diff options
Diffstat (limited to 'gpxe/src/include/gpxe/tcpip.h')
-rw-r--r-- | gpxe/src/include/gpxe/tcpip.h | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/gpxe/src/include/gpxe/tcpip.h b/gpxe/src/include/gpxe/tcpip.h deleted file mode 100644 index f71d7d6d..00000000 --- a/gpxe/src/include/gpxe/tcpip.h +++ /dev/null @@ -1,128 +0,0 @@ -#ifndef _GPXE_TCPIP_H -#define _GPXE_TCPIP_H - -/** @file - * - * Transport-network layer interface - * - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdint.h> -#include <gpxe/socket.h> -#include <gpxe/in.h> -#include <gpxe/tables.h> - -struct io_buffer; -struct net_device; - -/** Empty checksum value - * - * This is the TCP/IP checksum over a zero-length block of data. - */ -#define TCPIP_EMPTY_CSUM 0xffff - -/** - * TCP/IP socket address - * - * This contains the fields common to socket addresses for all TCP/IP - * address families. - */ -struct sockaddr_tcpip { - /** Socket address family (part of struct @c sockaddr) */ - sa_family_t st_family; - /** TCP/IP port */ - uint16_t st_port; - /** Padding - * - * This ensures that a struct @c sockaddr_tcpip is large - * enough to hold a socket address for any TCP/IP address - * family. - */ - char pad[ sizeof ( struct sockaddr ) - - ( sizeof ( sa_family_t ) + sizeof ( uint16_t ) ) ]; -} __attribute__ (( may_alias )); - -/** - * A transport-layer protocol of the TCP/IP stack (eg. UDP, TCP, etc) - */ -struct tcpip_protocol { - /** Protocol name */ - const char *name; - /** - * Process received packet - * - * @v iobuf I/O buffer - * @v st_src Partially-filled source address - * @v st_dest Partially-filled destination address - * @v pshdr_csum Pseudo-header checksum - * @ret rc Return status code - * - * This method takes ownership of the I/O buffer. - */ - int ( * rx ) ( struct io_buffer *iobuf, struct sockaddr_tcpip *st_src, - struct sockaddr_tcpip *st_dest, uint16_t pshdr_csum ); - /** - * Transport-layer protocol number - * - * This is a constant of the type IP_XXX - */ - uint8_t tcpip_proto; -}; - -/** - * A network-layer protocol of the TCP/IP stack (eg. IPV4, IPv6, etc) - */ -struct tcpip_net_protocol { - /** Protocol name */ - const char *name; - /** Network address family */ - sa_family_t sa_family; - /** - * Transmit packet - * - * @v iobuf I/O buffer - * @v tcpip_protocol Transport-layer protocol - * @v st_src Source address, or NULL to use default - * @v st_dest Destination address - * @v netdev Network device (or NULL to route automatically) - * @v trans_csum Transport-layer checksum to complete, or NULL - * @ret rc Return status code - * - * This function takes ownership of the I/O buffer. - */ - int ( * tx ) ( struct io_buffer *iobuf, - struct tcpip_protocol *tcpip_protocol, - struct sockaddr_tcpip *st_src, - struct sockaddr_tcpip *st_dest, - struct net_device *netdev, - uint16_t *trans_csum ); -}; - -/** TCP/IP transport-layer protocol table */ -#define TCPIP_PROTOCOLS __table ( struct tcpip_protocol, "tcpip_protocols" ) - -/** Declare a TCP/IP transport-layer protocol */ -#define __tcpip_protocol __table_entry ( TCPIP_PROTOCOLS, 01 ) - -/** TCP/IP network-layer protocol table */ -#define TCPIP_NET_PROTOCOLS \ - __table ( struct tcpip_net_protocol, "tcpip_net_protocols" ) - -/** Declare a TCP/IP network-layer protocol */ -#define __tcpip_net_protocol __table_entry ( TCPIP_NET_PROTOCOLS, 01 ) - -extern int tcpip_rx ( struct io_buffer *iobuf, uint8_t tcpip_proto, - struct sockaddr_tcpip *st_src, - struct sockaddr_tcpip *st_dest, uint16_t pshdr_csum ); -extern int tcpip_tx ( struct io_buffer *iobuf, struct tcpip_protocol *tcpip, - struct sockaddr_tcpip *st_src, - struct sockaddr_tcpip *st_dest, - struct net_device *netdev, - uint16_t *trans_csum ); -extern uint16_t tcpip_continue_chksum ( uint16_t partial, - const void *data, size_t len ); -extern uint16_t tcpip_chksum ( const void *data, size_t len ); - -#endif /* _GPXE_TCPIP_H */ |