diff options
Diffstat (limited to 'chromium/net/third_party/nss/ssl/sslsock.c')
| -rw-r--r-- | chromium/net/third_party/nss/ssl/sslsock.c | 3128 |
1 files changed, 3128 insertions, 0 deletions
diff --git a/chromium/net/third_party/nss/ssl/sslsock.c b/chromium/net/third_party/nss/ssl/sslsock.c new file mode 100644 index 00000000000..c17c7a3ad03 --- /dev/null +++ b/chromium/net/third_party/nss/ssl/sslsock.c @@ -0,0 +1,3128 @@ +/* + * vtables (and methods that call through them) for the 4 types of + * SSLSockets supported. Only one type is still supported. + * Various other functions. + * + * 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 "seccomon.h" +#include "cert.h" +#include "keyhi.h" +#include "ssl.h" +#include "sslimpl.h" +#include "sslproto.h" +#include "nspr.h" +#include "private/pprio.h" +#ifndef NO_PKCS11_BYPASS +#include "blapi.h" +#endif +#include "pk11pub.h" +#include "nss.h" + +/* This is a bodge to allow this code to be compiled against older NSS headers + * that don't contain the TLS 1.2 changes. */ +#ifndef CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256 +#define CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256 (CKM_NSS + 24) +#endif + +#define SET_ERROR_CODE /* reminder */ + +struct cipherPolicyStr { + int cipher; + unsigned char export; /* policy value for export policy */ + unsigned char france; /* policy value for france policy */ +}; + +typedef struct cipherPolicyStr cipherPolicy; + +/* This table contains two preconfigured policies: Export and France. +** It is used only by the functions NSS_SetDomesticPolicy, +** NSS_SetExportPolicy, and NSS_SetFrancePolicy. +** Order of entries is not important. +*/ +static cipherPolicy ssl_ciphers[] = { /* Export France */ + { SSL_EN_RC4_128_WITH_MD5, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_EN_RC4_128_EXPORT40_WITH_MD5, SSL_ALLOWED, SSL_ALLOWED }, + { SSL_EN_RC2_128_CBC_WITH_MD5, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_EN_RC2_128_CBC_EXPORT40_WITH_MD5, SSL_ALLOWED, SSL_ALLOWED }, + { SSL_EN_DES_64_CBC_WITH_MD5, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_EN_DES_192_EDE3_CBC_WITH_MD5, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_RSA_WITH_RC4_128_MD5, SSL_RESTRICTED, SSL_NOT_ALLOWED }, + { SSL_RSA_WITH_RC4_128_SHA, SSL_RESTRICTED, SSL_NOT_ALLOWED }, + { SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RESTRICTED, SSL_NOT_ALLOWED }, + { SSL_RSA_FIPS_WITH_DES_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_RSA_WITH_DES_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL_ALLOWED, SSL_ALLOWED }, + { SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5, SSL_ALLOWED, SSL_ALLOWED }, + { SSL_DHE_RSA_WITH_DES_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_DHE_DSS_WITH_DES_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_DSS_WITH_RC4_128_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { SSL_RSA_WITH_NULL_MD5, SSL_ALLOWED, SSL_ALLOWED }, + { SSL_RSA_WITH_NULL_SHA, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_RSA_WITH_NULL_SHA256, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_AES_128_CBC_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_AES_128_GCM_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_DSS_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_AES_256_CBC_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_WITH_SEED_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, SSL_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, SSL_ALLOWED, SSL_NOT_ALLOWED }, +#ifdef NSS_ENABLE_ECC + { TLS_ECDH_ECDSA_WITH_NULL_SHA, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_ECDH_ECDSA_WITH_RC4_128_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_NULL_SHA, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_RSA_WITH_NULL_SHA, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_ECDH_RSA_WITH_RC4_128_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_NULL_SHA, SSL_ALLOWED, SSL_ALLOWED }, + { TLS_ECDHE_RSA_WITH_RC4_128_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, + { TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED }, +#endif /* NSS_ENABLE_ECC */ + { 0, SSL_NOT_ALLOWED, SSL_NOT_ALLOWED } +}; + +static const sslSocketOps ssl_default_ops = { /* No SSL. */ + ssl_DefConnect, + NULL, + ssl_DefBind, + ssl_DefListen, + ssl_DefShutdown, + ssl_DefClose, + ssl_DefRecv, + ssl_DefSend, + ssl_DefRead, + ssl_DefWrite, + ssl_DefGetpeername, + ssl_DefGetsockname +}; + +static const sslSocketOps ssl_secure_ops = { /* SSL. */ + ssl_SecureConnect, + NULL, + ssl_DefBind, + ssl_DefListen, + ssl_SecureShutdown, + ssl_SecureClose, + ssl_SecureRecv, + ssl_SecureSend, + ssl_SecureRead, + ssl_SecureWrite, + ssl_DefGetpeername, + ssl_DefGetsockname +}; + +/* +** default settings for socket enables +*/ +static sslOptions ssl_defaults = { + { siBuffer, NULL, 0 }, /* nextProtoNego */ + PR_TRUE, /* useSecurity */ + PR_FALSE, /* useSocks */ + PR_FALSE, /* requestCertificate */ + 2, /* requireCertificate */ + PR_FALSE, /* handshakeAsClient */ + PR_FALSE, /* handshakeAsServer */ + PR_FALSE, /* enableSSL2 */ /* now defaults to off in NSS 3.13 */ + PR_FALSE, /* unusedBit9 */ + PR_FALSE, /* unusedBit10 */ + PR_FALSE, /* noCache */ + PR_FALSE, /* fdx */ + PR_FALSE, /* v2CompatibleHello */ /* now defaults to off in NSS 3.13 */ + PR_TRUE, /* detectRollBack */ + PR_FALSE, /* noStepDown */ + PR_FALSE, /* bypassPKCS11 */ + PR_FALSE, /* noLocks */ + PR_FALSE, /* enableSessionTickets */ + PR_FALSE, /* enableDeflate */ + 2, /* enableRenegotiation (default: requires extension) */ + PR_FALSE, /* requireSafeNegotiation */ + PR_FALSE, /* enableFalseStart */ + PR_TRUE, /* cbcRandomIV */ + PR_FALSE /* enableOCSPStapling */ +}; + +/* + * default range of enabled SSL/TLS protocols + */ +static SSLVersionRange versions_defaults_stream = { + SSL_LIBRARY_VERSION_3_0, + SSL_LIBRARY_VERSION_TLS_1_0 +}; + +static SSLVersionRange versions_defaults_datagram = { + SSL_LIBRARY_VERSION_TLS_1_1, + SSL_LIBRARY_VERSION_TLS_1_1 +}; + +#define VERSIONS_DEFAULTS(variant) \ + (variant == ssl_variant_stream ? &versions_defaults_stream : \ + &versions_defaults_datagram) + +sslSessionIDLookupFunc ssl_sid_lookup; +sslSessionIDCacheFunc ssl_sid_cache; +sslSessionIDUncacheFunc ssl_sid_uncache; + +static PRBool ssl_inited = PR_FALSE; +static PRDescIdentity ssl_layer_id; + +PRBool locksEverDisabled; /* implicitly PR_FALSE */ +PRBool ssl_force_locks; /* implicitly PR_FALSE */ +int ssl_lock_readers = 1; /* default true. */ +char ssl_debug; +char ssl_trace; +FILE * ssl_trace_iob; +FILE * ssl_keylog_iob; +char lockStatus[] = "Locks are ENABLED. "; +#define LOCKSTATUS_OFFSET 10 /* offset of ENABLED */ + +/* SRTP_NULL_HMAC_SHA1_80 and SRTP_NULL_HMAC_SHA1_32 are not implemented. */ +static const PRUint16 srtpCiphers[] = { + SRTP_AES128_CM_HMAC_SHA1_80, + SRTP_AES128_CM_HMAC_SHA1_32, + 0 +}; + +/* forward declarations. */ +static sslSocket *ssl_NewSocket(PRBool makeLocks, SSLProtocolVariant variant); +static SECStatus ssl_MakeLocks(sslSocket *ss); +static void ssl_SetDefaultsFromEnvironment(void); +static PRStatus ssl_PushIOLayer(sslSocket *ns, PRFileDesc *stack, + PRDescIdentity id); + +/************************************************************************/ + +/* +** Lookup a socket structure from a file descriptor. +** Only functions called through the PRIOMethods table should use this. +** Other app-callable functions should use ssl_FindSocket. +*/ +static sslSocket * +ssl_GetPrivate(PRFileDesc *fd) +{ + sslSocket *ss; + + PORT_Assert(fd != NULL); + PORT_Assert(fd->methods->file_type == PR_DESC_LAYERED); + PORT_Assert(fd->identity == ssl_layer_id); + + if (fd->methods->file_type != PR_DESC_LAYERED || + fd->identity != ssl_layer_id) { + PORT_SetError(PR_BAD_DESCRIPTOR_ERROR); + return NULL; + } + + ss = (sslSocket *)fd->secret; + ss->fd = fd; + return ss; +} + +/* This function tries to find the SSL layer in the stack. + * It searches for the first SSL layer at or below the argument fd, + * and failing that, it searches for the nearest SSL layer above the + * argument fd. It returns the private sslSocket from the found layer. + */ +sslSocket * +ssl_FindSocket(PRFileDesc *fd) +{ + PRFileDesc *layer; + sslSocket *ss; + + PORT_Assert(fd != NULL); + PORT_Assert(ssl_layer_id != 0); + + layer = PR_GetIdentitiesLayer(fd, ssl_layer_id); + if (layer == NULL) { + PORT_SetError(PR_BAD_DESCRIPTOR_ERROR); + return NULL; + } + + ss = (sslSocket *)layer->secret; + ss->fd = layer; + return ss; +} + +static sslSocket * +ssl_DupSocket(sslSocket *os) +{ + sslSocket *ss; + SECStatus rv; + + ss = ssl_NewSocket((PRBool)(!os->opt.noLocks), os->protocolVariant); + if (ss) { + ss->opt = os->opt; + ss->opt.useSocks = PR_FALSE; + ss->vrange = os->vrange; + + ss->peerID = !os->peerID ? NULL : PORT_Strdup(os->peerID); + ss->url = !os->url ? NULL : PORT_Strdup(os->url); + + ss->ops = os->ops; + ss->rTimeout = os->rTimeout; + ss->wTimeout = os->wTimeout; + ss->cTimeout = os->cTimeout; + ss->dbHandle = os->dbHandle; + + /* copy ssl2&3 policy & prefs, even if it's not selected (yet) */ + ss->allowedByPolicy = os->allowedByPolicy; + ss->maybeAllowedByPolicy= os->maybeAllowedByPolicy; + ss->chosenPreference = os->chosenPreference; + PORT_Memcpy(ss->cipherSuites, os->cipherSuites, sizeof os->cipherSuites); + PORT_Memcpy(ss->ssl3.dtlsSRTPCiphers, os->ssl3.dtlsSRTPCiphers, + sizeof(PRUint16) * os->ssl3.dtlsSRTPCipherCount); + ss->ssl3.dtlsSRTPCipherCount = os->ssl3.dtlsSRTPCipherCount; + + if (os->cipherSpecs) { + ss->cipherSpecs = (unsigned char*)PORT_Alloc(os->sizeCipherSpecs); + if (ss->cipherSpecs) + PORT_Memcpy(ss->cipherSpecs, os->cipherSpecs, + os->sizeCipherSpecs); + ss->sizeCipherSpecs = os->sizeCipherSpecs; + ss->preferredCipher = os->preferredCipher; + } else { + ss->cipherSpecs = NULL; /* produced lazily */ + ss->sizeCipherSpecs = 0; + ss->preferredCipher = NULL; + } + if (ss->opt.useSecurity) { + /* This int should be SSLKEAType, but CC on Irix complains, + * during the for loop. + */ + int i; + sslServerCerts * oc = os->serverCerts; + sslServerCerts * sc = ss->serverCerts; + + for (i=kt_null; i < kt_kea_size; i++, oc++, sc++) { + if (oc->serverCert && oc->serverCertChain) { + sc->serverCert = CERT_DupCertificate(oc->serverCert); + sc->serverCertChain = CERT_DupCertList(oc->serverCertChain); + if (!sc->serverCertChain) + goto loser; + } else { + sc->serverCert = NULL; + sc->serverCertChain = NULL; + } + sc->serverKeyPair = oc->serverKeyPair ? + ssl3_GetKeyPairRef(oc->serverKeyPair) : NULL; + if (oc->serverKeyPair && !sc->serverKeyPair) + goto loser; + sc->serverKeyBits = oc->serverKeyBits; + ss->certStatusArray[i] = !os->certStatusArray[i] ? NULL : + SECITEM_DupArray(NULL, os->certStatusArray[i]); + } + ss->stepDownKeyPair = !os->stepDownKeyPair ? NULL : + ssl3_GetKeyPairRef(os->stepDownKeyPair); + ss->ephemeralECDHKeyPair = !os->ephemeralECDHKeyPair ? NULL : + ssl3_GetKeyPairRef(os->ephemeralECDHKeyPair); +/* + * XXX the preceding CERT_ and SECKEY_ functions can fail and return NULL. + * XXX We should detect this, and not just march on with NULL pointers. + */ + ss->authCertificate = os->authCertificate; + ss->authCertificateArg = os->authCertificateArg; + ss->getClientAuthData = os->getClientAuthData; + ss->getClientAuthDataArg = os->getClientAuthDataArg; +#ifdef NSS_PLATFORM_CLIENT_AUTH + ss->getPlatformClientAuthData = os->getPlatformClientAuthData; + ss->getPlatformClientAuthDataArg = os->getPlatformClientAuthDataArg; +#endif + ss->sniSocketConfig = os->sniSocketConfig; + ss->sniSocketConfigArg = os->sniSocketConfigArg; + ss->handleBadCert = os->handleBadCert; + ss->badCertArg = os->badCertArg; + ss->handshakeCallback = os->handshakeCallback; + ss->handshakeCallbackData = os->handshakeCallbackData; + ss->pkcs11PinArg = os->pkcs11PinArg; + ss->getChannelID = os->getChannelID; + ss->getChannelIDArg = os->getChannelIDArg; + + /* Create security data */ + rv = ssl_CopySecurityInfo(ss, os); + if (rv != SECSuccess) { + goto loser; + } + } + } + return ss; + +loser: + ssl_FreeSocket(ss); + return NULL; +} + +static void +ssl_DestroyLocks(sslSocket *ss) +{ + /* Destroy locks. */ + if (ss->firstHandshakeLock) { + PZ_DestroyMonitor(ss->firstHandshakeLock); + ss->firstHandshakeLock = NULL; + } + if (ss->ssl3HandshakeLock) { + PZ_DestroyMonitor(ss->ssl3HandshakeLock); + ss->ssl3HandshakeLock = NULL; + } + if (ss->specLock) { + NSSRWLock_Destroy(ss->specLock); + ss->specLock = NULL; + } + + if (ss->recvLock) { + PZ_DestroyLock(ss->recvLock); + ss->recvLock = NULL; + } + if (ss->sendLock) { + PZ_DestroyLock(ss->sendLock); + ss->sendLock = NULL; + } + if (ss->xmitBufLock) { + PZ_DestroyMonitor(ss->xmitBufLock); + ss->xmitBufLock = NULL; + } + if (ss->recvBufLock) { + PZ_DestroyMonitor(ss->recvBufLock); + ss->recvBufLock = NULL; + } +} + +/* Caller holds any relevant locks */ +static void +ssl_DestroySocketContents(sslSocket *ss) +{ + /* "i" should be of type SSLKEAType, but CC on IRIX complains during + * the for loop. + */ + int i; + + /* Free up socket */ + ssl_DestroySecurityInfo(&ss->sec); + + ssl3_DestroySSL3Info(ss); + + PORT_Free(ss->saveBuf.buf); + PORT_Free(ss->pendingBuf.buf); + ssl_DestroyGather(&ss->gs); + + if (ss->peerID != NULL) + PORT_Free(ss->peerID); + if (ss->url != NULL) + PORT_Free((void *)ss->url); /* CONST */ + if (ss->cipherSpecs) { + PORT_Free(ss->cipherSpecs); + ss->cipherSpecs = NULL; + ss->sizeCipherSpecs = 0; + } + + /* Clean up server configuration */ + for (i=kt_null; i < kt_kea_size; i++) { + sslServerCerts * sc = ss->serverCerts + i; + if (sc->serverCert != NULL) + CERT_DestroyCertificate(sc->serverCert); + if (sc->serverCertChain != NULL) + CERT_DestroyCertificateList(sc->serverCertChain); + if (sc->serverKeyPair != NULL) + ssl3_FreeKeyPair(sc->serverKeyPair); + if (ss->certStatusArray[i] != NULL) { + SECITEM_FreeArray(ss->certStatusArray[i], PR_TRUE); + ss->certStatusArray[i] = NULL; + } + } + if (ss->stepDownKeyPair) { + ssl3_FreeKeyPair(ss->stepDownKeyPair); + ss->stepDownKeyPair = NULL; + } + if (ss->ephemeralECDHKeyPair) { + ssl3_FreeKeyPair(ss->ephemeralECDHKeyPair); + ss->ephemeralECDHKeyPair = NULL; + } + SECITEM_FreeItem(&ss->opt.nextProtoNego, PR_FALSE); + PORT_Assert(!ss->xtnData.sniNameArr); + if (ss->xtnData.sniNameArr) { + PORT_Free(ss->xtnData.sniNameArr); + ss->xtnData.sniNameArr = NULL; + } +} + +/* + * free an sslSocket struct, and all the stuff that hangs off of it + */ +void +ssl_FreeSocket(sslSocket *ss) +{ +/* Get every lock you can imagine! +** Caller already holds these: +** SSL_LOCK_READER(ss); +** SSL_LOCK_WRITER(ss); +*/ + ssl_Get1stHandshakeLock(ss); + ssl_GetRecvBufLock(ss); + ssl_GetSSL3HandshakeLock(ss); + ssl_GetXmitBufLock(ss); + ssl_GetSpecWriteLock(ss); + + ssl_DestroySocketContents(ss); + + /* Release all the locks acquired above. */ + SSL_UNLOCK_READER(ss); + SSL_UNLOCK_WRITER(ss); + ssl_Release1stHandshakeLock(ss); + ssl_ReleaseRecvBufLock(ss); + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_ReleaseXmitBufLock(ss); + ssl_ReleaseSpecWriteLock(ss); + + ssl_DestroyLocks(ss); + +#ifdef DEBUG + PORT_Memset(ss, 0x1f, sizeof *ss); +#endif + PORT_Free(ss); + return; +} + +/************************************************************************/ +SECStatus +ssl_EnableNagleDelay(sslSocket *ss, PRBool enabled) +{ + PRFileDesc * osfd = ss->fd->lower; + SECStatus rv = SECFailure; + PRSocketOptionData opt; + + opt.option = PR_SockOpt_NoDelay; + opt.value.no_delay = (PRBool)!enabled; + + if (osfd->methods->setsocketoption) { + rv = (SECStatus) osfd->methods->setsocketoption(osfd, &opt); + } else { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + } + + return rv; +} + +static void +ssl_ChooseOps(sslSocket *ss) +{ + ss->ops = ss->opt.useSecurity ? &ssl_secure_ops : &ssl_default_ops; +} + +/* Called from SSL_Enable (immediately below) */ +static SECStatus +PrepareSocket(sslSocket *ss) +{ + SECStatus rv = SECSuccess; + + ssl_ChooseOps(ss); + return rv; +} + +SECStatus +SSL_Enable(PRFileDesc *fd, int which, PRBool on) +{ + return SSL_OptionSet(fd, which, on); +} + +#ifndef NO_PKCS11_BYPASS +static const PRCallOnceType pristineCallOnce; +static PRCallOnceType setupBypassOnce; + +static SECStatus SSL_BypassShutdown(void* appData, void* nssData) +{ + /* unload freeBL shared library from memory */ + BL_Unload(); + setupBypassOnce = pristineCallOnce; + return SECSuccess; +} + +static PRStatus SSL_BypassRegisterShutdown(void) +{ + SECStatus rv = NSS_RegisterShutdown(SSL_BypassShutdown, NULL); + PORT_Assert(SECSuccess == rv); + return SECSuccess == rv ? PR_SUCCESS : PR_FAILURE; +} +#endif + +static PRStatus SSL_BypassSetup(void) +{ +#ifdef NO_PKCS11_BYPASS + /* Guarantee binary compatibility */ + return PR_SUCCESS; +#else + return PR_CallOnce(&setupBypassOnce, &SSL_BypassRegisterShutdown); +#endif +} + +/* Implements the semantics for SSL_OptionSet(SSL_ENABLE_TLS, on) described in + * ssl.h in the section "SSL version range setting API". + */ +static void +ssl_EnableTLS(SSLVersionRange *vrange, PRBool on) +{ + if (SSL3_ALL_VERSIONS_DISABLED(vrange)) { + if (on) { + vrange->min = SSL_LIBRARY_VERSION_TLS_1_0; + vrange->max = SSL_LIBRARY_VERSION_TLS_1_0; + } /* else don't change anything */ + return; + } + + if (on) { + /* Expand the range of enabled version to include TLS 1.0 */ + vrange->min = PR_MIN(vrange->min, SSL_LIBRARY_VERSION_TLS_1_0); + vrange->max = PR_MAX(vrange->max, SSL_LIBRARY_VERSION_TLS_1_0); + } else { + /* Disable all TLS versions, leaving only SSL 3.0 if it was enabled */ + if (vrange->min == SSL_LIBRARY_VERSION_3_0) { + vrange->max = SSL_LIBRARY_VERSION_3_0; + } else { + /* Only TLS was enabled, so now no versions are. */ + vrange->min = SSL_LIBRARY_VERSION_NONE; + vrange->max = SSL_LIBRARY_VERSION_NONE; + } + } +} + +/* Implements the semantics for SSL_OptionSet(SSL_ENABLE_SSL3, on) described in + * ssl.h in the section "SSL version range setting API". + */ +static void +ssl_EnableSSL3(SSLVersionRange *vrange, PRBool on) +{ + if (SSL3_ALL_VERSIONS_DISABLED(vrange)) { + if (on) { + vrange->min = SSL_LIBRARY_VERSION_3_0; + vrange->max = SSL_LIBRARY_VERSION_3_0; + } /* else don't change anything */ + return; + } + + if (on) { + /* Expand the range of enabled versions to include SSL 3.0. We know + * SSL 3.0 or some version of TLS is already enabled at this point, so + * we don't need to change vrange->max. + */ + vrange->min = SSL_LIBRARY_VERSION_3_0; + } else { + /* Disable SSL 3.0, leaving TLS unaffected. */ + if (vrange->max > SSL_LIBRARY_VERSION_3_0) { + vrange->min = PR_MAX(vrange->min, SSL_LIBRARY_VERSION_TLS_1_0); + } else { + /* Only SSL 3.0 was enabled, so now no versions are. */ + vrange->min = SSL_LIBRARY_VERSION_NONE; + vrange->max = SSL_LIBRARY_VERSION_NONE; + } + } +} + +SECStatus +SSL_OptionSet(PRFileDesc *fd, PRInt32 which, PRBool on) +{ + sslSocket *ss = ssl_FindSocket(fd); + SECStatus rv = SECSuccess; + PRBool holdingLocks; + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in Enable", SSL_GETPID(), fd)); + return SECFailure; + } + + holdingLocks = (!ss->opt.noLocks); + ssl_Get1stHandshakeLock(ss); + ssl_GetSSL3HandshakeLock(ss); + + switch (which) { + case SSL_SOCKS: + ss->opt.useSocks = PR_FALSE; + rv = PrepareSocket(ss); + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + break; + + case SSL_SECURITY: + ss->opt.useSecurity = on; + rv = PrepareSocket(ss); + break; + + case SSL_REQUEST_CERTIFICATE: + ss->opt.requestCertificate = on; + break; + + case SSL_REQUIRE_CERTIFICATE: + ss->opt.requireCertificate = on; + break; + + case SSL_HANDSHAKE_AS_CLIENT: + if ( ss->opt.handshakeAsServer && on ) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + break; + } + ss->opt.handshakeAsClient = on; + break; + + case SSL_HANDSHAKE_AS_SERVER: + if ( ss->opt.handshakeAsClient && on ) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + break; + } + ss->opt.handshakeAsServer = on; + break; + + case SSL_ENABLE_TLS: + if (IS_DTLS(ss)) { + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; /* not allowed */ + } + break; + } + ssl_EnableTLS(&ss->vrange, on); + ss->preferredCipher = NULL; + if (ss->cipherSpecs) { + PORT_Free(ss->cipherSpecs); + ss->cipherSpecs = NULL; + ss->sizeCipherSpecs = 0; + } + break; + + case SSL_ENABLE_SSL3: + if (IS_DTLS(ss)) { + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; /* not allowed */ + } + break; + } + ssl_EnableSSL3(&ss->vrange, on); + ss->preferredCipher = NULL; + if (ss->cipherSpecs) { + PORT_Free(ss->cipherSpecs); + ss->cipherSpecs = NULL; + ss->sizeCipherSpecs = 0; + } + break; + + case SSL_ENABLE_SSL2: + if (IS_DTLS(ss)) { + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; /* not allowed */ + } + break; + } + ss->opt.enableSSL2 = on; + if (on) { + ss->opt.v2CompatibleHello = on; + } + ss->preferredCipher = NULL; + if (ss->cipherSpecs) { + PORT_Free(ss->cipherSpecs); + ss->cipherSpecs = NULL; + ss->sizeCipherSpecs = 0; + } + break; + + case SSL_NO_CACHE: + ss->opt.noCache = on; + break; + + case SSL_ENABLE_FDX: + if (on && ss->opt.noLocks) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + ss->opt.fdx = on; + break; + + case SSL_V2_COMPATIBLE_HELLO: + if (IS_DTLS(ss)) { + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; /* not allowed */ + } + break; + } + ss->opt.v2CompatibleHello = on; + if (!on) { + ss->opt.enableSSL2 = on; + } + break; + + case SSL_ROLLBACK_DETECTION: + ss->opt.detectRollBack = on; + break; + + case SSL_NO_STEP_DOWN: + ss->opt.noStepDown = on; + if (on) + SSL_DisableExportCipherSuites(fd); + break; + + case SSL_BYPASS_PKCS11: + if (ss->handshakeBegun) { + PORT_SetError(PR_INVALID_STATE_ERROR); + rv = SECFailure; + } else { + if (PR_FALSE != on) { + if (PR_SUCCESS == SSL_BypassSetup() ) { +#ifdef NO_PKCS11_BYPASS + ss->opt.bypassPKCS11 = PR_FALSE; +#else + ss->opt.bypassPKCS11 = on; +#endif + } else { + rv = SECFailure; + } + } else { + ss->opt.bypassPKCS11 = PR_FALSE; + } + } + break; + + case SSL_NO_LOCKS: + if (on && ss->opt.fdx) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + if (on && ssl_force_locks) + on = PR_FALSE; /* silent override */ + ss->opt.noLocks = on; + if (on) { + locksEverDisabled = PR_TRUE; + strcpy(lockStatus + LOCKSTATUS_OFFSET, "DISABLED."); + } else if (!holdingLocks) { + rv = ssl_MakeLocks(ss); + if (rv != SECSuccess) { + ss->opt.noLocks = PR_TRUE; + } + } + break; + + case SSL_ENABLE_SESSION_TICKETS: + ss->opt.enableSessionTickets = on; + break; + + case SSL_ENABLE_DEFLATE: + ss->opt.enableDeflate = on; + break; + + case SSL_ENABLE_RENEGOTIATION: + ss->opt.enableRenegotiation = on; + break; + + case SSL_REQUIRE_SAFE_NEGOTIATION: + ss->opt.requireSafeNegotiation = on; + break; + + case SSL_ENABLE_FALSE_START: + ss->opt.enableFalseStart = on; + break; + + case SSL_CBC_RANDOM_IV: + ss->opt.cbcRandomIV = on; + break; + + case SSL_ENABLE_OCSP_STAPLING: + ss->opt.enableOCSPStapling = on; + break; + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + + /* We can't use the macros for releasing the locks here, + * because ss->opt.noLocks might have changed just above. + * We must release these locks (monitors) here, if we aquired them above, + * regardless of the current value of ss->opt.noLocks. + */ + if (holdingLocks) { + PZ_ExitMonitor((ss)->ssl3HandshakeLock); + PZ_ExitMonitor((ss)->firstHandshakeLock); + } + + return rv; +} + +SECStatus +SSL_OptionGet(PRFileDesc *fd, PRInt32 which, PRBool *pOn) +{ + sslSocket *ss = ssl_FindSocket(fd); + SECStatus rv = SECSuccess; + PRBool on = PR_FALSE; + + if (!pOn) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in Enable", SSL_GETPID(), fd)); + *pOn = PR_FALSE; + return SECFailure; + } + + ssl_Get1stHandshakeLock(ss); + ssl_GetSSL3HandshakeLock(ss); + + switch (which) { + case SSL_SOCKS: on = PR_FALSE; break; + case SSL_SECURITY: on = ss->opt.useSecurity; break; + case SSL_REQUEST_CERTIFICATE: on = ss->opt.requestCertificate; break; + case SSL_REQUIRE_CERTIFICATE: on = ss->opt.requireCertificate; break; + case SSL_HANDSHAKE_AS_CLIENT: on = ss->opt.handshakeAsClient; break; + case SSL_HANDSHAKE_AS_SERVER: on = ss->opt.handshakeAsServer; break; + case SSL_ENABLE_TLS: + on = ss->vrange.max >= SSL_LIBRARY_VERSION_TLS_1_0; + break; + case SSL_ENABLE_SSL3: + on = ss->vrange.min == SSL_LIBRARY_VERSION_3_0; + break; + case SSL_ENABLE_SSL2: on = ss->opt.enableSSL2; break; + case SSL_NO_CACHE: on = ss->opt.noCache; break; + case SSL_ENABLE_FDX: on = ss->opt.fdx; break; + case SSL_V2_COMPATIBLE_HELLO: on = ss->opt.v2CompatibleHello; break; + case SSL_ROLLBACK_DETECTION: on = ss->opt.detectRollBack; break; + case SSL_NO_STEP_DOWN: on = ss->opt.noStepDown; break; + case SSL_BYPASS_PKCS11: on = ss->opt.bypassPKCS11; break; + case SSL_NO_LOCKS: on = ss->opt.noLocks; break; + case SSL_ENABLE_SESSION_TICKETS: + on = ss->opt.enableSessionTickets; + break; + case SSL_ENABLE_DEFLATE: on = ss->opt.enableDeflate; break; + case SSL_ENABLE_RENEGOTIATION: + on = ss->opt.enableRenegotiation; break; + case SSL_REQUIRE_SAFE_NEGOTIATION: + on = ss->opt.requireSafeNegotiation; break; + case SSL_ENABLE_FALSE_START: on = ss->opt.enableFalseStart; break; + case SSL_CBC_RANDOM_IV: on = ss->opt.cbcRandomIV; break; + case SSL_ENABLE_OCSP_STAPLING: on = ss->opt.enableOCSPStapling; break; + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_Release1stHandshakeLock(ss); + + *pOn = on; + return rv; +} + +SECStatus +SSL_OptionGetDefault(PRInt32 which, PRBool *pOn) +{ + SECStatus rv = SECSuccess; + PRBool on = PR_FALSE; + + if (!pOn) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + ssl_SetDefaultsFromEnvironment(); + + switch (which) { + case SSL_SOCKS: on = PR_FALSE; break; + case SSL_SECURITY: on = ssl_defaults.useSecurity; break; + case SSL_REQUEST_CERTIFICATE: on = ssl_defaults.requestCertificate; break; + case SSL_REQUIRE_CERTIFICATE: on = ssl_defaults.requireCertificate; break; + case SSL_HANDSHAKE_AS_CLIENT: on = ssl_defaults.handshakeAsClient; break; + case SSL_HANDSHAKE_AS_SERVER: on = ssl_defaults.handshakeAsServer; break; + case SSL_ENABLE_TLS: + on = versions_defaults_stream.max >= SSL_LIBRARY_VERSION_TLS_1_0; + break; + case SSL_ENABLE_SSL3: + on = versions_defaults_stream.min == SSL_LIBRARY_VERSION_3_0; + break; + case SSL_ENABLE_SSL2: on = ssl_defaults.enableSSL2; break; + case SSL_NO_CACHE: on = ssl_defaults.noCache; break; + case SSL_ENABLE_FDX: on = ssl_defaults.fdx; break; + case SSL_V2_COMPATIBLE_HELLO: on = ssl_defaults.v2CompatibleHello; break; + case SSL_ROLLBACK_DETECTION: on = ssl_defaults.detectRollBack; break; + case SSL_NO_STEP_DOWN: on = ssl_defaults.noStepDown; break; + case SSL_BYPASS_PKCS11: on = ssl_defaults.bypassPKCS11; break; + case SSL_NO_LOCKS: on = ssl_defaults.noLocks; break; + case SSL_ENABLE_SESSION_TICKETS: + on = ssl_defaults.enableSessionTickets; + break; + case SSL_ENABLE_DEFLATE: on = ssl_defaults.enableDeflate; break; + case SSL_ENABLE_RENEGOTIATION: + on = ssl_defaults.enableRenegotiation; break; + case SSL_REQUIRE_SAFE_NEGOTIATION: + on = ssl_defaults.requireSafeNegotiation; + break; + case SSL_ENABLE_FALSE_START: on = ssl_defaults.enableFalseStart; break; + case SSL_CBC_RANDOM_IV: on = ssl_defaults.cbcRandomIV; break; + case SSL_ENABLE_OCSP_STAPLING: + on = ssl_defaults.enableOCSPStapling; + break; + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + rv = SECFailure; + } + + *pOn = on; + return rv; +} + +/* XXX Use Global Lock to protect this stuff. */ +SECStatus +SSL_EnableDefault(int which, PRBool on) +{ + return SSL_OptionSetDefault(which, on); +} + +SECStatus +SSL_OptionSetDefault(PRInt32 which, PRBool on) +{ + SECStatus status = ssl_Init(); + + if (status != SECSuccess) { + return status; + } + + ssl_SetDefaultsFromEnvironment(); + + switch (which) { + case SSL_SOCKS: + ssl_defaults.useSocks = PR_FALSE; + if (on) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + break; + + case SSL_SECURITY: + ssl_defaults.useSecurity = on; + break; + + case SSL_REQUEST_CERTIFICATE: + ssl_defaults.requestCertificate = on; + break; + + case SSL_REQUIRE_CERTIFICATE: + ssl_defaults.requireCertificate = on; + break; + + case SSL_HANDSHAKE_AS_CLIENT: + if ( ssl_defaults.handshakeAsServer && on ) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + ssl_defaults.handshakeAsClient = on; + break; + + case SSL_HANDSHAKE_AS_SERVER: + if ( ssl_defaults.handshakeAsClient && on ) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + ssl_defaults.handshakeAsServer = on; + break; + + case SSL_ENABLE_TLS: + ssl_EnableTLS(&versions_defaults_stream, on); + break; + + case SSL_ENABLE_SSL3: + ssl_EnableSSL3(&versions_defaults_stream, on); + break; + + case SSL_ENABLE_SSL2: + ssl_defaults.enableSSL2 = on; + if (on) { + ssl_defaults.v2CompatibleHello = on; + } + break; + + case SSL_NO_CACHE: + ssl_defaults.noCache = on; + break; + + case SSL_ENABLE_FDX: + if (on && ssl_defaults.noLocks) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + ssl_defaults.fdx = on; + break; + + case SSL_V2_COMPATIBLE_HELLO: + ssl_defaults.v2CompatibleHello = on; + if (!on) { + ssl_defaults.enableSSL2 = on; + } + break; + + case SSL_ROLLBACK_DETECTION: + ssl_defaults.detectRollBack = on; + break; + + case SSL_NO_STEP_DOWN: + ssl_defaults.noStepDown = on; + if (on) + SSL_DisableDefaultExportCipherSuites(); + break; + + case SSL_BYPASS_PKCS11: + if (PR_FALSE != on) { + if (PR_SUCCESS == SSL_BypassSetup()) { +#ifdef NO_PKCS11_BYPASS + ssl_defaults.bypassPKCS11 = PR_FALSE; +#else + ssl_defaults.bypassPKCS11 = on; +#endif + } else { + return SECFailure; + } + } else { + ssl_defaults.bypassPKCS11 = PR_FALSE; + } + break; + + case SSL_NO_LOCKS: + if (on && ssl_defaults.fdx) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (on && ssl_force_locks) + on = PR_FALSE; /* silent override */ + ssl_defaults.noLocks = on; + if (on) { + locksEverDisabled = PR_TRUE; + strcpy(lockStatus + LOCKSTATUS_OFFSET, "DISABLED."); + } + break; + + case SSL_ENABLE_SESSION_TICKETS: + ssl_defaults.enableSessionTickets = on; + break; + + case SSL_ENABLE_DEFLATE: + ssl_defaults.enableDeflate = on; + break; + + case SSL_ENABLE_RENEGOTIATION: + ssl_defaults.enableRenegotiation = on; + break; + + case SSL_REQUIRE_SAFE_NEGOTIATION: + ssl_defaults.requireSafeNegotiation = on; + break; + + case SSL_ENABLE_FALSE_START: + ssl_defaults.enableFalseStart = on; + break; + + case SSL_CBC_RANDOM_IV: + ssl_defaults.cbcRandomIV = on; + break; + + case SSL_ENABLE_OCSP_STAPLING: + ssl_defaults.enableOCSPStapling = on; + break; + + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + return SECSuccess; +} + +/* function tells us if the cipher suite is one that we no longer support. */ +static PRBool +ssl_IsRemovedCipherSuite(PRInt32 suite) +{ + switch (suite) { + case SSL_FORTEZZA_DMS_WITH_NULL_SHA: + case SSL_FORTEZZA_DMS_WITH_FORTEZZA_CBC_SHA: + case SSL_FORTEZZA_DMS_WITH_RC4_128_SHA: + return PR_TRUE; + default: + return PR_FALSE; + } +} + +/* Part of the public NSS API. + * Since this is a global (not per-socket) setting, we cannot use the + * HandshakeLock to protect this. Probably want a global lock. + */ +SECStatus +SSL_SetPolicy(long which, int policy) +{ + if ((which & 0xfffe) == SSL_RSA_OLDFIPS_WITH_3DES_EDE_CBC_SHA) { + /* one of the two old FIPS ciphers */ + if (which == SSL_RSA_OLDFIPS_WITH_3DES_EDE_CBC_SHA) + which = SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA; + else if (which == SSL_RSA_OLDFIPS_WITH_DES_CBC_SHA) + which = SSL_RSA_FIPS_WITH_DES_CBC_SHA; + } + if (ssl_IsRemovedCipherSuite(which)) + return SECSuccess; + return SSL_CipherPolicySet(which, policy); +} + +SECStatus +SSL_CipherPolicySet(PRInt32 which, PRInt32 policy) +{ + SECStatus rv = ssl_Init(); + + if (rv != SECSuccess) { + return rv; + } + + if (ssl_IsRemovedCipherSuite(which)) { + rv = SECSuccess; + } else if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_SetPolicy(which, policy); + } else { + rv = ssl3_SetPolicy((ssl3CipherSuite)which, policy); + } + return rv; +} + +SECStatus +SSL_CipherPolicyGet(PRInt32 which, PRInt32 *oPolicy) +{ + SECStatus rv; + + if (!oPolicy) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (ssl_IsRemovedCipherSuite(which)) { + *oPolicy = SSL_NOT_ALLOWED; + rv = SECSuccess; + } else if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_GetPolicy(which, oPolicy); + } else { + rv = ssl3_GetPolicy((ssl3CipherSuite)which, oPolicy); + } + return rv; +} + +/* Part of the public NSS API. + * Since this is a global (not per-socket) setting, we cannot use the + * HandshakeLock to protect this. Probably want a global lock. + * These changes have no effect on any sslSockets already created. + */ +SECStatus +SSL_EnableCipher(long which, PRBool enabled) +{ + if ((which & 0xfffe) == SSL_RSA_OLDFIPS_WITH_3DES_EDE_CBC_SHA) { + /* one of the two old FIPS ciphers */ + if (which == SSL_RSA_OLDFIPS_WITH_3DES_EDE_CBC_SHA) + which = SSL_RSA_FIPS_WITH_3DES_EDE_CBC_SHA; + else if (which == SSL_RSA_OLDFIPS_WITH_DES_CBC_SHA) + which = SSL_RSA_FIPS_WITH_DES_CBC_SHA; + } + if (ssl_IsRemovedCipherSuite(which)) + return SECSuccess; + return SSL_CipherPrefSetDefault(which, enabled); +} + +SECStatus +SSL_CipherPrefSetDefault(PRInt32 which, PRBool enabled) +{ + SECStatus rv = ssl_Init(); + + if (rv != SECSuccess) { + return rv; + } + + if (ssl_IsRemovedCipherSuite(which)) + return SECSuccess; + if (enabled && ssl_defaults.noStepDown && SSL_IsExportCipherSuite(which)) { + PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); + return SECFailure; + } + if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_CipherPrefSetDefault(which, enabled); + } else { + rv = ssl3_CipherPrefSetDefault((ssl3CipherSuite)which, enabled); + } + return rv; +} + +SECStatus +SSL_CipherPrefGetDefault(PRInt32 which, PRBool *enabled) +{ + SECStatus rv; + + if (!enabled) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (ssl_IsRemovedCipherSuite(which)) { + *enabled = PR_FALSE; + rv = SECSuccess; + } else if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_CipherPrefGetDefault(which, enabled); + } else { + rv = ssl3_CipherPrefGetDefault((ssl3CipherSuite)which, enabled); + } + return rv; +} + +SECStatus +SSL_CipherPrefSet(PRFileDesc *fd, PRInt32 which, PRBool enabled) +{ + SECStatus rv; + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in CipherPrefSet", SSL_GETPID(), fd)); + return SECFailure; + } + if (ssl_IsRemovedCipherSuite(which)) + return SECSuccess; + if (enabled && ss->opt.noStepDown && SSL_IsExportCipherSuite(which)) { + PORT_SetError(SEC_ERROR_INVALID_ALGORITHM); + return SECFailure; + } + if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_CipherPrefSet(ss, which, enabled); + } else { + rv = ssl3_CipherPrefSet(ss, (ssl3CipherSuite)which, enabled); + } + return rv; +} + +SECStatus +SSL_CipherPrefGet(PRFileDesc *fd, PRInt32 which, PRBool *enabled) +{ + SECStatus rv; + sslSocket *ss = ssl_FindSocket(fd); + + if (!enabled) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in CipherPrefGet", SSL_GETPID(), fd)); + *enabled = PR_FALSE; + return SECFailure; + } + if (ssl_IsRemovedCipherSuite(which)) { + *enabled = PR_FALSE; + rv = SECSuccess; + } else if (SSL_IS_SSL2_CIPHER(which)) { + rv = ssl2_CipherPrefGet(ss, which, enabled); + } else { + rv = ssl3_CipherPrefGet(ss, (ssl3CipherSuite)which, enabled); + } + return rv; +} + +SECStatus +NSS_SetDomesticPolicy(void) +{ + SECStatus status = SECSuccess; + cipherPolicy * policy; + + for (policy = ssl_ciphers; policy->cipher != 0; ++policy) { + status = SSL_SetPolicy(policy->cipher, SSL_ALLOWED); + if (status != SECSuccess) + break; + } + return status; +} + +SECStatus +NSS_SetExportPolicy(void) +{ + return NSS_SetDomesticPolicy(); +} + +SECStatus +NSS_SetFrancePolicy(void) +{ + return NSS_SetDomesticPolicy(); +} + +SECStatus +SSL_GetChannelBinding(PRFileDesc *fd, + SSLChannelBindingType binding_type, + unsigned char *out, + unsigned int *outLen, + unsigned int outLenMax) { + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_GetChannelBinding", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (binding_type != SSL_CHANNEL_BINDING_TLS_UNIQUE) { + PORT_SetError(PR_INVALID_ARGUMENT_ERROR); + return SECFailure; + } + + return ssl3_GetTLSUniqueChannelBinding(ss, out, outLen, outLenMax); +} + + +/* LOCKS ??? XXX */ +static PRFileDesc * +ssl_ImportFD(PRFileDesc *model, PRFileDesc *fd, SSLProtocolVariant variant) +{ + sslSocket * ns = NULL; + PRStatus rv; + PRNetAddr addr; + SECStatus status = ssl_Init(); + + if (status != SECSuccess) { + return NULL; + } + + if (model == NULL) { + /* Just create a default socket if we're given NULL for the model */ + ns = ssl_NewSocket((PRBool)(!ssl_defaults.noLocks), variant); + } else { + sslSocket * ss = ssl_FindSocket(model); + if (ss == NULL || ss->protocolVariant != variant) { + SSL_DBG(("%d: SSL[%d]: bad model socket in ssl_ImportFD", + SSL_GETPID(), model)); + return NULL; + } + ns = ssl_DupSocket(ss); + } + if (ns == NULL) + return NULL; + + rv = ssl_PushIOLayer(ns, fd, PR_TOP_IO_LAYER); + if (rv != PR_SUCCESS) { + ssl_FreeSocket(ns); + SET_ERROR_CODE + return NULL; + } + ns = ssl_FindSocket(fd); + PORT_Assert(ns); + if (ns) + ns->TCPconnected = (PR_SUCCESS == ssl_DefGetpeername(ns, &addr)); + return fd; +} + +PRFileDesc * +SSL_ImportFD(PRFileDesc *model, PRFileDesc *fd) +{ + return ssl_ImportFD(model, fd, ssl_variant_stream); +} + +PRFileDesc * +DTLS_ImportFD(PRFileDesc *model, PRFileDesc *fd) +{ + return ssl_ImportFD(model, fd, ssl_variant_datagram); +} + +SECStatus +SSL_SetNextProtoCallback(PRFileDesc *fd, SSLNextProtoCallback callback, + void *arg) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_SetNextProtoCallback", SSL_GETPID(), + fd)); + return SECFailure; + } + + ssl_GetSSL3HandshakeLock(ss); + ss->nextProtoCallback = callback; + ss->nextProtoArg = arg; + ssl_ReleaseSSL3HandshakeLock(ss); + + return SECSuccess; +} + +/* ssl_NextProtoNegoCallback is set as an NPN callback for the case when + * SSL_SetNextProtoNego is used. + */ +static SECStatus +ssl_NextProtoNegoCallback(void *arg, PRFileDesc *fd, + const unsigned char *protos, unsigned int protos_len, + unsigned char *protoOut, unsigned int *protoOutLen, + unsigned int protoMaxLen) +{ + unsigned int i, j; + const unsigned char *result; + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in ssl_NextProtoNegoCallback", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (protos_len == 0) { + /* The server supports the extension, but doesn't have any protocols + * configured. In this case we request our favoured protocol. */ + goto pick_first; + } + + /* For each protocol in server preference, see if we support it. */ + for (i = 0; i < protos_len; ) { + for (j = 0; j < ss->opt.nextProtoNego.len; ) { + if (protos[i] == ss->opt.nextProtoNego.data[j] && + PORT_Memcmp(&protos[i+1], &ss->opt.nextProtoNego.data[j+1], + protos[i]) == 0) { + /* We found a match. */ + ss->ssl3.nextProtoState = SSL_NEXT_PROTO_NEGOTIATED; + result = &protos[i]; + goto found; + } + j += 1 + (unsigned int)ss->opt.nextProtoNego.data[j]; + } + i += 1 + (unsigned int)protos[i]; + } + +pick_first: + ss->ssl3.nextProtoState = SSL_NEXT_PROTO_NO_OVERLAP; + result = ss->opt.nextProtoNego.data; + +found: + if (protoMaxLen < result[0]) { + PORT_SetError(SEC_ERROR_OUTPUT_LEN); + return SECFailure; + } + memcpy(protoOut, result + 1, result[0]); + *protoOutLen = result[0]; + return SECSuccess; +} + +SECStatus +SSL_SetNextProtoNego(PRFileDesc *fd, const unsigned char *data, + unsigned int length) +{ + sslSocket *ss; + SECStatus rv; + SECItem dataItem = { siBuffer, (unsigned char *) data, length }; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_SetNextProtoNego", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (ssl3_ValidateNextProtoNego(data, length) != SECSuccess) + return SECFailure; + + ssl_GetSSL3HandshakeLock(ss); + SECITEM_FreeItem(&ss->opt.nextProtoNego, PR_FALSE); + rv = SECITEM_CopyItem(NULL, &ss->opt.nextProtoNego, &dataItem); + ssl_ReleaseSSL3HandshakeLock(ss); + + if (rv != SECSuccess) + return rv; + + return SSL_SetNextProtoCallback(fd, ssl_NextProtoNegoCallback, NULL); +} + +SECStatus +SSL_GetNextProto(PRFileDesc *fd, SSLNextProtoState *state, unsigned char *buf, + unsigned int *bufLen, unsigned int bufLenMax) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_GetNextProto", SSL_GETPID(), + fd)); + return SECFailure; + } + + if (!state || !buf || !bufLen) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + *state = ss->ssl3.nextProtoState; + + if (ss->ssl3.nextProtoState != SSL_NEXT_PROTO_NO_SUPPORT && + ss->ssl3.nextProto.data) { + if (ss->ssl3.nextProto.len > bufLenMax) { + PORT_SetError(SEC_ERROR_OUTPUT_LEN); + return SECFailure; + } + PORT_Memcpy(buf, ss->ssl3.nextProto.data, ss->ssl3.nextProto.len); + *bufLen = ss->ssl3.nextProto.len; + } else { + *bufLen = 0; + } + + return SECSuccess; +} + +SECStatus SSL_SetSRTPCiphers(PRFileDesc *fd, + const PRUint16 *ciphers, + unsigned int numCiphers) +{ + sslSocket *ss; + unsigned int i; + + ss = ssl_FindSocket(fd); + if (!ss || !IS_DTLS(ss)) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_SetSRTPCiphers", + SSL_GETPID(), fd)); + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + if (numCiphers > MAX_DTLS_SRTP_CIPHER_SUITES) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + ss->ssl3.dtlsSRTPCipherCount = 0; + for (i = 0; i < numCiphers; i++) { + const PRUint16 *srtpCipher = srtpCiphers; + + while (*srtpCipher) { + if (ciphers[i] == *srtpCipher) + break; + srtpCipher++; + } + if (*srtpCipher) { + ss->ssl3.dtlsSRTPCiphers[ss->ssl3.dtlsSRTPCipherCount++] = + ciphers[i]; + } else { + SSL_DBG(("%d: SSL[%d]: invalid or unimplemented SRTP cipher " + "suite specified: 0x%04hx", SSL_GETPID(), fd, + ciphers[i])); + } + } + + if (ss->ssl3.dtlsSRTPCipherCount == 0) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + return SECSuccess; +} + +SECStatus +SSL_GetSRTPCipher(PRFileDesc *fd, PRUint16 *cipher) +{ + sslSocket * ss; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_GetSRTPCipher", + SSL_GETPID(), fd)); + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + if (!ss->ssl3.dtlsSRTPCipherSuite) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + *cipher = ss->ssl3.dtlsSRTPCipherSuite; + return SECSuccess; +} + +PRFileDesc * +SSL_ReconfigFD(PRFileDesc *model, PRFileDesc *fd) +{ + PORT_SetError(PR_NOT_IMPLEMENTED_ERROR); + PR_NOT_REACHED("not implemented"); + return NULL; + +#if 0 + sslSocket * sm = NULL, *ss = NULL; + int i; + sslServerCerts * mc = NULL; + sslServerCerts * sc = NULL; + + if (model == NULL) { + PR_SetError(SEC_ERROR_INVALID_ARGS, 0); + return NULL; + } + sm = ssl_FindSocket(model); + if (sm == NULL) { + SSL_DBG(("%d: SSL[%d]: bad model socket in ssl_ReconfigFD", + SSL_GETPID(), model)); + return NULL; + } + ss = ssl_FindSocket(fd); + PORT_Assert(ss); + if (ss == NULL) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return NULL; + } + + ss->opt = sm->opt; + ss->vrange = sm->vrange; + PORT_Memcpy(ss->cipherSuites, sm->cipherSuites, sizeof sm->cipherSuites); + PORT_Memcpy(ss->ssl3.dtlsSRTPCiphers, sm->ssl3.dtlsSRTPCiphers, + sizeof(PRUint16) * sm->ssl3.dtlsSRTPCipherCount); + ss->ssl3.dtlsSRTPCipherCount = sm->ssl3.dtlsSRTPCipherCount; + + if (!ss->opt.useSecurity) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return NULL; + } + /* This int should be SSLKEAType, but CC on Irix complains, + * during the for loop. + */ + for (i=kt_null; i < kt_kea_size; i++) { + mc = &(sm->serverCerts[i]); + sc = &(ss->serverCerts[i]); + if (mc->serverCert && mc->serverCertChain) { + if (sc->serverCert) { + CERT_DestroyCertificate(sc->serverCert); + } + sc->serverCert = CERT_DupCertificate(mc->serverCert); + if (sc->serverCertChain) { + CERT_DestroyCertificateList(sc->serverCertChain); + } + sc->serverCertChain = CERT_DupCertList(mc->serverCertChain); + if (!sc->serverCertChain) + goto loser; + if (sm->certStatusArray[i]) { + if (ss->certStatusArray[i]) { + SECITEM_FreeArray(ss->certStatusArray[i], PR_TRUE); + ss->certStatusArray[i] = NULL; + } + ss->certStatusArray[i] = SECITEM_DupArray(NULL, sm->certStatusArray[i]); + if (!ss->certStatusArray[i]) + goto loser; + } + } + if (mc->serverKeyPair) { + if (sc->serverKeyPair) { + ssl3_FreeKeyPair(sc->serverKeyPair); + } + sc->serverKeyPair = ssl3_GetKeyPairRef(mc->serverKeyPair); + sc->serverKeyBits = mc->serverKeyBits; + } + } + if (sm->stepDownKeyPair) { + if (ss->stepDownKeyPair) { + ssl3_FreeKeyPair(ss->stepDownKeyPair); + } + ss->stepDownKeyPair = ssl3_GetKeyPairRef(sm->stepDownKeyPair); + } + if (sm->ephemeralECDHKeyPair) { + if (ss->ephemeralECDHKeyPair) { + ssl3_FreeKeyPair(ss->ephemeralECDHKeyPair); + } + ss->ephemeralECDHKeyPair = + ssl3_GetKeyPairRef(sm->ephemeralECDHKeyPair); + } + /* copy trust anchor names */ + if (sm->ssl3.ca_list) { + if (ss->ssl3.ca_list) { + CERT_FreeDistNames(ss->ssl3.ca_list); + } + ss->ssl3.ca_list = CERT_DupDistNames(sm->ssl3.ca_list); + if (!ss->ssl3.ca_list) { + goto loser; + } + } + + if (sm->authCertificate) + ss->authCertificate = sm->authCertificate; + if (sm->authCertificateArg) + ss->authCertificateArg = sm->authCertificateArg; + if (sm->getClientAuthData) + ss->getClientAuthData = sm->getClientAuthData; + if (sm->getClientAuthDataArg) + ss->getClientAuthDataArg = sm->getClientAuthDataArg; +#ifdef NSS_PLATFORM_CLIENT_AUTH + if (sm->getPlatformClientAuthData) + ss->getPlatformClientAuthData = sm->getPlatformClientAuthData; + if (sm->getPlatformClientAuthDataArg) + ss->getPlatformClientAuthDataArg = sm->getPlatformClientAuthDataArg; +#endif + if (sm->sniSocketConfig) + ss->sniSocketConfig = sm->sniSocketConfig; + if (sm->sniSocketConfigArg) + ss->sniSocketConfigArg = sm->sniSocketConfigArg; + if (sm->handleBadCert) + ss->handleBadCert = sm->handleBadCert; + if (sm->badCertArg) + ss->badCertArg = sm->badCertArg; + if (sm->handshakeCallback) + ss->handshakeCallback = sm->handshakeCallback; + if (sm->handshakeCallbackData) + ss->handshakeCallbackData = sm->handshakeCallbackData; + if (sm->pkcs11PinArg) + ss->pkcs11PinArg = sm->pkcs11PinArg; + if (sm->getChannelID) + ss->getChannelID = sm->getChannelID; + if (sm->getChannelIDArg) + ss->getChannelIDArg = sm->getChannelIDArg; + return fd; +loser: + return NULL; +#endif +} + +PRBool +ssl3_VersionIsSupported(SSLProtocolVariant protocolVariant, + SSL3ProtocolVersion version) +{ + switch (protocolVariant) { + case ssl_variant_stream: + return (version >= SSL_LIBRARY_VERSION_3_0 && + version <= SSL_LIBRARY_VERSION_MAX_SUPPORTED); + case ssl_variant_datagram: + return (version >= SSL_LIBRARY_VERSION_TLS_1_1 && + version <= SSL_LIBRARY_VERSION_MAX_SUPPORTED); + default: + /* Can't get here */ + PORT_Assert(PR_FALSE); + return PR_FALSE; + } +} + +/* Returns PR_TRUE if the given version range is valid and +** fully supported; otherwise, returns PR_FALSE. +*/ +static PRBool +ssl3_VersionRangeIsValid(SSLProtocolVariant protocolVariant, + const SSLVersionRange *vrange) +{ + return vrange && + vrange->min <= vrange->max && + ssl3_VersionIsSupported(protocolVariant, vrange->min) && + ssl3_VersionIsSupported(protocolVariant, vrange->max); +} + +SECStatus +SSL_VersionRangeGetSupported(SSLProtocolVariant protocolVariant, + SSLVersionRange *vrange) +{ + if (!vrange) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + switch (protocolVariant) { + case ssl_variant_stream: + vrange->min = SSL_LIBRARY_VERSION_3_0; + vrange->max = SSL_LIBRARY_VERSION_MAX_SUPPORTED; + break; + case ssl_variant_datagram: + vrange->min = SSL_LIBRARY_VERSION_TLS_1_1; + vrange->max = SSL_LIBRARY_VERSION_MAX_SUPPORTED; + break; + default: + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + return SECSuccess; +} + +SECStatus +SSL_VersionRangeGetDefault(SSLProtocolVariant protocolVariant, + SSLVersionRange *vrange) +{ + if ((protocolVariant != ssl_variant_stream && + protocolVariant != ssl_variant_datagram) || !vrange) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + *vrange = *VERSIONS_DEFAULTS(protocolVariant); + + return SECSuccess; +} + +SECStatus +SSL_VersionRangeSetDefault(SSLProtocolVariant protocolVariant, + const SSLVersionRange *vrange) +{ + if (!ssl3_VersionRangeIsValid(protocolVariant, vrange)) { + PORT_SetError(SSL_ERROR_INVALID_VERSION_RANGE); + return SECFailure; + } + + *VERSIONS_DEFAULTS(protocolVariant) = *vrange; + + return SECSuccess; +} + +SECStatus +SSL_VersionRangeGet(PRFileDesc *fd, SSLVersionRange *vrange) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL3_VersionRangeGet", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (!vrange) { + PORT_SetError(SEC_ERROR_INVALID_ARGS); + return SECFailure; + } + + ssl_Get1stHandshakeLock(ss); + ssl_GetSSL3HandshakeLock(ss); + + *vrange = ss->vrange; + + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_Release1stHandshakeLock(ss); + + return SECSuccess; +} + +static PRCallOnceType checkTLS12TokenOnce; +static PRBool tls12TokenExists; + +static PRStatus +ssl_CheckTLS12Token(void) +{ + tls12TokenExists = + PK11_TokenExists(CKM_NSS_TLS_MASTER_KEY_DERIVE_DH_SHA256); + return PR_SUCCESS; +} + +static PRBool +ssl_TLS12TokenExists(void) +{ + (void) PR_CallOnce(&checkTLS12TokenOnce, ssl_CheckTLS12Token); + return tls12TokenExists; +} + +SECStatus +SSL_VersionRangeSet(PRFileDesc *fd, const SSLVersionRange *vrange) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL3_VersionRangeSet", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (!ssl3_VersionRangeIsValid(ss->protocolVariant, vrange)) { + PORT_SetError(SSL_ERROR_INVALID_VERSION_RANGE); + return SECFailure; + } + + ssl_Get1stHandshakeLock(ss); + ssl_GetSSL3HandshakeLock(ss); + + ss->vrange = *vrange; + /* If we don't have a sufficiently up-to-date softoken then we cannot do + * TLS 1.2. */ + if (ss->vrange.max >= SSL_LIBRARY_VERSION_TLS_1_2 && + !ssl_TLS12TokenExists()) { + /* If the user requested a minimum version of 1.2, then we don't + * silently downgrade. */ + if (ss->vrange.min >= SSL_LIBRARY_VERSION_TLS_1_2) { + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_Release1stHandshakeLock(ss); + PORT_SetError(SSL_ERROR_INVALID_VERSION_RANGE); + return SECFailure; + } + ss->vrange.max = SSL_LIBRARY_VERSION_TLS_1_1; + } + + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_Release1stHandshakeLock(ss); + + return SECSuccess; +} + +const SECItemArray * +SSL_PeerStapledOCSPResponses(PRFileDesc *fd) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_PeerStapledOCSPResponses", + SSL_GETPID(), fd)); + return NULL; + } + + if (!ss->sec.ci.sid) { + PORT_SetError(SEC_ERROR_NOT_INITIALIZED); + return NULL; + } + + return &ss->sec.ci.sid->peerCertStatus; +} + +SECStatus +SSL_HandshakeResumedSession(PRFileDesc *fd, PRBool *handshake_resumed) { + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_HandshakeResumedSession", + SSL_GETPID(), fd)); + return SECFailure; + } + + *handshake_resumed = ss->ssl3.hs.isResuming; + return SECSuccess; +} + +const SECItem * +SSL_GetRequestedClientCertificateTypes(PRFileDesc *fd) +{ + sslSocket *ss = ssl_FindSocket(fd); + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in " + "SSL_GetRequestedClientCertificateTypes", SSL_GETPID(), fd)); + return NULL; + } + + return ss->requestedCertTypes; +} + +/************************************************************************/ +/* The following functions are the TOP LEVEL SSL functions. +** They all get called through the NSPRIOMethods table below. +*/ + +static PRFileDesc * PR_CALLBACK +ssl_Accept(PRFileDesc *fd, PRNetAddr *sockaddr, PRIntervalTime timeout) +{ + sslSocket *ss; + sslSocket *ns = NULL; + PRFileDesc *newfd = NULL; + PRFileDesc *osfd; + PRStatus status; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in accept", SSL_GETPID(), fd)); + return NULL; + } + + /* IF this is a listen socket, there shouldn't be any I/O going on */ + SSL_LOCK_READER(ss); + SSL_LOCK_WRITER(ss); + ssl_Get1stHandshakeLock(ss); + ssl_GetSSL3HandshakeLock(ss); + + ss->cTimeout = timeout; + + osfd = ss->fd->lower; + + /* First accept connection */ + newfd = osfd->methods->accept(osfd, sockaddr, timeout); + if (newfd == NULL) { + SSL_DBG(("%d: SSL[%d]: accept failed, errno=%d", + SSL_GETPID(), ss->fd, PORT_GetError())); + } else { + /* Create ssl module */ + ns = ssl_DupSocket(ss); + } + + ssl_ReleaseSSL3HandshakeLock(ss); + ssl_Release1stHandshakeLock(ss); + SSL_UNLOCK_WRITER(ss); + SSL_UNLOCK_READER(ss); /* ss isn't used below here. */ + + if (ns == NULL) + goto loser; + + /* push ssl module onto the new socket */ + status = ssl_PushIOLayer(ns, newfd, PR_TOP_IO_LAYER); + if (status != PR_SUCCESS) + goto loser; + + /* Now start server connection handshake with client. + ** Don't need locks here because nobody else has a reference to ns yet. + */ + if ( ns->opt.useSecurity ) { + if ( ns->opt.handshakeAsClient ) { + ns->handshake = ssl2_BeginClientHandshake; + ss->handshaking = sslHandshakingAsClient; + } else { + ns->handshake = ssl2_BeginServerHandshake; + ss->handshaking = sslHandshakingAsServer; + } + } + ns->TCPconnected = 1; + return newfd; + +loser: + if (ns != NULL) + ssl_FreeSocket(ns); + if (newfd != NULL) + PR_Close(newfd); + return NULL; +} + +static PRStatus PR_CALLBACK +ssl_Connect(PRFileDesc *fd, const PRNetAddr *sockaddr, PRIntervalTime timeout) +{ + sslSocket *ss; + PRStatus rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in connect", SSL_GETPID(), fd)); + return PR_FAILURE; + } + + /* IF this is a listen socket, there shouldn't be any I/O going on */ + SSL_LOCK_READER(ss); + SSL_LOCK_WRITER(ss); + + ss->cTimeout = timeout; + rv = (PRStatus)(*ss->ops->connect)(ss, sockaddr); + + SSL_UNLOCK_WRITER(ss); + SSL_UNLOCK_READER(ss); + + return rv; +} + +static PRStatus PR_CALLBACK +ssl_Bind(PRFileDesc *fd, const PRNetAddr *addr) +{ + sslSocket * ss = ssl_GetPrivate(fd); + PRStatus rv; + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in bind", SSL_GETPID(), fd)); + return PR_FAILURE; + } + SSL_LOCK_READER(ss); + SSL_LOCK_WRITER(ss); + + rv = (PRStatus)(*ss->ops->bind)(ss, addr); + + SSL_UNLOCK_WRITER(ss); + SSL_UNLOCK_READER(ss); + return rv; +} + +static PRStatus PR_CALLBACK +ssl_Listen(PRFileDesc *fd, PRIntn backlog) +{ + sslSocket * ss = ssl_GetPrivate(fd); + PRStatus rv; + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in listen", SSL_GETPID(), fd)); + return PR_FAILURE; + } + SSL_LOCK_READER(ss); + SSL_LOCK_WRITER(ss); + + rv = (PRStatus)(*ss->ops->listen)(ss, backlog); + + SSL_UNLOCK_WRITER(ss); + SSL_UNLOCK_READER(ss); + return rv; +} + +static PRStatus PR_CALLBACK +ssl_Shutdown(PRFileDesc *fd, PRIntn how) +{ + sslSocket * ss = ssl_GetPrivate(fd); + PRStatus rv; + + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in shutdown", SSL_GETPID(), fd)); + return PR_FAILURE; + } + if (how == PR_SHUTDOWN_RCV || how == PR_SHUTDOWN_BOTH) { + SSL_LOCK_READER(ss); + } + if (how == PR_SHUTDOWN_SEND || how == PR_SHUTDOWN_BOTH) { + SSL_LOCK_WRITER(ss); + } + + rv = (PRStatus)(*ss->ops->shutdown)(ss, how); + + if (how == PR_SHUTDOWN_SEND || how == PR_SHUTDOWN_BOTH) { + SSL_UNLOCK_WRITER(ss); + } + if (how == PR_SHUTDOWN_RCV || how == PR_SHUTDOWN_BOTH) { + SSL_UNLOCK_READER(ss); + } + return rv; +} + +static PRStatus PR_CALLBACK +ssl_Close(PRFileDesc *fd) +{ + sslSocket *ss; + PRStatus rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in close", SSL_GETPID(), fd)); + return PR_FAILURE; + } + + /* There must not be any I/O going on */ + SSL_LOCK_READER(ss); + SSL_LOCK_WRITER(ss); + + /* By the time this function returns, + ** ss is an invalid pointer, and the locks to which it points have + ** been unlocked and freed. So, this is the ONE PLACE in all of SSL + ** where the LOCK calls and the corresponding UNLOCK calls are not in + ** the same function scope. The unlock calls are in ssl_FreeSocket(). + */ + rv = (PRStatus)(*ss->ops->close)(ss); + + return rv; +} + +static int PR_CALLBACK +ssl_Recv(PRFileDesc *fd, void *buf, PRInt32 len, PRIntn flags, + PRIntervalTime timeout) +{ + sslSocket *ss; + int rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in recv", SSL_GETPID(), fd)); + return SECFailure; + } + SSL_LOCK_READER(ss); + ss->rTimeout = timeout; + if (!ss->opt.fdx) + ss->wTimeout = timeout; + rv = (*ss->ops->recv)(ss, (unsigned char*)buf, len, flags); + SSL_UNLOCK_READER(ss); + return rv; +} + +static int PR_CALLBACK +ssl_Send(PRFileDesc *fd, const void *buf, PRInt32 len, PRIntn flags, + PRIntervalTime timeout) +{ + sslSocket *ss; + int rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in send", SSL_GETPID(), fd)); + return SECFailure; + } + SSL_LOCK_WRITER(ss); + ss->wTimeout = timeout; + if (!ss->opt.fdx) + ss->rTimeout = timeout; + rv = (*ss->ops->send)(ss, (const unsigned char*)buf, len, flags); + SSL_UNLOCK_WRITER(ss); + return rv; +} + +static int PR_CALLBACK +ssl_Read(PRFileDesc *fd, void *buf, PRInt32 len) +{ + sslSocket *ss; + int rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in read", SSL_GETPID(), fd)); + return SECFailure; + } + SSL_LOCK_READER(ss); + ss->rTimeout = PR_INTERVAL_NO_TIMEOUT; + if (!ss->opt.fdx) + ss->wTimeout = PR_INTERVAL_NO_TIMEOUT; + rv = (*ss->ops->read)(ss, (unsigned char*)buf, len); + SSL_UNLOCK_READER(ss); + return rv; +} + +static int PR_CALLBACK +ssl_Write(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + sslSocket *ss; + int rv; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in write", SSL_GETPID(), fd)); + return SECFailure; + } + SSL_LOCK_WRITER(ss); + ss->wTimeout = PR_INTERVAL_NO_TIMEOUT; + if (!ss->opt.fdx) + ss->rTimeout = PR_INTERVAL_NO_TIMEOUT; + rv = (*ss->ops->write)(ss, (const unsigned char*)buf, len); + SSL_UNLOCK_WRITER(ss); + return rv; +} + +static PRStatus PR_CALLBACK +ssl_GetPeerName(PRFileDesc *fd, PRNetAddr *addr) +{ + sslSocket *ss; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in getpeername", SSL_GETPID(), fd)); + return PR_FAILURE; + } + return (PRStatus)(*ss->ops->getpeername)(ss, addr); +} + +/* +*/ +SECStatus +ssl_GetPeerInfo(sslSocket *ss) +{ + PRFileDesc * osfd; + int rv; + PRNetAddr sin; + + osfd = ss->fd->lower; + + PORT_Memset(&sin, 0, sizeof(sin)); + rv = osfd->methods->getpeername(osfd, &sin); + if (rv < 0) { + return SECFailure; + } + ss->TCPconnected = 1; + if (sin.inet.family == PR_AF_INET) { + PR_ConvertIPv4AddrToIPv6(sin.inet.ip, &ss->sec.ci.peer); + ss->sec.ci.port = sin.inet.port; + } else if (sin.ipv6.family == PR_AF_INET6) { + ss->sec.ci.peer = sin.ipv6.ip; + ss->sec.ci.port = sin.ipv6.port; + } else { + PORT_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR); + return SECFailure; + } + return SECSuccess; +} + +static PRStatus PR_CALLBACK +ssl_GetSockName(PRFileDesc *fd, PRNetAddr *name) +{ + sslSocket *ss; + + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in getsockname", SSL_GETPID(), fd)); + return PR_FAILURE; + } + return (PRStatus)(*ss->ops->getsockname)(ss, name); +} + +SECStatus +SSL_SetStapledOCSPResponses(PRFileDesc *fd, const SECItemArray *responses, + SSLKEAType kea) +{ + sslSocket *ss; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_SetStapledOCSPResponses", + SSL_GETPID(), fd)); + return SECFailure; + } + + if ( kea <= 0 || kea >= kt_kea_size) { + SSL_DBG(("%d: SSL[%d]: invalid key in SSL_SetStapledOCSPResponses", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (ss->certStatusArray[kea]) { + SECITEM_FreeArray(ss->certStatusArray[kea], PR_TRUE); + ss->certStatusArray[kea] = NULL; + } + if (responses) { + ss->certStatusArray[kea] = SECITEM_DupArray(NULL, responses); + } + return (ss->certStatusArray[kea] || !responses) ? SECSuccess : SECFailure; +} + +SECStatus +SSL_SetSockPeerID(PRFileDesc *fd, const char *peerID) +{ + sslSocket *ss; + + ss = ssl_FindSocket(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_SetSockPeerID", + SSL_GETPID(), fd)); + return SECFailure; + } + + if (ss->peerID) { + PORT_Free(ss->peerID); + ss->peerID = NULL; + } + if (peerID) + ss->peerID = PORT_Strdup(peerID); + return (ss->peerID || !peerID) ? SECSuccess : SECFailure; +} + +#define PR_POLL_RW (PR_POLL_WRITE | PR_POLL_READ) + +static PRInt16 PR_CALLBACK +ssl_Poll(PRFileDesc *fd, PRInt16 how_flags, PRInt16 *p_out_flags) +{ + sslSocket *ss; + PRInt16 new_flags = how_flags; /* should select on these flags. */ + PRNetAddr addr; + + *p_out_flags = 0; + ss = ssl_GetPrivate(fd); + if (!ss) { + SSL_DBG(("%d: SSL[%d]: bad socket in SSL_Poll", + SSL_GETPID(), fd)); + return 0; /* don't poll on this socket */ + } + + if (ss->opt.useSecurity && + ss->handshaking != sslHandshakingUndetermined && + !ss->firstHsDone && + (how_flags & PR_POLL_RW)) { + if (!ss->TCPconnected) { + ss->TCPconnected = (PR_SUCCESS == ssl_DefGetpeername(ss, &addr)); + } + /* If it's not connected, then presumably the application is polling + ** on read or write appropriately, so don't change it. + */ + if (ss->TCPconnected) { + if (!ss->handshakeBegun) { + /* If the handshake has not begun, poll on read or write + ** based on the local application's role in the handshake, + ** not based on what the application requested. + */ + new_flags &= ~PR_POLL_RW; + if (ss->handshaking == sslHandshakingAsClient) { + new_flags |= PR_POLL_WRITE; + } else { /* handshaking as server */ + new_flags |= PR_POLL_READ; + } + } else + /* First handshake is in progress */ + if (ss->lastWriteBlocked) { + if (new_flags & PR_POLL_READ) { + /* The caller is waiting for data to be received, + ** but the initial handshake is blocked on write, or the + ** client's first handshake record has not been written. + ** The code should select on write, not read. + */ + new_flags ^= PR_POLL_READ; /* don't select on read. */ + new_flags |= PR_POLL_WRITE; /* do select on write. */ + } + } else if (new_flags & PR_POLL_WRITE) { + /* The caller is trying to write, but the handshake is + ** blocked waiting for data to read, and the first + ** handshake has been sent. so do NOT to poll on write. + */ + new_flags ^= PR_POLL_WRITE; /* don't select on write. */ + new_flags |= PR_POLL_READ; /* do select on read. */ + } + } + } else if ((new_flags & PR_POLL_READ) && (SSL_DataPending(fd) > 0)) { + *p_out_flags = PR_POLL_READ; /* it's ready already. */ + return new_flags; + } else if ((ss->lastWriteBlocked) && (how_flags & PR_POLL_READ) && + (ss->pendingBuf.len != 0)) { /* write data waiting to be sent */ + new_flags |= PR_POLL_WRITE; /* also select on write. */ + } + + if (ss->version >= SSL_LIBRARY_VERSION_3_0 && + ss->ssl3.hs.restartTarget != NULL) { + /* Read and write will block until the asynchronous callback completes + * (e.g. until SSL_AuthCertificateComplete is called), so don't tell + * the caller to poll the socket unless there is pending write data. + */ + if (ss->lastWriteBlocked && ss->pendingBuf.len != 0) { + /* Ignore any newly-received data on the socket, but do wait for + * the socket to become writable again. Here, it is OK for an error + * to be detected, because our logic for sending pending write data + * will allow us to report the error to the caller without the risk + * of the application spinning. + */ + new_flags &= (PR_POLL_WRITE | PR_POLL_EXCEPT); + } else { + /* Unfortunately, clearing new_flags will make it impossible for + * the application to detect errors that it would otherwise be + * able to detect with PR_POLL_EXCEPT, until the asynchronous + * callback completes. However, we must clear all the flags to + * prevent the application from spinning (alternating between + * calling PR_Poll that would return PR_POLL_EXCEPT, and send/recv + * which won't actually report the I/O error while we are waiting + * for the asynchronous callback to complete). + */ + new_flags = 0; + } + } + + if (new_flags && (fd->lower->methods->poll != NULL)) { + PRInt16 lower_out_flags = 0; + PRInt16 lower_new_flags; + lower_new_flags = fd->lower->methods->poll(fd->lower, new_flags, + &lower_out_flags); + if ((lower_new_flags & lower_out_flags) && (how_flags != new_flags)) { + PRInt16 out_flags = lower_out_flags & ~PR_POLL_RW; + if (lower_out_flags & PR_POLL_READ) + out_flags |= PR_POLL_WRITE; + if (lower_out_flags & PR_POLL_WRITE) + out_flags |= PR_POLL_READ; + *p_out_flags = out_flags; + new_flags = how_flags; + } else { + *p_out_flags = lower_out_flags; + new_flags = lower_new_flags; + } + } + + return new_flags; +} + +static PRInt32 PR_CALLBACK +ssl_TransmitFile(PRFileDesc *sd, PRFileDesc *fd, + const void *headers, PRInt32 hlen, + PRTransmitFileFlags flags, PRIntervalTime timeout) +{ + PRSendFileData sfd; + + sfd.fd = fd; + sfd.file_offset = 0; + sfd.file_nbytes = 0; + sfd.header = headers; + sfd.hlen = hlen; + sfd.trailer = NULL; + sfd.tlen = 0; + + return sd->methods->sendfile(sd, &sfd, flags, timeout); +} + + +PRBool +ssl_FdIsBlocking(PRFileDesc *fd) +{ + PRSocketOptionData opt; + PRStatus status; + + opt.option = PR_SockOpt_Nonblocking; + opt.value.non_blocking = PR_FALSE; + status = PR_GetSocketOption(fd, &opt); + if (status != PR_SUCCESS) + return PR_FALSE; + return (PRBool)!opt.value.non_blocking; +} + +PRBool +ssl_SocketIsBlocking(sslSocket *ss) +{ + return ssl_FdIsBlocking(ss->fd); +} + +PRInt32 sslFirstBufSize = 8 * 1024; +PRInt32 sslCopyLimit = 1024; + +static PRInt32 PR_CALLBACK +ssl_WriteV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 vectors, + PRIntervalTime timeout) +{ + PRInt32 bufLen; + PRInt32 left; + PRInt32 rv; + PRInt32 sent = 0; + const PRInt32 first_len = sslFirstBufSize; + const PRInt32 limit = sslCopyLimit; + PRBool blocking; + PRIOVec myIov = { 0, 0 }; + char buf[MAX_FRAGMENT_LENGTH]; + + if (vectors > PR_MAX_IOVECTOR_SIZE) { + PORT_SetError(PR_BUFFER_OVERFLOW_ERROR); + return -1; + } + blocking = ssl_FdIsBlocking(fd); + +#define K16 sizeof(buf) +#define KILL_VECTORS while (vectors && !iov->iov_len) { ++iov; --vectors; } +#define GET_VECTOR do { myIov = *iov++; --vectors; KILL_VECTORS } while (0) +#define HANDLE_ERR(rv, len) \ + if (rv != len) { \ + if (rv < 0) { \ + if (!blocking \ + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) \ + && (sent > 0)) { \ + return sent; \ + } else { \ + return -1; \ + } \ + } \ + /* Only a nonblocking socket can have partial sends */ \ + PR_ASSERT(!blocking); \ + return sent + rv; \ + } +#define SEND(bfr, len) \ + do { \ + rv = ssl_Send(fd, bfr, len, 0, timeout); \ + HANDLE_ERR(rv, len) \ + sent += len; \ + } while (0) + + /* Make sure the first write is at least 8 KB, if possible. */ + KILL_VECTORS + if (!vectors) + return ssl_Send(fd, 0, 0, 0, timeout); + GET_VECTOR; + if (!vectors) { + return ssl_Send(fd, myIov.iov_base, myIov.iov_len, 0, timeout); + } + if (myIov.iov_len < first_len) { + PORT_Memcpy(buf, myIov.iov_base, myIov.iov_len); + bufLen = myIov.iov_len; + left = first_len - bufLen; + while (vectors && left) { + int toCopy; + GET_VECTOR; + toCopy = PR_MIN(left, myIov.iov_len); + PORT_Memcpy(buf + bufLen, myIov.iov_base, toCopy); + bufLen += toCopy; + left -= toCopy; + myIov.iov_base += toCopy; + myIov.iov_len -= toCopy; + } + SEND( buf, bufLen ); + } + + while (vectors || myIov.iov_len) { + PRInt32 addLen; + if (!myIov.iov_len) { + GET_VECTOR; + } + while (myIov.iov_len >= K16) { + SEND(myIov.iov_base, K16); + myIov.iov_base += K16; + myIov.iov_len -= K16; + } + if (!myIov.iov_len) + continue; + + if (!vectors || myIov.iov_len > limit) { + addLen = 0; + } else if ((addLen = iov->iov_len % K16) + myIov.iov_len <= limit) { + /* Addlen is already computed. */; + } else if (vectors > 1 && + iov[1].iov_len % K16 + addLen + myIov.iov_len <= 2 * limit) { + addLen = limit - myIov.iov_len; + } else + addLen = 0; + + if (!addLen) { + SEND( myIov.iov_base, myIov.iov_len ); + myIov.iov_len = 0; + continue; + } + PORT_Memcpy(buf, myIov.iov_base, myIov.iov_len); + bufLen = myIov.iov_len; + do { + GET_VECTOR; + PORT_Memcpy(buf + bufLen, myIov.iov_base, addLen); + myIov.iov_base += addLen; + myIov.iov_len -= addLen; + bufLen += addLen; + + left = PR_MIN( limit, K16 - bufLen); + if (!vectors /* no more left */ + || myIov.iov_len > 0 /* we didn't use that one all up */ + || bufLen >= K16 /* it's full. */ + ) { + addLen = 0; + } else if ((addLen = iov->iov_len % K16) <= left) { + /* Addlen is already computed. */; + } else if (vectors > 1 && + iov[1].iov_len % K16 + addLen <= left + limit) { + addLen = left; + } else + addLen = 0; + + } while (addLen); + SEND( buf, bufLen ); + } + return sent; +} + +/* + * These functions aren't implemented. + */ + +static PRInt32 PR_CALLBACK +ssl_Available(PRFileDesc *fd) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return SECFailure; +} + +static PRInt64 PR_CALLBACK +ssl_Available64(PRFileDesc *fd) +{ + PRInt64 res; + + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + LL_I2L(res, -1L); + return res; +} + +static PRStatus PR_CALLBACK +ssl_FSync(PRFileDesc *fd) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +static PRInt32 PR_CALLBACK +ssl_Seek(PRFileDesc *fd, PRInt32 offset, PRSeekWhence how) { + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return SECFailure; +} + +static PRInt64 PR_CALLBACK +ssl_Seek64(PRFileDesc *fd, PRInt64 offset, PRSeekWhence how) { + PRInt64 res; + + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + LL_I2L(res, -1L); + return res; +} + +static PRStatus PR_CALLBACK +ssl_FileInfo(PRFileDesc *fd, PRFileInfo *info) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +static PRStatus PR_CALLBACK +ssl_FileInfo64(PRFileDesc *fd, PRFileInfo64 *info) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +} + +static PRInt32 PR_CALLBACK +ssl_RecvFrom(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRIntervalTime timeout) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return SECFailure; +} + +static PRInt32 PR_CALLBACK +ssl_SendTo(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRIntervalTime timeout) +{ + PORT_Assert(0); + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return SECFailure; +} + +static const PRIOMethods ssl_methods = { + PR_DESC_LAYERED, + ssl_Close, /* close */ + ssl_Read, /* read */ + ssl_Write, /* write */ + ssl_Available, /* available */ + ssl_Available64, /* available64 */ + ssl_FSync, /* fsync */ + ssl_Seek, /* seek */ + ssl_Seek64, /* seek64 */ + ssl_FileInfo, /* fileInfo */ + ssl_FileInfo64, /* fileInfo64 */ + ssl_WriteV, /* writev */ + ssl_Connect, /* connect */ + ssl_Accept, /* accept */ + ssl_Bind, /* bind */ + ssl_Listen, /* listen */ + ssl_Shutdown, /* shutdown */ + ssl_Recv, /* recv */ + ssl_Send, /* send */ + ssl_RecvFrom, /* recvfrom */ + ssl_SendTo, /* sendto */ + ssl_Poll, /* poll */ + PR_EmulateAcceptRead, /* acceptread */ + ssl_TransmitFile, /* transmitfile */ + ssl_GetSockName, /* getsockname */ + ssl_GetPeerName, /* getpeername */ + NULL, /* getsockopt OBSOLETE */ + NULL, /* setsockopt OBSOLETE */ + NULL, /* getsocketoption */ + NULL, /* setsocketoption */ + PR_EmulateSendFile, /* Send a (partial) file with header/trailer*/ + NULL, /* reserved for future use */ + NULL, /* reserved for future use */ + NULL, /* reserved for future use */ + NULL, /* reserved for future use */ + NULL /* reserved for future use */ +}; + + +static PRIOMethods combined_methods; + +static void +ssl_SetupIOMethods(void) +{ + PRIOMethods *new_methods = &combined_methods; + const PRIOMethods *nspr_methods = PR_GetDefaultIOMethods(); + const PRIOMethods *my_methods = &ssl_methods; + + *new_methods = *nspr_methods; + + new_methods->file_type = my_methods->file_type; + new_methods->close = my_methods->close; + new_methods->read = my_methods->read; + new_methods->write = my_methods->write; + new_methods->available = my_methods->available; + new_methods->available64 = my_methods->available64; + new_methods->fsync = my_methods->fsync; + new_methods->seek = my_methods->seek; + new_methods->seek64 = my_methods->seek64; + new_methods->fileInfo = my_methods->fileInfo; + new_methods->fileInfo64 = my_methods->fileInfo64; + new_methods->writev = my_methods->writev; + new_methods->connect = my_methods->connect; + new_methods->accept = my_methods->accept; + new_methods->bind = my_methods->bind; + new_methods->listen = my_methods->listen; + new_methods->shutdown = my_methods->shutdown; + new_methods->recv = my_methods->recv; + new_methods->send = my_methods->send; + new_methods->recvfrom = my_methods->recvfrom; + new_methods->sendto = my_methods->sendto; + new_methods->poll = my_methods->poll; + new_methods->acceptread = my_methods->acceptread; + new_methods->transmitfile = my_methods->transmitfile; + new_methods->getsockname = my_methods->getsockname; + new_methods->getpeername = my_methods->getpeername; +/* new_methods->getsocketoption = my_methods->getsocketoption; */ +/* new_methods->setsocketoption = my_methods->setsocketoption; */ + new_methods->sendfile = my_methods->sendfile; + +} + +static PRCallOnceType initIoLayerOnce; + +static PRStatus +ssl_InitIOLayer(void) +{ + ssl_layer_id = PR_GetUniqueIdentity("SSL"); + ssl_SetupIOMethods(); + ssl_inited = PR_TRUE; + return PR_SUCCESS; +} + +static PRStatus +ssl_PushIOLayer(sslSocket *ns, PRFileDesc *stack, PRDescIdentity id) +{ + PRFileDesc *layer = NULL; + PRStatus status; + + if (!ssl_inited) { + status = PR_CallOnce(&initIoLayerOnce, &ssl_InitIOLayer); + if (status != PR_SUCCESS) + goto loser; + } + + if (ns == NULL) + goto loser; + + layer = PR_CreateIOLayerStub(ssl_layer_id, &combined_methods); + if (layer == NULL) + goto loser; + layer->secret = (PRFilePrivate *)ns; + + /* Here, "stack" points to the PRFileDesc on the top of the stack. + ** "layer" points to a new FD that is to be inserted into the stack. + ** If layer is being pushed onto the top of the stack, then + ** PR_PushIOLayer switches the contents of stack and layer, and then + ** puts stack on top of layer, so that after it is done, the top of + ** stack is the same "stack" as it was before, and layer is now the + ** FD for the former top of stack. + ** After this call, stack always points to the top PRFD on the stack. + ** If this function fails, the contents of stack and layer are as + ** they were before the call. + */ + status = PR_PushIOLayer(stack, id, layer); + if (status != PR_SUCCESS) + goto loser; + + ns->fd = (id == PR_TOP_IO_LAYER) ? stack : layer; + return PR_SUCCESS; + +loser: + if (layer) { + layer->dtor(layer); /* free layer */ + } + return PR_FAILURE; +} + +/* if this fails, caller must destroy socket. */ +static SECStatus +ssl_MakeLocks(sslSocket *ss) +{ + ss->firstHandshakeLock = PZ_NewMonitor(nssILockSSL); + if (!ss->firstHandshakeLock) + goto loser; + ss->ssl3HandshakeLock = PZ_NewMonitor(nssILockSSL); + if (!ss->ssl3HandshakeLock) + goto loser; + ss->specLock = NSSRWLock_New(SSL_LOCK_RANK_SPEC, NULL); + if (!ss->specLock) + goto loser; + ss->recvBufLock = PZ_NewMonitor(nssILockSSL); + if (!ss->recvBufLock) + goto loser; + ss->xmitBufLock = PZ_NewMonitor(nssILockSSL); + if (!ss->xmitBufLock) + goto loser; + ss->writerThread = NULL; + if (ssl_lock_readers) { + ss->recvLock = PZ_NewLock(nssILockSSL); + if (!ss->recvLock) + goto loser; + ss->sendLock = PZ_NewLock(nssILockSSL); + if (!ss->sendLock) + goto loser; + } + return SECSuccess; +loser: + ssl_DestroyLocks(ss); + return SECFailure; +} + +#if defined(XP_UNIX) || defined(XP_WIN32) || defined(XP_BEOS) +#define NSS_HAVE_GETENV 1 +#endif + +#define LOWER(x) (x | 0x20) /* cheap ToLower function ignores LOCALE */ + +static void +ssl_SetDefaultsFromEnvironment(void) +{ +#if defined( NSS_HAVE_GETENV ) + static int firsttime = 1; + + if (firsttime) { + char * ev; + firsttime = 0; +#ifdef DEBUG + ev = getenv("SSLDEBUGFILE"); + if (ev && ev[0]) { + ssl_trace_iob = fopen(ev, "w"); + } + if (!ssl_trace_iob) { + ssl_trace_iob = stderr; + } +#ifdef TRACE + ev = getenv("SSLTRACE"); + if (ev && ev[0]) { + ssl_trace = atoi(ev); + SSL_TRACE(("SSL: tracing set to %d", ssl_trace)); + } +#endif /* TRACE */ + ev = getenv("SSLDEBUG"); + if (ev && ev[0]) { + ssl_debug = atoi(ev); + SSL_TRACE(("SSL: debugging set to %d", ssl_debug)); + } +#endif /* DEBUG */ + ev = getenv("SSLKEYLOGFILE"); + if (ev && ev[0]) { + ssl_keylog_iob = fopen(ev, "a"); + if (!ssl_keylog_iob) { + SSL_TRACE(("SSL: failed to open key log file")); + } else { + if (ftell(ssl_keylog_iob) == 0) { + fputs("# SSL/TLS secrets log file, generated by NSS\n", + ssl_keylog_iob); + } + SSL_TRACE(("SSL: logging SSL/TLS secrets to %s", ev)); + } + } +#ifndef NO_PKCS11_BYPASS + ev = getenv("SSLBYPASS"); + if (ev && ev[0]) { + ssl_defaults.bypassPKCS11 = (ev[0] == '1'); + SSL_TRACE(("SSL: bypass default set to %d", \ + ssl_defaults.bypassPKCS11)); + } +#endif /* NO_PKCS11_BYPASS */ + ev = getenv("SSLFORCELOCKS"); + if (ev && ev[0] == '1') { + ssl_force_locks = PR_TRUE; + ssl_defaults.noLocks = 0; + strcpy(lockStatus + LOCKSTATUS_OFFSET, "FORCED. "); + SSL_TRACE(("SSL: force_locks set to %d", ssl_force_locks)); + } + ev = getenv("NSS_SSL_ENABLE_RENEGOTIATION"); + if (ev) { + if (ev[0] == '1' || LOWER(ev[0]) == 'u') + ssl_defaults.enableRenegotiation = SSL_RENEGOTIATE_UNRESTRICTED; + else if (ev[0] == '0' || LOWER(ev[0]) == 'n') + ssl_defaults.enableRenegotiation = SSL_RENEGOTIATE_NEVER; + else if (ev[0] == '2' || LOWER(ev[0]) == 'r') + ssl_defaults.enableRenegotiation = SSL_RENEGOTIATE_REQUIRES_XTN; + else if (ev[0] == '3' || LOWER(ev[0]) == 't') + ssl_defaults.enableRenegotiation = SSL_RENEGOTIATE_TRANSITIONAL; + SSL_TRACE(("SSL: enableRenegotiation set to %d", + ssl_defaults.enableRenegotiation)); + } + ev = getenv("NSS_SSL_REQUIRE_SAFE_NEGOTIATION"); + if (ev && ev[0] == '1') { + ssl_defaults.requireSafeNegotiation = PR_TRUE; + SSL_TRACE(("SSL: requireSafeNegotiation set to %d", + PR_TRUE)); + } + ev = getenv("NSS_SSL_CBC_RANDOM_IV"); + if (ev && ev[0] == '0') { + ssl_defaults.cbcRandomIV = PR_FALSE; + SSL_TRACE(("SSL: cbcRandomIV set to 0")); + } + } +#endif /* NSS_HAVE_GETENV */ +} + +/* +** Create a newsocket structure for a file descriptor. +*/ +static sslSocket * +ssl_NewSocket(PRBool makeLocks, SSLProtocolVariant protocolVariant) +{ + sslSocket *ss; + + ssl_SetDefaultsFromEnvironment(); + + if (ssl_force_locks) + makeLocks = PR_TRUE; + + /* Make a new socket and get it ready */ + ss = (sslSocket*) PORT_ZAlloc(sizeof(sslSocket)); + if (ss) { + /* This should be of type SSLKEAType, but CC on IRIX + * complains during the for loop. + */ + int i; + SECStatus status; + + ss->opt = ssl_defaults; + ss->opt.useSocks = PR_FALSE; + ss->opt.noLocks = !makeLocks; + ss->vrange = *VERSIONS_DEFAULTS(protocolVariant); + ss->protocolVariant = protocolVariant; + + ss->peerID = NULL; + ss->rTimeout = PR_INTERVAL_NO_TIMEOUT; + ss->wTimeout = PR_INTERVAL_NO_TIMEOUT; + ss->cTimeout = PR_INTERVAL_NO_TIMEOUT; + ss->cipherSpecs = NULL; + ss->sizeCipherSpecs = 0; /* produced lazily */ + ss->preferredCipher = NULL; + ss->url = NULL; + + for (i=kt_null; i < kt_kea_size; i++) { + sslServerCerts * sc = ss->serverCerts + i; + sc->serverCert = NULL; + sc->serverCertChain = NULL; + sc->serverKeyPair = NULL; + sc->serverKeyBits = 0; + ss->certStatusArray[i] = NULL; + } + ss->requestedCertTypes = NULL; + ss->stepDownKeyPair = NULL; + ss->dbHandle = CERT_GetDefaultCertDB(); + + /* Provide default implementation of hooks */ + ss->authCertificate = SSL_AuthCertificate; + ss->authCertificateArg = (void *)ss->dbHandle; + ss->sniSocketConfig = NULL; + ss->sniSocketConfigArg = NULL; + ss->getClientAuthData = NULL; +#ifdef NSS_PLATFORM_CLIENT_AUTH + ss->getPlatformClientAuthData = NULL; + ss->getPlatformClientAuthDataArg = NULL; +#endif /* NSS_PLATFORM_CLIENT_AUTH */ + ss->handleBadCert = NULL; + ss->badCertArg = NULL; + ss->pkcs11PinArg = NULL; + ss->ephemeralECDHKeyPair = NULL; + ss->getChannelID = NULL; + ss->getChannelIDArg = NULL; + + ssl_ChooseOps(ss); + ssl2_InitSocketPolicy(ss); + ssl3_InitSocketPolicy(ss); + PR_INIT_CLIST(&ss->ssl3.hs.lastMessageFlight); + + if (makeLocks) { + status = ssl_MakeLocks(ss); + if (status != SECSuccess) + goto loser; + } + status = ssl_CreateSecurityInfo(ss); + if (status != SECSuccess) + goto loser; + status = ssl_InitGather(&ss->gs); + if (status != SECSuccess) { +loser: + ssl_DestroySocketContents(ss); + ssl_DestroyLocks(ss); + PORT_Free(ss); + ss = NULL; + } + } + return ss; +} + |