Include dependency graph for out2in.c:

Data Structures
struct	snat_out2in_trace_t

struct	snat_out2in_worker_handoff_trace_t

struct	nat44_out2in_reass_trace_t

Macros
#define	foreach_snat_out2in_error

Enumerations
enum	snat_out2in_error_t { SNAT_OUT2IN_N_ERROR }

enum	snat_out2in_next_t { SNAT_OUT2IN_NEXT_DROP, SNAT_OUT2IN_NEXT_LOOKUP, SNAT_OUT2IN_NEXT_ICMP_ERROR, SNAT_OUT2IN_NEXT_REASS, SNAT_OUT2IN_NEXT_IN2OUT, SNAT_OUT2IN_N_NEXT }

Functions
static u8 *	format_snat_out2in_trace (u8 s, va_list args)

static u8 *	format_snat_out2in_fast_trace (u8 s, va_list args)

static u8 *	format_snat_out2in_worker_handoff_trace (u8 s, va_list args)

static u8 *	format_nat44_out2in_reass_trace (u8 s, va_list args)

static snat_session_t *	create_session_for_static_mapping (snat_main_t sm, vlib_buffer_t b0, snat_session_key_t in2out, snat_session_key_t out2in, vlib_node_runtime_t *node, u32 thread_index)
	Create session for static mapping. More...

static_always_inline snat_out2in_error_t	icmp_get_key (ip4_header_t ip0, snat_session_key_t p_key0)

static_always_inline int	icmp_get_ed_key (ip4_header_t ip0, nat_ed_ses_key_t p_key0)

static int	next_src_nat (snat_main_t sm, ip4_header_t ip, u32 proto, u16 src_port, u32 thread_index)

static void	create_bypass_for_fwd (snat_main_t sm, ip4_header_t ip)

u32	icmp_match_out2in_slow (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...

u32	icmp_match_out2in_fast (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. More...

static u32	icmp_out2in (snat_main_t sm, vlib_buffer_t b0, ip4_header_t ip0, icmp46_header_t icmp0, u32 sw_if_index0, u32 rx_fib_index0, vlib_node_runtime_t node, u32 next0, u32 thread_index, void d, void *e)

static u32	icmp_out2in_slow_path (snat_main_t sm, vlib_buffer_t b0, ip4_header_t ip0, icmp46_header_t icmp0, u32 sw_if_index0, u32 rx_fib_index0, vlib_node_runtime_t node, u32 next0, f64 now, u32 thread_index, snat_session_t *p_s0)

static snat_session_t *	snat_out2in_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 snat_session_t *	snat_out2in_lb (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	snat_out2in_node_fn (vlib_main_t vm, vlib_node_runtime_t node, vlib_frame_t *frame)

	VLIB_NODE_FUNCTION_MULTIARCH (snat_out2in_node, snat_out2in_node_fn)

static uword	nat44_out2in_reass_node_fn (vlib_main_t vm, vlib_node_runtime_t node, vlib_frame_t *frame)

	VLIB_NODE_FUNCTION_MULTIARCH (nat44_out2in_reass_node, nat44_out2in_reass_node_fn)

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)

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_out2in_worker_handoff_fn (vlib_main_t vm, vlib_node_runtime_t node, vlib_frame_t *frame)

	VLIB_NODE_FUNCTION_MULTIARCH (snat_out2in_worker_handoff_node, snat_out2in_worker_handoff_fn)

static uword	snat_out2in_fast_node_fn (vlib_main_t vm, vlib_node_runtime_t node, vlib_frame_t *frame)

	VLIB_NODE_FUNCTION_MULTIARCH (snat_out2in_fast_node, snat_out2in_fast_node_fn)

Variables
vlib_node_registration_t	snat_out2in_node
	(constructor) VLIB_REGISTER_NODE (snat_out2in_node) More...

vlib_node_registration_t	snat_out2in_fast_node
	(constructor) VLIB_REGISTER_NODE (snat_out2in_fast_node) More...

vlib_node_registration_t	snat_out2in_worker_handoff_node
	(constructor) VLIB_REGISTER_NODE (snat_out2in_worker_handoff_node) More...

vlib_node_registration_t	snat_det_out2in_node
	(constructor) VLIB_REGISTER_NODE (snat_det_out2in_node) More...

vlib_node_registration_t	nat44_out2in_reass_node
	(constructor) VLIB_REGISTER_NODE (nat44_out2in_reass_node) More...

static char *	snat_out2in_error_strings []

Macro Definition Documentation

#define foreach_snat_out2in_error

Value:

_(UNSUPPORTED_PROTOCOL, "Unsupported protocol")         \
_(OUT2IN_PACKETS, "Good out2in packets processed")      \
_(OUT_OF_PORTS, "Out of ports")                         \
_(BAD_ICMP_TYPE, "unsupported ICMP type")               \
_(NO_TRANSLATION, "No translation")                     \
_(MAX_SESSIONS_EXCEEDED, "Maximum sessions exceeded")   \
_(DROP_FRAGMENT, "Drop fragment")                       \
_(MAX_REASS, "Maximum reassemblies exceeded")           \
_(MAX_FRAG, "Maximum fragments per reassembly exceeded")

Definition at line 107 of file out2in.c.

Enumeration Type Documentation

enum snat_out2in_error_t

Enumerator
SNAT_OUT2IN_N_ERROR

Definition at line 118 of file out2in.c.

enum snat_out2in_next_t

Enumerator
SNAT_OUT2IN_NEXT_DROP
SNAT_OUT2IN_NEXT_LOOKUP
SNAT_OUT2IN_NEXT_ICMP_ERROR
SNAT_OUT2IN_NEXT_REASS
SNAT_OUT2IN_NEXT_IN2OUT
SNAT_OUT2IN_N_NEXT

Definition at line 131 of file out2in.c.

Function Documentation

static void create_bypass_for_fwd	(	snat_main_t *	sm,
		ip4_header_t *	ip
	)

static

Definition at line 336 of file out2in.c.

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static snat_session_t* create_session_for_static_mapping	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		snat_session_key_t	in2out,
		snat_session_key_t	out2in,
		vlib_node_runtime_t *	node,
		u32	thread_index
	)

inlinestatic

Create session for static mapping.

Create NAT session initiated by host from external network with static mapping.

Parameters

sm	NAT main.
b0	Vlib buffer.
in2out	In2out NAT44 session key.
out2in	Out2in NAT44 session key.
node	Vlib node.

Returns: SNAT session if successfully created otherwise 0.

Definition at line 155 of file out2in.c.

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static u8* format_nat44_out2in_reass_trace	(	u8 *	s,
		va_list *	args
	)

static

Definition at line 88 of file out2in.c.

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static u8* format_snat_out2in_fast_trace	(	u8 *	s,
		va_list *	args
	)

static

Definition at line 57 of file out2in.c.

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static u8* format_snat_out2in_trace	(	u8 *	s,
		va_list *	args
	)

static

Definition at line 46 of file out2in.c.

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static u8* format_snat_out2in_worker_handoff_trace	(	u8 *	s,
		va_list *	args
	)

static

Definition at line 68 of file out2in.c.

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static_always_inline int icmp_get_ed_key	(	ip4_header_t *	ip0,
		nat_ed_ses_key_t *	p_key0
	)

Definition at line 269 of file out2in.c.

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static_always_inline snat_out2in_error_t icmp_get_key	(	ip4_header_t *	ip0,
		snat_session_key_t *	p_key0
	)

Definition at line 224 of file out2in.c.

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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 2514 of file out2in.c.

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u32 icmp_match_out2in_fast	(	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.

Parameters

[in]	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 536 of file out2in.c.

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u32 icmp_match_out2in_slow	(	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 386 of file out2in.c.

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static u32 icmp_out2in	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		icmp46_header_t *	icmp0,
		u32	sw_if_index0,
		u32	rx_fib_index0,
		vlib_node_runtime_t *	node,
		u32	next0,
		u32	thread_index,
		void *	d,
		void *	e
	)

inlinestatic

Definition at line 595 of file out2in.c.

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static u32 icmp_out2in_slow_path	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		icmp46_header_t *	icmp0,
		u32	sw_if_index0,
		u32	rx_fib_index0,
		vlib_node_runtime_t *	node,
		u32	next0,
		f64	now,
		u32	thread_index,
		snat_session_t **	p_s0
	)

inlinestatic

Definition at line 721 of file out2in.c.

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static uword nat44_out2in_reass_node_fn	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

static

Definition at line 1714 of file out2in.c.

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

static

Definition at line 316 of file out2in.c.

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

static

Definition at line 2015 of file out2in.c.

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static uword snat_out2in_fast_node_fn	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

static

Definition at line 2803 of file out2in.c.

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static snat_session_t* snat_out2in_lb	(	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 871 of file out2in.c.

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static uword snat_out2in_node_fn	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

static

Definition at line 1038 of file out2in.c.

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static snat_session_t* snat_out2in_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 752 of file out2in.c.

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static uword snat_out2in_worker_handoff_fn	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

static

Definition at line 2643 of file out2in.c.

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VLIB_NODE_FUNCTION_MULTIARCH	(	snat_out2in_node	,
		snat_out2in_node_fn
	)

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VLIB_NODE_FUNCTION_MULTIARCH	(	nat44_out2in_reass_node	,
		nat44_out2in_reass_node_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_det_out2in_node	,
		snat_det_out2in_node_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_out2in_worker_handoff_node	,
		snat_out2in_worker_handoff_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_out2in_fast_node	,
		snat_out2in_fast_node_fn
	)

Variable Documentation

vlib_node_registration_t nat44_out2in_reass_node

Initial value:

= {
  .function = nat44_out2in_reass_node_fn,
  .name = "nat44-out2in-reass",
  .vector_size = sizeof (u32),
  .format_trace = format_nat44_out2in_reass_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(snat_out2in_error_strings),
  .error_strings = snat_out2in_error_strings,
  .n_next_nodes = SNAT_OUT2IN_N_NEXT,
  
  .next_nodes = {
    [SNAT_OUT2IN_NEXT_DROP] = "error-drop",
    [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
    [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [SNAT_OUT2IN_NEXT_REASS] = "nat44-out2in-reass",
    [SNAT_OUT2IN_NEXT_IN2OUT] = "nat44-in2out",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_out2in_reass_node)

Definition at line 105 of file out2in.c.

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_snat_out2in_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(snat_out2in_error_strings),
  .error_strings = snat_out2in_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = SNAT_OUT2IN_N_NEXT,
  
  .next_nodes = {
    [SNAT_OUT2IN_NEXT_DROP] = "error-drop",
    [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
    [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [SNAT_OUT2IN_NEXT_REASS] = "nat44-out2in-reass",
    [SNAT_OUT2IN_NEXT_IN2OUT] = "nat44-in2out",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_det_out2in_node)

Definition at line 104 of file out2in.c.

char* snat_out2in_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_snat_out2in_error
}

Definition at line 125 of file out2in.c.

vlib_node_registration_t snat_out2in_fast_node

Initial value:

= {
  .function = snat_out2in_fast_node_fn,
  .name = "nat44-out2in-fast",
  .vector_size = sizeof (u32),
  .format_trace = format_snat_out2in_fast_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(snat_out2in_error_strings),
  .error_strings = snat_out2in_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = SNAT_OUT2IN_N_NEXT,
  
  .next_nodes = {
    [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
    [SNAT_OUT2IN_NEXT_DROP] = "error-drop",
    [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [SNAT_OUT2IN_NEXT_REASS] = "nat44-out2in-reass",
    [SNAT_OUT2IN_NEXT_IN2OUT] = "nat44-in2out",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_out2in_fast_node)

Definition at line 102 of file out2in.c.

vlib_node_registration_t snat_out2in_node

Initial value:

= {
  .function = snat_out2in_node_fn,
  .name = "nat44-out2in",
  .vector_size = sizeof (u32),
  .format_trace = format_snat_out2in_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(snat_out2in_error_strings),
  .error_strings = snat_out2in_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = SNAT_OUT2IN_N_NEXT,
  
  .next_nodes = {
    [SNAT_OUT2IN_NEXT_DROP] = "error-drop",
    [SNAT_OUT2IN_NEXT_LOOKUP] = "ip4-lookup",
    [SNAT_OUT2IN_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [SNAT_OUT2IN_NEXT_REASS] = "nat44-out2in-reass",
    [SNAT_OUT2IN_NEXT_IN2OUT] = "nat44-in2out",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_out2in_node)

Definition at line 101 of file out2in.c.

vlib_node_registration_t snat_out2in_worker_handoff_node

Initial value:

= {
  .function = snat_out2in_worker_handoff_fn,
  .name = "nat44-out2in-worker-handoff",
  .vector_size = sizeof (u32),
  .format_trace = format_snat_out2in_worker_handoff_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_next_nodes = 1,
  .next_nodes = {
    [0] = "error-drop",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_out2in_worker_handoff_node)

Definition at line 103 of file out2in.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation