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 2013-04-26: Sylvain Rochet
84 * dhcp.c, reverted from DOS (CRLF) to UNIX format (LF), it was saved in DOS format
85 by mistake the 2012-08-13
87 2013-04-26: Sylvain Rochet
88 * ip6.h, cleared compilation warning, C++ style comments are not allowed in ISO C90
90 2013-04-24: patch by Liam <morepork>
91 * api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
93 2013-04-24: Simon Goldschmidt
94 * igmp.c: fixed possible division by zero
96 2013-04-24: Simon Goldschmidt
97 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
99 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
100 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
102 2013-01-15: Simon Goldschmidt
103 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
105 2013-01-15: Simon Goldschmidt
106 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
108 2013-01-14: Simon Goldschmidt
109 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
111 2013-01-11: Simon Goldschmidt
112 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
114 2012-09-26: Simon Goldschmidt
115 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
117 2012-09-26: patch by Henrik Persson
118 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
120 2012-09-26: patch by Henrik Persson
121 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
123 2012-08-22: Simon Goldschmidt
124 * memp.c: fixed bug #37166: memp_sanity check loops itself
126 2012-08-13: Simon Goldschmidt
127 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
130 2012-08-13: Simon Goldschmidt
131 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
132 configured but no interfaces available
134 2012-08-13: Simon Goldschmidt
135 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
137 2012-05-11: Simon Goldschmidt (patch by Marty)
138 * memp.c: fixed bug #36412: memp.c does not compile when
139 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
141 2012-05-08: Simon Goldschmidt
142 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
143 a debug-check issue only)
145 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
146 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
149 2012-05-03: Simon Goldschmidt (patch by David Empson)
150 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
153 2012-03-27: Simon Goldschmidt
154 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
156 2012-03-27: Simon Goldschmidt (patch by Mason)
157 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
160 2012-03-25: Simon Goldschmidt
161 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
162 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
164 2012-03-25: Simon Goldschmidt
165 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
166 pollution in api_msg.c and netifapi.c
168 2012-03-22: Simon Goldschmidt
169 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
171 2012-03-20: Simon Goldschmidt (patch by Mason)
172 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
174 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
175 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
176 possible bug on little endian system
178 2012-02-23: Simon Goldschmidt
179 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
180 (introduced when fixing bug# 33551)
182 2012-02-16: Simon Goldschmidt
183 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
184 (bug #35541: PPP Memory Leak)
186 2012-02-16: Simon Goldschmidt
187 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
188 (introduced when fixing bug# 33551)
190 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
191 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
193 2012-02-15: Simon Goldschmidt
194 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
197 2012-02-12: Simon Goldschmidt
198 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
199 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
201 2012-02-11: Simon Goldschmidt
202 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
205 2012-01-22: Simon Goldschmidt
206 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
208 2012-01-21: Simon Goldschmidt
209 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
211 2012-01-20: Simon Goldschmidt
212 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
214 2012-01-20: Simon Goldschmidt
215 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
217 2011-11-25: Simon Goldschmidt
218 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
219 tcp_active_pcbs in some cases
221 2011-11-23: Simon Goldschmidt
222 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
225 2011-11-22: Simon Goldschmidt
226 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
227 netif is brought down
229 2011-10-28: Simon Goldschmidt
230 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
232 2011-10-23: Simon Goldschmidt
233 * mem.c: fixed bug #34429: possible memory corruption with
234 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
236 2011-10-18: Simon Goldschmidt
237 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
240 2011-10-18: Simon Goldschmidt
241 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
242 windows (bug #34176 select after non-blocking send times out)
244 2011-10-18: Simon Goldschmidt
245 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
246 consider netif->mtu, causes slow network
248 2011-10-18: Simon Goldschmidt
249 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
251 2011-10-18: Simon Goldschmidt
252 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
254 2011-10-17: Simon Goldschmidt
255 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
257 2011-10-13: Simon Goldschmidt
258 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
259 zero window is received) by starting the persist timer when a zero window is
260 received, not when we have more data queued for sending than fits into the
263 2011-10-13: Simon Goldschmidt
264 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
266 2011-10-13: Simon Goldschmidt
267 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
268 used and not all protocols are enabled
270 2011-10-12: Simon Goldschmidt
271 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
273 2011-10-09: Simon Goldschmidt
274 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
275 byte value when pcb->unacked != NULL
277 2011-10-09: Simon Goldschmidt
278 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
280 2011-09-27: Simon Goldschmidt
281 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
283 2011-09-27: Simon Goldschmidt
284 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
286 2011-09-27: Simon Goldschmidt
287 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
289 2011-09-24: Simon Goldschmidt
290 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
292 2011-09-23: Simon Goldschmidt
293 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
294 the last packet including FIN can lose data
296 2011-09-22: Simon Goldschmidt
297 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
300 2011-09-21: Simon Goldschmidt
301 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
304 2011-09-20: Simon Goldschmidt
305 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
307 2011-09-11: Simon Goldschmidt
308 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
311 2011-09-09: Simon Goldschmidt
312 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
315 2011-09-03: Simon Goldschmidt
316 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
317 is aggregated and sent to application
319 2011-09-01: Simon Goldschmidt
320 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
323 2011-09-01: Simon Goldschmidt
324 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
326 2011-08-24: Simon Goldschmidt
327 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
329 2011-08-24: Simon Goldschmidt
330 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
331 accept() on UDP connections
333 2011-08-24: Simon Goldschmidt
334 * sockets.h: fixed bug #34057 socklen_t should be a typedef
336 2011-08-24: Simon Goldschmidt
337 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
339 2011-08-24: Simon Goldschmidt
340 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
342 2011-08-24: Simon Goldschmidt
343 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
345 2011-08-22: Simon Goldschmidt
346 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
347 merely prevents nagle from not transmitting fast after closing.)
349 2011-07-22: Simon Goldschmidt
350 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
351 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
352 lwip_send() sends as much as possible for non-blocking sockets
354 2011-07-22: Simon Goldschmidt
355 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
356 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
357 at regular intervals from main level.
359 2011-07-21: Simon Goldschmidt
360 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
361 sending an ARP request when an ARP entry is used in the last minute before
364 2011-07-04: Simon Goldschmidt
365 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
367 2011-06-26: Simon Goldschmidt
368 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
369 updating its documentation only.
371 2011-06-26: Simon Goldschmidt
372 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
375 2011-06-26: Simon Goldschmidt
376 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
384 2011-03-27: Simon Goldschmidt
385 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
386 calculate it in tcp_zero_window_probe (the only place where it was used).
388 2010-11-21: Simon Goldschmidt
389 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
392 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
393 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
394 IP_MULTICAST_LOOP at socket- and raw-API level.
396 2010-06-16: Simon Goldschmidt
397 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
398 link-layer-addressed UDP traffic to be received while a netif is down (just
399 like DHCP during configuration)
401 2010-05-22: Simon Goldschmidt
402 * many many files: bug #27352: removed packing from ip_addr_t, the packed
403 version is now only used in protocol headers. Added global storage for
404 current src/dest IP address while in input functions.
406 2010-05-16: Simon Goldschmidt
407 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
408 calculation (and use them throughout the stack where applicable)
410 2010-05-16: Simon Goldschmidt
411 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
412 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
414 2010-05-16: Simon Goldschmidt
415 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
416 MEMP pool instead of the heap
418 2010-05-13: Simon Goldschmidt
419 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
420 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
421 packets to more than one pcb.
423 2010-05-02: Simon Goldschmidt
424 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
425 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
427 2010-04-30: Simon Goldschmidt
428 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
429 take a precalculated checksum, added pbuf_fill_chksum() to copy data
430 into a pbuf and at the same time calculating the checksum for that data
432 2010-04-29: Simon Goldschmidt
433 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
434 2-byte-aligned IP addresses and MAC addresses
436 2010-04-28: Patch by Bill Auerbach
437 * ip.c: Inline generating IP checksum to save a function call
439 2010-04-14: Simon Goldschmidt
440 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
441 tcpip_thread processes messages or timeouts to implement a watchdog.
443 2010-03-28: Simon Goldschmidt
444 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
445 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
447 2010-03-27: Simon Goldschmidt
448 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
449 etharp_query to prevent unnecessary function calls (inspired by
452 2010-03-20: Simon Goldschmidt
453 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
454 since the linker cannot do this automatically to save space.
456 2010-03-20: Simon Goldschmidt
457 * opt.h, etharp.c/.h: Added support for static ARP table entries
459 2010-03-14: Simon Goldschmidt
460 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
461 when creating TCP segments, not when (re-)transmitting them.
463 2010-03-07: Simon Goldschmidt
464 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
465 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
466 This should speed up receiving data on sockets as the select code in
467 event_callback is only executed when select is waiting.
469 2010-03-06: Simon Goldschmidt
470 * tcp_out.c: task #7013 (Create option to have all packets delivered to
471 netif->output in one piece): Always copy to try to create single pbufs
474 2010-03-06: Simon Goldschmidt
475 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
476 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
477 for tcp netconns to receive pbufs, not netbufs; use that function
480 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
481 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
482 Work on tcp_enqueue: Don't waste memory when chaining segments,
483 added option TCP_OVERSIZE to prevent creating many small pbufs when
484 calling tcp_write with many small blocks of data. Instead, pbufs are
485 allocated larger than needed and the space is used for later calls to
488 2010-02-21: Simon Goldschmidt
489 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
492 2010-02-21: Simon Goldschmidt
493 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
494 implementation of tcp to make API usage cleare to application programmers
496 2010-02-14: Simon Goldschmidt/Stephane Lesage
497 * ip_addr.h: Improved some defines working on ip addresses, added faster
498 macro to copy addresses that cannot be NULL
500 2010-02-13: Simon Goldschmidt
501 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
502 blocking send operation)
504 2010-02-12: Simon Goldschmidt
505 * sockets.c/.h: Added a minimal version of posix fctl() to have a
506 standardised way to set O_NONBLOCK for nonblocking sockets.
508 2010-02-12: Simon Goldschmidt
509 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
510 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
511 and dhcp work with user-allocated structs instead of callin mem_malloc
513 2010-02-12: Simon Goldschmidt/Jeff Barber
514 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
515 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
517 2010-02-12: Simon Goldschmidt
518 * sys layer: task #10139 (Prefer statically allocated memory): converted
519 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
520 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
521 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
522 to let sys.h use binary semaphores instead of mutexes - as before)
524 2010-02-09: Simon Goldschmidt (Simon Kallweit)
525 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
526 (Restart system timeout handling)
528 2010-02-09: Simon Goldschmidt
529 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
530 netif.c) - loopif does not have to be created by the port any more,
531 just define LWIP_HAVE_LOOPIF to 1.
533 2010-02-08: Simon Goldschmidt
534 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
535 inet_ntoa_r/ipaddr_ntoa_r
537 2010-02-08: Simon Goldschmidt
538 * netif.h: Added netif_s/get_igmp_mac_filter() macros
540 2010-02-05: Simon Goldschmidt
541 * netif.h: Added function-like macros to get/set the hostname on a netif
543 2010-02-04: Simon Goldschmidt
544 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
545 make changing the actual implementation behind the typedef easier.
547 2010-02-01: Simon Goldschmidt
548 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
549 for allocating memory when getaddrinfo() is called.
551 2010-01-31: Simon Goldschmidt
552 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
553 them once instead of parsing for every option. This also removes
554 the need for mem_malloc from dhcp_recv and makes it possible to
555 correctly retrieve the BOOTP file.
557 2010-01-30: simon Goldschmidt
558 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
561 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
562 * api.h, api_msg.c, sockets.c: Added except set support in select
565 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
566 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
567 Add non-blocking support for connect (partly from patch #6860),
568 plus many cleanups in socket & netconn API.
570 2010-01-27: Simon Goldschmidt
571 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
572 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
574 2010-01-26: Simon Goldschmidt
575 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
577 2010-01-14: Simon Goldschmidt
578 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
579 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
581 2010-01-13: Simon Goldschmidt
582 * mem.c: The heap now may be moved to user-defined memory by defining
583 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
584 (patch #6966 and bug #26133)
586 2010-01-10: Simon Goldschmidt (Bill Auerbach)
587 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
590 2010-01-10: Simon Goldschmidt
591 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
592 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
594 2009-12-31: Simon Goldschmidt
595 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
596 added timers.c/.h: Separated timer implementation from semaphore/mbox
597 implementation, moved timer implementation to timers.c/.h, timers are
598 now only called from tcpip_thread or by explicitly checking them.
601 2009-12-27: Simon Goldschmidt
602 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
603 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
608 2011-04-20: Simon Goldschmidt
609 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
611 2011-04-13: Simon Goldschmidt
612 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
613 using ports in the IANA private/dynamic range (49152 through 65535).
615 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
616 * etharp.h/.c: Fixed broken VLAN support.
618 2011-03-27: Simon Goldschmidt
619 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
620 pcbs) by checking if the pcb was bound (local_port != 0).
622 2011-03-27: Simon Goldschmidt
623 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
625 2011-03-27: Simon Goldschmidt
626 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
627 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
629 2011-03-27: Simon Goldschmidt
630 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
631 is present never times out) by starting retransmission timer before checking
634 2011-03-22: Simon Goldschmidt
635 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
636 calling sio_read_abort() if the file descriptor is valid.
638 2011-03-14: Simon Goldschmidt
639 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
640 more than once can render a socket useless) since it mainly involves changing
641 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
643 2011-03-13: Simon Goldschmidt
644 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
645 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
646 use EALRADY instead of -1
648 2011-03-13: Simon Goldschmidt
649 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
650 connection has been aborted by err_tcp (since this is not a normal closing
653 2011-03-13: Simon Goldschmidt
654 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
655 with pcb->state != CLOSED
657 2011-02-17: Simon Goldschmidt
658 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
661 2011-02-17: Simon Goldschmidt
662 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
664 2011-01-24: Simon Goldschmidt
665 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
667 2010-12-02: Simon Goldschmidt
668 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
670 2010-11-23: Simon Goldschmidt
671 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
672 LWIP_SO_RCVBUF and ioctl/FIONREAD.
674 2010-11-23: Simon Goldschmidt
675 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
676 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
678 2010-11-23: Simon Goldschmidt
679 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
680 refusing 'refused_data' again.
682 2010-11-22: Simon Goldschmidt
683 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
684 after a successful nonblocking connection.
686 2010-11-22: Simon Goldschmidt
687 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
688 must be sent link-local
690 2010-11-22: Simon Goldschmidt
691 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
694 2010-11-20: Simon Goldschmidt
695 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
697 2010-11-20: Simon Goldschmidt
698 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
699 resemble other stacks.
701 2010-11-20: Simon Goldschmidt
702 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
703 no-copy TCP writes will never succeed.
705 2010-11-20: Simon Goldschmidt
706 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
707 not match documentation: return ERR_ARG instead of ERR_VAL if not
708 initialized or wrong argument.
710 2010-10-20: Simon Goldschmidt
711 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
713 2010-10-05: Simon Goldschmidt
714 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
715 replugging the network cable after an AutoIP address was assigned.
717 2010-08-10: Simon Goldschmidt
718 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
720 2010-08-03: Simon Goldschmidt
721 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
723 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
724 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
725 endian architectures)
727 2010-07-28: Simon Goldschmidt
728 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
731 2010-07-27: Simon Goldschmidt
732 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
733 harm but never did anything
735 2010-07-21: Simon Goldschmidt
736 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
739 2010-07-16: Kieran Mansley
740 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
742 2010-07-10: Simon Goldschmidt
743 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
745 2010-06-30: Simon Goldschmidt
746 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
749 2010-06-28: Kieran Mansley
750 * timers.c remove unportable printing of C function pointers
752 2010-06-24: Simon Goldschmidt
753 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
754 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
756 2010-06-24: Simon Goldschmidt
757 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
758 implemented shutdown at socket level.
760 2010-06-21: Simon Goldschmidt
761 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
762 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
763 custom pbufs that reference other (original) pbufs. Additionally set
764 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
766 2010-06-15: Simon Goldschmidt
767 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
769 2010-06-14: Simon Goldschmidt
770 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
772 2010-06-12: Simon Goldschmidt
773 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
776 2010-05-17: Simon Goldschmidt
777 * netdb.c: Correctly NULL-terminate h_addr_list
779 2010-05-16: Simon Goldschmidt
780 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
781 "symbol already defined" i.e. when linking to winsock
783 2010-05-05: Simon Goldschmidt
784 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
787 2010-04-21: Simon Goldschmidt
788 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
791 2010-03-28: Luca Ceresoli
792 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
794 2010-03-27: Luca Ceresoli
795 * mib2.c: patch #7130: remove meaningless const qualifiers
797 2010-03-26: Simon Goldschmidt
798 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
800 2010-03-26: Simon Goldschmidt
801 * various files: Fixed compiling with different options disabled (TCP/UDP),
802 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
804 2010-03-25: Simon Goldschmidt
805 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
807 2010-03-25: Simon Goldschmidt
808 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
809 overrunning our rcv_wnd in ooseq case.
811 2010-03-22: Simon Goldschmidt
812 * tcp.c: tcp_listen() did not copy the pcb's prio.
814 2010-03-19: Simon Goldschmidt
815 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
817 2010-03-14: Simon Goldschmidt
818 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
819 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
820 and basing PBUF_LINK_HLEN on it.
822 2010-03-08: Simon Goldschmidt
823 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
824 when assiging routable address): when checking incoming packets and
825 aborting existing connection on address change, filter out link-local
828 2010-03-06: Simon Goldschmidt
829 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
831 2010-03-06: Simon Goldschmidt
832 * ipv4/ip.c: Don't try to forward link-local addresses
834 2010-03-06: Simon Goldschmidt
835 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
838 2010-03-05: Simon Goldschmidt
839 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
842 2010-03-05: Simon Goldschmidt
843 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
844 into multiple calls to tcp_write.
846 2010-02-21: Simon Goldschmidt
847 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
848 the implementation of DNS_USES_STATIC_BUF==1)
850 2010-02-20: Simon Goldschmidt
851 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
852 close() vs. shutdown(). Now the application does not get any more
853 recv callbacks after calling tcp_close(). Added tcp_shutdown().
855 2010-02-19: Simon Goldschmidt
856 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
857 confusion with realloc()
859 2010-02-15: Simon Goldschmidt/Stephane Lesage
860 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
863 2010-02-14: Simon Goldschmidt
864 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
865 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
866 admin-status of a netif are up
868 2010-02-14: Simon Goldschmidt
869 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
870 reception and is not really necessary
872 2010-02-14: Simon Goldschmidt
873 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
874 request was directed as us (RFC 826, Packet Reception), otherwise
875 only update existing entries; internalized some functions
877 2010-02-14: Simon Goldschmidt
878 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
879 disabled on netif used for PPPoE) by adding a new netif flag
880 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
881 device but prevents usage of ARP (so that ethernet_input can be used
884 2010-02-12: Simon Goldschmidt
885 * netif.c: netif_set_link_up/down: only do something if the link state
888 2010-02-12: Simon Goldschmidt/Stephane Lesage
889 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
892 2010-02-12: Simon Goldschmidt
893 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
895 2010-02-09: Simon Goldschmidt
896 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
897 (recv() makes receive window update for data that wasn't received by
900 2010-02-09: Simon Goldschmidt/Stephane Lesage
901 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
902 or any netconn_recv() error)
904 2010-02-09: Simon Goldschmidt
905 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
907 2010-02-09: Simon Goldschmidt
908 * netif.c: For loopback packets, adjust the stats- and snmp-counters
909 for the loopback netif.
911 2010-02-08: Simon Goldschmidt
912 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
913 since they are not used anywhere else.
915 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
916 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
917 (patch from bug #28798)
919 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
920 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
921 another bug when LWIP_RAND() returns zero.
923 2010-02-04: Simon Goldschmidt
924 * nearly every file: Use macros defined in ip_addr.h (some of them new)
925 to work with IP addresses (preparation for bug #27352 - Change ip_addr
926 from struct to typedef (u32_t) - and better code).
928 2010-01-31: Simon Goldschmidt
929 * netif.c: Don't call the link-callback from netif_set_up/down() since
930 this invalidly retriggers DHCP.
932 2010-01-29: Simon Goldschmidt
933 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
934 portability file inet.h and its contents from the stack: moved htonX-
935 functions to def.h (and the new def.c - they are not ipv4 dependent),
936 let inet.h depend on ip_addr.h and not the other way round.
937 This fixes bug #28732.
939 2010-01-28: Kieran Mansley
940 * tcp.c: Ensure ssthresh >= 2*MSS
942 2010-01-27: Simon Goldschmidt
943 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
944 callback can lead to accessing unallocated memory. As a consequence,
945 ERR_ABRT means the application has called tcp_abort()!
947 2010-01-25: Simon Goldschmidt
948 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
949 not implemented in SNMP): write-only or not-accessible are still
950 returned by getnext (though not by get)
952 2010-01-24: Simon Goldschmidt
953 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
954 not use reserved C/C++ keywords
956 2010-01-23: Simon Goldschmidt
957 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
960 2010-01-21: Simon Goldschmidt
961 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
962 if tcp_enqueue fails) both in raw- and netconn-API
964 2010-01-19: Simon Goldschmidt
965 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
967 2010-01-18: Iordan Neshev/Simon Goldschmidt
968 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
969 bugfix backports from 2.4.x.
971 2010-01-18: Simon Goldschmidt
972 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
974 2010-01-17: Simon Goldschmidt
975 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
976 task #10102: "netconn: clean up conn->err threading issues" by adding
977 error return value to struct api_msg_msg
979 2010-01-17: Simon Goldschmidt
980 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
981 to return err_t (bugs #27709 and #28087)
983 2010-01-14: Simon Goldschmidt
984 * ...: Use typedef for function prototypes throughout the stack.
986 2010-01-13: Simon Goldschmidt
987 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
988 window = 0) by correctly draining recvmbox/acceptmbox
990 2010-01-11: Simon Goldschmidt
991 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
992 erroneous callbacks) by copying the code from recent pppd
994 2010-01-10: Simon Goldschmidt
995 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
997 2010-01-10: Simon Goldschmidt
998 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
1000 2010-01-08: Simon Goldschmidt
1001 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
1003 2010-01-08: Simon Goldschmidt
1004 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
1005 passed to dns_local_addhost() might be volatile
1007 2010-01-07: Simon Goldschmidt
1008 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
1010 2010-01-06: Simon Goldschmidt
1011 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1013 2009-12-31: Simon Goldschmidt
1014 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1015 structure to easily compare our code against the pppd code (around v2.3.1)
1017 2009-12-27: Simon Goldschmidt
1018 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1026 2009-10-27 Simon Goldschmidt/Stephan Lesage
1027 * netifapi.c/.h: Added netifapi_netif_set_addr()
1029 2009-10-07 Simon Goldschmidt/Fabian Koch
1030 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1031 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1033 2009-08-26 Simon Goldschmidt/Simon Kallweit
1034 * slipif.c/.h: bug #26397: SLIP polling support
1036 2009-08-25 Simon Goldschmidt
1037 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1038 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1040 2009-08-25 Simon Goldschmidt
1041 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1043 2009-08-24 Jakob Stoklund Olesen
1044 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1045 to netif_set_link_up().
1047 2009-08-23 Simon Goldschmidt
1048 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1049 to a human-readable string.
1053 2009-12-24: Kieran Mansley
1054 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1057 2009-12-06: Simon Goldschmidt
1058 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1059 be statically allocated (like in ucip)
1061 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1062 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1064 2009-12-03: Simon Goldschmidt
1065 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1066 could have non-zero length
1068 2009-12-02: Simon Goldschmidt
1069 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1070 tcp_input_pcb until after calling the pcb's callbacks
1072 2009-11-29: Simon Goldschmidt
1073 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1074 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1076 2009-11-29: Simon Goldschmidt
1077 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1078 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1080 2009-11-26: Simon Goldschmidt
1081 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1084 2009-11-26: Simon Goldschmidt
1085 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1086 algorithm at PCB level
1088 2009-11-22: Simon Goldschmidt
1089 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1091 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1092 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1093 reusing time-wait pcb
1095 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1096 * sockets.c: Fixed bug #28062: Data received directly after accepting
1097 does not wake up select
1099 2009-11-11: Simon Goldschmidt
1100 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1102 2009-10-30: Simon Goldschmidt
1103 * opt.h: Increased default value for TCP_MSS to 536, updated default
1104 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1106 2009-10-28: Kieran Mansley
1107 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1108 to follow algorithm from TCP/IP Illustrated
1110 2009-10-27: Kieran Mansley
1111 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1113 2009-10-25: Simon Goldschmidt
1114 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1115 pcb->recv is NULL to keep rcv_wnd correct)
1117 2009-10-25: Simon Goldschmidt
1118 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1120 2009-10-23: Simon Goldschmidt (David Empson)
1121 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1123 2009-10-21: Simon Goldschmidt
1124 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1125 trailing 1 byte len (SYN/FIN)
1127 2009-10-21: Simon Goldschmidt
1128 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1130 2009-10-19: Simon Goldschmidt
1131 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1132 conditional code to assert where applicable), check pbuf length before
1133 testing for valid reply
1135 2009-10-19: Simon Goldschmidt
1136 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1137 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1139 2009-10-16: Simon Goldschmidt
1140 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1141 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1144 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1145 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1147 2009-10-15: Simon Goldschmidt
1148 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1151 2009-10-15: Simon Goldschmidt
1152 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1153 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1154 of network byte order
1156 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1157 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1158 which are not consecutive when retransmitting unacked segments
1160 2009-10-09 Simon Goldschmidt
1161 * opt.h: Fixed default values of some stats to only be enabled if used
1162 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1164 2009-08-30 Simon Goldschmidt
1165 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1166 function" by checking for loopback before calling ip_frag
1168 2009-08-25 Simon Goldschmidt
1169 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1171 2009-08-23 Simon Goldschmidt
1172 * ppp.c: bug #27078: Possible memory leak in pppInit()
1174 2009-08-23 Simon Goldschmidt
1175 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1178 2009-08-23 Simon Goldschmidt
1179 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1180 Fixed wrong parenthesis, added check in init.c
1182 2009-08-23 Simon Goldschmidt
1183 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1185 2009-08-23 Simon Goldschmidt
1186 * many ppp files: bug #27267: Added include to string.h where needed
1188 2009-08-23 Simon Goldschmidt
1189 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1196 2009-05-10 Simon Goldschmidt
1197 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1198 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1199 one pbuf to help MACs that don't support scatter-gather DMA.
1201 2009-05-09 Simon Goldschmidt
1202 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1203 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1205 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1206 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1207 extended info about the currently received packet.
1209 2009-04-27 Simon Goldschmidt
1210 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1212 2009-04-25 Simon Goldschmidt
1213 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1214 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1216 2009-04-21 Simon Goldschmidt
1217 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1218 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1219 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1220 as an external function for lookup.
1222 2009-04-15 Simon Goldschmidt
1223 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1225 2009-03-31 Kieran Mansley
1226 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1227 TCP timestamp options, off by default. Rework tcp_enqueue() to
1228 take option flags rather than specified option data
1230 2009-02-18 Simon Goldschmidt
1231 * cc.h: Added printf formatter for size_t: SZT_F
1233 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1234 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1237 2009-02-12 Simon Goldschmidt
1238 * init.h: Added LWIP_VERSION to get the current version of the stack
1240 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1241 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1242 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1245 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1246 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1247 is only used by UDPLITE at present, so conditionalise it.
1249 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1250 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1251 "seed" address. This should reduce AUTOIP conflicts if
1252 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1254 2008-10-02 Jonathan Larmour and Rishi Khan
1255 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1258 2008-06-30 Simon Goldschmidt
1259 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1260 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1261 mem_free to run between mem_malloc iterations. Added illegal counter for
1264 2008-06-27 Simon Goldschmidt
1265 * stats.h/.c, some other files: patch #6483: stats module improvement:
1266 Added defines to display each module's statistic individually, added stats
1267 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1269 2008-06-17 Simon Goldschmidt
1270 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1271 (define LWIP_ERR_T in cc.h)
1273 2008-06-17 Simon Goldschmidt
1274 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1277 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1278 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1279 modified version of patch # 6370: Moved loopif code to netif.c so that
1280 loopback traffic is supported on all netifs (all local IPs).
1281 Added option to limit loopback packets for each netifs.
1285 2009-08-12 Kieran Mansley
1286 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1287 out of window or out of order properly
1289 2009-08-12 Kieran Mansley
1290 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1292 2009-07-28 Simon Goldschmidt
1293 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1295 2009-07-27 Kieran Mansley
1296 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1298 2009-07-09 Kieran Mansley
1299 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1300 recv_avail and don't increment counters until message successfully
1303 2009-06-25 Kieran Mansley
1304 * api_msg.c api.h: BUG26722: initialise netconn write variables
1307 2009-06-25 Kieran Mansley
1308 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1310 2009-06-25 Kieran Mansley
1311 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1312 simultaneous close behaviour, and make snd_nxt have the same meaning
1315 2009-05-12 Simon Goldschmidt
1316 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1317 arp_table / uses etharp_query" by adding etharp_gratuitous()
1319 2009-05-12 Simon Goldschmidt
1320 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1321 to the IP header (used by igmp_ip_output_if)
1323 2009-05-06 Simon Goldschmidt
1324 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1325 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1327 2009-05-05 Simon Goldschmidt
1328 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1331 2009-05-04 Simon Goldschmidt
1332 * init.c: snmp was not initialized in lwip_init()
1334 2009-05-04 Frédéric Bernon
1335 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1337 2009-05-03 Simon Goldschmidt
1338 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1339 (and unsent->next == NULL)
1341 2009-05-02 Simon Goldschmidt
1342 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1343 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1345 2009-05-02 Simon Goldschmidt
1346 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1348 2009-05-01 Simon Goldschmidt
1349 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1351 2009-05-01 Simon Goldschmidt
1352 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1354 2009-04-29 Frédéric Bernon
1355 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1356 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1357 of broadcast packets even when this option wasn't set. Port maintainers
1358 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1359 If you want this option also filter broadcast on recv operations, you also
1360 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1362 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1363 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1364 DHCP/AUTOIP cooperation
1366 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1367 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1368 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1369 right place in tcp_output and tcp_rexmit).
1371 2009-04-25 Simon Goldschmidt
1372 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1373 when debugging": memp_sizes contained the wrong sizes (including sanity
1374 regions); memp pools for MEM_USE_POOLS were too small
1376 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1377 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1378 behavior, with with ip address string not ended by a '\0', a space or a
1381 2009-04-19 Simon Goldschmidt
1382 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1383 pcb->err is called, not pcb->connected (with an error code).
1385 2009-04-19 Simon Goldschmidt
1386 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1387 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1389 2009-04-19 Simon Goldschmidt
1390 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1391 in the header pbuf, not the data pbuf)
1393 2009-04-18 Simon Goldschmidt
1394 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1396 2009-04-15 Simon Goldschmidt
1397 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1399 2009-04-15 Simon Goldschmidt
1400 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1402 2009-04-15 Simon Goldschmidt
1403 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1404 ip_hinted_output() (for smaller code mainly)
1406 2009-04-15 Simon Goldschmidt
1407 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1409 2009-04-15 Simon Goldschmidt
1410 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1411 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1412 is big enough in dhcp_start
1414 2009-04-15 Simon Goldschmidt
1415 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1417 2009-04-15 Simon Goldschmidt
1418 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1420 2009-04-15 Simon Goldschmidt
1421 * sockets.c: bug #26121: set_errno can be overridden
1423 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1424 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1427 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1428 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1431 2009-03-31 Kieran Mansley
1432 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1433 updates are calculated and sent (BUG20515)
1435 * tcp_in.c: cope with SYN packets received during established states,
1436 and retransmission of initial SYN.
1438 * tcp_out.c: set push bit correctly when tcp segments are merged
1440 2009-03-27 Kieran Mansley
1441 * tcp_out.c set window correctly on probes (correcting change made
1444 2009-03-26 Kieran Mansley
1445 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1446 connections where no reset required (bug #25622)
1448 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1451 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1452 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1453 too small depending on MEM_ALIGNMENT
1455 2009-02-16 Simon Goldschmidt
1456 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1457 converted size argument of netconn_write to 'size_t'
1459 2009-02-16 Simon Goldschmidt
1460 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1461 by moving accept callback function pointer to TCP_PCB_COMMON
1463 2009-02-12 Simon Goldschmidt
1464 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1467 2009-02-11 Simon Goldschmidt
1468 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1470 2009-02-11 Simon Goldschmidt
1471 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1472 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1474 2009-02-10 Simon Goldschmidt
1475 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1476 Accepts_pending is decrease on a corresponding listen pcb when a connection
1477 in state SYN_RCVD is close.
1479 2009-01-28 Jonathan Larmour
1480 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1483 2008-12-19 Simon Goldschmidt
1484 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1486 2008-12-10 Tamas Somogyi, Frédéric Bernon
1487 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1488 port uses deleted netbuf.
1490 2008-10-18 Simon Goldschmidt
1491 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1494 2008-10-15 Simon Goldschmidt
1495 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1496 by packing the struct ip_reass_helper.
1498 2008-10-03 David Woodhouse, Jonathan Larmour
1499 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1501 2008-10-02 Jonathan Larmour
1502 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1503 padding is included.
1505 2008-09-30 Jonathan Larmour
1506 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1507 assertion check that addrlen isn't NULL.
1509 2008-09-30 Jonathan Larmour
1510 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1512 2008-08-26 Simon Goldschmidt
1513 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1514 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1516 2008-08-14 Simon Goldschmidt
1517 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1518 tcp_close returns != ERR_OK)
1520 2008-07-08 Frédéric Bernon
1521 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1522 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1524 2008-06-24 Jonathan Larmour
1525 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1526 if tcp_seg_copy fails.
1528 2008-06-17 Simon Goldschmidt
1529 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1530 and created defines for swapping bytes and folding u32 to u16.
1532 2008-05-30 Kieran Mansley
1533 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1534 rather than rcv_ann_wnd when deciding if packets are in-window.
1535 Contributed by <arasmussen@consultant.datasys.swri.edu>
1537 2008-05-30 Kieran Mansley
1538 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1539 passing as function pointers when MEM_LIBC_MALLOC is defined.
1541 2008-05-09 Jonathan Larmour
1542 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1543 stop it being treated as a fatal error.
1545 2008-04-15 Simon Goldschmidt
1546 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1549 2008-03-27 Simon Goldschmidt
1550 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1551 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1552 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1553 or heap memory from interrupt context
1555 2008-03-26 Simon Goldschmidt
1556 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1557 host sent a zero mss as TCP option.
1564 2008-03-10 Jonathan Larmour
1565 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1566 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1568 2008-01-22 Frédéric Bernon
1569 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1570 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1572 2008-01-14 Frédéric Bernon
1573 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1574 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1575 tcp_recv callback (see rawapi.txt).
1577 2008-01-14 Frédéric Bernon, Marc Chaland
1578 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1580 2008-01-12 Frédéric Bernon
1581 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1582 netconn::sem per netconn::op_completed like suggested for the task #7490
1583 "Add return value to sys_mbox_post".
1585 2008-01-12 Frédéric Bernon
1586 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1587 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1588 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1590 2008-01-10 Frédéric Bernon
1591 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1592 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1593 "blocking" ("block" parameter = 1).
1595 2008-01-10 Frédéric Bernon
1596 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1597 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1598 "Add return value to sys_mbox_post".
1600 2008-01-05 Frédéric Bernon
1601 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1602 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1603 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1604 indicate the number of pointers query by the mailbox. There is three defines
1605 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1606 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1607 parameter in your implementation, but to ignore it to keep the previous behavior.
1608 The new sys_mbox_trypost function return a value to know if the mailbox is
1609 full or if the message is posted. Take a look to sys_arch.txt for more details.
1610 This new function is used in tcpip_input (so, can be called in an interrupt
1611 context since the function is not blocking), and in recv_udp and recv_raw.
1613 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1614 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1615 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1616 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1617 documentation in the rawapi.txt file.
1619 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1620 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1622 2007-12-31 Frédéric Bernon, Luca Ceresoli
1623 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1624 in autoip". The change in etharp_raw could be removed, since all calls to
1625 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1626 wrong in the future.
1628 2007-12-30 Frédéric Bernon, Tom Evans
1629 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1630 Filtering" reported by Tom Evans.
1632 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1633 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1634 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1635 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1636 keep accepting new connections.
1638 2007-12-13 Frédéric Bernon
1639 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1640 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1642 2007-12-12 Frédéric Bernon
1643 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1644 are the one which have ram usage.
1646 2007-12-05 Frédéric Bernon
1647 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1648 set of variables (=0) or a local one (=1). In this last case, your port should
1649 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1650 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1652 2007-12-03 Simon Goldschmidt
1653 * ip.c: ip_input: check if a packet is for inp first before checking all other
1654 netifs on netif_list (speeds up packet receiving in most cases)
1656 2007-11-30 Simon Goldschmidt
1657 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1658 UDP: move a (connected) pcb selected for input to the front of the list of
1659 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1662 2007-11-28 Simon Goldschmidt
1663 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1665 2007-11-25 Simon Goldschmidt
1666 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1669 2007-11-24 Simon Goldschmidt
1670 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1671 to the new file netdb.c; included lwip_getaddrinfo.
1673 2007-11-21 Simon Goldschmidt
1674 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1675 based on the MTU of the netif used to send. Enabled by default. Disable by
1676 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1678 2007-11-19 Frédéric Bernon
1679 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1680 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1681 copy dns payload to parse the response), return an error if there is no place
1682 for a new query, and fix some minor problems.
1684 2007-11-16 Simon Goldschmidt
1685 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1686 removed files: core/inet.c, core/inet6.c
1687 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1688 inet and chksum part; changed includes in all lwIP files as appropriate
1690 2007-11-16 Simon Goldschmidt
1691 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1692 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1693 (gethostbyname/gethostbyname_r).
1695 2007-11-15 Jim Pettinato, Frédéric Bernon
1696 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1697 requests with RAW api interface. Initialization is done in lwip_init() with
1698 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1699 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1700 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1701 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1702 list with points to improve.
1704 2007-11-06 Simon Goldschmidt
1705 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1706 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1707 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1709 2007-11-06 Simon Goldschmidt
1710 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1711 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1712 implementation from netconn api applications.
1714 2007-11-03 Frédéric Bernon
1715 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1716 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1717 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1718 it. This is a first release which have to be improve for TCP. Note it used the
1719 netconn::recv_avail which need to be more "thread-safe" (note there is already
1720 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1722 2007-11-01 Frédéric Bernon, Marc Chaland
1723 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1724 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1725 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1726 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1727 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1729 2007-10-24 Frédéric Bernon
1730 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1731 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1732 some code (like we have talk in "patch #5919 : Create compile switch to remove
1733 select code"), but it could be done later.
1735 2007-10-08 Simon Goldschmidt
1736 * many files: Changed initialization: many init functions are not needed any
1737 more since we now rely on the compiler initializing global and static
1740 2007-10-06 Simon Goldschmidt
1741 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1742 to enqueue the received pbufs so that multiple packets can be reassembled
1743 simultaneously and no static reassembly buffer is needed.
1745 2007-10-05 Simon Goldschmidt
1746 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1747 all netifs (or ports) can use it.
1749 2007-10-05 Frédéric Bernon
1750 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1751 common function to reduce a little bit the footprint (for all functions using
1752 only the "netif" parameter).
1754 2007-10-03 Frédéric Bernon
1755 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1756 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1757 a little bit the footprint (for all functions using only the "netif" parameter).
1759 2007-09-15 Frédéric Bernon
1760 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1761 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1762 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1763 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1765 2007-09-10 Frédéric Bernon
1766 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1767 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1768 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1769 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1770 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1771 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1772 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1773 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1774 when it's queried (any direct call to "sysuptime" is changed by a call to
1775 snmp_get_sysuptime).
1777 2007-09-09 Frédéric Bernon, Bill Florac
1778 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1779 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1780 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1781 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1782 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1783 the next query message to receive the matching multicast streams).
1785 2007-09-08 Frédéric Bernon
1786 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1787 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1788 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1789 Enable to access to these fields with LWIP_TCP=0.
1791 2007-09-05 Frédéric Bernon
1792 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1793 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1794 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1795 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1796 help to reduce footprint, and to reduce "visibility" on the Internet.
1798 2007-09-05 Frédéric Bernon, Bill Florac
1799 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1800 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1801 parameters have to be provided: a task name, and a task stack size. For this
1802 one, since it's platform dependant, you could define the best one for you in
1803 your lwipopts.h. For port maintainers, you can just add these new parameters
1804 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1807 2007-09-05 Frédéric Bernon
1808 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1809 inside init.c for task #7142 "Sanity check user-configurable values".
1811 2007-09-04 Frédéric Bernon, Bill Florac
1812 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1813 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1814 value). It will avoid potential fragmentation problems, use a counter to know
1815 how many times a group is used on an netif, and free it when all applications
1816 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1817 check if LWIP_IGMP!=0).
1819 2007-09-03 Frédéric Bernon
1820 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1821 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1822 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1823 and/or the "interface" field (for netconn layer), for join/leave operations.
1824 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1825 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1827 2007-08-30 Frédéric Bernon
1828 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1829 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1830 with other API (application based on raw API, or future "socket2" API). Ports
1831 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1833 2007-08-30 Frédéric Bernon, Jonathan Larmour
1834 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1835 user-configurable values".
1837 2007-08-29 Frédéric Bernon
1838 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1839 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1840 spirit than the others modules. Modify some IGMP debug traces.
1842 2007-08-29 Frédéric Bernon
1843 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1844 Add lwip_init function to regroup all modules initializations, and to provide
1845 a place to add code for task #7142 "Sanity check user-configurable values".
1846 Ports maintainers should remove direct initializations calls from their code,
1847 and add init.c in their makefiles. Note that lwip_init() function is called
1848 inside tcpip_init, but can also be used by raw api users since all calls are
1849 disabled when matching options are disabled. Also note that their is new options
1850 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1852 2007-08-26 Marc Boucher
1853 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1854 since they can under certain circumstances be called with an invalid conn
1855 pointer after the connection has been closed (and conn has been freed).
1857 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1858 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1859 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1861 2007-08-22 Frédéric Bernon
1862 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1863 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1865 2007-08-22 Frédéric Bernon
1866 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1867 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1868 name is tcpip_input (we keep the name of 1.2.0 function).
1870 2007-08-17 Jared Grubb
1871 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1872 settings into new memp_std.h and optional user file lwippools.h. This adds
1873 more dynamic mempools, and allows the user to create an arbitrary number of
1874 mempools for mem_malloc.
1876 2007-08-16 Marc Boucher
1877 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1878 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1879 close the connection.
1881 2007-08-16 Marc Boucher
1882 * sockets.c: lwip_accept(): check netconn_peer() error return.
1884 2007-08-16 Marc Boucher
1885 * mem.c, mem.h: Added mem_calloc().
1887 2007-08-16 Marc Boucher
1888 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1889 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1890 and starving other message types.
1891 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1893 2007-08-16 Marc Boucher
1894 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1895 type and flgs (later renamed to flags).
1896 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1897 Improved lwip_recvfrom(). TCP push now propagated.
1899 2007-08-16 Marc Boucher
1900 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1903 2007-08-16 Marc Boucher
1904 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1905 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1906 Added PPPoE support and various PPP improvements.
1908 2007-07-25 Simon Goldschmidt
1909 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1910 making netbuf_copy_partial use this function.
1912 2007-07-25 Simon Goldschmidt
1913 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1914 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1917 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1918 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1919 a link callback in the netif struct, and functions to handle it. Be carefull
1920 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1921 if you want to be sure to be compatible with future changes...
1923 2007-06-30 Frédéric Bernon
1924 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1926 2007-06-21 Simon Goldschmidt
1927 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1928 LWIP_AUTOIP =0 and =1 to remove redundant code.
1930 2007-06-21 Simon Goldschmidt
1931 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1932 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1933 heap. This both prevents memory fragmentation and gives a higher speed
1934 at the cost of more memory consumption. Turned off by default.
1936 2007-06-21 Simon Goldschmidt
1937 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1938 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1939 int to be able to send a bigger buffer than 64K with one time (mainly
1940 used from lwip_send).
1942 2007-06-21 Simon Goldschmidt
1943 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1944 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1946 2007-06-21 Simon Goldschmidt
1947 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1948 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1949 changes on low memory or empty send-buffer.
1951 2007-06-18 Simon Goldschmidt
1952 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1953 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1954 used for ethernet and struct eth_addr already had a defined length of 6).
1956 2007-06-17 Simon Goldschmidt
1957 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1958 to disable UDP checksum generation on transmit.
1960 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1961 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1962 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1963 this macro to check "conn" parameter in api_msg.c functions.
1965 2007-06-11 Simon Goldschmidt
1966 * sockets.c, sockets.h: Added UDP lite support for sockets
1968 2007-06-10 Simon Goldschmidt
1969 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1970 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1973 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1974 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1975 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1976 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1977 (see TODO mark in the source code).
1979 2007-06-09 Simon Goldschmidt
1980 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1981 etharp_output() to match netif->output so etharp_output() can be used
1982 directly as netif->output to save one function call.
1984 2007-06-08 Simon Goldschmidt
1985 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1986 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1987 added initialization of those to ethernetif, slipif and loopif.
1989 2007-05-18 Simon Goldschmidt
1990 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1991 (defaulting to off for now) that can be set to 0 to send fragmented
1992 packets by passing PBUF_REFs down the stack.
1994 2007-05-23 Frédéric Bernon
1995 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1996 connections, such present in patch #5959.
1998 2007-05-23 Frédéric Bernon
1999 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
2000 code in only one part...
2002 2007-05-18 Simon Goldschmidt
2003 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
2004 elements to overflow. This is achieved by adding some bytes before and after
2005 each pool element (increasing their size, of course), filling them with a
2006 prominent value and checking them on freeing the element.
2007 Set it to 2 to also check every element in every pool each time memp_malloc()
2008 or memp_free() is called (slower but more helpful).
2010 2007-05-10 Simon Goldschmidt
2011 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
2012 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2015 2007-05-11 Frédéric Bernon
2016 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2017 Include a function pointer instead of a table index in the message to reduce
2018 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2019 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2021 2007-05-10 Simon Goldschmidt
2022 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2023 \ extern "C" {' in all header files. Now you can write your application using
2024 the lwIP stack in C++ and simply #include the core files. Note I have left
2025 out the netif/ppp/*h header files for now, since I don't know which files are
2026 included by applications and which are for internal use only.
2028 2007-05-09 Simon Goldschmidt
2029 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2030 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2031 situations where some compilers might inline the copy and save a function
2032 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2034 2007-05-08 Simon Goldschmidt
2035 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2036 to be overriden in case the C-library malloc implementation is not protected
2037 against concurrent access.
2039 2007-05-04 Simon Goldschmidt (Atte Kojo)
2040 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2041 multiple packets to the same host.
2043 2007-05-04 Frédéric Bernon, Jonathan Larmour
2044 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2045 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2046 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2047 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2048 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2049 these fields are now renamed "addr" & "port".
2051 2007-04-11 Jonathan Larmour
2052 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2053 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2054 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2055 by the port in sys_arch.h if desired.
2057 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2058 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2059 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2060 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2062 2007-04-05 Frédéric Bernon
2063 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2065 2007-04-04 Simon Goldschmidt
2066 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2067 use this for and architecture-independent form to tell the compiler you intentionally
2068 are not using this variable. Can be overriden in cc.h.
2070 2007-03-28 Frédéric Bernon
2071 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2072 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2073 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2074 It will be used by DHCP to register a client hostname, but can also be use when you call
2077 2007-03-28 Frédéric Bernon
2078 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2079 initialize a network interface's flag with. It tell this interface is an ethernet
2080 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2081 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2083 2007-03-26 Frédéric Bernon, Jonathan Larmour
2084 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2085 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2086 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2087 is done in tcpip_init function.
2089 2007-03-22 Frédéric Bernon
2090 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2091 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2092 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2093 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2094 but never used. Fix msg_in.c with the correct #if test for a stat display.
2096 2007-03-21 Kieran Mansley
2097 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2098 Provides callback on netif up/down state change.
2100 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2101 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2102 ip.c, netif.h, tcpip.c, opt.h:
2103 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2104 filter per all network interfaces. Declare a new function in netif to enable to
2105 control the MAC filter (to reduce lwIP traffic processing).
2107 2007-03-11 Frédéric Bernon
2108 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2109 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2110 unless you know what you're doing (default are RFC1122 compliant). Note
2111 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2113 2007-03-08 Frédéric Bernon
2114 * tcp.h: Keepalive values can be configured at compile time, but don't change
2115 this unless you know what you're doing (default are RFC1122 compliant).
2117 2007-03-08 Frédéric Bernon
2118 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2119 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2120 on UDP sockets/netconn.
2122 2007-03-08 Simon Goldschmidt
2123 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2125 2007-03-06 Frédéric Bernon
2126 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2127 Implement SO_RCVTIMEO on UDP sockets/netconn.
2129 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2130 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2131 on the stack and remove the API msg type from memp
2133 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2134 * sockets.h, sockets.c: Move socket initialization to new
2135 lwip_socket_init() function.
2136 NOTE: this changes the API with ports. Ports will have to be
2137 updated to call lwip_socket_init() now.
2139 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2140 * api_lib.c: Use memcpy in netbuf_copy_partial.
2145 2008-03-17 Frédéric Bernon, Ed Kerekes
2146 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2147 some problems to fill the IP header on some targets, use now the
2148 ip.h macros to do it).
2150 2008-03-13 Frédéric Bernon
2151 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2152 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2153 TCP connection caused a crash. Note that using (lwip_)recvfrom
2154 like this is a bit slow and that using (lwip)getpeername is the
2155 good lwip way to do it (so, using recv is faster on tcp sockets).
2157 2008-03-12 Frédéric Bernon, Jonathan Larmour
2158 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2159 recv_raw() does not consume data", and the ping sample (with
2160 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2161 returned the IP payload, without the IP header).
2163 2008-03-04 Jonathan Larmour
2164 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2165 and/or warnings on some systems where mem_size_t and size_t differ.
2166 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2168 2008-03-04 Kieran Mansley (contributions by others)
2169 * Numerous small compiler error/warning fixes from contributions to
2170 mailing list after 1.3.0 release candidate made.
2172 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2173 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2175 2008-01-15 Kieran Mansley
2176 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2177 prevented from sending by a small send window, not just a zero
2180 2008-01-09 Jonathan Larmour
2181 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2182 conflict with Linux system headers.
2184 2008-01-06 Jonathan Larmour
2185 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2186 address entirely on receiving a DHCPNAK, and restarting discovery.
2188 2007-12-21 Simon Goldschmidt
2189 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2190 is not protected" by using new macros for interlocked access to modify/test
2191 netconn->recv_avail.
2193 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2194 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2196 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2197 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2198 of silly window avoidance and prevent lwIP from shrinking the window)
2200 2007-12-04 Simon Goldschmidt
2201 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2202 data packet was lost): add assert that all segment lists are empty in
2203 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2204 state from LAST_ACK in tcp_process
2206 2007-12-02 Simon Goldschmidt
2207 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2208 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2209 has to be set to 0 in lwipopts.h
2211 2007-12-02 Simon Goldschmidt
2212 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2213 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2214 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2215 This is a fix for thread-safety and allocates all items needed for a netconn
2216 when the netconn is created.
2218 2007-11-30 Simon Goldschmidt
2219 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2220 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2221 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2222 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2224 2007-11-27 Simon Goldschmidt
2225 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2226 letting ip_route only use netifs that are up.
2228 2007-11-27 Simon Goldschmidt
2229 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2230 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2231 sockets block most operations once they have seen a fatal error.
2233 2007-11-27 Simon Goldschmidt
2234 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2235 netif to send as an argument (to be able to send on netifs that are down).
2237 2007-11-26 Simon Goldschmidt
2238 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2241 2007-11-21 Simon Goldschmidt
2242 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2243 Fixed the nagle algorithm; nagle now also works for all raw API applications
2244 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2246 2007-11-12 Frédéric Bernon
2247 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2248 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2249 context in do_getaddr.
2251 2007-11-10 Simon Goldschmidt
2252 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2253 happen any time). Now the packet simply isn't enqueued when out of memory.
2255 2007-11-01 Simon Goldschmidt
2256 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2257 TCP_MSS if that is smaller) as long as no MSS option is received from the
2260 2007-11-01 Simon Goldschmidt
2261 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2262 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2263 sending our configured TCP_MSS instead of the one received).
2265 2007-11-01 Simon Goldschmidt
2266 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2267 calculated based on the configured TCP_MSS, not on the MSS option received
2270 2007-10-09 Simon Goldschmidt
2271 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2272 short and also was generated wrong if checksum coverage != tot_len;
2273 receive: checksum was calculated wrong if checksum coverage != tot_len
2275 2007-10-08 Simon Goldschmidt
2276 * mem.c: lfree was not updated in mem_realloc!
2278 2007-10-07 Frédéric Bernon
2279 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2280 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2281 this change cause an API breakage for netconn_addr, since a parameter
2282 type change. Any compiler should cause an error without any changes in
2283 yours netconn_peer calls (so, it can't be a "silent change"). It also
2284 reduce a little bit the footprint for socket layer (lwip_getpeername &
2285 lwip_getsockname use now a common lwip_getaddrname function since
2286 netconn_peer & netconn_addr have the same parameters).
2288 2007-09-20 Simon Goldschmidt
2289 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2290 by checking tcp_tw_pcbs also
2292 2007-09-19 Simon Goldschmidt
2293 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2295 2007-09-15 Mike Kleshov
2296 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2298 2007-09-06 Frédéric Bernon
2299 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2300 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2301 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2302 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2304 2007-08-30 Frédéric Bernon
2305 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2306 and fix some coding style.
2308 2007-08-28 Frédéric Bernon
2309 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2310 kind of packets. These packets are considered like Ethernet packets (payload
2311 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2312 are considered like IP packets (payload pointing to iphdr).
2314 2007-08-27 Frédéric Bernon
2315 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2316 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2317 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2319 2007-08-24 Kieran Mansley
2320 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2321 compiler (Paradigm C++)
2323 2007-08-09 Frédéric Bernon, Bill Florac
2324 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2325 Introduce IGMP_STATS to centralize statistics management.
2327 2007-08-09 Frédéric Bernon, Bill Florac
2328 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2329 packet on a udp pcb binded on an netif's IP address, and not on "any".
2331 2007-08-09 Frédéric Bernon, Bill Florac
2332 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2333 This is mainly on using lookup/lookfor, and some coding styles...
2335 2007-07-26 Frédéric Bernon (and "thedoctor")
2336 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2338 2007-07-25 Simon Goldschmidt
2339 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2340 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2341 (tcp_output is called again later from tcp timers).
2343 2007-07-25 Simon Goldschmidt
2344 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2345 copy_from_pbuf, which illegally modified the given pbuf.
2347 2007-07-25 Simon Goldschmidt
2348 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2349 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2351 2007-07-24 Simon Goldschmidt
2352 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2353 correct state (must be CLOSED).
2355 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2356 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2357 allocation. It now returns NULL.
2359 2007-07-13 Frédéric Bernon
2360 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2363 2007-07-13 Frédéric Bernon
2364 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2365 because current code doesn't follow rawapi.txt documentation.
2367 2007-07-13 Kieran Mansley
2368 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2369 out of sequence processing of received packets
2371 2007-07-03 Simon Goldschmidt
2372 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2373 assumption is made that this pbuf is in one piece (i.e. not chained). These
2374 assumptions clash with the possibility of converting to fully pool-based
2375 pbuf implementations, where PBUF_RAM pbufs might be chained.
2377 2007-07-03 Simon Goldschmidt
2378 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2379 when closing tcp netconns: removed conn->sem, less context switches when
2380 closing, both netconn_close and netconn_delete should safely close tcp
2383 2007-07-02 Simon Goldschmidt
2384 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2385 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2386 to cache ARP table indices with each pcb instead of single-entry cache for
2389 2007-07-02 Simon Goldschmidt
2390 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2391 warnings when assigning to smaller types.
2393 2007-06-28 Simon Goldschmidt
2394 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2396 2007-06-28 Simon Goldschmidt
2397 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2398 a segment contained chained pbufs)
2400 2007-06-28 Frédéric Bernon
2401 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2402 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2403 possible to define this macro in your own lwipopts.h to always use C library's
2404 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2406 2007-06-28 Frédéric Bernon
2407 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2408 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2409 in api_lib/api_msg (use pointers and not type with table, etc...)
2411 2007-06-26 Simon Goldschmidt
2412 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2414 2007-06-25 Simon Goldschmidt
2415 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2416 for udp packets with no matching pcb.
2418 2007-06-25 Simon Goldschmidt
2419 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2420 could get udp input packets if the remote side matched.
2422 2007-06-13 Simon Goldschmidt
2423 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2424 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2426 2007-06-13 Simon Goldschmidt
2427 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2428 -> netconn_new_..() does not allocate a new connection for unsupported
2431 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2432 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2433 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2435 2007-06-13 Frédéric Bernon, Matthias Weisser
2436 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2437 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2438 some macro names collision with some OS macros.
2440 2007-06-11 Simon Goldschmidt
2441 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2442 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2443 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2446 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2447 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2448 where TCP flags wasn't initialized in tcp_keepalive.
2450 2007-06-03 Simon Goldschmidt
2451 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2452 registered, p->payload was modified without modifying p->len if sending
2453 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2455 2007-06-03 Simon Goldschmidt
2456 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2457 re-used the input pbuf even if that didn't have enough space to include the
2458 link headers. Now the space is tested and a new pbuf is allocated for the
2459 echo response packet if the echo request pbuf isn't big enough.
2461 2007-06-01 Simon Goldschmidt
2462 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2464 2007-05-23 Frédéric Bernon
2465 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2466 allocated by do_listen if success) and netconn_accept errors handling. In
2467 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2468 by ASSERT, except for netconn_delete.
2470 2007-05-23 Frédéric Bernon
2471 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2472 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2473 directly close the recvmbox).
2475 2007-05-22 Simon Goldschmidt
2476 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2477 bound but unconnected (and non-listening) tcp_pcbs.
2479 2007-05-22 Frédéric Bernon
2480 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2481 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2482 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2483 like "sys_timeout" in their application threads.
2485 2007-05-22 Frédéric Bernon
2486 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2487 which parameters are used by which do_xxx function, and to avoid "misusing"
2488 parameters (patch #5938).
2490 2007-05-22 Simon Goldschmidt
2491 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2492 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2493 is only 8 bits wide. This affects the api, as there, the protocol was
2496 2007-05-18 Simon Goldschmidt
2497 * memp.c: addition to patch #5913: smaller pointer was returned but
2498 memp_memory was the same size -> did not save memory.
2500 2007-05-16 Simon Goldschmidt
2501 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2504 2007-05-16 Simon Goldschmidt
2505 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2506 as the one of the netif used for sending to prevent sending from old
2507 addresses after a netif address gets changed (partly fixes bug #3168).
2509 2007-05-16 Frédéric Bernon
2510 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2511 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2512 tcpip_init) because we have to be sure that network interfaces are already
2513 added (mac filter is updated only in igmp_init for the moment).
2515 2007-05-16 Simon Goldschmidt
2516 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2517 into sys_arch_sem_wait calls to prevent timers from running while waiting
2518 for the heap. This fixes bug #19167.
2520 2007-05-13 Simon Goldschmidt
2521 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2522 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2525 2007-05-07 Simon Goldschmidt
2526 * mem.c: Another attempt to fix bug #17922.
2528 2007-05-04 Simon Goldschmidt
2529 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2530 implementation so that it can be reused (don't allocate the target
2531 pbuf inside pbuf_copy()).
2533 2007-05-04 Simon Goldschmidt
2534 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2535 to save a little RAM (next pointer of memp is not used while not in pool).
2538 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2541 2007-04-23 Simon Goldschmidt
2542 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2543 in NULL reference for incoming TCP packets". Loopif has to be configured
2544 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2545 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2546 putting packets on a list that is fed to the stack by calling loopif_poll()
2547 (single-thread / NO_SYS / polling environment where e.g.
2548 netif->input() = ip_input).
2550 2007-04-17 Jonathan Larmour
2551 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2552 the difference between two u16_t's.
2553 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2554 MEMP_NUM_NETCONN in sockets.c right now.
2556 2007-04-12 Jonathan Larmour
2557 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2559 2007-04-12 Kieran Mansley
2560 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2561 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2563 2007-04-11 Simon Goldschmidt
2564 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2565 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2566 pbuf.c: removed functions no needed any more (by etharp).
2568 2007-04-11 Kieran Mansley
2569 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2570 "Constant is long" warnings with 16bit compilers. Contributed by
2571 avatar@mmlab.cse.yzu.edu.tw
2573 2007-04-05 Frédéric Bernon, Jonathan Larmour
2574 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2575 the mailbox is active". Now, the post is only done during a connect, and do_send,
2576 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2578 2007-04-03 Frédéric Bernon
2579 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2580 packets. See patch #5834.
2582 2007-03-30 Frédéric Bernon
2583 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2584 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2586 2007-03-30 Frédéric Bernon
2587 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2588 others environment defines (these were too "generic").
2590 2007-03-28 Frédéric Bernon
2591 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2592 result and can cause a crash. lwip_send now check netbuf_ref result.
2594 2007-03-28 Simon Goldschmidt
2595 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2596 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2597 defined. This is the way it should have been already (looking at
2600 2007-03-28 Kieran Mansley
2601 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2602 IP and TCP headers *and* physical link headers
2604 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2605 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2606 to send some garbage. It is not a definitive solution, but the patch does solve
2607 the problem for most cases.
2609 2007-03-22 Frédéric Bernon
2610 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2612 2007-03-22 Frédéric Bernon
2613 * api_lib.c: somes resources couldn't be freed if there was errors during
2614 netconn_new_with_proto_and_callback.
2616 2007-03-22 Frédéric Bernon
2617 * ethernetif.c: update netif->input calls to check return value. In older ports,
2618 it's a good idea to upgrade them, even if before, there could be another problem
2619 (access to an uninitialized mailbox).
2621 2007-03-21 Simon Goldschmidt
2622 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2623 by casting to unsigned).
2625 2007-03-21 Frédéric Bernon
2626 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2627 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2628 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2629 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2630 faster and more reliable communication between api_lib and tcpip.
2632 2007-03-21 Frédéric Bernon
2633 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2635 2007-03-21 Frédéric Bernon
2636 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2638 2007-03-21 Kieran Mansley
2639 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2642 2007-03-21 Kieran Mansley
2643 * Fix all uses of pbuf_header to check the return value. In some
2644 cases just assert if it fails as I'm not sure how to fix them, but
2645 this is no worse than before when they would carry on regardless
2648 2007-03-21 Kieran Mansley
2649 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2650 comment out missing header include in icmp.c
2652 2007-03-20 Frédéric Bernon
2653 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2654 synchronized with memp.h.
2656 2007-03-20 Frédéric Bernon
2657 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2658 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2659 network interfaces. Also fix a compiler warning.
2661 2007-03-20 Kieran Mansley
2662 * udp.c: Only try and use pbuf_header() to make space for headers if
2663 not a ROM or REF pbuf.
2665 2007-03-19 Frédéric Bernon
2666 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2669 2007-03-19 Frédéric Bernon
2670 * Remove unimplemented "memp_realloc" function from memp.h.
2672 2007-03-11 Simon Goldschmidt
2673 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2676 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2677 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2678 (missing `const' qualifier in socket functions), to get more compatible to
2679 standard POSIX sockets.
2681 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2682 * sockets.c: Add asserts inside bind, connect and sendto to check input
2683 parameters. Remove excessive set_errno() calls after get_socket(), because
2684 errno is set inside of get_socket(). Move last sock_set_errno() inside
2687 2007-03-09 Simon Goldschmidt
2688 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2689 was allocated too small.
2691 2007-03-06 Simon Goldschmidt
2692 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2693 the stack from concurrent access.
2695 2007-03-06 Frédéric Bernon, Dmitry Potapov
2696 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2697 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2699 2007-03-06 Simon Goldschmidt
2700 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2701 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2703 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2704 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2705 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2706 Allow to do ARP processing for incoming packets inside tcpip_thread
2707 (protecting ARP layer against concurrent access). You can also disable
2708 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2709 Older ports have to use tcpip_ethinput.
2711 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2712 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2713 from pointer target type"
2715 2007-03-05 Frédéric Bernon
2716 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2717 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2719 2007-03-04 Frédéric Bernon
2720 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2723 2007-03-04 Frédéric Bernon
2724 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2726 The api_msg struct stay on the stack (not moved to netconn struct).
2728 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2729 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2730 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2731 Also fixed cast warning in pbuf_alloc()
2733 2007-03-04 Simon Goldschmidt
2734 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2735 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2737 2007-03-03 Frédéric Bernon
2738 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2739 It is static, and never used in udp.c except udp_init().
2741 2007-03-02 Simon Goldschmidt
2742 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2743 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2744 initialized before tcpip_thread is running (e.g. before OS is started)
2746 2007-03-02 Frédéric Bernon
2747 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2750 2007-02-28 Kieran Mansley
2751 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2752 outside the region of the pbuf by pbuf_header()
2754 2007-02-28 Kieran Mansley
2755 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2756 when supplied timeout is also non-zero
2760 2006-12-05 Leon Woestenberg
2761 * CHANGELOG: Mention STABLE-1.2.0 release.
2765 2006-12-01 Christiaan Simons
2766 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2767 Note this is a workaround. Currently I have no other options left.
2769 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2770 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2771 to include/lwip/opt.h.
2772 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2773 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2774 * opt.h: Add above new options.
2776 2006-08-18 Christiaan Simons
2777 * tcp_{in,out}.c: added SNMP counters.
2778 * ipv4/ip.c: added SNMP counters.
2779 * ipv4/ip_frag.c: added SNMP counters.
2781 2006-08-08 Christiaan Simons
2782 * etharp.{c,h}: added etharp_find_addr() to read
2783 (stable) ethernet/IP address pair from ARP table
2785 2006-07-14 Christiaan Simons
2786 * mib_structs.c: added
2787 * include/lwip/snmp_structs.h: added
2788 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2790 2006-07-06 Christiaan Simons
2791 * snmp/asn1_{enc,dec}.c added
2793 * snmp/msg_{in,out}.c added
2794 * include/lwip/snmp_asn1.h added
2795 * include/lwip/snmp_msg.h added
2796 * doc/snmp_agent.txt added
2798 2006-03-29 Christiaan Simons
2799 * inet.c, inet.h: Added platform byteswap support.
2800 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2801 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2805 2006-11-30 Christiaan Simons
2806 * dhcp.c: Fixed false triggers of request_timeout.
2808 2006-11-28 Christiaan Simons
2809 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2811 2006-10-11 Christiaan Simons
2812 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2813 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2814 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2815 identifier from 170 to 136 (bug #17574).
2817 2006-10-10 Christiaan Simons
2818 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2820 2006-08-17 Christiaan Simons
2821 * udp.c: Fixed bug #17200, added check for broadcast
2822 destinations for PCBs bound to a unicast address.
2824 2006-08-07 Christiaan Simons
2825 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2827 2006-06-27 Christiaan Simons
2828 * api_msg.c: Applied patch for cold case (bug #11135).
2829 In accept_function() ensure newconn->callback is always initialized.
2831 2006-06-15 Christiaan Simons
2832 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2833 facilitate printing of mem_size_t and u16_t statistics.
2835 2006-06-14 Christiaan Simons
2836 * api_msg.c: Applied patch #5146 to handle allocation failures
2837 in accept() by Kevin Lawson.
2839 2006-05-26 Christiaan Simons
2840 * api_lib.c: Removed conn->sem creation and destruction
2841 from netconn_write() and added sys_sem_new to netconn_new_*.
2845 2006-03-03 Christiaan Simons
2846 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2847 access and added pbuf_alloc() return value checks.
2849 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2850 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2851 now handled by the checksum routine properly.
2853 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2854 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2855 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2857 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2858 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2859 submitted by Mitrani Hiroshi.
2861 2005-12-15 Christiaan Simons
2862 * inet.c: Disabled the added summing routine to preserve code space.
2864 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2865 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2866 Added Curt McDowell's optimized checksumming routine for future
2867 inclusion. Need to create test case for unaliged, aligned, odd,
2868 even length combination of cases on various endianess machines.
2870 2005-12-09 Christiaan Simons
2871 * inet.c: Rewrote standard checksum routine in proper portable C.
2873 2005-11-25 Christiaan Simons
2874 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2875 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2876 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2878 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2879 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2880 routine by Peter Jolasson.
2881 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2883 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2884 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2885 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2887 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2888 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2890 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2891 * udp.c: UDP pcb->recv() was called even when it was NULL.
2895 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2896 * etharp.*: Disabled multiple packets on the ARP queue.
2897 This clashes with TCP queueing.
2899 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2900 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2901 Halved the ARP period, doubled the period counts.
2902 ETHARP_MAX_PENDING now should be at least 2. This prevents
2903 the counter from reaching 0 right away (which would allow
2904 too little time for ARP responses to be received).
2906 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2907 * dhcp.c: Decline messages were not multicast but unicast.
2908 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2909 Do not try hard to insert arbitrary packet's source address,
2910 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2911 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2912 querying an address will see it appear in the cache (DHCP could
2913 suffer from this when a server invalidly gave an in-use address.)
2914 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2915 comparing network addresses (identifiers), not the network masks
2917 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2918 IP address actually belongs to the network of the given interface.
2920 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2921 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2925 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2926 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2927 even if one is already pending, if the rcv_wnd is above a threshold
2928 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2929 delayed ACK in order to open the window if the stack is only receiving data.
2931 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2932 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2934 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2935 * etharp.c: Make sure the first pbuf queued on an ARP entry
2936 is properly ref counted.
2938 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2939 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2940 warnings about comparison.
2941 * pbuf.c: Stopped compiler complaining of empty if statement
2942 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2943 * tcp.c: Stopped compiler complaining of empty if statement
2944 when LWIP_DEBUGF() empty.
2945 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2946 * inet.c: Added a couple of casts to quiet the compiler.
2947 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2949 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2950 * inet.c: Made data types consistent in inet_ntoa().
2951 Added casts for return values of checksum routines, to pacify compiler.
2952 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2953 Small corrections to some debugging statements, to pacify compiler.
2955 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2956 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2957 * ethernetif.c Updated low_level_output() to match prototype for
2958 netif->linkoutput and changed low_level_input() similarly for consistency.
2959 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2960 of raw_recv() in raw.h and so avoid compiler error.
2961 * sockets.c: Added trivial (int) cast to keep compiler happier.
2962 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2968 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2969 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2970 your cc.h file defines this either 1 or 0. If non-defined,
2972 * .c: Added <string.h> and <errno.h> includes where used.
2973 * etharp.c: Made some array indices unsigned.
2975 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2976 * netif.*: Added netif_set_up()/down().
2977 * dhcp.c: Changes to restart program flow.
2979 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2980 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2981 single-pass lookup for different candidates. Should exploit locality.
2983 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2984 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2985 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2986 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2987 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2991 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2992 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2993 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2994 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2995 is to prefix the 14-bit Ethernet headers with two padding bytes.
2997 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2998 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2999 * etharp.c: Fixed the case where the packet that initiates the ARP request
3000 is not queued, and gets lost. Fixed the case where the packets destination
3001 address is already known; we now always queue the packet and perform an ARP
3008 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
3009 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
3010 * Fixed two possible NULL references in rare cases.
3016 * Fixed DHCP which did not include the IP address in DECLINE messages.
3020 * etharp.c has been hauled over a bit.
3026 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3027 * Packets sent from ARP queue had invalid source hardware address.
3031 * Pass-by ARP requests do now update the cache.
3035 * No longer dependent on ctype.h.
3036 * New socket options.
3037 * Raw IP pcb support.
3043 * Some debug formatters and casts fixed.
3044 * Numereous fixes in PPP.
3048 * DEBUGF now is LWIP_DEBUGF
3049 * pbuf_dechain() has been re-enabled.
3050 * Mentioned the changed use of CVS branches in README.
3056 * Fixed pool pbuf memory leak in pbuf_alloc().
3057 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3058 Reported by Savin Zlobec.
3060 * PBUF_POOL chains had their tot_len field not set for non-first
3061 pbufs. Fixed in pbuf_alloc().
3065 * Added PPP stack contributed by Marc Boucher
3069 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3071 * ARP queueuing now queues the latest packet instead of the first.
3072 This is the RFC recommended behaviour, but can be overridden in
3079 * TCP has been fixed to deal with the new use of the pbuf->ref
3082 * DHCP dhcp_inform() crash bug fixed.
3086 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3087 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3088 Implemented by David Haas.
3094 * The packet buffer implementation has been enhanced to support
3095 zero-copy and copy-on-demand for packet buffers which have their
3096 payloads in application-managed memory.
3097 Implemented by David Haas.
3099 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3100 if an outgoing packet can be directly sent on the link, or perform
3101 a copy-on-demand when necessary.
3103 The application can safely assume the packet is sent, and the RAM
3104 is available to the application directly after calling udp_send()
3105 or similar function.
3109 * ARP_QUEUEING should now correctly work for all cases, including
3111 Implemented by Leon Woestenberg.
3115 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3116 to a '0.0.0.0' IP address.
3118 * The packet buffer implementation is changed. The pbuf->ref counter
3119 meaning has changed, and several pbuf functions have been
3120 adapted accordingly.
3122 * netif drivers have to be changed to set the hardware address length field
3123 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3124 See the contrib/ports/c16x cs8900 driver as a driver example.
3126 * netif's have a dhcp field that must be initialized to NULL by the driver.
3127 See the contrib/ports/c16x cs8900 driver as a driver example.
3129 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3130 logged in CVS but have not been explained here.
3132 (0.5.3) Changes since version 0.5.2
3136 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3137 threads because it wasn't protected by semaphores.
3141 * struct ip_addr now packed.
3143 * The name of the time variable in arp.c has been changed to ctime
3144 to avoid conflicts with the time() function.
3146 (0.5.2) Changes since version 0.5.1
3150 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3154 * A bug in tcp_parseopt() could cause the stack to hang because of a
3155 malformed TCP option.
3157 * The address of new connections in the accept() function in the BSD
3158 socket library was not handled correctly.
3160 * pbuf_dechain() did not update the ->tot_len field of the tail.
3162 * Aborted TCP connections were not handled correctly in all
3167 * All protocol header structs are now packed.
3169 * The ->len field in the tcp_seg structure now counts the actual
3170 amount of data, and does not add one for SYN and FIN segments.
3172 (0.5.1) Changes since version 0.5.0
3176 * Possible to run as a user process under Linux.
3178 * Preliminary support for cross platform packed structs.
3180 * ARP timer now implemented.
3184 * TCP output queue length was badly initialized when opening
3187 * TCP delayed ACKs were not sent correctly.
3189 * Explicit initialization of BSS segment variables.
3191 * read() in BSD socket library could drop data.
3193 * Problems with memory alignment.
3195 * Situations when all TCP buffers were used could lead to
3198 * TCP MSS option wasn't parsed correctly.
3200 * Problems with UDP checksum calculation.
3202 * IP multicast address tests had endianess problems.
3204 * ARP requests had wrong destination hardware address.
3208 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3210 * A ->linkoutput() member was added to struct netif.
3212 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3214 * ntoh* macros are now null definitions for big endian CPUs.
3216 (0.5.0) Changes since version 0.4.2
3220 * Redesigned operating system emulation layer to make porting easier.
3222 * Better control over TCP output buffers.
3224 * Documenation added.
3228 * Locking issues in buffer management.
3230 * Bugfixes in the sequential API.
3232 * IP forwarding could cause memory leakage. This has been fixed.
3236 * Directory structure somewhat changed; the core/ tree has been
3239 (0.4.2) Changes since version 0.4.1
3243 * Experimental ARP implementation added.
3245 * Skeleton Ethernet driver added.
3247 * Experimental BSD socket API library added.
3251 * In very intense situations, memory leakage could occur. This has
3256 * Variables named "data" and "code" have been renamed in order to
3257 avoid name conflicts in certain compilers.
3259 * Variable++ have in appliciable cases been translated to ++variable
3260 since some compilers generate better code in the latter case.
3262 (0.4.1) Changes since version 0.4
3266 * TCP: Connection attempts time out earlier than data
3267 transmissions. Nagle algorithm implemented. Push flag set on the
3268 last segment in a burst.
3270 * UDP: experimental support for UDP-Lite extensions.
3274 * TCP: out of order segments were in some cases handled incorrectly,
3275 and this has now been fixed. Delayed acknowledgements was broken
3276 in 0.4, has now been fixed. Binding to an address that is in use
3277 now results in an error. Reset connections sometimes hung an
3278 application; this has been fixed.
3280 * Checksum calculation sometimes failed for chained pbufs with odd
3281 lengths. This has been fixed.
3283 * API: a lot of bug fixes in the API. The UDP API has been improved
3284 and tested. Error reporting and handling has been
3285 improved. Logical flaws and race conditions for incoming TCP
3286 connections has been found and removed.
3288 * Memory manager: alignment issues. Reallocating memory sometimes
3289 failed, this has been fixed.
3291 * Generic library: bcopy was flawed and has been fixed.
3295 * API: all datatypes has been changed from generic ones such as
3296 ints, to specified ones such as u16_t. Functions that return
3297 errors now have the correct type (err_t).
3299 * General: A lot of code cleaned up and debugging code removed. Many
3300 portability issues have been fixed.
3302 * The license was changed; the advertising clause was removed.
3306 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3307 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3310 (0.4) Changes since version 0.3.1
3312 * Memory management has been radically changed; instead of
3313 allocating memory from a shared heap, memory for objects that are
3314 rapidly allocated and deallocated is now kept in pools. Allocation
3315 and deallocation from those memory pools is very fast. The shared
3316 heap is still present but is used less frequently.
3318 * The memory, memory pool, and packet buffer subsystems now support
3319 4-, 2-, or 1-byte alignment.
3321 * "Out of memory" situations are handled in a more robust way.
3323 * Stack usage has been reduced.
3325 * Easier configuration of lwIP parameters such as memory usage,
3326 TTLs, statistics gathering, etc. All configuration parameters are
3327 now kept in a single header file "lwipopts.h".
3329 * The directory structure has been changed slightly so that all
3330 architecture specific files are kept under the src/arch
3333 * Error propagation has been improved, both in the protocol modules
3336 * The code for the RTXC architecture has been implemented, tested
3339 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3340 the Internet checksum modules.
3342 * Bugs related to porting between a 32-bit and a 16-bit architecture
3343 have been found and corrected.
3345 * The license has been changed slightly to conform more with the
3346 original BSD license, including the advertisement clause.
3348 (0.3.1) Changes since version 0.3
3350 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3351 RAM never returned the RAM when the pbuf was deallocated.
3353 * TCP congestion control, window updates and retransmissions did not
3354 work correctly. This has now been fixed.
3356 * Bugfixes in the API.
3358 (0.3) Changes since version 0.2
3360 * New and improved directory structure. All include files are now
3361 kept in a dedicated include/ directory.
3363 * The API now has proper error handling. A new function,
3364 netconn_err(), now returns an error code for the connection in
3367 * Improvements in the memory management subsystem. The system now
3368 keeps a pointer to the lowest free memory block. A new function,
3369 mem_malloc2() tries to allocate memory once, and if it fails tries
3370 to free some memory and retry the allocation.
3372 * Much testing has been done with limited memory
3373 configurations. lwIP now does a better job when overloaded.
3375 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3377 * Many bugfixes in the TCP code:
3379 - Fixed a bug in tcp_close().
3381 - The TCP receive window was incorrectly closed when out of
3382 sequence segments was received. This has been fixed.
3384 - Connections are now timed-out of the FIN-WAIT-2 state.
3386 - The initial congestion window could in some cases be too
3387 large. This has been fixed.
3389 - The retransmission queue could in some cases be screwed up. This
3392 - TCP RST flag now handled correctly.
3394 - Out of sequence data was in some cases never delivered to the
3395 application. This has been fixed.
3397 - Retransmitted segments now contain the correct acknowledgment
3398 number and advertised window.
3400 - TCP retransmission timeout backoffs are not correctly computed
3401 (ala BSD). After a number of retransmissions, TCP now gives up
3404 * TCP connections now are kept on three lists, one for active
3405 connections, one for listening connections, and one for
3406 connections that are in TIME-WAIT. This greatly speeds up the fast
3407 timeout processing for sending delayed ACKs.
3409 * TCP now provides proper feedback to the application when a
3410 connection has been successfully set up.
3412 * More comments have been added to the code. The code has also been
3413 somewhat cleaned up.
3415 (0.2) Initial public release.