tcp_sack.h File Reference

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Macros
#define	tcp_scoreboard_trace_add(_tc, _ack)

Functions
static u32	scoreboard_hole_index (sack_scoreboard_t *sb, sack_scoreboard_hole_t *hole)
static u32	scoreboard_hole_bytes (sack_scoreboard_hole_t *hole)
static sack_scoreboard_hole_t *	scoreboard_get_hole (sack_scoreboard_t *sb, u32 index)
static sack_scoreboard_hole_t *	scoreboard_next_hole (sack_scoreboard_t *sb, sack_scoreboard_hole_t *hole)
static sack_scoreboard_hole_t *	scoreboard_prev_hole (sack_scoreboard_t *sb, sack_scoreboard_hole_t *hole)
static sack_scoreboard_hole_t *	scoreboard_first_hole (sack_scoreboard_t *sb)
static sack_scoreboard_hole_t *	scoreboard_last_hole (sack_scoreboard_t *sb)
sack_scoreboard_hole_t *	scoreboard_next_rxt_hole (sack_scoreboard_t *sb, sack_scoreboard_hole_t *start, u8 have_sent_1_smss, u8 *can_rescue, u8 *snd_limited)
	Figure out the next hole to retransmit. More...
void	scoreboard_clear (sack_scoreboard_t *sb)
void	scoreboard_clear_reneging (sack_scoreboard_t *sb, u32 start, u32 end)
void	scoreboard_init (sack_scoreboard_t *sb)
void	scoreboard_init_rxt (sack_scoreboard_t *sb, u32 snd_una)
void	tcp_update_sack_list (tcp_connection_t *tc, u32 start, u32 end)
	Build SACK list as per RFC2018. More...
u32	tcp_sack_list_bytes (tcp_connection_t *tc)
void	tcp_rcv_sacks (tcp_connection_t *tc, u32 ack)
u8 *	tcp_scoreboard_replay (u8 *s, tcp_connection_t *tc, u8 verbose)
u8	tcp_scoreboard_is_sane_post_recovery (tcp_connection_t *tc)
	Test that scoreboard is sane after recovery. More...

Variables
format_function_t	format_tcp_scoreboard

Macro Definition Documentation

tcp_scoreboard_trace_add

#define tcp_scoreboard_trace_add	(		_tc,
			_ack
	)

Definition at line 96 of file tcp_sack.h.

Function Documentation

scoreboard_clear()

void scoreboard_clear

(

sack_scoreboard_t *

sb

)

Definition at line 277 of file tcp_sack.c.

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scoreboard_clear_reneging()

void scoreboard_clear_reneging	(	sack_scoreboard_t *	sb,
		u32	start,
		u32	end
	)

Definition at line 297 of file tcp_sack.c.

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scoreboard_first_hole()

static sack_scoreboard_hole_t* scoreboard_first_hole ( sack_scoreboard_t *  sb )

inlinestatic

Definition at line 59 of file tcp_sack.h.

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scoreboard_get_hole()

static sack_scoreboard_hole_t* scoreboard_get_hole ( sack_scoreboard_t *  sb, u32  index  )

inlinestatic

Definition at line 35 of file tcp_sack.h.

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scoreboard_hole_bytes()

static u32 scoreboard_hole_bytes ( sack_scoreboard_hole_t *  hole )

inlinestatic

Definition at line 29 of file tcp_sack.h.

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scoreboard_hole_index()

static u32 scoreboard_hole_index ( sack_scoreboard_t *  sb, sack_scoreboard_hole_t *  hole  )

inlinestatic

Definition at line 22 of file tcp_sack.h.

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scoreboard_init()

void scoreboard_init

(

sack_scoreboard_t *

sb

)

Definition at line 268 of file tcp_sack.c.

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scoreboard_init_rxt()

void scoreboard_init_rxt	(	sack_scoreboard_t *	sb,
		u32	snd_una
	)

Definition at line 254 of file tcp_sack.c.

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scoreboard_last_hole()

static sack_scoreboard_hole_t* scoreboard_last_hole ( sack_scoreboard_t *  sb )

inlinestatic

Definition at line 67 of file tcp_sack.h.

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scoreboard_next_hole()

static sack_scoreboard_hole_t* scoreboard_next_hole ( sack_scoreboard_t *  sb, sack_scoreboard_hole_t *  hole  )

inlinestatic

Definition at line 43 of file tcp_sack.h.

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scoreboard_next_rxt_hole()

sack_scoreboard_hole_t* scoreboard_next_rxt_hole	(	sack_scoreboard_t *	sb,
		sack_scoreboard_hole_t *	start,
		u8	have_unsent,
		u8 *	can_rescue,
		u8 *	snd_limited
	)

Figure out the next hole to retransmit.

Follows logic proposed in RFC6675 Sec. 4, NextSeg()

Definition at line 194 of file tcp_sack.c.

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scoreboard_prev_hole()

static sack_scoreboard_hole_t* scoreboard_prev_hole ( sack_scoreboard_t *  sb, sack_scoreboard_hole_t *  hole  )

inlinestatic

Definition at line 51 of file tcp_sack.h.

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tcp_rcv_sacks()

void tcp_rcv_sacks	(	tcp_connection_t *	tc,
		u32	ack
	)

Definition at line 326 of file tcp_sack.c.

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tcp_sack_list_bytes()

u32 tcp_sack_list_bytes

(

tcp_connection_t *

tc

)

Definition at line 617 of file tcp_sack.c.

tcp_scoreboard_is_sane_post_recovery()

u8 tcp_scoreboard_is_sane_post_recovery

(

tcp_connection_t *

tc

)

Test that scoreboard is sane after recovery.

Returns 1 if scoreboard is empty or if first hole beyond snd_una.

Definition at line 317 of file tcp_sack.c.

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tcp_scoreboard_replay()

u8* tcp_scoreboard_replay	(	u8 *	s,
		tcp_connection_t *	tc,
		u8	verbose
	)

Definition at line 686 of file tcp_cli.c.

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tcp_update_sack_list()

void tcp_update_sack_list	(	tcp_connection_t *	tc,
		u32	start,
		u32	end
	)

Build SACK list as per RFC2018.

Makes sure the first block contains the segment that generated the current ACK and the following ones are the ones most recently reported in SACK blocks.

Parameters

tc	TCP connection for which the SACK list is updated
start	Start sequence number of the newest SACK block
end	End sequence of the newest SACK block

Definition at line 568 of file tcp_sack.c.

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Variable Documentation

format_tcp_scoreboard

format_function_t format_tcp_scoreboard

Definition at line 109 of file tcp_sack.h.