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Allow ECDHE and DHE as forward-compatible aliases for EECDH and EDH
[openssl.git] / ssl / ssl_ciph.c
diff --git a/ssl/ssl_ciph.c b/ssl/ssl_ciph.c
index 839b210081bc10ba7c68821ee6f81d21386ae565..d961903d37f496bd42cf76d8ef45fad7f4202d00 100644 (file)
--- a/ssl/ssl_ciph.c
+++ b/ssl/ssl_ciph.c
@@ -242,6 +242,7 @@ static const SSL_CIPHER cipher_aliases[]={
        {0,SSL_TXT_kDHd,0,    SSL_kDHd,  0,0,0,0,0,0,0,0},
        {0,SSL_TXT_kDH,0,     SSL_kDHr|SSL_kDHd,0,0,0,0,0,0,0,0},
        {0,SSL_TXT_kEDH,0,    SSL_kEDH,  0,0,0,0,0,0,0,0},
+       {0,SSL_TXT_kDHE,0,    SSL_kEDH,  0,0,0,0,0,0,0,0},
        {0,SSL_TXT_DH,0,      SSL_kDHr|SSL_kDHd|SSL_kEDH,0,0,0,0,0,0,0,0},
 
        {0,SSL_TXT_kKRB5,0,   SSL_kKRB5, 0,0,0,0,0,0,0,0},
@@ -250,6 +251,7 @@ static const SSL_CIPHER cipher_aliases[]={
        {0,SSL_TXT_kECDHe,0,  SSL_kECDHe,0,0,0,0,0,0,0,0},
        {0,SSL_TXT_kECDH,0,   SSL_kECDHr|SSL_kECDHe,0,0,0,0,0,0,0,0},
        {0,SSL_TXT_kEECDH,0,  SSL_kEECDH,0,0,0,0,0,0,0,0},
+       {0,SSL_TXT_kECDHE,0,  SSL_kEECDH,0,0,0,0,0,0,0,0},
        {0,SSL_TXT_ECDH,0,    SSL_kECDHr|SSL_kECDHe|SSL_kEECDH,0,0,0,0,0,0,0,0},
 
         {0,SSL_TXT_kPSK,0,    SSL_kPSK,  0,0,0,0,0,0,0,0},
@@ -270,10 +272,13 @@ static const SSL_CIPHER cipher_aliases[]={
        {0,SSL_TXT_aGOST94,0,0,SSL_aGOST94,0,0,0,0,0,0,0},
        {0,SSL_TXT_aGOST01,0,0,SSL_aGOST01,0,0,0,0,0,0,0},
        {0,SSL_TXT_aGOST,0,0,SSL_aGOST94|SSL_aGOST01,0,0,0,0,0,0,0},
+       {0,SSL_TXT_aSRP,0,    0,SSL_aSRP,  0,0,0,0,0,0,0},
 
        /* aliases combining key exchange and server authentication */
        {0,SSL_TXT_EDH,0,     SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0},
+       {0,SSL_TXT_DHE,0,     SSL_kEDH,~SSL_aNULL,0,0,0,0,0,0,0},
        {0,SSL_TXT_EECDH,0,   SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0},
+       {0,SSL_TXT_ECDHE,0,   SSL_kEECDH,~SSL_aNULL,0,0,0,0,0,0,0},
        {0,SSL_TXT_NULL,0,    0,0,SSL_eNULL, 0,0,0,0,0,0},
        {0,SSL_TXT_KRB5,0,    SSL_kKRB5,SSL_aKRB5,0,0,0,0,0,0,0},
        {0,SSL_TXT_RSA,0,     SSL_kRSA,SSL_aRSA,0,0,0,0,0,0,0},
@@ -326,6 +331,19 @@ static const SSL_CIPHER cipher_aliases[]={
        {0,SSL_TXT_HIGH,0,    0,0,0,0,0,SSL_HIGH,  0,0,0},
        /* FIPS 140-2 approved ciphersuite */
        {0,SSL_TXT_FIPS,0,    0,0,~SSL_eNULL,0,0,SSL_FIPS,  0,0,0},
+       /* "DHE-" aliases to "EDH-" labels (for forward compatibility) */
+       {0,SSL3_TXT_DHE_DSS_DES_40_CBC_SHA,0,
+         SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
+       {0,SSL3_TXT_DHE_DSS_DES_64_CBC_SHA,0,
+         SSL_kDHE,SSL_aDSS,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
+       {0,SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA,0,
+         SSL_kDHE,SSL_aDSS,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
+       {0,SSL3_TXT_DHE_RSA_DES_40_CBC_SHA,0,
+         SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_EXPORT|SSL_EXP40,0,0,0,},
+       {0,SSL3_TXT_DHE_RSA_DES_64_CBC_SHA,0,
+         SSL_kDHE,SSL_aRSA,SSL_DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_LOW,0,0,0,},
+       {0,SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA,0,
+         SSL_kDHE,SSL_aRSA,SSL_3DES,SSL_SHA1,SSL_SSLV3,SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,0,0,0,},
        };
 /* Search for public key algorithm with given name and 
  * return its pkey_id if it is available. Otherwise return 0
@@ -562,7 +580,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
                break;
                }
 
-       if ((i < 0) || (i > SSL_ENC_NUM_IDX))
+       if ((i < 0) || (i >= SSL_ENC_NUM_IDX))
                *enc=NULL;
        else
                {
@@ -596,7 +614,7 @@ int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
                i= -1;
                break;
                }
-       if ((i < 0) || (i > SSL_MD_NUM_IDX))
+       if ((i < 0) || (i >= SSL_MD_NUM_IDX))
        {
                *md=NULL; 
                if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
@@ -931,7 +949,7 @@ static void ssl_cipher_apply_rule(unsigned long cipher_id,
                int rule, int strength_bits,
                CIPHER_ORDER **head_p, CIPHER_ORDER **tail_p)
        {
-       CIPHER_ORDER *head, *tail, *curr, *curr2, *last;
+       CIPHER_ORDER *head, *tail, *curr, *next, *last;
        const SSL_CIPHER *cp;
        int reverse = 0;
 
@@ -948,21 +966,25 @@ static void ssl_cipher_apply_rule(unsigned long cipher_id,
 
        if (reverse)
                {
-               curr = tail;
+               next = tail;
                last = head;
                }
        else
                {
-               curr = head;
+               next = head;
                last = tail;
                }
 
-       curr2 = curr;
+       curr = NULL;
        for (;;)
                {
-               if ((curr == NULL) || (curr == last)) break;
-               curr = curr2;
-               curr2 = reverse ? curr->prev : curr->next;
+               if (curr == last) break;
+
+               curr = next;
+
+               if (curr == NULL) break;
+
+               next = reverse ? curr->prev : curr->next;
 
                cp = curr->cipher;
 
@@ -1672,6 +1694,9 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
        case SSL_kSRP:
                kx="SRP";
                break;
+       case SSL_kGOST:
+               kx="GOST";
+               break;
        default:
                kx="unknown";
                }
@@ -1702,6 +1727,15 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
        case SSL_aPSK:
                au="PSK";
                break;
+       case SSL_aSRP:
+               au="SRP";
+               break;
+       case SSL_aGOST94:
+               au="GOST94";
+               break;
+       case SSL_aGOST01:
+               au="GOST01";
+               break;
        default:
                au="unknown";
                break;
@@ -1749,6 +1783,9 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
        case SSL_SEED:
                enc="SEED(128)";
                break;
+       case SSL_eGOST2814789CNT:
+               enc="GOST89(256)";
+               break;
        default:
                enc="unknown";
                break;
@@ -1771,6 +1808,12 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
        case SSL_AEAD:
                mac="AEAD";
                break;
+       case SSL_GOST89MAC:
+               mac="GOST89";
+               break;
+       case SSL_GOST94:
+               mac="GOST94";
+               break;
        default:
                mac="unknown";
                break;
@@ -1870,9 +1913,23 @@ STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void)
        return(ssl_comp_methods);
        }
 
-void SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) *meths)
+STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) *meths)
        {
+       STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
        ssl_comp_methods = meths;
+       return old_meths;
+       }
+
+static void cmeth_free(SSL_COMP *cm)
+       {
+       OPENSSL_free(cm);
+       }
+
+void SSL_COMP_free_compression_methods(void)
+       {
+       STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods;
+       ssl_comp_methods = NULL;
+       sk_SSL_COMP_pop_free(old_meths, cmeth_free);
        }
 
 int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm)
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