BadVPN – Blame information for rev 1

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1 office 1 HISTORY
2  
3 (git master)
4  
5 * [Enter new changes just after this line - do not remove this line]
6  
7 ++ New features:
8  
9 2017-09-10: Joel Cunningham
10 * sockets: add readv() implementation (task #14610)
11  
12 2017-08-04: Simon Goldschmidt
13 * Clean up DHCP a bit: no need keep msg_out and msg_in as members in struct
14 dhcp - they are used in a call stack only (p_out and options_out_len as well)
15  
16 2017-08-04: Simon Goldschmidt
17 * pbuf: split pbuf_header(s16_t) into pbuf_add_header(size_t) and
18 pbuf_remove_header(size_t)
19  
20 2017-07-20: Douglas
21 * sys: deprecate sys_arch_sem_wait and sys_arch_mbox_fetch returning the
22 time waited rather they are now defined to return != SYS_ARCH_TIMEOUT
23 on success.
24  
25 2017-07-03: Jakub Schmidtke
26 * tcp: added support for sending TCP SACKs
27  
28 2017-06-20: Joel Cunningham
29 * netconn/netdb: added core locking support to netconn_gethostbyname (task #14523)
30  
31 2017-04-25: Simon Goldschmidt
32 * dhcp: added two hooks for adding and parsing user defined DHCP options
33  
34 2017-04-25: Joel Cunningham
35 * sockets: added CMSG and IP_PKTINFO for use with recvmsg (task #14247)
36  
37 2017-04-20: Joel Cunningham
38 * tcp: added Appropriate Byte Counting support (task #14128)
39  
40 2017-04-11: Simon Goldschmidt
41 * netconn/sockets: remove fatal error handling, fix asynchronous error handling,
42 ensure data before RST can be received
43  
44 2017-03-02: Joel Cunningham
45 * netconn/sockets: vectorize netconn_write for TCP, treating a vectored I/O write
46 atomically in regards to TCP segmentation (patch #8882)
47  
48 2017-03-02: Simon Goldschmidt
49 * netconn: added nonblocking accept/recv to netconn API (task #14396)
50  
51 2017-02-28: Simon Goldschmidt
52 * Added LWIP_SINGLE_NETIF for small targets with only one netif
53  
54 2017-02-17: Simon Goldschmidt
55 * Improved DNS_LOCAL_HOSTLIST interface
56  
57 2017-02-10: David van Moolenbroek
58 * Implement UDP and RAW multicast support for IPv6 (core API, not netconn/sockets)
59  
60 2017-02-10: Simon Goldschmidt
61 * tcp_close does not fail on memory error (instead, FIN is sent from tcp_tmr)
62  
63 2017-02-04: David van Moolenbroek
64 - IPv6 scopes support
65  
66 2017-01-20: Joel Cunningham
67 * sockets: add interface name/index APIs (task #14314)
68  
69 2017-01-08: David van Moolenbroek
70 * Extensions to RAW API (patch #9208)
71 - Connected RAW PCBs
72 - Add raw_sendto_if_src()
73 - Support IP_HDRINCL socket option
74  
75 ++ Bugfixes:
76  
77 2017-09-12: David Lockyer
78 * select: allocate select_cb from memp for LWIP_MPU_COMPATIBLE = 1 (bug #51990)
79  
80 2017-09-11: Simon Goldschmidt
81 * tcp_in.c: fix bug #51937 (leaking tcp_pcbs on passive close with unacked data)
82  
83 2017-08-11: Joel Cunningham
84 * lwip_itoa: fix converting the number 0 (previously converted to '\0') (bug #51729)
85  
86 2017-08-08: Dirk Ziegelmeier
87 * ip4_route_src: parameter order is reversed: ip4_route_src(dest, src) -> ip4_route_src(src, dest)
88 to make parameter order consistent with other ip*_route*() functions
89 Same also applies to LWIP_HOOK_IP4_ROUTE_SRC() parameter order.
90  
91 2017-08-04: Joel Cunningham
92 * tcp: re-work persist timer to fully close window (details in bug #50837)
93  
94 2017-07-26: Simon Goldschmidt
95 * snmp_msg.c: fix bug #51578 (SNMP failed to decode some values on non 32bit platforms)
96  
97 2017-07-20: Simon Goldschmidt
98 * compatibility headers: moved from 'src/include/posix' to 'src/include/compat/posix',
99 'src/include/compat/stdc' etc.
100  
101 2017-05-09: Joel Cunningham
102 * tcp: add zero-window probe timeout (bug #50837)
103  
104 2017-04-11: Simon Goldschmidt
105 * sockets.c: task #14420 (Remove sys_sem_signal from inside SYS_ARCH_PROTECT
106 crit section) done for LWIP_TCPIP_CORE_LOCKING==1
107  
108 2017-03-08: Joel Cunningham
109 * tcp: initialize ssthresh to TCP_SND_BUF (bug #50476)
110  
111 2017-03-01: Simon Goldschmidt
112 * httpd: LWIP_HTTPD_POST_MANUAL_WND: fixed double-free when httpd_post_data_recved
113 is called nested from httpd_post_receive_data() (bug #50424)
114  
115 2017-02-28: David van Moolenbroek/Simon Goldschmidt
116 * tcp: fixed bug #50418: LWIP_EVENT_API: fix invalid calbacks for SYN_RCVD pcb
117  
118 2017-02-24: Simon Goldschmidt
119 * sockets.c: fixed close race conditions in lwip_select (for LWIP_NETCONN_FULLDUPLEX)
120  
121 2017-02-24: Simon Goldschmidt
122 * sockets.c: fixed that select ignored invalid/not open sockets in the fd_sets (bug #50392)
123  
124 2017-02-16: Simon Goldschmidt
125 * LWIP_NETCONN_FULLDUPLEX: fixed shutdown during write (bug #50274)
126  
127 2017-01-18: Dirk Ziegelmeier
128 * Fix zero-copy RX, see bug bug #50064. PBUF_REFs were not supported as ARP requests.
129  
130 2017-01-11: David van Moolenbroek
131 * Lots of IPv6 related fixes and improvements
132  
133 (STABLE-2.0.1)
134  
135 ++ New features:
136  
137 2016-12-31: Simon Goldschmidt
138 * tcp.h/.c: added function tcp_listen_with_backlog_and_err() to get the error
139 reason when listening fails (bug #49861)
140  
141 2016-12-20: Erik Andersen
142 * Add MQTT client
143  
144 2016-12-14: Jan Breuer:
145 * opt.h, ndc.h/.c: add support for RDNSS option (as per RFC 6106)
146  
147 2016-12-14: David van Moolenbroek
148 * opt.h, nd6.c: Added LWIP_HOOK_ND6_GET_GW()
149  
150 2016-12-09: Dirk Ziegelmeier
151 * ip6_frag.c: Implemented support for LWIP_NETIF_TX_SINGLE_PBUF
152  
153 2016-12-09: Simon Goldschmidt
154 * dns.c: added one-shot multicast DNS queries
155  
156 2016-11-24: Ambroz Bizjak, David van Moolenbroek
157 * tcp_out.c: Optimize passing contiguous nocopy buffers to tcp_write (bug #46290)
158  
159 2016-11-16: Dirk Ziegelmeier
160 * sockets.c: added support for IPv6 mapped IPv4 addresses
161  
162 ++ Bugfixes:
163  
164 2016-12-16: Thomas Mueller
165 * api_lib.c: fixed race condition in return value of netconn_gethostbyname()
166 (and thus also lwip_gethostbyname/_r() and lwip_getaddrinfo())
167  
168 2016-12-15: David van Moolenbroek
169 * opt.h, tcp: added LWIP_HOOK_TCP_ISN() to implement less predictable initial
170 sequence numbers (see contrib/addons/tcp_isn for an example implementation)
171  
172 2016-12-05: Dirk Ziegelmeier
173 * fixed compiling with IPv4 disabled (IPv6 only case)
174  
175 2016-11-28: Simon Goldschmidt
176 * api_lib.c: fixed bug #49725 (send-timeout: netconn_write() can return
177 ERR_OK without all bytes being written)
178  
179 2016-11-28: Ambroz Bizjak
180 * tcpi_in.c: fixed bug #49717 (window size in received SYN and SYN-ACK
181 assumed scaled)
182  
183 2016-11-25: Simon Goldschmidt
184 * dhcp.c: fixed bug #49676 (Possible endless loop when parsing dhcp options)
185  
186 2016-11-23: Dirk Ziegelmeier
187 * udp.c: fixed bug #49662: multicast traffic is now only received on a UDP PCB
188 (and therefore on a UDP socket/netconn) when the PCB is bound to IP_ADDR_ANY
189  
190 2016-11-16: Dirk Ziegelmeier
191 * *: Fixed dual-stack behaviour, IPv6 mapped IPv4 support in socket API
192  
193 2016-11-14: Joel Cunningham
194 * tcp_out.c: fixed bug #49533 (start persist timer when unsent seg can't fit
195 in window)
196  
197 2016-11-16: Roberto Barbieri Carrera
198 * autoip.c: fixed bug #49610 (sometimes AutoIP fails to reuse the same address)
199  
200 2016-11-11: Dirk Ziegelmeier
201 * sockets.c: fixed bug #49578 (dropping multicast membership does not work
202 with LWIP_SOCKET_OFFSET)
203  
204 (STABLE-2.0.0)
205  
206 ++ New features:
207  
208 2016-07-27: Simon Goldschmidt
209 * opt.h, timeouts.h/.c: added LWIP_TIMERS_CUSTOM to override the default
210 implementation of timeouts
211  
212 2016-07-xx: Dirk Ziegelmeier
213 * Large overhaul of doxygen documentation
214  
215 2016-04-05: Simon Goldschmidt
216 * timers.h/.c: prepare for overriding current timeout implementation: all
217 stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
218  
219 2016-03-23: Simon Goldschmidt
220 * tcp: call accept-callback with ERR_MEM when allocating a pcb fails on
221 passive open to inform the application about this error
222 ATTENTION: applications have to handle NULL pcb in accept callback!
223  
224 2016-02-22: Ivan Delamer
225 * Initial 6LoWPAN support
226  
227 2016-02-XX to 2016-03-XX: Dirk Ziegelmeier
228 * Cleanup TCPIP thread sync methods in a way that it is possibe to use them
229 in arbitrary code that needs things to be done in TCPIP thread. Used to
230 decouple netconn, netif, ppp and 6LoWPAN from LWIP core.
231  
232 2016-02-XX: Dirk Ziegelmeier
233 * Implement dual-stack support in RAW, UDP and TCP. Add new IP address
234 type IPADDR_ANY_TYPE for this. Netconn/Socket API: Dual-stack is
235 automatically supported when an IPv6 netconn/socket is created.
236  
237 2015-12-26: Martin Hentschel and Dirk Ziegelmeier
238 * Rewrite SNMP agent. SNMPv2c + MIB compiler.
239  
240 2015-11-12: Dirk Ziegelmeier
241 * Decouple SNMP stack from lwIP core and move stack to apps/ directory.
242 Breaking change: Users have to call snmp_init() now!
243  
244 2015-11-12: Dirk Ziegelmeier
245 * Implement possibility to declare private memory pools. This is useful to
246 decouple some apps from the core (SNMP stack) or make contrib app usage
247 simpler (httpserver_raw)
248  
249 2015-10-09: Simon Goldschmidt
250 * started to move "private" header files containing implementation details to
251 "lwip/priv/" include directory to seperate the API from the implementation.
252  
253 2015-10-07: Simon Goldschmidt
254 * added sntp client as first "supported" application layer protocol implementation
255 added 'apps' folder
256  
257 2015-09-30: Dirk Ziegelmeier
258 * snmp_structs.h, mib_structs.c, mib2.c: snmp: fixed ugly inheritance
259 implementation by aggregating the "base class" (struct mib_node) in all
260 derived node classes to get more type-safe code
261  
262 2015-09-23: Simon Goldschmidt
263 * netif.h/.c, nd6.c: task #13729: Convert netif addresses (IPv4 & IPv6) to
264 ip_addr_t (so they can be used without conversion/temporary storage)
265  
266 2015-09-08: Dirk Ziegelmeier
267 * snmp: Separate mib2 counter/table callbacks from snmp agent. This both cleans
268 up the code and should allow integration of a 3rd party agent/mib2. Simple
269 counters are kept in MIB2_STATS, tree/table change function prototypes moved to
270 snmp_mib2.h.
271  
272 2015-09-03: Simon Goldschmidt
273 * opt.h, dns.h/.c: DNS/IPv6: added support for AAAA records
274  
275 2015-09-01: Simon Goldschmidt
276 * task #12178: hardware checksum capabilities can be configured per netif
277 (use NETIF_SET_CHECKSUM_CTRL() in your netif's init function)
278  
279 2015-08-30: Simon Goldschmidt
280 * PBUF_REF with "custom" pbufs is now supported for RX pbufs (see pcapif in
281 contrib for an example, LWIP_SUPPORT_CUSTOM_PBUF is required)
282  
283 2015-08-30: Simon Goldschmidt
284 * support IPv4 source based routing: define LWIP_HOOK_IP4_ROUTE_SRC to point
285 to a routing function
286  
287 2015-08-05: Simon Goldschmidt
288 * many files: allow multicast socket options IP_MULTICAST_TTL, IP_MULTICAST_IF
289 and IP_MULTICAST_LOOP to be used without IGMP
290  
291 2015-04-24: Simon Goldschmidt
292 * dhcp.h/c, autoip.h/.c: added functions dhcp/autoip_supplied_address() to
293 check for the source of address assignment (replacement for NETIF_FLAG_DHCP)
294  
295 2015-04-10: Simon Goldschmidt
296 * many files: task #13480: added LWIP_IPV4 define - IPv4 can be disabled,
297 leaving an IPv6-only stack
298  
299 2015-04-09: Simon Goldschmidt
300 * nearly all files: task #12722 (improve IPv4/v6 address handling): renamed
301 ip_addr_t to ip4_addr_t, renamed ipX_addr_t to ip_addr_t and added IP
302 version; ip_addr_t is used for all generic IP addresses for the API,
303 ip(4/6)_addr_t are only used internally or when initializing netifs or when
304 calling version-related functions
305  
306 2015-03-24: Simon Goldschmidt
307 * opt.h, ip4_addr.h, ip4.c, ip6.c: loopif is not required for loopback traffic
308 any more but passed through any netif (ENABLE_LOOPBACK has to be enabled)
309  
310 2015-03-23: Simon Goldschmidt
311 * opt.h, etharp.c: with ETHARP_TABLE_MATCH_NETIF== 1, duplicate (Auto)-IP
312 addresses on multiple netifs should now be working correctly (if correctly
313 addressed by routing, that is)
314  
315 2015-03-23: Simon Goldschmidt
316 * etharp.c: Stable etharp entries that are about to expire are now refreshed
317 using unicast to prevent unnecessary broadcast. Only if no answer is received
318 after 15 seconds, broadcast is used.
319  
320 2015-03-06: Philip Gladstone
321 * netif.h/.c: patch #8359 (Provide utility function to add an IPv6 address to
322 an interface)
323  
324 2015-03-05: Simon Goldschmidt
325 * netif.c, ip4.c, dhcp.c, autoip.c: fixed bug #37068 (netif up/down handling
326 is unclear): correclty separated administrative status of a netif (up/down)
327 from 'valid address' status
328 ATTENTION: netif_set_up() now always has to be called, even when dhcp/autoip
329 is used!
330  
331 2015-02-26: patch by TabascoEye
332 * netif.c, udp.h/.c: fixed bug #40753 (re-bind UDP pcbs on change of IP address)
333  
334 2015-02-22: chrysn, Simon Goldschmidt
335 * *.*: Changed nearly all functions taking 'ip(X)_addr_t' pointer to take
336 const pointers (changed user callbacks: raw_recv_fn, udp_recv_fn; changed
337 port callbacks: netif_output_fn, netif_igmp_mac_filter_fn)
338  
339 2015-02-19: Ivan Delamer
340 * netif.h, dhcp.c: Removed unused netif flag for DHCP. The preferred way to evaluate
341 if DHCP is active is through netif->dhcp field.
342  
343 2015-02-19: Ivan Delamer
344 * netif.h, slipif.c, ppp.c: Removed unused netif flag for point to point connections
345  
346 2015-02-18: Simon Goldschmidt
347 * api_lib.c: fixed bug #37958 "netconn API doesn't handle correctly
348 connections half-closed by peer"
349  
350 2015-02-18: Simon Goldschmidt
351 * tcp.c: tcp_alloc() prefers killing CLOSING/LAST_ACK over active connections
352 (see bug #39565)
353  
354 2015-02-16: Claudius Zingerli, Sergio Caprile
355 * opt.h, dhcp.h/.c: patch #8361 "Add support for NTP option in DHCP"
356  
357 2015-02-14: Simon Goldschmidt
358 * opt.h, snmp*: added support for write-access community and dedicated
359 community for sending traps
360  
361 2015-02-13: Simon Goldschmidt
362 * opt.h, memp.c: added hook LWIP_HOOK_MEMP_AVAILABLE() to get informed when
363 a memp pool was empty and an item is now available
364  
365 2015-02-13: Simon Goldschmidt
366 * opt.h, pbuf.h/.c, etharp.c: Added the option PBUF_LINK_ENCAPSULATION_HLEN to
367 allocate additional header space for TX on netifs requiring additional headers
368  
369 2015-02-12: chrysn
370 * timers.h/.c: introduce sys_timeouts_sleeptime (returns the time left before
371 the next timeout is due, for NO_SYS==1)
372  
373 2015-02-11: Nick van Ijzendoorn
374 * opt.h, sockets.h/c: patch #7702 "Include ability to increase the socket number
375 with defined offset"
376  
377 2015-02-11: Frederick Baksik
378 * opt.h, def.h, others: patch #8423 "arch/perf.h" should be made an optional item
379  
380 2015-02-11: Simon Goldschmidt
381 * api_msg.c, opt.h: started to implement fullduplex sockets/netconns
382 (note that this is highly unstable yet!)
383  
384 2015-01-17: Simon Goldschmidt
385 * api: allow enabling socket API without (public) netconn API - netconn API is
386 still used by sockets, but keeping it private (static) should allow better
387 compiler optimizations
388  
389 2015-01-16: Simon Goldschmidt
390 * tcp_in.c: fixed bug #20506 "Initial congestion window is very small" again
391 by implementing the calculation formula from RFC3390
392  
393 2014-12-10: Simon Goldschmidt
394 * api: added option LWIP_NETCONN_SEM_PER_THREAD to use a semaphore per thread
395 instead of using one per netconn and per select call
396  
397 2014-12-08: Simon Goldschmidt
398 * ip6.h: fixed bug #43778: IPv6 header version not set on 16-bit platform
399 (macro IP6H_VTCFL_SET())
400  
401 2014-12-08: Simon Goldschmidt
402 * icmp.c, ip4.c, pbuf.c, udp.c, pbuf.h: task #11472 Support PBUF_REF for RX
403 (IPv6 and IPv4/v6 reassembly might not work yet)
404  
405 2014-11-06: Simon Goldschmidt
406 * sockets.c/.h, init.c: lwip_socket_init() is not needed any more
407 -> compatibility define
408  
409 2014-09-16: Simon Goldschmidt
410 * dns.c, opt.h: reduced ram usage by parsing DNS responses in place
411  
412 2014-09-16: Simon Goldschmidt
413 * pbuf.h/.c: added pbuf_take_at() and pbuf_put_at()
414  
415 2014-09-15: Simon Goldschmidt
416 * dns.c: added source port randomization to make the DNS client more robust
417 (see bug #43144)
418  
419 2013-09-02: Simon Goldschmidt
420 * arch.h and many other files: added optional macros PACK_STRUCT_FLD_8() and
421 PACK_STRUCT_FLD_S() to prevent gcc 4 from warning about struct members that
422 do not need packing
423  
424 2013-08-19: Simon Goldschmidt
425 * netif.h: bug #42998: made NETIF_MAX_HWADDR_LEN overridable for some special
426 networks
427  
428 2013-03-17: Simon Goldschmidt (patch by Ghobad Emadi)
429 * opt.h, etharp.c: Added LWIP_HOOK_ETHARP_GET_GW to implement IPv4 routing with
430 multiple gateways
431  
432 2013-04-20: Fatih Asici
433 * opt.h, etharp.h/.c: patch #7993: Added support for transmitting packets
434 with VLAN headers via hook function LWIP_HOOK_VLAN_SET and to check them
435 via hook function LWIP_HOOK_VLAN_CHECK
436  
437 2014-02-20: Simon Goldschmidt (based on patch by Artem Pisarenko)
438 * patch #7885: modification of api modules to support FreeRTOS-MPU
439 (don't pass stack-pointers to other threads)
440  
441 2014-02-05: Simon Goldschmidt (patch by "xtian" and "alex_ab")
442 * patch #6537/#7858: TCP window scaling support
443  
444 2014-01-17: Jiri Engelthaler
445 * icmp, icmp6, opt.h: patch #8027: Completed HW checksuming for IPv4 and
446 IPv6 ICMP's
447  
448 2012-08-22: Sylvain Rochet
449 * New PPP stack for lwIP, developed in ppp-new branch.
450 Based from pppd 2.4.5, released 2009-11-17, with huge changes to match
451 code size and memory requirements for embedded devices, including:
452 - Gluing together the previous low-level PPP code in lwIP to pppd 2.4.5, which
453 is more or less what pppd sys-* files are, so that we get something working
454 using the unix port.
455 - Merged some patchs from lwIP Git repository which add interesting features
456 or fix bugs.
457 - Merged some patchs from Debian pppd package which add interesting features
458 or fix bugs.
459 - Ported PPP timeout handling to the lwIP timers system
460 - Disabled all the PPP code using filesystem access, replaced in necessary cases
461 to configuration variables.
462 - Disabled all the PPP code forking processes.
463 - Removed IPX support, lwIP does not support IPX.
464 - Ported and improved random module from the previous PPP port.
465 - Removed samba TDB (file-driven database) usage, because it needs a filesystem.
466 - MS-CHAP required a DES implementation, we added the latest PolarSSL DES
467 implementation which is under a BSD-ish license.
468 - Also switched to PolarSSL MD4,MD5,SHA1 implementations, which are meant to be
469 used in embedded devices with reduced memory footprint.
470 - Removed PPP configuration file parsing support.
471 - Added macro definition EAP_SUPPORT to make EAP support optional.
472 - Added macro definition CHAP_SUPPORT to make CHAP support optional.
473 - Added macro definition MSCHAP_SUPPORT to make MSCHAP support optional.
474 - Added macro definition PAP_SUPPORT to make PAP support optional.
475 - Cleared all Linux syscall calls.
476 - Disabled demand support using a macro, so that it can be ported later.
477 - Disabled ECP support using a macro, so that it can be ported later.
478 - Disabled CCP support using a macro, so that it can be ported later.
479 - Disabled CBCP support using a macro, so that it can be ported later.
480 - Disabled LQR support using a macro, so that it can be ported later.
481 - Print packet debug feature optional, through PRINTPKT_SUPPORT
482 - Removed POSIX signal usage.
483 - Fully ported PPPoS code from the previous port.
484 - Fully ported PPPoE code from the previous port.
485 - Fully ported VJ compression protocol code from the previous port.
486 - Removed all malloc()/free() use from PPP, replaced by stack usage or PBUF.
487 - Disabled PPP server support using a macro, so that it can be ported later.
488 - Switched all PPP debug to lwIP debug system.
489 - Created PPP Control Block (PPP PCB), removed PPP unit integer everywhere,
490 removed all global variables everywhere, did everything necessary for
491 the PPP stack to support more than one PPP session (pppd only support
492 one session per process).
493 - Removed the statically allocated output buffer, now using PBUF.
494 - Improved structure size of all PPP modules, deep analyze of code to reduce
495 variables size to the bare minimum. Switched all boolean type (char type in
496 most architecture) to compiler generated bitfields.
497 - Added PPP IPv6 support, glued lwIP IPv6 support to PPP.
498 - Now using a persistent netif interface which can then be used in lwIP
499 functions requiring a netif.
500 - Now initializing PPP in lwip_init() function.
501 - Reworked completely the PPP state machine, so that we don't end up in
502 anymore in inconsistent state, especially with PPPoE.
503 - Improved the way we handle PPP reconnection after disconnect, cleaning
504 everything required so that we start the PPP connection again from a
505 clean state.
506 - Added PPP holdoff support, allow the lwIP user to wait a little bit before
507 reconnecting, prevents connection flood, especially when using PPPoL2TP.
508 - Added PPPoL2TP LAC support (a.k.a. UDP tunnels), adding a VPN client
509 feature to lwIP, L2TP being a widely used tunnel protocol.
510 - Switched all used PPP types to lwIP types (u8t, u16t, u32t, ...)
511 - Added PPP API "sequential" thread-safe API, based from NETIFAPI.
512  
513 2011-07-21: Simon Goldschmidt
514 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
515 ioctl/FIONREAD return the size of the next pending datagram.
516  
517 2011-05-25: Simon Goldschmidt
518 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
519 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
520 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
521 code so that the code is more readable.
522  
523 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
524 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
525 Ivan! (this is work in progress: we're just post release anyway :-)
526  
527  
528 ++ Bugfixes:
529  
530 2016-08-23: Simon Goldschmidt
531 * etharp: removed ETHARP_TRUST_IP_MAC since it is insecure and we don't need
532 it any more after implementing unicast ARP renewal towards arp entry timeout
533  
534 2016-07-20: Simon Goldschmidt
535 * memp.h/.c: fixed bug #48442 (memp stats don't work for MEMP_MEM_MALLOC)
536  
537 2016-07-21: Simon Goldschmidt (patch by Ambroz Bizjak)
538 * tcp_in.c, tcp_out.c: fixed bug #48543 (TCP sent callback may prematurely
539 report sent data when only part of a segment is acked) and don't include
540 SYN/FIN in snd_buf counter
541  
542 2016-07-19: Simon Goldschmidt
543 * etharp.c: fixed bug #48477 (ARP input packet might update static entry)
544  
545 2016-07-11: Simon Goldschmidt
546 * tcp_in.c: fixed bug #48476 (TCP sent callback called wrongly due to picking
547 up old pcb->acked
548  
549 2016-06-30: Simon Goldschmidt (original patch by Fabian Koch)
550 * tcp_in.c: fixed bug #48170 (Vulnerable to TCP RST spoofing)
551  
552 2016-05-20: Dirk Ziegelmeier
553 * sntp.h/.c: Fix return value of sntp_getserver() call to return a pointer
554  
555 2016-04-05: Simon Goldschmidt (patch by Philip Gladstone)
556 * udp.c: patch #8358: allow more combinations of listening PCB for IPv6
557  
558 2016-04-05: Simon Goldschmidt
559 * netconn/socket API: fixed bug# 43739 (Accept not reporting errors about
560 aborted connections): netconn_accept() returns ERR_ABRT (sockets: ECONNABORTED)
561 for aborted connections, ERR_CLSD (sockets: EINVAL) if the listening netconn
562 is closed, which better seems to follow the standard.
563  
564 2016-03-23: Florent Matignon
565 * dhcp.c: fixed bug #38203: DHCP options are not recorded in all DHCP ack messages
566  
567 2016-03-22: Simon Goldschmidt
568 * tcp: changed accept handling to be done internally: the application does not
569 have to call tcp_accepted() any more. Instead, when delaying accept (e.g. sockets
570 do), call tcp_backlog_delayed()/tcp_backlog_accepted() (fixes bug #46696)
571  
572 2016-03-22: Simon Goldschmidt
573 * dns.c: ignore dns response parsing errors, only abort resolving for correct
574 responses or error responses from correct server (bug #47459)
575  
576 2016-03-17: Simon Goldschmidt
577 * api_msg.c: fixed bug #47448 (netconn/socket leak if RST is received during close)
578  
579 2016-03-17: Joel Cunningham
580 * api_msg.c: don't fail closing a socket/netconn when failing to allocate the
581 FIN segment; blocking the calling thread for a while is better than risking
582 leaking a netconn/socket (see bug #46701)
583  
584 2016-03-16: Joel Cunningham
585 * tcp_out.c: reset rto timer on fast retransmission
586  
587 2016-03-16: Deomid Ryabkov
588 * tcp_out.c: fixed bug #46384 Segment size calculation bug with MSS != TCP_MSS
589  
590 2016-03-05: Simon Goldschmidt
591 * err.h/.c, sockets.c: ERR_IF is not necessarily a fatal error
592  
593 2015-11-19: fix by Kerem Hadimli
594 * sockets.c: fixed bug #46471: lwip_accept() leaks socket descriptors if new
595 netconn was already closed because of peer behavior
596  
597 2015-11-12: fix by Valery Ushakov
598 * tcp_in.c: fixed bug #46365 tcp_accept_null() should call tcp_abort()
599  
600 2015-10-02: Dirk Ziegelmeier/Simon Goldschmidt
601 * snmp: cleaned up snmp structs API (fixed race conditions from bug #46089,
602 reduce ram/rom usage of tables): incompatible change for private MIBs
603  
604 2015-09-30: Simon Goldschmidt
605 * ip4_addr.c: fixed bug #46072: ip4addr_aton() does not check the number range
606 of all address parts
607  
608 2015-08-28: Simon Goldschmidt
609 * tcp.c, tcp_in.c: fixed bug #44023: TCP ssthresh value is unclear: ssthresh
610 is set to the full send window for active open, too, and is updated once
611 after SYN to ensure the correct send window is used
612  
613 2015-08-28: Simon Goldschmidt
614 * tcp: fixed bug #45559: Window scaling casts u32_t to u16_t without checks
615  
616 2015-08-26: Simon Goldschmidt
617 * ip6_frag.h/.c: fixed bug bug #41009: IPv6 reassembly broken on 64-bit platforms:
618 define IPV6_FRAG_COPYHEADER==1 on these platforms to copy the IPv6 header
619 instead of referencing it, which gives more room for struct ip6_reass_helper
620  
621 2015-08-25: Simon Goldschmidt
622 * sockets.c: fixed bug #45827: recvfrom: TCP window is updated with MSG_PEEK
623  
624 2015-08-20: Manoj Kumar
625 * snmp_msg.h, msg_in.c: fixed bug #43790: Sending octet string of Length >255
626 from SNMP agent
627  
628 2015-08-19: Jens Nielsen
629 * icmp.c, ip4.c, tcp_in.c, udp.c, raw.c: fixed bug #45120: Broadcast & multiple
630 interfaces handling
631  
632 2015-08-19: Simon Goldschmidt (patch by "Sandra")
633 * dns.c: fixed bug #45004: dns response without answer might be discarded
634  
635 2015-08-18: Chrysn
636 * timers.c: patch #8704 fix sys_timeouts_sleeptime function
637  
638 2015-07-01: Erik Ekman
639 * puf.c: fixed bug #45454 (pbuf_take_at() skips write and returns OK if offset
640 is at start of pbuf in chain)
641  
642 2015-05-19: Simon Goldschmidt
643 * dhcp.h/.c: fixed bugs #45140 and #45141 (dhcp was not stopped correctly after
644 fixing bug #38204)
645  
646 2015-03-21: Simon Goldschmidt (patch by Homyak)
647 * tcp_in.c: fixed bug #44766 (LWIP_WND_SCALE: tcphdr->wnd was not scaled in
648 two places)
649  
650 2015-03-21: Simon Goldschmidt
651 * tcp_impl.h, tcp.c, tcp_in.c: fixed bug #41318 (Bad memory ref in tcp_input()
652 after tcp_close())
653  
654 2015-03-21: Simon Goldschmidt
655 * tcp_in.c: fixed bug #38468 (tcp_sent() not called on half-open connection for
656 data ACKed with the same ack as FIN)
657  
658 2015-03-21: Simon Goldschmidt (patch by Christoffer Lind)
659 * dhcp.h/.c: fixed bug #38204 (DHCP lease time not handled correctly)
660  
661 2015-03-20: Simon Goldschmidt
662 * dhcp.c: fixed bug #38714 (Missing option and client address in DHCPRELEASE message)
663  
664 2015-03-19: Simon Goldschmidt
665 * api.h, tcpip.h, api_lib.c, api_msg.c: fixed race conditions in assigning
666 netconn->last_err (fixed bugs #38121 and #37676)
667  
668 2015-03-09: Simon Goldschmidt
669 * ip4.c: fixed the IPv4 part of bug #43904 (ip_route() must detect linkup status)
670  
671 2015-03-04: Simon Goldschmidt
672 * nd6.c: fixed bug #43784 (a host should send at least one Router Solicitation)
673  
674 2015-03-04: Valery Ushakov
675 * ip6.c: fixed bug #41094 (Byte-order bug in IPv6 fragmentation header test)
676  
677 2015-03-04: Zach Smith
678 * nd6.c: fixed bug #38153 (nd6_input() byte order issues)
679  
680 2015-02-26: Simon Goldschmidt
681 * netif.c, tcp.h/.c: fixed bug #44378 (TCP connections are not aborted on netif
682 remove)
683  
684 2015-02-25: Simon Goldschmidt
685 * ip4.c, etharp.c: fixed bug #40177 (System hangs when dealing with corrupted
686 packets), implemented task #12357 (Ensure that malicious packets don't
687 assert-fail): improved some pbuf_header calls to not assert-fail.
688  
689 2015-02-25: patch by Joel Cunningham
690 * udp.h/.c, sockets.c: fixed bug #43028 (IP_MULTICAST_TTL affects unicast
691 datagrams)
692  
693 2015-02-25: patch by Greg Renda
694 * ip4_frag.c: fixed bug #38210 (ip reassembly while remove oldest datagram)
695  
696 2015-02-25: Simon Goldschmidt
697 * sockets.c: fixed bug #38165 (socket with mulicast): ensure igmp membership
698 are dropped when socket (not netconn!) is closed.
699  
700 2015-02-25: Simon Goldschmidt
701 * ip4.h/.c, udp.c: fixed bug #38061 (wrong multicast routing in IPv4) by
702 adding an optional default netif for multicast routing
703  
704 2015-02-25: Simon Goldschmidt
705 * netconn API: fixed that netconn_connect still used message passing for
706 LWIP_TCPIP_CORE_LOCKING==1
707  
708 2015-02-22: patch by Jens Nielsen
709 * icmp.c: fixed bug #38803 (Source address in broadcast ping reply)
710  
711 2015-02-22: Simon Goldschmidt
712 * udp.h, sockets.c: added proper accessor functions for pcb->multicast_ip
713 (previously used by get/setsockopt only)
714  
715 2015-02-18: Simon Goldschmidt
716 * sockets.c: Fixed select not reporting received FIN as 'readable' in certain
717 rare cases (bug #43779: select(), close(), and TCP retransmission error)
718  
719 2015-02-17: Simon Goldschmidt
720 * err.h, sockets.c, api_msg.c: fixed bug #38853 "connect() use a wrong errno":
721 return ERR_ALREADY/EALRADY during connect, ERR_ISCONN/EISCONN when already
722 connected
723  
724 2015-02-17: Simon Goldschmidt
725 * tcp_impl.h, tcp_out.c, tcp.c, api_msg.c: fixed bug #37614 "Errors from
726 ipX_output are not processed". Now tcp_output(_segment) checks for the return
727 value of ipX_output and does not try to send more on error. A netif driver
728 can call tcp_txnow() (from tcpip_thread!) to try to send again if TX buffers
729 are available again.
730  
731 2015-02-14: patches by Freddie Chopin
732 * snmp*: made community writable, fixed some const pointers
733  
734 2015-02-13: Simon Goldschmidt
735 * msg_in.c: fixed bug #22070 "MIB_OBJECT_WRITE_ONLY not implemented in SNMP"
736  
737 2015-02-12: Simon Goldschmidt
738 * ip.h, ip4.c, ip6.c: fixed bug #36403 "ip4_input() and ip6_input() always pass
739 inp to higher layers": now the accepting netif is passed up, but the input
740 netif is available through ip_current_input_netif() if required.
741  
742 2015-02-11: patch by hichard
743 * tcpip.c: fixed bug #43094 "The function tcpip_input() forget to handle IPv6"
744  
745 2015-02-10: Simon Goldschmidt
746 * netconn API: fixed that netconn_close/netconn_delete still used message passing
747 for LWIP_TCPIP_CORE_LOCKING==1
748  
749 2015-02-10: Simon Goldschmidt
750 * netconn/socket api: fixed bug #44225 "closing TCP socket should time out
751 eventually", implemented task #6930 "Implement SO_LINGER": closing TCP sockets
752 times out after 20 seconds or after the configured SND_TIMEOUT or depending
753 on the linger settings.
754  
755 2015-01-27: Simon Goldschmidt
756 * api_msg.c: fixed that SHUT_RD followed by SHUT_WR was different to SHUT_RDWR,
757 fixed return value of lwip_netconn_do_close on unconnected netconns
758  
759 2015-01-17: Simon Goldschmidt
760 * sockets.c: fixed bug #43361 select() crashes with stale FDs
761  
762 2015-01-17: Simon Goldschmidt
763 * sockets.c/.h, memp_std.h: fixed bug #40788 "lwip_setsockopt_internal() crashes"
764 by rewriting set/getsockopt functions to combine checks with the actual code
765 and add more NULL checks; this also fixes that CORE_LOCKING used message
766 passing for set/getsockopt.
767  
768 2014-12-19: Simon Goldschmidt
769 * opt.h, dhcp.h/.c: prevent dhcp from starting when netif link is down (only
770 when LWIP_DHCP_CHECK_LINK_UP==1, which is disabled by default for
771 compatibility reasons)
772  
773 2014-12-17: Simon Goldschmidt
774 * tcp_out.c: fixed bug #43840 Checksum error for TCP_CHECKSUM_ON_COPY==1 for
775 no-copy data with odd length
776  
777 2014-12-10: Simon Goldschmidt
778 * sockets.c, tcp.c, others: fixed bug #43797 set/getsockopt: SO_SNDTIMEO/SO_RCVTIMEO
779 take int as option but should take timeval (LWIP_SO_SNDRCVTIMEO_STANDARD==0 can
780 be used to revert to the old 'winsock' style behaviour)
781 Fixed implementation of SO_ACCEPTCONN to just look at the pcb state
782  
783 2014-12-09: Simon Goldschmidt
784 * ip4.c: fixed bug #43596 IGMP queries from 0.0.0.0 are discarded
785  
786 2014-10-21: Simon Goldschmidt (patch by Joel Cunningham and Albert Huitsing)
787 * sockts.c: fixed bugs #41495 Possible threading issue in select() and #43278
788 event_callback() handle context switch when calling sys_sem_signal()
789  
790 2014-10-21: Simon Goldschmidt
791 * api_msg.c: fixed bug #38219 Assert on TCP netconn_write with sndtimeout set
792  
793 2014-09-16: Kevin Cernekee
794 * dns.c: patch #8480 Fix handling of dns_seqno wraparound
795  
796 2014-09-16: Simon Goldschmidt
797 * tcp_out.c: fixed bug #43192 tcp_enqueue_flags() should not check TCP_SND_QUEUELEN
798 when sending FIN
799  
800 2014-09-03: Simon Goldschmidt
801 * msg_in.c: fixed bug #39355 SNMP Memory Leak in case of error
802  
803 2014-09-02: Simon Goldschmidt
804 * err.h/.c, sockets.c, api_msg.c: fixed bug #43110 call getpeername() before
805 listen() will cause a error
806  
807 2014-09-02: Simon Goldschmidt
808 * sockets.c: fixed bug #42117 lwip_fcntl does not set errno
809  
810 2014-09-02: Simon Goldschmidt
811 * tcp.c: fixed bug #42299 tcp_abort() leaves freed pcb on tcp_bound_pcbs list
812  
813 2014-08-20: Simon Goldschmidt
814 * dns.c: fixed bug #42987 lwIP is vulnerable to DNS cache poisoning due to
815 non-randomized TXIDs
816  
817 2014-06-03: Simon Goldschmidt
818 * tcp_impl.h, tcp_in.c: fixed bug #37969 SYN packet dropped as short packet in
819 tcp_input function
820  
821 2014-05-20: Simon Goldschmidt
822 * tcp_out.c: fixed bug #37184 tcp_write problem for pcbs in the SYN_SENT state
823  
824 2014-05-19: Simon Goldschmidt
825 * *.h: Fixed bug #35874 reserved identifier violation (removed leading underscores
826 from header include guards)
827  
828 2014-04-08: Simon Goldschmidt
829 * tcp.c: Fixed bug #36167 tcp server crash when client closes (maximum window)
830  
831 2014-04-06: Simon Goldschmidt
832 * tcp_in.c: Fixed bug #36210 lwIP does not elicit an empty ACK when received
833 unacceptable ACK
834  
835 2014-04-06: Simon Goldschmidt
836 * dhcp.c, ip4.c/.h, ip6.c/.h, udp.c/.h, ip.h: Fixed bug #41787 DHCP Discovery
837 is invalid when an IP is set to thet netif.
838  
839 2014-03-14: Simon Goldschmidt
840 * tcp_out.c: Fixed bug #36153 TCP Cheksum error if LWIP_CHECKSUM_ON_COPY=1
841  
842 2014-03-11: Simon Goldschmidt (patch by Mason)
843 * opt.h, sockets.c: fixed bug #35928 BSD sockets functions must set errno for
844 POSIX-compliance
845  
846 2014-02-27: Simon Goldschmidt
847 * dhcp.c: fixed bug #40303 DHCP xid renewed when sending a DHCPREQUEST
848  
849 2014-02-27: Simon Goldschmidt
850 * raw.c: fixed bug #41680 raw socket can not receive IPv6 packet when
851 IP_SOF_BROADCAST_RECV==1
852  
853 2014-02-27: Simon Goldschmidt
854 * api_msg.c, sockets.c: fixed bug #38404 getpeeraddr returns success on
855 unconnected/listening TCP sockets
856  
857 2014-02-27: Simon Goldschmidt
858 * sockets.c: fixed bug #41729 Some socket functions return Exyz instead of -1
859  
860 2014-02-25: Simon Goldschmidt
861 * ip4.c: fixed bug #39514 ip_route() may return an IPv6-only interface
862  
863 2014-02-25: Simon Goldschmidt, patch by Fatih Asici
864 * pbuf.c: fixed bug #39356 Wrong increment in pbuf_memfind()
865  
866 2014-02-25: Simon Goldschmidt
867 * netif.c/.h, udp.c: fixed bug #39225 udp.c uses netif_matches_ip6_addr() incorrectly;
868 renamed function netif_matches_ip6_addr() to netif_get_ip6_addr_match()
869  
870 2014-02-25: Simon Goldschmidt
871 * igmp.c: fixed bug #39145 IGMP membership report for 224.0.0.1
872  
873 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
874 * etharp.c, opt.h: fixed bug #34681 Limit ARP queue length by ARP_QUEUE_LEN (=3)
875  
876 2014-02-22: Simon Goldschmidt (patch by Amir Shalem)
877 * etharp.h/.c: fixed bug #34682 Limit ARP request flood for unresolved entry
878  
879 2014-02-20: Simon Goldschmidt
880 * tcp_out.c: fixed bug #39683 Assertion "seg->tcphdr not aligned" failed with
881 MEM_ALIGNMENT = 8
882  
883 2014-02-20: Simon Goldschmidt
884 * sockets.c: fixed bug #39882 No function shall set errno to 0
885  
886 2014-02-20: Simon Goldschmidt
887 * mib_structs.c: fixed bug #40050 SNMP problem with MIB arrays > 255
888  
889 2014-02-20: Simon Goldschmidt
890 * api.h, sockets.c: fixed bug #41499 netconn::recv_avail can overflow
891  
892 2014-01-08: Stathis Voukelatos
893 * memp_std.h: patch #7928 Fixed size calculation in MALLOC memory pool
894 creation macro
895  
896 2014-01-18: Brian Fahs
897 * tcp_out.c: patch #8237: tcp_rexmit_rto fails to update pcb->unsent_oversize
898 when necessary
899  
900 2014-01-17: Grant Erickson, Jay Logue, Simon Goldschmidt
901 * ipv6.c, netif.c: patch #7913 Enable Support for IPv6 Loopback
902  
903 2014-01-16: Stathis Voukelatos
904 * netif.c: patch #7902 Fixed netif_poll() operation when LWIP_LOOPBACK_MAX_PBUFS > 0
905  
906 2014-01-14: "Freddie Chopin"
907 * snmp.h, mib2.c: fixed constness and spelling of sysdescr
908  
909 2014-01-14: Simon Goldschmidt (patch by Thomas Faber)
910 * tcpip.c: patch #8241: Fix implicit declaration of ip_input with
911 LWIP_TCPIP_CORE_LOCKING_INPUT disabled
912  
913 2014-01-14: chrysn
914 * timers.c: patch #8244 make timeouts usable reliably from outside of the
915 timeout routine
916  
917 2014-01-10: Simon Goldschmidt
918 * ip_frag.c, ip6_frag.c: fixed bug #41041 Potential use-after-free in IPv6 reassembly
919  
920 2014-01-10: Simon Goldschmidt
921 * memp.c: fixed bug #41188 Alignment error in memp_init() when MEMP_SEPARATE_POOLS==1
922  
923 2014-01-10: Simon Goldschmidt
924 * tcp.c: fixed bug #39898 tcp_fasttmr() possible lock due to infinte queue process loop
925  
926 2013-06-29: Simon Goldschmidt
927 * inet.h, sockets.h: partially fixed bug #37585: IPv6 compatibility (in socket structs)
928  
929 2013-06-29: Simon Goldschmidt
930 * inet6.h: bug #37585/task #12600: fixed struct in6_addr.s6_addr to conform to spec
931  
932 2013-04-24: patch by Liam <morepork>
933 * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
934  
935 2013-04-24: Simon Goldschmidt
936 * igmp.c: fixed possible division by zero
937  
938 2013-04-24: Simon Goldschmidt
939 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
940  
941 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
942 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
943  
944 2013-01-15: Simon Goldschmidt
945 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
946  
947 2013-01-15: Simon Goldschmidt
948 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
949  
950 2013-01-14: Simon Goldschmidt
951 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
952  
953 2013-01-11: Simon Goldschmidt
954 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
955  
956 2012-08-22: Simon Goldschmidt
957 * memp.c: fixed bug #37166: memp_sanity check loops itself
958  
959 2012-08-13: Simon Goldschmidt
960 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
961 dereferences NULL
962  
963 2012-08-13: Simon Goldschmidt
964 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
965 configured but no interfaces available
966  
967 2012-08-13: Simon Goldschmidt
968 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
969  
970 2012-05-11: Simon Goldschmidt (patch by Marty)
971 * memp.c: fixed bug #36412: memp.c does not compile when
972 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
973  
974 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
975 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
976 not packed)
977  
978 2012-05-03: Simon Goldschmidt (patch by David Empson)
979 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
980 zero length)
981  
982 2012-03-25: Simon Goldschmidt
983 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
984 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
985  
986 2012-03-25: Simon Goldschmidt
987 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
988 pollution in api_msg.c and netifapi.c
989  
990 2011-08-24: Simon Goldschmidt
991 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
992  
993  
994  
995 (STABLE-1.4.1)
996  
997 ++ New features:
998  
999 2012-03-25: Simon Goldschmidt (idea by Mason)
1000 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
1001 which are a simple wrapper to the correct lwIP include files.
1002  
1003 2012-01-16: Simon Goldschmidt
1004 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
1005  
1006 2011-12-17: Simon Goldschmidt
1007 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
1008 (fixes bug #35061)
1009  
1010 2011-09-27: Simon Goldschmidt
1011 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
1012 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
1013  
1014 2011-09-21: Simon Goldschmidt
1015 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
1016 send (TCP only, bug #33820)
1017  
1018 2011-09-21: Simon Goldschmidt
1019 * init.c: Converted runtime-sanity-checks into compile-time checks that can
1020 be disabled (since runtime checks can often not be seen on embedded targets)
1021  
1022 2011-09-11: Simon Goldschmidt
1023 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
1024 to get a clear separation of which functions an application or port may use
1025 (task #11281)
1026  
1027 2011-09-11: Simon Goldschmidt
1028 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
1029 initial local TCP/UDP ports (so that different port ranges are used after
1030 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
1031  
1032 2011-09-03: Simon Goldschmidt
1033 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
1034  
1035 2011-08-24: Simon Goldschmidt
1036 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
1037  
1038 2011-07-26: Simon Goldschmidt
1039 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
1040 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
1041  
1042 2011-07-21: Simon Goldschmidt (patch by hanhui)
1043 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
1044 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
1045 Also added code to allow ip_forward() to forward non-broadcast packets to
1046 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
1047  
1048 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
1049 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
1050 pcb->state != LISTEN
1051  
1052 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
1053 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
1054 memory message
1055  
1056  
1057 ++ Bugfixes:
1058  
1059 2012-09-26: Simon Goldschmidt
1060 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
1061  
1062 2012-09-26: patch by Henrik Persson
1063 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
1064  
1065 2012-09-26: patch by Henrik Persson
1066 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
1067  
1068 2012-08-22: Simon Goldschmidt
1069 * memp.c: fixed bug #37166: memp_sanity check loops itself
1070  
1071 2012-05-08: Simon Goldschmidt
1072 * tcp_out.c: fixed bug: #36380 unsent_oversize mismatch in 1.4.1RC1 (this was
1073 a debug-check issue only)
1074  
1075 2012-03-27: Simon Goldschmidt
1076 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
1077  
1078 2012-03-27: Simon Goldschmidt (patch by Mason)
1079 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
1080 send MSS
1081  
1082 2012-03-22: Simon Goldschmidt
1083 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
1084  
1085 2012-03-20: Simon Goldschmidt (patch by Mason)
1086 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
1087  
1088 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
1089 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
1090 possible bug on little endian system
1091  
1092 2012-02-23: Simon Goldschmidt
1093 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
1094 (introduced when fixing bug# 33551)
1095  
1096 2012-02-16: Simon Goldschmidt
1097 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
1098 (bug #35541: PPP Memory Leak)
1099  
1100 2012-02-16: Simon Goldschmidt
1101 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
1102 (introduced when fixing bug# 33551)
1103  
1104 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
1105 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
1106  
1107 2012-02-15: Simon Goldschmidt
1108 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
1109 MEMP_MEM_MALLOC==1
1110  
1111 2012-02-12: Simon Goldschmidt
1112 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
1113 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
1114  
1115 2012-02-11: Simon Goldschmidt
1116 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
1117 queue while closing
1118  
1119 2012-01-22: Simon Goldschmidt
1120 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
1121  
1122 2012-01-21: Simon Goldschmidt
1123 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
1124  
1125 2012-01-20: Simon Goldschmidt
1126 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
1127  
1128 2012-01-20: Simon Goldschmidt
1129 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
1130  
1131 2011-11-25: Simon Goldschmidt
1132 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
1133 tcp_active_pcbs in some cases
1134  
1135 2011-11-23: Simon Goldschmidt
1136 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
1137 '#ifndef sys_msleep'
1138  
1139 2011-11-22: Simon Goldschmidt
1140 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
1141 netif is brought down
1142  
1143 2011-10-28: Simon Goldschmidt
1144 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
1145  
1146 2011-10-23: Simon Goldschmidt
1147 * mem.c: fixed bug #34429: possible memory corruption with
1148 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
1149  
1150 2011-10-18: Simon Goldschmidt
1151 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
1152 error value
1153  
1154 2011-10-18: Simon Goldschmidt
1155 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
1156 windows (bug #34176 select after non-blocking send times out)
1157  
1158 2011-10-18: Simon Goldschmidt
1159 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
1160 consider netif->mtu, causes slow network
1161  
1162 2011-10-18: Simon Goldschmidt
1163 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
1164  
1165 2011-10-18: Simon Goldschmidt
1166 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
1167  
1168 2011-10-17: Simon Goldschmidt
1169 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
1170  
1171 2011-10-13: Simon Goldschmidt
1172 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
1173 zero window is received) by starting the persist timer when a zero window is
1174 received, not when we have more data queued for sending than fits into the
1175 window
1176  
1177 2011-10-13: Simon Goldschmidt
1178 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
1179  
1180 2011-10-13: Simon Goldschmidt
1181 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
1182 used and not all protocols are enabled
1183  
1184 2011-10-12: Simon Goldschmidt
1185 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
1186  
1187 2011-10-09: Simon Goldschmidt
1188 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
1189 byte value when pcb->unacked != NULL
1190  
1191 2011-10-09: Simon Goldschmidt
1192 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
1193  
1194 2011-09-27: Simon Goldschmidt
1195 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
1196  
1197 2011-09-27: Simon Goldschmidt
1198 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
1199  
1200 2011-09-27: Simon Goldschmidt
1201 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
1202  
1203 2011-09-24: Simon Goldschmidt
1204 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
1205  
1206 2011-09-23: Simon Goldschmidt
1207 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
1208 the last packet including FIN can lose data
1209  
1210 2011-09-22: Simon Goldschmidt
1211 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
1212 account
1213  
1214 2011-09-21: Simon Goldschmidt
1215 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
1216 in init.c
1217  
1218 2011-09-20: Simon Goldschmidt
1219 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
1220  
1221 2011-09-11: Simon Goldschmidt
1222 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
1223 (bug #34019)
1224  
1225 2011-09-09: Simon Goldschmidt
1226 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
1227 udp port matches
1228  
1229 2011-09-03: Simon Goldschmidt
1230 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
1231 is aggregated and sent to application
1232  
1233 2011-09-01: Simon Goldschmidt
1234 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
1235 to other options
1236  
1237 2011-09-01: Simon Goldschmidt
1238 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
1239  
1240 2011-08-24: Simon Goldschmidt
1241 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
1242 accept() on UDP connections
1243  
1244 2011-08-24: Simon Goldschmidt
1245 * sockets.h: fixed bug #34057 socklen_t should be a typedef
1246  
1247 2011-08-24: Simon Goldschmidt
1248 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
1249  
1250 2011-08-24: Simon Goldschmidt
1251 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
1252  
1253 2011-08-24: Simon Goldschmidt
1254 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
1255  
1256 2011-08-22: Simon Goldschmidt
1257 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
1258 merely prevents nagle from not transmitting fast after closing.)
1259  
1260 2011-07-22: Simon Goldschmidt
1261 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
1262 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
1263 lwip_send() sends as much as possible for non-blocking sockets
1264  
1265 2011-07-22: Simon Goldschmidt
1266 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
1267 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
1268 at regular intervals from main level.
1269  
1270 2011-07-21: Simon Goldschmidt
1271 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
1272 sending an ARP request when an ARP entry is used in the last minute before
1273 it would time out.
1274  
1275 2011-07-04: Simon Goldschmidt
1276 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
1277  
1278 2011-06-26: Simon Goldschmidt
1279 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
1280 updating its documentation only.
1281  
1282 2011-06-26: Simon Goldschmidt
1283 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
1284 unaligned pointer.
1285  
1286 2011-06-26: Simon Goldschmidt
1287 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
1288  
1289 2011-05-25: Simon Goldschmidt
1290 * tcp.c: fixed bug #33398 (pointless conversion when checking TCP port range)
1291  
1292  
1293  
1294 (STABLE-1.4.0)
1295  
1296 ++ New features:
1297  
1298 2011-03-27: Simon Goldschmidt
1299 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
1300 calculate it in tcp_zero_window_probe (the only place where it was used).
1301  
1302 2010-11-21: Simon Goldschmidt
1303 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
1304 (fixes bug #31525).
1305  
1306 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
1307 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
1308 IP_MULTICAST_LOOP at socket- and raw-API level.
1309  
1310 2010-06-16: Simon Goldschmidt
1311 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
1312 link-layer-addressed UDP traffic to be received while a netif is down (just
1313 like DHCP during configuration)
1314  
1315 2010-05-22: Simon Goldschmidt
1316 * many many files: bug #27352: removed packing from ip_addr_t, the packed
1317 version is now only used in protocol headers. Added global storage for
1318 current src/dest IP address while in input functions.
1319  
1320 2010-05-16: Simon Goldschmidt
1321 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
1322 calculation (and use them throughout the stack where applicable)
1323  
1324 2010-05-16: Simon Goldschmidt
1325 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
1326 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
1327  
1328 2010-05-16: Simon Goldschmidt
1329 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
1330 MEMP pool instead of the heap
1331  
1332 2010-05-13: Simon Goldschmidt
1333 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
1334 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
1335 packets to more than one pcb.
1336  
1337 2010-05-02: Simon Goldschmidt
1338 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
1339 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
1340  
1341 2010-04-30: Simon Goldschmidt
1342 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
1343 take a precalculated checksum, added pbuf_fill_chksum() to copy data
1344 into a pbuf and at the same time calculating the checksum for that data
1345  
1346 2010-04-29: Simon Goldschmidt
1347 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
1348 2-byte-aligned IP addresses and MAC addresses
1349  
1350 2010-04-28: Patch by Bill Auerbach
1351 * ip.c: Inline generating IP checksum to save a function call
1352  
1353 2010-04-14: Simon Goldschmidt
1354 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
1355 tcpip_thread processes messages or timeouts to implement a watchdog.
1356  
1357 2010-03-28: Simon Goldschmidt
1358 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
1359 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
1360  
1361 2010-03-27: Simon Goldschmidt
1362 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
1363 etharp_query to prevent unnecessary function calls (inspired by
1364 patch #7135).
1365  
1366 2010-03-20: Simon Goldschmidt
1367 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
1368 since the linker cannot do this automatically to save space.
1369  
1370 2010-03-20: Simon Goldschmidt
1371 * opt.h, etharp.c/.h: Added support for static ARP table entries
1372  
1373 2010-03-14: Simon Goldschmidt
1374 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
1375 when creating TCP segments, not when (re-)transmitting them.
1376  
1377 2010-03-07: Simon Goldschmidt
1378 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
1379 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
1380 This should speed up receiving data on sockets as the select code in
1381 event_callback is only executed when select is waiting.
1382  
1383 2010-03-06: Simon Goldschmidt
1384 * tcp_out.c: task #7013 (Create option to have all packets delivered to
1385 netif->output in one piece): Always copy to try to create single pbufs
1386 in tcp_write.
1387  
1388 2010-03-06: Simon Goldschmidt
1389 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
1390 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
1391 for tcp netconns to receive pbufs, not netbufs; use that function
1392 for tcp sockets.
1393  
1394 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
1395 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
1396 Work on tcp_enqueue: Don't waste memory when chaining segments,
1397 added option TCP_OVERSIZE to prevent creating many small pbufs when
1398 calling tcp_write with many small blocks of data. Instead, pbufs are
1399 allocated larger than needed and the space is used for later calls to
1400 tcp_write.
1401  
1402 2010-02-21: Simon Goldschmidt
1403 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
1404 debugging.
1405  
1406 2010-02-21: Simon Goldschmidt
1407 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
1408 implementation of tcp to make API usage cleare to application programmers
1409  
1410 2010-02-14: Simon Goldschmidt/Stephane Lesage
1411 * ip_addr.h: Improved some defines working on ip addresses, added faster
1412 macro to copy addresses that cannot be NULL
1413  
1414 2010-02-13: Simon Goldschmidt
1415 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
1416 blocking send operation)
1417  
1418 2010-02-12: Simon Goldschmidt
1419 * sockets.c/.h: Added a minimal version of posix fctl() to have a
1420 standardised way to set O_NONBLOCK for nonblocking sockets.
1421  
1422 2010-02-12: Simon Goldschmidt
1423 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
1424 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
1425 and dhcp work with user-allocated structs instead of callin mem_malloc
1426  
1427 2010-02-12: Simon Goldschmidt/Jeff Barber
1428 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
1429 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
1430  
1431 2010-02-12: Simon Goldschmidt
1432 * sys layer: task #10139 (Prefer statically allocated memory): converted
1433 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
1434 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
1435 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
1436 to let sys.h use binary semaphores instead of mutexes - as before)
1437  
1438 2010-02-09: Simon Goldschmidt (Simon Kallweit)
1439 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
1440 (Restart system timeout handling)
1441  
1442 2010-02-09: Simon Goldschmidt
1443 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
1444 netif.c) - loopif does not have to be created by the port any more,
1445 just define LWIP_HAVE_LOOPIF to 1.
1446  
1447 2010-02-08: Simon Goldschmidt
1448 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
1449 inet_ntoa_r/ipaddr_ntoa_r
1450  
1451 2010-02-08: Simon Goldschmidt
1452 * netif.h: Added netif_s/get_igmp_mac_filter() macros
1453  
1454 2010-02-05: Simon Goldschmidt
1455 * netif.h: Added function-like macros to get/set the hostname on a netif
1456  
1457 2010-02-04: Simon Goldschmidt
1458 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
1459 make changing the actual implementation behind the typedef easier.
1460  
1461 2010-02-01: Simon Goldschmidt
1462 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
1463 for allocating memory when getaddrinfo() is called.
1464  
1465 2010-01-31: Simon Goldschmidt
1466 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
1467 them once instead of parsing for every option. This also removes
1468 the need for mem_malloc from dhcp_recv and makes it possible to
1469 correctly retrieve the BOOTP file.
1470  
1471 2010-01-30: simon Goldschmidt
1472 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
1473 the sockets array.
1474  
1475 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
1476 * api.h, api_msg.c, sockets.c: Added except set support in select
1477 (patch #6860)
1478  
1479 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
1480 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
1481 Add non-blocking support for connect (partly from patch #6860),
1482 plus many cleanups in socket & netconn API.
1483  
1484 2010-01-27: Simon Goldschmidt
1485 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
1486 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
1487  
1488 2010-01-26: Simon Goldschmidt
1489 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
1490  
1491 2010-01-14: Simon Goldschmidt
1492 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
1493 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
1494  
1495 2010-01-13: Simon Goldschmidt
1496 * mem.c: The heap now may be moved to user-defined memory by defining
1497 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
1498 (patch #6966 and bug #26133)
1499  
1500 2010-01-10: Simon Goldschmidt (Bill Auerbach)
1501 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
1502 separate arrays)
1503  
1504 2010-01-10: Simon Goldschmidt
1505 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
1506 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
1507  
1508 2009-12-31: Simon Goldschmidt
1509 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
1510 added timers.c/.h: Separated timer implementation from semaphore/mbox
1511 implementation, moved timer implementation to timers.c/.h, timers are
1512 now only called from tcpip_thread or by explicitly checking them.
1513 (TASK#7235)
1514  
1515 2009-12-27: Simon Goldschmidt
1516 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
1517 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
1518  
1519  
1520 ++ Bugfixes:
1521  
1522 2011-04-20: Simon Goldschmidt
1523 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
1524  
1525 2011-04-13: Simon Goldschmidt
1526 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
1527 using ports in the IANA private/dynamic range (49152 through 65535).
1528  
1529 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
1530 * etharp.h/.c: Fixed broken VLAN support.
1531  
1532 2011-03-27: Simon Goldschmidt
1533 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
1534 pcbs) by checking if the pcb was bound (local_port != 0).
1535  
1536 2011-03-27: Simon Goldschmidt
1537 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
1538  
1539 2011-03-27: Simon Goldschmidt
1540 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
1541 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
1542  
1543 2011-03-27: Simon Goldschmidt
1544 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
1545 is present never times out) by starting retransmission timer before checking
1546 route.
1547  
1548 2011-03-22: Simon Goldschmidt
1549 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
1550 calling sio_read_abort() if the file descriptor is valid.
1551  
1552 2011-03-14: Simon Goldschmidt
1553 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
1554 more than once can render a socket useless) since it mainly involves changing
1555 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
1556  
1557 2011-03-13: Simon Goldschmidt
1558 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
1559 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
1560 use EALRADY instead of -1
1561  
1562 2011-03-13: Simon Goldschmidt
1563 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
1564 connection has been aborted by err_tcp (since this is not a normal closing
1565 procedure).
1566  
1567 2011-03-13: Simon Goldschmidt
1568 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
1569 with pcb->state != CLOSED
1570  
1571 2011-02-17: Simon Goldschmidt
1572 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
1573 documentation
1574  
1575 2011-02-17: Simon Goldschmidt
1576 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
1577  
1578 2011-01-24: Simon Goldschmidt
1579 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
1580  
1581 2010-12-02: Simon Goldschmidt
1582 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
1583  
1584 2010-11-23: Simon Goldschmidt
1585 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
1586 LWIP_SO_RCVBUF and ioctl/FIONREAD.
1587  
1588 2010-11-23: Simon Goldschmidt
1589 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
1590 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
1591  
1592 2010-11-23: Simon Goldschmidt
1593 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
1594 refusing 'refused_data' again.
1595  
1596 2010-11-22: Simon Goldschmidt
1597 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
1598 after a successful nonblocking connection.
1599  
1600 2010-11-22: Simon Goldschmidt
1601 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
1602 must be sent link-local
1603  
1604 2010-11-22: Simon Goldschmidt
1605 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
1606 LWIP_TIMERS==0
1607  
1608 2010-11-20: Simon Goldschmidt
1609 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
1610  
1611 2010-11-20: Simon Goldschmidt
1612 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
1613 resemble other stacks.
1614  
1615 2010-11-20: Simon Goldschmidt
1616 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
1617 no-copy TCP writes will never succeed.
1618  
1619 2010-11-20: Simon Goldschmidt
1620 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
1621 not match documentation: return ERR_ARG instead of ERR_VAL if not
1622 initialized or wrong argument.
1623  
1624 2010-10-20: Simon Goldschmidt
1625 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
1626  
1627 2010-10-05: Simon Goldschmidt
1628 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
1629 replugging the network cable after an AutoIP address was assigned.
1630  
1631 2010-08-10: Simon Goldschmidt
1632 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
1633  
1634 2010-08-03: Simon Goldschmidt
1635 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
1636  
1637 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
1638 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
1639 endian architectures)
1640  
1641 2010-07-28: Simon Goldschmidt
1642 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
1643 disabled.
1644  
1645 2010-07-27: Simon Goldschmidt
1646 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
1647 harm but never did anything
1648  
1649 2010-07-21: Simon Goldschmidt
1650 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
1651 add IP options)
1652  
1653 2010-07-16: Kieran Mansley
1654 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
1655  
1656 2010-07-10: Simon Goldschmidt
1657 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
1658  
1659 2010-06-30: Simon Goldschmidt
1660 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
1661 netconn_delete)
1662  
1663 2010-06-28: Kieran Mansley
1664 * timers.c remove unportable printing of C function pointers
1665  
1666 2010-06-24: Simon Goldschmidt
1667 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
1668 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
1669  
1670 2010-06-24: Simon Goldschmidt
1671 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
1672 implemented shutdown at socket level.
1673  
1674 2010-06-21: Simon Goldschmidt
1675 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
1676 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
1677 custom pbufs that reference other (original) pbufs. Additionally set
1678 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
1679  
1680 2010-06-15: Simon Goldschmidt
1681 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
1682  
1683 2010-06-14: Simon Goldschmidt
1684 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
1685  
1686 2010-06-12: Simon Goldschmidt
1687 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
1688 state
1689  
1690 2010-05-17: Simon Goldschmidt
1691 * netdb.c: Correctly NULL-terminate h_addr_list
1692  
1693 2010-05-16: Simon Goldschmidt
1694 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
1695 "symbol already defined" i.e. when linking to winsock
1696  
1697 2010-05-05: Simon Goldschmidt
1698 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
1699 overflow)
1700  
1701 2010-04-21: Simon Goldschmidt
1702 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
1703 connection)
1704  
1705 2010-03-28: Luca Ceresoli
1706 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
1707  
1708 2010-03-27: Luca Ceresoli
1709 * mib2.c: patch #7130: remove meaningless const qualifiers
1710  
1711 2010-03-26: Simon Goldschmidt
1712 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
1713  
1714 2010-03-26: Simon Goldschmidt
1715 * various files: Fixed compiling with different options disabled (TCP/UDP),
1716 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
1717  
1718 2010-03-25: Simon Goldschmidt
1719 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
1720  
1721 2010-03-25: Simon Goldschmidt
1722 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
1723 overrunning our rcv_wnd in ooseq case.
1724  
1725 2010-03-22: Simon Goldschmidt
1726 * tcp.c: tcp_listen() did not copy the pcb's prio.
1727  
1728 2010-03-19: Simon Goldschmidt
1729 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
1730  
1731 2010-03-14: Simon Goldschmidt
1732 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
1733 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
1734 and basing PBUF_LINK_HLEN on it.
1735  
1736 2010-03-08: Simon Goldschmidt
1737 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
1738 when assiging routable address): when checking incoming packets and
1739 aborting existing connection on address change, filter out link-local
1740 addresses.
1741  
1742 2010-03-06: Simon Goldschmidt
1743 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
1744  
1745 2010-03-06: Simon Goldschmidt
1746 * ipv4/ip.c: Don't try to forward link-local addresses
1747  
1748 2010-03-06: Simon Goldschmidt
1749 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
1750 addresses to gw
1751  
1752 2010-03-05: Simon Goldschmidt
1753 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
1754 and state.
1755  
1756 2010-03-05: Simon Goldschmidt
1757 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
1758 into multiple calls to tcp_write.
1759  
1760 2010-02-21: Simon Goldschmidt
1761 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
1762 the implementation of DNS_USES_STATIC_BUF==1)
1763  
1764 2010-02-20: Simon Goldschmidt
1765 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
1766 close() vs. shutdown(). Now the application does not get any more
1767 recv callbacks after calling tcp_close(). Added tcp_shutdown().
1768  
1769 2010-02-19: Simon Goldschmidt
1770 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
1771 confusion with realloc()
1772  
1773 2010-02-15: Simon Goldschmidt/Stephane Lesage
1774 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
1775 (fixes bug #28899)
1776  
1777 2010-02-14: Simon Goldschmidt
1778 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
1779 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
1780 admin-status of a netif are up
1781  
1782 2010-02-14: Simon Goldschmidt
1783 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
1784 reception and is not really necessary
1785  
1786 2010-02-14: Simon Goldschmidt
1787 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
1788 request was directed as us (RFC 826, Packet Reception), otherwise
1789 only update existing entries; internalized some functions
1790  
1791 2010-02-14: Simon Goldschmidt
1792 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
1793 disabled on netif used for PPPoE) by adding a new netif flag
1794 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
1795 device but prevents usage of ARP (so that ethernet_input can be used
1796 for PPPoE).
1797  
1798 2010-02-12: Simon Goldschmidt
1799 * netif.c: netif_set_link_up/down: only do something if the link state
1800 actually changes
1801  
1802 2010-02-12: Simon Goldschmidt/Stephane Lesage
1803 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
1804 connect)
1805  
1806 2010-02-12: Simon Goldschmidt
1807 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
1808  
1809 2010-02-09: Simon Goldschmidt
1810 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
1811 (recv() makes receive window update for data that wasn't received by
1812 application)
1813  
1814 2010-02-09: Simon Goldschmidt/Stephane Lesage
1815 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
1816 or any netconn_recv() error)
1817  
1818 2010-02-09: Simon Goldschmidt
1819 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
1820  
1821 2010-02-09: Simon Goldschmidt
1822 * netif.c: For loopback packets, adjust the stats- and snmp-counters
1823 for the loopback netif.
1824  
1825 2010-02-08: Simon Goldschmidt
1826 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
1827 since they are not used anywhere else.
1828  
1829 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
1830 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
1831 (patch from bug #28798)
1832  
1833 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
1834 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
1835 another bug when LWIP_RAND() returns zero.
1836  
1837 2010-02-04: Simon Goldschmidt
1838 * nearly every file: Use macros defined in ip_addr.h (some of them new)
1839 to work with IP addresses (preparation for bug #27352 - Change ip_addr
1840 from struct to typedef (u32_t) - and better code).
1841  
1842 2010-01-31: Simon Goldschmidt
1843 * netif.c: Don't call the link-callback from netif_set_up/down() since
1844 this invalidly retriggers DHCP.
1845  
1846 2010-01-29: Simon Goldschmidt
1847 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
1848 portability file inet.h and its contents from the stack: moved htonX-
1849 functions to def.h (and the new def.c - they are not ipv4 dependent),
1850 let inet.h depend on ip_addr.h and not the other way round.
1851 This fixes bug #28732.
1852  
1853 2010-01-28: Kieran Mansley
1854 * tcp.c: Ensure ssthresh >= 2*MSS
1855  
1856 2010-01-27: Simon Goldschmidt
1857 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
1858 callback can lead to accessing unallocated memory. As a consequence,
1859 ERR_ABRT means the application has called tcp_abort()!
1860  
1861 2010-01-25: Simon Goldschmidt
1862 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
1863 not implemented in SNMP): write-only or not-accessible are still
1864 returned by getnext (though not by get)
1865  
1866 2010-01-24: Simon Goldschmidt
1867 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
1868 not use reserved C/C++ keywords
1869  
1870 2010-01-23: Simon Goldschmidt
1871 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
1872 than 1 ms
1873  
1874 2010-01-21: Simon Goldschmidt
1875 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
1876 if tcp_enqueue fails) both in raw- and netconn-API
1877  
1878 2010-01-19: Simon Goldschmidt
1879 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
1880  
1881 2010-01-18: Iordan Neshev/Simon Goldschmidt
1882 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
1883 bugfix backports from 2.4.x.
1884  
1885 2010-01-18: Simon Goldschmidt
1886 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
1887  
1888 2010-01-17: Simon Goldschmidt
1889 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
1890 task #10102: "netconn: clean up conn->err threading issues" by adding
1891 error return value to struct api_msg_msg
1892  
1893 2010-01-17: Simon Goldschmidt
1894 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
1895 to return err_t (bugs #27709 and #28087)
1896  
1897 2010-01-14: Simon Goldschmidt
1898 * ...: Use typedef for function prototypes throughout the stack.
1899  
1900 2010-01-13: Simon Goldschmidt
1901 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
1902 window = 0) by correctly draining recvmbox/acceptmbox
1903  
1904 2010-01-11: Simon Goldschmidt
1905 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
1906 erroneous callbacks) by copying the code from recent pppd
1907  
1908 2010-01-10: Simon Goldschmidt
1909 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
1910  
1911 2010-01-10: Simon Goldschmidt
1912 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
1913  
1914 2010-01-08: Simon Goldschmidt
1915 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
1916  
1917 2010-01-08: Simon Goldschmidt
1918 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
1919 passed to dns_local_addhost() might be volatile
1920  
1921 2010-01-07: Simon Goldschmidt
1922 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
1923  
1924 2010-01-06: Simon Goldschmidt
1925 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1926  
1927 2009-12-31: Simon Goldschmidt
1928 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1929 structure to easily compare our code against the pppd code (around v2.3.1)
1930  
1931 2009-12-27: Simon Goldschmidt
1932 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1933 unit test
1934  
1935  
1936 (STABLE-1.3.2)
1937  
1938 ++ New features:
1939  
1940 2009-10-27 Simon Goldschmidt/Stephan Lesage
1941 * netifapi.c/.h: Added netifapi_netif_set_addr()
1942  
1943 2009-10-07 Simon Goldschmidt/Fabian Koch
1944 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1945 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1946  
1947 2009-08-26 Simon Goldschmidt/Simon Kallweit
1948 * slipif.c/.h: bug #26397: SLIP polling support
1949  
1950 2009-08-25 Simon Goldschmidt
1951 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1952 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1953  
1954 2009-08-25 Simon Goldschmidt
1955 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1956  
1957 2009-08-24 Jakob Stoklund Olesen
1958 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1959 to netif_set_link_up().
1960  
1961 2009-08-23 Simon Goldschmidt
1962 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1963 to a human-readable string.
1964  
1965 ++ Bugfixes:
1966  
1967 2009-12-24: Kieran Mansley
1968 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1969 (BUG#28241)
1970  
1971 2009-12-06: Simon Goldschmidt
1972 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1973 be statically allocated (like in ucip)
1974  
1975 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1976 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1977  
1978 2009-12-03: Simon Goldschmidt
1979 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1980 could have non-zero length
1981  
1982 2009-12-02: Simon Goldschmidt
1983 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1984 tcp_input_pcb until after calling the pcb's callbacks
1985  
1986 2009-11-29: Simon Goldschmidt
1987 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1988 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1989  
1990 2009-11-29: Simon Goldschmidt
1991 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1992 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1993  
1994 2009-11-26: Simon Goldschmidt
1995 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1996 segment
1997  
1998 2009-11-26: Simon Goldschmidt
1999 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
2000 algorithm at PCB level
2001  
2002 2009-11-22: Simon Goldschmidt
2003 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
2004  
2005 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
2006 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
2007 reusing time-wait pcb
2008  
2009 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
2010 * sockets.c: Fixed bug #28062: Data received directly after accepting
2011 does not wake up select
2012  
2013 2009-11-11: Simon Goldschmidt
2014 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
2015  
2016 2009-10-30: Simon Goldschmidt
2017 * opt.h: Increased default value for TCP_MSS to 536, updated default
2018 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
2019  
2020 2009-10-28: Kieran Mansley
2021 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
2022 to follow algorithm from TCP/IP Illustrated
2023  
2024 2009-10-27: Kieran Mansley
2025 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
2026  
2027 2009-10-25: Simon Goldschmidt
2028 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
2029 pcb->recv is NULL to keep rcv_wnd correct)
2030  
2031 2009-10-25: Simon Goldschmidt
2032 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
2033  
2034 2009-10-23: Simon Goldschmidt (David Empson)
2035 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
2036  
2037 2009-10-21: Simon Goldschmidt
2038 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
2039 trailing 1 byte len (SYN/FIN)
2040  
2041 2009-10-21: Simon Goldschmidt
2042 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
2043  
2044 2009-10-19: Simon Goldschmidt
2045 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
2046 conditional code to assert where applicable), check pbuf length before
2047 testing for valid reply
2048  
2049 2009-10-19: Simon Goldschmidt
2050 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
2051 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
2052  
2053 2009-10-16: Simon Goldschmidt
2054 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
2055 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
2056 enabled
2057  
2058 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
2059 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
2060  
2061 2009-10-15: Simon Goldschmidt
2062 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
2063 timeout
2064  
2065 2009-10-15: Simon Goldschmidt
2066 * autoip.c: Fixed bug #27704: autoip starts with wrong address
2067 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
2068 of network byte order
2069  
2070 2009-10-11 Simon Goldschmidt (Jörg Kesten)
2071 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
2072 which are not consecutive when retransmitting unacked segments
2073  
2074 2009-10-09 Simon Goldschmidt
2075 * opt.h: Fixed default values of some stats to only be enabled if used
2076 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
2077  
2078 2009-08-30 Simon Goldschmidt
2079 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
2080 function" by checking for loopback before calling ip_frag
2081  
2082 2009-08-25 Simon Goldschmidt
2083 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
2084  
2085 2009-08-23 Simon Goldschmidt
2086 * ppp.c: bug #27078: Possible memory leak in pppInit()
2087  
2088 2009-08-23 Simon Goldschmidt
2089 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
2090 is error.
2091  
2092 2009-08-23 Simon Goldschmidt
2093 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
2094 Fixed wrong parenthesis, added check in init.c
2095  
2096 2009-08-23 Simon Goldschmidt
2097 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
2098  
2099 2009-08-23 Simon Goldschmidt
2100 * many ppp files: bug #27267: Added include to string.h where needed
2101  
2102 2009-08-23 Simon Goldschmidt
2103 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
2104  
2105  
2106 (STABLE-1.3.1)
2107  
2108 ++ New features:
2109  
2110 2009-05-10 Simon Goldschmidt
2111 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
2112 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
2113 one pbuf to help MACs that don't support scatter-gather DMA.
2114  
2115 2009-05-09 Simon Goldschmidt
2116 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
2117 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
2118  
2119 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
2120 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
2121 extended info about the currently received packet.
2122  
2123 2009-04-27 Simon Goldschmidt
2124 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
2125  
2126 2009-04-25 Simon Goldschmidt
2127 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
2128 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
2129  
2130 2009-04-21 Simon Goldschmidt
2131 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
2132 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
2133 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
2134 as an external function for lookup.
2135  
2136 2009-04-15 Simon Goldschmidt
2137 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
2138  
2139 2009-03-31 Kieran Mansley
2140 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
2141 TCP timestamp options, off by default. Rework tcp_enqueue() to
2142 take option flags rather than specified option data
2143  
2144 2009-02-18 Simon Goldschmidt
2145 * cc.h: Added printf formatter for size_t: SZT_F
2146  
2147 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
2148 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
2149 pings
2150  
2151 2009-02-12 Simon Goldschmidt
2152 * init.h: Added LWIP_VERSION to get the current version of the stack
2153  
2154 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
2155 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
2156 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
2157 is otherwise used)
2158  
2159 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
2160 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
2161 is only used by UDPLITE at present, so conditionalise it.
2162  
2163 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
2164 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
2165 "seed" address. This should reduce AUTOIP conflicts if
2166 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
2167  
2168 2008-10-02 Jonathan Larmour and Rishi Khan
2169 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
2170 socket.
2171  
2172 2008-06-30 Simon Goldschmidt
2173 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
2174 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
2175 mem_free to run between mem_malloc iterations. Added illegal counter for
2176 mem stats.
2177  
2178 2008-06-27 Simon Goldschmidt
2179 * stats.h/.c, some other files: patch #6483: stats module improvement:
2180 Added defines to display each module's statistic individually, added stats
2181 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
2182  
2183 2008-06-17 Simon Goldschmidt
2184 * err.h: patch #6459: Made err_t overridable to use a more efficient type
2185 (define LWIP_ERR_T in cc.h)
2186  
2187 2008-06-17 Simon Goldschmidt
2188 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
2189 to loopif
2190  
2191 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
2192 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
2193 modified version of patch # 6370: Moved loopif code to netif.c so that
2194 loopback traffic is supported on all netifs (all local IPs).
2195 Added option to limit loopback packets for each netifs.
2196  
2197  
2198 ++ Bugfixes:
2199 2009-08-12 Kieran Mansley
2200 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
2201 out of window or out of order properly
2202  
2203 2009-08-12 Kieran Mansley
2204 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
2205  
2206 2009-07-28 Simon Goldschmidt
2207 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
2208  
2209 2009-07-27 Kieran Mansley
2210 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
2211  
2212 2009-07-09 Kieran Mansley
2213 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
2214 recv_avail and don't increment counters until message successfully
2215 sent to mbox
2216  
2217 2009-06-25 Kieran Mansley
2218 * api_msg.c api.h: BUG26722: initialise netconn write variables
2219 in netconn_alloc
2220  
2221 2009-06-25 Kieran Mansley
2222 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
2223  
2224 2009-06-25 Kieran Mansley
2225 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
2226 simultaneous close behaviour, and make snd_nxt have the same meaning
2227 as in the RFCs.
2228  
2229 2009-05-12 Simon Goldschmidt
2230 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
2231 arp_table / uses etharp_query" by adding etharp_gratuitous()
2232  
2233 2009-05-12 Simon Goldschmidt
2234 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
2235 to the IP header (used by igmp_ip_output_if)
2236  
2237 2009-05-06 Simon Goldschmidt
2238 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
2239 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
2240  
2241 2009-05-05 Simon Goldschmidt
2242 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
2243 to crash
2244  
2245 2009-05-04 Simon Goldschmidt
2246 * init.c: snmp was not initialized in lwip_init()
2247  
2248 2009-05-04 Frédéric Bernon
2249 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
2250  
2251 2009-05-03 Simon Goldschmidt
2252 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
2253 (and unsent->next == NULL)
2254  
2255 2009-05-02 Simon Goldschmidt
2256 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
2257 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
2258  
2259 2009-05-02 Simon Goldschmidt
2260 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
2261  
2262 2009-05-01 Simon Goldschmidt
2263 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
2264  
2265 2009-05-01 Simon Goldschmidt
2266 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
2267  
2268 2009-04-29 Frédéric Bernon
2269 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
2270 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
2271 of broadcast packets even when this option wasn't set. Port maintainers
2272 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
2273 If you want this option also filter broadcast on recv operations, you also
2274 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
2275  
2276 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
2277 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
2278 DHCP/AUTOIP cooperation
2279  
2280 2009-04-25 Simon Goldschmidt, Oleg Tyshev
2281 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
2282 Fixed by sorting the unsent and unacked queues (segments are inserted at the
2283 right place in tcp_output and tcp_rexmit).
2284  
2285 2009-04-25 Simon Goldschmidt
2286 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
2287 when debugging": memp_sizes contained the wrong sizes (including sanity
2288 regions); memp pools for MEM_USE_POOLS were too small
2289  
2290 2009-04-24 Simon Goldschmidt, Frédéric Bernon
2291 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
2292 behavior, with with ip address string not ended by a '\0', a space or a
2293 end of line)
2294  
2295 2009-04-19 Simon Goldschmidt
2296 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
2297 pcb->err is called, not pcb->connected (with an error code).
2298  
2299 2009-04-19 Simon Goldschmidt
2300 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
2301 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
2302  
2303 2009-04-19 Simon Goldschmidt
2304 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
2305 in the header pbuf, not the data pbuf)
2306  
2307 2009-04-18 Simon Goldschmidt
2308 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
2309  
2310 2009-04-15 Simon Goldschmidt
2311 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
2312  
2313 2009-04-15 Simon Goldschmidt
2314 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
2315  
2316 2009-04-15 Simon Goldschmidt
2317 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
2318 ip_hinted_output() (for smaller code mainly)
2319  
2320 2009-04-15 Simon Goldschmidt
2321 * inet.c: patch #6765: Supporting new line characters in inet_aton()
2322  
2323 2009-04-15 Simon Goldschmidt
2324 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
2325 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
2326 is big enough in dhcp_start
2327  
2328 2009-04-15 Simon Goldschmidt
2329 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
2330  
2331 2009-04-15 Simon Goldschmidt
2332 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
2333  
2334 2009-04-15 Simon Goldschmidt
2335 * sockets.c: bug #26121: set_errno can be overridden
2336  
2337 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
2338 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
2339 LWIP_TCP==0
2340  
2341 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
2342 * tcp.h: Patch#6802 Add do-while-clauses to those function like
2343 macros in tcp.h
2344  
2345 2009-03-31 Kieran Mansley
2346 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
2347 updates are calculated and sent (BUG20515)
2348  
2349 * tcp_in.c: cope with SYN packets received during established states,
2350 and retransmission of initial SYN.
2351  
2352 * tcp_out.c: set push bit correctly when tcp segments are merged
2353  
2354 2009-03-27 Kieran Mansley
2355 * tcp_out.c set window correctly on probes (correcting change made
2356 yesterday)
2357  
2358 2009-03-26 Kieran Mansley
2359 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
2360 connections where no reset required (bug #25622)
2361  
2362 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
2363 (bug #20779)
2364  
2365 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
2366 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
2367 too small depending on MEM_ALIGNMENT
2368  
2369 2009-02-16 Simon Goldschmidt
2370 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
2371 converted size argument of netconn_write to 'size_t'
2372  
2373 2009-02-16 Simon Goldschmidt
2374 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
2375 by moving accept callback function pointer to TCP_PCB_COMMON
2376  
2377 2009-02-12 Simon Goldschmidt
2378 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
2379 option)
2380  
2381 2009-02-11 Simon Goldschmidt
2382 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
2383  
2384 2009-02-11 Simon Goldschmidt
2385 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
2386 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
2387  
2388 2009-02-10 Simon Goldschmidt
2389 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
2390 Accepts_pending is decrease on a corresponding listen pcb when a connection
2391 in state SYN_RCVD is close.
2392  
2393 2009-01-28 Jonathan Larmour
2394 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
2395 out of pool pbufs.
2396  
2397 2008-12-19 Simon Goldschmidt
2398 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
2399  
2400 2008-12-10 Tamas Somogyi, Frédéric Bernon
2401 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
2402 port uses deleted netbuf.
2403  
2404 2008-10-18 Simon Goldschmidt
2405 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
2406 in tcp_parseopt
2407  
2408 2008-10-15 Simon Goldschmidt
2409 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
2410 by packing the struct ip_reass_helper.
2411  
2412 2008-10-03 David Woodhouse, Jonathan Larmour
2413 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
2414  
2415 2008-10-02 Jonathan Larmour
2416 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
2417 padding is included.
2418  
2419 2008-09-30 Jonathan Larmour
2420 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
2421 assertion check that addrlen isn't NULL.
2422  
2423 2008-09-30 Jonathan Larmour
2424 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
2425  
2426 2008-08-26 Simon Goldschmidt
2427 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
2428 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
2429  
2430 2008-08-14 Simon Goldschmidt
2431 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
2432 tcp_close returns != ERR_OK)
2433  
2434 2008-07-08 Frédéric Bernon
2435 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
2436 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
2437  
2438 2008-06-24 Jonathan Larmour
2439 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
2440 if tcp_seg_copy fails.
2441  
2442 2008-06-17 Simon Goldschmidt
2443 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
2444 and created defines for swapping bytes and folding u32 to u16.
2445  
2446 2008-05-30 Kieran Mansley
2447 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
2448 rather than rcv_ann_wnd when deciding if packets are in-window.
2449 Contributed by <arasmussen@consultant.datasys.swri.edu>
2450  
2451 2008-05-30 Kieran Mansley
2452 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
2453 passing as function pointers when MEM_LIBC_MALLOC is defined.
2454  
2455 2008-05-09 Jonathan Larmour
2456 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
2457 stop it being treated as a fatal error.
2458  
2459 2008-04-15 Simon Goldschmidt
2460 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
2461 (flag now cleared)
2462  
2463 2008-03-27 Simon Goldschmidt
2464 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
2465 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
2466 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
2467 or heap memory from interrupt context
2468  
2469 2008-03-26 Simon Goldschmidt
2470 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
2471 host sent a zero mss as TCP option.
2472  
2473  
2474 (STABLE-1.3.0)
2475  
2476 ++ New features:
2477  
2478 2008-03-10 Jonathan Larmour
2479 * inet_chksum.c: Allow choice of one of the sample algorithms to be
2480 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
2481  
2482 2008-01-22 Frédéric Bernon
2483 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
2484 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
2485  
2486 2008-01-14 Frédéric Bernon
2487 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
2488 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
2489 tcp_recv callback (see rawapi.txt).
2490  
2491 2008-01-14 Frédéric Bernon, Marc Chaland
2492 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
2493  
2494 2008-01-12 Frédéric Bernon
2495 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
2496 netconn::sem per netconn::op_completed like suggested for the task #7490
2497 "Add return value to sys_mbox_post".
2498  
2499 2008-01-12 Frédéric Bernon
2500 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
2501 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
2502 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
2503  
2504 2008-01-10 Frédéric Bernon
2505 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
2506 "Add return value to sys_mbox_post". tcpip_callback is always defined as
2507 "blocking" ("block" parameter = 1).
2508  
2509 2008-01-10 Frédéric Bernon
2510 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
2511 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
2512 "Add return value to sys_mbox_post".
2513  
2514 2008-01-05 Frédéric Bernon
2515 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
2516 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
2517 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
2518 indicate the number of pointers query by the mailbox. There is three defines
2519 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
2520 netconn::acceptmbox. Port maintainers, you can decide to just add this new
2521 parameter in your implementation, but to ignore it to keep the previous behavior.
2522 The new sys_mbox_trypost function return a value to know if the mailbox is
2523 full or if the message is posted. Take a look to sys_arch.txt for more details.
2524 This new function is used in tcpip_input (so, can be called in an interrupt
2525 context since the function is not blocking), and in recv_udp and recv_raw.
2526  
2527 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
2528 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
2529 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
2530 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
2531 documentation in the rawapi.txt file.
2532  
2533 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2534 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
2535  
2536 2007-12-31 Frédéric Bernon, Luca Ceresoli
2537 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
2538 in autoip". The change in etharp_raw could be removed, since all calls to
2539 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
2540 wrong in the future.
2541  
2542 2007-12-30 Frédéric Bernon, Tom Evans
2543 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
2544 Filtering" reported by Tom Evans.
2545  
2546 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
2547 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
2548 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
2549 applications have to call 'tcp_accepted(pcb)' in their accept callback to
2550 keep accepting new connections.
2551  
2552 2007-12-13 Frédéric Bernon
2553 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
2554 by err_t type. Add a new err_t code "ERR_INPROGRESS".
2555  
2556 2007-12-12 Frédéric Bernon
2557 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
2558 are the one which have ram usage.
2559  
2560 2007-12-05 Frédéric Bernon
2561 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
2562 set of variables (=0) or a local one (=1). In this last case, your port should
2563 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
2564 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
2565  
2566 2007-12-03 Simon Goldschmidt
2567 * ip.c: ip_input: check if a packet is for inp first before checking all other
2568 netifs on netif_list (speeds up packet receiving in most cases)
2569  
2570 2007-11-30 Simon Goldschmidt
2571 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
2572 UDP: move a (connected) pcb selected for input to the front of the list of
2573 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
2574 a packet.
2575  
2576 2007-11-28 Simon Goldschmidt
2577 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
2578  
2579 2007-11-25 Simon Goldschmidt
2580 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
2581 algorithm.
2582  
2583 2007-11-24 Simon Goldschmidt
2584 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
2585 to the new file netdb.c; included lwip_getaddrinfo.
2586  
2587 2007-11-21 Simon Goldschmidt
2588 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
2589 based on the MTU of the netif used to send. Enabled by default. Disable by
2590 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
2591  
2592 2007-11-19 Frédéric Bernon
2593 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
2594 received match the name query), implement DNS_USES_STATIC_BUF (the place where
2595 copy dns payload to parse the response), return an error if there is no place
2596 for a new query, and fix some minor problems.
2597  
2598 2007-11-16 Simon Goldschmidt
2599 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
2600 removed files: core/inet.c, core/inet6.c
2601 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
2602 inet and chksum part; changed includes in all lwIP files as appropriate
2603  
2604 2007-11-16 Simon Goldschmidt
2605 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
2606 dns resolver function for netconn api (netconn_gethostbyname) and socket api
2607 (gethostbyname/gethostbyname_r).
2608  
2609 2007-11-15 Jim Pettinato, Frédéric Bernon
2610 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
2611 requests with RAW api interface. Initialization is done in lwip_init() with
2612 build time options. DNS timer is added in tcpip_thread context. DHCP can set
2613 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
2614 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
2615 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
2616 list with points to improve.
2617  
2618 2007-11-06 Simon Goldschmidt
2619 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
2620 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
2621 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
2622  
2623 2007-11-06 Simon Goldschmidt
2624 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
2625 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
2626 implementation from netconn api applications.
2627  
2628 2007-11-03 Frédéric Bernon
2629 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
2630 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
2631 by default). Netconn API users can use the netconn_recv_bufsize macro to access
2632 it. This is a first release which have to be improve for TCP. Note it used the
2633 netconn::recv_avail which need to be more "thread-safe" (note there is already
2634 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
2635  
2636 2007-11-01 Frédéric Bernon, Marc Chaland
2637 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
2638 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
2639 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
2640 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
2641 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
2642  
2643 2007-10-24 Frédéric Bernon
2644 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
2645 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
2646 some code (like we have talk in "patch #5919 : Create compile switch to remove
2647 select code"), but it could be done later.
2648  
2649 2007-10-08 Simon Goldschmidt
2650 * many files: Changed initialization: many init functions are not needed any
2651 more since we now rely on the compiler initializing global and static
2652 variables to zero!
2653  
2654 2007-10-06 Simon Goldschmidt
2655 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
2656 to enqueue the received pbufs so that multiple packets can be reassembled
2657 simultaneously and no static reassembly buffer is needed.
2658  
2659 2007-10-05 Simon Goldschmidt
2660 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
2661 all netifs (or ports) can use it.
2662  
2663 2007-10-05 Frédéric Bernon
2664 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
2665 common function to reduce a little bit the footprint (for all functions using
2666 only the "netif" parameter).
2667  
2668 2007-10-03 Frédéric Bernon
2669 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
2670 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
2671 a little bit the footprint (for all functions using only the "netif" parameter).
2672  
2673 2007-09-15 Frédéric Bernon
2674 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
2675 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
2676 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
2677 IP_MULTICAST_TTL and IP_MULTICAST_IF.
2678  
2679 2007-09-10 Frédéric Bernon
2680 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
2681 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
2682 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
2683 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
2684 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
2685 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
2686 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
2687 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
2688 when it's queried (any direct call to "sysuptime" is changed by a call to
2689 snmp_get_sysuptime).
2690  
2691 2007-09-09 Frédéric Bernon, Bill Florac
2692 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
2693 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
2694 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
2695 igmp_report_groups() is now called inside netif_set_link_up() (need to have
2696 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
2697 the next query message to receive the matching multicast streams).
2698  
2699 2007-09-08 Frédéric Bernon
2700 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
2701 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
2702 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
2703 Enable to access to these fields with LWIP_TCP=0.
2704  
2705 2007-09-05 Frédéric Bernon
2706 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
2707 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
2708 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
2709 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
2710 help to reduce footprint, and to reduce "visibility" on the Internet.
2711  
2712 2007-09-05 Frédéric Bernon, Bill Florac
2713 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
2714 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
2715 parameters have to be provided: a task name, and a task stack size. For this
2716 one, since it's platform dependant, you could define the best one for you in
2717 your lwipopts.h. For port maintainers, you can just add these new parameters
2718 in your sys_arch.c file, and but it's not mandatory, use them in your OS
2719 specific functions.
2720  
2721 2007-09-05 Frédéric Bernon
2722 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
2723 inside init.c for task #7142 "Sanity check user-configurable values".
2724  
2725 2007-09-04 Frédéric Bernon, Bill Florac
2726 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
2727 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
2728 value). It will avoid potential fragmentation problems, use a counter to know
2729 how many times a group is used on an netif, and free it when all applications
2730 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
2731 check if LWIP_IGMP!=0).
2732  
2733 2007-09-03 Frédéric Bernon
2734 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
2735 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
2736 the netif's "init" function). Use the "imr_interface" field (for socket layer)
2737 and/or the "interface" field (for netconn layer), for join/leave operations.
2738 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
2739 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
2740  
2741 2007-08-30 Frédéric Bernon
2742 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
2743 from api/api_lib". Now netbuf API is independant of netconn, and can be used
2744 with other API (application based on raw API, or future "socket2" API). Ports
2745 maintainers just have to add src/api/netbuf.c in their makefile/projects.
2746  
2747 2007-08-30 Frédéric Bernon, Jonathan Larmour
2748 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
2749 user-configurable values".
2750  
2751 2007-08-29 Frédéric Bernon
2752 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
2753 igmp_start is call inside netif_add. Now, igmp initialization is in the same
2754 spirit than the others modules. Modify some IGMP debug traces.
2755  
2756 2007-08-29 Frédéric Bernon
2757 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
2758 Add lwip_init function to regroup all modules initializations, and to provide
2759 a place to add code for task #7142 "Sanity check user-configurable values".
2760 Ports maintainers should remove direct initializations calls from their code,
2761 and add init.c in their makefiles. Note that lwip_init() function is called
2762 inside tcpip_init, but can also be used by raw api users since all calls are
2763 disabled when matching options are disabled. Also note that their is new options
2764 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
2765  
2766 2007-08-26 Marc Boucher
2767 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
2768 since they can under certain circumstances be called with an invalid conn
2769 pointer after the connection has been closed (and conn has been freed).
2770  
2771 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
2772 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
2773 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
2774  
2775 2007-08-22 Frédéric Bernon
2776 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
2777 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
2778  
2779 2007-08-22 Frédéric Bernon
2780 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
2781 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
2782 name is tcpip_input (we keep the name of 1.2.0 function).
2783  
2784 2007-08-17 Jared Grubb
2785 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
2786 settings into new memp_std.h and optional user file lwippools.h. This adds
2787 more dynamic mempools, and allows the user to create an arbitrary number of
2788 mempools for mem_malloc.
2789  
2790 2007-08-16 Marc Boucher
2791 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
2792 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
2793 close the connection.
2794  
2795 2007-08-16 Marc Boucher
2796 * sockets.c: lwip_accept(): check netconn_peer() error return.
2797  
2798 2007-08-16 Marc Boucher
2799 * mem.c, mem.h: Added mem_calloc().
2800  
2801 2007-08-16 Marc Boucher
2802 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
2803 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
2804 and starving other message types.
2805 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
2806  
2807 2007-08-16 Marc Boucher
2808 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
2809 type and flgs (later renamed to flags).
2810 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
2811 Improved lwip_recvfrom(). TCP push now propagated.
2812  
2813 2007-08-16 Marc Boucher
2814 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
2815 provided by etharp.
2816  
2817 2007-08-16 Marc Boucher
2818 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
2819 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
2820 Added PPPoE support and various PPP improvements.
2821  
2822 2007-07-25 Simon Goldschmidt
2823 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
2824 making netbuf_copy_partial use this function.
2825  
2826 2007-07-25 Simon Goldschmidt
2827 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
2828 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
2829 other stacks.
2830  
2831 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
2832 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
2833 a link callback in the netif struct, and functions to handle it. Be carefull
2834 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
2835 if you want to be sure to be compatible with future changes...
2836  
2837 2007-06-30 Frédéric Bernon
2838 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
2839  
2840 2007-06-21 Simon Goldschmidt
2841 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
2842 LWIP_AUTOIP =0 and =1 to remove redundant code.
2843  
2844 2007-06-21 Simon Goldschmidt
2845 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
2846 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
2847 heap. This both prevents memory fragmentation and gives a higher speed
2848 at the cost of more memory consumption. Turned off by default.
2849  
2850 2007-06-21 Simon Goldschmidt
2851 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
2852 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
2853 int to be able to send a bigger buffer than 64K with one time (mainly
2854 used from lwip_send).
2855  
2856 2007-06-21 Simon Goldschmidt
2857 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
2858 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
2859  
2860 2007-06-21 Simon Goldschmidt
2861 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
2862 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
2863 changes on low memory or empty send-buffer.
2864  
2865 2007-06-18 Simon Goldschmidt
2866 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
2867 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
2868 used for ethernet and struct eth_addr already had a defined length of 6).
2869  
2870 2007-06-17 Simon Goldschmidt
2871 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
2872 to disable UDP checksum generation on transmit.
2873  
2874 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2875 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
2876 pointers or parameters, and let the possibility to redefined it in cc.h. Use
2877 this macro to check "conn" parameter in api_msg.c functions.
2878  
2879 2007-06-11 Simon Goldschmidt
2880 * sockets.c, sockets.h: Added UDP lite support for sockets
2881  
2882 2007-06-10 Simon Goldschmidt
2883 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
2884 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
2885 size)
2886  
2887 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
2888 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
2889 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
2890 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
2891 (see TODO mark in the source code).
2892  
2893 2007-06-09 Simon Goldschmidt
2894 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
2895 etharp_output() to match netif->output so etharp_output() can be used
2896 directly as netif->output to save one function call.
2897  
2898 2007-06-08 Simon Goldschmidt
2899 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
2900 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
2901 added initialization of those to ethernetif, slipif and loopif.
2902  
2903 2007-05-18 Simon Goldschmidt
2904 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
2905 (defaulting to off for now) that can be set to 0 to send fragmented
2906 packets by passing PBUF_REFs down the stack.
2907  
2908 2007-05-23 Frédéric Bernon
2909 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
2910 connections, such present in patch #5959.
2911  
2912 2007-05-23 Frédéric Bernon
2913 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
2914 code in only one part...
2915  
2916 2007-05-18 Simon Goldschmidt
2917 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
2918 elements to overflow. This is achieved by adding some bytes before and after
2919 each pool element (increasing their size, of course), filling them with a
2920 prominent value and checking them on freeing the element.
2921 Set it to 2 to also check every element in every pool each time memp_malloc()
2922 or memp_free() is called (slower but more helpful).
2923  
2924 2007-05-10 Simon Goldschmidt
2925 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
2926 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2927 code size.
2928  
2929 2007-05-11 Frédéric Bernon
2930 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2931 Include a function pointer instead of a table index in the message to reduce
2932 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2933 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2934  
2935 2007-05-10 Simon Goldschmidt
2936 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2937 \ extern "C" {' in all header files. Now you can write your application using
2938 the lwIP stack in C++ and simply #include the core files. Note I have left
2939 out the netif/ppp/*h header files for now, since I don't know which files are
2940 included by applications and which are for internal use only.
2941  
2942 2007-05-09 Simon Goldschmidt
2943 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2944 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2945 situations where some compilers might inline the copy and save a function
2946 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2947  
2948 2007-05-08 Simon Goldschmidt
2949 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2950 to be overriden in case the C-library malloc implementation is not protected
2951 against concurrent access.
2952  
2953 2007-05-04 Simon Goldschmidt (Atte Kojo)
2954 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2955 multiple packets to the same host.
2956  
2957 2007-05-04 Frédéric Bernon, Jonathan Larmour
2958 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2959 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2960 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2961 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2962 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2963 these fields are now renamed "addr" & "port".
2964  
2965 2007-04-11 Jonathan Larmour
2966 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2967 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2968 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2969 by the port in sys_arch.h if desired.
2970  
2971 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2972 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2973 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2974 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2975  
2976 2007-04-05 Frédéric Bernon
2977 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2978  
2979 2007-04-04 Simon Goldschmidt
2980 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2981 use this for and architecture-independent form to tell the compiler you intentionally
2982 are not using this variable. Can be overriden in cc.h.
2983  
2984 2007-03-28 Frédéric Bernon
2985 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2986 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2987 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2988 It will be used by DHCP to register a client hostname, but can also be use when you call
2989 snmp_set_sysname.
2990  
2991 2007-03-28 Frédéric Bernon
2992 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2993 initialize a network interface's flag with. It tell this interface is an ethernet
2994 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2995 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2996  
2997 2007-03-26 Frédéric Bernon, Jonathan Larmour
2998 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2999 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
3000 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
3001 is done in tcpip_init function.
3002  
3003 2007-03-22 Frédéric Bernon
3004 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
3005 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
3006 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
3007 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
3008 but never used. Fix msg_in.c with the correct #if test for a stat display.
3009  
3010 2007-03-21 Kieran Mansley
3011 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
3012 Provides callback on netif up/down state change.
3013  
3014 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
3015 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
3016 ip.c, netif.h, tcpip.c, opt.h:
3017 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
3018 filter per all network interfaces. Declare a new function in netif to enable to
3019 control the MAC filter (to reduce lwIP traffic processing).
3020  
3021 2007-03-11 Frédéric Bernon
3022 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
3023 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
3024 unless you know what you're doing (default are RFC1122 compliant). Note
3025 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
3026  
3027 2007-03-08 Frédéric Bernon
3028 * tcp.h: Keepalive values can be configured at compile time, but don't change
3029 this unless you know what you're doing (default are RFC1122 compliant).
3030  
3031 2007-03-08 Frédéric Bernon
3032 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
3033 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
3034 on UDP sockets/netconn.
3035  
3036 2007-03-08 Simon Goldschmidt
3037 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
3038  
3039 2007-03-06 Frédéric Bernon
3040 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
3041 Implement SO_RCVTIMEO on UDP sockets/netconn.
3042  
3043 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
3044 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
3045 on the stack and remove the API msg type from memp
3046  
3047 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
3048 * sockets.h, sockets.c: Move socket initialization to new
3049 lwip_socket_init() function.
3050 NOTE: this changes the API with ports. Ports will have to be
3051 updated to call lwip_socket_init() now.
3052  
3053 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
3054 * api_lib.c: Use memcpy in netbuf_copy_partial.
3055  
3056  
3057 ++ Bug fixes:
3058  
3059 2008-03-17 Frédéric Bernon, Ed Kerekes
3060 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
3061 some problems to fill the IP header on some targets, use now the
3062 ip.h macros to do it).
3063  
3064 2008-03-13 Frédéric Bernon
3065 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
3066 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
3067 TCP connection caused a crash. Note that using (lwip_)recvfrom
3068 like this is a bit slow and that using (lwip)getpeername is the
3069 good lwip way to do it (so, using recv is faster on tcp sockets).
3070  
3071 2008-03-12 Frédéric Bernon, Jonathan Larmour
3072 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
3073 recv_raw() does not consume data", and the ping sample (with
3074 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
3075 returned the IP payload, without the IP header).
3076  
3077 2008-03-04 Jonathan Larmour
3078 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
3079 and/or warnings on some systems where mem_size_t and size_t differ.
3080 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
3081  
3082 2008-03-04 Kieran Mansley (contributions by others)
3083 * Numerous small compiler error/warning fixes from contributions to
3084 mailing list after 1.3.0 release candidate made.
3085  
3086 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
3087 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
3088  
3089 2008-01-15 Kieran Mansley
3090 * tcp_out.c: BUG20511. Modify persist timer to start when we are
3091 prevented from sending by a small send window, not just a zero
3092 send window.
3093  
3094 2008-01-09 Jonathan Larmour
3095 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
3096 conflict with Linux system headers.
3097  
3098 2008-01-06 Jonathan Larmour
3099 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
3100 address entirely on receiving a DHCPNAK, and restarting discovery.
3101  
3102 2007-12-21 Simon Goldschmidt
3103 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
3104 is not protected" by using new macros for interlocked access to modify/test
3105 netconn->recv_avail.
3106  
3107 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
3108 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
3109  
3110 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
3111 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
3112 of silly window avoidance and prevent lwIP from shrinking the window)
3113  
3114 2007-12-04 Simon Goldschmidt
3115 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
3116 data packet was lost): add assert that all segment lists are empty in
3117 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
3118 state from LAST_ACK in tcp_process
3119  
3120 2007-12-02 Simon Goldschmidt
3121 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
3122 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
3123 has to be set to 0 in lwipopts.h
3124  
3125 2007-12-02 Simon Goldschmidt
3126 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
3127 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
3128 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
3129 This is a fix for thread-safety and allocates all items needed for a netconn
3130 when the netconn is created.
3131  
3132 2007-11-30 Simon Goldschmidt
3133 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
3134 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
3135 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
3136 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
3137  
3138 2007-11-27 Simon Goldschmidt
3139 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
3140 letting ip_route only use netifs that are up.
3141  
3142 2007-11-27 Simon Goldschmidt
3143 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
3144 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
3145 sockets block most operations once they have seen a fatal error.
3146  
3147 2007-11-27 Simon Goldschmidt
3148 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
3149 netif to send as an argument (to be able to send on netifs that are down).
3150  
3151 2007-11-26 Simon Goldschmidt
3152 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
3153 arrive out-of-order
3154  
3155 2007-11-21 Simon Goldschmidt
3156 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
3157 Fixed the nagle algorithm; nagle now also works for all raw API applications
3158 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
3159  
3160 2007-11-12 Frédéric Bernon
3161 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
3162 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
3163 context in do_getaddr.
3164  
3165 2007-11-10 Simon Goldschmidt
3166 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
3167 happen any time). Now the packet simply isn't enqueued when out of memory.
3168  
3169 2007-11-01 Simon Goldschmidt
3170 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
3171 TCP_MSS if that is smaller) as long as no MSS option is received from the
3172 remote host.
3173  
3174 2007-11-01 Simon Goldschmidt
3175 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
3176 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
3177 sending our configured TCP_MSS instead of the one received).
3178  
3179 2007-11-01 Simon Goldschmidt
3180 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
3181 calculated based on the configured TCP_MSS, not on the MSS option received
3182 with SYN+ACK.
3183  
3184 2007-10-09 Simon Goldschmidt
3185 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
3186 short and also was generated wrong if checksum coverage != tot_len;
3187 receive: checksum was calculated wrong if checksum coverage != tot_len
3188  
3189 2007-10-08 Simon Goldschmidt
3190 * mem.c: lfree was not updated in mem_realloc!
3191  
3192 2007-10-07 Frédéric Bernon
3193 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
3194 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
3195 this change cause an API breakage for netconn_addr, since a parameter
3196 type change. Any compiler should cause an error without any changes in
3197 yours netconn_peer calls (so, it can't be a "silent change"). It also
3198 reduce a little bit the footprint for socket layer (lwip_getpeername &
3199 lwip_getsockname use now a common lwip_getaddrname function since
3200 netconn_peer & netconn_addr have the same parameters).
3201  
3202 2007-09-20 Simon Goldschmidt
3203 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
3204 by checking tcp_tw_pcbs also
3205  
3206 2007-09-19 Simon Goldschmidt
3207 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
3208  
3209 2007-09-15 Mike Kleshov
3210 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
3211  
3212 2007-09-06 Frédéric Bernon
3213 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
3214 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
3215 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
3216 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
3217  
3218 2007-08-30 Frédéric Bernon
3219 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
3220 and fix some coding style.
3221  
3222 2007-08-28 Frédéric Bernon
3223 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
3224 kind of packets. These packets are considered like Ethernet packets (payload
3225 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
3226 are considered like IP packets (payload pointing to iphdr).
3227  
3228 2007-08-27 Frédéric Bernon
3229 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
3230 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
3231 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
3232  
3233 2007-08-24 Kieran Mansley
3234 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
3235 compiler (Paradigm C++)
3236  
3237 2007-08-09 Frédéric Bernon, Bill Florac
3238 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
3239 Introduce IGMP_STATS to centralize statistics management.
3240  
3241 2007-08-09 Frédéric Bernon, Bill Florac
3242 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
3243 packet on a udp pcb binded on an netif's IP address, and not on "any".
3244  
3245 2007-08-09 Frédéric Bernon, Bill Florac
3246 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
3247 This is mainly on using lookup/lookfor, and some coding styles...
3248  
3249 2007-07-26 Frédéric Bernon (and "thedoctor")
3250 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
3251  
3252 2007-07-25 Simon Goldschmidt
3253 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
3254 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
3255 (tcp_output is called again later from tcp timers).
3256  
3257 2007-07-25 Simon Goldschmidt
3258 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
3259 copy_from_pbuf, which illegally modified the given pbuf.
3260  
3261 2007-07-25 Simon Goldschmidt
3262 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
3263 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
3264  
3265 2007-07-24 Simon Goldschmidt
3266 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
3267 correct state (must be CLOSED).
3268  
3269 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
3270 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
3271 allocation. It now returns NULL.
3272  
3273 2007-07-13 Frédéric Bernon
3274 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
3275 all error cases.
3276  
3277 2007-07-13 Frédéric Bernon
3278 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
3279 because current code doesn't follow rawapi.txt documentation.
3280  
3281 2007-07-13 Kieran Mansley
3282 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
3283 out of sequence processing of received packets
3284  
3285 2007-07-03 Simon Goldschmidt
3286 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
3287 assumption is made that this pbuf is in one piece (i.e. not chained). These
3288 assumptions clash with the possibility of converting to fully pool-based
3289 pbuf implementations, where PBUF_RAM pbufs might be chained.
3290  
3291 2007-07-03 Simon Goldschmidt
3292 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
3293 when closing tcp netconns: removed conn->sem, less context switches when
3294 closing, both netconn_close and netconn_delete should safely close tcp
3295 connections.
3296  
3297 2007-07-02 Simon Goldschmidt
3298 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
3299 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
3300 to cache ARP table indices with each pcb instead of single-entry cache for
3301 the complete stack.
3302  
3303 2007-07-02 Simon Goldschmidt
3304 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
3305 warnings when assigning to smaller types.
3306  
3307 2007-06-28 Simon Goldschmidt
3308 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
3309  
3310 2007-06-28 Simon Goldschmidt
3311 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
3312 a segment contained chained pbufs)
3313  
3314 2007-06-28 Frédéric Bernon
3315 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
3316 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
3317 possible to define this macro in your own lwipopts.h to always use C library's
3318 rand(). Note that autoip_create_rand_addr doesn't use this macro.
3319  
3320 2007-06-28 Frédéric Bernon
3321 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
3322 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
3323 in api_lib/api_msg (use pointers and not type with table, etc...)
3324  
3325 2007-06-26 Simon Goldschmidt
3326 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
3327  
3328 2007-06-25 Simon Goldschmidt
3329 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
3330 for udp packets with no matching pcb.
3331  
3332 2007-06-25 Simon Goldschmidt
3333 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
3334 could get udp input packets if the remote side matched.
3335  
3336 2007-06-13 Simon Goldschmidt
3337 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
3338 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
3339  
3340 2007-06-13 Simon Goldschmidt
3341 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
3342 -> netconn_new_..() does not allocate a new connection for unsupported
3343 protocols.
3344  
3345 2007-06-13 Frédéric Bernon, Simon Goldschmidt
3346 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
3347 conn->err was reset to ERR_OK without any reasons (and error was lost)...
3348  
3349 2007-06-13 Frédéric Bernon, Matthias Weisser
3350 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
3351 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
3352 some macro names collision with some OS macros.
3353  
3354 2007-06-11 Simon Goldschmidt
3355 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
3356 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
3357 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
3358 UDP & UDP Lite.
3359  
3360 2007-06-11 Srinivas Gollakota & Oleg Tyshev
3361 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
3362 where TCP flags wasn't initialized in tcp_keepalive.
3363  
3364 2007-06-03 Simon Goldschmidt
3365 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
3366 registered, p->payload was modified without modifying p->len if sending
3367 icmp_dest_unreach() (had no negative effect but was definitively wrong).
3368  
3369 2007-06-03 Simon Goldschmidt
3370 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
3371 re-used the input pbuf even if that didn't have enough space to include the
3372 link headers. Now the space is tested and a new pbuf is allocated for the
3373 echo response packet if the echo request pbuf isn't big enough.
3374  
3375 2007-06-01 Simon Goldschmidt
3376 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
3377  
3378 2007-05-23 Frédéric Bernon
3379 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
3380 allocated by do_listen if success) and netconn_accept errors handling. In
3381 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
3382 by ASSERT, except for netconn_delete.
3383  
3384 2007-05-23 Frédéric Bernon
3385 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
3386 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
3387 directly close the recvmbox).
3388  
3389 2007-05-22 Simon Goldschmidt
3390 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
3391 bound but unconnected (and non-listening) tcp_pcbs.
3392  
3393 2007-05-22 Frédéric Bernon
3394 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
3395 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
3396 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
3397 like "sys_timeout" in their application threads.
3398  
3399 2007-05-22 Frédéric Bernon
3400 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
3401 which parameters are used by which do_xxx function, and to avoid "misusing"
3402 parameters (patch #5938).
3403  
3404 2007-05-22 Simon Goldschmidt
3405 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
3406 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
3407 is only 8 bits wide. This affects the api, as there, the protocol was
3408 u16_t, too.
3409  
3410 2007-05-18 Simon Goldschmidt
3411 * memp.c: addition to patch #5913: smaller pointer was returned but
3412 memp_memory was the same size -> did not save memory.
3413  
3414 2007-05-16 Simon Goldschmidt
3415 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
3416 != ERR_OK.
3417  
3418 2007-05-16 Simon Goldschmidt
3419 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
3420 as the one of the netif used for sending to prevent sending from old
3421 addresses after a netif address gets changed (partly fixes bug #3168).
3422  
3423 2007-05-16 Frédéric Bernon
3424 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
3425 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
3426 tcpip_init) because we have to be sure that network interfaces are already
3427 added (mac filter is updated only in igmp_init for the moment).
3428  
3429 2007-05-16 Simon Goldschmidt
3430 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
3431 into sys_arch_sem_wait calls to prevent timers from running while waiting
3432 for the heap. This fixes bug #19167.
3433  
3434 2007-05-13 Simon Goldschmidt
3435 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
3436 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
3437 tcp.h to sockets.h.
3438  
3439 2007-05-07 Simon Goldschmidt
3440 * mem.c: Another attempt to fix bug #17922.
3441  
3442 2007-05-04 Simon Goldschmidt
3443 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
3444 implementation so that it can be reused (don't allocate the target
3445 pbuf inside pbuf_copy()).
3446  
3447 2007-05-04 Simon Goldschmidt
3448 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
3449 to save a little RAM (next pointer of memp is not used while not in pool).
3450  
3451 2007-05-03 "maq"
3452 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
3453 (patch #3574).
3454  
3455 2007-04-23 Simon Goldschmidt
3456 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
3457 in NULL reference for incoming TCP packets". Loopif has to be configured
3458 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
3459 (multithreading environments, e.g. netif->input() = tcpip_input()) or
3460 putting packets on a list that is fed to the stack by calling loopif_poll()
3461 (single-thread / NO_SYS / polling environment where e.g.
3462 netif->input() = ip_input).
3463  
3464 2007-04-17 Jonathan Larmour
3465 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
3466 the difference between two u16_t's.
3467 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
3468 MEMP_NUM_NETCONN in sockets.c right now.
3469  
3470 2007-04-12 Jonathan Larmour
3471 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
3472  
3473 2007-04-12 Kieran Mansley
3474 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
3475 timer is reset to fix bug#19434, with help from Oleg Tyshev.
3476  
3477 2007-04-11 Simon Goldschmidt
3478 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
3479 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
3480 pbuf.c: removed functions no needed any more (by etharp).
3481  
3482 2007-04-11 Kieran Mansley
3483 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
3484 "Constant is long" warnings with 16bit compilers. Contributed by
3485 avatar@mmlab.cse.yzu.edu.tw
3486  
3487 2007-04-05 Frédéric Bernon, Jonathan Larmour
3488 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
3489 the mailbox is active". Now, the post is only done during a connect, and do_send,
3490 do_write and do_join_leave_group don't do anything if a previous error was signaled.
3491  
3492 2007-04-03 Frédéric Bernon
3493 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
3494 packets. See patch #5834.
3495  
3496 2007-03-30 Frédéric Bernon
3497 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
3498 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
3499  
3500 2007-03-30 Frédéric Bernon
3501 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
3502 others environment defines (these were too "generic").
3503  
3504 2007-03-28 Frédéric Bernon
3505 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
3506 result and can cause a crash. lwip_send now check netbuf_ref result.
3507  
3508 2007-03-28 Simon Goldschmidt
3509 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
3510 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
3511 defined. This is the way it should have been already (looking at
3512 doc/sys_arch.txt)
3513  
3514 2007-03-28 Kieran Mansley
3515 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
3516 IP and TCP headers *and* physical link headers
3517  
3518 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
3519 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
3520 to send some garbage. It is not a definitive solution, but the patch does solve
3521 the problem for most cases.
3522  
3523 2007-03-22 Frédéric Bernon
3524 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
3525  
3526 2007-03-22 Frédéric Bernon
3527 * api_lib.c: somes resources couldn't be freed if there was errors during
3528 netconn_new_with_proto_and_callback.
3529  
3530 2007-03-22 Frédéric Bernon
3531 * ethernetif.c: update netif->input calls to check return value. In older ports,
3532 it's a good idea to upgrade them, even if before, there could be another problem
3533 (access to an uninitialized mailbox).
3534  
3535 2007-03-21 Simon Goldschmidt
3536 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
3537 by casting to unsigned).
3538  
3539 2007-03-21 Frédéric Bernon
3540 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
3541 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
3542 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
3543 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
3544 faster and more reliable communication between api_lib and tcpip.
3545  
3546 2007-03-21 Frédéric Bernon
3547 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
3548  
3549 2007-03-21 Frédéric Bernon
3550 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
3551  
3552 2007-03-21 Kieran Mansley
3553 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
3554 IP and TCP headers
3555  
3556 2007-03-21 Kieran Mansley
3557 * Fix all uses of pbuf_header to check the return value. In some
3558 cases just assert if it fails as I'm not sure how to fix them, but
3559 this is no worse than before when they would carry on regardless
3560 of the failure.
3561  
3562 2007-03-21 Kieran Mansley
3563 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
3564 comment out missing header include in icmp.c
3565  
3566 2007-03-20 Frédéric Bernon
3567 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
3568 synchronized with memp.h.
3569  
3570 2007-03-20 Frédéric Bernon
3571 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
3572 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
3573 network interfaces. Also fix a compiler warning.
3574  
3575 2007-03-20 Kieran Mansley
3576 * udp.c: Only try and use pbuf_header() to make space for headers if
3577 not a ROM or REF pbuf.
3578  
3579 2007-03-19 Frédéric Bernon
3580 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
3581 and api_msg_post().
3582  
3583 2007-03-19 Frédéric Bernon
3584 * Remove unimplemented "memp_realloc" function from memp.h.
3585  
3586 2007-03-11 Simon Goldschmidt
3587 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
3588 memory corruption.
3589  
3590 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
3591 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
3592 (missing `const' qualifier in socket functions), to get more compatible to
3593 standard POSIX sockets.
3594  
3595 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
3596 * sockets.c: Add asserts inside bind, connect and sendto to check input
3597 parameters. Remove excessive set_errno() calls after get_socket(), because
3598 errno is set inside of get_socket(). Move last sock_set_errno() inside
3599 lwip_close.
3600  
3601 2007-03-09 Simon Goldschmidt
3602 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
3603 was allocated too small.
3604  
3605 2007-03-06 Simon Goldschmidt
3606 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
3607 the stack from concurrent access.
3608  
3609 2007-03-06 Frédéric Bernon, Dmitry Potapov
3610 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
3611 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
3612  
3613 2007-03-06 Simon Goldschmidt
3614 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
3615 if IP_FRAG == 0 and IP_REASSEMBLY == 0
3616  
3617 2007-03-06 Frédéric Bernon, Simon Goldschmidt
3618 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
3619 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
3620 Allow to do ARP processing for incoming packets inside tcpip_thread
3621 (protecting ARP layer against concurrent access). You can also disable
3622 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
3623 Older ports have to use tcpip_ethinput.
3624  
3625 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
3626 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
3627 from pointer target type"
3628  
3629 2007-03-05 Frédéric Bernon
3630 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
3631 ETHARP_TRUST_IP_MAC, review SO_REUSE)
3632  
3633 2007-03-04 Frédéric Bernon
3634 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
3635 referenced.
3636  
3637 2007-03-04 Frédéric Bernon
3638 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
3639 Dmitry Potapov).
3640 The api_msg struct stay on the stack (not moved to netconn struct).
3641  
3642 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
3643 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
3644 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
3645 Also fixed cast warning in pbuf_alloc()
3646  
3647 2007-03-04 Simon Goldschmidt
3648 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
3649 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
3650  
3651 2007-03-03 Frédéric Bernon
3652 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
3653 It is static, and never used in udp.c except udp_init().
3654  
3655 2007-03-02 Simon Goldschmidt
3656 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
3657 tcpip_thread() to tcpip_init(). This way, raw API connections can be
3658 initialized before tcpip_thread is running (e.g. before OS is started)
3659  
3660 2007-03-02 Frédéric Bernon
3661 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
3662 interval.
3663  
3664 2007-02-28 Kieran Mansley
3665 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
3666 outside the region of the pbuf by pbuf_header()
3667  
3668 2007-02-28 Kieran Mansley
3669 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
3670 when supplied timeout is also non-zero
3671  
3672 (STABLE-1.2.0)
3673  
3674 2006-12-05 Leon Woestenberg
3675 * CHANGELOG: Mention STABLE-1.2.0 release.
3676  
3677 ++ New features:
3678  
3679 2006-12-01 Christiaan Simons
3680 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
3681 Note this is a workaround. Currently I have no other options left.
3682  
3683 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
3684 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
3685 to include/lwip/opt.h.
3686 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
3687 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
3688 * opt.h: Add above new options.
3689  
3690 2006-08-18 Christiaan Simons
3691 * tcp_{in,out}.c: added SNMP counters.
3692 * ipv4/ip.c: added SNMP counters.
3693 * ipv4/ip_frag.c: added SNMP counters.
3694  
3695 2006-08-08 Christiaan Simons
3696 * etharp.{c,h}: added etharp_find_addr() to read
3697 (stable) ethernet/IP address pair from ARP table
3698  
3699 2006-07-14 Christiaan Simons
3700 * mib_structs.c: added
3701 * include/lwip/snmp_structs.h: added
3702 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
3703  
3704 2006-07-06 Christiaan Simons
3705 * snmp/asn1_{enc,dec}.c added
3706 * snmp/mib2.c added
3707 * snmp/msg_{in,out}.c added
3708 * include/lwip/snmp_asn1.h added
3709 * include/lwip/snmp_msg.h added
3710 * doc/snmp_agent.txt added
3711  
3712 2006-03-29 Christiaan Simons
3713 * inet.c, inet.h: Added platform byteswap support.
3714 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
3715 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
3716  
3717 ++ Bug fixes:
3718  
3719 2006-11-30 Christiaan Simons
3720 * dhcp.c: Fixed false triggers of request_timeout.
3721  
3722 2006-11-28 Christiaan Simons
3723 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
3724  
3725 2006-10-11 Christiaan Simons
3726 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
3727 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
3728 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
3729 identifier from 170 to 136 (bug #17574).
3730  
3731 2006-10-10 Christiaan Simons
3732 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
3733  
3734 2006-08-17 Christiaan Simons
3735 * udp.c: Fixed bug #17200, added check for broadcast
3736 destinations for PCBs bound to a unicast address.
3737  
3738 2006-08-07 Christiaan Simons
3739 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
3740  
3741 2006-06-27 Christiaan Simons
3742 * api_msg.c: Applied patch for cold case (bug #11135).
3743 In accept_function() ensure newconn->callback is always initialized.
3744  
3745 2006-06-15 Christiaan Simons
3746 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
3747 facilitate printing of mem_size_t and u16_t statistics.
3748  
3749 2006-06-14 Christiaan Simons
3750 * api_msg.c: Applied patch #5146 to handle allocation failures
3751 in accept() by Kevin Lawson.
3752  
3753 2006-05-26 Christiaan Simons
3754 * api_lib.c: Removed conn->sem creation and destruction
3755 from netconn_write() and added sys_sem_new to netconn_new_*.
3756  
3757 (STABLE-1_1_1)
3758  
3759 2006-03-03 Christiaan Simons
3760 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
3761 access and added pbuf_alloc() return value checks.
3762  
3763 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
3764 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
3765 now handled by the checksum routine properly.
3766  
3767 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
3768 * pbuf.c: Fix alignment; pbuf_init() would not work unless
3769 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
3770  
3771 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
3772 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
3773 submitted by Mitrani Hiroshi.
3774  
3775 2005-12-15 Christiaan Simons
3776 * inet.c: Disabled the added summing routine to preserve code space.
3777  
3778 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
3779 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
3780 Added Curt McDowell's optimized checksumming routine for future
3781 inclusion. Need to create test case for unaliged, aligned, odd,
3782 even length combination of cases on various endianess machines.
3783  
3784 2005-12-09 Christiaan Simons
3785 * inet.c: Rewrote standard checksum routine in proper portable C.
3786  
3787 2005-11-25 Christiaan Simons
3788 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
3789 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
3790 u32_t, s32_t typedefs. This solves most debug word-length assumes.
3791  
3792 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
3793 * inet.c: Fixed unaligned 16-bit access in the standard checksum
3794 routine by Peter Jolasson.
3795 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
3796  
3797 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
3798 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
3799 * tcp_{out|in}.c: Applied patch fixing unaligned access.
3800  
3801 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
3802 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
3803  
3804 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
3805 * udp.c: UDP pcb->recv() was called even when it was NULL.
3806  
3807 (STABLE-1_1_0)
3808  
3809 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
3810 * etharp.*: Disabled multiple packets on the ARP queue.
3811 This clashes with TCP queueing.
3812  
3813 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
3814 * etharp.*: Fixed race condition from ARP request to ARP timeout.
3815 Halved the ARP period, doubled the period counts.
3816 ETHARP_MAX_PENDING now should be at least 2. This prevents
3817 the counter from reaching 0 right away (which would allow
3818 too little time for ARP responses to be received).
3819  
3820 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
3821 * dhcp.c: Decline messages were not multicast but unicast.
3822 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
3823 Do not try hard to insert arbitrary packet's source address,
3824 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
3825 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
3826 querying an address will see it appear in the cache (DHCP could
3827 suffer from this when a server invalidly gave an in-use address.)
3828 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
3829 comparing network addresses (identifiers), not the network masks
3830 themselves.
3831 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
3832 IP address actually belongs to the network of the given interface.
3833  
3834 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
3835 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
3836  
3837 (STABLE-1_1_0-RC1)
3838  
3839 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
3840 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
3841 even if one is already pending, if the rcv_wnd is above a threshold
3842 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
3843 delayed ACK in order to open the window if the stack is only receiving data.
3844  
3845 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
3846 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
3847  
3848 2004-08-20 Tony Mountifield <tony@softins.co.uk>
3849 * etharp.c: Make sure the first pbuf queued on an ARP entry
3850 is properly ref counted.
3851  
3852 2004-07-27 Tony Mountifield <tony@softins.co.uk>
3853 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
3854 warnings about comparison.
3855 * pbuf.c: Stopped compiler complaining of empty if statement
3856 when LWIP_DEBUGF() empty. Closed an unclosed comment.
3857 * tcp.c: Stopped compiler complaining of empty if statement
3858 when LWIP_DEBUGF() empty.
3859 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
3860 * inet.c: Added a couple of casts to quiet the compiler.
3861 No need to test isascii(c) before isdigit(c) or isxdigit(c).
3862  
3863 2004-07-22 Tony Mountifield <tony@softins.co.uk>
3864 * inet.c: Made data types consistent in inet_ntoa().
3865 Added casts for return values of checksum routines, to pacify compiler.
3866 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
3867 Small corrections to some debugging statements, to pacify compiler.
3868  
3869 2004-07-21 Tony Mountifield <tony@softins.co.uk>
3870 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
3871 * ethernetif.c Updated low_level_output() to match prototype for
3872 netif->linkoutput and changed low_level_input() similarly for consistency.
3873 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
3874 of raw_recv() in raw.h and so avoid compiler error.
3875 * sockets.c: Added trivial (int) cast to keep compiler happier.
3876 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
3877  
3878 (STABLE-1_0_0)
3879  
3880 ++ Changes:
3881  
3882 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
3883 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
3884 your cc.h file defines this either 1 or 0. If non-defined,
3885 defaults to 1.
3886 * .c: Added <string.h> and <errno.h> includes where used.
3887 * etharp.c: Made some array indices unsigned.
3888  
3889 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
3890 * netif.*: Added netif_set_up()/down().
3891 * dhcp.c: Changes to restart program flow.
3892  
3893 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
3894 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
3895 single-pass lookup for different candidates. Should exploit locality.
3896  
3897 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
3898 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
3899 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
3900 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
3901 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
3902  
3903 ++ Bug fixes:
3904  
3905 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
3906 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
3907 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
3908 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
3909 is to prefix the 14-bit Ethernet headers with two padding bytes.
3910  
3911 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
3912 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
3913 * etharp.c: Fixed the case where the packet that initiates the ARP request
3914 is not queued, and gets lost. Fixed the case where the packets destination
3915 address is already known; we now always queue the packet and perform an ARP
3916 request.
3917  
3918 (STABLE-0_7_0)
3919  
3920 ++ Bug fixes:
3921  
3922 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
3923 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
3924 * Fixed two possible NULL references in rare cases.
3925  
3926 (STABLE-0_6_6)
3927  
3928 ++ Bug fixes:
3929  
3930 * Fixed DHCP which did not include the IP address in DECLINE messages.
3931  
3932 ++ Changes:
3933  
3934 * etharp.c has been hauled over a bit.
3935  
3936 (STABLE-0_6_5)
3937  
3938 ++ Bug fixes:
3939  
3940 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3941 * Packets sent from ARP queue had invalid source hardware address.
3942  
3943 ++ Changes:
3944  
3945 * Pass-by ARP requests do now update the cache.
3946  
3947 ++ New features:
3948  
3949 * No longer dependent on ctype.h.
3950 * New socket options.
3951 * Raw IP pcb support.
3952  
3953 (STABLE-0_6_4)
3954  
3955 ++ Bug fixes:
3956  
3957 * Some debug formatters and casts fixed.
3958 * Numereous fixes in PPP.
3959  
3960 ++ Changes:
3961  
3962 * DEBUGF now is LWIP_DEBUGF
3963 * pbuf_dechain() has been re-enabled.
3964 * Mentioned the changed use of CVS branches in README.
3965  
3966 (STABLE-0_6_3)
3967  
3968 ++ Bug fixes:
3969  
3970 * Fixed pool pbuf memory leak in pbuf_alloc().
3971 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3972 Reported by Savin Zlobec.
3973  
3974 * PBUF_POOL chains had their tot_len field not set for non-first
3975 pbufs. Fixed in pbuf_alloc().
3976  
3977 ++ New features:
3978  
3979 * Added PPP stack contributed by Marc Boucher
3980  
3981 ++ Changes:
3982  
3983 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3984  
3985 * ARP queueuing now queues the latest packet instead of the first.
3986 This is the RFC recommended behaviour, but can be overridden in
3987 lwipopts.h.
3988  
3989 (0.6.2)
3990  
3991 ++ Bugfixes:
3992  
3993 * TCP has been fixed to deal with the new use of the pbuf->ref
3994 counter.
3995  
3996 * DHCP dhcp_inform() crash bug fixed.
3997  
3998 ++ Changes:
3999  
4000 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
4001 pbuf_refresh(). This has sped up pbuf pool operations considerably.
4002 Implemented by David Haas.
4003  
4004 (0.6.1)
4005  
4006 ++ New features:
4007  
4008 * The packet buffer implementation has been enhanced to support
4009 zero-copy and copy-on-demand for packet buffers which have their
4010 payloads in application-managed memory.
4011 Implemented by David Haas.
4012  
4013 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
4014 if an outgoing packet can be directly sent on the link, or perform
4015 a copy-on-demand when necessary.
4016  
4017 The application can safely assume the packet is sent, and the RAM
4018 is available to the application directly after calling udp_send()
4019 or similar function.
4020  
4021 ++ Bugfixes:
4022  
4023 * ARP_QUEUEING should now correctly work for all cases, including
4024 PBUF_REF.
4025 Implemented by Leon Woestenberg.
4026  
4027 ++ Changes:
4028  
4029 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
4030 to a '0.0.0.0' IP address.
4031  
4032 * The packet buffer implementation is changed. The pbuf->ref counter
4033 meaning has changed, and several pbuf functions have been
4034 adapted accordingly.
4035  
4036 * netif drivers have to be changed to set the hardware address length field
4037 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
4038 See the contrib/ports/c16x cs8900 driver as a driver example.
4039  
4040 * netif's have a dhcp field that must be initialized to NULL by the driver.
4041 See the contrib/ports/c16x cs8900 driver as a driver example.
4042  
4043 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
4044 logged in CVS but have not been explained here.
4045  
4046 (0.5.3) Changes since version 0.5.2
4047  
4048 ++ Bugfixes:
4049  
4050 * memp_malloc(MEMP_API_MSG) could fail with multiple application
4051 threads because it wasn't protected by semaphores.
4052  
4053 ++ Other changes:
4054  
4055 * struct ip_addr now packed.
4056  
4057 * The name of the time variable in arp.c has been changed to ctime
4058 to avoid conflicts with the time() function.
4059  
4060 (0.5.2) Changes since version 0.5.1
4061  
4062 ++ New features:
4063  
4064 * A new TCP function, tcp_tmr(), now handles both TCP timers.
4065  
4066 ++ Bugfixes:
4067  
4068 * A bug in tcp_parseopt() could cause the stack to hang because of a
4069 malformed TCP option.
4070  
4071 * The address of new connections in the accept() function in the BSD
4072 socket library was not handled correctly.
4073  
4074 * pbuf_dechain() did not update the ->tot_len field of the tail.
4075  
4076 * Aborted TCP connections were not handled correctly in all
4077 situations.
4078  
4079 ++ Other changes:
4080  
4081 * All protocol header structs are now packed.
4082  
4083 * The ->len field in the tcp_seg structure now counts the actual
4084 amount of data, and does not add one for SYN and FIN segments.
4085  
4086 (0.5.1) Changes since version 0.5.0
4087  
4088 ++ New features:
4089  
4090 * Possible to run as a user process under Linux.
4091  
4092 * Preliminary support for cross platform packed structs.
4093  
4094 * ARP timer now implemented.
4095  
4096 ++ Bugfixes:
4097  
4098 * TCP output queue length was badly initialized when opening
4099 connections.
4100  
4101 * TCP delayed ACKs were not sent correctly.
4102  
4103 * Explicit initialization of BSS segment variables.
4104  
4105 * read() in BSD socket library could drop data.
4106  
4107 * Problems with memory alignment.
4108  
4109 * Situations when all TCP buffers were used could lead to
4110 starvation.
4111  
4112 * TCP MSS option wasn't parsed correctly.
4113  
4114 * Problems with UDP checksum calculation.
4115  
4116 * IP multicast address tests had endianess problems.
4117  
4118 * ARP requests had wrong destination hardware address.
4119  
4120 ++ Other changes:
4121  
4122 * struct eth_addr changed from u16_t[3] array to u8_t[6].
4123  
4124 * A ->linkoutput() member was added to struct netif.
4125  
4126 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
4127  
4128 * ntoh* macros are now null definitions for big endian CPUs.
4129  
4130 (0.5.0) Changes since version 0.4.2
4131  
4132 ++ New features:
4133  
4134 * Redesigned operating system emulation layer to make porting easier.
4135  
4136 * Better control over TCP output buffers.
4137  
4138 * Documenation added.
4139  
4140 ++ Bugfixes:
4141  
4142 * Locking issues in buffer management.
4143  
4144 * Bugfixes in the sequential API.
4145  
4146 * IP forwarding could cause memory leakage. This has been fixed.
4147  
4148 ++ Other changes:
4149  
4150 * Directory structure somewhat changed; the core/ tree has been
4151 collapsed.
4152  
4153 (0.4.2) Changes since version 0.4.1
4154  
4155 ++ New features:
4156  
4157 * Experimental ARP implementation added.
4158  
4159 * Skeleton Ethernet driver added.
4160  
4161 * Experimental BSD socket API library added.
4162  
4163 ++ Bugfixes:
4164  
4165 * In very intense situations, memory leakage could occur. This has
4166 been fixed.
4167  
4168 ++ Other changes:
4169  
4170 * Variables named "data" and "code" have been renamed in order to
4171 avoid name conflicts in certain compilers.
4172  
4173 * Variable++ have in appliciable cases been translated to ++variable
4174 since some compilers generate better code in the latter case.
4175  
4176 (0.4.1) Changes since version 0.4
4177  
4178 ++ New features:
4179  
4180 * TCP: Connection attempts time out earlier than data
4181 transmissions. Nagle algorithm implemented. Push flag set on the
4182 last segment in a burst.
4183  
4184 * UDP: experimental support for UDP-Lite extensions.
4185  
4186 ++ Bugfixes:
4187  
4188 * TCP: out of order segments were in some cases handled incorrectly,
4189 and this has now been fixed. Delayed acknowledgements was broken
4190 in 0.4, has now been fixed. Binding to an address that is in use
4191 now results in an error. Reset connections sometimes hung an
4192 application; this has been fixed.
4193  
4194 * Checksum calculation sometimes failed for chained pbufs with odd
4195 lengths. This has been fixed.
4196  
4197 * API: a lot of bug fixes in the API. The UDP API has been improved
4198 and tested. Error reporting and handling has been
4199 improved. Logical flaws and race conditions for incoming TCP
4200 connections has been found and removed.
4201  
4202 * Memory manager: alignment issues. Reallocating memory sometimes
4203 failed, this has been fixed.
4204  
4205 * Generic library: bcopy was flawed and has been fixed.
4206  
4207 ++ Other changes:
4208  
4209 * API: all datatypes has been changed from generic ones such as
4210 ints, to specified ones such as u16_t. Functions that return
4211 errors now have the correct type (err_t).
4212  
4213 * General: A lot of code cleaned up and debugging code removed. Many
4214 portability issues have been fixed.
4215  
4216 * The license was changed; the advertising clause was removed.
4217  
4218 * C64 port added.
4219  
4220 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
4221 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
4222 fixing bugs!
4223  
4224 (0.4) Changes since version 0.3.1
4225  
4226 * Memory management has been radically changed; instead of
4227 allocating memory from a shared heap, memory for objects that are
4228 rapidly allocated and deallocated is now kept in pools. Allocation
4229 and deallocation from those memory pools is very fast. The shared
4230 heap is still present but is used less frequently.
4231  
4232 * The memory, memory pool, and packet buffer subsystems now support
4233 4-, 2-, or 1-byte alignment.
4234  
4235 * "Out of memory" situations are handled in a more robust way.
4236  
4237 * Stack usage has been reduced.
4238  
4239 * Easier configuration of lwIP parameters such as memory usage,
4240 TTLs, statistics gathering, etc. All configuration parameters are
4241 now kept in a single header file "lwipopts.h".
4242  
4243 * The directory structure has been changed slightly so that all
4244 architecture specific files are kept under the src/arch
4245 hierarchy.
4246  
4247 * Error propagation has been improved, both in the protocol modules
4248 and in the API.
4249  
4250 * The code for the RTXC architecture has been implemented, tested
4251 and put to use.
4252  
4253 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
4254 the Internet checksum modules.
4255  
4256 * Bugs related to porting between a 32-bit and a 16-bit architecture
4257 have been found and corrected.
4258  
4259 * The license has been changed slightly to conform more with the
4260 original BSD license, including the advertisement clause.
4261  
4262 (0.3.1) Changes since version 0.3
4263  
4264 * Fix of a fatal bug in the buffer management. Pbufs with allocated
4265 RAM never returned the RAM when the pbuf was deallocated.
4266  
4267 * TCP congestion control, window updates and retransmissions did not
4268 work correctly. This has now been fixed.
4269  
4270 * Bugfixes in the API.
4271  
4272 (0.3) Changes since version 0.2
4273  
4274 * New and improved directory structure. All include files are now
4275 kept in a dedicated include/ directory.
4276  
4277 * The API now has proper error handling. A new function,
4278 netconn_err(), now returns an error code for the connection in
4279 case of errors.
4280  
4281 * Improvements in the memory management subsystem. The system now
4282 keeps a pointer to the lowest free memory block. A new function,
4283 mem_malloc2() tries to allocate memory once, and if it fails tries
4284 to free some memory and retry the allocation.
4285  
4286 * Much testing has been done with limited memory
4287 configurations. lwIP now does a better job when overloaded.
4288  
4289 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
4290  
4291 * Many bugfixes in the TCP code:
4292  
4293 - Fixed a bug in tcp_close().
4294  
4295 - The TCP receive window was incorrectly closed when out of
4296 sequence segments was received. This has been fixed.
4297  
4298 - Connections are now timed-out of the FIN-WAIT-2 state.
4299  
4300 - The initial congestion window could in some cases be too
4301 large. This has been fixed.
4302  
4303 - The retransmission queue could in some cases be screwed up. This
4304 has been fixed.
4305  
4306 - TCP RST flag now handled correctly.
4307  
4308 - Out of sequence data was in some cases never delivered to the
4309 application. This has been fixed.
4310  
4311 - Retransmitted segments now contain the correct acknowledgment
4312 number and advertised window.
4313  
4314 - TCP retransmission timeout backoffs are not correctly computed
4315 (ala BSD). After a number of retransmissions, TCP now gives up
4316 the connection.
4317  
4318 * TCP connections now are kept on three lists, one for active
4319 connections, one for listening connections, and one for
4320 connections that are in TIME-WAIT. This greatly speeds up the fast
4321 timeout processing for sending delayed ACKs.
4322  
4323 * TCP now provides proper feedback to the application when a
4324 connection has been successfully set up.
4325  
4326 * More comments have been added to the code. The code has also been
4327 somewhat cleaned up.
4328  
4329 (0.2) Initial public release.