ip_packet.h File Reference

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Macros
#define	ip_protocol(n, s)   IP_PROTOCOL_##s = n,
#define	ip_port(s, n)   IP_PORT_##s = n,
#define	foreach_ip_builtin_multicast_group
#define	foreach_ip_dscp
	The set of RFC defined DSCP values. More...
#define	IP_PACKET_TC_FIELD_DSCP_BIT_SHIFT   2
	IP DSCP bit shift The ECN occupies the 2 least significant bits of the TC field. More...
#define	IP_PACKET_TC_FIELD_ECN_MASK   0x03
#define	foreach_ip_ecn
	The set of RFC defined DSCP values. More...
#define	ip_csum_update(sum, old, new, type, field)

Typedefs
typedef enum ip_protocol	ip_protocol_t
typedef enum ip_dscp_t_	ip_dscp_t
typedef enum ip_ecn_t_	ip_ecn_t
typedef uword	ip_csum_t

Enumerations
enum	ip_protocol { ip_protocol, ip_protocol }
enum	ip_port_t { ip_port, ip_port }
enum	ip_builtin_protocol_t { IP_BUILTIN_PROTOCOL_UDP, IP_BUILTIN_PROTOCOL_ICMP, IP_BUILTIN_PROTOCOL_UNKNOWN }
enum	ip_multicast_group_t { foreach_ip_builtin_multicast_group }
enum	ip_dscp_t_ { foreach_ip_dscp }
enum	ip_ecn_t_ { foreach_ip_ecn }

Functions
u8 *	format_ip_dscp (u8 *s, va_list *va)
	STATIC_ASSERT_SIZEOF (ip_ecn_t, 1)
u8 *	format_ip_ecn (u8 *s, va_list *va)
static_always_inline u16	ip_csum (void *data, u16 n_left)
static ip_csum_t	ip_csum_with_carry (ip_csum_t sum, ip_csum_t x)
static ip_csum_t	ip_csum_add_even (ip_csum_t c, ip_csum_t x)
static ip_csum_t	ip_csum_sub_even (ip_csum_t c, ip_csum_t x)
static ip_csum_t	ip_csum_update_inline (ip_csum_t sum, ip_csum_t old, ip_csum_t new, u32 field_byte_offset, u32 field_n_bytes)
static u16	ip_csum_fold (ip_csum_t c)
static ip_csum_t	ip_incremental_checksum (ip_csum_t sum, void *_data, uword n_bytes)
static u16	ip_csum_and_memcpy_fold (ip_csum_t sum, void *dst)

Variables
ip_csum_t(*	vnet_incremental_checksum_fp )(ip_csum_t, void *, uword)

Macro Definition Documentation

foreach_ip_builtin_multicast_group

#define foreach_ip_builtin_multicast_group

Value:

_ (1, all_hosts_on_subnet)                      \
  _ (2, all_routers_on_subnet)                  \
  _ (4, dvmrp)                                  \
  _ (5, ospf_all_routers)                       \
  _ (6, ospf_designated_routers)                \
  _ (13, pim)                                   \
  _ (18, vrrp)                                  \
  _ (102, hsrp)                                 \
  _ (22, igmp_v3)

Definition at line 69 of file ip_packet.h.

foreach_ip_dscp

#define foreach_ip_dscp

Value:

_(0, CS0)                                   \
  _(8, CS1)                                   \
  _(10, AF11)                                 \
  _(12, AF12)                                 \
  _(14, AF13)                                 \
  _(16, CS2)                                  \
  _(18, AF21)                                 \
  _(20, AF22)                                 \
  _(22, AF23)                                 \
  _(24, CS3)                                  \
  _(26, AF31)                                 \
  _(28, AF32)                                 \
  _(30, AF33)                                 \
  _(32, CS4)                                  \
  _(34, AF41)                                 \
  _(36, AF42)                                 \
  _(38, AF43)                                 \
  _(40, CS5)                                  \
  _(46, EF)                                   \
  _(48, CS6)                                  \
  _(50, CS7)

The set of RFC defined DSCP values.

Definition at line 91 of file ip_packet.h.

foreach_ip_ecn

#define foreach_ip_ecn

Value:

_(0, NON_ECN)                               \
  _(1, ECT_0)                                 \
  _(2, ECT_1)                                 \
  _(3, CE)

The set of RFC defined DSCP values.

Definition at line 133 of file ip_packet.h.

ip_csum_update

#define ip_csum_update	(		sum,
			old,
			new,
			type,
			field
	)

Value:

ip_csum_update_inline ((sum), (old), (new),                     \
                         STRUCT_OFFSET_OF (type, field),        \
                         STRUCT_SIZE_OF (type, field))

Definition at line 294 of file ip_packet.h.

IP_PACKET_TC_FIELD_DSCP_BIT_SHIFT

#define IP_PACKET_TC_FIELD_DSCP_BIT_SHIFT   2

IP DSCP bit shift The ECN occupies the 2 least significant bits of the TC field.

Definition at line 127 of file ip_packet.h.

IP_PACKET_TC_FIELD_ECN_MASK

#define IP_PACKET_TC_FIELD_ECN_MASK   0x03

Definition at line 128 of file ip_packet.h.

ip_port

#define ip_port	(		s,
			n
	)		IP_PORT_##s = n,

Definition at line 56 of file ip_packet.h.

ip_protocol

#define ip_protocol	(		n,
			s
	)		IP_PROTOCOL_##s = n,

Definition at line 48 of file ip_packet.h.

Typedef Documentation

ip_csum_t

typedef uword ip_csum_t

Definition at line 244 of file ip_packet.h.

ip_dscp_t

typedef enum ip_dscp_t_ ip_dscp_t

ip_ecn_t

typedef enum ip_ecn_t_ ip_ecn_t

ip_protocol_t

typedef enum ip_protocol ip_protocol_t

Enumeration Type Documentation

ip_builtin_protocol_t

enum ip_builtin_protocol_t

Enumerator
IP_BUILTIN_PROTOCOL_UDP
IP_BUILTIN_PROTOCOL_ICMP
IP_BUILTIN_PROTOCOL_UNKNOWN

Definition at line 62 of file ip_packet.h.

ip_dscp_t_

enum ip_dscp_t_

Enumerator
foreach_ip_dscp

Definition at line 114 of file ip_packet.h.

ip_ecn_t_

enum ip_ecn_t_

Enumerator
foreach_ip_ecn

Definition at line 139 of file ip_packet.h.

ip_multicast_group_t

enum ip_multicast_group_t

Enumerator
foreach_ip_builtin_multicast_group

Definition at line 80 of file ip_packet.h.

ip_port_t

enum ip_port_t

Enumerator
ip_port
ip_port

Definition at line 54 of file ip_packet.h.

ip_protocol

enum ip_protocol

Enumerator
ip_protocol
ip_protocol

Definition at line 46 of file ip_packet.h.

Function Documentation

format_ip_dscp()

u8* format_ip_dscp	(	u8 *	s,
		va_list *	va
	)

Definition at line 136 of file ip.c.

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format_ip_ecn()

u8* format_ip_ecn	(	u8 *	s,
		va_list *	va
	)

Definition at line 153 of file ip.c.

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ip_csum()

static_always_inline u16 ip_csum	(	void *	data,
		u16	n_left
	)

Definition at line 153 of file ip_packet.h.

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ip_csum_add_even()

static ip_csum_t ip_csum_add_even ( ip_csum_t  c, ip_csum_t  x  )

inlinestatic

Definition at line 255 of file ip_packet.h.

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ip_csum_and_memcpy_fold()

static u16 ip_csum_and_memcpy_fold ( ip_csum_t  sum, void *  dst  )

inlinestatic

Definition at line 324 of file ip_packet.h.

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ip_csum_fold()

static u16 ip_csum_fold ( ip_csum_t  c )

inlinestatic

Definition at line 300 of file ip_packet.h.

ip_csum_sub_even()

static ip_csum_t ip_csum_sub_even ( ip_csum_t  c, ip_csum_t  x  )

inlinestatic

Definition at line 272 of file ip_packet.h.

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ip_csum_update_inline()

static ip_csum_t ip_csum_update_inline ( ip_csum_t  sum, ip_csum_t  old, ip_csum_t  new, u32  field_byte_offset, u32  field_n_bytes  )

inlinestatic

Definition at line 278 of file ip_packet.h.

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ip_csum_with_carry()

static ip_csum_t ip_csum_with_carry ( ip_csum_t  sum, ip_csum_t  x  )

inlinestatic

Definition at line 247 of file ip_packet.h.

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ip_incremental_checksum()

static ip_csum_t ip_incremental_checksum ( ip_csum_t  sum, void *  _data, uword  n_bytes  )

inlinestatic

Definition at line 318 of file ip_packet.h.

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STATIC_ASSERT_SIZEOF()

STATIC_ASSERT_SIZEOF	(	ip_ecn_t	,
		1
	)

Variable Documentation

vnet_incremental_checksum_fp

ip_csum_t(* vnet_incremental_checksum_fp) (ip_csum_t, void *, uword)

Definition at line 124 of file ip_checksum.c.