2 * Copyright 2007-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright Nokia 2007-2019
4 * Copyright Siemens AG 2015-2019
6 * Licensed under the Apache License 2.0 (the "License"). You may not use
7 * this file except in compliance with the License. You can obtain a copy
8 * in the file LICENSE in the source distribution or at
9 * https://www.openssl.org/source/license.html
15 #include <openssl/asn1t.h>
16 #include <openssl/http.h>
18 #include <openssl/cmp.h>
19 #include "cmp_local.h"
21 /* explicit #includes not strictly needed since implied by the above: */
25 #include <openssl/bio.h>
26 #include <openssl/buffer.h>
27 #include <openssl/cmp.h>
28 #include <openssl/err.h>
30 static int keep_alive(int keep_alive, int body_type)
33 /* Ask for persistent connection only if may need more round trips */
34 && body_type != OSSL_CMP_PKIBODY_IR
35 && body_type != OSSL_CMP_PKIBODY_CR
36 && body_type != OSSL_CMP_PKIBODY_P10CR
37 && body_type != OSSL_CMP_PKIBODY_KUR
38 && body_type != OSSL_CMP_PKIBODY_POLLREQ)
44 * Send the PKIMessage req and on success return the response, else NULL.
45 * Any previous error queue entries will likely be removed by ERR_clear_error().
47 OSSL_CMP_MSG *OSSL_CMP_MSG_http_perform(OSSL_CMP_CTX *ctx,
48 const OSSL_CMP_MSG *req)
50 char server_port[32] = { '\0' };
51 STACK_OF(CONF_VALUE) *headers = NULL;
52 const char content_type_pkix[] = "application/pkixcmp";
54 const ASN1_ITEM *it = ASN1_ITEM_rptr(OSSL_CMP_MSG);
56 OSSL_CMP_MSG *res = NULL;
58 if (ctx == NULL || req == NULL) {
59 ERR_raise(ERR_LIB_CMP, CMP_R_NULL_ARGUMENT);
63 if (!X509V3_add_value("Pragma", "no-cache", &headers))
65 if ((req_mem = ASN1_item_i2d_mem_bio(it, (const ASN1_VALUE *)req)) == NULL)
68 if (ctx->serverPort != 0)
69 BIO_snprintf(server_port, sizeof(server_port), "%d", ctx->serverPort);
70 tls_used = OSSL_CMP_CTX_get_http_cb_arg(ctx) != NULL;
71 if (ctx->http_ctx == NULL)
72 ossl_cmp_log3(DEBUG, ctx, "connecting to CMP server %s:%s%s",
73 ctx->server, server_port, tls_used ? " using TLS" : "");
75 rsp = OSSL_HTTP_transfer(&ctx->http_ctx, ctx->server, server_port,
76 ctx->serverPath, tls_used,
77 ctx->proxy, ctx->no_proxy,
78 NULL /* bio */, NULL /* rbio */,
79 ctx->http_cb, OSSL_CMP_CTX_get_http_cb_arg(ctx),
80 0 /* buf_size */, headers,
81 content_type_pkix, req_mem,
82 content_type_pkix, 1 /* expect_asn1 */,
83 OSSL_HTTP_DEFAULT_MAX_RESP_LEN,
85 keep_alive(ctx->keep_alive, req->body->type));
87 res = (OSSL_CMP_MSG *)ASN1_item_d2i_bio(it, rsp, NULL);
90 if (ctx->http_ctx == NULL)
91 ossl_cmp_debug(ctx, "disconnected from CMP server");
93 * Note that on normal successful end of the transaction the connection
94 * is not closed at this level, but this will be done by the CMP client
95 * application via OSSL_CMP_CTX_free() or OSSL_CMP_CTX_reinit().
98 ossl_cmp_debug(ctx, "finished reading response from CMP server");
100 sk_CONF_VALUE_pop_free(headers, X509V3_conf_free);