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change(esp-tls): add option to enable/disable the full set of OCSP checks for wolfSSL (IDFGH-13619) #14503

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change(esp-tls): add option to enable/disable the full set of OCSP checks for wolfSSL (IDFGH-13619) #14503

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8 changes: 8 additions & 0 deletions components/esp-tls/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -115,4 +115,12 @@ menu "ESP-TLS"
help
Enable detailed debug prints for wolfSSL SSL library.

config ESP_TLS_OCSP_CHECKALL
bool "Enabled full OCSP checks for ESP-TLS"
depends on ESP_TLS_USING_WOLFSSL
default y
help
Enable a fuller set of OCSP checks: checking revocation status of intermediate certificates,
optional fallbacks to CRLs, etc.

endmenu
6 changes: 5 additions & 1 deletion components/esp-tls/esp_tls_wolfssl.c
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Expand Up @@ -316,8 +316,12 @@ static esp_err_t set_client_config(const char *hostname, size_t hostlen, esp_tls
}

#ifdef CONFIG_WOLFSSL_HAVE_OCSP
int ocsp_options = 0;
#ifdef ESP_TLS_OCSP_CHECKALL
ocsp_options |= WOLFSSL_OCSP_CHECKALL;
#endif
/* enable OCSP certificate status check for this TLS context */
if ((ret = wolfSSL_CTX_EnableOCSP((WOLFSSL_CTX *)tls->priv_ctx, WOLFSSL_OCSP_CHECKALL)) != WOLFSSL_SUCCESS) {
if ((ret = wolfSSL_CTX_EnableOCSP((WOLFSSL_CTX *)tls->priv_ctx, ocsp_options)) != WOLFSSL_SUCCESS) {
ESP_LOGE(TAG, "wolfSSL_CTX_EnableOCSP failed, returned %d", ret);
return ESP_ERR_WOLFSSL_CTX_SETUP_FAILED;
}
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