adj_midchain.c File Reference

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Data Structures
struct	adj_midchain_tx_trace_t_
	Trace data for packets traversing the midchain tx node. More...

Typedefs
typedef struct adj_midchain_tx_trace_t_	adj_midchain_tx_trace_t
	Trace data for packets traversing the midchain tx node. More...

Functions
static uword	adj_midchain_tx_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int interface_count)
static u8 *	format_adj_midchain_tx_trace (u8 *s, va_list *args)
static uword	adj_midchain_tx (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	adj_midchain_tx_no_count (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VNET_FEATURE_INIT (adj_midchain_tx_ip4, static)
	VNET_FEATURE_INIT (adj_midchain_tx_no_count_ip4, static)
	VNET_FEATURE_INIT (adj_midchain_tx_ip6, static)
	VNET_FEATURE_INIT (adj_midchain_tx_no_count_ip6, static)
	VNET_FEATURE_INIT (adj_midchain_tx_mpls, static)
	VNET_FEATURE_INIT (adj_midchain_tx_no_count_mpls, static)
	VNET_FEATURE_INIT (adj_midchain_tx_ethernet, static)
	VNET_FEATURE_INIT (adj_midchain_tx_no_count_ethernet, static)
	VNET_FEATURE_INIT (adj_midchain_tx_nsh, static)
	VNET_FEATURE_INIT (adj_midchain_tx_no_count_nsh, static)
static u32	adj_get_midchain_node (vnet_link_t link)
static u8	adj_midchain_get_feature_arc_index_for_link_type (const ip_adjacency_t *adj)
static u32	adj_nbr_midchain_get_tx_node (ip_adjacency_t *adj)
static u32	adj_nbr_midchain_get_feature_node (ip_adjacency_t *adj)
void	adj_midchain_setup (adj_index_t adj_index, adj_midchain_fixup_t fixup, adj_flags_t flags)
	adj_midchain_setup More...
void	adj_nbr_midchain_update_rewrite (adj_index_t adj_index, adj_midchain_fixup_t fixup, adj_flags_t flags, u8 *rewrite)
	adj_nbr_midchain_update_rewrite More...
void	adj_nbr_midchain_unstack (adj_index_t adj_index)
	adj_nbr_midchain_unstack More...
void	adj_nbr_midchain_stack (adj_index_t adj_index, const dpo_id_t *next)
	adj_nbr_midchain_stack More...
u8 *	format_adj_midchain (u8 *s, va_list *ap)
	Format a midchain adjacency. More...
static void	adj_dpo_lock (dpo_id_t *dpo)
static void	adj_dpo_unlock (dpo_id_t *dpo)
void	adj_midchain_module_init (void)
	Module initialisation. More...

Variables
static u32	adj_midchain_tx_feature_node [VNET_LINK_NUM]
	The two midchain tx feature node indices. More...
static u32	adj_midchain_tx_no_count_feature_node [VNET_LINK_NUM]
static vlib_node_registration_t	adj_midchain_tx_node
	(constructor) VLIB_REGISTER_NODE (adj_midchain_tx_node) More...
static vlib_node_registration_t	adj_midchain_tx_no_count_node
	(constructor) VLIB_REGISTER_NODE (adj_midchain_tx_no_count_node) More...
static const dpo_vft_t	adj_midchain_dpo_vft
static const char *const	midchain_ip4_nodes []
	The per-protocol VLIB graph nodes that are assigned to a midchain object. More...
static const char *const	midchain_ip6_nodes []
static const char *const	midchain_mpls_nodes []
static const char *const	midchain_ethernet_nodes []
static const char *const	midchain_nsh_nodes []
static const char *const *const	midchain_nodes [DPO_PROTO_NUM]

Typedef Documentation

typedef struct adj_midchain_tx_trace_t_ adj_midchain_tx_trace_t

Trace data for packets traversing the midchain tx node.

Function Documentation

static void adj_dpo_lock ( dpo_id_t *  dpo )

static

Definition at line 604 of file adj_midchain.c.

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static void adj_dpo_unlock ( dpo_id_t *  dpo )

static

Definition at line 609 of file adj_midchain.c.

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static u32 adj_get_midchain_node ( vnet_link_t  link )

inlinestatic

Definition at line 375 of file adj_midchain.c.

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static u8 adj_midchain_get_feature_arc_index_for_link_type ( const ip_adjacency_t *  adj )

static

Definition at line 396 of file adj_midchain.c.

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void adj_midchain_module_init

(

void

)

Module initialisation.

Definition at line 664 of file adj_midchain.c.

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void adj_midchain_setup	(	adj_index_t	adj_index,
		adj_midchain_fixup_t	fixup,
		adj_flags_t	flags
	)

adj_midchain_setup

Setup the adj as a mid-chain

Definition at line 461 of file adj_midchain.c.

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static uword adj_midchain_tx ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 272 of file adj_midchain.c.

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static uword adj_midchain_tx_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  interface_count  )

inlinestatic

Definition at line 43 of file adj_midchain.c.

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static uword adj_midchain_tx_no_count ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 293 of file adj_midchain.c.

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static u32 adj_nbr_midchain_get_feature_node ( ip_adjacency_t *  adj )

static

Definition at line 445 of file adj_midchain.c.

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static u32 adj_nbr_midchain_get_tx_node ( ip_adjacency_t *  adj )

static

Definition at line 437 of file adj_midchain.c.

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void adj_nbr_midchain_stack	(	adj_index_t	adj_index,
		const dpo_id_t *	next
	)

adj_nbr_midchain_stack

[re]stack a midchain.

Definition at line 565 of file adj_midchain.c.

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void adj_nbr_midchain_unstack

(

adj_index_t

adj_index

)

adj_nbr_midchain_unstack

unstack a midchain.

Unstack the adj. stack it on drop

Definition at line 543 of file adj_midchain.c.

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void adj_nbr_midchain_update_rewrite	(	adj_index_t	adj_index,
		adj_midchain_fixup_t	fixup,
		adj_flags_t	flags,
		u8 *	rewrite
	)

adj_nbr_midchain_update_rewrite

Midchain Adjacency sub-type.

Update the adjacency's rewrite string. A NULL string implies the rewrite is reset (i.e. when ARP/ND etnry is gone). NB: the adj being updated may be handling traffic in the DP.

Definition at line 504 of file adj_midchain.c.

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u8* format_adj_midchain	(	u8 *	s,
		va_list *	ap
	)

Format a midchain adjacency.

Definition at line 583 of file adj_midchain.c.

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static u8* format_adj_midchain_tx_trace ( u8 *  s, va_list *  args  )

static

Definition at line 258 of file adj_midchain.c.

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VNET_FEATURE_INIT	(	adj_midchain_tx_ip4	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_no_count_ip4	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_ip6	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_no_count_ip6	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_mpls	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_no_count_mpls	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_ethernet	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_no_count_ethernet	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_nsh	,
		static
	)

VNET_FEATURE_INIT	(	adj_midchain_tx_no_count_nsh	,
		static
	)

Variable Documentation

const dpo_vft_t adj_midchain_dpo_vft

static

Initial value:

= {
    .dv_lock = adj_dpo_lock,
    .dv_unlock = adj_dpo_unlock,
    .dv_format = format_adj_midchain,
    .dv_get_urpf = adj_dpo_get_urpf,
}

Definition at line 614 of file adj_midchain.c.

u32 adj_midchain_tx_feature_node[VNET_LINK_NUM]

static

The two midchain tx feature node indices.

Definition at line 28 of file adj_midchain.c.

u32 adj_midchain_tx_no_count_feature_node[VNET_LINK_NUM]

static

Definition at line 29 of file adj_midchain.c.

vlib_node_registration_t adj_midchain_tx_no_count_node

static

Initial value:

= {
    .function = adj_midchain_tx_no_count,
    .name = "adj-midchain-tx-no-count",
    .vector_size = sizeof (u32),

    .format_trace = format_adj_midchain_tx_trace,

    .n_next_nodes = 1,
    .next_nodes = {
        [0] = "error-drop",
    },
}

(constructor) VLIB_REGISTER_NODE (adj_midchain_tx_no_count_node)

Definition at line 300 of file adj_midchain.c.

vlib_node_registration_t adj_midchain_tx_node

static

Initial value:

= {
    .function = adj_midchain_tx,
    .name = "adj-midchain-tx",
    .vector_size = sizeof (u32),

    .format_trace = format_adj_midchain_tx_trace,

    .n_next_nodes = 1,
    .next_nodes = {
        [0] = "error-drop",
    },
}

(constructor) VLIB_REGISTER_NODE (adj_midchain_tx_node)

Definition at line 279 of file adj_midchain.c.

const char* const midchain_ethernet_nodes[]

static

Initial value:

=
{
    "adj-l2-midchain",
    NULL,
}

Definition at line 643 of file adj_midchain.c.

const char* const midchain_ip4_nodes[]

static

Initial value:

=
{
    "ip4-midchain",
    NULL,
}

The per-protocol VLIB graph nodes that are assigned to a midchain object.

this means that these graph nodes are ones from which a midchain is the parent object in the DPO-graph.

Definition at line 628 of file adj_midchain.c.

const char* const midchain_ip6_nodes[]

static

Initial value:

=
{
    "ip6-midchain",
    NULL,
}

Definition at line 633 of file adj_midchain.c.

const char* const midchain_mpls_nodes[]

static

Initial value:

=
{
    "mpls-midchain",
    NULL,
}

Definition at line 638 of file adj_midchain.c.

const char* const* const midchain_nodes[DPO_PROTO_NUM]

static

Initial value:

=
{
    [DPO_PROTO_IP4]  = midchain_ip4_nodes,
    [DPO_PROTO_IP6]  = midchain_ip6_nodes,
    [DPO_PROTO_MPLS] = midchain_mpls_nodes,
    [DPO_PROTO_ETHERNET] = midchain_ethernet_nodes,
    [DPO_PROTO_NSH] = midchain_nsh_nodes,
}

Definition at line 654 of file adj_midchain.c.

const char* const midchain_nsh_nodes[]

static

Initial value:

=
{
    "adj-nsh-midchain",
    NULL,
}

Definition at line 648 of file adj_midchain.c.