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Fix unused variable warnings in some builds

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Found by depends.py MBEDTLS_SHA512_C

In principle, the case where neither SHA-256 nor SHA-384 are available
should never occur, as both TLS 1.2 and TLS 1.3 depend on one of those
being defined. However for now dependencies for TLS 1.2 are not as tight
as they should be; this will be fixed later and is tracked as #6441.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2023-02-06 22:03:06 +01:00
parent 43cc127d3a
commit 626aaed213
1 changed files with 11 additions and 6 deletions
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17
library/ssl_tls.c
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@ -818,12 +818,16 @@ int mbedtls_ssl_add_hs_msg_to_checksum(mbedtls_ssl_context *ssl,
int mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl)
{
#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) || \
defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_status_t status;
#else
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#endif
#else /* SHA-256 or SHA-384 */
((void) ssl);
#endif /* SHA-256 or SHA-384 */
#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
#if defined(MBEDTLS_USE_PSA_CRYPTO)
status = psa_hash_abort(&ssl->handshake->fin_sha256_psa);
@ -864,11 +868,18 @@ int mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl)
static int ssl_update_checksum_start(mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len)
{
#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) || \
defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_status_t status;
#else
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
#endif
#else /* SHA-256 or SHA-384 */
((void) ssl);
(void) buf;
(void) len;
#endif /* SHA-256 or SHA-384 */
#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
#if defined(MBEDTLS_USE_PSA_CRYPTO)
status = psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len);
@ -894,12 +905,6 @@ static int ssl_update_checksum_start(mbedtls_ssl_context *ssl,
return ret;
}
#endif
#endif
#if !defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
!defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
(void) ssl;
(void) buf;
(void) len;
#endif
return 0;
}