/* $OpenBSD: x509_v3.c,v 1.43 2024/07/12 09:57:04 tb 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 "x509_local.h" int X509v3_get_ext_count(const STACK_OF(X509_EXTENSION) *exts) { if (exts == NULL) return 0; return sk_X509_EXTENSION_num(exts); } LCRYPTO_ALIAS(X509v3_get_ext_count); int X509v3_get_ext_by_NID(const STACK_OF(X509_EXTENSION) *exts, int nid, int lastpos) { const ASN1_OBJECT *obj; if ((obj = OBJ_nid2obj(nid)) == NULL) return -2; return X509v3_get_ext_by_OBJ(exts, obj, lastpos); } LCRYPTO_ALIAS(X509v3_get_ext_by_NID); int X509v3_get_ext_by_OBJ(const STACK_OF(X509_EXTENSION) *exts, const ASN1_OBJECT *obj, int lastpos) { if (++lastpos < 0) lastpos = 0; for (; lastpos < X509v3_get_ext_count(exts); lastpos++) { const X509_EXTENSION *ext = X509v3_get_ext(exts, lastpos); if (OBJ_cmp(ext->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) *exts, int critical, int lastpos) { critical = (critical != 0); if (++lastpos < 0) lastpos = 0; for (; lastpos < X509v3_get_ext_count(exts); lastpos++) { const X509_EXTENSION *ext = X509v3_get_ext(exts, lastpos); if (X509_EXTENSION_get_critical(ext) == critical) return lastpos; } return -1; } LCRYPTO_ALIAS(X509v3_get_ext_by_critical); X509_EXTENSION * X509v3_get_ext(const STACK_OF(X509_EXTENSION) *exts, int loc) { return sk_X509_EXTENSION_value(exts, loc); } LCRYPTO_ALIAS(X509v3_get_ext); X509_EXTENSION * X509v3_delete_ext(STACK_OF(X509_EXTENSION) *exts, int loc) { return sk_X509_EXTENSION_delete(exts, loc); } LCRYPTO_ALIAS(X509v3_delete_ext); STACK_OF(X509_EXTENSION) * X509v3_add_ext(STACK_OF(X509_EXTENSION) **out_exts, X509_EXTENSION *ext, int loc) { STACK_OF(X509_EXTENSION) *exts = NULL; X509_EXTENSION *new_ext = NULL; /* * XXX - Nonsense from the poorly reviewed OpenSSL c755c5fd8ba (2005). * This check should have been joined with the next check, i.e., if no * stack was passed in, a new one should be created and returned. */ if (out_exts == NULL) { X509error(ERR_R_PASSED_NULL_PARAMETER); goto err; } if ((exts = *out_exts) == NULL) exts = sk_X509_EXTENSION_new_null(); if (exts == NULL) { X509error(ERR_R_MALLOC_FAILURE); goto err; } if ((new_ext = X509_EXTENSION_dup(ext)) == NULL) goto err; if (!sk_X509_EXTENSION_insert(exts, new_ext, loc)) goto err; new_ext = NULL; *out_exts = exts; return exts; err: X509_EXTENSION_free(new_ext); if (out_exts != NULL && exts != *out_exts) sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free); return NULL; } LCRYPTO_ALIAS(X509v3_add_ext); X509_EXTENSION * X509_EXTENSION_create_by_NID(X509_EXTENSION **out_ext, int nid, int critical, ASN1_OCTET_STRING *data) { const ASN1_OBJECT *obj; if ((obj = OBJ_nid2obj(nid)) == NULL) { X509error(X509_R_UNKNOWN_NID); return NULL; } return X509_EXTENSION_create_by_OBJ(out_ext, obj, critical, data); } LCRYPTO_ALIAS(X509_EXTENSION_create_by_NID); X509_EXTENSION * X509_EXTENSION_create_by_OBJ(X509_EXTENSION **out_ext, const ASN1_OBJECT *obj, int critical, ASN1_OCTET_STRING *data) { X509_EXTENSION *ext; if (out_ext == NULL || (ext = *out_ext) == NULL) ext = X509_EXTENSION_new(); if (ext == NULL) { X509error(ERR_R_MALLOC_FAILURE); goto err; } if (!X509_EXTENSION_set_object(ext, obj)) goto err; if (!X509_EXTENSION_set_critical(ext, critical)) goto err; if (!X509_EXTENSION_set_data(ext, data)) goto err; if (out_ext != NULL) *out_ext = ext; return ext; err: if (out_ext == NULL || ext != *out_ext) X509_EXTENSION_free(ext); return NULL; } LCRYPTO_ALIAS(X509_EXTENSION_create_by_OBJ); int X509_EXTENSION_set_object(X509_EXTENSION *ext, const ASN1_OBJECT *obj) { if (ext == NULL || obj == NULL) return 0; ASN1_OBJECT_free(ext->object); return (ext->object = OBJ_dup(obj)) != NULL; } LCRYPTO_ALIAS(X509_EXTENSION_set_object); int X509_EXTENSION_set_critical(X509_EXTENSION *ext, int critical) { if (ext == NULL) return 0; ext->critical = critical ? 0xFF : -1; return 1; } LCRYPTO_ALIAS(X509_EXTENSION_set_critical); int X509_EXTENSION_set_data(X509_EXTENSION *ext, ASN1_OCTET_STRING *data) { if (ext == NULL) return 0; return ASN1_STRING_set(ext->value, data->data, data->length); } LCRYPTO_ALIAS(X509_EXTENSION_set_data); ASN1_OBJECT * X509_EXTENSION_get_object(X509_EXTENSION *ext) { if (ext == NULL) return NULL; return ext->object; } LCRYPTO_ALIAS(X509_EXTENSION_get_object); ASN1_OCTET_STRING * X509_EXTENSION_get_data(X509_EXTENSION *ext) { if (ext == NULL) return NULL; return ext->value; } LCRYPTO_ALIAS(X509_EXTENSION_get_data); int X509_EXTENSION_get_critical(const X509_EXTENSION *ext) { if (ext == NULL) return 0; return ext->critical > 0; } LCRYPTO_ALIAS(X509_EXTENSION_get_critical);