openldap/contrib/slapd-modules/nssov/shadow.c
Kurt Zeilenga a5abeb92ec Update contrib notices to reflect that they are distributed as part of
OpenLDAP Software (though they may not necessarily be supported by the
OpenLDAP Project).  Assistance in updating ACKNOWLEDGEMENTS welcomed.
2009-08-16 22:55:23 +00:00

258 lines
6.9 KiB
C

/* shadow.c - shadow account lookup routines */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2008-2009 The OpenLDAP Foundation.
* Portions Copyright 2008 by Howard Chu, Symas Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENTS:
* This code references portions of the nss-ldapd package
* written by Arthur de Jong. The nss-ldapd code was forked
* from the nss-ldap library written by Luke Howard.
*/
#include "nssov.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 basic search filter for searches */
static struct berval shadow_filter = BER_BVC("(objectClass=shadowAccount)");
/* the attributes to request with searches */
static struct berval shadow_keys[] = {
BER_BVC("uid"),
BER_BVC("userPassword"),
BER_BVC("shadowLastChange"),
BER_BVC("shadowMin"),
BER_BVC("shadowMax"),
BER_BVC("shadowWarning"),
BER_BVC("shadowInactive"),
BER_BVC("shadowExpire"),
BER_BVC("shadowFlag"),
BER_BVNULL
};
#define UID_KEY 0
#define PWD_KEY 1
#define CHG_KEY 2
#define MIN_KEY 3
#define MAX_KEY 4
#define WRN_KEY 5
#define INA_KEY 6
#define EXP_KEY 7
#define FLG_KEY 8
/* default values for attributes */
static struct berval default_shadow_userPassword = BER_BVC("*"); /* unmatchable */
static int default_nums[] = { 0,0,
-1, /* LastChange */
-1, /* Min */
-1, /* Max */
-1, /* Warning */
-1, /* Inactive */
-1, /* Expire */
0 /* Flag */
};
NSSOV_INIT(shadow)
static long to_date(struct berval *date,AttributeDescription *attr)
{
long value;
char *tmp;
/* do some special handling for date values on AD */
if (strcasecmp(attr->ad_cname.bv_val,"pwdLastSet")==0)
{
char buffer[8];
size_t l;
/* we expect an AD 64-bit datetime value;
we should do date=date/864000000000-134774
but that causes problems on 32-bit platforms,
first we devide by 1000000000 by stripping the
last 9 digits from the string and going from there */
l=date->bv_len-9;
if (l<1 || l>(sizeof(buffer)-1))
return 0; /* error */
strncpy(buffer,date->bv_val,l);
buffer[l]='\0';
value=strtol(buffer,&tmp,0);
if ((buffer[0]=='\0')||(*tmp!='\0'))
{
Debug(LDAP_DEBUG_ANY,"shadow entry contains non-numeric %s value\n",
attr->ad_cname.bv_val,0,0);
return 0;
}
return value/864-134774;
/* note that AD does not have expiry dates but a lastchangeddate
and some value that needs to be added */
}
value=strtol(date->bv_val,&tmp,0);
if ((date->bv_val[0]=='\0')||(*tmp!='\0'))
{
Debug(LDAP_DEBUG_ANY,"shadow entry contains non-numeric %s value\n",
attr->ad_cname.bv_val,0,0);
return 0;
}
return value;
}
#ifndef UF_DONT_EXPIRE_PASSWD
#define UF_DONT_EXPIRE_PASSWD 0x10000
#endif
#define GET_OPTIONAL_LONG(var,key) \
a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[key].an_desc); \
if ( !a || BER_BVISNULL(&a->a_vals[0])) \
var = default_nums[key]; \
else \
{ \
if (a->a_numvals > 1) \
{ \
Debug(LDAP_DEBUG_ANY,"shadow entry %s contains multiple %s values\n", \
entry->e_name.bv_val, cbp->mi->mi_attrs[key].an_desc->ad_cname.bv_val,0); \
} \
var=strtol(a->a_vals[0].bv_val,&tmp,0); \
if ((a->a_vals[0].bv_val[0]=='\0')||(*tmp!='\0')) \
{ \
Debug(LDAP_DEBUG_ANY,"shadow entry %s contains non-numeric %s value\n", \
entry->e_name.bv_val, cbp->mi->mi_attrs[key].an_desc->ad_cname.bv_val,0); \
return 0; \
} \
}
#define GET_OPTIONAL_DATE(var,key) \
a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[key].an_desc); \
if ( !a || BER_BVISNULL(&a->a_vals[0])) \
var = default_nums[key]; \
else \
{ \
if (a->a_numvals > 1) \
{ \
Debug(LDAP_DEBUG_ANY,"shadow entry %s contains multiple %s values\n", \
entry->e_name.bv_val, cbp->mi->mi_attrs[key].an_desc->ad_cname.bv_val,0); \
} \
var=to_date(&a->a_vals[0],cbp->mi->mi_attrs[key].an_desc); \
}
NSSOV_CBPRIV(shadow,
char buf[256];
struct berval name;);
static int write_shadow(nssov_shadow_cbp *cbp,Entry *entry)
{
struct berval tmparr[2];
struct berval *names;
Attribute *a;
char *tmp;
struct berval passwd = {0};
long lastchangedate;
long mindays;
long maxdays;
long warndays;
long inactdays;
long expiredate;
unsigned long flag;
int i;
int32_t tmpint32;
/* get username */
if (BER_BVISNULL(&cbp->name))
{
a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[UID_KEY].an_desc);
if (!a)
{
Debug(LDAP_DEBUG_ANY,"shadow entry %s does not contain %s value\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[UID_KEY].an_desc->ad_cname.bv_val,0);
return 0;
}
names = a->a_vals;
}
else
{
names=tmparr;
names[0]=cbp->name;
BER_BVZERO(&names[1]);
}
/* get password */
a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[PWD_KEY].an_desc);
if ( a )
get_userpassword(&a->a_vals[0], &passwd);
if (BER_BVISNULL(&passwd))
passwd=default_shadow_userPassword;
/* get lastchange date */
GET_OPTIONAL_DATE(lastchangedate,CHG_KEY);
/* get mindays */
GET_OPTIONAL_LONG(mindays,MIN_KEY);
/* get maxdays */
GET_OPTIONAL_LONG(maxdays,MAX_KEY);
/* get warndays */
GET_OPTIONAL_LONG(warndays,WRN_KEY);
/* get inactdays */
GET_OPTIONAL_LONG(inactdays,INA_KEY);
/* get expire date */
GET_OPTIONAL_LONG(expiredate,EXP_KEY);
/* get flag */
GET_OPTIONAL_LONG(flag,FLG_KEY);
/* if we're using AD handle the flag specially */
if (strcasecmp(cbp->mi->mi_attrs[CHG_KEY].an_desc->ad_cname.bv_val,"pwdLastSet")==0)
{
if (flag&UF_DONT_EXPIRE_PASSWD)
maxdays=99999;
flag=0;
}
/* write the entries */
for (i=0;!BER_BVISNULL(&names[i]);i++)
{
WRITE_INT32(cbp->fp,NSLCD_RESULT_SUCCESS);
WRITE_BERVAL(cbp->fp,&names[i]);
WRITE_BERVAL(cbp->fp,&passwd);
WRITE_INT32(cbp->fp,lastchangedate);
WRITE_INT32(cbp->fp,mindays);
WRITE_INT32(cbp->fp,maxdays);
WRITE_INT32(cbp->fp,warndays);
WRITE_INT32(cbp->fp,inactdays);
WRITE_INT32(cbp->fp,expiredate);
WRITE_INT32(cbp->fp,flag);
}
return 0;
}
NSSOV_CB(shadow)
NSSOV_HANDLE(
shadow,byname,
char fbuf[1024];
struct berval filter = {sizeof(fbuf)};
filter.bv_val = fbuf;
READ_STRING_BUF2(fp,cbp.buf,sizeof(cbp.buf));,
cbp.name.bv_len = tmpint32;
cbp.name.bv_val = cbp.buf;
Debug(LDAP_DEBUG_ANY,"nssov_shadow_byname(%s)\n",cbp.name.bv_val,0,0);,
NSLCD_ACTION_SHADOW_BYNAME,
nssov_filter_byname(cbp.mi,UID_KEY,&cbp.name,&filter)
)
NSSOV_HANDLE(
shadow,all,
struct berval filter;
/* no parameters to read */
BER_BVZERO(&cbp.name);,
Debug(LDAP_DEBUG_ANY,"nssov_shadow_all()\n",0,0,0);,
NSLCD_ACTION_SHADOW_ALL,
(filter=cbp.mi->mi_filter,0)
)