ip_null_dpo.c File Reference

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Data Structures
struct	ip_null_dpo_t_
	The data-path object representing dropping the packet. More...
struct	ip_null_dpo_trace_t_

Typedefs
typedef struct ip_null_dpo_t_	ip_null_dpo_t
	The data-path object representing dropping the packet. More...
typedef struct ip_null_dpo_trace_t_	ip_null_dpo_trace_t
typedef enum ip_null_next_t_	ip_null_next_t
	Exit nodes from a IP_NULL. More...

Enumerations
enum	ip_null_next_t_ { IP_NULL_NEXT_DROP, IP_NULL_NEXT_ICMP, IP_NULL_NEXT_NUM }
	Exit nodes from a IP_NULL. More...

Functions
void	ip_null_dpo_add_and_lock (dpo_proto_t proto, ip_null_dpo_action_t action, dpo_id_t *dpo)
static const ip_null_dpo_t *	ip_null_dpo_get (index_t indi)
static void	ip_null_dpo_lock (dpo_id_t *dpo)
static void	ip_null_dpo_unlock (dpo_id_t *dpo)
static u8 *	format_ip_null_dpo (u8 *s, va_list *ap)
static uword	ip_null_dpo_switch (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, u8 is_ip4)
static u8 *	format_ip_null_dpo_trace (u8 *s, va_list *args)
static uword	ip4_null_dpo_switch (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	ip6_null_dpo_switch (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
void	ip_null_dpo_module_init (void)

Variables
static ip_null_dpo_t	ip_null_dpos [2 *IP_NULL_DPO_ACTION_NUM]
	the IP_NULL dpos are shared by all routes, hence they are global. More...
const char *	ip_null_action_strings [] = IP_NULL_ACTIONS
	Action strings. More...
static const dpo_vft_t	ip_null_vft
static const char *const	ip4_null_nodes []
	The per-protocol VLIB graph nodes that are assigned to a ip_null object. More...
static const char *const	ip6_null_nodes []
static const char *const *const	ip_null_nodes [DPO_PROTO_NUM]
vlib_node_registration_t	ip4_null_dpo_node
	(constructor) VLIB_REGISTER_NODE (ip4_null_dpo_node) More...
vlib_node_registration_t	ip6_null_dpo_node
	(constructor) VLIB_REGISTER_NODE (ip6_null_dpo_node) More...

Typedef Documentation

typedef struct ip_null_dpo_t_ ip_null_dpo_t

The data-path object representing dropping the packet.

A representation of the IP_NULL DPO

typedef struct ip_null_dpo_trace_t_ ip_null_dpo_trace_t

typedef enum ip_null_next_t_ ip_null_next_t

Exit nodes from a IP_NULL.

Enumeration Type Documentation

enum ip_null_next_t_

Exit nodes from a IP_NULL.

Enumerator
IP_NULL_NEXT_DROP
IP_NULL_NEXT_ICMP
IP_NULL_NEXT_NUM

Definition at line 166 of file ip_null_dpo.c.

Function Documentation

static u8* format_ip_null_dpo ( u8 *  s, va_list *  ap  )

static

Definition at line 113 of file ip_null_dpo.c.

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

static

Definition at line 346 of file ip_null_dpo.c.

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static uword ip4_null_dpo_switch ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 357 of file ip_null_dpo.c.

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static uword ip6_null_dpo_switch ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 381 of file ip_null_dpo.c.

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void ip_null_dpo_add_and_lock	(	dpo_proto_t	proto,
		ip_null_dpo_action_t	action,
		dpo_id_t *	dpo
	)

Definition at line 78 of file ip_null_dpo.c.

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static const ip_null_dpo_t* ip_null_dpo_get ( index_t  indi )

inlinestatic

Definition at line 94 of file ip_null_dpo.c.

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static void ip_null_dpo_lock ( dpo_id_t *  dpo )

static

Definition at line 100 of file ip_null_dpo.c.

void ip_null_dpo_module_init

(

void

)

Definition at line 405 of file ip_null_dpo.c.

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static uword ip_null_dpo_switch ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, u8  is_ip4  )

inlinestatic

Definition at line 174 of file ip_null_dpo.c.

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static void ip_null_dpo_unlock ( dpo_id_t *  dpo )

static

Definition at line 108 of file ip_null_dpo.c.

Variable Documentation

vlib_node_registration_t ip4_null_dpo_node

Initial value:

= {
  .function = ip4_null_dpo_switch,
  .name = "ip4-null",
  .vector_size = sizeof (u32),

  .format_trace = format_ip_null_dpo_trace,
  .n_next_nodes = IP_NULL_NEXT_NUM,
  .next_nodes = {
      [IP_NULL_NEXT_DROP] = "ip4-drop",
      [IP_NULL_NEXT_ICMP] = "ip4-icmp-error",
  },
}

(constructor) VLIB_REGISTER_NODE (ip4_null_dpo_node)

Definition at line 367 of file ip_null_dpo.c.

const char* const ip4_null_nodes[]

static

Initial value:

=
{
    "ip4-null",
    NULL,
}

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

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

Definition at line 141 of file ip_null_dpo.c.

vlib_node_registration_t ip6_null_dpo_node

Initial value:

= {
  .function = ip6_null_dpo_switch,
  .name = "ip6-null",
  .vector_size = sizeof (u32),

  .format_trace = format_ip_null_dpo_trace,
  .n_next_nodes = IP_NULL_NEXT_NUM,
  .next_nodes = {
      [IP_NULL_NEXT_DROP] = "ip6-drop",
      [IP_NULL_NEXT_ICMP] = "ip6-icmp-error",
  },
}

(constructor) VLIB_REGISTER_NODE (ip6_null_dpo_node)

Definition at line 391 of file ip_null_dpo.c.

const char* const ip6_null_nodes[]

static

Initial value:

=
{
    "ip6-null",
    NULL,
}

Definition at line 146 of file ip_null_dpo.c.

const char* ip_null_action_strings[] = IP_NULL_ACTIONS

Action strings.

Definition at line 75 of file ip_null_dpo.c.

ip_null_dpo_t ip_null_dpos[2 *IP_NULL_DPO_ACTION_NUM]

static

Initial value:

= {
    [0] = {
        
        .ind_action = IP_NULL_ACTION_NONE,
    },
    [1] = {
        
        .ind_action = IP_NULL_ACTION_SEND_ICMP_UNREACH,
    },
    [2] = {
        
        .ind_action = IP_NULL_ACTION_SEND_ICMP_PROHIBIT,
    },
    [3] = {
        
        .ind_action = IP_NULL_ACTION_NONE,
    },
    [4] = {
        
        .ind_action = IP_NULL_ACTION_SEND_ICMP_UNREACH,
    },
    [5] = {
        
        .ind_action = IP_NULL_ACTION_SEND_ICMP_PROHIBIT,
    },
}

the IP_NULL dpos are shared by all routes, hence they are global.

As the neame implies this is only for IP, hence 2.

Definition at line 45 of file ip_null_dpo.c.

const char* const* const ip_null_nodes[DPO_PROTO_NUM]

static

Initial value:

=
{
    [DPO_PROTO_IP4] = ip4_null_nodes,
    [DPO_PROTO_IP6] = ip6_null_nodes,
}

Definition at line 152 of file ip_null_dpo.c.

const dpo_vft_t ip_null_vft

static

Initial value:

= {
    .dv_lock   = ip_null_dpo_lock,
    .dv_unlock = ip_null_dpo_unlock,
    .dv_format = format_ip_null_dpo,
}

Definition at line 128 of file ip_null_dpo.c.