/* $OpenBSD: x509_v3.c,v 1.19 2022/11/14 17:48:50 beck 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 #include #include #include #include #include #include #include #include "x509_lcl.h" int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *x) { if (x == NULL) return (0); return (sk_X509_EXTENSION_num(x)); } LCRYPTO_ALIAS(X509v3_get_ext_count) int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *x, int nid, int lastpos) { ASN1_OBJECT *obj; obj = OBJ_nid2obj(nid); if (obj == NULL) return (-2); return (X509v3_get_ext_by_OBJ(x, obj, lastpos)); } LCRYPTO_ALIAS(X509v3_get_ext_by_NID) int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *sk, const ASN1_OBJECT *obj, int lastpos) { int n; X509_EXTENSION *ex; if (sk == NULL) return (-1); lastpos++; if (lastpos < 0) lastpos = 0; n = sk_X509_EXTENSION_num(sk); for (; lastpos < n; lastpos++) { ex = sk_X509_EXTENSION_value(sk, lastpos); if (OBJ_cmp(ex->object, obj) == 0) return (lastpos); } return (-1); } LCRYPTO_ALIAS(X509v3_get_ext_by_OBJ) int X509v3_get_ext_by_critical(const STACK_OF(X509_EXTENSION) *sk, int crit, int lastpos) { int n; X509_EXTENSION *ex; if (sk == NULL) return (-1); lastpos++; if (lastpos < 0) lastpos = 0; n = sk_X509_EXTENSION_num(sk); for (; lastpos < n; lastpos++) { ex = sk_X509_EXTENSION_value(sk, lastpos); if (((ex->critical > 0) && crit) || ((ex->critical <= 0) && !crit)) return (lastpos); } return (-1); } LCRYPTO_ALIAS(X509v3_get_ext_by_critical) X509_EXTENSION * X509v3_get_ext(const STACK_OF(X509_EXTENSION) *x, int loc) { if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) return NULL; else return sk_X509_EXTENSION_value(x, loc); } LCRYPTO_ALIAS(X509v3_get_ext) X509_EXTENSION * X509v3_delete_ext(STACK_OF(X509_EXTENSION) *x, int loc) { X509_EXTENSION *ret; if (x == NULL || sk_X509_EXTENSION_num(x) <= loc || loc < 0) return (NULL); ret = sk_X509_EXTENSION_delete(x, loc); return (ret); } LCRYPTO_ALIAS(X509v3_delete_ext) STACK_OF(X509_EXTENSION) * X509v3_add_ext(STACK_OF(X509_EXTENSION) **x, X509_EXTENSION *ex, int loc) { X509_EXTENSION *new_ex = NULL; int n; STACK_OF(X509_EXTENSION) *sk = NULL; if (x == NULL) { X509error(ERR_R_PASSED_NULL_PARAMETER); goto err2; } if (*x == NULL) { if ((sk = sk_X509_EXTENSION_new_null()) == NULL) goto err; } else sk= *x; n = sk_X509_EXTENSION_num(sk); if (loc > n) loc = n; else if (loc < 0) loc = n; if ((new_ex = X509_EXTENSION_dup(ex)) == NULL) goto err2; if (!sk_X509_EXTENSION_insert(sk, new_ex, loc)) goto err; if (*x == NULL) *x = sk; return (sk); err: X509error(ERR_R_MALLOC_FAILURE); err2: if (new_ex != NULL) X509_EXTENSION_free(new_ex); if (sk != NULL && (x != NULL && sk != *x)) sk_X509_EXTENSION_free(sk); return (NULL); } LCRYPTO_ALIAS(X509v3_add_ext) X509_EXTENSION * X509_EXTENSION_create_by_NID(X509_EXTENSION **ex, int nid, int crit, ASN1_OCTET_STRING *data) { ASN1_OBJECT *obj; X509_EXTENSION *ret; obj = OBJ_nid2obj(nid); if (obj == NULL) { X509error(X509_R_UNKNOWN_NID); return (NULL); } ret = X509_EXTENSION_create_by_OBJ(ex, obj, crit, data); if (ret == NULL) ASN1_OBJECT_free(obj); return (ret); } LCRYPTO_ALIAS(X509_EXTENSION_create_by_NID) X509_EXTENSION * X509_EXTENSION_create_by_OBJ(X509_EXTENSION **ex, const ASN1_OBJECT *obj, int crit, ASN1_OCTET_STRING *data) { X509_EXTENSION *ret; if ((ex == NULL) || (*ex == NULL)) { if ((ret = X509_EXTENSION_new()) == NULL) { X509error(ERR_R_MALLOC_FAILURE); return (NULL); } } else ret= *ex; if (!X509_EXTENSION_set_object(ret, obj)) goto err; if (!X509_EXTENSION_set_critical(ret, crit)) goto err; if (!X509_EXTENSION_set_data(ret, data)) goto err; if ((ex != NULL) && (*ex == NULL)) *ex = ret; return (ret); err: if ((ex == NULL) || (ret != *ex)) X509_EXTENSION_free(ret); return (NULL); } LCRYPTO_ALIAS(X509_EXTENSION_create_by_OBJ) int X509_EXTENSION_set_object(X509_EXTENSION *ex, const ASN1_OBJECT *obj) { if ((ex == NULL) || (obj == NULL)) return (0); ASN1_OBJECT_free(ex->object); ex->object = OBJ_dup(obj); return ex->object != NULL; } LCRYPTO_ALIAS(X509_EXTENSION_set_object) int X509_EXTENSION_set_critical(X509_EXTENSION *ex, int crit) { if (ex == NULL) return (0); ex->critical = (crit) ? 0xFF : -1; return (1); } LCRYPTO_ALIAS(X509_EXTENSION_set_critical) int X509_EXTENSION_set_data(X509_EXTENSION *ex, ASN1_OCTET_STRING *data) { int i; if (ex == NULL) return (0); i = ASN1_STRING_set(ex->value, data->data, data->length); if (!i) return (0); return (1); } LCRYPTO_ALIAS(X509_EXTENSION_set_data) ASN1_OBJECT * X509_EXTENSION_get_object(X509_EXTENSION *ex) { if (ex == NULL) return (NULL); return (ex->object); } LCRYPTO_ALIAS(X509_EXTENSION_get_object) ASN1_OCTET_STRING * X509_EXTENSION_get_data(X509_EXTENSION *ex) { if (ex == NULL) return (NULL); return (ex->value); } LCRYPTO_ALIAS(X509_EXTENSION_get_data) int X509_EXTENSION_get_critical(const X509_EXTENSION *ex) { if (ex == NULL) return (0); if (ex->critical > 0) return 1; return 0; } LCRYPTO_ALIAS(X509_EXTENSION_get_critical)