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/* 
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). 
 * You may not use this file except in compliance with the License. 
 * A copy of the License is located at 
 * 
 *  http://aws.amazon.com/apache2.0 
 * 
 * or in the "license" file accompanying this file. This file is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 
 * express or implied. See the License for the specific language governing 
 * permissions and limitations under the License. 
 */ 
 
#pragma once 
 
#include <stdint.h> 
#include "tls/s2n_cipher_preferences.h" 
#include "tls/s2n_kem_preferences.h" 
#include "tls/s2n_signature_scheme.h" 
#include "tls/s2n_ecc_preferences.h" 
 
/* Kept up-to-date by s2n_security_policies_test */ 
#define NUM_RSA_PSS_SCHEMES 6 
 
struct s2n_security_policy { 
    uint8_t minimum_protocol_version; 
    const struct s2n_cipher_preferences *cipher_preferences; 
    const struct s2n_kem_preferences *kem_preferences; 
    const struct s2n_signature_preferences *signature_preferences; 
    const struct s2n_signature_preferences *certificate_signature_preferences; 
    const struct s2n_ecc_preferences *ecc_preferences; 
}; 
 
struct s2n_security_policy_selection { 
    const char *version; 
    const struct s2n_security_policy *security_policy; 
    unsigned ecc_extension_required:1; 
    unsigned pq_kem_extension_required:1; 
    unsigned supports_tls13:1; 
}; 
 
extern struct s2n_security_policy_selection security_policy_selection[]; 
 
extern const struct s2n_security_policy security_policy_20140601; 
extern const struct s2n_security_policy security_policy_20141001; 
extern const struct s2n_security_policy security_policy_20150202; 
extern const struct s2n_security_policy security_policy_20150214; 
extern const struct s2n_security_policy security_policy_20150306; 
extern const struct s2n_security_policy security_policy_20160411; 
extern const struct s2n_security_policy security_policy_20160804; 
extern const struct s2n_security_policy security_policy_20160824; 
extern const struct s2n_security_policy security_policy_20170210; 
extern const struct s2n_security_policy security_policy_20170328; 
extern const struct s2n_security_policy security_policy_20170405; 
extern const struct s2n_security_policy security_policy_20170718; 
extern const struct s2n_security_policy security_policy_20190214; 
extern const struct s2n_security_policy security_policy_20190801; 
extern const struct s2n_security_policy security_policy_20190802; 
extern const struct s2n_security_policy security_policy_20201110; 
extern const struct s2n_security_policy security_policy_test_all; 
 
extern const struct s2n_security_policy security_policy_test_all_tls12; 
extern const struct s2n_security_policy security_policy_test_all_fips; 
extern const struct s2n_security_policy security_policy_test_all_ecdsa; 
extern const struct s2n_security_policy security_policy_test_ecdsa_priority; 
extern const struct s2n_security_policy security_policy_test_all_rsa_kex; 
extern const struct s2n_security_policy security_policy_test_all_tls13; 
 
/* See https://docs.aws.amazon.com/elasticloadbalancing/latest/application/create-https-listener.html */ 
extern const struct s2n_security_policy security_policy_elb_2015_04; 
extern const struct s2n_security_policy security_policy_elb_2016_08; 
extern const struct s2n_security_policy security_policy_elb_tls_1_2_2017_01; 
extern const struct s2n_security_policy security_policy_elb_tls_1_1_2017_01; 
extern const struct s2n_security_policy security_policy_elb_tls_1_2_ext_2018_06; 
extern const struct s2n_security_policy security_policy_elb_fs_2018_06; 
extern const struct s2n_security_policy security_policy_elb_fs_1_2_2019_08; 
extern const struct s2n_security_policy security_policy_elb_fs_1_1_2019_08; 
extern const struct s2n_security_policy security_policy_elb_fs_1_2_res_2019_08; 
 
#if !defined(S2N_NO_PQ) 
extern const struct s2n_security_policy security_policy_kms_pq_tls_1_0_2019_06; 
extern const struct s2n_security_policy security_policy_kms_pq_tls_1_0_2020_02; 
extern const struct s2n_security_policy security_policy_kms_pq_tls_1_0_2020_07; 
extern const struct s2n_security_policy security_policy_pq_sike_test_tls_1_0_2019_11; 
extern const struct s2n_security_policy security_policy_pq_sike_test_tls_1_0_2020_02; 
extern const struct s2n_security_policy security_policy_pq_tls_1_0_2020_12; 
#endif 
 
extern const struct s2n_security_policy security_policy_cloudfront_upstream; 
extern const struct s2n_security_policy security_policy_cloudfront_upstream_tls10; 
extern const struct s2n_security_policy security_policy_cloudfront_upstream_tls12; 
extern const struct s2n_security_policy security_policy_cloudfront_ssl_v_3; 
extern const struct s2n_security_policy security_policy_cloudfront_tls_1_0_2014; 
extern const struct s2n_security_policy security_policy_cloudfront_tls_1_0_2016; 
extern const struct s2n_security_policy security_policy_cloudfront_tls_1_1_2016; 
extern const struct s2n_security_policy security_policy_cloudfront_tls_1_2_2018; 
extern const struct s2n_security_policy security_policy_cloudfront_tls_1_2_2019; 
 
extern const struct s2n_security_policy security_policy_kms_tls_1_0_2018_10; 
extern const struct s2n_security_policy security_policy_kms_fips_tls_1_2_2018_10; 
 
extern const struct s2n_security_policy security_policy_20190120; 
extern const struct s2n_security_policy security_policy_20190121; 
extern const struct s2n_security_policy security_policy_20190122; 
 
extern const struct s2n_security_policy security_policy_null; 
 
int s2n_security_policies_init(); 
int s2n_config_set_cipher_preferences(struct s2n_config *config, const char *version); 
int s2n_connection_set_cipher_preferences(struct s2n_connection *conn, const char *version); 
bool s2n_ecc_is_extension_required(const struct s2n_security_policy *security_policy); 
bool s2n_pq_kem_is_extension_required(const struct s2n_security_policy *security_policy); 
bool s2n_security_policy_supports_tls13(const struct s2n_security_policy *security_policy); 
int s2n_find_security_policy_from_version(const char *version, const struct s2n_security_policy **security_policy); 
int s2n_validate_kem_preferences(const struct s2n_kem_preferences *kem_preferences, bool pq_kem_extension_required); 
S2N_RESULT s2n_validate_certificate_signature_preferences(const struct s2n_signature_preferences *s2n_certificate_signature_preferences);