FD.io VPP  v17.07.01-10-g3be13f0
Vector Packet Processing
nat64_in2out.c File Reference

NAT64 IPv6 to IPv4 translation (inside to outside network) More...

+ Include dependency graph for nat64_in2out.c:

Go to the source code of this file.

Data Structures

struct  nat64_in2out_trace_t
 
struct  nat64_in2out_set_ctx_t_
 

Macros

#define foreach_nat64_in2out_error
 

Typedefs

typedef struct nat64_in2out_set_ctx_t_ nat64_in2out_set_ctx_t
 

Enumerations

enum  nat64_in2out_error_t { NAT64_IN2OUT_N_ERROR }
 
enum  nat64_in2out_next_t { NAT64_IN2OUT_NEXT_IP4_LOOKUP, NAT64_IN2OUT_NEXT_IP6_LOOKUP, NAT64_IN2OUT_NEXT_DROP, NAT64_IN2OUT_N_NEXT }
 

Functions

static u8format_nat64_in2out_trace (u8 *s, va_list *args)
 
static_always_inline int is_hairpinning (ip6_address_t *dst_addr)
 Check whether is a hairpinning. More...
 
static int nat64_in2out_tcp_udp_set_cb (ip6_header_t *ip6, ip4_header_t *ip4, void *arg)
 
static int nat64_in2out_icmp_set_cb (ip6_header_t *ip6, ip4_header_t *ip4, void *arg)
 
static int nat64_in2out_inner_icmp_set_cb (ip6_header_t *ip6, ip4_header_t *ip4, void *arg)
 
static int nat64_in2out_tcp_udp_hairpinning (vlib_main_t *vm, vlib_buffer_t *b, ip6_header_t *ip6)
 
static int nat64_in2out_icmp_hairpinning (vlib_main_t *vm, vlib_buffer_t *b, ip6_header_t *ip6)
 
static uword nat64_in2out_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
 
 VLIB_NODE_FUNCTION_MULTIARCH (nat64_in2out_node, nat64_in2out_node_fn)
 

Variables

vlib_node_registration_t nat64_in2out_node
 (constructor) VLIB_REGISTER_NODE (nat64_in2out_node) More...
 
static char * nat64_in2out_error_strings []
 

Detailed Description

NAT64 IPv6 to IPv4 translation (inside to outside network)

Definition in file nat64_in2out.c.

Macro Definition Documentation

#define foreach_nat64_in2out_error
Value:
_(UNSUPPORTED_PROTOCOL, "unsupported protocol") \
_(IN2OUT_PACKETS, "good in2out packets processed") \
_(NO_TRANSLATION, "no translation") \
_(UNKNOWN, "unknown")

Definition at line 46 of file nat64_in2out.c.

Typedef Documentation

Enumeration Type Documentation

Enumerator
NAT64_IN2OUT_N_ERROR 

Definition at line 52 of file nat64_in2out.c.

Enumerator
NAT64_IN2OUT_NEXT_IP4_LOOKUP 
NAT64_IN2OUT_NEXT_IP6_LOOKUP 
NAT64_IN2OUT_NEXT_DROP 
NAT64_IN2OUT_N_NEXT 

Definition at line 66 of file nat64_in2out.c.

Function Documentation

static u8* format_nat64_in2out_trace ( u8 s,
va_list *  args 
)
static

Definition at line 31 of file nat64_in2out.c.

+ Here is the call graph for this function:

static_always_inline int is_hairpinning ( ip6_address_t dst_addr)

Check whether is a hairpinning.

If the destination IP address of the packet is an IPv4 address assigned to the NAT64 itself, then the packet is a hairpin packet.

param dst_addr Destination address of the packet.

Returns
1 if hairpinning, otherwise 0.

Definition at line 91 of file nat64_in2out.c.

+ Here is the caller graph for this function:

static int nat64_in2out_icmp_hairpinning ( vlib_main_t vm,
vlib_buffer_t b,
ip6_header_t ip6 
)
static

Definition at line 481 of file nat64_in2out.c.

+ Here is the call graph for this function:

+ Here is the caller graph for this function:

static int nat64_in2out_icmp_set_cb ( ip6_header_t ip6,
ip4_header_t ip4,
void *  arg 
)
static

Definition at line 191 of file nat64_in2out.c.

+ Here is the call graph for this function:

+ Here is the caller graph for this function:

static int nat64_in2out_inner_icmp_set_cb ( ip6_header_t ip6,
ip4_header_t ip4,
void *  arg 
)
static

Definition at line 276 of file nat64_in2out.c.

+ Here is the call graph for this function:

+ Here is the caller graph for this function:

static uword nat64_in2out_node_fn ( vlib_main_t vm,
vlib_node_runtime_t node,
vlib_frame_t frame 
)
static

Definition at line 597 of file nat64_in2out.c.

+ Here is the call graph for this function:

static int nat64_in2out_tcp_udp_hairpinning ( vlib_main_t vm,
vlib_buffer_t b,
ip6_header_t ip6 
)
static

Definition at line 357 of file nat64_in2out.c.

+ Here is the call graph for this function:

+ Here is the caller graph for this function:

static int nat64_in2out_tcp_udp_set_cb ( ip6_header_t ip6,
ip4_header_t ip4,
void *  arg 
)
static

Definition at line 106 of file nat64_in2out.c.

+ Here is the call graph for this function:

+ Here is the caller graph for this function:

VLIB_NODE_FUNCTION_MULTIARCH ( nat64_in2out_node  ,
nat64_in2out_node_fn   
)

Variable Documentation

char* nat64_in2out_error_strings[]
static
Initial value:
= {
#define _(sym,string)
}
#define foreach_nat64_in2out_error
Definition: nat64_in2out.c:46

Definition at line 60 of file nat64_in2out.c.

vlib_node_registration_t nat64_in2out_node
Initial value:
= {
.function = nat64_in2out_node_fn,.name = "nat64-in2out",
.vector_size = sizeof (u32),
.format_trace = format_nat64_in2out_trace,
.error_strings = nat64_in2out_error_strings,
.n_next_nodes = 2,
.next_nodes = {
[NAT64_IN2OUT_NEXT_DROP] = "error-drop",
[NAT64_IN2OUT_NEXT_IP4_LOOKUP] = "ip4-lookup",
[NAT64_IN2OUT_NEXT_IP6_LOOKUP] = "ip6-lookup",
},
}
static u8 * format_nat64_in2out_trace(u8 *s, va_list *args)
Definition: nat64_in2out.c:31
static char * nat64_in2out_error_strings[]
Definition: nat64_in2out.c:60
#define ARRAY_LEN(x)
Definition: clib.h:59
unsigned int u32
Definition: types.h:88
static uword nat64_in2out_node_fn(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
Definition: nat64_in2out.c:597

(constructor) VLIB_REGISTER_NODE (nat64_in2out_node)

Definition at line 44 of file nat64_in2out.c.