in2out_ed.c File Reference

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

Include dependency graph for in2out_ed.c:

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Data Structures
struct	nat_in2out_ed_trace_t

Macros
#define	foreach_nat_in2out_ed_error

Enumerations
enum	nat_in2out_ed_error_t { NAT_IN2OUT_ED_N_ERROR }
enum	nat_in2out_ed_next_t {   NAT_IN2OUT_ED_NEXT_LOOKUP, NAT_IN2OUT_ED_NEXT_DROP, NAT_IN2OUT_ED_NEXT_ICMP_ERROR, NAT_IN2OUT_ED_NEXT_SLOW_PATH,   NAT_IN2OUT_ED_NEXT_REASS, NAT_IN2OUT_ED_N_NEXT }

Functions
static u8 *	format_nat_in2out_ed_trace (u8 *s, va_list *args)
static_always_inline int	icmp_get_ed_key (ip4_header_t *ip0, nat_ed_ses_key_t *p_key0)
int	nat44_i2o_ed_is_idle_session_cb (clib_bihash_kv_16_8_t *kv, void *arg)
static u32	icmp_in2out_ed_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 u32	slow_path_ed (snat_main_t *sm, vlib_buffer_t *b, u32 rx_fib_index, clib_bihash_kv_16_8_t *kv, snat_session_t **sessionp, vlib_node_runtime_t *node, u32 next, u32 thread_index, f64 now, tcp_header_t *tcp)
static_always_inline int	nat44_ed_not_translate (snat_main_t *sm, vlib_node_runtime_t *node, u32 sw_if_index, ip4_header_t *ip, u32 proto, u32 rx_fib_index, u32 thread_index)
static_always_inline int	nat_not_translate_output_feature_fwd (snat_main_t *sm, ip4_header_t *ip, u32 thread_index, f64 now, vlib_main_t *vm, vlib_buffer_t *b)
static_always_inline int	nat44_ed_not_translate_output_feature (snat_main_t *sm, ip4_header_t *ip, u8 proto, u16 src_port, u16 dst_port, u32 thread_index, u32 rx_sw_if_index, u32 tx_sw_if_index)
u32	icmp_match_in2out_ed (snat_main_t *sm, vlib_node_runtime_t *node, u32 thread_index, vlib_buffer_t *b, ip4_header_t *ip, u8 *p_proto, snat_session_key_t *p_value, u8 *p_dont_translate, void *d, void *e)
static snat_session_t *	nat44_ed_in2out_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_in2out_node_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_slow_path, int is_output_feature)
VLIB_NODE_FN()	nat44_ed_in2out_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_in2out_output_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_in2out_slowpath_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_in2out_output_slowpath_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static uword	nat44_ed_in2out_reass_node_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_output_feature)
VLIB_NODE_FN()	nat44_ed_in2out_reass_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
VLIB_NODE_FN()	nat44_ed_in2out_reass_output_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)

Variables
static char *	nat_in2out_ed_error_strings []
vlib_node_registration_t	nat44_ed_in2out_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_node) More...
vlib_node_registration_t	nat44_ed_in2out_output_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_output_node) More...
vlib_node_registration_t	nat44_ed_in2out_slowpath_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_slowpath_node) More...
vlib_node_registration_t	nat44_ed_in2out_output_slowpath_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_output_slowpath_node) More...
vlib_node_registration_t	nat44_ed_in2out_reass_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_reass_node) More...
vlib_node_registration_t	nat44_ed_in2out_reass_output_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_reass_output_node) More...

Detailed Description

NAT44 endpoint-dependent inside to outside network translation.

Definition in file in2out_ed.c.

Macro Definition Documentation

#define foreach_nat_in2out_ed_error

Value:

_(UNSUPPORTED_PROTOCOL, "unsupported protocol")         \
_(IN2OUT_PACKETS, "good in2out packets processed")      \
_(OUT_OF_PORTS, "out of ports")                         \
_(BAD_ICMP_TYPE, "unsupported ICMP type")               \
_(MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded")   \
_(DROP_FRAGMENT, "drop fragment")                       \
_(MAX_REASS, "maximum reassemblies exceeded")           \
_(MAX_FRAG, "maximum fragments per reassembly exceeded")\
_(NON_SYN, "non-SYN packet try to create session")      \
_(TCP_PACKETS, "TCP packets")                           \
_(UDP_PACKETS, "UDP packets")                           \
_(ICMP_PACKETS, "ICMP packets")                         \
_(OTHER_PACKETS, "other protocol packets")              \
_(FRAGMENTS, "fragments")                               \
_(CACHED_FRAGMENTS, "cached fragments")                 \
_(PROCESSED_FRAGMENTS, "processed fragments")

Definition at line 34 of file in2out_ed.c.

Enumeration Type Documentation

enum nat_in2out_ed_error_t

Enumerator
NAT_IN2OUT_ED_N_ERROR

Definition at line 53 of file in2out_ed.c.

enum nat_in2out_ed_next_t

Enumerator
NAT_IN2OUT_ED_NEXT_LOOKUP
NAT_IN2OUT_ED_NEXT_DROP
NAT_IN2OUT_ED_NEXT_ICMP_ERROR
NAT_IN2OUT_ED_NEXT_SLOW_PATH
NAT_IN2OUT_ED_NEXT_REASS
NAT_IN2OUT_ED_N_NEXT

Definition at line 67 of file in2out_ed.c.

Function Documentation

static u8* format_nat_in2out_ed_trace ( u8 *  s, va_list *  args  )

static

Definition at line 86 of file in2out_ed.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 104 of file in2out_ed.c.

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static u32 icmp_in2out_ed_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 249 of file in2out_ed.c.

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u32 icmp_match_in2out_ed	(	snat_main_t *	sm,
		vlib_node_runtime_t *	node,
		u32	thread_index,
		vlib_buffer_t *	b,
		ip4_header_t *	ip,
		u8 *	p_proto,
		snat_session_key_t *	p_value,
		u8 *	p_dont_translate,
		void *	d,
		void *	e
	)

Definition at line 600 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1665 of file in2out_ed.c.

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static uword nat44_ed_in2out_node_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_slow_path, int  is_output_feature  )

inlinestatic

Definition at line 912 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_output_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1692 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_output_slowpath_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1746 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_reass_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 2114 of file in2out_ed.c.

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static uword nat44_ed_in2out_reass_node_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_output_feature  )

inlinestatic

Definition at line 1775 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_reass_output_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 2140 of file in2out_ed.c.

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VLIB_NODE_FN() nat44_ed_in2out_slowpath_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1719 of file in2out_ed.c.

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static snat_session_t* nat44_ed_in2out_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 711 of file in2out_ed.c.

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static_always_inline int nat44_ed_not_translate	(	snat_main_t *	sm,
		vlib_node_runtime_t *	node,
		u32	sw_if_index,
		ip4_header_t *	ip,
		u32	proto,
		u32	rx_fib_index,
		u32	thread_index
	)

Definition at line 449 of file in2out_ed.c.

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static_always_inline int nat44_ed_not_translate_output_feature	(	snat_main_t *	sm,
		ip4_header_t *	ip,
		u8	proto,
		u16	src_port,
		u16	dst_port,
		u32	thread_index,
		u32	rx_sw_if_index,
		u32	tx_sw_if_index
	)

Definition at line 545 of file in2out_ed.c.

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int nat44_i2o_ed_is_idle_session_cb	(	clib_bihash_kv_16_8_t *	kv,
		void *	arg
	)

Definition at line 154 of file in2out_ed.c.

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static_always_inline int nat_not_translate_output_feature_fwd	(	snat_main_t *	sm,
		ip4_header_t *	ip,
		u32	thread_index,
		f64	now,
		vlib_main_t *	vm,
		vlib_buffer_t *	b
	)

Definition at line 484 of file in2out_ed.c.

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static u32 slow_path_ed ( snat_main_t *  sm, vlib_buffer_t *  b, u32  rx_fib_index, clib_bihash_kv_16_8_t *  kv, snat_session_t **  sessionp, vlib_node_runtime_t *  node, u32  next, u32  thread_index, f64  now, tcp_header_t *  tcp  )

static

Definition at line 271 of file in2out_ed.c.

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Variable Documentation

vlib_node_registration_t nat44_ed_in2out_node

Initial value:

= {
  .name = "nat44-ed-in2out",
  .vector_size = sizeof (u32),
  .format_trace = format_nat_in2out_ed_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_node)

Definition at line 1673 of file in2out_ed.c.

vlib_node_registration_t nat44_ed_in2out_output_node

Initial value:

= {
  .name = "nat44-ed-in2out-output",
  .vector_size = sizeof (u32),
  .format_trace = format_nat_in2out_ed_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass-output",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_output_node)

Definition at line 1700 of file in2out_ed.c.

vlib_node_registration_t nat44_ed_in2out_output_slowpath_node

Initial value:

= {
  .name = "nat44-ed-in2out-output-slowpath",
  .vector_size = sizeof (u32),
  .format_trace = format_nat_in2out_ed_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-output-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_output_slowpath_node)

Definition at line 1755 of file in2out_ed.c.

vlib_node_registration_t nat44_ed_in2out_reass_node

Initial value:

= {
  .name = "nat44-ed-in2out-reass",
  .vector_size = sizeof (u32),
  .format_trace = format_nat44_reass_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_reass_node)

Definition at line 2122 of file in2out_ed.c.

vlib_node_registration_t nat44_ed_in2out_reass_output_node

Initial value:

= {
  .name = "nat44-ed-in2out-reass-output",
  .vector_size = sizeof (u32),
  .format_trace = format_nat44_reass_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "interface-output",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-in2out-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_reass_output_node)

Definition at line 2148 of file in2out_ed.c.

vlib_node_registration_t nat44_ed_in2out_slowpath_node

Initial value:

= {
  .name = "nat44-ed-in2out-slowpath",
  .vector_size = sizeof (u32),
  .format_trace = format_nat_in2out_ed_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (nat_in2out_ed_error_strings),
  .error_strings = nat_in2out_ed_error_strings,
  .runtime_data_bytes = sizeof (snat_runtime_t),
  .n_next_nodes = NAT_IN2OUT_ED_N_NEXT,
  .next_nodes = {
    [NAT_IN2OUT_ED_NEXT_DROP] = "error-drop",
    [NAT_IN2OUT_ED_NEXT_LOOKUP] = "ip4-lookup",
    [NAT_IN2OUT_ED_NEXT_SLOW_PATH] = "nat44-ed-in2out-slowpath",
    [NAT_IN2OUT_ED_NEXT_ICMP_ERROR] = "ip4-icmp-error",
    [NAT_IN2OUT_ED_NEXT_REASS] = "nat44-ed-in2out-reass",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_in2out_slowpath_node)

Definition at line 1727 of file in2out_ed.c.

char* nat_in2out_ed_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_nat_in2out_ed_error

}

Definition at line 61 of file in2out_ed.c.