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