|
| -loser:
|
| - rv = SECFailure;
|
| -
|
| -done:
|
| - PORT_Free(kbuf);
|
| - return rv;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/*
|
| -** Rewrite the incoming cipher specs, comparing to list of specs we support,
|
| -** (ss->cipherSpecs) and eliminating anything we don't support
|
| -**
|
| -* Note: Our list may contain SSL v3 ciphers.
|
| -* We MUST NOT match on any of those.
|
| -* Fortunately, this is easy to detect because SSLv3 ciphers have zero
|
| -* in the first byte, and none of the SSLv2 ciphers do.
|
| -*
|
| -* Called from ssl2_HandleClientHelloMessage().
|
| -* Returns the number of bytes of "qualified cipher specs",
|
| -* which is typically a multiple of 3, but will be zero if there are none.
|
| -*/
|
| -static int
|
| -ssl2_QualifyCypherSpecs(sslSocket *ss,
|
| - PRUint8 *cs, /* cipher specs in client hello msg. */
|
| - int csLen)
|
| -{
|
| - PRUint8 *ms;
|
| - PRUint8 *hs;
|
| - PRUint8 *qs;
|
| - int mc;
|
| - int hc;
|
| - PRUint8 qualifiedSpecs[ssl2_NUM_SUITES_IMPLEMENTED * 3];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveRecvBufLock(ss));
|
| -
|
| - if (!ss->cipherSpecs) {
|
| - SECStatus rv = ssl2_ConstructCipherSpecs(ss);
|
| - if (rv != SECSuccess || !ss->cipherSpecs)
|
| - return 0;
|
| - }
|
| -
|
| - PRINT_BUF(10, (ss, "specs from client:", cs, csLen));
|
| - qs = qualifiedSpecs;
|
| - ms = ss->cipherSpecs;
|
| - for (mc = ss->sizeCipherSpecs; mc > 0; mc -= 3, ms += 3) {
|
| - if (ms[0] == 0)
|
| - continue;
|
| - for (hs = cs, hc = csLen; hc > 0; hs += 3, hc -= 3) {
|
| - if ((hs[0] == ms[0]) &&
|
| - (hs[1] == ms[1]) &&
|
| - (hs[2] == ms[2])) {
|
| - /* Copy this cipher spec into the "keep" section */
|
| - qs[0] = hs[0];
|
| - qs[1] = hs[1];
|
| - qs[2] = hs[2];
|
| - qs += 3;
|
| - break;
|
| - }
|
| - }
|
| - }
|
| - hc = qs - qualifiedSpecs;
|
| - PRINT_BUF(10, (ss, "qualified specs from client:", qualifiedSpecs, hc));
|
| - PORT_Memcpy(cs, qualifiedSpecs, hc);
|
| - return hc;
|
| -}
|
| -
|
| -/*
|
| -** Pick the best cipher we can find, given the array of server cipher
|
| -** specs. Returns cipher number (e.g. SSL_CK_*), or -1 for no overlap.
|
| -** If successful, stores the master key size (bytes) in *pKeyLen.
|
| -**
|
| -** This is correct only for the client side, but presently
|
| -** this function is only called from
|
| -** ssl2_ClientSetupSessionCypher() <- ssl2_HandleServerHelloMessage()
|
| -**
|
| -** Note that most servers only return a single cipher suite in their
|
| -** ServerHello messages. So, the code below for finding the "best" cipher
|
| -** suite usually has only one choice. The client and server should send
|
| -** their cipher suite lists sorted in descending order by preference.
|
| -*/
|
| -static int
|
| -ssl2_ChooseSessionCypher(sslSocket *ss,
|
| - int hc, /* number of cs's in hs. */
|
| - PRUint8 *hs, /* server hello's cipher suites. */
|
| - int *pKeyLen) /* out: sym key size in bytes. */
|
| -{
|
| - PRUint8 *ms;
|
| - unsigned int i;
|
| - int bestKeySize;
|
| - int bestRealKeySize;
|
| - int bestCypher;
|
| - int keySize;
|
| - int realKeySize;
|
| - PRUint8 *ohs = hs;
|
| - const PRUint8 *preferred;
|
| - static const PRUint8 noneSuch[3] = { 0, 0, 0 };
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveRecvBufLock(ss));
|
| -
|
| - if (!ss->cipherSpecs) {
|
| - SECStatus rv = ssl2_ConstructCipherSpecs(ss);
|
| - if (rv != SECSuccess || !ss->cipherSpecs)
|
| - goto loser;
|
| - }
|
| -
|
| - if (!ss->preferredCipher) {
|
| - unsigned int allowed = ss->allowedByPolicy & ss->chosenPreference &
|
| - SSL_CB_IMPLEMENTED;
|
| - if (allowed) {
|
| - preferred = implementedCipherSuites;
|
| - for (i = ssl2_NUM_SUITES_IMPLEMENTED; i > 0; --i) {
|
| - if (0 != (allowed & (1U << preferred[0]))) {
|
| - ss->preferredCipher = preferred;
|
| - break;
|
| - }
|
| - preferred += 3;
|
| - }
|
| - }
|
| - }
|
| - preferred = ss->preferredCipher ? ss->preferredCipher : noneSuch;
|
| - /*
|
| - ** Scan list of ciphers received from peer and look for a match in
|
| - ** our list.
|
| - * Note: Our list may contain SSL v3 ciphers.
|
| - * We MUST NOT match on any of those.
|
| - * Fortunately, this is easy to detect because SSLv3 ciphers have zero
|
| - * in the first byte, and none of the SSLv2 ciphers do.
|
| - */
|
| - bestKeySize = bestRealKeySize = 0;
|
| - bestCypher = -1;
|
| - while (--hc >= 0) {
|
| - for (i = 0, ms = ss->cipherSpecs; i < ss->sizeCipherSpecs; i += 3, ms += 3) {
|
| - if ((hs[0] == preferred[0]) &&
|
| - (hs[1] == preferred[1]) &&
|
| - (hs[2] == preferred[2]) &&
|
| - hs[0] != 0) {
|
| - /* Pick this cipher immediately! */
|
| - *pKeyLen = (((hs[1] << 8) | hs[2]) + 7) >> 3;
|
| - return hs[0];
|
| - }
|
| - if ((hs[0] == ms[0]) && (hs[1] == ms[1]) && (hs[2] == ms[2]) &&
|
| - hs[0] != 0) {
|
| - /* Found a match */
|
| -
|
| - /* Use secret keySize to determine which cipher is best */
|
| - realKeySize = (hs[1] << 8) | hs[2];
|
| - switch (hs[0]) {
|
| - case SSL_CK_RC4_128_EXPORT40_WITH_MD5:
|
| - case SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5:
|
| - keySize = 40;
|
| - break;
|
| - default:
|
| - keySize = realKeySize;
|
| - break;
|
| - }
|
| - if (keySize > bestKeySize) {
|
| - bestCypher = hs[0];
|
| - bestKeySize = keySize;
|
| - bestRealKeySize = realKeySize;
|
| - }
|
| - }
|
| - }
|
| - hs += 3;
|
| - }
|
| - if (bestCypher < 0) {
|
| - /*
|
| - ** No overlap between server and client. Re-examine server list
|
| - ** to see what kind of ciphers it does support so that we can set
|
| - ** the error code appropriately.
|
| - */
|
| - if ((ohs[0] == SSL_CK_RC4_128_WITH_MD5) ||
|
| - (ohs[0] == SSL_CK_RC2_128_CBC_WITH_MD5)) {
|
| - PORT_SetError(SSL_ERROR_US_ONLY_SERVER);
|
| - } else if ((ohs[0] == SSL_CK_RC4_128_EXPORT40_WITH_MD5) ||
|
| - (ohs[0] == SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5)) {
|
| - PORT_SetError(SSL_ERROR_EXPORT_ONLY_SERVER);
|
| - } else {
|
| - PORT_SetError(SSL_ERROR_NO_CYPHER_OVERLAP);
|
| - }
|
| - SSL_DBG(("%d: SSL[%d]: no cipher overlap", SSL_GETPID(), ss->fd));
|
| - goto loser;
|
| - }
|
| - *pKeyLen = (bestRealKeySize + 7) >> 3;
|
| - return bestCypher;
|
| -
|
| -loser:
|
| - return -1;
|
| -}
|
| -
|
| -static SECStatus
|
| -ssl2_ClientHandleServerCert(sslSocket *ss, PRUint8 *certData, int certLen)
|
| -{
|
| - CERTCertificate *cert = NULL;
|
| - SECItem certItem;
|
| -
|
| - certItem.data = certData;
|
| - certItem.len = certLen;
|
| -
|
| - /* decode the certificate */
|
| - cert = CERT_NewTempCertificate(ss->dbHandle, &certItem, NULL,
|
| - PR_FALSE, PR_TRUE);
|
| -
|
| - if (cert == NULL) {
|
| - SSL_DBG(("%d: SSL[%d]: decode of server certificate fails",
|
| - SSL_GETPID(), ss->fd));
|
| - PORT_SetError(SSL_ERROR_BAD_CERTIFICATE);
|
| - return SECFailure;
|
| - }
|
| -
|
| -#ifdef TRACE
|
| - {
|
| - if (ssl_trace >= 1) {
|
| - char *issuer;
|
| - char *subject;
|
| - issuer = CERT_NameToAscii(&cert->issuer);
|
| - subject = CERT_NameToAscii(&cert->subject);
|
| - SSL_TRC(1, ("%d: server certificate issuer: '%s'",
|
| - SSL_GETPID(), issuer ? issuer : "OOPS"));
|
| - SSL_TRC(1, ("%d: server name: '%s'",
|
| - SSL_GETPID(), subject ? subject : "OOPS"));
|
| - PORT_Free(issuer);
|
| - PORT_Free(subject);
|
| - }
|
| - }
|
| -#endif
|
| -
|
| - ss->sec.peerCert = cert;
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| - * Format one block of data for public/private key encryption using
|
| - * the rules defined in PKCS #1. SSL2 does this itself to handle the
|
| - * rollback detection.
|
| - */
|
| -#define RSA_BLOCK_MIN_PAD_LEN 8
|
| -#define RSA_BLOCK_FIRST_OCTET 0x00
|
| -#define RSA_BLOCK_AFTER_PAD_OCTET 0x00
|
| -#define RSA_BLOCK_PUBLIC_OCTET 0x02
|
| -unsigned char *
|
| -ssl_FormatSSL2Block(unsigned modulusLen, SECItem *data)
|
| -{
|
| - unsigned char *block;
|
| - unsigned char *bp;
|
| - int padLen;
|
| - SECStatus rv;
|
| - int i;
|
| -
|
| - if (modulusLen < data->len + (3 + RSA_BLOCK_MIN_PAD_LEN)) {
|
| - PORT_SetError(SEC_ERROR_BAD_KEY);
|
| - return NULL;
|
| - }
|
| - block = (unsigned char *)PORT_Alloc(modulusLen);
|
| - if (block == NULL)
|
| - return NULL;
|
| -
|
| - bp = block;
|
| -
|
| - /*
|
| - * All RSA blocks start with two octets:
|
| - * 0x00 || BlockType
|
| - */
|
| - *bp++ = RSA_BLOCK_FIRST_OCTET;
|
| - *bp++ = RSA_BLOCK_PUBLIC_OCTET;
|
| -
|
| - /*
|
| - * 0x00 || BT || Pad || 0x00 || ActualData
|
| - * 1 1 padLen 1 data->len
|
| - * Pad is all non-zero random bytes.
|
| - */
|
| - padLen = modulusLen - data->len - 3;
|
| - PORT_Assert(padLen >= RSA_BLOCK_MIN_PAD_LEN);
|
| - rv = PK11_GenerateRandom(bp, padLen);
|
| - if (rv == SECFailure)
|
| - goto loser;
|
| - /* replace all the 'zero' bytes */
|
| - for (i = 0; i < padLen; i++) {
|
| - while (bp[i] == RSA_BLOCK_AFTER_PAD_OCTET) {
|
| - rv = PK11_GenerateRandom(bp + i, 1);
|
| - if (rv == SECFailure)
|
| - goto loser;
|
| - }
|
| - }
|
| - bp += padLen;
|
| - *bp++ = RSA_BLOCK_AFTER_PAD_OCTET;
|
| - PORT_Memcpy(bp, data->data, data->len);
|
| -
|
| - return block;
|
| -loser:
|
| - if (block)
|
| - PORT_Free(block);
|
| - return NULL;
|
| -}
|
| -
|
| -/*
|
| -** Given the server's public key and cipher specs, generate a session key
|
| -** that is ready to use for encrypting/decrypting the byte stream. At
|
| -** the same time, generate the SSL_MT_CLIENT_MASTER_KEY message and
|
| -** send it to the server.
|
| -**
|
| -** Called from ssl2_HandleServerHelloMessage()
|
| -*/
|
| -static SECStatus
|
| -ssl2_ClientSetupSessionCypher(sslSocket *ss, PRUint8 *cs, int csLen)
|
| -{
|
| - sslSessionID *sid;
|
| - PRUint8 *ca; /* points to iv data, or NULL if none. */
|
| - PRUint8 *ekbuf = 0;
|
| - CERTCertificate *cert = 0;
|
| - SECKEYPublicKey *serverKey = 0;
|
| - unsigned modulusLen = 0;
|
| - SECStatus rv;
|
| - int cipher;
|
| - int keyLen; /* cipher symkey size in bytes. */
|
| - int ckLen; /* publicly reveal this many bytes of key. */
|
| - int caLen; /* length of IV data at *ca. */
|
| - int nc;
|
| -
|
| - unsigned char *eblock; /* holds unencrypted PKCS#1 formatted key. */
|
| - SECItem rek; /* holds portion of symkey to be encrypted. */
|
| -
|
| - PRUint8 keyData[SSL_MAX_MASTER_KEY_BYTES];
|
| - PRUint8 iv[8];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - eblock = NULL;
|
| -
|
| - sid = ss->sec.ci.sid;
|
| - PORT_Assert(sid != 0);
|
| -
|
| - cert = ss->sec.peerCert;
|
| -
|
| - serverKey = CERT_ExtractPublicKey(cert);
|
| - if (!serverKey) {
|
| - SSL_DBG(("%d: SSL[%d]: extract public key failed: error=%d",
|
| - SSL_GETPID(), ss->fd, PORT_GetError()));
|
| - PORT_SetError(SSL_ERROR_BAD_CERTIFICATE);
|
| - rv = SECFailure;
|
| - goto loser2;
|
| - }
|
| -
|
| - ss->sec.authAlgorithm = ssl_sign_rsa;
|
| - ss->sec.keaType = ssl_kea_rsa;
|
| - ss->sec.keaKeyBits =
|
| - ss->sec.authKeyBits = SECKEY_PublicKeyStrengthInBits(serverKey);
|
| -
|
| - /* Choose a compatible cipher with the server */
|
| - nc = csLen / 3;
|
| - cipher = ssl2_ChooseSessionCypher(ss, nc, cs, &keyLen);
|
| - if (cipher < 0) {
|
| - /* ssl2_ChooseSessionCypher has set error code. */
|
| - ssl2_SendErrorMessage(ss, SSL_PE_NO_CYPHERS);
|
| - goto loser;
|
| - }
|
| -
|
| - /* Generate the random keys */
|
| - PK11_GenerateRandom(keyData, sizeof(keyData));
|
| -
|
| - /*
|
| - ** Next, carve up the keys into clear and encrypted portions. The
|
| - ** clear data is taken from the start of keyData and the encrypted
|
| - ** portion from the remainder. Note that each of these portions is
|
| - ** carved in half, one half for the read-key and one for the
|
| - ** write-key.
|
| - */
|
| - ca = 0;
|
| -
|
| - /* We know that cipher is a legit value here, because
|
| - * ssl2_ChooseSessionCypher doesn't return bogus values.
|
| - */
|
| - ckLen = ssl_Specs[cipher].pubLen; /* cleartext key length. */
|
| - caLen = ssl_Specs[cipher].ivLen; /* IV length. */
|
| - if (caLen) {
|
| - PORT_Assert(sizeof iv >= caLen);
|
| - PK11_GenerateRandom(iv, caLen);
|
| - ca = iv;
|
| - }
|
| -
|
| - /* Fill in session-id */
|
| - rv = ssl2_FillInSID(sid, cipher, keyData, keyLen,
|
| - ca, caLen, keyLen << 3, (keyLen - ckLen) << 3,
|
| - ss->sec.authAlgorithm, ss->sec.authKeyBits,
|
| - ss->sec.keaType, ss->sec.keaKeyBits);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - SSL_TRC(1, ("%d: SSL[%d]: client, using %s cipher, clear=%d total=%d",
|
| - SSL_GETPID(), ss->fd, ssl_cipherName[cipher],
|
| - ckLen << 3, keyLen << 3));
|
| -
|
| - /* Now setup read and write ciphers */
|
| - rv = ssl2_CreateSessionCypher(ss, sid, PR_TRUE);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - /*
|
| - ** Fill in the encryption buffer with some random bytes. Then
|
| - ** copy in the portion of the session key we are encrypting.
|
| - */
|
| - modulusLen = SECKEY_PublicKeyStrength(serverKey);
|
| - rek.data = keyData + ckLen;
|
| - rek.len = keyLen - ckLen;
|
| - eblock = ssl_FormatSSL2Block(modulusLen, &rek);
|
| - if (eblock == NULL)
|
| - goto loser;
|
| -
|
| - /* Set up the padding for version 2 rollback detection. */
|
| - /* XXX We should really use defines here */
|
| - if (!SSL3_ALL_VERSIONS_DISABLED(&ss->vrange)) {
|
| - PORT_Assert((modulusLen - rek.len) > 12);
|
| - PORT_Memset(eblock + modulusLen - rek.len - 8 - 1, 0x03, 8);
|
| - }
|
| - ekbuf = (PRUint8 *)PORT_Alloc(modulusLen);
|
| - if (!ekbuf)
|
| - goto loser;
|
| - PRINT_BUF(10, (ss, "master key encryption block:",
|
| - eblock, modulusLen));
|
| -
|
| - /* Encrypt ekitem */
|
| - rv = PK11_PubEncryptRaw(serverKey, ekbuf, eblock, modulusLen,
|
| - ss->pkcs11PinArg);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - /* Now we have everything ready to send */
|
| - rv = ssl2_SendSessionKeyMessage(ss, cipher, keyLen << 3, ca, caLen,
|
| - keyData, ckLen, ekbuf, modulusLen);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - rv = SECSuccess;
|
| - goto done;
|
| -
|
| -loser:
|
| - rv = SECFailure;
|
| -
|
| -loser2:
|
| -done:
|
| - PORT_Memset(keyData, 0, sizeof(keyData));
|
| - PORT_ZFree(ekbuf, modulusLen);
|
| - PORT_ZFree(eblock, modulusLen);
|
| - SECKEY_DestroyPublicKey(serverKey);
|
| - return rv;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/*
|
| - * Called from ssl2_HandleMessage in response to SSL_MT_SERVER_FINISHED message.
|
| - * Caller holds recvBufLock and handshakeLock
|
| - */
|
| -static void
|
| -ssl2_ClientRegSessionID(sslSocket *ss, PRUint8 *s)
|
| -{
|
| - sslSessionID *sid = ss->sec.ci.sid;
|
| -
|
| - /* Record entry in nonce cache */
|
| - if (sid->peerCert == NULL) {
|
| - PORT_Memcpy(sid->u.ssl2.sessionID, s, sizeof(sid->u.ssl2.sessionID));
|
| - sid->peerCert = CERT_DupCertificate(ss->sec.peerCert);
|
| - }
|
| - if (!ss->opt.noCache && sid->cached == never_cached)
|
| - (*ss->sec.cache)(sid);
|
| -}
|
| -
|
| -/* Called from ssl2_HandleMessage() */
|
| -static SECStatus
|
| -ssl2_TriggerNextMessage(sslSocket *ss)
|
| -{
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - if ((ss->sec.ci.requiredElements & CIS_HAVE_CERTIFICATE) &&
|
| - !(ss->sec.ci.sentElements & CIS_HAVE_CERTIFICATE)) {
|
| - ss->sec.ci.sentElements |= CIS_HAVE_CERTIFICATE;
|
| - rv = ssl2_SendCertificateRequestMessage(ss);
|
| - return rv;
|
| - }
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/* See if it's time to send our finished message, or if the handshakes are
|
| -** complete. Send finished message if appropriate.
|
| -** Returns SECSuccess unless anything goes wrong.
|
| -**
|
| -** Called from ssl2_HandleMessage,
|
| -** ssl2_HandleVerifyMessage
|
| -** ssl2_HandleServerHelloMessage
|
| -** ssl2_HandleClientSessionKeyMessage
|
| -*/
|
| -static SECStatus
|
| -ssl2_TryToFinish(sslSocket *ss)
|
| -{
|
| - SECStatus rv;
|
| - char e, ef;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - e = ss->sec.ci.elements;
|
| - ef = e | CIS_HAVE_FINISHED;
|
| - if ((ef & ss->sec.ci.requiredElements) == ss->sec.ci.requiredElements) {
|
| - if (ss->sec.isServer) {
|
| - /* Send server finished message if we already didn't */
|
| - rv = ssl2_SendServerFinishedMessage(ss);
|
| - } else {
|
| - /* Send client finished message if we already didn't */
|
| - rv = ssl2_SendClientFinishedMessage(ss);
|
| - }
|
| - if (rv != SECSuccess) {
|
| - return rv;
|
| - }
|
| - if ((e & ss->sec.ci.requiredElements) == ss->sec.ci.requiredElements) {
|
| - /* Totally finished */
|
| - ss->handshake = 0;
|
| - return SECSuccess;
|
| - }
|
| - }
|
| - return SECSuccess;
|
| -}
|
| -
|
| -/*
|
| -** Called from ssl2_HandleRequestCertificate
|
| -*/
|
| -static SECStatus
|
| -ssl2_SignResponse(sslSocket *ss,
|
| - SECKEYPrivateKey *key,
|
| - SECItem *response)
|
| -{
|
| - SGNContext *sgn = NULL;
|
| - PRUint8 *challenge;
|
| - unsigned int len;
|
| - SECStatus rv = SECFailure;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - challenge = ss->sec.ci.serverChallenge;
|
| - len = ss->sec.ci.serverChallengeLen;
|
| -
|
| - /* Sign the expected data... */
|
| - sgn = SGN_NewContext(SEC_OID_PKCS1_MD5_WITH_RSA_ENCRYPTION, key);
|
| - if (!sgn)
|
| - goto done;
|
| - rv = SGN_Begin(sgn);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| - rv = SGN_Update(sgn, ss->sec.ci.readKey, ss->sec.ci.keySize);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| - rv = SGN_Update(sgn, ss->sec.ci.writeKey, ss->sec.ci.keySize);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| - rv = SGN_Update(sgn, challenge, len);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| - rv = SGN_Update(sgn, ss->sec.peerCert->derCert.data,
|
| - ss->sec.peerCert->derCert.len);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| - rv = SGN_End(sgn, response);
|
| - if (rv != SECSuccess)
|
| - goto done;
|
| -
|
| -done:
|
| - SGN_DestroyContext(sgn, PR_TRUE);
|
| - return rv == SECSuccess ? SECSuccess : SECFailure;
|
| -}
|
| -
|
| -/*
|
| -** Try to handle a request-certificate message. Get client's certificate
|
| -** and private key and sign a message for the server to see.
|
| -** Caller must hold handshakeLock
|
| -**
|
| -** Called from ssl2_HandleMessage().
|
| -*/
|
| -static int
|
| -ssl2_HandleRequestCertificate(sslSocket *ss)
|
| -{
|
| - CERTCertificate *cert = NULL; /* app-selected client cert. */
|
| - SECKEYPrivateKey *key = NULL; /* priv key for cert. */
|
| - SECStatus rv;
|
| - SECItem response;
|
| - int ret = 0;
|
| - PRUint8 authType;
|
| -
|
| - /*
|
| - * These things all need to be initialized before we can "goto loser".
|
| - */
|
| - response.data = NULL;
|
| -
|
| - /* get challenge info from connectionInfo */
|
| - authType = ss->sec.ci.authType;
|
| -
|
| - if (authType != SSL_AT_MD5_WITH_RSA_ENCRYPTION) {
|
| - SSL_TRC(7, ("%d: SSL[%d]: unsupported auth type 0x%x", SSL_GETPID(),
|
| - ss->fd, authType));
|
| - goto no_cert_error;
|
| - }
|
| -
|
| - /* Get certificate and private-key from client */
|
| - if (!ss->getClientAuthData) {
|
| - SSL_TRC(7, ("%d: SSL[%d]: client doesn't support client-auth",
|
| - SSL_GETPID(), ss->fd));
|
| - goto no_cert_error;
|
| - }
|
| - ret = (*ss->getClientAuthData)(ss->getClientAuthDataArg, ss->fd,
|
| - NULL, &cert, &key);
|
| - if (ret == SECWouldBlock) {
|
| - PORT_SetError(SSL_ERROR_FEATURE_NOT_SUPPORTED_FOR_SSL2);
|
| - ret = -1;
|
| - goto loser;
|
| - }
|
| -
|
| - if (ret) {
|
| - goto no_cert_error;
|
| - }
|
| -
|
| - /* check what the callback function returned */
|
| - if ((!cert) || (!key)) {
|
| - /* we are missing either the key or cert */
|
| - if (cert) {
|
| - /* got a cert, but no key - free it */
|
| - CERT_DestroyCertificate(cert);
|
| - cert = NULL;
|
| - }
|
| - if (key) {
|
| - /* got a key, but no cert - free it */
|
| - SECKEY_DestroyPrivateKey(key);
|
| - key = NULL;
|
| - }
|
| - goto no_cert_error;
|
| - }
|
| -
|
| - rv = ssl2_SignResponse(ss, key, &response);
|
| - if (rv != SECSuccess) {
|
| - ret = -1;
|
| - goto loser;
|
| - }
|
| -
|
| - /* Send response message */
|
| - ret = ssl2_SendCertificateResponseMessage(ss, &cert->derCert, &response);
|
| -
|
| - /* Now, remember the cert we sent. But first, forget any previous one. */
|
| - if (ss->sec.localCert) {
|
| - CERT_DestroyCertificate(ss->sec.localCert);
|
| - }
|
| - ss->sec.localCert = CERT_DupCertificate(cert);
|
| - PORT_Assert(!ss->sec.ci.sid->localCert);
|
| - if (ss->sec.ci.sid->localCert) {
|
| - CERT_DestroyCertificate(ss->sec.ci.sid->localCert);
|
| - }
|
| - ss->sec.ci.sid->localCert = cert;
|
| - cert = NULL;
|
| -
|
| - goto done;
|
| -
|
| -no_cert_error:
|
| - SSL_TRC(7, ("%d: SSL[%d]: no certificate (ret=%d)", SSL_GETPID(),
|
| - ss->fd, ret));
|
| - ret = ssl2_SendErrorMessage(ss, SSL_PE_NO_CERTIFICATE);
|
| -
|
| -loser:
|
| -done:
|
| - if (cert) {
|
| - CERT_DestroyCertificate(cert);
|
| - }
|
| - if (key) {
|
| - SECKEY_DestroyPrivateKey(key);
|
| - }
|
| - if (response.data) {
|
| - PORT_Free(response.data);
|
| - }
|
| -
|
| - return ret;
|
| -}
|
| -
|
| -/*
|
| -** Called from ssl2_HandleMessage for SSL_MT_CLIENT_CERTIFICATE message.
|
| -** Caller must hold HandshakeLock and RecvBufLock, since cd and response
|
| -** are contained in the gathered input data.
|
| -*/
|
| -static SECStatus
|
| -ssl2_HandleClientCertificate(sslSocket *ss,
|
| - PRUint8 certType, /* XXX unused */
|
| - PRUint8 *cd,
|
| - unsigned int cdLen,
|
| - PRUint8 *response,
|
| - unsigned int responseLen)
|
| -{
|
| - CERTCertificate *cert = NULL;
|
| - SECKEYPublicKey *pubKey = NULL;
|
| - VFYContext *vfy = NULL;
|
| - SECItem *derCert;
|
| - SECStatus rv = SECFailure;
|
| - SECItem certItem;
|
| - SECItem rep;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - PORT_Assert(ss->opt.noLocks || ssl_HaveRecvBufLock(ss));
|
| -
|
| - /* Extract the certificate */
|
| - certItem.data = cd;
|
| - certItem.len = cdLen;
|
| -
|
| - cert = CERT_NewTempCertificate(ss->dbHandle, &certItem, NULL,
|
| - PR_FALSE, PR_TRUE);
|
| - if (cert == NULL) {
|
| - goto loser;
|
| - }
|
| -
|
| - /* save the certificate, since the auth routine will need it */
|
| - ss->sec.peerCert = cert;
|
| -
|
| - /* Extract the public key */
|
| - pubKey = CERT_ExtractPublicKey(cert);
|
| - if (!pubKey)
|
| - goto loser;
|
| -
|
| - /* Verify the response data... */
|
| - rep.data = response;
|
| - rep.len = responseLen;
|
| - /* SSL 2.0 only supports RSA certs, so we don't have to worry about
|
| - * DSA here. */
|
| - vfy = VFY_CreateContext(pubKey, &rep, SEC_OID_PKCS1_RSA_ENCRYPTION,
|
| - ss->pkcs11PinArg);
|
| - if (!vfy)
|
| - goto loser;
|
| - rv = VFY_Begin(vfy);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - rv = VFY_Update(vfy, ss->sec.ci.readKey, ss->sec.ci.keySize);
|
| - if (rv)
|
| - goto loser;
|
| - rv = VFY_Update(vfy, ss->sec.ci.writeKey, ss->sec.ci.keySize);
|
| - if (rv)
|
| - goto loser;
|
| - rv = VFY_Update(vfy, ss->sec.ci.serverChallenge, SSL_CHALLENGE_BYTES);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - derCert = &ss->serverCerts[kt_rsa].serverCert->derCert;
|
| - rv = VFY_Update(vfy, derCert->data, derCert->len);
|
| - if (rv)
|
| - goto loser;
|
| - rv = VFY_End(vfy);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - /* Now ask the server application if it likes the certificate... */
|
| - rv = (SECStatus)(*ss->authCertificate)(ss->authCertificateArg,
|
| - ss->fd, PR_TRUE, PR_TRUE);
|
| - /* Hey, it liked it. */
|
| - if (SECSuccess == rv)
|
| - goto done;
|
| -
|
| -loser:
|
| - ss->sec.peerCert = NULL;
|
| - CERT_DestroyCertificate(cert);
|
| -
|
| -done:
|
| - VFY_DestroyContext(vfy, PR_TRUE);
|
| - SECKEY_DestroyPublicKey(pubKey);
|
| - return rv;
|
| -}
|
| -
|
| -/*
|
| -** Handle remaining messages between client/server. Process finished
|
| -** messages from either side and any authentication requests.
|
| -** This should only be called for SSLv2 handshake messages,
|
| -** not for application data records.
|
| -** Caller must hold handshake lock.
|
| -**
|
| -** Called from ssl_Do1stHandshake().
|
| -**
|
| -*/
|
| -static SECStatus
|
| -ssl2_HandleMessage(sslSocket *ss)
|
| -{
|
| - PRUint8 *data;
|
| - PRUint8 *cid;
|
| - unsigned len, certType, certLen, responseLen;
|
| - int rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - data = ss->gs.buf.buf + ss->gs.recordOffset;
|
| -
|
| - if (ss->gs.recordLen < 1) {
|
| - goto bad_peer;
|
| - }
|
| - SSL_TRC(3, ("%d: SSL[%d]: received %d message",
|
| - SSL_GETPID(), ss->fd, data[0]));
|
| - DUMP_MSG(29, (ss, data, ss->gs.recordLen));
|
| -
|
| - switch (data[0]) {
|
| - case SSL_MT_CLIENT_FINISHED:
|
| - if (ss->sec.ci.elements & CIS_HAVE_FINISHED) {
|
| - SSL_DBG(("%d: SSL[%d]: dup client-finished message",
|
| - SSL_GETPID(), ss->fd));
|
| - goto bad_peer;
|
| - }
|
| -
|
| - /* See if nonce matches */
|
| - len = ss->gs.recordLen - 1;
|
| - cid = data + 1;
|
| - if ((len != sizeof(ss->sec.ci.connectionID)) ||
|
| - (PORT_Memcmp(ss->sec.ci.connectionID, cid, len) != 0)) {
|
| - SSL_DBG(("%d: SSL[%d]: bad connection-id", SSL_GETPID(), ss->fd));
|
| - PRINT_BUF(5, (ss, "sent connection-id",
|
| - ss->sec.ci.connectionID,
|
| - sizeof(ss->sec.ci.connectionID)));
|
| - PRINT_BUF(5, (ss, "rcvd connection-id", cid, len));
|
| - goto bad_peer;
|
| - }
|
| -
|
| - SSL_TRC(5, ("%d: SSL[%d]: got client finished, waiting for 0x%d",
|
| - SSL_GETPID(), ss->fd,
|
| - ss->sec.ci.requiredElements ^ ss->sec.ci.elements));
|
| - ss->sec.ci.elements |= CIS_HAVE_FINISHED;
|
| - break;
|
| -
|
| - case SSL_MT_SERVER_FINISHED:
|
| - if (ss->sec.ci.elements & CIS_HAVE_FINISHED) {
|
| - SSL_DBG(("%d: SSL[%d]: dup server-finished message",
|
| - SSL_GETPID(), ss->fd));
|
| - goto bad_peer;
|
| - }
|
| -
|
| - if (ss->gs.recordLen - 1 != SSL2_SESSIONID_BYTES) {
|
| - SSL_DBG(("%d: SSL[%d]: bad server-finished message, len=%d",
|
| - SSL_GETPID(), ss->fd, ss->gs.recordLen));
|
| - goto bad_peer;
|
| - }
|
| - ssl2_ClientRegSessionID(ss, data + 1);
|
| - SSL_TRC(5, ("%d: SSL[%d]: got server finished, waiting for 0x%d",
|
| - SSL_GETPID(), ss->fd,
|
| - ss->sec.ci.requiredElements ^ ss->sec.ci.elements));
|
| - ss->sec.ci.elements |= CIS_HAVE_FINISHED;
|
| - break;
|
| -
|
| - case SSL_MT_REQUEST_CERTIFICATE:
|
| - len = ss->gs.recordLen - 2;
|
| - if ((len < SSL_MIN_CHALLENGE_BYTES) ||
|
| - (len > SSL_MAX_CHALLENGE_BYTES)) {
|
| - /* Bad challenge */
|
| - SSL_DBG(("%d: SSL[%d]: bad cert request message: code len=%d",
|
| - SSL_GETPID(), ss->fd, len));
|
| - goto bad_peer;
|
| - }
|
| -
|
| - /* save auth request info */
|
| - ss->sec.ci.authType = data[1];
|
| - ss->sec.ci.serverChallengeLen = len;
|
| - PORT_Memcpy(ss->sec.ci.serverChallenge, data + 2, len);
|
| -
|
| - rv = ssl2_HandleRequestCertificate(ss);
|
| - if (rv == SECWouldBlock) {
|
| - SSL_TRC(3, ("%d: SSL[%d]: async cert request",
|
| - SSL_GETPID(), ss->fd));
|
| - /* someone is handling this asynchronously */
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECWouldBlock;
|
| - }
|
| - if (rv) {
|
| - SET_ERROR_CODE
|
| - goto loser;
|
| - }
|
| - break;
|
| -
|
| - case SSL_MT_CLIENT_CERTIFICATE:
|
| - if (!ss->authCertificate) {
|
| - /* Server asked for authentication and can't handle it */
|
| - PORT_SetError(SSL_ERROR_BAD_SERVER);
|
| - goto loser;
|
| - }
|
| - if (ss->gs.recordLen < SSL_HL_CLIENT_CERTIFICATE_HBYTES) {
|
| - SET_ERROR_CODE
|
| - goto loser;
|
| - }
|
| - certType = data[1];
|
| - certLen = (data[2] << 8) | data[3];
|
| - responseLen = (data[4] << 8) | data[5];
|
| - if (certType != SSL_CT_X509_CERTIFICATE) {
|
| - PORT_SetError(SSL_ERROR_UNSUPPORTED_CERTIFICATE_TYPE);
|
| - goto loser;
|
| - }
|
| - if (certLen + responseLen + SSL_HL_CLIENT_CERTIFICATE_HBYTES >
|
| - ss->gs.recordLen) {
|
| - /* prevent overflow crash. */
|
| - rv = SECFailure;
|
| - } else
|
| - rv = ssl2_HandleClientCertificate(ss, data[1],
|
| - data + SSL_HL_CLIENT_CERTIFICATE_HBYTES,
|
| - certLen,
|
| - data + SSL_HL_CLIENT_CERTIFICATE_HBYTES + certLen,
|
| - responseLen);
|
| - if (rv) {
|
| - (void)ssl2_SendErrorMessage(ss, SSL_PE_BAD_CERTIFICATE);
|
| - SET_ERROR_CODE
|
| - goto loser;
|
| - }
|
| - ss->sec.ci.elements |= CIS_HAVE_CERTIFICATE;
|
| - break;
|
| -
|
| - case SSL_MT_ERROR:
|
| - rv = (data[1] << 8) | data[2];
|
| - SSL_TRC(2, ("%d: SSL[%d]: got error message, error=0x%x",
|
| - SSL_GETPID(), ss->fd, rv));
|
| -
|
| - /* Convert protocol error number into API error number */
|
| - switch (rv) {
|
| - case SSL_PE_NO_CYPHERS:
|
| - rv = SSL_ERROR_NO_CYPHER_OVERLAP;
|
| - break;
|
| - case SSL_PE_NO_CERTIFICATE:
|
| - rv = SSL_ERROR_NO_CERTIFICATE;
|
| - break;
|
| - case SSL_PE_BAD_CERTIFICATE:
|
| - rv = SSL_ERROR_BAD_CERTIFICATE;
|
| - break;
|
| - case SSL_PE_UNSUPPORTED_CERTIFICATE_TYPE:
|
| - rv = SSL_ERROR_UNSUPPORTED_CERTIFICATE_TYPE;
|
| - break;
|
| - default:
|
| - goto bad_peer;
|
| - }
|
| - /* XXX make certificate-request optionally fail... */
|
| - PORT_SetError(rv);
|
| - goto loser;
|
| -
|
| - default:
|
| - SSL_DBG(("%d: SSL[%d]: unknown message %d",
|
| - SSL_GETPID(), ss->fd, data[0]));
|
| - goto loser;
|
| - }
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: handled %d message, required=0x%x got=0x%x",
|
| - SSL_GETPID(), ss->fd, data[0],
|
| - ss->sec.ci.requiredElements, ss->sec.ci.elements));
|
| -
|
| - rv = ssl2_TryToFinish(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - ss->gs.recordLen = 0;
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - if (ss->handshake == 0) {
|
| - return SECSuccess;
|
| - }
|
| -
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleMessage;
|
| - return ssl2_TriggerNextMessage(ss);
|
| -
|
| -bad_peer:
|
| - PORT_SetError(ss->sec.isServer ? SSL_ERROR_BAD_CLIENT : SSL_ERROR_BAD_SERVER);
|
| -/* FALL THROUGH */
|
| -
|
| -loser:
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/* Called from ssl_Do1stHandshake, after ssl2_HandleServerHelloMessage.
|
| -*/
|
| -static SECStatus
|
| -ssl2_HandleVerifyMessage(sslSocket *ss)
|
| -{
|
| - PRUint8 *data;
|
| - SECStatus rv;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - data = ss->gs.buf.buf + ss->gs.recordOffset;
|
| - DUMP_MSG(29, (ss, data, ss->gs.recordLen));
|
| - if ((ss->gs.recordLen != 1 + SSL_CHALLENGE_BYTES) ||
|
| - (data[0] != SSL_MT_SERVER_VERIFY) ||
|
| - NSS_SecureMemcmp(data + 1, ss->sec.ci.clientChallenge,
|
| - SSL_CHALLENGE_BYTES)) {
|
| - /* Bad server */
|
| - PORT_SetError(SSL_ERROR_BAD_SERVER);
|
| - goto loser;
|
| - }
|
| - ss->sec.ci.elements |= CIS_HAVE_VERIFY;
|
| -
|
| - SSL_TRC(5, ("%d: SSL[%d]: got server-verify, required=0x%d got=0x%x",
|
| - SSL_GETPID(), ss->fd, ss->sec.ci.requiredElements,
|
| - ss->sec.ci.elements));
|
| -
|
| - rv = ssl2_TryToFinish(ss);
|
| - if (rv)
|
| - goto loser;
|
| -
|
| - ss->gs.recordLen = 0;
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - if (ss->handshake == 0) {
|
| - return SECSuccess;
|
| - }
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleMessage;
|
| - return SECSuccess;
|
| -
|
| -loser:
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -/* Not static because ssl2_GatherData() tests ss->nextHandshake for this value.
|
| - * ICK!
|
| - * Called from ssl_Do1stHandshake after ssl2_BeginClientHandshake()
|
| - */
|
| -SECStatus
|
| -ssl2_HandleServerHelloMessage(sslSocket *ss)
|
| -{
|
| - sslSessionID *sid;
|
| - PRUint8 *cert;
|
| - PRUint8 *cs;
|
| - PRUint8 *data;
|
| - SECStatus rv;
|
| - unsigned int needed, sidHit, certLen, csLen, cidLen, certType, err;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - if (!ss->opt.enableSSL2) {
|
| - PORT_SetError(SSL_ERROR_SSL2_DISABLED);
|
| - return SECFailure;
|
| - }
|
| -
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - PORT_Assert(ss->sec.ci.sid != 0);
|
| - sid = ss->sec.ci.sid;
|
| -
|
| - data = ss->gs.buf.buf + ss->gs.recordOffset;
|
| - DUMP_MSG(29, (ss, data, ss->gs.recordLen));
|
| -
|
| - /* Make sure first message has some data and is the server hello message */
|
| - if ((ss->gs.recordLen < SSL_HL_SERVER_HELLO_HBYTES) ||
|
| - (data[0] != SSL_MT_SERVER_HELLO)) {
|
| - if ((data[0] == SSL_MT_ERROR) && (ss->gs.recordLen == 3)) {
|
| - err = (data[1] << 8) | data[2];
|
| - if (err == SSL_PE_NO_CYPHERS) {
|
| - PORT_SetError(SSL_ERROR_NO_CYPHER_OVERLAP);
|
| - goto loser;
|
| - }
|
| - }
|
| - goto bad_server;
|
| - }
|
| -
|
| - sidHit = data[1];
|
| - certType = data[2];
|
| - ss->version = (data[3] << 8) | data[4];
|
| - certLen = (data[5] << 8) | data[6];
|
| - csLen = (data[7] << 8) | data[8];
|
| - cidLen = (data[9] << 8) | data[10];
|
| - cert = data + SSL_HL_SERVER_HELLO_HBYTES;
|
| - cs = cert + certLen;
|
| -
|
| - SSL_TRC(5,
|
| - ("%d: SSL[%d]: server-hello, hit=%d vers=%x certLen=%d csLen=%d cidLen=%d",
|
| - SSL_GETPID(), ss->fd, sidHit, ss->version, certLen,
|
| - csLen, cidLen));
|
| - if (ss->version != SSL_LIBRARY_VERSION_2) {
|
| - if (ss->version < SSL_LIBRARY_VERSION_2) {
|
| - SSL_TRC(3, ("%d: SSL[%d]: demoting self (%x) to server version (%x)",
|
| - SSL_GETPID(), ss->fd, SSL_LIBRARY_VERSION_2,
|
| - ss->version));
|
| - } else {
|
| - SSL_TRC(1, ("%d: SSL[%d]: server version is %x (we are %x)",
|
| - SSL_GETPID(), ss->fd, ss->version, SSL_LIBRARY_VERSION_2));
|
| - /* server claims to be newer but does not follow protocol */
|
| - PORT_SetError(SSL_ERROR_UNSUPPORTED_VERSION);
|
| - goto loser;
|
| - }
|
| - }
|
| -
|
| - if ((SSL_HL_SERVER_HELLO_HBYTES + certLen + csLen + cidLen >
|
| - ss->gs.recordLen) ||
|
| - (csLen % 3) != 0
|
| - /* || cidLen < SSL_CONNECTIONID_BYTES || cidLen > 32 */
|
| - ) {
|
| - goto bad_server;
|
| - }
|
| -
|
| - /* Save connection-id.
|
| - ** This code only saves the first 16 byte of the connectionID.
|
| - ** If the connectionID is shorter than 16 bytes, it is zero-padded.
|
| - */
|
| - if (cidLen < sizeof ss->sec.ci.connectionID)
|
| - memset(ss->sec.ci.connectionID, 0, sizeof ss->sec.ci.connectionID);
|
| - cidLen = PR_MIN(cidLen, sizeof ss->sec.ci.connectionID);
|
| - PORT_Memcpy(ss->sec.ci.connectionID, cs + csLen, cidLen);
|
| -
|
| - /* See if session-id hit */
|
| - needed = CIS_HAVE_MASTER_KEY | CIS_HAVE_FINISHED | CIS_HAVE_VERIFY;
|
| - if (sidHit) {
|
| - if (certLen || csLen) {
|
| - /* Uh oh - bogus server */
|
| - SSL_DBG(("%d: SSL[%d]: client, huh? hit=%d certLen=%d csLen=%d",
|
| - SSL_GETPID(), ss->fd, sidHit, certLen, csLen));
|
| - goto bad_server;
|
| - }
|
| -
|
| - /* Total winner. */
|
| - SSL_TRC(1, ("%d: SSL[%d]: client, using nonce for peer=0x%08x "
|
| - "port=0x%04x",
|
| - SSL_GETPID(), ss->fd, ss->sec.ci.peer, ss->sec.ci.port));
|
| - ss->sec.peerCert = CERT_DupCertificate(sid->peerCert);
|
| - ss->sec.authAlgorithm = sid->authAlgorithm;
|
| - ss->sec.authKeyBits = sid->authKeyBits;
|
| - ss->sec.keaType = sid->keaType;
|
| - ss->sec.keaKeyBits = sid->keaKeyBits;
|
| - rv = ssl2_CreateSessionCypher(ss, sid, PR_TRUE);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - } else {
|
| - if (certType != SSL_CT_X509_CERTIFICATE) {
|
| - PORT_SetError(SSL_ERROR_UNSUPPORTED_CERTIFICATE_TYPE);
|
| - goto loser;
|
| - }
|
| - if (csLen == 0) {
|
| - PORT_SetError(SSL_ERROR_NO_CYPHER_OVERLAP);
|
| - SSL_DBG(("%d: SSL[%d]: no cipher overlap",
|
| - SSL_GETPID(), ss->fd));
|
| - goto loser;
|
| - }
|
| - if (certLen == 0) {
|
| - SSL_DBG(("%d: SSL[%d]: client, huh? certLen=%d csLen=%d",
|
| - SSL_GETPID(), ss->fd, certLen, csLen));
|
| - goto bad_server;
|
| - }
|
| -
|
| - if (sid->cached != never_cached) {
|
| - /* Forget our session-id - server didn't like it */
|
| - SSL_TRC(7, ("%d: SSL[%d]: server forgot me, uncaching session-id",
|
| - SSL_GETPID(), ss->fd));
|
| - if (ss->sec.uncache)
|
| - (*ss->sec.uncache)(sid);
|
| - ssl_FreeSID(sid);
|
| - ss->sec.ci.sid = sid = PORT_ZNew(sslSessionID);
|
| - if (!sid) {
|
| - goto loser;
|
| - }
|
| - sid->references = 1;
|
| - sid->addr = ss->sec.ci.peer;
|
| - sid->port = ss->sec.ci.port;
|
| - }
|
| -
|
| - /* decode the server's certificate */
|
| - rv = ssl2_ClientHandleServerCert(ss, cert, certLen);
|
| - if (rv != SECSuccess) {
|
| - if (PORT_GetError() == SSL_ERROR_BAD_CERTIFICATE) {
|
| - (void)ssl2_SendErrorMessage(ss, SSL_PE_BAD_CERTIFICATE);
|
| - }
|
| - goto loser;
|
| - }
|
| -
|
| - /* Setup new session cipher */
|
| - rv = ssl2_ClientSetupSessionCypher(ss, cs, csLen);
|
| - if (rv != SECSuccess) {
|
| - if (PORT_GetError() == SSL_ERROR_BAD_CERTIFICATE) {
|
| - (void)ssl2_SendErrorMessage(ss, SSL_PE_BAD_CERTIFICATE);
|
| - }
|
| - goto loser;
|
| - }
|
| - }
|
| -
|
| - /* Build up final list of required elements */
|
| - ss->sec.ci.elements = CIS_HAVE_MASTER_KEY;
|
| - ss->sec.ci.requiredElements = needed;
|
| -
|
| - if (!sidHit) {
|
| - /* verify the server's certificate. if sidHit, don't check signatures */
|
| - rv = (*ss->authCertificate)(ss->authCertificateArg, ss->fd,
|
| - (PRBool)(!sidHit), PR_FALSE);
|
| - if (rv) {
|
| - if (ss->handleBadCert) {
|
| - rv = (*ss->handleBadCert)(ss->badCertArg, ss->fd);
|
| - if (rv) {
|
| - if (rv == SECWouldBlock) {
|
| - SSL_DBG(("%d: SSL[%d]: SSL2 bad cert handler returned "
|
| - "SECWouldBlock",
|
| - SSL_GETPID(), ss->fd));
|
| - PORT_SetError(SSL_ERROR_FEATURE_NOT_SUPPORTED_FOR_SSL2);
|
| - rv = SECFailure;
|
| - } else {
|
| - /* cert is bad */
|
| - SSL_DBG(("%d: SSL[%d]: server certificate is no good: error=%d",
|
| - SSL_GETPID(), ss->fd, PORT_GetError()));
|
| - }
|
| - goto loser;
|
| - }
|
| - /* cert is good */
|
| - } else {
|
| - SSL_DBG(("%d: SSL[%d]: server certificate is no good: error=%d",
|
| - SSL_GETPID(), ss->fd, PORT_GetError()));
|
| - goto loser;
|
| - }
|
| - }
|
| - }
|
| - /*
|
| - ** At this point we have a completed session key and our session
|
| - ** cipher is setup and ready to go. Switch to encrypted write routine
|
| - ** as all future message data is to be encrypted.
|
| - */
|
| - ssl2_UseEncryptedSendFunc(ss);
|
| -
|
| - rv = ssl2_TryToFinish(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - ss->gs.recordLen = 0;
|
| -
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - if (ss->handshake == 0) {
|
| - return SECSuccess;
|
| - }
|
| -
|
| - SSL_TRC(5, ("%d: SSL[%d]: got server-hello, required=0x%d got=0x%x",
|
| - SSL_GETPID(), ss->fd, ss->sec.ci.requiredElements,
|
| - ss->sec.ci.elements));
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleVerifyMessage;
|
| - return SECSuccess;
|
| -
|
| -bad_server:
|
| - PORT_SetError(SSL_ERROR_BAD_SERVER);
|
| -/* FALL THROUGH */
|
| -
|
| -loser:
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -/* Sends out the initial client Hello message on the connection.
|
| - * Acquires and releases the socket's xmitBufLock.
|
| - */
|
| -SECStatus
|
| -ssl2_BeginClientHandshake(sslSocket *ss)
|
| -{
|
| - sslSessionID *sid;
|
| - PRUint8 *msg;
|
| - PRUint8 *cp;
|
| - PRUint8 *localCipherSpecs = NULL;
|
| - unsigned int localCipherSize;
|
| - unsigned int i;
|
| - int sendLen, sidLen = 0;
|
| - SECStatus rv;
|
| - TLSExtensionData *xtnData;
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - ss->sec.isServer = 0;
|
| - ss->sec.sendSequence = 0;
|
| - ss->sec.rcvSequence = 0;
|
| - ssl_ChooseSessionIDProcs(&ss->sec);
|
| -
|
| - if (!ss->cipherSpecs) {
|
| - rv = ssl2_ConstructCipherSpecs(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| - }
|
| -
|
| - /* count the SSL2 and SSL3 enabled ciphers.
|
| - * if either is zero, clear the socket's enable for that protocol.
|
| - */
|
| - rv = ssl2_CheckConfigSanity(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - /* Get peer name of server */
|
| - rv = ssl_GetPeerInfo(ss);
|
| - if (rv < 0) {
|
| -#ifdef HPUX11
|
| - /*
|
| - * On some HP-UX B.11.00 systems, getpeername() occasionally
|
| - * fails with ENOTCONN after a successful completion of
|
| - * non-blocking connect. I found that if we do a write()
|
| - * and then retry getpeername(), it will work.
|
| - */
|
| - if (PR_GetError() == PR_NOT_CONNECTED_ERROR) {
|
| - char dummy;
|
| - (void)PR_Write(ss->fd->lower, &dummy, 0);
|
| - rv = ssl_GetPeerInfo(ss);
|
| - if (rv < 0) {
|
| - goto loser;
|
| - }
|
| - }
|
| -#else
|
| - goto loser;
|
| -#endif
|
| - }
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending client-hello", SSL_GETPID(), ss->fd));
|
| -
|
| - /* Try to find server in our session-id cache */
|
| - if (ss->opt.noCache) {
|
| - sid = NULL;
|
| - } else {
|
| - sid = ssl_LookupSID(&ss->sec.ci.peer, ss->sec.ci.port, ss->peerID,
|
| - ss->url);
|
| - }
|
| - while (sid) { /* this isn't really a loop */
|
| - PRBool sidVersionEnabled =
|
| - (!SSL3_ALL_VERSIONS_DISABLED(&ss->vrange) &&
|
| - sid->version >= ss->vrange.min &&
|
| - sid->version <= ss->vrange.max) ||
|
| - (sid->version < SSL_LIBRARY_VERSION_3_0 && ss->opt.enableSSL2);
|
| -
|
| - /* if we're not doing this SID's protocol any more, drop it. */
|
| - if (!sidVersionEnabled) {
|
| - if (ss->sec.uncache)
|
| - ss->sec.uncache(sid);
|
| - ssl_FreeSID(sid);
|
| - sid = NULL;
|
| - break;
|
| - }
|
| - if (sid->version < SSL_LIBRARY_VERSION_3_0) {
|
| - /* If the cipher in this sid is not enabled, drop it. */
|
| - for (i = 0; i < ss->sizeCipherSpecs; i += 3) {
|
| - if (ss->cipherSpecs[i] == sid->u.ssl2.cipherType)
|
| - break;
|
| - }
|
| - if (i >= ss->sizeCipherSpecs) {
|
| - if (ss->sec.uncache)
|
| - ss->sec.uncache(sid);
|
| - ssl_FreeSID(sid);
|
| - sid = NULL;
|
| - break;
|
| - }
|
| - }
|
| - sidLen = sizeof(sid->u.ssl2.sessionID);
|
| - PRINT_BUF(4, (ss, "client, found session-id:", sid->u.ssl2.sessionID,
|
| - sidLen));
|
| - ss->version = sid->version;
|
| - PORT_Assert(!ss->sec.localCert);
|
| - if (ss->sec.localCert) {
|
| - CERT_DestroyCertificate(ss->sec.localCert);
|
| - }
|
| - ss->sec.localCert = CERT_DupCertificate(sid->localCert);
|
| - break; /* this isn't really a loop */
|
| - }
|
| - if (!sid) {
|
| - sidLen = 0;
|
| - sid = PORT_ZNew(sslSessionID);
|
| - if (!sid) {
|
| - goto loser;
|
| - }
|
| - sid->references = 1;
|
| - sid->cached = never_cached;
|
| - sid->addr = ss->sec.ci.peer;
|
| - sid->port = ss->sec.ci.port;
|
| - if (ss->peerID != NULL) {
|
| - sid->peerID = PORT_Strdup(ss->peerID);
|
| - }
|
| - if (ss->url != NULL) {
|
| - sid->urlSvrName = PORT_Strdup(ss->url);
|
| - }
|
| - }
|
| - ss->sec.ci.sid = sid;
|
| -
|
| - PORT_Assert(sid != NULL);
|
| -
|
| - if ((sid->version >= SSL_LIBRARY_VERSION_3_0 || !ss->opt.v2CompatibleHello) &&
|
| - !SSL3_ALL_VERSIONS_DISABLED(&ss->vrange)) {
|
| - ss->gs.state = GS_INIT;
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| -
|
| - /* ssl3_SendClientHello will override this if it succeeds. */
|
| - ss->version = SSL_LIBRARY_VERSION_3_0;
|
| -
|
| - ssl_GetSSL3HandshakeLock(ss);
|
| - ssl_GetXmitBufLock(ss);
|
| - rv = ssl3_SendClientHello(ss, PR_FALSE);
|
| - ssl_ReleaseXmitBufLock(ss);
|
| - ssl_ReleaseSSL3HandshakeLock(ss);
|
| -
|
| - return rv;
|
| - }
|
| -#ifndef NSS_DISABLE_ECC
|
| - /* ensure we don't neogtiate ECC cipher suites with SSL2 hello */
|
| - ssl3_DisableECCSuites(ss, NULL); /* disable all ECC suites */
|
| - if (ss->cipherSpecs != NULL) {
|
| - PORT_Free(ss->cipherSpecs);
|
| - ss->cipherSpecs = NULL;
|
| - ss->sizeCipherSpecs = 0;
|
| - }
|
| -#endif /* NSS_DISABLE_ECC */
|
| -
|
| - if (!ss->cipherSpecs) {
|
| - rv = ssl2_ConstructCipherSpecs(ss);
|
| - if (rv < 0) {
|
| - return rv;
|
| - }
|
| - }
|
| - localCipherSpecs = ss->cipherSpecs;
|
| - localCipherSize = ss->sizeCipherSpecs;
|
| -
|
| - /* Add 3 for SCSV */
|
| - sendLen = SSL_HL_CLIENT_HELLO_HBYTES + localCipherSize + 3 + sidLen +
|
| - SSL_CHALLENGE_BYTES;
|
| -
|
| - /* Generate challenge bytes for server */
|
| - PK11_GenerateRandom(ss->sec.ci.clientChallenge, SSL_CHALLENGE_BYTES);
|
| -
|
| - ssl_GetXmitBufLock(ss); /***************************************/
|
| -
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv)
|
| - goto unlock_loser;
|
| -
|
| - /* Construct client-hello message */
|
| - cp = msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_CLIENT_HELLO;
|
| - ss->clientHelloVersion = SSL3_ALL_VERSIONS_DISABLED(&ss->vrange) ? SSL_LIBRARY_VERSION_2
|
| - : ss->vrange.max;
|
| -
|
| - msg[1] = MSB(ss->clientHelloVersion);
|
| - msg[2] = LSB(ss->clientHelloVersion);
|
| - /* Add 3 for SCSV */
|
| - msg[3] = MSB(localCipherSize + 3);
|
| - msg[4] = LSB(localCipherSize + 3);
|
| - msg[5] = MSB(sidLen);
|
| - msg[6] = LSB(sidLen);
|
| - msg[7] = MSB(SSL_CHALLENGE_BYTES);
|
| - msg[8] = LSB(SSL_CHALLENGE_BYTES);
|
| - cp += SSL_HL_CLIENT_HELLO_HBYTES;
|
| - PORT_Memcpy(cp, localCipherSpecs, localCipherSize);
|
| - cp += localCipherSize;
|
| - /*
|
| - * Add SCSV. SSL 2.0 cipher suites are listed before SSL 3.0 cipher
|
| - * suites in localCipherSpecs for compatibility with SSL 2.0 servers.
|
| - * Since SCSV looks like an SSL 3.0 cipher suite, we can't add it at
|
| - * the beginning.
|
| - */
|
| - cp[0] = 0x00;
|
| - cp[1] = 0x00;
|
| - cp[2] = 0xff;
|
| - cp += 3;
|
| - if (sidLen) {
|
| - PORT_Memcpy(cp, sid->u.ssl2.sessionID, sidLen);
|
| - cp += sidLen;
|
| - }
|
| - PORT_Memcpy(cp, ss->sec.ci.clientChallenge, SSL_CHALLENGE_BYTES);
|
| -
|
| - /* Send it to the server */
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| - ss->handshakeBegun = 1;
|
| - rv = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| -
|
| - ssl_ReleaseXmitBufLock(ss); /***************************************/
|
| -
|
| - if (rv < 0) {
|
| - goto loser;
|
| - }
|
| -
|
| - rv = ssl3_StartHandshakeHash(ss, msg, sendLen);
|
| - if (rv < 0) {
|
| - goto loser;
|
| - }
|
| -
|
| - /*
|
| - * Since we sent the SCSV, pretend we sent empty RI extension. We need
|
| - * to record the extension has been advertised after ssl3_InitState has
|
| - * been called, which ssl3_StartHandshakeHash took care for us above.
|
| - */
|
| - xtnData = &ss->xtnData;
|
| - xtnData->advertised[xtnData->numAdvertised++] = ssl_renegotiation_info_xtn;
|
| -
|
| - /* Setup to receive servers hello message */
|
| - ssl_GetRecvBufLock(ss);
|
| - ss->gs.recordLen = 0;
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleServerHelloMessage;
|
| - return SECSuccess;
|
| -
|
| -unlock_loser:
|
| - ssl_ReleaseXmitBufLock(ss);
|
| -loser:
|
| - return SECFailure;
|
| -}
|
| -
|
| -/************************************************************************/
|
| -
|
| -/* Handle the CLIENT-MASTER-KEY message.
|
| -** Acquires and releases RecvBufLock.
|
| -** Called from ssl2_HandleClientHelloMessage().
|
| -*/
|
| -static SECStatus
|
| -ssl2_HandleClientSessionKeyMessage(sslSocket *ss)
|
| -{
|
| - PRUint8 *data;
|
| - unsigned int caLen;
|
| - unsigned int ckLen;
|
| - unsigned int ekLen;
|
| - unsigned int keyBits;
|
| - int cipher;
|
| - SECStatus rv;
|
| -
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - data = ss->gs.buf.buf + ss->gs.recordOffset;
|
| - DUMP_MSG(29, (ss, data, ss->gs.recordLen));
|
| -
|
| - if ((ss->gs.recordLen < SSL_HL_CLIENT_MASTER_KEY_HBYTES) ||
|
| - (data[0] != SSL_MT_CLIENT_MASTER_KEY)) {
|
| - goto bad_client;
|
| - }
|
| - cipher = data[1];
|
| - keyBits = (data[2] << 8) | data[3];
|
| - ckLen = (data[4] << 8) | data[5];
|
| - ekLen = (data[6] << 8) | data[7];
|
| - caLen = (data[8] << 8) | data[9];
|
| -
|
| - SSL_TRC(5, ("%d: SSL[%d]: session-key, cipher=%d keyBits=%d ckLen=%d ekLen=%d caLen=%d",
|
| - SSL_GETPID(), ss->fd, cipher, keyBits, ckLen, ekLen, caLen));
|
| -
|
| - if (ss->gs.recordLen <
|
| - SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen + ekLen + caLen) {
|
| - SSL_DBG(("%d: SSL[%d]: protocol size mismatch dataLen=%d",
|
| - SSL_GETPID(), ss->fd, ss->gs.recordLen));
|
| - goto bad_client;
|
| - }
|
| -
|
| - /* Use info from client to setup session key */
|
| - rv = ssl2_ServerSetupSessionCypher(ss, cipher, keyBits,
|
| - data + SSL_HL_CLIENT_MASTER_KEY_HBYTES,
|
| - ckLen,
|
| - data + SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen,
|
| - ekLen,
|
| - data + SSL_HL_CLIENT_MASTER_KEY_HBYTES + ckLen + ekLen,
|
| - caLen);
|
| - ss->gs.recordLen = 0; /* we're done with this record. */
|
| -
|
| - ssl_ReleaseRecvBufLock(ss);
|
| -
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - ss->sec.ci.elements |= CIS_HAVE_MASTER_KEY;
|
| - ssl2_UseEncryptedSendFunc(ss);
|
| -
|
| - /* Send server verify message now that keys are established */
|
| - rv = ssl2_SendServerVerifyMessage(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - rv = ssl2_TryToFinish(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| - if (ss->handshake == 0) {
|
| - return SECSuccess;
|
| - }
|
| -
|
| - SSL_TRC(5, ("%d: SSL[%d]: server: waiting for elements=0x%d",
|
| - SSL_GETPID(), ss->fd,
|
| - ss->sec.ci.requiredElements ^ ss->sec.ci.elements));
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleMessage;
|
| -
|
| - return ssl2_TriggerNextMessage(ss);
|
| -
|
| -bad_client:
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| -/* FALLTHROUGH */
|
| -
|
| -loser:
|
| - return SECFailure;
|
| -}
|
| -
|
| -/*
|
| -** Handle the initial hello message from the client
|
| -**
|
| -** not static because ssl2_GatherData() tests ss->nextHandshake for this value.
|
| -*/
|
| -SECStatus
|
| -ssl2_HandleClientHelloMessage(sslSocket *ss)
|
| -{
|
| - sslSessionID *sid;
|
| - sslServerCerts *sc;
|
| - CERTCertificate *serverCert;
|
| - PRUint8 *msg;
|
| - PRUint8 *data;
|
| - PRUint8 *cs;
|
| - PRUint8 *sd;
|
| - PRUint8 *cert = NULL;
|
| - PRUint8 *challenge;
|
| - unsigned int challengeLen;
|
| - SECStatus rv;
|
| - int csLen;
|
| - int sendLen;
|
| - int sdLen;
|
| - int certLen;
|
| - int pid;
|
| - int sent;
|
| - int gotXmitBufLock = 0;
|
| -#if defined(SOLARIS) && defined(i386)
|
| - volatile PRUint8 hit;
|
| -#else
|
| - int hit;
|
| -#endif
|
| - PRUint8 csImpl[sizeof implementedCipherSuites];
|
| -
|
| - PORT_Assert(ss->opt.noLocks || ssl_Have1stHandshakeLock(ss));
|
| -
|
| - sc = ss->serverCerts + kt_rsa;
|
| - serverCert = sc->serverCert;
|
| -
|
| - ssl_GetRecvBufLock(ss);
|
| -
|
| - data = ss->gs.buf.buf + ss->gs.recordOffset;
|
| - DUMP_MSG(29, (ss, data, ss->gs.recordLen));
|
| -
|
| - /* Make sure first message has some data and is the client hello message */
|
| - if ((ss->gs.recordLen < SSL_HL_CLIENT_HELLO_HBYTES) ||
|
| - (data[0] != SSL_MT_CLIENT_HELLO)) {
|
| - goto bad_client;
|
| - }
|
| -
|
| - /* Get peer name of client */
|
| - rv = ssl_GetPeerInfo(ss);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - /* Examine version information */
|
| - /*
|
| - * See if this might be a V2 client hello asking to use the V3 protocol
|
| - */
|
| - if ((data[0] == SSL_MT_CLIENT_HELLO) &&
|
| - (data[1] >= MSB(SSL_LIBRARY_VERSION_3_0)) &&
|
| - !SSL3_ALL_VERSIONS_DISABLED(&ss->vrange)) {
|
| - rv = ssl3_HandleV2ClientHello(ss, data, ss->gs.recordLen);
|
| - if (rv != SECFailure) { /* Success */
|
| - ss->handshake = NULL;
|
| - ss->nextHandshake = ssl_GatherRecord1stHandshake;
|
| - ss->securityHandshake = NULL;
|
| - ss->gs.state = GS_INIT;
|
| -
|
| - /* ssl3_HandleV3ClientHello has set ss->version,
|
| - ** and has gotten us a brand new sid.
|
| - */
|
| - ss->sec.ci.sid->version = ss->version;
|
| - }
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return rv;
|
| - }
|
| - /* Previously, there was a test here to see if SSL2 was enabled.
|
| - ** If not, an error code was set, and SECFailure was returned,
|
| - ** without sending any error code to the other end of the connection.
|
| - ** That test has been removed. If SSL2 has been disabled, there
|
| - ** should be no SSL2 ciphers enabled, and consequently, the code
|
| - ** below should send the ssl2 error message SSL_PE_NO_CYPHERS.
|
| - ** We now believe this is the correct thing to do, even when SSL2
|
| - ** has been explicitly disabled by the application.
|
| - */
|
| -
|
| - /* Extract info from message */
|
| - ss->version = (data[1] << 8) | data[2];
|
| -
|
| - /* If some client thinks ssl v2 is 2.0 instead of 0.2, we'll allow it. */
|
| - if (ss->version >= SSL_LIBRARY_VERSION_3_0) {
|
| - ss->version = SSL_LIBRARY_VERSION_2;
|
| - }
|
| -
|
| - csLen = (data[3] << 8) | data[4];
|
| - sdLen = (data[5] << 8) | data[6];
|
| - challengeLen = (data[7] << 8) | data[8];
|
| - cs = data + SSL_HL_CLIENT_HELLO_HBYTES;
|
| - sd = cs + csLen;
|
| - challenge = sd + sdLen;
|
| - PRINT_BUF(7, (ss, "server, client session-id value:", sd, sdLen));
|
| -
|
| - if (!csLen || (csLen % 3) != 0 ||
|
| - (sdLen != 0 && sdLen != SSL2_SESSIONID_BYTES) ||
|
| - challengeLen < SSL_MIN_CHALLENGE_BYTES ||
|
| - challengeLen > SSL_MAX_CHALLENGE_BYTES ||
|
| - (unsigned)ss->gs.recordLen !=
|
| - SSL_HL_CLIENT_HELLO_HBYTES + csLen + sdLen + challengeLen) {
|
| - SSL_DBG(("%d: SSL[%d]: bad client hello message, len=%d should=%d",
|
| - SSL_GETPID(), ss->fd, ss->gs.recordLen,
|
| - SSL_HL_CLIENT_HELLO_HBYTES + csLen + sdLen + challengeLen));
|
| - goto bad_client;
|
| - }
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: client version is %x",
|
| - SSL_GETPID(), ss->fd, ss->version));
|
| - if (ss->version != SSL_LIBRARY_VERSION_2) {
|
| - if (ss->version > SSL_LIBRARY_VERSION_2) {
|
| - /*
|
| - ** Newer client than us. Things are ok because new clients
|
| - ** are required to be backwards compatible with old servers.
|
| - ** Change version number to our version number so that client
|
| - ** knows whats up.
|
| - */
|
| - ss->version = SSL_LIBRARY_VERSION_2;
|
| - } else {
|
| - SSL_TRC(1, ("%d: SSL[%d]: client version is %x (we are %x)",
|
| - SSL_GETPID(), ss->fd, ss->version, SSL_LIBRARY_VERSION_2));
|
| - PORT_SetError(SSL_ERROR_UNSUPPORTED_VERSION);
|
| - goto loser;
|
| - }
|
| - }
|
| -
|
| - /* Qualify cipher specs before returning them to client */
|
| - csLen = ssl2_QualifyCypherSpecs(ss, cs, csLen);
|
| - if (csLen == 0) {
|
| - /* no overlap, send client our list of supported SSL v2 ciphers. */
|
| - cs = csImpl;
|
| - csLen = sizeof implementedCipherSuites;
|
| - PORT_Memcpy(cs, implementedCipherSuites, csLen);
|
| - csLen = ssl2_QualifyCypherSpecs(ss, cs, csLen);
|
| - if (csLen == 0) {
|
| - /* We don't support any SSL v2 ciphers! */
|
| - ssl2_SendErrorMessage(ss, SSL_PE_NO_CYPHERS);
|
| - PORT_SetError(SSL_ERROR_NO_CYPHER_OVERLAP);
|
| - goto loser;
|
| - }
|
| - /* Since this handhsake is going to fail, don't cache it. */
|
| - ss->opt.noCache = 1;
|
| - }
|
| -
|
| - /* Squirrel away the challenge for later */
|
| - PORT_Memcpy(ss->sec.ci.clientChallenge, challenge, challengeLen);
|
| -
|
| - /* Examine message and see if session-id is good */
|
| - ss->sec.ci.elements = 0;
|
| - if (sdLen > 0 && !ss->opt.noCache) {
|
| - SSL_TRC(7, ("%d: SSL[%d]: server, lookup client session-id for 0x%08x%08x%08x%08x",
|
| - SSL_GETPID(), ss->fd, ss->sec.ci.peer.pr_s6_addr32[0],
|
| - ss->sec.ci.peer.pr_s6_addr32[1],
|
| - ss->sec.ci.peer.pr_s6_addr32[2],
|
| - ss->sec.ci.peer.pr_s6_addr32[3]));
|
| - sid = (*ssl_sid_lookup)(&ss->sec.ci.peer, sd, sdLen, ss->dbHandle);
|
| - } else {
|
| - sid = NULL;
|
| - }
|
| - if (sid) {
|
| - /* Got a good session-id. Short cut! */
|
| - SSL_TRC(1, ("%d: SSL[%d]: server, using session-id for 0x%08x (age=%d)",
|
| - SSL_GETPID(), ss->fd, ss->sec.ci.peer,
|
| - ssl_Time() - sid->creationTime));
|
| - PRINT_BUF(1, (ss, "session-id value:", sd, sdLen));
|
| - ss->sec.ci.sid = sid;
|
| - ss->sec.ci.elements = CIS_HAVE_MASTER_KEY;
|
| - hit = 1;
|
| - certLen = 0;
|
| - csLen = 0;
|
| -
|
| - ss->sec.authAlgorithm = sid->authAlgorithm;
|
| - ss->sec.authKeyBits = sid->authKeyBits;
|
| - ss->sec.keaType = sid->keaType;
|
| - ss->sec.keaKeyBits = sid->keaKeyBits;
|
| -
|
| - rv = ssl2_CreateSessionCypher(ss, sid, PR_FALSE);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| - } else {
|
| - SECItem *derCert = &serverCert->derCert;
|
| -
|
| - SSL_TRC(7, ("%d: SSL[%d]: server, lookup nonce missed",
|
| - SSL_GETPID(), ss->fd));
|
| - if (!serverCert) {
|
| - SET_ERROR_CODE
|
| - goto loser;
|
| - }
|
| - hit = 0;
|
| - sid = PORT_ZNew(sslSessionID);
|
| - if (!sid) {
|
| - goto loser;
|
| - }
|
| - sid->references = 1;
|
| - sid->addr = ss->sec.ci.peer;
|
| - sid->port = ss->sec.ci.port;
|
| -
|
| - /* Invent a session-id */
|
| - ss->sec.ci.sid = sid;
|
| - PK11_GenerateRandom(sid->u.ssl2.sessionID + 2, SSL2_SESSIONID_BYTES - 2);
|
| -
|
| - pid = SSL_GETPID();
|
| - sid->u.ssl2.sessionID[0] = MSB(pid);
|
| - sid->u.ssl2.sessionID[1] = LSB(pid);
|
| - cert = derCert->data;
|
| - certLen = derCert->len;
|
| -
|
| - /* pretend that server sids remember the local cert. */
|
| - PORT_Assert(!sid->localCert);
|
| - if (sid->localCert) {
|
| - CERT_DestroyCertificate(sid->localCert);
|
| - }
|
| - sid->localCert = CERT_DupCertificate(serverCert);
|
| -
|
| - ss->sec.authAlgorithm = ssl_sign_rsa;
|
| - ss->sec.keaType = ssl_kea_rsa;
|
| - ss->sec.keaKeyBits =
|
| - ss->sec.authKeyBits = ss->serverCerts[kt_rsa].serverKeyBits;
|
| - }
|
| -
|
| - /* server sids don't remember the local cert, so whether we found
|
| - ** a sid or not, just "remember" we used the rsa server cert.
|
| - */
|
| - if (ss->sec.localCert) {
|
| - CERT_DestroyCertificate(ss->sec.localCert);
|
| - }
|
| - ss->sec.localCert = CERT_DupCertificate(serverCert);
|
| -
|
| - /* Build up final list of required elements */
|
| - ss->sec.ci.requiredElements = CIS_HAVE_MASTER_KEY | CIS_HAVE_FINISHED;
|
| - if (ss->opt.requestCertificate) {
|
| - ss->sec.ci.requiredElements |= CIS_HAVE_CERTIFICATE;
|
| - }
|
| - ss->sec.ci.sentElements = 0;
|
| -
|
| - /* Send hello message back to client */
|
| - sendLen = SSL_HL_SERVER_HELLO_HBYTES + certLen + csLen +
|
| - SSL_CONNECTIONID_BYTES;
|
| -
|
| - ssl_GetXmitBufLock(ss);
|
| - gotXmitBufLock = 1;
|
| - rv = ssl2_GetSendBuffer(ss, sendLen);
|
| - if (rv != SECSuccess) {
|
| - goto loser;
|
| - }
|
| -
|
| - SSL_TRC(3, ("%d: SSL[%d]: sending server-hello (%d)",
|
| - SSL_GETPID(), ss->fd, sendLen));
|
| -
|
| - msg = ss->sec.ci.sendBuf.buf;
|
| - msg[0] = SSL_MT_SERVER_HELLO;
|
| - msg[1] = hit;
|
| - msg[2] = SSL_CT_X509_CERTIFICATE;
|
| - msg[3] = MSB(ss->version);
|
| - msg[4] = LSB(ss->version);
|
| - msg[5] = MSB(certLen);
|
| - msg[6] = LSB(certLen);
|
| - msg[7] = MSB(csLen);
|
| - msg[8] = LSB(csLen);
|
| - msg[9] = MSB(SSL_CONNECTIONID_BYTES);
|
| - msg[10] = LSB(SSL_CONNECTIONID_BYTES);
|
| - if (certLen) {
|
| - PORT_Memcpy(msg + SSL_HL_SERVER_HELLO_HBYTES, cert, certLen);
|
| - }
|
| - if (csLen) {
|
| - PORT_Memcpy(msg + SSL_HL_SERVER_HELLO_HBYTES + certLen, cs, csLen);
|
| - }
|
| - PORT_Memcpy(msg + SSL_HL_SERVER_HELLO_HBYTES + certLen + csLen,
|
| - ss->sec.ci.connectionID, SSL_CONNECTIONID_BYTES);
|
| -
|
| - DUMP_MSG(29, (ss, msg, sendLen));
|
| -
|
| - ss->handshakeBegun = 1;
|
| - sent = (*ss->sec.send)(ss, msg, sendLen, 0);
|
| - if (sent < 0) {
|
| - goto loser;
|
| - }
|
| - ssl_ReleaseXmitBufLock(ss);
|
| - gotXmitBufLock = 0;
|
| -
|
| - ss->gs.recordLen = 0;
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - if (hit) {
|
| - /* Old SID Session key is good. Go encrypted */
|
| - ssl2_UseEncryptedSendFunc(ss);
|
| -
|
| - /* Send server verify message now that keys are established */
|
| - rv = ssl2_SendServerVerifyMessage(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - ss->nextHandshake = ssl2_HandleMessage;
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - rv = ssl2_TriggerNextMessage(ss);
|
| - return rv;
|
| - }
|
| - ss->nextHandshake = ssl2_HandleClientSessionKeyMessage;
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECSuccess;
|
| -
|
| -bad_client:
|
| - PORT_SetError(SSL_ERROR_BAD_CLIENT);
|
| -/* FALLTHROUGH */
|
| -
|
| -loser:
|
| - if (gotXmitBufLock) {
|
| - ssl_ReleaseXmitBufLock(ss);
|
| - gotXmitBufLock = 0;
|
| - }
|
| - SSL_TRC(10, ("%d: SSL[%d]: server, wait for client-hello lossage",
|
| - SSL_GETPID(), ss->fd));
|
| - ssl_ReleaseRecvBufLock(ss);
|
| - return SECFailure;
|
| -}
|
| -
|
| -SECStatus
|
| -ssl2_BeginServerHandshake(sslSocket *ss)
|
| -{
|
| - SECStatus rv;
|
| - sslServerCerts *rsaAuth = ss->serverCerts + kt_rsa;
|
| -
|
| - ss->sec.isServer = 1;
|
| - ssl_ChooseSessionIDProcs(&ss->sec);
|
| - ss->sec.sendSequence = 0;
|
| - ss->sec.rcvSequence = 0;
|
| -
|
| - /* don't turn on SSL2 if we don't have an RSA key and cert */
|
| - if (!rsaAuth->serverKeyPair || !rsaAuth->SERVERKEY ||
|
| - !rsaAuth->serverCert) {
|
| - ss->opt.enableSSL2 = PR_FALSE;
|
| - }
|
| -
|
| - if (!ss->cipherSpecs) {
|
| - rv = ssl2_ConstructCipherSpecs(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| - }
|
| -
|
| - /* count the SSL2 and SSL3 enabled ciphers.
|
| - * if either is zero, clear the socket's enable for that protocol.
|
| - */
|
| - rv = ssl2_CheckConfigSanity(ss);
|
| - if (rv != SECSuccess)
|
| - goto loser;
|
| -
|
| - /*
|
| - ** Generate connection-id. Always do this, even if things fail
|
| - ** immediately. This way the random number generator is always
|
| - ** rolling around, every time we get a connection.
|
| - */
|
| - PK11_GenerateRandom(ss->sec.ci.connectionID,
|
| - sizeof(ss->sec.ci.connectionID));
|
| -
|
| - ss->gs.recordLen = 0;
|
| - ss->handshake = ssl_GatherRecord1stHandshake;
|
| - ss->nextHandshake = ssl2_HandleClientHelloMessage;
|
| - return SECSuccess;
|
| -
|
| -loser:
|
| - return SECFailure;
|
| -}
|
| -
|
| -/* This function doesn't really belong in this file.
|
| -** It's here to keep AIX compilers from optimizing it away,
|
| -** and not including it in the DSO.
|
| -*/
|
| -
|
| -#include "nss.h"
|
| -extern const char __nss_ssl_version[];
|
| -
|
| -PRBool
|
| -NSSSSL_VersionCheck(const char *importedVersion)
|
| -{
|
| -#define NSS_VERSION_VARIABLE __nss_ssl_version
|
| -#include "verref.h"
|
| -
|
| - /*
|
| - * This is the secret handshake algorithm.
|
| - *
|
| - * This release has a simple version compatibility
|
| - * check algorithm. This release is not backward
|
| - * compatible with previous major releases. It is
|
| - * not compatible with future major, minor, or
|
| - * patch releases.
|
| - */
|
| - return NSS_VersionCheck(importedVersion);
|
| -}
|
| -
|
| -const char *
|
| -NSSSSL_GetVersion(void)
|
| -{
|
| - return NSS_VERSION;
|
| -}
|
|
|
Chromium Code Reviews
Issue 1882433002:
Removing NSS files and USE_OPENSSL flag (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master