mirror of
https://github.com/esp8266/Arduino.git
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Lwip addons (#2260)
* Add multicast TTL to UDP and rework UdpContext * Add limit for TCP TIME_WAIT pcbs * Add liblwip_gcc.a * Make the changes be backward compatible with the current xcc version
This commit is contained in:
Me No Dev
Ivan Grokhotkov
parent
86067333f5
commit
07f4d4c241
@ -1680,7 +1680,7 @@ coredev.build.lwip_flags=
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coredev.menu.LwIPVariant.Espressif=Espressif (xcc)
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coredev.menu.LwIPVariant.Espressif.build.lwip_lib=-llwip
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coredev.menu.LwIPVariant.Espressif.build.lwip_flags=
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coredev.menu.LwIPVariant.Espressif.build.lwip_flags=-DLWIP_MAYBE_XCC
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coredev.menu.LwIPVariant.Prebuilt=Prebuilt Source (gcc)
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coredev.menu.LwIPVariant.Prebuilt.build.lwip_lib=-llwip_gcc
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coredev.menu.LwIPVariant.Prebuilt.build.lwip_flags=-DLWIP_OPEN_SRC
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@ -44,11 +44,11 @@ public:
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, _tx_buf_head(0)
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, _tx_buf_cur(0)
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, _tx_buf_offset(0)
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, _multicast_ttl(1)
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, _dest_port(0)
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{
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_pcb = udp_new();
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_dest_addr.addr = 0;
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#ifdef LWIP_MAYBE_XCC
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_mcast_ttl = 1;
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#endif
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}
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~UdpContext()
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@ -87,8 +87,8 @@ public:
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bool connect(ip_addr_t addr, uint16_t port)
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{
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_dest_addr = addr;
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_dest_port = port;
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ip_addr_copy(_pcb->remote_ip, addr);
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_pcb->remote_port = port;
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return true;
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}
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@ -106,17 +106,16 @@ public:
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void setMulticastInterface(ip_addr_t addr)
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{
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// newer versions of lwip have a macro to set the multicast ip
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// udp_set_multicast_netif_addr(_pcb, addr);
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_pcb->multicast_ip = addr;
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udp_set_multicast_netif_addr(_pcb, addr);
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}
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void setMulticastTTL(int ttl)
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{
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// newer versions of lwip have an additional field (mcast_ttl) for this purpose
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// and a macro to set it instead of direct field access
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// udp_set_multicast_ttl(_pcb, ttl);
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_multicast_ttl = ttl;
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#ifdef LWIP_MAYBE_XCC
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_mcast_ttl = ttl;
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#else
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udp_set_multicast_ttl(_pcb, ttl);
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#endif
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}
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// warning: handler is called from tcp stack context
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@ -275,20 +274,22 @@ public:
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if (!addr) {
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addr = &_dest_addr;
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port = _dest_port;
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addr = &_pcb->remote_ip;
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port = _pcb->remote_port;
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}
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#ifdef LWIP_MAYBE_XCC
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uint16_t old_ttl = _pcb->ttl;
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if (ip_addr_ismulticast(addr)) {
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_pcb->ttl = _multicast_ttl;
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_pcb->ttl = _mcast_ttl;
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}
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#endif
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err_t err = udp_sendto(_pcb, tx_copy, addr, port);
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if (err != ERR_OK) {
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DEBUGV(":ust rc=%d\r\n", err);
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}
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#ifdef LWIP_MAYBE_XCC
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_pcb->ttl = old_ttl;
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#endif
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pbuf_free(tx_copy);
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return err == ERR_OK;
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}
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@ -365,10 +366,10 @@ private:
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pbuf* _tx_buf_head;
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pbuf* _tx_buf_cur;
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size_t _tx_buf_offset;
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uint16_t _multicast_ttl;
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uint16_t _dest_port;
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ip_addr_t _dest_addr;
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rxhandler_t _on_rx;
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#ifdef LWIP_MAYBE_XCC
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uint16_t _mcast_ttl;
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#endif
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};
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Binary file not shown.
@ -1,8 +1,8 @@
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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@ -11,21 +11,21 @@
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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@ -284,7 +284,7 @@ struct tcp_seg {
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u16_t oversize_left; /* Extra bytes available at the end of the last
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pbuf in unsent (used for asserting vs.
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tcp_pcb.unsent_oversized only) */
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#endif /* TCP_OVERSIZE_DBGCHECK */
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#endif /* TCP_OVERSIZE_DBGCHECK */
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#if TCP_CHECKSUM_ON_COPY
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u16_t chksum;
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u8_t chksum_swapped;
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@ -313,7 +313,7 @@ extern u32_t tcp_ticks;
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/* The TCP PCB lists. */
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union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
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struct tcp_pcb_listen *listen_pcbs;
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struct tcp_pcb_listen *listen_pcbs;
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struct tcp_pcb *pcbs;
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};
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extern struct tcp_pcb *tcp_bound_pcbs;
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@ -325,7 +325,7 @@ extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. *
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extern struct tcp_pcb *tcp_tmp_pcb; /* Only used for temporary storage. */
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/* Axioms about the above lists:
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/* Axioms about the above lists:
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1) Every TCP PCB that is not CLOSED is in one of the lists.
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2) A PCB is only in one of the lists.
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3) All PCBs in the tcp_listen_pcbs list is in LISTEN state.
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@ -396,6 +396,26 @@ extern struct tcp_pcb *tcp_tmp_pcb; /* Only used for temporary storage. */
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#endif /* LWIP_DEBUG */
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#define TCP_TW_LIMIT(l) \
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do { \
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u32_t tcp_tmp_pcbs_count = 0; \
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tcp_tmp_pcb = tcp_tw_pcbs; \
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while(tcp_tmp_pcb != NULL) { \
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if(++tcp_tmp_pcbs_count == (l)) { \
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struct tcp_pcb *_tcp_tmp_pcb = tcp_tmp_pcb->next; \
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tcp_tmp_pcb->next = NULL; \
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tcp_tmp_pcb = _tcp_tmp_pcb; \
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while(tcp_tmp_pcb != NULL) { \
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_tcp_tmp_pcb = tcp_tmp_pcb; \
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tcp_pcb_purge(tcp_tmp_pcb); \
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tcp_tmp_pcb = tcp_tmp_pcb->next; \
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memp_free(MEMP_TCP_PCB, _tcp_tmp_pcb); \
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} \
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break; \
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} \
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tcp_tmp_pcb = tcp_tmp_pcb->next; \
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} \
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} while(0)
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/* Internal functions: */
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struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
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@ -1,8 +1,8 @@
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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@ -11,21 +11,21 @@
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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@ -103,6 +103,10 @@ struct udp_pcb {
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#if LWIP_IGMP
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/** outgoing network interface for multicast packets */
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ip_addr_t multicast_ip;
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#ifndef LWIP_MAYBE_XCC
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/** TTL for outgoing multicast packets */
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u8_t mcast_ttl;
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#endif /* LWIP_MAYBE_XCC */
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#endif /* LWIP_IGMP */
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#if LWIP_UDPLITE
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@ -113,7 +117,7 @@ struct udp_pcb {
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/** receive callback function */
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udp_recv_fn recv;
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/** user-supplied argument for the recv callback */
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void *recv_arg;
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void *recv_arg;
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};
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/* udp_pcbs export for exernal reference (e.g. SNMP agent) */
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extern struct udp_pcb *udp_pcbs;
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@ -156,6 +160,15 @@ void udp_input (struct pbuf *p, struct netif *inp)ICACHE_FLASH_
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#define udp_init() /* Compatibility define, not init needed. */
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#if LWIP_IGMP
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#define udp_set_multicast_netif_addr(pcb, ipaddr) ip_addr_copy((pcb)->multicast_ip, (ipaddr))
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#define udp_get_multicast_netif_addr(pcb) ((pcb)->multicast_ip)
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#ifndef LWIP_MAYBE_XCC
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#define udp_set_multicast_ttl(pcb, value) do { (pcb)->mcast_ttl = value; } while(0)
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#define udp_get_multicast_ttl(pcb) ((pcb)->mcast_ttl)
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#endif /* LWIP_MAYBE_XCC */
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#endif /* LWIP_IGMP */
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#if UDP_DEBUG
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void udp_debug_print(struct udp_hdr *udphdr)ICACHE_FLASH_ATTR;
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#else
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@ -6,9 +6,9 @@
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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@ -17,21 +17,21 @@
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
|
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* derived from this software without specific prior written permission.
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
|
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
|
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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@ -56,7 +56,7 @@
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#define SYS_LIGHTWEIGHT_PROT 0
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#endif
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/**
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/**
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* NO_SYS==1: Provides VERY minimal functionality. Otherwise,
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* use lwIP facilities.
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*/
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@ -179,8 +179,8 @@
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/**
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* MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h
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* that defines additional pools beyond the "standard" ones required
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* by lwIP. If you set this to 1, you must have lwippools.h in your
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* inlude path somewhere.
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* by lwIP. If you set this to 1, you must have lwippools.h in your
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* inlude path somewhere.
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*/
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#ifndef MEMP_USE_CUSTOM_POOLS
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#define MEMP_USE_CUSTOM_POOLS 0
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@ -255,6 +255,14 @@
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#define MEMP_NUM_TCP_PCB_LISTEN 2
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#endif
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/**
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* MEMP_NUM_TCP_PCB_TIME_WAIT: the number of TCP pcbs in TIME_WAIT state.
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* (requires the LWIP_TCP option, 0 = disabled)
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*/
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#ifndef MEMP_NUM_TCP_PCB_TIME_WAIT
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#define MEMP_NUM_TCP_PCB_TIME_WAIT 5
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#endif
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/**
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* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.
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* (requires the LWIP_TCP option)
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@ -328,7 +336,7 @@
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/**
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* MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used
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* for callback/timeout API communication.
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* for callback/timeout API communication.
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* (only needed if you use tcpip.c)
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*/
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#ifndef MEMP_NUM_TCPIP_MSG_API
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@ -337,7 +345,7 @@
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/**
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* MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used
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* for incoming packets.
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* for incoming packets.
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* (only needed if you use tcpip.c)
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*/
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#ifndef MEMP_NUM_TCPIP_MSG_INPKT
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@ -402,7 +410,7 @@
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#endif
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/**
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* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
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* PBUF_POOL_SIZE: the number of buffers in the pbuf pool.
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*/
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#ifndef PBUF_POOL_SIZE
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#define PBUF_POOL_SIZE 10
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@ -714,7 +722,7 @@
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/**
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* SNMP_CONCURRENT_REQUESTS: Number of concurrent requests the module will
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* allow. At least one request buffer is required.
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* allow. At least one request buffer is required.
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*/
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#ifndef SNMP_CONCURRENT_REQUESTS
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#define SNMP_CONCURRENT_REQUESTS 0
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@ -729,7 +737,7 @@
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#endif
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/**
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* SNMP_PRIVATE_MIB:
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* SNMP_PRIVATE_MIB:
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*/
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#ifndef SNMP_PRIVATE_MIB
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#define SNMP_PRIVATE_MIB 0
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@ -775,7 +783,7 @@
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----------------------------------
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*/
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/**
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* LWIP_IGMP==1: Turn on IGMP module.
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* LWIP_IGMP==1: Turn on IGMP module.
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*/
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#ifndef LWIP_IGMP
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#define LWIP_IGMP 1
|
||||
@ -903,12 +911,12 @@
|
||||
#endif
|
||||
|
||||
/**
|
||||
* TCP_WND: The size of a TCP window. This must be at least
|
||||
* TCP_WND: The size of a TCP window. This must be at least
|
||||
* (2 * TCP_MSS) for things to work well
|
||||
*/
|
||||
#ifndef TCP_WND
|
||||
#define TCP_WND (*(volatile uint32*)0x600011F0)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
* TCP_MAXRTX: Maximum number of retransmissions of data segments.
|
||||
@ -973,7 +981,7 @@
|
||||
|
||||
|
||||
/**
|
||||
* TCP_SND_BUF: TCP sender buffer space (bytes).
|
||||
* TCP_SND_BUF: TCP sender buffer space (bytes).
|
||||
*/
|
||||
#ifndef TCP_SND_BUF
|
||||
#define TCP_SND_BUF 2 * TCP_MSS
|
||||
@ -1064,7 +1072,7 @@
|
||||
#ifndef LWIP_EVENT_API
|
||||
#define LWIP_EVENT_API 0
|
||||
#define LWIP_CALLBACK_API 1
|
||||
#else
|
||||
#else
|
||||
#define LWIP_EVENT_API 1
|
||||
#define LWIP_CALLBACK_API 0
|
||||
#endif
|
||||
@ -1762,28 +1770,28 @@
|
||||
#ifndef CHECKSUM_GEN_IP
|
||||
#define CHECKSUM_GEN_IP 1
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.
|
||||
*/
|
||||
#ifndef CHECKSUM_GEN_UDP
|
||||
#define CHECKSUM_GEN_UDP 1
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.
|
||||
*/
|
||||
#ifndef CHECKSUM_GEN_TCP
|
||||
#define CHECKSUM_GEN_TCP 1
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.
|
||||
*/
|
||||
#ifndef CHECKSUM_CHECK_IP
|
||||
#define CHECKSUM_CHECK_IP 1
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.
|
||||
*/
|
||||
|
||||
@ -28,5 +28,8 @@ all: $(LWIP_LIB)
|
||||
install: all
|
||||
cp -f $(LWIP_LIB) $(SDK_PATH)/lib/$(LWIP_LIB)
|
||||
|
||||
release: all
|
||||
cp -f $(LWIP_LIB) $(SDK_PATH)/lib/liblwip_gcc.a
|
||||
|
||||
clean:
|
||||
@rm -rf $(BUILD_PATH) $(LWIP_LIB)
|
||||
|
||||
@ -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 <adam@sics.se>
|
||||
*
|
||||
*/
|
||||
@ -61,17 +61,17 @@ static const char mem_debug_file[] ICACHE_RODATA_ATTR = __FILE__;
|
||||
|
||||
#if TCP_DEBUG
|
||||
const char tcp_state_str_rodata[][12] ICACHE_RODATA_ATTR = {
|
||||
"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"
|
||||
};
|
||||
|
||||
char tcp_state_str[12];
|
||||
@ -105,7 +105,7 @@ struct tcp_pcb ** const tcp_pcb_lists[] ICACHE_RODATA_ATTR = {&tcp_listen_pcbs.p
|
||||
/** Only used for temporary storage. */
|
||||
struct tcp_pcb *tcp_tmp_pcb;
|
||||
|
||||
/** 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 u16_t tcp_new_port(void);//<2F><><EFBFBD><EFBFBD>µ<EFBFBD>tcp<63><70><EFBFBD>ض˿<D8B6>
|
||||
|
||||
@ -166,7 +166,9 @@ tcp_close_shutdown(struct tcp_pcb *pcb, u8_t rst_on_unacked_data)
|
||||
TCP_RMV(&tcp_active_pcbs, pcb);
|
||||
pcb->state = TIME_WAIT;
|
||||
TCP_REG(&tcp_tw_pcbs, pcb);
|
||||
|
||||
#if MEMP_NUM_TCP_PCB_TIME_WAIT
|
||||
TCP_TW_LIMIT(MEMP_NUM_TCP_PCB_TIME_WAIT);
|
||||
#endif
|
||||
return ERR_OK;
|
||||
}
|
||||
}
|
||||
@ -177,24 +179,24 @@ 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. */
|
||||
/*<2A><>CLOSED״̬<D7B4>¹ر<C2B9>һ<EFBFBD><D2BB>pcb<63>ƺ<EFBFBD><C6BA>Ǵ<EFBFBD><C7B4><EFBFBD>ģ<EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD>һ<EFBFBD>û<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>,<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ҪһЩ<EFBFBD>취<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>رյ<EFBFBD>pcb<EFBFBD><EFBFBD>tcp_close(),(<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>)<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>CLOSE״̬<EFBFBD>Ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD>ͷŵ<EFBFBD>pcb<EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>,<EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD>κ<EFBFBD>ʣ<EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD>Ǽٵ<EFBFBD>
|
||||
*/
|
||||
err = ERR_OK;//<2F>趨<EFBFBD><E8B6A8><EFBFBD><EFBFBD>ֵ
|
||||
/*<2A><>CLOSED״̬<D7B4>¹ر<C2B9>һ<EFBFBD><D2BB>pcb<63>ƺ<EFBFBD><C6BA>Ǵ<EFBFBD><C7B4><EFBFBD>ģ<EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD>һ<EFBFBD>û<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>,<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ҪһЩ<EFBFBD>취<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>رյ<EFBFBD>pcb<EFBFBD><EFBFBD>tcp_close(),(<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>)<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>CLOSE״̬<EFBFBD>Ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><EFBFBD>ͷŵ<EFBFBD>pcb<EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>,<EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD>κ<EFBFBD>ʣ<EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD>Ǽٵ<EFBFBD>
|
||||
*/
|
||||
err = ERR_OK;//<2F>趨<EFBFBD><E8B6A8><EFBFBD><EFBFBD>ֵ
|
||||
if (pcb->local_port != 0) {
|
||||
TCP_RMV(&tcp_bound_pcbs, pcb);
|
||||
TCP_RMV(&tcp_bound_pcbs, pcb);
|
||||
}
|
||||
memp_free(MEMP_TCP_PCB, pcb);//<2F><>MEMP_TCP_PCB<43>ڴ<EFBFBD><DAB4><EFBFBD>趨<EFBFBD>ͷŵ<CDB7><C5B5><EFBFBD>pcb<63><62>Ӧ<EFBFBD>ĵ<EFBFBD>Ԫֵ,<2C>ͷ<EFBFBD><CDB7>ڴ<EFBFBD>
|
||||
pcb = NULL;
|
||||
break;
|
||||
case LISTEN:
|
||||
err = ERR_OK;
|
||||
tcp_pcb_remove(&tcp_listen_pcbs.pcbs, pcb);//<2F>Ӽ<EFBFBD><D3BC><EFBFBD><EFBFBD>PCB<43>б<EFBFBD><D0B1><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD>Ӧ<EFBFBD><D3A6>pcb
|
||||
tcp_pcb_remove(&tcp_listen_pcbs.pcbs, pcb);//<2F>Ӽ<EFBFBD><D3BC><EFBFBD><EFBFBD>PCB<43>б<EFBFBD><D0B1><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD>Ӧ<EFBFBD><D3A6>pcb
|
||||
memp_free(MEMP_TCP_PCB_LISTEN, pcb);//<2F><>MEMP_TCP_PCB_LISTEN<45>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>趨<EFBFBD>ͷŵ<CDB7>pcb<63><62>Ԫֵ ,<2C>ͷ<EFBFBD><CDB7>ڴ<EFBFBD>
|
||||
pcb = NULL;
|
||||
break;
|
||||
@ -261,14 +263,14 @@ tcp_close_shutdown(struct tcp_pcb *pcb, u8_t rst_on_unacked_data)
|
||||
* @return ERR_OK if connection has been closed
|
||||
* another err_t if closing failed and pcb is not freed
|
||||
*/
|
||||
/*
|
||||
*ͨ<EFBFBD><EFBFBD>PCB<EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>pcbӦ<EFBFBD>ñ<EFBFBD><EFBFBD>ͷŵģ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԶҲ<EFBFBD><EFBFBD><EFBFBD>ᱻʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳû<EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>pcbӦ<EFBFBD>ñ<EFBFBD><EFBFBD>ͷŵ<EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>SYN<EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD>е<EFBFBD>״̬)
|
||||
*<EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹرյ<EFBFBD>״̬
|
||||
*pcb<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>tcp_slowtmr()<EFBFBD>ͷ<EFBFBD>,<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>
|
||||
*/
|
||||
/*
|
||||
*ͨ<EFBFBD><EFBFBD>PCB<EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>pcbӦ<EFBFBD>ñ<EFBFBD><EFBFBD>ͷŵģ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԶҲ<EFBFBD><EFBFBD><EFBFBD>ᱻʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳû<EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>pcbӦ<EFBFBD>ñ<EFBFBD><EFBFBD>ͷŵ<EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD><EFBFBD><EFBFBD>SYN<EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD>е<EFBFBD>״̬)
|
||||
*<EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹرյ<EFBFBD>״̬
|
||||
*pcb<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>tcp_slowtmr()<EFBFBD>ͷ<EFBFBD>,<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>
|
||||
*/
|
||||
err_t
|
||||
tcp_close(struct tcp_pcb *pcb)
|
||||
{
|
||||
@ -341,7 +343,7 @@ tcp_abandon(struct tcp_pcb *pcb, int reset)
|
||||
u32_t seqno, ackno;
|
||||
u16_t remote_port, local_port;
|
||||
ip_addr_t remote_ip, local_ip;
|
||||
#if LWIP_CALLBACK_API
|
||||
#if LWIP_CALLBACK_API
|
||||
tcp_err_fn errf;
|
||||
#endif /* LWIP_CALLBACK_API */
|
||||
void *errf_arg;
|
||||
@ -373,7 +375,7 @@ 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);
|
||||
}
|
||||
@ -555,7 +557,7 @@ 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
|
||||
@ -636,7 +638,7 @@ tcp_new_port(void)
|
||||
#define TCP_LOCAL_PORT_RANGE_END 0x7fff
|
||||
#endif
|
||||
static u16_t port = TCP_LOCAL_PORT_RANGE_START;
|
||||
|
||||
|
||||
again:
|
||||
// if (++port >= TCP_LOCAL_PORT_RANGE_END) {
|
||||
// port = TCP_LOCAL_PORT_RANGE_START;
|
||||
@ -646,7 +648,7 @@ tcp_new_port(void)
|
||||
if (port < TCP_LOCAL_PORT_RANGE_START)
|
||||
port += TCP_LOCAL_PORT_RANGE_START;
|
||||
/* Check all PCB lists. */
|
||||
for (i = 0; i < NUM_TCP_PCB_LISTS; i++) {
|
||||
for (i = 0; i < NUM_TCP_PCB_LISTS; i++) {
|
||||
for(pcb = *tcp_pcb_lists[i]; pcb != NULL; pcb = pcb->next) {
|
||||
if (pcb->local_port == port) {
|
||||
goto again;
|
||||
@ -743,7 +745,7 @@ 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;//ע<><D7A2>connected<65>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>
|
||||
#else /* LWIP_CALLBACK_API */
|
||||
#else /* LWIP_CALLBACK_API */
|
||||
LWIP_UNUSED_ARG(connected);
|
||||
#endif /* LWIP_CALLBACK_API */
|
||||
|
||||
@ -849,7 +851,7 @@ tcp_slowtmr(void)
|
||||
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);
|
||||
@ -873,7 +875,7 @@ tcp_slowtmr(void)
|
||||
if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
(pcb->keep_idle + (pcb->keep_cnt*pcb->keep_intvl))
|
||||
/ TCP_SLOW_INTERVAL)
|
||||
#else
|
||||
#else
|
||||
if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
(pcb->keep_idle + TCP_MAXIDLE) / TCP_SLOW_INTERVAL)
|
||||
#endif /* LWIP_TCP_KEEPALIVE */
|
||||
@ -881,17 +883,17 @@ tcp_slowtmr(void)
|
||||
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;
|
||||
}
|
||||
#if LWIP_TCP_KEEPALIVE
|
||||
else if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
else if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
(pcb->keep_idle + pcb->keep_cnt_sent * pcb->keep_intvl)
|
||||
/ TCP_SLOW_INTERVAL)
|
||||
#else
|
||||
else if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
(pcb->keep_idle + pcb->keep_cnt_sent * TCP_KEEPINTVL_DEFAULT)
|
||||
else if((u32_t)(tcp_ticks - pcb->tmr) >
|
||||
(pcb->keep_idle + pcb->keep_cnt_sent * TCP_KEEPINTVL_DEFAULT)
|
||||
/ TCP_SLOW_INTERVAL)
|
||||
#endif /* LWIP_TCP_KEEPALIVE */
|
||||
{
|
||||
@ -942,12 +944,12 @@ tcp_slowtmr(void)
|
||||
LWIP_ASSERT("tcp_slowtmr: first pcb == tcp_active_pcbs", tcp_active_pcbs == pcb);
|
||||
tcp_active_pcbs = pcb->next;
|
||||
}
|
||||
|
||||
|
||||
if (pcb_reset) {
|
||||
tcp_rst(pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip,
|
||||
pcb->local_port, pcb->remote_port);
|
||||
}
|
||||
|
||||
|
||||
TCP_EVENT_ERR(pcb->errf, pcb->callback_arg, ERR_ABRT);
|
||||
pcb2 = pcb;
|
||||
pcb = pcb->next;
|
||||
@ -971,7 +973,7 @@ tcp_slowtmr(void)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* Steps through all of the TIME-WAIT PCBs. */
|
||||
prev = NULL;
|
||||
pcb = tcp_tw_pcbs;
|
||||
@ -983,7 +985,7 @@ tcp_slowtmr(void)
|
||||
if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) {
|
||||
++pcb_remove;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/* If the PCB should be removed, do it. */
|
||||
@ -1101,7 +1103,7 @@ 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)
|
||||
{
|
||||
@ -1111,7 +1113,7 @@ 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;
|
||||
}
|
||||
@ -1150,7 +1152,7 @@ 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;
|
||||
@ -1207,7 +1209,7 @@ tcp_alloc(u8_t prio)
|
||||
{
|
||||
struct tcp_pcb *pcb;
|
||||
u32_t iss;
|
||||
|
||||
|
||||
pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB);//<2F><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>ؿռ<D8BF>
|
||||
if (pcb == NULL) {
|
||||
//os_printf("tcp_pcb memory is fail\n");
|
||||
@ -1253,18 +1255,18 @@ tcp_alloc(u8_t prio)
|
||||
pcb->snd_wl2 = iss; //<2F><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CDB4>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD>ֶ<EFBFBD>
|
||||
pcb->snd_nxt = iss;
|
||||
pcb->lastack = iss;
|
||||
pcb->snd_lbb = iss;
|
||||
pcb->snd_lbb = iss;
|
||||
pcb->tmr = tcp_ticks; //<2F><>¼<EFBFBD><C2BC><EFBFBD>ƿ鴴<C6BF><E9B4B4>ϵͳʱ<CDB3><CAB1>
|
||||
|
||||
pcb->polltmr = 0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
#if LWIP_CALLBACK_API
|
||||
pcb->recv = tcp_recv_null; //ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>Ĭ<EFBFBD><C4AC><EFBFBD>ϲ㺯<CFB2><E3BAAF>
|
||||
#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;
|
||||
@ -1300,10 +1302,10 @@ tcp_new(void)
|
||||
* <EFBFBD><EFBFBD><EFBFBD>ֶν<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
* @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)
|
||||
{
|
||||
{
|
||||
pcb->callback_arg = arg;
|
||||
}
|
||||
#if LWIP_CALLBACK_API
|
||||
@ -1314,7 +1316,7 @@ tcp_arg(struct tcp_pcb *pcb, void *arg)
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƿ<EFBFBD><EFBFBD>recv<EFBFBD>ֶ<EFBFBD>ע<EFBFBD>ắ<EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ص<EFBFBD>
|
||||
* @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)
|
||||
{
|
||||
@ -1327,7 +1329,7 @@ tcp_recv(struct tcp_pcb *pcb, tcp_recv_fn recv)
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƿ<EFBFBD>send <EFBFBD>ֶ<EFBFBD>ע<EFBFBD>ắ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷ<EFBFBD><EFBFBD>ͳɹ<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>
|
||||
* @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)
|
||||
{
|
||||
@ -1341,7 +1343,7 @@ 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)
|
||||
{
|
||||
@ -1355,7 +1357,7 @@ 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)
|
||||
{
|
||||
@ -1369,15 +1371,15 @@ 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.
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƿ<EFBFBD><EFBFBD>POLL<EFBFBD>ֶ<EFBFBD>ע<EFBFBD>ắ<EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*/
|
||||
*/
|
||||
void
|
||||
tcp_poll(struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval)
|
||||
{
|
||||
#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;
|
||||
}
|
||||
|
||||
@ -1461,7 +1463,7 @@ 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 &&
|
||||
@ -1492,7 +1494,7 @@ u32_t
|
||||
tcp_next_iss(void)
|
||||
{
|
||||
static u32_t iss = 6510;
|
||||
|
||||
|
||||
again:
|
||||
iss += tcp_ticks; /* XXX */
|
||||
if (iss == 0)
|
||||
@ -1632,21 +1634,21 @@ 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);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
*
|
||||
* These functions are generally called in the order (ip_input() ->)
|
||||
* tcp_input() -> * tcp_process() -> tcp_receive() (-> application).
|
||||
*
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -92,12 +92,12 @@ static err_t tcp_timewait_input(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
|
||||
* @param p received TCP segment to process (p->payload pointing to the IP header)
|
||||
* @param inp network interface on which this segment was received
|
||||
*/
|
||||
/**
|
||||
* TCP<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>봦<EFBFBD>?<EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD>TCPͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
* @<EFBFBD><EFBFBD><EFBFBD><EFBFBD>p:<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD>TCP<EFBFBD><EFBFBD>(ָ<EFBFBD><EFBFBD>IPͷ<EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>)
|
||||
* @<EFBFBD><EFBFBD><EFBFBD><EFBFBD>inp:<EFBFBD><EFBFBD><EFBFBD>նε<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD>
|
||||
*/
|
||||
/**
|
||||
* TCP<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>봦<EFBFBD>?<EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD>TCPͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IP<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
* @<EFBFBD><EFBFBD><EFBFBD><EFBFBD>p:<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD>TCP<EFBFBD><EFBFBD>(ָ<EFBFBD><EFBFBD>IPͷ<EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>)
|
||||
* @<EFBFBD><EFBFBD><EFBFBD><EFBFBD>inp:<EFBFBD><EFBFBD><EFBFBD>նε<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD>
|
||||
*/
|
||||
void
|
||||
tcp_input(struct pbuf *p, struct netif *inp)
|
||||
{
|
||||
@ -112,15 +112,15 @@ tcp_input(struct pbuf *p, struct netif *inp)
|
||||
|
||||
PERF_START;
|
||||
|
||||
TCP_STATS_INC(tcp.recv); //״̬<D7B4><CCAC>1
|
||||
TCP_STATS_INC(tcp.recv); //״̬<D7B4><CCAC>1
|
||||
snmp_inc_tcpinsegs(); //tcp<63><70><EFBFBD><EFBFBD>μ<EFBFBD>1
|
||||
|
||||
iphdr = (struct ip_hdr *)p->payload;// pointer to the actual data in the buffer
|
||||
/*
|
||||
*<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(IHL)<EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>IPЭ<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD>ָ<EFBFBD><EFBFBD>IPv4Э<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٸ<EFBFBD>32λ<EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IPv4<EFBFBD>İ<EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ܰ<EFBFBD>ɱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ѡ <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>IPv4<EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD>ֵ<EFBFBD>ƫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*IPv4<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>20<EFBFBD><EFBFBD><EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IHL<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶε<EFBFBD><EFBFBD><EFBFBD>Сֵ<EFBFBD><EFBFBD>ʮ<EFBFBD><EFBFBD><EFBFBD>Ʊ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>5 (5x4 = 20<EFBFBD>ֽ<EFBFBD>)<EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>İ<EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD>ֽڵı<EFBFBD><EFBFBD><EFBFBD>
|
||||
/*
|
||||
*<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(IHL)<EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>IPЭ<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ij<EFBFBD><EFBFBD>ȣ<EFBFBD>ָ<EFBFBD><EFBFBD>IPv4Э<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٸ<EFBFBD>32λ<EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IPv4<EFBFBD>İ<EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ܰ<EFBFBD>ɱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ѡ <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>IPv4<EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD>ֵ<EFBFBD>ƫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
*IPv4<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>20<EFBFBD><EFBFBD><EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IHL<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶε<EFBFBD><EFBFBD><EFBFBD>Сֵ<EFBFBD><EFBFBD>ʮ<EFBFBD><EFBFBD><EFBFBD>Ʊ<EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>5 (5x4 = 20<EFBFBD>ֽ<EFBFBD>)<EFBFBD><EFBFBD>
|
||||
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>İ<EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4<EFBFBD>ֽڵı<EFBFBD><EFBFBD><EFBFBD>
|
||||
*/
|
||||
tcphdr = (struct tcp_hdr *)((u8_t *)p->payload + IPH_HL(iphdr) * 4);
|
||||
|
||||
@ -135,7 +135,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
|
||||
TCP_STATS_INC(tcp.lenerr);//<2F><><EFBFBD>ȼ<F3B3A4B6><C8BC><EFBFBD>
|
||||
TCP_STATS_INC(tcp.drop);//<2F><>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD>
|
||||
snmp_inc_tcpinerrs();
|
||||
pbuf_free(p);//<2F>ͷ<EFBFBD>buffer
|
||||
pbuf_free(p);//<2F>ͷ<EFBFBD>buffer
|
||||
return;
|
||||
}
|
||||
|
||||
@ -183,23 +183,23 @@ tcp_input(struct pbuf *p, struct netif *inp)
|
||||
/* Convert fields in TCP header to host byte order. */
|
||||
tcphdr->src = ntohs(tcphdr->src); //ת<><D7AA>Դ<EFBFBD><D4B4>ַ
|
||||
tcphdr->dest = ntohs(tcphdr->dest); //ת<><D7AA>Ŀ<EFBFBD>ĵ<EFBFBD>ַ
|
||||
seqno = tcphdr->seqno = ntohl(tcphdr->seqno); //ת<><D7AA><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD>
|
||||
seqno = tcphdr->seqno = ntohl(tcphdr->seqno); //ת<><D7AA><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD>
|
||||
ackno = tcphdr->ackno = ntohl(tcphdr->ackno); //ת<><D7AA>Ӧ<EFBFBD><D3A6><EFBFBD>
|
||||
tcphdr->wnd = ntohs(tcphdr->wnd); //ת<><D7AA>tcp<63><70><EFBFBD><EFBFBD>
|
||||
|
||||
flags = TCPH_FLAGS(tcphdr);//<2F>õ<EFBFBD>tcp header<65>ı<EFBFBD>־
|
||||
/*
|
||||
*<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>3λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD>
|
||||
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>1λ
|
||||
* <EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>λ<EFBFBD><EFBFBD>1λ<EFBFBD><EFBFBD>ȡֵ<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶܷΣ<EFBFBD>
|
||||
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>1λ<EFBFBD><EFBFBD>ȡֵ<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>а<EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><EFBFBD>İ<EFBFBD>
|
||||
*/
|
||||
flags = TCPH_FLAGS(tcphdr);//<2F>õ<EFBFBD>tcp header<65>ı<EFBFBD>־
|
||||
/*
|
||||
*<EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>3λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD>
|
||||
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>1λ
|
||||
* <EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>λ<EFBFBD><EFBFBD>1λ<EFBFBD><EFBFBD>ȡֵ<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD>ֶΣ<EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶܷΣ<EFBFBD>
|
||||
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>1λ<EFBFBD><EFBFBD>ȡֵ<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>а<EFBFBD>1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><EFBFBD>İ<EFBFBD>
|
||||
*/
|
||||
tcplen = p->tot_len + ((flags & (TCP_FIN | TCP_SYN)) ? 1 : 0);//TCP_FIN <20><> TCP_SYN <20><>λ<EFBFBD><CEBB>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0
|
||||
|
||||
/* Demultiplex an incoming segment. First, we check if it is destined
|
||||
for an active connection. <EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>һ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
|
||||
////////////////////////////////////////////////////////////////////////////////////////
|
||||
prev = NULL;
|
||||
prev = NULL;
|
||||
for(pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) {//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>
|
||||
LWIP_ASSERT("tcp_input: active pcb->state != CLOSED", pcb->state != CLOSED);
|
||||
LWIP_ASSERT("tcp_input: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT);
|
||||
@ -286,9 +286,9 @@ 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);//<2F><><EFBFBD><EFBFBD>tcp<63><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>
|
||||
tcp_listen_input(lpcb);//<2F><><EFBFBD><EFBFBD>tcp<63><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>
|
||||
pbuf_free(p);
|
||||
return;
|
||||
}
|
||||
@ -385,7 +385,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
|
||||
//PSH<53><48>־ PSH <20><><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
|
||||
//<2F><>PSH=1ʱ<31><CAB1>Ҫ<EFBFBD><D2AA><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7>÷ֶΣ<D6B6>
|
||||
//<2F><><EFBFBD><EFBFBD>շ<EFBFBD><D5B7><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>Ӧ<EFBFBD>ò㣬<C3B2><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>?
|
||||
|
||||
|
||||
if (flags & TCP_PSH) {
|
||||
recv_data->flags |= PBUF_FLAG_PUSH;//<2F><><EFBFBD>bufferӦ<72><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
}
|
||||
@ -411,7 +411,7 @@ tcp_input(struct pbuf *p, struct netif *inp)
|
||||
if (pcb->rcv_wnd != TCP_WND) {
|
||||
pcb->rcv_wnd++;
|
||||
}
|
||||
|
||||
|
||||
TCP_EVENT_CLOSED(pcb, err);
|
||||
if (err == ERR_ABRT) {
|
||||
goto aborted;
|
||||
@ -595,21 +595,21 @@ tcp_listen_input(struct tcp_pcb_listen *pcb)
|
||||
static err_t
|
||||
tcp_timewait_input(struct tcp_pcb *pcb)
|
||||
{
|
||||
|
||||
|
||||
if (flags & TCP_RST) { //RST<53><54>λ<EFBFBD><CEBB>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD>
|
||||
return ERR_OK;
|
||||
}
|
||||
|
||||
|
||||
if (flags & TCP_SYN) { //<2F><>SYN<59><4E><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>ڽ<EFBFBD><DABD>մ<EFBFBD><D5B4><EFBFBD><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD>RST<53><54><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt+pcb->rcv_wnd)) {
|
||||
|
||||
|
||||
tcp_rst(ackno, seqno + tcplen, ip_current_dest_addr(), ip_current_src_addr(),
|
||||
tcphdr->dest, tcphdr->src);
|
||||
return ERR_OK;
|
||||
}
|
||||
} else if (flags & TCP_FIN) { //<2F><><EFBFBD>İ<EFBFBD>FIN<49><4E><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
|
||||
|
||||
|
||||
pcb->tmr = tcp_ticks; //<2F><>λ<EFBFBD>ȴ<EFBFBD>2MSLʱ<4C>䣬<EFBFBD><E4A3AC><EFBFBD>ƿ<EFBFBD><C6BF><EFBFBD><EFBFBD>µȴ<C2B5>2MSL
|
||||
}
|
||||
|
||||
@ -648,7 +648,7 @@ 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;
|
||||
}
|
||||
@ -669,12 +669,12 @@ 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;
|
||||
@ -808,6 +808,9 @@ tcp_process(struct tcp_pcb *pcb)
|
||||
TCP_RMV(&tcp_active_pcbs, pcb);
|
||||
pcb->state = TIME_WAIT;
|
||||
TCP_REG(&tcp_tw_pcbs, pcb);
|
||||
#if MEMP_NUM_TCP_PCB_TIME_WAIT
|
||||
TCP_TW_LIMIT(MEMP_NUM_TCP_PCB_TIME_WAIT);
|
||||
#endif
|
||||
} else {
|
||||
tcp_ack_now(pcb);
|
||||
pcb->state = CLOSING;
|
||||
@ -825,6 +828,9 @@ tcp_process(struct tcp_pcb *pcb)
|
||||
TCP_RMV(&tcp_active_pcbs, pcb);
|
||||
pcb->state = TIME_WAIT;
|
||||
TCP_REG(&tcp_tw_pcbs, pcb);
|
||||
#if MEMP_NUM_TCP_PCB_TIME_WAIT
|
||||
TCP_TW_LIMIT(MEMP_NUM_TCP_PCB_TIME_WAIT);
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
case CLOSING:
|
||||
@ -835,6 +841,9 @@ tcp_process(struct tcp_pcb *pcb)
|
||||
TCP_RMV(&tcp_active_pcbs, pcb);
|
||||
pcb->state = TIME_WAIT;
|
||||
TCP_REG(&tcp_tw_pcbs, pcb);
|
||||
#if MEMP_NUM_TCP_PCB_TIME_WAIT
|
||||
TCP_TW_LIMIT(MEMP_NUM_TCP_PCB_TIME_WAIT);
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
case LAST_ACK:
|
||||
@ -939,7 +948,7 @@ 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));
|
||||
@ -954,12 +963,12 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
* 3) the advertised window hasn't changed <EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>и<EFBFBD><EFBFBD><EFBFBD>
|
||||
* 4) There is outstanding unacknowledged data (retransmission timer running)<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵȴ<EFBFBD>ȷ<EFBFBD><EFBFBD>
|
||||
* 5) The ACK is == biggest ACK sequence number so far seen (snd_una) ackno = lastack
|
||||
*
|
||||
* 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)
|
||||
*
|
||||
@ -1002,10 +1011,10 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
}
|
||||
} else if (TCP_SEQ_BETWEEN(ackno, pcb->lastack+1, pcb->snd_nxt)){//ackno<6E><6F>lastack+1<><31>snd_nxt֮<74>䣬<EFBFBD>жϷ<D0B6><CFB7>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
/* We come here when the ACK acknowledges new data. */
|
||||
|
||||
|
||||
if (pcb->flags & TF_INFR) {
|
||||
pcb->flags &= ~TF_INFR;// Reset the "IN Fast Retransmit" flag,since we are no longer in fast retransmit
|
||||
pcb->cwnd = pcb->ssthresh;//Reset the congestion window to the "slow start threshold".
|
||||
pcb->cwnd = pcb->ssthresh;//Reset the congestion window to the "slow start threshold".
|
||||
}
|
||||
|
||||
/* Reset the number of retransmissions. */
|
||||
@ -1047,7 +1056,7 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
ntohl(pcb->unacked->tcphdr->seqno) + TCP_TCPLEN(pcb->unacked): 0));
|
||||
|
||||
/* Remove segment from the unacknowledged list if the incoming
|
||||
ACK acknowlegdes them.
|
||||
ACK acknowlegdes them.
|
||||
*<EFBFBD>ͷ<EFBFBD>unacked<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD>ȷ<EFBFBD>ϵı<EFBFBD><EFBFBD>ĶΣ<EFBFBD>
|
||||
*ֱ<EFBFBD><EFBFBD>unacked<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ֹͣ*/
|
||||
while (pcb->unacked != NULL &&
|
||||
@ -1068,7 +1077,7 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
pcb->acked--;
|
||||
}
|
||||
|
||||
pcb->snd_queuelen -= pbuf_clen(next->p);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pbufs<66><73><EFBFBD><EFBFBD>
|
||||
pcb->snd_queuelen -= pbuf_clen(next->p);//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>pbufs<66><73><EFBFBD><EFBFBD>
|
||||
tcp_seg_free(next);//<2F>ͷ<EFBFBD>tcp<63><70>
|
||||
|
||||
LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"U16_F" (after freeing unacked)\n", (u16_t)pcb->snd_queuelen));
|
||||
@ -1099,13 +1108,13 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
in fact have been sent once. */
|
||||
/** unsent<6E><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7>ܱ<EFBFBD>acknoȷ<6F>ϵı<CFB5><C4B1>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>**/
|
||||
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) +
|
||||
TCP_TCPLEN(pcb->unsent)));
|
||||
|
||||
next = pcb->unsent;//pcbδ<62><CEB4><EFBFBD>ͱ<EFBFBD>־
|
||||
next = pcb->unsent;//pcbδ<62><CEB4><EFBFBD>ͱ<EFBFBD>־
|
||||
pcb->unsent = pcb->unsent->next;//δ<><CEB4><EFBFBD>͵<EFBFBD><CDB5><EFBFBD>һ<EFBFBD><D2BB>
|
||||
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)));
|
||||
@ -1252,7 +1261,7 @@ 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)){//rcv_nxt < seqno < rcv_nxt + rcv_wnd - 1,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><DABD>շ<EFBFBD>Χ<EFBFBD><CEA7>
|
||||
if (pcb->rcv_nxt == seqno) {
|
||||
/* The incoming segment is the next in sequence. We check if
|
||||
@ -1261,12 +1270,12 @@ tcp_receive(struct tcp_pcb *pcb)
|
||||
tcplen = TCP_TCPLEN(&inseg);//<2F><><EFBFBD>㱨<EFBFBD>Ķγ<C4B6><CEB3><EFBFBD>
|
||||
|
||||
if (tcplen > pcb->rcv_wnd) {//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><D5B4>ڴ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2><EFBFBD>ض<EFBFBD>
|
||||
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);
|
||||
}
|
||||
@ -1286,7 +1295,7 @@ 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
|
||||
@ -1394,7 +1403,7 @@ 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;
|
||||
@ -1507,12 +1516,12 @@ 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);
|
||||
}
|
||||
@ -1549,7 +1558,7 @@ 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!
|
||||
@ -1606,7 +1615,7 @@ 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);
|
||||
|
||||
@ -144,7 +144,7 @@ udp_input(struct pbuf *p, struct netif *inp)
|
||||
/* all packets for DHCP_CLIENT_PORT not coming from DHCP_SERVER_PORT are dropped! */
|
||||
if (src == DHCP_SERVER_PORT) {
|
||||
if ((inp->dhcp != NULL) && (inp->dhcp->pcb != NULL)) {
|
||||
/* accept the packe if
|
||||
/* accept the packe if
|
||||
(- broadcast or directed to us) -> DHCP is link-layer-addressed, local ip is always ANY!
|
||||
- inp->dhcp->pcb->remote == ANY or iphdr->src */
|
||||
if ((ip_addr_isany(&inp->dhcp->pcb->remote_ip) ||
|
||||
@ -196,7 +196,7 @@ udp_input(struct pbuf *p, struct netif *inp)
|
||||
(broadcast))) {
|
||||
#endif /* IP_SOF_BROADCAST_RECV */
|
||||
local_match = 1;
|
||||
if ((uncon_pcb == NULL) &&
|
||||
if ((uncon_pcb == NULL) &&
|
||||
((pcb->flags & UDP_FLAGS_CONNECTED) == 0)) {
|
||||
/* the first unconnected matching PCB */
|
||||
uncon_pcb = pcb;
|
||||
@ -422,7 +422,7 @@ udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p,
|
||||
*
|
||||
* If the PCB already has a remote address association, it will
|
||||
* be restored after the data is sent.
|
||||
*
|
||||
*
|
||||
* @return lwIP error code (@see udp_send for possible error codes)
|
||||
*
|
||||
* @see udp_disconnect() udp_send()
|
||||
@ -504,6 +504,7 @@ udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *dst_ip,
|
||||
ip_addr_t *src_ip;
|
||||
err_t err;
|
||||
struct pbuf *q; /* q will be sent down the stack */
|
||||
u8_t ttl;
|
||||
|
||||
#if IP_SOF_BROADCAST
|
||||
/* broadcast filter? */
|
||||
@ -553,11 +554,11 @@ udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *dst_ip,
|
||||
udphdr->src = htons(pcb->local_port);
|
||||
udphdr->dest = htons(dst_port);
|
||||
/* in UDP, 0 checksum means 'no checksum' */
|
||||
udphdr->chksum = 0x0000;
|
||||
udphdr->chksum = 0x0000;
|
||||
|
||||
/* Multicast Loop? */
|
||||
#if LWIP_IGMP
|
||||
if (ip_addr_ismulticast(dst_ip) && ((pcb->flags & UDP_FLAGS_MULTICAST_LOOP) != 0)) {
|
||||
if (((pcb->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) && ip_addr_ismulticast(dst_ip)) {
|
||||
q->flags |= PBUF_FLAG_MCASTLOOP;
|
||||
}
|
||||
#endif /* LWIP_IGMP */
|
||||
@ -665,13 +666,21 @@ udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, ip_addr_t *dst_ip,
|
||||
udphdr->chksum = udpchksum;
|
||||
}
|
||||
#endif /* CHECKSUM_GEN_UDP */
|
||||
|
||||
/* Determine TTL to use */
|
||||
#if LWIP_IGMP
|
||||
ttl = (ip_addr_ismulticast(dst_ip) ? pcb->mcast_ttl : pcb->ttl);
|
||||
#else /* LWIP_IGMP */
|
||||
ttl = pcb->ttl;
|
||||
#endif /* LWIP_IGMP */
|
||||
|
||||
LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP checksum 0x%04"X16_F"\n", udphdr->chksum));
|
||||
LWIP_DEBUGF(UDP_DEBUG, ("udp_send: ip_output_if (,,,,IP_PROTO_UDP,)\n"));
|
||||
/* output to IP */
|
||||
#if LWIP_NETIF_HWADDRHINT
|
||||
netif->addr_hint = &(pcb->addr_hint);
|
||||
#endif /* LWIP_NETIF_HWADDRHINT*/
|
||||
err = ip_output_if(q, src_ip, dst_ip, pcb->ttl, pcb->tos, IP_PROTO_UDP, netif);
|
||||
err = ip_output_if(q, src_ip, dst_ip, ttl, pcb->tos, IP_PROTO_UDP, netif);
|
||||
#if LWIP_NETIF_HWADDRHINT
|
||||
netif->addr_hint = NULL;
|
||||
#endif /* LWIP_NETIF_HWADDRHINT*/
|
||||
@ -950,6 +959,9 @@ udp_new(void)
|
||||
/* initialize PCB to all zeroes */
|
||||
os_memset(pcb, 0, sizeof(struct udp_pcb));
|
||||
pcb->ttl = UDP_TTL;
|
||||
#if LWIP_IGMP
|
||||
pcb->mcast_ttl = UDP_TTL;
|
||||
#endif
|
||||
}
|
||||
return pcb;
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user