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/*
Copyright (C) 1997-2005 Luke Howard
This file is part of the nss_ldap library.
Contributed by Luke Howard, <lukeh@padl.com>, 1997.
The nss_ldap library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The nss_ldap library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the nss_ldap library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <sys/types.h>
#include <sys/param.h>
#include <string.h>
#include <pwd.h>
#include <errno.h>
#ifdef HAVE_LBER_H
#include <lber.h>
#endif
#ifdef HAVE_LDAP_H
#include <ldap.h>
#endif
#if defined(HAVE_THREAD_H)
#include <thread.h>
#elif defined(HAVE_PTHREAD_H)
#include <pthread.h>
#endif
#include "ldap-nss.h"
#include "util.h"
static struct ent_context *pw_context = NULL;
static inline enum nss_status _nss_ldap_assign_emptystring(
char **valptr, char **buffer, size_t * buflen)
{
if (*buflen < 2)
return NSS_STATUS_TRYAGAIN;
*valptr = *buffer;
**valptr = '\0';
(*buffer)++;
(*buflen)--;
return NSS_STATUS_SUCCESS;
}
/* FIXME: make this non-static for now for testing purposes */
enum nss_status _nss_ldap_parse_pw (LDAPMessage * e,
struct ldap_state * pvt,
void *result, char *buffer, size_t buflen)
{
struct passwd *pw = (struct passwd *) result;
char *uid, *gid;
enum nss_status stat;
char tmpbuf[ sizeof( uid_t ) * 8 / 3 + 2 ];
size_t tmplen;
char *tmp;
tmpbuf[ sizeof(tmpbuf) - 1 ] = '\0';
if (_nss_ldap_oc_check (e, "shadowAccount") == NSS_STATUS_SUCCESS)
{
/* don't include password for shadowAccount */
if (buflen < 3)
return NSS_STATUS_TRYAGAIN;
pw->pw_passwd = buffer;
strcpy (buffer, "x");
buffer += 2;
buflen -= 2;
}
else
{
stat =
_nss_ldap_assign_userpassword (e, ATM (LM_PASSWD, userPassword),
&pw->pw_passwd, &buffer, &buflen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
}
stat =
_nss_ldap_assign_attrval (e, ATM (LM_PASSWD, uid), &pw->pw_name, &buffer,
&buflen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
tmp = tmpbuf;
tmplen = sizeof (tmpbuf) - 1;
stat =
_nss_ldap_assign_attrval (e, AT (uidNumber), &uid, &tmp, &tmplen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
pw->pw_uid = (*uid == '\0') ? UID_NOBODY : (uid_t) atol (uid);
tmp = tmpbuf;
tmplen = sizeof (tmpbuf) - 1;
stat =
_nss_ldap_assign_attrval (e, ATM (LM_PASSWD, gidNumber), &gid, &tmp,
&tmplen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
pw->pw_gid = (*gid == '\0') ? GID_NOBODY : (gid_t) atol (gid);
stat =
_nss_ldap_assign_attrval (e, AT (gecos), &pw->pw_gecos, &buffer,
&buflen);
if (stat != NSS_STATUS_SUCCESS)
{
pw->pw_gecos = NULL;
stat =
_nss_ldap_assign_attrval (e, ATM (LM_PASSWD, cn), &pw->pw_gecos,
&buffer, &buflen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
}
stat =
_nss_ldap_assign_attrval (e, AT (homeDirectory), &pw->pw_dir, &buffer,
&buflen);
if (stat != NSS_STATUS_SUCCESS)
(void) _nss_ldap_assign_emptystring (&pw->pw_dir, &buffer, &buflen);
stat =
_nss_ldap_assign_attrval (e, AT (loginShell), &pw->pw_shell, &buffer,
&buflen);
if (stat != NSS_STATUS_SUCCESS)
(void) _nss_ldap_assign_emptystring (&pw->pw_shell, &buffer, &buflen);
#ifdef HAVE_PASSWD_PW_CHANGE
tmp = NULL;
stat =
_nss_ldap_assign_attrval (e, AT (shadowMax), &tmp, &buffer, &buflen);
pw->pw_change = (stat == NSS_STATUS_SUCCESS) ? atol(tmp) * (24*60*60) : 0;
if (pw->pw_change > 0)
{
tmp = NULL;
stat =
_nss_ldap_assign_attrval (e, AT (shadowLastChange), &tmp, &buffer,
&buflen);
if (stat == NSS_STATUS_SUCCESS)
pw->pw_change += atol(tmp);
else
pw->pw_change = 0;
}
#endif /* HAVE_PASSWD_PW_CHANGE */
#ifdef HAVE_PASSWD_PW_EXPIRE
tmp = NULL;
stat =
_nss_ldap_assign_attrval (e, AT (shadowExpire), &tmp, &buffer, &buflen);
pw->pw_expire = (stat == NSS_STATUS_SUCCESS) ? atol(tmp) * (24*60*60) : 0;
#endif /* HAVE_PASSWD_PW_EXPIRE */
return NSS_STATUS_SUCCESS;
}
enum nss_status _nss_ldap_getpwnam_r(const char *name,
struct passwd *result,
char *buffer,size_t buflen,int *errnop)
{
LOOKUP_NAME (name, result, buffer, buflen, errnop, _nss_ldap_filt_getpwnam,
LM_PASSWD, _nss_ldap_parse_pw, LDAP_NSS_BUFLEN_DEFAULT);
}
enum nss_status _nss_ldap_getpwuid_r(uid_t uid,
struct passwd *result,
char *buffer,size_t buflen,int *errnop)
{
LOOKUP_NUMBER (uid, result, buffer, buflen, errnop, _nss_ldap_filt_getpwuid,
LM_PASSWD, _nss_ldap_parse_pw, LDAP_NSS_BUFLEN_DEFAULT);
}
enum nss_status _nss_ldap_setpwent(void)
{
LOOKUP_SETENT (pw_context);
}
enum nss_status _nss_ldap_getpwent_r(struct passwd *result,
char *buffer,size_t buflen,int *errnop)
{
LOOKUP_GETENT (pw_context, result, buffer, buflen, errnop,
_nss_ldap_filt_getpwent, LM_PASSWD, _nss_ldap_parse_pw,
LDAP_NSS_BUFLEN_DEFAULT);
}
enum nss_status _nss_ldap_endpwent(void)
{
LOOKUP_ENDENT (pw_context);
}
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