Remove hard coded ecdsaWithSHA1 hack in ssl routines and check for RSA
[openssl.git] / ssl / ssl_lib.c
index f59a45411e496106a5f8d10ebb4afe9f5caab69a..22039fb1680bc418a6ddcb87696790551cdac1f0 100644 (file)
 #  include <assert.h>
 #endif
 #include <stdio.h>
+#include <openssl/crypto.h>
 #include "ssl_locl.h"
 #include "kssl_lcl.h"
 #include <openssl/objects.h>
@@ -202,9 +203,9 @@ int SSL_clear(SSL *s)
        * needed because SSL_clear is not called when doing renegotiation) */
        /* This is set if we are doing dynamic renegotiation so keep
         * the old cipher.  It is sort of a SSL_clear_lite :-) */
-       if (s->new_session) return(1);
+       if (s->renegotiate) return(1);
 #else
-       if (s->new_session)
+       if (s->renegotiate)
                {
                SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
                return 0;
@@ -319,6 +320,7 @@ SSL *SSL_new(SSL_CTX *ctx)
        s->msg_callback=ctx->msg_callback;
        s->msg_callback_arg=ctx->msg_callback_arg;
        s->verify_mode=ctx->verify_mode;
+       s->not_resumable_session_cb=ctx->not_resumable_session_cb;
 #if 0
        s->verify_depth=ctx->verify_depth;
 #endif
@@ -353,7 +355,7 @@ SSL *SSL_new(SSL_CTX *ctx)
        s->tlsext_ocsp_resplen = -1;
        CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
        s->initial_ctx=ctx;
-# ifndef OPENSSL_NO_NPN
+# ifndef OPENSSL_NO_NEXTPROTONEG
        s->next_proto_negotiated = NULL;
 # endif
 #endif
@@ -589,7 +591,7 @@ void SSL_free(SSL *s)
                kssl_ctx_free(s->kssl_ctx);
 #endif /* OPENSSL_NO_KRB5 */
 
-#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NPN)
+#if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
        if (s->next_proto_negotiated)
                OPENSSL_free(s->next_proto_negotiated);
 #endif
@@ -1016,18 +1018,29 @@ int SSL_shutdown(SSL *s)
 
 int SSL_renegotiate(SSL *s)
        {
-       if (s->new_session == 0)
-               {
-               s->new_session=1;
-               }
+       if (s->renegotiate == 0)
+               s->renegotiate=1;
+
+       s->new_session=1;
+
        return(s->method->ssl_renegotiate(s));
        }
 
+int SSL_renegotiate_abbreviated(SSL *s)
+{
+       if (s->renegotiate == 0)
+               s->renegotiate=1;
+       
+       s->new_session=0;
+       
+       return(s->method->ssl_renegotiate(s));
+}
+
 int SSL_renegotiate_pending(SSL *s)
        {
        /* becomes true when negotiation is requested;
         * false again once a handshake has finished */
-       return (s->new_session != 0);
+       return (s->renegotiate != 0);
        }
 
 long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
@@ -1363,6 +1376,10 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
        for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
                {
                c=sk_SSL_CIPHER_value(sk,i);
+               /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
+               if ((c->algorithm_ssl & SSL_TLSV1_2) && 
+                       (TLS1_get_version(s) < TLS1_2_VERSION))
+                       continue;
 #ifndef OPENSSL_NO_KRB5
                if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
                    nokrb5)
@@ -1380,7 +1397,7 @@ int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
        /* If p == q, no ciphers and caller indicates an error. Otherwise
         * add SCSV if not renegotiating.
         */
-       if (p != q && !s->new_session)
+       if (p != q && !s->renegotiate)
                {
                static SSL_CIPHER scsv =
                        {
@@ -1427,7 +1444,7 @@ STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
                        (p[n-1] == (SSL3_CK_SCSV & 0xff)))
                        {
                        /* SCSV fatal if renegotiating */
-                       if (s->new_session)
+                       if (s->renegotiate)
                                {
                                SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
                                ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE); 
@@ -1485,7 +1502,7 @@ int SSL_get_servername_type(const SSL *s)
        return -1;
        }
 
-# ifndef OPENSSL_NO_NPN
+# ifndef OPENSSL_NO_NEXTPROTONEG
 /* SSL_select_next_proto implements the standard protocol selection. It is
  * expected that this function is called from the callback set by
  * SSL_CTX_set_next_proto_select_cb.
@@ -1647,6 +1664,14 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
                return(NULL);
                }
 
+#ifdef OPENSSL_FIPS
+       if (FIPS_mode() && (meth->version < TLS1_VERSION))      
+               {
+               SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
+               return NULL;
+               }
+#endif
+
        if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
                {
                SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
@@ -1766,7 +1791,7 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
        ret->tlsext_status_cb = 0;
        ret->tlsext_status_arg = NULL;
 
-# ifndef OPENSSL_NO_NPN
+# ifndef OPENSSL_NO_NEXTPROTONEG
        ret->next_protos_advertised_cb = 0;
        ret->next_proto_select_cb = 0;
 # endif
@@ -1776,6 +1801,9 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
        ret->psk_client_callback=NULL;
        ret->psk_server_callback=NULL;
 #endif
+#ifndef OPENSSL_NO_SRP
+       SSL_CTX_SRP_CTX_init(ret);
+#endif
 #ifndef OPENSSL_NO_BUF_FREELISTS
        ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
        ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
@@ -1818,6 +1846,8 @@ SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
         * deployed might change this.
         */
        ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
+       /* Disable TLS v1.2 by default for now */
+       ret->options |= SSL_OP_NO_TLSv1_2;
 
        return(ret);
 err:
@@ -1908,6 +1938,9 @@ void SSL_CTX_free(SSL_CTX *a)
        if (a->psk_identity_hint)
                OPENSSL_free(a->psk_identity_hint);
 #endif
+#ifndef OPENSSL_NO_SRP
+       SSL_CTX_SRP_CTX_free(a);
+#endif
 #ifndef OPENSSL_NO_ENGINE
        if (a->client_cert_engine)
                ENGINE_finish(a->client_cert_engine);
@@ -1963,7 +1996,7 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
 #endif
        X509 *x = NULL;
        EVP_PKEY *ecc_pkey = NULL;
-       int signature_nid = 0;
+       int signature_nid = 0, pk_nid = 0, md_nid = 0;
 
        if (c == NULL) return;
 
@@ -2093,18 +2126,15 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
                    EVP_PKEY_bits(ecc_pkey) : 0;
                EVP_PKEY_free(ecc_pkey);
                if ((x->sig_alg) && (x->sig_alg->algorithm))
+                       {
                        signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
+                       OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
+                       }
 #ifndef OPENSSL_NO_ECDH
                if (ecdh_ok)
                        {
-                       const char *sig = OBJ_nid2ln(signature_nid);
-                       if (sig == NULL)
-                               {
-                               ERR_clear_error();
-                               sig = "unknown";
-                               }
-                               
-                       if (strstr(sig, "WithRSA"))
+
+                       if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
                                {
                                mask_k|=SSL_kECDHr;
                                mask_a|=SSL_aECDH;
@@ -2115,7 +2145,7 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
                                        }
                                }
 
-                       if (signature_nid == NID_ecdsa_with_SHA1)
+                       if (pk_nid == NID_X9_62_id_ecPublicKey)
                                {
                                mask_k|=SSL_kECDHe;
                                mask_a|=SSL_aECDH;
@@ -2164,12 +2194,13 @@ void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
 
 #ifndef OPENSSL_NO_EC
 
-int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
+int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
        {
        unsigned long alg_k, alg_a;
        EVP_PKEY *pkey = NULL;
        int keysize = 0;
-       int signature_nid = 0;
+       int signature_nid = 0, md_nid = 0, pk_nid = 0;
+       const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
 
        alg_k = cs->algorithm_mkey;
        alg_a = cs->algorithm_auth;
@@ -2187,7 +2218,10 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
        /* This call populates the ex_flags field correctly */
        X509_check_purpose(x, -1, 0);
        if ((x->sig_alg) && (x->sig_alg->algorithm))
+               {
                signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
+               OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
+               }
        if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
                {
                /* key usage, if present, must allow key agreement */
@@ -2196,26 +2230,20 @@ int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
                        SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
                        return 0;
                        }
-               if (alg_k & SSL_kECDHe)
+               if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION)
                        {
                        /* signature alg must be ECDSA */
-                       if (signature_nid != NID_ecdsa_with_SHA1)
+                       if (pk_nid != NID_X9_62_id_ecPublicKey)
                                {
                                SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
                                return 0;
                                }
                        }
-               if (alg_k & SSL_kECDHr)
+               if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION)
                        {
                        /* signature alg must be RSA */
 
-                       const char *sig = OBJ_nid2ln(signature_nid);
-                       if (sig == NULL)
-                               {
-                               ERR_clear_error();
-                               sig = "unknown";
-                               }
-                       if (strstr(sig, "WithRSA") == NULL)
+                       if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
                                {
                                SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
                                return 0;
@@ -2301,34 +2329,36 @@ X509 *ssl_get_server_send_cert(SSL *s)
        return(c->pkeys[i].x509);
        }
 
-EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher)
+EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher, const EVP_MD **pmd)
        {
        unsigned long alg_a;
        CERT *c;
+       int idx = -1;
 
        alg_a = cipher->algorithm_auth;
        c=s->cert;
 
        if ((alg_a & SSL_aDSS) &&
                (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
-               return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
+               idx = SSL_PKEY_DSA_SIGN;
        else if (alg_a & SSL_aRSA)
                {
                if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
-                       return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
+                       idx = SSL_PKEY_RSA_SIGN;
                else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
-                       return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
-               else
-                       return(NULL);
+                       idx = SSL_PKEY_RSA_ENC;
                }
        else if ((alg_a & SSL_aECDSA) &&
                 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
-               return(c->pkeys[SSL_PKEY_ECC].privatekey);
-       else /* if (alg_a & SSL_aNULL) */
+               idx = SSL_PKEY_ECC;
+       if (idx == -1)
                {
                SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
                return(NULL);
                }
+       if (pmd)
+               *pmd = c->pkeys[idx].digest;
+       return c->pkeys[idx].privatekey;
        }
 
 void ssl_update_cache(SSL *s,int mode)
@@ -2553,10 +2583,12 @@ SSL_METHOD *ssl_bad_method(int ver)
 
 const char *SSL_get_version(const SSL *s)
        {
-       if (s->version == TLS1_1_VERSION)
+       if (s->version == TLS1_2_VERSION)
+               return("TLSv1.2");
+       else if (s->version == TLS1_1_VERSION)
                return("TLSv1.1");
-       else if (s->version == SSL3_VERSION)
-               return("SSLv3");
+       else if (s->version == TLS1_VERSION)
+               return("TLSv1");
        else if (s->version == SSL3_VERSION)
                return("SSLv3");
        else if (s->version == SSL2_VERSION)
@@ -2649,6 +2681,7 @@ SSL *SSL_dup(SSL *s)
        ret->in_handshake = s->in_handshake;
        ret->handshake_func = s->handshake_func;
        ret->server = s->server;
+       ret->renegotiate = s->renegotiate;
        ret->new_session = s->new_session;
        ret->quiet_shutdown = s->quiet_shutdown;
        ret->shutdown=s->shutdown;
@@ -2914,6 +2947,11 @@ int SSL_state(const SSL *ssl)
        return(ssl->state);
        }
 
+void SSL_set_state(SSL *ssl, int state)
+       {
+       ssl->state = state;
+       }
+
 void SSL_set_verify_result(SSL *ssl,long arg)
        {
        ssl->verify_result=arg;
@@ -3152,6 +3190,19 @@ void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int con
        SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
        }
 
+void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
+       int (*cb)(SSL *ssl, int is_forward_secure))
+       {
+       SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
+               (void (*)(void))cb);
+       }
+void SSL_set_not_resumable_session_callback(SSL *ssl,
+       int (*cb)(SSL *ssl, int is_forward_secure))
+       {
+       SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
+               (void (*)(void))cb);
+       }
+
 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
  * vairable, freeing  EVP_MD_CTX previously stored in that variable, if
  * any. If EVP_MD pointer is passed, initializes ctx with this md
@@ -3172,6 +3223,16 @@ void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
        *hash=NULL;
 }
 
+void SSL_set_debug(SSL *s, int debug)
+       {
+       s->debug = debug;
+       }
+
+int SSL_cache_hit(SSL *s)
+       {
+       return s->hit;
+       }
+
 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
 #include "../crypto/bio/bss_file.c"
 #endif