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/* $OpenBSD: tokeninit.c,v 1.13 2017/05/03 09:51:39 mestre Exp $ */
/*-
* Copyright (c) 1995 Migration Associates Corp. All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Berkeley Software Design,
* Inc.
* 4. The name of Berkeley Software Design, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI $From: tokeninit.c,v 1.1 1996/08/26 20:27:28 prb Exp
*/
#include <sys/signal.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <err.h>
#include <stdio.h>
#include <syslog.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <string.h>
#include <readpassphrase.h>
#include "token.h"
#include "tokendb.h"
static char *prompt_for_secret(int, char*);
static int parse_secret(int, char *, unsigned char *);
int
main(int argc, char **argv)
{
unsigned int cmd = TOKEN_INITUSER;
int c;
int errors = 0;
int verbose = 0;
int hexformat = 0;
int modes = 0;
char seed[80];
unsigned char secret[9];
char *optstr;
char *p = NULL;
struct rlimit cds;
(void)signal(SIGQUIT, SIG_IGN);
(void)signal(SIGINT, SIG_IGN);
(void)setpriority(PRIO_PROCESS, 0, 0);
openlog(NULL, LOG_ODELAY, LOG_AUTH);
/*
* Make sure we never dump core as we might have a
* valid user shared-secret in memory.
*/
cds.rlim_cur = 0;
cds.rlim_max = 0;
if (setrlimit(RLIMIT_CORE, &cds) < 0)
syslog(LOG_ERR, "couldn't set core dump size to 0: %m");
if (pledge("stdio rpath wpath cpath fattr flock getpw tty", NULL) == -1)
err(1, "pledge");
if (token_init(argv[0]) < 0) {
syslog(LOG_ERR, "unknown token type");
errx(1, "unknown token type");
}
if (tt->options & TOKEN_HEXINIT)
optstr = "fhm:sv";
else
optstr = "fm:sv";
while ((c = getopt(argc, argv, optstr)) != -1)
switch (c) {
case 'f': /* force initialize existing user account */
cmd |= TOKEN_FORCEINIT;
break;
case 'h':
hexformat = 1;
break;
case 'm':
if ((c = token_mode(optarg)))
modes |= c;
else
errx(1, "unknown mode");
break;
case 's': /* generate seed during initialization */
cmd |= TOKEN_GENSECRET;
break;
case 'v': /* verbose */
verbose = 1;
break;
default:
fprintf(stderr,
"usage: %sinit [-f%ssv] [-m mode] user ...\n",
tt->name, (tt->options & TOKEN_HEXINIT) ? "h" : "");
exit(1);
}
if ((modes & ~TOKEN_RIM) == 0)
modes |= tt->defmode;
argc -= optind;
argv = &argv[optind];
while (argc--) {
if (verbose) {
printf("Adding %s to %s database\n", *argv, tt->proper);
fflush(stdout);
}
if (!(cmd & TOKEN_GENSECRET)) {
p = prompt_for_secret(hexformat, *argv);
if (!readpassphrase(p, seed, sizeof(seed), RPP_ECHO_ON) ||
seed[0] == '\0') {
fprintf(stderr,
"%sinit: No seed supplied for token.\n",
tt->name);
exit(1);
}
explicit_bzero(secret, sizeof(secret));
if (parse_secret(hexformat, seed, secret)) {
fprintf(stderr,
"%sinit: Invalid secret entered.\n",
tt->name);
exit(1);
}
}
switch (tokenuserinit(cmd, *argv, secret, modes)) {
case 0:
syslog(LOG_INFO, "User %s initialized in %s database",
*argv, tt->proper);
break;
case 1:
warnx("%s already exists in %s database!",
*argv, tt->proper);
syslog(LOG_INFO, "%s already exists in %s database",
*argv, tt->proper);
errors++;
break;
case -1:
warnx("Error initializing user %s in %s database.",
*argv, tt->proper);
syslog(LOG_INFO,
"Error initializing user %s in %s database: %m",
*argv, tt->proper);
errors++;
}
argv++;
}
exit(errors);
}
/*
* Parse the 8 octal numbers or a 16 digit hex string into a token secret
*/
static int
parse_secret(int hexformat, char *seed, unsigned char *secret)
{
int i;
unsigned int tmp[8];
if (hexformat) {
if ((i = sscanf(seed, "%02x %02x %02x %02x %02x %02x %02x %02x",
&tmp[0], &tmp[1], &tmp[2], &tmp[3],
&tmp[4], &tmp[5], &tmp[6], &tmp[7])) != 8)
return (-1);
} else {
if ((i = sscanf(seed, "%o %o %o %o %o %o %o %o",
&tmp[0], &tmp[1], &tmp[2], &tmp[3],
&tmp[4], &tmp[5], &tmp[6], &tmp[7])) != 8)
return (-1);
}
for (i=0; i < 8; i++)
secret[i] = tmp[i] & 0xff;
return (0);
}
/*
* Prompt user for seed for token
*/
static char *
prompt_for_secret(int hexformat, char* username)
{
static char prompt[1024];
if (hexformat)
snprintf(prompt, sizeof prompt,
"Enter a 16 digit hexadecimal number "
"as a seed for %s\'s token:\n", username);
else
snprintf(prompt, sizeof prompt,
"Enter a series of 8 3-digit octal numbers "
"as a seed for %s\'s token:\n", username);
return prompt;
}
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