import_options!{ // The following values are directly from recent OpenSSL SSL_OP_MICROSOFT_SESS_ID_BUG 0x00000001 SSL_OP_NETSCAPE_CHALLENGE_BUG 0x00000002 SSL_OP_LEGACY_SERVER_CONNECT 0x00000004 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG 0x00000008 SSL_OP_TLSEXT_PADDING 0x00000010 SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER 0x00000020 SSL_OP_SAFARI_ECDHE_ECDSA_BUG 0x00000040 SSL_OP_SSLEAY_080_CLIENT_DH_BUG 0x00000080 SSL_OP_TLS_D5_BUG 0x00000100 SSL_OP_TLS_BLOCK_PADDING_BUG 0x00000200 // unused: 0x00000400 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 0x00000800 SSL_OP_NO_QUERY_MTU 0x00001000 SSL_OP_COOKIE_EXCHANGE 0x00002000 SSL_OP_NO_TICKET 0x00004000 SSL_OP_CISCO_ANYCONNECT 0x00008000 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0x00010000 SSL_OP_NO_COMPRESSION 0x00020000 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0x00040000 SSL_OP_SINGLE_ECDH_USE 0x00080000 SSL_OP_SINGLE_DH_USE 0x00100000 // unused: 0x00200000 SSL_OP_CIPHER_SERVER_PREFERENCE 0x00400000 SSL_OP_TLS_ROLLBACK_BUG 0x00800000 SSL_OP_NO_SSLv2 0x01000000 SSL_OP_NO_SSLv3 0x02000000 SSL_OP_NO_DTLSv1 0x04000000 SSL_OP_NO_TLSv1 0x04000000 SSL_OP_NO_DTLSv1_2 0x08000000 SSL_OP_NO_TLSv1_2 0x08000000 SSL_OP_NO_TLSv1_1 0x10000000 SSL_OP_NETSCAPE_CA_DN_BUG 0x20000000 SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG 0x40000000 SSL_OP_CRYPTOPRO_TLSEXT_BUG 0x80000000 // The following values were in 32-bit range in old OpenSSL SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG 0x100000000 SSL_OP_MSIE_SSLV2_RSA_PADDING 0x200000000 SSL_OP_PKCS1_CHECK_1 0x400000000 SSL_OP_PKCS1_CHECK_2 0x800000000 // The following values were redefined to 0 for security reasons SSL_OP_EPHEMERAL_RSA 0x0 }