8406115834
Access to the gpxe.org and etherboot.org domains and associated resources has been revoked by the registrant of the domain. Work around this problem by renaming project from gPXE to iPXE, and updating URLs to match. Also update README, LOG and COPYRIGHTS to remove obsolete information. Signed-off-by: Michael Brown <mcb30@ipxe.org>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
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* Copyright (c) 2009 Joshua Oreman <oremanj@rwcr.net>.
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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/** @file
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*
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* 802.1X Extensible Authentication Protocol over LANs demultiplexer
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*
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*/
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#include <ipxe/netdevice.h>
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#include <ipxe/iobuf.h>
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#include <ipxe/if_ether.h>
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#include <ipxe/eapol.h>
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#include <errno.h>
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#include <byteswap.h>
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/**
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* Receive EAPOL network-layer packet
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*
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* @v iob I/O buffer
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* @v netdev Network device
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* @v ll_source Link-layer source address
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*
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* This function takes ownership of the I/O buffer passed to it.
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*/
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static int eapol_rx ( struct io_buffer *iob, struct net_device *netdev,
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const void *ll_source )
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{
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struct eapol_frame *eapol = iob->data;
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struct eapol_handler *handler;
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if ( iob_len ( iob ) < EAPOL_HDR_LEN ) {
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free_iob ( iob );
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return -EINVAL;
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}
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for_each_table_entry ( handler, EAPOL_HANDLERS ) {
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if ( handler->type == eapol->type ) {
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iob_pull ( iob, EAPOL_HDR_LEN );
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return handler->rx ( iob, netdev, ll_source );
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}
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}
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free_iob ( iob );
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return -( ENOTSUP | ( ( eapol->type & 0x1f ) << 8 ) );
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}
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/**
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* Transcribe EAPOL network-layer address
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*
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* @v net_addr Network-layer address
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* @ret str String representation of network-layer address
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*
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* EAPOL doesn't have network-layer addresses, so we just return the
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* string @c "<EAPOL>".
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*/
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static const char * eapol_ntoa ( const void *net_addr __unused )
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{
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return "<EAPOL>";
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}
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/** EAPOL network protocol */
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struct net_protocol eapol_protocol __net_protocol = {
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.name = "EAPOL",
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.rx = eapol_rx,
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.ntoa = eapol_ntoa,
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.net_proto = htons ( ETH_P_EAPOL ),
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};
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