cnat_translation.c File Reference

Include dependency graph for cnat_translation.c:

Go to the source code of this file.

Data Structures
struct	cnat_maglev_entry_t

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)
u8 *	format_cnat_lb_type (u8 *s, va_list *args)
uword	unformat_cnat_lb_type (unformat_input_t *input, va_list *args)
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 int	cnat_maglev_entry_compare (void *_a, void *_b)
static void	cnat_translation_init_maglev (cnat_translation_t *ct)
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, cnat_lb_type_t lb_type)
	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_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)
void	cnat_translation_register_addr_add_cb (cnat_addr_resol_type_t typ, cnat_if_addr_add_cb_t fn)
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...

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 148 of file cnat_translation.c.

Here is the caller graph for this function:

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 733 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 775 of file cnat_translation.c.

Here is the caller graph for this function:

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 700 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 802 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 790 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_maglev_entry_compare()

static int cnat_maglev_entry_compare ( void *  _a, void *  _b  )

static

Definition at line 212 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 180 of file cnat_translation.c.

Here is the caller graph for this function:

cnat_resolve_ep_tuple()

static void cnat_resolve_ep_tuple ( cnat_endpoint_tuple_t *  path )

static

Definition at line 56 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_tracker_release()

static void cnat_tracker_release ( cnat_ep_trk_t *  trk )

static

Definition at line 80 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_tracker_track()

static void cnat_tracker_track ( index_t  cti, cnat_ep_trk_t *  trk  )

static

Definition at line 89 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 607 of file cnat_translation.c.

Here is the call graph for this function:

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 636 of file cnat_translation.c.

Here is the call graph for this function:

cnat_translation_delete()

int cnat_translation_delete

(

u32

id

)

Delete a translation.

Parameters

id	the ID as returned from the create

Definition at line 342 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_translation_get_from_node()

static cnat_translation_t* cnat_translation_get_from_node ( fib_node_t *  node )

static

Definition at line 591 of file cnat_translation.c.

Here is the caller graph for this function:

cnat_translation_get_node()

static fib_node_t* cnat_translation_get_node ( fib_node_index_t  index )

static

Definition at line 584 of file cnat_translation.c.

Here is the call graph for this function:

cnat_translation_init()

static clib_error_t* cnat_translation_init ( vlib_main_t *  vm )

static

Definition at line 822 of file cnat_translation.c.

Here is the call graph for this function:

cnat_translation_init_maglev()

static void cnat_translation_init_maglev ( cnat_translation_t *  ct )

static

Definition at line 231 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_translation_last_lock_gone()

static void cnat_translation_last_lock_gone ( fib_node_t *  node )

static

Definition at line 599 of file cnat_translation.c.

cnat_translation_purge()

int cnat_translation_purge

(

void

)

Purge all the trahslations.

Definition at line 557 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_translation_register_addr_add_cb()

void cnat_translation_register_addr_add_cb	(	cnat_addr_resol_type_t	typ,
		cnat_if_addr_add_cb_t	fn
	)

Definition at line 814 of file cnat_translation.c.

Here is the caller graph for this function:

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 523 of file cnat_translation.c.

Here is the call graph for this function:

cnat_translation_stack()

static void cnat_translation_stack ( cnat_translation_t *  ct )

static

Definition at line 309 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

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 63 of file cnat_translation.c.

Here is the caller graph for this function:

cnat_translation_update()

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

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 366 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

cnat_translation_walk()

void cnat_translation_walk	(	cnat_translation_walk_cb_t	cb,
		void *	ctx
	)

Walk/visit each of the translations.

Definition at line 451 of file cnat_translation.c.

Here is the caller graph for this function:

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 39 of file cnat_translation.c.

Here is the caller graph for this function:

format_cnat_ep_trk()

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

static

Definition at line 463 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

format_cnat_lb_type()

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

Definition at line 114 of file cnat_translation.c.

Here is the caller graph for this function:

format_cnat_translation()

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

Definition at line 478 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

unformat_cnat_lb_type()

uword unformat_cnat_lb_type	(	unformat_input_t *	input,
		va_list *	args
	)

Definition at line 127 of file cnat_translation.c.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

cnat_if_addr_add_cbs

cnat_if_addr_add_cb_t* cnat_if_addr_add_cbs

Definition at line 29 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 692 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 33 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 31 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 576 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 629 of file cnat_translation.c.

tr_resolutions

addr_resolution_t* tr_resolutions

Definition at line 28 of file cnat_translation.c.