nat44_hairpinning.c File Reference

NAT44 hairpinning. More...

Include dependency graph for nat44_hairpinning.c:

Go to the source code of this file.

Macros
#define	foreach_nat44_hairpin_error   _(PROCESSED, "NAT44 hairpinning packets processed")

Enumerations
enum	snat_hairpin_src_next_t {   SNAT_HAIRPIN_SRC_NEXT_DROP, SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT, SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH, SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT,   SNAT_HAIRPIN_SRC_N_NEXT }
enum	nat_hairpin_next_t { NAT_HAIRPIN_NEXT_LOOKUP, NAT_HAIRPIN_NEXT_DROP, NAT_HAIRPIN_N_NEXT }
enum	nat44_hairpin_error_t { NAT44_HAIRPIN_N_ERROR }

Functions
static_always_inline int	is_hairpinning (snat_main_t *sm, ip4_address_t *dst_addr)
int	snat_hairpinning (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, udp_header_t *udp0, tcp_header_t *tcp0, u32 proto0, int is_ed)
u32	snat_icmp_hairpinning (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, icmp46_header_t *icmp0, int is_ed)
void	nat_hairpinning_sm_unknown_proto (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip)
void	nat44_ed_hairpinning_unknown_proto (snat_main_t *sm, vlib_buffer_t *b, ip4_header_t *ip)
void	nat44_reass_hairpinning (snat_main_t *sm, vlib_buffer_t *b0, ip4_header_t *ip0, u16 sport, u16 dport, u32 proto0, int is_ed)
static uword	nat44_hairpinning_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_ed)
static uword	nat44_hairpinning_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (nat44_hairpinning_node, nat44_hairpinning_fn)
static uword	nat44_ed_hairpinning_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_hairpinning_node, nat44_ed_hairpinning_fn)
static uword	snat_hairpin_dst_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_ed)
static uword	snat_hairpin_dst_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (snat_hairpin_dst_node, snat_hairpin_dst_fn)
static uword	nat44_ed_hairpin_dst_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_hairpin_dst_node, nat44_ed_hairpin_dst_fn)
static uword	snat_hairpin_src_fn_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame, int is_ed)
static uword	snat_hairpin_src_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (snat_hairpin_src_node, snat_hairpin_src_fn)
static uword	nat44_ed_hairpin_src_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	VLIB_NODE_FUNCTION_MULTIARCH (nat44_ed_hairpin_src_node, nat44_ed_hairpin_src_fn)

Variables
static char *	nat44_hairpin_error_strings []
vlib_node_registration_t	snat_hairpin_dst_node
	(constructor) VLIB_REGISTER_NODE (snat_hairpin_dst_node) More...
vlib_node_registration_t	snat_hairpin_src_node
	(constructor) VLIB_REGISTER_NODE (snat_hairpin_src_node) More...
vlib_node_registration_t	nat44_hairpinning_node
	(constructor) VLIB_REGISTER_NODE (nat44_hairpinning_node) More...
vlib_node_registration_t	nat44_ed_hairpin_dst_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpin_dst_node) More...
vlib_node_registration_t	nat44_ed_hairpin_src_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpin_src_node) More...
vlib_node_registration_t	nat44_ed_hairpinning_node
	(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpinning_node) More...
vnet_feature_arc_registration_t	vnet_feat_arc_ip4_local

Detailed Description

NAT44 hairpinning.

Definition in file nat44_hairpinning.c.

Macro Definition Documentation

foreach_nat44_hairpin_error

#define foreach_nat44_hairpin_error   _(PROCESSED, "NAT44 hairpinning packets processed")

Definition at line 43 of file nat44_hairpinning.c.

Enumeration Type Documentation

nat44_hairpin_error_t

enum nat44_hairpin_error_t

Enumerator
NAT44_HAIRPIN_N_ERROR

Definition at line 46 of file nat44_hairpinning.c.

nat_hairpin_next_t

enum nat_hairpin_next_t

Enumerator
NAT_HAIRPIN_NEXT_LOOKUP
NAT_HAIRPIN_NEXT_DROP
NAT_HAIRPIN_N_NEXT

Definition at line 36 of file nat44_hairpinning.c.

snat_hairpin_src_next_t

enum snat_hairpin_src_next_t

Enumerator
SNAT_HAIRPIN_SRC_NEXT_DROP
SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT
SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH
SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT
SNAT_HAIRPIN_SRC_N_NEXT

Definition at line 27 of file nat44_hairpinning.c.

Function Documentation

is_hairpinning()

static_always_inline int is_hairpinning	(	snat_main_t *	sm,
		ip4_address_t *	dst_addr
	)

Definition at line 70 of file nat44_hairpinning.c.

Here is the caller graph for this function:

nat44_ed_hairpin_dst_fn()

static uword nat44_ed_hairpin_dst_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 774 of file nat44_hairpinning.c.

Here is the call graph for this function:

nat44_ed_hairpin_src_fn()

static uword nat44_ed_hairpin_src_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 905 of file nat44_hairpinning.c.

Here is the call graph for this function:

nat44_ed_hairpinning_fn()

static uword nat44_ed_hairpinning_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 635 of file nat44_hairpinning.c.

Here is the call graph for this function:

nat44_ed_hairpinning_unknown_proto()

void nat44_ed_hairpinning_unknown_proto	(	snat_main_t *	sm,
		vlib_buffer_t *	b,
		ip4_header_t *	ip
	)

Definition at line 382 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

nat44_hairpinning_fn()

static uword nat44_hairpinning_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Definition at line 610 of file nat44_hairpinning.c.

Here is the call graph for this function:

nat44_hairpinning_fn_inline()

static uword nat44_hairpinning_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_ed  )

inlinestatic

Definition at line 538 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

nat44_reass_hairpinning()

void nat44_reass_hairpinning	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		u16	sport,
		u16	dport,
		u32	proto0,
		int	is_ed
	)

Definition at line 427 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

nat_hairpinning_sm_unknown_proto()

void nat_hairpinning_sm_unknown_proto	(	snat_main_t *	sm,
		vlib_buffer_t *	b,
		ip4_header_t *	ip
	)

Definition at line 357 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

snat_hairpin_dst_fn()

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

static

Definition at line 749 of file nat44_hairpinning.c.

Here is the call graph for this function:

snat_hairpin_dst_fn_inline()

static uword snat_hairpin_dst_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_ed  )

inlinestatic

Definition at line 661 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

snat_hairpin_src_fn()

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

static

Definition at line 878 of file nat44_hairpinning.c.

Here is the call graph for this function:

snat_hairpin_src_fn_inline()

static uword snat_hairpin_src_fn_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame, int  is_ed  )

inlinestatic

Definition at line 800 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

snat_hairpinning()

int snat_hairpinning	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		udp_header_t *	udp0,
		tcp_header_t *	tcp0,
		u32	proto0,
		int	is_ed
	)

Definition at line 96 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

snat_icmp_hairpinning()

u32 snat_icmp_hairpinning	(	snat_main_t *	sm,
		vlib_buffer_t *	b0,
		ip4_header_t *	ip0,
		icmp46_header_t *	icmp0,
		int	is_ed
	)

Definition at line 203 of file nat44_hairpinning.c.

Here is the call graph for this function:

Here is the caller graph for this function:

VLIB_NODE_FUNCTION_MULTIARCH() [1/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	nat44_hairpinning_node	,
		nat44_hairpinning_fn
	)

Here is the caller graph for this function:

VLIB_NODE_FUNCTION_MULTIARCH() [2/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	nat44_ed_hairpinning_node	,
		nat44_ed_hairpinning_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH() [3/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_hairpin_dst_node	,
		snat_hairpin_dst_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH() [4/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	nat44_ed_hairpin_dst_node	,
		nat44_ed_hairpin_dst_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH() [5/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	snat_hairpin_src_node	,
		snat_hairpin_src_fn
	)

VLIB_NODE_FUNCTION_MULTIARCH() [6/6]

VLIB_NODE_FUNCTION_MULTIARCH	(	nat44_ed_hairpin_src_node	,
		nat44_ed_hairpin_src_fn
	)

Variable Documentation

nat44_ed_hairpin_dst_node

vlib_node_registration_t nat44_ed_hairpin_dst_node

Initial value:

= {
  .function = nat44_ed_hairpin_dst_fn,
  .name = "nat44-ed-hairpin-dst",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = NAT_HAIRPIN_N_NEXT,
  .next_nodes = {
    [NAT_HAIRPIN_NEXT_DROP] = "error-drop",
    [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpin_dst_node)

Definition at line 63 of file nat44_hairpinning.c.

nat44_ed_hairpin_src_node

vlib_node_registration_t nat44_ed_hairpin_src_node

Initial value:

= {
  .function = nat44_ed_hairpin_src_fn,
  .name = "nat44-ed-hairpin-src",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = SNAT_HAIRPIN_SRC_N_NEXT,
  .next_nodes = {
     [SNAT_HAIRPIN_SRC_NEXT_DROP] = "error-drop",
     [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT] = "nat44-ed-in2out-output",
     [SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT] = "interface-output",
     [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH] = "nat44-in2out-output-worker-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpin_src_node)

Definition at line 64 of file nat44_hairpinning.c.

nat44_ed_hairpinning_node

vlib_node_registration_t nat44_ed_hairpinning_node

Initial value:

= {
  .function = nat44_ed_hairpinning_fn,
  .name = "nat44-ed-hairpinning",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = NAT_HAIRPIN_N_NEXT,
  .next_nodes = {
    [NAT_HAIRPIN_NEXT_DROP] = "error-drop",
    [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_ed_hairpinning_node)

Definition at line 65 of file nat44_hairpinning.c.

nat44_hairpin_error_strings

char* nat44_hairpin_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_nat44_hairpin_error

}

Definition at line 54 of file nat44_hairpinning.c.

nat44_hairpinning_node

vlib_node_registration_t nat44_hairpinning_node

Initial value:

= {
  .function = nat44_hairpinning_fn,
  .name = "nat44-hairpinning",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = NAT_HAIRPIN_N_NEXT,
  .next_nodes = {
    [NAT_HAIRPIN_NEXT_DROP] = "error-drop",
    [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup",
  },
}

(constructor) VLIB_REGISTER_NODE (nat44_hairpinning_node)

Definition at line 62 of file nat44_hairpinning.c.

snat_hairpin_dst_node

vlib_node_registration_t snat_hairpin_dst_node

Initial value:

= {
  .function = snat_hairpin_dst_fn,
  .name = "nat44-hairpin-dst",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = NAT_HAIRPIN_N_NEXT,
  .next_nodes = {
    [NAT_HAIRPIN_NEXT_DROP] = "error-drop",
    [NAT_HAIRPIN_NEXT_LOOKUP] = "ip4-lookup",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_hairpin_dst_node)

Definition at line 60 of file nat44_hairpinning.c.

snat_hairpin_src_node

vlib_node_registration_t snat_hairpin_src_node

Initial value:

= {
  .function = snat_hairpin_src_fn,
  .name = "nat44-hairpin-src",
  .vector_size = sizeof (u32),
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(nat44_hairpin_error_strings),
  .error_strings = nat44_hairpin_error_strings,
  .n_next_nodes = SNAT_HAIRPIN_SRC_N_NEXT,
  .next_nodes = {
     [SNAT_HAIRPIN_SRC_NEXT_DROP] = "error-drop",
     [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT] = "nat44-in2out-output",
     [SNAT_HAIRPIN_SRC_NEXT_INTERFACE_OUTPUT] = "interface-output",
     [SNAT_HAIRPIN_SRC_NEXT_SNAT_IN2OUT_WH] = "nat44-in2out-output-worker-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (snat_hairpin_src_node)

Definition at line 61 of file nat44_hairpinning.c.

vnet_feat_arc_ip4_local

vnet_feature_arc_registration_t vnet_feat_arc_ip4_local