/* ocsp_lib.c */
-/* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
- * project. */
+/*
+ * Written by Tom Titchener <Tom_Titchener@groove.net> 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. */
+/*
+ * 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.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
#include <stdio.h>
#include <cryptlib.h>
#include <openssl/objects.h>
+#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
-#include <openssl/safestack.h>
#include <openssl/ocsp.h>
+#include "ocsp_lcl.h"
+#include <openssl/asn1t.h>
+
+/* Convert a certificate and its issuer to an OCSP_CERTID */
+
+OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer)
+{
+ X509_NAME *iname;
+ ASN1_INTEGER *serial;
+ ASN1_BIT_STRING *ikey;
+ if (!dgst)
+ dgst = EVP_sha1();
+ if (subject) {
+ iname = X509_get_issuer_name(subject);
+ serial = X509_get_serialNumber(subject);
+ } else {
+ iname = X509_get_subject_name(issuer);
+ serial = NULL;
+ }
+ ikey = X509_get0_pubkey_bitstr(issuer);
+ return OCSP_cert_id_new(dgst, iname, ikey, serial);
+}
+
+OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
+ X509_NAME *issuerName,
+ ASN1_BIT_STRING *issuerKey,
+ ASN1_INTEGER *serialNumber)
+{
+ int nid;
+ unsigned int i;
+ X509_ALGOR *alg;
+ OCSP_CERTID *cid = NULL;
+ unsigned char md[EVP_MAX_MD_SIZE];
+
+ if (!(cid = OCSP_CERTID_new()))
+ goto err;
+
+ alg = cid->hashAlgorithm;
+ ASN1_OBJECT_free(alg->algorithm);
+ if ((nid = EVP_MD_type(dgst)) == NID_undef) {
+ OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_UNKNOWN_NID);
+ goto err;
+ }
+ if (!(alg->algorithm = OBJ_nid2obj(nid)))
+ goto err;
+ if ((alg->parameter = ASN1_TYPE_new()) == NULL)
+ goto err;
+ alg->parameter->type = V_ASN1_NULL;
+
+ if (!X509_NAME_digest(issuerName, dgst, md, &i))
+ goto digerr;
+ if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i)))
+ goto err;
+
+ /* Calculate the issuerKey hash, excluding tag and length */
+ if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL))
+ goto err;
+
+ if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i)))
+ goto err;
+
+ if (serialNumber) {
+ ASN1_INTEGER_free(cid->serialNumber);
+ if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber)))
+ goto err;
+ }
+ return cid;
+ digerr:
+ OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_DIGEST_ERR);
+ err:
+ OCSP_CERTID_free(cid);
+ return NULL;
+}
+
+int OCSP_id_issuer_cmp(OCSP_CERTID *a, OCSP_CERTID *b)
+{
+ int ret;
+ ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm);
+ if (ret)
+ return ret;
+ ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash);
+ if (ret)
+ return ret;
+ return ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash);
+}
+
+int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b)
+{
+ int ret;
+ ret = OCSP_id_issuer_cmp(a, b);
+ if (ret)
+ return ret;
+ return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber);
+}
+
+/*
+ * Parse a URL and split it up into host, port and path components and
+ * whether it is SSL.
+ */
+
+int OCSP_parse_url(const char *url, char **phost, char **pport, char **ppath,
+ int *pssl)
+{
+ char *p, *buf;
+
+ char *host, *port;
+
+ *phost = NULL;
+ *pport = NULL;
+ *ppath = NULL;
+
+ /* dup the buffer since we are going to mess with it */
+ buf = BUF_strdup(url);
+ if (!buf)
+ goto mem_err;
+
+ /* Check for initial colon */
+ p = strchr(buf, ':');
+
+ if (!p)
+ goto parse_err;
+
+ *(p++) = '\0';
+
+ if (strcmp(buf, "http") == 0) {
+ *pssl = 0;
+ port = "80";
+ } else if (strcmp(buf, "https") == 0) {
+ *pssl = 1;
+ port = "443";
+ } else
+ goto parse_err;
+
+ /* Check for double slash */
+ if ((p[0] != '/') || (p[1] != '/'))
+ goto parse_err;
+
+ p += 2;
+
+ host = p;
+
+ /* Check for trailing part of path */
+
+ p = strchr(p, '/');
+
+ if (!p)
+ *ppath = BUF_strdup("/");
+ else {
+ *ppath = BUF_strdup(p);
+ /* Set start of path to 0 so hostname is valid */
+ *p = '\0';
+ }
+
+ if (!*ppath)
+ goto mem_err;
+
+ p = host;
+ if (host[0] == '[') {
+ /* ipv6 literal */
+ host++;
+ p = strchr(host, ']');
+ if (!p)
+ goto parse_err;
+ *p = '\0';
+ p++;
+ }
+
+ /* Look for optional ':' for port number */
+ if ((p = strchr(p, ':'))) {
+ *p = 0;
+ port = p + 1;
+ } else {
+ /* Not found: set default port */
+ if (*pssl)
+ port = "443";
+ else
+ port = "80";
+ }
+
+ *pport = BUF_strdup(port);
+ if (!*pport)
+ goto mem_err;
+
+ *phost = BUF_strdup(host);
+
+ if (!*phost)
+ goto mem_err;
+
+ OPENSSL_free(buf);
+
+ return 1;
+
+ mem_err:
+ OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE);
+ goto err;
+
+ parse_err:
+ OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL);
-static STACK_OF(X509_EXTENSION) *ext_dup(STACK_OF(X509_EXTENSION) *fr)
- {
- int i;
- STACK_OF(X509_EXTENSION) *to = NULL;
-
- if (!(to = sk_X509_EXTENSION_dup(fr)))
- goto err;
- for (i = 0; i < sk_X509_EXTENSION_num(fr); i++)
- {
- sk_X509_EXTENSION_set(to, i,
- X509_EXTENSION_dup(sk_X509_EXTENSION_value(fr, i)));
- if (! sk_X509_EXTENSION_value(to, i))
- goto err;
- }
- return to;
-err:
- if (to) sk_X509_EXTENSION_pop_free(to, X509_EXTENSION_free);
- return NULL;
- }
-
-OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
- X509_NAME *issuerName,
- ASN1_BIT_STRING* issuerKey,
- ASN1_INTEGER *serialNumber)
- {
- int nid;
- unsigned int i;
- X509_ALGOR *alg;
- OCSP_CERTID *cid = NULL;
- unsigned char md[EVP_MAX_MD_SIZE];
- EVP_MD_CTX ctx;
-
- if (!(cid = OCSP_CERTID_new())) goto err;
-
- alg = cid->hashAlgorithm;
- if (alg->algorithm != NULL) ASN1_OBJECT_free(alg->algorithm);
- if ((nid = EVP_MD_type(dgst)) == NID_undef)
- {
- OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_UNKNOWN_NID);
- goto err;
- }
- if (!(alg->algorithm=OBJ_nid2obj(nid))) goto err;
- if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err;
- alg->parameter->type=V_ASN1_NULL;
-
- if (!X509_NAME_digest(issuerName, dgst, md, &i)) goto digerr;
- if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i))) goto err;
-
- /* Calculate the issuerKey hash, excluding tag and length */
- EVP_DigestInit(&ctx,dgst);
- EVP_DigestUpdate(&ctx,issuerKey->data, issuerKey->length);
- EVP_DigestFinal(&ctx,md,&i);
-
- if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i))) goto err;
-
- if (cid->serialNumber != NULL) ASN1_INTEGER_free(cid->serialNumber);
- if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber))) goto err;
- return cid;
-digerr:
- OCSPerr(OCSP_F_CERT_ID_NEW,OCSP_R_DIGEST_ERR);
-err:
- if (cid) OCSP_CERTID_free(cid);
- return NULL;
- }
-
-OCSP_CERTSTATUS *OCSP_cert_status_new(int status, int reason, char *tim)
- {
- OCSP_REVOKEDINFO *ri;
- OCSP_CERTSTATUS *cs = NULL;
-
- if (!(cs = OCSP_CERTSTATUS_new())) goto err;
- if ((cs->type = status) == V_OCSP_CERTSTATUS_REVOKED)
- {
- if (!time)
- {
- OCSPerr(OCSP_F_CERT_STATUS_NEW,OCSP_R_REVOKED_NO_TIME);
- goto err;
- }
- if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new())) goto err;
- if (!ASN1_GENERALIZEDTIME_set_string(ri->revocationTime,tim))
- goto err;
- if (reason != OCSP_REVOKED_STATUS_NOSTATUS)
- {
- if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
- goto err;
- if (!(ASN1_ENUMERATED_set(ri->revocationReason,
- reason)))
- goto err;
- }
- }
- return cs;
-err:
- if (cs) OCSP_CERTSTATUS_free(cs);
- return NULL;
- }
-
-OCSP_REQUEST *OCSP_request_new(X509_NAME* name,
- STACK_OF(X509_EXTENSION) *extensions)
- {
- OCSP_REQUEST *req = NULL;
-
- if ((req = OCSP_REQUEST_new()) == NULL) goto err;
- if (name) /* optional */
- {
- if (!(req->tbsRequest->requestorName=GENERAL_NAME_new()))
- goto err;
- req->tbsRequest->requestorName->type = GEN_DIRNAME;
- req->tbsRequest->requestorName->d.dirn = X509_NAME_dup(name);
- }
- if (!(req->tbsRequest->requestList = sk_OCSP_ONEREQ_new(NULL))) goto err;
- if (extensions &&
- (!(req->tbsRequest->requestExtensions = ext_dup(extensions))))
- goto err;
- return req;
-err:
- if (req) OCSP_REQUEST_free(req);
- return NULL;
- }
-
-int OCSP_request_add(OCSP_REQUEST *req,
- OCSP_CERTID *cid,
- STACK_OF(X509_EXTENSION) *extensions)
- {
- OCSP_ONEREQ *one = NULL;
-
- if (!(one = OCSP_ONEREQ_new())) goto err;
- if (one->reqCert) OCSP_CERTID_free(one->reqCert);
- if (!(one->reqCert = OCSP_CERTID_dup(cid))) goto err;
- if (extensions&&(!(one->singleRequestExtensions=ext_dup(extensions))))
- goto err;
- if (!sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one)) goto err;
- return 1;
-err:
- if (one) OCSP_ONEREQ_free(one);
- return 0;
- }
-
-int OCSP_request_sign(OCSP_REQUEST *req,
- EVP_PKEY *key,
- const EVP_MD *dgst,
- STACK_OF(X509) *certs)
- {
- int i;
- OCSP_SIGNATURE *sig;
-
- if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err;
- if (!OCSP_REQUEST_sign(req, key, dgst)) goto err;
- if (certs)
- {
- if (!(sig->certs = sk_X509_dup(certs))) goto err;
- for (i = 0; i < sk_X509_num(sig->certs); i++)
- {
- sk_X509_set(sig->certs, i,
- X509_dup(sk_X509_value(certs,i)));
- if (! sk_X509_value(sig->certs, i))
- goto err;
- }
- }
- return 1;
-err:
- if (req->optionalSignature)
- {
- OCSP_SIGNATURE_free(req->optionalSignature);
- req->optionalSignature = NULL;
- }
- return 0;
- }
-
-OCSP_BASICRESP *OCSP_basic_response_new(int type,
- X509* cert,
- STACK_OF(X509_EXTENSION) *extensions)
- {
- time_t t;
- OCSP_RESPID *rid;
- ASN1_BIT_STRING *bs;
- OCSP_BASICRESP *rsp = NULL;
- unsigned char md[SHA_DIGEST_LENGTH];
-
- if (!(rsp = OCSP_BASICRESP_new())) goto err;
- rid = rsp->tbsResponseData->responderId;
- switch (rid->type = type)
- {
- case V_OCSP_RESPID_NAME:
- /* cert is user cert */
- if (!(rid->value.byName =
- X509_NAME_dup(X509_get_subject_name(cert))))
- goto err;
- break;
- case V_OCSP_RESPID_KEY:
- /* cert is issuer cert */
- /* SHA-1 hash of responder's public key
- * (excluding the tag and length fields)
- */
- bs = cert->cert_info->key->public_key;
- SHA1(ASN1_STRING_data((ASN1_STRING*)bs),
- ASN1_STRING_length((ASN1_STRING*)bs), md);
- if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
- goto err;
- if (!(ASN1_OCTET_STRING_set(rid->value.byKey,
- md, sizeof md)))
- goto err;
- break;
- default:
- OCSPerr(OCSP_F_BASIC_RESPONSE_NEW,OCSP_R_BAD_TAG);
- goto err;
- break;
- }
- time(&t);
- if (!(ASN1_GENERALIZEDTIME_set(rsp->tbsResponseData->producedAt, t)))
- goto err;
- if (!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new(NULL))) goto err;
- if (extensions && (!(rsp->tbsResponseData->responseExtensions =
- ext_dup(extensions))))
- goto err;
- return rsp;
-err:
- if (rsp) OCSP_BASICRESP_free(rsp);
- return NULL;
- }
-
-int OCSP_basic_response_add(OCSP_BASICRESP *rsp,
- OCSP_CERTID *cid,
- OCSP_CERTSTATUS *cst,
- char *this,
- char *next,
- STACK_OF(X509_EXTENSION) *extensions)
- {
- OCSP_SINGLERESP *single = NULL;
-
- if (!(single = OCSP_SINGLERESP_new())) goto err;
- if (single->certId) OCSP_CERTID_free(single->certId);
- if (!(single->certId = OCSP_CERTID_dup(cid))) goto err;
- if (single->certStatus) OCSP_CERTSTATUS_free(single->certStatus);
- if (!(single->certStatus = OCSP_CERTSTATUS_dup(cst))) goto err;
- if (!ASN1_GENERALIZEDTIME_set_string(single->thisUpdate,this))goto err;
- if (next)
- {
- if (!(single->nextUpdate = ASN1_GENERALIZEDTIME_new()))
- goto err;
- if (!ASN1_GENERALIZEDTIME_set_string(single->nextUpdate,next))
- goto err;
- }
- if (extensions && (!(single->singleExtensions = ext_dup(extensions))))
- goto err;
- if (!sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses,single)) goto err;
- return 1;
-err:
- if (single) OCSP_SINGLERESP_free(single);
- return 0;
- }
-
-int OCSP_basic_response_sign(OCSP_BASICRESP *brsp,
- EVP_PKEY *key,
- const EVP_MD *dgst,
- STACK_OF(X509) *certs)
- {
- int i;
-
- /* Right now, I think that not doing double hashing is the right
- thing. -- Richard Levitte */
- if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0)) goto err;
- if (certs)
- {
- if (!(brsp->certs = sk_X509_dup(certs))) goto err;
- for (i = 0; i < sk_X509_num(brsp->certs); i++)
- {
- sk_X509_set(brsp->certs, i,
- X509_dup(sk_X509_value(certs, i)));
- if (! sk_X509_value(brsp->certs, i))
- goto err;
- }
- }
- return 1;
-err:
- return 0;
- }
-
-OCSP_RESPONSE *OCSP_response_new(int status,
- int nid,
- int (*i2d)(),
- char *data)
- {
- OCSP_RESPONSE *rsp = NULL;
-
- if (!(rsp = OCSP_RESPONSE_new())) goto err;
- if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status))) goto err;
- if (!(rsp->responseBytes = OCSP_RESPBYTES_new())) goto err;
- if (rsp->responseBytes->responseType) ASN1_OBJECT_free(rsp->responseBytes->responseType);
- if (!(rsp->responseBytes->responseType = OBJ_nid2obj(nid))) goto err;
- if (!ASN1_STRING_encode((ASN1_STRING*)rsp->responseBytes->response,
- i2d, data, NULL)) goto err;
- return rsp;
-err:
- if (rsp) OCSP_RESPONSE_free(rsp);
- return NULL;
- }
-
-/* XXX assumes certs in signature are sorted root to leaf XXX */
-int OCSP_request_verify(OCSP_REQUEST *req, EVP_PKEY *pkey)
- {
- STACK_OF(X509) *sk;
-
- if (!req->optionalSignature) return 0;
- if (pkey == NULL)
- {
- if (!(sk = req->optionalSignature->certs)) return 0;
- if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
- {
- OCSPerr(OCSP_F_REQUEST_VERIFY,OCSP_R_NO_PUBLIC_KEY);
- return 0;
- }
- }
- return OCSP_REQUEST_verify(req, pkey);
- }
-
-int OCSP_response_verify(OCSP_RESPONSE *rsp, EVP_PKEY *pkey)
- {
- int i, r;
- unsigned char *p;
- OCSP_RESPBYTES *rb;
- OCSP_BASICRESP *br = NULL;
-
- if ((rb = rsp->responseBytes) == NULL)
- {
- OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_NO_RESPONSE_DATA);
- return 0;
- }
- if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
- {
- OCSPerr(OCSP_F_RESPONSE_VERIFY,OCSP_R_BAD_TAG);
- return 0;
- }
- p = ASN1_STRING_data(rb->response);
- i = ASN1_STRING_length(rb->response);
- if (!(d2i_OCSP_BASICRESP(&br, &p, i))) return 0;
- r = OCSP_basic_response_verify(br, pkey);
- OCSP_BASICRESP_free(br);
- return r;
- }
-
-int OCSP_basic_response_verify(OCSP_BASICRESP *rsp, EVP_PKEY *pkey)
- {
- STACK_OF(X509) *sk;
- int ret;
-
- if (!rsp->signature)
- {
- OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_SIGNATURE);
- return 0;
- }
- if (pkey == NULL)
- {
- if (!(sk = rsp->certs))
- {
- OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_CERTIFICATE);
- return 0;
- }
- if (!(pkey=X509_get_pubkey(sk_X509_value(sk, sk_X509_num(sk)-1))))
- {
- OCSPerr(OCSP_F_BASIC_RESPONSE_VERIFY,OCSP_R_NO_PUBLIC_KEY);
- return 0;
- }
- }
- ret = OCSP_BASICRESP_verify(rsp, pkey, 0);
- return ret;
- }
+ err:
+ OPENSSL_free(buf);
+ OPENSSL_free(*ppath);
+ OPENSSL_free(*pport);
+ OPENSSL_free(*phost);
+ return 0;
+
+}
+
+IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID)
projects / openssl.git / blobdiff