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// Copyright (C) 2010 David Sugar, Tycho Softworks.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU uCommon C++ 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#include "local.h"
#ifdef _MSWINDOWS_
NAMESPACE_LOCAL
HCRYPTPROV _handle = NULL;
END_NAMESPACE
#endif
secure::~secure()
{
}
bool secure::fips(const char *progname)
{
return false;
}
bool secure::init(const char *progname)
{
Thread::init();
if(progname)
Socket::init(progname);
else
Socket::init();
#ifdef _MSWINDOWS_
if(_handle != NULL)
return false;
if(CryptAcquireContext(&_handle, NULL, NULL, PROV_RSA_FULL, 0))
return false;
if(GetLastError() == NTE_BAD_KEYSET) {
if(CryptAcquireContext(&_handle, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET))
return false;
}
_handle = NULL;
#endif
return false;
}
String secure::path(path_t id)
{
switch(id) {
case SYSTEM_CERTIFICATES:
return str(SSL_CERTS);
case SYSTEM_KEYS:
return str(SSL_PRIVATE);
}
return str("");
}
#if defined(_MSWINDOWS_)
static void cexport(HCERTSTORE ca, FILE *fp)
{
PCCERT_CONTEXT cert = NULL;
const uint8_t *cp;
char buf[80];
while ((cert = CertEnumCertificatesInStore(ca, cert)) != NULL) {
fprintf(fp, "-----BEGIN CERTIFICATE-----\n");
size_t total = cert->cbCertEncoded;
size_t count;
cp = (const uint8_t *)cert->pbCertEncoded;
while(total) {
count = String::b64encode(buf, cp, total, 64);
if(count)
fprintf(fp, "%s\n", buf);
total -= count;
cp += count;
}
fprintf(fp, "-----END CERTIFICATE-----\n");
}
}
int secure::oscerts(const char *pathname)
{
bool caset;
string_t target = shell::path(shell::USER_CONFIG) + pathname;
FILE *fp = fopen(*target, "wt");
if(!fp)
return ENOSYS;
HCERTSTORE ca = CertOpenSystemStoreA(NULL, "ROOT");
if(ca) {
caset = true;
cexport(ca, fp);
CertCloseStore(ca, 0);
}
ca = CertOpenSystemStoreA(NULL, "CA");
if(ca) {
caset = true;
cexport(ca, fp);
CertCloseStore(ca, 0);
}
fclose(fp);
if(!caset) {
fsys::remove(*target);
return ENOSYS;
}
return 0;
}
#else
int secure::oscerts(const char *pathname)
{
string_t source = path(SYSTEM_CERTIFICATES) + "/ca-certificates.crt";
string_t target = shell::path(shell::USER_CONFIG) + pathname;
if(!*source || !*target)
return ENOSYS;
return fsys::copy(*source, *target);
}
#endif
secure::server_t secure::server(const char *ca)
{
return NULL;
}
secure::client_t secure::client(const char *ca)
{
return NULL;
}
void secure::cipher(secure *context, const char *ciphers)
{
}
void secure::uuid(char *str)
{
static unsigned char buf[16];
static Timer::tick_t prior = 0l;
static unsigned short seq;
Timer::tick_t current = Timer::ticks();
Mutex::protect(&buf);
// get our (random) node identifier...
if(!prior)
Random::fill(buf + 10, 6);
if(current == prior)
++seq;
else
Random::fill((unsigned char *)&seq, sizeof(seq));
buf[8] = (unsigned char)((seq >> 8) & 0xff);
buf[9] = (unsigned char)(seq & 0xff);
buf[3] = (unsigned char)(current & 0xff);
buf[2] = (unsigned char)((current >> 8) & 0xff);
buf[1] = (unsigned char)((current >> 16) & 0xff);
buf[0] = (unsigned char)((current >> 24) & 0xff);
buf[5] = (unsigned char)((current >> 32) & 0xff);
buf[4] = (unsigned char)((current >> 40) & 0xff);
buf[7] = (unsigned char)((current >> 48) & 0xff);
buf[6] = (unsigned char)((current >> 56) & 0xff);
buf[6] &= 0x0f;
buf[6] |= 0x10;
buf[8] |= 0x80;
String::hexdump(buf, str, "4-2-2-2-6");
Mutex::release(&buf);
}
String secure::uuid(void)
{
char buf[38];
uuid(buf);
return String(buf);
}
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