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Vector Packet Processing
esp.h File Reference
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Data Structures

struct  esp_header_t
 
struct  esp_footer_t
 
struct  esp_aead_t_
 AES GCM Additional Authentication data. More...
 
struct  esp_decrypt_packet_data_t
 The post data structure to for esp_encrypt/decrypt_inline to write to vib_buffer_t opaque unused field, and for post nodes to pick up after dequeue. More...
 
struct  esp_decrypt_packet_data2_t
 
union  esp_post_data_t
 
struct  esp_async_post_next_t
 

Macros

#define ESP_SEQ_MAX   (4294967295UL)
 
#define ESP_MAX_BLOCK_SIZE   (16)
 
#define ESP_MAX_IV_SIZE   (16)
 
#define ESP_MAX_ICV_SIZE   (32)
 
#define esp_post_data(b)
 
#define esp_post_data2(b)
 

Typedefs

typedef struct esp_aead_t_ esp_aead_t
 AES GCM Additional Authentication data. More...
 

Functions

typedef CLIB_PACKED (struct { ip4_header_t ip4;esp_header_t esp;}) ip4_and_esp_header_t
 
typedef CLIB_PACKED (struct { ip4_header_t ip4;udp_header_t udp;esp_header_t esp;}) ip4_and_udp_and_esp_header_t
 
typedef CLIB_PACKED (struct { ip6_header_t ip6;esp_header_t esp;}) ip6_and_esp_header_t
 
u8format_esp_header (u8 *s, va_list *args)
 
static int esp_seq_advance (ipsec_sa_t *sa)
 
static u16 esp_aad_fill (u8 *data, const esp_header_t *esp, const ipsec_sa_t *sa)
 
 STATIC_ASSERT_SIZEOF (esp_decrypt_packet_data_t, 3 *sizeof(u64))
 
 STATIC_ASSERT (sizeof(esp_post_data_t)<=STRUCT_SIZE_OF(vnet_buffer_opaque_t, unused), "Custom meta-data too large for vnet_buffer_opaque_t")
 
 STATIC_ASSERT (sizeof(esp_decrypt_packet_data2_t)<=STRUCT_SIZE_OF(vnet_buffer_opaque2_t, unused), "Custom meta-data too large for vnet_buffer_opaque2_t")
 

Variables

esp_async_post_next_t esp_encrypt_async_next
 
esp_async_post_next_t esp_decrypt_async_next
 

Macro Definition Documentation

◆ ESP_MAX_BLOCK_SIZE

#define ESP_MAX_BLOCK_SIZE   (16)

Definition at line 76 of file esp.h.

◆ ESP_MAX_ICV_SIZE

#define ESP_MAX_ICV_SIZE   (32)

Definition at line 78 of file esp.h.

◆ ESP_MAX_IV_SIZE

#define ESP_MAX_IV_SIZE   (16)

Definition at line 77 of file esp.h.

◆ esp_post_data

#define esp_post_data (   b)
Value:
((esp_post_data_t *)((u8 *)((b)->opaque) \
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:70
unsigned char u8
Definition: types.h:56
Definition: esp.h:169

Definition at line 179 of file esp.h.

◆ esp_post_data2

#define esp_post_data2 (   b)
Value:
((esp_decrypt_packet_data2_t *)((u8 *)((b)->opaque2) \
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:70
unsigned char u8
Definition: types.h:56

Definition at line 187 of file esp.h.

◆ ESP_SEQ_MAX

#define ESP_SEQ_MAX   (4294967295UL)

Definition at line 75 of file esp.h.

Typedef Documentation

◆ esp_aead_t

typedef struct esp_aead_t_ esp_aead_t

AES GCM Additional Authentication data.

Function Documentation

◆ CLIB_PACKED() [1/3]

typedef CLIB_PACKED ( struct { ip4_header_t ip4;esp_header_t esp;}  )

◆ CLIB_PACKED() [2/3]

typedef CLIB_PACKED ( struct { ip4_header_t ip4;udp_header_t udp;esp_header_t esp;}  )

◆ CLIB_PACKED() [3/3]

typedef CLIB_PACKED ( struct { ip6_header_t ip6;esp_header_t esp;}  )

◆ esp_aad_fill()

static u16 esp_aad_fill ( u8 data,
const esp_header_t esp,
const ipsec_sa_t sa 
)
inlinestatic

Definition at line 109 of file esp.h.

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◆ esp_seq_advance()

static int esp_seq_advance ( ipsec_sa_t sa)
inlinestatic

Definition at line 84 of file esp.h.

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◆ format_esp_header()

u8* format_esp_header ( u8 s,
va_list *  args 
)

Definition at line 23 of file esp_format.c.

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◆ STATIC_ASSERT() [1/2]

STATIC_ASSERT ( sizeof(esp_post_data_t)<=STRUCT_SIZE_OF(vnet_buffer_opaque_t, unused)  ,
"Custom meta-data too large for vnet_buffer_opaque_t  
)

◆ STATIC_ASSERT() [2/2]

STATIC_ASSERT ( sizeof(esp_decrypt_packet_data2_t)<=STRUCT_SIZE_OF(vnet_buffer_opaque2_t, unused)  ,
"Custom meta-data too large for vnet_buffer_opaque2_t  
)

◆ STATIC_ASSERT_SIZEOF()

STATIC_ASSERT_SIZEOF ( esp_decrypt_packet_data_t  ,
3 *  sizeofu64 
)

Variable Documentation

◆ esp_decrypt_async_next

esp_async_post_next_t esp_decrypt_async_next

Definition at line 30 of file ipsec.c.

◆ esp_encrypt_async_next

esp_async_post_next_t esp_encrypt_async_next

Definition at line 29 of file ipsec.c.