298 lines
7.5 KiB
C
298 lines
7.5 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/bn.h>
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#include <openssl/evp.h>
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#include <openssl/asn1.h>
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#include <openssl/asn1t.h>
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#include <openssl/x509.h>
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#include "internal/x509_int.h"
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#include <openssl/objects.h>
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#include <openssl/buffer.h>
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#include <openssl/pem.h>
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X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
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{
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X509_REQ *ret;
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X509_REQ_INFO *ri;
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int i;
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EVP_PKEY *pktmp;
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ret = X509_REQ_new();
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if (ret == NULL) {
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X509err(X509_F_X509_TO_X509_REQ, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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ri = &ret->req_info;
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ri->version->length = 1;
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ri->version->data = OPENSSL_malloc(1);
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if (ri->version->data == NULL)
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goto err;
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ri->version->data[0] = 0; /* version == 0 */
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if (!X509_REQ_set_subject_name(ret, X509_get_subject_name(x)))
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goto err;
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pktmp = X509_get0_pubkey(x);
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if (pktmp == NULL)
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goto err;
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i = X509_REQ_set_pubkey(ret, pktmp);
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if (!i)
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goto err;
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if (pkey != NULL) {
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if (!X509_REQ_sign(ret, pkey, md))
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goto err;
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}
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return (ret);
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err:
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X509_REQ_free(ret);
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return (NULL);
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}
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EVP_PKEY *X509_REQ_get_pubkey(X509_REQ *req)
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{
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if (req == NULL)
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return (NULL);
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return (X509_PUBKEY_get(req->req_info.pubkey));
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}
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EVP_PKEY *X509_REQ_get0_pubkey(X509_REQ *req)
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{
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if (req == NULL)
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return NULL;
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return (X509_PUBKEY_get0(req->req_info.pubkey));
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}
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X509_PUBKEY *X509_REQ_get_X509_PUBKEY(X509_REQ *req)
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{
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return req->req_info.pubkey;
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}
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int X509_REQ_check_private_key(X509_REQ *x, EVP_PKEY *k)
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{
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EVP_PKEY *xk = NULL;
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int ok = 0;
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xk = X509_REQ_get_pubkey(x);
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switch (EVP_PKEY_cmp(xk, k)) {
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case 1:
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ok = 1;
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break;
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case 0:
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
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X509_R_KEY_VALUES_MISMATCH);
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break;
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case -1:
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_KEY_TYPE_MISMATCH);
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break;
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case -2:
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#ifndef OPENSSL_NO_EC
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if (EVP_PKEY_id(k) == EVP_PKEY_EC) {
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, ERR_R_EC_LIB);
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break;
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}
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#endif
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#ifndef OPENSSL_NO_DH
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if (EVP_PKEY_id(k) == EVP_PKEY_DH) {
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/* No idea */
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY,
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X509_R_CANT_CHECK_DH_KEY);
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break;
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}
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#endif
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X509err(X509_F_X509_REQ_CHECK_PRIVATE_KEY, X509_R_UNKNOWN_KEY_TYPE);
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}
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EVP_PKEY_free(xk);
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return (ok);
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}
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/*
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* It seems several organisations had the same idea of including a list of
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* extensions in a certificate request. There are at least two OIDs that are
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* used and there may be more: so the list is configurable.
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*/
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static int ext_nid_list[] = { NID_ext_req, NID_ms_ext_req, NID_undef };
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static int *ext_nids = ext_nid_list;
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int X509_REQ_extension_nid(int req_nid)
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{
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int i, nid;
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for (i = 0;; i++) {
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nid = ext_nids[i];
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if (nid == NID_undef)
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return 0;
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else if (req_nid == nid)
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return 1;
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}
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}
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int *X509_REQ_get_extension_nids(void)
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{
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return ext_nids;
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}
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void X509_REQ_set_extension_nids(int *nids)
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{
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ext_nids = nids;
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}
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STACK_OF(X509_EXTENSION) *X509_REQ_get_extensions(X509_REQ *req)
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{
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X509_ATTRIBUTE *attr;
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ASN1_TYPE *ext = NULL;
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int idx, *pnid;
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const unsigned char *p;
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if ((req == NULL) || !ext_nids)
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return (NULL);
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for (pnid = ext_nids; *pnid != NID_undef; pnid++) {
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idx = X509_REQ_get_attr_by_NID(req, *pnid, -1);
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if (idx == -1)
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continue;
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attr = X509_REQ_get_attr(req, idx);
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ext = X509_ATTRIBUTE_get0_type(attr, 0);
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break;
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}
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if (!ext || (ext->type != V_ASN1_SEQUENCE))
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return NULL;
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p = ext->value.sequence->data;
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return (STACK_OF(X509_EXTENSION) *)
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ASN1_item_d2i(NULL, &p, ext->value.sequence->length,
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ASN1_ITEM_rptr(X509_EXTENSIONS));
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}
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/*
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* Add a STACK_OF extensions to a certificate request: allow alternative OIDs
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* in case we want to create a non standard one.
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*/
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int X509_REQ_add_extensions_nid(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts,
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int nid)
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{
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int extlen;
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int rv = 0;
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unsigned char *ext = NULL;
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/* Generate encoding of extensions */
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extlen = ASN1_item_i2d((ASN1_VALUE *)exts, &ext,
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ASN1_ITEM_rptr(X509_EXTENSIONS));
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if (extlen <= 0)
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return 0;
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rv = X509_REQ_add1_attr_by_NID(req, nid, V_ASN1_SEQUENCE, ext, extlen);
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OPENSSL_free(ext);
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return rv;
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}
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/* This is the normal usage: use the "official" OID */
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int X509_REQ_add_extensions(X509_REQ *req, STACK_OF(X509_EXTENSION) *exts)
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{
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return X509_REQ_add_extensions_nid(req, exts, NID_ext_req);
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}
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/* Request attribute functions */
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int X509_REQ_get_attr_count(const X509_REQ *req)
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{
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return X509at_get_attr_count(req->req_info.attributes);
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}
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int X509_REQ_get_attr_by_NID(const X509_REQ *req, int nid, int lastpos)
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{
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return X509at_get_attr_by_NID(req->req_info.attributes, nid, lastpos);
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}
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int X509_REQ_get_attr_by_OBJ(const X509_REQ *req, ASN1_OBJECT *obj,
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int lastpos)
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{
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return X509at_get_attr_by_OBJ(req->req_info.attributes, obj, lastpos);
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}
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X509_ATTRIBUTE *X509_REQ_get_attr(const X509_REQ *req, int loc)
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{
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return X509at_get_attr(req->req_info.attributes, loc);
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}
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X509_ATTRIBUTE *X509_REQ_delete_attr(X509_REQ *req, int loc)
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{
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return X509at_delete_attr(req->req_info.attributes, loc);
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}
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int X509_REQ_add1_attr(X509_REQ *req, X509_ATTRIBUTE *attr)
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{
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if (X509at_add1_attr(&req->req_info.attributes, attr))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_OBJ(X509_REQ *req,
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const ASN1_OBJECT *obj, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_OBJ(&req->req_info.attributes, obj,
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type, bytes, len))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_NID(X509_REQ *req,
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int nid, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_NID(&req->req_info.attributes, nid,
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type, bytes, len))
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return 1;
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return 0;
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}
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int X509_REQ_add1_attr_by_txt(X509_REQ *req,
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const char *attrname, int type,
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const unsigned char *bytes, int len)
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{
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if (X509at_add1_attr_by_txt(&req->req_info.attributes, attrname,
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type, bytes, len))
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return 1;
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return 0;
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}
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long X509_REQ_get_version(const X509_REQ *req)
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{
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return ASN1_INTEGER_get(req->req_info.version);
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}
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X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req)
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{
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return req->req_info.subject;
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}
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void X509_REQ_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg,
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X509_REQ *req)
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{
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if (psig != NULL)
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*psig = req->signature;
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if (palg != NULL)
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*palg = &req->sig_alg;
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}
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int X509_REQ_get_signature_nid(const X509_REQ *req)
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{
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return OBJ_obj2nid(req->sig_alg.algorithm);
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}
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int i2d_re_X509_REQ_tbs(X509_REQ *req, unsigned char **pp)
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{
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req->req_info.enc.modified = 1;
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return i2d_X509_REQ_INFO(&req->req_info, pp);
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}
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