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/*
* Copyright 1995-2016 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 <stdlib.h>
#include <string.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/pem.h>
typedef enum OPTION_choice {
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
OPT_INFORM, OPT_IN, OPT_OUTFORM, OPT_OUT, OPT_KEYFORM, OPT_KEY,
OPT_ISSUER, OPT_LASTUPDATE, OPT_NEXTUPDATE, OPT_FINGERPRINT,
OPT_CRLNUMBER, OPT_BADSIG, OPT_GENDELTA, OPT_CAPATH, OPT_CAFILE,
OPT_NOCAPATH, OPT_NOCAFILE, OPT_VERIFY, OPT_TEXT, OPT_HASH, OPT_HASH_OLD,
OPT_NOOUT, OPT_NAMEOPT, OPT_MD
} OPTION_CHOICE;
OPTIONS crl_options[] = {
{"help", OPT_HELP, '-', "Display this summary"},
{"inform", OPT_INFORM, 'F', "Input format; default PEM"},
{"in", OPT_IN, '<', "Input file - default stdin"},
{"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},
{"out", OPT_OUT, '>', "output file - default stdout"},
{"keyform", OPT_KEYFORM, 'F', "Private key file format (PEM or ENGINE)"},
{"key", OPT_KEY, '<', "CRL signing Private key to use"},
{"issuer", OPT_ISSUER, '-', "Print issuer DN"},
{"lastupdate", OPT_LASTUPDATE, '-', "Set lastUpdate field"},
{"nextupdate", OPT_NEXTUPDATE, '-', "Set nextUpdate field"},
{"noout", OPT_NOOUT, '-', "No CRL output"},
{"fingerprint", OPT_FINGERPRINT, '-', "Print the crl fingerprint"},
{"crlnumber", OPT_CRLNUMBER, '-', "Print CRL number"},
{"badsig", OPT_BADSIG, '-', "Corrupt last byte of loaded CRL signature (for test)" },
{"gendelta", OPT_GENDELTA, '<'},
{"CApath", OPT_CAPATH, '/', "Verify CRL using certificates in dir"},
{"CAfile", OPT_CAFILE, '<', "Verify CRL using certificates in file name"},
{"no-CAfile", OPT_NOCAFILE, '-',
"Do not load the default certificates file"},
{"no-CApath", OPT_NOCAPATH, '-',
"Do not load certificates from the default certificates directory"},
{"verify", OPT_VERIFY, '-', "Verify CRL signature"},
{"text", OPT_TEXT, '-', "Print out a text format version"},
{"hash", OPT_HASH, '-', "Print hash value"},
{"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
{"", OPT_MD, '-', "Any supported digest"},
#ifndef OPENSSL_NO_MD5
{"hash_old", OPT_HASH_OLD, '-', "Print old-style (MD5) hash value"},
#endif
{NULL}
};
int crl_main(int argc, char **argv)
{
X509_CRL *x = NULL;
BIO *out = NULL;
X509_STORE *store = NULL;
X509_STORE_CTX *ctx = NULL;
X509_LOOKUP *lookup = NULL;
X509_OBJECT *xobj = NULL;
EVP_PKEY *pkey;
const EVP_MD *digest = EVP_sha1();
unsigned long nmflag = 0;
char nmflag_set = 0;
char *infile = NULL, *outfile = NULL, *crldiff = NULL, *keyfile = NULL;
char *CAfile = NULL, *CApath = NULL, *prog;
OPTION_CHOICE o;
int hash = 0, issuer = 0, lastupdate = 0, nextupdate = 0, noout = 0;
int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyformat = FORMAT_PEM;
int ret = 1, num = 0, badsig = 0, fingerprint = 0, crlnumber = 0;
int text = 0, do_ver = 0, noCAfile = 0, noCApath = 0;
int i;
#ifndef OPENSSL_NO_MD5
int hash_old = 0;
#endif
prog = opt_init(argc, argv, crl_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(crl_options);
ret = 0;
goto end;
case OPT_INFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
goto opthelp;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUTFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
goto opthelp;
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_KEYFORM:
if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &keyformat))
goto opthelp;
break;
case OPT_KEY:
keyfile = opt_arg();
break;
case OPT_GENDELTA:
crldiff = opt_arg();
break;
case OPT_CAPATH:
CApath = opt_arg();
do_ver = 1;
break;
case OPT_CAFILE:
CAfile = opt_arg();
do_ver = 1;
break;
case OPT_NOCAPATH:
noCApath = 1;
break;
case OPT_NOCAFILE:
noCAfile = 1;
break;
case OPT_HASH_OLD:
#ifndef OPENSSL_NO_MD5
hash_old = ++num;
#endif
break;
case OPT_VERIFY:
do_ver = 1;
break;
case OPT_TEXT:
text = 1;
break;
case OPT_HASH:
hash = ++num;
break;
case OPT_ISSUER:
issuer = ++num;
break;
case OPT_LASTUPDATE:
lastupdate = ++num;
break;
case OPT_NEXTUPDATE:
nextupdate = ++num;
break;
case OPT_NOOUT:
noout = ++num;
break;
case OPT_FINGERPRINT:
fingerprint = ++num;
break;
case OPT_CRLNUMBER:
crlnumber = ++num;
break;
case OPT_BADSIG:
badsig = 1;
break;
case OPT_NAMEOPT:
nmflag_set = 1;
if (!set_name_ex(&nmflag, opt_arg()))
goto opthelp;
break;
case OPT_MD:
if (!opt_md(opt_unknown(), &digest))
goto opthelp;
}
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;
if (!nmflag_set)
nmflag = XN_FLAG_ONELINE;
x = load_crl(infile, informat);
if (x == NULL)
goto end;
if (do_ver) {
if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
goto end;
lookup = X509_STORE_add_lookup(store, X509_LOOKUP_file());
if (lookup == NULL)
goto end;
ctx = X509_STORE_CTX_new();
if (ctx == NULL || !X509_STORE_CTX_init(ctx, store, NULL, NULL)) {
BIO_printf(bio_err, "Error initialising X509 store\n");
goto end;
}
xobj = X509_STORE_get_X509_by_subject(ctx, X509_LU_X509,
X509_CRL_get_issuer(x));
if (xobj == NULL) {
BIO_printf(bio_err, "Error getting CRL issuer certificate\n");
goto end;
}
pkey = X509_get_pubkey(X509_OBJECT_get0_X509(xobj));
X509_OBJECT_free(xobj);
if (!pkey) {
BIO_printf(bio_err, "Error getting CRL issuer public key\n");
goto end;
}
i = X509_CRL_verify(x, pkey);
EVP_PKEY_free(pkey);
if (i < 0)
goto end;
if (i == 0)
BIO_printf(bio_err, "verify failure\n");
else
BIO_printf(bio_err, "verify OK\n");
}
if (crldiff) {
X509_CRL *newcrl, *delta;
if (!keyfile) {
BIO_puts(bio_err, "Missing CRL signing key\n");
goto end;
}
newcrl = load_crl(crldiff, informat);
if (!newcrl)
goto end;
pkey = load_key(keyfile, keyformat, 0, NULL, NULL, "CRL signing key");
if (!pkey) {
X509_CRL_free(newcrl);
goto end;
}
delta = X509_CRL_diff(x, newcrl, pkey, digest, 0);
X509_CRL_free(newcrl);
EVP_PKEY_free(pkey);
if (delta) {
X509_CRL_free(x);
x = delta;
} else {
BIO_puts(bio_err, "Error creating delta CRL\n");
goto end;
}
}
if (num) {
for (i = 1; i <= num; i++) {
if (issuer == i) {
print_name(bio_out, "issuer=", X509_CRL_get_issuer(x),
nmflag);
}
if (crlnumber == i) {
ASN1_INTEGER *crlnum;
crlnum = X509_CRL_get_ext_d2i(x, NID_crl_number, NULL, NULL);
BIO_printf(bio_out, "crlNumber=");
if (crlnum) {
i2a_ASN1_INTEGER(bio_out, crlnum);
ASN1_INTEGER_free(crlnum);
} else
BIO_puts(bio_out, "<NONE>");
BIO_printf(bio_out, "\n");
}
if (hash == i) {
BIO_printf(bio_out, "%08lx\n",
X509_NAME_hash(X509_CRL_get_issuer(x)));
}
#ifndef OPENSSL_NO_MD5
if (hash_old == i) {
BIO_printf(bio_out, "%08lx\n",
X509_NAME_hash_old(X509_CRL_get_issuer(x)));
}
#endif
if (lastupdate == i) {
BIO_printf(bio_out, "lastUpdate=");
ASN1_TIME_print(bio_out, X509_CRL_get_lastUpdate(x));
BIO_printf(bio_out, "\n");
}
if (nextupdate == i) {
BIO_printf(bio_out, "nextUpdate=");
if (X509_CRL_get_nextUpdate(x))
ASN1_TIME_print(bio_out, X509_CRL_get_nextUpdate(x));
else
BIO_printf(bio_out, "NONE");
BIO_printf(bio_out, "\n");
}
if (fingerprint == i) {
int j;
unsigned int n;
unsigned char md[EVP_MAX_MD_SIZE];
if (!X509_CRL_digest(x, digest, md, &n)) {
BIO_printf(bio_err, "out of memory\n");
goto end;
}
BIO_printf(bio_out, "%s Fingerprint=",
OBJ_nid2sn(EVP_MD_type(digest)));
for (j = 0; j < (int)n; j++) {
BIO_printf(bio_out, "%02X%c", md[j], (j + 1 == (int)n)
? '\n' : ':');
}
}
}
}
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
if (text)
X509_CRL_print(out, x);
if (noout) {
ret = 0;
goto end;
}
if (badsig) {
ASN1_BIT_STRING *sig;
unsigned char *psig;
X509_CRL_get0_signature(&sig, NULL, x);
psig = ASN1_STRING_data(sig);
psig[ASN1_STRING_length(sig) - 1] ^= 0x1;
}
if (outformat == FORMAT_ASN1)
i = (int)i2d_X509_CRL_bio(out, x);
else
i = PEM_write_bio_X509_CRL(out, x);
if (!i) {
BIO_printf(bio_err, "unable to write CRL\n");
goto end;
}
ret = 0;
end:
if (ret != 0)
ERR_print_errors(bio_err);
BIO_free_all(out);
X509_CRL_free(x);
X509_STORE_CTX_free(ctx);
X509_STORE_free(store);
return (ret);
}
|
