1 files changed, 418 insertions, 0 deletions

diff --git a/src/lib/libcrypto/x509/x509_cmp.c b/src/lib/libcrypto/x509/x509_cmp.c
new file mode 100644
index 0000000000..f460102f49
--- /dev/null
+++ b/src/lib/libcrypto/x509/x509_cmp.c
@@ -0,0 +1,418 @@
+/* crypto/x509/x509_cmp.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <ctype.h>
+#include "cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+int X509_issuer_and_serial_cmp(const X509 *a, const X509 *b)
+        {
+        int i;
+        X509_CINF *ai,*bi;
+
+        ai=a->cert_info;
+        bi=b->cert_info;
+        i=M_ASN1_INTEGER_cmp(ai->serialNumber,bi->serialNumber);
+        if (i) return(i);
+        return(X509_NAME_cmp(ai->issuer,bi->issuer));
+        }
+
+#ifndef OPENSSL_NO_MD5
+unsigned long X509_issuer_and_serial_hash(X509 *a)
+        {
+        unsigned long ret=0;
+        EVP_MD_CTX ctx;
+        unsigned char md[16];
+        char *f;
+
+        EVP_MD_CTX_init(&ctx);
+        f=X509_NAME_oneline(a->cert_info->issuer,NULL,0);
+        ret=strlen(f);
+        EVP_DigestInit_ex(&ctx, EVP_md5(), NULL);
+        EVP_DigestUpdate(&ctx,(unsigned char *)f,ret);
+        OPENSSL_free(f);
+        EVP_DigestUpdate(&ctx,(unsigned char *)a->cert_info->serialNumber->data,
+                (unsigned long)a->cert_info->serialNumber->length);
+        EVP_DigestFinal_ex(&ctx,&(md[0]),NULL);
+        ret=(   ((unsigned long)md[0]     )|((unsigned long)md[1]<<8L)|
+                ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
+                )&0xffffffffL;
+        EVP_MD_CTX_cleanup(&ctx);
+        return(ret);
+        }
+#endif
+        
+int X509_issuer_name_cmp(const X509 *a, const X509 *b)
+        {
+        return(X509_NAME_cmp(a->cert_info->issuer,b->cert_info->issuer));
+        }
+
+int X509_subject_name_cmp(const X509 *a, const X509 *b)
+        {
+        return(X509_NAME_cmp(a->cert_info->subject,b->cert_info->subject));
+        }
+
+int X509_CRL_cmp(const X509_CRL *a, const X509_CRL *b)
+        {
+        return(X509_NAME_cmp(a->crl->issuer,b->crl->issuer));
+        }
+
+X509_NAME *X509_get_issuer_name(X509 *a)
+        {
+        return(a->cert_info->issuer);
+        }
+
+unsigned long X509_issuer_name_hash(X509 *x)
+        {
+        return(X509_NAME_hash(x->cert_info->issuer));
+        }
+
+X509_NAME *X509_get_subject_name(X509 *a)
+        {
+        return(a->cert_info->subject);
+        }
+
+ASN1_INTEGER *X509_get_serialNumber(X509 *a)
+        {
+        return(a->cert_info->serialNumber);
+        }
+
+unsigned long X509_subject_name_hash(X509 *x)
+        {
+        return(X509_NAME_hash(x->cert_info->subject));
+        }
+
+#ifndef OPENSSL_NO_SHA
+/* Compare two certificates: they must be identical for
+ * this to work. NB: Although "cmp" operations are generally
+ * prototyped to take "const" arguments (eg. for use in
+ * STACKs), the way X509 handling is - these operations may
+ * involve ensuring the hashes are up-to-date and ensuring
+ * certain cert information is cached. So this is the point
+ * where the "depth-first" constification tree has to halt
+ * with an evil cast.
+ */
+int X509_cmp(const X509 *a, const X509 *b)
+{
+        /* ensure hash is valid */
+        X509_check_purpose((X509 *)a, -1, 0);
+        X509_check_purpose((X509 *)b, -1, 0);
+
+        return memcmp(a->sha1_hash, b->sha1_hash, SHA_DIGEST_LENGTH);
+}
+#endif
+
+
+/* Case insensitive string comparision */
+static int nocase_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+        int i;
+
+        if (a->length != b->length)
+                return (a->length - b->length);
+
+        for (i=0; i<a->length; i++)
+        {
+                int ca, cb;
+
+                ca = tolower(a->data[i]);
+                cb = tolower(b->data[i]);
+
+                if (ca != cb)
+                        return(ca-cb);
+        }
+        return 0;
+}
+
+/* Case insensitive string comparision with space normalization 
+ * Space normalization - ignore leading, trailing spaces, 
+ *       multiple spaces between characters are replaced by single space  
+ */
+static int nocase_spacenorm_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+{
+        unsigned char *pa = NULL, *pb = NULL;
+        int la, lb;
+        
+        la = a->length;
+        lb = b->length;
+        pa = a->data;
+        pb = b->data;
+
+        /* skip leading spaces */
+        while (la > 0 && isspace(*pa))
+        {
+                la--;
+                pa++;
+        }
+        while (lb > 0 && isspace(*pb))
+        {
+                lb--;
+                pb++;
+        }
+
+        /* skip trailing spaces */
+        while (la > 0 && isspace(pa[la-1]))
+                la--;
+        while (lb > 0 && isspace(pb[lb-1]))
+                lb--;
+
+        /* compare strings with space normalization */
+        while (la > 0 && lb > 0)
+        {
+                int ca, cb;
+
+                /* compare character */
+                ca = tolower(*pa);
+                cb = tolower(*pb);
+                if (ca != cb)
+                        return (ca - cb);
+
+                pa++; pb++;
+                la--; lb--;
+
+                if (la <= 0 || lb <= 0)
+                        break;
+
+                /* is white space next character ? */
+                if (isspace(*pa) && isspace(*pb))
+                {
+                        /* skip remaining white spaces */
+                        while (la > 0 && isspace(*pa))
+                        {
+                                la--;
+                                pa++;
+                        }
+                        while (lb > 0 && isspace(*pb))
+                        {
+                                lb--;
+                                pb++;
+                        }
+                }
+        }
+        if (la > 0 || lb > 0)
+                return la - lb;
+
+        return 0;
+}
+
+int X509_NAME_cmp(const X509_NAME *a, const X509_NAME *b)
+        {
+        int i,j;
+        X509_NAME_ENTRY *na,*nb;
+
+        if (sk_X509_NAME_ENTRY_num(a->entries)
+            != sk_X509_NAME_ENTRY_num(b->entries))
+                return sk_X509_NAME_ENTRY_num(a->entries)
+                  -sk_X509_NAME_ENTRY_num(b->entries);
+        for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
+                {
+                na=sk_X509_NAME_ENTRY_value(a->entries,i);
+                nb=sk_X509_NAME_ENTRY_value(b->entries,i);
+                j=na->value->type-nb->value->type;
+                if (j) return(j);
+                if (na->value->type == V_ASN1_PRINTABLESTRING)
+                        j=nocase_spacenorm_cmp(na->value, nb->value);
+                else if (na->value->type == V_ASN1_IA5STRING
+                        && OBJ_obj2nid(na->object) == NID_pkcs9_emailAddress)
+                        j=nocase_cmp(na->value, nb->value);
+                else
+                        {
+                        j=na->value->length-nb->value->length;
+                        if (j) return(j);
+                        j=memcmp(na->value->data,nb->value->data,
+                                na->value->length);
+                        }
+                if (j) return(j);
+                j=na->set-nb->set;
+                if (j) return(j);
+                }
+
+        /* We will check the object types after checking the values
+         * since the values will more often be different than the object
+         * types. */
+        for (i=sk_X509_NAME_ENTRY_num(a->entries)-1; i>=0; i--)
+                {
+                na=sk_X509_NAME_ENTRY_value(a->entries,i);
+                nb=sk_X509_NAME_ENTRY_value(b->entries,i);
+                j=OBJ_cmp(na->object,nb->object);
+                if (j) return(j);
+                }
+        return(0);
+        }
+
+#ifndef OPENSSL_NO_MD5
+/* I now DER encode the name and hash it.  Since I cache the DER encoding,
+ * this is reasonably efficient. */
+unsigned long X509_NAME_hash(X509_NAME *x)
+        {
+        unsigned long ret=0;
+        unsigned char md[16];
+
+        /* Make sure X509_NAME structure contains valid cached encoding */
+        i2d_X509_NAME(x,NULL);
+        EVP_Digest(x->bytes->data, x->bytes->length, md, NULL, EVP_md5(), NULL);
+
+        ret=(   ((unsigned long)md[0]     )|((unsigned long)md[1]<<8L)|
+                ((unsigned long)md[2]<<16L)|((unsigned long)md[3]<<24L)
+                )&0xffffffffL;
+        return(ret);
+        }
+#endif
+
+/* Search a stack of X509 for a match */
+X509 *X509_find_by_issuer_and_serial(STACK_OF(X509) *sk, X509_NAME *name,
+                ASN1_INTEGER *serial)
+        {
+        int i;
+        X509_CINF cinf;
+        X509 x,*x509=NULL;
+
+        if(!sk) return NULL;
+
+        x.cert_info= &cinf;
+        cinf.serialNumber=serial;
+        cinf.issuer=name;
+
+        for (i=0; i<sk_X509_num(sk); i++)
+                {
+                x509=sk_X509_value(sk,i);
+                if (X509_issuer_and_serial_cmp(x509,&x) == 0)
+                        return(x509);
+                }
+        return(NULL);
+        }
+
+X509 *X509_find_by_subject(STACK_OF(X509) *sk, X509_NAME *name)
+        {
+        X509 *x509;
+        int i;
+
+        for (i=0; i<sk_X509_num(sk); i++)
+                {
+                x509=sk_X509_value(sk,i);
+                if (X509_NAME_cmp(X509_get_subject_name(x509),name) == 0)
+                        return(x509);
+                }
+        return(NULL);
+        }
+
+EVP_PKEY *X509_get_pubkey(X509 *x)
+        {
+        if ((x == NULL) || (x->cert_info == NULL))
+                return(NULL);
+        return(X509_PUBKEY_get(x->cert_info->key));
+        }
+
+ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x)
+        {
+        if(!x) return NULL;
+        return x->cert_info->key->public_key;
+        }
+
+int X509_check_private_key(X509 *x, EVP_PKEY *k)
+        {
+        EVP_PKEY *xk=NULL;
+        int ok=0;
+
+        xk=X509_get_pubkey(x);
+        if (xk->type != k->type)
+            {
+            X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_TYPE_MISMATCH);
+            goto err;
+            }
+        switch (k->type)
+                {
+#ifndef OPENSSL_NO_RSA
+        case EVP_PKEY_RSA:
+                if (BN_cmp(xk->pkey.rsa->n,k->pkey.rsa->n) != 0
+                    || BN_cmp(xk->pkey.rsa->e,k->pkey.rsa->e) != 0)
+                    {
+                    X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
+                    goto err;
+                    }
+                break;
+#endif
+#ifndef OPENSSL_NO_DSA
+        case EVP_PKEY_DSA:
+                if (BN_cmp(xk->pkey.dsa->pub_key,k->pkey.dsa->pub_key) != 0)
+                    {
+                    X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_KEY_VALUES_MISMATCH);
+                    goto err;
+                    }
+                break;
+#endif
+#ifndef OPENSSL_NO_DH
+        case EVP_PKEY_DH:
+                /* No idea */
+                X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_CANT_CHECK_DH_KEY);
+                goto err;
+#endif
+        default:
+                X509err(X509_F_X509_CHECK_PRIVATE_KEY,X509_R_UNKNOWN_KEY_TYPE);
+                goto err;
+                }
+
+        ok=1;
+err:
+        EVP_PKEY_free(xk);
+        return(ok);
+        }