source: trunk/server/common/patches/httpd-SSLCompression.patch @ 2375

Description: mod_ssl: Add new directive SSLCompression to disable TLS-level compression.
Origin: http://svn.apache.org/viewvc?view=revision&revision=1369585

diff -Naur httpd-2.2.22/modules/ssl/mod_ssl.c httpd-2.2.22.patched/modules/ssl/mod_ssl.c
--- httpd-2.2.22/modules/ssl/mod_ssl.c  2010-07-12 14:47:45.000000000 -0400
+++ httpd-2.2.22.patched/modules/ssl/mod_ssl.c  2012-09-12 17:10:57.417861707 -0400
@@ -146,6 +146,9 @@
                 "(`[+-][SSLv2|SSLv3|TLSv1] ...' - see manual)")
     SSL_CMD_SRV(HonorCipherOrder, FLAG,
                 "Use the server's cipher ordering preference")
+    SSL_CMD_SRV(Compression, FLAG,
+                "Enable SSL level compression"
+                "(`on', `off')")
     SSL_CMD_SRV(InsecureRenegotiation, FLAG,
                 "Enable support for insecure renegotiation")
     SSL_CMD_ALL(UserName, TAKE1,
diff -Naur httpd-2.2.22/modules/ssl/ssl_engine_config.c httpd-2.2.22.patched/modules/ssl/ssl_engine_config.c
--- httpd-2.2.22/modules/ssl/ssl_engine_config.c        2011-04-14 09:56:17.000000000 -0400
+++ httpd-2.2.22.patched/modules/ssl/ssl_engine_config.c        2012-09-12 17:10:57.425862035 -0400
@@ -178,6 +178,9 @@
 #ifdef HAVE_FIPS
     sc->fips                   = UNSET;
 #endif
+#ifndef OPENSSL_NO_COMP
+    sc->compression            = UNSET;
+#endif
 
     modssl_ctx_init_proxy(sc, p);
 
@@ -275,6 +278,9 @@
 #ifdef HAVE_FIPS
     cfgMergeBool(fips);
 #endif
+#ifndef OPENSSL_NO_COMP
+    cfgMergeBool(compression);
+#endif
 
     modssl_ctx_cfg_merge_proxy(base->proxy, add->proxy, mrg->proxy);
 
@@ -708,6 +714,23 @@
 
 }
 
+const char *ssl_cmd_SSLCompression(cmd_parms *cmd, void *dcfg, int flag)
+{
+#if !defined(OPENSSL_NO_COMP)
+    SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
+#ifndef SSL_OP_NO_COMPRESSION
+    const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
+    if (err)
+        return "This version of openssl does not support configuring "
+               "compression within <VirtualHost> sections.";
+#endif
+    sc->compression = flag ? TRUE : FALSE;
+    return NULL;
+#else
+    return "Setting Compression mode unsupported; not implemented by the SSL library";
+#endif
+}
+
 const char *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag)
 {
 #ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
diff -Naur httpd-2.2.22/modules/ssl/ssl_engine_init.c httpd-2.2.22.patched/modules/ssl/ssl_engine_init.c
--- httpd-2.2.22/modules/ssl/ssl_engine_init.c  2011-04-14 09:56:17.000000000 -0400
+++ httpd-2.2.22.patched/modules/ssl/ssl_engine_init.c  2012-09-12 17:10:57.419861789 -0400
@@ -503,6 +503,18 @@
     }
 #endif
 
+
+#ifndef OPENSSL_NO_COMP
+    if (sc->compression == FALSE) {
+#ifdef SSL_OP_NO_COMPRESSION
+        /* OpenSSL >= 1.0 only */
+        SSL_CTX_set_options(ctx, SSL_OP_NO_COMPRESSION);
+#elif OPENSSL_VERSION_NUMBER >= 0x00908000L
+        sk_SSL_COMP_zero(SSL_COMP_get_compression_methods());
+#endif
+    }
+#endif
+
 #ifdef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
     if (sc->insecure_reneg == TRUE) {
         SSL_CTX_set_options(ctx, SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION);
diff -Naur httpd-2.2.22/modules/ssl/ssl_private.h httpd-2.2.22.patched/modules/ssl/ssl_private.h
--- httpd-2.2.22/modules/ssl/ssl_private.h      2011-04-14 09:56:17.000000000 -0400
+++ httpd-2.2.22.patched/modules/ssl/ssl_private.h      2012-09-12 18:11:48.762900287 -0400
@@ -486,6 +486,9 @@
 #ifdef HAVE_FIPS
     BOOL             fips;
 #endif
+#ifndef OPENSSL_NO_COMP
+    BOOL             compression;
+#endif
 };
 
 /**
@@ -542,6 +545,7 @@
 const char  *ssl_cmd_SSLCARevocationPath(cmd_parms *, void *, const char *);
 const char  *ssl_cmd_SSLCARevocationFile(cmd_parms *, void *, const char *);
 const char  *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag);
+const char  *ssl_cmd_SSLCompression(cmd_parms *, void *, int flag);
 const char  *ssl_cmd_SSLVerifyClient(cmd_parms *, void *, const char *);
 const char  *ssl_cmd_SSLVerifyDepth(cmd_parms *, void *, const char *);
 const char  *ssl_cmd_SSLSessionCache(cmd_parms *, void *, const char *);
diff -Naur httpd-2.2.22/modules/ssl/ssl_toolkit_compat.h httpd-2.2.22.patched/modules/ssl/ssl_toolkit_compat.h
--- httpd-2.2.22/modules/ssl/ssl_toolkit_compat.h       2010-07-12 14:47:45.000000000 -0400
+++ httpd-2.2.22.patched/modules/ssl/ssl_toolkit_compat.h       2012-09-12 18:12:09.982772267 -0400
@@ -276,6 +276,11 @@
 #endif
 #endif
 
+#if !defined(OPENSSL_NO_COMP) && !defined(SSL_OP_NO_COMPRESSION) \
+    && OPENSSL_VERSION_NUMBER < 0x00908000L
+#define OPENSSL_NO_COMP
+#endif
+
 #endif /* SSL_TOOLKIT_COMPAT_H */
 
 /** @} */