diff --git a/ext/bin/lwip/liblwip.so b/ext/bin/lwip/liblwip.so index c315404a8..aba90d8e9 100755 Binary files a/ext/bin/lwip/liblwip.so and b/ext/bin/lwip/liblwip.so differ diff --git a/ext/lwip/src/core/tcp.c b/ext/lwip/src/core/tcp.c index b710d2e2a..105b68e74 100644 --- a/ext/lwip/src/core/tcp.c +++ b/ext/lwip/src/core/tcp.c @@ -10,9 +10,9 @@ /* * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, @@ -21,21 +21,21 @@ * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 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 - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * 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 + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT + * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * 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 * OF SUCH DAMAGE. * * This file is part of the lwIP TCP/IP stack. - * + * * Author: Adam Dunkels * */ @@ -72,17 +72,17 @@ #endif /* LWIP_TCP_KEEPALIVE */ const char * const tcp_state_str[] = { - "CLOSED", - "LISTEN", - "SYN_SENT", - "SYN_RCVD", - "ESTABLISHED", - "FIN_WAIT_1", - "FIN_WAIT_2", - "CLOSE_WAIT", - "CLOSING", - "LAST_ACK", - "TIME_WAIT" + "CLOSED", + "LISTEN", + "SYN_SENT", + "SYN_RCVD", + "ESTABLISHED", + "FIN_WAIT_1", + "FIN_WAIT_2", + "CLOSE_WAIT", + "CLOSING", + "LAST_ACK", + "TIME_WAIT" }; /* last local TCP port */ @@ -118,7 +118,7 @@ struct tcp_pcb *tcp_tmp_pcb; u8_t tcp_active_pcbs_changed; -/** Timer counter to handle calling slow-timer from tcp_tmr() */ +/** Timer counter to handle calling slow-timer from tcp_tmr() */ static u8_t tcp_timer; static u8_t tcp_timer_ctr; static u16_t tcp_new_port(void); @@ -202,7 +202,7 @@ tcp_close_shutdown(struct tcp_pcb *pcb, u8_t rst_on_unacked_data) * however, it is in this state once allocated and as yet unused * and the user needs some way to free it should the need arise. * Calling tcp_close() with a pcb that has already been closed, (i.e. twice) - * or for a pcb that has been used and then entered the CLOSED state + * or for a pcb that has been used and then entered the CLOSED state * is erroneous, but this should never happen as the pcb has in those cases * been freed, and so any remaining handles are bogus. */ err = ERR_OK; @@ -357,7 +357,7 @@ void tcp_abandon(struct tcp_pcb *pcb, int reset) { u32_t seqno, ackno; -#if LWIP_CALLBACK_API +#if LWIP_CALLBACK_API tcp_err_fn errf; #endif /* LWIP_CALLBACK_API */ void *errf_arg; @@ -385,7 +385,7 @@ tcp_abandon(struct tcp_pcb *pcb, int reset) if (pcb->unsent != NULL) { tcp_segs_free(pcb->unsent); } -#if TCP_QUEUE_OOSEQ +#if TCP_QUEUE_OOSEQ if (pcb->ooseq != NULL) { tcp_segs_free(pcb->ooseq); } @@ -570,7 +570,7 @@ tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog) return (struct tcp_pcb *)lpcb; } -/** +/** * Update the state that tracks the available window space to advertise. * * Returns how much extra window would be advertised if we sent an @@ -649,7 +649,7 @@ tcp_new_port(void) u8_t i; u16_t n = 0; struct tcp_pcb *pcb; - + again: if (tcp_port++ == TCP_LOCAL_PORT_RANGE_END) { tcp_port = TCP_LOCAL_PORT_RANGE_START; @@ -757,7 +757,7 @@ tcp_connect(struct tcp_pcb *pcb, ip_addr_t *ipaddr, u16_t port, pcb->ssthresh = pcb->mss * 10; #if LWIP_CALLBACK_API pcb->connected = connected; -#else /* LWIP_CALLBACK_API */ +#else /* LWIP_CALLBACK_API */ LWIP_UNUSED_ARG(connected); #endif /* LWIP_CALLBACK_API */ @@ -870,7 +870,7 @@ tcp_slowtmr_start: LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: cwnd %"U16_F " ssthresh %"U16_F"\n", pcb->cwnd, pcb->ssthresh)); - + /* The following needs to be called AFTER cwnd is set to one mss - STJ */ tcp_rexmit_rto(pcb); @@ -901,11 +901,11 @@ tcp_slowtmr_start: LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: KEEPALIVE timeout. Aborting connection 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))); - + ++pcb_remove; ++pcb_reset; } - else if((u32_t)(tcp_ticks - pcb->tmr) > + else if((u32_t)(tcp_ticks - pcb->tmr) > (pcb->keep_idle + pcb->keep_cnt_sent * TCP_KEEP_INTVL(pcb)) / TCP_SLOW_INTERVAL) { @@ -998,7 +998,7 @@ tcp_slowtmr_start: } } - + /* Steps through all of the TIME-WAIT PCBs. */ prev = NULL; pcb = tcp_tw_pcbs; @@ -1010,7 +1010,7 @@ tcp_slowtmr_start: if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) { ++pcb_remove; } - + /* If the PCB should be removed, do it. */ @@ -1172,7 +1172,7 @@ tcp_setprio(struct tcp_pcb *pcb, u8_t prio) * * @param seg the old tcp_seg * @return a copy of seg - */ + */ struct tcp_seg * tcp_seg_copy(struct tcp_seg *seg) { @@ -1182,7 +1182,7 @@ tcp_seg_copy(struct tcp_seg *seg) if (cseg == NULL) { return NULL; } - SMEMCPY((u8_t *)cseg, (const u8_t *)seg, sizeof(struct tcp_seg)); + SMEMCPY((u8_t *)cseg, (const u8_t *)seg, sizeof(struct tcp_seg)); pbuf_ref(cseg->p); return cseg; } @@ -1222,7 +1222,7 @@ tcp_kill_prio(u8_t prio) mprio = TCP_PRIO_MAX; - + /* We kill the oldest active connection that has lower priority than prio. */ inactivity = 0; inactive = NULL; @@ -1279,7 +1279,7 @@ tcp_alloc(u8_t prio) { struct tcp_pcb *pcb; u32_t iss; - + pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); if (pcb == NULL) { /* Try killing oldest connection in TIME-WAIT. */ @@ -1324,7 +1324,7 @@ tcp_alloc(u8_t prio) pcb->snd_wl2 = iss; pcb->snd_nxt = iss; pcb->lastack = iss; - pcb->snd_lbb = iss; + pcb->snd_lbb = iss; pcb->tmr = tcp_ticks; pcb->last_timer = tcp_timer_ctr; @@ -1332,11 +1332,11 @@ tcp_alloc(u8_t prio) #if LWIP_CALLBACK_API pcb->recv = tcp_recv_null; -#endif /* LWIP_CALLBACK_API */ - +#endif /* LWIP_CALLBACK_API */ + /* Init KEEPALIVE timer */ pcb->keep_idle = TCP_KEEPIDLE_DEFAULT; - + #if LWIP_TCP_KEEPALIVE pcb->keep_intvl = TCP_KEEPINTVL_DEFAULT; pcb->keep_cnt = TCP_KEEPCNT_DEFAULT; @@ -1371,7 +1371,7 @@ tcp_new(void) * * @param pcb tcp_pcb to set the callback argument * @param arg void pointer argument to pass to callback functions - */ + */ void tcp_arg(struct tcp_pcb *pcb, void *arg) { @@ -1387,7 +1387,7 @@ tcp_arg(struct tcp_pcb *pcb, void *arg) * * @param pcb tcp_pcb to set the recv callback * @param recv callback function to call for this pcb when data is received - */ + */ void tcp_recv(struct tcp_pcb *pcb, tcp_recv_fn recv) { @@ -1401,7 +1401,7 @@ tcp_recv(struct tcp_pcb *pcb, tcp_recv_fn recv) * * @param pcb tcp_pcb to set the sent callback * @param sent callback function to call for this pcb when data is successfully sent - */ + */ void tcp_sent(struct tcp_pcb *pcb, tcp_sent_fn sent) { @@ -1416,7 +1416,7 @@ tcp_sent(struct tcp_pcb *pcb, tcp_sent_fn sent) * @param pcb tcp_pcb to set the err callback * @param err callback function to call for this pcb when a fatal error * has occured on the connection - */ + */ void tcp_err(struct tcp_pcb *pcb, tcp_err_fn err) { @@ -1431,7 +1431,7 @@ tcp_err(struct tcp_pcb *pcb, tcp_err_fn err) * @param pcb tcp_pcb to set the accept callback * @param accept callback function to call for this pcb when LISTENing * connection has been connected to another host - */ + */ void tcp_accept(struct tcp_pcb *pcb, tcp_accept_fn accept) { @@ -1447,16 +1447,16 @@ tcp_accept(struct tcp_pcb *pcb, tcp_accept_fn accept) * from TCP. The interval is specified in terms of the TCP coarse * timer interval, which is called twice a second. * - */ + */ void tcp_poll(struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval) { LWIP_ASSERT("invalid socket state for poll", pcb->state != LISTEN); #if LWIP_CALLBACK_API pcb->poll = poll; -#else /* LWIP_CALLBACK_API */ +#else /* LWIP_CALLBACK_API */ LWIP_UNUSED_ARG(poll); -#endif /* LWIP_CALLBACK_API */ +#endif /* LWIP_CALLBACK_API */ pcb->pollinterval = interval; } @@ -1540,7 +1540,7 @@ tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb) TCP_RMV(pcblist, pcb); tcp_pcb_purge(pcb); - + /* if there is an outstanding delayed ACKs, send it */ if (pcb->state != TIME_WAIT && pcb->state != LISTEN && @@ -1571,7 +1571,7 @@ u32_t tcp_next_iss(void) { static u32_t iss = 6510; - + iss += tcp_ticks; /* XXX */ return iss; } @@ -1703,21 +1703,21 @@ tcp_debug_print_pcbs(void) pcb->local_port, pcb->remote_port, pcb->snd_nxt, pcb->rcv_nxt)); tcp_debug_print_state(pcb->state); - } + } LWIP_DEBUGF(TCP_DEBUG, ("Listen PCB states:\n")); for(pcb = (struct tcp_pcb *)tcp_listen_pcbs.pcbs; pcb != NULL; pcb = pcb->next) { LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", pcb->local_port, pcb->remote_port, pcb->snd_nxt, pcb->rcv_nxt)); tcp_debug_print_state(pcb->state); - } + } LWIP_DEBUGF(TCP_DEBUG, ("TIME-WAIT PCB states:\n")); for(pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", pcb->local_port, pcb->remote_port, pcb->snd_nxt, pcb->rcv_nxt)); tcp_debug_print_state(pcb->state); - } + } } /** diff --git a/ext/lwip/src/core/tcp_in.c b/ext/lwip/src/core/tcp_in.c index 4ec971ac0..051869ff9 100644 --- a/ext/lwip/src/core/tcp_in.c +++ b/ext/lwip/src/core/tcp_in.c @@ -6,7 +6,7 @@ * * These functions are generally called in the order (ip_input() ->) * tcp_input() -> * tcp_process() -> tcp_receive() (-> application). - * + * */ /* @@ -166,7 +166,7 @@ tcp_input(struct pbuf *p, struct netif *inp) for an active connection. */ prev = NULL; - + for(pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { LWIP_ASSERT("tcp_input: active pcb->state != CLOSED", pcb->state != CLOSED); LWIP_ASSERT("tcp_input: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); @@ -253,7 +253,7 @@ tcp_input(struct pbuf *p, struct netif *inp) /* put this listening pcb at the head of the listening list */ tcp_listen_pcbs.listen_pcbs = lpcb; } - + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packed for LISTENing connection.\n")); tcp_listen_input(lpcb); pbuf_free(p); @@ -588,7 +588,7 @@ tcp_process(struct tcp_pcb *pcb) acceptable = 1; } } else { - if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, + if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt+pcb->rcv_wnd)) { acceptable = 1; } @@ -609,12 +609,12 @@ tcp_process(struct tcp_pcb *pcb) } } - if ((flags & TCP_SYN) && (pcb->state != SYN_SENT && pcb->state != SYN_RCVD)) { + if ((flags & TCP_SYN) && (pcb->state != SYN_SENT && pcb->state != SYN_RCVD)) { /* Cope with new connection attempt after remote end crashed */ tcp_ack_now(pcb); return ERR_OK; } - + if ((pcb->flags & TF_RXCLOSED) == 0) { /* Update the PCB (in)activity timer unless rx is closed (see tcp_shutdown) */ pcb->tmr = tcp_ticks; @@ -892,7 +892,7 @@ tcp_receive(struct tcp_pcb *pcb) #if TCP_WND_DEBUG } else { if (pcb->snd_wnd != tcphdr->wnd) { - LWIP_DEBUGF(TCP_WND_DEBUG, + LWIP_DEBUGF(TCP_WND_DEBUG, ("tcp_receive: no window update lastack %"U32_F" ackno %" U32_F" wl1 %"U32_F" seqno %"U32_F" wl2 %"U32_F"\n", pcb->lastack, ackno, pcb->snd_wl1, seqno, pcb->snd_wl2)); @@ -902,17 +902,17 @@ tcp_receive(struct tcp_pcb *pcb) /* (From Stevens TCP/IP Illustrated Vol II, p970.) Its only a * duplicate ack if: - * 1) It doesn't ACK new data - * 2) length of received packet is zero (i.e. no payload) - * 3) the advertised window hasn't changed + * 1) It doesn't ACK new data + * 2) length of received packet is zero (i.e. no payload) + * 3) the advertised window hasn't changed * 4) There is outstanding unacknowledged data (retransmission timer running) * 5) The ACK is == biggest ACK sequence number so far seen (snd_una) - * - * If it passes all five, should process as a dupack: - * a) dupacks < 3: do nothing - * b) dupacks == 3: fast retransmit - * c) dupacks > 3: increase cwnd - * + * + * If it passes all five, should process as a dupack: + * a) dupacks < 3: do nothing + * b) dupacks == 3: fast retransmit + * c) dupacks > 3: increase cwnd + * * If it only passes 1-3, should reset dupack counter (and add to * stats, which we don't do in lwIP) * @@ -1053,7 +1053,7 @@ tcp_receive(struct tcp_pcb *pcb) ->unsent list after a retransmission, so these segments may in fact have been sent once. */ while (pcb->unsent != NULL && - TCP_SEQ_BETWEEN(ackno, ntohl(pcb->unsent->tcphdr->seqno) + + TCP_SEQ_BETWEEN(ackno, ntohl(pcb->unsent->tcphdr->seqno) + TCP_TCPLEN(pcb->unsent), pcb->snd_nxt)) { LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: removing %"U32_F":%"U32_F" from pcb->unsent\n", ntohl(pcb->unsent->tcphdr->seqno), ntohl(pcb->unsent->tcphdr->seqno) + @@ -1065,7 +1065,7 @@ tcp_receive(struct tcp_pcb *pcb) if (pcb->unsent == NULL) { 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_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= pbuf_clen(next->p))); /* Prevent ACK for FIN to generate a sent event */ @@ -1211,7 +1211,7 @@ tcp_receive(struct tcp_pcb *pcb) /* The sequence number must be within the window (above rcv_nxt and below rcv_nxt + rcv_wnd) in order to be further processed. */ - if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, + if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt + pcb->rcv_wnd - 1)){ if (pcb->rcv_nxt == seqno) { /* The incoming segment is the next in sequence. We check if @@ -1220,12 +1220,12 @@ tcp_receive(struct tcp_pcb *pcb) tcplen = TCP_TCPLEN(&inseg); if (tcplen > pcb->rcv_wnd) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: other end overran receive window" "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { - /* Must remove the FIN from the header as we're trimming + /* Must remove the FIN from the header as we're trimming * that byte of sequence-space from the packet */ TCPH_FLAGS_SET(inseg.tcphdr, TCPH_FLAGS(inseg.tcphdr) &~ TCP_FIN); } @@ -1245,7 +1245,7 @@ tcp_receive(struct tcp_pcb *pcb) - inseq overlaps with ooseq */ if (pcb->ooseq != NULL) { if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: received in-order FIN, binning ooseq queue\n")); /* Received in-order FIN means anything that was received * out of order must now have been received in-order, so @@ -1352,7 +1352,7 @@ tcp_receive(struct tcp_pcb *pcb) recv_flags |= TF_GOT_FIN; if (pcb->state == ESTABLISHED) { /* force passive close or we can move to active close */ pcb->state = CLOSE_WAIT; - } + } } pcb->ooseq = cseg->next; @@ -1465,12 +1465,12 @@ tcp_receive(struct tcp_pcb *pcb) } /* check if the remote side overruns our receive window */ if ((u32_t)tcplen + seqno > pcb->rcv_nxt + (u32_t)pcb->rcv_wnd) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, + LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: other end overran receive window" "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); if (TCPH_FLAGS(next->next->tcphdr) & TCP_FIN) { - /* Must remove the FIN from the header as we're trimming + /* Must remove the FIN from the header as we're trimming * that byte of sequence-space from the packet */ TCPH_FLAGS_SET(next->next->tcphdr, TCPH_FLAGS(next->next->tcphdr) &~ TCP_FIN); } @@ -1531,7 +1531,7 @@ tcp_receive(struct tcp_pcb *pcb) } /** - * Parses the options contained in the incoming segment. + * Parses the options contained in the incoming segment. * * Called from tcp_listen_input() and tcp_process(). * Currently, only the MSS option is supported! @@ -1588,7 +1588,7 @@ tcp_parseopt(struct tcp_pcb *pcb) return; } /* TCP timestamp option with valid length */ - tsval = (opts[c+2]) | (opts[c+3] << 8) | + tsval = (opts[c+2]) | (opts[c+3] << 8) | (opts[c+4] << 16) | (opts[c+5] << 24); if (flags & TCP_SYN) { pcb->ts_recent = ntohl(tsval); diff --git a/ext/lwip/src/core/tcp_out.c b/ext/lwip/src/core/tcp_out.c index ee19fe06f..94395e25d 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 * @@ -379,7 +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); @@ -857,7 +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); @@ -869,7 +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), @@ -950,7 +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, @@ -961,7 +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: @@ -1086,7 +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; @@ -1317,12 +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, @@ -1336,19 +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; - } + } } @@ -1370,12 +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; } @@ -1419,15 +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; diff --git a/ext/lwipopts.h b/ext/lwipopts.h index 7e7eab6c6..dd743cc38 100644 --- a/ext/lwipopts.h +++ b/ext/lwipopts.h @@ -116,7 +116,7 @@ #define MEM_SIZE 1024 * 1024 * 64 #define TCP_SND_BUF 1024 * 63 - +#define TCP_SND_QUEUELEN 1024 /*------------------------------------------------------------------------------ -------------------------- Internal Memory Pool Sizes -------------------------- ------------------------------------------------------------------------------*/ @@ -157,7 +157,7 @@ * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. * (requires the LWIP_TCP option) */ -#define MEMP_NUM_TCP_SEG 128 +#define MEMP_NUM_TCP_SEG 1024 /** * MEMP_NUM_REASSDATA: the number of simultaneously IP packets queued for diff --git a/netcon/Intercept.c b/netcon/Intercept.c index aed7d1855..c53c10156 100755 --- a/netcon/Intercept.c +++ b/netcon/Intercept.c @@ -494,6 +494,13 @@ int connect(CONNECT_SIG) return err; } + //int flags = fcntl(__fd, F_GETFD); + //dwr("connect(): socket flags = %d\n", flags); + + if(sock_type && O_NONBLOCK) { + dwr("connect(): O_NONBLOCK\n"); + } + /* assemble and route command */ int err; char cmd[BUF_SZ]; @@ -507,6 +514,10 @@ int connect(CONNECT_SIG) memcpy(&cmd[1], &rpc_st, sizeof(struct connect_st)); pthread_mutex_lock(&lock); send_command(fdret_sock, cmd); + if(sock_type && O_NONBLOCK) { + //pthread_mutex_unlock(&lock); + //return EINPROGRESS; + } err = get_retval(); pthread_mutex_unlock(&lock); return err; diff --git a/netcon/NetconEthernetTap.cpp b/netcon/NetconEthernetTap.cpp index 462e366da..003e0b66e 100644 --- a/netcon/NetconEthernetTap.cpp +++ b/netcon/NetconEthernetTap.cpp @@ -318,6 +318,8 @@ void NetconEthernetTap::threadMain() fprintf(stderr, "_threadMain()\n"); uint64_t prev_tcp_time = 0; uint64_t prev_etharp_time = 0; +fprintf(stderr, "- TCP_SND_QUEUELEN = %d\n", TCP_SND_QUEUELEN); +fprintf(stderr, "- TCP_MAXRTX = %d\n", TCP_MAXRTX); /* fprintf(stderr, "- MEM_SIZE = %dM\n", MEM_SIZE / (1024*1024)); @@ -327,7 +329,7 @@ void NetconEthernetTap::threadMain() fprintf(stderr, "- MEMP_NUM_TCP_PCB_LISTEN = %d\n", MEMP_NUM_TCP_PCB_LISTEN); fprintf(stderr, "- MEMP_NUM_TCP_SEG = %d\n", MEMP_NUM_TCP_SEG); fprintf(stderr, "- PBUF_POOL_SIZE = %d\n", PBUF_POOL_SIZE); - fprintf(stderr, "- TCP_SND_QUEUELEN = %d\n", TCP_SND_QUEUELEN); + fprintf(stderr, "- IP_REASSEMBLY = %d\n", IP_REASSEMBLY); fprintf(stderr, "- TCP_WND = %d\n", TCP_WND); fprintf(stderr, "- TCP_MSS = %d\n", TCP_MSS); @@ -376,9 +378,13 @@ void NetconEthernetTap::phyOnFileDescriptorActivity(PhySocket *sock,void **uptr, { if(readable) { TcpConnection *conn = (TcpConnection*)*uptr; - Mutex::Lock _l(lwipstack->_lock); if(conn->dataSock) // Sometimes a connection may be closed via nc_recved, check first + { + //Mutex::Lock _l(lwipstack->_lock); + //lwipstack->_lock.lock(); handle_write(conn); + //lwipstack->_lock.unlock(); + } } else { fprintf(stderr, "phyOnFileDescriptorActivity(): PhySocket not readable\n"); @@ -1144,8 +1150,9 @@ void NetconEthernetTap::handle_write(TcpConnection *conn) // NOTE: this assumes that lwipstack->_lock is locked, either // because we are in a callback or have locked it manually. int err = lwipstack->_tcp_write(conn->pcb, &conn->buf, r, TCP_WRITE_FLAG_COPY); + lwipstack->_tcp_output(conn->pcb); if(err != ERR_OK) { - fprintf(stderr, "handle_write(): error while writing to PCB\n"); + fprintf(stderr, "handle_write(): error while writing to PCB, (err = %d)\n", err); return; } else { diff --git a/netcon/libintercept.so.1.0 b/netcon/libintercept.so.1.0 index bb203d647..fa9cdf284 100755 Binary files a/netcon/libintercept.so.1.0 and b/netcon/libintercept.so.1.0 differ diff --git a/netcon/liblwip.so b/netcon/liblwip.so new file mode 100755 index 000000000..aba90d8e9 Binary files /dev/null and b/netcon/liblwip.so differ