changelog.html 186 KB

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  31. <div id="projectname">lwIP
  32. &#160;<span id="projectnumber">2.1.2</span>
  33. </div>
  34. <div id="projectbrief">Lightweight IP stack</div>
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  82. <div class="headertitle">
  83. <div class="title">Changelog </div> </div>
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  85. <div class="contents">
  86. <div class="textblock"><h2>2.1.0 </h2>
  87. <ul>
  88. <li>Support TLS via new <a class="el" href="group__altcp__api.html">Application layered TCP Introduction</a> connection API (https, smtps, mqtt over TLS)</li>
  89. <li>Switch to cmake as the main build system (Makefile file lists are still maintained for now)</li>
  90. <li>Improve IPv6 support: support address scopes, support stateless DHCPv6, bugfixes</li>
  91. <li>Add debug helper asserts to ensure threading/locking requirements are met</li>
  92. <li>Add <a class="el" href="group__sys__mbox.html#gaf677a6e76adb7650a3020fdb3cb8429a">sys_mbox_trypost_fromisr()</a> and <a class="el" href="group__lwip__os.html#ga56a234f3d895791225c3c850bfadb666">tcpip_callbackmsg_trycallback_fromisr()</a> (for FreeRTOS, mainly)</li>
  93. <li>socket API: support <a class="el" href="group__socket.html#ga80ae38841b0e64e60618cd8bf857f617">poll()</a>, <a class="el" href="group__socket.html#gaad99bea090b1fe4743234fcee15a5d28">sendmsg()</a> and <a class="el" href="group__socket.html#gaecfc7d524105e52604829c66ced752b8">recvmsg()</a>; fix problems on close</li>
  94. </ul>
  95. <h2>Detailed Changelog </h2>
  96. <pre class="fragment">HISTORY
  97. * These are only the most important changes. For a full list, use git log:
  98. http://git.savannah.nongnu.org/cgit/lwip.git
  99. (git master)
  100. * [Enter new changes just after this line - do not remove this line]
  101. (STABLE-2.1.2):
  102. ++ Bugfixes:
  103. 2018-11-21: Jens Nielsen
  104. * netbiosns.c: fix expecting too large packet (bug #55069)
  105. 2018-11-19: Dirk Ziegelmeier
  106. * smtp.c: fix compiling with strict C compatibility because of strnlen (bug #55034)
  107. 2018-11-12: Simon Goldschmidt
  108. * tcp.c: fix overflow check in tcp_recved triggering invalid assertion (bug #55015)
  109. 2018-11-12: Simon Goldschmidt
  110. * tcp.c: fix a bug in sending RST segments (sent from port 0)
  111. (STABLE-2.1.1):
  112. ++ Bugfixes:
  113. 2018-11-01: Joan Lledó
  114. * sockets.c: fix bad assertion in lwip_poll_dec_sockets_used() (bug #54933)
  115. 2018-11-01: Dirk Ziegelmeier
  116. * ip4.c: don't send 127.* to default netif (bug #54670)
  117. 2018-10-23: David Girault
  118. * altcp_tls_mbedtls.c: fix use-after free (bug #54774)
  119. 2018-10-23: Ognjen Bjelica, Dirk Ziegelmeier
  120. * snmp_scalar.c: Avoid NULL pointer dereference (bug #54886)
  121. 2018-10-23: Simon Goldschmidt
  122. * Fix missing standard includes in multiple files
  123. 2018-10-17: Ivan Warren
  124. * def.h: fix casting htonX and ntohX to u16_t (bug #54850)
  125. 2018-10-12: Simon Goldschmidt
  126. * Revert "tcp_abandon: no need to buffer pcb-&gt;local_port" (fix that source port was 0 for RST
  127. called when aborting a connection)
  128. 2018-10-11: Jonas Rabenstein
  129. * tcp.c: tcp_recved: check for overflow and warn about too big values (patch #9699)
  130. 2018-10-06: Joan Lledó
  131. * sockets.c: alloc_socket(): Check for LWIP_SOCKET_POLL when setting select-
  132. related variables (patch #9696)
  133. 2018-10-04: Spencer
  134. * tcp.c: Update prev pointer when skipping entries in tcp_slowtmr (patch #9694)
  135. 2018-09-27: Martine Lenders
  136. * lowpan6.c: Fix IEEE 802.15.4 address setting (bug #54749)
  137. (STABLE-2.1.0):
  138. ++ New features:
  139. 2018-06-17: Simon Goldschmidt
  140. * lwiperf: implemented iPerf client mode
  141. 2018-04-23: Dirk Ziegelmeier
  142. * added cmake build files
  143. 2018-03-04: Ray Abram
  144. * netbios responder: respond to '*' queries
  145. 2018-02-23: Benjamin Aigner
  146. * 6lowpan: add 6lowpan-over-BLE netif (based on existing 6lowpan netif)
  147. 2018-02-22: Simon Goldschmidt
  148. * ipv6: add support for stateless DHCPv6 (to get DNS servers in SLAAC nets)
  149. 2018-02-16: Simon Goldschmidt
  150. * add raw API http(s) client (with proxy support)
  151. 2018-02-01: Simon Goldschmidt
  152. * tcp: add hooks to implement additional socket options
  153. 2018-02-01: Simon Goldschmidt
  154. * tcp: add hooks to implement tcp md5 signatures or similar (see contrib/addons for an example)
  155. 2018-01-05: Simon Goldschmidt
  156. * Added sys_mbox_trypost_fromisr() and tcpip_callbackmsg_trycallback_fromisr()
  157. These can be used to post preallocated messages from an ISR to the tcpip thread
  158. (e.g. when using FreeRTOS)
  159. 2018-01-02: Dirk Ziegelmeier
  160. * task #14780: Add debug helper asserts to ensure threading/locking requirements are met
  161. 2017-11-21: Simon Goldschmidt
  162. * task #14600: tcp_alloc(): kill TF_CLOSEPEND connections before other ESTABLISHED
  163. 2017-11-21: Simon Goldschmidt
  164. * makefsdata: added option "-ssi:&lt;filename&gt;" to control SSI tag checking/insertion
  165. through a list of filenames, not by checking the file extension at runtime
  166. 2017-11-20: Joel Cunningham
  167. * netconn: add LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE to use external DNS resolver (patch #9427)
  168. 2017-11-14: Joel Cunningham
  169. * netifapi: Add thread safe ARP cache APIs (task #14724)
  170. 2017-11-06: Axel Lin
  171. * TCP: kill existing connections with a LOWER priority than the one currently being opened.
  172. Previous implementations also kill existing connections of the SAME priority.
  173. 2017-09-21: Kalle Olavi Niemitalo
  174. * sockets: add poll() implementation (patch #9450)
  175. 2017-09-10: Joel Cunningham
  176. * sockets: add readv() implementation (task #14610)
  177. 2017-08-04: Simon Goldschmidt
  178. * Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct
  179. dhcp - they are used in a call stack only (p_out and options_out_len as well)
  180. 2017-08-04: Simon Goldschmidt
  181. * pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and
  182. pbuf_remove_header(size_t)
  183. 2017-07-20: Douglas
  184. * sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the
  185. time waited rather they are now defined to return != SYS_ARCH_TIMEOUT
  186. on success.
  187. 2017-07-03: Jakub Schmidtke
  188. * tcp: added support for sending TCP SACKs
  189. 2017-06-20: Joel Cunningham
  190. * netconn/netdb: added core locking support to netconn_gethostbyname (task #14523)
  191. 2017-04-25: Simon Goldschmidt
  192. * dhcp: added two hooks for adding and parsing user defined DHCP options
  193. 2017-04-25: Joel Cunningham
  194. * sockets: added recvmsg for UDP (together with CMSG and IP_PKTINFO) (task #14247)
  195. 2017-04-20: Joel Cunningham
  196. * tcp: added Appropriate Byte Counting support (task #14128)
  197. 2017-04-11: Simon Goldschmidt
  198. * netconn/sockets: remove fatal error handling, fix asynchronous error handling,
  199. ensure data before RST can be received
  200. 2017-03-30: Simon Goldschmidt
  201. * added "application layered TCP" connection API (altcp) for seamless integration
  202. of TLS or proxy connections
  203. 2017-03-09: Simon Goldschmidt
  204. * sockets: add recvmsg for TCP
  205. 2017-03-02: Joel Cunningham
  206. * netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write
  207. atomically in regards to TCP segmentation (patch #8882)
  208. 2017-03-02: Simon Goldschmidt
  209. * netconn: added nonblocking accept/recv to netconn API (task #14396)
  210. 2017-02-28: Simon Goldschmidt
  211. * Added LWIP_SINGLE_NETIF for small targets with only one netif
  212. 2017-02-10: David van Moolenbroek
  213. * Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets)
  214. 2017-02-04: David van Moolenbroek
  215. * IPv6 scopes support
  216. 2017-01-20: Joel Cunningham
  217. * sockets: add interface name/index APIs (task #14314)
  218. 2017-01-08: David van Moolenbroek
  219. * Extensions to RAW API (patch #9208)
  220. - Connected RAW PCBs
  221. - Add raw_sendto_if_src()
  222. - Support IP_HDRINCL socket option
  223. ++ Bugfixes:
  224. 2018-06-19: Simon Goldschmidt
  225. * tcp: fix RTO timer not working if link is down
  226. 2018-06-15: Sylvain Rochet
  227. * ppp: multiple smaller bugfixes
  228. 2018-05-17: Simon Goldschmidt
  229. * etharp: arp table can now be bigger than 127 entries
  230. 2018-04-25: Jens Nielsen
  231. * tftp server: correctly handle retransmissions
  232. 2018-04-18: Simon Goldschmidt
  233. sockets: fix race conditions when closing full-duplex sockets
  234. 2018-03-09: Simon Goldschmidt
  235. * 6lowpan: fix to work against contiki; added ZigBee encapsulation netif for tests
  236. 2018-02-04: Simon Goldschmidt
  237. * sockets: fix inconsistencies on close (inconsistent error codes, double FIN)
  238. 2018-01-05: Dirk Ziegelmeier
  239. * Fix bug #52748: the bug in timeouts.c by reimplementing timer logic to use
  240. absolute instead of relative timeout values
  241. 2017-12-31: Dirk Ziegelmeier
  242. * Fix bug #52704: DHCP and bad OFFER: Stop timeout only if offer is accepted
  243. 2017-11-08: Joel Cunningham
  244. * netif: ensure link and admin states are up in issue reports (bug #52353)
  245. 2017-09-12: David Lockyer
  246. * select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990)
  247. 2017-09-11: Simon Goldschmidt
  248. * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
  249. 2017-08-11: Joel Cunningham
  250. * lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729)
  251. 2017-08-08: Dirk Ziegelmeier
  252. * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -&gt; ip4_route_src(src, dest)
  253. to make parameter order consistent with other ip*_route*() functions
  254. Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order.
  255. 2017-08-04: Joel Cunningham
  256. * tcp: re-work persist timer to fully close window (details in bug #50837)
  257. 2017-07-26: Simon Goldschmidt
  258. * snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms)
  259. 2017-07-20: Simon Goldschmidt
  260. * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix',
  261. 'src/include/compat/stdc' etc.
  262. 2017-05-09: Joel Cunningham
  263. * tcp: add zero-window probe timeout (bug #50837)
  264. 2017-04-11: Simon Goldschmidt
  265. * sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT
  266. crit section) done for LWIP_TCPIP_CORE_LOCKING==1
  267. 2017-02-24: Simon Goldschmidt
  268. * sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX)
  269. 2017-02-24: Simon Goldschmidt
  270. * sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392)
  271. 2017-01-11: David van Moolenbroek
  272. * Lots of IPv6 related fixes and improvements
  273. (STABLE-2.0.3)
  274. ++ Bugfixes:
  275. 2017-09-11: Simon Goldschmidt
  276. * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
  277. 2017-08-02: Abroz Bizjak/Simon Goldschmidt
  278. * multiple fixes in IPv4 reassembly (leading to corrupted datagrams received)
  279. 2017-03-30: Simon Goldschmidt
  280. * dhcp.c: return ERR_VAL instead of asserting on offset-out-of-pbuf
  281. 2017-03-23: Dirk Ziegelmeier
  282. * dhcp.h: fix bug #50618 (dhcp_remove_struct() macro does not work)
  283. (STABLE-2.0.2)
  284. ++ New features:
  285. 2017-02-10: Dirk Ziegelmeier
  286. * Implement task #14367: Hooks need a better place to be defined:
  287. We now have a #define for a header file name that is #included in every .c
  288. file that provides hooks.
  289. 2017-02-10: Simon Goldschmidt
  290. * tcp_close does not fail on memory error (instead, FIN is sent from tcp_tmr)
  291. ++ Bugfixes:
  292. 2017-03-08
  293. * tcp: do not keep sending SYNs when getting ACKs
  294. 2017-03-08: Joel Cunningham
  295. * tcp: Initialize ssthresh to TCP_SND_BUF (bug #50476)
  296. 2017-03-01: Simon Goldschmidt
  297. * httpd: LWIP_HTTPD_POST_MANUAL_WND: fixed double-free when httpd_post_data_recved
  298. is called nested from httpd_post_receive_data() (bug #50424)
  299. 2017-02-28: David van Moolenbroek/Simon Goldschmidt
  300. * tcp: fixed bug #50418: LWIP_EVENT_API: fix invalid calbacks for SYN_RCVD pcb
  301. 2017-02-17: Simon Goldschmidt
  302. * dns: Improved DNS_LOCAL_HOSTLIST interface (bug #50325)
  303. 2017-02-16: Simon Goldschmidt
  304. * LWIP_NETCONN_FULLDUPLEX: fixed shutdown during write (bug #50274)
  305. 2017-02-13: Simon Goldschmidt/Dirk Ziegelmeier
  306. * For tiny targtes, LWIP_RAND is optional (fix compile time checks)
  307. 2017-02-10: Simon Goldschmidt
  308. * tcp: Fixed bug #47485 (tcp_close() should not fail on memory error) by retrying
  309. to send FIN from tcp_fasttmr
  310. 2017-02-09: Simon Goldschmidt
  311. * sockets: Fixed bug #44032 (LWIP_NETCONN_FULLDUPLEX: select might work on
  312. invalid/reused socket) by not allowing to reallocate a socket that has
  313. "select_waiting != 0"
  314. 2017-02-09: Simon Goldschmidt
  315. * httpd: Fixed bug #50059 (httpd LWIP_HTTPD_SUPPORT_11_KEEPALIVE vs.
  316. LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED)
  317. 2017-02-08: Dirk Ziegelmeier
  318. * Rename "IPv6 mapped IPv4 addresses" to their correct name from RFC4191:
  319. "IPv4-mapped IPv6 address"
  320. 2017-02-08: Luc Revardel
  321. * mld6.c: Fix bug #50220 (mld6_leavegroup does not send ICMP6_TYPE_MLD, even
  322. if last reporter)
  323. 2017-02-08: David van Moolenbroek
  324. * ip6.c: Patch #9250: fix source substitution in ip6_output_if()
  325. 2017-02-08: Simon Goldschmidt
  326. * tcp_out.c: Fixed bug #50090 (last_unsent-&gt;oversize_left can become wrong value
  327. in tcp_write error path)
  328. 2017-02-02: Dirk Ziegelmeier
  329. * Fix bug #50206: UDP Netconn bind to IP6_ADDR_ANY fails
  330. 2017-01-18: Dirk Ziegelmeier
  331. * Fix zero-copy RX, see bug bug #50064. PBUF_REFs were not supported as ARP requests.
  332. 2017-01-15: Axel Lin, Dirk Ziegelmeier
  333. * minor bug fixes in mqtt
  334. 2017-01-11: Knut Andre Tidemann
  335. * sockets/netconn: fix broken default ICMPv6 handling of checksums
  336. (STABLE-2.0.1)
  337. ++ New features:
  338. 2016-12-31: Simon Goldschmidt
  339. * tcp.h/.c: added function tcp_listen_with_backlog_and_err() to get the error
  340. reason when listening fails (bug #49861)
  341. 2016-12-20: Erik Andersen
  342. * Add MQTT client
  343. 2016-12-14: Jan Breuer:
  344. * opt.h, ndc.h/.c: add support for RDNSS option (as per RFC 6106)
  345. 2016-12-14: David van Moolenbroek
  346. * opt.h, nd6.c: Added LWIP_HOOK_ND6_GET_GW()
  347. 2016-12-09: Dirk Ziegelmeier
  348. * ip6_frag.c: Implemented support for LWIP_NETIF_TX_SINGLE_PBUF
  349. 2016-12-09: Simon Goldschmidt
  350. * dns.c: added one-shot multicast DNS queries
  351. 2016-11-24: Ambroz Bizjak, David van Moolenbroek
  352. * tcp_out.c: Optimize passing contiguous nocopy buffers to tcp_write (bug #46290)
  353. 2016-11-16: Dirk Ziegelmeier
  354. * sockets.c: added support for IPv6 mapped IPv4 addresses
  355. ++ Bugfixes:
  356. 2016-12-16: Thomas Mueller
  357. * api_lib.c: fixed race condition in return value of netconn_gethostbyname()
  358. (and thus also lwip_gethostbyname/_r() and lwip_getaddrinfo())
  359. 2016-12-15: David van Moolenbroek
  360. * opt.h, tcp: added LWIP_HOOK_TCP_ISN() to implement less predictable initial
  361. sequence numbers (see contrib/addons/tcp_isn for an example implementation)
  362. 2016-12-05: Dirk Ziegelmeier
  363. * fixed compiling with IPv4 disabled (IPv6 only case)
  364. 2016-11-28: Simon Goldschmidt
  365. * api_lib.c: fixed bug #49725 (send-timeout: netconn_write() can return
  366. ERR_OK without all bytes being written)
  367. 2016-11-28: Ambroz Bizjak
  368. * tcpi_in.c: fixed bug #49717 (window size in received SYN and SYN-ACK
  369. assumed scaled)
  370. 2016-11-25: Simon Goldschmidt
  371. * dhcp.c: fixed bug #49676 (Possible endless loop when parsing dhcp options)
  372. 2016-11-23: Dirk Ziegelmeier
  373. * udp.c: fixed bug #49662: multicast traffic is now only received on a UDP PCB
  374. (and therefore on a UDP socket/netconn) when the PCB is bound to IP_ADDR_ANY
  375. 2016-11-16: Dirk Ziegelmeier
  376. * *: Fixed dual-stack behaviour, IPv6 mapped IPv4 support in socket API
  377. 2016-11-14: Joel Cunningham
  378. * tcp_out.c: fixed bug #49533 (start persist timer when unsent seg can't fit
  379. in window)
  380. 2016-11-16: Roberto Barbieri Carrera
  381. * autoip.c: fixed bug #49610 (sometimes AutoIP fails to reuse the same address)
  382. 2016-11-11: Dirk Ziegelmeier
  383. * sockets.c: fixed bug #49578 (dropping multicast membership does not work
  384. with LWIP_SOCKET_OFFSET)
  385. (STABLE-2.0.0)
  386. ++ New features:
  387. 2016-07-27: Simon Goldschmidt
  388. * opt.h, timeouts.h/.c: added LWIP_TIMERS_CUSTOM to override the default
  389. implementation of timeouts
  390. 2016-07-xx: Dirk Ziegelmeier
  391. * Large overhaul of doxygen documentation
  392. 2016-04-05: Simon Goldschmidt
  393. * timers.h/.c: prepare for overriding current timeout implementation: all
  394. stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
  395. 2016-03-23: Simon Goldschmidt
  396. * tcp: call accept-callback with ERR_MEM when allocating a pcb fails on
  397. passive open to inform the application about this error
  398. ATTENTION: applications have to handle NULL pcb in accept callback!
  399. 2016-02-22: Ivan Delamer
  400. * Initial 6LoWPAN support
  401. 2016-02-XX to 2016-03-XX: Dirk Ziegelmeier
  402. * Cleanup TCPIP thread sync methods in a way that it is possibe to use them
  403. in arbitrary code that needs things to be done in TCPIP thread. Used to
  404. decouple netconn, netif, ppp and 6LoWPAN from LWIP core.
  405. 2016-02-XX: Dirk Ziegelmeier
  406. * Implement dual-stack support in RAW, UDP and TCP. Add new IP address
  407. type IPADDR_ANY_TYPE for this. Netconn/Socket API: Dual-stack is
  408. automatically supported when an IPv6 netconn/socket is created.
  409. 2015-12-26: Martin Hentschel and Dirk Ziegelmeier
  410. * Rewrite SNMP agent. SNMPv2c + MIB compiler.
  411. 2015-11-12: Dirk Ziegelmeier
  412. * Decouple SNMP stack from lwIP core and move stack to apps/ directory.
  413. Breaking change: Users have to call snmp_init() now!
  414. 2015-11-12: Dirk Ziegelmeier
  415. * Implement possibility to declare private memory pools. This is useful to
  416. decouple some apps from the core (SNMP stack) or make contrib app usage
  417. simpler (httpserver_raw)
  418. 2015-10-09: Simon Goldschmidt
  419. * started to move "private" header files containing implementation details to
  420. "lwip/priv/" include directory to seperate the API from the implementation.
  421. 2015-10-07: Simon Goldschmidt
  422. * added sntp client as first "supported" application layer protocol implementation
  423. added 'apps' folder
  424. 2015-09-30: Dirk Ziegelmeier
  425. * snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
  426. implementation by aggregating the "base class" (struct mib_node) in all
  427. derived node classes to get more type-safe code
  428. 2015-09-23: Simon Goldschmidt
  429. * netif.h/.c, nd6.c: task #13729: Convert netif addresses (IPv4 &amp; IPv6) to
  430. ip_addr_t (so they can be used without conversion/temporary storage)
  431. 2015-09-08: Dirk Ziegelmeier
  432. * snmp: Separate mib2 counter/table callbacks from snmp agent. This both cleans
  433. up the code and should allow integration of a 3rd party agent/mib2. Simple
  434. counters are kept in MIB2_STATS, tree/table change function prototypes moved to
  435. snmp_mib2.h.
  436. 2015-09-03: Simon Goldschmidt
  437. * opt.h, dns.h/.c: DNS/IPv6: added support for AAAA records
  438. 2015-09-01: Simon Goldschmidt
  439. * task #12178: hardware checksum capabilities can be configured per netif
  440. (use NETIF_SET_CHECKSUM_CTRL() in your netif's init function)
  441. 2015-08-30: Simon Goldschmidt
  442. * PBUF_REF with "custom" pbufs is now supported for RX pbufs (see pcapif in
  443. contrib for an example, LWIP_SUPPORT_CUSTOM_PBUF is required)
  444. 2015-08-30: Simon Goldschmidt
  445. * support IPv4 source based routing: define LWIP_HOOK_IP4_ROUTE_SRC to point
  446. to a routing function
  447. 2015-08-05: Simon Goldschmidt
  448. * many files: allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF
  449. and IP_MULTICAST_LOOP to be used without IGMP
  450. 2015-04-24: Simon Goldschmidt
  451. * dhcp.h/c, autoip.h/.c: added functions dhcp/autoip_supplied_address() to
  452. check for the source of address assignment (replacement for NETIF_FLAG_DHCP)
  453. 2015-04-10: Simon Goldschmidt
  454. * many files: task #13480: added LWIP_IPV4 define - IPv4 can be disabled,
  455. leaving an IPv6-only stack
  456. 2015-04-09: Simon Goldschmidt
  457. * nearly all files: task #12722 (improve IPv4/v6 address handling): renamed
  458. ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP
  459. version; ip_addr_t is used for all generic IP addresses for the API,
  460. ip(4/6)_addr_t are only used internally or when initializing netifs or when
  461. calling version-related functions
  462. 2015-03-24: Simon Goldschmidt
  463. * opt.h, ip4_addr.h, ip4.c, ip6.c: loopif is not required for loopback traffic
  464. any more but passed through any netif (ENABLE_LOOPBACK has to be enabled)
  465. 2015-03-23: Simon Goldschmidt
  466. * opt.h, etharp.c: with ETHARP_TABLE_MATCH_NETIF== 1, duplicate (Auto)-IP
  467. addresses on multiple netifs should now be working correctly (if correctly
  468. addressed by routing, that is)
  469. 2015-03-23: Simon Goldschmidt
  470. * etharp.c: Stable etharp entries that are about to expire are now refreshed
  471. using unicast to prevent unnecessary broadcast. Only if no answer is received
  472. after 15 seconds, broadcast is used.
  473. 2015-03-06: Philip Gladstone
  474. * netif.h/.c: patch #8359 (Provide utility function to add an IPv6 address to
  475. an interface)
  476. 2015-03-05: Simon Goldschmidt
  477. * netif.c, ip4.c, dhcp.c, autoip.c: fixed bug #37068 (netif up/down handling
  478. is unclear): correclty separated administrative status of a netif (up/down)
  479. from 'valid address' status
  480. ATTENTION: netif_set_up() now always has to be called, even when dhcp/autoip
  481. is used!
  482. 2015-02-26: patch by TabascoEye
  483. * netif.c, udp.h/.c: fixed bug #40753 (re-bind UDP pcbs on change of IP address)
  484. 2015-02-22: chrysn, Simon Goldschmidt
  485. * *.*: Changed nearly all functions taking 'ip(X)_addr_t' pointer to take
  486. const pointers (changed user callbacks: raw_recv_fn, udp_recv_fn; changed
  487. port callbacks: netif_output_fn, netif_igmp_mac_filter_fn)
  488. 2015-02-19: Ivan Delamer
  489. * netif.h, dhcp.c: Removed unused netif flag for DHCP. The preferred way to evaluate
  490. if DHCP is active is through netif-&gt;dhcp field.
  491. 2015-02-19: Ivan Delamer
  492. * netif.h, slipif.c, ppp.c: Removed unused netif flag for point to point connections
  493. 2015-02-18: Simon Goldschmidt
  494. * api_lib.c: fixed bug #37958 "netconn API doesn't handle correctly
  495. connections half-closed by peer"
  496. 2015-02-18: Simon Goldschmidt
  497. * tcp.c: tcp_alloc() prefers killing CLOSING/LAST_ACK over active connections
  498. (see bug #39565)
  499. 2015-02-16: Claudius Zingerli, Sergio Caprile
  500. * opt.h, dhcp.h/.c: patch #8361 "Add support for NTP option in DHCP"
  501. 2015-02-14: Simon Goldschmidt
  502. * opt.h, snmp*: added support for write-access community and dedicated
  503. community for sending traps
  504. 2015-02-13: Simon Goldschmidt
  505. * opt.h, memp.c: added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when
  506. a memp pool was empty and an item is now available
  507. 2015-02-13: Simon Goldschmidt
  508. * opt.h, pbuf.h/.c, etharp.c: Added the option PBUF_LINK_ENCAPSULATION_HLEN to
  509. allocate additional header space for TX on netifs requiring additional headers
  510. 2015-02-12: chrysn
  511. * timers.h/.c: introduce sys_timeouts_sleeptime (returns the time left before
  512. the next timeout is due, for NO_SYS==1)
  513. 2015-02-11: Nick van Ijzendoorn
  514. * opt.h, sockets.h/c: patch #7702 "Include ability to increase the socket number
  515. with defined offset"
  516. 2015-02-11: Frederick Baksik
  517. * opt.h, def.h, others: patch #8423 "arch/perf.h" should be made an optional item
  518. 2015-02-11: Simon Goldschmidt
  519. * api_msg.c, opt.h: started to implement fullduplex sockets/netconns
  520. (note that this is highly unstable yet!)
  521. 2015-01-17: Simon Goldschmidt
  522. * api: allow enabling socket API without (public) netconn API - netconn API is
  523. still used by sockets, but keeping it private (static) should allow better
  524. compiler optimizations
  525. 2015-01-16: Simon Goldschmidt
  526. * tcp_in.c: fixed bug #20506 "Initial congestion window is very small" again
  527. by implementing the calculation formula from RFC3390
  528. 2014-12-10: Simon Goldschmidt
  529. * api: added option LWIP_NETCONN_SEM_PER_THREAD to use a semaphore per thread
  530. instead of using one per netconn and per select call
  531. 2014-12-08: Simon Goldschmidt
  532. * ip6.h: fixed bug #43778: IPv6 header version not set on 16-bit platform
  533. (macro IP6H_VTCFL_SET())
  534. 2014-12-08: Simon Goldschmidt
  535. * icmp.c, ip4.c, pbuf.c, udp.c, pbuf.h: task #11472 Support PBUF_REF for RX
  536. (IPv6 and IPv4/v6 reassembly might not work yet)
  537. 2014-11-06: Simon Goldschmidt
  538. * sockets.c/.h, init.c: lwip_socket_init() is not needed any more
  539. -&gt; compatibility define
  540. 2014-09-16: Simon Goldschmidt
  541. * dns.c, opt.h: reduced ram usage by parsing DNS responses in place
  542. 2014-09-16: Simon Goldschmidt
  543. * pbuf.h/.c: added pbuf_take_at() and pbuf_put_at()
  544. 2014-09-15: Simon Goldschmidt
  545. * dns.c: added source port randomization to make the DNS client more robust
  546. (see bug #43144)
  547. 2013-09-02: Simon Goldschmidt
  548. * arch.h and many other files: added optional macros PACK_STRUCT_FLD_8() and
  549. PACK_STRUCT_FLD_S() to prevent gcc 4 from warning about struct members that
  550. do not need packing
  551. 2013-08-19: Simon Goldschmidt
  552. * netif.h: bug #42998: made NETIF_MAX_HWADDR_LEN overridable for some special
  553. networks
  554. 2013-03-17: Simon Goldschmidt (patch by Ghobad Emadi)
  555. * opt.h, etharp.c: Added LWIP_HOOK_ETHARP_GET_GW to implement IPv4 routing with
  556. multiple gateways
  557. 2013-04-20: Fatih Asici
  558. * opt.h, etharp.h/.c: patch #7993: Added support for transmitting packets
  559. with VLAN headers via hook function LWIP_HOOK_VLAN_SET and to check them
  560. via hook function LWIP_HOOK_VLAN_CHECK
  561. 2014-02-20: Simon Goldschmidt (based on patch by Artem Pisarenko)
  562. * patch #7885: modification of api modules to support FreeRTOS-MPU
  563. (don't pass stack-pointers to other threads)
  564. 2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab")
  565. * patch #6537/#7858: TCP window scaling support
  566. 2014-01-17: Jiri Engelthaler
  567. * icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
  568. IPv6 ICMP's
  569. 2012-08-22: Sylvain Rochet
  570. * New PPP stack for lwIP, developed in ppp-new branch.
  571. Based from pppd 2.4.5, released 2009-11-17, with huge changes to match
  572. code size and memory requirements for embedded devices, including:
  573. - Gluing together the previous low-level PPP code in lwIP to pppd 2.4.5, which
  574. is more or less what pppd sys-* files are, so that we get something working
  575. using the unix port.
  576. - Merged some patchs from lwIP Git repository which add interesting features
  577. or fix bugs.
  578. - Merged some patchs from Debian pppd package which add interesting features
  579. or fix bugs.
  580. - Ported PPP timeout handling to the lwIP timers system
  581. - Disabled all the PPP code using filesystem access, replaced in necessary cases
  582. to configuration variables.
  583. - Disabled all the PPP code forking processes.
  584. - Removed IPX support, lwIP does not support IPX.
  585. - Ported and improved random module from the previous PPP port.
  586. - Removed samba TDB (file-driven database) usage, because it needs a filesystem.
  587. - MS-CHAP required a DES implementation, we added the latest PolarSSL DES
  588. implementation which is under a BSD-ish license.
  589. - Also switched to PolarSSL MD4,MD5,SHA1 implementations, which are meant to be
  590. used in embedded devices with reduced memory footprint.
  591. - Removed PPP configuration file parsing support.
  592. - Added macro definition EAP_SUPPORT to make EAP support optional.
  593. - Added macro definition CHAP_SUPPORT to make CHAP support optional.
  594. - Added macro definition MSCHAP_SUPPORT to make MSCHAP support optional.
  595. - Added macro definition PAP_SUPPORT to make PAP support optional.
  596. - Cleared all Linux syscall calls.
  597. - Disabled demand support using a macro, so that it can be ported later.
  598. - Disabled ECP support using a macro, so that it can be ported later.
  599. - Disabled CCP support using a macro, so that it can be ported later.
  600. - Disabled CBCP support using a macro, so that it can be ported later.
  601. - Disabled LQR support using a macro, so that it can be ported later.
  602. - Print packet debug feature optional, through PRINTPKT_SUPPORT
  603. - Removed POSIX signal usage.
  604. - Fully ported PPPoS code from the previous port.
  605. - Fully ported PPPoE code from the previous port.
  606. - Fully ported VJ compression protocol code from the previous port.
  607. - Removed all malloc()/free() use from PPP, replaced by stack usage or PBUF.
  608. - Disabled PPP server support using a macro, so that it can be ported later.
  609. - Switched all PPP debug to lwIP debug system.
  610. - Created PPP Control Block (PPP PCB), removed PPP unit integer everywhere,
  611. removed all global variables everywhere, did everything necessary for
  612. the PPP stack to support more than one PPP session (pppd only support
  613. one session per process).
  614. - Removed the statically allocated output buffer, now using PBUF.
  615. - Improved structure size of all PPP modules, deep analyze of code to reduce
  616. variables size to the bare minimum. Switched all boolean type (char type in
  617. most architecture) to compiler generated bitfields.
  618. - Added PPP IPv6 support, glued lwIP IPv6 support to PPP.
  619. - Now using a persistent netif interface which can then be used in lwIP
  620. functions requiring a netif.
  621. - Now initializing PPP in lwip_init() function.
  622. - Reworked completely the PPP state machine, so that we don't end up in
  623. anymore in inconsistent state, especially with PPPoE.
  624. - Improved the way we handle PPP reconnection after disconnect, cleaning
  625. everything required so that we start the PPP connection again from a
  626. clean state.
  627. - Added PPP holdoff support, allow the lwIP user to wait a little bit before
  628. reconnecting, prevents connection flood, especially when using PPPoL2TP.
  629. - Added PPPoL2TP LAC support (a.k.a. UDP tunnels), adding a VPN client
  630. feature to lwIP, L2TP being a widely used tunnel protocol.
  631. - Switched all used PPP types to lwIP types (u8t, u16t, u32t, ...)
  632. - Added PPP API "sequential" thread-safe API, based from NETIFAPI.
  633. 2011-07-21: Simon Goldschmidt
  634. * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
  635. ioctl/FIONREAD return the size of the next pending datagram.
  636. 2011-05-25: Simon Goldschmidt
  637. * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
  638. combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
  639. and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
  640. code so that the code is more readable.
  641. 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
  642. * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
  643. Ivan! (this is work in progress: we're just post release anyway :-)
  644. ++ Bugfixes:
  645. 2016-08-23: Simon Goldschmidt
  646. * etharp: removed ETHARP_TRUST_IP_MAC since it is insecure and we don't need
  647. it any more after implementing unicast ARP renewal towards arp entry timeout
  648. 2016-07-20: Simon Goldschmidt
  649. * memp.h/.c: fixed bug #48442 (memp stats don't work for MEMP_MEM_MALLOC)
  650. 2016-07-21: Simon Goldschmidt (patch by Ambroz Bizjak)
  651. * tcp_in.c, tcp_out.c: fixed bug #48543 (TCP sent callback may prematurely
  652. report sent data when only part of a segment is acked) and don't include
  653. SYN/FIN in snd_buf counter
  654. 2016-07-19: Simon Goldschmidt
  655. * etharp.c: fixed bug #48477 (ARP input packet might update static entry)
  656. 2016-07-11: Simon Goldschmidt
  657. * tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking
  658. up old pcb-&gt;acked
  659. 2016-06-30: Simon Goldschmidt (original patch by Fabian Koch)
  660. * tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing)
  661. 2016-05-20: Dirk Ziegelmeier
  662. * sntp.h/.c: Fix return value of sntp_getserver() call to return a pointer
  663. 2016-04-05: Simon Goldschmidt (patch by Philip Gladstone)
  664. * udp.c: patch #8358: allow more combinations of listening PCB for IPv6
  665. 2016-04-05: Simon Goldschmidt
  666. * netconn/socket API: fixed bug# 43739 (Accept not reporting errors about
  667. aborted connections): netconn_accept() returns ERR_ABRT (sockets: ECONNABORTED)
  668. for aborted connections, ERR_CLSD (sockets: EINVAL) if the listening netconn
  669. is closed, which better seems to follow the standard.
  670. 2016-03-23: Florent Matignon
  671. * dhcp.c: fixed bug #38203: DHCP options are not recorded in all DHCP ack messages
  672. 2016-03-22: Simon Goldschmidt
  673. * tcp: changed accept handling to be done internally: the application does not
  674. have to call tcp_accepted() any more. Instead, when delaying accept (e.g. sockets
  675. do), call tcp_backlog_delayed()/tcp_backlog_accepted() (fixes bug #46696)
  676. 2016-03-22: Simon Goldschmidt
  677. * dns.c: ignore dns response parsing errors, only abort resolving for correct
  678. responses or error responses from correct server (bug #47459)
  679. 2016-03-17: Simon Goldschmidt
  680. * api_msg.c: fixed bug #47448 (netconn/socket leak if RST is received during close)
  681. 2016-03-17: Joel Cunningham
  682. * api_msg.c: don't fail closing a socket/netconn when failing to allocate the
  683. FIN segment; blocking the calling thread for a while is better than risking
  684. leaking a netconn/socket (see bug #46701)
  685. 2016-03-16: Joel Cunningham
  686. * tcp_out.c: reset rto timer on fast retransmission
  687. 2016-03-16: Deomid Ryabkov
  688. * tcp_out.c: fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS
  689. 2016-03-05: Simon Goldschmidt
  690. * err.h/.c, sockets.c: ERR_IF is not necessarily a fatal error
  691. 2015-11-19: fix by Kerem Hadimli
  692. * sockets.c: fixed bug #46471: lwip_accept() leaks socket descriptors if new
  693. netconn was already closed because of peer behavior
  694. 2015-11-12: fix by Valery Ushakov
  695. * tcp_in.c: fixed bug #46365 tcp_accept_null() should call tcp_abort()
  696. 2015-10-02: Dirk Ziegelmeier/Simon Goldschmidt
  697. * snmp: cleaned up snmp structs API (fixed race conditions from bug #46089,
  698. reduce ram/rom usage of tables): incompatible change for private MIBs
  699. 2015-09-30: Simon Goldschmidt
  700. * ip4_addr.c: fixed bug #46072: ip4addr_aton() does not check the number range
  701. of all address parts
  702. 2015-08-28: Simon Goldschmidt
  703. * tcp.c, tcp_in.c: fixed bug #44023: TCP ssthresh value is unclear: ssthresh
  704. is set to the full send window for active open, too, and is updated once
  705. after SYN to ensure the correct send window is used
  706. 2015-08-28: Simon Goldschmidt
  707. * tcp: fixed bug #45559: Window scaling casts u32_t to u16_t without checks
  708. 2015-08-26: Simon Goldschmidt
  709. * ip6_frag.h/.c: fixed bug bug #41009: IPv6 reassembly broken on 64-bit platforms:
  710. define IPV6_FRAG_COPYHEADER==1 on these platforms to copy the IPv6 header
  711. instead of referencing it, which gives more room for struct ip6_reass_helper
  712. 2015-08-25: Simon Goldschmidt
  713. * sockets.c: fixed bug #45827: recvfrom: TCP window is updated with MSG_PEEK
  714. 2015-08-20: Manoj Kumar
  715. * snmp_msg.h, msg_in.c: fixed bug #43790: Sending octet string of Length &gt;255
  716. from SNMP agent
  717. 2015-08-19: Jens Nielsen
  718. * icmp.c, ip4.c, tcp_in.c, udp.c, raw.c: fixed bug #45120: Broadcast &amp; multiple
  719. interfaces handling
  720. 2015-08-19: Simon Goldschmidt (patch by "Sandra")
  721. * dns.c: fixed bug #45004: dns response without answer might be discarded
  722. 2015-08-18: Chrysn
  723. * timers.c: patch #8704 fix sys_timeouts_sleeptime function
  724. 2015-07-01: Erik Ekman
  725. * puf.c: fixed bug #45454 (pbuf_take_at() skips write and returns OK if offset
  726. is at start of pbuf in chain)
  727. 2015-05-19: Simon Goldschmidt
  728. * dhcp.h/.c: fixed bugs #45140 and #45141 (dhcp was not stopped correctly after
  729. fixing bug #38204)
  730. 2015-03-21: Simon Goldschmidt (patch by Homyak)
  731. * tcp_in.c: fixed bug #44766 (LWIP_WND_SCALE: tcphdr-&gt;wnd was not scaled in
  732. two places)
  733. 2015-03-21: Simon Goldschmidt
  734. * tcp_impl.h, tcp.c, tcp_in.c: fixed bug #41318 (Bad memory ref in tcp_input()
  735. after tcp_close())
  736. 2015-03-21: Simon Goldschmidt
  737. * tcp_in.c: fixed bug #38468 (tcp_sent() not called on half-open connection for
  738. data ACKed with the same ack as FIN)
  739. 2015-03-21: Simon Goldschmidt (patch by Christoffer Lind)
  740. * dhcp.h/.c: fixed bug #38204 (DHCP lease time not handled correctly)
  741. 2015-03-20: Simon Goldschmidt
  742. * dhcp.c: fixed bug #38714 (Missing option and client address in DHCPRELEASE message)
  743. 2015-03-19: Simon Goldschmidt
  744. * api.h, tcpip.h, api_lib.c, api_msg.c: fixed race conditions in assigning
  745. netconn-&gt;last_err (fixed bugs #38121 and #37676)
  746. 2015-03-09: Simon Goldschmidt
  747. * ip4.c: fixed the IPv4 part of bug #43904 (ip_route() must detect linkup status)
  748. 2015-03-04: Simon Goldschmidt
  749. * nd6.c: fixed bug #43784 (a host should send at least one Router Solicitation)
  750. 2015-03-04: Valery Ushakov
  751. * ip6.c: fixed bug #41094 (Byte-order bug in IPv6 fragmentation header test)
  752. 2015-03-04: Zach Smith
  753. * nd6.c: fixed bug #38153 (nd6_input() byte order issues)
  754. 2015-02-26: Simon Goldschmidt
  755. * netif.c, tcp.h/.c: fixed bug #44378 (TCP connections are not aborted on netif
  756. remove)
  757. 2015-02-25: Simon Goldschmidt
  758. * ip4.c, etharp.c: fixed bug #40177 (System hangs when dealing with corrupted
  759. packets), implemented task #12357 (Ensure that malicious packets don't
  760. assert-fail): improved some pbuf_header calls to not assert-fail.
  761. 2015-02-25: patch by Joel Cunningham
  762. * udp.h/.c, sockets.c: fixed bug #43028 (IP_MULTICAST_TTL affects unicast
  763. datagrams)
  764. 2015-02-25: patch by Greg Renda
  765. * ip4_frag.c: fixed bug #38210 (ip reassembly while remove oldest datagram)
  766. 2015-02-25: Simon Goldschmidt
  767. * sockets.c: fixed bug #38165 (socket with mulicast): ensure igmp membership
  768. are dropped when socket (not netconn!) is closed.
  769. 2015-02-25: Simon Goldschmidt
  770. * ip4.h/.c, udp.c: fixed bug #38061 (wrong multicast routing in IPv4) by
  771. adding an optional default netif for multicast routing
  772. 2015-02-25: Simon Goldschmidt
  773. * netconn API: fixed that netconn_connect still used message passing for
  774. LWIP_TCPIP_CORE_LOCKING==1
  775. 2015-02-22: patch by Jens Nielsen
  776. * icmp.c: fixed bug #38803 (Source address in broadcast ping reply)
  777. 2015-02-22: Simon Goldschmidt
  778. * udp.h, sockets.c: added proper accessor functions for pcb-&gt;multicast_ip
  779. (previously used by get/setsockopt only)
  780. 2015-02-18: Simon Goldschmidt
  781. * sockets.c: Fixed select not reporting received FIN as 'readable' in certain
  782. rare cases (bug #43779: select(), close(), and TCP retransmission error)
  783. 2015-02-17: Simon Goldschmidt
  784. * err.h, sockets.c, api_msg.c: fixed bug #38853 "connect() use a wrong errno":
  785. return ERR_ALREADY/EALRADY during connect, ERR_ISCONN/EISCONN when already
  786. connected
  787. 2015-02-17: Simon Goldschmidt
  788. * tcp_impl.h, tcp_out.c, tcp.c, api_msg.c: fixed bug #37614 "Errors from
  789. ipX_output are not processed". Now tcp_output(_segment) checks for the return
  790. value of ipX_output and does not try to send more on error. A netif driver
  791. can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers
  792. are available again.
  793. 2015-02-14: patches by Freddie Chopin
  794. * snmp*: made community writable, fixed some const pointers
  795. 2015-02-13: Simon Goldschmidt
  796. * msg_in.c: fixed bug #22070 "MIB_OBJECT_WRITE_ONLY not implemented in SNMP"
  797. 2015-02-12: Simon Goldschmidt
  798. * ip.h, ip4.c, ip6.c: fixed bug #36403 "ip4_input() and ip6_input() always pass
  799. inp to higher layers": now the accepting netif is passed up, but the input
  800. netif is available through ip_current_input_netif() if required.
  801. 2015-02-11: patch by hichard
  802. * tcpip.c: fixed bug #43094 "The function tcpip_input() forget to handle IPv6"
  803. 2015-02-10: Simon Goldschmidt
  804. * netconn API: fixed that netconn_close/netconn_delete still used message passing
  805. for LWIP_TCPIP_CORE_LOCKING==1
  806. 2015-02-10: Simon Goldschmidt
  807. * netconn/socket api: fixed bug #44225 "closing TCP socket should time out
  808. eventually", implemented task #6930 "Implement SO_LINGER": closing TCP sockets
  809. times out after 20 seconds or after the configured SND_TIMEOUT or depending
  810. on the linger settings.
  811. 2015-01-27: Simon Goldschmidt
  812. * api_msg.c: fixed that SHUT_RD followed by SHUT_WR was different to SHUT_RDWR,
  813. fixed return value of lwip_netconn_do_close on unconnected netconns
  814. 2015-01-17: Simon Goldschmidt
  815. * sockets.c: fixed bug #43361 select() crashes with stale FDs
  816. 2015-01-17: Simon Goldschmidt
  817. * sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes"
  818. by rewriting set/getsockopt functions to combine checks with the actual code
  819. and add more NULL checks; this also fixes that CORE_LOCKING used message
  820. passing for set/getsockopt.
  821. 2014-12-19: Simon Goldschmidt
  822. * opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only
  823. when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for
  824. compatibility reasons)
  825. 2014-12-17: Simon Goldschmidt
  826. * tcp_out.c: fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for
  827. no-copy data with odd length
  828. 2014-12-10: Simon Goldschmidt
  829. * sockets.c, tcp.c, others: fixed bug #43797 set/getsockopt: SO_SNDTIMEO/SO_RCVTIMEO
  830. take int as option but should take timeval (LWIP_SO_SNDRCVTIMEO_STANDARD==0 can
  831. be used to revert to the old 'winsock' style behaviour)
  832. Fixed implementation of SO_ACCEPTCONN to just look at the pcb state
  833. 2014-12-09: Simon Goldschmidt
  834. * ip4.c: fixed bug #43596 IGMP queries from 0.0.0.0 are discarded
  835. 2014-10-21: Simon Goldschmidt (patch by Joel Cunningham and Albert Huitsing)
  836. * sockts.c: fixed bugs #41495 Possible threading issue in select() and #43278
  837. event_callback() handle context switch when calling sys_sem_signal()
  838. 2014-10-21: Simon Goldschmidt
  839. * api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set
  840. 2014-09-16: Kevin Cernekee
  841. * dns.c: patch #8480 Fix handling of dns_seqno wraparound
  842. 2014-09-16: Simon Goldschmidt
  843. * tcp_out.c: fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN
  844. when sending FIN
  845. 2014-09-03: Simon Goldschmidt
  846. * msg_in.c: fixed bug #39355 SNMP Memory Leak in case of error
  847. 2014-09-02: Simon Goldschmidt
  848. * err.h/.c, sockets.c, api_msg.c: fixed bug #43110 call getpeername() before
  849. listen() will cause a error
  850. 2014-09-02: Simon Goldschmidt
  851. * sockets.c: fixed bug #42117 lwip_fcntl does not set errno
  852. 2014-09-02: Simon Goldschmidt
  853. * tcp.c: fixed bug #42299 tcp_abort() leaves freed pcb on tcp_bound_pcbs list
  854. 2014-08-20: Simon Goldschmidt
  855. * dns.c: fixed bug #42987 lwIP is vulnerable to DNS cache poisoning due to
  856. non-randomized TXIDs
  857. 2014-06-03: Simon Goldschmidt
  858. * tcp_impl.h, tcp_in.c: fixed bug #37969 SYN packet dropped as short packet in
  859. tcp_input function
  860. 2014-05-20: Simon Goldschmidt
  861. * tcp_out.c: fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state
  862. 2014-05-19: Simon Goldschmidt
  863. * *.h: Fixed bug #35874 reserved identifier violation (removed leading underscores
  864. from header include guards)
  865. 2014-04-08: Simon Goldschmidt
  866. * tcp.c: Fixed bug #36167 tcp server crash when client closes (maximum window)
  867. 2014-04-06: Simon Goldschmidt
  868. * tcp_in.c: Fixed bug #36210 lwIP does not elicit an empty ACK when received
  869. unacceptable ACK
  870. 2014-04-06: Simon Goldschmidt
  871. * dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery
  872. is invalid when an IP is set to thet netif.
  873. 2014-03-14: Simon Goldschmidt
  874. * tcp_out.c: Fixed bug #36153 TCP Cheksum error if LWIP_CHECKSUM_ON_COPY=1
  875. 2014-03-11: Simon Goldschmidt (patch by Mason)
  876. * opt.h, sockets.c: fixed bug #35928 BSD sockets functions must set errno for
  877. POSIX-compliance
  878. 2014-02-27: Simon Goldschmidt
  879. * dhcp.c: fixed bug #40303 DHCP xid renewed when sending a DHCPREQUEST
  880. 2014-02-27: Simon Goldschmidt
  881. * raw.c: fixed bug #41680 raw socket can not receive IPv6 packet when
  882. IP_SOF_BROADCAST_RECV==1
  883. 2014-02-27: Simon Goldschmidt
  884. * api_msg.c, sockets.c: fixed bug #38404 getpeeraddr returns success on
  885. unconnected/listening TCP sockets
  886. 2014-02-27: Simon Goldschmidt
  887. * sockets.c: fixed bug #41729 Some socket functions return Exyz instead of -1
  888. 2014-02-25: Simon Goldschmidt
  889. * ip4.c: fixed bug #39514 ip_route() may return an IPv6-only interface
  890. 2014-02-25: Simon Goldschmidt, patch by Fatih Asici
  891. * pbuf.c: fixed bug #39356 Wrong increment in pbuf_memfind()
  892. 2014-02-25: Simon Goldschmidt
  893. * netif.c/.h, udp.c: fixed bug #39225 udp.c uses netif_matches_ip6_addr() incorrectly;
  894. renamed function netif_matches_ip6_addr() to netif_get_ip6_addr_match()
  895. 2014-02-25: Simon Goldschmidt
  896. * igmp.c: fixed bug #39145 IGMP membership report for 224.0.0.1
  897. 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
  898. * etharp.c, opt.h: fixed bug #34681 Limit ARP queue length by ARP_QUEUE_LEN (=3)
  899. 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
  900. * etharp.h/.c: fixed bug #34682 Limit ARP request flood for unresolved entry
  901. 2014-02-20: Simon Goldschmidt
  902. * tcp_out.c: fixed bug #39683 Assertion "seg-&gt;tcphdr not aligned" failed with
  903. MEM_ALIGNMENT = 8
  904. 2014-02-20: Simon Goldschmidt
  905. * sockets.c: fixed bug #39882 No function shall set errno to 0
  906. 2014-02-20: Simon Goldschmidt
  907. * mib_structs.c: fixed bug #40050 SNMP problem with MIB arrays &gt; 255
  908. 2014-02-20: Simon Goldschmidt
  909. * api.h, sockets.c: fixed bug #41499 netconn::recv_avail can overflow
  910. 2014-01-08: Stathis Voukelatos
  911. * memp_std.h: patch #7928 Fixed size calculation in MALLOC memory pool
  912. creation macro
  913. 2014-01-18: Brian Fahs
  914. * tcp_out.c: patch #8237: tcp_rexmit_rto fails to update pcb-&gt;unsent_oversize
  915. when necessary
  916. 2014-01-17: Grant Erickson, Jay Logue, Simon Goldschmidt
  917. * ipv6.c, netif.c: patch #7913 Enable Support for IPv6 Loopback
  918. 2014-01-16: Stathis Voukelatos
  919. * netif.c: patch #7902 Fixed netif_poll() operation when LWIP_LOOPBACK_MAX_PBUFS &gt; 0
  920. 2014-01-14: "Freddie Chopin"
  921. * snmp.h, mib2.c: fixed constness and spelling of sysdescr
  922. 2014-01-14: Simon Goldschmidt (patch by Thomas Faber)
  923. * tcpip.c: patch #8241: Fix implicit declaration of ip_input with
  924. LWIP_TCPIP_CORE_LOCKING_INPUT disabled
  925. 2014-01-14: chrysn
  926. * timers.c: patch #8244 make timeouts usable reliably from outside of the
  927. timeout routine
  928. 2014-01-10: Simon Goldschmidt
  929. * ip_frag.c, ip6_frag.c: fixed bug #41041 Potential use-after-free in IPv6 reassembly
  930. 2014-01-10: Simon Goldschmidt
  931. * memp.c: fixed bug #41188 Alignment error in memp_init() when MEMP_SEPARATE_POOLS==1
  932. 2014-01-10: Simon Goldschmidt
  933. * tcp.c: fixed bug #39898 tcp_fasttmr() possible lock due to infinte queue process loop
  934. 2013-06-29: Simon Goldschmidt
  935. * inet.h, sockets.h: partially fixed bug #37585: IPv6 compatibility (in socket structs)
  936. 2013-06-29: Simon Goldschmidt
  937. * inet6.h: bug #37585/task #12600: fixed struct in6_addr.s6_addr to conform to spec
  938. 2013-04-24: patch by Liam &lt;morepork&gt;
  939. * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
  940. 2013-04-24: Simon Goldschmidt
  941. * igmp.c: fixed possible division by zero
  942. 2013-04-24: Simon Goldschmidt
  943. * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
  944. 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
  945. * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
  946. 2013-01-15: Simon Goldschmidt
  947. * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
  948. 2013-01-15: Simon Goldschmidt
  949. * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
  950. 2013-01-14: Simon Goldschmidt
  951. * dns.c: fixed bug #37705 Possible memory corruption in DNS query
  952. 2013-01-11: Simon Goldschmidt
  953. * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
  954. 2012-08-22: Simon Goldschmidt
  955. * memp.c: fixed bug #37166: memp_sanity check loops itself
  956. 2012-08-13: Simon Goldschmidt
  957. * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
  958. dereferences NULL
  959. 2012-08-13: Simon Goldschmidt
  960. * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
  961. configured but no interfaces available
  962. 2012-08-13: Simon Goldschmidt
  963. * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
  964. 2012-05-11: Simon Goldschmidt (patch by Marty)
  965. * memp.c: fixed bug #36412: memp.c does not compile when
  966. MEMP_OVERFLOW_CHECK &gt; zero and MEMP_SEPARATE_POOLS == 1
  967. 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
  968. * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
  969. not packed)
  970. 2012-05-03: Simon Goldschmidt (patch by David Empson)
  971. * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
  972. zero length)
  973. 2012-03-25: Simon Goldschmidt
  974. * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
  975. for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
  976. 2012-03-25: Simon Goldschmidt
  977. * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
  978. pollution in api_msg.c and netifapi.c
  979. 2011-08-24: Simon Goldschmidt
  980. * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
  981. (STABLE-1.4.1)
  982. ++ New features:
  983. 2012-03-25: Simon Goldschmidt (idea by Mason)
  984. * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
  985. which are a simple wrapper to the correct lwIP include files.
  986. 2012-01-16: Simon Goldschmidt
  987. * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
  988. 2011-12-17: Simon Goldschmidt
  989. * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
  990. (fixes bug #35061)
  991. 2011-09-27: Simon Goldschmidt
  992. * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
  993. (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
  994. 2011-09-21: Simon Goldschmidt
  995. * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
  996. send (TCP only, bug #33820)
  997. 2011-09-21: Simon Goldschmidt
  998. * init.c: Converted runtime-sanity-checks into compile-time checks that can
  999. be disabled (since runtime checks can often not be seen on embedded targets)
  1000. 2011-09-11: Simon Goldschmidt
  1001. * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
  1002. to get a clear separation of which functions an application or port may use
  1003. (task #11281)
  1004. 2011-09-11: Simon Goldschmidt
  1005. * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
  1006. initial local TCP/UDP ports (so that different port ranges are used after
  1007. a reboot; bug #33818; this one added tcp_init/udp_init functions again)
  1008. 2011-09-03: Simon Goldschmidt
  1009. * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
  1010. 2011-08-24: Simon Goldschmidt
  1011. * opt.h, netif.h/.c: added netif remove callback (bug #32397)
  1012. 2011-07-26: Simon Goldschmidt
  1013. * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
  1014. function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
  1015. 2011-07-21: Simon Goldschmidt (patch by hanhui)
  1016. * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
  1017. Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
  1018. Also added code to allow ip_forward() to forward non-broadcast packets to
  1019. the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
  1020. 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
  1021. * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
  1022. pcb-&gt;state != LISTEN
  1023. 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
  1024. * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
  1025. memory message
  1026. ++ Bugfixes:
  1027. 2012-09-26: Simon Goldschmidt
  1028. * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
  1029. 2012-09-26: patch by Henrik Persson
  1030. * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
  1031. 2012-09-26: patch by Henrik Persson
  1032. * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
  1033. 2012-08-22: Simon Goldschmidt
  1034. * memp.c: fixed bug #37166: memp_sanity check loops itself
  1035. 2012-05-08: Simon Goldschmidt
  1036. * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was
  1037. a debug-check issue only)
  1038. 2012-03-27: Simon Goldschmidt
  1039. * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
  1040. 2012-03-27: Simon Goldschmidt (patch by Mason)
  1041. * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
  1042. send MSS
  1043. 2012-03-22: Simon Goldschmidt
  1044. * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
  1045. 2012-03-20: Simon Goldschmidt (patch by Mason)
  1046. * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
  1047. 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
  1048. * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
  1049. possible bug on little endian system
  1050. 2012-02-23: Simon Goldschmidt
  1051. * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
  1052. (introduced when fixing bug# 33551)
  1053. 2012-02-16: Simon Goldschmidt
  1054. * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
  1055. (bug #35541: PPP Memory Leak)
  1056. 2012-02-16: Simon Goldschmidt
  1057. * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
  1058. (introduced when fixing bug# 33551)
  1059. 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
  1060. * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
  1061. 2012-02-15: Simon Goldschmidt
  1062. * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
  1063. MEMP_MEM_MALLOC==1
  1064. 2012-02-12: Simon Goldschmidt
  1065. * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
  1066. MSS &gt; pcb-&gt;snd_wnd (by not creating segments bigger than half the window)
  1067. 2012-02-11: Simon Goldschmidt
  1068. * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
  1069. queue while closing
  1070. 2012-01-22: Simon Goldschmidt
  1071. * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
  1072. 2012-01-21: Simon Goldschmidt
  1073. * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
  1074. 2012-01-20: Simon Goldschmidt
  1075. * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
  1076. 2012-01-20: Simon Goldschmidt
  1077. * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
  1078. 2011-11-25: Simon Goldschmidt
  1079. * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
  1080. tcp_active_pcbs in some cases
  1081. 2011-11-23: Simon Goldschmidt
  1082. * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
  1083. '#ifndef sys_msleep'
  1084. 2011-11-22: Simon Goldschmidt
  1085. * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
  1086. netif is brought down
  1087. 2011-10-28: Simon Goldschmidt
  1088. * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb-&gt;dupacks
  1089. 2011-10-23: Simon Goldschmidt
  1090. * mem.c: fixed bug #34429: possible memory corruption with
  1091. LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
  1092. 2011-10-18: Simon Goldschmidt
  1093. * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
  1094. error value
  1095. 2011-10-18: Simon Goldschmidt
  1096. * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
  1097. windows (bug #34176 select after non-blocking send times out)
  1098. 2011-10-18: Simon Goldschmidt
  1099. * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
  1100. consider netif-&gt;mtu, causes slow network
  1101. 2011-10-18: Simon Goldschmidt
  1102. * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
  1103. 2011-10-18: Simon Goldschmidt
  1104. * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
  1105. 2011-10-17: Simon Goldschmidt
  1106. * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
  1107. 2011-10-13: Simon Goldschmidt
  1108. * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
  1109. zero window is received) by starting the persist timer when a zero window is
  1110. received, not when we have more data queued for sending than fits into the
  1111. window
  1112. 2011-10-13: Simon Goldschmidt
  1113. * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
  1114. 2011-10-13: Simon Goldschmidt
  1115. * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
  1116. used and not all protocols are enabled
  1117. 2011-10-12: Simon Goldschmidt
  1118. * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT &gt; 4
  1119. 2011-10-09: Simon Goldschmidt
  1120. * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
  1121. byte value when pcb-&gt;unacked != NULL
  1122. 2011-10-09: Simon Goldschmidt
  1123. * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
  1124. 2011-09-27: Simon Goldschmidt
  1125. * tcp_in.c, tcp_out.c: Reset pcb-&gt;unsent_oversize in 2 more places...
  1126. 2011-09-27: Simon Goldschmidt
  1127. * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
  1128. 2011-09-27: Simon Goldschmidt
  1129. * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
  1130. 2011-09-24: Simon Goldschmidt
  1131. * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
  1132. 2011-09-23: Simon Goldschmidt
  1133. * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
  1134. the last packet including FIN can lose data
  1135. 2011-09-22: Simon Goldschmidt
  1136. * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
  1137. account
  1138. 2011-09-21: Simon Goldschmidt
  1139. * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
  1140. in init.c
  1141. 2011-09-20: Simon Goldschmidt
  1142. * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
  1143. 2011-09-11: Simon Goldschmidt
  1144. * tcp_out.c: use pcb-&gt;mss instead of TCP_MSS for preallocate mss-sized pbufs
  1145. (bug #34019)
  1146. 2011-09-09: Simon Goldschmidt
  1147. * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
  1148. udp port matches
  1149. 2011-09-03: Simon Goldschmidt
  1150. * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
  1151. is aggregated and sent to application
  1152. 2011-09-01: Simon Goldschmidt
  1153. * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
  1154. to other options
  1155. 2011-09-01: Simon Goldschmidt
  1156. * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
  1157. 2011-08-24: Simon Goldschmidt
  1158. * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
  1159. accept() on UDP connections
  1160. 2011-08-24: Simon Goldschmidt
  1161. * sockets.h: fixed bug #34057 socklen_t should be a typedef
  1162. 2011-08-24: Simon Goldschmidt
  1163. * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
  1164. 2011-08-24: Simon Goldschmidt
  1165. * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
  1166. 2011-08-24: Simon Goldschmidt
  1167. * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
  1168. 2011-08-22: Simon Goldschmidt
  1169. * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
  1170. merely prevents nagle from not transmitting fast after closing.)
  1171. 2011-07-22: Simon Goldschmidt
  1172. * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
  1173. always EMSGSIZE on non-blocking sockets if data size &gt; send buffers) -&gt; now
  1174. lwip_send() sends as much as possible for non-blocking sockets
  1175. 2011-07-22: Simon Goldschmidt
  1176. * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
  1177. for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
  1178. at regular intervals from main level.
  1179. 2011-07-21: Simon Goldschmidt
  1180. * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
  1181. sending an ARP request when an ARP entry is used in the last minute before
  1182. it would time out.
  1183. 2011-07-04: Simon Goldschmidt
  1184. * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
  1185. 2011-06-26: Simon Goldschmidt
  1186. * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
  1187. updating its documentation only.
  1188. 2011-06-26: Simon Goldschmidt
  1189. * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
  1190. unaligned pointer.
  1191. 2011-06-26: Simon Goldschmidt
  1192. * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
  1193. 2011-05-25: Simon Goldschmidt
  1194. * tcp.c: fixed bug #33398 (pointless conversion when checking TCP port range)
  1195. (STABLE-1.4.0)
  1196. ++ New features:
  1197. 2011-03-27: Simon Goldschmidt
  1198. * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
  1199. calculate it in tcp_zero_window_probe (the only place where it was used).
  1200. 2010-11-21: Simon Goldschmidt
  1201. * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
  1202. (fixes bug #31525).
  1203. 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
  1204. * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
  1205. IP_MULTICAST_LOOP at socket- and raw-API level.
  1206. 2010-06-16: Simon Goldschmidt
  1207. * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
  1208. link-layer-addressed UDP traffic to be received while a netif is down (just
  1209. like DHCP during configuration)
  1210. 2010-05-22: Simon Goldschmidt
  1211. * many many files: bug #27352: removed packing from ip_addr_t, the packed
  1212. version is now only used in protocol headers. Added global storage for
  1213. current src/dest IP address while in input functions.
  1214. 2010-05-16: Simon Goldschmidt
  1215. * def.h: task #10391: Add preprocessor-macros for compile-time htonl
  1216. calculation (and use them throughout the stack where applicable)
  1217. 2010-05-16: Simon Goldschmidt
  1218. * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
  1219. instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
  1220. 2010-05-16: Simon Goldschmidt
  1221. * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
  1222. MEMP pool instead of the heap
  1223. 2010-05-13: Simon Goldschmidt
  1224. * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
  1225. new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
  1226. packets to more than one pcb.
  1227. 2010-05-02: Simon Goldschmidt
  1228. * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
  1229. UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
  1230. 2010-04-30: Simon Goldschmidt
  1231. * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
  1232. take a precalculated checksum, added pbuf_fill_chksum() to copy data
  1233. into a pbuf and at the same time calculating the checksum for that data
  1234. 2010-04-29: Simon Goldschmidt
  1235. * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
  1236. 2-byte-aligned IP addresses and MAC addresses
  1237. 2010-04-28: Patch by Bill Auerbach
  1238. * ip.c: Inline generating IP checksum to save a function call
  1239. 2010-04-14: Simon Goldschmidt
  1240. * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
  1241. tcpip_thread processes messages or timeouts to implement a watchdog.
  1242. 2010-03-28: Simon Goldschmidt
  1243. * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
  1244. fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
  1245. 2010-03-27: Simon Goldschmidt
  1246. * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
  1247. etharp_query to prevent unnecessary function calls (inspired by
  1248. patch #7135).
  1249. 2010-03-20: Simon Goldschmidt
  1250. * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
  1251. since the linker cannot do this automatically to save space.
  1252. 2010-03-20: Simon Goldschmidt
  1253. * opt.h, etharp.c/.h: Added support for static ARP table entries
  1254. 2010-03-14: Simon Goldschmidt
  1255. * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
  1256. when creating TCP segments, not when (re-)transmitting them.
  1257. 2010-03-07: Simon Goldschmidt
  1258. * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
  1259. on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
  1260. This should speed up receiving data on sockets as the select code in
  1261. event_callback is only executed when select is waiting.
  1262. 2010-03-06: Simon Goldschmidt
  1263. * tcp_out.c: task #7013 (Create option to have all packets delivered to
  1264. netif-&gt;output in one piece): Always copy to try to create single pbufs
  1265. in tcp_write.
  1266. 2010-03-06: Simon Goldschmidt
  1267. * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
  1268. by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
  1269. for tcp netconns to receive pbufs, not netbufs; use that function
  1270. for tcp sockets.
  1271. 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
  1272. * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
  1273. Work on tcp_enqueue: Don't waste memory when chaining segments,
  1274. added option TCP_OVERSIZE to prevent creating many small pbufs when
  1275. calling tcp_write with many small blocks of data. Instead, pbufs are
  1276. allocated larger than needed and the space is used for later calls to
  1277. tcp_write.
  1278. 2010-02-21: Simon Goldschmidt
  1279. * stats.c/.h: Added const char* name to mem- and memp-stats for easier
  1280. debugging.
  1281. 2010-02-21: Simon Goldschmidt
  1282. * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
  1283. implementation of tcp to make API usage cleare to application programmers
  1284. 2010-02-14: Simon Goldschmidt/Stephane Lesage
  1285. * ip_addr.h: Improved some defines working on ip addresses, added faster
  1286. macro to copy addresses that cannot be NULL
  1287. 2010-02-13: Simon Goldschmidt
  1288. * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
  1289. blocking send operation)
  1290. 2010-02-12: Simon Goldschmidt
  1291. * sockets.c/.h: Added a minimal version of posix fctl() to have a
  1292. standardised way to set O_NONBLOCK for nonblocking sockets.
  1293. 2010-02-12: Simon Goldschmidt
  1294. * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
  1295. memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
  1296. and dhcp work with user-allocated structs instead of callin mem_malloc
  1297. 2010-02-12: Simon Goldschmidt/Jeff Barber
  1298. * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
  1299. SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
  1300. 2010-02-12: Simon Goldschmidt
  1301. * sys layer: task #10139 (Prefer statically allocated memory): converted
  1302. mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
  1303. converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
  1304. task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
  1305. to let sys.h use binary semaphores instead of mutexes - as before)
  1306. 2010-02-09: Simon Goldschmidt (Simon Kallweit)
  1307. * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
  1308. (Restart system timeout handling)
  1309. 2010-02-09: Simon Goldschmidt
  1310. * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
  1311. netif.c) - loopif does not have to be created by the port any more,
  1312. just define LWIP_HAVE_LOOPIF to 1.
  1313. 2010-02-08: Simon Goldschmidt
  1314. * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
  1315. inet_ntoa_r/ipaddr_ntoa_r
  1316. 2010-02-08: Simon Goldschmidt
  1317. * netif.h: Added netif_s/get_igmp_mac_filter() macros
  1318. 2010-02-05: Simon Goldschmidt
  1319. * netif.h: Added function-like macros to get/set the hostname on a netif
  1320. 2010-02-04: Simon Goldschmidt
  1321. * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
  1322. make changing the actual implementation behind the typedef easier.
  1323. 2010-02-01: Simon Goldschmidt
  1324. * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
  1325. for allocating memory when getaddrinfo() is called.
  1326. 2010-01-31: Simon Goldschmidt
  1327. * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
  1328. them once instead of parsing for every option. This also removes
  1329. the need for mem_malloc from dhcp_recv and makes it possible to
  1330. correctly retrieve the BOOTP file.
  1331. 2010-01-30: simon Goldschmidt
  1332. * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
  1333. the sockets array.
  1334. 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
  1335. * api.h, api_msg.c, sockets.c: Added except set support in select
  1336. (patch #6860)
  1337. 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
  1338. * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
  1339. Add non-blocking support for connect (partly from patch #6860),
  1340. plus many cleanups in socket &amp; netconn API.
  1341. 2010-01-27: Simon Goldschmidt
  1342. * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
  1343. to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
  1344. 2010-01-26: Simon Goldschmidt
  1345. * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
  1346. 2010-01-14: Simon Goldschmidt
  1347. * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
  1348. by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
  1349. 2010-01-13: Simon Goldschmidt
  1350. * mem.c: The heap now may be moved to user-defined memory by defining
  1351. LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
  1352. (patch #6966 and bug #26133)
  1353. 2010-01-10: Simon Goldschmidt (Bill Auerbach)
  1354. * opt.h, memp.c: patch #6822 (Add option to place memory pools in
  1355. separate arrays)
  1356. 2010-01-10: Simon Goldschmidt
  1357. * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
  1358. LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
  1359. 2009-12-31: Simon Goldschmidt
  1360. * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
  1361. added timers.c/.h: Separated timer implementation from semaphore/mbox
  1362. implementation, moved timer implementation to timers.c/.h, timers are
  1363. now only called from tcpip_thread or by explicitly checking them.
  1364. (TASK#7235)
  1365. 2009-12-27: Simon Goldschmidt
  1366. * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
  1367. LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
  1368. ++ Bugfixes:
  1369. 2011-04-20: Simon Goldschmidt
  1370. * sys_arch.txt: sys_arch_timeouts() is not needed any more.
  1371. 2011-04-13: Simon Goldschmidt
  1372. * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
  1373. using ports in the IANA private/dynamic range (49152 through 65535).
  1374. 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
  1375. * etharp.h/.c: Fixed broken VLAN support.
  1376. 2011-03-27: Simon Goldschmidt
  1377. * tcp.c: Fixed bug #32926 (TCP_RMV(&amp;tcp_bound_pcbs) is called on unbound tcp
  1378. pcbs) by checking if the pcb was bound (local_port != 0).
  1379. 2011-03-27: Simon Goldschmidt
  1380. * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
  1381. 2011-03-27: Simon Goldschmidt
  1382. * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
  1383. raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
  1384. 2011-03-27: Simon Goldschmidt
  1385. * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
  1386. is present never times out) by starting retransmission timer before checking
  1387. route.
  1388. 2011-03-22: Simon Goldschmidt
  1389. * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
  1390. calling sio_read_abort() if the file descriptor is valid.
  1391. 2011-03-14: Simon Goldschmidt
  1392. * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
  1393. more than once can render a socket useless) since it mainly involves changing
  1394. "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
  1395. 2011-03-13: Simon Goldschmidt
  1396. * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
  1397. err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
  1398. use EALRADY instead of -1
  1399. 2011-03-13: Simon Goldschmidt
  1400. * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
  1401. connection has been aborted by err_tcp (since this is not a normal closing
  1402. procedure).
  1403. 2011-03-13: Simon Goldschmidt
  1404. * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
  1405. with pcb-&gt;state != CLOSED
  1406. 2011-02-17: Simon Goldschmidt
  1407. * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
  1408. documentation
  1409. 2011-02-17: Simon Goldschmidt
  1410. * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
  1411. 2011-01-24: Simon Goldschmidt
  1412. * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
  1413. 2010-12-02: Simon Goldschmidt
  1414. * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
  1415. 2010-11-23: Simon Goldschmidt
  1416. * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
  1417. LWIP_SO_RCVBUF and ioctl/FIONREAD.
  1418. 2010-11-23: Simon Goldschmidt
  1419. * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
  1420. least 1 packet -&gt; ARP_QUEUEING==0 now queues the most recent packet.
  1421. 2010-11-23: Simon Goldschmidt
  1422. * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
  1423. refusing 'refused_data' again.
  1424. 2010-11-22: Simon Goldschmidt
  1425. * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
  1426. after a successful nonblocking connection.
  1427. 2010-11-22: Simon Goldschmidt
  1428. * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
  1429. must be sent link-local
  1430. 2010-11-22: Simon Goldschmidt
  1431. * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
  1432. LWIP_TIMERS==0
  1433. 2010-11-20: Simon Goldschmidt
  1434. * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
  1435. 2010-11-20: Simon Goldschmidt
  1436. * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
  1437. resemble other stacks.
  1438. 2010-11-20: Simon Goldschmidt
  1439. * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
  1440. no-copy TCP writes will never succeed.
  1441. 2010-11-20: Simon Goldschmidt
  1442. * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
  1443. not match documentation: return ERR_ARG instead of ERR_VAL if not
  1444. initialized or wrong argument.
  1445. 2010-10-20: Simon Goldschmidt
  1446. * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
  1447. 2010-10-05: Simon Goldschmidt
  1448. * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
  1449. replugging the network cable after an AutoIP address was assigned.
  1450. 2010-08-10: Simon Goldschmidt
  1451. * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
  1452. 2010-08-03: Simon Goldschmidt
  1453. * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
  1454. 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
  1455. * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
  1456. endian architectures)
  1457. 2010-07-28: Simon Goldschmidt
  1458. * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
  1459. disabled.
  1460. 2010-07-27: Simon Goldschmidt
  1461. * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
  1462. harm but never did anything
  1463. 2010-07-21: Simon Goldschmidt
  1464. * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
  1465. add IP options)
  1466. 2010-07-16: Kieran Mansley
  1467. * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
  1468. 2010-07-10: Simon Goldschmidt
  1469. * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
  1470. 2010-06-30: Simon Goldschmidt
  1471. * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
  1472. netconn_delete)
  1473. 2010-06-28: Kieran Mansley
  1474. * timers.c remove unportable printing of C function pointers
  1475. 2010-06-24: Simon Goldschmidt
  1476. * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
  1477. NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
  1478. 2010-06-24: Simon Goldschmidt
  1479. * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
  1480. implemented shutdown at socket level.
  1481. 2010-06-21: Simon Goldschmidt
  1482. * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
  1483. problems with zero-copy DMA MACs) by adding custom pbufs and implementing
  1484. custom pbufs that reference other (original) pbufs. Additionally set
  1485. IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
  1486. 2010-06-15: Simon Goldschmidt
  1487. * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
  1488. 2010-06-14: Simon Goldschmidt
  1489. * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
  1490. 2010-06-12: Simon Goldschmidt
  1491. * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
  1492. state
  1493. 2010-05-17: Simon Goldschmidt
  1494. * netdb.c: Correctly NULL-terminate h_addr_list
  1495. 2010-05-16: Simon Goldschmidt
  1496. * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
  1497. "symbol already defined" i.e. when linking to winsock
  1498. 2010-05-05: Simon Goldschmidt
  1499. * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
  1500. overflow)
  1501. 2010-04-21: Simon Goldschmidt
  1502. * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
  1503. connection)
  1504. 2010-03-28: Luca Ceresoli
  1505. * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
  1506. 2010-03-27: Luca Ceresoli
  1507. * mib2.c: patch #7130: remove meaningless const qualifiers
  1508. 2010-03-26: Simon Goldschmidt
  1509. * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
  1510. 2010-03-26: Simon Goldschmidt
  1511. * various files: Fixed compiling with different options disabled (TCP/UDP),
  1512. triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
  1513. 2010-03-25: Simon Goldschmidt
  1514. * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
  1515. 2010-03-25: Simon Goldschmidt
  1516. * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
  1517. overrunning our rcv_wnd in ooseq case.
  1518. 2010-03-22: Simon Goldschmidt
  1519. * tcp.c: tcp_listen() did not copy the pcb's prio.
  1520. 2010-03-19: Simon Goldschmidt
  1521. * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
  1522. 2010-03-14: Simon Goldschmidt
  1523. * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
  1524. where ETH_PAD_SIZE &gt; 0) by moving definition of ETH_PAD_SIZE to opt.h
  1525. and basing PBUF_LINK_HLEN on it.
  1526. 2010-03-08: Simon Goldschmidt
  1527. * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
  1528. when assiging routable address): when checking incoming packets and
  1529. aborting existing connection on address change, filter out link-local
  1530. addresses.
  1531. 2010-03-06: Simon Goldschmidt
  1532. * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
  1533. 2010-03-06: Simon Goldschmidt
  1534. * ipv4/ip.c: Don't try to forward link-local addresses
  1535. 2010-03-06: Simon Goldschmidt
  1536. * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
  1537. addresses to gw
  1538. 2010-03-05: Simon Goldschmidt
  1539. * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
  1540. and state.
  1541. 2010-03-05: Simon Goldschmidt
  1542. * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
  1543. into multiple calls to tcp_write.
  1544. 2010-02-21: Simon Goldschmidt
  1545. * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
  1546. the implementation of DNS_USES_STATIC_BUF==1)
  1547. 2010-02-20: Simon Goldschmidt
  1548. * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
  1549. close() vs. shutdown(). Now the application does not get any more
  1550. recv callbacks after calling tcp_close(). Added tcp_shutdown().
  1551. 2010-02-19: Simon Goldschmidt
  1552. * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
  1553. confusion with realloc()
  1554. 2010-02-15: Simon Goldschmidt/Stephane Lesage
  1555. * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
  1556. (fixes bug #28899)
  1557. 2010-02-14: Simon Goldschmidt
  1558. * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
  1559. LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
  1560. admin-status of a netif are up
  1561. 2010-02-14: Simon Goldschmidt
  1562. * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
  1563. reception and is not really necessary
  1564. 2010-02-14: Simon Goldschmidt
  1565. * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
  1566. request was directed as us (RFC 826, Packet Reception), otherwise
  1567. only update existing entries; internalized some functions
  1568. 2010-02-14: Simon Goldschmidt
  1569. * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
  1570. disabled on netif used for PPPoE) by adding a new netif flag
  1571. (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
  1572. device but prevents usage of ARP (so that ethernet_input can be used
  1573. for PPPoE).
  1574. 2010-02-12: Simon Goldschmidt
  1575. * netif.c: netif_set_link_up/down: only do something if the link state
  1576. actually changes
  1577. 2010-02-12: Simon Goldschmidt/Stephane Lesage
  1578. * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
  1579. connect)
  1580. 2010-02-12: Simon Goldschmidt
  1581. * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
  1582. 2010-02-09: Simon Goldschmidt
  1583. * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
  1584. (recv() makes receive window update for data that wasn't received by
  1585. application)
  1586. 2010-02-09: Simon Goldschmidt/Stephane Lesage
  1587. * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
  1588. or any netconn_recv() error)
  1589. 2010-02-09: Simon Goldschmidt
  1590. * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
  1591. 2010-02-09: Simon Goldschmidt
  1592. * netif.c: For loopback packets, adjust the stats- and snmp-counters
  1593. for the loopback netif.
  1594. 2010-02-08: Simon Goldschmidt
  1595. * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
  1596. since they are not used anywhere else.
  1597. 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
  1598. * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
  1599. (patch from bug #28798)
  1600. 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
  1601. * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
  1602. another bug when LWIP_RAND() returns zero.
  1603. 2010-02-04: Simon Goldschmidt
  1604. * nearly every file: Use macros defined in ip_addr.h (some of them new)
  1605. to work with IP addresses (preparation for bug #27352 - Change ip_addr
  1606. from struct to typedef (u32_t) - and better code).
  1607. 2010-01-31: Simon Goldschmidt
  1608. * netif.c: Don't call the link-callback from netif_set_up/down() since
  1609. this invalidly retriggers DHCP.
  1610. 2010-01-29: Simon Goldschmidt
  1611. * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
  1612. portability file inet.h and its contents from the stack: moved htonX-
  1613. functions to def.h (and the new def.c - they are not ipv4 dependent),
  1614. let inet.h depend on ip_addr.h and not the other way round.
  1615. This fixes bug #28732.
  1616. 2010-01-28: Kieran Mansley
  1617. * tcp.c: Ensure ssthresh &gt;= 2*MSS
  1618. 2010-01-27: Simon Goldschmidt
  1619. * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
  1620. callback can lead to accessing unallocated memory. As a consequence,
  1621. ERR_ABRT means the application has called tcp_abort()!
  1622. 2010-01-25: Simon Goldschmidt
  1623. * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
  1624. not implemented in SNMP): write-only or not-accessible are still
  1625. returned by getnext (though not by get)
  1626. 2010-01-24: Simon Goldschmidt
  1627. * snmp: Renamed the private mib node from 'private' to 'mib_private' to
  1628. not use reserved C/C++ keywords
  1629. 2010-01-23: Simon Goldschmidt
  1630. * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
  1631. than 1 ms
  1632. 2010-01-21: Simon Goldschmidt
  1633. * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
  1634. if tcp_enqueue fails) both in raw- and netconn-API
  1635. 2010-01-19: Simon Goldschmidt
  1636. * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
  1637. 2010-01-18: Iordan Neshev/Simon Goldschmidt
  1638. * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
  1639. bugfix backports from 2.4.x.
  1640. 2010-01-18: Simon Goldschmidt
  1641. * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
  1642. 2010-01-17: Simon Goldschmidt
  1643. * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
  1644. task #10102: "netconn: clean up conn-&gt;err threading issues" by adding
  1645. error return value to struct api_msg_msg
  1646. 2010-01-17: Simon Goldschmidt
  1647. * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
  1648. to return err_t (bugs #27709 and #28087)
  1649. 2010-01-14: Simon Goldschmidt
  1650. * ...: Use typedef for function prototypes throughout the stack.
  1651. 2010-01-13: Simon Goldschmidt
  1652. * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
  1653. window = 0) by correctly draining recvmbox/acceptmbox
  1654. 2010-01-11: Simon Goldschmidt
  1655. * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
  1656. erroneous callbacks) by copying the code from recent pppd
  1657. 2010-01-10: Simon Goldschmidt
  1658. * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
  1659. 2010-01-10: Simon Goldschmidt
  1660. * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
  1661. 2010-01-08: Simon Goldschmidt
  1662. * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len &gt; 65535)
  1663. 2010-01-08: Simon Goldschmidt
  1664. * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
  1665. passed to dns_local_addhost() might be volatile
  1666. 2010-01-07: Simon Goldschmidt
  1667. * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
  1668. 2010-01-06: Simon Goldschmidt
  1669. * netdb.h: Fixed bug #28496: missing include guards in netdb.h
  1670. 2009-12-31: Simon Goldschmidt
  1671. * many ppp files: Reorganised PPP source code from ucip structure to pppd
  1672. structure to easily compare our code against the pppd code (around v2.3.1)
  1673. 2009-12-27: Simon Goldschmidt
  1674. * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
  1675. unit test
  1676. (STABLE-1.3.2)
  1677. ++ New features:
  1678. 2009-10-27 Simon Goldschmidt/Stephan Lesage
  1679. * netifapi.c/.h: Added netifapi_netif_set_addr()
  1680. 2009-10-07 Simon Goldschmidt/Fabian Koch
  1681. * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
  1682. support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
  1683. 2009-08-26 Simon Goldschmidt/Simon Kallweit
  1684. * slipif.c/.h: bug #26397: SLIP polling support
  1685. 2009-08-25 Simon Goldschmidt
  1686. * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
  1687. New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
  1688. 2009-08-25 Simon Goldschmidt
  1689. * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
  1690. 2009-08-24 Jakob Stoklund Olesen
  1691. * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
  1692. to netif_set_link_up().
  1693. 2009-08-23 Simon Goldschmidt
  1694. * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
  1695. to a human-readable string.
  1696. ++ Bugfixes:
  1697. 2009-12-24: Kieran Mansley
  1698. * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
  1699. (BUG#28241)
  1700. 2009-12-06: Simon Goldschmidt
  1701. * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
  1702. be statically allocated (like in ucip)
  1703. 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
  1704. * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
  1705. 2009-12-03: Simon Goldschmidt
  1706. * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
  1707. could have non-zero length
  1708. 2009-12-02: Simon Goldschmidt
  1709. * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
  1710. tcp_input_pcb until after calling the pcb's callbacks
  1711. 2009-11-29: Simon Goldschmidt
  1712. * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
  1713. sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
  1714. 2009-11-29: Simon Goldschmidt
  1715. * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
  1716. queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
  1717. 2009-11-26: Simon Goldschmidt
  1718. * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
  1719. segment
  1720. 2009-11-26: Simon Goldschmidt
  1721. * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
  1722. algorithm at PCB level
  1723. 2009-11-22: Simon Goldschmidt
  1724. * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
  1725. 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
  1726. * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
  1727. reusing time-wait pcb
  1728. 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
  1729. * sockets.c: Fixed bug #28062: Data received directly after accepting
  1730. does not wake up select
  1731. 2009-11-11: Simon Goldschmidt
  1732. * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
  1733. 2009-10-30: Simon Goldschmidt
  1734. * opt.h: Increased default value for TCP_MSS to 536, updated default
  1735. value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
  1736. 2009-10-28: Kieran Mansley
  1737. * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
  1738. to follow algorithm from TCP/IP Illustrated
  1739. 2009-10-27: Kieran Mansley
  1740. * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
  1741. 2009-10-25: Simon Goldschmidt
  1742. * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
  1743. pcb-&gt;recv is NULL to keep rcv_wnd correct)
  1744. 2009-10-25: Simon Goldschmidt
  1745. * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
  1746. 2009-10-23: Simon Goldschmidt (David Empson)
  1747. * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
  1748. 2009-10-21: Simon Goldschmidt
  1749. * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
  1750. trailing 1 byte len (SYN/FIN)
  1751. 2009-10-21: Simon Goldschmidt
  1752. * tcp_out.c: Fixed bug #27315: zero window probe and FIN
  1753. 2009-10-19: Simon Goldschmidt
  1754. * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
  1755. conditional code to assert where applicable), check pbuf length before
  1756. testing for valid reply
  1757. 2009-10-19: Simon Goldschmidt
  1758. * dhcp.c: Removed most calls to udp_connect since they aren't necessary
  1759. when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
  1760. 2009-10-16: Simon Goldschmidt
  1761. * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
  1762. valid DHCP packets -&gt; allow 0.0.0.0 as source address when LWIP_DHCP is
  1763. enabled
  1764. 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
  1765. * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
  1766. 2009-10-15: Simon Goldschmidt
  1767. * api_lib.c: Fixed bug #27709: conn-&gt;err race condition on netconn_recv()
  1768. timeout
  1769. 2009-10-15: Simon Goldschmidt
  1770. * autoip.c: Fixed bug #27704: autoip starts with wrong address
  1771. LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
  1772. of network byte order
  1773. 2009-10-11 Simon Goldschmidt (Jörg Kesten)
  1774. * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
  1775. which are not consecutive when retransmitting unacked segments
  1776. 2009-10-09 Simon Goldschmidt
  1777. * opt.h: Fixed default values of some stats to only be enabled if used
  1778. Fixes bug #27338: sys_stats is defined when NO_SYS = 1
  1779. 2009-08-30 Simon Goldschmidt
  1780. * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
  1781. function" by checking for loopback before calling ip_frag
  1782. 2009-08-25 Simon Goldschmidt
  1783. * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
  1784. 2009-08-23 Simon Goldschmidt
  1785. * ppp.c: bug #27078: Possible memory leak in pppInit()
  1786. 2009-08-23 Simon Goldschmidt
  1787. * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
  1788. is error.
  1789. 2009-08-23 Simon Goldschmidt
  1790. * opt.h, init.c: bug #26649: TCP fails when TCP_MSS &gt; TCP_SND_BUF
  1791. Fixed wrong parenthesis, added check in init.c
  1792. 2009-08-23 Simon Goldschmidt
  1793. * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
  1794. 2009-08-23 Simon Goldschmidt
  1795. * many ppp files: bug #27267: Added include to string.h where needed
  1796. 2009-08-23 Simon Goldschmidt
  1797. * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
  1798. (STABLE-1.3.1)
  1799. ++ New features:
  1800. 2009-05-10 Simon Goldschmidt
  1801. * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
  1802. LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
  1803. one pbuf to help MACs that don't support scatter-gather DMA.
  1804. 2009-05-09 Simon Goldschmidt
  1805. * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
  1806. ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
  1807. 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
  1808. * ip.h, ip.c: Added ip_current_netif() &amp; ip_current_header() to receive
  1809. extended info about the currently received packet.
  1810. 2009-04-27 Simon Goldschmidt
  1811. * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
  1812. 2009-04-25 Simon Goldschmidt
  1813. * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
  1814. bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
  1815. 2009-04-21 Simon Goldschmidt
  1816. * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
  1817. hosts table. New configuration options DNS_LOCAL_HOSTLIST and
  1818. DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
  1819. as an external function for lookup.
  1820. 2009-04-15 Simon Goldschmidt
  1821. * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
  1822. 2009-03-31 Kieran Mansley
  1823. * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
  1824. TCP timestamp options, off by default. Rework tcp_enqueue() to
  1825. take option flags rather than specified option data
  1826. 2009-02-18 Simon Goldschmidt
  1827. * cc.h: Added printf formatter for size_t: SZT_F
  1828. 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
  1829. * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
  1830. pings
  1831. 2009-02-12 Simon Goldschmidt
  1832. * init.h: Added LWIP_VERSION to get the current version of the stack
  1833. 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
  1834. * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
  1835. of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
  1836. is otherwise used)
  1837. 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
  1838. * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
  1839. is only used by UDPLITE at present, so conditionalise it.
  1840. 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
  1841. * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
  1842. "seed" address. This should reduce AUTOIP conflicts if
  1843. LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
  1844. 2008-10-02 Jonathan Larmour and Rishi Khan
  1845. * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
  1846. socket.
  1847. 2008-06-30 Simon Goldschmidt
  1848. * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
  1849. interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
  1850. mem_free to run between mem_malloc iterations. Added illegal counter for
  1851. mem stats.
  1852. 2008-06-27 Simon Goldschmidt
  1853. * stats.h/.c, some other files: patch #6483: stats module improvement:
  1854. Added defines to display each module's statistic individually, added stats
  1855. defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
  1856. 2008-06-17 Simon Goldschmidt
  1857. * err.h: patch #6459: Made err_t overridable to use a more efficient type
  1858. (define LWIP_ERR_T in cc.h)
  1859. 2008-06-17 Simon Goldschmidt
  1860. * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
  1861. to loopif
  1862. 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
  1863. * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
  1864. modified version of patch # 6370: Moved loopif code to netif.c so that
  1865. loopback traffic is supported on all netifs (all local IPs).
  1866. Added option to limit loopback packets for each netifs.
  1867. ++ Bugfixes:
  1868. 2009-08-12 Kieran Mansley
  1869. * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
  1870. out of window or out of order properly
  1871. 2009-08-12 Kieran Mansley
  1872. * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
  1873. 2009-07-28 Simon Goldschmidt
  1874. * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
  1875. 2009-07-27 Kieran Mansley
  1876. * api.h api_msg.h netdb.h sockets.h: add missing #include directives
  1877. 2009-07-09 Kieran Mansley
  1878. * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
  1879. recv_avail and don't increment counters until message successfully
  1880. sent to mbox
  1881. 2009-06-25 Kieran Mansley
  1882. * api_msg.c api.h: BUG26722: initialise netconn write variables
  1883. in netconn_alloc
  1884. 2009-06-25 Kieran Mansley
  1885. * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
  1886. 2009-06-25 Kieran Mansley
  1887. * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
  1888. simultaneous close behaviour, and make snd_nxt have the same meaning
  1889. as in the RFCs.
  1890. 2009-05-12 Simon Goldschmidt
  1891. * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
  1892. arp_table / uses etharp_query" by adding etharp_gratuitous()
  1893. 2009-05-12 Simon Goldschmidt
  1894. * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
  1895. to the IP header (used by igmp_ip_output_if)
  1896. 2009-05-06 Simon Goldschmidt
  1897. * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
  1898. defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
  1899. 2009-05-05 Simon Goldschmidt
  1900. * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
  1901. to crash
  1902. 2009-05-04 Simon Goldschmidt
  1903. * init.c: snmp was not initialized in lwip_init()
  1904. 2009-05-04 Frédéric Bernon
  1905. * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
  1906. 2009-05-03 Simon Goldschmidt
  1907. * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
  1908. (and unsent-&gt;next == NULL)
  1909. 2009-05-02 Simon Goldschmidt
  1910. * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
  1911. 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
  1912. 2009-05-02 Simon Goldschmidt
  1913. * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
  1914. 2009-05-01 Simon Goldschmidt
  1915. * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
  1916. 2009-05-01 Simon Goldschmidt
  1917. * ppp.c: bug #24228: Memory corruption with PPP and DHCP
  1918. 2009-04-29 Frédéric Bernon
  1919. * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
  1920. SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
  1921. of broadcast packets even when this option wasn't set. Port maintainers
  1922. which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
  1923. If you want this option also filter broadcast on recv operations, you also
  1924. have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
  1925. 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
  1926. * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
  1927. DHCP/AUTOIP cooperation
  1928. 2009-04-25 Simon Goldschmidt, Oleg Tyshev
  1929. * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb-&gt;cwnd
  1930. Fixed by sorting the unsent and unacked queues (segments are inserted at the
  1931. right place in tcp_output and tcp_rexmit).
  1932. 2009-04-25 Simon Goldschmidt
  1933. * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
  1934. when debugging": memp_sizes contained the wrong sizes (including sanity
  1935. regions); memp pools for MEM_USE_POOLS were too small
  1936. 2009-04-24 Simon Goldschmidt, Frédéric Bernon
  1937. * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
  1938. behavior, with with ip address string not ended by a '\0', a space or a
  1939. end of line)
  1940. 2009-04-19 Simon Goldschmidt
  1941. * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
  1942. pcb-&gt;err is called, not pcb-&gt;connected (with an error code).
  1943. 2009-04-19 Simon Goldschmidt
  1944. * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
  1945. no-copy-tcpwrite": deallocate option data, only concat segments with same flags
  1946. 2009-04-19 Simon Goldschmidt
  1947. * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
  1948. in the header pbuf, not the data pbuf)
  1949. 2009-04-18 Simon Goldschmidt
  1950. * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
  1951. 2009-04-15 Simon Goldschmidt
  1952. * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
  1953. 2009-04-15 Simon Goldschmidt
  1954. * dhcp.c: task #9192: mem_free of dhcp-&gt;options_in and dhcp-&gt;msg_in
  1955. 2009-04-15 Simon Goldschmidt
  1956. * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
  1957. ip_hinted_output() (for smaller code mainly)
  1958. 2009-04-15 Simon Goldschmidt
  1959. * inet.c: patch #6765: Supporting new line characters in inet_aton()
  1960. 2009-04-15 Simon Goldschmidt
  1961. * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
  1962. Converted constant OPTION_MAX_MSG_SIZE to netif-&gt;mtu, check if netif-&gt;mtu
  1963. is big enough in dhcp_start
  1964. 2009-04-15 Simon Goldschmidt
  1965. * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
  1966. 2009-04-15 Simon Goldschmidt
  1967. * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
  1968. 2009-04-15 Simon Goldschmidt
  1969. * sockets.c: bug #26121: set_errno can be overridden
  1970. 2009-04-09 Kieran Mansley (patch from Luca Ceresoli &lt;lucaceresoli&gt;)
  1971. * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
  1972. LWIP_TCP==0
  1973. 2009-04-09 Kieran Mansley (patch from Roy Lee &lt;roylee17&gt;)
  1974. * tcp.h: Patch#6802 Add do-while-clauses to those function like
  1975. macros in tcp.h
  1976. 2009-03-31 Kieran Mansley
  1977. * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
  1978. updates are calculated and sent (BUG20515)
  1979. * tcp_in.c: cope with SYN packets received during established states,
  1980. and retransmission of initial SYN.
  1981. * tcp_out.c: set push bit correctly when tcp segments are merged
  1982. 2009-03-27 Kieran Mansley
  1983. * tcp_out.c set window correctly on probes (correcting change made
  1984. yesterday)
  1985. 2009-03-26 Kieran Mansley
  1986. * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
  1987. connections where no reset required (bug #25622)
  1988. * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
  1989. (bug #20779)
  1990. 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
  1991. * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
  1992. too small depending on MEM_ALIGNMENT
  1993. 2009-02-16 Simon Goldschmidt
  1994. * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
  1995. converted size argument of netconn_write to 'size_t'
  1996. 2009-02-16 Simon Goldschmidt
  1997. * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
  1998. by moving accept callback function pointer to TCP_PCB_COMMON
  1999. 2009-02-12 Simon Goldschmidt
  2000. * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
  2001. option)
  2002. 2009-02-11 Simon Goldschmidt
  2003. * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
  2004. 2009-02-11 Simon Goldschmidt
  2005. * opt.h, api_msg.c: added configurable default valud for netconn-&gt;recv_bufsize:
  2006. RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
  2007. 2009-02-10 Simon Goldschmidt
  2008. * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
  2009. Accepts_pending is decrease on a corresponding listen pcb when a connection
  2010. in state SYN_RCVD is close.
  2011. 2009-01-28 Jonathan Larmour
  2012. * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
  2013. out of pool pbufs.
  2014. 2008-12-19 Simon Goldschmidt
  2015. * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
  2016. 2008-12-10 Tamas Somogyi, Frédéric Bernon
  2017. * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
  2018. port uses deleted netbuf.
  2019. 2008-10-18 Simon Goldschmidt
  2020. * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
  2021. in tcp_parseopt
  2022. 2008-10-15 Simon Goldschmidt
  2023. * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
  2024. by packing the struct ip_reass_helper.
  2025. 2008-10-03 David Woodhouse, Jonathan Larmour
  2026. * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
  2027. 2008-10-02 Jonathan Larmour
  2028. * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
  2029. padding is included.
  2030. 2008-09-30 Jonathan Larmour
  2031. * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
  2032. assertion check that addrlen isn't NULL.
  2033. 2008-09-30 Jonathan Larmour
  2034. * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
  2035. 2008-08-26 Simon Goldschmidt
  2036. * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
  2037. inet.h -&gt; moved declaration of struct in_addr from ip_addr.h to inet.h
  2038. 2008-08-14 Simon Goldschmidt
  2039. * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
  2040. tcp_close returns != ERR_OK)
  2041. 2008-07-08 Frédéric Bernon
  2042. * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
  2043. in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
  2044. 2008-06-24 Jonathan Larmour
  2045. * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
  2046. if tcp_seg_copy fails.
  2047. 2008-06-17 Simon Goldschmidt
  2048. * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
  2049. and created defines for swapping bytes and folding u32 to u16.
  2050. 2008-05-30 Kieran Mansley
  2051. * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
  2052. rather than rcv_ann_wnd when deciding if packets are in-window.
  2053. Contributed by &lt;arasmussen@consultant.datasys.swri.edu&gt;
  2054. 2008-05-30 Kieran Mansley
  2055. * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
  2056. passing as function pointers when MEM_LIBC_MALLOC is defined.
  2057. 2008-05-09 Jonathan Larmour
  2058. * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
  2059. stop it being treated as a fatal error.
  2060. 2008-04-15 Simon Goldschmidt
  2061. * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
  2062. (flag now cleared)
  2063. 2008-03-27 Simon Goldschmidt
  2064. * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
  2065. from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
  2066. in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
  2067. or heap memory from interrupt context
  2068. 2008-03-26 Simon Goldschmidt
  2069. * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
  2070. host sent a zero mss as TCP option.
  2071. (STABLE-1.3.0)
  2072. ++ New features:
  2073. 2008-03-10 Jonathan Larmour
  2074. * inet_chksum.c: Allow choice of one of the sample algorithms to be
  2075. made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
  2076. 2008-01-22 Frédéric Bernon
  2077. * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
  2078. TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
  2079. 2008-01-14 Frédéric Bernon
  2080. * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
  2081. to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
  2082. tcp_recv callback (see rawapi.txt).
  2083. 2008-01-14 Frédéric Bernon, Marc Chaland
  2084. * ip.c: Integrate patch #6369" ip_input : checking before realloc".
  2085. 2008-01-12 Frédéric Bernon
  2086. * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
  2087. netconn::sem per netconn::op_completed like suggested for the task #7490
  2088. "Add return value to sys_mbox_post".
  2089. 2008-01-12 Frédéric Bernon
  2090. * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
  2091. DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
  2092. sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
  2093. 2008-01-10 Frédéric Bernon
  2094. * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
  2095. "Add return value to sys_mbox_post". tcpip_callback is always defined as
  2096. "blocking" ("block" parameter = 1).
  2097. 2008-01-10 Frédéric Bernon
  2098. * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
  2099. netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
  2100. "Add return value to sys_mbox_post".
  2101. 2008-01-05 Frédéric Bernon
  2102. * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
  2103. Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
  2104. modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
  2105. indicate the number of pointers query by the mailbox. There is three defines
  2106. in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
  2107. netconn::acceptmbox. Port maintainers, you can decide to just add this new
  2108. parameter in your implementation, but to ignore it to keep the previous behavior.
  2109. The new sys_mbox_trypost function return a value to know if the mailbox is
  2110. full or if the message is posted. Take a look to sys_arch.txt for more details.
  2111. This new function is used in tcpip_input (so, can be called in an interrupt
  2112. context since the function is not blocking), and in recv_udp and recv_raw.
  2113. 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
  2114. * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
  2115. tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
  2116. "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
  2117. documentation in the rawapi.txt file.
  2118. 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
  2119. * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
  2120. 2007-12-31 Frédéric Bernon, Luca Ceresoli
  2121. * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
  2122. in autoip". The change in etharp_raw could be removed, since all calls to
  2123. etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
  2124. wrong in the future.
  2125. 2007-12-30 Frédéric Bernon, Tom Evans
  2126. * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
  2127. Filtering" reported by Tom Evans.
  2128. 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
  2129. * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
  2130. sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
  2131. applications have to call 'tcp_accepted(pcb)' in their accept callback to
  2132. keep accepting new connections.
  2133. 2007-12-13 Frédéric Bernon
  2134. * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
  2135. by err_t type. Add a new err_t code "ERR_INPROGRESS".
  2136. 2007-12-12 Frédéric Bernon
  2137. * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
  2138. are the one which have ram usage.
  2139. 2007-12-05 Frédéric Bernon
  2140. * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
  2141. set of variables (=0) or a local one (=1). In this last case, your port should
  2142. provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
  2143. which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
  2144. 2007-12-03 Simon Goldschmidt
  2145. * ip.c: ip_input: check if a packet is for inp first before checking all other
  2146. netifs on netif_list (speeds up packet receiving in most cases)
  2147. 2007-11-30 Simon Goldschmidt
  2148. * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
  2149. UDP: move a (connected) pcb selected for input to the front of the list of
  2150. pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
  2151. a packet.
  2152. 2007-11-28 Simon Goldschmidt
  2153. * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
  2154. 2007-11-25 Simon Goldschmidt
  2155. * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
  2156. algorithm.
  2157. 2007-11-24 Simon Goldschmidt
  2158. * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
  2159. to the new file netdb.c; included lwip_getaddrinfo.
  2160. 2007-11-21 Simon Goldschmidt
  2161. * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
  2162. based on the MTU of the netif used to send. Enabled by default. Disable by
  2163. setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
  2164. 2007-11-19 Frédéric Bernon
  2165. * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
  2166. received match the name query), implement DNS_USES_STATIC_BUF (the place where
  2167. copy dns payload to parse the response), return an error if there is no place
  2168. for a new query, and fix some minor problems.
  2169. 2007-11-16 Simon Goldschmidt
  2170. * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
  2171. removed files: core/inet.c, core/inet6.c
  2172. Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
  2173. inet and chksum part; changed includes in all lwIP files as appropriate
  2174. 2007-11-16 Simon Goldschmidt
  2175. * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
  2176. dns resolver function for netconn api (netconn_gethostbyname) and socket api
  2177. (gethostbyname/gethostbyname_r).
  2178. 2007-11-15 Jim Pettinato, Frédéric Bernon
  2179. * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
  2180. requests with RAW api interface. Initialization is done in lwip_init() with
  2181. build time options. DNS timer is added in tcpip_thread context. DHCP can set
  2182. DNS server ip addresses when options are received. You need to set LWIP_DNS=1
  2183. in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
  2184. some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
  2185. list with points to improve.
  2186. 2007-11-06 Simon Goldschmidt
  2187. * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
  2188. enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
  2189. for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
  2190. 2007-11-06 Simon Goldschmidt
  2191. * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
  2192. core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
  2193. implementation from netconn api applications.
  2194. 2007-11-03 Frédéric Bernon
  2195. * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &amp;
  2196. RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
  2197. by default). Netconn API users can use the netconn_recv_bufsize macro to access
  2198. it. This is a first release which have to be improve for TCP. Note it used the
  2199. netconn::recv_avail which need to be more "thread-safe" (note there is already
  2200. the problem for FIONREAD with lwip_ioctl/ioctlsocket).
  2201. 2007-11-01 Frédéric Bernon, Marc Chaland
  2202. * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
  2203. Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
  2204. layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
  2205. layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
  2206. Note that previous "copy" parameter for "write" APIs is now called "apiflags".
  2207. 2007-10-24 Frédéric Bernon
  2208. * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
  2209. TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
  2210. some code (like we have talk in "patch #5919 : Create compile switch to remove
  2211. select code"), but it could be done later.
  2212. 2007-10-08 Simon Goldschmidt
  2213. * many files: Changed initialization: many init functions are not needed any
  2214. more since we now rely on the compiler initializing global and static
  2215. variables to zero!
  2216. 2007-10-06 Simon Goldschmidt
  2217. * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
  2218. to enqueue the received pbufs so that multiple packets can be reassembled
  2219. simultaneously and no static reassembly buffer is needed.
  2220. 2007-10-05 Simon Goldschmidt
  2221. * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
  2222. all netifs (or ports) can use it.
  2223. 2007-10-05 Frédéric Bernon
  2224. * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
  2225. common function to reduce a little bit the footprint (for all functions using
  2226. only the "netif" parameter).
  2227. 2007-10-03 Frédéric Bernon
  2228. * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
  2229. netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
  2230. a little bit the footprint (for all functions using only the "netif" parameter).
  2231. 2007-09-15 Frédéric Bernon
  2232. * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
  2233. option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
  2234. netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
  2235. IP_MULTICAST_TTL and IP_MULTICAST_IF.
  2236. 2007-09-10 Frédéric Bernon
  2237. * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
  2238. even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
  2239. each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
  2240. decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
  2241. call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
  2242. or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
  2243. This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
  2244. snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
  2245. when it's queried (any direct call to "sysuptime" is changed by a call to
  2246. snmp_get_sysuptime).
  2247. 2007-09-09 Frédéric Bernon, Bill Florac
  2248. * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
  2249. and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif-&gt;flags
  2250. if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
  2251. igmp_report_groups() is now called inside netif_set_link_up() (need to have
  2252. LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
  2253. the next query message to receive the matching multicast streams).
  2254. 2007-09-08 Frédéric Bernon
  2255. * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
  2256. IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
  2257. Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
  2258. Enable to access to these fields with LWIP_TCP=0.
  2259. 2007-09-05 Frédéric Bernon
  2260. * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
  2261. ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
  2262. LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
  2263. Be careful, disabling ICMP make your product non-compliant to RFC1122, but
  2264. help to reduce footprint, and to reduce "visibility" on the Internet.
  2265. 2007-09-05 Frédéric Bernon, Bill Florac
  2266. * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
  2267. for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
  2268. parameters have to be provided: a task name, and a task stack size. For this
  2269. one, since it's platform dependant, you could define the best one for you in
  2270. your lwipopts.h. For port maintainers, you can just add these new parameters
  2271. in your sys_arch.c file, and but it's not mandatory, use them in your OS
  2272. specific functions.
  2273. 2007-09-05 Frédéric Bernon
  2274. * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
  2275. inside init.c for task #7142 "Sanity check user-configurable values".
  2276. 2007-09-04 Frédéric Bernon, Bill Florac
  2277. * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
  2278. memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
  2279. value). It will avoid potential fragmentation problems, use a counter to know
  2280. how many times a group is used on an netif, and free it when all applications
  2281. leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
  2282. check if LWIP_IGMP!=0).
  2283. 2007-09-03 Frédéric Bernon
  2284. * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
  2285. Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
  2286. the netif's "init" function). Use the "imr_interface" field (for socket layer)
  2287. and/or the "interface" field (for netconn layer), for join/leave operations.
  2288. The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
  2289. This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
  2290. 2007-08-30 Frédéric Bernon
  2291. * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
  2292. from api/api_lib". Now netbuf API is independant of netconn, and can be used
  2293. with other API (application based on raw API, or future "socket2" API). Ports
  2294. maintainers just have to add src/api/netbuf.c in their makefile/projects.
  2295. 2007-08-30 Frédéric Bernon, Jonathan Larmour
  2296. * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
  2297. user-configurable values".
  2298. 2007-08-29 Frédéric Bernon
  2299. * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
  2300. igmp_start is call inside netif_add. Now, igmp initialization is in the same
  2301. spirit than the others modules. Modify some IGMP debug traces.
  2302. 2007-08-29 Frédéric Bernon
  2303. * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
  2304. Add lwip_init function to regroup all modules initializations, and to provide
  2305. a place to add code for task #7142 "Sanity check user-configurable values".
  2306. Ports maintainers should remove direct initializations calls from their code,
  2307. and add init.c in their makefiles. Note that lwip_init() function is called
  2308. inside tcpip_init, but can also be used by raw api users since all calls are
  2309. disabled when matching options are disabled. Also note that their is new options
  2310. in opt.h, you should configure in your lwipopts.h (they are enabled per default).
  2311. 2007-08-26 Marc Boucher
  2312. * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
  2313. since they can under certain circumstances be called with an invalid conn
  2314. pointer after the connection has been closed (and conn has been freed).
  2315. 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
  2316. * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
  2317. Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
  2318. 2007-08-22 Frédéric Bernon
  2319. * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
  2320. to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
  2321. 2007-08-22 Frédéric Bernon
  2322. * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &amp;
  2323. ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
  2324. name is tcpip_input (we keep the name of 1.2.0 function).
  2325. 2007-08-17 Jared Grubb
  2326. * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
  2327. settings into new memp_std.h and optional user file lwippools.h. This adds
  2328. more dynamic mempools, and allows the user to create an arbitrary number of
  2329. mempools for mem_malloc.
  2330. 2007-08-16 Marc Boucher
  2331. * api_msg.c: Initialize newconn-&gt;state to NETCONN_NONE in accept_function;
  2332. otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
  2333. close the connection.
  2334. 2007-08-16 Marc Boucher
  2335. * sockets.c: lwip_accept(): check netconn_peer() error return.
  2336. 2007-08-16 Marc Boucher
  2337. * mem.c, mem.h: Added mem_calloc().
  2338. 2007-08-16 Marc Boucher
  2339. * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
  2340. for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
  2341. and starving other message types.
  2342. Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
  2343. 2007-08-16 Marc Boucher
  2344. * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
  2345. type and flgs (later renamed to flags).
  2346. Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
  2347. Improved lwip_recvfrom(). TCP push now propagated.
  2348. 2007-08-16 Marc Boucher
  2349. * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
  2350. provided by etharp.
  2351. 2007-08-16 Marc Boucher
  2352. * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
  2353. etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
  2354. Added PPPoE support and various PPP improvements.
  2355. 2007-07-25 Simon Goldschmidt
  2356. * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
  2357. making netbuf_copy_partial use this function.
  2358. 2007-07-25 Simon Goldschmidt
  2359. * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
  2360. 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
  2361. other stacks.
  2362. 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
  2363. * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
  2364. a link callback in the netif struct, and functions to handle it. Be carefull
  2365. for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
  2366. if you want to be sure to be compatible with future changes...
  2367. 2007-06-30 Frédéric Bernon
  2368. * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
  2369. 2007-06-21 Simon Goldschmidt
  2370. * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
  2371. LWIP_AUTOIP =0 and =1 to remove redundant code.
  2372. 2007-06-21 Simon Goldschmidt
  2373. * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
  2374. MEM_USE_POOLS to use 4 pools with different sized elements instead of a
  2375. heap. This both prevents memory fragmentation and gives a higher speed
  2376. at the cost of more memory consumption. Turned off by default.
  2377. 2007-06-21 Simon Goldschmidt
  2378. * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
  2379. netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
  2380. int to be able to send a bigger buffer than 64K with one time (mainly
  2381. used from lwip_send).
  2382. 2007-06-21 Simon Goldschmidt
  2383. * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
  2384. into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
  2385. 2007-06-21 Simon Goldschmidt
  2386. * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
  2387. netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
  2388. changes on low memory or empty send-buffer.
  2389. 2007-06-18 Simon Goldschmidt
  2390. * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
  2391. of 6 to avoid loading netif-&gt;hwaddr_len every time (since this file is only
  2392. used for ethernet and struct eth_addr already had a defined length of 6).
  2393. 2007-06-17 Simon Goldschmidt
  2394. * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
  2395. to disable UDP checksum generation on transmit.
  2396. 2007-06-13 Frédéric Bernon, Simon Goldschmidt
  2397. * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
  2398. pointers or parameters, and let the possibility to redefined it in cc.h. Use
  2399. this macro to check "conn" parameter in api_msg.c functions.
  2400. 2007-06-11 Simon Goldschmidt
  2401. * sockets.c, sockets.h: Added UDP lite support for sockets
  2402. 2007-06-10 Simon Goldschmidt
  2403. * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
  2404. by default) to switch off UDP-Lite support if not needed (reduces udp.c code
  2405. size)
  2406. 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
  2407. * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
  2408. AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
  2409. LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
  2410. (see TODO mark in the source code).
  2411. 2007-06-09 Simon Goldschmidt
  2412. * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
  2413. etharp_output() to match netif-&gt;output so etharp_output() can be used
  2414. directly as netif-&gt;output to save one function call.
  2415. 2007-06-08 Simon Goldschmidt
  2416. * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
  2417. NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
  2418. added initialization of those to ethernetif, slipif and loopif.
  2419. 2007-05-18 Simon Goldschmidt
  2420. * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
  2421. (defaulting to off for now) that can be set to 0 to send fragmented
  2422. packets by passing PBUF_REFs down the stack.
  2423. 2007-05-23 Frédéric Bernon
  2424. * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
  2425. connections, such present in patch #5959.
  2426. 2007-05-23 Frédéric Bernon
  2427. * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
  2428. code in only one part...
  2429. 2007-05-18 Simon Goldschmidt
  2430. * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
  2431. elements to overflow. This is achieved by adding some bytes before and after
  2432. each pool element (increasing their size, of course), filling them with a
  2433. prominent value and checking them on freeing the element.
  2434. Set it to 2 to also check every element in every pool each time memp_malloc()
  2435. or memp_free() is called (slower but more helpful).
  2436. 2007-05-10 Simon Goldschmidt
  2437. * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
  2438. PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
  2439. code size.
  2440. 2007-05-11 Frédéric Bernon
  2441. * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
  2442. Include a function pointer instead of a table index in the message to reduce
  2443. footprint. Disable some part of lwip_send and lwip_sendto if some options are
  2444. not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
  2445. 2007-05-10 Simon Goldschmidt
  2446. * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
  2447. \ extern "C" {' in all header files. Now you can write your application using
  2448. the lwIP stack in C++ and simply #include the core files. Note I have left
  2449. out the netif/ppp/*h header files for now, since I don't know which files are
  2450. included by applications and which are for internal use only.
  2451. 2007-05-09 Simon Goldschmidt
  2452. * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
  2453. memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
  2454. situations where some compilers might inline the copy and save a function
  2455. call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
  2456. 2007-05-08 Simon Goldschmidt
  2457. * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -&gt; malloc())
  2458. to be overriden in case the C-library malloc implementation is not protected
  2459. against concurrent access.
  2460. 2007-05-04 Simon Goldschmidt (Atte Kojo)
  2461. * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
  2462. multiple packets to the same host.
  2463. 2007-05-04 Frédéric Bernon, Jonathan Larmour
  2464. * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
  2465. to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
  2466. netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
  2467. sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
  2468. Warning, if you directly access to "fromaddr" &amp; "fromport" field from netbuf struct,
  2469. these fields are now renamed "addr" &amp; "port".
  2470. 2007-04-11 Jonathan Larmour
  2471. * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
  2472. sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
  2473. with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
  2474. by the port in sys_arch.h if desired.
  2475. 2007-04-06 Frédéric Bernon, Simon Goldschmidt
  2476. * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
  2477. allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
  2478. clients, using new functions from netifapi.h. Disable as default (no port change to do).
  2479. 2007-04-05 Frédéric Bernon
  2480. * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
  2481. 2007-04-04 Simon Goldschmidt
  2482. * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
  2483. use this for and architecture-independent form to tell the compiler you intentionally
  2484. are not using this variable. Can be overriden in cc.h.
  2485. 2007-03-28 Frédéric Bernon
  2486. * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
  2487. define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
  2488. string, point on one of your's ethernetif field, or alloc a string you will free yourself).
  2489. It will be used by DHCP to register a client hostname, but can also be use when you call
  2490. snmp_set_sysname.
  2491. 2007-03-28 Frédéric Bernon
  2492. * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
  2493. initialize a network interface's flag with. It tell this interface is an ethernet
  2494. device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
  2495. Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
  2496. 2007-03-26 Frédéric Bernon, Jonathan Larmour
  2497. * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
  2498. time if you only use PPP or SLIP. The default is enable. Note we don't have to call
  2499. etharp_init in your port's initilization sequence if you use tcpip.c, because this call
  2500. is done in tcpip_init function.
  2501. 2007-03-22 Frédéric Bernon
  2502. * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
  2503. new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
  2504. your lwipopts.h. More, unused counters are not defined in the stats structs, and not
  2505. display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
  2506. but never used. Fix msg_in.c with the correct #if test for a stat display.
  2507. 2007-03-21 Kieran Mansley
  2508. * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
  2509. Provides callback on netif up/down state change.
  2510. 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
  2511. * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
  2512. ip.c, netif.h, tcpip.c, opt.h:
  2513. New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
  2514. filter per all network interfaces. Declare a new function in netif to enable to
  2515. control the MAC filter (to reduce lwIP traffic processing).
  2516. 2007-03-11 Frédéric Bernon
  2517. * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
  2518. be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
  2519. unless you know what you're doing (default are RFC1122 compliant). Note
  2520. that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
  2521. 2007-03-08 Frédéric Bernon
  2522. * tcp.h: Keepalive values can be configured at compile time, but don't change
  2523. this unless you know what you're doing (default are RFC1122 compliant).
  2524. 2007-03-08 Frédéric Bernon
  2525. * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
  2526. Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
  2527. on UDP sockets/netconn.
  2528. 2007-03-08 Simon Goldschmidt
  2529. * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
  2530. 2007-03-06 Frédéric Bernon
  2531. * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
  2532. Implement SO_RCVTIMEO on UDP sockets/netconn.
  2533. 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
  2534. * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
  2535. on the stack and remove the API msg type from memp
  2536. 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
  2537. * sockets.h, sockets.c: Move socket initialization to new
  2538. lwip_socket_init() function.
  2539. NOTE: this changes the API with ports. Ports will have to be
  2540. updated to call lwip_socket_init() now.
  2541. 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
  2542. * api_lib.c: Use memcpy in netbuf_copy_partial.
  2543. ++ Bug fixes:
  2544. 2008-03-17 Frédéric Bernon, Ed Kerekes
  2545. * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
  2546. some problems to fill the IP header on some targets, use now the
  2547. ip.h macros to do it).
  2548. 2008-03-13 Frédéric Bernon
  2549. * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
  2550. (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
  2551. TCP connection caused a crash. Note that using (lwip_)recvfrom
  2552. like this is a bit slow and that using (lwip)getpeername is the
  2553. good lwip way to do it (so, using recv is faster on tcp sockets).
  2554. 2008-03-12 Frédéric Bernon, Jonathan Larmour
  2555. * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
  2556. recv_raw() does not consume data", and the ping sample (with
  2557. LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
  2558. returned the IP payload, without the IP header).
  2559. 2008-03-04 Jonathan Larmour
  2560. * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
  2561. and/or warnings on some systems where mem_size_t and size_t differ.
  2562. * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
  2563. 2008-03-04 Kieran Mansley (contributions by others)
  2564. * Numerous small compiler error/warning fixes from contributions to
  2565. mailing list after 1.3.0 release candidate made.
  2566. 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
  2567. * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
  2568. 2008-01-15 Kieran Mansley
  2569. * tcp_out.c: BUG20511. Modify persist timer to start when we are
  2570. prevented from sending by a small send window, not just a zero
  2571. send window.
  2572. 2008-01-09 Jonathan Larmour
  2573. * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
  2574. conflict with Linux system headers.
  2575. 2008-01-06 Jonathan Larmour
  2576. * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
  2577. address entirely on receiving a DHCPNAK, and restarting discovery.
  2578. 2007-12-21 Simon Goldschmidt
  2579. * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn-&gt;recv_avail
  2580. is not protected" by using new macros for interlocked access to modify/test
  2581. netconn-&gt;recv_avail.
  2582. 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
  2583. * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
  2584. 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
  2585. * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
  2586. of silly window avoidance and prevent lwIP from shrinking the window)
  2587. 2007-12-04 Simon Goldschmidt
  2588. * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
  2589. data packet was lost): add assert that all segment lists are empty in
  2590. tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
  2591. state from LAST_ACK in tcp_process
  2592. 2007-12-02 Simon Goldschmidt
  2593. * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
  2594. If including &lt;sys/time.h&gt; for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
  2595. has to be set to 0 in lwipopts.h
  2596. 2007-12-02 Simon Goldschmidt
  2597. * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
  2598. allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
  2599. netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
  2600. This is a fix for thread-safety and allocates all items needed for a netconn
  2601. when the netconn is created.
  2602. 2007-11-30 Simon Goldschmidt
  2603. * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
  2604. netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
  2605. to netif-&gt;dhcp-&gt;pcb only (if that exists) and not to any other pcb for the same
  2606. port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
  2607. 2007-11-27 Simon Goldschmidt
  2608. * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
  2609. letting ip_route only use netifs that are up.
  2610. 2007-11-27 Simon Goldschmidt
  2611. * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
  2612. and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
  2613. sockets block most operations once they have seen a fatal error.
  2614. 2007-11-27 Simon Goldschmidt
  2615. * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
  2616. netif to send as an argument (to be able to send on netifs that are down).
  2617. 2007-11-26 Simon Goldschmidt
  2618. * tcp_in.c: Fixed bug #21582: pcb-&gt;acked accounting can be wrong when ACKs
  2619. arrive out-of-order
  2620. 2007-11-21 Simon Goldschmidt
  2621. * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
  2622. Fixed the nagle algorithm; nagle now also works for all raw API applications
  2623. and has to be explicitly disabled with 'tcp_pcb-&gt;flags |= TF_NODELAY'
  2624. 2007-11-12 Frédéric Bernon
  2625. * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
  2626. of the netconn_peer and netconn_addr processing is done inside tcpip_thread
  2627. context in do_getaddr.
  2628. 2007-11-10 Simon Goldschmidt
  2629. * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
  2630. happen any time). Now the packet simply isn't enqueued when out of memory.
  2631. 2007-11-01 Simon Goldschmidt
  2632. * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb-&gt;mss) is set to 536 (or
  2633. TCP_MSS if that is smaller) as long as no MSS option is received from the
  2634. remote host.
  2635. 2007-11-01 Simon Goldschmidt
  2636. * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
  2637. is now based on TCP_MSS instead of pcb-&gt;mss (on passive open now effectively
  2638. sending our configured TCP_MSS instead of the one received).
  2639. 2007-11-01 Simon Goldschmidt
  2640. * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
  2641. calculated based on the configured TCP_MSS, not on the MSS option received
  2642. with SYN+ACK.
  2643. 2007-10-09 Simon Goldschmidt
  2644. * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
  2645. short and also was generated wrong if checksum coverage != tot_len;
  2646. receive: checksum was calculated wrong if checksum coverage != tot_len
  2647. 2007-10-08 Simon Goldschmidt
  2648. * mem.c: lfree was not updated in mem_realloc!
  2649. 2007-10-07 Frédéric Bernon
  2650. * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
  2651. crash error problem with netconn_peer &amp; netconn_addr". VERY IMPORTANT:
  2652. this change cause an API breakage for netconn_addr, since a parameter
  2653. type change. Any compiler should cause an error without any changes in
  2654. yours netconn_peer calls (so, it can't be a "silent change"). It also
  2655. reduce a little bit the footprint for socket layer (lwip_getpeername &amp;
  2656. lwip_getsockname use now a common lwip_getaddrname function since
  2657. netconn_peer &amp; netconn_addr have the same parameters).
  2658. 2007-09-20 Simon Goldschmidt
  2659. * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
  2660. by checking tcp_tw_pcbs also
  2661. 2007-09-19 Simon Goldschmidt
  2662. * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
  2663. 2007-09-15 Mike Kleshov
  2664. * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
  2665. 2007-09-06 Frédéric Bernon
  2666. * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
  2667. it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
  2668. already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
  2669. if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
  2670. 2007-08-30 Frédéric Bernon
  2671. * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
  2672. and fix some coding style.
  2673. 2007-08-28 Frédéric Bernon
  2674. * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
  2675. kind of packets. These packets are considered like Ethernet packets (payload
  2676. pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
  2677. are considered like IP packets (payload pointing to iphdr).
  2678. 2007-08-27 Frédéric Bernon
  2679. * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
  2680. problem with netconn_peer &amp; netconn_addr". Introduce NETCONN_LISTEN netconn_state
  2681. and remove obsolete ones (NETCONN_RECV &amp; NETCONN_ACCEPT).
  2682. 2007-08-24 Kieran Mansley
  2683. * inet.c Modify (acc &gt;&gt; 16) test to ((acc &gt;&gt; 16) != 0) to help buggy
  2684. compiler (Paradigm C++)
  2685. 2007-08-09 Frédéric Bernon, Bill Florac
  2686. * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
  2687. Introduce IGMP_STATS to centralize statistics management.
  2688. 2007-08-09 Frédéric Bernon, Bill Florac
  2689. * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
  2690. packet on a udp pcb binded on an netif's IP address, and not on "any".
  2691. 2007-08-09 Frédéric Bernon, Bill Florac
  2692. * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
  2693. This is mainly on using lookup/lookfor, and some coding styles...
  2694. 2007-07-26 Frédéric Bernon (and "thedoctor")
  2695. * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
  2696. 2007-07-25 Simon Goldschmidt
  2697. * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
  2698. tcp_output fails in tcp_close, the code in do_close_internal gets simpler
  2699. (tcp_output is called again later from tcp timers).
  2700. 2007-07-25 Simon Goldschmidt
  2701. * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
  2702. copy_from_pbuf, which illegally modified the given pbuf.
  2703. 2007-07-25 Simon Goldschmidt
  2704. * tcp_out.c: tcp_enqueue: pcb-&gt;snd_queuelen didn't work for chaine PBUF_RAMs:
  2705. changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
  2706. 2007-07-24 Simon Goldschmidt
  2707. * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
  2708. correct state (must be CLOSED).
  2709. 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
  2710. * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
  2711. allocation. It now returns NULL.
  2712. 2007-07-13 Frédéric Bernon
  2713. * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
  2714. all error cases.
  2715. 2007-07-13 Frédéric Bernon
  2716. * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
  2717. because current code doesn't follow rawapi.txt documentation.
  2718. 2007-07-13 Kieran Mansley
  2719. * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
  2720. out of sequence processing of received packets
  2721. 2007-07-03 Simon Goldschmidt
  2722. * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
  2723. assumption is made that this pbuf is in one piece (i.e. not chained). These
  2724. assumptions clash with the possibility of converting to fully pool-based
  2725. pbuf implementations, where PBUF_RAM pbufs might be chained.
  2726. 2007-07-03 Simon Goldschmidt
  2727. * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
  2728. when closing tcp netconns: removed conn-&gt;sem, less context switches when
  2729. closing, both netconn_close and netconn_delete should safely close tcp
  2730. connections.
  2731. 2007-07-02 Simon Goldschmidt
  2732. * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
  2733. tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
  2734. to cache ARP table indices with each pcb instead of single-entry cache for
  2735. the complete stack.
  2736. 2007-07-02 Simon Goldschmidt
  2737. * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
  2738. warnings when assigning to smaller types.
  2739. 2007-06-28 Simon Goldschmidt
  2740. * tcp_out.c: Added check to prevent tcp_pcb-&gt;snd_queuelen from overflowing.
  2741. 2007-06-28 Simon Goldschmidt
  2742. * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
  2743. a segment contained chained pbufs)
  2744. 2007-06-28 Frédéric Bernon
  2745. * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
  2746. a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
  2747. possible to define this macro in your own lwipopts.h to always use C library's
  2748. rand(). Note that autoip_create_rand_addr doesn't use this macro.
  2749. 2007-06-28 Frédéric Bernon
  2750. * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
  2751. LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
  2752. in api_lib/api_msg (use pointers and not type with table, etc...)
  2753. 2007-06-26 Simon Goldschmidt
  2754. * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
  2755. 2007-06-25 Simon Goldschmidt
  2756. * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p-&gt;payload
  2757. for udp packets with no matching pcb.
  2758. 2007-06-25 Simon Goldschmidt
  2759. * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
  2760. could get udp input packets if the remote side matched.
  2761. 2007-06-13 Simon Goldschmidt
  2762. * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
  2763. changed in netif_set_ipaddr if previous netif-&gt;ip_addr.addr was 0.
  2764. 2007-06-13 Simon Goldschmidt
  2765. * api_msg.c: pcb_new sets conn-&gt;err if protocol is not implemented
  2766. -&gt; netconn_new_..() does not allocate a new connection for unsupported
  2767. protocols.
  2768. 2007-06-13 Frédéric Bernon, Simon Goldschmidt
  2769. * api_lib.c: change return expression in netconn_addr and netconn_peer, because
  2770. conn-&gt;err was reset to ERR_OK without any reasons (and error was lost)...
  2771. 2007-06-13 Frédéric Bernon, Matthias Weisser
  2772. * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
  2773. MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
  2774. some macro names collision with some OS macros.
  2775. 2007-06-11 Simon Goldschmidt
  2776. * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
  2777. create checksum over the complete packet. On RX, if it's &lt; 8 (and not 0),
  2778. discard the packet. Also removed the duplicate 'udphdr-&gt;chksum = 0' for both
  2779. UDP &amp; UDP Lite.
  2780. 2007-06-11 Srinivas Gollakota &amp; Oleg Tyshev
  2781. * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
  2782. where TCP flags wasn't initialized in tcp_keepalive.
  2783. 2007-06-03 Simon Goldschmidt
  2784. * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
  2785. registered, p-&gt;payload was modified without modifying p-&gt;len if sending
  2786. icmp_dest_unreach() (had no negative effect but was definitively wrong).
  2787. 2007-06-03 Simon Goldschmidt
  2788. * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
  2789. re-used the input pbuf even if that didn't have enough space to include the
  2790. link headers. Now the space is tested and a new pbuf is allocated for the
  2791. echo response packet if the echo request pbuf isn't big enough.
  2792. 2007-06-01 Simon Goldschmidt
  2793. * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
  2794. 2007-05-23 Frédéric Bernon
  2795. * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
  2796. allocated by do_listen if success) and netconn_accept errors handling. In
  2797. most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
  2798. by ASSERT, except for netconn_delete.
  2799. 2007-05-23 Frédéric Bernon
  2800. * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
  2801. an error code if it's impossible to fetch a pbuf on a TCP connection (and not
  2802. directly close the recvmbox).
  2803. 2007-05-22 Simon Goldschmidt
  2804. * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
  2805. bound but unconnected (and non-listening) tcp_pcbs.
  2806. 2007-05-22 Frédéric Bernon
  2807. * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
  2808. used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
  2809. sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
  2810. like "sys_timeout" in their application threads.
  2811. 2007-05-22 Frédéric Bernon
  2812. * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
  2813. which parameters are used by which do_xxx function, and to avoid "misusing"
  2814. parameters (patch #5938).
  2815. 2007-05-22 Simon Goldschmidt
  2816. * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
  2817. changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
  2818. is only 8 bits wide. This affects the api, as there, the protocol was
  2819. u16_t, too.
  2820. 2007-05-18 Simon Goldschmidt
  2821. * memp.c: addition to patch #5913: smaller pointer was returned but
  2822. memp_memory was the same size -&gt; did not save memory.
  2823. 2007-05-16 Simon Goldschmidt
  2824. * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif-&gt;input() returns
  2825. != ERR_OK.
  2826. 2007-05-16 Simon Goldschmidt
  2827. * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
  2828. as the one of the netif used for sending to prevent sending from old
  2829. addresses after a netif address gets changed (partly fixes bug #3168).
  2830. 2007-05-16 Frédéric Bernon
  2831. * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
  2832. with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
  2833. tcpip_init) because we have to be sure that network interfaces are already
  2834. added (mac filter is updated only in igmp_init for the moment).
  2835. 2007-05-16 Simon Goldschmidt
  2836. * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
  2837. into sys_arch_sem_wait calls to prevent timers from running while waiting
  2838. for the heap. This fixes bug #19167.
  2839. 2007-05-13 Simon Goldschmidt
  2840. * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
  2841. for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
  2842. tcp.h to sockets.h.
  2843. 2007-05-07 Simon Goldschmidt
  2844. * mem.c: Another attempt to fix bug #17922.
  2845. 2007-05-04 Simon Goldschmidt
  2846. * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
  2847. implementation so that it can be reused (don't allocate the target
  2848. pbuf inside pbuf_copy()).
  2849. 2007-05-04 Simon Goldschmidt
  2850. * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
  2851. to save a little RAM (next pointer of memp is not used while not in pool).
  2852. 2007-05-03 "maq"
  2853. * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
  2854. (patch #3574).
  2855. 2007-04-23 Simon Goldschmidt
  2856. * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
  2857. in NULL reference for incoming TCP packets". Loopif has to be configured
  2858. (using LWIP_LOOPIF_MULTITHREADING) to directly call netif-&gt;input()
  2859. (multithreading environments, e.g. netif-&gt;input() = tcpip_input()) or
  2860. putting packets on a list that is fed to the stack by calling loopif_poll()
  2861. (single-thread / NO_SYS / polling environment where e.g.
  2862. netif-&gt;input() = ip_input).
  2863. 2007-04-17 Jonathan Larmour
  2864. * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
  2865. the difference between two u16_t's.
  2866. * sockets.h: FD_SETSIZE needs to match number of sockets, which is
  2867. MEMP_NUM_NETCONN in sockets.c right now.
  2868. 2007-04-12 Jonathan Larmour
  2869. * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
  2870. 2007-04-12 Kieran Mansley
  2871. * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
  2872. timer is reset to fix bug#19434, with help from Oleg Tyshev.
  2873. 2007-04-11 Simon Goldschmidt
  2874. * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
  2875. previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
  2876. pbuf.c: removed functions no needed any more (by etharp).
  2877. 2007-04-11 Kieran Mansley
  2878. * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
  2879. "Constant is long" warnings with 16bit compilers. Contributed by
  2880. avatar@mmlab.cse.yzu.edu.tw
  2881. 2007-04-05 Frédéric Bernon, Jonathan Larmour
  2882. * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
  2883. the mailbox is active". Now, the post is only done during a connect, and do_send,
  2884. do_write and do_join_leave_group don't do anything if a previous error was signaled.
  2885. 2007-04-03 Frédéric Bernon
  2886. * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
  2887. packets. See patch #5834.
  2888. 2007-03-30 Frédéric Bernon
  2889. * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
  2890. missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
  2891. 2007-03-30 Frédéric Bernon
  2892. * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
  2893. others environment defines (these were too "generic").
  2894. 2007-03-28 Frédéric Bernon
  2895. * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
  2896. result and can cause a crash. lwip_send now check netbuf_ref result.
  2897. 2007-03-28 Simon Goldschmidt
  2898. * sockets.c Remove "#include &lt;errno.h&gt;" from sockets.c to avoid multiple
  2899. definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
  2900. defined. This is the way it should have been already (looking at
  2901. doc/sys_arch.txt)
  2902. 2007-03-28 Kieran Mansley
  2903. * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
  2904. IP and TCP headers *and* physical link headers
  2905. 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
  2906. * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
  2907. to send some garbage. It is not a definitive solution, but the patch does solve
  2908. the problem for most cases.
  2909. 2007-03-22 Frédéric Bernon
  2910. * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
  2911. 2007-03-22 Frédéric Bernon
  2912. * api_lib.c: somes resources couldn't be freed if there was errors during
  2913. netconn_new_with_proto_and_callback.
  2914. 2007-03-22 Frédéric Bernon
  2915. * ethernetif.c: update netif-&gt;input calls to check return value. In older ports,
  2916. it's a good idea to upgrade them, even if before, there could be another problem
  2917. (access to an uninitialized mailbox).
  2918. 2007-03-21 Simon Goldschmidt
  2919. * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
  2920. by casting to unsigned).
  2921. 2007-03-21 Frédéric Bernon
  2922. * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn-&gt;mbox, NULL) calls from
  2923. api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
  2924. dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
  2925. Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
  2926. faster and more reliable communication between api_lib and tcpip.
  2927. 2007-03-21 Frédéric Bernon
  2928. * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
  2929. 2007-03-21 Frédéric Bernon
  2930. * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
  2931. 2007-03-21 Kieran Mansley
  2932. * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
  2933. IP and TCP headers
  2934. 2007-03-21 Kieran Mansley
  2935. * Fix all uses of pbuf_header to check the return value. In some
  2936. cases just assert if it fails as I'm not sure how to fix them, but
  2937. this is no worse than before when they would carry on regardless
  2938. of the failure.
  2939. 2007-03-21 Kieran Mansley
  2940. * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
  2941. comment out missing header include in icmp.c
  2942. 2007-03-20 Frédéric Bernon
  2943. * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
  2944. synchronized with memp.h.
  2945. 2007-03-20 Frédéric Bernon
  2946. * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
  2947. tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
  2948. network interfaces. Also fix a compiler warning.
  2949. 2007-03-20 Kieran Mansley
  2950. * udp.c: Only try and use pbuf_header() to make space for headers if
  2951. not a ROM or REF pbuf.
  2952. 2007-03-19 Frédéric Bernon
  2953. * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
  2954. and api_msg_post().
  2955. 2007-03-19 Frédéric Bernon
  2956. * Remove unimplemented "memp_realloc" function from memp.h.
  2957. 2007-03-11 Simon Goldschmidt
  2958. * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
  2959. memory corruption.
  2960. 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
  2961. * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
  2962. (missing `const' qualifier in socket functions), to get more compatible to
  2963. standard POSIX sockets.
  2964. 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
  2965. * sockets.c: Add asserts inside bind, connect and sendto to check input
  2966. parameters. Remove excessive set_errno() calls after get_socket(), because
  2967. errno is set inside of get_socket(). Move last sock_set_errno() inside
  2968. lwip_close.
  2969. 2007-03-09 Simon Goldschmidt
  2970. * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
  2971. was allocated too small.
  2972. 2007-03-06 Simon Goldschmidt
  2973. * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
  2974. the stack from concurrent access.
  2975. 2007-03-06 Frédéric Bernon, Dmitry Potapov
  2976. * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
  2977. call to "lwip_stats.link.recv++;" in low_level_input() &amp; ethernetif_input().
  2978. 2007-03-06 Simon Goldschmidt
  2979. * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
  2980. if IP_FRAG == 0 and IP_REASSEMBLY == 0
  2981. 2007-03-06 Frédéric Bernon, Simon Goldschmidt
  2982. * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
  2983. option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
  2984. Allow to do ARP processing for incoming packets inside tcpip_thread
  2985. (protecting ARP layer against concurrent access). You can also disable
  2986. old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
  2987. Older ports have to use tcpip_ethinput.
  2988. 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
  2989. * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
  2990. from pointer target type"
  2991. 2007-03-05 Frédéric Bernon
  2992. * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
  2993. ETHARP_TRUST_IP_MAC, review SO_REUSE)
  2994. 2007-03-04 Frédéric Bernon
  2995. * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
  2996. referenced.
  2997. 2007-03-04 Frédéric Bernon
  2998. * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
  2999. Dmitry Potapov).
  3000. The api_msg struct stay on the stack (not moved to netconn struct).
  3001. 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
  3002. * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
  3003. SYS_LIGHTWEIGHT_PROT=1 &amp; freeing PBUF_RAM when mem_sem is not available)
  3004. Also fixed cast warning in pbuf_alloc()
  3005. 2007-03-04 Simon Goldschmidt
  3006. * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
  3007. existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
  3008. 2007-03-03 Frédéric Bernon
  3009. * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
  3010. It is static, and never used in udp.c except udp_init().
  3011. 2007-03-02 Simon Goldschmidt
  3012. * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
  3013. tcpip_thread() to tcpip_init(). This way, raw API connections can be
  3014. initialized before tcpip_thread is running (e.g. before OS is started)
  3015. 2007-03-02 Frédéric Bernon
  3016. * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
  3017. interval.
  3018. 2007-02-28 Kieran Mansley
  3019. * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
  3020. outside the region of the pbuf by pbuf_header()
  3021. 2007-02-28 Kieran Mansley
  3022. * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
  3023. when supplied timeout is also non-zero
  3024. (STABLE-1.2.0)
  3025. 2006-12-05 Leon Woestenberg
  3026. * CHANGELOG: Mention STABLE-1.2.0 release.
  3027. ++ New features:
  3028. 2006-12-01 Christiaan Simons
  3029. * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
  3030. Note this is a workaround. Currently I have no other options left.
  3031. 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
  3032. * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
  3033. to include/lwip/opt.h.
  3034. * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
  3035. Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
  3036. * opt.h: Add above new options.
  3037. 2006-08-18 Christiaan Simons
  3038. * tcp_{in,out}.c: added SNMP counters.
  3039. * ipv4/ip.c: added SNMP counters.
  3040. * ipv4/ip_frag.c: added SNMP counters.
  3041. 2006-08-08 Christiaan Simons
  3042. * etharp.{c,h}: added etharp_find_addr() to read
  3043. (stable) ethernet/IP address pair from ARP table
  3044. 2006-07-14 Christiaan Simons
  3045. * mib_structs.c: added
  3046. * include/lwip/snmp_structs.h: added
  3047. * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
  3048. 2006-07-06 Christiaan Simons
  3049. * snmp/asn1_{enc,dec}.c added
  3050. * snmp/mib2.c added
  3051. * snmp/msg_{in,out}.c added
  3052. * include/lwip/snmp_asn1.h added
  3053. * include/lwip/snmp_msg.h added
  3054. * doc/snmp_agent.txt added
  3055. 2006-03-29 Christiaan Simons
  3056. * inet.c, inet.h: Added platform byteswap support.
  3057. Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
  3058. optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
  3059. ++ Bug fixes:
  3060. 2006-11-30 Christiaan Simons
  3061. * dhcp.c: Fixed false triggers of request_timeout.
  3062. 2006-11-28 Christiaan Simons
  3063. * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
  3064. 2006-10-11 Christiaan Simons
  3065. * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
  3066. Partially accepted patch #5449 for ANSI C compatibility / build fixes.
  3067. * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
  3068. identifier from 170 to 136 (bug #17574).
  3069. 2006-10-10 Christiaan Simons
  3070. * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
  3071. 2006-08-17 Christiaan Simons
  3072. * udp.c: Fixed bug #17200, added check for broadcast
  3073. destinations for PCBs bound to a unicast address.
  3074. 2006-08-07 Christiaan Simons
  3075. * api_msg.c: Flushing TCP output in do_close() (bug #15926).
  3076. 2006-06-27 Christiaan Simons
  3077. * api_msg.c: Applied patch for cold case (bug #11135).
  3078. In accept_function() ensure newconn-&gt;callback is always initialized.
  3079. 2006-06-15 Christiaan Simons
  3080. * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
  3081. facilitate printing of mem_size_t and u16_t statistics.
  3082. 2006-06-14 Christiaan Simons
  3083. * api_msg.c: Applied patch #5146 to handle allocation failures
  3084. in accept() by Kevin Lawson.
  3085. 2006-05-26 Christiaan Simons
  3086. * api_lib.c: Removed conn-&gt;sem creation and destruction
  3087. from netconn_write() and added sys_sem_new to netconn_new_*.
  3088. (STABLE-1_1_1)
  3089. 2006-03-03 Christiaan Simons
  3090. * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
  3091. access and added pbuf_alloc() return value checks.
  3092. 2006-01-01 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3093. * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
  3094. now handled by the checksum routine properly.
  3095. 2006-02-27 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3096. * pbuf.c: Fix alignment; pbuf_init() would not work unless
  3097. pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
  3098. 2005-12-20 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3099. * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
  3100. submitted by Mitrani Hiroshi.
  3101. 2005-12-15 Christiaan Simons
  3102. * inet.c: Disabled the added summing routine to preserve code space.
  3103. 2005-12-14 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3104. * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
  3105. Added Curt McDowell's optimized checksumming routine for future
  3106. inclusion. Need to create test case for unaliged, aligned, odd,
  3107. even length combination of cases on various endianess machines.
  3108. 2005-12-09 Christiaan Simons
  3109. * inet.c: Rewrote standard checksum routine in proper portable C.
  3110. 2005-11-25 Christiaan Simons
  3111. * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
  3112. * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
  3113. u32_t, s32_t typedefs. This solves most debug word-length assumes.
  3114. 2005-07-17 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3115. * inet.c: Fixed unaligned 16-bit access in the standard checksum
  3116. routine by Peter Jolasson.
  3117. * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
  3118. 2005-02-04 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3119. * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
  3120. * tcp_{out|in}.c: Applied patch fixing unaligned access.
  3121. 2005-01-04 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3122. * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
  3123. 2005-01-03 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3124. * udp.c: UDP pcb-&gt;recv() was called even when it was NULL.
  3125. (STABLE-1_1_0)
  3126. 2004-12-28 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3127. * etharp.*: Disabled multiple packets on the ARP queue.
  3128. This clashes with TCP queueing.
  3129. 2004-11-28 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3130. * etharp.*: Fixed race condition from ARP request to ARP timeout.
  3131. Halved the ARP period, doubled the period counts.
  3132. ETHARP_MAX_PENDING now should be at least 2. This prevents
  3133. the counter from reaching 0 right away (which would allow
  3134. too little time for ARP responses to be received).
  3135. 2004-11-25 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3136. * dhcp.c: Decline messages were not multicast but unicast.
  3137. * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
  3138. Do not try hard to insert arbitrary packet's source address,
  3139. etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
  3140. etharp_query() now always DOES call ETHARP_TRY_HARD so that users
  3141. querying an address will see it appear in the cache (DHCP could
  3142. suffer from this when a server invalidly gave an in-use address.)
  3143. * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
  3144. comparing network addresses (identifiers), not the network masks
  3145. themselves.
  3146. * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
  3147. IP address actually belongs to the network of the given interface.
  3148. 2004-11-24 Kieran Mansley &lt;kjm25@cam.ac.uk&gt;
  3149. * tcp.c: Increment pcb-&gt;snd_buf when ACK is received in SYN_SENT state.
  3150. (STABLE-1_1_0-RC1)
  3151. 2004-10-16 Kieran Mansley &lt;kjm25@cam.ac.uk&gt;
  3152. * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
  3153. even if one is already pending, if the rcv_wnd is above a threshold
  3154. (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
  3155. delayed ACK in order to open the window if the stack is only receiving data.
  3156. 2004-09-12 Kieran Mansley &lt;kjm25@cam.ac.uk&gt;
  3157. * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
  3158. 2004-08-20 Tony Mountifield &lt;tony@softins.co.uk&gt;
  3159. * etharp.c: Make sure the first pbuf queued on an ARP entry
  3160. is properly ref counted.
  3161. 2004-07-27 Tony Mountifield &lt;tony@softins.co.uk&gt;
  3162. * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
  3163. warnings about comparison.
  3164. * pbuf.c: Stopped compiler complaining of empty if statement
  3165. when LWIP_DEBUGF() empty. Closed an unclosed comment.
  3166. * tcp.c: Stopped compiler complaining of empty if statement
  3167. when LWIP_DEBUGF() empty.
  3168. * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
  3169. * inet.c: Added a couple of casts to quiet the compiler.
  3170. No need to test isascii(c) before isdigit(c) or isxdigit(c).
  3171. 2004-07-22 Tony Mountifield &lt;tony@softins.co.uk&gt;
  3172. * inet.c: Made data types consistent in inet_ntoa().
  3173. Added casts for return values of checksum routines, to pacify compiler.
  3174. * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
  3175. Small corrections to some debugging statements, to pacify compiler.
  3176. 2004-07-21 Tony Mountifield &lt;tony@softins.co.uk&gt;
  3177. * etharp.c: Removed spurious semicolon and added missing end-of-comment.
  3178. * ethernetif.c Updated low_level_output() to match prototype for
  3179. netif-&gt;linkoutput and changed low_level_input() similarly for consistency.
  3180. * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
  3181. of raw_recv() in raw.h and so avoid compiler error.
  3182. * sockets.c: Added trivial (int) cast to keep compiler happier.
  3183. * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
  3184. (STABLE-1_0_0)
  3185. ++ Changes:
  3186. 2004-07-05 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3187. * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
  3188. your cc.h file defines this either 1 or 0. If non-defined,
  3189. defaults to 1.
  3190. * .c: Added &lt;string.h&gt; and &lt;errno.h&gt; includes where used.
  3191. * etharp.c: Made some array indices unsigned.
  3192. 2004-06-27 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3193. * netif.*: Added netif_set_up()/down().
  3194. * dhcp.c: Changes to restart program flow.
  3195. 2004-05-07 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3196. * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
  3197. single-pass lookup for different candidates. Should exploit locality.
  3198. 2004-04-29 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3199. * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
  3200. * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
  3201. * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
  3202. the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
  3203. ++ Bug fixes:
  3204. 2004-04-27 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3205. * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
  3206. suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
  3207. non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
  3208. is to prefix the 14-bit Ethernet headers with two padding bytes.
  3209. 2004-04-23 Leon Woestenberg &lt;leon.woestenberg@gmx.net&gt;
  3210. * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
  3211. * etharp.c: Fixed the case where the packet that initiates the ARP request
  3212. is not queued, and gets lost. Fixed the case where the packets destination
  3213. address is already known; we now always queue the packet and perform an ARP
  3214. request.
  3215. (STABLE-0_7_0)
  3216. ++ Bug fixes:
  3217. * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
  3218. * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
  3219. * Fixed two possible NULL references in rare cases.
  3220. (STABLE-0_6_6)
  3221. ++ Bug fixes:
  3222. * Fixed DHCP which did not include the IP address in DECLINE messages.
  3223. ++ Changes:
  3224. * etharp.c has been hauled over a bit.
  3225. (STABLE-0_6_5)
  3226. ++ Bug fixes:
  3227. * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
  3228. * Packets sent from ARP queue had invalid source hardware address.
  3229. ++ Changes:
  3230. * Pass-by ARP requests do now update the cache.
  3231. ++ New features:
  3232. * No longer dependent on ctype.h.
  3233. * New socket options.
  3234. * Raw IP pcb support.
  3235. (STABLE-0_6_4)
  3236. ++ Bug fixes:
  3237. * Some debug formatters and casts fixed.
  3238. * Numereous fixes in PPP.
  3239. ++ Changes:
  3240. * DEBUGF now is LWIP_DEBUGF
  3241. * pbuf_dechain() has been re-enabled.
  3242. * Mentioned the changed use of CVS branches in README.
  3243. (STABLE-0_6_3)
  3244. ++ Bug fixes:
  3245. * Fixed pool pbuf memory leak in pbuf_alloc().
  3246. Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
  3247. Reported by Savin Zlobec.
  3248. * PBUF_POOL chains had their tot_len field not set for non-first
  3249. pbufs. Fixed in pbuf_alloc().
  3250. ++ New features:
  3251. * Added PPP stack contributed by Marc Boucher
  3252. ++ Changes:
  3253. * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
  3254. * ARP queueuing now queues the latest packet instead of the first.
  3255. This is the RFC recommended behaviour, but can be overridden in
  3256. lwipopts.h.
  3257. (0.6.2)
  3258. ++ Bugfixes:
  3259. * TCP has been fixed to deal with the new use of the pbuf-&gt;ref
  3260. counter.
  3261. * DHCP dhcp_inform() crash bug fixed.
  3262. ++ Changes:
  3263. * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
  3264. pbuf_refresh(). This has sped up pbuf pool operations considerably.
  3265. Implemented by David Haas.
  3266. (0.6.1)
  3267. ++ New features:
  3268. * The packet buffer implementation has been enhanced to support
  3269. zero-copy and copy-on-demand for packet buffers which have their
  3270. payloads in application-managed memory.
  3271. Implemented by David Haas.
  3272. Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
  3273. if an outgoing packet can be directly sent on the link, or perform
  3274. a copy-on-demand when necessary.
  3275. The application can safely assume the packet is sent, and the RAM
  3276. is available to the application directly after calling udp_send()
  3277. or similar function.
  3278. ++ Bugfixes:
  3279. * ARP_QUEUEING should now correctly work for all cases, including
  3280. PBUF_REF.
  3281. Implemented by Leon Woestenberg.
  3282. ++ Changes:
  3283. * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
  3284. to a '0.0.0.0' IP address.
  3285. * The packet buffer implementation is changed. The pbuf-&gt;ref counter
  3286. meaning has changed, and several pbuf functions have been
  3287. adapted accordingly.
  3288. * netif drivers have to be changed to set the hardware address length field
  3289. that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
  3290. See the contrib/ports/c16x cs8900 driver as a driver example.
  3291. * netif's have a dhcp field that must be initialized to NULL by the driver.
  3292. See the contrib/ports/c16x cs8900 driver as a driver example.
  3293. (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
  3294. logged in CVS but have not been explained here.
  3295. (0.5.3) Changes since version 0.5.2
  3296. ++ Bugfixes:
  3297. * memp_malloc(MEMP_API_MSG) could fail with multiple application
  3298. threads because it wasn't protected by semaphores.
  3299. ++ Other changes:
  3300. * struct ip_addr now packed.
  3301. * The name of the time variable in arp.c has been changed to ctime
  3302. to avoid conflicts with the time() function.
  3303. (0.5.2) Changes since version 0.5.1
  3304. ++ New features:
  3305. * A new TCP function, tcp_tmr(), now handles both TCP timers.
  3306. ++ Bugfixes:
  3307. * A bug in tcp_parseopt() could cause the stack to hang because of a
  3308. malformed TCP option.
  3309. * The address of new connections in the accept() function in the BSD
  3310. socket library was not handled correctly.
  3311. * pbuf_dechain() did not update the -&gt;tot_len field of the tail.
  3312. * Aborted TCP connections were not handled correctly in all
  3313. situations.
  3314. ++ Other changes:
  3315. * All protocol header structs are now packed.
  3316. * The -&gt;len field in the tcp_seg structure now counts the actual
  3317. amount of data, and does not add one for SYN and FIN segments.
  3318. (0.5.1) Changes since version 0.5.0
  3319. ++ New features:
  3320. * Possible to run as a user process under Linux.
  3321. * Preliminary support for cross platform packed structs.
  3322. * ARP timer now implemented.
  3323. ++ Bugfixes:
  3324. * TCP output queue length was badly initialized when opening
  3325. connections.
  3326. * TCP delayed ACKs were not sent correctly.
  3327. * Explicit initialization of BSS segment variables.
  3328. * read() in BSD socket library could drop data.
  3329. * Problems with memory alignment.
  3330. * Situations when all TCP buffers were used could lead to
  3331. starvation.
  3332. * TCP MSS option wasn't parsed correctly.
  3333. * Problems with UDP checksum calculation.
  3334. * IP multicast address tests had endianess problems.
  3335. * ARP requests had wrong destination hardware address.
  3336. ++ Other changes:
  3337. * struct eth_addr changed from u16_t[3] array to u8_t[6].
  3338. * A -&gt;linkoutput() member was added to struct netif.
  3339. * TCP and UDP -&gt;dest_* struct members where changed to -&gt;remote_*.
  3340. * ntoh* macros are now null definitions for big endian CPUs.
  3341. (0.5.0) Changes since version 0.4.2
  3342. ++ New features:
  3343. * Redesigned operating system emulation layer to make porting easier.
  3344. * Better control over TCP output buffers.
  3345. * Documenation added.
  3346. ++ Bugfixes:
  3347. * Locking issues in buffer management.
  3348. * Bugfixes in the sequential API.
  3349. * IP forwarding could cause memory leakage. This has been fixed.
  3350. ++ Other changes:
  3351. * Directory structure somewhat changed; the core/ tree has been
  3352. collapsed.
  3353. (0.4.2) Changes since version 0.4.1
  3354. ++ New features:
  3355. * Experimental ARP implementation added.
  3356. * Skeleton Ethernet driver added.
  3357. * Experimental BSD socket API library added.
  3358. ++ Bugfixes:
  3359. * In very intense situations, memory leakage could occur. This has
  3360. been fixed.
  3361. ++ Other changes:
  3362. * Variables named "data" and "code" have been renamed in order to
  3363. avoid name conflicts in certain compilers.
  3364. * Variable++ have in appliciable cases been translated to ++variable
  3365. since some compilers generate better code in the latter case.
  3366. (0.4.1) Changes since version 0.4
  3367. ++ New features:
  3368. * TCP: Connection attempts time out earlier than data
  3369. transmissions. Nagle algorithm implemented. Push flag set on the
  3370. last segment in a burst.
  3371. * UDP: experimental support for UDP-Lite extensions.
  3372. ++ Bugfixes:
  3373. * TCP: out of order segments were in some cases handled incorrectly,
  3374. and this has now been fixed. Delayed acknowledgements was broken
  3375. in 0.4, has now been fixed. Binding to an address that is in use
  3376. now results in an error. Reset connections sometimes hung an
  3377. application; this has been fixed.
  3378. * Checksum calculation sometimes failed for chained pbufs with odd
  3379. lengths. This has been fixed.
  3380. * API: a lot of bug fixes in the API. The UDP API has been improved
  3381. and tested. Error reporting and handling has been
  3382. improved. Logical flaws and race conditions for incoming TCP
  3383. connections has been found and removed.
  3384. * Memory manager: alignment issues. Reallocating memory sometimes
  3385. failed, this has been fixed.
  3386. * Generic library: bcopy was flawed and has been fixed.
  3387. ++ Other changes:
  3388. * API: all datatypes has been changed from generic ones such as
  3389. ints, to specified ones such as u16_t. Functions that return
  3390. errors now have the correct type (err_t).
  3391. * General: A lot of code cleaned up and debugging code removed. Many
  3392. portability issues have been fixed.
  3393. * The license was changed; the advertising clause was removed.
  3394. * C64 port added.
  3395. * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
  3396. Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
  3397. fixing bugs!
  3398. (0.4) Changes since version 0.3.1
  3399. * Memory management has been radically changed; instead of
  3400. allocating memory from a shared heap, memory for objects that are
  3401. rapidly allocated and deallocated is now kept in pools. Allocation
  3402. and deallocation from those memory pools is very fast. The shared
  3403. heap is still present but is used less frequently.
  3404. * The memory, memory pool, and packet buffer subsystems now support
  3405. 4-, 2-, or 1-byte alignment.
  3406. * "Out of memory" situations are handled in a more robust way.
  3407. * Stack usage has been reduced.
  3408. * Easier configuration of lwIP parameters such as memory usage,
  3409. TTLs, statistics gathering, etc. All configuration parameters are
  3410. now kept in a single header file "lwipopts.h".
  3411. * The directory structure has been changed slightly so that all
  3412. architecture specific files are kept under the src/arch
  3413. hierarchy.
  3414. * Error propagation has been improved, both in the protocol modules
  3415. and in the API.
  3416. * The code for the RTXC architecture has been implemented, tested
  3417. and put to use.
  3418. * Bugs have been found and corrected in the TCP, UDP, IP, API, and
  3419. the Internet checksum modules.
  3420. * Bugs related to porting between a 32-bit and a 16-bit architecture
  3421. have been found and corrected.
  3422. * The license has been changed slightly to conform more with the
  3423. original BSD license, including the advertisement clause.
  3424. (0.3.1) Changes since version 0.3
  3425. * Fix of a fatal bug in the buffer management. Pbufs with allocated
  3426. RAM never returned the RAM when the pbuf was deallocated.
  3427. * TCP congestion control, window updates and retransmissions did not
  3428. work correctly. This has now been fixed.
  3429. * Bugfixes in the API.
  3430. (0.3) Changes since version 0.2
  3431. * New and improved directory structure. All include files are now
  3432. kept in a dedicated include/ directory.
  3433. * The API now has proper error handling. A new function,
  3434. netconn_err(), now returns an error code for the connection in
  3435. case of errors.
  3436. * Improvements in the memory management subsystem. The system now
  3437. keeps a pointer to the lowest free memory block. A new function,
  3438. mem_malloc2() tries to allocate memory once, and if it fails tries
  3439. to free some memory and retry the allocation.
  3440. * Much testing has been done with limited memory
  3441. configurations. lwIP now does a better job when overloaded.
  3442. * Some bugfixes and improvements to the buffer (pbuf) subsystem.
  3443. * Many bugfixes in the TCP code:
  3444. - Fixed a bug in tcp_close().
  3445. - The TCP receive window was incorrectly closed when out of
  3446. sequence segments was received. This has been fixed.
  3447. - Connections are now timed-out of the FIN-WAIT-2 state.
  3448. - The initial congestion window could in some cases be too
  3449. large. This has been fixed.
  3450. - The retransmission queue could in some cases be screwed up. This
  3451. has been fixed.
  3452. - TCP RST flag now handled correctly.
  3453. - Out of sequence data was in some cases never delivered to the
  3454. application. This has been fixed.
  3455. - Retransmitted segments now contain the correct acknowledgment
  3456. number and advertised window.
  3457. - TCP retransmission timeout backoffs are not correctly computed
  3458. (ala BSD). After a number of retransmissions, TCP now gives up
  3459. the connection.
  3460. * TCP connections now are kept on three lists, one for active
  3461. connections, one for listening connections, and one for
  3462. connections that are in TIME-WAIT. This greatly speeds up the fast
  3463. timeout processing for sending delayed ACKs.
  3464. * TCP now provides proper feedback to the application when a
  3465. connection has been successfully set up.
  3466. * More comments have been added to the code. The code has also been
  3467. somewhat cleaned up.
  3468. (0.2) Initial public release.
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