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patch #6537/#7858: TCP window scaling support (OOS queueing still needs special handling)
This commit is contained in:
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@ -6,6 +6,9 @@ HISTORY
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++ New features:
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++ New features:
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2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab")
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* patch #6537/#7858: TCP window scaling support
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2014-01-17: Jiri Engelthaler
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2014-01-17: Jiri Engelthaler
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* icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
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* icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
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IPv6 ICMP's
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IPv6 ICMP's
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@ -115,9 +115,24 @@
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#error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!"
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#error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!"
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#endif
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#endif
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#endif /* !MEMP_MEM_MALLOC */
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#endif /* !MEMP_MEM_MALLOC */
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#if (LWIP_TCP && (TCP_WND > 0xffff))
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#if LWIP_WND_SCALE
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#error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h"
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#if (LWIP_TCP && (TCP_WND > 0xffffffff))
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#error "If you want to use TCP, TCP_WND must fit in an u32_t, so, you have to reduce it in your lwipopts.h"
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#endif
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#endif
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#if (LWIP_TCP && LWIP_WND_SCALE > 14)
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#error "The maximum valid window scale value is 14!"
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#endif
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#if (LWIP_TCP && (TCP_WND > (0xFFFFU << TCP_RCV_SCALE)))
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#error "TCP_WND is bigger than the configured LWIP_WND_SCALE allows!"
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#endif
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#if (LWIP_TCP && ((TCP_WND >> TCP_RCV_SCALE) == 0))
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#error "TCP_WND is too small for the configured LWIP_WND_SCALE (results in zero window)!"
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#endif
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#else /* LWIP_WND_SCALE */
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#if (LWIP_TCP && (TCP_WND > 0xffff))
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#error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h (or enable window scaling)"
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#endif
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#endif /* LWIP_WND_SCALE */
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#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))
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#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff))
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#error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h"
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#error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h"
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#endif
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#endif
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@ -625,8 +625,10 @@ u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb)
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} else {
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} else {
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/* keep the right edge of window constant */
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/* keep the right edge of window constant */
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u32_t new_rcv_ann_wnd = pcb->rcv_ann_right_edge - pcb->rcv_nxt;
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u32_t new_rcv_ann_wnd = pcb->rcv_ann_right_edge - pcb->rcv_nxt;
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#if !LWIP_WND_SCALE
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LWIP_ASSERT("new_rcv_ann_wnd <= 0xffff", new_rcv_ann_wnd <= 0xffff);
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LWIP_ASSERT("new_rcv_ann_wnd <= 0xffff", new_rcv_ann_wnd <= 0xffff);
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pcb->rcv_ann_wnd = (u16_t)new_rcv_ann_wnd;
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#endif
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pcb->rcv_ann_wnd = (tcpwnd_size_t)new_rcv_ann_wnd;
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}
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}
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return 0;
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return 0;
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}
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}
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@ -649,7 +651,7 @@ tcp_recved(struct tcp_pcb *pcb, u16_t len)
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LWIP_ASSERT("don't call tcp_recved for listen-pcbs",
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LWIP_ASSERT("don't call tcp_recved for listen-pcbs",
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pcb->state != LISTEN);
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pcb->state != LISTEN);
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LWIP_ASSERT("tcp_recved: len would wrap rcv_wnd\n",
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LWIP_ASSERT("tcp_recved: len would wrap rcv_wnd\n",
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len <= 0xffff - pcb->rcv_wnd );
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len <= TCPWND_MAX - pcb->rcv_wnd);
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pcb->rcv_wnd += len;
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pcb->rcv_wnd += len;
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if (pcb->rcv_wnd > TCP_WND) {
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if (pcb->rcv_wnd > TCP_WND) {
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@ -824,7 +826,7 @@ void
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tcp_slowtmr(void)
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tcp_slowtmr(void)
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{
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{
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struct tcp_pcb *pcb, *prev;
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struct tcp_pcb *pcb, *prev;
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u16_t eff_wnd;
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tcpwnd_size_t eff_wnd;
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u8_t pcb_remove; /* flag if a PCB should be removed */
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u8_t pcb_remove; /* flag if a PCB should be removed */
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u8_t pcb_reset; /* flag if a RST should be sent when removing */
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u8_t pcb_reset; /* flag if a RST should be sent when removing */
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err_t err;
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err_t err;
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@ -899,14 +901,14 @@ tcp_slowtmr_start:
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/* Reduce congestion window and ssthresh. */
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/* Reduce congestion window and ssthresh. */
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eff_wnd = LWIP_MIN(pcb->cwnd, pcb->snd_wnd);
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eff_wnd = LWIP_MIN(pcb->cwnd, pcb->snd_wnd);
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pcb->ssthresh = eff_wnd >> 1;
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pcb->ssthresh = eff_wnd >> 1;
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if (pcb->ssthresh < (pcb->mss << 1)) {
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if (pcb->ssthresh < (tcpwnd_size_t)(pcb->mss << 1)) {
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pcb->ssthresh = (pcb->mss << 1);
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pcb->ssthresh = (pcb->mss << 1);
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}
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}
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pcb->cwnd = pcb->mss;
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pcb->cwnd = pcb->mss;
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: cwnd %"U16_F
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: cwnd %"TCPWNDSIZE_F
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" ssthresh %"U16_F"\n",
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" ssthresh %"TCPWNDSIZE_F"\n",
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pcb->cwnd, pcb->ssthresh));
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pcb->cwnd, pcb->ssthresh));
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/* The following needs to be called AFTER cwnd is set to one
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/* The following needs to be called AFTER cwnd is set to one
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mss - STJ */
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mss - STJ */
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tcp_rexmit_rto(pcb);
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tcp_rexmit_rto(pcb);
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@ -1348,6 +1350,11 @@ tcp_alloc(u8_t prio)
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pcb->snd_queuelen = 0;
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pcb->snd_queuelen = 0;
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pcb->rcv_wnd = TCP_WND;
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pcb->rcv_wnd = TCP_WND;
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pcb->rcv_ann_wnd = TCP_WND;
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pcb->rcv_ann_wnd = TCP_WND;
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#if LWIP_WND_SCALE
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/* snd_scale and rcv_scale are zero unless both sides agree to use scaling */
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pcb->snd_scale = 0;
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pcb->rcv_scale = 0;
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#endif
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pcb->tos = 0;
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pcb->tos = 0;
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pcb->ttl = TCP_TTL;
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pcb->ttl = TCP_TTL;
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/* As initial send MSS, we use TCP_MSS but limit it to 536.
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/* As initial send MSS, we use TCP_MSS but limit it to 536.
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@ -500,9 +500,6 @@ tcp_listen_input(struct tcp_pcb_listen *pcb)
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npcb->state = SYN_RCVD;
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npcb->state = SYN_RCVD;
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npcb->rcv_nxt = seqno + 1;
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npcb->rcv_nxt = seqno + 1;
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npcb->rcv_ann_right_edge = npcb->rcv_nxt;
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npcb->rcv_ann_right_edge = npcb->rcv_nxt;
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npcb->snd_wnd = tcphdr->wnd;
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npcb->snd_wnd_max = tcphdr->wnd;
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npcb->ssthresh = npcb->snd_wnd;
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npcb->snd_wl1 = seqno - 1;/* initialise to seqno-1 to force window update */
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npcb->snd_wl1 = seqno - 1;/* initialise to seqno-1 to force window update */
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npcb->callback_arg = pcb->callback_arg;
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npcb->callback_arg = pcb->callback_arg;
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#if LWIP_CALLBACK_API
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#if LWIP_CALLBACK_API
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@ -516,6 +513,10 @@ tcp_listen_input(struct tcp_pcb_listen *pcb)
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/* Parse any options in the SYN. */
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/* Parse any options in the SYN. */
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tcp_parseopt(npcb);
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tcp_parseopt(npcb);
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npcb->snd_wnd = SND_WND_SCALE(npcb, tcphdr->wnd);
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npcb->snd_wnd_max = npcb->snd_wnd;
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npcb->ssthresh = npcb->snd_wnd;
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#if TCP_CALCULATE_EFF_SEND_MSS
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#if TCP_CALCULATE_EFF_SEND_MSS
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npcb->mss = tcp_eff_send_mss(npcb->mss, &npcb->local_ip,
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npcb->mss = tcp_eff_send_mss(npcb->mss, &npcb->local_ip,
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&npcb->remote_ip, PCB_ISIPV6(npcb));
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&npcb->remote_ip, PCB_ISIPV6(npcb));
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@ -653,8 +654,8 @@ tcp_process(struct tcp_pcb *pcb)
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pcb->rcv_nxt = seqno + 1;
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pcb->rcv_nxt = seqno + 1;
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pcb->rcv_ann_right_edge = pcb->rcv_nxt;
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pcb->rcv_ann_right_edge = pcb->rcv_nxt;
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pcb->lastack = ackno;
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pcb->lastack = ackno;
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pcb->snd_wnd = tcphdr->wnd;
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pcb->snd_wnd = SND_WND_SCALE(pcb, tcphdr->wnd);
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pcb->snd_wnd_max = tcphdr->wnd;
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pcb->snd_wnd_max = pcb->snd_wnd;
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pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */
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pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */
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pcb->state = ESTABLISHED;
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pcb->state = ESTABLISHED;
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@ -670,7 +671,7 @@ tcp_process(struct tcp_pcb *pcb)
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pcb->cwnd = ((pcb->cwnd == 1) ? (pcb->mss * 2) : pcb->mss);
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pcb->cwnd = ((pcb->cwnd == 1) ? (pcb->mss * 2) : pcb->mss);
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LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0));
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LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0));
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--pcb->snd_queuelen;
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--pcb->snd_queuelen;
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_process: SYN-SENT --queuelen %"U16_F"\n", (u16_t)pcb->snd_queuelen));
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_process: SYN-SENT --queuelen %"TCPWNDSIZE_F"\n", (tcpwnd_size_t)pcb->snd_queuelen));
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rseg = pcb->unacked;
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rseg = pcb->unacked;
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pcb->unacked = rseg->next;
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pcb->unacked = rseg->next;
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tcp_seg_free(rseg);
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tcp_seg_free(rseg);
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@ -703,7 +704,7 @@ tcp_process(struct tcp_pcb *pcb)
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if (flags & TCP_ACK) {
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if (flags & TCP_ACK) {
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/* expected ACK number? */
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/* expected ACK number? */
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if (TCP_SEQ_BETWEEN(ackno, pcb->lastack+1, pcb->snd_nxt)) {
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if (TCP_SEQ_BETWEEN(ackno, pcb->lastack+1, pcb->snd_nxt)) {
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u16_t old_cwnd;
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tcpwnd_size_t old_cwnd;
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pcb->state = ESTABLISHED;
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pcb->state = ESTABLISHED;
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LWIP_DEBUGF(TCP_DEBUG, ("TCP connection established %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest));
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LWIP_DEBUGF(TCP_DEBUG, ("TCP connection established %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest));
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#if LWIP_CALLBACK_API
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#if LWIP_CALLBACK_API
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@ -889,11 +890,11 @@ tcp_receive(struct tcp_pcb *pcb)
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if (TCP_SEQ_LT(pcb->snd_wl1, seqno) ||
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if (TCP_SEQ_LT(pcb->snd_wl1, seqno) ||
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(pcb->snd_wl1 == seqno && TCP_SEQ_LT(pcb->snd_wl2, ackno)) ||
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(pcb->snd_wl1 == seqno && TCP_SEQ_LT(pcb->snd_wl2, ackno)) ||
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(pcb->snd_wl2 == ackno && tcphdr->wnd > pcb->snd_wnd)) {
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(pcb->snd_wl2 == ackno && tcphdr->wnd > pcb->snd_wnd)) {
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pcb->snd_wnd = tcphdr->wnd;
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pcb->snd_wnd = SND_WND_SCALE(pcb, tcphdr->wnd);
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/* keep track of the biggest window announced by the remote host to calculate
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/* keep track of the biggest window announced by the remote host to calculate
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the maximum segment size */
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the maximum segment size */
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if (pcb->snd_wnd_max < tcphdr->wnd) {
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if (pcb->snd_wnd_max < pcb->snd_wnd) {
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pcb->snd_wnd_max = tcphdr->wnd;
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pcb->snd_wnd_max = pcb->snd_wnd;
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}
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}
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pcb->snd_wl1 = seqno;
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pcb->snd_wl1 = seqno;
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pcb->snd_wl2 = ackno;
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pcb->snd_wl2 = ackno;
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@ -957,7 +958,7 @@ tcp_receive(struct tcp_pcb *pcb)
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if (pcb->dupacks > 3) {
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if (pcb->dupacks > 3) {
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/* Inflate the congestion window, but not if it means that
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/* Inflate the congestion window, but not if it means that
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the value overflows. */
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the value overflows. */
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if ((u16_t)(pcb->cwnd + pcb->mss) > pcb->cwnd) {
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if ((tcpwnd_size_t)(pcb->cwnd + pcb->mss) > pcb->cwnd) {
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pcb->cwnd += pcb->mss;
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pcb->cwnd += pcb->mss;
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}
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}
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} else if (pcb->dupacks == 3) {
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} else if (pcb->dupacks == 3) {
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@ -1003,16 +1004,16 @@ tcp_receive(struct tcp_pcb *pcb)
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ssthresh). */
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ssthresh). */
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if (pcb->state >= ESTABLISHED) {
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if (pcb->state >= ESTABLISHED) {
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if (pcb->cwnd < pcb->ssthresh) {
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if (pcb->cwnd < pcb->ssthresh) {
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if ((u16_t)(pcb->cwnd + pcb->mss) > pcb->cwnd) {
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if ((tcpwnd_size_t)(pcb->cwnd + pcb->mss) > pcb->cwnd) {
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pcb->cwnd += pcb->mss;
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pcb->cwnd += pcb->mss;
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}
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}
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: slow start cwnd %"U16_F"\n", pcb->cwnd));
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: slow start cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd));
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} else {
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} else {
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u16_t new_cwnd = (pcb->cwnd + pcb->mss * pcb->mss / pcb->cwnd);
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tcpwnd_size_t new_cwnd = (pcb->cwnd + pcb->mss * pcb->mss / pcb->cwnd);
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if (new_cwnd > pcb->cwnd) {
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if (new_cwnd > pcb->cwnd) {
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pcb->cwnd = new_cwnd;
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pcb->cwnd = new_cwnd;
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}
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}
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: congestion avoidance cwnd %"U16_F"\n", pcb->cwnd));
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LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: congestion avoidance cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd));
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}
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}
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}
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}
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LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: ACK for %"U32_F", unacked->seqno %"U32_F":%"U32_F"\n",
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LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: ACK for %"U32_F", unacked->seqno %"U32_F":%"U32_F"\n",
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@ -1035,7 +1036,7 @@ tcp_receive(struct tcp_pcb *pcb)
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next = pcb->unacked;
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next = pcb->unacked;
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pcb->unacked = pcb->unacked->next;
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pcb->unacked = pcb->unacked->next;
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"U16_F" ... ", (u16_t)pcb->snd_queuelen));
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"TCPWNDSIZE_F" ... ", (tcpwnd_size_t)pcb->snd_queuelen));
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LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= pbuf_clen(next->p)));
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LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= pbuf_clen(next->p)));
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/* Prevent ACK for FIN to generate a sent event */
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/* Prevent ACK for FIN to generate a sent event */
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if ((pcb->acked != 0) && ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0)) {
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if ((pcb->acked != 0) && ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0)) {
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@ -1045,7 +1046,7 @@ tcp_receive(struct tcp_pcb *pcb)
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pcb->snd_queuelen -= pbuf_clen(next->p);
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pcb->snd_queuelen -= pbuf_clen(next->p);
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tcp_seg_free(next);
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tcp_seg_free(next);
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"U16_F" (after freeing unacked)\n", (u16_t)pcb->snd_queuelen));
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LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"TCPWNDSIZE_F" (after freeing unacked)\n", (tcpwnd_size_t)pcb->snd_queuelen));
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if (pcb->snd_queuelen != 0) {
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if (pcb->snd_queuelen != 0) {
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LWIP_ASSERT("tcp_receive: valid queue length", pcb->unacked != NULL ||
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LWIP_ASSERT("tcp_receive: valid queue length", pcb->unacked != NULL ||
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pcb->unsent != NULL);
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pcb->unsent != NULL);
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@ -1054,10 +1055,11 @@ tcp_receive(struct tcp_pcb *pcb)
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/* If there's nothing left to acknowledge, stop the retransmit
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/* If there's nothing left to acknowledge, stop the retransmit
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timer, otherwise reset it to start again */
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timer, otherwise reset it to start again */
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if(pcb->unacked == NULL)
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if (pcb->unacked == NULL) {
|
||||||
pcb->rtime = -1;
|
pcb->rtime = -1;
|
||||||
else
|
} else {
|
||||||
pcb->rtime = 0;
|
pcb->rtime = 0;
|
||||||
|
}
|
||||||
|
|
||||||
pcb->polltmr = 0;
|
pcb->polltmr = 0;
|
||||||
|
|
||||||
@ -1092,7 +1094,7 @@ tcp_receive(struct tcp_pcb *pcb)
|
|||||||
pcb->unsent_oversize = 0;
|
pcb->unsent_oversize = 0;
|
||||||
}
|
}
|
||||||
#endif /* TCP_OVERSIZE */
|
#endif /* TCP_OVERSIZE */
|
||||||
LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"U16_F" ... ", (u16_t)pcb->snd_queuelen));
|
LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"TCPWNDSIZE_F" ... ", (tcpwnd_size_t)pcb->snd_queuelen));
|
||||||
LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= pbuf_clen(next->p)));
|
LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= pbuf_clen(next->p)));
|
||||||
/* Prevent ACK for FIN to generate a sent event */
|
/* Prevent ACK for FIN to generate a sent event */
|
||||||
if ((pcb->acked != 0) && ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0)) {
|
if ((pcb->acked != 0) && ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0)) {
|
||||||
@ -1100,7 +1102,7 @@ tcp_receive(struct tcp_pcb *pcb)
|
|||||||
}
|
}
|
||||||
pcb->snd_queuelen -= pbuf_clen(next->p);
|
pcb->snd_queuelen -= pbuf_clen(next->p);
|
||||||
tcp_seg_free(next);
|
tcp_seg_free(next);
|
||||||
LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"U16_F" (after freeing unsent)\n", (u16_t)pcb->snd_queuelen));
|
LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"TCPWNDSIZE_F" (after freeing unsent)\n", (tcpwnd_size_t)pcb->snd_queuelen));
|
||||||
if (pcb->snd_queuelen != 0) {
|
if (pcb->snd_queuelen != 0) {
|
||||||
LWIP_ASSERT("tcp_receive: valid queue length",
|
LWIP_ASSERT("tcp_receive: valid queue length",
|
||||||
pcb->unacked != NULL || pcb->unsent != NULL);
|
pcb->unacked != NULL || pcb->unsent != NULL);
|
||||||
@ -1584,7 +1586,7 @@ tcp_parseopt(struct tcp_pcb *pcb)
|
|||||||
opts = (u8_t *)tcphdr + TCP_HLEN;
|
opts = (u8_t *)tcphdr + TCP_HLEN;
|
||||||
|
|
||||||
/* Parse the TCP MSS option, if present. */
|
/* Parse the TCP MSS option, if present. */
|
||||||
if(TCPH_HDRLEN(tcphdr) > 0x5) {
|
if (TCPH_HDRLEN(tcphdr) > 0x5) {
|
||||||
max_c = (TCPH_HDRLEN(tcphdr) - 5) << 2;
|
max_c = (TCPH_HDRLEN(tcphdr) - 5) << 2;
|
||||||
for (c = 0; c < max_c; ) {
|
for (c = 0; c < max_c; ) {
|
||||||
opt = opts[c];
|
opt = opts[c];
|
||||||
@ -1612,6 +1614,29 @@ tcp_parseopt(struct tcp_pcb *pcb)
|
|||||||
/* Advance to next option */
|
/* Advance to next option */
|
||||||
c += 0x04;
|
c += 0x04;
|
||||||
break;
|
break;
|
||||||
|
#if LWIP_WND_SCALE
|
||||||
|
case 0x03:
|
||||||
|
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: WND_SCALE\n"));
|
||||||
|
if (opts[c + 1] != 0x03 || c + 0x03 > max_c) {
|
||||||
|
/* Bad length */
|
||||||
|
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n"));
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/* If syn was received with wnd scale option,
|
||||||
|
activate wnd scale opt */
|
||||||
|
if (flags & TCP_SYN) {
|
||||||
|
/* An WND_SCALE option with the right option length. */
|
||||||
|
pcb->snd_scale = opts[c + 2];
|
||||||
|
if (pcb->snd_scale > 14U) {
|
||||||
|
pcb->snd_scale = 14U;
|
||||||
|
}
|
||||||
|
pcb->rcv_scale = TCP_RCV_SCALE;
|
||||||
|
pcb->flags |= TF_WND_SCALE;
|
||||||
|
}
|
||||||
|
/* Advance to next option */
|
||||||
|
c += 0x03;
|
||||||
|
break;
|
||||||
|
#endif
|
||||||
#if LWIP_TCP_TIMESTAMPS
|
#if LWIP_TCP_TIMESTAMPS
|
||||||
case 0x08:
|
case 0x08:
|
||||||
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: TS\n"));
|
LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: TS\n"));
|
||||||
|
3037
src/core/tcp_out.c
3037
src/core/tcp_out.c
File diff suppressed because it is too large
Load Diff
@ -1,247 +1,247 @@
|
|||||||
/*
|
/*
|
||||||
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
|
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
|
||||||
* All rights reserved.
|
* All rights reserved.
|
||||||
*
|
*
|
||||||
* Redistribution and use in source and binary forms, with or without modification,
|
* Redistribution and use in source and binary forms, with or without modification,
|
||||||
* are permitted provided that the following conditions are met:
|
* are permitted provided that the following conditions are met:
|
||||||
*
|
*
|
||||||
* 1. Redistributions of source code must retain the above copyright notice,
|
* 1. Redistributions of source code must retain the above copyright notice,
|
||||||
* this list of conditions and the following disclaimer.
|
* this list of conditions and the following disclaimer.
|
||||||
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
* this list of conditions and the following disclaimer in the documentation
|
* this list of conditions and the following disclaimer in the documentation
|
||||||
* and/or other materials provided with the distribution.
|
* and/or other materials provided with the distribution.
|
||||||
* 3. The name of the author may not be used to endorse or promote products
|
* 3. The name of the author may not be used to endorse or promote products
|
||||||
* derived from this software without specific prior written permission.
|
* derived from this software without specific prior written permission.
|
||||||
*
|
*
|
||||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
||||||
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
||||||
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
||||||
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
||||||
* OF SUCH DAMAGE.
|
* OF SUCH DAMAGE.
|
||||||
*
|
*
|
||||||
* This file is part of the lwIP TCP/IP stack.
|
* This file is part of the lwIP TCP/IP stack.
|
||||||
*
|
*
|
||||||
* Author: Adam Dunkels <adam@sics.se>
|
* Author: Adam Dunkels <adam@sics.se>
|
||||||
*
|
*
|
||||||
*/
|
*/
|
||||||
#ifndef __LWIP_IP4_ADDR_H__
|
#ifndef __LWIP_IP4_ADDR_H__
|
||||||
#define __LWIP_IP4_ADDR_H__
|
#define __LWIP_IP4_ADDR_H__
|
||||||
|
|
||||||
#include "lwip/opt.h"
|
#include "lwip/opt.h"
|
||||||
#include "lwip/def.h"
|
#include "lwip/def.h"
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
extern "C" {
|
extern "C" {
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/* This is the aligned version of ip_addr_t,
|
/* This is the aligned version of ip_addr_t,
|
||||||
used as local variable, on the stack, etc. */
|
used as local variable, on the stack, etc. */
|
||||||
struct ip_addr {
|
struct ip_addr {
|
||||||
u32_t addr;
|
u32_t addr;
|
||||||
};
|
};
|
||||||
|
|
||||||
/* This is the packed version of ip_addr_t,
|
/* This is the packed version of ip_addr_t,
|
||||||
used in network headers that are itself packed */
|
used in network headers that are itself packed */
|
||||||
#ifdef PACK_STRUCT_USE_INCLUDES
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||||||
# include "arch/bpstruct.h"
|
# include "arch/bpstruct.h"
|
||||||
#endif
|
#endif
|
||||||
PACK_STRUCT_BEGIN
|
PACK_STRUCT_BEGIN
|
||||||
struct ip_addr_packed {
|
struct ip_addr_packed {
|
||||||
PACK_STRUCT_FIELD(u32_t addr);
|
PACK_STRUCT_FIELD(u32_t addr);
|
||||||
} PACK_STRUCT_STRUCT;
|
} PACK_STRUCT_STRUCT;
|
||||||
PACK_STRUCT_END
|
PACK_STRUCT_END
|
||||||
#ifdef PACK_STRUCT_USE_INCLUDES
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||||||
# include "arch/epstruct.h"
|
# include "arch/epstruct.h"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/** ip_addr_t uses a struct for convenience only, so that the same defines can
|
/** ip_addr_t uses a struct for convenience only, so that the same defines can
|
||||||
* operate both on ip_addr_t as well as on ip_addr_p_t. */
|
* operate both on ip_addr_t as well as on ip_addr_p_t. */
|
||||||
typedef struct ip_addr ip_addr_t;
|
typedef struct ip_addr ip_addr_t;
|
||||||
typedef struct ip_addr_packed ip_addr_p_t;
|
typedef struct ip_addr_packed ip_addr_p_t;
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* struct ipaddr2 is used in the definition of the ARP packet format in
|
* struct ipaddr2 is used in the definition of the ARP packet format in
|
||||||
* order to support compilers that don't have structure packing.
|
* order to support compilers that don't have structure packing.
|
||||||
*/
|
*/
|
||||||
#ifdef PACK_STRUCT_USE_INCLUDES
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||||||
# include "arch/bpstruct.h"
|
# include "arch/bpstruct.h"
|
||||||
#endif
|
#endif
|
||||||
PACK_STRUCT_BEGIN
|
PACK_STRUCT_BEGIN
|
||||||
struct ip_addr2 {
|
struct ip_addr2 {
|
||||||
PACK_STRUCT_FIELD(u16_t addrw[2]);
|
PACK_STRUCT_FIELD(u16_t addrw[2]);
|
||||||
} PACK_STRUCT_STRUCT;
|
} PACK_STRUCT_STRUCT;
|
||||||
PACK_STRUCT_END
|
PACK_STRUCT_END
|
||||||
#ifdef PACK_STRUCT_USE_INCLUDES
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
||||||
# include "arch/epstruct.h"
|
# include "arch/epstruct.h"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/* Forward declaration to not include netif.h */
|
/* Forward declaration to not include netif.h */
|
||||||
struct netif;
|
struct netif;
|
||||||
|
|
||||||
extern const ip_addr_t ip_addr_any;
|
extern const ip_addr_t ip_addr_any;
|
||||||
extern const ip_addr_t ip_addr_broadcast;
|
extern const ip_addr_t ip_addr_broadcast;
|
||||||
|
|
||||||
/** IP_ADDR_ can be used as a fixed IP address
|
/** IP_ADDR_ can be used as a fixed IP address
|
||||||
* for the wildcard and the broadcast address
|
* for the wildcard and the broadcast address
|
||||||
*/
|
*/
|
||||||
#define IP_ADDR_ANY ((ip_addr_t *)&ip_addr_any)
|
#define IP_ADDR_ANY ((ip_addr_t *)&ip_addr_any)
|
||||||
#define IP_ADDR_BROADCAST ((ip_addr_t *)&ip_addr_broadcast)
|
#define IP_ADDR_BROADCAST ((ip_addr_t *)&ip_addr_broadcast)
|
||||||
|
|
||||||
/** 255.255.255.255 */
|
/** 255.255.255.255 */
|
||||||
#define IPADDR_NONE ((u32_t)0xffffffffUL)
|
#define IPADDR_NONE ((u32_t)0xffffffffUL)
|
||||||
/** 127.0.0.1 */
|
/** 127.0.0.1 */
|
||||||
#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL)
|
#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL)
|
||||||
/** 0.0.0.0 */
|
/** 0.0.0.0 */
|
||||||
#define IPADDR_ANY ((u32_t)0x00000000UL)
|
#define IPADDR_ANY ((u32_t)0x00000000UL)
|
||||||
/** 255.255.255.255 */
|
/** 255.255.255.255 */
|
||||||
#define IPADDR_BROADCAST ((u32_t)0xffffffffUL)
|
#define IPADDR_BROADCAST ((u32_t)0xffffffffUL)
|
||||||
|
|
||||||
/* Definitions of the bits in an Internet address integer.
|
/* Definitions of the bits in an Internet address integer.
|
||||||
|
|
||||||
On subnets, host and network parts are found according to
|
On subnets, host and network parts are found according to
|
||||||
the subnet mask, not these masks. */
|
the subnet mask, not these masks. */
|
||||||
#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
|
#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
|
||||||
#define IP_CLASSA_NET 0xff000000
|
#define IP_CLASSA_NET 0xff000000
|
||||||
#define IP_CLASSA_NSHIFT 24
|
#define IP_CLASSA_NSHIFT 24
|
||||||
#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET)
|
#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET)
|
||||||
#define IP_CLASSA_MAX 128
|
#define IP_CLASSA_MAX 128
|
||||||
|
|
||||||
#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
|
#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
|
||||||
#define IP_CLASSB_NET 0xffff0000
|
#define IP_CLASSB_NET 0xffff0000
|
||||||
#define IP_CLASSB_NSHIFT 16
|
#define IP_CLASSB_NSHIFT 16
|
||||||
#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET)
|
#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET)
|
||||||
#define IP_CLASSB_MAX 65536
|
#define IP_CLASSB_MAX 65536
|
||||||
|
|
||||||
#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
|
#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
|
||||||
#define IP_CLASSC_NET 0xffffff00
|
#define IP_CLASSC_NET 0xffffff00
|
||||||
#define IP_CLASSC_NSHIFT 8
|
#define IP_CLASSC_NSHIFT 8
|
||||||
#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET)
|
#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET)
|
||||||
|
|
||||||
#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
|
#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
|
||||||
#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */
|
#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */
|
||||||
#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */
|
#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */
|
||||||
#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */
|
#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */
|
||||||
#define IP_MULTICAST(a) IP_CLASSD(a)
|
#define IP_MULTICAST(a) IP_CLASSD(a)
|
||||||
|
|
||||||
#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
||||||
#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
|
||||||
|
|
||||||
#define IP_LOOPBACKNET 127 /* official! */
|
#define IP_LOOPBACKNET 127 /* official! */
|
||||||
|
|
||||||
|
|
||||||
#if BYTE_ORDER == BIG_ENDIAN
|
#if BYTE_ORDER == BIG_ENDIAN
|
||||||
/** Set an IP address given by the four byte-parts */
|
/** Set an IP address given by the four byte-parts */
|
||||||
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
||||||
(ipaddr)->addr = ((u32_t)((a) & 0xff) << 24) | \
|
(ipaddr)->addr = ((u32_t)((a) & 0xff) << 24) | \
|
||||||
((u32_t)((b) & 0xff) << 16) | \
|
((u32_t)((b) & 0xff) << 16) | \
|
||||||
((u32_t)((c) & 0xff) << 8) | \
|
((u32_t)((c) & 0xff) << 8) | \
|
||||||
(u32_t)((d) & 0xff)
|
(u32_t)((d) & 0xff)
|
||||||
#else
|
#else
|
||||||
/** Set an IP address given by the four byte-parts.
|
/** Set an IP address given by the four byte-parts.
|
||||||
Little-endian version that prevents the use of htonl. */
|
Little-endian version that prevents the use of htonl. */
|
||||||
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
#define IP4_ADDR(ipaddr, a,b,c,d) \
|
||||||
(ipaddr)->addr = ((u32_t)((d) & 0xff) << 24) | \
|
(ipaddr)->addr = ((u32_t)((d) & 0xff) << 24) | \
|
||||||
((u32_t)((c) & 0xff) << 16) | \
|
((u32_t)((c) & 0xff) << 16) | \
|
||||||
((u32_t)((b) & 0xff) << 8) | \
|
((u32_t)((b) & 0xff) << 8) | \
|
||||||
(u32_t)((a) & 0xff)
|
(u32_t)((a) & 0xff)
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/** MEMCPY-like copying of IP addresses where addresses are known to be
|
/** MEMCPY-like copying of IP addresses where addresses are known to be
|
||||||
* 16-bit-aligned if the port is correctly configured (so a port could define
|
* 16-bit-aligned if the port is correctly configured (so a port could define
|
||||||
* this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
|
* this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
|
||||||
#ifndef IPADDR2_COPY
|
#ifndef IPADDR2_COPY
|
||||||
#define IPADDR2_COPY(dest, src) SMEMCPY(dest, src, sizeof(ip_addr_t))
|
#define IPADDR2_COPY(dest, src) SMEMCPY(dest, src, sizeof(ip_addr_t))
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/** Copy IP address - faster than ip_addr_set: no NULL check */
|
/** Copy IP address - faster than ip_addr_set: no NULL check */
|
||||||
#define ip_addr_copy(dest, src) ((dest).addr = (src).addr)
|
#define ip_addr_copy(dest, src) ((dest).addr = (src).addr)
|
||||||
/** Safely copy one IP address to another (src may be NULL) */
|
/** Safely copy one IP address to another (src may be NULL) */
|
||||||
#define ip_addr_set(dest, src) ((dest)->addr = \
|
#define ip_addr_set(dest, src) ((dest)->addr = \
|
||||||
((src) == NULL ? 0 : \
|
((src) == NULL ? 0 : \
|
||||||
(src)->addr))
|
(src)->addr))
|
||||||
/** Set complete address to zero */
|
/** Set complete address to zero */
|
||||||
#define ip_addr_set_zero(ipaddr) ((ipaddr)->addr = 0)
|
#define ip_addr_set_zero(ipaddr) ((ipaddr)->addr = 0)
|
||||||
/** Set address to IPADDR_ANY (no need for htonl()) */
|
/** Set address to IPADDR_ANY (no need for htonl()) */
|
||||||
#define ip_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY)
|
#define ip_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY)
|
||||||
/** Set address to loopback address */
|
/** Set address to loopback address */
|
||||||
#define ip_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
|
#define ip_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
|
||||||
/** Safely copy one IP address to another and change byte order
|
/** Safely copy one IP address to another and change byte order
|
||||||
* from host- to network-order. */
|
* from host- to network-order. */
|
||||||
#define ip_addr_set_hton(dest, src) ((dest)->addr = \
|
#define ip_addr_set_hton(dest, src) ((dest)->addr = \
|
||||||
((src) == NULL ? 0:\
|
((src) == NULL ? 0:\
|
||||||
htonl((src)->addr)))
|
htonl((src)->addr)))
|
||||||
/** IPv4 only: set the IP address given as an u32_t */
|
/** IPv4 only: set the IP address given as an u32_t */
|
||||||
#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
|
#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
|
||||||
/** IPv4 only: get the IP address as an u32_t */
|
/** IPv4 only: get the IP address as an u32_t */
|
||||||
#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
|
#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
|
||||||
|
|
||||||
/** Get the network address by combining host address with netmask */
|
/** Get the network address by combining host address with netmask */
|
||||||
#define ip_addr_get_network(target, host, netmask) ((target)->addr = ((host)->addr) & ((netmask)->addr))
|
#define ip_addr_get_network(target, host, netmask) ((target)->addr = ((host)->addr) & ((netmask)->addr))
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Determine if two address are on the same network.
|
* Determine if two address are on the same network.
|
||||||
*
|
*
|
||||||
* @arg addr1 IP address 1
|
* @arg addr1 IP address 1
|
||||||
* @arg addr2 IP address 2
|
* @arg addr2 IP address 2
|
||||||
* @arg mask network identifier mask
|
* @arg mask network identifier mask
|
||||||
* @return !0 if the network identifiers of both address match
|
* @return !0 if the network identifiers of both address match
|
||||||
*/
|
*/
|
||||||
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
|
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
|
||||||
(mask)->addr) == \
|
(mask)->addr) == \
|
||||||
((addr2)->addr & \
|
((addr2)->addr & \
|
||||||
(mask)->addr))
|
(mask)->addr))
|
||||||
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
|
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
|
||||||
|
|
||||||
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
|
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
|
||||||
|
|
||||||
#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
|
#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
|
||||||
u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif);
|
u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif);
|
||||||
|
|
||||||
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
|
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
|
||||||
u8_t ip4_addr_netmask_valid(u32_t netmask);
|
u8_t ip4_addr_netmask_valid(u32_t netmask);
|
||||||
|
|
||||||
#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
|
#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
|
||||||
|
|
||||||
#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
|
#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
|
||||||
|
|
||||||
#define ip_addr_debug_print(debug, ipaddr) \
|
#define ip_addr_debug_print(debug, ipaddr) \
|
||||||
LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, \
|
LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, \
|
||||||
ipaddr != NULL ? ip4_addr1_16(ipaddr) : 0, \
|
ipaddr != NULL ? ip4_addr1_16(ipaddr) : 0, \
|
||||||
ipaddr != NULL ? ip4_addr2_16(ipaddr) : 0, \
|
ipaddr != NULL ? ip4_addr2_16(ipaddr) : 0, \
|
||||||
ipaddr != NULL ? ip4_addr3_16(ipaddr) : 0, \
|
ipaddr != NULL ? ip4_addr3_16(ipaddr) : 0, \
|
||||||
ipaddr != NULL ? ip4_addr4_16(ipaddr) : 0))
|
ipaddr != NULL ? ip4_addr4_16(ipaddr) : 0))
|
||||||
|
|
||||||
/* Get one byte from the 4-byte address */
|
/* Get one byte from the 4-byte address */
|
||||||
#define ip4_addr1(ipaddr) (((u8_t*)(ipaddr))[0])
|
#define ip4_addr1(ipaddr) (((u8_t*)(ipaddr))[0])
|
||||||
#define ip4_addr2(ipaddr) (((u8_t*)(ipaddr))[1])
|
#define ip4_addr2(ipaddr) (((u8_t*)(ipaddr))[1])
|
||||||
#define ip4_addr3(ipaddr) (((u8_t*)(ipaddr))[2])
|
#define ip4_addr3(ipaddr) (((u8_t*)(ipaddr))[2])
|
||||||
#define ip4_addr4(ipaddr) (((u8_t*)(ipaddr))[3])
|
#define ip4_addr4(ipaddr) (((u8_t*)(ipaddr))[3])
|
||||||
/* These are cast to u16_t, with the intent that they are often arguments
|
/* These are cast to u16_t, with the intent that they are often arguments
|
||||||
* to printf using the U16_F format from cc.h. */
|
* to printf using the U16_F format from cc.h. */
|
||||||
#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
|
#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
|
||||||
#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
|
#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
|
||||||
#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
|
#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
|
||||||
#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
|
#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
|
||||||
|
|
||||||
#define IP4ADDR_STRLEN_MAX 16
|
#define IP4ADDR_STRLEN_MAX 16
|
||||||
#define IPADDR_STRLEN_MAX IP4ADDR_STRLEN_MAX
|
#define IPADDR_STRLEN_MAX IP4ADDR_STRLEN_MAX
|
||||||
|
|
||||||
/** For backwards compatibility */
|
/** For backwards compatibility */
|
||||||
#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr)
|
#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr)
|
||||||
|
|
||||||
u32_t ipaddr_addr(const char *cp);
|
u32_t ipaddr_addr(const char *cp);
|
||||||
int ipaddr_aton(const char *cp, ip_addr_t *addr);
|
int ipaddr_aton(const char *cp, ip_addr_t *addr);
|
||||||
/** returns ptr to static buffer; not reentrant! */
|
/** returns ptr to static buffer; not reentrant! */
|
||||||
char *ipaddr_ntoa(const ip_addr_t *addr);
|
char *ipaddr_ntoa(const ip_addr_t *addr);
|
||||||
char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen);
|
char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen);
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
}
|
}
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#endif /* __LWIP_IP_ADDR_H__ */
|
#endif /* __LWIP_IP_ADDR_H__ */
|
||||||
|
@ -1080,6 +1080,19 @@
|
|||||||
#define LWIP_CALLBACK_API 1
|
#define LWIP_CALLBACK_API 1
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
/**
|
||||||
|
* LWIP_WND_SCALE and TCP_RCV_SCALE:
|
||||||
|
* Set LWIP_WND_SCALE to 1 to enable window scaling.
|
||||||
|
* Set TCP_RCV_SCALE to the desired scaling factor (shift count in the
|
||||||
|
* range of [0..14]).
|
||||||
|
* When LWIP_WND_SCALE is enabled but TCP_RCV_SCALE is 0, we can use a large
|
||||||
|
* send window while having a small receive window only.
|
||||||
|
*/
|
||||||
|
#ifndef LWIP_WND_SCALE
|
||||||
|
#define LWIP_WND_SCALE 0
|
||||||
|
#define TCP_RCV_SCALE 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
----------------------------------
|
----------------------------------
|
||||||
|
@ -125,6 +125,18 @@ typedef void (*tcp_err_fn)(void *arg, err_t err);
|
|||||||
*/
|
*/
|
||||||
typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err);
|
typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err);
|
||||||
|
|
||||||
|
#if LWIP_WND_SCALE
|
||||||
|
#define RCV_WND_SCALE(pcb, wnd) (((wnd) >> (pcb)->rcv_scale))
|
||||||
|
#define SND_WND_SCALE(pcb, wnd) (((wnd) << (pcb)->snd_scale))
|
||||||
|
typedef u32_t tcpwnd_size_t;
|
||||||
|
typedef u16_t tcpflags_t;
|
||||||
|
#else
|
||||||
|
#define RCV_WND_SCALE(pcb, wnd) (wnd)
|
||||||
|
#define SND_WND_SCALE(pcb, wnd) (wnd)
|
||||||
|
typedef u16_t tcpwnd_size_t;
|
||||||
|
typedef u8_t tcpflags_t;
|
||||||
|
#endif
|
||||||
|
|
||||||
enum tcp_state {
|
enum tcp_state {
|
||||||
CLOSED = 0,
|
CLOSED = 0,
|
||||||
LISTEN = 1,
|
LISTEN = 1,
|
||||||
@ -176,15 +188,18 @@ struct tcp_pcb {
|
|||||||
/* ports are in host byte order */
|
/* ports are in host byte order */
|
||||||
u16_t remote_port;
|
u16_t remote_port;
|
||||||
|
|
||||||
u8_t flags;
|
tcpflags_t flags;
|
||||||
#define TF_ACK_DELAY ((u8_t)0x01U) /* Delayed ACK. */
|
#define TF_ACK_DELAY ((tcpflags_t)0x0001U) /* Delayed ACK. */
|
||||||
#define TF_ACK_NOW ((u8_t)0x02U) /* Immediate ACK. */
|
#define TF_ACK_NOW ((tcpflags_t)0x0002U) /* Immediate ACK. */
|
||||||
#define TF_INFR ((u8_t)0x04U) /* In fast recovery. */
|
#define TF_INFR ((tcpflags_t)0x0004U) /* In fast recovery. */
|
||||||
#define TF_TIMESTAMP ((u8_t)0x08U) /* Timestamp option enabled */
|
#define TF_TIMESTAMP ((tcpflags_t)0x0008U) /* Timestamp option enabled */
|
||||||
#define TF_RXCLOSED ((u8_t)0x10U) /* rx closed by tcp_shutdown */
|
#define TF_RXCLOSED ((tcpflags_t)0x0010U) /* rx closed by tcp_shutdown */
|
||||||
#define TF_FIN ((u8_t)0x20U) /* Connection was closed locally (FIN segment enqueued). */
|
#define TF_FIN ((tcpflags_t)0x0020U) /* Connection was closed locally (FIN segment enqueued). */
|
||||||
#define TF_NODELAY ((u8_t)0x40U) /* Disable Nagle algorithm */
|
#define TF_NODELAY ((tcpflags_t)0x0040U) /* Disable Nagle algorithm */
|
||||||
#define TF_NAGLEMEMERR ((u8_t)0x80U) /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */
|
#define TF_NAGLEMEMERR ((tcpflags_t)0x0080U) /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */
|
||||||
|
#if LWIP_WND_SCALE
|
||||||
|
#define TF_WND_SCALE ((tcpflags_t)0x0100U) /* Window Scale option enabled */
|
||||||
|
#endif
|
||||||
|
|
||||||
/* the rest of the fields are in host byte order
|
/* the rest of the fields are in host byte order
|
||||||
as we have to do some math with them */
|
as we have to do some math with them */
|
||||||
@ -196,8 +211,8 @@ struct tcp_pcb {
|
|||||||
|
|
||||||
/* receiver variables */
|
/* receiver variables */
|
||||||
u32_t rcv_nxt; /* next seqno expected */
|
u32_t rcv_nxt; /* next seqno expected */
|
||||||
u16_t rcv_wnd; /* receiver window available */
|
tcpwnd_size_t rcv_wnd; /* receiver window available */
|
||||||
u16_t rcv_ann_wnd; /* receiver window to announce */
|
tcpwnd_size_t rcv_ann_wnd; /* receiver window to announce */
|
||||||
u32_t rcv_ann_right_edge; /* announced right edge of window */
|
u32_t rcv_ann_right_edge; /* announced right edge of window */
|
||||||
|
|
||||||
/* Retransmission timer. */
|
/* Retransmission timer. */
|
||||||
@ -218,27 +233,27 @@ struct tcp_pcb {
|
|||||||
u32_t lastack; /* Highest acknowledged seqno. */
|
u32_t lastack; /* Highest acknowledged seqno. */
|
||||||
|
|
||||||
/* congestion avoidance/control variables */
|
/* congestion avoidance/control variables */
|
||||||
u16_t cwnd;
|
tcpwnd_size_t cwnd;
|
||||||
u16_t ssthresh;
|
tcpwnd_size_t ssthresh;
|
||||||
|
|
||||||
/* sender variables */
|
/* sender variables */
|
||||||
u32_t snd_nxt; /* next new seqno to be sent */
|
u32_t snd_nxt; /* next new seqno to be sent */
|
||||||
u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last
|
u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last
|
||||||
window update. */
|
window update. */
|
||||||
u32_t snd_lbb; /* Sequence number of next byte to be buffered. */
|
u32_t snd_lbb; /* Sequence number of next byte to be buffered. */
|
||||||
u16_t snd_wnd; /* sender window */
|
tcpwnd_size_t snd_wnd; /* sender window */
|
||||||
u16_t snd_wnd_max; /* the maximum sender window announced by the remote host */
|
tcpwnd_size_t snd_wnd_max; /* the maximum sender window announced by the remote host */
|
||||||
|
|
||||||
u16_t acked;
|
u16_t acked;
|
||||||
|
|
||||||
u16_t snd_buf; /* Available buffer space for sending (in bytes). */
|
tcpwnd_size_t snd_buf; /* Available buffer space for sending (in bytes). */
|
||||||
#define TCP_SNDQUEUELEN_OVERFLOW (0xffffU-3)
|
#define TCP_SNDQUEUELEN_OVERFLOW (0xffffU-3)
|
||||||
u16_t snd_queuelen; /* Available buffer space for sending (in pbufs). */
|
u16_t snd_queuelen; /* Available buffer space for sending (in pbufs). */
|
||||||
|
|
||||||
#if TCP_OVERSIZE
|
#if TCP_OVERSIZE
|
||||||
/* Extra bytes available at the end of the last pbuf in unsent. */
|
/* Extra bytes available at the end of the last pbuf in unsent. */
|
||||||
u16_t unsent_oversize;
|
u16_t unsent_oversize;
|
||||||
#endif /* TCP_OVERSIZE */
|
#endif /* TCP_OVERSIZE */
|
||||||
|
|
||||||
/* These are ordered by sequence number: */
|
/* These are ordered by sequence number: */
|
||||||
struct tcp_seg *unsent; /* Unsent (queued) segments. */
|
struct tcp_seg *unsent; /* Unsent (queued) segments. */
|
||||||
@ -281,6 +296,11 @@ struct tcp_pcb {
|
|||||||
|
|
||||||
/* KEEPALIVE counter */
|
/* KEEPALIVE counter */
|
||||||
u8_t keep_cnt_sent;
|
u8_t keep_cnt_sent;
|
||||||
|
|
||||||
|
#if LWIP_WND_SCALE
|
||||||
|
u8_t snd_scale;
|
||||||
|
u8_t rcv_scale;
|
||||||
|
#endif
|
||||||
};
|
};
|
||||||
|
|
||||||
struct tcp_pcb_listen {
|
struct tcp_pcb_listen {
|
||||||
|
File diff suppressed because it is too large
Load Diff
Loading…
x
Reference in New Issue
Block a user