nat44_ed_out2in.c File Reference

NAT44 endpoint-dependent outside to inside network translation. More...

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Data Structures
struct	nat44_ed_out2in_trace_t

Enumerations
enum	nat_slow_path_reason_e {   NAT_ED_SP_REASON_NO_REASON, NAT_ED_SP_REASON_LOOKUP_FAILED, NAT_ED_SP_REASON_VRF_EXPIRED, NAT_ED_SP_TCP_CLOSED,   NAT_ED_SP_SESS_EXPIRED }

Functions
static u8 *	format_slow_path_reason (u8 *s, va_list *args)
static u8 *	format_nat44_ed_out2in_trace (u8 *s, va_list *args)
static int	next_src_nat (snat_main_t *sm, ip4_header_t *ip, u16 src_port, u16 dst_port, u32 thread_index, u32 rx_fib_index)
static void	create_bypass_for_fwd (snat_main_t *sm, vlib_buffer_t *b, snat_session_t *s, ip4_header_t *ip, u32 rx_fib_index, u32 thread_index)
static snat_session_t *	create_session_for_static_mapping_ed (snat_main_t *sm, vlib_buffer_t *b, ip4_address_t i2o_addr, u16 i2o_port, u32 i2o_fib_index, ip4_address_t o2i_addr, u16 o2i_port, u32 o2i_fib_index, nat_protocol_t nat_proto, vlib_node_runtime_t *node, u32 rx_fib_index, u32 thread_index, twice_nat_type_t twice_nat, lb_nat_type_t lb_nat, f64 now, snat_static_mapping_t *mapping)
static u32	icmp_out2in_ed_slow_path (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, icmp46_header_t *icmp, u32 sw_if_index, u32 rx_fib_index, vlib_node_runtime_t *node, u32 next, f64 now, u32 thread_index, snat_session_t **s_p)
static_always_inline int	nat_alloc_addr_and_port_exact (snat_address_t *a, u32 thread_index, nat_protocol_t proto, ip4_address_t *addr, u16 *port, u16 port_per_thread, u32 snat_thread_index)
static_always_inline int	nat44_ed_alloc_outside_addr_and_port (snat_address_t *addresses, u32 fib_index, u32 thread_index, nat_protocol_t proto, ip4_address_t *addr, u16 *port, u16 port_per_thread, u32 snat_thread_index)
static snat_session_t *	nat44_ed_out2in_slowpath_unknown_proto (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip, u32 rx_fib_index, u32 thread_index, f64 now, vlib_main_t *vm, vlib_node_runtime_t *node)
static uword	nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_multi_worker)
static uword	nat44_ed_out2in_slow_path_node_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_out2in_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_out2in_slowpath_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static u8 *	format_nat_pre_trace (u8 *s, va_list *args)
VLIB_NODE_FN()	nat_pre_out2in_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)

Variables
static char *	nat_out2in_ed_error_strings []
vlib_node_registration_t	nat44_ed_out2in_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_out2in_node) More...
vlib_node_registration_t	nat44_ed_out2in_slowpath_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_out2in_slowpath_node) More...
vlib_node_registration_t	nat_pre_out2in_node
	(constructor) VLIB_REGISTER_NODE (nat_pre_out2in_node) More...

Detailed Description

NAT44 endpoint-dependent outside to inside network translation.

Definition in file nat44_ed_out2in.c.

Enumeration Type Documentation

nat_slow_path_reason_e

enum nat_slow_path_reason_e

Enumerator
NAT_ED_SP_REASON_NO_REASON
NAT_ED_SP_REASON_LOOKUP_FAILED
NAT_ED_SP_REASON_VRF_EXPIRED
NAT_ED_SP_TCP_CLOSED
NAT_ED_SP_SESS_EXPIRED

Definition at line 40 of file nat44_ed_out2in.c.

Function Documentation

create_bypass_for_fwd()

static void create_bypass_for_fwd ( snat_main_t *  sm, vlib_buffer_t *  b, snat_session_t *  s, ip4_header_t *  ip, u32  rx_fib_index, u32  thread_index  )

static

Definition at line 604 of file nat44_ed_out2in.c.

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create_session_for_static_mapping_ed()

static snat_session_t * create_session_for_static_mapping_ed ( snat_main_t *  sm, vlib_buffer_t *  b, ip4_address_t  i2o_addr, u16  i2o_port, u32  i2o_fib_index, ip4_address_t  o2i_addr, u16  o2i_port, u32  o2i_fib_index, nat_protocol_t  nat_proto, vlib_node_runtime_t *  node, u32  rx_fib_index, u32  thread_index, twice_nat_type_t  twice_nat, lb_nat_type_t  lb_nat, f64  now, snat_static_mapping_t *  mapping  )

static

Definition at line 398 of file nat44_ed_out2in.c.

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format_nat44_ed_out2in_trace()

static u8* format_nat44_ed_out2in_trace ( u8 *  s, va_list *  args  )

static

Definition at line 85 of file nat44_ed_out2in.c.

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format_nat_pre_trace()

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

static

Definition at line 1436 of file nat44_ed_out2in.c.

format_slow_path_reason()

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

static

Definition at line 65 of file nat44_ed_out2in.c.

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icmp_out2in_ed_slow_path()

static u32 icmp_out2in_ed_slow_path ( snat_main_t *  sm, vlib_buffer_t *  b, ip4_header_t *  ip, icmp46_header_t *  icmp, u32  sw_if_index, u32  rx_fib_index, vlib_node_runtime_t *  node, u32  next, f64  now, u32  thread_index, snat_session_t **  s_p  )

inlinestatic

Definition at line 150 of file nat44_ed_out2in.c.

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nat44_ed_alloc_outside_addr_and_port()

static_always_inline int nat44_ed_alloc_outside_addr_and_port	(	snat_address_t *	addresses,
		u32	fib_index,
		u32	thread_index,
		nat_protocol_t	proto,
		ip4_address_t *	addr,
		u16 *	port,
		u16	port_per_thread,
		u32	snat_thread_index
	)

Definition at line 315 of file nat44_ed_out2in.c.

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nat44_ed_out2in_fast_path_node_fn_inline()

static uword nat44_ed_out2in_fast_path_node_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_multi_worker  )

inlinestatic

Definition at line 797 of file nat44_ed_out2in.c.

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nat44_ed_out2in_node()

VLIB_NODE_FN() nat44_ed_out2in_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1388 of file nat44_ed_out2in.c.

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nat44_ed_out2in_slow_path_node_fn_inline()

static uword nat44_ed_out2in_slow_path_node_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

inlinestatic

Definition at line 1114 of file nat44_ed_out2in.c.

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nat44_ed_out2in_slowpath_node()

VLIB_NODE_FN() nat44_ed_out2in_slowpath_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1415 of file nat44_ed_out2in.c.

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nat44_ed_out2in_slowpath_unknown_proto()

static snat_session_t* nat44_ed_out2in_slowpath_unknown_proto ( snat_main_t *  sm, vlib_buffer_t *  b, ip4_header_t *  ip, u32  rx_fib_index, u32  thread_index, f64  now, vlib_main_t *  vm, vlib_node_runtime_t *  node  )

static

Definition at line 718 of file nat44_ed_out2in.c.

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nat_alloc_addr_and_port_exact()

static_always_inline int nat_alloc_addr_and_port_exact	(	snat_address_t *	a,
		u32	thread_index,
		nat_protocol_t	proto,
		ip4_address_t *	addr,
		u16 *	port,
		u16	port_per_thread,
		u32	snat_thread_index
	)

Definition at line 271 of file nat44_ed_out2in.c.

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nat_pre_out2in_node()

VLIB_NODE_FN() nat_pre_out2in_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1445 of file nat44_ed_out2in.c.

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next_src_nat()

static int next_src_nat ( snat_main_t *  sm, ip4_header_t *  ip, u16  src_port, u16  dst_port, u32  thread_index, u32  rx_fib_index  )

static

Definition at line 125 of file nat44_ed_out2in.c.

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Variable Documentation

nat44_ed_out2in_node

vlib_node_registration_t nat44_ed_out2in_node

Initial value:

= {
  .name = "nat44-ed-out2in",
  .vector_size = sizeof (u32),
  .sibling_of = "nat-default",
  .format_trace = format_nat44_ed_out2in_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
  .error_strings = nat_out2in_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_out2in_node)

Definition at line 1403 of file nat44_ed_out2in.c.

nat44_ed_out2in_slowpath_node

vlib_node_registration_t nat44_ed_out2in_slowpath_node

Initial value:

= {
  .name = "nat44-ed-out2in-slowpath",
  .vector_size = sizeof (u32),
  .sibling_of = "nat-default",
  .format_trace = format_nat44_ed_out2in_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat_out2in_ed_error_strings),
  .error_strings = nat_out2in_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_out2in_slowpath_node)

Definition at line 1423 of file nat44_ed_out2in.c.

nat_out2in_ed_error_strings

char* nat_out2in_ed_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_nat_out2in_ed_error

}

Definition at line 34 of file nat44_ed_out2in.c.

nat_pre_out2in_node

vlib_node_registration_t nat_pre_out2in_node

Initial value:

= {
  .name = "nat-pre-out2in",
  .vector_size = sizeof (u32),
  .sibling_of = "nat-default",
  .format_trace = format_nat_pre_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = 0,
 }

(constructor) VLIB_REGISTER_NODE (nat_pre_out2in_node)

Definition at line 1454 of file nat44_ed_out2in.c.