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/*
* Copyright (C) 2014 Dragon Research Labs ("DRL")
* Portions copyright (C) 2008 American Registry for Internet Numbers ("ARIN")
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notices and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND DRL AND ARIN DISCLAIM ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DRL OR
* ARIN BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
* OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id$ */
/*
* Decoder test for RPKI manifests.
*
* NB: This does -not- check the CMS signatures, just the encoding.
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <getopt.h>
#include <openssl/bn.h>
#include <openssl/bio.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/safestack.h>
#include <openssl/conf.h>
#include <openssl/rand.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/cms.h>
#include <rpki/manifest.h>
/*
* Read manifest (CMS object) in DER format.
*
* NB: When invoked this way, CMS_verify() does -not- verify, it just decodes the ASN.1.
*
* OK, this does more than just reading the CMS. Refactor or rename, someday.
*/
static const Manifest *read_manifest(const char *filename,
const int print_cms,
const int print_manifest,
const int print_signerinfo)
{
CMS_ContentInfo *cms = NULL;
const ASN1_OBJECT *oid = NULL;
const Manifest *m = NULL;
char *mftnum = NULL;
BIGNUM *bn = NULL;
char buf[512];
BIO *b = NULL;
int i, j;
if ((b = BIO_new_file(filename, "r")) == NULL ||
(cms = d2i_CMS_bio(b, NULL)) == NULL)
goto done;
BIO_free(b);
b = NULL;
if (print_signerinfo) {
STACK_OF(CMS_SignerInfo) *signerInfos = CMS_get0_SignerInfos(cms);
STACK_OF(X509) *certs = CMS_get1_certs(cms);
STACK_OF(X509_CRL) *crls = CMS_get1_crls(cms);
printf("Certificates: %d\n", certs ? sk_X509_num(certs) : 0);
printf("CRLs: %d\n", crls ? sk_X509_CRL_num(crls) : 0);
for (i = 0; i < sk_CMS_SignerInfo_num(signerInfos); i++) {
CMS_SignerInfo *si = sk_CMS_SignerInfo_value(signerInfos, i);
ASN1_OCTET_STRING *hash = NULL;
printf("SignerId[%d]: ", i);
if (CMS_SignerInfo_get0_signer_id(si, &hash, NULL, NULL) && hash != NULL)
for (j = 0; j < hash->length; j++)
printf("%02x%s", hash->data[j], j == hash->length - 1 ? "" : ":");
else
printf("[Could not read SID]");
if (certs)
for (j = 0; j < sk_X509_num(certs); j++)
if (!CMS_SignerInfo_cert_cmp(si, sk_X509_value(certs, j)))
printf(" [Matches certificate %d]", j);
if ((j = CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1)) >= 0) {
X509_ATTRIBUTE *xa = CMS_signed_get_attr(si, j);
if (xa && !xa->single && sk_ASN1_TYPE_num(xa->value.set) == 1) {
ASN1_TYPE *so = sk_ASN1_TYPE_value(xa->value.set, 0);
switch (so->type) {
case V_ASN1_UTCTIME:
printf(" [signingTime(U) %s%s]",
so->value.utctime->data[0] < '5' ? "20" : "19",
so->value.utctime->data);
break;
case V_ASN1_GENERALIZEDTIME:
printf(" [signingTime(G) %s]",
so->value.generalizedtime->data);
break;
}
}
}
printf("\n");
}
sk_X509_pop_free(certs, X509_free);
sk_X509_CRL_pop_free(crls, X509_CRL_free);
}
if ((b = BIO_new(BIO_s_mem())) == NULL ||
CMS_verify(cms, NULL, NULL, NULL, b, CMS_NOCRL | CMS_NO_SIGNER_CERT_VERIFY | CMS_NO_ATTR_VERIFY | CMS_NO_CONTENT_VERIFY) <= 0 ||
(m = ASN1_item_d2i_bio(ASN1_ITEM_rptr(Manifest), b, NULL)) == NULL)
goto done;
BIO_free(b);
b = NULL;
if (print_manifest) {
if ((oid = CMS_get0_eContentType(cms)) == NULL)
goto done;
OBJ_obj2txt(buf, sizeof(buf), oid, 0);
printf("eContentType: %s\n", buf);
if (m->version)
printf("version: %ld\n", ASN1_INTEGER_get(m->version));
else
printf("version: 0 [Defaulted]\n");
bn = ASN1_INTEGER_to_BN(m->manifestNumber, NULL);
mftnum = BN_bn2dec(bn);
printf("manifestNumber: %s\n", mftnum);
printf("thisUpdate: %s\n", m->thisUpdate->data);
printf("nextUpdate: %s\n", m->nextUpdate->data);
OBJ_obj2txt(buf, sizeof(buf), m->fileHashAlg, 0);
printf("fileHashAlg: %s\n", buf);
for (i = 0; i < sk_FileAndHash_num(m->fileList); i++) {
FileAndHash *fah = sk_FileAndHash_value(m->fileList, i);
printf("fileList[%3d]: ", i);
for (j = 0; j < fah->hash->length; j++)
printf("%02x%s", fah->hash->data[j], j == fah->hash->length - 1 ? " " : ":");
printf(" %s\n", fah->file->data);
}
if (X509_cmp_current_time(m->nextUpdate) < 0)
printf("MANIFEST IS STALE\n");
}
if (print_cms) {
if (print_manifest)
printf("\n");
fflush(stdout);
if ((b = BIO_new(BIO_s_fd())) == NULL)
goto done;
BIO_set_fd(b, 1, BIO_NOCLOSE);
CMS_ContentInfo_print_ctx(b, cms, 0, NULL);
BIO_free(b);
b = NULL;
}
done:
if (ERR_peek_error())
ERR_print_errors_fp(stderr);
BIO_free(b);
BN_free(bn);
if (mftnum)
OPENSSL_free(mftnum);
CMS_ContentInfo_free(cms);
return m;
}
const static struct option longopts[] = {
{ "print-cms", no_argument, NULL, 'c' },
{ "help", no_argument, NULL, 'h' },
{ NULL }
};
static int usage (const char *jane, const int code)
{
FILE *out = code ? stderr : stdout;
int i;
fprintf(out, "usage: %s [options] manifest [manifest...]\n", jane);
fprintf(out, "options:\n");
for (i = 0; longopts[i].name != NULL; i++)
fprintf(out, " -%c --%s\n", longopts[i].val, longopts[i].name);
return code;
}
/*
* Main program.
*/
int main (int argc, char *argv[])
{
int result = 0, print_cms = 0, c;
const char *jane = argv[0];
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
while ((c = getopt_long(argc, argv, "ch", longopts, NULL)) != -1) {
switch (c) {
case 'c':
print_cms = 1;
break;
case 'h':
return usage(jane, 0);
default:
return usage(jane, 1);
}
}
argc -= optind;
argv += optind;
if (argc == 0)
return usage(jane, 1);
while (argc-- > 0)
result |= read_manifest(*argv++, print_cms, 1, 1) == NULL;
return result;
}
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