Removing net/interface.c and include/gpxe/interface.h

src/include/gpxe/interface.h

@@ -1,90 +0,0 @@
-#ifndef _GPXE_INTERFACE_H
-#define _GPXE_INTERFACE_H
-
-/** @file
- *
- * Transport-network layer interface
- *
- */
-
-#include <stdint.h>
-#include <gpxe/in.h>
-#include <gpxe/tables.h>
-
-struct pk_buff;
-struct net_protocol;
-struct trans_protocol;
-struct tcpip_net_protocol;
-
-/** 
- * A transport-layer protocol
- */
-struct trans_protocol {
-	/** Protocol name */
-	const char *name;
-       	/**
-         * Process received packet
-         *
-         * @v pkb       Packet buffer
-         * @v netdev    Network device
-         * @v ll_source Link-layer source address
-         *
-         * This method takes ownership of the packet buffer.
-         */
-        void ( * rx ) ( struct pk_buff *pkb, struct in_addr *src_net_addr, struct in_addr *dest_net_addr );
-        /** 
-	 * Transport-layer protocol number
-	 *
-	 * This is a constant of the type IP_XXX
-         */
-        uint8_t trans_proto;
-};
-
-/**
- * A TCPIP supporting protocol
- */
-struct tcpip_net_protocol {
-	/** Network protocol */
-	struct net_protocol *net_protocol;
-	/** Network address family */
-	sa_family_t sa_family;
-	/** Complete transport-layer checksum calculation
-	 *
-	 * @v pkb		Packet buffer
-	 * @v trans_proto	Transport-layer protocol number
-	 *
-	 * This function expects a network-layer datagram in its packet with the protocol field in the
-	 * IP header to be filled up. It constructs a psuedo-header using the information provided in
-	 * the IP header and computes the checksum over the pseudo-header. The checksum offset in the
-	 * transport layer header can be determined without the need of an offset value as
-	 * 
-	 * void *csum_offset = pkb->data + NET_HLEN + csum_offset ( trans_proto );
-	 * 
-	 * where,
-	 * csum_offset ( IP_TCP ) = 16
-	 * csum_offset ( IP_UDP ) = 6
-	 */
-	void ( * tx_csum ) ( struct pk_buff *pkb );
-};
-
-/**
- * Register a transport-layer protocol
- *
- * @v protocol          Transport-layer protocol
- */
-#define TRANS_PROTOCOL( protocol ) \
-        struct trans_protocol protocol __table ( trans_protocols, 01 )
-
-#define TCPIP_NET_PROTOCOL( protocol ) \
-        struct tcpip_net_protocol protocol __table ( tcpip_net_protocols, 01 )
-
-extern void trans_rx ( struct pk_buff *pkb, uint8_t trans_proto, struct in_addr *src, struct in_addr *dest );
-extern int trans_tx ( struct pk_buff *pkb, uint8_t trans_proto, struct sockaddr *dest );
-
-extern uint16_t calc_chksum ( void *data, size_t len );
-
-/** Do we need these functions? -Nikhil, 24-6-06 */
-extern struct trans_protocol * find_trans_protocol ( uint8_t trans_proto );
-extern struct tcpip_net_protocol * find_tcpip_net_protocol ( sa_family_t sa_family );
-
-#endif /* _GPXE_INTERFACE_H */

src/net/interface.c

@@ -1,132 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <errno.h>
-#include <malloc.h>
-#include <byteswap.h>
-#include <gpxe/in.h>
-#include <gpxe/ip.h>
-#include <gpxe/pkbuff.h>
-#include <gpxe/tables.h>
-#include <gpxe/netdevice.h>
-#include <gpxe/interface.h>
-
-/** @file
- *
- * Transport-network layer interface
- *
- * This file contains functions and utilities for the transport-network layer interface
- */
-
-/** Registered protocols that support TCPIP */
-static struct tcpip_net_protocol tcpip_net_protocols[0] __table_start ( tcpip_net_protocols );
-static struct tcpip_net_protocol tcpip_net_protocols_end[0] __table_end ( tcpip_net_protocols );
-
-struct trans_protocol;
-
-/** Registered transport-layer protocols */
-static struct trans_protocol trans_protocols[0] __table_start ( trans_protocols );
-static struct trans_protocol trans_protocols_end[0] __table_end ( trans_protocols );
-
-/** Identify TCPIP net protocol
- *
- * @v sa_family         Network address family
- * @ret tcpip           Protocol supporting TCPIP, or NULL
- */
-static struct tcpip_net_protocol * tcpip_find_protocol ( sa_family_t sa_family ) {
-        struct tcpip_net_protocol *tcpip;
-
-        for ( tcpip = tcpip_net_protocols; tcpip < tcpip_net_protocols_end; tcpip++ ) {
-                if ( tcpip->sa_family == sa_family ) {
-                        return tcpip;
-                }
-        }
-        return NULL;
-}
-
-/** Identify transport-layer protocol
- *
- * @v trans_proto	Transport-layer protocol number, IP_XXX
- * @ret trans_protocol	Transport-layer protocol, or NULL
- */
-struct trans_protocol* find_trans_protocol ( uint8_t trans_proto ) {
-        struct trans_protocol *trans_protocol;
-
-        for ( trans_protocol = trans_protocols; trans_protocol <= trans_protocols_end; ++trans_protocol ) {
-                if ( trans_protocol->trans_proto == trans_proto ) {
-                        return trans_protocol;
-                }
-        }
-        return NULL;
-}
-
-/** Process a received packet
- *
- * @v pkb		Packet buffer
- * @v trans_proto	Transport-layer protocol number
- * @v src		Source network-layer address
- * @v dest		Destination network-layer address
- *
- * This function expects a transport-layer segment from the network-layer
- */
-void trans_rx ( struct pk_buff *pkb, uint8_t trans_proto, struct in_addr *src, struct in_addr *dest ) {
-        struct trans_protocol *trans_protocol;
-
-        /* Identify the transport layer protocol */
-        for ( trans_protocol = trans_protocols; trans_protocol <= trans_protocols_end; ++trans_protocol ) {
-                if ( trans_protocol->trans_proto == trans_proto ) {
-			DBG ( "Packet sent to %s module", trans_protocol->name );
-                        trans_protocol->rx ( pkb, src, dest );
-                }
-        }
-}
-
-/** Transmit a transport-layer segment
- *
- * @v pkb		Packet buffer
- * @v trans_proto	Transport-layer protocol
- * @v sock		Destination socket address
- * @ret			Status
- */
-int trans_tx ( struct pk_buff *pkb, uint8_t trans_proto, struct sockaddr *sock ) {
-
-        /* Identify the network layer protocol and send it using xxx_tx() */
-        switch ( sock->sa_family ) {
-        case AF_INET: /* IPv4 network family */
-                return ipv4_tx ( pkb, trans_proto, &sock->sin.sin_addr );
-        case AF_INET6: /* IPv6 network family */
-                return ipv6_tx ( pkb, trans_proto, &sock->sin6.sin6_addr );
-        default:
-                DBG ( "Network family %d not supported", sock->sa_family );
-        }
-        return -EPROTONOSUPPORT;
-}
-
-/**
- * Calculate internet checksum
- *
- * @v data      Pointer to the data
- * @v len       Length of data to be checksummed
- * @ret chksum  16 bit internet checksum
- *
- * This function calculates the internet checksum (refer RFC1071) for len bytes beginning at the location data
- */
-uint16_t calc_chksum ( void *data, size_t len ) {
-        register long sum = 0;
-        uint16_t checksum;
-        unsigned short *temp;
-        while ( len > 1 ) {
-                temp = (unsigned short*) data++;
-                sum += *temp;
-                len -= 2;
-        }
-        if ( len > 0 ) {
-                sum += *(unsigned char *)data;
-        }
-        while ( sum >> 16 ) {
-                sum = ( sum & 0xffff ) + ( sum >> 16 );
-        }
-        checksum = ~sum;
-        return checksum;
-}
-
-