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/*
service.c - service entry lookup routines
Parts of this file were part of the nss_ldap library (as ldap-service.c)
which has been forked into the nss-pam-ldapd library.
Copyright (C) 1997-2005 Luke Howard
Copyright (C) 2006 West Consulting
Copyright (C) 2006, 2007, 2009, 2010 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.2.3 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_bases[NSS_LDAP_CONFIG_MAX_BASES] = { 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 safename[300],safeprotocol[300];
/* escape attributes */
if (myldap_escape(name,safename,sizeof(safename)))
return -1;
/* build filter */
if (*protocol!='\0')
{
if (myldap_escape(protocol,safeprotocol,sizeof(safeprotocol)))
return -1;
return mysnprintf(buffer,buflen,
"(&%s(%s=%s)(%s=%s))",
service_filter,
attmap_service_cn,safename,
attmap_service_ipServiceProtocol,safeprotocol);
}
else
return mysnprintf(buffer,buflen,
"(&%s(%s=%s))",
service_filter,
attmap_service_cn,safename);
}
static int mkfilter_service_bynumber(int number,
const char *protocol,
char *buffer,size_t buflen)
{
char safeprotocol[300];
if (*protocol!='\0')
{
if (myldap_escape(protocol,safeprotocol,sizeof(safeprotocol)))
return -1;
return mysnprintf(buffer,buflen,
"(&%s(%s=%d)(%s=%s))",
service_filter,
attmap_service_ipServicePort,number,
attmap_service_ipServiceProtocol,safeprotocol);
}
else
return mysnprintf(buffer,buflen,
"(&%s(%s=%d))",
service_filter,
attmap_service_ipServicePort,number);
}
void service_init(void)
{
int i;
/* set up search bases */
if (service_bases[0]==NULL)
for (i=0;i<NSS_LDAP_CONFIG_MAX_BASES;i++)
service_bases[i]=nslcd_cfg->ldc_bases[i];
/* 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 int write_service(TFILE *fp,MYLDAP_ENTRY *entry,
const char *reqname,const char *reqprotocol)
{
int32_t tmpint32,tmp2int32,tmp3int32;
const char *name;
const char **aliases;
const char **ports;
const char **protocols;
char *tmp;
int port;
int i;
/* get the most canonical name */
name=myldap_get_rdn_value(entry,attmap_service_cn);
/* get the other names for the service entries */
aliases=myldap_get_values(entry,attmap_service_cn);
if ((aliases==NULL)||(aliases[0]==NULL))
{
log_log(LOG_WARNING,"service entry %s does not contain %s value",
myldap_get_dn(entry),attmap_service_cn);
return 0;
}
/* if the service name is not yet found, get the first entry */
if (name==NULL)
name=aliases[0];
/* check case of returned servies entry */
if ((reqname!=NULL)&&(strcmp(reqname,name)!=0))
{
for (i=0;(aliases[i]!=NULL)&&(strcmp(reqname,aliases[i])!=0);i++)
/* nothing here */ ;
if (aliases[i]==NULL)
return 0; /* neither the name nor any of the aliases matched */
}
/* get the service number */
ports=myldap_get_values(entry,attmap_service_ipServicePort);
if ((ports==NULL)||(ports[0]==NULL))
{
log_log(LOG_WARNING,"service entry %s does not contain %s value",
myldap_get_dn(entry),attmap_service_ipServicePort);
return 0;
}
else if (ports[1]!=NULL)
{
log_log(LOG_WARNING,"service entry %s contains multiple %s values",
myldap_get_dn(entry),attmap_service_ipServicePort);
}
port=(int)strtol(ports[0],&tmp,0);
if ((*(ports[0])=='\0')||(*tmp!='\0'))
{
log_log(LOG_WARNING,"service entry %s contains non-numeric %s value",
myldap_get_dn(entry),attmap_service_ipServicePort);
return 0;
}
/* get protocols */
protocols=myldap_get_values(entry,attmap_service_ipServiceProtocol);
if ((protocols==NULL)||(protocols[0]==NULL))
{
log_log(LOG_WARNING,"service entry %s does not contain %s value",
myldap_get_dn(entry),attmap_service_ipServiceProtocol);
return 0;
}
/* write the entries */
for (i=0;protocols[i]!=NULL;i++)
if ((reqprotocol==NULL)||(*reqprotocol=='\0')||(strcmp(reqprotocol,protocols[i])==0))
{
WRITE_INT32(fp,NSLCD_RESULT_BEGIN);
WRITE_STRING(fp,name);
WRITE_STRINGLIST_EXCEPT(fp,aliases,name);
WRITE_INT32(fp,port);
WRITE_STRING(fp,protocols[i]);
}
return 0;
}
NSLCD_HANDLE(
service,byname,
char name[256];
char protocol[256];
char filter[1024];
READ_STRING(fp,name);
READ_STRING(fp,protocol);
log_setrequest("service=\"%s\"/%s",name,protocol);,
NSLCD_ACTION_SERVICE_BYNAME,
mkfilter_service_byname(name,protocol,filter,sizeof(filter)),
write_service(fp,entry,name,protocol)
)
NSLCD_HANDLE(
service,bynumber,
int number;
char protocol[256];
char filter[1024];
READ_INT32(fp,number);
READ_STRING(fp,protocol);
log_setrequest("service=%d/%s",number,protocol);,
NSLCD_ACTION_SERVICE_BYNUMBER,
mkfilter_service_bynumber(number,protocol,filter,sizeof(filter)),
write_service(fp,entry,NULL,protocol)
)
NSLCD_HANDLE(
service,all,
const char *filter;
log_setrequest("service(all)");,
NSLCD_ACTION_SERVICE_ALL,
(filter=service_filter,0),
write_service(fp,entry,NULL,NULL)
)
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