andykimpe / rpms / 389-ds-base

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From 7c4efde501b8af0469ff15602d8d046657dec4aa Mon Sep 17 00:00:00 2001
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From: Noriko Hosoi <nhosoi@redhat.com>
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Date: Tue, 10 May 2016 14:41:10 -0700
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Subject: [PATCH 400/404] Ticket #48816 - (1.2.11 only) add a nsTLS1.0 on or
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 off new configuration parameter to cn=encryption,cn=config in RHEL 6
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 389-ds-base
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Description: 389-ds-base-1.2.11 has no way to disable TLS1.0.  This patch is
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adding config params nsTLS10, nsTLS11 and nsTLS12 to cn=encryption,cn=config
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so that the definition of nsTLS1 remains intact if the new parameters are not
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specified explicitely.  If nsTLS10, nsTLS11 or nsTLS12 appear in the config
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entry, nsTLS1 is ignored and the new parameters are added.
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Default values:
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nsTLS1: on
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nsTLS10,nsTLS11,nsTLS12: ignored
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Examples:
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  cn=encryption,cn=config
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  [no SSL version settings]
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    ==> sslVersionMin: TLS1.0
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  cn=encryption,cn=config
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  nsTLS1: on
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    ==> sslVersionMin: TLS1.0
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  cn=encryption,cn=config
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  nsTLS1: on | off
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  nsTLS10: on
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    ==> sslVersionMin: TLS1.0
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    ==> Note: nsTLS1 is ignored.
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  cn=encryption,cn=config
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  nsTLS11: on
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    ==> sslVersionMin: TLS1.1
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  cn=encryption,cn=config
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  nsTLS12: on
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    ==> sslVersionMin: TLS1.2
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Special cases:
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  If all SSL version config parameters are off, SSL fails to configure.
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  cn=encryption,cn=config
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  nsTLS10: off
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  nsTLS11: off
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  nsTLS12: off
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  nsTLS1: off
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    ==> SSL configuration fails.
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    ==> Note: nsSSL3 is off by default.
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  cn=encryption,cn=config
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  nsTLS10: on
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  nsTLS12: off
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    ==> sslVersionMin: TLS1.0
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    ==> Note: nsTLS12 is ignored.
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        Even if off is set to the higher SSL version as in this example,
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        it is not used as sslVersionMax, but it is ignored.
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https://fedorahosted.org/389/ticket/48816
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Thanks so much for the ideas, comments and discussions, William, Ludwig, and Mark!!
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Final review was made by wibrown@redhat.com (Thank you, William!!)
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(cherry picked from commit 6111400a7b21785823e16b1071fc29bc21542213)
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---
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 ldap/schema/01core389.ldif |  5 +++-
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 ldap/servers/slapd/ssl.c   | 71 +++++++++++++++++++++++++++++++++++++++-------
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 2 files changed, 65 insertions(+), 11 deletions(-)
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diff --git a/ldap/schema/01core389.ldif b/ldap/schema/01core389.ldif
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index c962dc0..afa4ee6 100644
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--- a/ldap/schema/01core389.ldif
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+++ b/ldap/schema/01core389.ldif
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@@ -119,6 +119,9 @@ attributeTypes: ( nsKeyfile-oid NAME 'nsKeyfile' DESC 'Netscape defined attribut
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 attributeTypes: ( nsSSL2-oid NAME 'nsSSL2' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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 attributeTypes: ( nsSSL3-oid NAME 'nsSSL3' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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 attributeTypes: ( nsTLS1-oid NAME 'nsTLS1' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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+attributeTypes: ( nsTLS10-oid NAME 'nsTLS10' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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+attributeTypes: ( nsTLS11-oid NAME 'nsTLS11' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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+attributeTypes: ( nsTLS12-oid NAME 'nsTLS12' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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 attributeTypes: ( nsSSLClientAuth-oid NAME 'nsSSLClientAuth' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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 attributeTypes: ( nsSSLSessionTimeout-oid NAME 'nsSSLSessionTimeout' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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 attributeTypes: ( nsSSL3SessionTimeout-oid NAME 'nsSSL3SessionTimeout' DESC 'Netscape defined attribute type' SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 X-ORIGIN 'Netscape' )
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@@ -172,5 +175,5 @@ objectClasses: ( 2.16.840.1.113730.3.2.103 NAME 'nsDS5ReplicationAgreement' DESC
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 objectClasses: ( 2.16.840.1.113730.3.2.39 NAME 'nsslapdConfig' DESC 'Netscape defined objectclass' SUP top MAY ( cn ) X-ORIGIN 'Netscape Directory Server' )
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 objectClasses: ( 2.16.840.1.113730.3.2.317 NAME 'nsSaslMapping' DESC 'Netscape defined objectclass' SUP top MUST ( cn $ nsSaslMapRegexString $ nsSaslMapBaseDNTemplate $ nsSaslMapFilterTemplate ) X-ORIGIN 'Netscape Directory Server' )
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 objectClasses: ( 2.16.840.1.113730.3.2.43 NAME 'nsSNMP' DESC 'Netscape defined objectclass' SUP top MUST ( cn $ nsSNMPEnabled ) MAY ( nsSNMPOrganization $ nsSNMPLocation $ nsSNMPContact $ nsSNMPDescription $ nsSNMPName $ nsSNMPMasterHost $ nsSNMPMasterPort ) X-ORIGIN 'Netscape Directory Server' )
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-objectClasses: ( nsEncryptionConfig-oid NAME 'nsEncryptionConfig' DESC 'Netscape defined objectclass' SUP top MUST ( cn ) MAY ( nsCertfile $ nsKeyfile $ nsSSL2 $ nsSSL3 $ nsTLS1 $ nsSSLSessionTimeout $ nsSSL3SessionTimeout $ nsSSLClientAuth $ nsSSL2Ciphers $ nsSSL3Ciphers $ nsSSLSupportedCiphers $ allowWeakDHParam ) X-ORIGIN 'Netscape' )
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+objectClasses: ( nsEncryptionConfig-oid NAME 'nsEncryptionConfig' DESC 'Netscape defined objectclass' SUP top MUST ( cn ) MAY ( nsCertfile $ nsKeyfile $ nsSSL2 $ nsSSL3 $ nsTLS1 $ nsTLS10 $ nsTLS11 $ nsTLS12 $ nsSSLSessionTimeout $ nsSSL3SessionTimeout $ nsSSLClientAuth $ nsSSL2Ciphers $ nsSSL3Ciphers $ nsSSLSupportedCiphers $ allowWeakDHParam ) X-ORIGIN 'Netscape' )
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 objectClasses: ( nsEncryptionModule-oid NAME 'nsEncryptionModule' DESC 'Netscape defined objectclass' SUP top MUST ( cn ) MAY ( nsSSLToken $ nsSSLPersonalityssl $ nsSSLActivation ) X-ORIGIN 'Netscape' )
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diff --git a/ldap/servers/slapd/ssl.c b/ldap/servers/slapd/ssl.c
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index 090c328..37a176f 100644
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--- a/ldap/servers/slapd/ssl.c
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+++ b/ldap/servers/slapd/ssl.c
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@@ -1058,6 +1058,9 @@ int slapd_ssl_init2(PRFileDesc **fd, int startTLS)
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     Slapi_Entry *e = NULL;
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     PRBool enableSSL2 = PR_FALSE;
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     PRBool enableSSL3 = PR_FALSE;
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+    int enableTLS10 = -1;
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+    int enableTLS11 = -1;
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+    int enableTLS12 = -1;
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     PRBool enableTLS1 = PR_TRUE;
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     PRBool fipsMode = PR_FALSE;
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 #if !defined(NSS_TLS10) /* NSS_TLS11 or newer */
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@@ -1414,6 +1417,39 @@ int slapd_ssl_init2(PRFileDesc **fd, int startTLS)
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             }
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         }
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         slapi_ch_free_string( &val );
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+        val = slapi_entry_attr_get_charptr( e, "nsTLS10" );
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+        if ( val ) {
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+            if ( !strcasecmp( val, "off" ) ) {
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+                enableTLS10 = 0;
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+            } else if ( !strcasecmp( val, "on" ) ) {
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+                enableTLS10 = 1;
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+            } else {
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+                enableTLS10 = slapi_entry_attr_get_bool(e, "nsTLS10")?1:0;
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+            }
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+        }
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+        slapi_ch_free_string( &val );
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+        val = slapi_entry_attr_get_charptr( e, "nsTLS11" );
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+        if ( val ) {
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+            if ( !strcasecmp( val, "off" ) ) {
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+                enableTLS11 = 0;
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+            } else if ( !strcasecmp( val, "on" ) ) {
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+                enableTLS11 = 1;
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+            } else {
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+                enableTLS11 = slapi_entry_attr_get_bool(e, "nsTLS11")?1:0;
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+            }
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+        }
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+        slapi_ch_free_string( &val );
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+        val = slapi_entry_attr_get_charptr( e, "nsTLS12" );
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+        if ( val ) {
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+            if ( !strcasecmp( val, "off" ) ) {
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+                enableTLS12 = 0;
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+            } else if ( !strcasecmp( val, "on" ) ) {
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+                enableTLS12 = 1;
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+            } else {
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+                enableTLS12 = slapi_entry_attr_get_bool(e, "nsTLS12")?1:0;
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+            }
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+        }
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+        slapi_ch_free_string( &val );
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         val = slapi_entry_attr_get_charptr( e, "nsTLS1" );
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         if ( val ) {
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             if ( !strcasecmp( val, "off" ) ) {
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@@ -1430,25 +1466,40 @@ int slapd_ssl_init2(PRFileDesc **fd, int startTLS)
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 #if !defined(NSS_TLS10) /* NSS_TLS11 or newer */
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     if (NSSVersionMin > 0) {
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         char mymin[VERSION_STR_LENGTH], mymax[VERSION_STR_LENGTH];
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+        NSSVersionMax = enabledNSSVersions.max;
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         /* Use new NSS API SSL_VersionRangeSet (NSS3.14 or newer) */
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-        if (enableTLS1) {
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+        if ((enableTLS10 >= 0) || (enableTLS11 >= 0) || (enableTLS12 >= 0)) {
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+            if (enableTLS10 > 0) {
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+                NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_0;
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+            } else if (enableTLS11 > 0) {
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+                NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_1;
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+            } else if (enableTLS12 > 0) {
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+                NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_2;
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+            } else if (enableTLS1) {
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+                NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_0;
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+            } else if (enableSSL3) {
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+                NSSVersionMin = SSL_LIBRARY_VERSION_3_0;
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+                NSSVersionMax = SSL_LIBRARY_VERSION_3_0;
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+            } else {
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+                slapd_SSL_error("SSL Initialization 2: all SSL version parameters are off. "
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+                                "Enable nsTLS1 or nsTLS10, nsTLS11, nsTLS12.");
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+                return 0;
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+            }
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+        } else if (enableTLS1) {
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             NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_0;
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-        } else {
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+        } else if (enableSSL3) {
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             NSSVersionMin = SSL_LIBRARY_VERSION_3_0;
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             NSSVersionMax = SSL_LIBRARY_VERSION_3_0;
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-        }
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-        if (enableSSL3) {
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-            NSSVersionMin = SSL_LIBRARY_VERSION_3_0;
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-        } else if (!enableTLS1) {
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-            slapd_SSL_error("SSL Initialization 2: Both nsSSL3 and nsTLS1 are off.  Enabling nsTLS1.");
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-            NSSVersionMin = SSL_LIBRARY_VERSION_TLS_1_0;
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-            NSSVersionMax = enabledNSSVersions.max;
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+        } else {
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+            slapd_SSL_error("SSL Initialization 2: all SSL version parameters are off. "
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+                            "Enable nsTLS1 or nsTLS10, nsTLS11, nsTLS12.");
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+            return 0;
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         }
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         slapdNSSVersions.min = NSSVersionMin;
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         slapdNSSVersions.max = NSSVersionMax;
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         (void) slapi_getSSLVersion_str(slapdNSSVersions.min, mymin, sizeof(mymin));
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         (void) slapi_getSSLVersion_str(slapdNSSVersions.max, mymax, sizeof(mymax));
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-        slapi_log_error(SLAPI_LOG_CONFIG, "SSL Initialization",
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+        slapi_log_error(SLAPI_LOG_FATAL, "SSL Initialization",
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                         "Configured SSL version range: min: %s, max: %s\n",
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                         mymin, mymax);
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         sslStatus = SSL_VersionRangeSet(pr_sock, &slapdNSSVersions);
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-- 
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2.4.11
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