A local copy of OpenSSL from GitHub
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/*
* Copyright 2018-2020 The OpenSSL Project Authors. All Rights Reserved.
* Copyright Siemens AG 2018-2020
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or atf
* https://www.openssl.org/source/license.html
*/
#include "apps.h"
#include "cmp_mock_srv.h"
#include <openssl/cmp.h>
#include <openssl/err.h>
#include <openssl/cmperr.h>
/* the context for the CMP mock server */
typedef struct
{
X509 *certOut; /* certificate to be returned in cp/ip/kup msg */
STACK_OF(X509) *chainOut; /* chain of certOut to add to extraCerts field */
STACK_OF(X509) *caPubsOut; /* certs to return in caPubs field of ip msg */
OSSL_CMP_PKISI *statusOut; /* status for ip/cp/kup/rp msg unless polling */
int sendError; /* send error response also on valid requests */
OSSL_CMP_MSG *certReq; /* ir/cr/p10cr/kur remembered while polling */
int certReqId; /* id of last ir/cr/kur, used for polling */
int pollCount; /* number of polls before actual cert response */
int checkAfterTime; /* time the client should wait between polling */
} mock_srv_ctx;
static void mock_srv_ctx_free(mock_srv_ctx *ctx)
{
if (ctx == NULL)
return;
OSSL_CMP_PKISI_free(ctx->statusOut);
X509_free(ctx->certOut);
sk_X509_pop_free(ctx->chainOut, X509_free);
sk_X509_pop_free(ctx->caPubsOut, X509_free);
OSSL_CMP_MSG_free(ctx->certReq);
OPENSSL_free(ctx);
}
static mock_srv_ctx *mock_srv_ctx_new(void)
{
mock_srv_ctx *ctx = OPENSSL_zalloc(sizeof(mock_srv_ctx));
if (ctx == NULL)
goto err;
if ((ctx->statusOut = OSSL_CMP_PKISI_new()) == NULL)
goto err;
ctx->certReqId = -1;
/* all other elements are initialized to 0 or NULL, respectively */
return ctx;
err:
mock_srv_ctx_free(ctx);
return NULL;
}
int ossl_cmp_mock_srv_set1_certOut(OSSL_CMP_SRV_CTX *srv_ctx, X509 *cert)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (cert == NULL || X509_up_ref(cert)) {
X509_free(ctx->certOut);
ctx->certOut = cert;
return 1;
}
return 0;
}
int ossl_cmp_mock_srv_set1_chainOut(OSSL_CMP_SRV_CTX *srv_ctx,
STACK_OF(X509) *chain)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
STACK_OF(X509) *chain_copy = NULL;
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (chain != NULL && (chain_copy = X509_chain_up_ref(chain)) == NULL)
return 0;
sk_X509_pop_free(ctx->chainOut, X509_free);
ctx->chainOut = chain_copy;
return 1;
}
int ossl_cmp_mock_srv_set1_caPubsOut(OSSL_CMP_SRV_CTX *srv_ctx,
STACK_OF(X509) *caPubs)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
STACK_OF(X509) *caPubs_copy = NULL;
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (caPubs != NULL && (caPubs_copy = X509_chain_up_ref(caPubs)) == NULL)
return 0;
sk_X509_pop_free(ctx->caPubsOut, X509_free);
ctx->caPubsOut = caPubs_copy;
return 1;
}
int ossl_cmp_mock_srv_set_statusInfo(OSSL_CMP_SRV_CTX *srv_ctx, int status,
int fail_info, const char *text)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
OSSL_CMP_PKISI *si;
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if ((si = OSSL_CMP_STATUSINFO_new(status, fail_info, text)) == NULL)
return 0;
OSSL_CMP_PKISI_free(ctx->statusOut);
ctx->statusOut = si;
return 1;
}
int ossl_cmp_mock_srv_set_send_error(OSSL_CMP_SRV_CTX *srv_ctx, int val)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
ctx->sendError = val != 0;
return 1;
}
int ossl_cmp_mock_srv_set_pollCount(OSSL_CMP_SRV_CTX *srv_ctx, int count)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (count < 0) {
CMPerr(0, CMP_R_INVALID_ARGS);
return 0;
}
ctx->pollCount = count;
return 1;
}
int ossl_cmp_mock_srv_set_checkAfterTime(OSSL_CMP_SRV_CTX *srv_ctx, int sec)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
ctx->checkAfterTime = sec;
return 1;
}
static OSSL_CMP_PKISI *process_cert_request(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *cert_req,
int certReqId,
const OSSL_CRMF_MSG *crm,
const X509_REQ *p10cr,
X509 **certOut,
STACK_OF(X509) **chainOut,
STACK_OF(X509) **caPubs)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
OSSL_CMP_PKISI *si = NULL;
if (ctx == NULL || cert_req == NULL
|| certOut == NULL || chainOut == NULL || caPubs == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return NULL;
}
if (ctx->sendError) {
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return NULL;
}
*certOut = NULL;
*chainOut = NULL;
*caPubs = NULL;
ctx->certReqId = certReqId;
if (ctx->pollCount > 0) {
ctx->pollCount--;
OSSL_CMP_MSG_free(ctx->certReq);
if ((ctx->certReq = OSSL_CMP_MSG_dup(cert_req)) == NULL)
return NULL;
return OSSL_CMP_STATUSINFO_new(OSSL_CMP_PKISTATUS_waiting, 0, NULL);
}
if (ctx->certOut != NULL
&& (*certOut = X509_dup(ctx->certOut)) == NULL)
/* TODO better return a cert produced from data in request template */
goto err;
if (ctx->chainOut != NULL
&& (*chainOut = X509_chain_up_ref(ctx->chainOut)) == NULL)
goto err;
if (ctx->caPubsOut != NULL
&& (*caPubs = X509_chain_up_ref(ctx->caPubsOut)) == NULL)
goto err;
if (ctx->statusOut != NULL
&& (si = OSSL_CMP_PKISI_dup(ctx->statusOut)) == NULL)
goto err;
return si;
err:
X509_free(*certOut);
*certOut = NULL;
sk_X509_pop_free(*chainOut, X509_free);
*chainOut = NULL;
sk_X509_pop_free(*caPubs, X509_free);
*caPubs = NULL;
return NULL;
}
static OSSL_CMP_PKISI *process_rr(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *rr,
const X509_NAME *issuer,
const ASN1_INTEGER *serial)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL || rr == NULL || issuer == NULL || serial == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return NULL;
}
if (ctx->sendError || ctx->certOut == NULL) {
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return NULL;
}
/* accept revocation only for the certificate we sent in ir/cr/kur */
if (X509_NAME_cmp(issuer, X509_get_issuer_name(ctx->certOut)) != 0
|| ASN1_INTEGER_cmp(serial,
X509_get0_serialNumber(ctx->certOut)) != 0) {
CMPerr(0, CMP_R_REQUEST_NOT_ACCEPTED);
return NULL;
}
return OSSL_CMP_PKISI_dup(ctx->statusOut);
}
static int process_genm(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *genm,
const STACK_OF(OSSL_CMP_ITAV) *in,
STACK_OF(OSSL_CMP_ITAV) **out)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL || genm == NULL || in == NULL || out == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (ctx->sendError) {
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
*out = sk_OSSL_CMP_ITAV_deep_copy(in, OSSL_CMP_ITAV_dup,
OSSL_CMP_ITAV_free);
return *out != NULL;
}
static void process_error(OSSL_CMP_SRV_CTX *srv_ctx, const OSSL_CMP_MSG *error,
const OSSL_CMP_PKISI *statusInfo,
const ASN1_INTEGER *errorCode,
const OSSL_CMP_PKIFREETEXT *errorDetails)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
char buf[OSSL_CMP_PKISI_BUFLEN];
char *sibuf;
int i;
if (ctx == NULL || error == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return;
}
BIO_printf(bio_err, "mock server received error:\n");
if (statusInfo == NULL) {
BIO_printf(bio_err, "pkiStatusInfo absent\n");
} else {
sibuf = OSSL_CMP_snprint_PKIStatusInfo(statusInfo, buf, sizeof(buf));
BIO_printf(bio_err, "pkiStatusInfo: %s\n",
sibuf != NULL ? sibuf: "<invalid>");
}
if (errorCode == NULL)
BIO_printf(bio_err, "errorCode absent\n");
else
BIO_printf(bio_err, "errorCode: %ld\n", ASN1_INTEGER_get(errorCode));
if (sk_ASN1_UTF8STRING_num(errorDetails) <= 0) {
BIO_printf(bio_err, "errorDetails absent\n");
} else {
/* TODO could use sk_ASN1_UTF8STRING2text() if exported */
BIO_printf(bio_err, "errorDetails: ");
for (i = 0; i < sk_ASN1_UTF8STRING_num(errorDetails); i++) {
if (i > 0)
BIO_printf(bio_err, ", ");
BIO_printf(bio_err, "\"");
ASN1_STRING_print(bio_err,
sk_ASN1_UTF8STRING_value(errorDetails, i));
BIO_printf(bio_err, "\"");
}
BIO_printf(bio_err, "\n");
}
}
static int process_certConf(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *certConf, int certReqId,
const ASN1_OCTET_STRING *certHash,
const OSSL_CMP_PKISI *si)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
ASN1_OCTET_STRING *digest;
if (ctx == NULL || certConf == NULL || certHash == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (ctx->sendError || ctx->certOut == NULL) {
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
if (certReqId != ctx->certReqId) {
/* in case of error, invalid reqId -1 */
CMPerr(0, CMP_R_BAD_REQUEST_ID);
return 0;
}
if ((digest = X509_digest_sig(ctx->certOut)) == NULL)
return 0;
if (ASN1_OCTET_STRING_cmp(certHash, digest) != 0) {
ASN1_OCTET_STRING_free(digest);
CMPerr(0, CMP_R_CERTHASH_UNMATCHED);
return 0;
}
ASN1_OCTET_STRING_free(digest);
return 1;
}
static int process_pollReq(OSSL_CMP_SRV_CTX *srv_ctx,
const OSSL_CMP_MSG *pollReq, int certReqId,
OSSL_CMP_MSG **certReq, int64_t *check_after)
{
mock_srv_ctx *ctx = OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx);
if (ctx == NULL || pollReq == NULL
|| certReq == NULL || check_after == NULL) {
CMPerr(0, CMP_R_NULL_ARGUMENT);
return 0;
}
if (ctx->sendError || ctx->certReq == NULL) {
*certReq = NULL;
CMPerr(0, CMP_R_ERROR_PROCESSING_MESSAGE);
return 0;
}
if (ctx->pollCount == 0) {
*certReq = ctx->certReq;
ctx->certReq = NULL;
*check_after = 0;
} else {
ctx->pollCount--;
*certReq = NULL;
*check_after = ctx->checkAfterTime;
}
return 1;
}
OSSL_CMP_SRV_CTX *ossl_cmp_mock_srv_new(OPENSSL_CTX *libctx, const char *propq)
{
OSSL_CMP_SRV_CTX *srv_ctx = OSSL_CMP_SRV_CTX_new(libctx, propq);
mock_srv_ctx *ctx = mock_srv_ctx_new();
if (srv_ctx != NULL && ctx != NULL
&& OSSL_CMP_SRV_CTX_init(srv_ctx, ctx, process_cert_request,
process_rr, process_genm, process_error,
process_certConf, process_pollReq))
return srv_ctx;
mock_srv_ctx_free(ctx);
OSSL_CMP_SRV_CTX_free(srv_ctx);
return NULL;
}
void ossl_cmp_mock_srv_free(OSSL_CMP_SRV_CTX *srv_ctx)
{
if (srv_ctx != NULL)
mock_srv_ctx_free(OSSL_CMP_SRV_CTX_get0_custom_ctx(srv_ctx));
OSSL_CMP_SRV_CTX_free(srv_ctx);
}