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/*
shadow.c - service entry lookup routines
Parts of this file were part of the nss_ldap library (as ldap-spwd.c)
which has been forked into the nss-ldapd library.
Copyright (C) 1997-2005 Luke Howard
Copyright (C) 2006 West Consulting
Copyright (C) 2006, 2007 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "log.h"
#include "myldap.h"
#include "cfg.h"
#include "attmap.h"
/* ( nisSchema.2.1 NAME 'shadowAccount' SUP top AUXILIARY
* DESC 'Additional attributes for shadow passwords'
* MUST uid
* MAY ( userPassword $ shadowLastChange $ shadowMin
* shadowMax $ shadowWarning $ shadowInactive $
* shadowExpire $ shadowFlag $ description ) )
*/
/* the search base for searches */
const char *shadow_base = NULL;
/* the search scope for searches */
int shadow_scope = LDAP_SCOPE_DEFAULT;
/* the basic search filter for searches */
const char *shadow_filter = "(objectClass=shadowAccount)";
/* the attributes to request with searches */
const char *attmap_shadow_uid = "uid";
const char *attmap_shadow_userPassword = "userPassword";
const char *attmap_shadow_shadowLastChange = "shadowLastChange";
const char *attmap_shadow_shadowMin = "shadowMin";
const char *attmap_shadow_shadowMax = "shadowMax";
const char *attmap_shadow_shadowWarning = "shadowWarning";
const char *attmap_shadow_shadowInactive = "shadowInactive";
const char *attmap_shadow_shadowExpire = "shadowExpire";
const char *attmap_shadow_shadowFlag = "shadowFlag";
/* default values for attributes */
static const char *default_shadow_userPassword = "*"; /* unmatchable */
static const char *default_shadow_shadowLastChange = "-1";
static const char *default_shadow_shadowMin = "-1";
static const char *default_shadow_shadowMax = "-1";
static const char *default_shadow_shadowWarning = "-1";
static const char *default_shadow_shadowInactive = "-1";
static const char *default_shadow_shadowExpire = "-1";
static const char *default_shadow_shadowFlag = "0";
/* the attribute list to request with searches */
static const char *shadow_attrs[10];
static int mkfilter_shadow_byname(const char *name,
char *buffer,size_t buflen)
{
char buf2[1024];
/* escape attribute */
if(myldap_escape(name,buf2,sizeof(buf2)))
return -1;
/* build filter */
return mysnprintf(buffer,buflen,
"(&%s(%s=%s))",
shadow_filter,
attmap_shadow_uid,buf2);
}
static void shadow_init(void)
{
/* set up base */
if (shadow_base==NULL)
shadow_base=nslcd_cfg->ldc_base;
/* set up scope */
if (shadow_scope==LDAP_SCOPE_DEFAULT)
shadow_scope=nslcd_cfg->ldc_scope;
/* set up attribute list */
shadow_attrs[0]=attmap_shadow_uid;
shadow_attrs[1]=attmap_shadow_userPassword;
shadow_attrs[2]=attmap_shadow_shadowLastChange;
shadow_attrs[3]=attmap_shadow_shadowMax;
shadow_attrs[4]=attmap_shadow_shadowMin;
shadow_attrs[5]=attmap_shadow_shadowWarning;
shadow_attrs[6]=attmap_shadow_shadowInactive;
shadow_attrs[7]=attmap_shadow_shadowExpire;
shadow_attrs[8]=attmap_shadow_shadowFlag;
shadow_attrs[9]=NULL;
}
static long to_date(long date)
{
/* do some special handling for date values on AD */
if (strcasecmp(attmap_shadow_shadowLastChange,"pwdLastSet")==0)
{
date=date/864000000000LL-134774LL;
if (date>99999)
date=99999;
}
return date;
}
#ifndef UF_DONT_EXPIRE_PASSWD
#define UF_DONT_EXPIRE_PASSWD 0x10000
#endif
#define GET_OPTIONAL_LONG(var,att) \
tmpvalues=myldap_get_values(entry,attmap_shadow_##att); \
if ((tmpvalues==NULL)||(tmpvalues[0]==NULL)) \
var=strtol(default_shadow_##att,NULL,0); \
else \
{ \
if (tmpvalues[1]!=NULL) \
{ \
log_log(LOG_WARNING,"shadow entry %s contains multiple %s values", \
myldap_get_dn(entry),attmap_shadow_##att); \
} \
var=strtol(tmpvalues[0],&tmp,0); \
if ((*(tmpvalues[0])=='\0')||(*tmp!='\0')) \
{ \
log_log(LOG_WARNING,"shadow entry %s contains non-numeric %s value", \
myldap_get_dn(entry),attmap_shadow_##att); \
return 0; \
} \
}
#define GET_OPTIONAL_DATE(var,att) \
GET_OPTIONAL_LONG(var,att); \
var=to_date(var);
static int write_shadow(TFILE *fp,MYLDAP_ENTRY *entry,const char *requser)
{
int32_t tmpint32;
const char *tmparr[2];
const char **tmpvalues;
char *tmp;
const char **usernames;
const char *passwd;
long lastchangedate;
long mindays;
long maxdays;
long warndays;
long inactdays;
long expiredate;
unsigned long flag;
int i;
/* get username */
if (requser!=NULL)
{
usernames=tmparr;
usernames[0]=requser;
usernames[1]=NULL;
}
else
{
usernames=myldap_get_values(entry,attmap_shadow_uid);
if ((usernames==NULL)||(usernames[0]==NULL))
{
log_log(LOG_WARNING,"passwd entry %s does not contain %s value",
myldap_get_dn(entry),attmap_shadow_uid);
return 0;
}
}
/* get password */
passwd=get_userpassword(entry,attmap_shadow_userPassword);
if (passwd==NULL)
passwd=default_shadow_userPassword;
/* get lastchange */
GET_OPTIONAL_DATE(lastchangedate,shadowLastChange);
/* get mindays */
GET_OPTIONAL_LONG(mindays,shadowMin);
/* get maxdays */
GET_OPTIONAL_LONG(maxdays,shadowMax);
/* get warndays */
GET_OPTIONAL_LONG(warndays,shadowWarning);
/* get inactdays */
GET_OPTIONAL_LONG(inactdays,shadowInactive);
/* get expire */
GET_OPTIONAL_DATE(expiredate,shadowExpire);
/* get flag */
GET_OPTIONAL_LONG(flag,shadowFlag);
/* if we're using AD handle the flag specially */
if (strcasecmp(attmap_shadow_shadowLastChange,"pwdLastSet")==0)
{
if (flag&UF_DONT_EXPIRE_PASSWD)
maxdays=99999;
flag=0;
}
/* write the entries */
for (i=0;usernames[i]!=NULL;i++)
{
WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
WRITE_STRING(fp,usernames[i]);
WRITE_STRING(fp,passwd);
WRITE_INT32(fp,lastchangedate);
WRITE_INT32(fp,mindays);
WRITE_INT32(fp,maxdays);
WRITE_INT32(fp,warndays);
WRITE_INT32(fp,inactdays);
WRITE_INT32(fp,expiredate);
WRITE_INT32(fp,flag);
}
return 0;
}
NSLCD_HANDLE(
shadow,byname,
char name[256];
char filter[1024];
READ_STRING_BUF2(fp,name,sizeof(name));,
log_log(LOG_DEBUG,"nslcd_shadow_byname(%s)",name);,
NSLCD_ACTION_SHADOW_BYNAME,
mkfilter_shadow_byname(name,filter,sizeof(filter)),
write_shadow(fp,entry,name)
)
NSLCD_HANDLE(
shadow,all,
const char *filter;
/* no parameters to read */,
log_log(LOG_DEBUG,"nslcd_shadow_all()");,
NSLCD_ACTION_SHADOW_ALL,
(filter=shadow_filter,0),
write_shadow(fp,entry,NULL)
)
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