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/*
alias.c - alias entry lookup routines
This file was part of the nss_ldap library (as ldap-alias.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 <lber.h>
#include <ldap.h>
#include <aliases.h>
#if defined(HAVE_THREAD_H)
#include <thread.h>
#elif defined(HAVE_PTHREAD_H)
#include <pthread.h>
#endif
#include "ldap-nss.h"
#include "common.h"
#include "log.h"
#include "myldap.h"
#include "attmap.h"
/* Vendor-specific attributes and object classes.
* (Mainly from Sun.)
* ( 1.3.6.1.4.1.42.2.27.1.2.5 NAME 'nisMailAlias' SUP top STRUCTURAL
* DESC 'NIS mail alias'
* MUST cn
* MAY rfc822MailMember )
*/
/* the search base for searches */
const char *alias_base = NULL;
/* the search scope for searches */
int alias_scope = LDAP_SCOPE_DEFAULT;
/* the basic search filter for searches */
const char *alias_filter = "(objectClass=nisMailAlias)";
/* the attributes to request with searches */
const char *attmap_alias_cn = "cn";
const char *attmap_alias_rfc822MailMember = "rfc822MailMember";
/* the attribute list to request with searches */
static const char *alias_attrs[3];
/* create a search filter for searching an alias by name,
return -1 on errors */
static int mkfilter_alias_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))",
alias_filter,
attmap_alias_cn,buf2);
}
static void alias_init(void)
{
/* set up base */
if (alias_base==NULL)
alias_base=nslcd_cfg->ldc_base;
/* set up scope */
if (alias_scope==LDAP_SCOPE_DEFAULT)
alias_scope=nslcd_cfg->ldc_scope;
/* set up attribute list */
alias_attrs[0]=attmap_alias_cn;
alias_attrs[1]=attmap_alias_rfc822MailMember;
alias_attrs[2]=NULL;
}
static enum nss_status _nss_ldap_parse_alias(
MYLDAP_ENTRY *entry,struct aliasent *result,
char *buffer,size_t buflen)
{
/* FIXME: fix following problem:
if the entry has multiple cn fields we may end up
sending the wrong cn, we should return the requested
CN instead, otherwise write an entry for each cn */
enum nss_status stat;
stat=_nss_ldap_getrdnvalue(entry,attmap_alias_cn,&result->alias_name,&buffer,&buflen);
if (stat != NSS_STATUS_SUCCESS)
return stat;
stat=_nss_ldap_assign_attrvals(entry,attmap_alias_rfc822MailMember,NULL,&result->alias_members,&buffer,&buflen,&result->alias_members_len);
return stat;
}
/* macros for expanding the NSLCD_ALIAS macro */
#define NSLCD_STRING(field) WRITE_STRING(fp,field)
#define NSLCD_STRINGLIST(field) WRITE_STRINGLIST_NUM(fp,field,result.alias_members_len)
#define ALIAS_NAME result.alias_name
#define ALIAS_RCPTS result.alias_members
static int write_alias(TFILE *fp,MYLDAP_ENTRY *entry)
{
struct aliasent result;
char buffer[1024];
int32_t tmpint32,tmp2int32;
if (_nss_ldap_parse_alias(entry,&result,buffer,sizeof(buffer))!=NSS_STATUS_SUCCESS)
return 0;
/* write the result code */
WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
/* write the entry */
NSLCD_ALIAS;
return 0;
}
NSLCD_HANDLE(
alias,byname,
char name[256];
char filter[1024];
READ_STRING_BUF2(fp,name,sizeof(name));,
log_log(LOG_DEBUG,"nslcd_alias_byname(%s)",name);,
NSLCD_ACTION_ALIAS_BYNAME,
mkfilter_alias_byname(name,filter,sizeof(filter)),
write_alias(fp,entry)
)
NSLCD_HANDLE(
alias,all,
const char *filter;
/* no parameters to read */,
log_log(LOG_DEBUG,"nslcd_alias_all()");,
NSLCD_ACTION_ALIAS_ALL,
(filter=alias_filter,0),
write_alias(fp,entry)
)
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