5 * [Enter new changes just after this line - do not remove this line]
9 2012-03-25: Simon Goldschmidt (idea by Mason)
10 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
11 which are a simple wrapper to the correct lwIP include files.
13 2012-01-16: Simon Goldschmidt
14 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
16 2011-12-17: Simon Goldschmidt
17 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
20 2011-09-27: Simon Goldschmidt
21 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
22 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
24 2011-09-21: Simon Goldschmidt
25 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
26 send (TCP only, bug #33820)
28 2011-09-21: Simon Goldschmidt
29 * init.c: Converted runtime-sanity-checks into compile-time checks that can
30 be disabled (since runtime checks can often not be seen on embedded targets)
32 2011-09-11: Simon Goldschmidt
33 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
34 to get a clear separation of which functions an application or port may use
37 2011-09-11: Simon Goldschmidt
38 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
39 initial local TCP/UDP ports (so that different port ranges are used after
40 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
42 2011-09-03: Simon Goldschmidt
43 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
45 2011-08-24: Simon Goldschmidt
46 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
48 2011-07-26: Simon Goldschmidt
49 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
50 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
52 2011-07-21: Simon Goldschmidt (patch by hanhui)
53 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
54 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
55 Also added code to allow ip_forward() to forward non-broadcast packets to
56 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
58 2011-07-21: Simon Goldschmidt
59 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
60 ioctl/FIONREAD return the size of the next pending datagram.
62 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
63 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
66 2011-05-25: Simon Goldschmidt
67 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
68 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
69 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
70 code so that the code is more readable.
72 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
73 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
74 Ivan! (this is work in progress: we're just post release anyway :-)
76 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
77 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
83 2013-04-24: Simon Goldschmidt
84 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
86 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
87 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
89 2013-01-15: Simon Goldschmidt
90 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
92 2013-01-15: Simon Goldschmidt
93 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
95 2013-01-14: Simon Goldschmidt
96 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
98 2013-01-11: Simon Goldschmidt
99 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
101 2012-09-26: Simon Goldschmidt
102 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
104 2012-09-26: patch by Henrik Persson
105 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
107 2012-09-26: patch by Henrik Persson
108 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
110 2012-08-22: Simon Goldschmidt
111 * memp.c: fixed bug #37166: memp_sanity check loops itself
113 2012-08-13: Simon Goldschmidt
114 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
117 2012-08-13: Simon Goldschmidt
118 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
119 configured but no interfaces available
121 2012-08-13: Simon Goldschmidt
122 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
124 2012-05-11: Simon Goldschmidt (patch by Marty)
125 * memp.c: fixed bug #36412: memp.c does not compile when
126 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
128 2012-05-08: Simon Goldschmidt
129 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
130 a debug-check issue only)
132 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
133 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
136 2012-05-03: Simon Goldschmidt (patch by David Empson)
137 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
140 2012-03-27: Simon Goldschmidt
141 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
143 2012-03-27: Simon Goldschmidt (patch by Mason)
144 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
147 2012-03-25: Simon Goldschmidt
148 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
149 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
151 2012-03-25: Simon Goldschmidt
152 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
153 pollution in api_msg.c and netifapi.c
155 2012-03-22: Simon Goldschmidt
156 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
158 2012-03-20: Simon Goldschmidt (patch by Mason)
159 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
161 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
162 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
163 possible bug on little endian system
165 2012-02-23: Simon Goldschmidt
166 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
167 (introduced when fixing bug# 33551)
169 2012-02-16: Simon Goldschmidt
170 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
171 (bug #35541: PPP Memory Leak)
173 2012-02-16: Simon Goldschmidt
174 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
175 (introduced when fixing bug# 33551)
177 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
178 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
180 2012-02-15: Simon Goldschmidt
181 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
184 2012-02-12: Simon Goldschmidt
185 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
186 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
188 2012-02-11: Simon Goldschmidt
189 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
192 2012-01-22: Simon Goldschmidt
193 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
195 2012-01-21: Simon Goldschmidt
196 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
198 2012-01-20: Simon Goldschmidt
199 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
201 2012-01-20: Simon Goldschmidt
202 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
204 2011-11-25: Simon Goldschmidt
205 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
206 tcp_active_pcbs in some cases
208 2011-11-23: Simon Goldschmidt
209 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
212 2011-11-22: Simon Goldschmidt
213 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
214 netif is brought down
216 2011-10-28: Simon Goldschmidt
217 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
219 2011-10-23: Simon Goldschmidt
220 * mem.c: fixed bug #34429: possible memory corruption with
221 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
223 2011-10-18: Simon Goldschmidt
224 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
227 2011-10-18: Simon Goldschmidt
228 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
229 windows (bug #34176 select after non-blocking send times out)
231 2011-10-18: Simon Goldschmidt
232 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
233 consider netif->mtu, causes slow network
235 2011-10-18: Simon Goldschmidt
236 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
238 2011-10-18: Simon Goldschmidt
239 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
241 2011-10-17: Simon Goldschmidt
242 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
244 2011-10-13: Simon Goldschmidt
245 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
246 zero window is received) by starting the persist timer when a zero window is
247 received, not when we have more data queued for sending than fits into the
250 2011-10-13: Simon Goldschmidt
251 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
253 2011-10-13: Simon Goldschmidt
254 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
255 used and not all protocols are enabled
257 2011-10-12: Simon Goldschmidt
258 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
260 2011-10-09: Simon Goldschmidt
261 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
262 byte value when pcb->unacked != NULL
264 2011-10-09: Simon Goldschmidt
265 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
267 2011-09-27: Simon Goldschmidt
268 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
270 2011-09-27: Simon Goldschmidt
271 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
273 2011-09-27: Simon Goldschmidt
274 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
276 2011-09-24: Simon Goldschmidt
277 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
279 2011-09-23: Simon Goldschmidt
280 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
281 the last packet including FIN can lose data
283 2011-09-22: Simon Goldschmidt
284 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
287 2011-09-21: Simon Goldschmidt
288 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
291 2011-09-20: Simon Goldschmidt
292 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
294 2011-09-11: Simon Goldschmidt
295 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
298 2011-09-09: Simon Goldschmidt
299 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
302 2011-09-03: Simon Goldschmidt
303 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
304 is aggregated and sent to application
306 2011-09-01: Simon Goldschmidt
307 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
310 2011-09-01: Simon Goldschmidt
311 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
313 2011-08-24: Simon Goldschmidt
314 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
316 2011-08-24: Simon Goldschmidt
317 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
318 accept() on UDP connections
320 2011-08-24: Simon Goldschmidt
321 * sockets.h: fixed bug #34057 socklen_t should be a typedef
323 2011-08-24: Simon Goldschmidt
324 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
326 2011-08-24: Simon Goldschmidt
327 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
329 2011-08-24: Simon Goldschmidt
330 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
332 2011-08-22: Simon Goldschmidt
333 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
334 merely prevents nagle from not transmitting fast after closing.)
336 2011-07-22: Simon Goldschmidt
337 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
338 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
339 lwip_send() sends as much as possible for non-blocking sockets
341 2011-07-22: Simon Goldschmidt
342 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
343 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
344 at regular intervals from main level.
346 2011-07-21: Simon Goldschmidt
347 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
348 sending an ARP request when an ARP entry is used in the last minute before
351 2011-07-04: Simon Goldschmidt
352 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
354 2011-06-26: Simon Goldschmidt
355 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
356 updating its documentation only.
358 2011-06-26: Simon Goldschmidt
359 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
362 2011-06-26: Simon Goldschmidt
363 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
371 2011-03-27: Simon Goldschmidt
372 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
373 calculate it in tcp_zero_window_probe (the only place where it was used).
375 2010-11-21: Simon Goldschmidt
376 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
379 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
380 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
381 IP_MULTICAST_LOOP at socket- and raw-API level.
383 2010-06-16: Simon Goldschmidt
384 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
385 link-layer-addressed UDP traffic to be received while a netif is down (just
386 like DHCP during configuration)
388 2010-05-22: Simon Goldschmidt
389 * many many files: bug #27352: removed packing from ip_addr_t, the packed
390 version is now only used in protocol headers. Added global storage for
391 current src/dest IP address while in input functions.
393 2010-05-16: Simon Goldschmidt
394 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
395 calculation (and use them throughout the stack where applicable)
397 2010-05-16: Simon Goldschmidt
398 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
399 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
401 2010-05-16: Simon Goldschmidt
402 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
403 MEMP pool instead of the heap
405 2010-05-13: Simon Goldschmidt
406 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
407 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
408 packets to more than one pcb.
410 2010-05-02: Simon Goldschmidt
411 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
412 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
414 2010-04-30: Simon Goldschmidt
415 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
416 take a precalculated checksum, added pbuf_fill_chksum() to copy data
417 into a pbuf and at the same time calculating the checksum for that data
419 2010-04-29: Simon Goldschmidt
420 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
421 2-byte-aligned IP addresses and MAC addresses
423 2010-04-28: Patch by Bill Auerbach
424 * ip.c: Inline generating IP checksum to save a function call
426 2010-04-14: Simon Goldschmidt
427 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
428 tcpip_thread processes messages or timeouts to implement a watchdog.
430 2010-03-28: Simon Goldschmidt
431 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
432 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
434 2010-03-27: Simon Goldschmidt
435 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
436 etharp_query to prevent unnecessary function calls (inspired by
439 2010-03-20: Simon Goldschmidt
440 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
441 since the linker cannot do this automatically to save space.
443 2010-03-20: Simon Goldschmidt
444 * opt.h, etharp.c/.h: Added support for static ARP table entries
446 2010-03-14: Simon Goldschmidt
447 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
448 when creating TCP segments, not when (re-)transmitting them.
450 2010-03-07: Simon Goldschmidt
451 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
452 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
453 This should speed up receiving data on sockets as the select code in
454 event_callback is only executed when select is waiting.
456 2010-03-06: Simon Goldschmidt
457 * tcp_out.c: task #7013 (Create option to have all packets delivered to
458 netif->output in one piece): Always copy to try to create single pbufs
461 2010-03-06: Simon Goldschmidt
462 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
463 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
464 for tcp netconns to receive pbufs, not netbufs; use that function
467 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
468 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
469 Work on tcp_enqueue: Don't waste memory when chaining segments,
470 added option TCP_OVERSIZE to prevent creating many small pbufs when
471 calling tcp_write with many small blocks of data. Instead, pbufs are
472 allocated larger than needed and the space is used for later calls to
475 2010-02-21: Simon Goldschmidt
476 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
479 2010-02-21: Simon Goldschmidt
480 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
481 implementation of tcp to make API usage cleare to application programmers
483 2010-02-14: Simon Goldschmidt/Stephane Lesage
484 * ip_addr.h: Improved some defines working on ip addresses, added faster
485 macro to copy addresses that cannot be NULL
487 2010-02-13: Simon Goldschmidt
488 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
489 blocking send operation)
491 2010-02-12: Simon Goldschmidt
492 * sockets.c/.h: Added a minimal version of posix fctl() to have a
493 standardised way to set O_NONBLOCK for nonblocking sockets.
495 2010-02-12: Simon Goldschmidt
496 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
497 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
498 and dhcp work with user-allocated structs instead of callin mem_malloc
500 2010-02-12: Simon Goldschmidt/Jeff Barber
501 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
502 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
504 2010-02-12: Simon Goldschmidt
505 * sys layer: task #10139 (Prefer statically allocated memory): converted
506 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
507 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
508 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
509 to let sys.h use binary semaphores instead of mutexes - as before)
511 2010-02-09: Simon Goldschmidt (Simon Kallweit)
512 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
513 (Restart system timeout handling)
515 2010-02-09: Simon Goldschmidt
516 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
517 netif.c) - loopif does not have to be created by the port any more,
518 just define LWIP_HAVE_LOOPIF to 1.
520 2010-02-08: Simon Goldschmidt
521 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
522 inet_ntoa_r/ipaddr_ntoa_r
524 2010-02-08: Simon Goldschmidt
525 * netif.h: Added netif_s/get_igmp_mac_filter() macros
527 2010-02-05: Simon Goldschmidt
528 * netif.h: Added function-like macros to get/set the hostname on a netif
530 2010-02-04: Simon Goldschmidt
531 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
532 make changing the actual implementation behind the typedef easier.
534 2010-02-01: Simon Goldschmidt
535 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
536 for allocating memory when getaddrinfo() is called.
538 2010-01-31: Simon Goldschmidt
539 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
540 them once instead of parsing for every option. This also removes
541 the need for mem_malloc from dhcp_recv and makes it possible to
542 correctly retrieve the BOOTP file.
544 2010-01-30: simon Goldschmidt
545 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
548 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
549 * api.h, api_msg.c, sockets.c: Added except set support in select
552 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
553 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
554 Add non-blocking support for connect (partly from patch #6860),
555 plus many cleanups in socket & netconn API.
557 2010-01-27: Simon Goldschmidt
558 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
559 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
561 2010-01-26: Simon Goldschmidt
562 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
564 2010-01-14: Simon Goldschmidt
565 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
566 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
568 2010-01-13: Simon Goldschmidt
569 * mem.c: The heap now may be moved to user-defined memory by defining
570 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
571 (patch #6966 and bug #26133)
573 2010-01-10: Simon Goldschmidt (Bill Auerbach)
574 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
577 2010-01-10: Simon Goldschmidt
578 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
579 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
581 2009-12-31: Simon Goldschmidt
582 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
583 added timers.c/.h: Separated timer implementation from semaphore/mbox
584 implementation, moved timer implementation to timers.c/.h, timers are
585 now only called from tcpip_thread or by explicitly checking them.
588 2009-12-27: Simon Goldschmidt
589 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
590 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
595 2011-04-20: Simon Goldschmidt
596 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
598 2011-04-13: Simon Goldschmidt
599 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
600 using ports in the IANA private/dynamic range (49152 through 65535).
602 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
603 * etharp.h/.c: Fixed broken VLAN support.
605 2011-03-27: Simon Goldschmidt
606 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
607 pcbs) by checking if the pcb was bound (local_port != 0).
609 2011-03-27: Simon Goldschmidt
610 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
612 2011-03-27: Simon Goldschmidt
613 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
614 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
616 2011-03-27: Simon Goldschmidt
617 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
618 is present never times out) by starting retransmission timer before checking
621 2011-03-22: Simon Goldschmidt
622 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
623 calling sio_read_abort() if the file descriptor is valid.
625 2011-03-14: Simon Goldschmidt
626 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
627 more than once can render a socket useless) since it mainly involves changing
628 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
630 2011-03-13: Simon Goldschmidt
631 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
632 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
633 use EALRADY instead of -1
635 2011-03-13: Simon Goldschmidt
636 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
637 connection has been aborted by err_tcp (since this is not a normal closing
640 2011-03-13: Simon Goldschmidt
641 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
642 with pcb->state != CLOSED
644 2011-02-17: Simon Goldschmidt
645 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
648 2011-02-17: Simon Goldschmidt
649 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
651 2011-01-24: Simon Goldschmidt
652 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
654 2010-12-02: Simon Goldschmidt
655 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
657 2010-11-23: Simon Goldschmidt
658 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
659 LWIP_SO_RCVBUF and ioctl/FIONREAD.
661 2010-11-23: Simon Goldschmidt
662 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
663 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
665 2010-11-23: Simon Goldschmidt
666 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
667 refusing 'refused_data' again.
669 2010-11-22: Simon Goldschmidt
670 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
671 after a successful nonblocking connection.
673 2010-11-22: Simon Goldschmidt
674 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
675 must be sent link-local
677 2010-11-22: Simon Goldschmidt
678 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
681 2010-11-20: Simon Goldschmidt
682 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
684 2010-11-20: Simon Goldschmidt
685 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
686 resemble other stacks.
688 2010-11-20: Simon Goldschmidt
689 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
690 no-copy TCP writes will never succeed.
692 2010-11-20: Simon Goldschmidt
693 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
694 not match documentation: return ERR_ARG instead of ERR_VAL if not
695 initialized or wrong argument.
697 2010-10-20: Simon Goldschmidt
698 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
700 2010-10-05: Simon Goldschmidt
701 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
702 replugging the network cable after an AutoIP address was assigned.
704 2010-08-10: Simon Goldschmidt
705 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
707 2010-08-03: Simon Goldschmidt
708 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
710 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
711 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
712 endian architectures)
714 2010-07-28: Simon Goldschmidt
715 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
718 2010-07-27: Simon Goldschmidt
719 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
720 harm but never did anything
722 2010-07-21: Simon Goldschmidt
723 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
726 2010-07-16: Kieran Mansley
727 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
729 2010-07-10: Simon Goldschmidt
730 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
732 2010-06-30: Simon Goldschmidt
733 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
736 2010-06-28: Kieran Mansley
737 * timers.c remove unportable printing of C function pointers
739 2010-06-24: Simon Goldschmidt
740 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
741 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
743 2010-06-24: Simon Goldschmidt
744 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
745 implemented shutdown at socket level.
747 2010-06-21: Simon Goldschmidt
748 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
749 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
750 custom pbufs that reference other (original) pbufs. Additionally set
751 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
753 2010-06-15: Simon Goldschmidt
754 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
756 2010-06-14: Simon Goldschmidt
757 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
759 2010-06-12: Simon Goldschmidt
760 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
763 2010-05-17: Simon Goldschmidt
764 * netdb.c: Correctly NULL-terminate h_addr_list
766 2010-05-16: Simon Goldschmidt
767 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
768 "symbol already defined" i.e. when linking to winsock
770 2010-05-05: Simon Goldschmidt
771 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
774 2010-04-21: Simon Goldschmidt
775 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
778 2010-03-28: Luca Ceresoli
779 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
781 2010-03-27: Luca Ceresoli
782 * mib2.c: patch #7130: remove meaningless const qualifiers
784 2010-03-26: Simon Goldschmidt
785 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
787 2010-03-26: Simon Goldschmidt
788 * various files: Fixed compiling with different options disabled (TCP/UDP),
789 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
791 2010-03-25: Simon Goldschmidt
792 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
794 2010-03-25: Simon Goldschmidt
795 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
796 overrunning our rcv_wnd in ooseq case.
798 2010-03-22: Simon Goldschmidt
799 * tcp.c: tcp_listen() did not copy the pcb's prio.
801 2010-03-19: Simon Goldschmidt
802 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
804 2010-03-14: Simon Goldschmidt
805 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
806 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
807 and basing PBUF_LINK_HLEN on it.
809 2010-03-08: Simon Goldschmidt
810 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
811 when assiging routable address): when checking incoming packets and
812 aborting existing connection on address change, filter out link-local
815 2010-03-06: Simon Goldschmidt
816 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
818 2010-03-06: Simon Goldschmidt
819 * ipv4/ip.c: Don't try to forward link-local addresses
821 2010-03-06: Simon Goldschmidt
822 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
825 2010-03-05: Simon Goldschmidt
826 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
829 2010-03-05: Simon Goldschmidt
830 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
831 into multiple calls to tcp_write.
833 2010-02-21: Simon Goldschmidt
834 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
835 the implementation of DNS_USES_STATIC_BUF==1)
837 2010-02-20: Simon Goldschmidt
838 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
839 close() vs. shutdown(). Now the application does not get any more
840 recv callbacks after calling tcp_close(). Added tcp_shutdown().
842 2010-02-19: Simon Goldschmidt
843 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
844 confusion with realloc()
846 2010-02-15: Simon Goldschmidt/Stephane Lesage
847 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
850 2010-02-14: Simon Goldschmidt
851 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
852 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
853 admin-status of a netif are up
855 2010-02-14: Simon Goldschmidt
856 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
857 reception and is not really necessary
859 2010-02-14: Simon Goldschmidt
860 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
861 request was directed as us (RFC 826, Packet Reception), otherwise
862 only update existing entries; internalized some functions
864 2010-02-14: Simon Goldschmidt
865 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
866 disabled on netif used for PPPoE) by adding a new netif flag
867 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
868 device but prevents usage of ARP (so that ethernet_input can be used
871 2010-02-12: Simon Goldschmidt
872 * netif.c: netif_set_link_up/down: only do something if the link state
875 2010-02-12: Simon Goldschmidt/Stephane Lesage
876 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
879 2010-02-12: Simon Goldschmidt
880 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
882 2010-02-09: Simon Goldschmidt
883 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
884 (recv() makes receive window update for data that wasn't received by
887 2010-02-09: Simon Goldschmidt/Stephane Lesage
888 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
889 or any netconn_recv() error)
891 2010-02-09: Simon Goldschmidt
892 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
894 2010-02-09: Simon Goldschmidt
895 * netif.c: For loopback packets, adjust the stats- and snmp-counters
896 for the loopback netif.
898 2010-02-08: Simon Goldschmidt
899 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
900 since they are not used anywhere else.
902 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
903 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
904 (patch from bug #28798)
906 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
907 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
908 another bug when LWIP_RAND() returns zero.
910 2010-02-04: Simon Goldschmidt
911 * nearly every file: Use macros defined in ip_addr.h (some of them new)
912 to work with IP addresses (preparation for bug #27352 - Change ip_addr
913 from struct to typedef (u32_t) - and better code).
915 2010-01-31: Simon Goldschmidt
916 * netif.c: Don't call the link-callback from netif_set_up/down() since
917 this invalidly retriggers DHCP.
919 2010-01-29: Simon Goldschmidt
920 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
921 portability file inet.h and its contents from the stack: moved htonX-
922 functions to def.h (and the new def.c - they are not ipv4 dependent),
923 let inet.h depend on ip_addr.h and not the other way round.
924 This fixes bug #28732.
926 2010-01-28: Kieran Mansley
927 * tcp.c: Ensure ssthresh >= 2*MSS
929 2010-01-27: Simon Goldschmidt
930 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
931 callback can lead to accessing unallocated memory. As a consequence,
932 ERR_ABRT means the application has called tcp_abort()!
934 2010-01-25: Simon Goldschmidt
935 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
936 not implemented in SNMP): write-only or not-accessible are still
937 returned by getnext (though not by get)
939 2010-01-24: Simon Goldschmidt
940 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
941 not use reserved C/C++ keywords
943 2010-01-23: Simon Goldschmidt
944 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
947 2010-01-21: Simon Goldschmidt
948 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
949 if tcp_enqueue fails) both in raw- and netconn-API
951 2010-01-19: Simon Goldschmidt
952 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
954 2010-01-18: Iordan Neshev/Simon Goldschmidt
955 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
956 bugfix backports from 2.4.x.
958 2010-01-18: Simon Goldschmidt
959 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
961 2010-01-17: Simon Goldschmidt
962 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
963 task #10102: "netconn: clean up conn->err threading issues" by adding
964 error return value to struct api_msg_msg
966 2010-01-17: Simon Goldschmidt
967 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
968 to return err_t (bugs #27709 and #28087)
970 2010-01-14: Simon Goldschmidt
971 * ...: Use typedef for function prototypes throughout the stack.
973 2010-01-13: Simon Goldschmidt
974 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
975 window = 0) by correctly draining recvmbox/acceptmbox
977 2010-01-11: Simon Goldschmidt
978 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
979 erroneous callbacks) by copying the code from recent pppd
981 2010-01-10: Simon Goldschmidt
982 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
984 2010-01-10: Simon Goldschmidt
985 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
987 2010-01-08: Simon Goldschmidt
988 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
990 2010-01-08: Simon Goldschmidt
991 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
992 passed to dns_local_addhost() might be volatile
994 2010-01-07: Simon Goldschmidt
995 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
997 2010-01-06: Simon Goldschmidt
998 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1000 2009-12-31: Simon Goldschmidt
1001 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1002 structure to easily compare our code against the pppd code (around v2.3.1)
1004 2009-12-27: Simon Goldschmidt
1005 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1013 2009-10-27 Simon Goldschmidt/Stephan Lesage
1014 * netifapi.c/.h: Added netifapi_netif_set_addr()
1016 2009-10-07 Simon Goldschmidt/Fabian Koch
1017 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1018 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1020 2009-08-26 Simon Goldschmidt/Simon Kallweit
1021 * slipif.c/.h: bug #26397: SLIP polling support
1023 2009-08-25 Simon Goldschmidt
1024 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1025 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1027 2009-08-25 Simon Goldschmidt
1028 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1030 2009-08-24 Jakob Stoklund Olesen
1031 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1032 to netif_set_link_up().
1034 2009-08-23 Simon Goldschmidt
1035 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1036 to a human-readable string.
1040 2009-12-24: Kieran Mansley
1041 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1044 2009-12-06: Simon Goldschmidt
1045 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1046 be statically allocated (like in ucip)
1048 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1049 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1051 2009-12-03: Simon Goldschmidt
1052 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1053 could have non-zero length
1055 2009-12-02: Simon Goldschmidt
1056 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1057 tcp_input_pcb until after calling the pcb's callbacks
1059 2009-11-29: Simon Goldschmidt
1060 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1061 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1063 2009-11-29: Simon Goldschmidt
1064 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1065 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1067 2009-11-26: Simon Goldschmidt
1068 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1071 2009-11-26: Simon Goldschmidt
1072 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1073 algorithm at PCB level
1075 2009-11-22: Simon Goldschmidt
1076 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1078 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1079 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1080 reusing time-wait pcb
1082 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1083 * sockets.c: Fixed bug #28062: Data received directly after accepting
1084 does not wake up select
1086 2009-11-11: Simon Goldschmidt
1087 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1089 2009-10-30: Simon Goldschmidt
1090 * opt.h: Increased default value for TCP_MSS to 536, updated default
1091 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1093 2009-10-28: Kieran Mansley
1094 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1095 to follow algorithm from TCP/IP Illustrated
1097 2009-10-27: Kieran Mansley
1098 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1100 2009-10-25: Simon Goldschmidt
1101 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1102 pcb->recv is NULL to keep rcv_wnd correct)
1104 2009-10-25: Simon Goldschmidt
1105 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1107 2009-10-23: Simon Goldschmidt (David Empson)
1108 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1110 2009-10-21: Simon Goldschmidt
1111 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1112 trailing 1 byte len (SYN/FIN)
1114 2009-10-21: Simon Goldschmidt
1115 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1117 2009-10-19: Simon Goldschmidt
1118 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1119 conditional code to assert where applicable), check pbuf length before
1120 testing for valid reply
1122 2009-10-19: Simon Goldschmidt
1123 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1124 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1126 2009-10-16: Simon Goldschmidt
1127 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1128 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1131 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1132 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1134 2009-10-15: Simon Goldschmidt
1135 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1138 2009-10-15: Simon Goldschmidt
1139 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1140 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1141 of network byte order
1143 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1144 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1145 which are not consecutive when retransmitting unacked segments
1147 2009-10-09 Simon Goldschmidt
1148 * opt.h: Fixed default values of some stats to only be enabled if used
1149 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1151 2009-08-30 Simon Goldschmidt
1152 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1153 function" by checking for loopback before calling ip_frag
1155 2009-08-25 Simon Goldschmidt
1156 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1158 2009-08-23 Simon Goldschmidt
1159 * ppp.c: bug #27078: Possible memory leak in pppInit()
1161 2009-08-23 Simon Goldschmidt
1162 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1165 2009-08-23 Simon Goldschmidt
1166 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1167 Fixed wrong parenthesis, added check in init.c
1169 2009-08-23 Simon Goldschmidt
1170 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1172 2009-08-23 Simon Goldschmidt
1173 * many ppp files: bug #27267: Added include to string.h where needed
1175 2009-08-23 Simon Goldschmidt
1176 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1183 2009-05-10 Simon Goldschmidt
1184 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1185 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1186 one pbuf to help MACs that don't support scatter-gather DMA.
1188 2009-05-09 Simon Goldschmidt
1189 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1190 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1192 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1193 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1194 extended info about the currently received packet.
1196 2009-04-27 Simon Goldschmidt
1197 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1199 2009-04-25 Simon Goldschmidt
1200 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1201 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1203 2009-04-21 Simon Goldschmidt
1204 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1205 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1206 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1207 as an external function for lookup.
1209 2009-04-15 Simon Goldschmidt
1210 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1212 2009-03-31 Kieran Mansley
1213 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1214 TCP timestamp options, off by default. Rework tcp_enqueue() to
1215 take option flags rather than specified option data
1217 2009-02-18 Simon Goldschmidt
1218 * cc.h: Added printf formatter for size_t: SZT_F
1220 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1221 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1224 2009-02-12 Simon Goldschmidt
1225 * init.h: Added LWIP_VERSION to get the current version of the stack
1227 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1228 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1229 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1232 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1233 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1234 is only used by UDPLITE at present, so conditionalise it.
1236 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1237 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1238 "seed" address. This should reduce AUTOIP conflicts if
1239 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1241 2008-10-02 Jonathan Larmour and Rishi Khan
1242 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1245 2008-06-30 Simon Goldschmidt
1246 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1247 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1248 mem_free to run between mem_malloc iterations. Added illegal counter for
1251 2008-06-27 Simon Goldschmidt
1252 * stats.h/.c, some other files: patch #6483: stats module improvement:
1253 Added defines to display each module's statistic individually, added stats
1254 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1256 2008-06-17 Simon Goldschmidt
1257 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1258 (define LWIP_ERR_T in cc.h)
1260 2008-06-17 Simon Goldschmidt
1261 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1264 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1265 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1266 modified version of patch # 6370: Moved loopif code to netif.c so that
1267 loopback traffic is supported on all netifs (all local IPs).
1268 Added option to limit loopback packets for each netifs.
1272 2009-08-12 Kieran Mansley
1273 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1274 out of window or out of order properly
1276 2009-08-12 Kieran Mansley
1277 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1279 2009-07-28 Simon Goldschmidt
1280 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1282 2009-07-27 Kieran Mansley
1283 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1285 2009-07-09 Kieran Mansley
1286 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1287 recv_avail and don't increment counters until message successfully
1290 2009-06-25 Kieran Mansley
1291 * api_msg.c api.h: BUG26722: initialise netconn write variables
1294 2009-06-25 Kieran Mansley
1295 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1297 2009-06-25 Kieran Mansley
1298 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1299 simultaneous close behaviour, and make snd_nxt have the same meaning
1302 2009-05-12 Simon Goldschmidt
1303 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1304 arp_table / uses etharp_query" by adding etharp_gratuitous()
1306 2009-05-12 Simon Goldschmidt
1307 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1308 to the IP header (used by igmp_ip_output_if)
1310 2009-05-06 Simon Goldschmidt
1311 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1312 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1314 2009-05-05 Simon Goldschmidt
1315 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1318 2009-05-04 Simon Goldschmidt
1319 * init.c: snmp was not initialized in lwip_init()
1321 2009-05-04 Frédéric Bernon
1322 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1324 2009-05-03 Simon Goldschmidt
1325 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1326 (and unsent->next == NULL)
1328 2009-05-02 Simon Goldschmidt
1329 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1330 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1332 2009-05-02 Simon Goldschmidt
1333 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1335 2009-05-01 Simon Goldschmidt
1336 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1338 2009-05-01 Simon Goldschmidt
1339 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1341 2009-04-29 Frédéric Bernon
1342 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1343 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1344 of broadcast packets even when this option wasn't set. Port maintainers
1345 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1346 If you want this option also filter broadcast on recv operations, you also
1347 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1349 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1350 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1351 DHCP/AUTOIP cooperation
1353 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1354 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1355 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1356 right place in tcp_output and tcp_rexmit).
1358 2009-04-25 Simon Goldschmidt
1359 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1360 when debugging": memp_sizes contained the wrong sizes (including sanity
1361 regions); memp pools for MEM_USE_POOLS were too small
1363 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1364 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1365 behavior, with with ip address string not ended by a '\0', a space or a
1368 2009-04-19 Simon Goldschmidt
1369 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1370 pcb->err is called, not pcb->connected (with an error code).
1372 2009-04-19 Simon Goldschmidt
1373 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1374 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1376 2009-04-19 Simon Goldschmidt
1377 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1378 in the header pbuf, not the data pbuf)
1380 2009-04-18 Simon Goldschmidt
1381 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1383 2009-04-15 Simon Goldschmidt
1384 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1386 2009-04-15 Simon Goldschmidt
1387 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1389 2009-04-15 Simon Goldschmidt
1390 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1391 ip_hinted_output() (for smaller code mainly)
1393 2009-04-15 Simon Goldschmidt
1394 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1396 2009-04-15 Simon Goldschmidt
1397 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1398 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1399 is big enough in dhcp_start
1401 2009-04-15 Simon Goldschmidt
1402 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1404 2009-04-15 Simon Goldschmidt
1405 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1407 2009-04-15 Simon Goldschmidt
1408 * sockets.c: bug #26121: set_errno can be overridden
1410 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1411 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1414 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1415 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1418 2009-03-31 Kieran Mansley
1419 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1420 updates are calculated and sent (BUG20515)
1422 * tcp_in.c: cope with SYN packets received during established states,
1423 and retransmission of initial SYN.
1425 * tcp_out.c: set push bit correctly when tcp segments are merged
1427 2009-03-27 Kieran Mansley
1428 * tcp_out.c set window correctly on probes (correcting change made
1431 2009-03-26 Kieran Mansley
1432 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1433 connections where no reset required (bug #25622)
1435 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1438 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1439 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1440 too small depending on MEM_ALIGNMENT
1442 2009-02-16 Simon Goldschmidt
1443 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1444 converted size argument of netconn_write to 'size_t'
1446 2009-02-16 Simon Goldschmidt
1447 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1448 by moving accept callback function pointer to TCP_PCB_COMMON
1450 2009-02-12 Simon Goldschmidt
1451 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1454 2009-02-11 Simon Goldschmidt
1455 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1457 2009-02-11 Simon Goldschmidt
1458 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1459 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1461 2009-02-10 Simon Goldschmidt
1462 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1463 Accepts_pending is decrease on a corresponding listen pcb when a connection
1464 in state SYN_RCVD is close.
1466 2009-01-28 Jonathan Larmour
1467 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1470 2008-12-19 Simon Goldschmidt
1471 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1473 2008-12-10 Tamas Somogyi, Frédéric Bernon
1474 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1475 port uses deleted netbuf.
1477 2008-10-18 Simon Goldschmidt
1478 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1481 2008-10-15 Simon Goldschmidt
1482 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1483 by packing the struct ip_reass_helper.
1485 2008-10-03 David Woodhouse, Jonathan Larmour
1486 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1488 2008-10-02 Jonathan Larmour
1489 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1490 padding is included.
1492 2008-09-30 Jonathan Larmour
1493 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1494 assertion check that addrlen isn't NULL.
1496 2008-09-30 Jonathan Larmour
1497 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1499 2008-08-26 Simon Goldschmidt
1500 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1501 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1503 2008-08-14 Simon Goldschmidt
1504 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1505 tcp_close returns != ERR_OK)
1507 2008-07-08 Frédéric Bernon
1508 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1509 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1511 2008-06-24 Jonathan Larmour
1512 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1513 if tcp_seg_copy fails.
1515 2008-06-17 Simon Goldschmidt
1516 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1517 and created defines for swapping bytes and folding u32 to u16.
1519 2008-05-30 Kieran Mansley
1520 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1521 rather than rcv_ann_wnd when deciding if packets are in-window.
1522 Contributed by <arasmussen@consultant.datasys.swri.edu>
1524 2008-05-30 Kieran Mansley
1525 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1526 passing as function pointers when MEM_LIBC_MALLOC is defined.
1528 2008-05-09 Jonathan Larmour
1529 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1530 stop it being treated as a fatal error.
1532 2008-04-15 Simon Goldschmidt
1533 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1536 2008-03-27 Simon Goldschmidt
1537 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1538 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1539 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1540 or heap memory from interrupt context
1542 2008-03-26 Simon Goldschmidt
1543 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1544 host sent a zero mss as TCP option.
1551 2008-03-10 Jonathan Larmour
1552 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1553 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1555 2008-01-22 Frédéric Bernon
1556 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1557 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1559 2008-01-14 Frédéric Bernon
1560 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1561 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1562 tcp_recv callback (see rawapi.txt).
1564 2008-01-14 Frédéric Bernon, Marc Chaland
1565 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1567 2008-01-12 Frédéric Bernon
1568 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1569 netconn::sem per netconn::op_completed like suggested for the task #7490
1570 "Add return value to sys_mbox_post".
1572 2008-01-12 Frédéric Bernon
1573 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1574 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1575 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1577 2008-01-10 Frédéric Bernon
1578 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1579 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1580 "blocking" ("block" parameter = 1).
1582 2008-01-10 Frédéric Bernon
1583 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1584 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1585 "Add return value to sys_mbox_post".
1587 2008-01-05 Frédéric Bernon
1588 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1589 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1590 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1591 indicate the number of pointers query by the mailbox. There is three defines
1592 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1593 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1594 parameter in your implementation, but to ignore it to keep the previous behavior.
1595 The new sys_mbox_trypost function return a value to know if the mailbox is
1596 full or if the message is posted. Take a look to sys_arch.txt for more details.
1597 This new function is used in tcpip_input (so, can be called in an interrupt
1598 context since the function is not blocking), and in recv_udp and recv_raw.
1600 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1601 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1602 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1603 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1604 documentation in the rawapi.txt file.
1606 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1607 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1609 2007-12-31 Frédéric Bernon, Luca Ceresoli
1610 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1611 in autoip". The change in etharp_raw could be removed, since all calls to
1612 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1613 wrong in the future.
1615 2007-12-30 Frédéric Bernon, Tom Evans
1616 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1617 Filtering" reported by Tom Evans.
1619 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1620 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1621 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1622 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1623 keep accepting new connections.
1625 2007-12-13 Frédéric Bernon
1626 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1627 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1629 2007-12-12 Frédéric Bernon
1630 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1631 are the one which have ram usage.
1633 2007-12-05 Frédéric Bernon
1634 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1635 set of variables (=0) or a local one (=1). In this last case, your port should
1636 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1637 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1639 2007-12-03 Simon Goldschmidt
1640 * ip.c: ip_input: check if a packet is for inp first before checking all other
1641 netifs on netif_list (speeds up packet receiving in most cases)
1643 2007-11-30 Simon Goldschmidt
1644 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1645 UDP: move a (connected) pcb selected for input to the front of the list of
1646 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1649 2007-11-28 Simon Goldschmidt
1650 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1652 2007-11-25 Simon Goldschmidt
1653 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1656 2007-11-24 Simon Goldschmidt
1657 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1658 to the new file netdb.c; included lwip_getaddrinfo.
1660 2007-11-21 Simon Goldschmidt
1661 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1662 based on the MTU of the netif used to send. Enabled by default. Disable by
1663 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1665 2007-11-19 Frédéric Bernon
1666 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1667 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1668 copy dns payload to parse the response), return an error if there is no place
1669 for a new query, and fix some minor problems.
1671 2007-11-16 Simon Goldschmidt
1672 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1673 removed files: core/inet.c, core/inet6.c
1674 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1675 inet and chksum part; changed includes in all lwIP files as appropriate
1677 2007-11-16 Simon Goldschmidt
1678 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1679 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1680 (gethostbyname/gethostbyname_r).
1682 2007-11-15 Jim Pettinato, Frédéric Bernon
1683 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1684 requests with RAW api interface. Initialization is done in lwip_init() with
1685 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1686 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1687 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1688 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1689 list with points to improve.
1691 2007-11-06 Simon Goldschmidt
1692 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1693 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1694 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1696 2007-11-06 Simon Goldschmidt
1697 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1698 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1699 implementation from netconn api applications.
1701 2007-11-03 Frédéric Bernon
1702 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1703 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1704 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1705 it. This is a first release which have to be improve for TCP. Note it used the
1706 netconn::recv_avail which need to be more "thread-safe" (note there is already
1707 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1709 2007-11-01 Frédéric Bernon, Marc Chaland
1710 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1711 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1712 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1713 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1714 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1716 2007-10-24 Frédéric Bernon
1717 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1718 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1719 some code (like we have talk in "patch #5919 : Create compile switch to remove
1720 select code"), but it could be done later.
1722 2007-10-08 Simon Goldschmidt
1723 * many files: Changed initialization: many init functions are not needed any
1724 more since we now rely on the compiler initializing global and static
1727 2007-10-06 Simon Goldschmidt
1728 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1729 to enqueue the received pbufs so that multiple packets can be reassembled
1730 simultaneously and no static reassembly buffer is needed.
1732 2007-10-05 Simon Goldschmidt
1733 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1734 all netifs (or ports) can use it.
1736 2007-10-05 Frédéric Bernon
1737 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1738 common function to reduce a little bit the footprint (for all functions using
1739 only the "netif" parameter).
1741 2007-10-03 Frédéric Bernon
1742 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1743 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1744 a little bit the footprint (for all functions using only the "netif" parameter).
1746 2007-09-15 Frédéric Bernon
1747 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1748 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1749 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1750 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1752 2007-09-10 Frédéric Bernon
1753 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1754 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1755 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1756 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1757 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1758 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1759 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1760 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1761 when it's queried (any direct call to "sysuptime" is changed by a call to
1762 snmp_get_sysuptime).
1764 2007-09-09 Frédéric Bernon, Bill Florac
1765 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1766 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1767 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1768 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1769 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1770 the next query message to receive the matching multicast streams).
1772 2007-09-08 Frédéric Bernon
1773 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1774 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1775 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1776 Enable to access to these fields with LWIP_TCP=0.
1778 2007-09-05 Frédéric Bernon
1779 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1780 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1781 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1782 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1783 help to reduce footprint, and to reduce "visibility" on the Internet.
1785 2007-09-05 Frédéric Bernon, Bill Florac
1786 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1787 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1788 parameters have to be provided: a task name, and a task stack size. For this
1789 one, since it's platform dependant, you could define the best one for you in
1790 your lwipopts.h. For port maintainers, you can just add these new parameters
1791 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1794 2007-09-05 Frédéric Bernon
1795 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1796 inside init.c for task #7142 "Sanity check user-configurable values".
1798 2007-09-04 Frédéric Bernon, Bill Florac
1799 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1800 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1801 value). It will avoid potential fragmentation problems, use a counter to know
1802 how many times a group is used on an netif, and free it when all applications
1803 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1804 check if LWIP_IGMP!=0).
1806 2007-09-03 Frédéric Bernon
1807 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1808 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1809 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1810 and/or the "interface" field (for netconn layer), for join/leave operations.
1811 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1812 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1814 2007-08-30 Frédéric Bernon
1815 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1816 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1817 with other API (application based on raw API, or future "socket2" API). Ports
1818 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1820 2007-08-30 Frédéric Bernon, Jonathan Larmour
1821 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1822 user-configurable values".
1824 2007-08-29 Frédéric Bernon
1825 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1826 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1827 spirit than the others modules. Modify some IGMP debug traces.
1829 2007-08-29 Frédéric Bernon
1830 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1831 Add lwip_init function to regroup all modules initializations, and to provide
1832 a place to add code for task #7142 "Sanity check user-configurable values".
1833 Ports maintainers should remove direct initializations calls from their code,
1834 and add init.c in their makefiles. Note that lwip_init() function is called
1835 inside tcpip_init, but can also be used by raw api users since all calls are
1836 disabled when matching options are disabled. Also note that their is new options
1837 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1839 2007-08-26 Marc Boucher
1840 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1841 since they can under certain circumstances be called with an invalid conn
1842 pointer after the connection has been closed (and conn has been freed).
1844 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1845 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1846 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1848 2007-08-22 Frédéric Bernon
1849 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1850 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1852 2007-08-22 Frédéric Bernon
1853 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1854 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1855 name is tcpip_input (we keep the name of 1.2.0 function).
1857 2007-08-17 Jared Grubb
1858 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1859 settings into new memp_std.h and optional user file lwippools.h. This adds
1860 more dynamic mempools, and allows the user to create an arbitrary number of
1861 mempools for mem_malloc.
1863 2007-08-16 Marc Boucher
1864 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1865 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1866 close the connection.
1868 2007-08-16 Marc Boucher
1869 * sockets.c: lwip_accept(): check netconn_peer() error return.
1871 2007-08-16 Marc Boucher
1872 * mem.c, mem.h: Added mem_calloc().
1874 2007-08-16 Marc Boucher
1875 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1876 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1877 and starving other message types.
1878 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1880 2007-08-16 Marc Boucher
1881 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1882 type and flgs (later renamed to flags).
1883 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1884 Improved lwip_recvfrom(). TCP push now propagated.
1886 2007-08-16 Marc Boucher
1887 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1890 2007-08-16 Marc Boucher
1891 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1892 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1893 Added PPPoE support and various PPP improvements.
1895 2007-07-25 Simon Goldschmidt
1896 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1897 making netbuf_copy_partial use this function.
1899 2007-07-25 Simon Goldschmidt
1900 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1901 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1904 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1905 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1906 a link callback in the netif struct, and functions to handle it. Be carefull
1907 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1908 if you want to be sure to be compatible with future changes...
1910 2007-06-30 Frédéric Bernon
1911 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1913 2007-06-21 Simon Goldschmidt
1914 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1915 LWIP_AUTOIP =0 and =1 to remove redundant code.
1917 2007-06-21 Simon Goldschmidt
1918 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1919 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1920 heap. This both prevents memory fragmentation and gives a higher speed
1921 at the cost of more memory consumption. Turned off by default.
1923 2007-06-21 Simon Goldschmidt
1924 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1925 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1926 int to be able to send a bigger buffer than 64K with one time (mainly
1927 used from lwip_send).
1929 2007-06-21 Simon Goldschmidt
1930 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1931 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1933 2007-06-21 Simon Goldschmidt
1934 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1935 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1936 changes on low memory or empty send-buffer.
1938 2007-06-18 Simon Goldschmidt
1939 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1940 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1941 used for ethernet and struct eth_addr already had a defined length of 6).
1943 2007-06-17 Simon Goldschmidt
1944 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1945 to disable UDP checksum generation on transmit.
1947 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1948 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1949 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1950 this macro to check "conn" parameter in api_msg.c functions.
1952 2007-06-11 Simon Goldschmidt
1953 * sockets.c, sockets.h: Added UDP lite support for sockets
1955 2007-06-10 Simon Goldschmidt
1956 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1957 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1960 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1961 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1962 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1963 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1964 (see TODO mark in the source code).
1966 2007-06-09 Simon Goldschmidt
1967 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1968 etharp_output() to match netif->output so etharp_output() can be used
1969 directly as netif->output to save one function call.
1971 2007-06-08 Simon Goldschmidt
1972 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1973 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1974 added initialization of those to ethernetif, slipif and loopif.
1976 2007-05-18 Simon Goldschmidt
1977 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1978 (defaulting to off for now) that can be set to 0 to send fragmented
1979 packets by passing PBUF_REFs down the stack.
1981 2007-05-23 Frédéric Bernon
1982 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1983 connections, such present in patch #5959.
1985 2007-05-23 Frédéric Bernon
1986 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1987 code in only one part...
1989 2007-05-18 Simon Goldschmidt
1990 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1991 elements to overflow. This is achieved by adding some bytes before and after
1992 each pool element (increasing their size, of course), filling them with a
1993 prominent value and checking them on freeing the element.
1994 Set it to 2 to also check every element in every pool each time memp_malloc()
1995 or memp_free() is called (slower but more helpful).
1997 2007-05-10 Simon Goldschmidt
1998 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1999 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2002 2007-05-11 Frédéric Bernon
2003 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2004 Include a function pointer instead of a table index in the message to reduce
2005 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2006 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2008 2007-05-10 Simon Goldschmidt
2009 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2010 \ extern "C" {' in all header files. Now you can write your application using
2011 the lwIP stack in C++ and simply #include the core files. Note I have left
2012 out the netif/ppp/*h header files for now, since I don't know which files are
2013 included by applications and which are for internal use only.
2015 2007-05-09 Simon Goldschmidt
2016 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2017 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2018 situations where some compilers might inline the copy and save a function
2019 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2021 2007-05-08 Simon Goldschmidt
2022 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2023 to be overriden in case the C-library malloc implementation is not protected
2024 against concurrent access.
2026 2007-05-04 Simon Goldschmidt (Atte Kojo)
2027 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2028 multiple packets to the same host.
2030 2007-05-04 Frédéric Bernon, Jonathan Larmour
2031 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2032 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2033 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2034 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2035 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2036 these fields are now renamed "addr" & "port".
2038 2007-04-11 Jonathan Larmour
2039 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2040 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2041 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2042 by the port in sys_arch.h if desired.
2044 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2045 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2046 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2047 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2049 2007-04-05 Frédéric Bernon
2050 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2052 2007-04-04 Simon Goldschmidt
2053 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2054 use this for and architecture-independent form to tell the compiler you intentionally
2055 are not using this variable. Can be overriden in cc.h.
2057 2007-03-28 Frédéric Bernon
2058 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2059 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2060 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2061 It will be used by DHCP to register a client hostname, but can also be use when you call
2064 2007-03-28 Frédéric Bernon
2065 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2066 initialize a network interface's flag with. It tell this interface is an ethernet
2067 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2068 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2070 2007-03-26 Frédéric Bernon, Jonathan Larmour
2071 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2072 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2073 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2074 is done in tcpip_init function.
2076 2007-03-22 Frédéric Bernon
2077 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2078 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2079 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2080 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2081 but never used. Fix msg_in.c with the correct #if test for a stat display.
2083 2007-03-21 Kieran Mansley
2084 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2085 Provides callback on netif up/down state change.
2087 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2088 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2089 ip.c, netif.h, tcpip.c, opt.h:
2090 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2091 filter per all network interfaces. Declare a new function in netif to enable to
2092 control the MAC filter (to reduce lwIP traffic processing).
2094 2007-03-11 Frédéric Bernon
2095 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2096 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2097 unless you know what you're doing (default are RFC1122 compliant). Note
2098 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2100 2007-03-08 Frédéric Bernon
2101 * tcp.h: Keepalive values can be configured at compile time, but don't change
2102 this unless you know what you're doing (default are RFC1122 compliant).
2104 2007-03-08 Frédéric Bernon
2105 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2106 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2107 on UDP sockets/netconn.
2109 2007-03-08 Simon Goldschmidt
2110 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2112 2007-03-06 Frédéric Bernon
2113 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2114 Implement SO_RCVTIMEO on UDP sockets/netconn.
2116 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2117 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2118 on the stack and remove the API msg type from memp
2120 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2121 * sockets.h, sockets.c: Move socket initialization to new
2122 lwip_socket_init() function.
2123 NOTE: this changes the API with ports. Ports will have to be
2124 updated to call lwip_socket_init() now.
2126 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2127 * api_lib.c: Use memcpy in netbuf_copy_partial.
2132 2008-03-17 Frédéric Bernon, Ed Kerekes
2133 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2134 some problems to fill the IP header on some targets, use now the
2135 ip.h macros to do it).
2137 2008-03-13 Frédéric Bernon
2138 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2139 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2140 TCP connection caused a crash. Note that using (lwip_)recvfrom
2141 like this is a bit slow and that using (lwip)getpeername is the
2142 good lwip way to do it (so, using recv is faster on tcp sockets).
2144 2008-03-12 Frédéric Bernon, Jonathan Larmour
2145 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2146 recv_raw() does not consume data", and the ping sample (with
2147 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2148 returned the IP payload, without the IP header).
2150 2008-03-04 Jonathan Larmour
2151 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2152 and/or warnings on some systems where mem_size_t and size_t differ.
2153 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2155 2008-03-04 Kieran Mansley (contributions by others)
2156 * Numerous small compiler error/warning fixes from contributions to
2157 mailing list after 1.3.0 release candidate made.
2159 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2160 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2162 2008-01-15 Kieran Mansley
2163 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2164 prevented from sending by a small send window, not just a zero
2167 2008-01-09 Jonathan Larmour
2168 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2169 conflict with Linux system headers.
2171 2008-01-06 Jonathan Larmour
2172 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2173 address entirely on receiving a DHCPNAK, and restarting discovery.
2175 2007-12-21 Simon Goldschmidt
2176 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2177 is not protected" by using new macros for interlocked access to modify/test
2178 netconn->recv_avail.
2180 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2181 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2183 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2184 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2185 of silly window avoidance and prevent lwIP from shrinking the window)
2187 2007-12-04 Simon Goldschmidt
2188 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2189 data packet was lost): add assert that all segment lists are empty in
2190 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2191 state from LAST_ACK in tcp_process
2193 2007-12-02 Simon Goldschmidt
2194 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2195 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2196 has to be set to 0 in lwipopts.h
2198 2007-12-02 Simon Goldschmidt
2199 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2200 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2201 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2202 This is a fix for thread-safety and allocates all items needed for a netconn
2203 when the netconn is created.
2205 2007-11-30 Simon Goldschmidt
2206 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2207 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2208 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2209 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2211 2007-11-27 Simon Goldschmidt
2212 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2213 letting ip_route only use netifs that are up.
2215 2007-11-27 Simon Goldschmidt
2216 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2217 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2218 sockets block most operations once they have seen a fatal error.
2220 2007-11-27 Simon Goldschmidt
2221 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2222 netif to send as an argument (to be able to send on netifs that are down).
2224 2007-11-26 Simon Goldschmidt
2225 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2228 2007-11-21 Simon Goldschmidt
2229 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2230 Fixed the nagle algorithm; nagle now also works for all raw API applications
2231 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2233 2007-11-12 Frédéric Bernon
2234 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2235 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2236 context in do_getaddr.
2238 2007-11-10 Simon Goldschmidt
2239 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2240 happen any time). Now the packet simply isn't enqueued when out of memory.
2242 2007-11-01 Simon Goldschmidt
2243 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2244 TCP_MSS if that is smaller) as long as no MSS option is received from the
2247 2007-11-01 Simon Goldschmidt
2248 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2249 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2250 sending our configured TCP_MSS instead of the one received).
2252 2007-11-01 Simon Goldschmidt
2253 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2254 calculated based on the configured TCP_MSS, not on the MSS option received
2257 2007-10-09 Simon Goldschmidt
2258 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2259 short and also was generated wrong if checksum coverage != tot_len;
2260 receive: checksum was calculated wrong if checksum coverage != tot_len
2262 2007-10-08 Simon Goldschmidt
2263 * mem.c: lfree was not updated in mem_realloc!
2265 2007-10-07 Frédéric Bernon
2266 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2267 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2268 this change cause an API breakage for netconn_addr, since a parameter
2269 type change. Any compiler should cause an error without any changes in
2270 yours netconn_peer calls (so, it can't be a "silent change"). It also
2271 reduce a little bit the footprint for socket layer (lwip_getpeername &
2272 lwip_getsockname use now a common lwip_getaddrname function since
2273 netconn_peer & netconn_addr have the same parameters).
2275 2007-09-20 Simon Goldschmidt
2276 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2277 by checking tcp_tw_pcbs also
2279 2007-09-19 Simon Goldschmidt
2280 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2282 2007-09-15 Mike Kleshov
2283 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2285 2007-09-06 Frédéric Bernon
2286 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2287 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2288 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2289 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2291 2007-08-30 Frédéric Bernon
2292 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2293 and fix some coding style.
2295 2007-08-28 Frédéric Bernon
2296 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2297 kind of packets. These packets are considered like Ethernet packets (payload
2298 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2299 are considered like IP packets (payload pointing to iphdr).
2301 2007-08-27 Frédéric Bernon
2302 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2303 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2304 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2306 2007-08-24 Kieran Mansley
2307 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2308 compiler (Paradigm C++)
2310 2007-08-09 Frédéric Bernon, Bill Florac
2311 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2312 Introduce IGMP_STATS to centralize statistics management.
2314 2007-08-09 Frédéric Bernon, Bill Florac
2315 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2316 packet on a udp pcb binded on an netif's IP address, and not on "any".
2318 2007-08-09 Frédéric Bernon, Bill Florac
2319 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2320 This is mainly on using lookup/lookfor, and some coding styles...
2322 2007-07-26 Frédéric Bernon (and "thedoctor")
2323 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2325 2007-07-25 Simon Goldschmidt
2326 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2327 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2328 (tcp_output is called again later from tcp timers).
2330 2007-07-25 Simon Goldschmidt
2331 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2332 copy_from_pbuf, which illegally modified the given pbuf.
2334 2007-07-25 Simon Goldschmidt
2335 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2336 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2338 2007-07-24 Simon Goldschmidt
2339 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2340 correct state (must be CLOSED).
2342 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2343 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2344 allocation. It now returns NULL.
2346 2007-07-13 Frédéric Bernon
2347 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2350 2007-07-13 Frédéric Bernon
2351 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2352 because current code doesn't follow rawapi.txt documentation.
2354 2007-07-13 Kieran Mansley
2355 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2356 out of sequence processing of received packets
2358 2007-07-03 Simon Goldschmidt
2359 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2360 assumption is made that this pbuf is in one piece (i.e. not chained). These
2361 assumptions clash with the possibility of converting to fully pool-based
2362 pbuf implementations, where PBUF_RAM pbufs might be chained.
2364 2007-07-03 Simon Goldschmidt
2365 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2366 when closing tcp netconns: removed conn->sem, less context switches when
2367 closing, both netconn_close and netconn_delete should safely close tcp
2370 2007-07-02 Simon Goldschmidt
2371 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2372 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2373 to cache ARP table indices with each pcb instead of single-entry cache for
2376 2007-07-02 Simon Goldschmidt
2377 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2378 warnings when assigning to smaller types.
2380 2007-06-28 Simon Goldschmidt
2381 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2383 2007-06-28 Simon Goldschmidt
2384 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2385 a segment contained chained pbufs)
2387 2007-06-28 Frédéric Bernon
2388 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2389 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2390 possible to define this macro in your own lwipopts.h to always use C library's
2391 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2393 2007-06-28 Frédéric Bernon
2394 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2395 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2396 in api_lib/api_msg (use pointers and not type with table, etc...)
2398 2007-06-26 Simon Goldschmidt
2399 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2401 2007-06-25 Simon Goldschmidt
2402 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2403 for udp packets with no matching pcb.
2405 2007-06-25 Simon Goldschmidt
2406 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2407 could get udp input packets if the remote side matched.
2409 2007-06-13 Simon Goldschmidt
2410 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2411 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2413 2007-06-13 Simon Goldschmidt
2414 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2415 -> netconn_new_..() does not allocate a new connection for unsupported
2418 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2419 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2420 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2422 2007-06-13 Frédéric Bernon, Matthias Weisser
2423 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2424 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2425 some macro names collision with some OS macros.
2427 2007-06-11 Simon Goldschmidt
2428 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2429 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2430 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2433 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2434 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2435 where TCP flags wasn't initialized in tcp_keepalive.
2437 2007-06-03 Simon Goldschmidt
2438 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2439 registered, p->payload was modified without modifying p->len if sending
2440 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2442 2007-06-03 Simon Goldschmidt
2443 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2444 re-used the input pbuf even if that didn't have enough space to include the
2445 link headers. Now the space is tested and a new pbuf is allocated for the
2446 echo response packet if the echo request pbuf isn't big enough.
2448 2007-06-01 Simon Goldschmidt
2449 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2451 2007-05-23 Frédéric Bernon
2452 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2453 allocated by do_listen if success) and netconn_accept errors handling. In
2454 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2455 by ASSERT, except for netconn_delete.
2457 2007-05-23 Frédéric Bernon
2458 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2459 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2460 directly close the recvmbox).
2462 2007-05-22 Simon Goldschmidt
2463 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2464 bound but unconnected (and non-listening) tcp_pcbs.
2466 2007-05-22 Frédéric Bernon
2467 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2468 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2469 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2470 like "sys_timeout" in their application threads.
2472 2007-05-22 Frédéric Bernon
2473 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2474 which parameters are used by which do_xxx function, and to avoid "misusing"
2475 parameters (patch #5938).
2477 2007-05-22 Simon Goldschmidt
2478 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2479 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2480 is only 8 bits wide. This affects the api, as there, the protocol was
2483 2007-05-18 Simon Goldschmidt
2484 * memp.c: addition to patch #5913: smaller pointer was returned but
2485 memp_memory was the same size -> did not save memory.
2487 2007-05-16 Simon Goldschmidt
2488 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2491 2007-05-16 Simon Goldschmidt
2492 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2493 as the one of the netif used for sending to prevent sending from old
2494 addresses after a netif address gets changed (partly fixes bug #3168).
2496 2007-05-16 Frédéric Bernon
2497 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2498 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2499 tcpip_init) because we have to be sure that network interfaces are already
2500 added (mac filter is updated only in igmp_init for the moment).
2502 2007-05-16 Simon Goldschmidt
2503 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2504 into sys_arch_sem_wait calls to prevent timers from running while waiting
2505 for the heap. This fixes bug #19167.
2507 2007-05-13 Simon Goldschmidt
2508 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2509 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2512 2007-05-07 Simon Goldschmidt
2513 * mem.c: Another attempt to fix bug #17922.
2515 2007-05-04 Simon Goldschmidt
2516 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2517 implementation so that it can be reused (don't allocate the target
2518 pbuf inside pbuf_copy()).
2520 2007-05-04 Simon Goldschmidt
2521 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2522 to save a little RAM (next pointer of memp is not used while not in pool).
2525 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2528 2007-04-23 Simon Goldschmidt
2529 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2530 in NULL reference for incoming TCP packets". Loopif has to be configured
2531 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2532 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2533 putting packets on a list that is fed to the stack by calling loopif_poll()
2534 (single-thread / NO_SYS / polling environment where e.g.
2535 netif->input() = ip_input).
2537 2007-04-17 Jonathan Larmour
2538 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2539 the difference between two u16_t's.
2540 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2541 MEMP_NUM_NETCONN in sockets.c right now.
2543 2007-04-12 Jonathan Larmour
2544 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2546 2007-04-12 Kieran Mansley
2547 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2548 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2550 2007-04-11 Simon Goldschmidt
2551 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2552 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2553 pbuf.c: removed functions no needed any more (by etharp).
2555 2007-04-11 Kieran Mansley
2556 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2557 "Constant is long" warnings with 16bit compilers. Contributed by
2558 avatar@mmlab.cse.yzu.edu.tw
2560 2007-04-05 Frédéric Bernon, Jonathan Larmour
2561 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2562 the mailbox is active". Now, the post is only done during a connect, and do_send,
2563 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2565 2007-04-03 Frédéric Bernon
2566 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2567 packets. See patch #5834.
2569 2007-03-30 Frédéric Bernon
2570 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2571 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2573 2007-03-30 Frédéric Bernon
2574 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2575 others environment defines (these were too "generic").
2577 2007-03-28 Frédéric Bernon
2578 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2579 result and can cause a crash. lwip_send now check netbuf_ref result.
2581 2007-03-28 Simon Goldschmidt
2582 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2583 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2584 defined. This is the way it should have been already (looking at
2587 2007-03-28 Kieran Mansley
2588 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2589 IP and TCP headers *and* physical link headers
2591 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2592 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2593 to send some garbage. It is not a definitive solution, but the patch does solve
2594 the problem for most cases.
2596 2007-03-22 Frédéric Bernon
2597 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2599 2007-03-22 Frédéric Bernon
2600 * api_lib.c: somes resources couldn't be freed if there was errors during
2601 netconn_new_with_proto_and_callback.
2603 2007-03-22 Frédéric Bernon
2604 * ethernetif.c: update netif->input calls to check return value. In older ports,
2605 it's a good idea to upgrade them, even if before, there could be another problem
2606 (access to an uninitialized mailbox).
2608 2007-03-21 Simon Goldschmidt
2609 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2610 by casting to unsigned).
2612 2007-03-21 Frédéric Bernon
2613 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2614 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2615 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2616 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2617 faster and more reliable communication between api_lib and tcpip.
2619 2007-03-21 Frédéric Bernon
2620 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2622 2007-03-21 Frédéric Bernon
2623 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2625 2007-03-21 Kieran Mansley
2626 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2629 2007-03-21 Kieran Mansley
2630 * Fix all uses of pbuf_header to check the return value. In some
2631 cases just assert if it fails as I'm not sure how to fix them, but
2632 this is no worse than before when they would carry on regardless
2635 2007-03-21 Kieran Mansley
2636 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2637 comment out missing header include in icmp.c
2639 2007-03-20 Frédéric Bernon
2640 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2641 synchronized with memp.h.
2643 2007-03-20 Frédéric Bernon
2644 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2645 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2646 network interfaces. Also fix a compiler warning.
2648 2007-03-20 Kieran Mansley
2649 * udp.c: Only try and use pbuf_header() to make space for headers if
2650 not a ROM or REF pbuf.
2652 2007-03-19 Frédéric Bernon
2653 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2656 2007-03-19 Frédéric Bernon
2657 * Remove unimplemented "memp_realloc" function from memp.h.
2659 2007-03-11 Simon Goldschmidt
2660 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2663 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2664 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2665 (missing `const' qualifier in socket functions), to get more compatible to
2666 standard POSIX sockets.
2668 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2669 * sockets.c: Add asserts inside bind, connect and sendto to check input
2670 parameters. Remove excessive set_errno() calls after get_socket(), because
2671 errno is set inside of get_socket(). Move last sock_set_errno() inside
2674 2007-03-09 Simon Goldschmidt
2675 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2676 was allocated too small.
2678 2007-03-06 Simon Goldschmidt
2679 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2680 the stack from concurrent access.
2682 2007-03-06 Frédéric Bernon, Dmitry Potapov
2683 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2684 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2686 2007-03-06 Simon Goldschmidt
2687 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2688 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2690 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2691 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2692 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2693 Allow to do ARP processing for incoming packets inside tcpip_thread
2694 (protecting ARP layer against concurrent access). You can also disable
2695 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2696 Older ports have to use tcpip_ethinput.
2698 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2699 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2700 from pointer target type"
2702 2007-03-05 Frédéric Bernon
2703 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2704 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2706 2007-03-04 Frédéric Bernon
2707 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2710 2007-03-04 Frédéric Bernon
2711 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2713 The api_msg struct stay on the stack (not moved to netconn struct).
2715 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2716 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2717 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2718 Also fixed cast warning in pbuf_alloc()
2720 2007-03-04 Simon Goldschmidt
2721 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2722 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2724 2007-03-03 Frédéric Bernon
2725 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2726 It is static, and never used in udp.c except udp_init().
2728 2007-03-02 Simon Goldschmidt
2729 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2730 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2731 initialized before tcpip_thread is running (e.g. before OS is started)
2733 2007-03-02 Frédéric Bernon
2734 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2737 2007-02-28 Kieran Mansley
2738 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2739 outside the region of the pbuf by pbuf_header()
2741 2007-02-28 Kieran Mansley
2742 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2743 when supplied timeout is also non-zero
2747 2006-12-05 Leon Woestenberg
2748 * CHANGELOG: Mention STABLE-1.2.0 release.
2752 2006-12-01 Christiaan Simons
2753 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2754 Note this is a workaround. Currently I have no other options left.
2756 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2757 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2758 to include/lwip/opt.h.
2759 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2760 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2761 * opt.h: Add above new options.
2763 2006-08-18 Christiaan Simons
2764 * tcp_{in,out}.c: added SNMP counters.
2765 * ipv4/ip.c: added SNMP counters.
2766 * ipv4/ip_frag.c: added SNMP counters.
2768 2006-08-08 Christiaan Simons
2769 * etharp.{c,h}: added etharp_find_addr() to read
2770 (stable) ethernet/IP address pair from ARP table
2772 2006-07-14 Christiaan Simons
2773 * mib_structs.c: added
2774 * include/lwip/snmp_structs.h: added
2775 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2777 2006-07-06 Christiaan Simons
2778 * snmp/asn1_{enc,dec}.c added
2780 * snmp/msg_{in,out}.c added
2781 * include/lwip/snmp_asn1.h added
2782 * include/lwip/snmp_msg.h added
2783 * doc/snmp_agent.txt added
2785 2006-03-29 Christiaan Simons
2786 * inet.c, inet.h: Added platform byteswap support.
2787 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2788 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2792 2006-11-30 Christiaan Simons
2793 * dhcp.c: Fixed false triggers of request_timeout.
2795 2006-11-28 Christiaan Simons
2796 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2798 2006-10-11 Christiaan Simons
2799 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2800 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2801 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2802 identifier from 170 to 136 (bug #17574).
2804 2006-10-10 Christiaan Simons
2805 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2807 2006-08-17 Christiaan Simons
2808 * udp.c: Fixed bug #17200, added check for broadcast
2809 destinations for PCBs bound to a unicast address.
2811 2006-08-07 Christiaan Simons
2812 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2814 2006-06-27 Christiaan Simons
2815 * api_msg.c: Applied patch for cold case (bug #11135).
2816 In accept_function() ensure newconn->callback is always initialized.
2818 2006-06-15 Christiaan Simons
2819 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2820 facilitate printing of mem_size_t and u16_t statistics.
2822 2006-06-14 Christiaan Simons
2823 * api_msg.c: Applied patch #5146 to handle allocation failures
2824 in accept() by Kevin Lawson.
2826 2006-05-26 Christiaan Simons
2827 * api_lib.c: Removed conn->sem creation and destruction
2828 from netconn_write() and added sys_sem_new to netconn_new_*.
2832 2006-03-03 Christiaan Simons
2833 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2834 access and added pbuf_alloc() return value checks.
2836 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2837 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2838 now handled by the checksum routine properly.
2840 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2841 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2842 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2844 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2845 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2846 submitted by Mitrani Hiroshi.
2848 2005-12-15 Christiaan Simons
2849 * inet.c: Disabled the added summing routine to preserve code space.
2851 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2852 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2853 Added Curt McDowell's optimized checksumming routine for future
2854 inclusion. Need to create test case for unaliged, aligned, odd,
2855 even length combination of cases on various endianess machines.
2857 2005-12-09 Christiaan Simons
2858 * inet.c: Rewrote standard checksum routine in proper portable C.
2860 2005-11-25 Christiaan Simons
2861 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2862 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2863 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2865 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2866 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2867 routine by Peter Jolasson.
2868 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2870 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2871 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2872 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2874 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2875 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2877 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2878 * udp.c: UDP pcb->recv() was called even when it was NULL.
2882 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2883 * etharp.*: Disabled multiple packets on the ARP queue.
2884 This clashes with TCP queueing.
2886 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2887 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2888 Halved the ARP period, doubled the period counts.
2889 ETHARP_MAX_PENDING now should be at least 2. This prevents
2890 the counter from reaching 0 right away (which would allow
2891 too little time for ARP responses to be received).
2893 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2894 * dhcp.c: Decline messages were not multicast but unicast.
2895 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2896 Do not try hard to insert arbitrary packet's source address,
2897 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2898 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2899 querying an address will see it appear in the cache (DHCP could
2900 suffer from this when a server invalidly gave an in-use address.)
2901 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2902 comparing network addresses (identifiers), not the network masks
2904 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2905 IP address actually belongs to the network of the given interface.
2907 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2908 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2912 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2913 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2914 even if one is already pending, if the rcv_wnd is above a threshold
2915 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2916 delayed ACK in order to open the window if the stack is only receiving data.
2918 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2919 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2921 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2922 * etharp.c: Make sure the first pbuf queued on an ARP entry
2923 is properly ref counted.
2925 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2926 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2927 warnings about comparison.
2928 * pbuf.c: Stopped compiler complaining of empty if statement
2929 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2930 * tcp.c: Stopped compiler complaining of empty if statement
2931 when LWIP_DEBUGF() empty.
2932 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2933 * inet.c: Added a couple of casts to quiet the compiler.
2934 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2936 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2937 * inet.c: Made data types consistent in inet_ntoa().
2938 Added casts for return values of checksum routines, to pacify compiler.
2939 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2940 Small corrections to some debugging statements, to pacify compiler.
2942 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2943 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2944 * ethernetif.c Updated low_level_output() to match prototype for
2945 netif->linkoutput and changed low_level_input() similarly for consistency.
2946 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2947 of raw_recv() in raw.h and so avoid compiler error.
2948 * sockets.c: Added trivial (int) cast to keep compiler happier.
2949 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2955 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2956 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2957 your cc.h file defines this either 1 or 0. If non-defined,
2959 * .c: Added <string.h> and <errno.h> includes where used.
2960 * etharp.c: Made some array indices unsigned.
2962 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2963 * netif.*: Added netif_set_up()/down().
2964 * dhcp.c: Changes to restart program flow.
2966 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2967 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2968 single-pass lookup for different candidates. Should exploit locality.
2970 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2971 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2972 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2973 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2974 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2978 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2979 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2980 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2981 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2982 is to prefix the 14-bit Ethernet headers with two padding bytes.
2984 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2985 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2986 * etharp.c: Fixed the case where the packet that initiates the ARP request
2987 is not queued, and gets lost. Fixed the case where the packets destination
2988 address is already known; we now always queue the packet and perform an ARP
2995 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2996 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2997 * Fixed two possible NULL references in rare cases.
3003 * Fixed DHCP which did not include the IP address in DECLINE messages.
3007 * etharp.c has been hauled over a bit.
3013 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3014 * Packets sent from ARP queue had invalid source hardware address.
3018 * Pass-by ARP requests do now update the cache.
3022 * No longer dependent on ctype.h.
3023 * New socket options.
3024 * Raw IP pcb support.
3030 * Some debug formatters and casts fixed.
3031 * Numereous fixes in PPP.
3035 * DEBUGF now is LWIP_DEBUGF
3036 * pbuf_dechain() has been re-enabled.
3037 * Mentioned the changed use of CVS branches in README.
3043 * Fixed pool pbuf memory leak in pbuf_alloc().
3044 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3045 Reported by Savin Zlobec.
3047 * PBUF_POOL chains had their tot_len field not set for non-first
3048 pbufs. Fixed in pbuf_alloc().
3052 * Added PPP stack contributed by Marc Boucher
3056 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3058 * ARP queueuing now queues the latest packet instead of the first.
3059 This is the RFC recommended behaviour, but can be overridden in
3066 * TCP has been fixed to deal with the new use of the pbuf->ref
3069 * DHCP dhcp_inform() crash bug fixed.
3073 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3074 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3075 Implemented by David Haas.
3081 * The packet buffer implementation has been enhanced to support
3082 zero-copy and copy-on-demand for packet buffers which have their
3083 payloads in application-managed memory.
3084 Implemented by David Haas.
3086 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3087 if an outgoing packet can be directly sent on the link, or perform
3088 a copy-on-demand when necessary.
3090 The application can safely assume the packet is sent, and the RAM
3091 is available to the application directly after calling udp_send()
3092 or similar function.
3096 * ARP_QUEUEING should now correctly work for all cases, including
3098 Implemented by Leon Woestenberg.
3102 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3103 to a '0.0.0.0' IP address.
3105 * The packet buffer implementation is changed. The pbuf->ref counter
3106 meaning has changed, and several pbuf functions have been
3107 adapted accordingly.
3109 * netif drivers have to be changed to set the hardware address length field
3110 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3111 See the contrib/ports/c16x cs8900 driver as a driver example.
3113 * netif's have a dhcp field that must be initialized to NULL by the driver.
3114 See the contrib/ports/c16x cs8900 driver as a driver example.
3116 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3117 logged in CVS but have not been explained here.
3119 (0.5.3) Changes since version 0.5.2
3123 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3124 threads because it wasn't protected by semaphores.
3128 * struct ip_addr now packed.
3130 * The name of the time variable in arp.c has been changed to ctime
3131 to avoid conflicts with the time() function.
3133 (0.5.2) Changes since version 0.5.1
3137 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3141 * A bug in tcp_parseopt() could cause the stack to hang because of a
3142 malformed TCP option.
3144 * The address of new connections in the accept() function in the BSD
3145 socket library was not handled correctly.
3147 * pbuf_dechain() did not update the ->tot_len field of the tail.
3149 * Aborted TCP connections were not handled correctly in all
3154 * All protocol header structs are now packed.
3156 * The ->len field in the tcp_seg structure now counts the actual
3157 amount of data, and does not add one for SYN and FIN segments.
3159 (0.5.1) Changes since version 0.5.0
3163 * Possible to run as a user process under Linux.
3165 * Preliminary support for cross platform packed structs.
3167 * ARP timer now implemented.
3171 * TCP output queue length was badly initialized when opening
3174 * TCP delayed ACKs were not sent correctly.
3176 * Explicit initialization of BSS segment variables.
3178 * read() in BSD socket library could drop data.
3180 * Problems with memory alignment.
3182 * Situations when all TCP buffers were used could lead to
3185 * TCP MSS option wasn't parsed correctly.
3187 * Problems with UDP checksum calculation.
3189 * IP multicast address tests had endianess problems.
3191 * ARP requests had wrong destination hardware address.
3195 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3197 * A ->linkoutput() member was added to struct netif.
3199 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3201 * ntoh* macros are now null definitions for big endian CPUs.
3203 (0.5.0) Changes since version 0.4.2
3207 * Redesigned operating system emulation layer to make porting easier.
3209 * Better control over TCP output buffers.
3211 * Documenation added.
3215 * Locking issues in buffer management.
3217 * Bugfixes in the sequential API.
3219 * IP forwarding could cause memory leakage. This has been fixed.
3223 * Directory structure somewhat changed; the core/ tree has been
3226 (0.4.2) Changes since version 0.4.1
3230 * Experimental ARP implementation added.
3232 * Skeleton Ethernet driver added.
3234 * Experimental BSD socket API library added.
3238 * In very intense situations, memory leakage could occur. This has
3243 * Variables named "data" and "code" have been renamed in order to
3244 avoid name conflicts in certain compilers.
3246 * Variable++ have in appliciable cases been translated to ++variable
3247 since some compilers generate better code in the latter case.
3249 (0.4.1) Changes since version 0.4
3253 * TCP: Connection attempts time out earlier than data
3254 transmissions. Nagle algorithm implemented. Push flag set on the
3255 last segment in a burst.
3257 * UDP: experimental support for UDP-Lite extensions.
3261 * TCP: out of order segments were in some cases handled incorrectly,
3262 and this has now been fixed. Delayed acknowledgements was broken
3263 in 0.4, has now been fixed. Binding to an address that is in use
3264 now results in an error. Reset connections sometimes hung an
3265 application; this has been fixed.
3267 * Checksum calculation sometimes failed for chained pbufs with odd
3268 lengths. This has been fixed.
3270 * API: a lot of bug fixes in the API. The UDP API has been improved
3271 and tested. Error reporting and handling has been
3272 improved. Logical flaws and race conditions for incoming TCP
3273 connections has been found and removed.
3275 * Memory manager: alignment issues. Reallocating memory sometimes
3276 failed, this has been fixed.
3278 * Generic library: bcopy was flawed and has been fixed.
3282 * API: all datatypes has been changed from generic ones such as
3283 ints, to specified ones such as u16_t. Functions that return
3284 errors now have the correct type (err_t).
3286 * General: A lot of code cleaned up and debugging code removed. Many
3287 portability issues have been fixed.
3289 * The license was changed; the advertising clause was removed.
3293 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3294 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3297 (0.4) Changes since version 0.3.1
3299 * Memory management has been radically changed; instead of
3300 allocating memory from a shared heap, memory for objects that are
3301 rapidly allocated and deallocated is now kept in pools. Allocation
3302 and deallocation from those memory pools is very fast. The shared
3303 heap is still present but is used less frequently.
3305 * The memory, memory pool, and packet buffer subsystems now support
3306 4-, 2-, or 1-byte alignment.
3308 * "Out of memory" situations are handled in a more robust way.
3310 * Stack usage has been reduced.
3312 * Easier configuration of lwIP parameters such as memory usage,
3313 TTLs, statistics gathering, etc. All configuration parameters are
3314 now kept in a single header file "lwipopts.h".
3316 * The directory structure has been changed slightly so that all
3317 architecture specific files are kept under the src/arch
3320 * Error propagation has been improved, both in the protocol modules
3323 * The code for the RTXC architecture has been implemented, tested
3326 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3327 the Internet checksum modules.
3329 * Bugs related to porting between a 32-bit and a 16-bit architecture
3330 have been found and corrected.
3332 * The license has been changed slightly to conform more with the
3333 original BSD license, including the advertisement clause.
3335 (0.3.1) Changes since version 0.3
3337 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3338 RAM never returned the RAM when the pbuf was deallocated.
3340 * TCP congestion control, window updates and retransmissions did not
3341 work correctly. This has now been fixed.
3343 * Bugfixes in the API.
3345 (0.3) Changes since version 0.2
3347 * New and improved directory structure. All include files are now
3348 kept in a dedicated include/ directory.
3350 * The API now has proper error handling. A new function,
3351 netconn_err(), now returns an error code for the connection in
3354 * Improvements in the memory management subsystem. The system now
3355 keeps a pointer to the lowest free memory block. A new function,
3356 mem_malloc2() tries to allocate memory once, and if it fails tries
3357 to free some memory and retry the allocation.
3359 * Much testing has been done with limited memory
3360 configurations. lwIP now does a better job when overloaded.
3362 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3364 * Many bugfixes in the TCP code:
3366 - Fixed a bug in tcp_close().
3368 - The TCP receive window was incorrectly closed when out of
3369 sequence segments was received. This has been fixed.
3371 - Connections are now timed-out of the FIN-WAIT-2 state.
3373 - The initial congestion window could in some cases be too
3374 large. This has been fixed.
3376 - The retransmission queue could in some cases be screwed up. This
3379 - TCP RST flag now handled correctly.
3381 - Out of sequence data was in some cases never delivered to the
3382 application. This has been fixed.
3384 - Retransmitted segments now contain the correct acknowledgment
3385 number and advertised window.
3387 - TCP retransmission timeout backoffs are not correctly computed
3388 (ala BSD). After a number of retransmissions, TCP now gives up
3391 * TCP connections now are kept on three lists, one for active
3392 connections, one for listening connections, and one for
3393 connections that are in TIME-WAIT. This greatly speeds up the fast
3394 timeout processing for sending delayed ACKs.
3396 * TCP now provides proper feedback to the application when a
3397 connection has been successfully set up.
3399 * More comments have been added to the code. The code has also been
3400 somewhat cleaned up.
3402 (0.2) Initial public release.