989d921f5d
I'm very pleased to announce the release of our new website and documentation using the new toolchain with Hugo and AsciiDoctor. To get more information about the new toolchain please read the FreeBSD Documentation Project Primer[1], Hugo docs[2] and AsciiDoctor docs[3]. Acknowledgment: Benedict Reuschling <bcr@> Glen Barber <gjb@> Hiroki Sato <hrs@> Li-Wen Hsu <lwhsu@> Sean Chittenden <seanc@> The FreeBSD Foundation [1] https://docs.FreeBSD.org/en/books/fdp-primer/ [2] https://gohugo.io/documentation/ [3] https://docs.asciidoctor.org/home/ Approved by: doceng, core
165 lines
4.4 KiB
C
165 lines
4.4 KiB
C
/*-
|
|
* Copyright (c) 2002 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by ThinkSec AS and
|
|
* Network Associates Laboratories, the Security Research Division of
|
|
* Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
|
|
* ("CBOSS"), as part of the DARPA CHATS research program.
|
|
*
|
|
* 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. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
|
|
*
|
|
* $P4: //depot/projects/openpam/modules/pam_unix/pam_unix.c#3 $
|
|
* $FreeBSD: head/en_US.ISO8859-1/articles/pam/pam_unix.c 38826 2012-05-17 19:12:14Z hrs $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <pwd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <security/pam_modules.h>
|
|
#include <security/pam_appl.h>
|
|
|
|
#ifndef _OPENPAM
|
|
static char password_prompt[] = "Password:";
|
|
#endif
|
|
|
|
#ifndef PAM_EXTERN
|
|
#define PAM_EXTERN
|
|
#endif
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_authenticate(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
#ifndef _OPENPAM
|
|
struct pam_conv *conv;
|
|
struct pam_message msg;
|
|
const struct pam_message *msgp;
|
|
struct pam_response *resp;
|
|
#endif
|
|
struct passwd *pwd;
|
|
const char *user;
|
|
char *crypt_password, *password;
|
|
int pam_err, retry;
|
|
|
|
/* identify user */
|
|
if ((pam_err = pam_get_user(pamh, &user, NULL)) != PAM_SUCCESS)
|
|
return (pam_err);
|
|
if ((pwd = getpwnam(user)) == NULL)
|
|
return (PAM_USER_UNKNOWN);
|
|
|
|
/* get password */
|
|
#ifndef _OPENPAM
|
|
pam_err = pam_get_item(pamh, PAM_CONV, (const void **)&conv);
|
|
if (pam_err != PAM_SUCCESS)
|
|
return (PAM_SYSTEM_ERR);
|
|
msg.msg_style = PAM_PROMPT_ECHO_OFF;
|
|
msg.msg = password_prompt;
|
|
msgp = &msg;
|
|
#endif
|
|
for (retry = 0; retry < 3; ++retry) {
|
|
#ifdef _OPENPAM
|
|
pam_err = pam_get_authtok(pamh, PAM_AUTHTOK,
|
|
(const char **)&password, NULL);
|
|
#else
|
|
resp = NULL;
|
|
pam_err = (*conv->conv)(1, &msgp, &resp, conv->appdata_ptr);
|
|
if (resp != NULL) {
|
|
if (pam_err == PAM_SUCCESS)
|
|
password = resp->resp;
|
|
else
|
|
free(resp->resp);
|
|
free(resp);
|
|
}
|
|
#endif
|
|
if (pam_err == PAM_SUCCESS)
|
|
break;
|
|
}
|
|
if (pam_err == PAM_CONV_ERR)
|
|
return (pam_err);
|
|
if (pam_err != PAM_SUCCESS)
|
|
return (PAM_AUTH_ERR);
|
|
|
|
/* compare passwords */
|
|
if ((!pwd->pw_passwd[0] && (flags & PAM_DISALLOW_NULL_AUTHTOK)) ||
|
|
(crypt_password = crypt(password, pwd->pw_passwd)) == NULL ||
|
|
strcmp(crypt_password, pwd->pw_passwd) != 0)
|
|
pam_err = PAM_AUTH_ERR;
|
|
else
|
|
pam_err = PAM_SUCCESS;
|
|
#ifndef _OPENPAM
|
|
free(password);
|
|
#endif
|
|
return (pam_err);
|
|
}
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_setcred(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
|
|
return (PAM_SUCCESS);
|
|
}
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
|
|
return (PAM_SUCCESS);
|
|
}
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_open_session(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
|
|
return (PAM_SUCCESS);
|
|
}
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_close_session(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
|
|
return (PAM_SUCCESS);
|
|
}
|
|
|
|
PAM_EXTERN int
|
|
pam_sm_chauthtok(pam_handle_t *pamh, int flags,
|
|
int argc, const char *argv[])
|
|
{
|
|
|
|
return (PAM_SERVICE_ERR);
|
|
}
|
|
|
|
#ifdef PAM_MODULE_ENTRY
|
|
PAM_MODULE_ENTRY("pam_unix");
|
|
#endif
|