ND Data Structure Access
[ICMPv6 Handling]

Collaboration diagram for ND Data Structure Access:

Data Structures
struct	fip_nd6_neighbourCache_t
	Entry of a neighbour cache. More...
struct	fip_nd6_option_t
	Generic option type structure for processing. More...
struct	fip_nd6_optionStruct_t
	Holds all the options processed. More...
Files
file	fip_nd6_ds6.c
	Private data structures accessed by fip_nd6.c file.
file	fip_nd6_ds6.h
	Header for private data structures accessed by fip_nd6.c file.
Defines
#define	fip_nd6_neighbourCache_getState(ifnum, index)   fip_neighbourCache[ifnum][index].state
	Set the state of a neighbour cache entry.
#define	MAX_ICMPV6_OPTIONS   10
	Maximum options that can be attached to one ND ICMPv6 Message.
Typedefs
typedef fip_ds6_index_t	fip_nd6_index_t
	Inherit size from generic data structures.
typedef fip_ds6_searchStatus_t	fip_nd6_searchStatus_t
	Inherit size from generic data structures.
Enumerations
enum	fip_nd6_nbrstate_t
	State a neighbour can be in.
Functions
fip_nd6_index_t	fip_nd6_neighbourCache_makeRoom (fip_ifnum_t ifnum)
	Make room in the neighbour cache for a new entry.
fip_nd6_searchStatus_t	fip_nd6_neighbourCache_lookupByIp (fip_ifnum_t ifnum, const fip_ip6addr_t *const address)
	Lookup an address in the neighbour table by IP address.
void	fip_nd6_neighbourCache_updateLL (fip_ifnum_t ifnum, fip_nd6_index_t index, fip_llptraddr_t lladdr)
	Update the Link-Layer address of a neighbour cache entry.

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Define Documentation

#define MAX_ICMPV6_OPTIONS   10

Maximum options that can be attached to one ND ICMPv6 Message.

Referenced by fip_nd6_process().

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Function Documentation

fip_nd6_searchStatus_t fip_nd6_neighbourCache_lookupByIp	(	fip_ifnum_t	ifnum,
		const fip_ip6addr_t *const	address
	)

Lookup an address in the neighbour table by IP address.

Parameters:

address

Pointer to IP Address

Returns:

fip_nd6_searchStatus_t type indicating status of search

References fip_ip6addr_t::addr, and fip_ds6_searchList().

Referenced by fip_ip_send(), fip_nd6_processLLAO(), fip_nd6_processNA(), fip_nd6_processNS(), fip_nd6_processRA(), fip_route6_getNextHop(), and fip_task().

Here is the call graph for this function:

fip_nd6_index_t fip_nd6_neighbourCache_makeRoom

(

fip_ifnum_t

ifnum

)

Make room in the neighbour cache for a new entry.

If there is no room it just clobbers some poor existing entry.

Parameters:

ifnum

Interface number to make room on

Returns:

The index of the available space

Referenced by fip_nd6_neighbourCache_add().

void fip_nd6_neighbourCache_updateLL	(	fip_ifnum_t	ifnum,
		fip_nd6_index_t	index,
		fip_llptraddr_t	lladdr
	)

Update the Link-Layer address of a neighbour cache entry.

If the lladdr is different from the one currently stored, the state is set to STALE.

Parameters:

	ifnum	Interface number to update on
	index	The entry to update.
	lladdr	The updated Link-Layer address.

Referenced by fip_nd6_processLLAO(), fip_nd6_processNA(), and fip_nd6_processNS().