diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/pkcs7/pk7_asn1.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/pkcs7/pk7_asn1.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/pkcs7/pk7_asn1.c b/openssl-1.1.0h/crypto/pkcs7/pk7_asn1.c new file mode 100644 index 0000000..cd9fb4f --- /dev/null +++ b/openssl-1.1.0h/crypto/pkcs7/pk7_asn1.c @@ -0,0 +1,202 @@ +/* + * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/pkcs7.h> +#include <openssl/x509.h> + +/* PKCS#7 ASN1 module */ + +/* This is the ANY DEFINED BY table for the top level PKCS#7 structure */ + +ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0); + +ASN1_ADB(PKCS7) = { + ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)), + ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)), + ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)), + ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)), + ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)), + ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0)) +} ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL); + +/* PKCS#7 streaming support */ +static int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, + void *exarg) +{ + ASN1_STREAM_ARG *sarg = exarg; + PKCS7 **pp7 = (PKCS7 **)pval; + + switch (operation) { + + case ASN1_OP_STREAM_PRE: + if (PKCS7_stream(&sarg->boundary, *pp7) <= 0) + return 0; + /* fall thru */ + case ASN1_OP_DETACHED_PRE: + sarg->ndef_bio = PKCS7_dataInit(*pp7, sarg->out); + if (!sarg->ndef_bio) + return 0; + break; + + case ASN1_OP_STREAM_POST: + case ASN1_OP_DETACHED_POST: + if (PKCS7_dataFinal(*pp7, sarg->ndef_bio) <= 0) + return 0; + break; + + } + return 1; +} + +ASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = { + ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT), + ASN1_ADB_OBJECT(PKCS7) +}ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7) + +IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7) + +IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7) + +ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = { + ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER), + ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR), + ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7), + ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0), + ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1), + ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO) +} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED) + +/* Minor tweak to operation: free up EVP_PKEY */ +static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, + void *exarg) +{ + if (operation == ASN1_OP_FREE_POST) { + PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval; + EVP_PKEY_free(si->pkey); + } + return 1; +} + +ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = { + ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER), + ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), + ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR), + /* NB this should be a SET OF but we use a SEQUENCE OF so the + * original order * is retained when the structure is reencoded. + * Since the attributes are implicitly tagged this will not affect + * the encoding. + */ + ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0), + ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR), + ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING), + ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1) +} ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO) + +ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = { + ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME), + ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER) +} ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL) + +ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = { + ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER), + ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), + ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT) +} ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE) + +/* Minor tweak to operation: free up X509 */ +static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, + void *exarg) +{ + if (operation == ASN1_OP_FREE_POST) { + PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval; + X509_free(ri->cert); + } + return 1; +} + +ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = { + ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER), + ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL), + ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR), + ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING) +} ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO) + +ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = { + ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT), + ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR), + ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0) +} ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT) + +ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = { + ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER), + ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO), + ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR), + ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT), + ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0), + ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1), + ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO) +} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE) + +ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = { + ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER), + ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT) +} ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT) + +ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = { + ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER), + ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR), + ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7), + ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING) +} ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST) + +IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST) + +/* Specials for authenticated attributes */ + +/* + * When signing attributes we want to reorder them to match the sorted + * encoding. + */ + +ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) +ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN) + +/* + * When verifying attributes we need to use the received order. So we use + * SEQUENCE OF and tag it to SET OF + */ + +ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, + V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE) +ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY) + +IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7) |