1 files changed, 623 insertions, 0 deletions

diff --git a/src/lib/libcrypto/cms/cms_lib.c b/src/lib/libcrypto/cms/cms_lib.c
new file mode 100644
index 0000000000..8e6c1d29a5
--- /dev/null
+++ b/src/lib/libcrypto/cms/cms_lib.c
@@ -0,0 +1,623 @@
+/* crypto/cms/cms_lib.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ */
+
+#include <openssl/asn1t.h>
+#include <openssl/x509.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/bio.h>
+#include <openssl/asn1.h>
+#include "cms.h"
+#include "cms_lcl.h"
+
+IMPLEMENT_ASN1_FUNCTIONS_const(CMS_ContentInfo)
+
+DECLARE_ASN1_ITEM(CMS_CertificateChoices)
+DECLARE_ASN1_ITEM(CMS_RevocationInfoChoice)
+DECLARE_STACK_OF(CMS_CertificateChoices)
+DECLARE_STACK_OF(CMS_RevocationInfoChoice)
+
+const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms)
+        {
+        return cms->contentType;
+        }
+
+CMS_ContentInfo *cms_Data_create(void)
+        {
+        CMS_ContentInfo *cms;
+        cms = CMS_ContentInfo_new();
+        if (cms)
+                {
+                cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
+                /* Never detached */
+                CMS_set_detached(cms, 0);
+                }
+        return cms;
+        }
+
+BIO *cms_content_bio(CMS_ContentInfo *cms)
+        {
+        ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
+        if (!pos)
+                return NULL;
+        /* If content detached data goes nowhere: create NULL BIO */
+        if (!*pos)
+                return BIO_new(BIO_s_null());
+        /* If content not detached and created return memory BIO
+         */
+        if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
+                return BIO_new(BIO_s_mem());
+        /* Else content was read in: return read only BIO for it */
+        return BIO_new_mem_buf((*pos)->data, (*pos)->length);
+        }
+
+BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
+        {
+        BIO *cmsbio, *cont;
+        if (icont)
+                cont = icont;
+        else
+                cont = cms_content_bio(cms);
+        if (!cont)
+                {
+                CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT);
+                return NULL;
+                }
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_data:
+                return cont;
+
+                case NID_pkcs7_signed:
+                cmsbio = cms_SignedData_init_bio(cms);
+                break;
+
+                case NID_pkcs7_digest:
+                cmsbio = cms_DigestedData_init_bio(cms);
+                break;
+#ifdef ZLIB
+                case NID_id_smime_ct_compressedData:
+                cmsbio = cms_CompressedData_init_bio(cms);
+                break;
+#endif
+
+                case NID_pkcs7_encrypted:
+                cmsbio = cms_EncryptedData_init_bio(cms);
+                break;
+
+                case NID_pkcs7_enveloped:
+                cmsbio = cms_EnvelopedData_init_bio(cms);
+                break;
+
+                default:
+                CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE);
+                return NULL;
+                }
+
+        if (cmsbio)
+                return BIO_push(cmsbio, cont);
+
+        if (!icont)
+                BIO_free(cont);
+        return NULL;
+
+        }
+
+int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
+        {
+        ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
+        if (!pos)
+                return 0;
+        /* If ebmedded content find memory BIO and set content */
+        if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT))
+                {
+                BIO *mbio;
+                unsigned char *cont;
+                long contlen;
+                mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
+                if (!mbio)
+                        {
+                        CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
+                        return 0;
+                        }
+                contlen = BIO_get_mem_data(mbio, &cont);
+                /* Set bio as read only so its content can't be clobbered */
+                BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
+                BIO_set_mem_eof_return(mbio, 0);
+                ASN1_STRING_set0(*pos, cont, contlen);
+                (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
+                }
+
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_data:
+                case NID_pkcs7_enveloped:
+                case NID_pkcs7_encrypted:
+                case NID_id_smime_ct_compressedData:
+                /* Nothing to do */
+                return 1;
+
+                case NID_pkcs7_signed:
+                return cms_SignedData_final(cms, cmsbio);
+
+                case NID_pkcs7_digest:
+                return cms_DigestedData_do_final(cms, cmsbio, 0);
+
+                default:
+                CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
+                return 0;
+                }
+        }
+
+/* Return an OCTET STRING pointer to content. This allows it to
+ * be accessed or set later.
+ */
+
+ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
+        {
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_data:
+                return &cms->d.data;
+
+                case NID_pkcs7_signed:
+                return &cms->d.signedData->encapContentInfo->eContent;
+
+                case NID_pkcs7_enveloped:
+                return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
+
+                case NID_pkcs7_digest:
+                return &cms->d.digestedData->encapContentInfo->eContent;
+
+                case NID_pkcs7_encrypted:
+                return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
+
+                case NID_id_smime_ct_authData:
+                return &cms->d.authenticatedData->encapContentInfo->eContent;
+
+                case NID_id_smime_ct_compressedData:
+                return &cms->d.compressedData->encapContentInfo->eContent;
+
+                default:
+                if (cms->d.other->type == V_ASN1_OCTET_STRING)
+                        return &cms->d.other->value.octet_string;
+                CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
+                return NULL;
+
+                }
+        }
+
+/* Return an ASN1_OBJECT pointer to content type. This allows it to
+ * be accessed or set later.
+ */
+
+static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
+        {
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_signed:
+                return &cms->d.signedData->encapContentInfo->eContentType;
+
+                case NID_pkcs7_enveloped:
+                return &cms->d.envelopedData->encryptedContentInfo->contentType;
+
+                case NID_pkcs7_digest:
+                return &cms->d.digestedData->encapContentInfo->eContentType;
+
+                case NID_pkcs7_encrypted:
+                return &cms->d.encryptedData->encryptedContentInfo->contentType;
+
+                case NID_id_smime_ct_authData:
+                return &cms->d.authenticatedData->encapContentInfo->eContentType;
+
+                case NID_id_smime_ct_compressedData:
+                return &cms->d.compressedData->encapContentInfo->eContentType;
+
+                default:
+                CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE,
+                                        CMS_R_UNSUPPORTED_CONTENT_TYPE);
+                return NULL;
+
+                }
+        }
+
+const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
+        {
+        ASN1_OBJECT **petype;
+        petype = cms_get0_econtent_type(cms);
+        if (petype)
+                return *petype;
+        return NULL;
+        }
+
+int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
+        {
+        ASN1_OBJECT **petype, *etype;
+        petype = cms_get0_econtent_type(cms);
+        if (!petype)
+                return 0;
+        if (!oid)
+                return 1;
+        etype = OBJ_dup(oid);
+        if (!etype)
+                return 0;
+        ASN1_OBJECT_free(*petype);
+        *petype = etype;
+        return 1;
+        }
+
+int CMS_is_detached(CMS_ContentInfo *cms)
+        {
+        ASN1_OCTET_STRING **pos;
+        pos = CMS_get0_content(cms);
+        if (!pos)
+                return -1;
+        if (*pos)
+                return 0;
+        return 1;
+        }
+
+int CMS_set_detached(CMS_ContentInfo *cms, int detached)
+        {
+        ASN1_OCTET_STRING **pos;
+        pos = CMS_get0_content(cms);
+        if (!pos)
+                return 0;
+        if (detached)
+                {
+                if (*pos)
+                        {
+                        ASN1_OCTET_STRING_free(*pos);
+                        *pos = NULL;
+                        }
+                return 1;
+                }
+        if (!*pos)
+                *pos = ASN1_OCTET_STRING_new();
+        if (*pos)
+                {
+                /* NB: special flag to show content is created and not
+                 * read in.
+                 */
+                (*pos)->flags |= ASN1_STRING_FLAG_CONT;
+                return 1;
+                }
+        CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
+        return 0;
+        }
+
+/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
+
+void cms_DigestAlgorithm_set(X509_ALGOR *alg, const EVP_MD *md)
+        {
+        int param_type;
+
+        switch (EVP_MD_type(md))
+                {
+                case NID_sha1:
+                case NID_sha224:
+                case NID_sha256:
+                case NID_sha384:
+                case NID_sha512:
+                param_type = V_ASN1_UNDEF;
+                break;
+        
+                default:
+                param_type = V_ASN1_NULL;
+                break;
+                }
+
+        X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
+
+        }
+
+/* Create a digest BIO from an X509_ALGOR structure */
+
+BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
+        {
+        BIO *mdbio = NULL;
+        ASN1_OBJECT *digestoid;
+        const EVP_MD *digest;
+        X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
+        digest = EVP_get_digestbyobj(digestoid);
+        if (!digest)
+                {
+                CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
+                                CMS_R_UNKNOWN_DIGEST_ALGORIHM);
+                goto err;       
+                }
+        mdbio = BIO_new(BIO_f_md());
+        if (!mdbio || !BIO_set_md(mdbio, digest))
+                {
+                CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
+                                CMS_R_MD_BIO_INIT_ERROR);
+                goto err;       
+                }
+        return mdbio;
+        err:
+        if (mdbio)
+                BIO_free(mdbio);
+        return NULL;
+        }
+
+/* Locate a message digest content from a BIO chain based on SignerInfo */
+
+int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
+                                        X509_ALGOR *mdalg)
+        {
+        int nid;
+        ASN1_OBJECT *mdoid;
+        X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
+        nid = OBJ_obj2nid(mdoid);
+        /* Look for digest type to match signature */
+        for (;;)
+                {
+                EVP_MD_CTX *mtmp;
+                chain = BIO_find_type(chain, BIO_TYPE_MD);
+                if (chain == NULL)
+                        {
+                        CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
+                                                CMS_R_NO_MATCHING_DIGEST);
+                        return 0;
+                        }
+                BIO_get_md_ctx(chain, &mtmp);
+                if (EVP_MD_CTX_type(mtmp) == nid)
+                        {
+                        EVP_MD_CTX_copy_ex(mctx, mtmp);
+                        return 1;
+                        }
+                chain = BIO_next(chain);
+                }
+        }
+
+static STACK_OF(CMS_CertificateChoices) **cms_get0_certificate_choices(CMS_ContentInfo *cms)
+        {
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_signed:
+                return &cms->d.signedData->certificates;
+
+                case NID_pkcs7_enveloped:
+                return &cms->d.envelopedData->originatorInfo->certificates;
+
+                default:
+                CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
+                                        CMS_R_UNSUPPORTED_CONTENT_TYPE);
+                return NULL;
+
+                }
+        }
+
+CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
+        {
+        STACK_OF(CMS_CertificateChoices) **pcerts;
+        CMS_CertificateChoices *cch;
+        pcerts = cms_get0_certificate_choices(cms);
+        if (!pcerts)
+                return NULL;
+        if (!*pcerts)
+                *pcerts = sk_CMS_CertificateChoices_new_null();
+        if (!*pcerts)
+                return NULL;
+        cch = M_ASN1_new_of(CMS_CertificateChoices);
+        if (!cch)
+                return NULL;
+        if (!sk_CMS_CertificateChoices_push(*pcerts, cch))
+                {
+                M_ASN1_free_of(cch, CMS_CertificateChoices);
+                return NULL;
+                }
+        return cch;
+        }
+
+int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
+        {
+        CMS_CertificateChoices *cch;
+        STACK_OF(CMS_CertificateChoices) **pcerts;
+        int i;
+        pcerts = cms_get0_certificate_choices(cms);
+        if (!pcerts)
+                return 0;
+        if (!pcerts)
+                return 0;
+        for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++)
+                {
+                cch = sk_CMS_CertificateChoices_value(*pcerts, i);
+                if (cch->type == CMS_CERTCHOICE_CERT)
+                        {
+                        if (!X509_cmp(cch->d.certificate, cert))
+                                {
+                                CMSerr(CMS_F_CMS_ADD0_CERT, 
+                                        CMS_R_CERTIFICATE_ALREADY_PRESENT);
+                                return 0;
+                                }
+                        }
+                }
+        cch = CMS_add0_CertificateChoices(cms);
+        if (!cch)
+                return 0;
+        cch->type = CMS_CERTCHOICE_CERT;
+        cch->d.certificate = cert;
+        return 1;
+        }
+
+int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
+        {
+        int r;
+        r = CMS_add0_cert(cms, cert);
+        if (r > 0)
+                CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
+        return r;
+        }
+
+static STACK_OF(CMS_RevocationInfoChoice) **cms_get0_revocation_choices(CMS_ContentInfo *cms)
+        {
+        switch (OBJ_obj2nid(cms->contentType))
+                {
+
+                case NID_pkcs7_signed:
+                return &cms->d.signedData->crls;
+
+                case NID_pkcs7_enveloped:
+                return &cms->d.envelopedData->originatorInfo->crls;
+
+                default:
+                CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
+                                        CMS_R_UNSUPPORTED_CONTENT_TYPE);
+                return NULL;
+
+                }
+        }
+
+CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
+        {
+        STACK_OF(CMS_RevocationInfoChoice) **pcrls;
+        CMS_RevocationInfoChoice *rch;
+        pcrls = cms_get0_revocation_choices(cms);
+        if (!pcrls)
+                return NULL;
+        if (!*pcrls)
+                *pcrls = sk_CMS_RevocationInfoChoice_new_null();
+        if (!*pcrls)
+                return NULL;
+        rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
+        if (!rch)
+                return NULL;
+        if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch))
+                {
+                M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
+                return NULL;
+                }
+        return rch;
+        }
+
+int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
+        {
+        CMS_RevocationInfoChoice *rch;
+        rch = CMS_add0_RevocationInfoChoice(cms);
+        if (!rch)
+                return 0;
+        rch->type = CMS_REVCHOICE_CRL;
+        rch->d.crl = crl;
+        return 1;
+        }
+
+STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
+        {
+        STACK_OF(X509) *certs = NULL;
+        CMS_CertificateChoices *cch;
+        STACK_OF(CMS_CertificateChoices) **pcerts;
+        int i;
+        pcerts = cms_get0_certificate_choices(cms);
+        if (!pcerts)
+                return NULL;
+        for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++)
+                {
+                cch = sk_CMS_CertificateChoices_value(*pcerts, i);
+                if (cch->type == 0)
+                        {
+                        if (!certs)
+                                {
+                                certs = sk_X509_new_null();
+                                if (!certs)
+                                        return NULL;
+                                }
+                        if (!sk_X509_push(certs, cch->d.certificate))
+                                {
+                                sk_X509_pop_free(certs, X509_free);
+                                return NULL;
+                                }
+                        CRYPTO_add(&cch->d.certificate->references,
+                                                1, CRYPTO_LOCK_X509);
+                        }
+                }
+        return certs;
+
+        }
+
+STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
+        {
+        STACK_OF(X509_CRL) *crls = NULL;
+        STACK_OF(CMS_RevocationInfoChoice) **pcrls;
+        CMS_RevocationInfoChoice *rch;
+        int i;
+        pcrls = cms_get0_revocation_choices(cms);
+        if (!pcrls)
+                return NULL;
+        for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++)
+                {
+                rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
+                if (rch->type == 0)
+                        {
+                        if (!crls)
+                                {
+                                crls = sk_X509_CRL_new_null();
+                                if (!crls)
+                                        return NULL;
+                                }
+                        if (!sk_X509_CRL_push(crls, rch->d.crl))
+                                {
+                                sk_X509_CRL_pop_free(crls, X509_CRL_free);
+                                return NULL;
+                                }
+                        CRYPTO_add(&rch->d.crl->references,
+                                                1, CRYPTO_LOCK_X509_CRL);
+                        }
+                }
+        return crls;
+        }