在lwip官网找资料，上来发现最新的2.1.2版本有4个TCP bug要修改。。。

eric2013

https://savannah.nongnu.org/projects/lwip/

eric2013

我眼花了，是2.1.1和2.1.0用户要做的升级

(STABLE-2.1.2):

  ++ Bugfixes:

  2018-11-21: Jens Nielsen
  * netbiosns.c: fix expecting too large packet (bug #55069)

  2018-11-19: Dirk Ziegelmeier
  * smtp.c: fix compiling with strict C compatibility because of strnlen (bug #55034)

  2018-11-12: Simon Goldschmidt
  * tcp.c: fix overflow check in tcp_recved triggering invalid assertion (bug #55015)

  2018-11-12: Simon Goldschmidt
  * tcp.c: fix a bug in sending RST segments (sent from port 0)

morning_enr6U

硬汉大哥，保重身体哈！

小狐狸

是的，上面的发布说明中说2.1.0和2.1.1的用户强烈建议升级到2.1.2

现在2.1.2发布已经满1年的，应该没啥大的问题。。。但是去年我使用时发现2.1.2的tcp client偶尔掉线，没有找原因又用原来的2.0.3了

eric2013

小狐狸 发表于 2019-12-10 15:31
是的，上面的发布说明中说2.1.0和2.1.1的用户强烈建议升级到2.1.2

现在2.1.2发布已经满1年的，应该没啥 ...

2.0.3的话，那还是用最新的好些，新发布的2.0版本bug有点多，看他们的更新记录，更正了好些东西。

小狐狸

eric2013 发表于 2019-12-10 16:23
2.0.3的话，那还是用最新的好些，新发布的2.0版本bug有点多，看他们的更新记录，更正了好些东西。

嗯，上新版本好

王海靖

eric2013 发表于 2019-12-10 16:23
2.0.3的话，那还是用最新的好些，新发布的2.0版本bug有点多，看他们的更新记录，更正了好些东西。

用modbus tcp的时候，2.0.2没事。2.1.2多次拔插后内存就炸了。

eric2013

王海靖 发表于 2019-12-11 08:58
用modbus tcp的时候，2.0.2没事。2.1.2多次拔插后内存就炸了。

2.0.2 到 2.1.2修改了太多bug，还是2.1.2放心点

1. (STABLE-2.1.2):
   
2. 
   
3.   ++ Bugfixes:
   
4. 
   
5.   2018-11-21: Jens Nielsen
   
6.   * netbiosns.c: fix expecting too large packet (bug #55069)
   
7. 
   
8.   2018-11-19: Dirk Ziegelmeier
   
9.   * smtp.c: fix compiling with strict C compatibility because of strnlen (bug #55034)
   
10. 
    
11.   2018-11-12: Simon Goldschmidt
    
12.   * tcp.c: fix overflow check in tcp_recved triggering invalid assertion (bug #55015)
    
13. 
    
14.   2018-11-12: Simon Goldschmidt
    
15.   * tcp.c: fix a bug in sending RST segments (sent from port 0)
    
16. 
    
17. (STABLE-2.1.1):
    
18. 
    
19.   ++ Bugfixes:
    
20. 
    
21.   2018-11-01: Joan Lledó
    
22.   * sockets.c: fix bad assertion in lwip_poll_dec_sockets_used() (bug #54933)
    
23. 
    
24.   2018-11-01: Dirk Ziegelmeier
    
25.   * ip4.c: don't send 127.* to default netif (bug #54670)
    
26. 
    
27.   2018-10-23: David Girault
    
28.   * altcp_tls_mbedtls.c: fix use-after free (bug #54774)
    
29. 
    
30.   2018-10-23: Ognjen Bjelica, Dirk Ziegelmeier
    
31.   * snmp_scalar.c: Avoid NULL pointer dereference (bug #54886)
    
32. 
    
33.   2018-10-23: Simon Goldschmidt
    
34.   * Fix missing standard includes in multiple files
    
35. 
    
36.   2018-10-17: Ivan Warren
    
37.   * def.h: fix casting htonX and ntohX to u16_t (bug #54850)
    
38. 
    
39.   2018-10-12: Simon Goldschmidt
    
40.   * Revert "tcp_abandon: no need to buffer pcb->local_port" (fix that source port was 0 for RST
    
41.     called when aborting a connection)
    
42. 
    
43.   2018-10-11: Jonas Rabenstein
    
44.   * tcp.c: tcp_recved: check for overflow and warn about too big values (patch #9699)              
    
45. 
    
46.   2018-10-06: Joan Lledó
    
47.   * sockets.c: alloc_socket(): Check for LWIP_SOCKET_POLL when setting select-
    
48.     related variables (patch #9696)
    
49. 
    
50.   2018-10-04: Spencer
    
51.   * tcp.c: Update prev pointer when skipping entries in tcp_slowtmr (patch #9694)
    
52. 
    
53.   2018-09-27: Martine Lenders
    
54.   * lowpan6.c: Fix IEEE 802.15.4 address setting (bug #54749)
    
55. 
    
56. (STABLE-2.1.0):
    
57. 
    
58.   ++ New features:
    
59. 
    
60.   2018-06-17: Simon Goldschmidt
    
61.   * lwiperf: implemented iPerf client mode
    
62. 
    
63.   2018-04-23: Dirk Ziegelmeier
    
64.   * added cmake build files
    
65. 
    
66.   2018-03-04: Ray Abram
    
67.   * netbios responder: respond to '*' queries
    
68. 
    
69.   2018-02-23: Benjamin Aigner
    
70.   * 6lowpan: add 6lowpan-over-BLE netif (based on existing 6lowpan netif)
    
71. 
    
72.   2018-02-22: Simon Goldschmidt
    
73.   * ipv6: add support for stateless DHCPv6 (to get DNS servers in SLAAC nets)
    
74. 
    
75.   2018-02-16: Simon Goldschmidt
    
76.   * add raw API http(s) client (with proxy support)
    
77. 
    
78.   2018-02-01: Simon Goldschmidt
    
79.   * tcp: add hooks to implement additional socket options
    
80. 
    
81.   2018-02-01: Simon Goldschmidt
    
82.   * tcp: add hooks to implement tcp md5 signatures or similar (see contrib/addons for an example)
    
83. 
    
84.   2018-01-05: Simon Goldschmidt
    
85.   * Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr()
    
86.     These can be used to post preallocated messages from an ISR to the tcpip thread
    
87.     (e.g. when using FreeRTOS)
    
88. 
    
89.   2018-01-02: Dirk Ziegelmeier
    
90.   * task #14780: Add debug helper asserts to ensure threading/locking requirements are met
    
91. 
    
92.   2017-11-21: Simon Goldschmidt
    
93.   * task #14600: tcp_alloc(): kill TF_CLOSEPEND connections before other ESTABLISHED
    
94. 
    
95.   2017-11-21: Simon Goldschmidt
    
96.   * makefsdata: added option "-ssi:<filename>" to control SSI tag checking/insertion
    
97.     through a list of filenames, not by checking the file extension at runtime
    
98. 
    
99.   2017-11-20: Joel Cunningham
    
100.   * netconn: add LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE to use external DNS resolver (patch #9427)
     
101. 
     
102.   2017-11-14: Joel Cunningham
     
103.   * netifapi: Add thread safe ARP cache APIs (task #14724)
     
104. 
     
105.   2017-11-06: Axel Lin
     
106.   * TCP: kill existing connections with a LOWER priority than the one currently being opened.
     
107.     Previous implementations also kill existing connections of the SAME priority.
     
108. 
     
109.   2017-09-21: Kalle Olavi Niemitalo
     
110.   * sockets: add poll() implementation (patch #9450)
     
111. 
     
112.   2017-09-10: Joel Cunningham
     
113.   * sockets: add readv() implementation (task #14610)
     
114. 
     
115.   2017-08-04: Simon Goldschmidt
     
116.   * Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct
     
117.     dhcp - they are used in a call stack only (p_out and options_out_len as well)
     
118. 
     
119.   2017-08-04: Simon Goldschmidt
     
120.   * pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and
     
121.     pbuf_remove_header(size_t)
     
122. 
     
123.   2017-07-20: Douglas
     
124.   * sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the
     
125.     time waited rather they are now defined to return != SYS_ARCH_TIMEOUT
     
126.     on success.
     
127. 
     
128.   2017-07-03: Jakub Schmidtke
     
129.   * tcp: added support for sending TCP SACKs
     
130. 
     
131.   2017-06-20: Joel Cunningham
     
132.   * netconn/netdb: added core locking support to netconn_gethostbyname (task #14523)
     
133. 
     
134.   2017-04-25: Simon Goldschmidt
     
135.   * dhcp: added two hooks for adding and parsing user defined DHCP options
     
136. 
     
137.   2017-04-25: Joel Cunningham
     
138.   * sockets: added recvmsg for UDP (together with CMSG and IP_PKTINFO) (task #14247)
     
139. 
     
140.   2017-04-20: Joel Cunningham
     
141.   * tcp: added Appropriate Byte Counting support (task #14128)
     
142. 
     
143.   2017-04-11: Simon Goldschmidt
     
144.   * netconn/sockets: remove fatal error handling, fix asynchronous error handling,
     
145.     ensure data before RST can be received
     
146. 
     
147.   2017-03-30: Simon Goldschmidt
     
148.   * added "application layered TCP" connection API (altcp) for seamless integration
     
149.     of TLS or proxy connections
     
150. 
     
151.   2017-03-09: Simon Goldschmidt
     
152.   * sockets: add recvmsg for TCP
     
153. 
     
154.   2017-03-02: Joel Cunningham
     
155.   * netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write
     
156.     atomically in regards to TCP segmentation (patch #8882)
     
157. 
     
158.   2017-03-02: Simon Goldschmidt
     
159.   * netconn: added nonblocking accept/recv to netconn API (task #14396)
     
160. 
     
161.   2017-02-28: Simon Goldschmidt
     
162.   * Added LWIP_SINGLE_NETIF for small targets with only one netif
     
163. 
     
164.   2017-02-10: David van Moolenbroek
     
165.   * Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets)
     
166. 
     
167.   2017-02-04: David van Moolenbroek
     
168.   * IPv6 scopes support
     
169. 
     
170.   2017-01-20: Joel Cunningham
     
171.   * sockets: add interface name/index APIs (task #14314)
     
172.   
     
173.   2017-01-08: David van Moolenbroek
     
174.   * Extensions to RAW API (patch #9208)
     
175.     - Connected RAW PCBs
     
176.     - Add raw_sendto_if_src()
     
177.     - Support IP_HDRINCL socket option
     
178. 
     
179.   ++ Bugfixes:
     
180. 
     
181.   2018-06-19: Simon Goldschmidt
     
182.   * tcp: fix RTO timer not working if link is down
     
183. 
     
184.   2018-06-15: Sylvain Rochet
     
185.   * ppp: multiple smaller bugfixes
     
186. 
     
187.   2018-05-17: Simon Goldschmidt
     
188.   * etharp: arp table can now be bigger than 127 entries
     
189. 
     
190.   2018-04-25: Jens Nielsen
     
191.   * tftp server: correctly handle retransmissions
     
192. 
     
193.   2018-04-18: Simon Goldschmidt
     
194.   sockets: fix race conditions when closing full-duplex sockets
     
195. 
     
196.   2018-03-09: Simon Goldschmidt
     
197.   * 6lowpan: fix to work against contiki; added ZigBee encapsulation netif for tests
     
198. 
     
199.   2018-02-04: Simon Goldschmidt
     
200.   * sockets: fix inconsistencies on close (inconsistent error codes, double FIN)
     
201. 
     
202.   2018-01-05: Dirk Ziegelmeier
     
203.   * Fix bug #52748: the bug in timeouts.c by reimplementing timer logic to use
     
204.     absolute instead of relative timeout values
     
205. 
     
206.   2017-12-31: Dirk Ziegelmeier
     
207.   * Fix bug #52704: DHCP and bad OFFER: Stop timeout only if offer is accepted
     
208. 
     
209.   2017-11-08: Joel Cunningham
     
210.   * netif: ensure link and admin states are up in issue reports (bug #52353)
     
211. 
     
212.   2017-09-12: David Lockyer
     
213.   * select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990)
     
214. 
     
215.   2017-09-11: Simon Goldschmidt
     
216.   * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
     
217. 
     
218.   2017-08-11: Joel Cunningham
     
219.   * lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729)
     
220. 
     
221.   2017-08-08: Dirk Ziegelmeier
     
222.   * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest)
     
223.     to make parameter order consistent with other ip*_route*() functions
     
224.     Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order.
     
225. 
     
226.   2017-08-04: Joel Cunningham
     
227.   * tcp: re-work persist timer to fully close window (details in bug #50837)
     
228. 
     
229.   2017-07-26: Simon Goldschmidt
     
230.   * snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms)
     
231. 
     
232.   2017-07-20: Simon Goldschmidt
     
233.   * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix',
     
234.     'src/include/compat/stdc' etc.
     
235. 
     
236.   2017-05-09: Joel Cunningham
     
237.   * tcp: add zero-window probe timeout (bug #50837)
     
238. 
     
239.   2017-04-11: Simon Goldschmidt
     
240.   * sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT
     
241.     crit section) done for LWIP_TCPIP_CORE_LOCKING==1
     
242. 
     
243.   2017-02-24: Simon Goldschmidt
     
244.   * sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX)
     
245. 
     
246.   2017-02-24: Simon Goldschmidt
     
247.   * sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392)
     
248. 
     
249.   2017-01-11: David van Moolenbroek
     
250.   * Lots of IPv6 related fixes and improvements
     
251. 
     
252. (STABLE-2.0.3)
     
253. 
     
254.   ++ Bugfixes:
     
255. 
     
256.   2017-09-11: Simon Goldschmidt
     
257.   * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
     
258. 
     
259.   2017-08-02: Abroz Bizjak/Simon Goldschmidt
     
260.   * multiple fixes in IPv4 reassembly (leading to corrupted datagrams received)
     
261.   
     
262.   2017-03-30: Simon Goldschmidt
     
263.   * dhcp.c: return ERR_VAL instead of asserting on offset-out-of-pbuf
     
264. 
     
265.   2017-03-23: Dirk Ziegelmeier
     
266.   * dhcp.h: fix bug #50618 (dhcp_remove_struct() macro does not work)
     

复制代码