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/* service.c - service lookup routines */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2008-2022 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.2.3 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 basic search filter for searches */
static struct berval service_filter = BER_BVC("(objectClass=ipService)");
/* the attributes to request with searches */
static struct berval service_keys[] = {
BER_BVC("cn"),
BER_BVC("ipServicePort"),
BER_BVC("ipServiceProtocol"),
BER_BVNULL
};
static int mkfilter_service_byname(nssov_mapinfo *mi,struct berval *name,
struct berval *protocol,struct berval *buf)
{
char buf2[1024],buf3[1024];
struct berval bv2 = {sizeof(buf2),buf2};
struct berval bv3 = {sizeof(buf3),buf3};
/* escape attributes */
if (nssov_escape(name,&bv2))
return -1;
if (!BER_BVISNULL(protocol)) {
if (nssov_escape(protocol,&bv3))
return -1;
if (bv2.bv_len + mi->mi_filter.bv_len + mi->mi_attrs[0].an_desc->ad_cname.bv_len +
bv3.bv_len + mi->mi_attrs[2].an_desc->ad_cname.bv_len + 9 > buf->bv_len )
return -1;
buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s)(%s=%s))",
mi->mi_filter.bv_val,
mi->mi_attrs[0].an_desc->ad_cname.bv_val, bv2.bv_val,
mi->mi_attrs[2].an_desc->ad_cname.bv_val, bv3.bv_val );
} else {
if (bv2.bv_len + mi->mi_filter.bv_len + mi->mi_attrs[0].an_desc->ad_cname.bv_len + 6 >
buf->bv_len )
return -1;
buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s))",
mi->mi_filter.bv_val, mi->mi_attrs[0].an_desc->ad_cname.bv_val,
bv2.bv_val );
}
return 0;
}
static int mkfilter_service_bynumber(nssov_mapinfo *mi,struct berval *numb,
struct berval *protocol,struct berval *buf)
{
char buf2[1024];
struct berval bv2 = {sizeof(buf2),buf2};
/* escape attribute */
if (!BER_BVISNULL(protocol)) {
if (nssov_escape(protocol,&bv2))
return -1;
if (numb->bv_len + mi->mi_filter.bv_len + mi->mi_attrs[1].an_desc->ad_cname.bv_len +
bv2.bv_len + mi->mi_attrs[2].an_desc->ad_cname.bv_len + 9 > buf->bv_len )
return -1;
buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s)(%s=%s))",
mi->mi_filter.bv_val,
mi->mi_attrs[1].an_desc->ad_cname.bv_val, numb->bv_val,
mi->mi_attrs[2].an_desc->ad_cname.bv_val, bv2.bv_val );
} else {
if (numb->bv_len + mi->mi_filter.bv_len + mi->mi_attrs[1].an_desc->ad_cname.bv_len + 6 >
buf->bv_len )
return -1;
buf->bv_len = snprintf(buf->bv_val, buf->bv_len, "(&%s(%s=%s))",
mi->mi_filter.bv_val, mi->mi_attrs[1].an_desc->ad_cname.bv_val,
numb->bv_val );
}
return 0;
}
NSSOV_INIT(service)
NSSOV_CBPRIV(service,
char nbuf[256];
char pbuf[256];
struct berval name;
struct berval prot;);
static int write_service(nssov_service_cbp *cbp,Entry *entry)
{
int32_t tmpint32;
struct berval name,*names,*protos;
struct berval tmparr[2];
Attribute *a;
char *tmp;
int port;
int i,numname,dupname,numprot;
/* get the most canonical name */
nssov_find_rdnval( &entry->e_nname, cbp->mi->mi_attrs[0].an_desc, &name );
/* get the other names for the rpc */
a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[0].an_desc );
if ( !a || !a->a_vals )
{
Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val );
return 0;
}
names = a->a_vals;
numname = a->a_numvals;
/* if the name is not yet found, get the first entry from names */
if (BER_BVISNULL(&name)) {
name=names[0];
dupname = 0;
} else {
dupname = -1;
for (i=0; i<numname; i++) {
if ( bvmatch(&name, &a->a_nvals[i])) {
dupname = i;
break;
}
}
}
/* get the service number */
a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[1].an_desc );
if ( !a || !a->a_vals )
{
Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
return 0;
} else if ( a->a_numvals > 1 ) {
Debug(LDAP_DEBUG_ANY,"service entry %s contains multiple %s values\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
}
port=(int)strtol(a->a_vals[0].bv_val,&tmp,0);
if (*tmp)
{
Debug(LDAP_DEBUG_ANY,"service entry %s contains non-numeric %s value\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
return 0;
}
/* get protocols */
if (BER_BVISNULL(&cbp->prot))
{
a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[2].an_desc );
if ( !a || !a->a_vals )
{
Debug(LDAP_DEBUG_ANY,"service entry %s does not contain %s value\n",
entry->e_name.bv_val, cbp->mi->mi_attrs[2].an_desc->ad_cname.bv_val );
return 0;
}
protos = a->a_vals;
numprot = a->a_numvals;
}
else
{
protos=tmparr;
protos[0]=cbp->prot;
BER_BVZERO(&protos[1]);
numprot = 1;
}
/* write the entries */
for (i=0;i<numprot;i++)
{
int j;
WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
WRITE_BERVAL(cbp->fp,&name);
if ( dupname >= 0 ) {
WRITE_INT32(cbp->fp,numname-1);
} else {
WRITE_INT32(cbp->fp,numname);
}
for (j=0;j<numname;j++) {
if (j == dupname) continue;
WRITE_BERVAL(cbp->fp,&names[j]);
}
WRITE_INT32(cbp->fp,port);
WRITE_BERVAL(cbp->fp,&protos[i]);
}
return 0;
}
NSSOV_CB(service)
NSSOV_HANDLE(
service,byname,
char fbuf[1024];
struct berval filter = {sizeof(fbuf)};
filter.bv_val = fbuf;
READ_STRING(fp,cbp.nbuf);
cbp.name.bv_len = tmpint32;
cbp.name.bv_val = cbp.nbuf;
READ_STRING(fp,cbp.pbuf);
cbp.prot.bv_len = tmpint32;
cbp.prot.bv_val = tmpint32 ? cbp.pbuf : NULL;,
Debug(LDAP_DEBUG_TRACE,"nssov_service_byname(%s,%s)\n",cbp.name.bv_val,cbp.prot.bv_val ? cbp.prot.bv_val : "");,
NSLCD_ACTION_SERVICE_BYNAME,
mkfilter_service_byname(cbp.mi,&cbp.name,&cbp.prot,&filter)
)
NSSOV_HANDLE(
service,bynumber,
int number;
char fbuf[1024];
struct berval filter = {sizeof(fbuf)};
filter.bv_val = fbuf;
READ_INT32(fp,number);
cbp.name.bv_val = cbp.nbuf;
cbp.name.bv_len = snprintf(cbp.nbuf,sizeof(cbp.nbuf),"%d",number);
READ_STRING(fp,cbp.pbuf);
cbp.prot.bv_len = tmpint32;
cbp.prot.bv_val = tmpint32 ? cbp.pbuf : NULL;,
Debug(LDAP_DEBUG_TRACE,"nssov_service_bynumber(%s,%s)\n",cbp.name.bv_val,cbp.prot.bv_val);,
NSLCD_ACTION_SERVICE_BYNUMBER,
mkfilter_service_bynumber(cbp.mi,&cbp.name,&cbp.prot,&filter)
)
NSSOV_HANDLE(
service,all,
struct berval filter;
/* no parameters to read */
BER_BVZERO(&cbp.prot);,
Debug(LDAP_DEBUG_TRACE,"nssov_service_all()\n");,
NSLCD_ACTION_SERVICE_ALL,
(filter=cbp.mi->mi_filter,0)
)
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