ip_null_dpo.h File Reference

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Macros
#define	IP_NULL_ACTIONS
#define	IP_NULL_DPO_ACTION_NUM   (IP_NULL_ACTION_SEND_ICMP_PROHIBIT+1)

Typedefs
typedef enum ip_null_dpo_action_t_	ip_null_dpo_action_t
	The IP NULL DPO represents the rubbish bin for IP traffic. More...

Enumerations
enum	ip_null_dpo_action_t_ { IP_NULL_ACTION_NONE, IP_NULL_ACTION_SEND_ICMP_UNREACH, IP_NULL_ACTION_SEND_ICMP_PROHIBIT }
	The IP NULL DPO represents the rubbish bin for IP traffic. More...

Functions
void	ip_null_dpo_add_and_lock (dpo_proto_t proto, ip_null_dpo_action_t action, dpo_id_t *dpo)
void	ip_null_dpo_module_init (void)
ip_null_dpo_action_t	ip_null_dpo_get_action (index_t indi)

Macro Definition Documentation

#define IP_NULL_ACTIONS

Value:

{                                               \
    [IP_NULL_ACTION_NONE] = "discard",                                  \
    [IP_NULL_ACTION_SEND_ICMP_UNREACH] = "send-unreachable",            \
    [IP_NULL_ACTION_SEND_ICMP_PROHIBIT] = "send-prohibited",            \
}

Definition at line 42 of file ip_null_dpo.h.

#define IP_NULL_DPO_ACTION_NUM   (IP_NULL_ACTION_SEND_ICMP_PROHIBIT+1)

Definition at line 48 of file ip_null_dpo.h.

Typedef Documentation

typedef enum ip_null_dpo_action_t_ ip_null_dpo_action_t

The IP NULL DPO represents the rubbish bin for IP traffic.

Without specifying an action (i.e. send IMCP type X to sender) it is equivalent to using a drop DPO. However, in contrast to the drop DPO any route that resovles via a NULL, is considered to 'resolved' by FIB, i.e. a IP NULL is used when the control plane is explicitly expressing the desire to drop packets. Drop DPOs are used internally by FIB when resolution is not possible.

Any replies to sender are rate limited. Actions to take when a packet encounters the NULL DPO

Enumeration Type Documentation

enum ip_null_dpo_action_t_

The IP NULL DPO represents the rubbish bin for IP traffic.

Without specifying an action (i.e. send IMCP type X to sender) it is equivalent to using a drop DPO. However, in contrast to the drop DPO any route that resovles via a NULL, is considered to 'resolved' by FIB, i.e. a IP NULL is used when the control plane is explicitly expressing the desire to drop packets. Drop DPOs are used internally by FIB when resolution is not possible.

Any replies to sender are rate limited. Actions to take when a packet encounters the NULL DPO

Enumerator
IP_NULL_ACTION_NONE
IP_NULL_ACTION_SEND_ICMP_UNREACH
IP_NULL_ACTION_SEND_ICMP_PROHIBIT

Definition at line 35 of file ip_null_dpo.h.

Function Documentation

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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ip_null_dpo_action_t ip_null_dpo_get_action

(

index_t

indi

)

Definition at line 100 of file ip_null_dpo.c.

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void ip_null_dpo_module_init

(

void

)

Definition at line 411 of file ip_null_dpo.c.

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