1 files changed, 477 insertions, 0 deletions

diff --git a/src/lib/libcrypto/pkcs7/pk7_lib.c b/src/lib/libcrypto/pkcs7/pk7_lib.c
new file mode 100644
index 0000000000..c00ed6833a
--- /dev/null
+++ b/src/lib/libcrypto/pkcs7/pk7_lib.c
@@ -0,0 +1,477 @@
+/* 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>
+
+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;
+                        }
+                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);
+        }
+
+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);
+        }
+
+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:
+        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);
+        }
+
+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;
+                ASN1_INTEGER_set(p7->d.sign->version,1);
+                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);
+                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;
+                ASN1_INTEGER_set(p7->d.enveloped->version,0);
+                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;
+                ASN1_INTEGER_set(p7->d.encrypted->version,0);
+                p7->d.encrypted->enc_data->content_type
+                                                = OBJ_nid2obj(NID_pkcs7_data);
+                break;
+
+        case NID_pkcs7_digest:
+        default:
+                PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
+                goto err;
+                }
+        return(1);
+err:
+        return(0);
+        }
+
+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())) {
+                        PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
+                        return(0);
+                }
+                alg->algorithm=OBJ_nid2obj(nid);
+                alg->parameter->type = V_ASN1_NULL;
+                sk_X509_ALGOR_push(md_sk,alg);
+                }
+
+        sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
+        return(1);
+        }
+
+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();
+        CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
+        sk_X509_push(*sk,x509);
+        return(1);
+        }
+
+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();
+
+        CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
+        sk_X509_CRL_push(*sk,crl);
+        return(1);
+        }
+
+int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
+             const EVP_MD *dgst)
+        {
+        char is_dsa;
+        if (pkey->type == EVP_PKEY_DSA) is_dsa = 1;
+        else is_dsa = 0;
+        /* We now need to add another PKCS7_SIGNER_INFO entry */
+        ASN1_INTEGER_set(p7i->version,1);
+        X509_NAME_set(&p7i->issuer_and_serial->issuer,
+                X509_get_issuer_name(x509));
+
+        /* 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);
+        p7i->issuer_and_serial->serial=
+                M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
+
+        /* 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;
+
+        p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_PKEY_type(pkey->type));
+
+        if (p7i->digest_enc_alg->parameter != NULL)
+                ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
+        if(is_dsa) p7i->digest_enc_alg->parameter = NULL;
+        else {
+                if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
+                        goto err;
+                p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
+        }
+
+        return(1);
+err:
+        return(0);
+        }
+
+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:
+        return(NULL);
+        }
+
+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);
+        }
+
+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:
+        return(NULL);
+        }
+
+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);
+                }
+
+        sk_PKCS7_RECIP_INFO_push(sk,ri);
+        return(1);
+        }
+
+int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
+        {
+        ASN1_INTEGER_set(p7i->version,0);
+        X509_NAME_set(&p7i->issuer_and_serial->issuer,
+                X509_get_issuer_name(x509));
+
+        M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
+        p7i->issuer_and_serial->serial=
+                M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
+
+        X509_ALGOR_free(p7i->key_enc_algor);
+        p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
+
+        CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
+        p7i->cert=x509;
+
+        return(1);
+        }
+
+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);
+        }
+
+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;
+        }
+