ip4_to_ip6.h File Reference

IPv4 to IPv6 translation. More...

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Macros
#define	frag_id_4to6(id)   (id)

Typedefs
typedef int(*	ip4_to_ip6_set_fn_t) (ip4_header_t *ip4, ip6_header_t *ip6, void *ctx)
	IPv4 to IPv6 set call back function type. More...

Functions
static u16	ip4_get_port (ip4_header_t *ip, u8 sender)
	Get TCP/UDP port number or ICMP id from IPv4 packet. More...
static int	icmp_to_icmp6_header (icmp46_header_t *icmp, ip4_header_t **inner_ip4)
	Convert type and code value from ICMP4 to ICMP6. More...
static int	icmp_to_icmp6 (vlib_buffer_t *p, ip4_to_ip6_set_fn_t fn, void *ctx, ip4_to_ip6_set_fn_t inner_fn, void *inner_ctx)
	Translate ICMP4 packet to ICMP6. More...
static int	ip4_to_ip6_fragmented (vlib_buffer_t *p, ip4_to_ip6_set_fn_t fn, void *ctx)
	Translate IPv4 fragmented packet to IPv6. More...
static int	ip4_to_ip6_tcp_udp (vlib_buffer_t *p, ip4_to_ip6_set_fn_t fn, void *ctx)
	Translate IPv4 UDP/TCP packet to IPv6. More...
static int	ip4_to_ip6 (vlib_buffer_t *p, ip4_to_ip6_set_fn_t fn, void *ctx)
	Translate IPv4 packet to IPv6 (IP header only). More...

Variables
static u8	icmp_to_icmp6_updater_pointer_table []

Detailed Description

IPv4 to IPv6 translation.

Definition in file ip4_to_ip6.h.

Macro Definition Documentation

frag_id_4to6

#define frag_id_4to6

(

id

)

(id)

Definition at line 40 of file ip4_to_ip6.h.

Typedef Documentation

ip4_to_ip6_set_fn_t

typedef int(* ip4_to_ip6_set_fn_t) (ip4_header_t *ip4, ip6_header_t *ip6, void *ctx)

IPv4 to IPv6 set call back function type.

Definition at line 28 of file ip4_to_ip6.h.

Function Documentation

icmp_to_icmp6()

static int icmp_to_icmp6 ( vlib_buffer_t *  p, ip4_to_ip6_set_fn_t  fn, void *  ctx, ip4_to_ip6_set_fn_t  inner_fn, void *  inner_ctx  )

inlinestatic

Translate ICMP4 packet to ICMP6.

Parameters

p	Buffer to translate.
fn	The function to translate outer header.
ctx	A context passed in the outer header translate function.
inner_fn	The function to translate inner header.
inner_ctx	A context passed in the inner header translate function.

Returns

0 on success, non-zero value otherwise.

Definition at line 220 of file ip4_to_ip6.h.

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icmp_to_icmp6_header()

static int icmp_to_icmp6_header ( icmp46_header_t *  icmp, ip4_header_t **  inner_ip4  )

inlinestatic

Convert type and code value from ICMP4 to ICMP6.

Parameters

icmp	ICMP header.
inner_ip4	Inner IPv4 header if present, 0 otherwise.

Returns

0 on success, non-zero value otherwise.

Definition at line 102 of file ip4_to_ip6.h.

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ip4_get_port()

static u16 ip4_get_port ( ip4_header_t *  ip, u8  sender  )

inlinestatic

Get TCP/UDP port number or ICMP id from IPv4 packet.

Parameters

ip4	IPv4 header.
sender	1 get sender port, 0 get receiver port.

Returns

Port number on success, 0 otherwise.

Definition at line 51 of file ip4_to_ip6.h.

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ip4_to_ip6()

static int ip4_to_ip6 ( vlib_buffer_t *  p, ip4_to_ip6_set_fn_t  fn, void *  ctx  )

inlinestatic

Translate IPv4 packet to IPv6 (IP header only).

Parameters

p	Buffer to translate.
fn	The function to translate header.
ctx	A context passed in the header translate function.

Returns

0 on success, non-zero value otherwise.

Definition at line 601 of file ip4_to_ip6.h.

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ip4_to_ip6_fragmented()

static int ip4_to_ip6_fragmented ( vlib_buffer_t *  p, ip4_to_ip6_set_fn_t  fn, void *  ctx  )

inlinestatic

Translate IPv4 fragmented packet to IPv6.

Parameters

p	Buffer to translate.
fn	The function to translate header.
ctx	A context passed in the header translate function.

Returns

0 on success, non-zero value otherwise.

Definition at line 450 of file ip4_to_ip6.h.

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ip4_to_ip6_tcp_udp()

static int ip4_to_ip6_tcp_udp ( vlib_buffer_t *  p, ip4_to_ip6_set_fn_t  fn, void *  ctx  )

inlinestatic

Translate IPv4 UDP/TCP packet to IPv6.

Parameters

p	Buffer to translate.
fn	The function to translate header.
ctx	A context passed in the header translate function.

Returns

0 on success, non-zero value otherwise.

Definition at line 501 of file ip4_to_ip6.h.

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Variable Documentation

icmp_to_icmp6_updater_pointer_table

u8 icmp_to_icmp6_updater_pointer_table[]

static

Initial value:

=
  { 0, 1, 4, 4, ~0,
    ~0, ~0, ~0, 7, 6,
    ~0, ~0, 8, 8, 8,
    8, 24, 24, 24, 24
  }

Definition at line 32 of file ip4_to_ip6.h.