diff options
Diffstat (limited to 'ext/lwip/src/core/tcp_out.c')
-rw-r--r-- | ext/lwip/src/core/tcp_out.c | 42 |
1 files changed, 20 insertions, 22 deletions
diff --git a/ext/lwip/src/core/tcp_out.c b/ext/lwip/src/core/tcp_out.c index d0b71d19..ee19fe06 100644 --- a/ext/lwip/src/core/tcp_out.c +++ b/ext/lwip/src/core/tcp_out.c @@ -197,7 +197,7 @@ tcp_create_segment(struct tcp_pcb *pcb, struct pbuf *p, u8_t flags, u32_t seqno, /* wnd and chksum are set in tcp_output */ seg->tcphdr->urgp = 0; return seg; -} +} /** * Allocate a PBUF_RAM pbuf, perhaps with extra space at the end. @@ -212,7 +212,7 @@ tcp_create_segment(struct tcp_pcb *pcb, struct pbuf *p, u8_t flags, u32_t seqno, * @param pcb The TCP connection that willo enqueue the pbuf. * @param apiflags API flags given to tcp_write. * @param first_seg true when this pbuf will be used in the first enqueued segment. - * @param + * @param */ #if TCP_OVERSIZE static struct pbuf * @@ -324,7 +324,6 @@ tcp_write_checks(struct tcp_pcb *pcb, u16_t len) pcb->flags |= TF_NAGLEMEMERR; return ERR_MEM; } - /* if (pcb->snd_queuelen != 0) { LWIP_ASSERT("tcp_write: pbufs on queue => at least one queue non-empty", pcb->unacked != NULL || pcb->unsent != NULL); @@ -332,7 +331,6 @@ tcp_write_checks(struct tcp_pcb *pcb, u16_t len) LWIP_ASSERT("tcp_write: no pbufs on queue => both queues empty", pcb->unacked == NULL && pcb->unsent == NULL); } - */ return ERR_OK; } @@ -381,7 +379,7 @@ tcp_write(struct tcp_pcb *pcb, const void *arg, u16_t len, u8_t apiflags) LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_write(pcb=%p, data=%p, len=%"U16_F", apiflags=%"U16_F")\n", (void *)pcb, arg, len, (u16_t)apiflags)); - LWIP_ERROR("tcp_write: arg == NULL (programmer violates API)", + LWIP_ERROR("tcp_write: arg == NULL (programmer violates API)", arg != NULL, return ERR_ARG;); err = tcp_write_checks(pcb, len); @@ -859,7 +857,7 @@ tcp_send_empty_ack(struct tcp_pcb *pcb) return ERR_BUF; } tcphdr = (struct tcp_hdr *)p->payload; - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, + LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: sending ACK for %"U32_F"\n", pcb->rcv_nxt)); /* remove ACK flags from the PCB, as we send an empty ACK now */ pcb->flags &= ~(TF_ACK_DELAY | TF_ACK_NOW); @@ -871,7 +869,7 @@ tcp_send_empty_ack(struct tcp_pcb *pcb) if (pcb->flags & TF_TIMESTAMP) { tcp_build_timestamp_option(pcb, (u32_t *)(tcphdr + 1)); } -#endif +#endif #if CHECKSUM_GEN_TCP tcphdr->chksum = inet_chksum_pseudo(p, &(pcb->local_ip), &(pcb->remote_ip), @@ -952,7 +950,7 @@ tcp_output(struct tcp_pcb *pcb) ", seg == NULL, ack %"U32_F"\n", pcb->snd_wnd, pcb->cwnd, wnd, pcb->lastack)); } else { - LWIP_DEBUGF(TCP_CWND_DEBUG, + LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_output: snd_wnd %"U16_F", cwnd %"U16_F", wnd %"U32_F ", effwnd %"U32_F", seq %"U32_F", ack %"U32_F"\n", pcb->snd_wnd, pcb->cwnd, wnd, @@ -963,7 +961,7 @@ tcp_output(struct tcp_pcb *pcb) /* data available and window allows it to be sent? */ while (seg != NULL && ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len <= wnd) { - LWIP_ASSERT("RST not expected here!", + LWIP_ASSERT("RST not expected here!", (TCPH_FLAGS(seg->tcphdr) & TCP_RST) == 0); /* Stop sending if the nagle algorithm would prevent it * Don't stop: @@ -1088,7 +1086,7 @@ tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb) } #endif - /* Set retransmission timer running if it is not currently enabled + /* Set retransmission timer running if it is not currently enabled This must be set before checking the route. */ if (pcb->rtime == -1) { pcb->rtime = 0; @@ -1319,12 +1317,12 @@ tcp_rexmit(struct tcp_pcb *pcb) * * @param pcb the tcp_pcb for which to retransmit the first unacked segment */ -void +void tcp_rexmit_fast(struct tcp_pcb *pcb) { if (pcb->unacked != NULL && !(pcb->flags & TF_INFR)) { /* This is fast retransmit. Retransmit the first unacked segment. */ - LWIP_DEBUGF(TCP_FR_DEBUG, + LWIP_DEBUGF(TCP_FR_DEBUG, ("tcp_receive: dupacks %"U16_F" (%"U32_F "), fast retransmit %"U32_F"\n", (u16_t)pcb->dupacks, pcb->lastack, @@ -1338,19 +1336,19 @@ tcp_rexmit_fast(struct tcp_pcb *pcb) } else { pcb->ssthresh = pcb->cwnd / 2; } - + /* The minimum value for ssthresh should be 2 MSS */ if (pcb->ssthresh < 2*pcb->mss) { - LWIP_DEBUGF(TCP_FR_DEBUG, + LWIP_DEBUGF(TCP_FR_DEBUG, ("tcp_receive: The minimum value for ssthresh %"U16_F " should be min 2 mss %"U16_F"...\n", pcb->ssthresh, 2*pcb->mss)); pcb->ssthresh = 2*pcb->mss; } - + pcb->cwnd = pcb->ssthresh + 3 * pcb->mss; pcb->flags |= TF_INFR; - } + } } @@ -1372,12 +1370,12 @@ tcp_keepalive(struct tcp_pcb *pcb) ip4_addr1_16(&pcb->remote_ip), ip4_addr2_16(&pcb->remote_ip), ip4_addr3_16(&pcb->remote_ip), ip4_addr4_16(&pcb->remote_ip))); - LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: tcp_ticks %"U32_F" pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", + LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: tcp_ticks %"U32_F" pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", tcp_ticks, pcb->tmr, pcb->keep_cnt_sent)); - + p = tcp_output_alloc_header(pcb, 0, 0, htonl(pcb->snd_nxt - 1)); if(p == NULL) { - LWIP_DEBUGF(TCP_DEBUG, + LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: could not allocate memory for pbuf\n")); return; } @@ -1421,15 +1419,15 @@ tcp_zero_window_probe(struct tcp_pcb *pcb) u16_t len; u8_t is_fin; - LWIP_DEBUGF(TCP_DEBUG, + LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: sending ZERO WINDOW probe to %" U16_F".%"U16_F".%"U16_F".%"U16_F"\n", ip4_addr1_16(&pcb->remote_ip), ip4_addr2_16(&pcb->remote_ip), ip4_addr3_16(&pcb->remote_ip), ip4_addr4_16(&pcb->remote_ip))); - LWIP_DEBUGF(TCP_DEBUG, + LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: tcp_ticks %"U32_F - " pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", + " pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", tcp_ticks, pcb->tmr, pcb->keep_cnt_sent)); seg = pcb->unacked; |