nat_inlines.h File Reference

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Functions
static uword	nat_pre_node_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, u32 def_next)
	The NAT inline functions. More...
static u8	is_interface_addr (snat_main_t *sm, vlib_node_runtime_t *node, u32 sw_if_index0, u32 ip4_addr)
static u8	maximum_sessions_exceeded (snat_main_t *sm, u32 thread_index)
static void	nat_send_all_to_node (vlib_main_t *vm, u32 *bi_vector, vlib_node_runtime_t *node, vlib_error_t *error, u32 next)
static void	user_session_increment (snat_main_t *sm, snat_user_t *u, u8 is_static)
static void	nat44_delete_user_with_no_session (snat_main_t *sm, snat_user_t *u, u32 thread_index)
static void	nat44_delete_session (snat_main_t *sm, snat_session_t *ses, u32 thread_index)
static int	nat44_set_tcp_session_state_i2o (snat_main_t *sm, f64 now, snat_session_t *ses, vlib_buffer_t *b, u32 thread_index)
	Set TCP session state. More...
static int	nat44_set_tcp_session_state_o2i (snat_main_t *sm, f64 now, snat_session_t *ses, u8 tcp_flags, u32 tcp_ack_number, u32 tcp_seq_number, u32 thread_index)
static u32	nat44_session_get_timeout (snat_main_t *sm, snat_session_t *s)
static void	nat44_session_update_counters (snat_session_t *s, f64 now, uword bytes, u32 thread_index)
static void	nat44_session_update_lru (snat_main_t *sm, snat_session_t *s, u32 thread_index)
	Per-user LRU list maintenance. More...
static void	make_ed_kv (ip4_address_t *l_addr, ip4_address_t *r_addr, u8 proto, u32 fib_index, u16 l_port, u16 r_port, u64 value, clib_bihash_kv_16_8_t *kv)
static void	split_ed_kv (clib_bihash_kv_16_8_t *kv, ip4_address_t *l_addr, ip4_address_t *r_addr, u8 *proto, u32 *fib_index, u16 *l_port, u16 *r_port)
static void	make_sm_kv (clib_bihash_kv_8_8_t *kv, ip4_address_t *addr, u8 proto, u32 fib_index, u16 port)
static_always_inline int	get_icmp_i2o_ed_key (vlib_buffer_t *b, ip4_header_t *ip0, u32 rx_fib_index, u64 value, u8 *nat_proto, u16 *l_port, u16 *r_port, clib_bihash_kv_16_8_t *kv)
static_always_inline int	get_icmp_o2i_ed_key (vlib_buffer_t *b, ip4_header_t *ip0, u32 rx_fib_index, u64 value, u8 *nat_proto, u16 *l_port, u16 *r_port, clib_bihash_kv_16_8_t *kv)
static void	mss_clamping (snat_main_t *sm, tcp_header_t *tcp, ip_csum_t *sum)
static int	snat_not_translate_fast (snat_main_t *sm, vlib_node_runtime_t *node, u32 sw_if_index0, ip4_header_t *ip0, u32 proto0, u32 rx_fib_index0)
	Check if packet should be translated. More...
static void	increment_v4_address (ip4_address_t *a)

Function Documentation

get_icmp_i2o_ed_key()

static_always_inline int get_icmp_i2o_ed_key	(	vlib_buffer_t *	b,
		ip4_header_t *	ip0,
		u32	rx_fib_index,
		u64	value,
		u8 *	nat_proto,
		u16 *	l_port,
		u16 *	r_port,
		clib_bihash_kv_16_8_t *	kv
	)

Definition at line 499 of file nat_inlines.h.

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get_icmp_o2i_ed_key()

static_always_inline int get_icmp_o2i_ed_key	(	vlib_buffer_t *	b,
		ip4_header_t *	ip0,
		u32	rx_fib_index,
		u64	value,
		u8 *	nat_proto,
		u16 *	l_port,
		u16 *	r_port,
		clib_bihash_kv_16_8_t *	kv
	)

Definition at line 568 of file nat_inlines.h.

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increment_v4_address()

static void increment_v4_address ( ip4_address_t *  a )

inlinestatic

Definition at line 755 of file nat_inlines.h.

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is_interface_addr()

static u8 is_interface_addr ( snat_main_t *  sm, vlib_node_runtime_t *  node, u32  sw_if_index0, u32  ip4_addr  )

inlinestatic

Definition at line 150 of file nat_inlines.h.

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make_ed_kv()

static void make_ed_kv ( ip4_address_t *  l_addr, ip4_address_t *  r_addr, u8  proto, u32  fib_index, u16  l_port, u16  r_port, u64  value, clib_bihash_kv_16_8_t *  kv  )

inlinestatic

Definition at line 447 of file nat_inlines.h.

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make_sm_kv()

static void make_sm_kv ( clib_bihash_kv_8_8_t *  kv, ip4_address_t *  addr, u8  proto, u32  fib_index, u16  port  )

inlinestatic

Definition at line 489 of file nat_inlines.h.

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maximum_sessions_exceeded()

static u8 maximum_sessions_exceeded ( snat_main_t *  sm, u32  thread_index  )

inlinestatic

Definition at line 175 of file nat_inlines.h.

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mss_clamping()

static void mss_clamping ( snat_main_t *  sm, tcp_header_t *  tcp, ip_csum_t *  sum  )

inlinestatic

Definition at line 635 of file nat_inlines.h.

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nat44_delete_session()

static void nat44_delete_session ( snat_main_t *  sm, snat_session_t *  ses, u32  thread_index  )

inlinestatic

Definition at line 249 of file nat_inlines.h.

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nat44_delete_user_with_no_session()

static void nat44_delete_user_with_no_session ( snat_main_t *  sm, snat_user_t *  u, u32  thread_index  )

inlinestatic

Definition at line 227 of file nat_inlines.h.

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nat44_session_get_timeout()

static u32 nat44_session_get_timeout ( snat_main_t *  sm, snat_session_t *  s  )

inlinestatic

Definition at line 385 of file nat_inlines.h.

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nat44_session_update_counters()

static void nat44_session_update_counters ( snat_session_t *  s, f64  now, uword  bytes, u32  thread_index  )

inlinestatic

Definition at line 408 of file nat_inlines.h.

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nat44_session_update_lru()

static void nat44_session_update_lru ( snat_main_t *  sm, snat_session_t *  s, u32  thread_index  )

inlinestatic

Per-user LRU list maintenance.

Definition at line 422 of file nat_inlines.h.

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nat44_set_tcp_session_state_i2o()

static int nat44_set_tcp_session_state_i2o ( snat_main_t *  sm, f64  now, snat_session_t *  ses, vlib_buffer_t *  b, u32  thread_index  )

inlinestatic

Set TCP session state.

Returns

1 if session was closed, otherwise 0

Definition at line 290 of file nat_inlines.h.

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nat44_set_tcp_session_state_o2i()

static int nat44_set_tcp_session_state_o2i ( snat_main_t *  sm, f64  now, snat_session_t *  ses, u8  tcp_flags, u32  tcp_ack_number, u32  tcp_seq_number, u32  thread_index  )

inlinestatic

Definition at line 340 of file nat_inlines.h.

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nat_pre_node_fn_inline()

static uword nat_pre_node_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, u32  def_next  )

inlinestatic

The NAT inline functions.

Definition at line 27 of file nat_inlines.h.

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nat_send_all_to_node()

static void nat_send_all_to_node ( vlib_main_t *  vm, u32 *  bi_vector, vlib_node_runtime_t *  node, vlib_error_t *  error, u32  next  )

inlinestatic

Definition at line 185 of file nat_inlines.h.

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snat_not_translate_fast()

static int snat_not_translate_fast ( snat_main_t *  sm, vlib_node_runtime_t *  node, u32  sw_if_index0, ip4_header_t *  ip0, u32  proto0, u32  rx_fib_index0  )

inlinestatic

Check if packet should be translated.

Packets aimed at outside interface and external address with active session should be translated.

Parameters

sm	NAT main
rt	NAT runtime data
sw_if_index0	index of the inside interface
ip0	IPv4 header
proto0	NAT protocol
rx_fib_index0	RX FIB index

Returns

0 if packet should be translated otherwise 1

Definition at line 698 of file nat_inlines.h.

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split_ed_kv()

static void split_ed_kv ( clib_bihash_kv_16_8_t *  kv, ip4_address_t *  l_addr, ip4_address_t *  r_addr, u8 *  proto, u32 *  fib_index, u16 *  l_port, u16 *  r_port  )

inlinestatic

Definition at line 458 of file nat_inlines.h.

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user_session_increment()

static void user_session_increment ( snat_main_t *  sm, snat_user_t *  u, u8  is_static  )

inlinestatic

Definition at line 215 of file nat_inlines.h.

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