Helper functions for TCP/IP stack. More...

#include "core/net.h"
#include "core/ethernet.h"
#include "core/ip.h"

Data Structures
struct	NetLinkChangeCallbackEntry
	Link change callback entry. More...

struct	NetTimerCallbackEntry
	Timer callback entry. More...

struct	NetTimestamp
	Timestamp. More...

struct	_NetTxAncillary
	Additional options passed to the stack (TX path) More...

struct	_NetRxAncillary
	Additional options passed to the stack (RX path) More...

struct	NetTimer
	Timer. More...

struct	NetRandState
	Pseudo-random number generator state. More...

Macros
#define	NetTxAncillary struct _NetTxAncillary

#define	NetRxAncillary struct _NetRxAncillary

#define	NET_RAND_GET_BIT(s, n) ((s[(n - 1) / 8] >> ((n - 1) % 8)) & 1)

#define	NET_RAND_STATE_SET_BIT(s, n, v)

Typedefs
typedef void(*	NetLinkChangeCallback) (NetInterface interface, bool_t linkState, void param)
	Link change callback. More...

typedef void(*	NetTimerCallback) (void *param)
	Timer callback. More...

Functions
error_t	netAttachLinkChangeCallback (NetInterface interface, NetLinkChangeCallback callback, void param)
	Register link change callback. More...

error_t	netDetachLinkChangeCallback (NetInterface interface, NetLinkChangeCallback callback, void param)
	Unregister link change callback. More...

void	netProcessLinkChange (NetInterface *interface)
	Process link state change event. More...

error_t	netAttachTimerCallback (systime_t period, NetTimerCallback callback, void *param)
	Register timer callback. More...

error_t	netDetachTimerCallback (NetTimerCallback callback, void *param)
	Unregister timer callback. More...

void	netTick (void)
	Manage TCP/IP timers. More...

void	netStartTimer (NetTimer *timer, systime_t interval)
	Start timer. More...

void	netStopTimer (NetTimer *timer)
	Stop timer. More...

bool_t	netTimerRunning (NetTimer *timer)
	Check whether the timer is running. More...

bool_t	netTimerExpired (NetTimer *timer)
	Check whether the timer has expired. More...

systime_t	netGetRemainingTime (NetTimer *timer)
	Get the remaining value of the running timer. More...

void	netInitRand (void)
	Initialize random number generator. More...

uint32_t	netGenerateRand (void)
	Generate a random 32-bit value. More...

uint32_t	netGenerateRandRange (uint32_t min, uint32_t max)
	Generate a random value in the specified range. More...

void	netGenerateRandData (uint8_t *data, size_t length)
	Get a string of random data. More...

uint32_t	netGenerateRandBit (NetRandState *state)
	Generate one random bit. More...

Variables
const NetTxAncillary	NET_DEFAULT_TX_ANCILLARY

const NetRxAncillary	NET_DEFAULT_RX_ANCILLARY

Detailed Description

Helper functions for TCP/IP stack.

License

SPDX-License-Identifier: GPL-2.0-or-later

This file is part of CycloneTCP Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file net_misc.h.

Macro Definition Documentation

◆ NET_RAND_GET_BIT

#define NET_RAND_GET_BIT	(	s,
		n
	)	((s[(n - 1) / 8] >> ((n - 1) % 8)) & 1)

Definition at line 48 of file net_misc.h.

◆ NET_RAND_STATE_SET_BIT

#define NET_RAND_STATE_SET_BIT	(	s,
		n,
		v
	)

Value:

s[(n - 1) / 8] = \

(s[(n - 1) / 8] & ~(1 << ((n - 1) % 8))) | (v) << ((n - 1) % 8)

Definition at line 51 of file net_misc.h.

◆ NetRxAncillary

#define NetRxAncillary struct _NetRxAncillary

Definition at line 40 of file net_misc.h.

◆ NetTxAncillary

#define NetTxAncillary struct _NetTxAncillary

Definition at line 36 of file net_misc.h.

Typedef Documentation

◆ NetLinkChangeCallback

typedef void(* NetLinkChangeCallback) (NetInterface *interface, bool_t linkState, void *param)

Link change callback.

Definition at line 64 of file net_misc.h.

◆ NetTimerCallback

typedef void(* NetTimerCallback) (void *param)

Timer callback.

Definition at line 84 of file net_misc.h.

Function Documentation

◆ netAttachLinkChangeCallback()

error_t netAttachLinkChangeCallback	(	NetInterface *	interface,
		NetLinkChangeCallback	callback,
		void *	param
	)

Register link change callback.

Parameters

[in]	interface	Underlying network interface
[in]	callback	Callback function to be called when the link state changed
[in]	param	Callback function parameter

Returns: Error code

Definition at line 130 of file net_misc.c.

◆ netAttachTimerCallback()

error_t netAttachTimerCallback	(	systime_t	period,
		NetTimerCallback	callback,
		void *	param
	)

Register timer callback.

Parameters

[in]	period	Timer reload value, in milliseconds
[in]	callback	Callback function to be called when the timer expires
[in]	param	Callback function parameter

Returns: Error code

Definition at line 347 of file net_misc.c.

◆ netDetachLinkChangeCallback()

error_t netDetachLinkChangeCallback	(	NetInterface *	interface,
		NetLinkChangeCallback	callback,
		void *	param
	)

Unregister link change callback.

Parameters

[in]	interface	Underlying network interface
[in]	callback	Callback function to be unregistered
[in]	param	Callback function parameter

Returns: Error code

Definition at line 168 of file net_misc.c.

◆ netDetachTimerCallback()

error_t netDetachTimerCallback	(	NetTimerCallback	callback,
		void *	param
	)

Unregister timer callback.

Parameters

[in]	callback	Callback function to be unregistered
[in]	param	Callback function parameter

Returns: Error code

Definition at line 385 of file net_misc.c.

◆ netGenerateRand()

uint32_t netGenerateRand ( void )

Generate a random 32-bit value.

Returns: Random value

Definition at line 922 of file net_misc.c.

◆ netGenerateRandBit()

uint32_t netGenerateRandBit ( NetRandState * state )

Generate one random bit.

Parameters

[in] state Pointer to the PRNG state

Returns: Key stream bit

Definition at line 1003 of file net_misc.c.

◆ netGenerateRandData()

void netGenerateRandData	(	uint8_t *	data,
		size_t	length
	)

Get a string of random data.

Parameters

[out]	data	Buffer where to store random data
[in]	length	Number of random bytes to generate

Definition at line 975 of file net_misc.c.

◆ netGenerateRandRange()

uint32_t netGenerateRandRange	(	uint32_t	min,
		uint32_t	max
	)

Generate a random value in the specified range.

Parameters

[in]	min	Lower bound
[in]	max	Upper bound

Returns: Random value in the specified range

Definition at line 948 of file net_misc.c.

◆ netGetRemainingTime()

systime_t netGetRemainingTime ( NetTimer * timer )

Get the remaining value of the running timer.

Parameters

[in] timer Pointer to the timer structure

Returns: Remaining time

Definition at line 837 of file net_misc.c.

◆ netInitRand()

void netInitRand ( void )

Initialize random number generator.

Definition at line 866 of file net_misc.c.

◆ netProcessLinkChange()

void netProcessLinkChange ( NetInterface * interface )

Process link state change event.

Parameters

[in] interface Underlying network interface

Definition at line 201 of file net_misc.c.

◆ netStartTimer()

void netStartTimer	(	NetTimer *	timer,
		systime_t	interval
	)

Start timer.

Parameters

[in]	timer	Pointer to the timer structure
[in]	interval	Time interval

Definition at line 766 of file net_misc.c.

◆ netStopTimer()

void netStopTimer ( NetTimer * timer )

Stop timer.

Parameters

[in] timer Pointer to the timer structure

Definition at line 780 of file net_misc.c.

◆ netTick()

void netTick ( void )

Manage TCP/IP timers.

Definition at line 416 of file net_misc.c.

◆ netTimerExpired()

bool_t netTimerExpired ( NetTimer * timer )

Check whether the timer has expired.

Parameters

[in] timer Pointer to the timer structure

Returns: TRUE if the timer has expired, else FALSE

Definition at line 806 of file net_misc.c.

◆ netTimerRunning()

bool_t netTimerRunning ( NetTimer * timer )

Check whether the timer is running.

Parameters

[in] timer Pointer to the timer structure

Returns: TRUE if the timer is running, else FALSE

Definition at line 793 of file net_misc.c.

Variable Documentation

◆ NET_DEFAULT_RX_ANCILLARY

const NetRxAncillary NET_DEFAULT_RX_ANCILLARY

extern

Definition at line 104 of file net_misc.c.

◆ NET_DEFAULT_TX_ANCILLARY

const NetTxAncillary NET_DEFAULT_TX_ANCILLARY

extern

Definition at line 71 of file net_misc.c.

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ NET_RAND_GET_BIT

◆ NET_RAND_STATE_SET_BIT

◆ NetRxAncillary

◆ NetTxAncillary

Typedef Documentation

◆ NetLinkChangeCallback

◆ NetTimerCallback

Function Documentation

◆ netAttachLinkChangeCallback()

◆ netAttachTimerCallback()

◆ netDetachLinkChangeCallback()

◆ netDetachTimerCallback()

◆ netGenerateRand()

◆ netGenerateRandBit()

◆ netGenerateRandData()

◆ netGenerateRandRange()

◆ netGetRemainingTime()

◆ netInitRand()

◆ netProcessLinkChange()

◆ netStartTimer()

◆ netStopTimer()

◆ netTick()

◆ netTimerExpired()

◆ netTimerRunning()

Variable Documentation

◆ NET_DEFAULT_RX_ANCILLARY

◆ NET_DEFAULT_TX_ANCILLARY