cryptfsd.c

LFS.This is a kind of file system.

/* $Id: cryptfsd.C,v 1.2 2001/10/12 21:30:47 dm Exp $ */

/*
 *
 * Copyright (C) 2001 David Mazieres ([e-mail])
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 */

#include "cryptfs.h"
#include "mount_prot.h"
#include "rxx.h"
#include "nfsserv.h"
#include "nfsmounter.h"
#include "getfh3.h"

bool opt_nodaemon = getenv ("SFS_RUNINPLACE");
str mntpath ("/cfs");
ptr<axprt_unix> nmx;
ptr<aclnt> nmc;

static void
usage ()
{
  warnx << "usage: " << progname << " [-d] [/mountpoint]\n";
  exit (1);
}

int
main (int argc, char **argv)
{
  setprogname (argv[0]);
  sfsconst_init ();

  int ch;
  while ((ch = getopt (argc, argv, "d")) != -1)
    switch (ch) {
    case 'd':
      opt_nodaemon = true;
      break;
    default:
      usage ();
      break;
    }

  if (optind == argc - 1) {
    mntpath = argv[optind];
    if (mntpath[0] != '/')
      usage ();
  }
  else if (argc != optind)
    usage ();

  if (access (mntpath, 0) < 0 && errno == ENOENT && mkdir (mntpath, 0555) < 0)
    fatal ("mkdir (%s): %m\n", mntpath.cstr ());

  random_init_file (sfsdir << "/random_seed");
  str nmpath = fix_exec_path ("nfsmounter");
  if (!nmpath)
    fatal ("cannot find nfsmounter daemon\n");

  if (!opt_nodaemon)
    daemonize ();
  warn ("version %s, pid %d\n", VERSION, getpid ());

  nmx = axprt_unix_spawn (nmpath, 0, "nfsmounter", mntpath.cstr (), NULL);
  if (!nmx)
    fatal ("%s: %m\n", nmpath.cstr ());
  nmc = aclnt::alloc (nmx, nfsmounter_prog_1);
  nmc->seteofcb (wrap (exit, 1));

  rootdir->link (afsreg::alloc (VERSION "\n"), ".version");
  rootdir->link (afsreg::alloc (strbuf ("%d\n", getpid ())), ".pid");

  adm_init ();
  amain ();
}