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b04d69d381
git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@157 fd59a12c-fef9-0310-b244-a6a79926bd2f
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/*
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* Copyright (c) 2004 MontaVista Software, Inc.
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*
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* All rights reserved.
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*
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* Author: Steven Dake (sdake@mvista.com)
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*
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* This software licensed under BSD license, the text of which follows:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the MontaVista Software, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <netinet/in.h>
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int main (void) {
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int authkey_fd;
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int random_fd;
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unsigned char key[128];
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int res;
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printf ("OpenAIS Authentication key generator.\n");
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if (geteuid() != 0) {
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printf ("Error: Authorization key must be generated as root user.\n");
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exit (1);
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}
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mkdir ("/etc/ais", 0700);
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printf ("Gathering %d bits for key from /dev/random.\n", sizeof (key) * 8);
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random_fd = open ("/dev/random", O_RDONLY);
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if (random_fd == -1) {
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perror ("Is /dev/random present? Opening /dev/random");
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exit (1);
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}
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/*
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* Read random data
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*/
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res = read (random_fd, key, sizeof (key));
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if (res == -1) {
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perror ("Could not read /etc/ais/authkey");
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exit (1);
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}
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/*
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* Open key
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*/
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authkey_fd = open ("/etc/ais/authkey", O_CREAT|O_WRONLY);
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if (authkey_fd == -1) {
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perror ("Could not create /etc/ais/authkey");
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exit (1);
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}
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/*
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* Set security of authorization key to uid = 0 uid = 0 mode = 0400
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*/
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fchown (authkey_fd, 0, 0);
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fchmod (authkey_fd, 0400);
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printf ("Writing openais key to /etc/ais/authkey.\n");
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/*
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* Write key
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*/
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res = write (authkey_fd, key, sizeof (key));
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if (res == -1) {
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perror ("Could not write /etc/ais/authkey");
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exit (1);
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}
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return (0);
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}
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