cnat_translation.c File Reference

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Typedefs
typedef void(*	cnat_if_addr_add_cb_t) (addr_resolution_t *ar, ip_address_t *address, u8 is_del)

Functions
void	cnat_translation_watch_addr (index_t cti, u64 opaque, cnat_endpoint_t *ep, cnat_addr_resol_type_t type)
	Add an address resolution request. More...
static void	cnat_resolve_ep_tuple (cnat_endpoint_tuple_t *path)
void	cnat_translation_unwatch_addr (u32 cti, cnat_addr_resol_type_t type)
	Cleanup matching addr resolution requests. More...
static void	cnat_tracker_release (cnat_ep_trk_t *trk)
static void	cnat_tracker_track (index_t cti, cnat_ep_trk_t *trk)
static void	cnat_add_translation_to_db (index_t cci, cnat_endpoint_t *vip, ip_protocol_t proto, index_t cti)
	Add a translation to the bihash. More...
static void	cnat_remove_translation_from_db (index_t cci, cnat_endpoint_t *vip, ip_protocol_t proto)
	Remove a translation from the bihash. More...
static void	cnat_translation_stack (cnat_translation_t *ct)
int	cnat_translation_delete (u32 id)
	Delete a translation. More...
u32	cnat_translation_update (cnat_endpoint_t *vip, ip_protocol_t proto, cnat_endpoint_tuple_t *paths, u8 flags)
	create or update a translation More...
void	cnat_translation_walk (cnat_translation_walk_cb_t cb, void *ctx)
	Walk/visit each of the translations. More...
static u8 *	format_cnat_ep_trk (u8 *s, va_list *args)
u8 *	format_cnat_translation (u8 *s, va_list *args)
static clib_error_t *	cnat_translation_show (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
int	cnat_translation_purge (void)
	Purge all the trahslations. More...
static fib_node_t *	cnat_translation_get_node (fib_node_index_t index)
static cnat_translation_t *	cnat_translation_get_from_node (fib_node_t *node)
static void	cnat_translation_last_lock_gone (fib_node_t *node)
static fib_node_back_walk_rc_t	cnat_translation_back_walk_notify (fib_node_t *node, fib_node_back_walk_ctx_t *ctx)
static clib_error_t *	cnat_translation_cli_add_del (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
static void	cnat_if_addr_add_del_translation_cb (addr_resolution_t *ar, ip_address_t *address, u8 is_del)
static void	cnat_if_addr_add_del_backend_cb (addr_resolution_t *ar, ip_address_t *address, u8 is_del)
static void	cnat_if_addr_add_del_snat_cb (addr_resolution_t *ar, ip_address_t *address, u8 is_del)
static void	cnat_if_addr_add_del_callback (u32 sw_if_index, ip_address_t *address, u8 is_del)
static void	cnat_ip6_if_addr_add_del_callback (struct ip6_main_t *im, uword opaque, u32 sw_if_index, ip6_address_t *address, u32 address_length, u32 if_address_index, u32 is_del)
static void	cnat_ip4_if_addr_add_del_callback (struct ip4_main_t *im, uword opaque, u32 sw_if_index, ip4_address_t *address, u32 address_length, u32 if_address_index, u32 is_del)
static clib_error_t *	cnat_translation_init (vlib_main_t *vm)

Variables
cnat_translation_t *	cnat_translation_pool
clib_bihash_8_8_t	cnat_translation_db
addr_resolution_t *	tr_resolutions
cnat_if_addr_add_cb_t *	cnat_if_addr_add_cbs
static fib_node_type_t	cnat_translation_fib_node_type
vlib_combined_counter_main_t	cnat_translation_counters
	Counters for each translation. More...
static vlib_cli_command_t	cnat_translation_show_cmd_node
	(constructor) VLIB_CLI_COMMAND (cnat_translation_show_cmd_node) More...
static const fib_node_vft_t	cnat_translation_vft
static vlib_cli_command_t	cnat_translation_cli_add_del_command
	(constructor) VLIB_CLI_COMMAND (cnat_translation_cli_add_del_command) More...

Typedef Documentation

cnat_if_addr_add_cb_t

typedef void(* cnat_if_addr_add_cb_t) (addr_resolution_t *ar, ip_address_t *address, u8 is_del)

Definition at line 30 of file cnat_translation.c.

Function Documentation

cnat_add_translation_to_db()

static void cnat_add_translation_to_db ( index_t  cci, cnat_endpoint_t *  vip, ip_protocol_t  proto, index_t  cti  )

static

Add a translation to the bihash.

Parameters

cci	the ID of the parent client (invalid if vip not resolved)
vip	the translation endpoint
proto	the translation proto
cti	the translation index to be used as value

Definition at line 122 of file cnat_translation.c.

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cnat_if_addr_add_del_backend_cb()

static void cnat_if_addr_add_del_backend_cb ( addr_resolution_t *  ar, ip_address_t *  address, u8  is_del  )

static

Definition at line 579 of file cnat_translation.c.

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cnat_if_addr_add_del_callback()

static void cnat_if_addr_add_del_callback ( u32  sw_if_index, ip_address_t *  address, u8  is_del  )

static

Definition at line 647 of file cnat_translation.c.

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cnat_if_addr_add_del_snat_cb()

static void cnat_if_addr_add_del_snat_cb ( addr_resolution_t *  ar, ip_address_t *  address, u8  is_del  )

static

Definition at line 621 of file cnat_translation.c.

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cnat_if_addr_add_del_translation_cb()

static void cnat_if_addr_add_del_translation_cb ( addr_resolution_t *  ar, ip_address_t *  address, u8  is_del  )

static

Definition at line 546 of file cnat_translation.c.

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cnat_ip4_if_addr_add_del_callback()

static void cnat_ip4_if_addr_add_del_callback ( struct ip4_main_t *  im, uword  opaque, u32  sw_if_index, ip4_address_t *  address, u32  address_length, u32  if_address_index, u32  is_del  )

static

Definition at line 675 of file cnat_translation.c.

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cnat_ip6_if_addr_add_del_callback()

static void cnat_ip6_if_addr_add_del_callback ( struct ip6_main_t *  im, uword  opaque, u32  sw_if_index, ip6_address_t *  address, u32  address_length, u32  if_address_index, u32  is_del  )

static

Definition at line 663 of file cnat_translation.c.

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cnat_remove_translation_from_db()

static void cnat_remove_translation_from_db ( index_t  cci, cnat_endpoint_t *  vip, ip_protocol_t  proto  )

static

Remove a translation from the bihash.

Parameters

cci	the ID of the parent client
vip	the translation endpoint
proto	the translation proto

Definition at line 154 of file cnat_translation.c.

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cnat_resolve_ep_tuple()

static void cnat_resolve_ep_tuple ( cnat_endpoint_tuple_t *  path )

static

Definition at line 59 of file cnat_translation.c.

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cnat_tracker_release()

static void cnat_tracker_release ( cnat_ep_trk_t *  trk )

static

Definition at line 84 of file cnat_translation.c.

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cnat_tracker_track()

static void cnat_tracker_track ( index_t  cti, cnat_ep_trk_t *  trk  )

static

Definition at line 93 of file cnat_translation.c.

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cnat_translation_back_walk_notify()

static fib_node_back_walk_rc_t cnat_translation_back_walk_notify ( fib_node_t *  node, fib_node_back_walk_ctx_t *  ctx  )

static

Definition at line 454 of file cnat_translation.c.

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cnat_translation_cli_add_del()

static clib_error_t* cnat_translation_cli_add_del ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 483 of file cnat_translation.c.

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cnat_translation_delete()

int cnat_translation_delete

(

u32

id

)

Delete a translation.

Parameters

id	the ID as returned from the create

Definition at line 205 of file cnat_translation.c.

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cnat_translation_get_from_node()

static cnat_translation_t* cnat_translation_get_from_node ( fib_node_t *  node )

static

Definition at line 438 of file cnat_translation.c.

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cnat_translation_get_node()

static fib_node_t* cnat_translation_get_node ( fib_node_index_t  index )

static

Definition at line 431 of file cnat_translation.c.

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cnat_translation_init()

static clib_error_t* cnat_translation_init ( vlib_main_t *  vm )

static

Definition at line 687 of file cnat_translation.c.

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cnat_translation_last_lock_gone()

static void cnat_translation_last_lock_gone ( fib_node_t *  node )

static

Definition at line 446 of file cnat_translation.c.

cnat_translation_purge()

int cnat_translation_purge

(

void

)

Purge all the trahslations.

Definition at line 400 of file cnat_translation.c.

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cnat_translation_show()

static clib_error_t* cnat_translation_show ( vlib_main_t *  vm, unformat_input_t *  input, vlib_cli_command_t *  cmd  )

static

Definition at line 364 of file cnat_translation.c.

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cnat_translation_stack()

static void cnat_translation_stack ( cnat_translation_t *  ct )

static

Definition at line 178 of file cnat_translation.c.

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cnat_translation_unwatch_addr()

void cnat_translation_unwatch_addr	(	u32	cti,
		cnat_addr_resol_type_t	type
	)

Cleanup matching addr resolution requests.

Definition at line 66 of file cnat_translation.c.

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cnat_translation_update()

u32 cnat_translation_update	(	cnat_endpoint_t *	vip,
		ip_protocol_t	ip_proto,
		cnat_endpoint_tuple_t *	backends,
		u8	flags
	)

create or update a translation

Parameters

vip	The Virtual Endpoint
ip_proto	The ip protocol to translate
backends	the backends to choose from

Returns

the ID of the translation. used to delete and gather stats

Definition at line 228 of file cnat_translation.c.

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cnat_translation_walk()

void cnat_translation_walk	(	cnat_translation_walk_cb_t	cb,
		void *	ctx
	)

Walk/visit each of the translations.

Definition at line 311 of file cnat_translation.c.

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cnat_translation_watch_addr()

void cnat_translation_watch_addr	(	index_t	cti,
		u64	opaque,
		cnat_endpoint_t *	ep,
		cnat_addr_resol_type_t	type
	)

Add an address resolution request.

Definition at line 42 of file cnat_translation.c.

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format_cnat_ep_trk()

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

static

Definition at line 325 of file cnat_translation.c.

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format_cnat_translation()

u8* format_cnat_translation	(	u8 *	s,
		va_list *	args
	)

Definition at line 340 of file cnat_translation.c.

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Variable Documentation

cnat_if_addr_add_cbs

cnat_if_addr_add_cb_t* cnat_if_addr_add_cbs

Definition at line 32 of file cnat_translation.c.

cnat_translation_cli_add_del_command

vlib_cli_command_t cnat_translation_cli_add_del_command

static

Initial value:

=
{
  .path = "cnat translation",
  .short_help = "cnat translation [add|del] proto [TCP|UDP] [vip|real] [ip|sw_if_index [v6]] [port] [to [ip|sw_if_index [v6]] [port]->[ip|sw_if_index [v6]] [port]]",
  .function = cnat_translation_cli_add_del,
}

(constructor) VLIB_CLI_COMMAND (cnat_translation_cli_add_del_command)

Definition at line 537 of file cnat_translation.c.

cnat_translation_counters

vlib_combined_counter_main_t cnat_translation_counters

Initial value:

= {
  .name = "cnat-translation",
  .stat_segment_name = "/net/cnat-translation",
}

Counters for each translation.

Definition at line 36 of file cnat_translation.c.

cnat_translation_db

clib_bihash_8_8_t cnat_translation_db

Definition at line 27 of file cnat_translation.c.

cnat_translation_fib_node_type

fib_node_type_t cnat_translation_fib_node_type

static

Definition at line 34 of file cnat_translation.c.

cnat_translation_pool

cnat_translation_t* cnat_translation_pool

Definition at line 26 of file cnat_translation.c.

cnat_translation_show_cmd_node

vlib_cli_command_t cnat_translation_show_cmd_node

static

Initial value:

= {
  .path = "show cnat translation",
  .function = cnat_translation_show,
  .short_help = "show cnat translation <VIP>",
  .is_mp_safe = 1,
}

(constructor) VLIB_CLI_COMMAND (cnat_translation_show_cmd_node)

Definition at line 422 of file cnat_translation.c.

cnat_translation_vft

const fib_node_vft_t cnat_translation_vft

static

Initial value:

= {
  .fnv_get = cnat_translation_get_node,
  .fnv_last_lock = cnat_translation_last_lock_gone,
  .fnv_back_walk = cnat_translation_back_walk_notify,
}

Definition at line 476 of file cnat_translation.c.

tr_resolutions

addr_resolution_t* tr_resolutions

Definition at line 28 of file cnat_translation.c.