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a474179cdfd42e61763c15724a2b3f03ea3ea239
wolfssl/src/x509_str.c
Sean Parkinson 8851065848 cppcheck fixes 
Fix checking of negative with unsigned variables.
Check digestSz for 0 in wc_SSH_KDF() so that no possibility of dividing
by zero.
Change XMEMCPY to XMEMSET in renesas_sce_util.c.
Fix test.c to free prvTmp and pubTmp on read error.
Remove unused variables.
XFREE checks for NULL so don't check before call.
Move variable declarations to reduce scope.
2023-04-03 16:59:58 +10:00

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38 KiB
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/* x509_str.c
*
* Copyright (C) 2006-2023 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
#if !defined(WOLFSSL_X509_STORE_INCLUDED)
#ifndef WOLFSSL_IGNORE_FILE_WARN
#warning x509_str.c does not need to be compiled separately from ssl.c
#endif
#else
#ifndef WOLFCRYPT_ONLY
#ifndef NO_CERTS
/*******************************************************************************
* START OF X509_STORE_CTX APIs
******************************************************************************/
#ifdef OPENSSL_EXTRA
WOLFSSL_X509_STORE_CTX* wolfSSL_X509_STORE_CTX_new(void)
{
WOLFSSL_X509_STORE_CTX* ctx;
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_new");
ctx = (WOLFSSL_X509_STORE_CTX*)XMALLOC(sizeof(WOLFSSL_X509_STORE_CTX), NULL,
DYNAMIC_TYPE_X509_CTX);
if (ctx != NULL) {
ctx->param = NULL;
wolfSSL_X509_STORE_CTX_init(ctx, NULL, NULL, NULL);
}
return ctx;
}
int wolfSSL_X509_STORE_CTX_init(WOLFSSL_X509_STORE_CTX* ctx,
WOLFSSL_X509_STORE* store, WOLFSSL_X509* x509, WOLF_STACK_OF(WOLFSSL_X509)* sk)
{
int ret = 0;
(void)sk;
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_init");
if (ctx != NULL) {
ctx->store = store;
#ifndef WOLFSSL_X509_STORE_CERTS
ctx->current_cert = x509;
#else
if(x509 != NULL){
ctx->current_cert = wolfSSL_X509_d2i(NULL, x509->derCert->buffer,
x509->derCert->length);
if(ctx->current_cert == NULL)
return WOLFSSL_FAILURE;
} else
ctx->current_cert = NULL;
#endif
ctx->chain = sk;
/* Add intermediate certificates from stack to store */
while (sk != NULL) {
WOLFSSL_X509* x509_cert = sk->data.x509;
if (x509_cert != NULL && x509_cert->isCa) {
ret = wolfSSL_X509_STORE_add_cert(store, x509_cert);
if (ret < 0) {
return WOLFSSL_FAILURE;
}
}
sk = sk->next;
}
ctx->sesChain = NULL;
ctx->domain = NULL;
#ifdef HAVE_EX_DATA
XMEMSET(&ctx->ex_data, 0, sizeof(ctx->ex_data));
#endif
ctx->userCtx = NULL;
ctx->error = 0;
ctx->error_depth = 0;
ctx->discardSessionCerts = 0;
if (ctx->param == NULL) {
ctx->param = (WOLFSSL_X509_VERIFY_PARAM*)XMALLOC(
sizeof(WOLFSSL_X509_VERIFY_PARAM),
NULL, DYNAMIC_TYPE_OPENSSL);
if (ctx->param == NULL){
WOLFSSL_MSG("wolfSSL_X509_STORE_CTX_init failed");
return WOLFSSL_FAILURE;
}
}
return WOLFSSL_SUCCESS;
}
return WOLFSSL_FAILURE;
}
/* free's extra data */
void wolfSSL_X509_STORE_CTX_free(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_free");
if (ctx != NULL) {
#ifdef HAVE_EX_DATA_CLEANUP_HOOKS
wolfSSL_CRYPTO_cleanup_ex_data(&ctx->ex_data);
#endif
if (ctx->param != NULL) {
XFREE(ctx->param, NULL, DYNAMIC_TYPE_OPENSSL);
ctx->param = NULL;
}
XFREE(ctx, NULL, DYNAMIC_TYPE_X509_CTX);
}
}
void wolfSSL_X509_STORE_CTX_cleanup(WOLFSSL_X509_STORE_CTX* ctx)
{
if (ctx != NULL) {
if (ctx->param != NULL) {
XFREE(ctx->param, NULL, DYNAMIC_TYPE_OPENSSL);
ctx->param = NULL;
}
wolfSSL_X509_STORE_CTX_init(ctx, NULL, NULL, NULL);
}
}
void wolfSSL_X509_STORE_CTX_trusted_stack(WOLFSSL_X509_STORE_CTX *ctx, WOLF_STACK_OF(WOLFSSL_X509) *sk)
{
if (ctx != NULL) {
ctx->chain = sk;
}
}
/* Returns corresponding X509 error from internal ASN error <e> */
int GetX509Error(int e)
{
switch (e) {
case ASN_BEFORE_DATE_E:
return WOLFSSL_X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
case ASN_AFTER_DATE_E:
return WOLFSSL_X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
case ASN_NO_SIGNER_E: /* get issuer error if no CA found locally */
return WOLFSSL_X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
case ASN_SELF_SIGNED_E:
return WOLFSSL_X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
case ASN_PATHLEN_INV_E:
case ASN_PATHLEN_SIZE_E:
return WOLFSSL_X509_V_ERR_PATH_LENGTH_EXCEEDED;
case ASN_SIG_OID_E:
case ASN_SIG_CONFIRM_E:
case ASN_SIG_HASH_E:
case ASN_SIG_KEY_E:
return WOLFSSL_X509_V_ERR_CERT_SIGNATURE_FAILURE;
default:
#ifdef HAVE_WOLFSSL_MSG_EX
WOLFSSL_MSG_EX("Error not configured or implemented yet: %d", e);
#else
WOLFSSL_MSG("Error not configured or implemented yet");
#endif
return e;
}
}
/* Verifies certificate chain using WOLFSSL_X509_STORE_CTX
* returns 0 on success or < 0 on failure.
*/
int wolfSSL_X509_verify_cert(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_verify_cert");
if (ctx != NULL && ctx->store != NULL && ctx->store->cm != NULL
&& ctx->current_cert != NULL && ctx->current_cert->derCert != NULL) {
int ret = 0;
int depth = 0;
int error;
#ifndef NO_ASN_TIME
byte *afterDate, *beforeDate;
#endif
ret = wolfSSL_CertManagerVerifyBuffer(ctx->store->cm,
ctx->current_cert->derCert->buffer,
ctx->current_cert->derCert->length,
WOLFSSL_FILETYPE_ASN1);
/* If there was an error, process it and add it to CTX */
if (ret < 0) {
/* Get corresponding X509 error */
error = GetX509Error(ret);
/* Set error depth */
if (ctx->chain)
depth = (int)ctx->chain->num;
wolfSSL_X509_STORE_CTX_set_error(ctx, error);
wolfSSL_X509_STORE_CTX_set_error_depth(ctx, depth);
#if defined(OPENSSL_ALL) || defined(WOLFSSL_QT)
if (ctx->store && ctx->store->verify_cb)
ctx->store->verify_cb(0, ctx);
#endif
}
#ifndef NO_ASN_TIME
error = 0;
/* wolfSSL_CertManagerVerifyBuffer only returns ASN_AFTER_DATE_E or
ASN_BEFORE_DATE_E if there are no additional errors found in the
cert. Therefore, check if the cert is expired or not yet valid
in order to return the correct expected error. */
afterDate = ctx->current_cert->notAfter.data;
beforeDate = ctx->current_cert->notBefore.data;
if (XVALIDATE_DATE(afterDate, (byte)ctx->current_cert->notAfter.type,
AFTER) < 1) {
error = WOLFSSL_X509_V_ERR_CERT_HAS_EXPIRED;
}
else if (XVALIDATE_DATE(beforeDate,
(byte)ctx->current_cert->notBefore.type, BEFORE) < 1) {
error = WOLFSSL_X509_V_ERR_CERT_NOT_YET_VALID;
}
if (error != 0 ) {
wolfSSL_X509_STORE_CTX_set_error(ctx, error);
wolfSSL_X509_STORE_CTX_set_error_depth(ctx, depth);
#if defined(OPENSSL_ALL) || defined(WOLFSSL_QT)
if (ctx->store && ctx->store->verify_cb)
ctx->store->verify_cb(0, ctx);
#endif
}
#endif
/* OpenSSL returns 0 when a chain can't be built */
if (ret == ASN_NO_SIGNER_E)
return WOLFSSL_FAILURE;
else
return ret;
}
return WOLFSSL_FATAL_ERROR;
}
#endif /* OPENSSL_EXTRA */
#if defined(OPENSSL_EXTRA) || defined(WOLFSSL_WPAS_SMALL)
WOLFSSL_X509* wolfSSL_X509_STORE_CTX_get_current_cert(
WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get_current_cert");
if (ctx)
return ctx->current_cert;
return NULL;
}
int wolfSSL_X509_STORE_CTX_get_error(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get_error");
if (ctx != NULL)
return ctx->error;
return 0;
}
int wolfSSL_X509_STORE_CTX_get_error_depth(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get_error_depth");
if(ctx)
return ctx->error_depth;
return WOLFSSL_FATAL_ERROR;
}
/* get X509_STORE_CTX ex_data, max idx is MAX_EX_DATA */
void* wolfSSL_X509_STORE_CTX_get_ex_data(WOLFSSL_X509_STORE_CTX* ctx, int idx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get_ex_data");
#ifdef HAVE_EX_DATA
if (ctx != NULL) {
return wolfSSL_CRYPTO_get_ex_data(&ctx->ex_data, idx);
}
#else
(void)ctx;
(void)idx;
#endif
return NULL;
}
#endif /* OPENSSL_EXTRA || WOLFSSL_WPAS_SMALL */
#ifdef OPENSSL_EXTRA
void wolfSSL_X509_STORE_CTX_set_verify_cb(WOLFSSL_X509_STORE_CTX *ctx,
WOLFSSL_X509_STORE_CTX_verify_cb verify_cb)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_verify_cb");
if(ctx == NULL)
return;
ctx->verify_cb = verify_cb;
}
/* Gets pointer to X509_STORE that was used to create context.
*
* Return valid pointer on success, NULL if ctx was NULL or not initialized
*/
WOLFSSL_X509_STORE* wolfSSL_X509_STORE_CTX_get0_store(
WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get0_store");
if (ctx == NULL)
return NULL;
return ctx->store;
}
WOLFSSL_X509* wolfSSL_X509_STORE_CTX_get0_cert(WOLFSSL_X509_STORE_CTX* ctx)
{
if (ctx == NULL)
return NULL;
return ctx->current_cert;
}
void wolfSSL_X509_STORE_CTX_set_time(WOLFSSL_X509_STORE_CTX* ctx,
unsigned long flags,
time_t t)
{
(void)flags;
if (ctx == NULL || ctx->param == NULL)
return;
ctx->param->check_time = t;
ctx->param->flags |= WOLFSSL_USE_CHECK_TIME;
}
#if defined(WOLFSSL_QT) || defined(OPENSSL_ALL)
#ifndef NO_WOLFSSL_STUB
int wolfSSL_X509_STORE_CTX_set_purpose(WOLFSSL_X509_STORE_CTX *ctx,
int purpose)
{
(void)ctx;
(void)purpose;
WOLFSSL_STUB("wolfSSL_X509_STORE_CTX_set_purpose (not implemented)");
return 0;
}
void wolfSSL_X509_STORE_CTX_set_flags(WOLFSSL_X509_STORE_CTX *ctx,
unsigned long flags)
{
(void)ctx;
(void)flags;
WOLFSSL_STUB("wolfSSL_X509_STORE_CTX_set_flags (not implemented)");
}
#endif /* !NO_WOLFSSL_STUB */
#endif /* WOLFSSL_QT || OPENSSL_ALL */
#endif /* OPENSSL_EXTRA */
#ifdef OPENSSL_EXTRA
/* set X509_STORE_CTX ex_data, max idx is MAX_EX_DATA. Return WOLFSSL_SUCCESS
* on success, WOLFSSL_FAILURE on error. */
int wolfSSL_X509_STORE_CTX_set_ex_data(WOLFSSL_X509_STORE_CTX* ctx, int idx,
void *data)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_ex_data");
#ifdef HAVE_EX_DATA
if (ctx != NULL)
{
return wolfSSL_CRYPTO_set_ex_data(&ctx->ex_data, idx, data);
}
#else
(void)ctx;
(void)idx;
(void)data;
#endif
return WOLFSSL_FAILURE;
}
#ifdef HAVE_EX_DATA_CLEANUP_HOOKS
/* set X509_STORE_CTX ex_data, max idx is MAX_EX_DATA. Return WOLFSSL_SUCCESS
* on success, WOLFSSL_FAILURE on error. */
int wolfSSL_X509_STORE_CTX_set_ex_data_with_cleanup(
WOLFSSL_X509_STORE_CTX* ctx,
int idx,
void *data,
wolfSSL_ex_data_cleanup_routine_t cleanup_routine)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_ex_data_with_cleanup");
if (ctx != NULL)
{
return wolfSSL_CRYPTO_set_ex_data_with_cleanup(&ctx->ex_data, idx, data,
cleanup_routine);
}
return WOLFSSL_FAILURE;
}
#endif /* HAVE_EX_DATA_CLEANUP_HOOKS */
#if defined(WOLFSSL_APACHE_HTTPD) || defined(OPENSSL_ALL)
void wolfSSL_X509_STORE_CTX_set_depth(WOLFSSL_X509_STORE_CTX* ctx, int depth)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_depth");
if (ctx)
ctx->depth = depth;
}
#endif
WOLFSSL_X509* wolfSSL_X509_STORE_CTX_get0_current_issuer(
WOLFSSL_X509_STORE_CTX* ctx)
{
int ret;
WOLFSSL_X509* issuer;
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get0_current_issuer");
if (ctx == NULL) {
return NULL;
}
ret = wolfSSL_X509_STORE_CTX_get1_issuer(&issuer, ctx, ctx->current_cert);
if (ret == WOLFSSL_SUCCESS) {
return issuer;
}
return NULL;
}
/* Set an error stat in the X509 STORE CTX
*
*/
void wolfSSL_X509_STORE_CTX_set_error(WOLFSSL_X509_STORE_CTX* ctx, int er)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_error");
if (ctx != NULL) {
ctx->error = er;
}
}
/* Set the error depth in the X509 STORE CTX */
void wolfSSL_X509_STORE_CTX_set_error_depth(WOLFSSL_X509_STORE_CTX* ctx,
int depth)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_set_error_depth");
if (ctx != NULL) {
ctx->error_depth = depth;
}
}
WOLFSSL_STACK* wolfSSL_X509_STORE_CTX_get_chain(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_CTX_get_chain");
if (ctx == NULL) {
return NULL;
}
#ifdef SESSION_CERTS
/* if chain is null but sesChain is available then populate stack */
if (ctx->chain == NULL && ctx->sesChain != NULL) {
int i;
WOLFSSL_X509_CHAIN* c = ctx->sesChain;
WOLFSSL_STACK* sk = (WOLFSSL_STACK*)XMALLOC(sizeof(WOLFSSL_STACK),
NULL, DYNAMIC_TYPE_X509);
if (sk == NULL) {
return NULL;
}
XMEMSET(sk, 0, sizeof(WOLFSSL_STACK));
for (i = 0; i < c->count && i < MAX_CHAIN_DEPTH; i++) {
WOLFSSL_X509* x509 = wolfSSL_get_chain_X509(c, i);
if (x509 == NULL) {
WOLFSSL_MSG("Unable to get x509 from chain");
wolfSSL_sk_X509_pop_free(sk, NULL);
return NULL;
}
if (wolfSSL_sk_X509_push(sk, x509) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("Unable to load x509 into stack");
wolfSSL_sk_X509_pop_free(sk, NULL);
wolfSSL_X509_free(x509);
return NULL;
}
}
#if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) || defined(OPENSSL_EXTRA)
/* add CA used to verify top of chain to the list */
if (c->count > 0) {
WOLFSSL_X509* x509 = wolfSSL_get_chain_X509(c, c->count - 1);
if (x509 != NULL) {
WOLFSSL_X509* issuer = NULL;
if (wolfSSL_X509_STORE_CTX_get1_issuer(&issuer, ctx, x509)
== WOLFSSL_SUCCESS) {
/* check that the certificate being looked up is not self
* signed and that a issuer was found */
if (issuer != NULL && wolfSSL_X509_NAME_cmp(&x509->issuer,
&x509->subject) != 0) {
if (wolfSSL_sk_X509_push(sk, issuer) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("Unable to load CA x509 into stack");
wolfSSL_sk_X509_pop_free(sk, NULL);
wolfSSL_X509_free(issuer);
return NULL;
}
}
else {
WOLFSSL_MSG("Certificate is self signed");
if (issuer != NULL)
wolfSSL_X509_free(issuer);
}
}
else {
WOLFSSL_MSG("Could not find CA for certificate");
}
}
}
#endif
ctx->chain = sk;
}
#endif /* SESSION_CERTS */
return ctx->chain;
}
/* like X509_STORE_CTX_get_chain(), but return a copy with data reference
counts increased */
WOLFSSL_STACK* wolfSSL_X509_STORE_CTX_get1_chain(WOLFSSL_X509_STORE_CTX* ctx)
{
WOLFSSL_STACK* ref;
if (ctx == NULL) {
return NULL;
}
/* get chain in ctx */
ref = wolfSSL_X509_STORE_CTX_get_chain(ctx);
if (ref == NULL) {
return ref;
}
/* create duplicate of ctx chain */
return wolfSSL_sk_dup(ref);
}
#ifndef NO_WOLFSSL_STUB
WOLFSSL_X509_STORE_CTX *wolfSSL_X509_STORE_CTX_get0_parent_ctx(
WOLFSSL_X509_STORE_CTX *ctx)
{
(void)ctx;
WOLFSSL_STUB("wolfSSL_X509_STORE_CTX_get0_parent_ctx");
return NULL;
}
int wolfSSL_X509_STORE_get_by_subject(WOLFSSL_X509_STORE_CTX* ctx, int idx,
WOLFSSL_X509_NAME* name, WOLFSSL_X509_OBJECT* obj)
{
(void)ctx;
(void)idx;
(void)name;
(void)obj;
WOLFSSL_STUB("X509_STORE_get_by_subject");
return 0;
}
#endif
#endif /* OPENSSL_EXTRA */
#if defined(OPENSSL_EXTRA) && !defined(NO_FILESYSTEM)
#if defined(WOLFSSL_SIGNER_DER_CERT)
WOLF_STACK_OF(WOLFSSL_X509)* wolfSSL_X509_STORE_get1_certs(
WOLFSSL_X509_STORE_CTX* ctx, WOLFSSL_X509_NAME* name)
{
WOLF_STACK_OF(WOLFSSL_X509)* ret = NULL;
int err = 0;
WOLFSSL_X509_STORE* store = NULL;
WOLFSSL_STACK* sk = NULL;
WOLFSSL_STACK* certToFilter = NULL;
WOLFSSL_X509_NAME* certToFilterName = NULL;
WOLF_STACK_OF(WOLFSSL_X509)* filteredCerts = NULL;
WOLFSSL_X509* filteredCert = NULL;
WOLFSSL_ENTER("wolfSSL_X509_STORE_get1_certs");
if (name == NULL) {
err = 1;
}
if (err == 0) {
store = wolfSSL_X509_STORE_CTX_get0_store(ctx);
if (store == NULL) {
err = 1;
}
}
if (err == 0) {
filteredCerts = wolfSSL_sk_X509_new_null();
if (filteredCerts == NULL) {
err = 1;
}
}
if (err == 0) {
sk = wolfSSL_CertManagerGetCerts(store->cm);
if (sk == NULL) {
err = 1;
}
}
if (err == 0) {
certToFilter = sk;
while (certToFilter != NULL) {
certToFilterName = wolfSSL_X509_get_subject_name(
certToFilter->data.x509);
if (certToFilterName != NULL) {
if (wolfSSL_X509_NAME_cmp(certToFilterName, name) == 0) {
filteredCert = wolfSSL_X509_dup(certToFilter->data.x509);
if (filteredCert == NULL) {
err = 1;
break;
}
else {
wolfSSL_sk_X509_push(filteredCerts, filteredCert);
}
}
}
certToFilter = certToFilter->next;
}
}
if (err == 1) {
if (filteredCerts != NULL) {
wolfSSL_sk_X509_pop_free(filteredCerts, NULL);
}
ret = NULL;
}
else {
ret = filteredCerts;
}
if (sk != NULL) {
wolfSSL_sk_X509_pop_free(sk, NULL);
}
return ret;
}
#endif /* WOLFSSL_SIGNER_DER_CERT */
#endif /* OPENSSL_EXTRA && !NO_FILESYSTEM */
#if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY) || \
defined(OPENSSL_EXTRA) || defined(OPENSSL_ALL)
int wolfSSL_X509_STORE_CTX_get1_issuer(WOLFSSL_X509 **issuer,
WOLFSSL_X509_STORE_CTX *ctx, WOLFSSL_X509 *x)
{
WOLFSSL_STACK* node;
if (issuer == NULL || ctx == NULL || x == NULL)
return WOLFSSL_FATAL_ERROR;
if (ctx->chain != NULL) {
for (node = ctx->chain; node != NULL; node = node->next) {
if (wolfSSL_X509_check_issued(node->data.x509, x) ==
WOLFSSL_X509_V_OK) {
*issuer = x;
return WOLFSSL_SUCCESS;
}
}
}
/* Result is ignored when passed to wolfSSL_OCSP_cert_to_id(). */
return x509GetIssuerFromCM(issuer, ctx->store->cm, x);
}
#endif /* WOLFSSL_NGINX || WOLFSSL_HAPROXY || OPENSSL_EXTRA || OPENSSL_ALL */
/*******************************************************************************
* END OF X509_STORE_CTX APIs
******************************************************************************/
/*******************************************************************************
* START OF X509_STORE APIs
******************************************************************************/
#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER) || \
defined(WOLFSSL_WPAS_SMALL)
WOLFSSL_X509_STORE* wolfSSL_X509_STORE_new(void)
{
int ret;
WOLFSSL_X509_STORE* store = NULL;
WOLFSSL_ENTER("wolfSSL_X509_STORE_new");
if ((store = (WOLFSSL_X509_STORE*)XMALLOC(sizeof(WOLFSSL_X509_STORE), NULL,
DYNAMIC_TYPE_X509_STORE)) == NULL)
goto err_exit;
XMEMSET(store, 0, sizeof(WOLFSSL_X509_STORE));
store->isDynamic = 1;
wolfSSL_RefInit(&store->ref, &ret);
#ifdef WOLFSSL_REFCNT_ERROR_RETURN
if (ret != 0)
goto err_exit;
#else
(void)ret;
#endif
if ((store->cm = wolfSSL_CertManagerNew()) == NULL)
goto err_exit;
#ifdef HAVE_CRL
store->crl = store->cm->crl;
#endif
#if defined(OPENSSL_EXTRA) || defined(WOLFSSL_WPAS_SMALL)
/* Link store's new Certificate Manager to self by default */
store->cm->x509_store_p = store;
if ((store->param = (WOLFSSL_X509_VERIFY_PARAM*)XMALLOC(
sizeof(WOLFSSL_X509_VERIFY_PARAM),
NULL, DYNAMIC_TYPE_OPENSSL)) == NULL) {
goto err_exit;
}
XMEMSET(store->param, 0, sizeof(WOLFSSL_X509_VERIFY_PARAM));
if ((store->lookup.dirs = (WOLFSSL_BY_DIR*)XMALLOC(sizeof(WOLFSSL_BY_DIR),
NULL, DYNAMIC_TYPE_OPENSSL)) == NULL) {
WOLFSSL_MSG("store->lookup.dir memory allocation error");
goto err_exit;
}
XMEMSET(store->lookup.dirs, 0, sizeof(WOLFSSL_BY_DIR));
if (wc_InitMutex(&store->lookup.dirs->lock) != 0) {
WOLFSSL_MSG("Bad mutex init");
goto err_exit;
}
#endif
return store;
err_exit:
if (store == NULL)
return NULL;
wolfSSL_X509_STORE_free(store);
return NULL;
}
void wolfSSL_X509_STORE_free(WOLFSSL_X509_STORE* store)
{
int doFree = 0;
if (store != NULL && store->isDynamic) {
int ret;
wolfSSL_RefDec(&store->ref, &doFree, &ret);
#ifdef WOLFSSL_REFCNT_ERROR_RETURN
if (ret != 0) {
WOLFSSL_MSG("Couldn't lock store mutex");
}
#else
(void)ret;
#endif
if (doFree) {
#ifdef HAVE_EX_DATA_CLEANUP_HOOKS
wolfSSL_CRYPTO_cleanup_ex_data(&store->ex_data);
#endif
if (store->cm != NULL) {
wolfSSL_CertManagerFree(store->cm);
store->cm = NULL;
}
#ifdef OPENSSL_ALL
if (store->objs != NULL) {
wolfSSL_sk_X509_OBJECT_pop_free(store->objs, NULL);
}
#endif
#if defined(OPENSSL_EXTRA) || defined(WOLFSSL_WPAS_SMALL)
if (store->param != NULL) {
XFREE(store->param, NULL, DYNAMIC_TYPE_OPENSSL);
store->param = NULL;
}
if (store->lookup.dirs != NULL) {
#if defined(OPENSSL_ALL) && !defined(NO_FILESYSTEM) && !defined(NO_WOLFSSL_DIR)
if (store->lookup.dirs->dir_entry) {
wolfSSL_sk_BY_DIR_entry_free(store->lookup.dirs->dir_entry);
}
#endif
wc_FreeMutex(&store->lookup.dirs->lock);
XFREE(store->lookup.dirs, NULL, DYNAMIC_TYPE_OPENSSL);
store->lookup.dirs = NULL;
}
#endif
XFREE(store, NULL, DYNAMIC_TYPE_X509_STORE);
}
}
}
/**
* Get ex_data in WOLFSSL_STORE at given index
* @param store a pointer to WOLFSSL_X509_STORE structure
* @param idx Index of ex_data to get data from
* @return void pointer to ex_data on success or NULL on failure
*/
void* wolfSSL_X509_STORE_get_ex_data(WOLFSSL_X509_STORE* store, int idx)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_get_ex_data");
#ifdef HAVE_EX_DATA
if (store != NULL && idx < MAX_EX_DATA && idx >= 0) {
return wolfSSL_CRYPTO_get_ex_data(&store->ex_data, idx);
}
#else
(void)store;
(void)idx;
#endif
return NULL;
}
int wolfSSL_X509_STORE_up_ref(WOLFSSL_X509_STORE* store)
{
if (store) {
int ret;
wolfSSL_RefInc(&store->ref, &ret);
#ifdef WOLFSSL_REFCNT_ERROR_RETURN
if (ret != 0) {
WOLFSSL_MSG("Failed to lock store mutex");
return WOLFSSL_FAILURE;
}
#else
(void)ret;
#endif
return WOLFSSL_SUCCESS;
}
return WOLFSSL_FAILURE;
}
/**
* Set ex_data for WOLFSSL_STORE
* @param store a pointer to WOLFSSL_X509_STORE structure
* @param idx Index of ex data to set
* @param data Data to set in ex data
* @return WOLFSSL_SUCCESS on success or WOLFSSL_FAILURE on failure
*/
int wolfSSL_X509_STORE_set_ex_data(WOLFSSL_X509_STORE* store, int idx,
void *data)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_set_ex_data");
#ifdef HAVE_EX_DATA
if (store != NULL && idx < MAX_EX_DATA) {
return wolfSSL_CRYPTO_set_ex_data(&store->ex_data, idx, data);
}
#else
(void)store;
(void)idx;
(void)data;
#endif
return WOLFSSL_FAILURE;
}
#ifdef HAVE_EX_DATA_CLEANUP_HOOKS
/**
* Set ex_data for WOLFSSL_STORE
* @param store a pointer to WOLFSSL_X509_STORE structure
* @param idx Index of ex data to set
* @param data Data to set in ex data
* @return WOLFSSL_SUCCESS on success or WOLFSSL_FAILURE on failure
*/
int wolfSSL_X509_STORE_set_ex_data_with_cleanup(
WOLFSSL_X509_STORE* store,
int idx,
void *data,
wolfSSL_ex_data_cleanup_routine_t cleanup_routine)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_set_ex_data_with_cleanup");
if (store != NULL && idx < MAX_EX_DATA) {
return wolfSSL_CRYPTO_set_ex_data_with_cleanup(&store->ex_data, idx,
data, cleanup_routine);
}
return WOLFSSL_FAILURE;
}
#endif /* HAVE_EX_DATA_CLEANUP_HOOKS */
#endif /* OPENSSL_EXTRA || HAVE_WEBSERVER || WOLFSSL_WPAS_SMALL */
#ifdef OPENSSL_EXTRA
#if defined(WOLFSSL_QT) || defined(OPENSSL_ALL)
void wolfSSL_X509_STORE_set_verify_cb(WOLFSSL_X509_STORE *st,
WOLFSSL_X509_STORE_CTX_verify_cb verify_cb)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_set_verify_cb");
if (st != NULL) {
st->verify_cb = verify_cb;
}
}
#endif /* WOLFSSL_QT || OPENSSL_ALL */
WOLFSSL_X509_LOOKUP* wolfSSL_X509_STORE_add_lookup(WOLFSSL_X509_STORE* store,
WOLFSSL_X509_LOOKUP_METHOD* m)
{
WOLFSSL_ENTER("wolfSSL_X509_STORE_add_lookup");
if (store == NULL || m == NULL)
return NULL;
/* Make sure the lookup has a back reference to the store. */
store->lookup.store = store;
/* store a type to know which method wants to be used for */
store->lookup.type = m->type;
return &store->lookup;
}
int wolfSSL_X509_STORE_add_cert(WOLFSSL_X509_STORE* store, WOLFSSL_X509* x509)
{
int result = WOLFSSL_FATAL_ERROR;
WOLFSSL_ENTER("wolfSSL_X509_STORE_add_cert");
if (store != NULL && store->cm != NULL && x509 != NULL
&& x509->derCert != NULL) {
DerBuffer* derCert = NULL;
result = AllocDer(&derCert, x509->derCert->length,
x509->derCert->type, NULL);
if (result == 0) {
/* AddCA() frees the buffer. */
XMEMCPY(derCert->buffer,
x509->derCert->buffer, x509->derCert->length);
result = AddCA(store->cm, &derCert, WOLFSSL_USER_CA, VERIFY);
}
}
WOLFSSL_LEAVE("wolfSSL_X509_STORE_add_cert", result);
if (result != WOLFSSL_SUCCESS) {
result = WOLFSSL_FATAL_ERROR;
}
return result;
}
int wolfSSL_X509_STORE_set_flags(WOLFSSL_X509_STORE* store, unsigned long flag)
{
int ret = WOLFSSL_SUCCESS;
WOLFSSL_ENTER("wolfSSL_X509_STORE_set_flags");
if (store == NULL)
return WOLFSSL_FAILURE;
if ((flag & WOLFSSL_CRL_CHECKALL) || (flag & WOLFSSL_CRL_CHECK)) {
ret = wolfSSL_CertManagerEnableCRL(store->cm, (int)flag);
}
return ret;
}
int wolfSSL_X509_STORE_set_default_paths(WOLFSSL_X509_STORE* store)
{
(void)store;
return WOLFSSL_SUCCESS;
}
#if !defined(NO_FILESYSTEM) && !defined(NO_WOLFSSL_DIR)
/* Loads certificate(s) files in pem format into X509_STORE struct from either
* a file or directory.
* Returns WOLFSSL_SUCCESS on success or WOLFSSL_FAILURE if an error occurs.
*/
WOLFSSL_API int wolfSSL_X509_STORE_load_locations(WOLFSSL_X509_STORE *str,
const char *file, const char *dir)
{
WOLFSSL_CTX* ctx;
char *name = NULL;
int ret = WOLFSSL_SUCCESS;
#ifdef WOLFSSL_SMALL_STACK
ReadDirCtx* readCtx = NULL;
#else
ReadDirCtx readCtx[1];
#endif
WOLFSSL_ENTER("wolfSSL_X509_STORE_load_locations");
if (str == NULL || str->cm == NULL || (file == NULL && dir == NULL))
return WOLFSSL_FAILURE;
/* tmp ctx for setting our cert manager */
ctx = wolfSSL_CTX_new(cm_pick_method());
if (ctx == NULL)
return WOLFSSL_FAILURE;
wolfSSL_CertManagerFree(ctx->cm);
ctx->cm = str->cm;
#ifdef HAVE_CRL
if (str->cm->crl == NULL) {
if (wolfSSL_CertManagerEnableCRL(str->cm, 0) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("Enable CRL failed");
wolfSSL_CTX_free(ctx);
return WOLFSSL_FAILURE;
}
}
#endif
/* Load individual file */
if (file) {
/* Try to process file with type DETECT_CERT_TYPE to parse the
correct certificate header and footer type */
ret = ProcessFile(ctx, file, WOLFSSL_FILETYPE_PEM, DETECT_CERT_TYPE,
NULL, 0, str->cm->crl, 0);
if (ret != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("Failed to load file");
ret = WOLFSSL_FAILURE;
}
}
/* Load files in dir */
if (dir && ret == WOLFSSL_SUCCESS) {
int successes = 0;
#ifdef WOLFSSL_SMALL_STACK
readCtx = (ReadDirCtx*)XMALLOC(sizeof(ReadDirCtx), ctx->heap,
DYNAMIC_TYPE_TMP_BUFFER);
if (readCtx == NULL) {
WOLFSSL_MSG("Memory error");
wolfSSL_CTX_free(ctx);
return WOLFSSL_FAILURE;
}
#endif
/* try to load each regular file in dir */
ret = wc_ReadDirFirst(readCtx, dir, &name);
while (ret == 0 && name) {
WOLFSSL_MSG(name);
/* Try to process file with type DETECT_CERT_TYPE to parse the
correct certificate header and footer type */
ret = ProcessFile(ctx, name, WOLFSSL_FILETYPE_PEM, DETECT_CERT_TYPE,
NULL, 0, str->cm->crl, 0);
/* Not failing on load errors */
if (ret != WOLFSSL_SUCCESS)
WOLFSSL_MSG("Failed to load file in path, continuing");
else
successes++;
ret = wc_ReadDirNext(readCtx, dir, &name);
}
wc_ReadDirClose(readCtx);
/* Success if at least one file in dir was loaded */
if (successes > 0)
ret = WOLFSSL_SUCCESS;
else {
WOLFSSL_ERROR(ret);
ret = WOLFSSL_FAILURE;
}
#ifdef WOLFSSL_SMALL_STACK
XFREE(readCtx, ctx->heap, DYNAMIC_TYPE_TMP_BUFFER);
#endif
}
ctx->cm = NULL;
wolfSSL_CTX_free(ctx);
return ret;
}
#endif /* !NO_FILESYSTEM && !NO_WOLFSSL_DIR */
int wolfSSL_X509_CA_num(WOLFSSL_X509_STORE* store)
{
int cnt_ret = 0;
Signer **table;
WOLFSSL_ENTER("wolfSSL_X509_CA_num");
if (store == NULL || store->cm == NULL){
WOLFSSL_MSG("invalid parameter");
return WOLFSSL_FAILURE;
}
table = store->cm->caTable;
if (table){
if (wc_LockMutex(&store->cm->caLock) == 0){
int i = 0;
for (i = 0; i < CA_TABLE_SIZE; i++) {
Signer* signer = table[i];
while (signer) {
Signer* next = signer->next;
cnt_ret++;
signer = next;
}
}
wc_UnLockMutex(&store->cm->caLock);
}
}
return cnt_ret;
}
/******************************************************************************
* wolfSSL_X509_STORE_GetCerts - retrieve stack of X509 in a certificate store ctx
*
* This API can be used in SSL verify callback function to view cert chain
* See examples/client/client.c and myVerify() function in test.h
*
* RETURNS:
* returns stack of X509 certs on success, otherwise returns a NULL.
*/
WOLFSSL_STACK* wolfSSL_X509_STORE_GetCerts(WOLFSSL_X509_STORE_CTX* s)
{
int certIdx = 0;
WOLFSSL_BUFFER_INFO* cert = NULL;
DecodedCert* dCert = NULL;
WOLFSSL_X509* x509 = NULL;
WOLFSSL_STACK* sk = NULL;
int found = 0;
if (s == NULL) {
return NULL;
}
sk = wolfSSL_sk_X509_new_null();
if (sk == NULL) {
return NULL;
}
for (certIdx = s->totalCerts - 1; certIdx >= 0; certIdx--) {
/* get certificate buffer */
cert = &s->certs[certIdx];
dCert = (DecodedCert*)XMALLOC(sizeof(DecodedCert), NULL, DYNAMIC_TYPE_DCERT);
if (dCert == NULL) {
goto error;
}
XMEMSET(dCert, 0, sizeof(DecodedCert));
InitDecodedCert(dCert, cert->buffer, cert->length, NULL);
/* Parse Certificate */
if (ParseCert(dCert, CERT_TYPE, NO_VERIFY, NULL)){
goto error;
}
x509 = wolfSSL_X509_new();
if (x509 == NULL) {
goto error;
}
InitX509(x509, 1, NULL);
if (CopyDecodedToX509(x509, dCert) == 0) {
if (wolfSSL_sk_X509_push(sk, x509) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("Unable to load x509 into stack");
wolfSSL_X509_free(x509);
goto error;
}
}
else {
goto error;
}
found = 1;
FreeDecodedCert(dCert);
XFREE(dCert, NULL, DYNAMIC_TYPE_DCERT);
dCert = NULL;
}
if (!found) {
wolfSSL_sk_X509_pop_free(sk, NULL);
sk = NULL;
}
return sk;
error:
if (dCert) {
FreeDecodedCert(dCert);
XFREE(dCert, NULL, DYNAMIC_TYPE_DCERT);
}
if (sk)
wolfSSL_sk_X509_pop_free(sk, NULL);
return NULL;
}
#endif /* OPENSSL_EXTRA */
#ifdef OPENSSL_ALL
WOLF_STACK_OF(WOLFSSL_X509_OBJECT)* wolfSSL_X509_STORE_get0_objects(
WOLFSSL_X509_STORE* store)
{
WOLFSSL_STACK* ret = NULL;
WOLFSSL_STACK* cert_stack = NULL;
WOLFSSL_X509* x509 = NULL;
WOLFSSL_ENTER("wolfSSL_X509_STORE_get0_objects");
if (store == NULL || store->cm == NULL) {
WOLFSSL_MSG("Missing or empty store");
return NULL;
}
if (store->objs != NULL) {
#if defined(WOLFSSL_SIGNER_DER_CERT) && !defined(NO_FILESYSTEM)
/* want to update objs stack by cm stack again before returning it*/
wolfSSL_sk_X509_OBJECT_pop_free(store->objs, NULL);
store->objs = NULL;
#else
if (wolfSSL_sk_X509_OBJECT_num(store->objs) == 0) {
/* Let's try generating the stack again */
wolfSSL_sk_X509_OBJECT_pop_free(store->objs, NULL);
store->objs = NULL;
}
else
return store->objs;
#endif
}
if ((ret = wolfSSL_sk_X509_OBJECT_new()) == NULL) {
WOLFSSL_MSG("wolfSSL_sk_X509_OBJECT_new error");
goto err_cleanup;
}
#if defined(WOLFSSL_SIGNER_DER_CERT) && !defined(NO_FILESYSTEM)
cert_stack = wolfSSL_CertManagerGetCerts(store->cm);
/* wolfSSL_sk_X509_pop checks for NULL */
while ((x509 = wolfSSL_sk_X509_pop(cert_stack)) != NULL) {
WOLFSSL_X509_OBJECT* obj = wolfSSL_X509_OBJECT_new();
if (obj == NULL) {
WOLFSSL_MSG("wolfSSL_X509_OBJECT_new error");
goto err_cleanup;
}
if (wolfSSL_sk_X509_OBJECT_push(ret, obj) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("wolfSSL_sk_X509_OBJECT_push error");
wolfSSL_X509_OBJECT_free(obj);
goto err_cleanup;
}
obj->type = WOLFSSL_X509_LU_X509;
obj->data.x509 = x509;
}
#endif
#ifdef HAVE_CRL
if (store->cm->crl != NULL) {
WOLFSSL_X509_OBJECT* obj = wolfSSL_X509_OBJECT_new();
if (obj == NULL) {
WOLFSSL_MSG("wolfSSL_X509_OBJECT_new error");
goto err_cleanup;
}
if (wolfSSL_sk_X509_OBJECT_push(ret, obj) != WOLFSSL_SUCCESS) {
WOLFSSL_MSG("wolfSSL_sk_X509_OBJECT_push error");
wolfSSL_X509_OBJECT_free(obj);
goto err_cleanup;
}
obj->type = WOLFSSL_X509_LU_CRL;
obj->data.crl = store->cm->crl;
}
#endif
if (cert_stack)
wolfSSL_sk_X509_pop_free(cert_stack, NULL);
store->objs = ret;
return ret;
err_cleanup:
if (ret)
wolfSSL_sk_X509_OBJECT_free(ret);
if (cert_stack)
wolfSSL_sk_X509_pop_free(cert_stack, NULL);
if (x509)
wolfSSL_X509_free(x509);
return NULL;
}
#endif /* OPENSSL_ALL */
/*******************************************************************************
* END OF X509_STORE APIs
******************************************************************************/
#endif /* NO_CERTS */
#endif /* !WOLFCRYPT_ONLY */
#endif /* !WOLFSSL_X509_STORE_INCLUDED */
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