Helper functions for DHCPv6 client. More...

#include "core/net.h"
#include "ipv6/ipv6.h"
#include "ipv6/ipv6_misc.h"
#include "ipv6/ndp.h"
#include "dhcpv6/dhcpv6_client.h"
#include "dhcpv6/dhcpv6_client_fsm.h"
#include "dhcpv6/dhcpv6_client_misc.h"
#include "dhcpv6/dhcpv6_common.h"
#include "dhcpv6/dhcpv6_debug.h"
#include "dns/dns_common.h"
#include "date_time.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL DHCPV6_TRACE_LEVEL

Functions
void	dhcpv6ClientTick (Dhcpv6ClientContext *context)
	DHCPv6 client timer handler. More...

void	dhcpv6ClientLinkChangeEvent (Dhcpv6ClientContext *context)
	Callback function for link change event. More...

error_t	dhcpv6ClientSendMessage (Dhcpv6ClientContext *context, Dhcpv6MessageType type)
	Send Solicit message. More...

void	dhcpv6ClientProcessMessage (NetInterface interface, const IpPseudoHeader pseudoHeader, const UdpHeader udpHeader, const NetBuffer buffer, size_t offset, const NetRxAncillary ancillary, void param)
	Process incoming DHCPv6 message. More...

void	dhcpv6ClientParseAdvertise (Dhcpv6ClientContext context, const Dhcpv6Message message, size_t length)
	Parse Advertise message. More...

void	dhcpv6ClientParseReply (Dhcpv6ClientContext context, const Dhcpv6Message message, size_t length)
	Parse Reply message. More...

error_t	dhcpv6ClientParseIaNaOption (Dhcpv6ClientContext context, const Dhcpv6Option option)
	Parse IA_NA option. More...

error_t	dhcpv6ClientParseIaAddrOption (Dhcpv6ClientContext context, const Dhcpv6Option option)
	Parse IA Address option. More...

void	dhcpv6ClientAddAddr (Dhcpv6ClientContext context, const Ipv6Addr addr, uint32_t validLifetime, uint32_t preferredLifetime)
	Add an IPv6 address to the IA. More...

void	dhcpv6ClientRemoveAddr (Dhcpv6ClientContext context, const Ipv6Addr addr)
	Remove an IPv6 address from the IA. More...

void	dhcpv6ClientFlushAddrList (Dhcpv6ClientContext *context)
	Flush the list of IPv6 addresses from the IA. More...

error_t	dhcpv6ClientGenerateDuid (Dhcpv6ClientContext *context)
	Generate client's DUID. More...

error_t	dhcpv6ClientGenerateLinkLocalAddr (Dhcpv6ClientContext *context)
	Generate a link-local address. More...

bool_t	dhcpv6ClientCheckServerId (Dhcpv6ClientContext context, Dhcpv6Option serverIdOption)
	Check the Server Identifier option. More...

void	dhcpv6ClientCheckTimeout (Dhcpv6ClientContext *context)
	Manage DHCPv6 configuration timeout. More...

uint16_t	dhcpv6ClientComputeElapsedTime (Dhcpv6ClientContext *context)
	Compute the time elapsed since the client sent the first message. More...

void	dhcpv6ClientChangeState (Dhcpv6ClientContext *context, Dhcpv6State newState, systime_t delay)
	Update DHCPv6 FSM state. More...

void	dhcpv6ClientDumpConfig (Dhcpv6ClientContext *context)
	Dump DHCPv6 configuration for debugging purpose. More...

Variables
systime_t	dhcpv6ClientTickCounter

Detailed Description

Helper functions for DHCPv6 client.

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 dhcpv6_client_misc.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL DHCPV6_TRACE_LEVEL

Definition at line 32 of file dhcpv6_client_misc.c.

Function Documentation

◆ dhcpv6ClientAddAddr()

void dhcpv6ClientAddAddr	(	Dhcpv6ClientContext *	context,
		const Ipv6Addr *	addr,
		uint32_t	validLifetime,
		uint32_t	preferredLifetime
	)

Add an IPv6 address to the IA.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	addr	IPv6 address to be added
[in]	validLifetime	Valid lifetime, in seconds
[in]	preferredLifetime	Preferred lifetime, in seconds

Definition at line 1250 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientChangeState()

void dhcpv6ClientChangeState	(	Dhcpv6ClientContext *	context,
		Dhcpv6State	newState,
		systime_t	delay
	)

Update DHCPv6 FSM state.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	newState	New DHCPv6 state to switch to
[in]	delay	Initial delay

Definition at line 1575 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientCheckServerId()

bool_t dhcpv6ClientCheckServerId	(	Dhcpv6ClientContext *	context,
		Dhcpv6Option *	serverIdOption
	)

Check the Server Identifier option.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	serverIdOption	Pointer to the Server Identifier option

Returns: TRUE if the option matches the server's DUID, else FALSE

Definition at line 1475 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientCheckTimeout()

void dhcpv6ClientCheckTimeout ( Dhcpv6ClientContext * context )

Manage DHCPv6 configuration timeout.

Parameters

[in] context Pointer to the DHCPv6 client context

Definition at line 1501 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientComputeElapsedTime()

uint16_t dhcpv6ClientComputeElapsedTime ( Dhcpv6ClientContext * context )

Compute the time elapsed since the client sent the first message.

Parameters

[in] context Pointer to the DHCPv6 client context

Returns: The elapsed time expressed in hundredths of a second

Definition at line 1542 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientDumpConfig()

void dhcpv6ClientDumpConfig ( Dhcpv6ClientContext * context )

Dump DHCPv6 configuration for debugging purpose.

Parameters

[in] context Pointer to the DHCPv6 client context

Definition at line 1641 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientFlushAddrList()

void dhcpv6ClientFlushAddrList ( Dhcpv6ClientContext * context )

Flush the list of IPv6 addresses from the IA.

Parameters

[in] context Pointer to the DHCPv6 client context

Definition at line 1346 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientGenerateDuid()

error_t dhcpv6ClientGenerateDuid ( Dhcpv6ClientContext * context )

Generate client's DUID.

Parameters

[in] context Pointer to the DHCPv6 client context

Returns: Error code

Definition at line 1381 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientGenerateLinkLocalAddr()

error_t dhcpv6ClientGenerateLinkLocalAddr ( Dhcpv6ClientContext * context )

Generate a link-local address.

Parameters

[in] context Pointer to the DHCPv6 client context

Returns: Error code

Definition at line 1424 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientLinkChangeEvent()

void dhcpv6ClientLinkChangeEvent ( Dhcpv6ClientContext * context )

Callback function for link change event.

Parameters

[in] context Pointer to the DHCPv6 client context

Definition at line 177 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientParseAdvertise()

void dhcpv6ClientParseAdvertise	(	Dhcpv6ClientContext *	context,
		const Dhcpv6Message *	message,
		size_t	length
	)

Parse Advertise message.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	message	Pointer to the incoming message to parse
[in]	length	Length of the incoming message

Definition at line 518 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientParseIaAddrOption()

error_t dhcpv6ClientParseIaAddrOption	(	Dhcpv6ClientContext *	context,
		const Dhcpv6Option *	option
	)

Parse IA Address option.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	option	Pointer to the IA Address option to parse

Returns: Error code

Definition at line 1188 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientParseIaNaOption()

error_t dhcpv6ClientParseIaNaOption	(	Dhcpv6ClientContext *	context,
		const Dhcpv6Option *	option
	)

Parse IA_NA option.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	option	Pointer to the IA_NA option to parse

Returns: Error code

Definition at line 1074 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientParseReply()

void dhcpv6ClientParseReply	(	Dhcpv6ClientContext *	context,
		const Dhcpv6Message *	message,
		size_t	length
	)

Parse Reply message.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	message	Pointer to the incoming message to parse
[in]	length	Length of the incoming message

Definition at line 694 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientProcessMessage()

void dhcpv6ClientProcessMessage	(	NetInterface *	interface,
		const IpPseudoHeader *	pseudoHeader,
		const UdpHeader *	udpHeader,
		const NetBuffer *	buffer,
		size_t	offset,
		const NetRxAncillary *	ancillary,
		void *	param
	)

Process incoming DHCPv6 message.

Parameters

[in]	interface	Underlying network interface
[in]	pseudoHeader	UDP pseudo header
[in]	udpHeader	UDP header
[in]	buffer	Multi-part buffer containing the incoming DHCPv6 message
[in]	offset	Offset to the first byte of the DHCPv6 message
[in]	ancillary	Additional options passed to the stack along with the packet
[in]	param	Pointer to the DHCPv6 client context

Definition at line 459 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientRemoveAddr()

void dhcpv6ClientRemoveAddr	(	Dhcpv6ClientContext *	context,
		const Ipv6Addr *	addr
	)

Remove an IPv6 address from the IA.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	addr	IPv6 address to be removed

Definition at line 1308 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientSendMessage()

error_t dhcpv6ClientSendMessage	(	Dhcpv6ClientContext *	context,
		Dhcpv6MessageType	type
	)

Send Solicit message.

Parameters

[in]	context	Pointer to the DHCPv6 client context
[in]	type	DHCPv6 message type

Returns: Error code

Definition at line 253 of file dhcpv6_client_misc.c.

◆ dhcpv6ClientTick()

void dhcpv6ClientTick ( Dhcpv6ClientContext * context )

DHCPv6 client timer handler.

This routine must be periodically called by the TCP/IP stack to manage DHCPv6 client operation

Parameters

[in] context Pointer to the DHCPv6 client context

Definition at line 71 of file dhcpv6_client_misc.c.

Variable Documentation

◆ dhcpv6ClientTickCounter

systime_t dhcpv6ClientTickCounter

Definition at line 52 of file dhcpv6_client_misc.c.

Macros

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Function Documentation

◆ dhcpv6ClientAddAddr()

◆ dhcpv6ClientChangeState()

◆ dhcpv6ClientCheckServerId()

◆ dhcpv6ClientCheckTimeout()

◆ dhcpv6ClientComputeElapsedTime()

◆ dhcpv6ClientDumpConfig()

◆ dhcpv6ClientFlushAddrList()

◆ dhcpv6ClientGenerateDuid()

◆ dhcpv6ClientGenerateLinkLocalAddr()

◆ dhcpv6ClientLinkChangeEvent()

◆ dhcpv6ClientParseAdvertise()

◆ dhcpv6ClientParseIaAddrOption()

◆ dhcpv6ClientParseIaNaOption()

◆ dhcpv6ClientParseReply()

◆ dhcpv6ClientProcessMessage()

◆ dhcpv6ClientRemoveAddr()

◆ dhcpv6ClientSendMessage()

◆ dhcpv6ClientTick()

Variable Documentation

◆ dhcpv6ClientTickCounter