From 6cf8243a70e26843c7770f7b29b1a33b822d1c26 Mon Sep 17 00:00:00 2001
From: Haikel Guemar <hguemar@fedoraproject.org>
Date: Tue, 26 Jul 2016 22:50:22 +0200
Subject: [PATCH 2/3] Use openssl 1.0.1
Based on Solaris patches from upstream #2783
https://github.com/nodejs/node/issues/2783
---
doc/api/tls.md | 6 ++
src/node_constants.cc | 5 ++
src/node_crypto.cc | 201 ++++++++++++++++++++++++++++++++++++++++++++++----
src/node_crypto.h | 16 ++++
src/tls_wrap.cc | 8 ++
5 files changed, 223 insertions(+), 13 deletions(-)
diff --git a/doc/api/tls.md b/doc/api/tls.md
index 7feaff2..97ad7a5 100644
--- a/doc/api/tls.md
+++ b/doc/api/tls.md
@@ -114,6 +114,12 @@ handshake extensions:
* SNI - Allows the use of one TLS server for multiple hostnames with different
SSL certificates.
+ **NOTE**: dueto a design flaw in node **SNI cannot be
+ used on the server side**, even so all parameters in related functions are
+ accepted for compatibility reasons. And thus the related events will not
+ fire unless one aranges this explicitly. This may change, when the OS
+ provides OpenSSL v1.0.2 or better and node gets linked to this version.
+
*Note*: Use of ALPN is recommended over NPN. The NPN extension has never been
formally defined or documented and generally not recommended for use.
diff --git a/src/node_constants.cc b/src/node_constants.cc
index 2e6be8d..239eadb 100644
--- a/src/node_constants.cc
+++ b/src/node_constants.cc
@@ -14,7 +14,10 @@
#include <sys/stat.h>
#if HAVE_OPENSSL
+# include <openssl/opensslconf.h>
+# ifndef OPENSSL_NO_EC
# include <openssl/ec.h>
+# endif
# include <openssl/ssl.h>
# ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
@@ -976,12 +979,14 @@ void DefineOpenSSLConstants(Local<Object> target) {
#if HAVE_OPENSSL
// NOTE: These are not defines
+# ifndef OPENSSL_NO_EC
NODE_DEFINE_CONSTANT(target, POINT_CONVERSION_COMPRESSED);
NODE_DEFINE_CONSTANT(target, POINT_CONVERSION_UNCOMPRESSED);
NODE_DEFINE_CONSTANT(target, POINT_CONVERSION_HYBRID);
#endif
+#endif
}
void DefineSystemConstants(Local<Object> target) {
diff --git a/src/node_crypto.cc b/src/node_crypto.cc
index 9cf216f..888a0f8 100644
--- a/src/node_crypto.cc
+++ b/src/node_crypto.cc
@@ -24,6 +24,82 @@
#include <stdlib.h>
#include <string.h>
+#ifndef SSL_get_server_tmp_key
+/*
+ 1.0.2 SSL_get_server_tmp_key(s, pk) "backport". BAD HACK!!!
+ NOTE: This imports "foreign" knowledge and thus will break, when SESS_CERT
+ or CERT_PKEY change, which is definitely the case for the later for
+ all OpenSSL lib vers != 1.0.1. So don't try to bind to something else!
+ */
+# define SSL_PKEY_NUM 8
+typedef struct cert_pkey_st {
+ X509 *x509;
+ EVP_PKEY *privatekey;
+ /* Digest to use when signing */
+ const EVP_MD *digest;
+} CERT_PKEY;
+
+typedef struct sess_cert_st {
+ STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
+ /* The 'peer_...' members are used only by clients. */
+ int peer_cert_type;
+ CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never
+ * NULL!) */
+ CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
+ /*
+ * Obviously we don't have the private keys of these, so maybe we
+ * shouldn't even use the CERT_PKEY type here.
+ */
+# ifndef OPENSSL_NO_RSA
+ RSA *peer_rsa_tmp; /* not used for SSL 2 */
+# endif
+# ifndef OPENSSL_NO_DH
+ DH *peer_dh_tmp; /* not used for SSL 2 */
+# endif
+# ifndef OPENSSL_NO_ECDH
+ EC_KEY *peer_ecdh_tmp;
+# endif
+ int references; /* actually always 1 at the moment */
+} SESS_CERT;
+
+static long SSL_get_server_tmp_key(SSL *s, void *parg) {
+ if (s->server || !s->session || !s->session->sess_cert)
+ return 0;
+ else {
+ SESS_CERT *sc;
+ EVP_PKEY *ptmp;
+ int rv = 0;
+ sc = s->session->sess_cert;
+#if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_DH) && !defined(OPENSSL_NO_EC) && !defined(OPENSSL_NO_ECDH)
+ if (!sc->peer_rsa_tmp && !sc->peer_dh_tmp && !sc->peer_ecdh_tmp)
+ return 0;
+#endif
+ ptmp = EVP_PKEY_new();
+ if (!ptmp)
+ return 0;
+ if (0) ;
+#ifndef OPENSSL_NO_RSA
+ else if (sc->peer_rsa_tmp)
+ rv = EVP_PKEY_set1_RSA(ptmp, sc->peer_rsa_tmp);
+#endif
+#ifndef OPENSSL_NO_DH
+ else if (sc->peer_dh_tmp)
+ rv = EVP_PKEY_set1_DH(ptmp, sc->peer_dh_tmp);
+#endif
+#ifndef OPENSSL_NO_ECDH
+ else if (sc->peer_ecdh_tmp)
+ rv = EVP_PKEY_set1_EC_KEY(ptmp, sc->peer_ecdh_tmp);
+#endif
+ if (rv) {
+ *(EVP_PKEY **)parg = ptmp;
+ return 1;
+ }
+ EVP_PKEY_free(ptmp);
+ return 0;
+ }
+}
+#endif /* SSL_get_server_tmp_key */
+
#define THROW_AND_RETURN_IF_NOT_STRING_OR_BUFFER(val, prefix) \
do { \
if (!Buffer::HasInstance(val) && !val->IsString()) { \
@@ -160,7 +236,11 @@ template int SSLWrap<TLSWrap>::TLSExtStatusCallback(SSL* s, void* arg);
#endif
template void SSLWrap<TLSWrap>::DestroySSL();
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
template int SSLWrap<TLSWrap>::SSLCertCallback(SSL* s, void* arg);
+#else
+template int SSLWrap<TLSWrap>::SSLCertCallback(SSL* s, X509 **x509, EVP_PKEY **pkey);
+#endif
template void SSLWrap<TLSWrap>::WaitForCertCb(CertCb cb, void* arg);
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
@@ -280,8 +360,12 @@ void SecureContext::Initialize(Environment* env, Local<Object> target) {
env->SetProtoMethod(t, "addCRL", SecureContext::AddCRL);
env->SetProtoMethod(t, "addRootCerts", SecureContext::AddRootCerts);
env->SetProtoMethod(t, "setCiphers", SecureContext::SetCiphers);
+#ifndef OPENSSL_NO_ECDH
env->SetProtoMethod(t, "setECDHCurve", SecureContext::SetECDHCurve);
+#endif
+#ifndef OPENSSL_NO_DH
env->SetProtoMethod(t, "setDHParam", SecureContext::SetDHParam);
+#endif
env->SetProtoMethod(t, "setOptions", SecureContext::SetOptions);
env->SetProtoMethod(t, "setSessionIdContext",
SecureContext::SetSessionIdContext);
@@ -515,8 +599,20 @@ int SSL_CTX_use_certificate_chain(SSL_CTX* ctx,
for (int i = 0; i < sk_X509_num(extra_certs); i++) {
X509* ca = sk_X509_value(extra_certs, i);
- // NOTE: Increments reference count on `ca`
- r = SSL_CTX_add1_chain_cert(ctx, ca);
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+ // If ctx->cert->key != NULL create ctx->cert->key->chain if not
+ // already there, push 'ca' to this chain and finally increment the ca
+ // reference count by 1 (this is the diff between *_add1_* and *_add0_*
+ // - the later increments by 0 ;-)) and return 1. Otherwise or if
+ // something fails in between, return 0.
+ r = SSL_CTX_add1_chain_cert(ctx, ca);
+#else
+ // Create ctx->extra_certs if not already there, just push 'ca' to this
+ // chain and return 1. If something fails, return 0.
+ // NOTE: 1.0.1- does not support multiple certs having its own chain in
+ // a single context. There is just one: extra_chain!
+ r = SSL_CTX_add_extra_chain_cert(ctx, ca);
+#endif
if (!r) {
ret = 0;
@@ -795,6 +891,7 @@ void SecureContext::SetCiphers(const FunctionCallbackInfo<Value>& args) {
}
+#ifndef OPENSSL_NO_ECDH
void SecureContext::SetECDHCurve(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc;
ASSIGN_OR_RETURN_UNWRAP(&sc, args.Holder());
@@ -822,8 +919,10 @@ void SecureContext::SetECDHCurve(const FunctionCallbackInfo<Value>& args) {
EC_KEY_free(ecdh);
}
+#endif
+#ifndef OPENSSL_NO_DH
void SecureContext::SetDHParam(const FunctionCallbackInfo<Value>& args) {
SecureContext* sc;
ASSIGN_OR_RETURN_UNWRAP(&sc, args.This());
@@ -862,6 +961,7 @@ void SecureContext::SetDHParam(const FunctionCallbackInfo<Value>& args) {
if (!r)
return env->ThrowTypeError("Error setting temp DH parameter");
}
+#endif
void SecureContext::SetOptions(const FunctionCallbackInfo<Value>& args) {
@@ -1872,6 +1972,7 @@ void SSLWrap<Base>::GetEphemeralKeyInfo(
info->Set(env->size_string(),
Integer::New(env->isolate(), EVP_PKEY_bits(key)));
break;
+#ifndef OPENSSL_NO_ECDH
case EVP_PKEY_EC:
{
EC_KEY* ec = EVP_PKEY_get1_EC_KEY(key);
@@ -1884,6 +1985,7 @@ void SSLWrap<Base>::GetEphemeralKeyInfo(
info->Set(env->size_string(),
Integer::New(env->isolate(), EVP_PKEY_bits(key)));
}
+#endif
}
EVP_PKEY_free(key);
}
@@ -2301,7 +2403,12 @@ void SSLWrap<Base>::WaitForCertCb(CertCb cb, void* arg) {
template <class Base>
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
int SSLWrap<Base>::SSLCertCallback(SSL* s, void* arg) {
+#else
+/* NOTE: For now this callback gets usually never called dueto design flaws */
+int SSLWrap<Base>::SSLCertCallback(SSL* s, X509 **x509, EVP_PKEY **pkey) {
+#endif
Base* w = static_cast<Base*>(SSL_get_app_data(s));
if (!w->is_server())
@@ -2375,19 +2482,53 @@ void SSLWrap<Base>::CertCbDone(const FunctionCallbackInfo<Value>& args) {
w->sni_context_.Reset(env->isolate(), ctx);
int rv;
+ X509* x509;
+ EVP_PKEY* pkey;
+ STACK_OF(X509)* chain;
// NOTE: reference count is not increased by this API methods
- X509* x509 = SSL_CTX_get0_certificate(sc->ctx_);
- EVP_PKEY* pkey = SSL_CTX_get0_privatekey(sc->ctx_);
- STACK_OF(X509)* chain;
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+ x509 = SSL_CTX_get0_certificate(sc->ctx_);
+ pkey = SSL_CTX_get0_privatekey(sc->ctx_);
+ rv = SSL_CTX_get0_chain_certs(sc->ctx_, &chain);
+#else
+ SSL *ssl = SSL_new(sc->ctx_);
+ rv = SSL_CTX_get_extra_chain_certs(sc->ctx_, &chain);
+ if (ssl) {
+ SSL_set_connect_state(ssl); /* just cleanup/reset state - cheap */
+ x509 = SSL_get_certificate(ssl);
+ SSL_free(ssl);
+ } else {
+ x509 = NULL;
+ pkey = NULL;
+ }
+#endif
- rv = SSL_CTX_get0_chain_certs(sc->ctx_, &chain);
- if (rv)
- rv = SSL_use_certificate(w->ssl_, x509);
- if (rv)
- rv = SSL_use_PrivateKey(w->ssl_, pkey);
- if (rv && chain != nullptr)
- rv = SSL_set1_chain(w->ssl_, chain);
+ if (rv)
+ rv = SSL_use_certificate(w->ssl_, x509);
+ if (rv)
+ rv = SSL_use_PrivateKey(w->ssl_, pkey);
+ if (rv && chain != nullptr) {
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
+ // replaces w->ssl_->cert->key->chain with a copy of the given chain,
+ // which is allowed to be NULL
+ rv = SSL_set1_chain(w->ssl_, chain);
+#else
+ // just replace the extra chain with the given chain - 1.0.1- does not
+ // support chain per cert
+ SSL_CTX_clear_extra_chain_certs(w->ssl_->ctx);
+ if (chain != NULL) {
+ int i;
+ SSL_CTX* ctx = w->ssl_->ctx;
+ for (i = 0; i < sk_X509_num(chain); i++) {
+ // can't do anything: however others might be ok and still
+ // satisfy requirements
+ SSL_CTX_add_extra_chain_cert(ctx, sk_X509_value(chain,i));
+ }
+ }
+ rv = 1;
+#endif
+ }
if (rv)
rv = w->SetCACerts(sc);
if (!rv) {
@@ -2451,10 +2592,14 @@ void SSLWrap<Base>::SetSNIContext(SecureContext* sc) {
template <class Base>
int SSLWrap<Base>::SetCACerts(SecureContext* sc) {
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
int err = SSL_set1_verify_cert_store(ssl_, SSL_CTX_get_cert_store(sc->ctx_));
if (err != 1)
return err;
-
+#else
+ // there is no ssl_->cert->verify_store in <= 1.0.1. So no need to: free the
+ // old store, set the new one to it and increment its ref count.
+#endif
STACK_OF(X509_NAME)* list = SSL_dup_CA_list(
SSL_CTX_get_client_CA_list(sc->ctx_));
@@ -2732,7 +2877,11 @@ inline int VerifyCallback(int preverify_ok, X509_STORE_CTX* ctx) {
SSL* ssl = static_cast<SSL*>(
X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx()));
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
if (SSL_is_server(ssl))
+#else
+ if (ssl->server)
+#endif
return 1;
// Client needs to check if the server cert is listed in the
@@ -2815,7 +2964,21 @@ void Connection::New(const FunctionCallbackInfo<Value>& args) {
InitNPN(sc);
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
SSL_set_cert_cb(conn->ssl_, SSLWrap<Connection>::SSLCertCallback, conn);
+#else
+ /* 1.0.1 and less have no general cert callback. The closest for a client is
+ SSL_CTX_set_client_cert_cb(conn->ssl_->ctx, SSLWrap<Connection>::SSLCertCallback);
+ but on the client it is not needed/used by this implementation. Since this
+ the SSLCertCallback actually calls lib/_tls_wrap.js:oncertcb(), which in
+ turn loadSNI() and this the actual SNICallback of the JSON object, sets
+ the context and finally requestOCSP() and certCbDone(). Not sure, why
+ the SNICallback of the JSON object, doesn't get invoked via
+ SelectSNIContextCallback_() - design flaw because lets do 2 things at once
+ (i.e. do SNICallback and attach the certs ca chain), however, this means
+ no server side support for the SNI TLS/OCSP_state extension anymore.
+ */
+#endif
#ifdef SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
if (is_server) {
@@ -4404,6 +4567,7 @@ void PublicKeyCipher::Cipher(const FunctionCallbackInfo<Value>& args) {
}
+#ifndef OPENSSL_NO_DH
void DiffieHellman::Initialize(Environment* env, Local<Object> target) {
Local<FunctionTemplate> t = env->NewFunctionTemplate(New);
@@ -4805,8 +4969,10 @@ bool DiffieHellman::VerifyContext() {
verifyError_ = codes;
return true;
}
+#endif
+#ifndef OPENSSL_NO_ECDH
void ECDH::Initialize(Environment* env, Local<Object> target) {
HandleScope scope(env->isolate());
@@ -5034,6 +5200,7 @@ void ECDH::SetPrivateKey(const FunctionCallbackInfo<Value>& args) {
EC_POINT_free(pub);
}
+#endif
void ECDH::SetPublicKey(const FunctionCallbackInfo<Value>& args) {
@@ -5587,6 +5754,7 @@ void GetHashes(const FunctionCallbackInfo<Value>& args) {
}
+# ifndef OPENSSL_NO_EC
void GetCurves(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
const size_t num_curves = EC_get_builtin_curves(nullptr, 0);
@@ -5611,6 +5779,7 @@ void GetCurves(const FunctionCallbackInfo<Value>& args) {
args.GetReturnValue().Set(arr);
}
+#endif
bool VerifySpkac(const char* data, unsigned int len) {
@@ -5886,8 +6055,12 @@ void InitCrypto(Local<Object> target,
SecureContext::Initialize(env, target);
Connection::Initialize(env, target);
CipherBase::Initialize(env, target);
+# ifndef OPENSSL_NO_EC
DiffieHellman::Initialize(env, target);
+#endif
+#ifndef OPENSSL_NO_ECDH
ECDH::Initialize(env, target);
+#endif
Hmac::Initialize(env, target);
Hash::Initialize(env, target);
Sign::Initialize(env, target);
@@ -5906,7 +6079,9 @@ void InitCrypto(Local<Object> target,
env->SetMethod(target, "getSSLCiphers", GetSSLCiphers);
env->SetMethod(target, "getCiphers", GetCiphers);
env->SetMethod(target, "getHashes", GetHashes);
+# ifndef OPENSSL_NO_EC
env->SetMethod(target, "getCurves", GetCurves);
+#endif
env->SetMethod(target, "publicEncrypt",
PublicKeyCipher::Cipher<PublicKeyCipher::kPublic,
EVP_PKEY_encrypt_init,
diff --git a/src/node_crypto.h b/src/node_crypto.h
index 24ac773..2b1b6ae 100644
--- a/src/node_crypto.h
+++ b/src/node_crypto.h
@@ -18,8 +18,12 @@
#include "v8.h"
#include <openssl/ssl.h>
+# ifndef OPENSSL_NO_EC
#include <openssl/ec.h>
+# endif
+# ifndef OPENSSL_NO_ECDH
#include <openssl/ecdh.h>
+# endif
#ifndef OPENSSL_NO_ENGINE
# include <openssl/engine.h>
#endif // !OPENSSL_NO_ENGINE
@@ -101,8 +105,12 @@ class SecureContext : public BaseObject {
static void AddCRL(const v8::FunctionCallbackInfo<v8::Value>& args);
static void AddRootCerts(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetCiphers(const v8::FunctionCallbackInfo<v8::Value>& args);
+#ifndef OPENSSL_NO_ECDH
static void SetECDHCurve(const v8::FunctionCallbackInfo<v8::Value>& args);
+#endif
+# ifndef OPENSSL_NO_DH
static void SetDHParam(const v8::FunctionCallbackInfo<v8::Value>& args);
+#endif
static void SetOptions(const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetSessionIdContext(
const v8::FunctionCallbackInfo<v8::Value>& args);
@@ -283,7 +291,11 @@ class SSLWrap {
unsigned int inlen,
void* arg);
static int TLSExtStatusCallback(SSL* s, void* arg);
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
static int SSLCertCallback(SSL* s, void* arg);
+#else
+ static int SSLCertCallback(SSL* s, X509 **x509, EVP_PKEY **pkey);
+#endif
static void SSLGetter(v8::Local<v8::String> property,
const v8::PropertyCallbackInfo<v8::Value>& info);
@@ -645,6 +657,7 @@ class PublicKeyCipher {
static void Cipher(const v8::FunctionCallbackInfo<v8::Value>& args);
};
+#ifndef OPENSSL_NO_DH
class DiffieHellman : public BaseObject {
public:
~DiffieHellman() override {
@@ -690,7 +703,9 @@ class DiffieHellman : public BaseObject {
int verifyError_;
DH* dh;
};
+#endif
+# ifndef OPENSSL_NO_ECDH
class ECDH : public BaseObject {
public:
~ECDH() override {
@@ -727,6 +742,7 @@ class ECDH : public BaseObject {
EC_KEY* key_;
const EC_GROUP* group_;
};
+#endif
bool EntropySource(unsigned char* buffer, size_t length);
#ifndef OPENSSL_NO_ENGINE
diff --git a/src/tls_wrap.cc b/src/tls_wrap.cc
index 7c5df11..3e06621 100644
--- a/src/tls_wrap.cc
+++ b/src/tls_wrap.cc
@@ -142,7 +142,15 @@ void TLSWrap::InitSSL() {
InitNPN(sc_);
+#if OPENSSL_VERSION_NUMBER >= 0x10002000L
SSL_set_cert_cb(ssl_, SSLWrap<TLSWrap>::SSLCertCallback, this);
+#else
+ /* 1.0.1 and less have at most for the client side the function
+ SSL_CTX_set_client_cert_cb(ssl_->ctx, SSLWrap<TLSWrap>::SSLCertCallback);
+ but on the client it is not needed/used by this implementation.
+ For more info see comments in src/node_crypto.cc Connection::New().
+ */
+#endif
if (is_server()) {
SSL_set_accept_state(ssl_);
--
2.9.0