static int cert_check(CLI *c, X509_STORE_CTX *callback_ctx, int preverify_ok) {
X509_OBJECT obj;
ASN1_BIT_STRING *local_key, *peer_key;
if(c->opt->verify_level==SSL_VERIFY_NONE) {
s_log(LOG_INFO, "CERT: Verification not enabled");
return 1; /* accept connection */
}
if(!preverify_ok) {
/* remote site specified a certificate, but it's not correct */
s_log(LOG_WARNING, "CERT: Verification error: %s",
X509_verify_cert_error_string(callback_ctx->error));
return 0; /* reject connection */
}
if(c->opt->verify_use_only_my && callback_ctx->error_depth==0) {
if(X509_STORE_get_by_subject(callback_ctx, X509_LU_X509,
X509_get_subject_name(callback_ctx->current_cert), &obj)!=1) {
s_log(LOG_WARNING, "CERT: Certificate not found in local repository");
return 0; /* reject connection */
}
peer_key=X509_get0_pubkey_bitstr(callback_ctx->current_cert);
local_key=X509_get0_pubkey_bitstr(obj.data.x509);
if(!peer_key || !local_key || peer_key->length!=local_key->length ||
memcmp(peer_key->data, local_key->data, local_key->length)) {
s_log(LOG_WARNING, "CERT: Public keys do not match");
return 0; /* reject connection */
}
}
return 1; /* accept connection */
}
char *tls_pkey_fprint(X509 *peercert, const char *mdalg)
{
if (var_tls_bc_pkey_fprint) {
const char *myname = "tls_pkey_fprint";
ASN1_BIT_STRING *key;
char *result;
key = X509_get0_pubkey_bitstr(peercert);
if (key == 0)
msg_fatal("%s: error extracting legacy public-key fingerprint: %m",
myname);
result = tls_data_fprint((char *) key->data, key->length, mdalg);
return (result);
} else {
int len;
char *buf;
char *buf2;
char *result;
len = i2d_X509_PUBKEY(X509_get_X509_PUBKEY(peercert), NULL);
buf2 = buf = mymalloc(len);
i2d_X509_PUBKEY(X509_get_X509_PUBKEY(peercert), (unsigned char **) &buf2);
if (buf2 - buf != len)
msg_panic("i2d_X509_PUBKEY invalid result length");
result = tls_data_fprint(buf, len, mdalg);
myfree(buf);
return (result);
}
}
NOEXPORT int compare_pubkeys(X509 *c1, X509 *c2) {
#if OPENSSL_VERSION_NUMBER>=0x0090700fL
ASN1_BIT_STRING *k1=X509_get0_pubkey_bitstr(c1);
ASN1_BIT_STRING *k2=X509_get0_pubkey_bitstr(c2);
if(!k1 || !k2 || k1->length!=k2->length || k1->length<0 ||
safe_memcmp(k1->data, k2->data, (size_t)k1->length)) {
s_log(LOG_DEBUG, "CERT: Public keys do not match");
return 0; /* reject */
}
#else
(void)c1; /* skip warning about unused parameter */
(void)c2; /* skip warning about unused parameter */
#endif
s_log(LOG_INFO, "CERT: Locally installed certificate matched");
return 1; /* accept */
}
OCSP_CERTID *OCSP_cert_to_id (const EVP_MD * dgst, X509 * subject, X509 * issuer)
{
X509_NAME *iname;
ASN1_INTEGER *serial;
ASN1_BIT_STRING *ikey;
#ifndef OPENSSL_NO_SHA1
if (!dgst)
dgst = EVP_sha1 ();
#endif
if (subject)
{
iname = X509_get_issuer_name (subject);
serial = X509_get_serialNumber (subject);
}
else
{
iname = X509_get_subject_name (issuer);
serial = NULL;
}
ikey = X509_get0_pubkey_bitstr (issuer);
return OCSP_cert_id_new (dgst, iname, ikey, serial);
}
int X509_pubkey_digest(const X509 *data, const EVP_MD *type, unsigned char *md,
unsigned int *len)
{
ASN1_BIT_STRING *key;
key = X509_get0_pubkey_bitstr(data);
if(!key) return 0;
return EVP_Digest(key->data, key->length, md, len, type, NULL);
}
static int cert_check(CLI *c, X509_STORE_CTX *callback_ctx, int preverify_ok) {
X509_OBJECT obj;
#if OPENSSL_VERSION_NUMBER>=0x0090700fL
ASN1_BIT_STRING *local_key, *peer_key;
#endif
X509 *cert;
int depth;
if(c->opt->verify_level<1) {
s_log(LOG_INFO, "CERT: Verification not enabled");
return 1; /* accept connection */
}
cert=X509_STORE_CTX_get_current_cert(callback_ctx);
depth=X509_STORE_CTX_get_error_depth(callback_ctx);
if(!preverify_ok) {
/* remote site specified a certificate, but it's not correct */
if(c->opt->verify_level>=4 && depth>0) {
s_log(LOG_INFO, "CERT: Invalid CA certificate ignored");
return 1; /* accept connection */
} else {
s_log(LOG_WARNING, "CERT: Verification error: %s",
X509_verify_cert_error_string(
X509_STORE_CTX_get_error(callback_ctx)));
return 0; /* reject connection */
}
}
if(c->opt->verify_level>=3 && depth==0) {
if(X509_STORE_get_by_subject(callback_ctx, X509_LU_X509,
X509_get_subject_name(cert), &obj)!=1) {
s_log(LOG_WARNING,
"CERT: Certificate not found in local repository");
return 0; /* reject connection */
}
#if OPENSSL_VERSION_NUMBER>=0x0090700fL
peer_key=X509_get0_pubkey_bitstr(cert);
local_key=X509_get0_pubkey_bitstr(obj.data.x509);
if(!peer_key || !local_key || peer_key->length!=local_key->length ||
memcmp(peer_key->data, local_key->data, local_key->length)) {
s_log(LOG_WARNING, "CERT: Public keys do not match");
return 0; /* reject connection */
}
#endif
s_log(LOG_INFO, "CERT: Locally installed certificate matched");
}
return 1; /* accept connection */
}
static int verify_local_public_key (X509 * crt)
{
int l;
void *p = NULL;
if (!cache_pkey) {
char *cn, *cn1;
char *fn;
BIO *cb;
X509 *cache_crt;
cn = get_cn_from_crt (crt);
if (!cn)
return (0);
cn1 = cn;
if (*cn1 == '*')
cn1++;
if (*cn1 == '.')
cn1++;
fn = (char *) malloc (strlen (PBC_KEY_DIR) + strlen (cn1) + 16);
sprintf (fn, "%s/%s.crt", PBC_KEY_DIR, cn1);
cb = BIO_new (BIO_s_file ());
if (BIO_read_filename (cb, fn) > 0) {
cache_crt = PEM_read_bio_X509 (cb, NULL, NULL, NULL);
if (cache_crt)
cache_pkey = X509_get0_pubkey_bitstr (cache_crt);
}
BIO_free (cb);
free (cn);
free (fn);
}
if (cache_pkey) {
ASN1_BIT_STRING *nkey;
nkey = X509_get0_pubkey_bitstr (crt);
if (nkey && (nkey->length == cache_pkey->length) &&
(memcmp (nkey->data, cache_pkey->data, nkey->length) == 0))
return (1);
}
return (0);
}
int X509_ocspid_print(BIO *bp, X509 *x)
{
unsigned char *der = NULL;
unsigned char *dertmp;
int derlen;
int i;
unsigned char SHA1md[SHA_DIGEST_LENGTH];
ASN1_BIT_STRING *keybstr;
X509_NAME *subj;
/*
* display the hash of the subject as it would appear in OCSP requests
*/
if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
goto err;
subj = X509_get_subject_name(x);
derlen = i2d_X509_NAME(subj, NULL);
if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
goto err;
i2d_X509_NAME(subj, &dertmp);
if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
goto err;
for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
goto err;
}
OPENSSL_free(der);
der = NULL;
/*
* display the hash of the public key as it would appear in OCSP requests
*/
if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
goto err;
keybstr = X509_get0_pubkey_bitstr(x);
if (keybstr == NULL)
goto err;
if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
NULL))
goto err;
for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
goto err;
}
BIO_printf(bp, "\n");
return 1;
err:
OPENSSL_free(der);
return 0;
}
// Create a filename, based on the actual data for a certificate
char *GenerateFileName(unsigned int version_num, const byte *dercert_data, size_t dercert_len,
BOOL with_pub_key, const DEFCERT_keyid_item *item)
{
if(dercert_data == NULL)
return NULL;
char *ret = NULL;
// Work buffer, large enough to hold the largest hash in asciiform in _XXXX form
char *buffer = new char[((EVP_MAX_MD_SIZE+1)/2)*5+1];
unsigned char *name = NULL;
X509 *cert = NULL;
if(buffer == NULL)
return NULL;
do
{
// Get the certificate
const unsigned char *data = dercert_data;
X509 *cert = d2i_X509(NULL, &data, dercert_len);
if(cert == NULL)
break;
// buffer for name hash
unsigned char name_hash[EVP_MAX_MD_SIZE+1]; /* ARRAY OK 2009-06-11 yngve */
EVP_MD_CTX hash;
// extract name
int len = i2d_X509_NAME(X509_get_subject_name(cert), &name);
if(name == NULL)
break;
// digest it
EVP_DigestInit(&hash, EVP_sha256());
EVP_DigestUpdate(&hash, name, len);
if(with_pub_key)
{
// and if requested the public key
ASN1_BIT_STRING *key = X509_get0_pubkey_bitstr(cert);
if(key)
EVP_DigestUpdate(&hash, key->data, key->length);
}
// and a key id
if(item && item->keyid)
EVP_DigestUpdate(&hash, item->keyid, item->keyid_len);
// version number is first part of name
name_hash[0] = version_num;
unsigned int md_len = 0;
// then the digest result
EVP_DigestFinal(&hash, name_hash+1, &md_len);
// Hexify the result
char *id_string = buffer;
int id_len = md_len+1, i =0;
// first, version number
if(version_num)
{
sprintf(id_string, "%.2X", name_hash[i]);
id_string+=2;
}
// then each pair of bytes
for(i++ ;i<id_len; i+=2, id_string+=5)
sprintf(id_string, (i+2 < id_len ? "%.2X%.2X_" : "%.2X%.2X"), name_hash[i], name_hash[i+1]);
char *short_name = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
if(short_name)
{
printf("%s\n %s: %s\n %s\n", short_name, (with_pub_key ? "TRUE" : "FALSE"),
(item == NULL ? "No dep" : "dep"), buffer);
OPENSSL_free(short_name);
}
// Return in buffe
ret = buffer;
}while(0);
if(name)
OPENSSL_free(name);
name = NULL;
if(cert)
X509_free(cert);
cert = NULL;
// If no return free buffer
if(ret == NULL)
delete [] buffer;
buffer = NULL;
return ret;
}
const void * PKI_X509_CERT_get_data(const PKI_X509_CERT * x,
PKI_X509_DATA type) {
const void *ret = NULL;
LIBPKI_X509_CERT *tmp_x = NULL;
if (!x || !x->value) {
PKI_ERROR(PKI_ERR_PARAM_NULL, NULL);
return (NULL);
}
tmp_x = x->value;
switch (type)
{
case PKI_X509_DATA_VERSION:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->cert_info) ret = (tmp_x)->cert_info->version;
#else
ret = (tmp_x)->cert_info.version;
#endif
break;
case PKI_X509_DATA_SERIAL:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->cert_info) ret = tmp_x->cert_info->serialNumber;
#else
ret = &((tmp_x)->cert_info.serialNumber);
#endif
// ret = X509_get_serialNumber ( (X509 *) x->value );
break;
case PKI_X509_DATA_SUBJECT:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->cert_info) ret = tmp_x->cert_info->subject;
#else
ret = tmp_x->cert_info.subject;
#endif
// ret = X509_get_subject_name( (X509 *) x->value );
break;
case PKI_X509_DATA_ISSUER:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->cert_info) ret = tmp_x->cert_info->issuer;
#else
ret = tmp_x->cert_info.issuer;
#endif
// ret = X509_get_issuer_name( (X509 *) x->value );
break;
case PKI_X509_DATA_NOTBEFORE:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
ret = tmp_x->cert_info->validity->notBefore;
#else
ret = X509_get0_notBefore((X509 *)tmp_x);
#endif
break;
case PKI_X509_DATA_NOTAFTER:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
ret = tmp_x->cert_info->validity->notAfter;
#else
ret = X509_get0_notAfter((X509 *)tmp_x);
#endif
break;
case PKI_X509_DATA_KEYPAIR_VALUE:
case PKI_X509_DATA_PUBKEY:
ret = X509_get_pubkey((X509 *)tmp_x);
break;
case PKI_X509_DATA_PUBKEY_BITSTRING:
ret = X509_get0_pubkey_bitstr((X509 *)tmp_x);
break;
case PKI_X509_DATA_SIGNATURE:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
ret = (tmp_x)->signature;
#else
ret = &(tmp_x)->signature;
#endif
break;
// Signature Algorithm within the certInfo structure
case PKI_X509_DATA_ALGORITHM:
case PKI_X509_DATA_SIGNATURE_ALG1:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->cert_info && tmp_x->cert_info->signature)
ret = tmp_x->cert_info->signature;
#else
ret = X509_get0_tbs_sigalg((const X509 *)x->value);
#endif
break;
case PKI_X509_DATA_SIGNATURE_ALG2:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
if (tmp_x->sig_alg) ret = tmp_x->sig_alg;
#else
ret = &tmp_x->sig_alg;
#endif
break;
case PKI_X509_DATA_KEYSIZE:
case PKI_X509_DATA_CERT_TYPE:
PKI_ERROR(PKI_ERR_PARAM_TYPE, "Deprecated Cert Datatype");
break;
/*
case PKI_X509_DATA_KEYSIZE:
tmp_int = PKI_Malloc ( sizeof( int ));
*tmp_int = EVP_PKEY_size(X509_get_pubkey((X509 *)x->value));
ret = tmp_int;
break;
case PKI_X509_DATA_CERT_TYPE:
tmp_int = PKI_Malloc ( sizeof ( int ));
*tmp_int = PKI_X509_CERT_get_type( x );
break;
*/
case PKI_X509_DATA_EXTENSIONS:
#if OPENSSL_VERSION_NUMBER < 0x1010000fL
ret = tmp_x->cert_info->extensions;
#else
ret = tmp_x->cert_info.extensions;
#endif
break;
default:
/* Not Recognized/Supported DATATYPE */
return (NULL);
}
return (ret);
}
static int openssl_ocsp_request_new(lua_State*L)
{
OCSP_REQUEST *req = NULL;
if (lua_isstring(L, 1))
{
BIO* bio = load_bio_object(L, 1);
req = d2i_OCSP_REQUEST_bio(bio, NULL);
/*
if (!req)
{
BIO_reset(bio);
req = PEM_read_bio_OCSP_REQUEST(bio, NULL, NULL);
}
*/
BIO_free(bio);
}
else
{
X509 *issuer = CHECK_OBJECT(1, X509, "openssl.x509");
X509_NAME *iname = X509_get_subject_name(issuer);
ASN1_BIT_STRING *ikey = X509_get0_pubkey_bitstr(issuer);
OCSP_CERTID *id = NULL;
OCSP_ONEREQ *one;
char buf[1024];
int nonce = lua_gettop(L) > 2 ? auxiliar_checkboolean(L, 3) : 0;
req = OCSP_REQUEST_new();
if (lua_istable(L, 2))
{
int len = lua_rawlen(L, 2);
int i;
for (i = 1; i <= len; i++)
{
lua_rawgeti(L, 2, i);
if (auxiliar_isclass(L, "openssl.x509", -1))
{
X509 *cert = CHECK_OBJECT(2, X509, "openssl.x509");
id = OCSP_cert_to_id(NULL, cert, issuer);
one = OCSP_request_add0_id(req, id);
}
else
{
size_t len;
char *serial = (char *)luaL_checklstring(L, -1, &len);
ASN1_INTEGER *sno = ASN1_INTEGER_new();
BIO* bio = BIO_new(BIO_s_mem());
BIO_write(bio, serial, len);
if (a2i_ASN1_INTEGER(bio, sno, buf, 1024) == 1)
{
id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
one = OCSP_request_add0_id(req, id);
};
ASN1_INTEGER_free(sno);
BIO_free(bio);
}
lua_pop(L, 1);
}
}
else if (auxiliar_isclass(L, "openssl.x509", 2))
{
X509 *cert = CHECK_OBJECT(2, X509, "openssl.x509");
id = OCSP_cert_to_id(NULL, cert, issuer);
one = OCSP_request_add0_id(req, id);
}
else
{
ASN1_INTEGER *sno = ASN1_INTEGER_new();
BIO* bio = load_bio_object(L, 2);
if (a2i_ASN1_INTEGER(bio, sno, buf, 1024) == 1)
{
id = OCSP_cert_id_new(EVP_sha1(), iname, ikey, sno);
one = OCSP_request_add0_id(req, id);
};
ASN1_INTEGER_free(sno);
BIO_free(bio);
}
if (nonce)
OCSP_request_add1_nonce(req, NULL, -1);
}
if(req) {
PUSH_OBJECT(req, "openssl.ocsp_request");
}else
lua_pushnil(L);
return 1;
}
void * PKI_X509_CERT_get_data ( PKI_X509_CERT *x, PKI_X509_DATA type ) {
void *ret = NULL;
PKI_X509_CERT_VALUE *tmp_x = NULL;
PKI_MEM *mem = NULL;
int *tmp_int = NULL;
if( !x || !x->value ) return (NULL);
tmp_x = x->value;
switch (type)
{
case PKI_X509_DATA_VERSION:
ret = (tmp_x)->cert_info->version;
break;
case PKI_X509_DATA_SERIAL:
ret = X509_get_serialNumber ( (X509 *) x->value );
break;
case PKI_X509_DATA_SUBJECT:
ret = X509_get_subject_name( (X509 *) x->value );
break;
case PKI_X509_DATA_ISSUER:
ret = X509_get_issuer_name( (X509 *) x->value );
break;
case PKI_X509_DATA_NOTBEFORE:
ret = X509_get_notBefore( (X509 *) x->value );
break;
case PKI_X509_DATA_NOTAFTER:
ret = X509_get_notAfter( (X509 *) x->value );
break;
case PKI_X509_DATA_KEYPAIR_VALUE:
case PKI_X509_DATA_PUBKEY:
ret = X509_get_pubkey( (X509 *) x->value);
break;
case PKI_X509_DATA_PUBKEY_BITSTRING:
ret = X509_get0_pubkey_bitstr( (X509 *) x->value);
break;
case PKI_X509_DATA_SIGNATURE:
ret = (void *) (tmp_x)->signature;
break;
case PKI_X509_DATA_ALGORITHM:
case PKI_X509_DATA_SIGNATURE_ALG1:
if (tmp_x->cert_info && tmp_x->cert_info->signature)
ret = tmp_x->cert_info->signature;
break;
case PKI_X509_DATA_SIGNATURE_ALG2:
if (tmp_x->sig_alg) ret = tmp_x->sig_alg;
break;
case PKI_X509_DATA_KEYSIZE:
tmp_int = PKI_Malloc ( sizeof( int ));
*tmp_int = EVP_PKEY_size(
X509_get_pubkey ( (X509 *) x->value ));
ret = tmp_int;
break;
case PKI_X509_DATA_TBS_MEM_ASN1:
if((mem = PKI_MEM_new_null()) == NULL ) break;
mem->size = (size_t) ASN1_item_i2d ( (void *) tmp_x->cert_info,
&(mem->data), &X509_CINF_it );
ret = mem;
break;
case PKI_X509_DATA_CERT_TYPE:
tmp_int = PKI_Malloc ( sizeof ( int ));
*tmp_int = PKI_X509_CERT_get_type( x );
break;
case PKI_X509_DATA_EXTENSIONS:
default:
/* Not Recognized/Supported DATATYPE */
return (NULL);
}
return (ret);
}
