diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/ocsp/ocsp_ext.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/ocsp/ocsp_ext.c | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/ocsp/ocsp_ext.c b/openssl-1.1.0h/crypto/ocsp/ocsp_ext.c new file mode 100644 index 0000000..b829b2e --- /dev/null +++ b/openssl-1.1.0h/crypto/ocsp/ocsp_ext.c @@ -0,0 +1,472 @@ +/* + * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/objects.h> +#include <openssl/x509.h> +#include <openssl/ocsp.h> +#include "ocsp_lcl.h" +#include <openssl/rand.h> +#include <openssl/x509v3.h> + +/* 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, const 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, const 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, const 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, const 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 */ + +/* Nonce handling functions */ + +/* + * Add a nonce to an extension stack. A nonce can be specified 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); + if (os.length < 0) + return 0; + + 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 if (RAND_bytes(tmpval, len) <= 0) + goto err; + if (!X509V3_add1_i2d(exts, NID_id_pkix_OCSP_Nonce, + &os, 0, X509V3_ADD_REPLACE)) + goto err; + ret = 1; + err: + 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(X509_EXTENSION_get_data(req_ext), + X509_EXTENSION_get_data(resp_ext))) + 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(const char *url, long *n, char *tim) +{ + X509_EXTENSION *x = NULL; + OCSP_CRLID *cid = NULL; + + if ((cid = OCSP_CRLID_new()) == NULL) + goto err; + if (url) { + if ((cid->crlUrl = ASN1_IA5STRING_new()) == NULL) + goto err; + if (!(ASN1_STRING_set(cid->crlUrl, url, -1))) + goto err; + } + if (n) { + if ((cid->crlNum = ASN1_INTEGER_new()) == NULL) + goto err; + if (!(ASN1_INTEGER_set(cid->crlNum, *n))) + goto err; + } + if (tim) { + if ((cid->crlTime = ASN1_GENERALIZEDTIME_new()) == NULL) + goto err; + if (!(ASN1_GENERALIZEDTIME_set_string(cid->crlTime, tim))) + goto err; + } + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_CrlID, 0, cid); + err: + 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()) == 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: + 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()) == NULL) + goto err; + if (!(ASN1_GENERALIZEDTIME_set_string(gt, tim))) + goto err; + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_archiveCutoff, 0, gt); + err: + 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, const char **urls) +{ + X509_EXTENSION *x = NULL; + ASN1_IA5STRING *ia5 = NULL; + OCSP_SERVICELOC *sloc = NULL; + ACCESS_DESCRIPTION *ad = NULL; + + if ((sloc = OCSP_SERVICELOC_new()) == NULL) + goto err; + if ((sloc->issuer = X509_NAME_dup(issuer)) == NULL) + goto err; + if (urls && *urls + && (sloc->locator = sk_ACCESS_DESCRIPTION_new_null()) == NULL) + goto err; + while (urls && *urls) { + if ((ad = ACCESS_DESCRIPTION_new()) == NULL) + goto err; + if ((ad->method = OBJ_nid2obj(NID_ad_OCSP)) == NULL) + goto err; + if ((ad->location = GENERAL_NAME_new()) == NULL) + goto err; + if ((ia5 = ASN1_IA5STRING_new()) == NULL) + goto err; + if (!ASN1_STRING_set((ASN1_STRING *)ia5, *urls, -1)) + goto err; + ad->location->type = GEN_URI; + ad->location->d.ia5 = ia5; + ia5 = NULL; + if (!sk_ACCESS_DESCRIPTION_push(sloc->locator, ad)) + goto err; + ad = NULL; + urls++; + } + x = X509V3_EXT_i2d(NID_id_pkix_OCSP_serviceLocator, 0, sloc); + err: + ASN1_IA5STRING_free(ia5); + ACCESS_DESCRIPTION_free(ad); + OCSP_SERVICELOC_free(sloc); + return x; +} |