eth.c File Reference

Ethernet module implementation. More...

#include <async.h>
#include <malloc.h>
#include <mem.h>
#include <stdio.h>
#include <byteorder.h>
#include <str.h>
#include <errno.h>
#include <ipc/nil.h>
#include <ipc/net.h>
#include <ipc/services.h>
#include <net/modules.h>
#include <net_checksum.h>
#include <ethernet_lsap.h>
#include <ethernet_protocols.h>
#include <protocol_map.h>
#include <net/device.h>
#include <netif_remote.h>
#include <net_interface.h>
#include <il_remote.h>
#include <adt/measured_strings.h>
#include <packet_client.h>
#include <packet_remote.h>
#include <nil_skel.h>
#include "eth.h"

Go to the source code of this file.

Defines
#define	ETH_8023_2_LSAP   (2 << ETH_MODE_SHIFT)
	802.3 + 802.2 + LSAP mode flag.
#define	ETH_8023_2_SNAP   (3 << ETH_MODE_SHIFT)
	802.3 + 802.2 + LSAP + SNAP mode flag.
#define	ETH_DIX   (1 << ETH_MODE_SHIFT)
	DIX Ethernet mode flag.
#define	ETH_DUMMY   (1 << ETH_DUMMY_SHIFT)
	Dummy device flag.
#define	ETH_DUMMY_SHIFT   0
	Dummy flag shift value.
#define	ETH_MAX_CONTENT   1500u
	Maximum packet content length.
#define	ETH_MAX_TAGGED_CONTENT(flags)
	Maximum tagged packet content length.
#define	ETH_MIN_CONTENT   46u
	Minimum packet content length.
#define	ETH_MIN_TAGGED_CONTENT(flags)
	Minimum tagged packet content length.
#define	ETH_MODE_MASK   (3 << ETH_MODE_SHIFT)
	Device mode flags.
#define	ETH_MODE_SHIFT   1
	Mode flag shift value.
#define	ETH_PREFIX
	Reserved packet prefix length.
#define	ETH_SUFFIX   (sizeof(eth_fcs_t))
	Reserved packet suffix length.
#define	IS_8023_2_LSAP(flags)   (((flags) & ETH_MODE_MASK) == ETH_8023_2_LSAP)
	Return whether the 802.3 + 802.2 + LSAP mode flag is set.
#define	IS_8023_2_SNAP(flags)   (((flags) & ETH_MODE_MASK) == ETH_8023_2_SNAP)
	Return whether the 802.3 + 802.2 + LSAP + SNAP mode flag is set.
#define	IS_DIX(flags)   (((flags) & ETH_MODE_MASK) == ETH_DIX)
	Return whether the DIX Ethernet mode flag is set.
#define	IS_DUMMY(flags)   ((flags) & ETH_DUMMY)
	Returns the dummy flag.
#define	NAME   "eth"
	The module name.
Typedefs
typedef enum eth_addr_type	eth_addr_type_t
	Type definition of the ethernet address type.
Enumerations
enum	eth_addr_type { ETH_LOCAL_ADDR, ETH_BROADCAST_ADDR }
	Ethernet address type. More...
Functions
static int	eth_addr_message (device_id_t device_id, eth_addr_type_t type, measured_string_t **address)
	Returns the device hardware address.
static int	eth_device_message (device_id_t device_id, services_t service, size_t mtu)
	Registers new device or updates the MTU of an existing one.
static int	eth_packet_space_message (device_id_t device_id, size_t *addr_len, size_t *prefix, size_t *content, size_t *suffix)
	Returns the device packet dimensions for sending.
static int	eth_prepare_packet (int flags, packet_t *packet, uint8_t *src_addr, int ethertype, size_t mtu)
	Prepares the packet for sending.
static eth_proto_t *	eth_process_packet (int flags, packet_t *packet)
	Processes the received packet and chooses the target registered module.
static void	eth_receiver (ipc_callid_t iid, ipc_call_t *icall)
	Processes IPC messages from the registered device driver modules in an infinite loop.
static int	eth_register_message (services_t service, int phone)
	Registers receiving module service.
static int	eth_send_message (device_id_t device_id, packet_t *packet, services_t sender)
	Sends the packet queue.
int	main (int argc, char *argv[])
	Main entry point.
int	nil_device_state_msg_local (int nil_phone, device_id_t device_id, int state)
	Notify the network interface layer about the device state change.
int	nil_initialize (int net_phone)
	Module initialization.
int	nil_module_message (ipc_callid_t callid, ipc_call_t *call, ipc_call_t *answer, size_t *answer_count)
	Message processing function.
int	nil_received_msg_local (int nil_phone, device_id_t device_id, packet_t *packet, services_t target)
	Pass the packet queue to the network interface layer.
Variables
eth_globals_t	eth_globals
	Ethernet module global data.

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Detailed Description

Ethernet module implementation.

See also:

eth.h

Definition in file eth.c.

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