/*
service.c - service entry lookup routines
This file was part of the nss_ldap library (as ldap-service.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
*/
/*
Determine the canonical name of the RPC with _nss_ldap_getrdnvalue(),
and assign any values of "cn" which do NOT match this canonical name
as aliases.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include <netinet/in.h>
#ifdef HAVE_SYS_BYTEORDER_H
#include <sys/byteorder.h>
#endif
#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 "common.h"
#include "log.h"
#include "attmap.h"
/* ( nisSchema.2.3 NAME 'ipService' SUP top STRUCTURAL
* DESC 'Abstraction an Internet Protocol service.
* Maps an IP port and protocol (such as tcp or udp)
* to one or more names; the distinguished value of
* the cn attribute denotes the service's canonical
* name'
* MUST ( cn $ ipServicePort $ ipServiceProtocol )
* MAY ( description ) )
*/
/* the search base for searches */
const char *service_base = NULL;
/* the search scope for searches */
int service_scope = LDAP_SCOPE_DEFAULT;
/* the basic search filter for searches */
const char *service_filter = "(objectClass=ipService)";
/* the attributes to request with searches */
const char *attmap_service_cn = "cn";
const char *attmap_service_ipServicePort = "ipServicePort";
const char *attmap_service_ipServiceProtocol = "ipServiceProtocol";
/* the attribute list to request with searches */
static const char *service_attrs[4];
static int mkfilter_service_byname(const char *name,
const char *protocol,
char *buffer,size_t buflen)
{
char buf2[1024],buf3[1024];
/* escape attributes */
if (myldap_escape(name,buf2,sizeof(buf2)))
return -1;
if (*protocol!='\0')
if (myldap_escape(protocol,buf3,sizeof(buf3)))
return -1;
/* build filter */
if (*protocol!='\0')
return mysnprintf(buffer,buflen,
"(&%s(%s=%s)(%s=%s))",
service_filter,
attmap_service_cn,buf2,
attmap_service_ipServiceProtocol,buf3);
else
return mysnprintf(buffer,buflen,
"(&%s(%s=%s))",
service_filter,
attmap_service_cn,buf2);
}
static int mkfilter_service_bynumber(int number,
const char *protocol,
char *buffer,size_t buflen)
{
char buf3[1024];
/* escape attribute */
if (*protocol!='\0')
if (myldap_escape(protocol,buf3,sizeof(buf3)))
return -1;
/* build filter */
if (*protocol!='\0')
return mysnprintf(buffer,buflen,
"(&%s(%s=%d)(%s=%s))",
service_filter,
attmap_service_ipServicePort,number,
attmap_service_ipServiceProtocol,buf3);
else
return mysnprintf(buffer,buflen,
"(&%s(%s=%d))",
service_filter,
attmap_service_ipServicePort,number);
}
static void service_init(void)
{
/* set up base */
if (service_base==NULL)
service_base=nslcd_cfg->ldc_base;
/* set up scope */
if (service_scope==LDAP_SCOPE_DEFAULT)
service_scope=nslcd_cfg->ldc_scope;
/* set up attribute list */
service_attrs[0]=attmap_service_cn;
service_attrs[1]=attmap_service_ipServicePort;
service_attrs[2]=attmap_service_ipServiceProtocol;
service_attrs[3]=NULL;
}
static enum nss_status _nss_ldap_parse_serv(
MYLDAP_ENTRY *entry,const char *protocol,
struct servent *service,char *buffer,size_t buflen)
{
char *port;
enum nss_status stat = NSS_STATUS_SUCCESS;
/* this is complicated and ugly, because some git (me) specified that service
* entries should expand to two entities (or more) if they have multi-valued
* ipServiceProtocol fields.
*/
if ((protocol!=NULL)&&(*protocol!='\0'))
{
register int len;
len = strlen (protocol);
if (buflen < (size_t) (len + 1))
{
return NSS_STATUS_TRYAGAIN;
}
strncpy (buffer, protocol, len);
buffer[len] = '\0';
service->s_proto = buffer;
buffer += len + 1;
buflen -= len + 1;
}
else
{
char **vals=myldap_get_values(entry,attmap_service_ipServiceProtocol);
int len;
if ((vals==NULL)||(vals[0]==NULL))
return NSS_STATUS_NOTFOUND;
/* FIXME: write an antry for each protocol */
len = strlen (vals[0]);
strncpy (buffer, vals[0], len);
buffer[len] = '\0';
service->s_proto = buffer;
buffer += len + 1;
buflen -= len + 1;
}
stat=_nss_ldap_getrdnvalue(entry,attmap_service_cn,&service->s_name,&buffer,&buflen);
if (stat != NSS_STATUS_SUCCESS)
{
return stat;
}
stat=_nss_ldap_assign_attrvals(entry,attmap_service_cn,service->s_name,&service->s_aliases,&buffer,&buflen,NULL);
if (stat != NSS_STATUS_SUCCESS)
{
return stat;
}
stat=_nss_ldap_assign_attrval(entry,attmap_service_ipServicePort,&port,&buffer,&buflen);
if (stat != NSS_STATUS_SUCCESS)
{
return stat;
}
service->s_port = atoi(port);
return NSS_STATUS_SUCCESS;
}
/* macros for expanding the NSLCD_SERVICE macro */
#define NSLCD_STRING(field) WRITE_STRING(fp,field)
#define NSLCD_STRINGLIST(field) WRITE_STRINGLIST_NULLTERM(fp,field)
#define NSLCD_INT32(field) WRITE_INT32(fp,field)
#define SERVICE_NAME result.s_name
#define SERVICE_ALIASES result.s_aliases
#define SERVICE_NUMBER result.s_port
#define SERVICE_PROTOCOL result.s_proto
static int write_service(TFILE *fp,MYLDAP_ENTRY *entry,const char *protocol)
{
int32_t tmpint32,tmp2int32,tmp3int32;
struct servent result;
char buffer[1024];
if (_nss_ldap_parse_serv(entry,protocol,&result,buffer,sizeof(buffer))!=NSS_STATUS_SUCCESS)
return 0;
/* write the result code */
WRITE_INT32(fp,NSLCD_RESULT_SUCCESS);
/* write the entry */
NSLCD_SERVICE;
return 0;
}
NSLCD_HANDLE(
service,byname,
char name[256];
char protocol[256];
char filter[1024];
READ_STRING_BUF2(fp,name,sizeof(name));
READ_STRING_BUF2(fp,protocol,sizeof(protocol));,
log_log(LOG_DEBUG,"nslcd_service_byname(%s,%s)",name,protocol);,
NSLCD_ACTION_SERVICE_BYNAME,
mkfilter_service_byname(name,protocol,filter,sizeof(filter)),
write_service(fp,entry,protocol)
)
NSLCD_HANDLE(
service,bynumber,
int number;
char protocol[256];
char filter[1024];
READ_INT32(fp,number);
READ_STRING_BUF2(fp,protocol,sizeof(protocol));,
log_log(LOG_DEBUG,"nslcd_service_bynumber(%d,%s)",number,protocol);,
NSLCD_ACTION_SERVICE_BYNUMBER,
mkfilter_service_bynumber(number,protocol,filter,sizeof(filter)),
write_service(fp,entry,protocol)
)
NSLCD_HANDLE(
service,all,
const char *filter;
/* no parameters to read */,
log_log(LOG_DEBUG,"nslcd_service_all()");,
NSLCD_ACTION_SERVICE_ALL,
(filter=service_filter,0),
write_service(fp,entry,NULL)
)