Add support for minimum and maximum protocol version supported by a cipher

Reviewed-by: NViktor Dukhovni <viktor@openssl.org>

MR: #1595

ssl/ssl_ciph.c

@@ -319,122 +319,123 @@ typedef struct cipher_order_st {
 
 static const SSL_CIPHER cipher_aliases[] = {
     /* "ALL" doesn't include eNULL (must be specifically enabled) */
-    {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_ALL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
     /* "COMPLEMENTOFALL" */
-    {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_CMPALL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
     /*
      * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in
      * ALL!)
      */
-    {0, SSL_TXT_CMPDEF, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0},
+    {0, SSL_TXT_CMPDEF, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT, 0, 0, 0},
 
     /*
      * key exchange aliases (some of those using only a single bit here
      * combine multiple key exchange algs according to the RFCs, e.g. kDHE
      * combines DHE_DSS and DHE_RSA)
      */
-    {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kRSA, 0, SSL_kRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
-    {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_DH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0,
-     0},
+    {0, SSL_TXT_kEDH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kDHE, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_DH, 0, SSL_kDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
-    {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_ECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0,
-     0, 0, 0},
+    {0, SSL_TXT_kEECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kECDHE, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_ECDH, 0, SSL_kECDHE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
-    {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kPSK, 0, SSL_kPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kRSAPSK, 0, SSL_kRSAPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kECDHEPSK, 0, SSL_kECDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kDHEPSK, 0, SSL_kDHEPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kSRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_kGOST, 0, SSL_kGOST, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
     /* server authentication aliases */
-    {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 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_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0,
+    {0, SSL_TXT_aRSA, 0, 0, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aDSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_DSS, 0, 0, SSL_aDSS, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aNULL, 0, 0, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_ECDSA, 0, 0, SSL_aECDSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aPSK, 0, 0, SSL_aPSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aGOST01, 0, 0, SSL_aGOST01, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aGOST12, 0, 0, SSL_aGOST12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aGOST, 0, 0, SSL_aGOST01 | SSL_aGOST12, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0},
-    {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_aSRP, 0, 0, SSL_aSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
     /* aliases combining key exchange and server authentication */
-    {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~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_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_EDH, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_DHE, 0, SSL_kDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_EECDH, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_ECDHE, 0, SSL_kECDHE, ~SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_NULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_RSA, 0, SSL_kRSA, SSL_aRSA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_ADH, 0, SSL_kDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_AECDH, 0, SSL_kECDHE, SSL_aNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_PSK, 0, SSL_PSK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SRP, 0, SSL_kSRP, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
 
     /* symmetric encryption aliases */
-    {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_DES, 0, 0, 0, SSL_DES, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_3DES, 0, 0, 0, SSL_3DES, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_RC4, 0, 0, 0, SSL_RC4, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_RC2, 0, 0, 0, SSL_RC2, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_IDEA, 0, 0, 0, SSL_IDEA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SEED, 0, 0, 0, SSL_SEED, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_eNULL, 0, 0, 0, SSL_eNULL, 0, 0, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_GOST, 0, 0, 0, SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12, 0,
-     0, 0, 0, 0, 0},
+     0, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_AES128, 0, 0, 0, SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8, 0,
-     0, 0, 0, 0, 0},
+     0, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_AES256, 0, 0, 0, SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8, 0,
-     0, 0, 0, 0, 0},
-    {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0},
+     0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_AES, 0, 0, 0, SSL_AES, 0, 0, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_AES_GCM, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM, 0, 0, 0, 0,
-     0, 0},
-    {0, SSL_TXT_AES_CCM, 0, 0, 0, SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0,
-     0, 0},
+     0, 0, 0, 0, 0},
+    {0, SSL_TXT_AES_CCM, 0, 0, 0,
+     SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0,
+     0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_AES_CCM_8, 0, 0, 0, SSL_AES128CCM8 | SSL_AES256CCM8, 0, 0, 0, 0,
      0, 0},
-    {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA, 0, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_CHACHA20, 0, 0, 0, SSL_CHACHA20, 0, 0, 0, 0, 0, 0 },
+    {0, SSL_TXT_CAMELLIA128, 0, 0, 0, SSL_CAMELLIA128, 0, 0, 0, 0, 0, 0, 0, 0,
+     0},
+    {0, SSL_TXT_CAMELLIA256, 0, 0, 0, SSL_CAMELLIA256, 0, 0, 0, 0, 0, 0, 0, 0,
+     0},
+    {0, SSL_TXT_CAMELLIA, 0, 0, 0, SSL_CAMELLIA, 0, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_CHACHA20, 0, 0, 0, SSL_CHACHA20, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
 
     /* MAC aliases */
-    {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_MD5, 0, 0, 0, 0, SSL_MD5, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SHA1, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SHA, 0, 0, 0, 0, SSL_SHA1, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_GOST94, 0, 0, 0, 0, SSL_GOST94, 0, 0, 0, 0, 0, 0, 0, 0},
     {0, SSL_TXT_GOST89MAC, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12, 0, 0,
-     0, 0, 0},
-    {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0},
-    {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0},
+     0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SHA256, 0, 0, 0, 0, SSL_SHA256, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_SHA384, 0, 0, 0, 0, SSL_SHA384, 0, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_GOST12, 0, 0, 0, 0, SSL_GOST12_256, 0, 0, 0, 0, 0, 0, 0, 0},
 
     /* protocol version aliases */
-    {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
-    {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, SSL_SSLV3, 0, 0, 0, 0},
-    {0, "TLSv1.0", 0, 0, 0, 0, 0, SSL_TLSV1, 0, 0, 0, 0},
-    {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, SSL_TLSV1_2, 0, 0, 0, 0},
+    {0, SSL_TXT_SSLV3, 0, 0, 0, 0, 0, SSL3_VERSION, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_TLSV1, 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0},
+    {0, "TLSv1.0", 0, 0, 0, 0, 0, TLS1_VERSION, 0, 0, 0, 0, 0, 0, 0},
+    {0, SSL_TXT_TLSV1_2, 0, 0, 0, 0, 0, TLS1_2_VERSION, 0, 0, 0, 0, 0, 0, 0},
 
     /* strength classes */
-    {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
-    {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
-    {0, SSL_TXT_HIGH, 0, 0, 0, 0, 0, 0, SSL_HIGH, 0, 0, 0},
+    {0, SSL_TXT_LOW, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW, 0, 0, 0},
+    {0, SSL_TXT_MEDIUM, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM, 0, 0, 0},
+    {0, SSL_TXT_HIGH, 0, 0, 0, 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},
+    {0, SSL_TXT_FIPS, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, SSL_FIPS, 0, 0, 0},
 
     /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */
     {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, 0,
-     SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, SSL_SSLV3,
+     SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, 0, 0, 0, 0,
      SSL_HIGH | SSL_FIPS, 0, 0, 0,},
     {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, 0,
-     SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, SSL_SSLV3,
+     SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, 0, 0, 0, 0,
      SSL_HIGH | SSL_FIPS, 0, 0, 0,},
 
 };
@@ -892,7 +893,7 @@ static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list,
 
 static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey,
                                   uint32_t alg_auth, uint32_t alg_enc,
-                                  uint32_t alg_mac, uint32_t alg_ssl,
+                                  uint32_t alg_mac, int min_tls,
                                   uint32_t algo_strength, int rule,
                                   int32_t strength_bits, CIPHER_ORDER **head_p,
                                   CIPHER_ORDER **tail_p)
@@ -904,7 +905,7 @@ static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey,
 #ifdef CIPHER_DEBUG
     fprintf(stderr,
             "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n",
-            rule, alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl,
+            rule, alg_mkey, alg_auth, alg_enc, alg_mac, min_tls,
             algo_strength, strength_bits);
 #endif
 
@@ -960,7 +961,7 @@ static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey,
                 continue;
             if (alg_mac && !(alg_mac & cp->algorithm_mac))
                 continue;
-            if (alg_ssl && !(alg_ssl & cp->algorithm_ssl))
+            if (min_tls && (min_tls != cp->min_tls))
                 continue;
             if (algo_strength && !(algo_strength & cp->algo_strength))
                 continue;
@@ -1076,7 +1077,8 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
                                       CIPHER_ORDER **tail_p,
                                       const SSL_CIPHER **ca_list, CERT *c)
 {
-    uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, alg_ssl, algo_strength;
+    uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, algo_strength;
+    int min_tls;
     const char *l, *buf;
     int j, multi, found, rule, retval, ok, buflen;
     uint32_t cipher_id = 0;
@@ -1114,7 +1116,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
         alg_auth = 0;
         alg_enc = 0;
         alg_mac = 0;
-        alg_ssl = 0;
+        min_tls = 0;
         algo_strength = 0;
 
         for (;;) {
@@ -1266,15 +1268,13 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
                  * protocol version is considered part of the search pattern
                  */
 
-                if (ca_list[j]->algorithm_ssl) {
-                    if (alg_ssl) {
-                        alg_ssl &= ca_list[j]->algorithm_ssl;
-                        if (!alg_ssl) {
-                            found = 0;
-                            break;
-                        }
-                    } else
-                        alg_ssl = ca_list[j]->algorithm_ssl;
+                if (ca_list[j]->min_tls) {
+                    if (min_tls != 0 && min_tls != ca_list[j]->min_tls) {
+                        found = 0;
+                        break;
+                    } else {
+                        min_tls = ca_list[j]->min_tls;
+                    }
                 }
             }
 
@@ -1314,7 +1314,7 @@ static int ssl_cipher_process_rulestr(const char *rule_str,
         } else if (found) {
             ssl_cipher_apply_rule(cipher_id,
                                   alg_mkey, alg_auth, alg_enc, alg_mac,
-                                  alg_ssl, algo_strength, rule, -1, head_p,
+                                  min_tls, algo_strength, rule, -1, head_p,
                                   tail_p);
         } else {
             while ((*l != '\0') && !ITEM_SEP(*l))
@@ -1505,7 +1505,7 @@ STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, STACK
      * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs.
      * TODO(openssl-team): is there an easier way to accomplish all this?
      */
-    ssl_cipher_apply_rule(0, 0, 0, 0, 0, SSL_TLSV1_2, 0, CIPHER_BUMP, -1,
+    ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1,
                           &head, &tail);
 
     /*
@@ -1641,7 +1641,7 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
     alg_enc = cipher->algorithm_enc;
     alg_mac = cipher->algorithm_mac;
 
-    ver = SSL_CIPHER_get_version(cipher);
+    ver = ssl_protocol_to_string(cipher->min_tls);
 
     switch (alg_mkey) {
     case SSL_kRSA:
@@ -1809,19 +1809,9 @@ char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len)
 
 const char *SSL_CIPHER_get_version(const SSL_CIPHER *c)
 {
-    uint32_t alg_ssl;
-
     if (c == NULL)
         return "(NONE)";
-    alg_ssl = c->algorithm_ssl;
-
-    if (alg_ssl & SSL_SSLV3)
-        return "SSLv3";
-    if (alg_ssl & SSL_TLSV1)
-        return "TLSv1.0";
-    if (alg_ssl & SSL_TLSV1_2)
-        return "TLSv1.2";
-    return "unknown";
+    return ssl_protocol_to_string(c->min_tls);
 }
 
 /* return the actual cipher being used */

ssl/ssl_lib.c

@@ -3060,7 +3060,7 @@ SSL_METHOD *ssl_bad_method(int ver)
     return (NULL);
 }
 
-const char *version_to_string(int version)
+const char *ssl_protocol_to_string(int version)
 {
     if (version == TLS1_2_VERSION)
         return "TLSv1.2";
@@ -3082,7 +3082,7 @@ const char *version_to_string(int version)
 
 const char *SSL_get_version(const SSL *s)
 {
-    return version_to_string(s->version);
+    return ssl_protocol_to_string(s->version);
 }
 
 SSL *SSL_dup(SSL *s)

ssl/ssl_locl.h

@@ -378,11 +378,6 @@
 # define SSL_GOST89MAC12         0x00000100U
 # define SSL_GOST12_512          0x00000200U
 
-/* Bits for algorithm_ssl (protocol version) */
-# define SSL_SSLV3               0x00000002U
-# define SSL_TLSV1               0x00000004U
-# define SSL_TLSV1_2             0x00000008U
-
 /*
  * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
  * sure to update this constant too
@@ -517,7 +512,10 @@ struct ssl_cipher_st {
     uint32_t algorithm_auth; /* server authentication */
     uint32_t algorithm_enc;  /* symmetric encryption */
     uint32_t algorithm_mac;  /* symmetric authentication */
-    uint32_t algorithm_ssl;  /* (major) protocol version */
+    int min_tls;             /* minimum SSL/TLS protocol version */
+    int max_tls;             /* maximum SSL/TLS protocol version */
+    int min_dtls;            /* minimum DTLS protocol version */
+    int max_dtls;            /* maximum DTLS protocol version */
     uint32_t algo_strength;  /* strength and export flags */
     uint32_t algorithm2;     /* Extra flags */
     int32_t strength_bits;   /* Number of bits really used */
@@ -1347,8 +1345,13 @@ typedef struct ssl3_state_st {
          */
         uint32_t mask_k;
         uint32_t mask_a;
-        /* Client only */
-        uint32_t mask_ssl;
+        /*
+         * The following are used by the client to see if a cipher is allowed or
+         * not.  It contains the minimum and maximum version the client's using
+         * based on what it knows so far.
+         */
+        int min_ver;
+        int max_ver;
     } tmp;
 
     /* Connection binding to prevent renegotiation attacks */
@@ -1871,7 +1874,7 @@ struct openssl_ssl_test_functions {
 # endif
 };
 
-const char *version_to_string(int version);
+const char *ssl_protocol_to_string(int version);
 
 # ifndef OPENSSL_UNIT_TEST
 

ssl/ssl_txt.c

@@ -111,7 +111,7 @@ int SSL_SESSION_print(BIO *bp, const SSL_SESSION *x)
         goto err;
     if (BIO_puts(bp, "SSL-Session:\n") <= 0)
         goto err;
-    s = version_to_string(x->ssl_version);
+    s = ssl_protocol_to_string(x->ssl_version);
     if (BIO_printf(bp, "    Protocol  : %s\n", s) <= 0)
         goto err;
 

ssl/statem/statem_clnt.c

@@ -1143,17 +1143,15 @@ MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt)
         SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_UNKNOWN_CIPHER_RETURNED);
         goto f_err;
     }
-    /* Set version disabled mask now we know version */
-    if (!SSL_USE_TLS1_2_CIPHERS(s))
-        s->s3->tmp.mask_ssl = SSL_TLSV1_2;
-    else
-        s->s3->tmp.mask_ssl = 0;
-    /* Skip TLS v1.0 ciphersuites if SSLv3 */
-    if ((c->algorithm_ssl & SSL_TLSV1) && s->version == SSL3_VERSION)
-        s->s3->tmp.mask_ssl |= SSL_TLSV1;
     /*
-     * If it is a disabled cipher we didn't send it in client hello, so
-     * return an error.
+     * Now that we know the version, update the check to see if it's an allowed
+     * version.
+     */
+    s->s3->tmp.min_ver = s->version;
+    s->s3->tmp.max_ver = s->version;
+    /*
+     * If it is a disabled cipher we either didn't send it in client hello,
+     * or it's not allowed for the selected protocol. So we return an error.
      */
     if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK)) {
         al = SSL_AD_ILLEGAL_PARAMETER;

ssl/statem/statem_lib.c

@@ -1117,13 +1117,13 @@ int ssl_get_client_min_max_version(const SSL *s, int *min_version, int *max_vers
  */
 int ssl_set_client_hello_version(SSL *s)
 {
-    int min, max, ret;
+    int ver_min, ver_max, ret;
 
-    ret = ssl_get_client_min_max_version(s, &min, &max);
+    ret = ssl_get_client_min_max_version(s, &ver_min, &ver_max);
 
     if (ret != 0)
         return ret;
 
-    s->client_version = s->version = max;
+    s->client_version = s->version = ver_max;
     return 0;
 }

ssl/t1_lib.c

@@ -982,24 +982,21 @@ int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
 }
 
 /*
- * Get a mask of disabled algorithms: an algorithm is disabled if it isn't
- * supported or doesn't appear in supported signature algorithms. Unlike
- * ssl_cipher_get_disabled this applies to a specific session and not global
- * settings.
+ * Set a mask of disabled algorithms: an algorithm is disabled if it isn't
+ * supported, doesn't appear in supported signature algorithms, isn't supported
+ * by the enabled protocol versions or by the security level.
+ *
+ * This function should only be used for checking which ciphers are supported
+ * by the client.
+ *
+ * Call ssl_cipher_disabled() to check that it's enabled or not.
  */
 void ssl_set_client_disabled(SSL *s)
 {
     s->s3->tmp.mask_a = 0;
     s->s3->tmp.mask_k = 0;
-    /* Don't allow TLS 1.2 only ciphers if we don't suppport them */
-    if (!SSL_CLIENT_USE_TLS1_2_CIPHERS(s))
-        s->s3->tmp.mask_ssl = SSL_TLSV1_2;
-    else
-        s->s3->tmp.mask_ssl = 0;
-    /* Disable TLS 1.0 ciphers if using SSL v3 */
-    if (s->client_version == SSL3_VERSION)
-        s->s3->tmp.mask_ssl |= SSL_TLSV1;
     ssl_set_sig_mask(&s->s3->tmp.mask_a, s, SSL_SECOP_SIGALG_MASK);
+    ssl_get_client_min_max_version(s, &s->s3->tmp.min_ver, &s->s3->tmp.max_ver);
 # ifndef OPENSSL_NO_PSK
     /* with PSK there must be client callback set */
     if (!s->psk_client_callback) {
@@ -1015,12 +1012,28 @@ void ssl_set_client_disabled(SSL *s)
 #endif
 }
 
+/*
+ * ssl_cipher_disabled - check that a cipher is disabled or not
+ * @s: SSL connection that you want to use the cipher on
+ * @c: cipher to check
+ * @op: Security check that you want to do
+ *
+ * Returns 1 when it's disabled, 0 when enabled.
+ */
 int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op)
 {
-    if (c->algorithm_ssl & s->s3->tmp.mask_ssl
-        || c->algorithm_mkey & s->s3->tmp.mask_k
+    if (c->algorithm_mkey & s->s3->tmp.mask_k
         || c->algorithm_auth & s->s3->tmp.mask_a)
         return 1;
+    if (s->s3->tmp.max_ver == 0)
+        return 1;
+    if (!SSL_IS_DTLS(s) && ((c->min_tls > s->s3->tmp.max_ver)
+            || (c->max_tls < s->s3->tmp.min_ver)))
+        return 1;
+    if (SSL_IS_DTLS(s) && (DTLS_VERSION_GT(c->min_dtls, s->s3->tmp.max_ver)
+            || DTLS_VERSION_LT(c->max_dtls, s->s3->tmp.min_ver)))
+        return 1;
+
     return !ssl_security(s, op, c->strength_bits, 0, (void *)c);
 }