From 3e4d8f433239c40311037616b1b8833a06651ae0 Mon Sep 17 00:00:00 2001 From: Arne Schwabe Date: Mon, 16 Apr 2012 19:21:14 +0200 Subject: Initial import --- openssl/crypto/ocsp/ocsp_ext.c | 518 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 518 insertions(+) create mode 100644 openssl/crypto/ocsp/ocsp_ext.c (limited to 'openssl/crypto/ocsp/ocsp_ext.c') diff --git a/openssl/crypto/ocsp/ocsp_ext.c b/openssl/crypto/ocsp/ocsp_ext.c new file mode 100644 index 00000000..ec884cb0 --- /dev/null +++ b/openssl/crypto/ocsp/ocsp_ext.c @@ -0,0 +1,518 @@ +/* ocsp_ext.c */ +/* Written by Tom Titchener for the OpenSSL + * project. */ + +/* History: + This file was transfered to Richard Levitte from CertCo by Kathy + Weinhold in mid-spring 2000 to be included in OpenSSL or released + as a patch kit. */ + +/* ==================================================================== + * Copyright (c) 1998-2000 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 + * openssl-core@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 +#include +#include +#include +#include +#include + +/* Standard wrapper functions for extensions */ + +/* OCSP request extensions */ + +int OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x) + { + return(X509v3_get_ext_count(x->tbsRequest->requestExtensions)); + } + +int OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos) + { + return(X509v3_get_ext_by_NID(x->tbsRequest->requestExtensions,nid,lastpos)); + } + +int OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST *x, ASN1_OBJECT *obj, int lastpos) + { + return(X509v3_get_ext_by_OBJ(x->tbsRequest->requestExtensions,obj,lastpos)); + } + +int OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos) + { + return(X509v3_get_ext_by_critical(x->tbsRequest->requestExtensions,crit,lastpos)); + } + +X509_EXTENSION *OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc) + { + return(X509v3_get_ext(x->tbsRequest->requestExtensions,loc)); + } + +X509_EXTENSION *OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc) + { + return(X509v3_delete_ext(x->tbsRequest->requestExtensions,loc)); + } + +void *OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST *x, int nid, int *crit, int *idx) + { + return X509V3_get_d2i(x->tbsRequest->requestExtensions, nid, crit, idx); + } + +int OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST *x, int nid, void *value, int crit, + unsigned long flags) + { + return X509V3_add1_i2d(&x->tbsRequest->requestExtensions, nid, value, crit, flags); + } + +int OCSP_REQUEST_add_ext(OCSP_REQUEST *x, X509_EXTENSION *ex, int loc) + { + return(X509v3_add_ext(&(x->tbsRequest->requestExtensions),ex,loc) != NULL); + } + +/* Single extensions */ + +int OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x) + { + return(X509v3_get_ext_count(x->singleRequestExtensions)); + } + +int OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos) + { + return(X509v3_get_ext_by_NID(x->singleRequestExtensions,nid,lastpos)); + } + +int OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ *x, ASN1_OBJECT *obj, int lastpos) + { + return(X509v3_get_ext_by_OBJ(x->singleRequestExtensions,obj,lastpos)); + } + +int OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos) + { + return(X509v3_get_ext_by_critical(x->singleRequestExtensions,crit,lastpos)); + } + +X509_EXTENSION *OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc) + { + return(X509v3_get_ext(x->singleRequestExtensions,loc)); + } + +X509_EXTENSION *OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc) + { + return(X509v3_delete_ext(x->singleRequestExtensions,loc)); + } + +void *OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ *x, int nid, int *crit, int *idx) + { + return X509V3_get_d2i(x->singleRequestExtensions, nid, crit, idx); + } + +int OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ *x, int nid, void *value, int crit, + unsigned long flags) + { + return X509V3_add1_i2d(&x->singleRequestExtensions, nid, value, crit, flags); + } + +int OCSP_ONEREQ_add_ext(OCSP_ONEREQ *x, X509_EXTENSION *ex, int loc) + { + return(X509v3_add_ext(&(x->singleRequestExtensions),ex,loc) != NULL); + } + +/* OCSP Basic response */ + +int OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x) + { + return(X509v3_get_ext_count(x->tbsResponseData->responseExtensions)); + } + +int OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos) + { + return(X509v3_get_ext_by_NID(x->tbsResponseData->responseExtensions,nid,lastpos)); + } + +int OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP *x, ASN1_OBJECT *obj, int lastpos) + { + return(X509v3_get_ext_by_OBJ(x->tbsResponseData->responseExtensions,obj,lastpos)); + } + +int OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit, int lastpos) + { + return(X509v3_get_ext_by_critical(x->tbsResponseData->responseExtensions,crit,lastpos)); + } + +X509_EXTENSION *OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc) + { + return(X509v3_get_ext(x->tbsResponseData->responseExtensions,loc)); + } + +X509_EXTENSION *OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc) + { + return(X509v3_delete_ext(x->tbsResponseData->responseExtensions,loc)); + } + +void *OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP *x, int nid, int *crit, int *idx) + { + return X509V3_get_d2i(x->tbsResponseData->responseExtensions, nid, crit, idx); + } + +int OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP *x, int nid, void *value, int crit, + unsigned long flags) + { + return X509V3_add1_i2d(&x->tbsResponseData->responseExtensions, nid, value, crit, flags); + } + +int OCSP_BASICRESP_add_ext(OCSP_BASICRESP *x, X509_EXTENSION *ex, int loc) + { + return(X509v3_add_ext(&(x->tbsResponseData->responseExtensions),ex,loc) != NULL); + } + +/* OCSP single response extensions */ + +int OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x) + { + return(X509v3_get_ext_count(x->singleExtensions)); + } + +int OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos) + { + return(X509v3_get_ext_by_NID(x->singleExtensions,nid,lastpos)); + } + +int OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP *x, ASN1_OBJECT *obj, int lastpos) + { + return(X509v3_get_ext_by_OBJ(x->singleExtensions,obj,lastpos)); + } + +int OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit, int lastpos) + { + return(X509v3_get_ext_by_critical(x->singleExtensions,crit,lastpos)); + } + +X509_EXTENSION *OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc) + { + return(X509v3_get_ext(x->singleExtensions,loc)); + } + +X509_EXTENSION *OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc) + { + return(X509v3_delete_ext(x->singleExtensions,loc)); + } + +void *OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP *x, int nid, int *crit, int *idx) + { + return X509V3_get_d2i(x->singleExtensions, nid, crit, idx); + } + +int OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP *x, int nid, void *value, int crit, + unsigned long flags) + { + return X509V3_add1_i2d(&x->singleExtensions, nid, value, crit, flags); + } + +int OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP *x, X509_EXTENSION *ex, int loc) + { + return(X509v3_add_ext(&(x->singleExtensions),ex,loc) != NULL); + } + +/* also CRL Entry Extensions */ +#if 0 +ASN1_STRING *ASN1_STRING_encode(ASN1_STRING *s, i2d_of_void *i2d, + void *data, STACK_OF(ASN1_OBJECT) *sk) + { + int i; + unsigned char *p, *b = NULL; + + if (data) + { + if ((i=i2d(data,NULL)) <= 0) goto err; + if (!(b=p=OPENSSL_malloc((unsigned int)i))) + goto err; + if (i2d(data, &p) <= 0) goto err; + } + else if (sk) + { + if ((i=i2d_ASN1_SET_OF_ASN1_OBJECT(sk,NULL, + (I2D_OF(ASN1_OBJECT))i2d, + V_ASN1_SEQUENCE, + V_ASN1_UNIVERSAL, + IS_SEQUENCE))<=0) goto err; + if (!(b=p=OPENSSL_malloc((unsigned int)i))) + goto err; + if (i2d_ASN1_SET_OF_ASN1_OBJECT(sk,&p,(I2D_OF(ASN1_OBJECT))i2d, + V_ASN1_SEQUENCE, + V_ASN1_UNIVERSAL, + IS_SEQUENCE)<=0) goto err; + } + else + { + OCSPerr(OCSP_F_ASN1_STRING_ENCODE,OCSP_R_BAD_DATA); + goto err; + } + if (!s && !(s = ASN1_STRING_new())) goto err; + if (!(ASN1_STRING_set(s, b, i))) goto err; + OPENSSL_free(b); + return s; +err: + if (b) OPENSSL_free(b); + return NULL; + } +#endif + +/* Nonce handling functions */ + +/* Add a nonce to an extension stack. A nonce can be specificed or if NULL + * a random nonce will be generated. + * Note: OpenSSL 0.9.7d and later create an OCTET STRING containing the + * nonce, previous versions used the raw nonce. + */ + +static int ocsp_add1_nonce(STACK_OF(X509_EXTENSION) **exts, unsigned char *val, int len) + { + unsigned char *tmpval; + ASN1_OCTET_STRING os; + int ret = 0; + if (len <= 0) len = OCSP_DEFAULT_NONCE_LENGTH; + /* Create the OCTET STRING manually by writing out the header and + * appending the content octets. This avoids an extra memory allocation + * operation in some cases. Applications should *NOT* do this because + * it relies on library internals. + */ + os.length = ASN1_object_size(0, len, V_ASN1_OCTET_STRING); + os.data = OPENSSL_malloc(os.length); + if (os.data == NULL) + goto err; + tmpval = os.data; + ASN1_put_object(&tmpval, 0, len, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL); + if (val) + memcpy(tmpval, val, len); + else + RAND_pseudo_bytes(tmpval, len); + if(!X509V3_add1_i2d(exts, NID_id_pkix_OCSP_Nonce, + &os, 0, X509V3_ADD_REPLACE)) + goto err; + ret = 1; + err: + if (os.data) + OPENSSL_free(os.data); + return ret; + } + + +/* Add nonce to an OCSP request */ + +int OCSP_request_add1_nonce(OCSP_REQUEST *req, unsigned char *val, int len) + { + return ocsp_add1_nonce(&req->tbsRequest->requestExtensions, val, len); + } + +/* Same as above but for a response */ + +int OCSP_basic_add1_nonce(OCSP_BASICRESP *resp, unsigned char *val, int len) + { + return ocsp_add1_nonce(&resp->tbsResponseData->responseExtensions, val, len); + } + +/* Check nonce validity in a request and response. + * Return value reflects result: + * 1: nonces present and equal. + * 2: nonces both absent. + * 3: nonce present in response only. + * 0: nonces both present and not equal. + * -1: nonce in request only. + * + * For most responders clients can check return > 0. + * If responder doesn't handle nonces return != 0 may be + * necessary. return == 0 is always an error. + */ + +int OCSP_check_nonce(OCSP_REQUEST *req, OCSP_BASICRESP *bs) + { + /* + * Since we are only interested in the presence or absence of + * the nonce and comparing its value there is no need to use + * the X509V3 routines: this way we can avoid them allocating an + * ASN1_OCTET_STRING structure for the value which would be + * freed immediately anyway. + */ + + int req_idx, resp_idx; + X509_EXTENSION *req_ext, *resp_ext; + req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1); + resp_idx = OCSP_BASICRESP_get_ext_by_NID(bs, NID_id_pkix_OCSP_Nonce, -1); + /* Check both absent */ + if((req_idx < 0) && (resp_idx < 0)) + return 2; + /* Check in request only */ + if((req_idx >= 0) && (resp_idx < 0)) + return -1; + /* Check in response but not request */ + if((req_idx < 0) && (resp_idx >= 0)) + return 3; + /* Otherwise nonce in request and response so retrieve the extensions */ + req_ext = OCSP_REQUEST_get_ext(req, req_idx); + resp_ext = OCSP_BASICRESP_get_ext(bs, resp_idx); + if(ASN1_OCTET_STRING_cmp(req_ext->value, resp_ext->value)) + return 0; + return 1; + } + +/* Copy the nonce value (if any) from an OCSP request to + * a response. + */ + +int OCSP_copy_nonce(OCSP_BASICRESP *resp, OCSP_REQUEST *req) + { + X509_EXTENSION *req_ext; + int req_idx; + /* Check for nonce in request */ + req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1); + /* If no nonce that's OK */ + if (req_idx < 0) return 2; + req_ext = OCSP_REQUEST_get_ext(req, req_idx); + return OCSP_BASICRESP_add_ext(resp, req_ext, -1); + } + +X509_EXTENSION *OCSP_crlID_new(char *url, long *n, char *tim) + { + X509_EXTENSION *x = NULL; + OCSP_CRLID *cid = NULL; + + if (!(cid = OCSP_CRLID_new())) goto err; + if (url) + { + if (!(cid->crlUrl = ASN1_IA5STRING_new())) goto err; + if (!(ASN1_STRING_set(cid->crlUrl, url, -1))) goto err; + } + if (n) + { + if (!(cid->crlNum = ASN1_INTEGER_new())) goto err; + if (!(ASN1_INTEGER_set(cid->crlNum, *n))) goto err; + } + if (tim) + { + if (!(cid->crlTime = ASN1_GENERALIZEDTIME_new())) goto err; + if (!(ASN1_GENERALIZEDTIME_set_string(cid->crlTime, tim))) + goto err; + } + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_CrlID, 0, cid); +err: + if (cid) OCSP_CRLID_free(cid); + return x; + } + +/* AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER */ +X509_EXTENSION *OCSP_accept_responses_new(char **oids) + { + int nid; + STACK_OF(ASN1_OBJECT) *sk = NULL; + ASN1_OBJECT *o = NULL; + X509_EXTENSION *x = NULL; + + if (!(sk = sk_ASN1_OBJECT_new_null())) goto err; + while (oids && *oids) + { + if ((nid=OBJ_txt2nid(*oids))!=NID_undef&&(o=OBJ_nid2obj(nid))) + sk_ASN1_OBJECT_push(sk, o); + oids++; + } + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_acceptableResponses, 0, sk); +err: + if (sk) sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free); + return x; + } + +/* ArchiveCutoff ::= GeneralizedTime */ +X509_EXTENSION *OCSP_archive_cutoff_new(char* tim) + { + X509_EXTENSION *x=NULL; + ASN1_GENERALIZEDTIME *gt = NULL; + + if (!(gt = ASN1_GENERALIZEDTIME_new())) goto err; + if (!(ASN1_GENERALIZEDTIME_set_string(gt, tim))) goto err; + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_archiveCutoff, 0, gt); +err: + if (gt) ASN1_GENERALIZEDTIME_free(gt); + return x; + } + +/* per ACCESS_DESCRIPTION parameter are oids, of which there are currently + * two--NID_ad_ocsp, NID_id_ad_caIssuers--and GeneralName value. This + * method forces NID_ad_ocsp and uniformResourceLocator [6] IA5String. + */ +X509_EXTENSION *OCSP_url_svcloc_new(X509_NAME* issuer, char **urls) + { + X509_EXTENSION *x = NULL; + ASN1_IA5STRING *ia5 = NULL; + OCSP_SERVICELOC *sloc = NULL; + ACCESS_DESCRIPTION *ad = NULL; + + if (!(sloc = OCSP_SERVICELOC_new())) goto err; + if (!(sloc->issuer = X509_NAME_dup(issuer))) goto err; + if (urls && *urls && !(sloc->locator = sk_ACCESS_DESCRIPTION_new_null())) goto err; + while (urls && *urls) + { + if (!(ad = ACCESS_DESCRIPTION_new())) goto err; + if (!(ad->method=OBJ_nid2obj(NID_ad_OCSP))) goto err; + if (!(ad->location = GENERAL_NAME_new())) goto err; + if (!(ia5 = ASN1_IA5STRING_new())) goto err; + if (!ASN1_STRING_set((ASN1_STRING*)ia5, *urls, -1)) goto err; + ad->location->type = GEN_URI; + ad->location->d.ia5 = ia5; + if (!sk_ACCESS_DESCRIPTION_push(sloc->locator, ad)) goto err; + urls++; + } + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_serviceLocator, 0, sloc); +err: + if (sloc) OCSP_SERVICELOC_free(sloc); + return x; + } + -- cgit v1.2.3