From 690af28bdf827ab9c81648f507eb492c9076d5d3 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Wed, 25 Oct 2000 15:23:17 +0000 Subject: This commit was manufactured by cvs2git to create branch 'OPENBSD_2_8'. --- src/lib/libcrypto/x509v3/v3_purp.c | 463 ------------------------------------- 1 file changed, 463 deletions(-) delete mode 100644 src/lib/libcrypto/x509v3/v3_purp.c (limited to 'src/lib/libcrypto/x509v3/v3_purp.c') diff --git a/src/lib/libcrypto/x509v3/v3_purp.c b/src/lib/libcrypto/x509v3/v3_purp.c deleted file mode 100644 index 5594a1d64f..0000000000 --- a/src/lib/libcrypto/x509v3/v3_purp.c +++ /dev/null @@ -1,463 +0,0 @@ -/* v3_purp.c */ -/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL - * project 1999. - */ -/* ==================================================================== - * Copyright (c) 1999 The OpenSSL Project. All rights reserved. - * - * 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 above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#include -#include "cryptlib.h" -#include - - -static void x509v3_cache_extensions(X509 *x); - -static int ca_check(X509 *x); -static int check_purpose_ssl_client(X509_PURPOSE *xp, X509 *x, int ca); -static int check_purpose_ssl_server(X509_PURPOSE *xp, X509 *x, int ca); -static int check_purpose_ns_ssl_server(X509_PURPOSE *xp, X509 *x, int ca); -static int purpose_smime(X509 *x, int ca); -static int check_purpose_smime_sign(X509_PURPOSE *xp, X509 *x, int ca); -static int check_purpose_smime_encrypt(X509_PURPOSE *xp, X509 *x, int ca); -static int check_purpose_crl_sign(X509_PURPOSE *xp, X509 *x, int ca); -static int no_check(X509_PURPOSE *xp, X509 *x, int ca); - -static int xp_cmp(X509_PURPOSE **a, X509_PURPOSE **b); -static void xptable_free(X509_PURPOSE *p); - -static X509_PURPOSE xstandard[] = { - {X509_PURPOSE_SSL_CLIENT, X509_TRUST_SSL_CLIENT, 0, check_purpose_ssl_client, "SSL client", "sslclient", NULL}, - {X509_PURPOSE_SSL_SERVER, X509_TRUST_SSL_SERVER, 0, check_purpose_ssl_server, "SSL server", "sslserver", NULL}, - {X509_PURPOSE_NS_SSL_SERVER, X509_TRUST_SSL_SERVER, 0, check_purpose_ns_ssl_server, "Netscape SSL server", "nssslserver", NULL}, - {X509_PURPOSE_SMIME_SIGN, X509_TRUST_EMAIL, 0, check_purpose_smime_sign, "S/MIME signing", "smimesign", NULL}, - {X509_PURPOSE_SMIME_ENCRYPT, X509_TRUST_EMAIL, 0, check_purpose_smime_encrypt, "S/MIME encryption", "smimeencrypt", NULL}, - {X509_PURPOSE_CRL_SIGN, X509_TRUST_COMPAT, 0, check_purpose_crl_sign, "CRL signing", "crlsign", NULL}, - {X509_PURPOSE_ANY, X509_TRUST_DEFAULT, 0, no_check, "Any Purpose", "any", NULL}, -}; - -#define X509_PURPOSE_COUNT (sizeof(xstandard)/sizeof(X509_PURPOSE)) - -IMPLEMENT_STACK_OF(X509_PURPOSE) - -static STACK_OF(X509_PURPOSE) *xptable = NULL; - -static int xp_cmp(X509_PURPOSE **a, X509_PURPOSE **b) -{ - return (*a)->purpose - (*b)->purpose; -} - -int X509_check_purpose(X509 *x, int id, int ca) -{ - int idx; - X509_PURPOSE *pt; - if(!(x->ex_flags & EXFLAG_SET)) { - CRYPTO_w_lock(CRYPTO_LOCK_X509); - x509v3_cache_extensions(x); - CRYPTO_w_unlock(CRYPTO_LOCK_X509); - } - if(id == -1) return 1; - idx = X509_PURPOSE_get_by_id(id); - if(idx == -1) return -1; - pt = X509_PURPOSE_get0(idx); - return pt->check_purpose(pt, x, ca); -} - -int X509_PURPOSE_get_count(void) -{ - if(!xptable) return X509_PURPOSE_COUNT; - return sk_X509_PURPOSE_num(xptable) + X509_PURPOSE_COUNT; -} - -X509_PURPOSE * X509_PURPOSE_get0(int idx) -{ - if(idx < 0) return NULL; - if(idx < X509_PURPOSE_COUNT) return xstandard + idx; - return sk_X509_PURPOSE_value(xptable, idx - X509_PURPOSE_COUNT); -} - -int X509_PURPOSE_get_by_sname(char *sname) -{ - int i; - X509_PURPOSE *xptmp; - for(i = 0; i < X509_PURPOSE_get_count(); i++) { - xptmp = X509_PURPOSE_get0(i); - if(!strcmp(xptmp->sname, sname)) return i; - } - return -1; -} - - -int X509_PURPOSE_get_by_id(int purpose) -{ - X509_PURPOSE tmp; - int idx; - if((purpose >= X509_PURPOSE_MIN) && (purpose <= X509_PURPOSE_MAX)) - return purpose - X509_PURPOSE_MIN; - tmp.purpose = purpose; - if(!xptable) return -1; - idx = sk_X509_PURPOSE_find(xptable, &tmp); - if(idx == -1) return -1; - return idx + X509_PURPOSE_COUNT; -} - -int X509_PURPOSE_add(int id, int trust, int flags, - int (*ck)(X509_PURPOSE *, X509 *, int), - char *name, char *sname, void *arg) -{ - int idx; - X509_PURPOSE *ptmp; - /* This is set according to what we change: application can't set it */ - flags &= ~X509_PURPOSE_DYNAMIC; - /* This will always be set for application modified trust entries */ - flags |= X509_PURPOSE_DYNAMIC_NAME; - /* Get existing entry if any */ - idx = X509_PURPOSE_get_by_id(id); - /* Need a new entry */ - if(idx == -1) { - if(!(ptmp = Malloc(sizeof(X509_PURPOSE)))) { - X509V3err(X509V3_F_X509_PURPOSE_ADD,ERR_R_MALLOC_FAILURE); - return 0; - } - ptmp->flags = X509_PURPOSE_DYNAMIC; - } else ptmp = X509_PURPOSE_get0(idx); - - /* Free existing name if dynamic */ - if(ptmp->flags & X509_PURPOSE_DYNAMIC_NAME) { - Free(ptmp->name); - Free(ptmp->sname); - } - /* dup supplied name */ - ptmp->name = BUF_strdup(name); - ptmp->sname = BUF_strdup(sname); - if(!ptmp->name || !ptmp->sname) { - X509V3err(X509V3_F_X509_PURPOSE_ADD,ERR_R_MALLOC_FAILURE); - return 0; - } - /* Keep the dynamic flag of existing entry */ - ptmp->flags &= X509_PURPOSE_DYNAMIC; - /* Set all other flags */ - ptmp->flags |= flags; - - ptmp->purpose = id; - ptmp->trust = trust; - ptmp->check_purpose = ck; - ptmp->usr_data = arg; - - /* If its a new entry manage the dynamic table */ - if(idx == -1) { - if(!xptable && !(xptable = sk_X509_PURPOSE_new(xp_cmp))) { - X509V3err(X509V3_F_X509_PURPOSE_ADD,ERR_R_MALLOC_FAILURE); - return 0; - } - if (!sk_X509_PURPOSE_push(xptable, ptmp)) { - X509V3err(X509V3_F_X509_PURPOSE_ADD,ERR_R_MALLOC_FAILURE); - return 0; - } - } - return 1; -} - -static void xptable_free(X509_PURPOSE *p) - { - if(!p) return; - if (p->flags & X509_PURPOSE_DYNAMIC) - { - if (p->flags & X509_PURPOSE_DYNAMIC_NAME) { - Free(p->name); - Free(p->sname); - } - Free(p); - } - } - -void X509_PURPOSE_cleanup(void) -{ - int i; - sk_X509_PURPOSE_pop_free(xptable, xptable_free); - for(i = 0; i < X509_PURPOSE_COUNT; i++) xptable_free(xstandard + i); - xptable = NULL; -} - -int X509_PURPOSE_get_id(X509_PURPOSE *xp) -{ - return xp->purpose; -} - -char *X509_PURPOSE_get0_name(X509_PURPOSE *xp) -{ - return xp->name; -} - -char *X509_PURPOSE_get0_sname(X509_PURPOSE *xp) -{ - return xp->sname; -} - -int X509_PURPOSE_get_trust(X509_PURPOSE *xp) -{ - return xp->trust; -} - -#ifndef NO_SHA -static void x509v3_cache_extensions(X509 *x) -{ - BASIC_CONSTRAINTS *bs; - ASN1_BIT_STRING *usage; - ASN1_BIT_STRING *ns; - STACK_OF(ASN1_OBJECT) *extusage; - int i; - if(x->ex_flags & EXFLAG_SET) return; - X509_digest(x, EVP_sha1(), x->sha1_hash, NULL); - /* Does subject name match issuer ? */ - if(!X509_NAME_cmp(X509_get_subject_name(x), X509_get_issuer_name(x))) - x->ex_flags |= EXFLAG_SS; - /* V1 should mean no extensions ... */ - if(!X509_get_version(x)) x->ex_flags |= EXFLAG_V1; - /* Handle basic constraints */ - if((bs=X509_get_ext_d2i(x, NID_basic_constraints, NULL, NULL))) { - if(bs->ca) x->ex_flags |= EXFLAG_CA; - if(bs->pathlen) { - if((bs->pathlen->type == V_ASN1_NEG_INTEGER) - || !bs->ca) { - x->ex_flags |= EXFLAG_INVALID; - x->ex_pathlen = 0; - } else x->ex_pathlen = ASN1_INTEGER_get(bs->pathlen); - } else x->ex_pathlen = -1; - BASIC_CONSTRAINTS_free(bs); - x->ex_flags |= EXFLAG_BCONS; - } - /* Handle key usage */ - if((usage=X509_get_ext_d2i(x, NID_key_usage, NULL, NULL))) { - if(usage->length > 0) { - x->ex_kusage = usage->data[0]; - if(usage->length > 1) - x->ex_kusage |= usage->data[1] << 8; - } else x->ex_kusage = 0; - x->ex_flags |= EXFLAG_KUSAGE; - ASN1_BIT_STRING_free(usage); - } - x->ex_xkusage = 0; - if((extusage=X509_get_ext_d2i(x, NID_ext_key_usage, NULL, NULL))) { - x->ex_flags |= EXFLAG_XKUSAGE; - for(i = 0; i < sk_ASN1_OBJECT_num(extusage); i++) { - switch(OBJ_obj2nid(sk_ASN1_OBJECT_value(extusage,i))) { - case NID_server_auth: - x->ex_xkusage |= XKU_SSL_SERVER; - break; - - case NID_client_auth: - x->ex_xkusage |= XKU_SSL_CLIENT; - break; - - case NID_email_protect: - x->ex_xkusage |= XKU_SMIME; - break; - - case NID_code_sign: - x->ex_xkusage |= XKU_CODE_SIGN; - break; - - case NID_ms_sgc: - case NID_ns_sgc: - x->ex_xkusage |= XKU_SGC; - } - } - sk_ASN1_OBJECT_pop_free(extusage, ASN1_OBJECT_free); - } - - if((ns=X509_get_ext_d2i(x, NID_netscape_cert_type, NULL, NULL))) { - if(ns->length > 0) x->ex_nscert = ns->data[0]; - else x->ex_nscert = 0; - x->ex_flags |= EXFLAG_NSCERT; - ASN1_BIT_STRING_free(ns); - } - x->ex_flags |= EXFLAG_SET; -} -#endif - -/* CA checks common to all purposes - * return codes: - * 0 not a CA - * 1 is a CA - * 2 basicConstraints absent so "maybe" a CA - * 3 basicConstraints absent but self signed V1. - */ - -#define V1_ROOT (EXFLAG_V1|EXFLAG_SS) -#define ku_reject(x, usage) \ - (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) -#define xku_reject(x, usage) \ - (((x)->ex_flags & EXFLAG_XKUSAGE) && !((x)->ex_xkusage & (usage))) -#define ns_reject(x, usage) \ - (((x)->ex_flags & EXFLAG_NSCERT) && !((x)->ex_nscert & (usage))) - -static int ca_check(X509 *x) -{ - /* keyUsage if present should allow cert signing */ - if(ku_reject(x, KU_KEY_CERT_SIGN)) return 0; - if(x->ex_flags & EXFLAG_BCONS) { - if(x->ex_flags & EXFLAG_CA) return 1; - /* If basicConstraints says not a CA then say so */ - else return 0; - } else { - if((x->ex_flags & V1_ROOT) == V1_ROOT) return 3; - else return 2; - } -} - - -static int check_purpose_ssl_client(X509_PURPOSE *xp, X509 *x, int ca) -{ - if(xku_reject(x,XKU_SSL_CLIENT)) return 0; - if(ca) { - int ca_ret; - ca_ret = ca_check(x); - if(!ca_ret) return 0; - /* check nsCertType if present */ - if(x->ex_flags & EXFLAG_NSCERT) { - if(x->ex_nscert & NS_SSL_CA) return ca_ret; - return 0; - } - if(ca_ret != 2) return ca_ret; - else return 0; - } - /* We need to do digital signatures with it */ - if(ku_reject(x,KU_DIGITAL_SIGNATURE)) return 0; - /* nsCertType if present should allow SSL client use */ - if(ns_reject(x, NS_SSL_CLIENT)) return 0; - return 1; -} - -static int check_purpose_ssl_server(X509_PURPOSE *xp, X509 *x, int ca) -{ - if(xku_reject(x,XKU_SSL_SERVER|XKU_SGC)) return 0; - /* Otherwise same as SSL client for a CA */ - if(ca) return check_purpose_ssl_client(xp, x, 1); - - if(ns_reject(x, NS_SSL_SERVER)) return 0; - /* Now as for keyUsage: we'll at least need to sign OR encipher */ - if(ku_reject(x, KU_DIGITAL_SIGNATURE|KU_KEY_ENCIPHERMENT)) return 0; - - return 1; - -} - -static int check_purpose_ns_ssl_server(X509_PURPOSE *xp, X509 *x, int ca) -{ - int ret; - ret = check_purpose_ssl_server(xp, x, ca); - if(!ret || ca) return ret; - /* We need to encipher or Netscape complains */ - if(ku_reject(x, KU_KEY_ENCIPHERMENT)) return 0; - return ret; -} - -/* common S/MIME checks */ -static int purpose_smime(X509 *x, int ca) -{ - if(xku_reject(x,XKU_SMIME)) return 0; - if(ca) { - int ca_ret; - ca_ret = ca_check(x); - if(!ca_ret) return 0; - /* check nsCertType if present */ - if(x->ex_flags & EXFLAG_NSCERT) { - if(x->ex_nscert & NS_SMIME_CA) return ca_ret; - return 0; - } - if(ca_ret != 2) return ca_ret; - else return 0; - } - if(x->ex_flags & EXFLAG_NSCERT) { - if(x->ex_nscert & NS_SMIME) return 1; - /* Workaround for some buggy certificates */ - if(x->ex_nscert & NS_SSL_CLIENT) return 2; - return 0; - } - return 1; -} - -static int check_purpose_smime_sign(X509_PURPOSE *xp, X509 *x, int ca) -{ - int ret; - ret = purpose_smime(x, ca); - if(!ret || ca) return ret; - if(ku_reject(x, KU_DIGITAL_SIGNATURE)) return 0; - return ret; -} - -static int check_purpose_smime_encrypt(X509_PURPOSE *xp, X509 *x, int ca) -{ - int ret; - ret = purpose_smime(x, ca); - if(!ret || ca) return ret; - if(ku_reject(x, KU_KEY_ENCIPHERMENT)) return 0; - return ret; -} - -static int check_purpose_crl_sign(X509_PURPOSE *xp, X509 *x, int ca) -{ - if(ca) { - int ca_ret; - if((ca_ret = ca_check(x)) != 2) return ca_ret; - else return 0; - } - if(ku_reject(x, KU_CRL_SIGN)) return 0; - return 1; -} - -static int no_check(X509_PURPOSE *xp, X509 *x, int ca) -{ - return 1; -} -- cgit v1.2.3-55-g6feb