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osslsigncode.c
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osslsigncode.c
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/*
OpenSSL based Authenticode signing for PE/MSI/Java CAB files.
Copyright (C) 2005-2015 Per Allansson <pallansson@gmail.com>
Copyright (C) 2018 Michał Trojnara <Michal.Trojnara@stunnel.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
*/
/*
Implemented with good help from:
* Peter Gutmann's analysis of Authenticode:
http://www.cs.auckland.ac.nz/~pgut001/pubs/authenticode.txt
* MS CAB SDK documentation
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncabsdk/html/cabdl.asp
* MS PE/COFF documentation
http://www.microsoft.com/whdc/system/platform/firmware/PECOFF.mspx
* MS Windows Authenticode PE Signature Format
http://msdn.microsoft.com/en-US/windows/hardware/gg463183
(Although the part of how the actual checksumming is done is not
how it is done inside Windows. The end result is however the same
on all "normal" PE files.)
* tail -c, tcpdump, mimencode & openssl asn1parse :)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_WINDOWS_H
#define NOCRYPT
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
typedef unsigned char u_char;
#endif
#include <stdio.h>
#include <stdlib.h>
#ifndef _WIN32
#include <unistd.h>
#endif
#include <string.h>
#include <time.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifndef _WIN32
#ifdef HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
#ifdef HAVE_TERMIOS_H
#include <termios.h>
#endif
#endif
#ifdef WITH_GSF
#include <gsf/gsf-infile-msole.h>
#include <gsf/gsf-infile.h>
#include <gsf/gsf-input-stdio.h>
#include <gsf/gsf-outfile-msole.h>
#include <gsf/gsf-outfile.h>
#include <gsf/gsf-output-stdio.h>
#include <gsf/gsf-utils.h>
#endif
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs7.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include <openssl/asn1t.h>
#include <openssl/conf.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#ifdef ENABLE_CURL
#ifdef __CYGWIN__
#ifndef SOCKET
#define SOCKET UINT_PTR
#endif
#endif
#include <curl/curl.h>
#define MAX_TS_SERVERS 256
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#if defined (HAVE_TERMIOS_H) || defined (HAVE_GETPASS)
#define PROVIDE_ASKPASS 1
#endif
/* MS Authenticode object ids */
#define SPC_INDIRECT_DATA_OBJID "1.3.6.1.4.1.311.2.1.4"
#define SPC_STATEMENT_TYPE_OBJID "1.3.6.1.4.1.311.2.1.11"
#define SPC_SP_OPUS_INFO_OBJID "1.3.6.1.4.1.311.2.1.12"
#define SPC_INDIVIDUAL_SP_KEY_PURPOSE_OBJID "1.3.6.1.4.1.311.2.1.21"
#define SPC_COMMERCIAL_SP_KEY_PURPOSE_OBJID "1.3.6.1.4.1.311.2.1.22"
#define SPC_MS_JAVA_SOMETHING "1.3.6.1.4.1.311.15.1"
#define SPC_PE_IMAGE_DATA_OBJID "1.3.6.1.4.1.311.2.1.15"
#define SPC_CAB_DATA_OBJID "1.3.6.1.4.1.311.2.1.25"
#define SPC_TIME_STAMP_REQUEST_OBJID "1.3.6.1.4.1.311.3.2.1"
#define SPC_SIPINFO_OBJID "1.3.6.1.4.1.311.2.1.30"
#define SPC_PE_IMAGE_PAGE_HASHES_V1 "1.3.6.1.4.1.311.2.3.1" /* Page hash using SHA1 */
#define SPC_PE_IMAGE_PAGE_HASHES_V2 "1.3.6.1.4.1.311.2.3.2" /* Page hash using SHA256 */
#define SPC_NESTED_SIGNATURE_OBJID "1.3.6.1.4.1.311.2.4.1"
#define SPC_RFC3161_OBJID "1.3.6.1.4.1.311.3.3.1"
/* 1.3.6.1.4.1.311.4... MS Crypto 2.0 stuff... */
#define WIN_CERT_REVISION_2 0x0200
#define WIN_CERT_TYPE_PKCS_SIGNED_DATA 0x0002
/*
ASN.1 definitions (more or less from official MS Authenticode docs)
*/
typedef struct {
int type;
union {
ASN1_BMPSTRING *unicode;
ASN1_IA5STRING *ascii;
} value;
} SpcString;
DECLARE_ASN1_FUNCTIONS(SpcString)
ASN1_CHOICE(SpcString) = {
ASN1_IMP_OPT(SpcString, value.unicode, ASN1_BMPSTRING , 0),
ASN1_IMP_OPT(SpcString, value.ascii, ASN1_IA5STRING, 1)
} ASN1_CHOICE_END(SpcString)
IMPLEMENT_ASN1_FUNCTIONS(SpcString)
typedef struct {
ASN1_OCTET_STRING *classId;
ASN1_OCTET_STRING *serializedData;
} SpcSerializedObject;
DECLARE_ASN1_FUNCTIONS(SpcSerializedObject)
ASN1_SEQUENCE(SpcSerializedObject) = {
ASN1_SIMPLE(SpcSerializedObject, classId, ASN1_OCTET_STRING),
ASN1_SIMPLE(SpcSerializedObject, serializedData, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(SpcSerializedObject)
IMPLEMENT_ASN1_FUNCTIONS(SpcSerializedObject)
typedef struct {
int type;
union {
ASN1_IA5STRING *url;
SpcSerializedObject *moniker;
SpcString *file;
} value;
} SpcLink;
DECLARE_ASN1_FUNCTIONS(SpcLink)
ASN1_CHOICE(SpcLink) = {
ASN1_IMP_OPT(SpcLink, value.url, ASN1_IA5STRING, 0),
ASN1_IMP_OPT(SpcLink, value.moniker, SpcSerializedObject, 1),
ASN1_EXP_OPT(SpcLink, value.file, SpcString, 2)
} ASN1_CHOICE_END(SpcLink)
IMPLEMENT_ASN1_FUNCTIONS(SpcLink)
typedef struct {
SpcString *programName;
SpcLink *moreInfo;
} SpcSpOpusInfo;
DECLARE_ASN1_FUNCTIONS(SpcSpOpusInfo)
ASN1_SEQUENCE(SpcSpOpusInfo) = {
ASN1_EXP_OPT(SpcSpOpusInfo, programName, SpcString, 0),
ASN1_EXP_OPT(SpcSpOpusInfo, moreInfo, SpcLink, 1)
} ASN1_SEQUENCE_END(SpcSpOpusInfo)
IMPLEMENT_ASN1_FUNCTIONS(SpcSpOpusInfo)
typedef struct {
ASN1_OBJECT *type;
ASN1_TYPE *value;
} SpcAttributeTypeAndOptionalValue;
DECLARE_ASN1_FUNCTIONS(SpcAttributeTypeAndOptionalValue)
ASN1_SEQUENCE(SpcAttributeTypeAndOptionalValue) = {
ASN1_SIMPLE(SpcAttributeTypeAndOptionalValue, type, ASN1_OBJECT),
ASN1_OPT(SpcAttributeTypeAndOptionalValue, value, ASN1_ANY)
} ASN1_SEQUENCE_END(SpcAttributeTypeAndOptionalValue)
IMPLEMENT_ASN1_FUNCTIONS(SpcAttributeTypeAndOptionalValue)
typedef struct {
ASN1_OBJECT *algorithm;
ASN1_TYPE *parameters;
} AlgorithmIdentifier;
DECLARE_ASN1_FUNCTIONS(AlgorithmIdentifier)
ASN1_SEQUENCE(AlgorithmIdentifier) = {
ASN1_SIMPLE(AlgorithmIdentifier, algorithm, ASN1_OBJECT),
ASN1_OPT(AlgorithmIdentifier, parameters, ASN1_ANY)
} ASN1_SEQUENCE_END(AlgorithmIdentifier)
IMPLEMENT_ASN1_FUNCTIONS(AlgorithmIdentifier)
typedef struct {
AlgorithmIdentifier *digestAlgorithm;
ASN1_OCTET_STRING *digest;
} DigestInfo;
DECLARE_ASN1_FUNCTIONS(DigestInfo)
ASN1_SEQUENCE(DigestInfo) = {
ASN1_SIMPLE(DigestInfo, digestAlgorithm, AlgorithmIdentifier),
ASN1_SIMPLE(DigestInfo, digest, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(DigestInfo)
IMPLEMENT_ASN1_FUNCTIONS(DigestInfo)
typedef struct {
SpcAttributeTypeAndOptionalValue *data;
DigestInfo *messageDigest;
} SpcIndirectDataContent;
DECLARE_ASN1_FUNCTIONS(SpcIndirectDataContent)
ASN1_SEQUENCE(SpcIndirectDataContent) = {
ASN1_SIMPLE(SpcIndirectDataContent, data, SpcAttributeTypeAndOptionalValue),
ASN1_SIMPLE(SpcIndirectDataContent, messageDigest, DigestInfo)
} ASN1_SEQUENCE_END(SpcIndirectDataContent)
IMPLEMENT_ASN1_FUNCTIONS(SpcIndirectDataContent)
typedef struct {
ASN1_BIT_STRING* flags;
SpcLink *file;
} SpcPeImageData;
DECLARE_ASN1_FUNCTIONS(SpcPeImageData)
ASN1_SEQUENCE(SpcPeImageData) = {
ASN1_SIMPLE(SpcPeImageData, flags, ASN1_BIT_STRING),
ASN1_EXP_OPT(SpcPeImageData, file, SpcLink, 0)
} ASN1_SEQUENCE_END(SpcPeImageData)
IMPLEMENT_ASN1_FUNCTIONS(SpcPeImageData)
typedef struct {
ASN1_INTEGER *a;
ASN1_OCTET_STRING *string;
ASN1_INTEGER *b;
ASN1_INTEGER *c;
ASN1_INTEGER *d;
ASN1_INTEGER *e;
ASN1_INTEGER *f;
} SpcSipInfo;
DECLARE_ASN1_FUNCTIONS(SpcSipInfo)
ASN1_SEQUENCE(SpcSipInfo) = {
ASN1_SIMPLE(SpcSipInfo, a, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, string, ASN1_OCTET_STRING),
ASN1_SIMPLE(SpcSipInfo, b, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, c, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, d, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, e, ASN1_INTEGER),
ASN1_SIMPLE(SpcSipInfo, f, ASN1_INTEGER),
} ASN1_SEQUENCE_END(SpcSipInfo)
IMPLEMENT_ASN1_FUNCTIONS(SpcSipInfo)
#ifdef ENABLE_CURL
typedef struct {
ASN1_OBJECT *type;
ASN1_OCTET_STRING *signature;
} TimeStampRequestBlob;
DECLARE_ASN1_FUNCTIONS(TimeStampRequestBlob)
ASN1_SEQUENCE(TimeStampRequestBlob) = {
ASN1_SIMPLE(TimeStampRequestBlob, type, ASN1_OBJECT),
ASN1_EXP_OPT(TimeStampRequestBlob, signature, ASN1_OCTET_STRING, 0)
} ASN1_SEQUENCE_END(TimeStampRequestBlob)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampRequestBlob)
typedef struct {
ASN1_OBJECT *type;
TimeStampRequestBlob *blob;
} TimeStampRequest;
DECLARE_ASN1_FUNCTIONS(TimeStampRequest)
ASN1_SEQUENCE(TimeStampRequest) = {
ASN1_SIMPLE(TimeStampRequest, type, ASN1_OBJECT),
ASN1_SIMPLE(TimeStampRequest, blob, TimeStampRequestBlob)
} ASN1_SEQUENCE_END(TimeStampRequest)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampRequest)
/* RFC3161 Time stamping */
typedef struct {
ASN1_INTEGER *status;
STACK_OF(ASN1_UTF8STRING) *statusString;
ASN1_BIT_STRING *failInfo;
} PKIStatusInfo;
DECLARE_ASN1_FUNCTIONS(PKIStatusInfo)
ASN1_SEQUENCE(PKIStatusInfo) = {
ASN1_SIMPLE(PKIStatusInfo, status, ASN1_INTEGER),
ASN1_SEQUENCE_OF_OPT(PKIStatusInfo, statusString, ASN1_UTF8STRING),
ASN1_OPT(PKIStatusInfo, failInfo, ASN1_BIT_STRING)
} ASN1_SEQUENCE_END(PKIStatusInfo)
IMPLEMENT_ASN1_FUNCTIONS(PKIStatusInfo)
typedef struct {
PKIStatusInfo *status;
PKCS7 *token;
} TimeStampResp;
DECLARE_ASN1_FUNCTIONS(TimeStampResp)
ASN1_SEQUENCE(TimeStampResp) = {
ASN1_SIMPLE(TimeStampResp, status, PKIStatusInfo),
ASN1_OPT(TimeStampResp, token, PKCS7)
} ASN1_SEQUENCE_END(TimeStampResp)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampResp)
typedef struct {
AlgorithmIdentifier *digestAlgorithm;
ASN1_OCTET_STRING *digest;
} MessageImprint;
DECLARE_ASN1_FUNCTIONS(MessageImprint)
ASN1_SEQUENCE(MessageImprint) = {
ASN1_SIMPLE(MessageImprint, digestAlgorithm, AlgorithmIdentifier),
ASN1_SIMPLE(MessageImprint, digest, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(MessageImprint)
IMPLEMENT_ASN1_FUNCTIONS(MessageImprint)
typedef struct {
ASN1_INTEGER *version;
MessageImprint *messageImprint;
ASN1_OBJECT *reqPolicy;
ASN1_INTEGER *nonce;
ASN1_BOOLEAN *certReq;
STACK_OF(X509_EXTENSION) *extensions;
} TimeStampReq;
DECLARE_ASN1_FUNCTIONS(TimeStampReq)
ASN1_SEQUENCE(TimeStampReq) = {
ASN1_SIMPLE(TimeStampReq, version, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampReq, messageImprint, MessageImprint),
ASN1_OPT (TimeStampReq, reqPolicy, ASN1_OBJECT),
ASN1_OPT (TimeStampReq, nonce, ASN1_INTEGER),
ASN1_SIMPLE(TimeStampReq, certReq, ASN1_BOOLEAN),
ASN1_IMP_SEQUENCE_OF_OPT(TimeStampReq, extensions, X509_EXTENSION, 0)
} ASN1_SEQUENCE_END(TimeStampReq)
IMPLEMENT_ASN1_FUNCTIONS(TimeStampReq)
#endif /* ENABLE_CURL */
static SpcSpOpusInfo* createOpus(const char *desc, const char *url)
{
SpcSpOpusInfo *info = SpcSpOpusInfo_new();
if (desc) {
info->programName = SpcString_new();
info->programName->type = 1;
info->programName->value.ascii = ASN1_IA5STRING_new();
ASN1_STRING_set((ASN1_STRING *)info->programName->value.ascii,
(const unsigned char*)desc, strlen(desc));
}
if (url) {
info->moreInfo = SpcLink_new();
info->moreInfo->type = 0;
info->moreInfo->value.url = ASN1_IA5STRING_new();
ASN1_STRING_set((ASN1_STRING *)info->moreInfo->value.url,
(const unsigned char*)url, strlen(url));
}
return info;
}
static unsigned int asn1_simple_hdr_len(const unsigned char *p, unsigned int len) {
if (len <= 2 || p[0] > 0x31)
return 0;
return (p[1]&0x80) ? (2 + (p[1]&0x7f)) : 2;
}
static void tohex(const unsigned char *v, unsigned char *b, int len)
{
int i;
for(i=0; i<len; i++)
sprintf((char*)b+i*2, "%02X", v[i]);
b[i*2] = 0x00;
}
static int add_unauthenticated_blob(PKCS7 *sig)
{
u_char *p = NULL;
int len = 1024+4;
char prefix[] = "\x0c\x82\x04\x00---BEGIN_BLOB---"; // Length data for ASN1 attribute plus prefix
char postfix[] = "---END_BLOB---";
PKCS7_SIGNER_INFO *si = sk_PKCS7_SIGNER_INFO_value(sig->d.sign->signer_info, 0);
p = OPENSSL_malloc(len);
memset(p, 0, len);
memcpy(p, prefix, sizeof(prefix));
memcpy(p+len-sizeof(postfix), postfix, sizeof(postfix));
ASN1_STRING *astr = ASN1_STRING_new();
ASN1_STRING_set(astr, p, len);
int nid = OBJ_create("1.3.6.1.4.1.42921.1.2.1",
"unauthenticatedData",
"unauthenticatedData");
PKCS7_add_attribute (si, nid, V_ASN1_SEQUENCE, astr);
OPENSSL_free(p);
return 0;
}
static int g_verbose = 0;
#ifdef ENABLE_CURL
static int blob_has_nl = 0;
static size_t curl_write( void *ptr, size_t sz, size_t nmemb, void *stream)
{
if (sz*nmemb > 0 && !blob_has_nl) {
if (memchr(ptr, '\n', sz*nmemb))
blob_has_nl = 1;
}
return BIO_write((BIO*)stream, ptr, sz*nmemb);
}
static void print_timestamp_error(const char *url, long http_code)
{
if (http_code != -1) {
fprintf(stderr, "Failed to convert timestamp reply from %s; "
"HTTP status %ld\n", url, http_code);
} else {
fprintf(stderr, "Failed to convert timestamp reply from %s; "
"no HTTP status available", url);
}
ERR_print_errors_fp(stderr);
}
/*
A timestamp request looks like this:
POST <someurl> HTTP/1.1
Content-Type: application/octet-stream
Content-Length: ...
Accept: application/octet-stream
User-Agent: Transport
Host: ...
Cache-Control: no-cache
<base64encoded blob>
.. and the blob has the following ASN1 structure:
0:d=0 hl=4 l= 291 cons: SEQUENCE
4:d=1 hl=2 l= 10 prim: OBJECT :1.3.6.1.4.1.311.3.2.1
16:d=1 hl=4 l= 275 cons: SEQUENCE
20:d=2 hl=2 l= 9 prim: OBJECT :pkcs7-data
31:d=2 hl=4 l= 260 cons: cont [ 0 ]
35:d=3 hl=4 l= 256 prim: OCTET STRING
<signature>
.. and it returns a base64 encoded PKCS#7 structure.
*/
static int add_timestamp(PKCS7 *sig, char *url, char *proxy, int rfc3161, const EVP_MD *md, int verbose, int noverifypeer)
{
CURL *curl;
struct curl_slist *slist = NULL;
CURLcode c;
BIO *bout, *bin, *b64;
u_char *p = NULL;
int len = 0;
PKCS7_SIGNER_INFO *si =
sk_PKCS7_SIGNER_INFO_value
(sig->d.sign->signer_info, 0);
if (!url) return -1;
curl = curl_easy_init();
if (proxy) {
curl_easy_setopt(curl, CURLOPT_PROXY, proxy);
if (!strncmp("http:", proxy, 5))
curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
if (!strncmp("socks:", proxy, 6))
curl_easy_setopt(curl, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
}
curl_easy_setopt(curl, CURLOPT_URL, url);
/* curl_easy_setopt(curl, CURLOPT_VERBOSE, 42); */
if (noverifypeer)
curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, FALSE);
if (rfc3161) {
slist = curl_slist_append(slist, "Content-Type: application/timestamp-query");
slist = curl_slist_append(slist, "Accept: application/timestamp-reply");
} else {
slist = curl_slist_append(slist, "Content-Type: application/octet-stream");
slist = curl_slist_append(slist, "Accept: application/octet-stream");
}
slist = curl_slist_append(slist, "User-Agent: Transport");
slist = curl_slist_append(slist, "Cache-Control: no-cache");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, slist);
if (rfc3161) {
unsigned char mdbuf[EVP_MAX_MD_SIZE];
EVP_MD_CTX *mdctx;
mdctx = EVP_MD_CTX_new();
EVP_DigestInit(mdctx, md);
EVP_DigestUpdate(mdctx, si->enc_digest->data, si->enc_digest->length);
EVP_DigestFinal(mdctx, mdbuf, NULL);
EVP_MD_CTX_free(mdctx);
TimeStampReq *req = TimeStampReq_new();
ASN1_INTEGER_set(req->version, 1);
req->messageImprint->digestAlgorithm->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
req->messageImprint->digestAlgorithm->parameters = ASN1_TYPE_new();
req->messageImprint->digestAlgorithm->parameters->type = V_ASN1_NULL;
ASN1_OCTET_STRING_set(req->messageImprint->digest, mdbuf, EVP_MD_size(md));
req->certReq = (void*)0x1;
len = i2d_TimeStampReq(req, NULL);
p = OPENSSL_malloc(len);
len = i2d_TimeStampReq(req, &p);
p -= len;
TimeStampReq_free(req);
} else {
TimeStampRequest *req = TimeStampRequest_new();
req->type = OBJ_txt2obj(SPC_TIME_STAMP_REQUEST_OBJID, 1);
req->blob->type = OBJ_nid2obj(NID_pkcs7_data);
req->blob->signature = si->enc_digest;
len = i2d_TimeStampRequest(req, NULL);
p = OPENSSL_malloc(len);
len = i2d_TimeStampRequest(req, &p);
p -= len;
req->blob->signature = NULL;
TimeStampRequest_free(req);
}
bout = BIO_new(BIO_s_mem());
if (!rfc3161) {
b64 = BIO_new(BIO_f_base64());
bout = BIO_push(b64, bout);
}
BIO_write(bout, p, len);
(void)BIO_flush(bout);
OPENSSL_free(p);
p = NULL;
len = BIO_get_mem_data(bout, &p);
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, len);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, (char*)p);
bin = BIO_new(BIO_s_mem());
BIO_set_mem_eof_return(bin, 0);
curl_easy_setopt(curl, CURLOPT_POST, 1);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, bin);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write);
c = curl_easy_perform(curl);
curl_slist_free_all(slist);
BIO_free_all(bout);
if (c) {
BIO_free_all(bin);
if (verbose)
fprintf(stderr, "CURL failure: %s\n", curl_easy_strerror(c));
} else {
(void)BIO_flush(bin);
long http_code = -1;
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);
/*
* At this point we could also look at the response body (and perhaps
* log it if we fail to decode the response):
*
* char *resp_body = NULL;
* long resp_body_len = BIO_get_mem_data(bin, &resp_body);
*/
if (rfc3161) {
TimeStampResp *reply;
(void)BIO_flush(bin);
reply = ASN1_item_d2i_bio(ASN1_ITEM_rptr(TimeStampResp), bin, NULL);
BIO_free_all(bin);
if (!reply) {
if (verbose)
print_timestamp_error(url, http_code);
return -1;
}
if (ASN1_INTEGER_get(reply->status->status) != 0) {
if (verbose)
fprintf(stderr, "Timestamping failed: %ld\n", ASN1_INTEGER_get(reply->status->status));
TimeStampResp_free(reply);
return -1;
}
if (((len = i2d_PKCS7(reply->token, NULL)) <= 0) ||
(p = OPENSSL_malloc(len)) == NULL) {
if (verbose) {
fprintf(stderr, "Failed to convert pkcs7: %d\n", len);
ERR_print_errors_fp(stderr);
}
TimeStampResp_free(reply);
return -1;
}
len = i2d_PKCS7(reply->token, &p);
p -= len;
TimeStampResp_free(reply);
STACK_OF(X509_ATTRIBUTE) *attrs = sk_X509_ATTRIBUTE_new_null();
attrs = X509at_add1_attr_by_txt
(&attrs, SPC_RFC3161_OBJID, V_ASN1_SET, p, len);
OPENSSL_free(p);
PKCS7_set_attributes(si, attrs);
sk_X509_ATTRIBUTE_pop_free(attrs, X509_ATTRIBUTE_free);
} else {
int i;
PKCS7 *p7;
PKCS7_SIGNER_INFO *info;
ASN1_STRING *astr;
BIO* b64_bin;
b64 = BIO_new(BIO_f_base64());
if (!blob_has_nl)
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
b64_bin = BIO_push(b64, bin);
p7 = d2i_PKCS7_bio(b64_bin, NULL);
if (p7 == NULL) {
BIO_free_all(b64_bin);
if (verbose)
print_timestamp_error(url, http_code);
return -1;
}
BIO_free_all(b64_bin);
for(i = sk_X509_num(p7->d.sign->cert)-1; i>=0; i--)
PKCS7_add_certificate(sig, sk_X509_value(p7->d.sign->cert, i));
info = sk_PKCS7_SIGNER_INFO_value(p7->d.sign->signer_info, 0);
if (((len = i2d_PKCS7_SIGNER_INFO(info, NULL)) <= 0) ||
(p = OPENSSL_malloc(len)) == NULL) {
if (verbose) {
fprintf(stderr, "Failed to convert signer info: %d\n", len);
ERR_print_errors_fp(stderr);
}
PKCS7_free(p7);
return -1;
}
len = i2d_PKCS7_SIGNER_INFO(info, &p);
p -= len;
astr = ASN1_STRING_new();
ASN1_STRING_set(astr, p, len);
OPENSSL_free(p);
PKCS7_add_attribute
(si, NID_pkcs9_countersignature,
V_ASN1_SEQUENCE, astr);
PKCS7_free(p7);
}
}
curl_easy_cleanup(curl);
curl_global_cleanup();
return (int)c;
}
static int add_timestamp_authenticode(PKCS7 *sig, char **url, int nurls, char *proxy, int noverifypeer)
{
int i;
for (i=0; i<nurls; i++) {
int res = add_timestamp(sig, url[i], proxy, 0, NULL, g_verbose || nurls == 1, noverifypeer);
if (!res) return 0;
}
return -1;
}
static int add_timestamp_rfc3161(PKCS7 *sig, char **url, int nurls, char *proxy, const EVP_MD *md, int noverifypeer)
{
int i;
for (i=0; i<nurls; i++) {
int res = add_timestamp(sig, url[i], proxy, 1, md, g_verbose || nurls == 1, noverifypeer);
if (!res) return 0;
}
return -1;
}
#endif /* ENABLE_CURL */
#ifdef WITH_GSF
static int gsf_initialized = 0;
#endif
static void cleanup_lib_state(void)
{
#ifdef WITH_GSF
if (gsf_initialized)
gsf_shutdown();
#endif
OBJ_cleanup();
#ifndef OPENSSL_NO_ENGINE
ENGINE_cleanup();
#endif
EVP_cleanup();
CONF_modules_free();
CRYPTO_cleanup_all_ex_data();
ERR_free_strings();
}
static void usage(const char *argv0)
{
fprintf(stderr,
"Usage: %s\n\n\t[ --version | -v ]\n\n"
"\t[ sign ]\n"
"\t\t( -certs <certfile> -key <keyfile> | -pkcs12 <pkcs12file> |\n"
"\t\t -pkcs11engine <engine> -pkcs11module <module> -certs <certfile> -key <pkcs11 key id>)\n"
"\t\t[ -pass <password> ] "
#ifdef PROVIDE_ASKPASS
"[ -askpass ]"
#endif
"[ -readpass <file> ]\n"
"\t\t[ -ac <crosscertfile> ]\n"
"\t\t[ -h {md5,sha1,sha2(56),sha384,sha512} ]\n"
"\t\t[ -n <desc> ] [ -i <url> ] [ -jp <level> ] [ -comm ]\n"
"\t\t[ -ph ]\n"
#ifdef ENABLE_CURL
"\t\t[ -t <timestampurl> [ -t ... ] [ -p <proxy> ] [ -noverifypeer ] ]\n"
"\t\t[ -ts <timestampurl> [ -ts ... ] [ -p <proxy> ] [ -noverifypeer ] ]\n"
#endif
"\t\t[ -addUnauthenticatedBlob ]\n\n"
"\t\t[ -nest ]\n\n"
"\t\t[ -verbose ]\n\n"
"\t\tMSI specific:\n"
"\t\t[ -add-msi-dse ]\n\n"
"\t\t[ -in ] <infile> [-out ] <outfile>\n\n"
"\textract-signature [ -pem ] [ -in ] <infile> [ -out ] <outfile>\n\n"
"\tremove-signature [ -in ] <infile> [ -out ] <outfile>\n\n"
"\tattach-signature [ -sigin ] <sigfile> [ -in ] <infile> [ -out ] <outfile>\n\n"
"\tverify [ -in ] <infile>\n"
"\t\t[ -require-leaf-hash {md5,sha1,sha2(56),sha384,sha512}:XXXXXXXXXXXX... ]\n\n"
"\tadd [-addUnauthenticatedBlob] [ -in ] <infile> [ -out ] <outfile>\n"
#ifdef ENABLE_CURL
"\t\t[ -t <timestampurl> [ -t ... ] [ -p <proxy> ] [ -noverifypeer ] ]\n"
"\t\t[ -ts <timestampurl> [ -ts ... ] [ -p <proxy> ] [ -noverifypeer ] ]\n"
#endif
"\n"
"",
argv0);
cleanup_lib_state();
exit(-1);
}
#define DO_EXIT_0(x) { fputs(x, stderr); goto err_cleanup; }
#define DO_EXIT_1(x, y) { fprintf(stderr, x, y); goto err_cleanup; }
#define DO_EXIT_2(x, y, z) { fprintf(stderr, x, y, z); goto err_cleanup; }
#define GET_UINT16_LE(p) (((u_char*)(p))[0] | (((u_char*)(p))[1]<<8))
#define GET_UINT32_LE(p) (((u_char*)(p))[0] | (((u_char*)(p))[1]<<8) | \
(((u_char*)(p))[2]<<16) | (((u_char*)(p))[3]<<24))
#define PUT_UINT16_LE(i,p) \
((u_char*)(p))[0] = (i) & 0xff; \
((u_char*)(p))[1] = ((i)>>8) & 0xff
#define PUT_UINT32_LE(i,p) \
((u_char*)(p))[0] = (i) & 0xff; \
((u_char*)(p))[1] = ((i)>>8) & 0xff; \
((u_char*)(p))[2] = ((i)>>16) & 0xff; \
((u_char*)(p))[3] = ((i)>>24) & 0xff
typedef enum {
FILE_TYPE_CAB,
FILE_TYPE_PE,
FILE_TYPE_MSI,
} file_type_t;
typedef enum {
CMD_SIGN,
CMD_EXTRACT,
CMD_REMOVE,
CMD_VERIFY,
CMD_ADD,
CMD_ATTACH,
} cmd_type_t;
static SpcLink *get_obsolete_link(void)
{
static const unsigned char obsolete[] = {
0x00, 0x3c, 0x00, 0x3c, 0x00, 0x3c, 0x00, 0x4f, 0x00, 0x62,
0x00, 0x73, 0x00, 0x6f, 0x00, 0x6c, 0x00, 0x65, 0x00, 0x74,
0x00, 0x65, 0x00, 0x3e, 0x00, 0x3e, 0x00, 0x3e
};
SpcLink *link = SpcLink_new();
link->type = 2;
link->value.file = SpcString_new();
link->value.file->type = 0;
link->value.file->value.unicode = ASN1_BMPSTRING_new();
ASN1_STRING_set(link->value.file->value.unicode, obsolete, sizeof(obsolete));
return link;
}
static const unsigned char classid_page_hash[] = {
0xA6, 0xB5, 0x86, 0xD5, 0xB4, 0xA1, 0x24, 0x66,
0xAE, 0x05, 0xA2, 0x17, 0xDA, 0x8E, 0x60, 0xD6
};
static unsigned char *calc_page_hash(char *indata, unsigned int peheader, int pe32plus,
unsigned int sigpos, int phtype, unsigned int *phlen);
DEFINE_STACK_OF(ASN1_OCTET_STRING)
DEFINE_STACK_OF(SpcAttributeTypeAndOptionalValue)
static SpcLink *get_page_hash_link(int phtype, char *indata, unsigned int peheader, int pe32plus, unsigned int sigpos)
{
unsigned int phlen;
unsigned char *ph = calc_page_hash(indata, peheader, pe32plus, sigpos, phtype, &phlen);
if (!ph) {
fprintf(stderr, "Failed to calculate page hash\n");
exit(-1);
}
ASN1_OCTET_STRING *ostr = ASN1_OCTET_STRING_new();
ASN1_OCTET_STRING_set(ostr, ph, phlen);
free(ph);
STACK_OF(ASN1_OCTET_STRING) *oset = sk_ASN1_OCTET_STRING_new_null();
sk_ASN1_OCTET_STRING_push(oset, ostr);
unsigned char *p, *tmp;
unsigned int l;
l = i2d_ASN1_SET_ANY((ASN1_SEQUENCE_ANY *)oset, NULL);
tmp = p = OPENSSL_malloc(l);
i2d_ASN1_SET_ANY((ASN1_SEQUENCE_ANY *)oset, &tmp);
ASN1_OCTET_STRING_free(ostr);
sk_ASN1_OCTET_STRING_free(oset);
SpcAttributeTypeAndOptionalValue *aval = SpcAttributeTypeAndOptionalValue_new();
aval->type = OBJ_txt2obj((phtype == NID_sha1) ? SPC_PE_IMAGE_PAGE_HASHES_V1 : SPC_PE_IMAGE_PAGE_HASHES_V2, 1);
aval->value = ASN1_TYPE_new();
aval->value->type = V_ASN1_SET;
aval->value->value.set = ASN1_STRING_new();
ASN1_STRING_set(aval->value->value.set, p, l);
OPENSSL_free(p);
STACK_OF(SpcAttributeTypeAndOptionalValue) *aset = sk_SpcAttributeTypeAndOptionalValue_new_null();
sk_SpcAttributeTypeAndOptionalValue_push(aset, aval);
l = i2d_ASN1_SET_ANY((ASN1_SEQUENCE_ANY *)aset, NULL);
tmp = p = OPENSSL_malloc(l);
l = i2d_ASN1_SET_ANY((ASN1_SEQUENCE_ANY *)aset, &tmp);
sk_SpcAttributeTypeAndOptionalValue_free(aset);
SpcAttributeTypeAndOptionalValue_free(aval);
SpcSerializedObject *so = SpcSerializedObject_new();
ASN1_OCTET_STRING_set(so->classId, classid_page_hash, sizeof(classid_page_hash));
ASN1_OCTET_STRING_set(so->serializedData, p, l);
OPENSSL_free(p);
SpcLink *link = SpcLink_new();
link->type = 1;
link->value.moniker = so;
return link;
}
static void get_indirect_data_blob(u_char **blob, int *len, const EVP_MD *md, file_type_t type,
int pagehash, char *indata, unsigned int peheader, int pe32plus,
unsigned int sigpos)
{
static const unsigned char msistr[] = {
0xf1, 0x10, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46
};
u_char *p;
int hashlen, l;
void *hash;
ASN1_OBJECT *dtype;
SpcIndirectDataContent *idc = SpcIndirectDataContent_new();
idc->data->value = ASN1_TYPE_new();
idc->data->value->type = V_ASN1_SEQUENCE;
idc->data->value->value.sequence = ASN1_STRING_new();
if (type == FILE_TYPE_CAB) {
SpcLink *link = get_obsolete_link();
l = i2d_SpcLink(link, NULL);
p = OPENSSL_malloc(l);
i2d_SpcLink(link, &p);
p -= l;
dtype = OBJ_txt2obj(SPC_CAB_DATA_OBJID, 1);