Michael Brown
1266d7902b
Intel's C compiler (icc) chokes on the zero-length arrays that we currently use as part of the mechanism for accessing linker table entries. Abstract away the zero-length arrays, to make a port to icc easier. Introduce macros such as for_each_table_entry() to simplify the common case of iterating over all entries in a linker table. Represent table names as #defined string constants rather than unquoted literals; this avoids visual confusion between table names and C variable or type names, and also allows us to force a compilation error in the event of incorrect table names.
45 lines
967 B
C
45 lines
967 B
C
#ifndef _GPXE_ARP_H
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#define _GPXE_ARP_H
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/** @file
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*
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* Address Resolution Protocol
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*
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*/
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#include <gpxe/tables.h>
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struct net_device;
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struct net_protocol;
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/** A network-layer protocol that relies upon ARP */
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struct arp_net_protocol {
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/** Network-layer protocol */
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struct net_protocol *net_protocol;
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/** Check existence of address
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*
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* @v netdev Network device
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* @v net_addr Network-layer address
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* @ret rc Return status code
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*/
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int ( * check ) ( struct net_device *netdev,
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const void *net_addr );
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};
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/** ARP protocol table */
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#define ARP_NET_PROTOCOLS "arp_net_protocols"
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/** Declare an ARP protocol */
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#define __arp_net_protocol \
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__table ( struct arp_net_protocol, ARP_NET_PROTOCOLS, 01 )
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extern struct net_protocol arp_protocol;
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extern int arp_resolve ( struct net_device *netdev,
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struct net_protocol *net_protocol,
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const void *dest_net_addr,
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const void *source_net_addr,
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void *dest_ll_addr );
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#endif /* _GPXE_ARP_H */
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