91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
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* Copyright (C) 2013 Marin Hannache <ipxe@mareo.fr>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <byteswap.h>
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#include <ipxe/socket.h>
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#include <ipxe/tcpip.h>
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#include <ipxe/in.h>
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#include <ipxe/iobuf.h>
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#include <ipxe/xfer.h>
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#include <ipxe/open.h>
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#include <ipxe/uri.h>
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#include <ipxe/features.h>
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#include <ipxe/timer.h>
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#include <ipxe/oncrpc.h>
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#include <ipxe/oncrpc_iob.h>
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#include <ipxe/portmap.h>
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/** @file
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*
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* PORTMAPPER protocol.
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*
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*/
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/** PORTMAP GETPORT procedure. */
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#define PORTMAP_GETPORT 3
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/**
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* Send a GETPORT request
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*
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* @v intf Interface to send the request on
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* @v session ONC RPC session
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* @v prog ONC RPC program number
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* @v vers ONC RPC rogram version number
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* @v proto Protocol (TCP or UDP)
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* @ret rc Return status code
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*/
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int portmap_getport ( struct interface *intf, struct oncrpc_session *session,
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uint32_t prog, uint32_t vers, uint32_t proto ) {
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struct oncrpc_field fields[] = {
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ONCRPC_FIELD ( int32, prog ),
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ONCRPC_FIELD ( int32, vers ),
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ONCRPC_FIELD ( int32, proto ),
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ONCRPC_FIELD ( int32, 0 ), /* The port field is only meaningful
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in GETPORT reply */
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ONCRPC_FIELD_END,
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};
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return oncrpc_call ( intf, session, PORTMAP_GETPORT, fields );
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}
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/**
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* Parse a GETPORT reply
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*
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* @v getport_reply A structure where the data will be saved
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* @v reply The ONC RPC reply to get data from
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* @ret rc Return status code
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*/
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int portmap_get_getport_reply ( struct portmap_getport_reply *getport_reply,
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struct oncrpc_reply *reply ) {
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if ( ! getport_reply || ! reply )
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return -EINVAL;
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getport_reply->port = oncrpc_iob_get_int ( reply->data );
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if ( getport_reply == 0 || getport_reply->port >= 65536 )
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return -EINVAL;
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return 0;
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}
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