ip_adjacency_t_ Struct Reference

IP unicast adjacency. More...

Collaboration diagram for ip_adjacency_t_:

Public Member Functions
	CLIB_CACHE_LINE_ALIGN_MARK (cacheline0)
	CLIB_CACHE_LINE_ALIGN_MARK (cacheline1)
	vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE)

Data Fields
fib_node_t	ia_node
	Linkage into the FIB node grpah. More...
ip_lookup_next_t	lookup_next_index
	Next hop after ip4-lookup. More...
vnet_link_t	ia_link
	link/ether-type 1 bytes More...
fib_protocol_t	ia_nh_proto
	The protocol of the neighbor/peer. More...
adj_flags_t	ia_flags
	Flags on the adjacency 1-bytes. More...
union {
struct {
ip46_address_t   next_hop
}   nbr
	IP_LOOKUP_NEXT_ARP/IP_LOOKUP_NEXT_REWRITE. More...
struct {
ip46_address_t   next_hop
	The recursive next-hop. More...
dpo_id_t   next_dpo
	The next DPO to use. More...
adj_midchain_fixup_t   fixup_func
	A function to perform the post-rewrite fixup. More...
const void *   fixup_data
	Fixup data passed back to the client in the fixup function. More...
fib_node_index_t   fei
	the FIB entry this midchain resolves through. More...
}   midchain
	IP_LOOKUP_NEXT_MIDCHAIN. More...
struct {
ip46_address_t   receive_addr
}   glean
	IP_LOOKUP_NEXT_GLEAN. More...
}	sub_type
struct adj_delegate_t_ *	ia_delegates
	more control plane members that do not fit on the first cacheline More...

Detailed Description

IP unicast adjacency.

Note

cache aligned.

An adjacency is a represenation of a peer on a particular link.

Definition at line 221 of file adj.h.

Member Function Documentation

ip_adjacency_t_::CLIB_CACHE_LINE_ALIGN_MARK

(

cacheline0

)

ip_adjacency_t_::CLIB_CACHE_LINE_ALIGN_MARK

(

cacheline1

)

ip_adjacency_t_::vnet_declare_rewrite

(

VLIB_BUFFER_PRE_DATA_SIZE

)

Field Documentation

fib_node_index_t ip_adjacency_t_::fei

the FIB entry this midchain resolves through.

required for recursive loop detection.

Definition at line 300 of file adj.h.

const void* ip_adjacency_t_::fixup_data

Fixup data passed back to the client in the fixup function.

Definition at line 295 of file adj.h.

adj_midchain_fixup_t ip_adjacency_t_::fixup_func

A function to perform the post-rewrite fixup.

Definition at line 291 of file adj.h.

struct { ... } ip_adjacency_t_::glean

IP_LOOKUP_NEXT_GLEAN.

Glean the address to ARP for from the packet's destination. Technically these aren't adjacencies, i.e. they are not a representation of a peer. One day we might untangle this coupling and use a new Glean DPO.

struct adj_delegate_t_* ip_adjacency_t_::ia_delegates

more control plane members that do not fit on the first cacheline

A sorted vector of delegates

Definition at line 327 of file adj.h.

adj_flags_t ip_adjacency_t_::ia_flags

Flags on the adjacency 1-bytes.

Definition at line 255 of file adj.h.

vnet_link_t ip_adjacency_t_::ia_link

link/ether-type 1 bytes

Definition at line 242 of file adj.h.

fib_protocol_t ip_adjacency_t_::ia_nh_proto

The protocol of the neighbor/peer.

i.e. the protocol with which to interpret the 'next-hop' attirbutes of the sub-types. 1-btyes

Definition at line 249 of file adj.h.

fib_node_t ip_adjacency_t_::ia_node

Linkage into the FIB node grpah.

First member since this type has 8 byte alignment requirements.

Definition at line 229 of file adj.h.

ip_lookup_next_t ip_adjacency_t_::lookup_next_index

Next hop after ip4-lookup.

This is not accessed in the rewrite nodes. 1-bytes

Definition at line 236 of file adj.h.

struct { ... } ip_adjacency_t_::midchain

IP_LOOKUP_NEXT_MIDCHAIN.

A nbr adj that is also recursive. Think tunnels. A nbr adj can transition to be of type MDICHAIN so be sure to leave the two structs with the next_hop fields aligned.

struct { ... } ip_adjacency_t_::nbr

IP_LOOKUP_NEXT_ARP/IP_LOOKUP_NEXT_REWRITE.

neighbour adjacency sub-type;

dpo_id_t ip_adjacency_t_::next_dpo

The next DPO to use.

Definition at line 287 of file adj.h.

ip46_address_t ip_adjacency_t_::next_hop

The recursive next-hop.

This field MUST be at the same memory location as sub_type.nbr.next_hop

Definition at line 266 of file adj.h.

ip46_address_t ip_adjacency_t_::receive_addr

Definition at line 312 of file adj.h.

union { ... } ip_adjacency_t_::sub_type

---

The documentation for this struct was generated from the following file:

• src/vnet/adj/adj.h