nat_det_out2in.c File Reference

Deterministic/CGN NAT44 outside to inside network translation. More...

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Data Structures
struct	nat_det_out2in_trace_t

Macros
#define	foreach_nat_det_out2in_error

Enumerations
enum	nat_det_out2in_next_t { NAT_DET_OUT2IN_NEXT_DROP, NAT_DET_OUT2IN_NEXT_LOOKUP, NAT_DET_OUT2IN_NEXT_ICMP_ERROR, NAT_DET_OUT2IN_N_NEXT }
enum	nat_det_out2in_error_t { SNAT_OUT2IN_N_ERROR }

Functions
static u8 *	format_nat_det_out2in_trace (u8 *s, va_list *args)
u32	icmp_match_out2in_det (snat_main_t *sm, vlib_node_runtime_t *node, u32 thread_index, vlib_buffer_t *b0, ip4_header_t *ip0, u8 *p_proto, snat_session_key_t *p_value, u8 *p_dont_translate, void *d, void *e)
	Get address and port values to be used for ICMP packet translation and create session if needed. More...
static uword	snat_det_out2in_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (snat_det_out2in_node, snat_det_out2in_node_fn)

Variables
static char *	nat_det_out2in_error_strings []
vlib_node_registration_t	snat_det_out2in_node
	(constructor) VLIB_REGISTER_NODE (snat_det_out2in_node) More...

Detailed Description

Deterministic/CGN NAT44 outside to inside network translation.

Definition in file nat_det_out2in.c.

Macro Definition Documentation

foreach_nat_det_out2in_error

#define foreach_nat_det_out2in_error

Value:

_(UNSUPPORTED_PROTOCOL, "Unsupported protocol")         \
_(NO_TRANSLATION, "No translation")                     \
_(BAD_ICMP_TYPE, "unsupported ICMP type")               \
_(OUT2IN_PACKETS, "Good out2in packets processed")

Definition at line 45 of file nat_det_out2in.c.

Enumeration Type Documentation

nat_det_out2in_error_t

enum nat_det_out2in_error_t

Enumerator
SNAT_OUT2IN_N_ERROR

Definition at line 51 of file nat_det_out2in.c.

nat_det_out2in_next_t

enum nat_det_out2in_next_t

Enumerator
NAT_DET_OUT2IN_NEXT_DROP
NAT_DET_OUT2IN_NEXT_LOOKUP
NAT_DET_OUT2IN_NEXT_ICMP_ERROR
NAT_DET_OUT2IN_N_NEXT

Definition at line 30 of file nat_det_out2in.c.

Function Documentation

format_nat_det_out2in_trace()

static u8* format_nat_det_out2in_trace ( u8 *  s, va_list *  args  )

static

Definition at line 68 of file nat_det_out2in.c.

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icmp_match_out2in_det()

u32 icmp_match_out2in_det	(	snat_main_t *	sm,
		vlib_node_runtime_t *	node,
		u32	thread_index,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		u8 *	p_proto,
		snat_session_key_t *	p_value,
		u8 *	p_dont_translate,
		void *	d,
		void *	e
	)

Get address and port values to be used for ICMP packet translation and create session if needed.

Parameters

[in,out]	sm	NAT main
[in,out]	node	NAT node runtime
[in]	thread_index	thread index
[in,out]	b0	buffer containing packet to be translated
[out]	p_proto	protocol used for matching
[out]	p_value	address and port after NAT translation
[out]	p_dont_translate	if packet should not be translated
	d	optional parameter
	e	optional parameter

Definition at line 96 of file nat_det_out2in.c.

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snat_det_out2in_node_fn()

static uword snat_det_out2in_node_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 222 of file nat_det_out2in.c.

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VLIB_NODE_FUNCTION_MULTIARCH()

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_det_out2in_node	,
		snat_det_out2in_node_fn
	)

Variable Documentation

nat_det_out2in_error_strings

char* nat_det_out2in_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_nat_det_out2in_error

}

Definition at line 59 of file nat_det_out2in.c.

snat_det_out2in_node

vlib_node_registration_t snat_det_out2in_node

Initial value:

= {
  .function = snat_det_out2in_node_fn,
  .name = "nat44-det-out2in",
  .vector_size = sizeof (u32),
  .format_trace = format_nat_det_out2in_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat_det_out2in_error_strings),
  .error_strings = nat_det_out2in_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = NAT_DET_OUT2IN_N_NEXT,
  
  .next_nodes = {
    [NAT_DET_OUT2IN_NEXT_DROP] = "error-drop",
    [NAT_DET_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
    [NAT_DET_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_det_out2in_node)

Definition at line 65 of file nat_det_out2in.c.