MINOR: ssl: Add helper function that extracts an OCSP URI from a certificate

This function extracts the first OCSP URI (if any) contained in a
certificate. It only takes the first of potentially multiple URIs.
This commit is contained in:
Remi Tricot-Le Breton 2022-12-20 11:11:04 +01:00 committed by William Lallemand
parent 95e7cf1ddf
commit 47a4f1239d
2 changed files with 34 additions and 1 deletions

View File

@ -87,6 +87,7 @@ int ssl_sock_get_pkey_algo(struct connection *conn, struct buffer *out);
unsigned int ssl_sock_get_verify_result(struct connection *conn); unsigned int ssl_sock_get_verify_result(struct connection *conn);
#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) #if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err); int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err);
int ssl_ocsp_get_uri_from_cert(X509 *cert, struct buffer *out, char **err);
#endif #endif
#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0) #if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref, int ssl_sock_update_tlskey_ref(struct tls_keys_ref *ref,

View File

@ -1141,8 +1141,40 @@ int ssl_sock_update_ocsp_response(struct buffer *ocsp_response, char **err)
return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err); return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
} }
#endif
/*
* Extract the first OCSP URI (if any) contained in <cert> and write it into
* <out>.
* Returns 0 in case of success, 1 otherwise.
*/
int ssl_ocsp_get_uri_from_cert(X509 *cert, struct buffer *out, char **err)
{
STACK_OF(OPENSSL_STRING) *ocsp_uri_stk = NULL;
int ret = 1;
if (!cert || !out)
goto end;
ocsp_uri_stk = X509_get1_ocsp(cert);
if (ocsp_uri_stk == NULL) {
memprintf(err, "%sNo OCSP URL stack!\n", *err ? *err : "");
goto end;
}
chunk_strcpy(out, sk_OPENSSL_STRING_value(ocsp_uri_stk, 0));
if (b_data(out) == 0) {
memprintf(err, "%sNo OCSP URL!\n", *err ? *err : "");
goto end;
}
ret = 0;
end:
X509_email_free(ocsp_uri_stk);
return ret;
}
#endif /* defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP */
/* /*
* Initialize an HMAC context <hctx> using the <key> and <md> parameters. * Initialize an HMAC context <hctx> using the <key> and <md> parameters.