// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
 * Ceph - scalable distributed file system
 *
 * Copyright (C) 2010-2011 Dreamhost
 *
 * This is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software
 * Foundation.  See file COPYING.
 *
 */

#include "ceph_crypto.h"
#include "auth/Crypto.h"

#include <pthread.h>

static bool crypto_init = false;

void ceph::crypto::assert_init() {
  assert(crypto_init == true);
}

#ifdef USE_CRYPTOPP
void ceph::crypto::init() {
  crypto_init = true;
  crypto_init_handlers();
}

void ceph::crypto::shutdown() {
  crypto_init = false;
  crypto_shutdown_handlers();
}

// nothing
ceph::crypto::HMACSHA1::~HMACSHA1()
{
}

#elif USE_NSS

void ceph::crypto::init() {
  if (crypto_init)
    return;
  crypto_init = true;
  SECStatus s;
  s = NSS_NoDB_Init(NULL);
  assert(s == SECSuccess);
  crypto_init_handlers();
}

void ceph::crypto::shutdown() {
  if (!crypto_init)
    return;
  crypto_init = false;
  SECStatus s;
  s = NSS_Shutdown();
  assert(s == SECSuccess);
  crypto_shutdown_handlers();
}

ceph::crypto::HMACSHA1::~HMACSHA1()
{
  PK11_DestroyContext(ctx, PR_TRUE);
  PK11_FreeSymKey(symkey);
  PK11_FreeSlot(slot);
}

#else
# error "No supported crypto implementation found."
#endif