ackvec.h File Reference

#include <linux/dccp.h>
#include <linux/compiler.h>
#include <linux/list.h>
#include <linux/types.h>

Go to the source code of this file.

Data Structures
struct	dccp_ackvec
struct	dccp_ackvec_record
struct	dccp_ackvec_parsed

Macros
#define	DCCPAV_NUM_ACKVECS   2
#define	DCCPAV_MAX_ACKVEC_LEN   (DCCP_SINGLE_OPT_MAXLEN * DCCPAV_NUM_ACKVECS)
#define	DCCPAV_MIN_OPTLEN   16
#define	DCCPAV_BURST_THRESH   (DCCPAV_MAX_ACKVEC_LEN / 8)
#define	DCCPAV_MAX_RUNLEN   0x3F

Enumerations
enum	dccp_ackvec_states { DCCPAV_RECEIVED = 0x00, DCCPAV_ECN_MARKED = 0x40, DCCPAV_RESERVED = 0x80, DCCPAV_NOT_RECEIVED = 0xC0 }

Functions
int	dccp_ackvec_init (void)
void	dccp_ackvec_exit (void)
struct dccp_ackvec *	dccp_ackvec_alloc (const gfp_t priority)
void	dccp_ackvec_free (struct dccp_ackvec *av)
void	dccp_ackvec_input (struct dccp_ackvec *av, struct sk_buff *skb)
int	dccp_ackvec_update_records (struct dccp_ackvec *av, u64 seq, u8 sum)
void	dccp_ackvec_clear_state (struct dccp_ackvec *av, const u64 ackno)
u16	dccp_ackvec_buflen (const struct dccp_ackvec *av)
int	dccp_ackvec_parsed_add (struct list_head *head, u8 *vec, u8 len, u8 nonce)
void	dccp_ackvec_parsed_cleanup (struct list_head *parsed_chunks)

Macro Definition Documentation

#define DCCPAV_BURST_THRESH   (DCCPAV_MAX_ACKVEC_LEN / 8)

Definition at line 33 of file ackvec.h.

#define DCCPAV_MAX_ACKVEC_LEN   (DCCP_SINGLE_OPT_MAXLEN * DCCPAV_NUM_ACKVECS)

Definition at line 27 of file ackvec.h.

#define DCCPAV_MAX_RUNLEN   0x3F

Definition at line 41 of file ackvec.h.

#define DCCPAV_MIN_OPTLEN   16

Definition at line 30 of file ackvec.h.

#define DCCPAV_NUM_ACKVECS   2

Definition at line 26 of file ackvec.h.

Enumeration Type Documentation

enum dccp_ackvec_states

Enumerator:

DCCPAV_RECEIVED
DCCPAV_ECN_MARKED
DCCPAV_RESERVED
DCCPAV_NOT_RECEIVED

Definition at line 35 of file ackvec.h.

Function Documentation

struct dccp_ackvec* dccp_ackvec_alloc ( const gfp_t  priority )

read

Definition at line 20 of file ackvec.c.

u16 dccp_ackvec_buflen

(

const struct dccp_ackvec *

av

)

Definition at line 120 of file ackvec.c.

void dccp_ackvec_clear_state	(	struct dccp_ackvec *	av,
		const u64	ackno
	)

dccp_ackvec_clear_state - Perform house-keeping / garbage-collection This routine is called when the peer acknowledges the receipt of Ack Vectors up to and including . While based on on section A.3 of RFC 4340, here are additional precautions to prevent corrupted buffer state. In particular, we use tail_ackno to identify outdated records; it always marks the earliest packet of group (2) in 11.4.2.

Definition at line 285 of file ackvec.c.

void dccp_ackvec_exit

(

void

)

Definition at line 399 of file ackvec.c.

void dccp_ackvec_free

(

struct dccp_ackvec *

av

)

Definition at line 40 of file ackvec.c.

int dccp_ackvec_init

(

void

)

Definition at line 375 of file ackvec.c.

void dccp_ackvec_input	(	struct dccp_ackvec *	av,
		struct sk_buff *	skb
	)

dccp_ackvec_input - Register incoming packet in the buffer

Definition at line 249 of file ackvec.c.

int dccp_ackvec_parsed_add	(	struct list_head *	head,
		u8 *	vec,
		u8	len,
		u8	nonce
	)

Definition at line 350 of file ackvec.c.

void dccp_ackvec_parsed_cleanup

(

struct list_head *

parsed_chunks

)

Definition at line 365 of file ackvec.c.

int dccp_ackvec_update_records	(	struct dccp_ackvec *	av,
		u64	seqno,
		u8	nonce_sum
	)

dccp_ackvec_update_records - Record information about sent Ack Vectors : Ack Vector records to update : Sequence number of the packet carrying the Ack Vector just sent : The sum of all buffer nonces contained in the Ack Vector

Definition at line 54 of file ackvec.c.