mirror of
https://git.rtems.org/rtems-libbsd/
synced 2025-10-18 21:29:56 +08:00
Update to FreeBSD head 2018-06-01
Git mirror commit fb63610a69b0eb7f69a201ba05c4c1a7a2739cf9. Update #3472.
This commit is contained in:
Sebastian Huber
@@ -83,123 +83,123 @@ STAILQ_HEAD(tcp_log_stailq, tcp_log_mem);
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/*
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* Tcp control block, one per tcp; fields:
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* Organized for 16 byte cacheline efficiency.
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* Organized for 64 byte cacheline efficiency based
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* on common tcp_input/tcp_output processing.
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*/
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struct tcpcb {
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struct tsegqe_head t_segq; /* segment reassembly queue */
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int t_segqlen; /* segment reassembly queue length */
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int t_dupacks; /* consecutive dup acks recd */
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struct tcp_timer *t_timers; /* All the TCP timers in one struct */
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/* Cache line 1 */
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struct inpcb *t_inpcb; /* back pointer to internet pcb */
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int t_state; /* state of this connection */
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struct tcp_function_block *t_fb;/* TCP function call block */
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void *t_fb_ptr; /* Pointer to t_fb specific data */
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uint32_t t_maxseg:24, /* maximum segment size */
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t_logstate:8; /* State of "black box" logging */
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uint32_t t_state:4, /* state of this connection */
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bits_spare : 24;
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u_int t_flags;
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struct vnet *t_vnet; /* back pointer to parent vnet */
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tcp_seq snd_una; /* sent but unacknowledged */
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tcp_seq snd_max; /* highest sequence number sent;
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* used to recognize retransmits
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*/
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tcp_seq snd_nxt; /* send next */
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tcp_seq snd_up; /* send urgent pointer */
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tcp_seq snd_wl1; /* window update seg seq number */
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tcp_seq snd_wl2; /* window update seg ack number */
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tcp_seq iss; /* initial send sequence number */
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tcp_seq irs; /* initial receive sequence number */
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uint32_t snd_wnd; /* send window */
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uint32_t snd_cwnd; /* congestion-controlled window */
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uint32_t cl1_spare; /* Spare to round out CL 1 */
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/* Cache line 2 */
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u_int32_t ts_offset; /* our timestamp offset */
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u_int32_t rfbuf_ts; /* recv buffer autoscaling timestamp */
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int rcv_numsacks; /* # distinct sack blks present */
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u_int t_tsomax; /* TSO total burst length limit in bytes */
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u_int t_tsomaxsegcount; /* TSO maximum segment count */
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u_int t_tsomaxsegsize; /* TSO maximum segment size in bytes */
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tcp_seq rcv_nxt; /* receive next */
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tcp_seq rcv_adv; /* advertised window */
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uint32_t rcv_wnd; /* receive window */
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u_int t_flags2; /* More tcpcb flags storage */
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int t_srtt; /* smoothed round-trip time */
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int t_rttvar; /* variance in round-trip time */
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u_int32_t ts_recent; /* timestamp echo data */
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u_char snd_scale; /* window scaling for send window */
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u_char rcv_scale; /* window scaling for recv window */
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u_char snd_limited; /* segments limited transmitted */
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u_char request_r_scale; /* pending window scaling */
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tcp_seq last_ack_sent;
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u_int t_rcvtime; /* inactivity time */
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/* Cache line 3 */
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tcp_seq rcv_up; /* receive urgent pointer */
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uint32_t snd_wnd; /* send window */
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uint32_t snd_cwnd; /* congestion-controlled window */
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int t_segqlen; /* segment reassembly queue length */
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struct tsegqe_head t_segq; /* segment reassembly queue */
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struct mbuf *t_in_pkt;
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struct mbuf *t_tail_pkt;
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struct tcp_timer *t_timers; /* All the TCP timers in one struct */
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struct vnet *t_vnet; /* back pointer to parent vnet */
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uint32_t snd_ssthresh; /* snd_cwnd size threshold for
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* for slow start exponential to
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* linear switch
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*/
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tcp_seq snd_wl1; /* window update seg seq number */
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/* Cache line 4 */
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tcp_seq snd_wl2; /* window update seg ack number */
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tcp_seq irs; /* initial receive sequence number */
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tcp_seq iss; /* initial send sequence number */
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u_int t_acktime;
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u_int ts_recent_age; /* when last updated */
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tcp_seq snd_recover; /* for use in NewReno Fast Recovery */
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u_int t_rcvtime; /* inactivity time */
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u_int t_starttime; /* time connection was established */
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u_int t_rtttime; /* RTT measurement start time */
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tcp_seq t_rtseq; /* sequence number being timed */
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int t_rxtcur; /* current retransmit value (ticks) */
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u_int t_maxseg; /* maximum segment size */
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u_int t_pmtud_saved_maxseg; /* pre-blackhole MSS */
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int t_srtt; /* smoothed round-trip time */
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int t_rttvar; /* variance in round-trip time */
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int t_rxtshift; /* log(2) of rexmt exp. backoff */
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u_int t_rttmin; /* minimum rtt allowed */
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u_int t_rttbest; /* best rtt we've seen */
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u_long t_rttupdated; /* number of times rtt sampled */
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uint32_t max_sndwnd; /* largest window peer has offered */
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int t_softerror; /* possible error not yet reported */
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/* out-of-band data */
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uint16_t cl4_spare; /* Spare to adjust CL 4 */
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char t_oobflags; /* have some */
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char t_iobc; /* input character */
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/* RFC 1323 variables */
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u_char snd_scale; /* window scaling for send window */
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u_char rcv_scale; /* window scaling for recv window */
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u_char request_r_scale; /* pending window scaling */
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u_int32_t ts_recent; /* timestamp echo data */
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u_int ts_recent_age; /* when last updated */
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u_int32_t ts_offset; /* our timestamp offset */
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int t_rxtcur; /* current retransmit value (ticks) */
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tcp_seq last_ack_sent;
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/* experimental */
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int t_rxtshift; /* log(2) of rexmt exp. backoff */
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u_int t_rtttime; /* RTT measurement start time */
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tcp_seq t_rtseq; /* sequence number being timed */
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u_int t_starttime; /* time connection was established */
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u_int t_pmtud_saved_maxseg; /* pre-blackhole MSS */
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u_int t_rttmin; /* minimum rtt allowed */
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u_int t_rttbest; /* best rtt we've seen */
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int t_softerror; /* possible error not yet reported */
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uint32_t max_sndwnd; /* largest window peer has offered */
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/* Cache line 5 */
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uint32_t snd_cwnd_prev; /* cwnd prior to retransmit */
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uint32_t snd_ssthresh_prev; /* ssthresh prior to retransmit */
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tcp_seq snd_recover_prev; /* snd_recover prior to retransmit */
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int t_sndzerowin; /* zero-window updates sent */
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u_int t_badrxtwin; /* window for retransmit recovery */
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u_char snd_limited; /* segments limited transmitted */
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/* SACK related state */
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u_long t_rttupdated; /* number of times rtt sampled */
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int snd_numholes; /* number of holes seen by sender */
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u_int t_badrxtwin; /* window for retransmit recovery */
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TAILQ_HEAD(sackhole_head, sackhole) snd_holes;
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/* SACK scoreboard (sorted) */
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tcp_seq snd_fack; /* last seq number(+1) sack'd by rcv'r*/
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int rcv_numsacks; /* # distinct sack blks present */
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struct sackblk sackblks[MAX_SACK_BLKS]; /* seq nos. of sack blocks */
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tcp_seq sack_newdata; /* New data xmitted in this recovery
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episode starts at this seq number */
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struct sackblk sackblks[MAX_SACK_BLKS]; /* seq nos. of sack blocks */
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struct sackhint sackhint; /* SACK scoreboard hint */
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int t_rttlow; /* smallest observerved RTT */
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u_int32_t rfbuf_ts; /* recv buffer autoscaling timestamp */
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int rfbuf_cnt; /* recv buffer autoscaling byte count */
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struct toedev *tod; /* toedev handling this connection */
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int t_sndrexmitpack; /* retransmit packets sent */
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int t_rcvoopack; /* out-of-order packets received */
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void *t_toe; /* TOE pcb pointer */
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int t_bytes_acked; /* # bytes acked during current RTT */
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struct cc_algo *cc_algo; /* congestion control algorithm */
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struct cc_var *ccv; /* congestion control specific vars */
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struct osd *osd; /* storage for Khelp module data */
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int t_bytes_acked; /* # bytes acked during current RTT */
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u_int t_keepinit; /* time to establish connection */
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u_int t_keepidle; /* time before keepalive probes begin */
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u_int t_keepintvl; /* interval between keepalives */
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u_int t_keepcnt; /* number of keepalives before close */
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u_int t_tsomax; /* TSO total burst length limit in bytes */
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u_int t_tsomaxsegcount; /* TSO maximum segment count */
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u_int t_tsomaxsegsize; /* TSO maximum segment size in bytes */
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u_int t_flags2; /* More tcpcb flags storage */
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int t_logstate; /* State of "black box" logging */
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struct tcp_log_stailq t_logs; /* Log buffer */
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int t_dupacks; /* consecutive dup acks recd */
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int t_lognum; /* Number of log entries */
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uint32_t t_logsn; /* Log "serial number" */
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struct tcp_log_stailq t_logs; /* Log buffer */
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struct tcp_log_id_node *t_lin;
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struct tcp_log_id_bucket *t_lib;
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const char *t_output_caller; /* Function that called tcp_output */
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struct tcp_function_block *t_fb;/* TCP function call block */
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void *t_fb_ptr; /* Pointer to t_fb specific data */
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uint32_t t_logsn; /* Log "serial number" */
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uint8_t t_tfo_client_cookie_len; /* TCP Fast Open client cookie length */
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unsigned int *t_tfo_pending; /* TCP Fast Open server pending counter */
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union {
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@@ -257,14 +257,19 @@ struct tcptemp {
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struct tcp_function_block {
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char tfb_tcp_block_name[TCP_FUNCTION_NAME_LEN_MAX];
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int (*tfb_tcp_output)(struct tcpcb *);
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int (*tfb_tcp_output_wtime)(struct tcpcb *, const struct timeval *);
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void (*tfb_tcp_do_segment)(struct mbuf *, struct tcphdr *,
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struct socket *, struct tcpcb *,
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int, int, uint8_t,
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int);
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void (*tfb_tcp_hpts_do_segment)(struct mbuf *, struct tcphdr *,
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struct socket *, struct tcpcb *,
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int, int, uint8_t,
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int, int, struct timeval *);
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int (*tfb_tcp_ctloutput)(struct socket *so, struct sockopt *sopt,
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struct inpcb *inp, struct tcpcb *tp);
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/* Optional memory allocation/free routine */
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void (*tfb_tcp_fb_init)(struct tcpcb *);
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int (*tfb_tcp_fb_init)(struct tcpcb *);
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void (*tfb_tcp_fb_fini)(struct tcpcb *, int);
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/* Optional timers, must define all if you define one */
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int (*tfb_tcp_timer_stop_all)(struct tcpcb *);
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@@ -274,6 +279,7 @@ struct tcp_function_block {
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void (*tfb_tcp_timer_stop)(struct tcpcb *, uint32_t);
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void (*tfb_tcp_rexmit_tmr)(struct tcpcb *);
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int (*tfb_tcp_handoff_ok)(struct tcpcb *);
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void (*tfb_tcp_mtu_chg)(struct tcpcb *);
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volatile uint32_t tfb_refcnt;
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uint32_t tfb_flags;
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uint8_t tfb_id;
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@@ -688,11 +694,14 @@ void tcp_inptoxtp(const struct inpcb *, struct xtcpcb *);
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#endif
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/*
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* TCP function name-to-id mapping exported to user-land via sysctl(3).
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* TCP function information (name-to-id mapping, aliases, and refcnt)
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* exported to user-land via sysctl(3).
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*/
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struct tcp_function_id {
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struct tcp_function_info {
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uint32_t tfi_refcnt;
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uint8_t tfi_id;
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char tfi_name[TCP_FUNCTION_NAME_LEN_MAX];
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char tfi_alias[TCP_FUNCTION_NAME_LEN_MAX];
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};
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/*
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@@ -848,9 +857,12 @@ int register_tcp_functions_as_names(struct tcp_function_block *blk,
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int wait, const char *names[], int *num_names);
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int register_tcp_functions_as_name(struct tcp_function_block *blk,
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const char *name, int wait);
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int deregister_tcp_functions(struct tcp_function_block *blk);
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int deregister_tcp_functions(struct tcp_function_block *blk, bool quiesce,
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bool force);
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struct tcp_function_block *find_and_ref_tcp_functions(struct tcp_function_set *fs);
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struct tcp_function_block *find_and_ref_tcp_fb(struct tcp_function_block *blk);
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void tcp_switch_back_to_default(struct tcpcb *tp);
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struct tcp_function_block *
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find_and_ref_tcp_fb(struct tcp_function_block *fs);
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int tcp_default_ctloutput(struct socket *so, struct sockopt *sopt, struct inpcb *inp, struct tcpcb *tp);
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uint32_t tcp_maxmtu(struct in_conninfo *, struct tcp_ifcap *);
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