Lines Matching +full:timer +full:- +full:cannot +full:- +full:wake +full:- +full:cpu
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
159 if (error == 0 && req->newptr) {
181 if (error == 0 && req->newptr) {
200 * bandwidth and quickly saturates the CPU and network interface
217 * stacks negotiate TS, but don't send them when sending keep-alive segments.
242 "If the TCP stack does pacing, is there a limit (-1 = no, 0 = no pacing N = number of connections)");
244 static int tcp_dgp_limit = -1;
246 &tcp_dgp_limit, -1,
247 "If the TCP stack does DGP, is there a limit (-1 = no, 0 = no dgp N = number of connections)");
273 &tcp_tcbhashsize, 0, "Size of TCP control-block hashtable");
309 if (error == 0 && req->newptr) {
371 tp->t_dsack_pack++;
374 tp->t_dsack_bytes += (end - start);
375 TCPSTAT_ADD(tcps_dsack_bytes, (end - start));
377 tp->t_dsack_tlp_bytes += (start - end);
378 TCPSTAT_ADD(tcps_dsack_bytes, (start - end));
382 tp->t_dsack_bytes += (end - start);
383 TCPSTAT_ADD(tcps_dsack_tlp_bytes, (end - start));
385 tp->t_dsack_tlp_bytes += (start - end);
386 TCPSTAT_ADD(tcps_dsack_tlp_bytes, (start - end));
399 if (strcmp(f->tf_name, fs->function_set_name) == 0) {
400 blk = f->tf_fb;
415 if (f->tf_fb == blk) {
434 refcount_acquire(&blk->tfb_refcnt);
447 refcount_acquire(&rblk->tfb_refcnt);
463 if ((f->tf_fb == blk) &&
464 (strncmp(f->tf_name, blk->tfb_tcp_block_name,
467 strncpy(fs->function_set_name, f->tf_name,
475 fs->function_set_name[TCP_FUNCTION_NAME_LEN_MAX - 1] = '\0';
477 fs->function_set_name[0] = '\0';
490 refcount_acquire(&rblk->tfb_refcnt);
501 KASSERT(tp->t_fb != &tcp_def_funcblk,
502 ("%s: called by the built-in default stack", __func__));
504 if (tp->t_fb->tfb_tcp_timer_stop_all != NULL)
505 tp->t_fb->tfb_tcp_timer_stop_all(tp);
509 * Start by trying the current user-selected
510 * default, unless this stack is the user-selected
514 if (tfb == tp->t_fb) {
515 refcount_release(&tfb->tfb_refcnt);
519 if (tfb != NULL && (*tfb->tfb_tcp_handoff_ok)(tp)) {
520 refcount_release(&tfb->tfb_refcnt);
526 if (tfb->tfb_tcp_fb_init == NULL ||
527 (*tfb->tfb_tcp_fb_init)(tp, &ptr) == 0) {
529 if (tp->t_fb->tfb_tcp_fb_fini != NULL)
530 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 0);
531 refcount_release(&tp->t_fb->tfb_refcnt);
533 tp->t_fb = tfb;
534 tp->t_fb_ptr = ptr;
541 refcount_release(&tfb->tfb_refcnt);
545 * If that wasn't feasible, use the built-in default
553 if ((*tfb->tfb_tcp_handoff_ok)(tp)) {
554 /* The default stack cannot say no */
557 if (tfb->tfb_tcp_fb_init != NULL &&
558 (*tfb->tfb_tcp_fb_init)(tp, &ptr)) {
559 /* The default stack cannot fail */
563 if (tp->t_fb->tfb_tcp_fb_fini != NULL)
564 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 0);
565 refcount_release(&tp->t_fb->tfb_refcnt);
567 tp->t_fb = tfb;
568 tp->t_fb_ptr = ptr;
585 if ((m->m_flags & M_PKTHDR) == 0) {
591 if (m->m_len < off + sizeof(struct udphdr) + thlen &&
599 thlen = th->th_off << 2;
600 if (m->m_len < off + sizeof(struct udphdr) + thlen) {
611 m->m_pkthdr.tcp_tun_port = port = uh->uh_sport;
612 bcopy(th, uh, m->m_len - off);
613 m->m_len -= sizeof(struct udphdr);
614 m->m_pkthdr.len -= sizeof(struct udphdr);
617 * both UDP and TCP for c-sum. So
620 * with the flag (m->m_pkthdr.csum_flags).
622 switch (iph->ip_v) {
625 iph->ip_len = htons(ntohs(iph->ip_len) - sizeof(struct udphdr));
632 ip6->ip6_plen = htons(ntohs(ip6->ip6_plen) - sizeof(struct udphdr));
659 strcpy(fs.function_set_name, blk->tfb_tcp_block_name);
660 fs.pcbcnt = blk->tfb_refcnt;
667 if (error != 0 || req->newptr == NULL)
673 (blk->tfb_flags & TCP_FUNC_BEING_REMOVED)) {
677 if ((blk->tfb_flags & TCP_FUNC_DEFAULT_OK) == 0) {
714 linesz = snprintf(cp, bufsz, "\n%-32s%c %-32s %s\n", "Stack", 'D',
717 bufsz -= linesz;
722 alias = (f->tf_name != f->tf_fb->tfb_tcp_block_name);
723 linesz = snprintf(cp, bufsz, "%-32s%c %-32s %u\n",
724 f->tf_fb->tfb_tcp_block_name,
725 (f->tf_fb == V_tcp_func_set_ptr) ? '*' : ' ',
726 alias ? f->tf_name : "-",
727 f->tf_fb->tfb_refcnt);
733 bufsz -= linesz;
802 /* Already running -- must stop first */
808 /* Already running -- must stop first */
815 curthread->td_ucred, curthread))) {
841 curthread->td_ucred, curthread))) {
877 (req->newptr != NULL)) {
914 if (error == 0 && req->newptr) {
943 if (req->newptr != NULL)
950 if (req->oldptr != NULL) {
965 if (req->oldptr == NULL) {
974 if (req->oldptr != NULL) {
976 tfi.tfi_refcnt = f->tf_fb->tfb_refcnt;
977 tfi.tfi_id = f->tf_fb->tfb_id;
978 (void)strlcpy(tfi.tfi_alias, f->tf_name,
981 f->tf_fb->tfb_tcp_block_name, sizeof(tfi.tfi_name));
996 if (req->oldptr == NULL)
1006 "List TCP function block name-to-ID mappings");
1025 * The init() fuction from the default can *never* return non-zero i.e.
1038 KASSERT(tp->t_state < TCPS_TIME_WAIT,
1040 tp->t_state));
1047 tp->t_flags &= ~TF_GPUTINPROG;
1050 if ((tp->t_state == TCPS_SYN_SENT) ||
1051 (tp->t_state == TCPS_SYN_RECEIVED))
1052 rexmt = tcp_rexmit_initial * tcp_backoff[tp->t_rxtshift];
1054 rexmt = TCP_REXMTVAL(tp) * tcp_backoff[tp->t_rxtshift];
1055 if (tp->t_rxtshift == 0)
1056 tp->t_rxtcur = rexmt;
1058 TCPT_RANGESET(tp->t_rxtcur, rexmt, tp->t_rttmin, TCPTV_REXMTMAX);
1064 if (tp->t_state <= TCPS_LISTEN || tp->t_state >= TCPS_TIME_WAIT)
1068 * Make sure some kind of transmission timer is set if there is
1071 if ((!TCPS_HAVEESTABLISHED(tp->t_state) || sbavail(&so->so_snd) ||
1072 tp->snd_una != tp->snd_max) && !(tcp_timer_active(tp, TT_REXMT) ||
1076 * be in the persist state, set the persist timer. Otherwise,
1077 * set the retransmit timer.
1079 if (TCPS_HAVEESTABLISHED(tp->t_state) && tp->snd_wnd == 0 &&
1080 (int32_t)(tp->snd_nxt - tp->snd_una) <
1081 (int32_t)sbavail(&so->so_snd))
1087 /* All non-embryonic sessions get a keepalive timer. */
1090 TCPS_HAVEESTABLISHED(tp->t_state) ? TP_KEEPIDLE(tp) :
1097 if IN_FASTRECOVERY(tp->t_flags) {
1098 if (tp->sackhint.recover_fs == 0)
1099 tp->sackhint.recover_fs = max(1,
1100 tp->snd_nxt - tp->snd_una);
1121 tp->t_acktime = 0;
1152 hashsize = 1 << (fls(size) - 1);
1162 * blk->tfb_tcp_block_name as a stack name. Therefore, you should
1163 * explicitly include blk->tfb_tcp_block_name in the list of names if
1183 ("%s: Called with non-positive length of name list", __func__));
1192 if ((blk->tfb_tcp_output == NULL) ||
1193 (blk->tfb_tcp_do_segment == NULL) ||
1194 (blk->tfb_tcp_ctloutput == NULL) ||
1195 (blk->tfb_tcp_handoff_ok == NULL) ||
1196 (strlen(blk->tfb_tcp_block_name) == 0)) {
1205 while (--i >= 0)
1219 if (blk->tfb_flags & TCP_FUNC_BEING_REMOVED) {
1223 refcount_init(&blk->tfb_refcnt, 0);
1224 blk->tfb_id = atomic_fetchadd_int(&next_tcp_stack_id, 1);
1233 f[i]->tf_fb = blk;
1234 (void)strlcpy(f[i]->tf_name, names[i], sizeof(f[i]->tf_name));
1247 tcp_fb_cnt--;
1249 f[i]->tf_fb = NULL;
1274 name_list[0] = blk->tfb_tcp_block_name;
1281 * blk->tfb_tcp_block_name.
1317 /* You can't un-register the default */
1335 blk->tfb_flags |= TCP_FUNC_BEING_REMOVED;
1340 if (force && blk->tfb_refcnt) {
1355 if (tp == NULL || tp->t_fb != blk)
1365 if (blk->tfb_refcnt) {
1378 tcp_fb_cnt--;
1379 f->tf_fb = NULL;
1422 tcp_pcap_drain(&(tcpb->t_inpkts));
1423 tcp_pcap_drain(&(tcpb->t_outpkts));
1606 * Cannot free the zone until all tcpcbs are released as we attach
1651 if ((inp->inp_vflag & INP_IPV6) != 0) {
1655 ip6->ip6_flow = (ip6->ip6_flow & ~IPV6_FLOWINFO_MASK) |
1656 (inp->inp_flow & IPV6_FLOWINFO_MASK);
1657 ip6->ip6_vfc = (ip6->ip6_vfc & ~IPV6_VERSION_MASK) |
1660 ip6->ip6_nxt = IPPROTO_TCP;
1662 ip6->ip6_nxt = IPPROTO_UDP;
1663 ip6->ip6_plen = htons(sizeof(struct tcphdr));
1664 ip6->ip6_src = inp->in6p_laddr;
1665 ip6->ip6_dst = inp->in6p_faddr;
1676 ip->ip_v = IPVERSION;
1677 ip->ip_hl = 5;
1678 ip->ip_tos = inp->inp_ip_tos;
1679 ip->ip_len = 0;
1680 ip->ip_id = 0;
1681 ip->ip_off = 0;
1682 ip->ip_ttl = inp->inp_ip_ttl;
1683 ip->ip_sum = 0;
1685 ip->ip_p = IPPROTO_TCP;
1687 ip->ip_p = IPPROTO_UDP;
1688 ip->ip_src = inp->inp_laddr;
1689 ip->ip_dst = inp->inp_faddr;
1692 th->th_sport = inp->inp_lport;
1693 th->th_dport = inp->inp_fport;
1694 th->th_seq = 0;
1695 th->th_ack = 0;
1696 th->th_off = 5;
1698 th->th_win = 0;
1699 th->th_urp = 0;
1700 th->th_sum = 0; /* in_pseudo() is called later for ipv4 */
1716 tcpip_fillheaders(inp, 0, (void *)&t->tt_ipgen, (void *)&t->tt_t);
1764 isipv6 = ((struct ip *)ipgen)->ip_v == (IPV6_VERSION >> 4);
1777 if (isipv6 && ip6 && (ip6->ip6_nxt == IPPROTO_UDP))
1778 port = m->m_pkthdr.tcp_tun_port;
1781 if (ip && (ip->ip_p == IPPROTO_UDP))
1782 port = m->m_pkthdr.tcp_tun_port;
1786 port = tp->t_port;
1792 win = sbspace(&inp->inp_socket->so_rcv);
1793 if (win > TCP_MAXWIN << tp->rcv_scale)
1794 win = TCP_MAXWIN << tp->rcv_scale;
1796 if ((tp->t_flags & TF_NOOPT) == 0)
1803 m->m_data += max_linkhdr;
1813 uh->uh_sport = htons(V_tcp_udp_tunneling_port);
1814 uh->uh_dport = port;
1826 uh->uh_sport = htons(V_tcp_udp_tunneling_port);
1827 uh->uh_dport = port;
1849 n->m_data += max_linkhdr;
1857 xchg(ip6->ip6_dst, ip6->ip6_src, struct in6_addr);
1862 uh->uh_sport = htons(V_tcp_udp_tunneling_port);
1863 uh->uh_dport = port;
1871 xchg(ip->ip_dst.s_addr, ip->ip_src.s_addr, uint32_t);
1876 uh->uh_sport = htons(V_tcp_udp_tunneling_port);
1877 uh->uh_dport = port;
1882 xchg(nth->th_dport, nth->th_sport, uint16_t);
1891 m_freem(m->m_next);
1892 m->m_next = NULL;
1893 m->m_data = (caddr_t)ipgen;
1895 m->m_flags &= ~(M_TSTMP | M_TSTMP_LRO);
1899 xchg(ip6->ip6_dst, ip6->ip6_src, struct in6_addr);
1904 xchg(ip->ip_dst.s_addr, ip->ip_src.s_addr, uint32_t);
1913 nth->th_sport = th->th_sport;
1914 nth->th_dport = th->th_dport;
1916 xchg(nth->th_dport, nth->th_sport, uint16_t);
1933 m->m_len = 0;
1938 m->m_len = tlen;
1944 m->m_next = m_get(M_NOWAIT, MT_DATA);
1945 if (m->m_next) {
1946 optp = mtod(m->m_next, u_char *);
1947 optm = m->m_next;
1957 if (tp->t_flags & TF_RCVD_TSTMP) {
1958 to.to_tsval = tcp_ts_getticks() + tp->ts_offset;
1959 to.to_tsecr = tp->ts_recent;
1963 /* TCP-MD5 (RFC2385). */
1964 if (tp->t_flags & TF_SIGNATURE)
1971 optm->m_len += optlen;
1977 ulen = tlen - sizeof(struct ip6_hdr);
1978 uh->uh_ulen = htons(ulen);
1980 ip6->ip6_flow = htonl(ect << IPV6_FLOWLABEL_LEN);
1981 ip6->ip6_vfc = IPV6_VERSION;
1983 ip6->ip6_nxt = IPPROTO_UDP;
1985 ip6->ip6_nxt = IPPROTO_TCP;
1986 ip6->ip6_plen = htons(tlen - sizeof(*ip6));
1995 ulen = tlen - sizeof(struct ip);
1996 uh->uh_ulen = htons(ulen);
1998 ip->ip_len = htons(tlen);
2000 ip->ip_tos = inp->inp_ip_tos & ~IPTOS_ECN_MASK;
2001 ip->ip_ttl = inp->inp_ip_ttl;
2003 ip->ip_tos = 0;
2004 ip->ip_ttl = V_ip_defttl;
2006 ip->ip_tos |= ect;
2008 ip->ip_p = IPPROTO_UDP;
2010 ip->ip_p = IPPROTO_TCP;
2013 ip->ip_off |= htons(IP_DF);
2016 m->m_pkthdr.len = tlen;
2017 m->m_pkthdr.rcvif = NULL;
2034 nth->th_seq = htonl(seq);
2035 nth->th_ack = htonl(ack);
2036 nth->th_off = (sizeof (struct tcphdr) + optlen) >> 2;
2043 nth->th_win = htons((u_short) (win >> tp->rcv_scale));
2045 nth->th_win = htons((u_short)win);
2046 nth->th_urp = 0;
2061 m->m_pkthdr.csum_flags = CSUM_UDP_IPV6;
2062 m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);
2063 uh->uh_sum = in6_cksum_pseudo(ip6, ulen, IPPROTO_UDP, 0);
2064 nth->th_sum = 0;
2066 m->m_pkthdr.csum_flags = CSUM_TCP_IPV6;
2067 m->m_pkthdr.csum_data = offsetof(struct tcphdr, th_sum);
2068 nth->th_sum = in6_cksum_pseudo(ip6,
2069 tlen - sizeof(struct ip6_hdr), IPPROTO_TCP, 0);
2071 ip6->ip6_hlim = in6_selecthlim(inp, NULL);
2080 uh->uh_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr,
2082 m->m_pkthdr.csum_flags = CSUM_UDP;
2083 m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);
2084 nth->th_sum = 0;
2086 m->m_pkthdr.csum_flags = CSUM_TCP;
2087 m->m_pkthdr.csum_data = offsetof(struct tcphdr, th_sum);
2088 nth->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr,
2089 htons((u_short)(tlen - sizeof(struct ip) + ip->ip_p)));
2105 log.u_bbr.pkts_out = tp->t_maxseg;
2132 (tp->t_state == TCPS_CLOSED ||
2133 (tp->t_state > TCPS_LISTEN && tp->t_port != port)),
2137 ntohs(port), tcpstates[tp->t_state]));
2150 output_ret = ip6_output(m, inp ? inp->in6p_outputopts : NULL,
2164 lgb->tlb_errno = output_ret;
2183 if (tp->t_challenge_ack_end < now) {
2184 tp->t_challenge_ack_cnt = 0;
2185 tp->t_challenge_ack_end = now +
2192 if (tp->t_challenge_ack_cnt < V_tcp_ack_war_cnt) {
2194 tp->t_challenge_ack_cnt++;
2200 tcp_respond(tp, mtod(m, void *), th, m, tp->rcv_nxt,
2201 tp->snd_nxt, TH_ACK);
2202 tp->last_ack_sent = tp->rcv_nxt;
2218 int isipv6 = (inp->inp_vflag & INP_IPV6) != 0;
2226 bzero(&tp->t_start_zero, t_zero_size);
2229 tp->t_ccv.tp = tp;
2233 KASSERT(listening_tcb->t_fb != NULL,
2234 ("tcp_newtcpcb: listening_tcb->t_fb is NULL"));
2235 if (listening_tcb->t_fb->tfb_flags & TCP_FUNC_BEING_REMOVED) {
2239 tp->t_fb = listening_tcb->t_fb;
2241 tp->t_fb = V_tcp_func_set_ptr;
2243 refcount_acquire(&tp->t_fb->tfb_refcnt);
2244 KASSERT((tp->t_fb->tfb_flags & TCP_FUNC_BEING_REMOVED) == 0,
2249 if (CC_ALGO(listening_tcb)->flags & CC_MODULE_BEING_REMOVED) {
2251 if (tp->t_fb->tfb_tcp_fb_fini)
2252 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 1);
2253 refcount_release(&tp->t_fb->tfb_refcnt);
2261 if (CC_ALGO(tp)->cb_init != NULL)
2262 if (CC_ALGO(tp)->cb_init(&tp->t_ccv, NULL) > 0) {
2264 if (tp->t_fb->tfb_tcp_fb_fini)
2265 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 1);
2266 refcount_release(&tp->t_fb->tfb_refcnt);
2271 if (khelp_init_osd(HELPER_CLASS_TCP, &tp->t_osd)) {
2272 if (CC_ALGO(tp)->cb_destroy != NULL)
2273 CC_ALGO(tp)->cb_destroy(&tp->t_ccv);
2276 if (tp->t_fb->tfb_tcp_fb_fini)
2277 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 1);
2278 refcount_release(&tp->t_fb->tfb_refcnt);
2283 TAILQ_INIT(&tp->t_segq);
2284 STAILQ_INIT(&tp->t_inqueue);
2285 tp->t_maxseg =
2294 tp->t_hpts_cpu = HPTS_CPU_NONE;
2295 tp->t_lro_cpu = HPTS_CPU_NONE;
2297 callout_init_rw(&tp->t_callout, &inp->inp_lock,
2300 tp->t_timers[i] = SBT_MAX;
2307 tp->t_flags = (TF_REQ_SCALE|TF_REQ_TSTMP);
2310 tp->t_flags = TF_REQ_SCALE;
2313 tp->t_flags = TF_REQ_TSTMP;
2317 tp->t_flags |= TF_SACK_PERMIT;
2318 TAILQ_INIT(&tp->snd_holes);
2325 tp->t_srtt = TCPTV_SRTTBASE;
2326 tp->t_rttvar = ((tcp_rexmit_initial - TCPTV_SRTTBASE) << TCP_RTTVAR_SHIFT) / 4;
2327 tp->t_rttmin = tcp_rexmit_min;
2328 tp->t_rxtcur = tcp_rexmit_initial;
2329 tp->snd_cwnd = TCP_MAXWIN << TCP_MAX_WINSHIFT;
2330 tp->snd_ssthresh = TCP_MAXWIN << TCP_MAX_WINSHIFT;
2331 tp->t_rcvtime = ticks;
2333 tp->t_tmr_granularity = TCP_TMR_GRANULARITY_TICKS;
2337 * which may match an IPv4-mapped IPv6 address.
2339 inp->inp_ip_ttl = V_ip_defttl;
2347 /* Initialize the per-TCPCB log data. */
2350 tp->t_pacing_rate = -1;
2351 if (tp->t_fb->tfb_tcp_fb_init) {
2352 if ((*tp->t_fb->tfb_tcp_fb_init)(tp, &tp->t_fb_ptr)) {
2353 if (CC_ALGO(tp)->cb_destroy != NULL)
2354 CC_ALGO(tp)->cb_destroy(&tp->t_ccv);
2358 khelp_destroy_osd(&tp->t_osd);
2360 refcount_release(&tp->t_fb->tfb_refcnt);
2366 tp->t_stats = stats_blob_alloc(V_tcp_perconn_stats_dflt_tpl, 0);
2369 tp->t_flags |= TF_LRD;
2387 if (TCPS_HAVERCVDSYN(tp->t_state)) {
2394 if (errno == ETIMEDOUT && tp->t_softerror)
2395 errno = tp->t_softerror;
2396 so->so_error = errno;
2407 bool isipv6 = (inp->inp_vflag & INP_IPV6) != 0;
2411 MPASS(!callout_active(&tp->t_callout));
2412 MPASS(TAILQ_EMPTY(&tp->snd_holes));
2419 if (tp->t_flags & TF_TOE)
2424 tcp_pcap_drain(&(tp->t_inpkts));
2425 tcp_pcap_drain(&(tp->t_outpkts));
2429 if (CC_ALGO(tp)->cb_destroy != NULL)
2430 CC_ALGO(tp)->cb_destroy(&tp->t_ccv);
2436 khelp_destroy_osd(&tp->t_osd);
2439 stats_blob_destroy(tp->t_stats);
2443 if ((m = STAILQ_FIRST(&tp->t_inqueue)) != NULL) {
2446 STAILQ_INIT(&tp->t_inqueue);
2447 STAILQ_FOREACH_FROM_SAFE(m, &tp->t_inqueue, m_stailqpkt, prev)
2450 TCPSTATES_DEC(tp->t_state);
2452 if (tp->t_fb->tfb_tcp_fb_fini)
2453 (*tp->t_fb->tfb_tcp_fb_fini)(tp, 1);
2473 if (tp->t_rttupdated >= 4) {
2484 ssthresh = tp->snd_ssthresh;
2485 if (ssthresh != 0 && ssthresh < so->so_snd.sb_hiwat / 2) {
2490 ssthresh = (ssthresh + tp->t_maxseg / 2) / tp->t_maxseg;
2493 ssthresh *= (tp->t_maxseg +
2507 metrics.hc_rtt = tp->t_srtt;
2508 metrics.hc_rttvar = tp->t_rttvar;
2509 metrics.hc_cwnd = tp->snd_cwnd;
2513 tcp_hc_update(&inp->inp_inc, &metrics);
2516 refcount_release(&tp->t_fb->tfb_refcnt);
2532 if (tp->t_state == TCPS_LISTEN)
2537 * sockets as well as passively-created TFO sockets that transition
2540 if (tp->t_tfo_pending) {
2541 tcp_fastopen_decrement_counter(tp->t_tfo_pending);
2542 tp->t_tfo_pending = NULL;
2545 if (tp->t_fb->tfb_tcp_timer_stop_all != NULL)
2546 tp->t_fb->tfb_tcp_timer_stop_all(tp);
2549 if (tp->t_state != TCPS_CLOSED)
2551 KASSERT(inp->inp_socket != NULL, ("tcp_close: inp_socket NULL"));
2554 if (inp->inp_flags & INP_SOCKREF) {
2555 inp->inp_flags &= ~INP_SOCKREF;
2565 * store error as soft error, but wake up user
2568 * Do not wake up user since there currently is no mechanism for
2569 * reporting soft errors (yet - a kqueue filter may be added).
2588 if (tp->t_state == TCPS_ESTABLISHED &&
2591 if (inp->inp_route.ro_nh) {
2592 NH_FREE(inp->inp_route.ro_nh);
2593 inp->inp_route.ro_nh = (struct nhop_object *)NULL;
2596 } else if (tp->t_state < TCPS_ESTABLISHED && tp->t_rxtshift > 3 &&
2597 tp->t_softerror) {
2604 tp->t_softerror = error;
2608 wakeup( &so->so_timeo);
2623 if (req->newptr != NULL)
2626 if (req->oldptr == NULL) {
2632 req->oldidx = 2 * (sizeof xig) + n * sizeof(struct xtcpcb);
2654 if (inp->inp_gencnt <= xig.xig_gen &&
2655 cr_canseeinpcb(req->td->td_ucred, inp) == 0) {
2701 error = priv_check(req->td, PRIV_NETINET_GETCRED);
2713 error = cr_canseeinpcb(req->td->td_ucred, inp);
2715 cru2x(inp->inp_cred, &xuc);
2743 error = priv_check(req->td, PRIV_NETINET_GETCRED);
2779 error = cr_canseeinpcb(req->td->td_ucred, inp);
2781 cru2x(inp->inp_cred, &xuc);
2797 /* Path MTU to try next when a fragmentation-needed message is received. */
2801 int mtu = ntohs(icp->icmp_nextmtu);
2805 mtu = ip_next_mtu(ntohs(ip->ip_len), 1);
2838 if (V_icmp_may_rst && icp->icmp_type == ICMP_TIMXCEED)
2847 ip = &icp->icmp_ip;
2848 th = (struct tcphdr *)((caddr_t)ip + (ip->ip_hl << 2));
2849 icmp_tcp_seq = th->th_seq;
2850 inp = in_pcblookup(&V_tcbinfo, ip->ip_dst, th->th_dport, ip->ip_src,
2851 th->th_sport, INPLOOKUP_WLOCKPCB, NULL);
2855 if (tp->t_flags & TF_TOE && errno == EMSGSIZE) {
2865 if (tp->t_port != port)
2867 if (SEQ_GEQ(ntohl(icmp_tcp_seq), tp->snd_una) &&
2868 SEQ_LT(ntohl(icmp_tcp_seq), tp->snd_max)) {
2880 if (mtu < tp->t_maxseg +
2883 inc.inc_faddr = ip->ip_dst;
2885 inp->inp_inc.inc_fibnum;
2894 inc.inc_fport = th->th_dport;
2895 inc.inc_lport = th->th_sport;
2896 inc.inc_faddr = ip->ip_dst;
2897 inc.inc_laddr = ip->ip_src;
2922 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
2923 inner_ip = &icmp->icmp_ip;
2924 i_hlen = inner_ip->ip_hl << 2;
2925 o_len = ntohs(outer_ip->ip_len);
2933 if (ntohs(udp->uh_sport) != V_tcp_udp_tunneling_port) {
2936 port = udp->uh_dport;
2941 o_len -= sizeof(struct udphdr);
2942 outer_ip->ip_len = htons(o_len);
2952 int mtu = ntohl(icmp6->icmp6_mtu);
2959 mtu = IPV6_MMTU - 8; /* XXXNP: what is the adjustment for? */
2983 icmp6 = ip6cp->ip6c_icmp6;
2984 m = ip6cp->ip6c_m;
2985 ip6 = ip6cp->ip6c_ip6;
2986 off = ip6cp->ip6c_off;
2987 dst = &ip6cp->ip6c_finaldst->sin6_addr;
3005 * - administratively prohibited
3006 * - port unreachable
3007 * - time exceeded in transit
3008 * - unknown next header
3011 ((icmp6->icmp6_type == ICMP6_DST_UNREACH &&
3012 (icmp6->icmp6_code == ICMP6_DST_UNREACH_ADMIN ||
3013 icmp6->icmp6_code == ICMP6_DST_UNREACH_NOPORT)) ||
3014 (icmp6->icmp6_type == ICMP6_TIME_EXCEEDED &&
3015 icmp6->icmp6_code == ICMP6_TIME_EXCEED_TRANSIT) ||
3016 (icmp6->icmp6_type == ICMP6_PARAM_PROB &&
3017 icmp6->icmp6_code == ICMP6_PARAMPROB_NEXTHEADER)))
3028 (m->m_pkthdr.len <
3034 inp = in6_pcblookup(&V_tcbinfo, &ip6->ip6_dst, t_ports.th_dport,
3035 &ip6->ip6_src, t_ports.th_sport, INPLOOKUP_WLOCKPCB, NULL);
3037 if (m->m_pkthdr.len < (int32_t) (off + sizeof(tcp_seq))) {
3044 if (tp->t_flags & TF_TOE && errno == EMSGSIZE) {
3051 if (tp->t_port != port)
3053 if (SEQ_GEQ(ntohl(icmp_tcp_seq), tp->snd_una) &&
3054 SEQ_LT(ntohl(icmp_tcp_seq), tp->snd_max)) {
3069 m->m_pkthdr.rcvif, NULL))
3075 if (mtu < tp->t_maxseg +
3092 inc.inc6_laddr = ip6->ip6_src;
3114 m = m_pulldown(ip6cp->ip6c_m, ip6cp->ip6c_off, sizeof(struct udphdr), NULL);
3119 if (ntohs(udp->uh_sport) != V_tcp_udp_tunneling_port) {
3122 port = udp->uh_dport;
3124 if ((m->m_flags & M_PKTHDR) == 0) {
3125 ip6cp->ip6c_m->m_pkthdr.len -= sizeof(struct udphdr);
3143 SipHash_Update(&ctx, &inc->inc_fport, sizeof(uint16_t));
3144 SipHash_Update(&ctx, &inc->inc_lport, sizeof(uint16_t));
3145 switch (inc->inc_flags & INC_ISIPV6) {
3148 SipHash_Update(&ctx, &inc->inc_faddr, sizeof(struct in_addr));
3149 SipHash_Update(&ctx, &inc->inc_laddr, sizeof(struct in_addr));
3154 SipHash_Update(&ctx, &inc->inc6_faddr, sizeof(struct in6_addr));
3155 SipHash_Update(&ctx, &inc->inc6_laddr, sizeof(struct in6_addr));
3185 * 1. In SYN-ACK packets.
3188 * All ISNs for SYN-ACK packets are generated by the syncache. See
3199 * Time is based off the system timer, and is corrected so that it
3227 #define ISN_RANDOM_INCREMENT (4096 - 1)
3264 ISN_BYTES_PER_SECOND / hz * (ticks - V_isn_last);
3277 * connection state is SYN-SENT, drop the connection. This behavior
3289 if (tp->t_state != TCPS_SYN_SENT)
3292 if (tp->t_flags & TF_FASTOPEN)
3312 return (tcp_mtudisc(inp, -1));
3326 tcp_mss_update(tp, -1, mtuoffer, NULL, NULL);
3328 so = inp->inp_socket;
3331 if (so->so_snd.sb_hiwat < tp->t_maxseg) {
3332 tp->t_maxseg = so->so_snd.sb_hiwat;
3333 if (tp->t_maxseg < V_tcp_mssdflt) {
3339 tp->t_flags2 |= TF2_PROC_SACK_PROHIBIT;
3341 tp->t_flags2 &= ~TF2_PROC_SACK_PROHIBIT;
3347 tp->t_rtttime = 0;
3348 tp->snd_nxt = tp->snd_una;
3350 tp->snd_recover = tp->snd_max;
3351 if (tp->t_flags & TF_SACK_PERMIT)
3352 EXIT_FASTRECOVERY(tp->t_flags);
3353 if (tp->t_fb->tfb_tcp_mtu_chg != NULL) {
3360 tp->t_fb->tfb_tcp_mtu_chg(tp);
3370 * Look-up the routing entry to the peer of this inpcb. If no route
3371 * is found and it cannot be allocated, then return 0. This routine
3384 if (inc->inc_faddr.s_addr != INADDR_ANY) {
3385 nh = fib4_lookup(inc->inc_fibnum, inc->inc_faddr, 0, NHR_NONE, 0);
3389 ifp = nh->nh_ifp;
3390 maxmtu = nh->nh_mtu;
3394 if (ifp->if_capenable & IFCAP_TSO4 &&
3395 ifp->if_hwassist & CSUM_TSO) {
3396 cap->ifcap |= CSUM_TSO;
3397 cap->tsomax = ifp->if_hw_tsomax;
3398 cap->tsomaxsegcount = ifp->if_hw_tsomaxsegcount;
3399 cap->tsomaxsegsize = ifp->if_hw_tsomaxsegsize;
3401 cap->ipsec_tso = (ifp->if_capenable2 &
3422 if (inc->inc_flags & INC_IPV6MINMTU)
3425 if (!IN6_IS_ADDR_UNSPECIFIED(&inc->inc6_faddr)) {
3426 in6_splitscope(&inc->inc6_faddr, &dst6, &scopeid);
3427 nh = fib6_lookup(inc->inc_fibnum, &dst6, scopeid, NHR_NONE, 0);
3431 ifp = nh->nh_ifp;
3432 maxmtu = nh->nh_mtu;
3436 if (ifp->if_capenable & IFCAP_TSO6 &&
3437 ifp->if_hwassist & CSUM_TSO) {
3438 cap->ifcap |= CSUM_TSO;
3439 cap->tsomax = ifp->if_hw_tsomax;
3440 cap->tsomaxsegcount = ifp->if_hw_tsomaxsegcount;
3441 cap->tsomaxsegsize = ifp->if_hw_tsomaxsegsize;
3442 cap->ipsec_tso = false; /* XXXKIB */
3473 inp->inp_inc.inc_flags |= INC_IPV6MINMTU;
3474 if ((tp->t_state >= TCPS_SYN_SENT) &&
3475 (inp->inp_inc.inc_flags & INC_ISIPV6)) {
3478 opt = inp->in6p_outputopts;
3479 if (opt != NULL && opt->ip6po_minmtu == IP6PO_MINMTU_ALL &&
3480 tp->t_maxseg > TCP6_MSS) {
3481 tp->t_maxseg = TCP6_MSS;
3482 if (tp->t_maxseg < V_tcp_mssdflt) {
3488 tp->t_flags2 |= TF2_PROC_SACK_PROHIBIT;
3490 tp->t_flags2 &= ~TF2_PROC_SACK_PROHIBIT;
3506 if (tp->t_flags & TF_NOOPT)
3507 return (tp->t_maxseg);
3516 if (TCPS_HAVEESTABLISHED(tp->t_state)) {
3517 if (tp->t_flags & TF_RCVD_TSTMP)
3522 if (tp->t_flags & TF_SIGNATURE)
3525 if ((tp->t_flags & TF_SACK_PERMIT) && tp->rcv_numsacks > 0) {
3527 optlen += tp->rcv_numsacks * TCPOLEN_SACK;
3531 if (tp->t_flags & TF_REQ_TSTMP)
3535 if (tp->t_flags & TF_REQ_SCALE)
3538 if (tp->t_flags & TF_SIGNATURE)
3541 if (tp->t_flags & TF_SACK_PERMIT)
3545 return (tp->t_maxseg - optlen);
3554 if (tp->t_flags & TF_NOOPT)
3555 return (tp->t_maxseg);
3565 if (TCPS_HAVEESTABLISHED(tp->t_state)) {
3566 if (tp->t_flags & TF_RCVD_TSTMP)
3571 if (tp->t_flags & TF_SIGNATURE)
3575 if (tp->t_flags & TF_REQ_TSTMP)
3579 if (tp->t_flags & TF_REQ_SCALE)
3582 if (tp->t_flags & TF_SIGNATURE)
3585 if (tp->t_flags & TF_SACK_PERMIT)
3589 return (tp->t_maxseg - optlen);
3616 if (req->oldptr != NULL || req->oldlen != 0)
3618 if (req->newptr == NULL)
3620 if (req->newlen < sizeof(addrs))
3631 if (fin6->sin6_len != sizeof(struct sockaddr_in6) ||
3632 lin6->sin6_len != sizeof(struct sockaddr_in6))
3634 if (IN6_IS_ADDR_V4MAPPED(&fin6->sin6_addr)) {
3635 if (!IN6_IS_ADDR_V4MAPPED(&lin6->sin6_addr))
3657 if (fin->sin_len != sizeof(struct sockaddr_in) ||
3658 lin->sin_len != sizeof(struct sockaddr_in))
3669 inp = in6_pcblookup(&V_tcbinfo, &fin6->sin6_addr,
3670 fin6->sin6_port, &lin6->sin6_addr, lin6->sin6_port,
3676 inp = in_pcblookup(&V_tcbinfo, fin->sin_addr, fin->sin_port,
3677 lin->sin_addr, lin->sin_port, INPLOOKUP_WLOCKPCB, NULL);
3682 if (!SOLISTENING(inp->inp_socket)) {
3734 if (req->oldptr != NULL || req->oldlen != 0)
3736 if (req->newptr == NULL)
3738 if (req->newlen < sizeof(addrs))
3749 if (fin6->sin6_len != sizeof(struct sockaddr_in6) ||
3750 lin6->sin6_len != sizeof(struct sockaddr_in6))
3752 if (IN6_IS_ADDR_V4MAPPED(&fin6->sin6_addr)) {
3753 if (!IN6_IS_ADDR_V4MAPPED(&lin6->sin6_addr))
3775 if (fin->sin_len != sizeof(struct sockaddr_in) ||
3776 lin->sin_len != sizeof(struct sockaddr_in))
3787 inp = in6_pcblookup(&V_tcbinfo, &fin6->sin6_addr,
3788 fin6->sin6_port, &lin6->sin6_addr, lin6->sin6_port,
3794 inp = in_pcblookup(&V_tcbinfo, fin->sin_addr, fin->sin_port,
3795 lin->sin_addr, lin->sin_port, INPLOOKUP_WLOCKPCB, NULL);
3803 so = inp->inp_socket;
3891 if (inc && ((inc->inc_flags & INC_ISIPV6) == 0)) {
3892 inet_ntoa_r(inc->inc_faddr, sp);
3894 sprintf(sp, "]:%i to [", ntohs(inc->inc_fport));
3896 inet_ntoa_r(inc->inc_laddr, sp);
3898 sprintf(sp, "]:%i", ntohs(inc->inc_lport));
3901 ip6_sprintf(sp, &inc->inc6_faddr);
3903 sprintf(sp, "]:%i to [", ntohs(inc->inc_fport));
3905 ip6_sprintf(sp, &inc->inc6_laddr);
3907 sprintf(sp, "]:%i", ntohs(inc->inc_lport));
3909 ip6_sprintf(sp, &ip6->ip6_src);
3911 sprintf(sp, "]:%i to [", ntohs(th->th_sport));
3913 ip6_sprintf(sp, &ip6->ip6_dst);
3915 sprintf(sp, "]:%i", ntohs(th->th_dport));
3919 inet_ntoa_r(ip->ip_src, sp);
3921 sprintf(sp, "]:%i to [", ntohs(th->th_sport));
3923 inet_ntoa_r(ip->ip_dst, sp);
3925 sprintf(sp, "]:%i", ntohs(th->th_dport));
3934 if (*(s + size - 1) != '\0')
3948 int pstate = tp->t_state;
3951 TCPSTATES_DEC(tp->t_state);
3953 tp->t_state = newstate;
3958 * Create an external-format (``xtcpcb'') structure using the information in
3959 * the kernel-format tcpcb structure pointed to by tp. This is done to
3962 * information-hiding if we decide that some of this information should be
3972 xt->t_state = tp->t_state;
3973 xt->t_logstate = tcp_get_bblog_state(tp);
3974 xt->t_flags = tp->t_flags;
3975 xt->t_sndzerowin = tp->t_sndzerowin;
3976 xt->t_sndrexmitpack = tp->t_sndrexmitpack;
3977 xt->t_rcvoopack = tp->t_rcvoopack;
3978 xt->t_rcv_wnd = tp->rcv_wnd;
3979 xt->t_snd_wnd = tp->snd_wnd;
3980 xt->t_snd_cwnd = tp->snd_cwnd;
3981 xt->t_snd_ssthresh = tp->snd_ssthresh;
3982 xt->t_dsack_bytes = tp->t_dsack_bytes;
3983 xt->t_dsack_tlp_bytes = tp->t_dsack_tlp_bytes;
3984 xt->t_dsack_pack = tp->t_dsack_pack;
3985 xt->t_maxseg = tp->t_maxseg;
3986 xt->xt_ecn = (tp->t_flags2 & TF2_ECN_PERMIT) ? 1 : 0 +
3987 (tp->t_flags2 & TF2_ACE_PERMIT) ? 2 : 0;
3991 if (tp->t_timers[which] != SBT_MAX) \
3992 xt->where = (tp->t_timers[which] - now) / SBT_1MS; \
3994 xt->where = 0; \
4002 xt->t_rcvtime = 1000 * (ticks - tp->t_rcvtime) / hz;
4004 xt->xt_encaps_port = tp->t_port;
4005 bcopy(tp->t_fb->tfb_tcp_block_name, xt->xt_stack,
4007 bcopy(CC_ALGO(tp)->name, xt->xt_cc, TCP_CA_NAME_MAX);
4009 (void)tcp_log_get_id(tp, xt->xt_logid);
4012 xt->xt_len = sizeof(struct xtcpcb);
4013 in_pcbtoxinpcb(inp, &xt->xt_inp);
4031 bit = 1U << (status - 1);
4032 if (bit & tp->t_end_info_status) {
4037 if (tp->t_end_info_bytes[i] == TCP_EI_EMPTY_SLOT) {
4038 tp->t_end_info_bytes[i] = status;
4039 tp->t_end_info_status |= bit;
4049 if ((tcp_pacing_limit == -1) ||
4063 if ((tcp_dgp_limit == -1) ||
4081 ret = atomic_fetchadd_int(&number_of_dgp_connections, -1);
4083 KASSERT(ret != 0, ("number_of_dgp_connections -1 would cause wrap?"));
4085 if (tcp_dgp_limit != -1) {
4104 ret = atomic_fetchadd_int(&number_of_tcp_connections_pacing, -1);
4106 KASSERT(ret != 0, ("tcp_paced_connection_exits -1 would cause wrap?"));
4108 if (tcp_pacing_limit != -1) {
4126 * b) The timer granularity.
4139 if (SEQ_LT(th->th_ack, tp->snd_una)) {
4141 if (to->to_flags & TOF_SACK) {
4142 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4143 tp->tcp_cnt_counters[ACK_SACK]++;
4147 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4148 tp->tcp_cnt_counters[ACK_BEHIND]++;
4152 } else if (th->th_ack == tp->snd_una) {
4154 if (to->to_flags & TOF_SACK) {
4155 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4156 tp->tcp_cnt_counters[ACK_SACK]++;
4159 } else if (tiwin != tp->snd_wnd) {
4160 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4161 tp->tcp_cnt_counters[ACK_RWND]++;
4165 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4166 tp->tcp_cnt_counters[ACK_DUPACK]++;
4171 if (!SEQ_GT(th->th_ack, tp->snd_max)) {
4172 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4173 tp->tcp_cnt_counters[CNT_OF_ACKS_IN] += (((th->th_ack - tp->snd_una) + mss - 1)/mss);
4176 if (to->to_flags & TOF_SACK) {
4177 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4178 tp->tcp_cnt_counters[ACK_CUMACK_SACK]++;
4182 if (tp->t_flags2 & TF2_TCP_ACCOUNTING) {
4183 tp->tcp_cnt_counters[ACK_CUMACK]++;
4194 if (tp->t_tmr_granularity == granularity) {
4199 KASSERT((tp->t_tmr_granularity == TCP_TMR_GRANULARITY_TICKS),
4201 tp->t_tmr_granularity, tp));
4202 tp->t_rttlow = TICKS_2_USEC(tp->t_rttlow);
4203 if (tp->t_srtt > 1) {
4206 val = tp->t_srtt >> TCP_RTT_SHIFT;
4207 frac = tp->t_srtt & 0x1f;
4208 tp->t_srtt = TICKS_2_USEC(val);
4220 tp->t_srtt += frac;
4223 if (tp->t_rttvar) {
4226 val = tp->t_rttvar >> TCP_RTTVAR_SHIFT;
4227 frac = tp->t_rttvar & 0x1f;
4228 tp->t_rttvar = TICKS_2_USEC(val);
4240 tp->t_rttvar += frac;
4243 tp->t_tmr_granularity = TCP_TMR_GRANULARITY_USEC;
4246 KASSERT((tp->t_tmr_granularity == TCP_TMR_GRANULARITY_USEC),
4248 tp->t_tmr_granularity, tp));
4249 if (tp->t_srtt > 1) {
4252 val = USEC_2_TICKS(tp->t_srtt);
4253 frac = tp->t_srtt % (HPTS_USEC_IN_SEC / hz);
4254 tp->t_srtt = val << TCP_RTT_SHIFT;
4267 tp->t_srtt += frac;
4270 if (tp->t_rttvar) {
4273 val = USEC_2_TICKS(tp->t_rttvar);
4274 frac = tp->t_rttvar % (HPTS_USEC_IN_SEC / hz);
4275 tp->t_rttvar = val << TCP_RTTVAR_SHIFT;
4288 tp->t_rttvar += frac;
4291 tp->t_rttlow = USEC_2_TICKS(tp->t_rttlow);
4292 tp->t_tmr_granularity = TCP_TMR_GRANULARITY_TICKS;
4315 if (tp->t_flags2 & TF2_MBUF_L_ACKS)
4317 if ((tp->t_flags2 & TF2_SUPPORTS_MBUFQ) == 0 &&
4318 !STAILQ_EMPTY(&tp->t_inqueue)) {
4329 m = STAILQ_FIRST(&tp->t_inqueue);
4330 STAILQ_INIT(&tp->t_inqueue);
4331 STAILQ_FOREACH_FROM_SAFE(m, &tp->t_inqueue, m_stailqpkt, save)
4339 STAILQ_FOREACH_SAFE(m, &tp->t_inqueue, m_stailqpkt, save) {
4340 if (m->m_flags & M_ACKCMP) {
4341 if (m == STAILQ_FIRST(&tp->t_inqueue))
4342 STAILQ_REMOVE_HEAD(&tp->t_inqueue,
4345 STAILQ_REMOVE_AFTER(&tp->t_inqueue,
4362 tls = so->so_snd.sb_tls_info;
4366 rec_oh = tls->params.tls_hlen + tls->params.tls_tlen;
4367 records = ((tls_usr_bytes + tls->params.max_frame_len - 1)/tls->params.max_frame_len);
4390 log.u_bbr.rttProp = req->timestamp;
4391 log.u_bbr.delRate = req->start;
4392 log.u_bbr.cur_del_rate = req->end;
4393 log.u_bbr.flex1 = req->start_seq;
4394 log.u_bbr.flex2 = req->end_seq;
4395 log.u_bbr.flex3 = req->flags;
4396 log.u_bbr.flex4 = ((req->localtime >> 32) & 0x00000000ffffffff);
4397 log.u_bbr.flex5 = (req->localtime & 0x00000000ffffffff);
4404 log.u_bbr.lt_epoch = ((req->cspr >> 32) & 0x00000000ffffffff);
4405 log.u_bbr.pkts_out |= (req->cspr & 0x00000000ffffffff);
4406 log.u_bbr.applimited = tp->t_tcpreq_closed;
4408 log.u_bbr.applimited |= tp->t_tcpreq_open;
4410 log.u_bbr.applimited |= tp->t_tcpreq_req;
4413 &tptosocket(tp)->so_rcv,
4414 &tptosocket(tp)->so_snd,
4423 if (tp->t_tcpreq_req > 0)
4424 tp->t_tcpreq_req--;
4425 if (ent->flags & TCP_TRK_TRACK_FLG_OPEN) {
4426 if (tp->t_tcpreq_open > 0)
4427 tp->t_tcpreq_open--;
4429 if (tp->t_tcpreq_closed > 0)
4430 tp->t_tcpreq_closed--;
4432 ent->flags = TCP_TRK_TRACK_FLG_EMPTY;
4443 ent = &tp->t_tcpreq_info[i];
4444 if (ent->flags != TCP_TRK_TRACK_FLG_USED) {
4453 if (ts >= ent->localtime)
4454 time_delta = ts - ent->localtime;
4465 * No sendfile in a our time-limit
4469 tcp_req_log_req_info(tp, &tp->t_tcpreq_info[i], i, TCP_TRK_REQ_LOG_STALE,
4475 ent = &tp->t_tcpreq_info[oldest];
4476 tcp_req_log_req_info(tp, &tp->t_tcpreq_info[i], i, TCP_TRK_REQ_LOG_STALE,
4489 if (tp->t_tcpreq_req == 0)
4491 if (tp->t_tcpreq_closed == 0)
4494 ent = &tp->t_tcpreq_info[i];
4496 if (ent->flags == TCP_TRK_TRACK_FLG_EMPTY)
4499 if (ent->flags & TCP_TRK_TRACK_FLG_OPEN)
4501 if (SEQ_GEQ(ack_point, ent->end_seq)) {
4502 /* We are past it -- free it */
4515 if (tp->t_tcpreq_req == 0)
4516 return (-1);
4517 if (tp->t_tcpreq_closed == 0)
4518 return (-1);
4519 if (ent->flags == TCP_TRK_TRACK_FLG_EMPTY)
4520 return (-1);
4521 if (SEQ_GEQ(ack_point, ent->end_seq)) {
4538 if (tp->t_tcpreq_req == 0) {
4543 ent = &tp->t_tcpreq_info[i];
4544 if (ent->flags == TCP_TRK_TRACK_FLG_EMPTY)
4546 if ((ent->flags & TCP_TRK_TRACK_FLG_OPEN) == 0) {
4547 if (SEQ_GEQ(th_ack, ent->end_seq)) {
4562 if (tp->t_tcpreq_req == 0) {
4567 ent = &tp->t_tcpreq_info[i];
4570 if (ent->flags == TCP_TRK_TRACK_FLG_EMPTY) {
4573 if (ent->flags & TCP_TRK_TRACK_FLG_OPEN) {
4581 if ((SEQ_GEQ(seq, ent->start_seq)) ||
4582 (tp->t_tcpreq_closed == 0))
4590 if ((SEQ_GEQ(seq, ent->start_seq)) &&
4591 (SEQ_LT(seq, ent->end_seq))) {
4607 tcp_req_check_for_comp(tp, tp->snd_una);
4609 if (tp->t_tcpreq_req)
4611 (tp->t_tcpreq_req >= MAX_TCP_TRK_REQ));
4613 if (tp->t_tcpreq_req) {
4615 fil = &tp->t_tcpreq_info[i];
4616 if ((fil->flags & TCP_TRK_TRACK_FLG_USED) == 0)
4618 if ((fil->timestamp == req->timestamp) &&
4619 (fil->start == req->start) &&
4620 ((fil->flags & TCP_TRK_TRACK_FLG_OPEN) ||
4621 (fil->end == req->end))) {
4634 if (tp->t_tcpreq_req >= MAX_TCP_TRK_REQ) {
4637 tcp_req_log_req_info(tp, &tp->t_tcpreq_info[i],
4643 fil = &tp->t_tcpreq_info[i];
4644 if (fil->flags == TCP_TRK_TRACK_FLG_EMPTY) {
4646 fil->flags = TCP_TRK_TRACK_FLG_USED;
4647 fil->timestamp = req->timestamp;
4648 fil->playout_ms = req->playout_ms;
4649 fil->localtime = ts;
4650 fil->start = req->start;
4651 if (req->flags & TCP_LOG_HTTPD_RANGE_END) {
4652 fil->end = req->end;
4654 fil->end = 0;
4655 fil->flags |= TCP_TRK_TRACK_FLG_OPEN;
4662 fil->sbcc_at_s = tptosocket(tp)->so_snd.sb_ccc;
4663 fil->start_seq = tp->snd_una +
4664 tptosocket(tp)->so_snd.sb_ccc;
4665 if (req->flags & TCP_LOG_HTTPD_RANGE_END)
4666 fil->end_seq = (fil->start_seq + ((uint32_t)(fil->end - fil->start)));
4668 fil->end_seq = 0;
4669 if (tptosocket(tp)->so_snd.sb_tls_info) {
4674 fil->end_seq += tcp_estimate_tls_overhead(
4675 tptosocket(tp), (fil->end - fil->start));
4677 tp->t_tcpreq_req++;
4678 if (fil->flags & TCP_TRK_TRACK_FLG_OPEN)
4679 tp->t_tcpreq_open++;
4681 tp->t_tcpreq_closed++;
4694 (void)tcp_req_alloc_req_full(tp, &user->tcp_req, ts, 1);
4705 &tptosocket(tp)->so_rcv,
4706 &tptosocket(tp)->so_snd,
4711 l->tlb_flex1 = option_num;
4712 l->tlb_flex2 = option_val;
4727 srtt = tp->t_srtt;
4734 if (tp->t_tmr_granularity != granularity) {
4747 if (tp->t_tmr_granularity == TCP_TMR_GRANULARITY_TICKS)
4759 tp->t_sndtlppack++;
4760 tp->t_sndtlpbyte += len;
4764 tp->t_snd_rxt_bytes += len;
4766 tp->t_sndbytes += len;
4772 rexmit_percent = (1000ULL * tp->t_snd_rxt_bytes) /
4773 (10ULL * (tp->t_snd_rxt_bytes + tp->t_sndbytes));