1 files changed, 0 insertions, 180 deletions
diff --git a/gpxe/src/net/ndp.c b/gpxe/src/net/ndp.c
deleted file mode 100644
index 8bea8b32..00000000
--- a/gpxe/src/net/ndp.c
+++ /dev/null
@@ -1,180 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <byteswap.h>
-#include <errno.h>
-#include <gpxe/if_ether.h>
-#include <gpxe/iobuf.h>
-#include <gpxe/ndp.h>
-#include <gpxe/icmp6.h>
-#include <gpxe/ip6.h>
-#include <gpxe/netdevice.h>
-
-/** @file
- *
- * Neighbour Discovery Protocol
- *
- * This file implements address resolution as specified by the neighbour
- * discovery protocol in RFC2461. This protocol is part of the IPv6 protocol
- * family.
- */
-
-/* A neighbour entry */
-struct ndp_entry {
-	/** Target IP6 address */
-	struct in6_addr in6;
-	/** Link layer protocol */
-	struct ll_protocol *ll_protocol;
-	/** Link-layer address */
-	uint8_t ll_addr[MAX_LL_ADDR_LEN];
-	/** State of the neighbour entry */
-	int state;
-};
-
-/** Number of entries in the neighbour cache table */
-#define NUM_NDP_ENTRIES 4
-
-/** The neighbour cache table */
-static struct ndp_entry ndp_table[NUM_NDP_ENTRIES];
-#define ndp_table_end &ndp_table[NUM_NDP_ENTRIES]
-
-static unsigned int next_new_ndp_entry = 0;
-
-/**
- * Find entry in the neighbour cache
- *
- * @v in6	IP6 address
- */
-static struct ndp_entry *
-ndp_find_entry ( struct in6_addr *in6 ) {
-	struct ndp_entry *ndp;
-
-	for ( ndp = ndp_table ; ndp < ndp_table_end ; ndp++ ) {
-		if ( IP6_EQUAL ( ( *in6 ), ndp->in6 ) && 
-		     ( ndp->state != NDP_STATE_INVALID ) ) {
-			return ndp;
-		}
-	}
-	return NULL;
-}
-
-/**
- * Add NDP entry
- * 
- * @v netdev	Network device
- * @v in6	IP6 address
- * @v ll_addr	Link-layer address
- * @v state	State of the entry - one of the NDP_STATE_XXX values
- */
-static void 
-add_ndp_entry ( struct net_device *netdev, struct in6_addr *in6,
-		void *ll_addr, int state ) {
-	struct ndp_entry *ndp;
-	ndp = &ndp_table[next_new_ndp_entry++ % NUM_NDP_ENTRIES];
-
-	/* Fill up entry */
-	ndp->ll_protocol = netdev->ll_protocol;
-	memcpy ( &ndp->in6, &( *in6 ), sizeof ( *in6 ) );
-	if ( ll_addr ) {
-		memcpy ( ndp->ll_addr, ll_addr, netdev->ll_protocol->ll_addr_len );
-	} else {
-		memset ( ndp->ll_addr, 0, netdev->ll_protocol->ll_addr_len );
-	}
-	ndp->state = state;
-	DBG ( "New neighbour cache entry: IP6 %s => %s %s\n",
-	      inet6_ntoa ( ndp->in6 ), netdev->ll_protocol->name,
-	      netdev->ll_protocol->ntoa ( ndp->ll_addr ) );
-}
-
-/**
- * Resolve the link-layer address
- *
- * @v netdev		Network device
- * @v dest		Destination address
- * @v src		Source address
- * @ret dest_ll_addr	Destination link-layer address or NULL
- * @ret rc		Status
- *
- * This function looks up the neighbour cache for an entry corresponding to the
- * destination address. If it finds a valid entry, it fills up dest_ll_addr and
- * returns 0. Otherwise it sends a neighbour solicitation to the solicited
- * multicast address.
- */
-int ndp_resolve ( struct net_device *netdev, struct in6_addr *dest,
-		  struct in6_addr *src, void *dest_ll_addr ) {
-	struct ll_protocol *ll_protocol = netdev->ll_protocol;
-	struct ndp_entry *ndp;
-	int rc;
-
-	ndp = ndp_find_entry ( dest );
-	/* Check if the entry is valid */
-	if ( ndp && ndp->state == NDP_STATE_REACHABLE ) {
-		DBG ( "Neighbour cache hit: IP6 %s => %s %s\n",
-		      inet6_ntoa ( *dest ), ll_protocol->name,
-		      ll_protocol->ntoa ( ndp->ll_addr ) );
-		memcpy ( dest_ll_addr, ndp->ll_addr, ll_protocol->ll_addr_len );
-		return 0;
-	}
-
-	/* Check if the entry was already created */
-	if ( ndp ) {
-		DBG ( "Awaiting neighbour advertisement\n" );
-		/* For test */
-//		ndp->state = NDP_STATE_REACHABLE;
-//		memcpy ( ndp->ll_addr, netdev->ll_addr, 6 );
-//		assert ( ndp->ll_protocol->ll_addr_len == 6 );
-//		icmp6_test_nadvert ( netdev, dest, ndp->ll_addr );
-//		assert ( ndp->state == NDP_STATE_REACHABLE );
-		/* Take it out till here */
-		return -ENOENT;
-	}
-	DBG ( "Neighbour cache miss: IP6 %s\n", inet6_ntoa ( *dest ) );
-
-	/* Add entry in the neighbour cache */
-	add_ndp_entry ( netdev, dest, NULL, NDP_STATE_INCOMPLETE );
-
-	/* Send neighbour solicitation */
-	if ( ( rc = icmp6_send_solicit ( netdev, src, dest ) ) != 0 ) {
-		return rc;
-	}
-	return -ENOENT;
-}
-
-/**
- * Process neighbour advertisement
- *
- * @v iobuf	I/O buffer
- * @v st_src	Source address
- * @v st_dest	Destination address 
- */
-int ndp_process_advert ( struct io_buffer *iobuf, struct sockaddr_tcpip *st_src __unused,
-			   struct sockaddr_tcpip *st_dest __unused ) {
-	struct neighbour_advert *nadvert = iobuf->data;
-	struct ndp_entry *ndp;
-
-	/* Sanity check */
-	if ( iob_len ( iobuf ) < sizeof ( *nadvert ) ) {
-		DBG ( "Packet too short (%zd bytes)\n", iob_len ( iobuf ) );
-		return -EINVAL;
-	}
-
-	assert ( nadvert->code == 0 );
-	assert ( nadvert->flags & ICMP6_FLAGS_SOLICITED );
-	assert ( nadvert->opt_type == 2 );
-
-	/* Update the neighbour cache, if entry is present */
-	ndp = ndp_find_entry ( &nadvert->target );
-	if ( ndp ) {
-
-	assert ( nadvert->opt_len ==
-			( ( 2 + ndp->ll_protocol->ll_addr_len ) / 8 ) );
-
-		if ( IP6_EQUAL ( ndp->in6, nadvert->target ) ) {
-			memcpy ( ndp->ll_addr, nadvert->opt_ll_addr,
-				 ndp->ll_protocol->ll_addr_len );
-			ndp->state = NDP_STATE_REACHABLE;
-			return 0;
-		}
-	}
-	DBG ( "Unsolicited advertisement (dropping packet)\n" );
-	return 0;
-}