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b077aed33b
Migrate to OpenSSL 3.0 in advance of FreeBSD 14.0. OpenSSL 1.1.1 (the version we were previously using) will be EOL as of 2023-09-11. Most of the base system has already been updated for a seamless switch to OpenSSL 3.0. For many components we've added `-DOPENSSL_API_COMPAT=0x10100000L` to CFLAGS to specify the API version, which avoids deprecation warnings from OpenSSL 3.0. Changes have also been made to avoid OpenSSL APIs that were already deprecated in OpenSSL 1.1.1. The process of updating to contemporary APIs can continue after this merge. Additional changes are still required for libarchive and Kerberos- related libraries or tools; workarounds will immediately follow this commit. Fixes are in progress in the upstream projects and will be incorporated when those are next updated. There are some performance regressions in benchmarks (certain tests in `openssl speed`) and in some OpenSSL consumers in ports (e.g. haproxy). Investigation will continue for these. Netflix's testing showed no functional regression and a rather small, albeit statistically significant, increase in CPU consumption with OpenSSL 3.0. Thanks to ngie@ and des@ for updating base system components, to antoine@ and bofh@ for ports exp-runs and port fixes/workarounds, and to Netflix and everyone who tested prior to commit or contributed to this update in other ways. PR: 271615 PR: 271656 [exp-run] Relnotes: Yes Sponsored by: The FreeBSD Foundation
247 lines
8.4 KiB
C
247 lines
8.4 KiB
C
/*
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* Copyright 2018-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include "ssl_local.h"
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#include "internal/ktls.h"
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#if defined(__FreeBSD__)
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# include "crypto/cryptodev.h"
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/*-
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* Check if a given cipher is supported by the KTLS interface.
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* The kernel might still fail the setsockopt() if no suitable
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* provider is found, but this checks if the socket option
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* supports the cipher suite used at all.
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*/
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int ktls_check_supported_cipher(const SSL *s, const EVP_CIPHER *c,
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const EVP_CIPHER_CTX *dd)
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{
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switch (s->version) {
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case TLS1_VERSION:
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case TLS1_1_VERSION:
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case TLS1_2_VERSION:
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case TLS1_3_VERSION:
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break;
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default:
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return 0;
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}
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switch (s->s3.tmp.new_cipher->algorithm_enc) {
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case SSL_AES128GCM:
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case SSL_AES256GCM:
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return 1;
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case SSL_AES128:
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case SSL_AES256:
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if (s->ext.use_etm)
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return 0;
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switch (s->s3.tmp.new_cipher->algorithm_mac) {
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case SSL_SHA1:
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case SSL_SHA256:
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case SSL_SHA384:
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return 1;
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default:
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return 0;
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}
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default:
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return 0;
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}
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}
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/* Function to configure kernel TLS structure */
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int ktls_configure_crypto(const SSL *s, const EVP_CIPHER *c, EVP_CIPHER_CTX *dd,
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void *rl_sequence, ktls_crypto_info_t *crypto_info,
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unsigned char **rec_seq, unsigned char *iv,
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unsigned char *key, unsigned char *mac_key,
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size_t mac_secret_size)
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{
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memset(crypto_info, 0, sizeof(*crypto_info));
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switch (s->s3.tmp.new_cipher->algorithm_enc) {
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case SSL_AES128GCM:
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case SSL_AES256GCM:
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crypto_info->cipher_algorithm = CRYPTO_AES_NIST_GCM_16;
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if (s->version == TLS1_3_VERSION) {
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crypto_info->iv_len = EVP_CIPHER_CTX_get_iv_length(dd);
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if (crypto_info->iv_len < 0)
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return 0;
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}
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else
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crypto_info->iv_len = EVP_GCM_TLS_FIXED_IV_LEN;
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break;
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case SSL_AES128:
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case SSL_AES256:
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switch (s->s3.tmp.new_cipher->algorithm_mac) {
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case SSL_SHA1:
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crypto_info->auth_algorithm = CRYPTO_SHA1_HMAC;
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break;
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case SSL_SHA256:
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crypto_info->auth_algorithm = CRYPTO_SHA2_256_HMAC;
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break;
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case SSL_SHA384:
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crypto_info->auth_algorithm = CRYPTO_SHA2_384_HMAC;
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break;
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default:
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return 0;
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}
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crypto_info->cipher_algorithm = CRYPTO_AES_CBC;
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crypto_info->iv_len = EVP_CIPHER_get_iv_length(c);
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crypto_info->auth_key = mac_key;
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crypto_info->auth_key_len = mac_secret_size;
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break;
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default:
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return 0;
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}
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crypto_info->cipher_key = key;
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crypto_info->cipher_key_len = EVP_CIPHER_get_key_length(c);
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crypto_info->iv = iv;
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crypto_info->tls_vmajor = (s->version >> 8) & 0x000000ff;
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crypto_info->tls_vminor = (s->version & 0x000000ff);
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# ifdef TCP_RXTLS_ENABLE
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memcpy(crypto_info->rec_seq, rl_sequence, sizeof(crypto_info->rec_seq));
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if (rec_seq != NULL)
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*rec_seq = crypto_info->rec_seq;
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# else
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if (rec_seq != NULL)
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*rec_seq = NULL;
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# endif
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return 1;
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};
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#endif /* __FreeBSD__ */
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#if defined(OPENSSL_SYS_LINUX)
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/* Function to check supported ciphers in Linux */
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int ktls_check_supported_cipher(const SSL *s, const EVP_CIPHER *c,
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const EVP_CIPHER_CTX *dd)
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{
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switch (s->version) {
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case TLS1_2_VERSION:
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case TLS1_3_VERSION:
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break;
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default:
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return 0;
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}
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/* check that cipher is AES_GCM_128, AES_GCM_256, AES_CCM_128
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* or Chacha20-Poly1305
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*/
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# ifdef OPENSSL_KTLS_AES_CCM_128
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if (EVP_CIPHER_is_a(c, "AES-128-CCM")) {
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if (s->version == TLS_1_3_VERSION /* broken on 5.x kernels */
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|| EVP_CIPHER_CTX_get_tag_length(dd) != EVP_CCM_TLS_TAG_LEN)
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return 0;
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return 1;
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} else
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# endif
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if (0
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# ifdef OPENSSL_KTLS_AES_GCM_128
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|| EVP_CIPHER_is_a(c, "AES-128-GCM")
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# endif
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# ifdef OPENSSL_KTLS_AES_GCM_256
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|| EVP_CIPHER_is_a(c, "AES-256-GCM")
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# endif
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# ifdef OPENSSL_KTLS_CHACHA20_POLY1305
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|| EVP_CIPHER_is_a(c, "ChaCha20-Poly1305")
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# endif
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) {
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return 1;
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}
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return 0;
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}
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/* Function to configure kernel TLS structure */
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int ktls_configure_crypto(const SSL *s, const EVP_CIPHER *c, EVP_CIPHER_CTX *dd,
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void *rl_sequence, ktls_crypto_info_t *crypto_info,
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unsigned char **rec_seq, unsigned char *iv,
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unsigned char *key, unsigned char *mac_key,
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size_t mac_secret_size)
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{
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unsigned char geniv[12];
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unsigned char *iiv = iv;
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if (s->version == TLS1_2_VERSION &&
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EVP_CIPHER_get_mode(c) == EVP_CIPH_GCM_MODE) {
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if (!EVP_CIPHER_CTX_get_updated_iv(dd, geniv,
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EVP_GCM_TLS_FIXED_IV_LEN
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+ EVP_GCM_TLS_EXPLICIT_IV_LEN))
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return 0;
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iiv = geniv;
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}
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memset(crypto_info, 0, sizeof(*crypto_info));
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switch (EVP_CIPHER_get_nid(c))
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{
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# ifdef OPENSSL_KTLS_AES_GCM_128
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case NID_aes_128_gcm:
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crypto_info->gcm128.info.cipher_type = TLS_CIPHER_AES_GCM_128;
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crypto_info->gcm128.info.version = s->version;
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crypto_info->tls_crypto_info_len = sizeof(crypto_info->gcm128);
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memcpy(crypto_info->gcm128.iv, iiv + EVP_GCM_TLS_FIXED_IV_LEN,
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TLS_CIPHER_AES_GCM_128_IV_SIZE);
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memcpy(crypto_info->gcm128.salt, iiv, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
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memcpy(crypto_info->gcm128.key, key, EVP_CIPHER_get_key_length(c));
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memcpy(crypto_info->gcm128.rec_seq, rl_sequence,
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TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
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if (rec_seq != NULL)
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*rec_seq = crypto_info->gcm128.rec_seq;
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return 1;
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# endif
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# ifdef OPENSSL_KTLS_AES_GCM_256
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case NID_aes_256_gcm:
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crypto_info->gcm256.info.cipher_type = TLS_CIPHER_AES_GCM_256;
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crypto_info->gcm256.info.version = s->version;
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crypto_info->tls_crypto_info_len = sizeof(crypto_info->gcm256);
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memcpy(crypto_info->gcm256.iv, iiv + EVP_GCM_TLS_FIXED_IV_LEN,
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TLS_CIPHER_AES_GCM_256_IV_SIZE);
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memcpy(crypto_info->gcm256.salt, iiv, TLS_CIPHER_AES_GCM_256_SALT_SIZE);
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memcpy(crypto_info->gcm256.key, key, EVP_CIPHER_get_key_length(c));
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memcpy(crypto_info->gcm256.rec_seq, rl_sequence,
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TLS_CIPHER_AES_GCM_256_REC_SEQ_SIZE);
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if (rec_seq != NULL)
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*rec_seq = crypto_info->gcm256.rec_seq;
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return 1;
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# endif
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# ifdef OPENSSL_KTLS_AES_CCM_128
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case NID_aes_128_ccm:
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crypto_info->ccm128.info.cipher_type = TLS_CIPHER_AES_CCM_128;
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crypto_info->ccm128.info.version = s->version;
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crypto_info->tls_crypto_info_len = sizeof(crypto_info->ccm128);
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memcpy(crypto_info->ccm128.iv, iiv + EVP_CCM_TLS_FIXED_IV_LEN,
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TLS_CIPHER_AES_CCM_128_IV_SIZE);
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memcpy(crypto_info->ccm128.salt, iiv, TLS_CIPHER_AES_CCM_128_SALT_SIZE);
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memcpy(crypto_info->ccm128.key, key, EVP_CIPHER_get_key_length(c));
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memcpy(crypto_info->ccm128.rec_seq, rl_sequence,
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TLS_CIPHER_AES_CCM_128_REC_SEQ_SIZE);
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if (rec_seq != NULL)
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*rec_seq = crypto_info->ccm128.rec_seq;
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return 1;
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# endif
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# ifdef OPENSSL_KTLS_CHACHA20_POLY1305
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case NID_chacha20_poly1305:
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crypto_info->chacha20poly1305.info.cipher_type = TLS_CIPHER_CHACHA20_POLY1305;
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crypto_info->chacha20poly1305.info.version = s->version;
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crypto_info->tls_crypto_info_len = sizeof(crypto_info->chacha20poly1305);
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memcpy(crypto_info->chacha20poly1305.iv, iiv,
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TLS_CIPHER_CHACHA20_POLY1305_IV_SIZE);
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memcpy(crypto_info->chacha20poly1305.key, key,
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EVP_CIPHER_get_key_length(c));
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memcpy(crypto_info->chacha20poly1305.rec_seq, rl_sequence,
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TLS_CIPHER_CHACHA20_POLY1305_REC_SEQ_SIZE);
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if (rec_seq != NULL)
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*rec_seq = crypto_info->chacha20poly1305.rec_seq;
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return 1;
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# endif
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default:
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return 0;
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}
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}
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#endif /* OPENSSL_SYS_LINUX */
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