tcp_inlines.h File Reference

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Functions
static tcp_header_t *	tcp_buffer_hdr (vlib_buffer_t *b)
static tcp_connection_t *	tcp_connection_get (u32 conn_index, u32 thread_index)
static tcp_connection_t *	tcp_connection_get_if_valid (u32 conn_index, u32 thread_index)
static void	tcp_connection_set_state (tcp_connection_t *tc, tcp_state_t state)
static tcp_connection_t *	tcp_listener_get (u32 tli)
static tcp_connection_t *	tcp_half_open_connection_get (u32 conn_index)
static u32	tcp_bytes_out (const tcp_connection_t *tc)
	Our estimate of the number of bytes that have left the network. More...
static u32	tcp_flight_size (const tcp_connection_t *tc)
	Our estimate of the number of bytes in flight (pipe size) More...
static u32	tcp_initial_cwnd (const tcp_connection_t *tc)
	Initial cwnd as per RFC5681. More...
static void	tcp_cwnd_accumulate (tcp_connection_t *tc, u32 thresh, u32 bytes)
static u32	tcp_loss_wnd (const tcp_connection_t *tc)
static u32	tcp_available_snd_wnd (const tcp_connection_t *tc)
static u32	tcp_available_output_snd_space (const tcp_connection_t *tc)
static u32	tcp_available_cc_snd_space (const tcp_connection_t *tc)
	Estimate of how many bytes we can still push into the network. More...
static u8	tcp_is_lost_fin (tcp_connection_t *tc)
static u32	tcp_time_tstamp (u32 thread_index)
	Time used to generate timestamps, not the timestamp. More...
static u32	tcp_tstamp (tcp_connection_t *tc)
	Generate timestamp for tcp connection. More...
static f64	tcp_time_now_us (u32 thread_index)
static void	tcp_set_time_now (tcp_worker_ctx_t *wrk, f64 now)
static void	tcp_update_time_now (tcp_worker_ctx_t *wrk)
static tcp_connection_t *	tcp_input_lookup_buffer (vlib_buffer_t *b, u8 thread_index, u32 *error, u8 is_ip4, u8 is_nolookup)
static void	tcp_init_w_buffer (tcp_connection_t *tc, vlib_buffer_t *b, u8 is_ip4)
	Initialize connection by gleaning network and rcv params from buffer. More...
static void	tcp_update_rto (tcp_connection_t *tc)
static u8	tcp_is_descheduled (tcp_connection_t *tc)
static void *	vlib_buffer_push_tcp_net_order (vlib_buffer_t *b, u16 sp, u16 dp, u32 seq, u32 ack, u8 tcp_hdr_opts_len, u8 flags, u16 wnd)
	Push TCP header to buffer. More...
static void *	vlib_buffer_push_tcp (vlib_buffer_t *b, u16 sp_net, u16 dp_net, u32 seq, u32 ack, u8 tcp_hdr_opts_len, u8 flags, u16 wnd)
	Push TCP header to buffer. More...

Function Documentation

tcp_available_cc_snd_space()

static u32 tcp_available_cc_snd_space ( const tcp_connection_t *  tc )

inlinestatic

Estimate of how many bytes we can still push into the network.

Definition at line 166 of file tcp_inlines.h.

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tcp_available_output_snd_space()

static u32 tcp_available_output_snd_space ( const tcp_connection_t *  tc )

inlinestatic

Definition at line 151 of file tcp_inlines.h.

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tcp_available_snd_wnd()

static u32 tcp_available_snd_wnd ( const tcp_connection_t *  tc )

inlinestatic

Definition at line 145 of file tcp_inlines.h.

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tcp_buffer_hdr()

static tcp_header_t* tcp_buffer_hdr ( vlib_buffer_t *  b )

inlinestatic

Definition at line 22 of file tcp_inlines.h.

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tcp_bytes_out()

static u32 tcp_bytes_out ( const tcp_connection_t *  tc )

inlinestatic

Our estimate of the number of bytes that have left the network.

Definition at line 76 of file tcp_inlines.h.

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tcp_connection_get()

static tcp_connection_t* tcp_connection_get ( u32  conn_index, u32  thread_index  )

inlinestatic

Definition at line 30 of file tcp_inlines.h.

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tcp_connection_get_if_valid()

static tcp_connection_t* tcp_connection_get_if_valid ( u32  conn_index, u32  thread_index  )

inlinestatic

Definition at line 39 of file tcp_inlines.h.

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tcp_connection_set_state()

static void tcp_connection_set_state ( tcp_connection_t *  tc, tcp_state_t  state  )

inlinestatic

Definition at line 51 of file tcp_inlines.h.

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tcp_cwnd_accumulate()

static void tcp_cwnd_accumulate ( tcp_connection_t *  tc, u32  thresh, u32  bytes  )

inlinestatic

Definition at line 125 of file tcp_inlines.h.

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tcp_flight_size()

static u32 tcp_flight_size ( const tcp_connection_t *  tc )

inlinestatic

Our estimate of the number of bytes in flight (pipe size)

Definition at line 89 of file tcp_inlines.h.

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tcp_half_open_connection_get()

static tcp_connection_t* tcp_half_open_connection_get ( u32  conn_index )

inlinestatic

Definition at line 67 of file tcp_inlines.h.

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tcp_init_w_buffer()

static void tcp_init_w_buffer ( tcp_connection_t *  tc, vlib_buffer_t *  b, u8  is_ip4  )

inlinestatic

Initialize connection by gleaning network and rcv params from buffer.

Parameters

tc	connection to initialize
b	buffer whose current data is pointing at ip
is_ip4	flag set to 1 if using ip4

Definition at line 333 of file tcp_inlines.h.

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tcp_initial_cwnd()

static u32 tcp_initial_cwnd ( const tcp_connection_t *  tc )

inlinestatic

Initial cwnd as per RFC5681.

Definition at line 105 of file tcp_inlines.h.

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tcp_input_lookup_buffer()

static tcp_connection_t* tcp_input_lookup_buffer ( vlib_buffer_t *  b, u8  thread_index, u32 *  error, u8  is_ip4, u8  is_nolookup  )

inlinestatic

Definition at line 231 of file tcp_inlines.h.

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tcp_is_descheduled()

static u8 tcp_is_descheduled ( tcp_connection_t *  tc )

inlinestatic

Definition at line 385 of file tcp_inlines.h.

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tcp_is_lost_fin()

static u8 tcp_is_lost_fin ( tcp_connection_t *  tc )

inlinestatic

Definition at line 178 of file tcp_inlines.h.

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tcp_listener_get()

static tcp_connection_t* tcp_listener_get ( u32  tli )

inlinestatic

Definition at line 58 of file tcp_inlines.h.

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tcp_loss_wnd()

static u32 tcp_loss_wnd ( const tcp_connection_t *  tc )

inlinestatic

Definition at line 138 of file tcp_inlines.h.

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tcp_set_time_now()

static void tcp_set_time_now ( tcp_worker_ctx_t *  wrk, f64  now  )

inlinestatic

Definition at line 211 of file tcp_inlines.h.

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tcp_time_now_us()

static f64 tcp_time_now_us ( u32  thread_index )

inlinestatic

Definition at line 205 of file tcp_inlines.h.

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tcp_time_tstamp()

static u32 tcp_time_tstamp ( u32  thread_index )

inlinestatic

Time used to generate timestamps, not the timestamp.

Definition at line 189 of file tcp_inlines.h.

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tcp_tstamp()

static u32 tcp_tstamp ( tcp_connection_t *  tc )

inlinestatic

Generate timestamp for tcp connection.

Definition at line 198 of file tcp_inlines.h.

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tcp_update_rto()

static void tcp_update_rto ( tcp_connection_t *  tc )

inlinestatic

Definition at line 378 of file tcp_inlines.h.

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tcp_update_time_now()

static void tcp_update_time_now ( tcp_worker_ctx_t *  wrk )

inlinestatic

Definition at line 221 of file tcp_inlines.h.

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vlib_buffer_push_tcp()

static void* vlib_buffer_push_tcp ( vlib_buffer_t *  b, u16  sp_net, u16  dp_net, u32  seq, u32  ack, u8  tcp_hdr_opts_len, u8  flags, u16  wnd  )

inlinestatic

Push TCP header to buffer.

Parameters

b	- buffer to write the header to
sp_net	- source port net order
dp_net	- destination port net order
seq	- sequence number host order
ack	- ack number host order
tcp_hdr_opts_len	- header and options length in bytes
flags	- header flags
wnd	- window size

Returns

- pointer to start of TCP header

Definition at line 443 of file tcp_inlines.h.

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vlib_buffer_push_tcp_net_order()

static void* vlib_buffer_push_tcp_net_order ( vlib_buffer_t *  b, u16  sp, u16  dp, u32  seq, u32  ack, u8  tcp_hdr_opts_len, u8  flags, u16  wnd  )

inlinestatic

Push TCP header to buffer.

Parameters

vm	- vlib_main
b	- buffer to write the header to
sp_net	- source port net order
dp_net	- destination port net order
seq	- sequence number net order
ack	- ack number net order
tcp_hdr_opts_len	- header and options length in bytes
flags	- header flags
wnd	- window size

Returns

- pointer to start of TCP header

Definition at line 406 of file tcp_inlines.h.

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