mbedtls: make mbedtls_strerror always work

If the function doesn't exist, provide a macro that just clears the
error message. Removes #ifdef uses from the code.

Closes #7162
This commit is contained in:
Daniel Stenberg 2021-06-01 09:38:42 +02:00
parent c7b93a76ea
commit a2b1bbeef0
No known key found for this signature in database
GPG Key ID: 5CC908FDB71E12C2

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@ -89,6 +89,10 @@ struct ssl_backend_data {
#define THREADING_SUPPORT
#endif
#ifndef MBEDTLS_ERROR_C
#define mbedtls_strerror(a,b,c) b[0] = 0
#endif
#if defined(THREADING_SUPPORT)
static mbedtls_entropy_context ts_entropy;
@ -256,7 +260,6 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
const long int port = SSL_HOST_PORT();
int ret = -1;
char errorbuf[128];
errorbuf[0] = 0;
if((SSL_CONN_CONFIG(version) == CURL_SSLVERSION_SSLv2) ||
(SSL_CONN_CONFIG(version) == CURL_SSLVERSION_SSLv3)) {
@ -271,9 +274,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_ctr_drbg_seed(&backend->ctr_drbg, entropy_func_mutex,
&ts_entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s",
-ret, errorbuf);
}
@ -284,9 +285,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_ctr_drbg_seed(&backend->ctr_drbg, mbedtls_entropy_func,
&backend->entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_init returned (-0x%04X) %s",
-ret, errorbuf);
}
@ -299,9 +298,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_x509_crt_parse_file(&backend->cacert, ssl_cafile);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert file %s - mbedTLS: (-0x%04X) %s",
ssl_cafile, -ret, errorbuf);
@ -314,9 +311,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_x509_crt_parse_path(&backend->cacert, ssl_capath);
if(ret<0) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading ca cert path %s - mbedTLS: (-0x%04X) %s",
ssl_capath, -ret, errorbuf);
@ -332,9 +327,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_x509_crt_parse_file(&backend->clicert, ssl_cert);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading client cert file %s - mbedTLS: (-0x%04X) %s",
ssl_cert, -ret, errorbuf);
@ -349,12 +342,9 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ssl_cert_blob->len);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error parsing client cert blob - mbedTLS: (-0x%04X) %s",
-ret, errorbuf);
failf(data, "Error reading private key %s - mbedTLS: (-0x%04X) %s",
SSL_SET_OPTION(key), -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
}
}
@ -368,9 +358,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
SSL_SET_OPTION(key_passwd));
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading private key %s - mbedTLS: (-0x%04X) %s",
SSL_SET_OPTION(key), -ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
@ -386,9 +374,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
passwd ? strlen(passwd) : 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error parsing private key - mbedTLS: (-0x%04X) %s",
-ret, errorbuf);
return CURLE_SSL_CERTPROBLEM;
@ -407,9 +393,7 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
ret = mbedtls_x509_crl_parse_file(&backend->crl, ssl_crlfile);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Error reading CRL file %s - mbedTLS: (-0x%04X) %s",
ssl_crlfile, -ret, errorbuf);
@ -591,10 +575,7 @@ mbed_connect_step2(struct Curl_easy *data, struct connectdata *conn,
}
else if(ret) {
char errorbuf[128];
errorbuf[0] = 0;
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "ssl_handshake returned - mbedTLS: (-0x%04X) %s",
-ret, errorbuf);
return CURLE_SSL_CONNECT_ERROR;
@ -887,15 +868,12 @@ static CURLcode mbedtls_random(struct Curl_easy *data,
mbedtls_ctr_drbg_context ctr_drbg;
mbedtls_entropy_init(&ctr_entropy);
mbedtls_ctr_drbg_init(&ctr_drbg);
errorbuf[0] = 0;
ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func,
&ctr_entropy, NULL, 0);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "Failed - mbedTLS: ctr_drbg_seed returned (-0x%04X) %s",
-ret, errorbuf);
}
@ -903,9 +881,7 @@ static CURLcode mbedtls_random(struct Curl_easy *data,
ret = mbedtls_ctr_drbg_random(&ctr_drbg, entropy, length);
if(ret) {
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror(ret, errorbuf, sizeof(errorbuf));
#endif /* MBEDTLS_ERROR_C */
failf(data, "mbedTLS: ctr_drbg_init returned (-0x%04X) %s",
-ret, errorbuf);
}