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76 lines
2.4 KiB
76 lines
2.4 KiB
diff --git a/ext/openssl/deprecation.rb b/ext/openssl/deprecation.rb
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index d773536..f4a6c4b 100644
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--- a/ext/openssl/deprecation.rb
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+++ b/ext/openssl/deprecation.rb
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@@ -19,4 +19,9 @@ def self.check_func(func, header)
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have_func(func, header, deprecated_warning_flag) and
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have_header(header, nil, deprecated_warning_flag)
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end
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+
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+ def self.check_func_or_macro(func, header)
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+ check_func(func, header) or
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+ have_macro(func, header) && $defs.push("-DHAVE_#{func.upcase}")
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+ end
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end
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diff --git a/ext/openssl/lib/openssl/ssl.rb b/ext/openssl/lib/openssl/ssl.rb
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index 9893757..bcb167e 100644
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--- a/ext/openssl/lib/openssl/ssl.rb
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+++ b/ext/openssl/lib/openssl/ssl.rb
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@@ -105,11 +105,12 @@ class SSLContext
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# SSLContext.new("SSLv23_client") => ctx
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#
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# You can get a list of valid methods with OpenSSL::SSL::SSLContext::METHODS
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- def initialize(version = nil)
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+ def initialize(version = nil, fallback_scsv: false)
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INIT_VARS.each { |v| instance_variable_set v, nil }
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self.options = self.options | OpenSSL::SSL::OP_ALL
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return unless version
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self.ssl_version = version
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+ self.enable_fallback_scsv if fallback_scsv
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end
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##
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diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
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index cc17a0c..9f7ee0b 100644
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--- a/ext/openssl/ossl_ssl.c
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+++ b/ext/openssl/ossl_ssl.c
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@@ -978,6 +978,31 @@ ossl_sslctx_set_ciphers(VALUE self, VALUE v)
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return v;
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}
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+/*
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+ * call-seq:
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+ * ctx.enable_fallback_scsv() => nil
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+ *
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+ * Activate TLS_FALLBACK_SCSV for this context.
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+ * See RFC 7507.
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+ */
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+static VALUE
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+ossl_sslctx_enable_fallback_scsv(VALUE self)
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+{
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+ SSL_CTX *ctx;
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+
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+ GetSSLCTX(self, ctx);
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+ if(!ctx){
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+ rb_warning("SSL_CTX is not initialized.");
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+ return Qnil;
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+ }
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+
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+ long modes = SSL_CTX_get_mode(ctx);
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+ modes |= SSL_MODE_SEND_FALLBACK_SCSV;
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+ SSL_CTX_set_mode(ctx, modes);
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+
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+ return Qnil;
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+}
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+
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#if !defined(OPENSSL_NO_EC)
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/*
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* call-seq:
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@@ -2330,6 +2355,7 @@ Init_ossl_ssl(void)
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rb_define_method(cSSLContext, "ciphers", ossl_sslctx_get_ciphers, 0);
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rb_define_method(cSSLContext, "ciphers=", ossl_sslctx_set_ciphers, 1);
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rb_define_method(cSSLContext, "ecdh_curves=", ossl_sslctx_set_ecdh_curves, 1);
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+ rb_define_method(cSSLContext, "enable_fallback_scsv", ossl_sslctx_enable_fallback_scsv, 0);
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rb_define_method(cSSLContext, "setup", ossl_sslctx_setup, 0);
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