Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/x509/x509_lu.c	Lines:	118	342	34.5 %
Date:	2016-12-06	Branches:	31	172	18.0 %


/* $OpenBSD: x509_lu.c,v 1.20 2015/04/25 16:02:55 doug Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>

#include <openssl/err.h>
#include <openssl/lhash.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "x509_lcl.h"

X509_LOOKUP *
X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
{
	X509_LOOKUP *ret;

	ret = malloc(sizeof(X509_LOOKUP));
	if (ret == NULL)
		return NULL;

	ret->init = 0;
	ret->skip = 0;
	ret->method = method;
	ret->method_data = NULL;
	ret->store_ctx = NULL;
	if ((method->new_item != NULL) && !method->new_item(ret)) {
		free(ret);
		return NULL;
	}
	return ret;
}

void
X509_LOOKUP_free(X509_LOOKUP *ctx)
{
	if (ctx == NULL)
		return;
	if ((ctx->method != NULL) && (ctx->method->free != NULL))
		(*ctx->method->free)(ctx);
	free(ctx);
}

int
X509_LOOKUP_init(X509_LOOKUP *ctx)
{
	if (ctx->method == NULL)
		return 0;
	if (ctx->method->init != NULL)
		return ctx->method->init(ctx);
	else
		return 1;
}

int
X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
{
	if (ctx->method == NULL)
		return 0;
	if (ctx->method->shutdown != NULL)
		return ctx->method->shutdown(ctx);
	else
		return 1;
}

int
X509_LOOKUP_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc, long argl,
    char **ret)
{
	if (ctx->method == NULL)
		return -1;
	if (ctx->method->ctrl != NULL)
		return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
	else
		return 1;
}

int
X509_LOOKUP_by_subject(X509_LOOKUP *ctx, int type, X509_NAME *name,
    X509_OBJECT *ret)
{
	if ((ctx->method == NULL) || (ctx->method->get_by_subject == NULL))
		return X509_LU_FAIL;
	if (ctx->skip)
		return 0;
	return ctx->method->get_by_subject(ctx, type, name, ret);
}

int
X509_LOOKUP_by_issuer_serial(X509_LOOKUP *ctx, int type, X509_NAME *name,
    ASN1_INTEGER *serial, X509_OBJECT *ret)
{
	if ((ctx->method == NULL) ||
	    (ctx->method->get_by_issuer_serial == NULL))
		return X509_LU_FAIL;
	return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
}

int
X509_LOOKUP_by_fingerprint(X509_LOOKUP *ctx, int type, unsigned char *bytes,
    int len, X509_OBJECT *ret)
{
	if ((ctx->method == NULL) || (ctx->method->get_by_fingerprint == NULL))
		return X509_LU_FAIL;
	return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
}

int
X509_LOOKUP_by_alias(X509_LOOKUP *ctx, int type, char *str, int len,
    X509_OBJECT *ret)
{
	if ((ctx->method == NULL) || (ctx->method->get_by_alias == NULL))
		return X509_LU_FAIL;
	return ctx->method->get_by_alias(ctx, type, str, len, ret);
}

static int
x509_object_cmp(const X509_OBJECT * const *a, const X509_OBJECT * const *b)
{
	int ret;

	ret = ((*a)->type - (*b)->type);
	if (ret)
		return ret;
	switch ((*a)->type) {
	case X509_LU_X509:
		ret = X509_subject_name_cmp((*a)->data.x509, (*b)->data.x509);
		break;
	case X509_LU_CRL:
		ret = X509_CRL_cmp((*a)->data.crl, (*b)->data.crl);
		break;
	default:
		/* abort(); */
		return 0;
	}
	return ret;
}

X509_STORE *
X509_STORE_new(void)
{
	X509_STORE *ret;

	if ((ret = malloc(sizeof(X509_STORE))) == NULL)
		return NULL;
	ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
	ret->cache = 1;
	ret->get_cert_methods = sk_X509_LOOKUP_new_null();
	ret->verify = 0;
	ret->verify_cb = 0;

	if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
		goto err;

	ret->get_issuer = 0;
	ret->check_issued = 0;
	ret->check_revocation = 0;
	ret->get_crl = 0;
	ret->check_crl = 0;
	ret->cert_crl = 0;
	ret->lookup_certs = 0;
	ret->lookup_crls = 0;
	ret->cleanup = 0;

	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
		goto err;

	ret->references = 1;
	return ret;

err:
	X509_VERIFY_PARAM_free(ret->param);
	sk_X509_LOOKUP_free(ret->get_cert_methods);
	sk_X509_OBJECT_free(ret->objs);
	free(ret);
	return NULL;
}

static void
cleanup(X509_OBJECT *a)
{
	if (a->type == X509_LU_X509) {
		X509_free(a->data.x509);
	} else if (a->type == X509_LU_CRL) {
		X509_CRL_free(a->data.crl);
	} else {
		/* abort(); */
	}

	free(a);
}

void
X509_STORE_free(X509_STORE *vfy)
{
	int i;
	STACK_OF(X509_LOOKUP) *sk;
	X509_LOOKUP *lu;

	if (vfy == NULL)
		return;

	i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
	if (i > 0)
		return;

	sk = vfy->get_cert_methods;
	for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
		lu = sk_X509_LOOKUP_value(sk, i);
		X509_LOOKUP_shutdown(lu);
		X509_LOOKUP_free(lu);
	}
	sk_X509_LOOKUP_free(sk);
	sk_X509_OBJECT_pop_free(vfy->objs, cleanup);

	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
	X509_VERIFY_PARAM_free(vfy->param);
	free(vfy);
}

X509_LOOKUP *
X509_STORE_add_lookup(X509_STORE *v, X509_LOOKUP_METHOD *m)
{
	int i;
	STACK_OF(X509_LOOKUP) *sk;
	X509_LOOKUP *lu;

	sk = v->get_cert_methods;
	for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
		lu = sk_X509_LOOKUP_value(sk, i);
		if (m == lu->method) {
			return lu;
		}
	}
	/* a new one */
	lu = X509_LOOKUP_new(m);
	if (lu == NULL)
		return NULL;
	else {
		lu->store_ctx = v;
		if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
			return lu;
		else {
			X509_LOOKUP_free(lu);
			return NULL;
		}
	}
}

int
X509_STORE_get_by_subject(X509_STORE_CTX *vs, int type, X509_NAME *name,
    X509_OBJECT *ret)
{
	X509_STORE *ctx = vs->ctx;
	X509_LOOKUP *lu;
	X509_OBJECT stmp, *tmp;
	int i, j;

	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
	tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);

	if (tmp == NULL || type == X509_LU_CRL) {
		for (i = vs->current_method;
		    i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
			lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
			j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
			if (j < 0) {
				vs->current_method = j;
				return j;
			} else if (j) {
				tmp = &stmp;
				break;
			}
		}
		vs->current_method = 0;
		if (tmp == NULL)
			return 0;
	}

/*	if (ret->data.ptr != NULL)
		X509_OBJECT_free_contents(ret); */

	ret->type = tmp->type;
	ret->data.ptr = tmp->data.ptr;

	X509_OBJECT_up_ref_count(ret);

	return 1;
}

int
X509_STORE_add_cert(X509_STORE *ctx, X509 *x)
{
	X509_OBJECT *obj;
	int ret = 1;

	if (x == NULL)
		return 0;
	obj = malloc(sizeof(X509_OBJECT));
	if (obj == NULL) {
		X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
		return 0;
	}
	obj->type = X509_LU_X509;
	obj->data.x509 = x;

	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);

	X509_OBJECT_up_ref_count(obj);

	if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
		X509_OBJECT_free_contents(obj);
		free(obj);
		X509err(X509_F_X509_STORE_ADD_CERT,
		    X509_R_CERT_ALREADY_IN_HASH_TABLE);
		ret = 0;
	} else
		sk_X509_OBJECT_push(ctx->objs, obj);

	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);

	return ret;
}

int
X509_STORE_add_crl(X509_STORE *ctx, X509_CRL *x)
{
	X509_OBJECT *obj;
	int ret = 1;

	if (x == NULL)
		return 0;
	obj = malloc(sizeof(X509_OBJECT));
	if (obj == NULL) {
		X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
		return 0;
	}
	obj->type = X509_LU_CRL;
	obj->data.crl = x;

	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);

	X509_OBJECT_up_ref_count(obj);

	if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
		X509_OBJECT_free_contents(obj);
		free(obj);
		X509err(X509_F_X509_STORE_ADD_CRL,
		    X509_R_CERT_ALREADY_IN_HASH_TABLE);
		ret = 0;
	} else
		sk_X509_OBJECT_push(ctx->objs, obj);

	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);

	return ret;
}

void
X509_OBJECT_up_ref_count(X509_OBJECT *a)
{
	switch (a->type) {
	case X509_LU_X509:
		CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509);
		break;
	case X509_LU_CRL:
		CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL);
		break;
	}
}

void
X509_OBJECT_free_contents(X509_OBJECT *a)
{
	switch (a->type) {
	case X509_LU_X509:
		X509_free(a->data.x509);
		break;
	case X509_LU_CRL:
		X509_CRL_free(a->data.crl);
		break;
	}
}

static int
x509_object_idx_cnt(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name,
    int *pnmatch)
{
	X509_OBJECT stmp;
	X509 x509_s;
	X509_CINF cinf_s;
	X509_CRL crl_s;
	X509_CRL_INFO crl_info_s;
	int idx;

	stmp.type = type;
	switch (type) {
	case X509_LU_X509:
		stmp.data.x509 = &x509_s;
		x509_s.cert_info = &cinf_s;
		cinf_s.subject = name;
		break;
	case X509_LU_CRL:
		stmp.data.crl = &crl_s;
		crl_s.crl = &crl_info_s;
		crl_info_s.issuer = name;
		break;
	default:
		/* abort(); */
		return -1;
	}

	idx = sk_X509_OBJECT_find(h, &stmp);
	if (idx >= 0 && pnmatch) {
		int tidx;
		const X509_OBJECT *tobj, *pstmp;
		*pnmatch = 1;
		pstmp = &stmp;
		for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
			tobj = sk_X509_OBJECT_value(h, tidx);
			if (x509_object_cmp(&tobj, &pstmp))
				break;
			(*pnmatch)++;
		}
	}
	return idx;
}

int
X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) *h, int type, X509_NAME *name)
{
	return x509_object_idx_cnt(h, type, name, NULL);
}

X509_OBJECT *
X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
    X509_NAME *name)
{
	int idx;

	idx = X509_OBJECT_idx_by_subject(h, type, name);
	if (idx == -1)
		return NULL;
	return sk_X509_OBJECT_value(h, idx);
}

STACK_OF(X509) *
X509_STORE_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
{
	int i, idx, cnt;
	STACK_OF(X509) *sk;
	X509 *x;
	X509_OBJECT *obj;

	sk = sk_X509_new_null();
	if (sk == NULL)
		return NULL;
	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
	if (idx < 0) {
		/* Nothing found in cache: do lookup to possibly add new
		 * objects to cache
		 */
		X509_OBJECT xobj;
		CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
		if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
			sk_X509_free(sk);
			return NULL;
		}
		X509_OBJECT_free_contents(&xobj);
		CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
		idx = x509_object_idx_cnt(ctx->ctx->objs,
		    X509_LU_X509, nm, &cnt);
		if (idx < 0) {
			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
			sk_X509_free(sk);
			return NULL;
		}
	}
	for (i = 0; i < cnt; i++, idx++) {
		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
		x = obj->data.x509;
		CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
		if (!sk_X509_push(sk, x)) {
			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
			X509_free(x);
			sk_X509_pop_free(sk, X509_free);
			return NULL;
		}
	}
	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
	return sk;

}

STACK_OF(X509_CRL) *
X509_STORE_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
{
	int i, idx, cnt;
	STACK_OF(X509_CRL) *sk;
	X509_CRL *x;
	X509_OBJECT *obj, xobj;

	sk = sk_X509_CRL_new_null();
	if (sk == NULL)
		return NULL;
	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
	/* Check cache first */
	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);

	/* Always do lookup to possibly add new CRLs to cache
	 */
	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
	if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
		sk_X509_CRL_free(sk);
		return NULL;
	}
	X509_OBJECT_free_contents(&xobj);
	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
	idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
	if (idx < 0) {
		CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
		sk_X509_CRL_free(sk);
		return NULL;
	}

	for (i = 0; i < cnt; i++, idx++) {
		obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
		x = obj->data.crl;
		CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
		if (!sk_X509_CRL_push(sk, x)) {
			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
			X509_CRL_free(x);
			sk_X509_CRL_pop_free(sk, X509_CRL_free);
			return NULL;
		}
	}
	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
	return sk;
}

X509_OBJECT *
X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) *h, X509_OBJECT *x)
{
	int idx, i;
	X509_OBJECT *obj;

	idx = sk_X509_OBJECT_find(h, x);
	if (idx == -1)
		return NULL;
	if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
		return sk_X509_OBJECT_value(h, idx);
	for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
		obj = sk_X509_OBJECT_value(h, i);
		if (x509_object_cmp((const X509_OBJECT **)&obj,
		    (const X509_OBJECT **)&x))
			return NULL;
		if (x->type == X509_LU_X509) {
			if (!X509_cmp(obj->data.x509, x->data.x509))
				return obj;
		} else if (x->type == X509_LU_CRL) {
			if (!X509_CRL_match(obj->data.crl, x->data.crl))
				return obj;
		} else
			return obj;
	}
	return NULL;
}


/* Try to get issuer certificate from store. Due to limitations
 * of the API this can only retrieve a single certificate matching
 * a given subject name. However it will fill the cache with all
 * matching certificates, so we can examine the cache for all
 * matches.
 *
 * Return values are:
 *  1 lookup successful.
 *  0 certificate not found.
 * -1 some other error.
 */
int
X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
{
	X509_NAME *xn;
	X509_OBJECT obj, *pobj;
	int i, ok, idx, ret;

	*issuer = NULL;
	xn = X509_get_issuer_name(x);
	ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
	if (ok != X509_LU_X509) {
		if (ok == X509_LU_RETRY) {
			X509_OBJECT_free_contents(&obj);
			X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,
			    X509_R_SHOULD_RETRY);
			return -1;
		} else if (ok != X509_LU_FAIL) {
			X509_OBJECT_free_contents(&obj);
			/* not good :-(, break anyway */
			return -1;
		}
		return 0;
	}
	/* If certificate matches all OK */
	if (ctx->check_issued(ctx, x, obj.data.x509)) {
		if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
			*issuer = obj.data.x509;
			return 1;
		}
	}
	X509_OBJECT_free_contents(&obj);

	/* Else find index of first cert accepted by 'check_issued' */
	ret = 0;
	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
	idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
	if (idx != -1) /* should be true as we've had at least one match */ {
		/* Look through all matching certs for suitable issuer */
		for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
			pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
			/* See if we've run past the matches */
			if (pobj->type != X509_LU_X509)
				break;
			if (X509_NAME_cmp(xn,
			    X509_get_subject_name(pobj->data.x509)))
				break;
			if (ctx->check_issued(ctx, x, pobj->data.x509)) {
				*issuer = pobj->data.x509;
				ret = 1;
				/*
				 * If times check, exit with match,
				 * otherwise keep looking. Leave last
				 * match in issuer so we return nearest
				 * match if no certificate time is OK.
				 */
				if (x509_check_cert_time(ctx, *issuer, 1))
					break;
			}
		}
	}
	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
	if (*issuer)
		CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509);
	return ret;
}

int
X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
{
	return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
}

int
X509_STORE_set_depth(X509_STORE *ctx, int depth)
{
	X509_VERIFY_PARAM_set_depth(ctx->param, depth);
	return 1;
}

int
X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
{
	return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
}

int
X509_STORE_set_trust(X509_STORE *ctx, int trust)
{
	return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
}

int
X509_STORE_set1_param(X509_STORE *ctx, X509_VERIFY_PARAM *param)
{
	return X509_VERIFY_PARAM_set1(ctx->param, param);
}

void
X509_STORE_set_verify_cb(X509_STORE *ctx,
    int (*verify_cb)(int, X509_STORE_CTX *))
{
	ctx->verify_cb = verify_cb;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: x509_lu.c,v 1.20 2015/04/25 16:02:55 doug Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <stdio.h>
60
61			#include <openssl/err.h>
62			#include <openssl/lhash.h>
63			#include <openssl/x509.h>
64			#include <openssl/x509v3.h>
65			#include "x509_lcl.h"
66
67			X509_LOOKUP *
68			X509_LOOKUP_new(X509_LOOKUP_METHOD *method)
69		2	{
70			X509_LOOKUP *ret;
71
72		2	ret = malloc(sizeof(X509_LOOKUP));
73	✗✓	2	if (ret == NULL)
74			return NULL;
75
76		2	ret->init = 0;
77		2	ret->skip = 0;
78		2	ret->method = method;
79		2	ret->method_data = NULL;
80		2	ret->store_ctx = NULL;
81	✗✓✗✗	2	if ((method->new_item != NULL) && !method->new_item(ret)) {
82			free(ret);
83			return NULL;
84			}
85		2	return ret;
86			}
87
88			void
89			X509_LOOKUP_free(X509_LOOKUP *ctx)
90			{
91			if (ctx == NULL)
92			return;
93			if ((ctx->method != NULL) && (ctx->method->free != NULL))
94			(*ctx->method->free)(ctx);
95			free(ctx);
96			}
97
98			int
99			X509_LOOKUP_init(X509_LOOKUP *ctx)
100			{
101			if (ctx->method == NULL)
102			return 0;
103			if (ctx->method->init != NULL)
104			return ctx->method->init(ctx);
105			else
106			return 1;
107			}
108
109			int
110			X509_LOOKUP_shutdown(X509_LOOKUP *ctx)
111			{
112			if (ctx->method == NULL)
113			return 0;
114			if (ctx->method->shutdown != NULL)
115			return ctx->method->shutdown(ctx);
116			else
117			return 1;
118			}
119
120			int
121			X509_LOOKUP_ctrl(X509_LOOKUP ctx, int cmd, const char argc, long argl,
122			char **ret)
123		2	{
124	✗✓	2	if (ctx->method == NULL)
125			return -1;
126	✓✗	2	if (ctx->method->ctrl != NULL)
127		2	return ctx->method->ctrl(ctx, cmd, argc, argl, ret);
128			else
129			return 1;
130			}
131
132			int
133			X509_LOOKUP_by_subject(X509_LOOKUP ctx, int type, X509_NAME name,
134			X509_OBJECT *ret)
135			{
136			if ((ctx->method == NULL) \|\| (ctx->method->get_by_subject == NULL))
137			return X509_LU_FAIL;
138			if (ctx->skip)
139			return 0;
140			return ctx->method->get_by_subject(ctx, type, name, ret);
141			}
142
143			int
144			X509_LOOKUP_by_issuer_serial(X509_LOOKUP ctx, int type, X509_NAME name,
145			ASN1_INTEGER serial, X509_OBJECT ret)
146			{
147			if ((ctx->method == NULL) \|\|
148			(ctx->method->get_by_issuer_serial == NULL))
149			return X509_LU_FAIL;
150			return ctx->method->get_by_issuer_serial(ctx, type, name, serial, ret);
151			}
152
153			int
154			X509_LOOKUP_by_fingerprint(X509_LOOKUP ctx, int type, unsigned char bytes,
155			int len, X509_OBJECT *ret)
156			{
157			if ((ctx->method == NULL) \|\| (ctx->method->get_by_fingerprint == NULL))
158			return X509_LU_FAIL;
159			return ctx->method->get_by_fingerprint(ctx, type, bytes, len, ret);
160			}
161
162			int
163			X509_LOOKUP_by_alias(X509_LOOKUP ctx, int type, char str, int len,
164			X509_OBJECT *ret)
165			{
166			if ((ctx->method == NULL) \|\| (ctx->method->get_by_alias == NULL))
167			return X509_LU_FAIL;
168			return ctx->method->get_by_alias(ctx, type, str, len, ret);
169			}
170
171			static int
172			x509_object_cmp(const X509_OBJECT * const a, const X509_OBJECT const *b)
173		33838	{
174			int ret;
175
176		33838	ret = ((a)->type - (b)->type);
177	✗✓	33838	if (ret)
178			return ret;
179	✓✗✗	33838	switch ((*a)->type) {
180			case X509_LU_X509:
181		33838	ret = X509_subject_name_cmp((a)->data.x509, (b)->data.x509);
182		33838	break;
183			case X509_LU_CRL:
184			ret = X509_CRL_cmp((a)->data.crl, (b)->data.crl);
185			break;
186			default:
187			/* abort(); */
188			return 0;
189			}
190		33838	return ret;
191			}
192
193			X509_STORE *
194			X509_STORE_new(void)
195		3	{
196			X509_STORE *ret;
197
198	✗✓	3	if ((ret = malloc(sizeof(X509_STORE))) == NULL)
199			return NULL;
200		3	ret->objs = sk_X509_OBJECT_new(x509_object_cmp);
201		3	ret->cache = 1;
202		3	ret->get_cert_methods = sk_X509_LOOKUP_new_null();
203		3	ret->verify = 0;
204		3	ret->verify_cb = 0;
205
206	✓✗	3	if ((ret->param = X509_VERIFY_PARAM_new()) == NULL)
207			goto err;
208
209		3	ret->get_issuer = 0;
210		3	ret->check_issued = 0;
211		3	ret->check_revocation = 0;
212		3	ret->get_crl = 0;
213		3	ret->check_crl = 0;
214		3	ret->cert_crl = 0;
215		3	ret->lookup_certs = 0;
216		3	ret->lookup_crls = 0;
217		3	ret->cleanup = 0;
218
219	✗✓	3	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE, ret, &ret->ex_data))
220			goto err;
221
222		3	ret->references = 1;
223		3	return ret;
224
225			err:
226			X509_VERIFY_PARAM_free(ret->param);
227			sk_X509_LOOKUP_free(ret->get_cert_methods);
228			sk_X509_OBJECT_free(ret->objs);
229			free(ret);
230			return NULL;
231			}
232
233			static void
234			cleanup(X509_OBJECT *a)
235			{
236			if (a->type == X509_LU_X509) {
237			X509_free(a->data.x509);
238			} else if (a->type == X509_LU_CRL) {
239			X509_CRL_free(a->data.crl);
240			} else {
241			/* abort(); */
242			}
243
244			free(a);
245			}
246
247			void
248			X509_STORE_free(X509_STORE *vfy)
249			{
250			int i;
251			STACK_OF(X509_LOOKUP) *sk;
252			X509_LOOKUP *lu;
253
254			if (vfy == NULL)
255			return;
256
257			i = CRYPTO_add(&vfy->references, -1, CRYPTO_LOCK_X509_STORE);
258			if (i > 0)
259			return;
260
261			sk = vfy->get_cert_methods;
262			for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
263			lu = sk_X509_LOOKUP_value(sk, i);
264			X509_LOOKUP_shutdown(lu);
265			X509_LOOKUP_free(lu);
266			}
267			sk_X509_LOOKUP_free(sk);
268			sk_X509_OBJECT_pop_free(vfy->objs, cleanup);
269
270			CRYPTO_free_ex_data(CRYPTO_EX_INDEX_X509_STORE, vfy, &vfy->ex_data);
271			X509_VERIFY_PARAM_free(vfy->param);
272			free(vfy);
273			}
274
275			X509_LOOKUP *
276			X509_STORE_add_lookup(X509_STORE v, X509_LOOKUP_METHOD m)
277		2	{
278			int i;
279			STACK_OF(X509_LOOKUP) *sk;
280			X509_LOOKUP *lu;
281
282		2	sk = v->get_cert_methods;
283	✗✓	2	for (i = 0; i < sk_X509_LOOKUP_num(sk); i++) {
284			lu = sk_X509_LOOKUP_value(sk, i);
285			if (m == lu->method) {
286			return lu;
287			}
288			}
289			/* a new one */
290		2	lu = X509_LOOKUP_new(m);
291	✗✓	2	if (lu == NULL)
292			return NULL;
293			else {
294		2	lu->store_ctx = v;
295	✓✗	2	if (sk_X509_LOOKUP_push(v->get_cert_methods, lu))
296		2	return lu;
297			else {
298			X509_LOOKUP_free(lu);
299			return NULL;
300			}
301			}
302			}
303
304			int
305			X509_STORE_get_by_subject(X509_STORE_CTX vs, int type, X509_NAME name,
306			X509_OBJECT *ret)
307		6	{
308		6	X509_STORE *ctx = vs->ctx;
309			X509_LOOKUP *lu;
310			X509_OBJECT stmp, *tmp;
311			int i, j;
312
313		6	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
314		6	tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
315		6	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
316
317	✓✓	6	if (tmp == NULL \|\| type == X509_LU_CRL) {
318		2	for (i = vs->current_method;
319	✗✓	2	i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
320			lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
321			j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
322			if (j < 0) {
323			vs->current_method = j;
324			return j;
325			} else if (j) {
326			tmp = &stmp;
327			break;
328			}
329			}
330		2	vs->current_method = 0;
331	✓✗	2	if (tmp == NULL)
332		2	return 0;
333			}
334
335			/* if (ret->data.ptr != NULL)
336			X509_OBJECT_free_contents(ret); */
337
338		4	ret->type = tmp->type;
339		4	ret->data.ptr = tmp->data.ptr;
340
341		4	X509_OBJECT_up_ref_count(ret);
342
343		4	return 1;
344			}
345
346			int
347			X509_STORE_add_cert(X509_STORE ctx, X509 x)
348		152	{
349			X509_OBJECT *obj;
350		152	int ret = 1;
351
352	✗✓	152	if (x == NULL)
353			return 0;
354		152	obj = malloc(sizeof(X509_OBJECT));
355	✗✓	152	if (obj == NULL) {
356			X509err(X509_F_X509_STORE_ADD_CERT, ERR_R_MALLOC_FAILURE);
357			return 0;
358			}
359		152	obj->type = X509_LU_X509;
360		152	obj->data.x509 = x;
361
362		152	CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
363
364		152	X509_OBJECT_up_ref_count(obj);
365
366	✗✓	152	if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
367			X509_OBJECT_free_contents(obj);
368			free(obj);
369			X509err(X509_F_X509_STORE_ADD_CERT,
370			X509_R_CERT_ALREADY_IN_HASH_TABLE);
371			ret = 0;
372			} else
373		152	sk_X509_OBJECT_push(ctx->objs, obj);
374
375		152	CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
376
377		152	return ret;
378			}
379
380			int
381			X509_STORE_add_crl(X509_STORE ctx, X509_CRL x)
382			{
383			X509_OBJECT *obj;
384			int ret = 1;
385
386			if (x == NULL)
387			return 0;
388			obj = malloc(sizeof(X509_OBJECT));
389			if (obj == NULL) {
390			X509err(X509_F_X509_STORE_ADD_CRL, ERR_R_MALLOC_FAILURE);
391			return 0;
392			}
393			obj->type = X509_LU_CRL;
394			obj->data.crl = x;
395
396			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
397
398			X509_OBJECT_up_ref_count(obj);
399
400			if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
401			X509_OBJECT_free_contents(obj);
402			free(obj);
403			X509err(X509_F_X509_STORE_ADD_CRL,
404			X509_R_CERT_ALREADY_IN_HASH_TABLE);
405			ret = 0;
406			} else
407			sk_X509_OBJECT_push(ctx->objs, obj);
408
409			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
410
411			return ret;
412			}
413
414			void
415			X509_OBJECT_up_ref_count(X509_OBJECT *a)
416		156	{
417	✓✗✗	156	switch (a->type) {
418			case X509_LU_X509:
419		156	CRYPTO_add(&a->data.x509->references, 1, CRYPTO_LOCK_X509);
420		156	break;
421			case X509_LU_CRL:
422			CRYPTO_add(&a->data.crl->references, 1, CRYPTO_LOCK_X509_CRL);
423			break;
424			}
425		156	}
426
427			void
428			X509_OBJECT_free_contents(X509_OBJECT *a)
429			{
430			switch (a->type) {
431			case X509_LU_X509:
432			X509_free(a->data.x509);
433			break;
434			case X509_LU_CRL:
435			X509_CRL_free(a->data.crl);
436			break;
437			}
438			}
439
440			static int
441			x509_object_idx_cnt(STACK_OF(X509_OBJECT) h, int type, X509_NAME name,
442			int *pnmatch)
443		6	{
444			X509_OBJECT stmp;
445			X509 x509_s;
446			X509_CINF cinf_s;
447			X509_CRL crl_s;
448			X509_CRL_INFO crl_info_s;
449			int idx;
450
451		6	stmp.type = type;
452	✓✗✗	6	switch (type) {
453			case X509_LU_X509:
454		6	stmp.data.x509 = &x509_s;
455		6	x509_s.cert_info = &cinf_s;
456		6	cinf_s.subject = name;
457		6	break;
458			case X509_LU_CRL:
459			stmp.data.crl = &crl_s;
460			crl_s.crl = &crl_info_s;
461			crl_info_s.issuer = name;
462			break;
463			default:
464			/* abort(); */
465			return -1;
466			}
467
468		6	idx = sk_X509_OBJECT_find(h, &stmp);
469	✗✓	6	if (idx >= 0 && pnmatch) {
470			int tidx;
471			const X509_OBJECT tobj, pstmp;
472			*pnmatch = 1;
473			pstmp = &stmp;
474			for (tidx = idx + 1; tidx < sk_X509_OBJECT_num(h); tidx++) {
475			tobj = sk_X509_OBJECT_value(h, tidx);
476			if (x509_object_cmp(&tobj, &pstmp))
477			break;
478			(*pnmatch)++;
479			}
480			}
481		6	return idx;
482			}
483
484			int
485			X509_OBJECT_idx_by_subject(STACK_OF(X509_OBJECT) h, int type, X509_NAME name)
486		6	{
487		6	return x509_object_idx_cnt(h, type, name, NULL);
488			}
489
490			X509_OBJECT *
491			X509_OBJECT_retrieve_by_subject(STACK_OF(X509_OBJECT) *h, int type,
492			X509_NAME *name)
493		6	{
494			int idx;
495
496		6	idx = X509_OBJECT_idx_by_subject(h, type, name);
497	✓✓	6	if (idx == -1)
498		2	return NULL;
499		4	return sk_X509_OBJECT_value(h, idx);
500			}
501
502			STACK_OF(X509) *
503			X509_STORE_get1_certs(X509_STORE_CTX ctx, X509_NAME nm)
504			{
505			int i, idx, cnt;
506			STACK_OF(X509) *sk;
507			X509 *x;
508			X509_OBJECT *obj;
509
510			sk = sk_X509_new_null();
511			if (sk == NULL)
512			return NULL;
513			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
514			idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
515			if (idx < 0) {
516			/* Nothing found in cache: do lookup to possibly add new
517			* objects to cache
518			*/
519			X509_OBJECT xobj;
520			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
521			if (!X509_STORE_get_by_subject(ctx, X509_LU_X509, nm, &xobj)) {
522			sk_X509_free(sk);
523			return NULL;
524			}
525			X509_OBJECT_free_contents(&xobj);
526			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
527			idx = x509_object_idx_cnt(ctx->ctx->objs,
528			X509_LU_X509, nm, &cnt);
529			if (idx < 0) {
530			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
531			sk_X509_free(sk);
532			return NULL;
533			}
534			}
535			for (i = 0; i < cnt; i++, idx++) {
536			obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
537			x = obj->data.x509;
538			CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
539			if (!sk_X509_push(sk, x)) {
540			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
541			X509_free(x);
542			sk_X509_pop_free(sk, X509_free);
543			return NULL;
544			}
545			}
546			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
547			return sk;
548
549			}
550
551			STACK_OF(X509_CRL) *
552			X509_STORE_get1_crls(X509_STORE_CTX ctx, X509_NAME nm)
553			{
554			int i, idx, cnt;
555			STACK_OF(X509_CRL) *sk;
556			X509_CRL *x;
557			X509_OBJECT *obj, xobj;
558
559			sk = sk_X509_CRL_new_null();
560			if (sk == NULL)
561			return NULL;
562			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
563			/* Check cache first */
564			idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
565
566			/* Always do lookup to possibly add new CRLs to cache
567			*/
568			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
569			if (!X509_STORE_get_by_subject(ctx, X509_LU_CRL, nm, &xobj)) {
570			sk_X509_CRL_free(sk);
571			return NULL;
572			}
573			X509_OBJECT_free_contents(&xobj);
574			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
575			idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
576			if (idx < 0) {
577			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
578			sk_X509_CRL_free(sk);
579			return NULL;
580			}
581
582			for (i = 0; i < cnt; i++, idx++) {
583			obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
584			x = obj->data.crl;
585			CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
586			if (!sk_X509_CRL_push(sk, x)) {
587			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
588			X509_CRL_free(x);
589			sk_X509_CRL_pop_free(sk, X509_CRL_free);
590			return NULL;
591			}
592			}
593			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
594			return sk;
595			}
596
597			X509_OBJECT *
598			X509_OBJECT_retrieve_match(STACK_OF(X509_OBJECT) h, X509_OBJECT x)
599		152	{
600			int idx, i;
601			X509_OBJECT *obj;
602
603		152	idx = sk_X509_OBJECT_find(h, x);
604	✓✗	152	if (idx == -1)
605		152	return NULL;
606			if ((x->type != X509_LU_X509) && (x->type != X509_LU_CRL))
607			return sk_X509_OBJECT_value(h, idx);
608			for (i = idx; i < sk_X509_OBJECT_num(h); i++) {
609			obj = sk_X509_OBJECT_value(h, i);
610			if (x509_object_cmp((const X509_OBJECT **)&obj,
611			(const X509_OBJECT **)&x))
612			return NULL;
613			if (x->type == X509_LU_X509) {
614			if (!X509_cmp(obj->data.x509, x->data.x509))
615			return obj;
616			} else if (x->type == X509_LU_CRL) {
617			if (!X509_CRL_match(obj->data.crl, x->data.crl))
618			return obj;
619			} else
620			return obj;
621			}
622			return NULL;
623			}
624
625
626			/* Try to get issuer certificate from store. Due to limitations
627			* of the API this can only retrieve a single certificate matching
628			* a given subject name. However it will fill the cache with all
629			* matching certificates, so we can examine the cache for all
630			* matches.
631			*
632			* Return values are:
633			* 1 lookup successful.
634			* 0 certificate not found.
635			* -1 some other error.
636			*/
637			int
638			X509_STORE_CTX_get1_issuer(X509 *issuer, X509_STORE_CTX ctx, X509 *x)
639		6	{
640			X509_NAME *xn;
641			X509_OBJECT obj, *pobj;
642			int i, ok, idx, ret;
643
644		6	*issuer = NULL;
645		6	xn = X509_get_issuer_name(x);
646		6	ok = X509_STORE_get_by_subject(ctx, X509_LU_X509, xn, &obj);
647	✓✓	6	if (ok != X509_LU_X509) {
648	✗✓	2	if (ok == X509_LU_RETRY) {
649			X509_OBJECT_free_contents(&obj);
650			X509err(X509_F_X509_STORE_CTX_GET1_ISSUER,
651			X509_R_SHOULD_RETRY);
652			return -1;
653	✗✓	2	} else if (ok != X509_LU_FAIL) {
654			X509_OBJECT_free_contents(&obj);
655			/* not good :-(, break anyway */
656			return -1;
657			}
658		2	return 0;
659			}
660			/* If certificate matches all OK */
661	✓✗	4	if (ctx->check_issued(ctx, x, obj.data.x509)) {
662	✓✗	4	if (x509_check_cert_time(ctx, obj.data.x509, 1)) {
663		4	*issuer = obj.data.x509;
664		4	return 1;
665			}
666			}
667			X509_OBJECT_free_contents(&obj);
668
669			/* Else find index of first cert accepted by 'check_issued' */
670			ret = 0;
671			CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
672			idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
673			if (idx != -1) /* should be true as we've had at least one match */ {
674			/* Look through all matching certs for suitable issuer */
675			for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
676			pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
677			/* See if we've run past the matches */
678			if (pobj->type != X509_LU_X509)
679			break;
680			if (X509_NAME_cmp(xn,
681			X509_get_subject_name(pobj->data.x509)))
682			break;
683			if (ctx->check_issued(ctx, x, pobj->data.x509)) {
684			*issuer = pobj->data.x509;
685			ret = 1;
686			/*
687			* If times check, exit with match,
688			* otherwise keep looking. Leave last
689			* match in issuer so we return nearest
690			* match if no certificate time is OK.
691			*/
692			if (x509_check_cert_time(ctx, *issuer, 1))
693			break;
694			}
695			}
696			}
697			CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
698			if (*issuer)
699			CRYPTO_add(&(*issuer)->references, 1, CRYPTO_LOCK_X509);
700			return ret;
701			}
702
703			int
704			X509_STORE_set_flags(X509_STORE *ctx, unsigned long flags)
705			{
706			return X509_VERIFY_PARAM_set_flags(ctx->param, flags);
707			}
708
709			int
710			X509_STORE_set_depth(X509_STORE *ctx, int depth)
711			{
712			X509_VERIFY_PARAM_set_depth(ctx->param, depth);
713			return 1;
714			}
715
716			int
717			X509_STORE_set_purpose(X509_STORE *ctx, int purpose)
718			{
719			return X509_VERIFY_PARAM_set_purpose(ctx->param, purpose);
720			}
721
722			int
723			X509_STORE_set_trust(X509_STORE *ctx, int trust)
724			{
725			return X509_VERIFY_PARAM_set_trust(ctx->param, trust);
726			}
727
728			int
729			X509_STORE_set1_param(X509_STORE ctx, X509_VERIFY_PARAM param)
730			{
731			return X509_VERIFY_PARAM_set1(ctx->param, param);
732			}
733
734			void
735			X509_STORE_set_verify_cb(X509_STORE *ctx,
736			int (verify_cb)(int, X509_STORE_CTX ))
737		1	{
738		1	ctx->verify_cb = verify_cb;
739		1	}