ieee8023

Files
file	ieee8023.h

Functions
moep_dev_t	moep_dev_ieee8023_open (const char *devname, u8 *addr, const struct in_addr *ip, int prefixlen, int mtu)
	open an ieee8023 device More...
moep_dev_t	moep_dev_ieee8023_tap_open (u8 *addr, const struct in_addr *ip, int prefixlen, int mtu)
	open an ieee8023 tap device More...
moep_dev_t	moep_dev_ieee8023_unix_open (const char *devname, int mtu)
	open an ieee8023 unix device More...
moep_frame_t	moep_frame_ieee8023_create (void)
	create an ieee8023 frame More...
moep_frame_t	moep_frame_ieee8023_tap_create (void)
	create an ieee8023 tap frame More...
moep_frame_t	moep_frame_ieee8023_unix_create (void)
	create an ieee8023 unix frame More...
struct ether_header *	moep_frame_ieee8023_hdr (moep_frame_t frame)
	ieee8023 header More...

Detailed Description

Function Documentation

moep_dev_t moep_dev_ieee8023_open	(	const char *	devname,
		u8 *	addr,
		const struct in_addr *	ip,
		int	prefixlen,
		int	mtu
	)

open an ieee8023 device

The function moep_dev_ieee8023_open() is used to open an ieee8023 device.

Parameters

devname,the	device name, e.g. eth0
addr	the hardware address of the device; This can be NULL to be automatically set.
ip	the IP address of the device; This can be NULL to set no IP address.
prefixlen	the length of the IP prefix.
mtu	the MTU of the device; This includes all headers.

Returns

This function returns a moep device.

Return values

NULL	on error, errno is set appropriately.

Errors

These are some standard errors generated and returned by this function. Additional errors may be generated and returned from the underlying system calls.

EINVAL	Invalid argument
EMFILE	Too many open files; Some filedescriptors are too big for select.
ENOMEM	Not enough memory available

moep_dev_t moep_dev_ieee8023_tap_open	(	u8 *	addr,
		const struct in_addr *	ip,
		int	prefixlen,
		int	mtu
	)

open an ieee8023 tap device

The function moep_dev_ieee8023_tap_open() is used to open an ieee8023 tap device.

Parameters

addr	the hardware address of the device; This can be NULL to be automatically set.
ip	the IP address of the device; This can be NULL to set no IP address.
prefixlen	the length of the IP prefix.
mtu	the MTU of the device; This includes all headers.

Returns

This function returns a moep device.

Return values

NULL	on error, errno is set appropriately.

Errors

These are some standard errors generated and returned by this function. Additional errors may be generated and returned from the underlying system calls.

EINVAL	Invalid argument
EMFILE	Too many open files; Some filedescriptors are too big for select.
ENOMEM	Not enough memory available

moep_dev_t moep_dev_ieee8023_unix_open	(	const char *	devname,
		int	mtu
	)

open an ieee8023 unix device

The function moep_dev_ieee8023_unix_open() is used to open an ieee8023 unix device.

Parameters

devname	the device name; This must be the path of a unix domain socket.
mtu	the MTU of the device; This includes all headers.

Returns

This function returns a moep device.

Return values

NULL	on error, errno is set appropriately.

Errors

These are some standard errors generated and returned by this function. Additional errors may be generated and returned from the underlying system calls.

EINVAL	Invalid argument
EMFILE	Too many open files; Some filedescriptors are too big for select.
ENOMEM	Not enough memory available

moep_frame_t moep_frame_ieee8023_create

(

void

)

create an ieee8023 frame

The function moep_frame_ieee8023_create() is used to create an ieee8023 frame.

Returns

This function returns a moep frame.

Return values

NULL	on error, errno is set appropriately.

Errors

The error values are the same as for moep_frame_create().

moep_frame_t moep_frame_ieee8023_tap_create

(

void

)

create an ieee8023 tap frame

The function moep_frame_ieee8023_tap_create() is used to create an ieee8023 tap frame.

Returns

This function returns a moep frame.

Return values

NULL	on error, errno is set appropriately.

Errors

The error values are the same as for moep_frame_create().

moep_frame_t moep_frame_ieee8023_unix_create

(

void

)

create an ieee8023 unix frame

The function moep_frame_ieee8023_unix_create() is used to create an ieee8023 unix frame.

Returns

This function returns a moep frame.

Return values

NULL	on error, errno is set appropriately.

Errors

The error values are the same as for moep_frame_create().

struct ether_header* moep_frame_ieee8023_hdr

(

moep_frame_t

frame

)

ieee8023 header

The function moep_frame_ieee8023_hdr() is used to get the ieee8023 header of a frame.

Parameters

frame

the frame

Returns

This function returns the ieee8023 header.

Return values

NULL	on error, errno is set appropriately.

Errors

EACCES	The frame is not an ieee8023 frame.
ENOMEM	Not enough memory available.