Mercurial > hg > nginx
diff src/event/ngx_event_openssl.c @ 7653:8409f9df6219
SSL: client certificate validation with OCSP (ticket #1534).
OCSP validation for client certificates is enabled by the "ssl_ocsp" directive.
OCSP responder can be optionally specified by "ssl_ocsp_responder".
When session is reused, peer chain is not available for validation.
If the verified chain contains certificates from the peer chain not available
at the server, validation will fail.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Fri, 22 May 2020 17:30:12 +0300 |
parents | f1720934c45b |
children | 699f6e55bbb4 7995cd199b52 |
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--- a/src/event/ngx_event_openssl.c +++ b/src/event/ngx_event_openssl.c @@ -130,6 +130,7 @@ int ngx_ssl_connection_index; int ngx_ssl_server_conf_index; int ngx_ssl_session_cache_index; int ngx_ssl_session_ticket_keys_index; +int ngx_ssl_ocsp_index; int ngx_ssl_certificate_index; int ngx_ssl_next_certificate_index; int ngx_ssl_certificate_name_index; @@ -213,6 +214,13 @@ ngx_ssl_init(ngx_log_t *log) return NGX_ERROR; } + ngx_ssl_ocsp_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL); + if (ngx_ssl_ocsp_index == -1) { + ngx_ssl_error(NGX_LOG_ALERT, log, 0, + "SSL_CTX_get_ex_new_index() failed"); + return NGX_ERROR; + } + ngx_ssl_certificate_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL, NULL); if (ngx_ssl_certificate_index == -1) { @@ -1594,6 +1602,7 @@ ngx_ssl_handshake(ngx_connection_t *c) { int n, sslerr; ngx_err_t err; + ngx_int_t rc; #ifdef SSL_READ_EARLY_DATA_SUCCESS if (c->ssl->try_early_data) { @@ -1601,6 +1610,10 @@ ngx_ssl_handshake(ngx_connection_t *c) } #endif + if (c->ssl->in_ocsp) { + return ngx_ssl_ocsp_validate(c); + } + ngx_ssl_clear_error(c->log); n = SSL_do_handshake(c->ssl->connection); @@ -1621,8 +1634,6 @@ ngx_ssl_handshake(ngx_connection_t *c) ngx_ssl_handshake_log(c); #endif - c->ssl->handshaked = 1; - c->recv = ngx_ssl_recv; c->send = ngx_ssl_write; c->recv_chain = ngx_ssl_recv_chain; @@ -1641,6 +1652,20 @@ ngx_ssl_handshake(ngx_connection_t *c) #endif #endif + rc = ngx_ssl_ocsp_validate(c); + + if (rc == NGX_ERROR) { + return NGX_ERROR; + } + + if (rc == NGX_AGAIN) { + c->read->handler = ngx_ssl_handshake_handler; + c->write->handler = ngx_ssl_handshake_handler; + return NGX_AGAIN; + } + + c->ssl->handshaked = 1; + return NGX_OK; } @@ -1710,6 +1735,7 @@ ngx_ssl_try_early_data(ngx_connection_t u_char buf; size_t readbytes; ngx_err_t err; + ngx_int_t rc; ngx_ssl_clear_error(c->log); @@ -1744,7 +1770,6 @@ ngx_ssl_try_early_data(ngx_connection_t c->ssl->early_buf = buf; c->ssl->early_preread = 1; - c->ssl->handshaked = 1; c->ssl->in_early = 1; c->recv = ngx_ssl_recv; @@ -1752,6 +1777,20 @@ ngx_ssl_try_early_data(ngx_connection_t c->recv_chain = ngx_ssl_recv_chain; c->send_chain = ngx_ssl_send_chain; + rc = ngx_ssl_ocsp_validate(c); + + if (rc == NGX_ERROR) { + return NGX_ERROR; + } + + if (rc == NGX_AGAIN) { + c->read->handler = ngx_ssl_handshake_handler; + c->write->handler = ngx_ssl_handshake_handler; + return NGX_AGAIN; + } + + c->ssl->handshaked = 1; + return NGX_OK; } @@ -2735,6 +2774,8 @@ ngx_ssl_shutdown(ngx_connection_t *c) int n, sslerr, mode; ngx_err_t err; + ngx_ssl_ocsp_cleanup(c); + if (SSL_in_init(c->ssl->connection)) { /* * OpenSSL 1.0.2f complains if SSL_shutdown() is called during @@ -4894,11 +4935,14 @@ ngx_ssl_get_client_verify(ngx_connection rc = SSL_get_verify_result(c->ssl->connection); if (rc == X509_V_OK) { - ngx_str_set(s, "SUCCESS"); - return NGX_OK; - } - - str = X509_verify_cert_error_string(rc); + if (ngx_ssl_ocsp_get_status(c, &str) == NGX_OK) { + ngx_str_set(s, "SUCCESS"); + return NGX_OK; + } + + } else { + str = X509_verify_cert_error_string(rc); + } s->data = ngx_pnalloc(pool, sizeof("FAILED:") - 1 + ngx_strlen(str)); if (s->data == NULL) {