--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/pkcs7/pk7_lib.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,589 @@
+/* crypto/pkcs7/pk7_lib.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 "cryptlib.h"
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+
+EXPORT_C long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
+	{
+	int nid;
+	long ret;
+
+	nid=OBJ_obj2nid(p7->type);
+
+	switch (cmd)
+		{
+	case PKCS7_OP_SET_DETACHED_SIGNATURE:
+		if (nid == NID_pkcs7_signed)
+			{
+			ret=p7->detached=(int)larg;
+			if (ret && PKCS7_type_is_data(p7->d.sign->contents))
+					{
+					ASN1_OCTET_STRING *os;
+					os=p7->d.sign->contents->d.data;
+					ASN1_OCTET_STRING_free(os);
+					p7->d.sign->contents->d.data = NULL;
+					}
+			}
+		else
+			{
+			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
+			ret=0;
+			}
+		break;
+	case PKCS7_OP_GET_DETACHED_SIGNATURE:
+		if (nid == NID_pkcs7_signed)
+			{
+			if(!p7->d.sign  || !p7->d.sign->contents->d.ptr)
+				ret = 1;
+			else ret = 0;
+				
+			p7->detached = ret;
+			}
+		else
+			{
+			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
+			ret=0;
+			}
+			
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
+		ret=0;
+		}
+	return(ret);
+	}
+
+EXPORT_C int PKCS7_content_new(PKCS7 *p7, int type)
+	{
+	PKCS7 *ret=NULL;
+
+	if ((ret=PKCS7_new()) == NULL) goto err;
+	if (!PKCS7_set_type(ret,type)) goto err;
+	if (!PKCS7_set_content(p7,ret)) goto err;
+
+	return(1);
+err:
+	if (ret != NULL) PKCS7_free(ret);
+	return(0);
+	}
+
+EXPORT_C int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
+	{
+	int i;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signed:
+		if (p7->d.sign->contents != NULL)
+			PKCS7_free(p7->d.sign->contents);
+		p7->d.sign->contents=p7_data;
+		break;
+	case NID_pkcs7_digest:
+		if (p7->d.digest->contents != NULL)
+			PKCS7_free(p7->d.digest->contents);
+		p7->d.digest->contents=p7_data;
+		break;
+	case NID_pkcs7_data:
+	case NID_pkcs7_enveloped:
+	case NID_pkcs7_signedAndEnveloped:
+	case NID_pkcs7_encrypted:
+	default:
+		PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+		goto err;
+		}
+	return(1);
+err:
+	return(0);
+	}
+
+EXPORT_C int PKCS7_set_type(PKCS7 *p7, int type)
+	{
+	ASN1_OBJECT *obj;
+
+	/*PKCS7_content_free(p7);*/
+	obj=OBJ_nid2obj(type); /* will not fail */
+
+	switch (type)
+		{
+	case NID_pkcs7_signed:
+		p7->type=obj;
+		if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
+			goto err;
+		if (!ASN1_INTEGER_set(p7->d.sign->version,1))
+			{
+			PKCS7_SIGNED_free(p7->d.sign);
+			p7->d.sign=NULL;
+			goto err;
+			}
+		break;
+	case NID_pkcs7_data:
+		p7->type=obj;
+		if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
+			goto err;
+		break;
+	case NID_pkcs7_signedAndEnveloped:
+		p7->type=obj;
+		if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
+			== NULL) goto err;
+		ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
+		if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1))
+			goto err;
+		p7->d.signed_and_enveloped->enc_data->content_type
+						= OBJ_nid2obj(NID_pkcs7_data);
+		break;
+	case NID_pkcs7_enveloped:
+		p7->type=obj;
+		if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
+			== NULL) goto err;
+		if (!ASN1_INTEGER_set(p7->d.enveloped->version,0))
+			goto err;
+		p7->d.enveloped->enc_data->content_type
+						= OBJ_nid2obj(NID_pkcs7_data);
+		break;
+	case NID_pkcs7_encrypted:
+		p7->type=obj;
+		if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
+			== NULL) goto err;
+		if (!ASN1_INTEGER_set(p7->d.encrypted->version,0))
+			goto err;
+		p7->d.encrypted->enc_data->content_type
+						= OBJ_nid2obj(NID_pkcs7_data);
+		break;
+
+	case NID_pkcs7_digest:
+		p7->type=obj;
+		if ((p7->d.digest=PKCS7_DIGEST_new())
+			== NULL) goto err;
+		if (!ASN1_INTEGER_set(p7->d.digest->version,0))
+			goto err;
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+		goto err;
+		}
+	return(1);
+err:
+	return(0);
+	}
+
+EXPORT_C int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
+	{
+	p7->type = OBJ_nid2obj(type);
+	p7->d.other = other;
+	return 1;
+	}
+
+EXPORT_C int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
+	{
+	int i,j,nid;
+	X509_ALGOR *alg;
+	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
+	STACK_OF(X509_ALGOR) *md_sk;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signed:
+		signer_sk=	p7->d.sign->signer_info;
+		md_sk=		p7->d.sign->md_algs;
+		break;
+	case NID_pkcs7_signedAndEnveloped:
+		signer_sk=	p7->d.signed_and_enveloped->signer_info;
+		md_sk=		p7->d.signed_and_enveloped->md_algs;
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
+		return(0);
+		}
+
+	nid=OBJ_obj2nid(psi->digest_alg->algorithm);
+
+	/* If the digest is not currently listed, add it */
+	j=0;
+	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
+		{
+		alg=sk_X509_ALGOR_value(md_sk,i);
+		if (OBJ_obj2nid(alg->algorithm) == nid)
+			{
+			j=1;
+			break;
+			}
+		}
+	if (!j) /* we need to add another algorithm */
+		{
+		if(!(alg=X509_ALGOR_new())
+			|| !(alg->parameter = ASN1_TYPE_new()))
+			{
+			X509_ALGOR_free(alg);
+			PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
+			return(0);
+		}
+		alg->algorithm=OBJ_nid2obj(nid);
+		alg->parameter->type = V_ASN1_NULL;
+		if (!sk_X509_ALGOR_push(md_sk,alg))
+			{
+			X509_ALGOR_free(alg);
+			return 0;
+			}
+		}
+
+	if (!sk_PKCS7_SIGNER_INFO_push(signer_sk,psi))
+		return 0;
+	return(1);
+	}
+
+EXPORT_C int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
+	{
+	int i;
+	STACK_OF(X509) **sk;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signed:
+		sk= &(p7->d.sign->cert);
+		break;
+	case NID_pkcs7_signedAndEnveloped:
+		sk= &(p7->d.signed_and_enveloped->cert);
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
+		return(0);
+		}
+
+	if (*sk == NULL)
+		*sk=sk_X509_new_null();
+	if (*sk == NULL)
+		{
+		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,ERR_R_MALLOC_FAILURE);
+		return 0;
+		}
+	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
+	if (!sk_X509_push(*sk,x509))
+		{
+		X509_free(x509);
+		return 0;
+		}
+	return(1);
+	}
+
+EXPORT_C int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
+	{
+	int i;
+	STACK_OF(X509_CRL) **sk;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signed:
+		sk= &(p7->d.sign->crl);
+		break;
+	case NID_pkcs7_signedAndEnveloped:
+		sk= &(p7->d.signed_and_enveloped->crl);
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
+		return(0);
+		}
+
+	if (*sk == NULL)
+		*sk=sk_X509_CRL_new_null();
+	if (*sk == NULL)
+		{
+		PKCS7err(PKCS7_F_PKCS7_ADD_CRL,ERR_R_MALLOC_FAILURE);
+		return 0;
+		}
+
+	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
+	if (!sk_X509_CRL_push(*sk,crl))
+		{
+		X509_CRL_free(crl);
+		return 0;
+		}
+	return(1);
+	}
+
+EXPORT_C int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
+	     const EVP_MD *dgst)
+	{
+	int nid;
+	char is_dsa;
+
+	if (pkey->type == EVP_PKEY_DSA || pkey->type == EVP_PKEY_EC)
+		is_dsa = 1;
+	else
+		is_dsa = 0;
+	/* We now need to add another PKCS7_SIGNER_INFO entry */
+	if (!ASN1_INTEGER_set(p7i->version,1))
+		goto err;
+	if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
+			X509_get_issuer_name(x509)))
+		goto err;
+
+	/* because ASN1_INTEGER_set is used to set a 'long' we will do
+	 * things the ugly way. */
+	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
+	if (!(p7i->issuer_and_serial->serial=
+			M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
+		goto err;
+
+	/* lets keep the pkey around for a while */
+	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
+	p7i->pkey=pkey;
+
+	/* Set the algorithms */
+	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
+	else	
+		p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
+
+	if (p7i->digest_alg->parameter != NULL)
+		ASN1_TYPE_free(p7i->digest_alg->parameter);
+	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
+		goto err;
+	p7i->digest_alg->parameter->type=V_ASN1_NULL;
+
+	if (p7i->digest_enc_alg->parameter != NULL)
+		ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
+	nid = EVP_PKEY_type(pkey->type);
+	if (nid == EVP_PKEY_RSA)
+		{
+		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
+		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
+			goto err;
+		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
+		}
+	else if (nid == EVP_PKEY_DSA)
+		{
+#if 1
+		/* use 'dsaEncryption' OID for compatibility with other software
+		 * (PKCS #7 v1.5 does specify how to handle DSA) ... */
+		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
+#else
+		/* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
+		 * would make more sense. */
+		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
+#endif
+		p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
+		}
+	else if (nid == EVP_PKEY_EC)
+		{
+		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
+		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
+			goto err;
+		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
+		}
+	else
+		return(0);
+
+	return(1);
+err:
+	return(0);
+	}
+
+EXPORT_C PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
+	     const EVP_MD *dgst)
+	{
+	PKCS7_SIGNER_INFO *si;
+
+	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
+	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
+	if (!PKCS7_add_signer(p7,si)) goto err;
+	return(si);
+err:
+	PKCS7_SIGNER_INFO_free(si);
+	return(NULL);
+	}
+
+EXPORT_C int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
+	{
+	if (PKCS7_type_is_digest(p7))
+		{
+		if(!(p7->d.digest->md->parameter = ASN1_TYPE_new()))
+			{
+			PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,ERR_R_MALLOC_FAILURE);
+			return 0;
+			}
+		p7->d.digest->md->parameter->type = V_ASN1_NULL;
+		p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
+		return 1;
+		}
+		
+	PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,PKCS7_R_WRONG_CONTENT_TYPE);
+	return 1;
+	}
+
+EXPORT_C STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
+	{
+	if (PKCS7_type_is_signed(p7))
+		{
+		return(p7->d.sign->signer_info);
+		}
+	else if (PKCS7_type_is_signedAndEnveloped(p7))
+		{
+		return(p7->d.signed_and_enveloped->signer_info);
+		}
+	else
+		return(NULL);
+	}
+
+EXPORT_C PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
+	{
+	PKCS7_RECIP_INFO *ri;
+
+	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
+	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
+	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
+	return(ri);
+err:
+	PKCS7_RECIP_INFO_free(ri);
+	return(NULL);
+	}
+
+EXPORT_C int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
+	{
+	int i;
+	STACK_OF(PKCS7_RECIP_INFO) *sk;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signedAndEnveloped:
+		sk=	p7->d.signed_and_enveloped->recipientinfo;
+		break;
+	case NID_pkcs7_enveloped:
+		sk=	p7->d.enveloped->recipientinfo;
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
+		return(0);
+		}
+
+	if (!sk_PKCS7_RECIP_INFO_push(sk,ri))
+		return 0;
+	return(1);
+	}
+
+EXPORT_C int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
+	{
+	if (!ASN1_INTEGER_set(p7i->version,0))
+		return 0;
+	if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
+		X509_get_issuer_name(x509)))
+		return 0;
+
+	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
+	if (!(p7i->issuer_and_serial->serial=
+		M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
+		return 0;
+
+	X509_ALGOR_free(p7i->key_enc_algor);
+	if (!(p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor)))
+		return 0;
+
+	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
+	p7i->cert=x509;
+
+	return(1);
+	}
+
+EXPORT_C X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
+	{
+	if (PKCS7_type_is_signed(p7))
+		return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
+			si->issuer_and_serial->issuer,
+			si->issuer_and_serial->serial));
+	else
+		return(NULL);
+	}
+
+EXPORT_C int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
+	{
+	int i;
+	ASN1_OBJECT *objtmp;
+	PKCS7_ENC_CONTENT *ec;
+
+	i=OBJ_obj2nid(p7->type);
+	switch (i)
+		{
+	case NID_pkcs7_signedAndEnveloped:
+		ec=p7->d.signed_and_enveloped->enc_data;
+		break;
+	case NID_pkcs7_enveloped:
+		ec=p7->d.enveloped->enc_data;
+		break;
+	default:
+		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
+		return(0);
+		}
+
+	/* Check cipher OID exists and has data in it*/
+	i = EVP_CIPHER_type(cipher);
+	if(i == NID_undef) {
+		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
+		return(0);
+	}
+	objtmp = OBJ_nid2obj(i);
+
+	ec->cipher = cipher;
+	return 1;
+	}
+