esp_decrypt.c File Reference

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Data Structures
struct	esp_decrypt_trace_t

Macros
#define	foreach_esp_decrypt_next
#define	foreach_esp_decrypt_post_next
#define	foreach_esp_decrypt_error
#define	ESP_ENCRYPT_PD_F_FD_TRANSPORT   (1 << 2)

Enumerations
enum	esp_decrypt_next_t { ESP_DECRYPT_N_NEXT, ESP_DECRYPT_N_NEXT }
enum	esp_decrypt_post_next_t { ESP_DECRYPT_POST_N_NEXT }
enum	esp_decrypt_error_t { ESP_DECRYPT_N_ERROR, ESP_DECRYPT_N_ERROR }

Functions
static u8 *	format_esp_decrypt_trace (u8 *s, va_list *args)
static_always_inline void	esp_process_ops (vlib_main_t *vm, vlib_node_runtime_t *node, vnet_crypto_op_t *ops, vlib_buffer_t *b[], u16 *nexts, int e)
static_always_inline void	esp_process_chained_ops (vlib_main_t *vm, vlib_node_runtime_t *node, vnet_crypto_op_t *ops, vlib_buffer_t *b[], u16 *nexts, vnet_crypto_op_chunk_t *chunks, int e)
static void	esp_remove_tail (vlib_main_t *vm, vlib_buffer_t *b, vlib_buffer_t *last, u16 tail)
static_always_inline u8 *	esp_move_icv (vlib_main_t *vm, vlib_buffer_t *first, esp_decrypt_packet_data2_t *pd2, u16 icv_sz, u16 *dif)
static_always_inline i16	esp_insert_esn (vlib_main_t *vm, ipsec_sa_t *sa, esp_decrypt_packet_data2_t *pd2, u32 *data_len, u8 **digest, u16 *len, vlib_buffer_t *b, u8 *payload)
static_always_inline u8 *	esp_move_icv_esn (vlib_main_t *vm, vlib_buffer_t *first, esp_decrypt_packet_data2_t *pd2, u16 icv_sz, ipsec_sa_t *sa, u8 *extra_esn, u32 *len)
static_always_inline int	esp_decrypt_chain_integ (vlib_main_t *vm, ipsec_per_thread_data_t *ptd, esp_decrypt_packet_data2_t *pd2, ipsec_sa_t *sa0, vlib_buffer_t *b, u8 icv_sz, u8 *start_src, u32 start_len, u8 **digest, u16 *n_ch, u32 *integ_total_len)
static_always_inline u32	esp_decrypt_chain_crypto (vlib_main_t *vm, ipsec_per_thread_data_t *ptd, esp_decrypt_packet_data2_t *pd2, ipsec_sa_t *sa0, vlib_buffer_t *b, u8 icv_sz, u8 *start, u32 start_len, u8 **tag, u16 *n_ch)
static_always_inline void	esp_decrypt_prepare_sync_op (vlib_main_t *vm, vlib_node_runtime_t *node, ipsec_per_thread_data_t *ptd, vnet_crypto_op_t ***crypto_ops, vnet_crypto_op_t ***integ_ops, vnet_crypto_op_t *op, ipsec_sa_t *sa0, u8 *payload, u16 len, u8 icv_sz, u8 iv_sz, esp_decrypt_packet_data_t *pd, esp_decrypt_packet_data2_t *pd2, vlib_buffer_t *b, u16 *next, u32 index)
static_always_inline int	esp_decrypt_prepare_async_frame (vlib_main_t *vm, vlib_node_runtime_t *node, ipsec_per_thread_data_t *ptd, vnet_crypto_async_frame_t **f, ipsec_sa_t *sa0, u8 *payload, u16 len, u8 icv_sz, u8 iv_sz, esp_decrypt_packet_data_t *pd, esp_decrypt_packet_data2_t *pd2, u32 bi, vlib_buffer_t *b, u16 *next, u16 async_next)
static_always_inline void	esp_decrypt_post_crypto (vlib_main_t *vm, vlib_node_runtime_t *node, esp_decrypt_packet_data_t *pd, esp_decrypt_packet_data2_t *pd2, vlib_buffer_t *b, u16 *next, int is_ip6, int is_tun, int is_async)
static uword	esp_decrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, int is_ip6, int is_tun, u16 async_next)
static uword	esp_decrypt_post_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame, int is_ip6, int is_tun)
VLIB_NODE_FN()	esp4_decrypt_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp4_decrypt_post_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp4_decrypt_tun_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp4_decrypt_tun_post_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp6_decrypt_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp6_decrypt_post_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp6_decrypt_tun_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
VLIB_NODE_FN()	esp6_decrypt_tun_post_node (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)

Variables
static char *	esp_decrypt_error_strings []
vlib_node_registration_t	esp4_decrypt_node
	(constructor) VLIB_REGISTER_NODE (esp4_decrypt_node) More...
vlib_node_registration_t	esp4_decrypt_post_node
	(constructor) VLIB_REGISTER_NODE (esp4_decrypt_post_node) More...
vlib_node_registration_t	esp6_decrypt_node
	(constructor) VLIB_REGISTER_NODE (esp6_decrypt_node) More...
vlib_node_registration_t	esp6_decrypt_post_node
	(constructor) VLIB_REGISTER_NODE (esp6_decrypt_post_node) More...
vlib_node_registration_t	esp4_decrypt_tun_node
	(constructor) VLIB_REGISTER_NODE (esp4_decrypt_tun_node) More...
vlib_node_registration_t	esp4_decrypt_tun_post_node
	(constructor) VLIB_REGISTER_NODE (esp4_decrypt_tun_post_node) More...
vlib_node_registration_t	esp6_decrypt_tun_node
	(constructor) VLIB_REGISTER_NODE (esp6_decrypt_tun_node) More...
vlib_node_registration_t	esp6_decrypt_tun_post_node
	(constructor) VLIB_REGISTER_NODE (esp6_decrypt_tun_post_node) More...

Macro Definition Documentation

ESP_ENCRYPT_PD_F_FD_TRANSPORT

#define ESP_ENCRYPT_PD_F_FD_TRANSPORT   (1 << 2)

Definition at line 113 of file esp_decrypt.c.

foreach_esp_decrypt_error

#define foreach_esp_decrypt_error

Value:

_(RX_PKTS, "ESP pkts received")                                \
 _(RX_POST_PKTS, "ESP-POST pkts received")                      \
 _(DECRYPTION_FAILED, "ESP decryption failed")                  \
 _(INTEG_ERROR, "Integrity check failed")                       \
 _(CRYPTO_ENGINE_ERROR, "crypto engine error (packet dropped)") \
 _(REPLAY, "SA replayed packet")                                \
 _(RUNT, "undersized packet")                                   \
 _(NO_BUFFERS, "no buffers (packet dropped)")                   \
 _(OVERSIZED_HEADER, "buffer with oversized header (dropped)")  \
 _(NO_TAIL_SPACE, "no enough buffer tail space (dropped)")      \
 _(TUN_NO_PROTO, "no tunnel protocol")                          \
 _(UNSUP_PAYLOAD, "unsupported payload")                        \

Definition at line 59 of file esp_decrypt.c.

foreach_esp_decrypt_next

#define foreach_esp_decrypt_next

Value:

_(DROP, "error-drop")                           \
_(IP4_INPUT, "ip4-input-no-checksum")           \
_(IP6_INPUT, "ip6-input")                       \
_(L2_INPUT, "l2-input")                         \
_(HANDOFF, "handoff")

Definition at line 30 of file esp_decrypt.c.

foreach_esp_decrypt_post_next

#define foreach_esp_decrypt_post_next

Value:

_(DROP, "error-drop")                                  \
_(IP4_INPUT, "ip4-input-no-checksum")                  \
_(IP6_INPUT, "ip6-input")                              \
_(L2_INPUT, "l2-input")

Definition at line 45 of file esp_decrypt.c.

Enumeration Type Documentation

esp_decrypt_error_t

enum esp_decrypt_error_t

Enumerator
ESP_DECRYPT_N_ERROR
ESP_DECRYPT_N_ERROR

Definition at line 74 of file esp_decrypt.c.

esp_decrypt_next_t

enum esp_decrypt_next_t

Enumerator
ESP_DECRYPT_N_NEXT
ESP_DECRYPT_N_NEXT

Definition at line 38 of file esp_decrypt.c.

esp_decrypt_post_next_t

enum esp_decrypt_post_next_t

Enumerator
ESP_DECRYPT_POST_N_NEXT

Definition at line 52 of file esp_decrypt.c.

Function Documentation

esp4_decrypt_node()

VLIB_NODE_FN() esp4_decrypt_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1380 of file esp_decrypt.c.

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esp4_decrypt_post_node()

VLIB_NODE_FN() esp4_decrypt_post_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1388 of file esp_decrypt.c.

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esp4_decrypt_tun_node()

VLIB_NODE_FN() esp4_decrypt_tun_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1395 of file esp_decrypt.c.

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esp4_decrypt_tun_post_node()

VLIB_NODE_FN() esp4_decrypt_tun_post_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1403 of file esp_decrypt.c.

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esp6_decrypt_node()

VLIB_NODE_FN() esp6_decrypt_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1410 of file esp_decrypt.c.

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esp6_decrypt_post_node()

VLIB_NODE_FN() esp6_decrypt_post_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1418 of file esp_decrypt.c.

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esp6_decrypt_tun_node()

VLIB_NODE_FN() esp6_decrypt_tun_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1425 of file esp_decrypt.c.

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esp6_decrypt_tun_post_node()

VLIB_NODE_FN() esp6_decrypt_tun_post_node	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	from_frame
	)

Definition at line 1433 of file esp_decrypt.c.

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esp_decrypt_chain_crypto()

static_always_inline u32 esp_decrypt_chain_crypto	(	vlib_main_t *	vm,
		ipsec_per_thread_data_t *	ptd,
		esp_decrypt_packet_data2_t *	pd2,
		ipsec_sa_t *	sa0,
		vlib_buffer_t *	b,
		u8	icv_sz,
		u8 *	start,
		u32	start_len,
		u8 **	tag,
		u16 *	n_ch
	)

Definition at line 400 of file esp_decrypt.c.

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esp_decrypt_chain_integ()

static_always_inline int esp_decrypt_chain_integ	(	vlib_main_t *	vm,
		ipsec_per_thread_data_t *	ptd,
		esp_decrypt_packet_data2_t *	pd2,
		ipsec_sa_t *	sa0,
		vlib_buffer_t *	b,
		u8	icv_sz,
		u8 *	start_src,
		u32	start_len,
		u8 **	digest,
		u16 *	n_ch,
		u32 *	integ_total_len
	)

Definition at line 304 of file esp_decrypt.c.

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esp_decrypt_inline()

static uword esp_decrypt_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame, int  is_ip6, int  is_tun, u16  async_next  )

inlinestatic

Definition at line 1014 of file esp_decrypt.c.

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esp_decrypt_post_crypto()

static_always_inline void esp_decrypt_post_crypto	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		esp_decrypt_packet_data_t *	pd,
		esp_decrypt_packet_data2_t *	pd2,
		vlib_buffer_t *	b,
		u16 *	next,
		int	is_ip6,
		int	is_tun,
		int	is_async
	)

Definition at line 751 of file esp_decrypt.c.

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esp_decrypt_post_inline()

static uword esp_decrypt_post_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  from_frame, int  is_ip6, int  is_tun  )

inlinestatic

Definition at line 1318 of file esp_decrypt.c.

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esp_decrypt_prepare_async_frame()

static_always_inline int esp_decrypt_prepare_async_frame	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		ipsec_per_thread_data_t *	ptd,
		vnet_crypto_async_frame_t **	f,
		ipsec_sa_t *	sa0,
		u8 *	payload,
		u16	len,
		u8	icv_sz,
		u8	iv_sz,
		esp_decrypt_packet_data_t *	pd,
		esp_decrypt_packet_data2_t *	pd2,
		u32	bi,
		vlib_buffer_t *	b,
		u16 *	next,
		u16	async_next
	)

Definition at line 609 of file esp_decrypt.c.

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esp_decrypt_prepare_sync_op()

static_always_inline void esp_decrypt_prepare_sync_op	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		ipsec_per_thread_data_t *	ptd,
		vnet_crypto_op_t ***	crypto_ops,
		vnet_crypto_op_t ***	integ_ops,
		vnet_crypto_op_t *	op,
		ipsec_sa_t *	sa0,
		u8 *	payload,
		u16	len,
		u8	icv_sz,
		u8	iv_sz,
		esp_decrypt_packet_data_t *	pd,
		esp_decrypt_packet_data2_t *	pd2,
		vlib_buffer_t *	b,
		u16 *	next,
		u32	index
	)

Definition at line 472 of file esp_decrypt.c.

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esp_insert_esn()

static_always_inline i16 esp_insert_esn	(	vlib_main_t *	vm,
		ipsec_sa_t *	sa,
		esp_decrypt_packet_data2_t *	pd2,
		u32 *	data_len,
		u8 **	digest,
		u16 *	len,
		vlib_buffer_t *	b,
		u8 *	payload
	)

Definition at line 234 of file esp_decrypt.c.

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esp_move_icv()

static_always_inline u8* esp_move_icv	(	vlib_main_t *	vm,
		vlib_buffer_t *	first,
		esp_decrypt_packet_data2_t *	pd2,
		u16	icv_sz,
		u16 *	dif
	)

Definition at line 204 of file esp_decrypt.c.

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esp_move_icv_esn()

static_always_inline u8* esp_move_icv_esn	(	vlib_main_t *	vm,
		vlib_buffer_t *	first,
		esp_decrypt_packet_data2_t *	pd2,
		u16	icv_sz,
		ipsec_sa_t *	sa,
		u8 *	extra_esn,
		u32 *	len
	)

Definition at line 270 of file esp_decrypt.c.

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esp_process_chained_ops()

static_always_inline void esp_process_chained_ops	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vnet_crypto_op_t *	ops,
		vlib_buffer_t *	b[],
		u16 *	nexts,
		vnet_crypto_op_chunk_t *	chunks,
		int	e
	)

Definition at line 147 of file esp_decrypt.c.

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esp_process_ops()

static_always_inline void esp_process_ops	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vnet_crypto_op_t *	ops,
		vlib_buffer_t *	b[],
		u16 *	nexts,
		int	e
	)

Definition at line 116 of file esp_decrypt.c.

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esp_remove_tail()

static void esp_remove_tail ( vlib_main_t *  vm, vlib_buffer_t *  b, vlib_buffer_t *  last, u16  tail  )

inlinestatic

Definition at line 179 of file esp_decrypt.c.

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format_esp_decrypt_trace()

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

static

Definition at line 99 of file esp_decrypt.c.

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Variable Documentation

esp4_decrypt_node

vlib_node_registration_t esp4_decrypt_node

Initial value:

= {
  .name = "esp4-decrypt",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .n_next_nodes = ESP_DECRYPT_N_NEXT,
  .next_nodes = {
    [ESP_DECRYPT_NEXT_DROP] = "ip4-drop",
    [ESP_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
    [ESP_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
    [ESP_DECRYPT_NEXT_L2_INPUT] = "l2-input",
    [ESP_DECRYPT_NEXT_HANDOFF] = "esp4-decrypt-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (esp4_decrypt_node)

Definition at line 1441 of file esp_decrypt.c.

esp4_decrypt_post_node

vlib_node_registration_t esp4_decrypt_post_node

Initial value:

= {
  .name = "esp4-decrypt-post",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .sibling_of = "esp4-decrypt",
}

(constructor) VLIB_REGISTER_NODE (esp4_decrypt_post_node)

Definition at line 1460 of file esp_decrypt.c.

esp4_decrypt_tun_node

vlib_node_registration_t esp4_decrypt_tun_node

Initial value:

= {
  .name = "esp4-decrypt-tun",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,
  .n_next_nodes = ESP_DECRYPT_N_NEXT,
  .next_nodes = {
    [ESP_DECRYPT_NEXT_DROP] = "ip4-drop",
    [ESP_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
    [ESP_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
    [ESP_DECRYPT_NEXT_L2_INPUT] = "l2-input",
    [ESP_DECRYPT_NEXT_HANDOFF] = "esp4-decrypt-tun-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (esp4_decrypt_tun_node)

Definition at line 1503 of file esp_decrypt.c.

esp4_decrypt_tun_post_node

vlib_node_registration_t esp4_decrypt_tun_post_node

Initial value:

= {
  .name = "esp4-decrypt-tun-post",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .sibling_of = "esp4-decrypt-tun",
}

(constructor) VLIB_REGISTER_NODE (esp4_decrypt_tun_post_node)

Definition at line 1520 of file esp_decrypt.c.

esp6_decrypt_node

vlib_node_registration_t esp6_decrypt_node

Initial value:

= {
  .name = "esp6-decrypt",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .n_next_nodes = ESP_DECRYPT_N_NEXT,
  .next_nodes = {
    [ESP_DECRYPT_NEXT_DROP] = "ip6-drop",
    [ESP_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
    [ESP_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
    [ESP_DECRYPT_NEXT_L2_INPUT] = "l2-input",
    [ESP_DECRYPT_NEXT_HANDOFF]=  "esp6-decrypt-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (esp6_decrypt_node)

Definition at line 1472 of file esp_decrypt.c.

esp6_decrypt_post_node

vlib_node_registration_t esp6_decrypt_post_node

Initial value:

= {
  .name = "esp6-decrypt-post",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .sibling_of = "esp6-decrypt",
}

(constructor) VLIB_REGISTER_NODE (esp6_decrypt_post_node)

Definition at line 1491 of file esp_decrypt.c.

esp6_decrypt_tun_node

vlib_node_registration_t esp6_decrypt_tun_node

Initial value:

= {
  .name = "esp6-decrypt-tun",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,
  .n_next_nodes = ESP_DECRYPT_N_NEXT,
  .next_nodes = {
    [ESP_DECRYPT_NEXT_DROP] = "ip6-drop",
    [ESP_DECRYPT_NEXT_IP4_INPUT] = "ip4-input-no-checksum",
    [ESP_DECRYPT_NEXT_IP6_INPUT] = "ip6-input",
    [ESP_DECRYPT_NEXT_L2_INPUT] = "l2-input",
    [ESP_DECRYPT_NEXT_HANDOFF]=  "esp6-decrypt-tun-handoff",
  },
}

(constructor) VLIB_REGISTER_NODE (esp6_decrypt_tun_node)

Definition at line 1532 of file esp_decrypt.c.

esp6_decrypt_tun_post_node

vlib_node_registration_t esp6_decrypt_tun_post_node

Initial value:

= {
  .name = "esp6-decrypt-tun-post",
  .vector_size = sizeof (u32),
  .format_trace = format_esp_decrypt_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
  .error_strings = esp_decrypt_error_strings,

  .sibling_of = "esp6-decrypt-tun",
}

(constructor) VLIB_REGISTER_NODE (esp6_decrypt_tun_post_node)

Definition at line 1549 of file esp_decrypt.c.

esp_decrypt_error_strings

char* esp_decrypt_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_esp_decrypt_error

}

Definition at line 82 of file esp_decrypt.c.