5 * [Enter new changes just after this line - do not remove this line]
9 2012-03-25: Simon Goldschmidt (idea by Mason)
10 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
11 which are a simple wrapper to the correct lwIP include files.
13 2012-01-16: Simon Goldschmidt
14 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
16 2011-12-17: Simon Goldschmidt
17 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
20 2011-09-27: Simon Goldschmidt
21 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
22 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
24 2011-09-21: Simon Goldschmidt
25 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
26 send (TCP only, bug #33820)
28 2011-09-21: Simon Goldschmidt
29 * init.c: Converted runtime-sanity-checks into compile-time checks that can
30 be disabled (since runtime checks can often not be seen on embedded targets)
32 2011-09-11: Simon Goldschmidt
33 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
34 to get a clear separation of which functions an application or port may use
37 2011-09-11: Simon Goldschmidt
38 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
39 initial local TCP/UDP ports (so that different port ranges are used after
40 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
42 2011-09-03: Simon Goldschmidt
43 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
45 2011-08-24: Simon Goldschmidt
46 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
48 2011-07-26: Simon Goldschmidt
49 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
50 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
52 2011-07-21: Simon Goldschmidt (patch by hanhui)
53 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
54 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
55 Also added code to allow ip_forward() to forward non-broadcast packets to
56 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
58 2011-07-21: Simon Goldschmidt
59 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
60 ioctl/FIONREAD return the size of the next pending datagram.
62 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
63 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
66 2011-05-25: Simon Goldschmidt
67 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
68 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
69 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
70 code so that the code is more readable.
72 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
73 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
74 Ivan! (this is work in progress: we're just post release anyway :-)
76 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
77 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
83 2013-04-24: patch by Liam <morepork>
84 api_msg.c: patch #8008 Fix a potential null pointer dereference in assert
86 2013-04-24: Simon Goldschmidt
87 * igmp.c: fixed possible division by zero
89 2013-04-24: Simon Goldschmidt
90 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
92 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
93 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
95 2013-01-15: Simon Goldschmidt
96 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
98 2013-01-15: Simon Goldschmidt
99 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
101 2013-01-14: Simon Goldschmidt
102 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
104 2013-01-11: Simon Goldschmidt
105 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
107 2012-09-26: Simon Goldschmidt
108 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
110 2012-09-26: patch by Henrik Persson
111 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
113 2012-09-26: patch by Henrik Persson
114 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
116 2012-08-22: Simon Goldschmidt
117 * memp.c: fixed bug #37166: memp_sanity check loops itself
119 2012-08-13: Simon Goldschmidt
120 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
123 2012-08-13: Simon Goldschmidt
124 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
125 configured but no interfaces available
127 2012-08-13: Simon Goldschmidt
128 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
130 2012-05-11: Simon Goldschmidt (patch by Marty)
131 * memp.c: fixed bug #36412: memp.c does not compile when
132 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
134 2012-05-08: Simon Goldschmidt
135 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
136 a debug-check issue only)
138 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
139 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
142 2012-05-03: Simon Goldschmidt (patch by David Empson)
143 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
146 2012-03-27: Simon Goldschmidt
147 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
149 2012-03-27: Simon Goldschmidt (patch by Mason)
150 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
153 2012-03-25: Simon Goldschmidt
154 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
155 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
157 2012-03-25: Simon Goldschmidt
158 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
159 pollution in api_msg.c and netifapi.c
161 2012-03-22: Simon Goldschmidt
162 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
164 2012-03-20: Simon Goldschmidt (patch by Mason)
165 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
167 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
168 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
169 possible bug on little endian system
171 2012-02-23: Simon Goldschmidt
172 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
173 (introduced when fixing bug# 33551)
175 2012-02-16: Simon Goldschmidt
176 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
177 (bug #35541: PPP Memory Leak)
179 2012-02-16: Simon Goldschmidt
180 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
181 (introduced when fixing bug# 33551)
183 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
184 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
186 2012-02-15: Simon Goldschmidt
187 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
190 2012-02-12: Simon Goldschmidt
191 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
192 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
194 2012-02-11: Simon Goldschmidt
195 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
198 2012-01-22: Simon Goldschmidt
199 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
201 2012-01-21: Simon Goldschmidt
202 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
204 2012-01-20: Simon Goldschmidt
205 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
207 2012-01-20: Simon Goldschmidt
208 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
210 2011-11-25: Simon Goldschmidt
211 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
212 tcp_active_pcbs in some cases
214 2011-11-23: Simon Goldschmidt
215 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
218 2011-11-22: Simon Goldschmidt
219 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
220 netif is brought down
222 2011-10-28: Simon Goldschmidt
223 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
225 2011-10-23: Simon Goldschmidt
226 * mem.c: fixed bug #34429: possible memory corruption with
227 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
229 2011-10-18: Simon Goldschmidt
230 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
233 2011-10-18: Simon Goldschmidt
234 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
235 windows (bug #34176 select after non-blocking send times out)
237 2011-10-18: Simon Goldschmidt
238 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
239 consider netif->mtu, causes slow network
241 2011-10-18: Simon Goldschmidt
242 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
244 2011-10-18: Simon Goldschmidt
245 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
247 2011-10-17: Simon Goldschmidt
248 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
250 2011-10-13: Simon Goldschmidt
251 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
252 zero window is received) by starting the persist timer when a zero window is
253 received, not when we have more data queued for sending than fits into the
256 2011-10-13: Simon Goldschmidt
257 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
259 2011-10-13: Simon Goldschmidt
260 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
261 used and not all protocols are enabled
263 2011-10-12: Simon Goldschmidt
264 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
266 2011-10-09: Simon Goldschmidt
267 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
268 byte value when pcb->unacked != NULL
270 2011-10-09: Simon Goldschmidt
271 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
273 2011-09-27: Simon Goldschmidt
274 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
276 2011-09-27: Simon Goldschmidt
277 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
279 2011-09-27: Simon Goldschmidt
280 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
282 2011-09-24: Simon Goldschmidt
283 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
285 2011-09-23: Simon Goldschmidt
286 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
287 the last packet including FIN can lose data
289 2011-09-22: Simon Goldschmidt
290 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
293 2011-09-21: Simon Goldschmidt
294 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
297 2011-09-20: Simon Goldschmidt
298 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
300 2011-09-11: Simon Goldschmidt
301 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
304 2011-09-09: Simon Goldschmidt
305 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
308 2011-09-03: Simon Goldschmidt
309 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
310 is aggregated and sent to application
312 2011-09-01: Simon Goldschmidt
313 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
316 2011-09-01: Simon Goldschmidt
317 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
319 2011-08-24: Simon Goldschmidt
320 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
322 2011-08-24: Simon Goldschmidt
323 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
324 accept() on UDP connections
326 2011-08-24: Simon Goldschmidt
327 * sockets.h: fixed bug #34057 socklen_t should be a typedef
329 2011-08-24: Simon Goldschmidt
330 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
332 2011-08-24: Simon Goldschmidt
333 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
335 2011-08-24: Simon Goldschmidt
336 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
338 2011-08-22: Simon Goldschmidt
339 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
340 merely prevents nagle from not transmitting fast after closing.)
342 2011-07-22: Simon Goldschmidt
343 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
344 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
345 lwip_send() sends as much as possible for non-blocking sockets
347 2011-07-22: Simon Goldschmidt
348 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
349 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
350 at regular intervals from main level.
352 2011-07-21: Simon Goldschmidt
353 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
354 sending an ARP request when an ARP entry is used in the last minute before
357 2011-07-04: Simon Goldschmidt
358 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
360 2011-06-26: Simon Goldschmidt
361 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
362 updating its documentation only.
364 2011-06-26: Simon Goldschmidt
365 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
368 2011-06-26: Simon Goldschmidt
369 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
377 2011-03-27: Simon Goldschmidt
378 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
379 calculate it in tcp_zero_window_probe (the only place where it was used).
381 2010-11-21: Simon Goldschmidt
382 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
385 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
386 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
387 IP_MULTICAST_LOOP at socket- and raw-API level.
389 2010-06-16: Simon Goldschmidt
390 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
391 link-layer-addressed UDP traffic to be received while a netif is down (just
392 like DHCP during configuration)
394 2010-05-22: Simon Goldschmidt
395 * many many files: bug #27352: removed packing from ip_addr_t, the packed
396 version is now only used in protocol headers. Added global storage for
397 current src/dest IP address while in input functions.
399 2010-05-16: Simon Goldschmidt
400 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
401 calculation (and use them throughout the stack where applicable)
403 2010-05-16: Simon Goldschmidt
404 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
405 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
407 2010-05-16: Simon Goldschmidt
408 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
409 MEMP pool instead of the heap
411 2010-05-13: Simon Goldschmidt
412 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
413 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
414 packets to more than one pcb.
416 2010-05-02: Simon Goldschmidt
417 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
418 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
420 2010-04-30: Simon Goldschmidt
421 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
422 take a precalculated checksum, added pbuf_fill_chksum() to copy data
423 into a pbuf and at the same time calculating the checksum for that data
425 2010-04-29: Simon Goldschmidt
426 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
427 2-byte-aligned IP addresses and MAC addresses
429 2010-04-28: Patch by Bill Auerbach
430 * ip.c: Inline generating IP checksum to save a function call
432 2010-04-14: Simon Goldschmidt
433 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
434 tcpip_thread processes messages or timeouts to implement a watchdog.
436 2010-03-28: Simon Goldschmidt
437 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
438 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
440 2010-03-27: Simon Goldschmidt
441 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
442 etharp_query to prevent unnecessary function calls (inspired by
445 2010-03-20: Simon Goldschmidt
446 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
447 since the linker cannot do this automatically to save space.
449 2010-03-20: Simon Goldschmidt
450 * opt.h, etharp.c/.h: Added support for static ARP table entries
452 2010-03-14: Simon Goldschmidt
453 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
454 when creating TCP segments, not when (re-)transmitting them.
456 2010-03-07: Simon Goldschmidt
457 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
458 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
459 This should speed up receiving data on sockets as the select code in
460 event_callback is only executed when select is waiting.
462 2010-03-06: Simon Goldschmidt
463 * tcp_out.c: task #7013 (Create option to have all packets delivered to
464 netif->output in one piece): Always copy to try to create single pbufs
467 2010-03-06: Simon Goldschmidt
468 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
469 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
470 for tcp netconns to receive pbufs, not netbufs; use that function
473 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
474 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
475 Work on tcp_enqueue: Don't waste memory when chaining segments,
476 added option TCP_OVERSIZE to prevent creating many small pbufs when
477 calling tcp_write with many small blocks of data. Instead, pbufs are
478 allocated larger than needed and the space is used for later calls to
481 2010-02-21: Simon Goldschmidt
482 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
485 2010-02-21: Simon Goldschmidt
486 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
487 implementation of tcp to make API usage cleare to application programmers
489 2010-02-14: Simon Goldschmidt/Stephane Lesage
490 * ip_addr.h: Improved some defines working on ip addresses, added faster
491 macro to copy addresses that cannot be NULL
493 2010-02-13: Simon Goldschmidt
494 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
495 blocking send operation)
497 2010-02-12: Simon Goldschmidt
498 * sockets.c/.h: Added a minimal version of posix fctl() to have a
499 standardised way to set O_NONBLOCK for nonblocking sockets.
501 2010-02-12: Simon Goldschmidt
502 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
503 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
504 and dhcp work with user-allocated structs instead of callin mem_malloc
506 2010-02-12: Simon Goldschmidt/Jeff Barber
507 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
508 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
510 2010-02-12: Simon Goldschmidt
511 * sys layer: task #10139 (Prefer statically allocated memory): converted
512 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
513 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
514 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
515 to let sys.h use binary semaphores instead of mutexes - as before)
517 2010-02-09: Simon Goldschmidt (Simon Kallweit)
518 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
519 (Restart system timeout handling)
521 2010-02-09: Simon Goldschmidt
522 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
523 netif.c) - loopif does not have to be created by the port any more,
524 just define LWIP_HAVE_LOOPIF to 1.
526 2010-02-08: Simon Goldschmidt
527 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
528 inet_ntoa_r/ipaddr_ntoa_r
530 2010-02-08: Simon Goldschmidt
531 * netif.h: Added netif_s/get_igmp_mac_filter() macros
533 2010-02-05: Simon Goldschmidt
534 * netif.h: Added function-like macros to get/set the hostname on a netif
536 2010-02-04: Simon Goldschmidt
537 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
538 make changing the actual implementation behind the typedef easier.
540 2010-02-01: Simon Goldschmidt
541 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
542 for allocating memory when getaddrinfo() is called.
544 2010-01-31: Simon Goldschmidt
545 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
546 them once instead of parsing for every option. This also removes
547 the need for mem_malloc from dhcp_recv and makes it possible to
548 correctly retrieve the BOOTP file.
550 2010-01-30: simon Goldschmidt
551 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
554 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
555 * api.h, api_msg.c, sockets.c: Added except set support in select
558 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
559 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
560 Add non-blocking support for connect (partly from patch #6860),
561 plus many cleanups in socket & netconn API.
563 2010-01-27: Simon Goldschmidt
564 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
565 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
567 2010-01-26: Simon Goldschmidt
568 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
570 2010-01-14: Simon Goldschmidt
571 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
572 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
574 2010-01-13: Simon Goldschmidt
575 * mem.c: The heap now may be moved to user-defined memory by defining
576 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
577 (patch #6966 and bug #26133)
579 2010-01-10: Simon Goldschmidt (Bill Auerbach)
580 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
583 2010-01-10: Simon Goldschmidt
584 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
585 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
587 2009-12-31: Simon Goldschmidt
588 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
589 added timers.c/.h: Separated timer implementation from semaphore/mbox
590 implementation, moved timer implementation to timers.c/.h, timers are
591 now only called from tcpip_thread or by explicitly checking them.
594 2009-12-27: Simon Goldschmidt
595 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
596 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
601 2011-04-20: Simon Goldschmidt
602 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
604 2011-04-13: Simon Goldschmidt
605 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
606 using ports in the IANA private/dynamic range (49152 through 65535).
608 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
609 * etharp.h/.c: Fixed broken VLAN support.
611 2011-03-27: Simon Goldschmidt
612 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
613 pcbs) by checking if the pcb was bound (local_port != 0).
615 2011-03-27: Simon Goldschmidt
616 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
618 2011-03-27: Simon Goldschmidt
619 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
620 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
622 2011-03-27: Simon Goldschmidt
623 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
624 is present never times out) by starting retransmission timer before checking
627 2011-03-22: Simon Goldschmidt
628 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
629 calling sio_read_abort() if the file descriptor is valid.
631 2011-03-14: Simon Goldschmidt
632 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
633 more than once can render a socket useless) since it mainly involves changing
634 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
636 2011-03-13: Simon Goldschmidt
637 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
638 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
639 use EALRADY instead of -1
641 2011-03-13: Simon Goldschmidt
642 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
643 connection has been aborted by err_tcp (since this is not a normal closing
646 2011-03-13: Simon Goldschmidt
647 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
648 with pcb->state != CLOSED
650 2011-02-17: Simon Goldschmidt
651 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
654 2011-02-17: Simon Goldschmidt
655 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
657 2011-01-24: Simon Goldschmidt
658 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
660 2010-12-02: Simon Goldschmidt
661 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
663 2010-11-23: Simon Goldschmidt
664 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
665 LWIP_SO_RCVBUF and ioctl/FIONREAD.
667 2010-11-23: Simon Goldschmidt
668 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
669 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
671 2010-11-23: Simon Goldschmidt
672 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
673 refusing 'refused_data' again.
675 2010-11-22: Simon Goldschmidt
676 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
677 after a successful nonblocking connection.
679 2010-11-22: Simon Goldschmidt
680 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
681 must be sent link-local
683 2010-11-22: Simon Goldschmidt
684 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
687 2010-11-20: Simon Goldschmidt
688 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
690 2010-11-20: Simon Goldschmidt
691 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
692 resemble other stacks.
694 2010-11-20: Simon Goldschmidt
695 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
696 no-copy TCP writes will never succeed.
698 2010-11-20: Simon Goldschmidt
699 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
700 not match documentation: return ERR_ARG instead of ERR_VAL if not
701 initialized or wrong argument.
703 2010-10-20: Simon Goldschmidt
704 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
706 2010-10-05: Simon Goldschmidt
707 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
708 replugging the network cable after an AutoIP address was assigned.
710 2010-08-10: Simon Goldschmidt
711 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
713 2010-08-03: Simon Goldschmidt
714 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
716 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
717 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
718 endian architectures)
720 2010-07-28: Simon Goldschmidt
721 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
724 2010-07-27: Simon Goldschmidt
725 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
726 harm but never did anything
728 2010-07-21: Simon Goldschmidt
729 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
732 2010-07-16: Kieran Mansley
733 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
735 2010-07-10: Simon Goldschmidt
736 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
738 2010-06-30: Simon Goldschmidt
739 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
742 2010-06-28: Kieran Mansley
743 * timers.c remove unportable printing of C function pointers
745 2010-06-24: Simon Goldschmidt
746 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
747 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
749 2010-06-24: Simon Goldschmidt
750 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
751 implemented shutdown at socket level.
753 2010-06-21: Simon Goldschmidt
754 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
755 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
756 custom pbufs that reference other (original) pbufs. Additionally set
757 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
759 2010-06-15: Simon Goldschmidt
760 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
762 2010-06-14: Simon Goldschmidt
763 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
765 2010-06-12: Simon Goldschmidt
766 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
769 2010-05-17: Simon Goldschmidt
770 * netdb.c: Correctly NULL-terminate h_addr_list
772 2010-05-16: Simon Goldschmidt
773 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
774 "symbol already defined" i.e. when linking to winsock
776 2010-05-05: Simon Goldschmidt
777 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
780 2010-04-21: Simon Goldschmidt
781 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
784 2010-03-28: Luca Ceresoli
785 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
787 2010-03-27: Luca Ceresoli
788 * mib2.c: patch #7130: remove meaningless const qualifiers
790 2010-03-26: Simon Goldschmidt
791 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
793 2010-03-26: Simon Goldschmidt
794 * various files: Fixed compiling with different options disabled (TCP/UDP),
795 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
797 2010-03-25: Simon Goldschmidt
798 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
800 2010-03-25: Simon Goldschmidt
801 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
802 overrunning our rcv_wnd in ooseq case.
804 2010-03-22: Simon Goldschmidt
805 * tcp.c: tcp_listen() did not copy the pcb's prio.
807 2010-03-19: Simon Goldschmidt
808 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
810 2010-03-14: Simon Goldschmidt
811 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
812 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
813 and basing PBUF_LINK_HLEN on it.
815 2010-03-08: Simon Goldschmidt
816 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
817 when assiging routable address): when checking incoming packets and
818 aborting existing connection on address change, filter out link-local
821 2010-03-06: Simon Goldschmidt
822 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
824 2010-03-06: Simon Goldschmidt
825 * ipv4/ip.c: Don't try to forward link-local addresses
827 2010-03-06: Simon Goldschmidt
828 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
831 2010-03-05: Simon Goldschmidt
832 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
835 2010-03-05: Simon Goldschmidt
836 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
837 into multiple calls to tcp_write.
839 2010-02-21: Simon Goldschmidt
840 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
841 the implementation of DNS_USES_STATIC_BUF==1)
843 2010-02-20: Simon Goldschmidt
844 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
845 close() vs. shutdown(). Now the application does not get any more
846 recv callbacks after calling tcp_close(). Added tcp_shutdown().
848 2010-02-19: Simon Goldschmidt
849 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
850 confusion with realloc()
852 2010-02-15: Simon Goldschmidt/Stephane Lesage
853 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
856 2010-02-14: Simon Goldschmidt
857 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
858 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
859 admin-status of a netif are up
861 2010-02-14: Simon Goldschmidt
862 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
863 reception and is not really necessary
865 2010-02-14: Simon Goldschmidt
866 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
867 request was directed as us (RFC 826, Packet Reception), otherwise
868 only update existing entries; internalized some functions
870 2010-02-14: Simon Goldschmidt
871 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
872 disabled on netif used for PPPoE) by adding a new netif flag
873 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
874 device but prevents usage of ARP (so that ethernet_input can be used
877 2010-02-12: Simon Goldschmidt
878 * netif.c: netif_set_link_up/down: only do something if the link state
881 2010-02-12: Simon Goldschmidt/Stephane Lesage
882 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
885 2010-02-12: Simon Goldschmidt
886 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
888 2010-02-09: Simon Goldschmidt
889 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
890 (recv() makes receive window update for data that wasn't received by
893 2010-02-09: Simon Goldschmidt/Stephane Lesage
894 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
895 or any netconn_recv() error)
897 2010-02-09: Simon Goldschmidt
898 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
900 2010-02-09: Simon Goldschmidt
901 * netif.c: For loopback packets, adjust the stats- and snmp-counters
902 for the loopback netif.
904 2010-02-08: Simon Goldschmidt
905 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
906 since they are not used anywhere else.
908 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
909 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
910 (patch from bug #28798)
912 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
913 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
914 another bug when LWIP_RAND() returns zero.
916 2010-02-04: Simon Goldschmidt
917 * nearly every file: Use macros defined in ip_addr.h (some of them new)
918 to work with IP addresses (preparation for bug #27352 - Change ip_addr
919 from struct to typedef (u32_t) - and better code).
921 2010-01-31: Simon Goldschmidt
922 * netif.c: Don't call the link-callback from netif_set_up/down() since
923 this invalidly retriggers DHCP.
925 2010-01-29: Simon Goldschmidt
926 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
927 portability file inet.h and its contents from the stack: moved htonX-
928 functions to def.h (and the new def.c - they are not ipv4 dependent),
929 let inet.h depend on ip_addr.h and not the other way round.
930 This fixes bug #28732.
932 2010-01-28: Kieran Mansley
933 * tcp.c: Ensure ssthresh >= 2*MSS
935 2010-01-27: Simon Goldschmidt
936 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
937 callback can lead to accessing unallocated memory. As a consequence,
938 ERR_ABRT means the application has called tcp_abort()!
940 2010-01-25: Simon Goldschmidt
941 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
942 not implemented in SNMP): write-only or not-accessible are still
943 returned by getnext (though not by get)
945 2010-01-24: Simon Goldschmidt
946 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
947 not use reserved C/C++ keywords
949 2010-01-23: Simon Goldschmidt
950 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
953 2010-01-21: Simon Goldschmidt
954 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
955 if tcp_enqueue fails) both in raw- and netconn-API
957 2010-01-19: Simon Goldschmidt
958 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
960 2010-01-18: Iordan Neshev/Simon Goldschmidt
961 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
962 bugfix backports from 2.4.x.
964 2010-01-18: Simon Goldschmidt
965 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
967 2010-01-17: Simon Goldschmidt
968 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
969 task #10102: "netconn: clean up conn->err threading issues" by adding
970 error return value to struct api_msg_msg
972 2010-01-17: Simon Goldschmidt
973 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
974 to return err_t (bugs #27709 and #28087)
976 2010-01-14: Simon Goldschmidt
977 * ...: Use typedef for function prototypes throughout the stack.
979 2010-01-13: Simon Goldschmidt
980 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
981 window = 0) by correctly draining recvmbox/acceptmbox
983 2010-01-11: Simon Goldschmidt
984 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
985 erroneous callbacks) by copying the code from recent pppd
987 2010-01-10: Simon Goldschmidt
988 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
990 2010-01-10: Simon Goldschmidt
991 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
993 2010-01-08: Simon Goldschmidt
994 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
996 2010-01-08: Simon Goldschmidt
997 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
998 passed to dns_local_addhost() might be volatile
1000 2010-01-07: Simon Goldschmidt
1001 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
1003 2010-01-06: Simon Goldschmidt
1004 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1006 2009-12-31: Simon Goldschmidt
1007 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1008 structure to easily compare our code against the pppd code (around v2.3.1)
1010 2009-12-27: Simon Goldschmidt
1011 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1019 2009-10-27 Simon Goldschmidt/Stephan Lesage
1020 * netifapi.c/.h: Added netifapi_netif_set_addr()
1022 2009-10-07 Simon Goldschmidt/Fabian Koch
1023 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1024 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1026 2009-08-26 Simon Goldschmidt/Simon Kallweit
1027 * slipif.c/.h: bug #26397: SLIP polling support
1029 2009-08-25 Simon Goldschmidt
1030 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1031 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1033 2009-08-25 Simon Goldschmidt
1034 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1036 2009-08-24 Jakob Stoklund Olesen
1037 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1038 to netif_set_link_up().
1040 2009-08-23 Simon Goldschmidt
1041 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1042 to a human-readable string.
1046 2009-12-24: Kieran Mansley
1047 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1050 2009-12-06: Simon Goldschmidt
1051 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1052 be statically allocated (like in ucip)
1054 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1055 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1057 2009-12-03: Simon Goldschmidt
1058 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1059 could have non-zero length
1061 2009-12-02: Simon Goldschmidt
1062 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1063 tcp_input_pcb until after calling the pcb's callbacks
1065 2009-11-29: Simon Goldschmidt
1066 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1067 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1069 2009-11-29: Simon Goldschmidt
1070 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1071 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1073 2009-11-26: Simon Goldschmidt
1074 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1077 2009-11-26: Simon Goldschmidt
1078 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1079 algorithm at PCB level
1081 2009-11-22: Simon Goldschmidt
1082 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1084 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1085 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1086 reusing time-wait pcb
1088 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1089 * sockets.c: Fixed bug #28062: Data received directly after accepting
1090 does not wake up select
1092 2009-11-11: Simon Goldschmidt
1093 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1095 2009-10-30: Simon Goldschmidt
1096 * opt.h: Increased default value for TCP_MSS to 536, updated default
1097 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1099 2009-10-28: Kieran Mansley
1100 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1101 to follow algorithm from TCP/IP Illustrated
1103 2009-10-27: Kieran Mansley
1104 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1106 2009-10-25: Simon Goldschmidt
1107 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1108 pcb->recv is NULL to keep rcv_wnd correct)
1110 2009-10-25: Simon Goldschmidt
1111 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1113 2009-10-23: Simon Goldschmidt (David Empson)
1114 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1116 2009-10-21: Simon Goldschmidt
1117 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1118 trailing 1 byte len (SYN/FIN)
1120 2009-10-21: Simon Goldschmidt
1121 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1123 2009-10-19: Simon Goldschmidt
1124 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1125 conditional code to assert where applicable), check pbuf length before
1126 testing for valid reply
1128 2009-10-19: Simon Goldschmidt
1129 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1130 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1132 2009-10-16: Simon Goldschmidt
1133 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1134 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1137 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1138 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1140 2009-10-15: Simon Goldschmidt
1141 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1144 2009-10-15: Simon Goldschmidt
1145 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1146 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1147 of network byte order
1149 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1150 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1151 which are not consecutive when retransmitting unacked segments
1153 2009-10-09 Simon Goldschmidt
1154 * opt.h: Fixed default values of some stats to only be enabled if used
1155 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1157 2009-08-30 Simon Goldschmidt
1158 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1159 function" by checking for loopback before calling ip_frag
1161 2009-08-25 Simon Goldschmidt
1162 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1164 2009-08-23 Simon Goldschmidt
1165 * ppp.c: bug #27078: Possible memory leak in pppInit()
1167 2009-08-23 Simon Goldschmidt
1168 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1171 2009-08-23 Simon Goldschmidt
1172 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1173 Fixed wrong parenthesis, added check in init.c
1175 2009-08-23 Simon Goldschmidt
1176 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1178 2009-08-23 Simon Goldschmidt
1179 * many ppp files: bug #27267: Added include to string.h where needed
1181 2009-08-23 Simon Goldschmidt
1182 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1189 2009-05-10 Simon Goldschmidt
1190 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1191 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1192 one pbuf to help MACs that don't support scatter-gather DMA.
1194 2009-05-09 Simon Goldschmidt
1195 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1196 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1198 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1199 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1200 extended info about the currently received packet.
1202 2009-04-27 Simon Goldschmidt
1203 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1205 2009-04-25 Simon Goldschmidt
1206 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1207 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1209 2009-04-21 Simon Goldschmidt
1210 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1211 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1212 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1213 as an external function for lookup.
1215 2009-04-15 Simon Goldschmidt
1216 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1218 2009-03-31 Kieran Mansley
1219 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1220 TCP timestamp options, off by default. Rework tcp_enqueue() to
1221 take option flags rather than specified option data
1223 2009-02-18 Simon Goldschmidt
1224 * cc.h: Added printf formatter for size_t: SZT_F
1226 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1227 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1230 2009-02-12 Simon Goldschmidt
1231 * init.h: Added LWIP_VERSION to get the current version of the stack
1233 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1234 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1235 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1238 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1239 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1240 is only used by UDPLITE at present, so conditionalise it.
1242 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1243 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1244 "seed" address. This should reduce AUTOIP conflicts if
1245 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1247 2008-10-02 Jonathan Larmour and Rishi Khan
1248 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1251 2008-06-30 Simon Goldschmidt
1252 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1253 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1254 mem_free to run between mem_malloc iterations. Added illegal counter for
1257 2008-06-27 Simon Goldschmidt
1258 * stats.h/.c, some other files: patch #6483: stats module improvement:
1259 Added defines to display each module's statistic individually, added stats
1260 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1262 2008-06-17 Simon Goldschmidt
1263 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1264 (define LWIP_ERR_T in cc.h)
1266 2008-06-17 Simon Goldschmidt
1267 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1270 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1271 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1272 modified version of patch # 6370: Moved loopif code to netif.c so that
1273 loopback traffic is supported on all netifs (all local IPs).
1274 Added option to limit loopback packets for each netifs.
1278 2009-08-12 Kieran Mansley
1279 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1280 out of window or out of order properly
1282 2009-08-12 Kieran Mansley
1283 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1285 2009-07-28 Simon Goldschmidt
1286 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1288 2009-07-27 Kieran Mansley
1289 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1291 2009-07-09 Kieran Mansley
1292 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1293 recv_avail and don't increment counters until message successfully
1296 2009-06-25 Kieran Mansley
1297 * api_msg.c api.h: BUG26722: initialise netconn write variables
1300 2009-06-25 Kieran Mansley
1301 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1303 2009-06-25 Kieran Mansley
1304 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1305 simultaneous close behaviour, and make snd_nxt have the same meaning
1308 2009-05-12 Simon Goldschmidt
1309 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1310 arp_table / uses etharp_query" by adding etharp_gratuitous()
1312 2009-05-12 Simon Goldschmidt
1313 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1314 to the IP header (used by igmp_ip_output_if)
1316 2009-05-06 Simon Goldschmidt
1317 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1318 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1320 2009-05-05 Simon Goldschmidt
1321 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1324 2009-05-04 Simon Goldschmidt
1325 * init.c: snmp was not initialized in lwip_init()
1327 2009-05-04 Frédéric Bernon
1328 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1330 2009-05-03 Simon Goldschmidt
1331 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1332 (and unsent->next == NULL)
1334 2009-05-02 Simon Goldschmidt
1335 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1336 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1338 2009-05-02 Simon Goldschmidt
1339 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1341 2009-05-01 Simon Goldschmidt
1342 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1344 2009-05-01 Simon Goldschmidt
1345 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1347 2009-04-29 Frédéric Bernon
1348 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1349 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1350 of broadcast packets even when this option wasn't set. Port maintainers
1351 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1352 If you want this option also filter broadcast on recv operations, you also
1353 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1355 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1356 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1357 DHCP/AUTOIP cooperation
1359 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1360 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1361 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1362 right place in tcp_output and tcp_rexmit).
1364 2009-04-25 Simon Goldschmidt
1365 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1366 when debugging": memp_sizes contained the wrong sizes (including sanity
1367 regions); memp pools for MEM_USE_POOLS were too small
1369 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1370 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1371 behavior, with with ip address string not ended by a '\0', a space or a
1374 2009-04-19 Simon Goldschmidt
1375 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1376 pcb->err is called, not pcb->connected (with an error code).
1378 2009-04-19 Simon Goldschmidt
1379 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1380 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1382 2009-04-19 Simon Goldschmidt
1383 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1384 in the header pbuf, not the data pbuf)
1386 2009-04-18 Simon Goldschmidt
1387 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1389 2009-04-15 Simon Goldschmidt
1390 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1392 2009-04-15 Simon Goldschmidt
1393 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1395 2009-04-15 Simon Goldschmidt
1396 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1397 ip_hinted_output() (for smaller code mainly)
1399 2009-04-15 Simon Goldschmidt
1400 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1402 2009-04-15 Simon Goldschmidt
1403 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1404 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1405 is big enough in dhcp_start
1407 2009-04-15 Simon Goldschmidt
1408 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1410 2009-04-15 Simon Goldschmidt
1411 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1413 2009-04-15 Simon Goldschmidt
1414 * sockets.c: bug #26121: set_errno can be overridden
1416 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1417 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1420 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1421 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1424 2009-03-31 Kieran Mansley
1425 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1426 updates are calculated and sent (BUG20515)
1428 * tcp_in.c: cope with SYN packets received during established states,
1429 and retransmission of initial SYN.
1431 * tcp_out.c: set push bit correctly when tcp segments are merged
1433 2009-03-27 Kieran Mansley
1434 * tcp_out.c set window correctly on probes (correcting change made
1437 2009-03-26 Kieran Mansley
1438 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1439 connections where no reset required (bug #25622)
1441 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1444 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1445 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1446 too small depending on MEM_ALIGNMENT
1448 2009-02-16 Simon Goldschmidt
1449 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1450 converted size argument of netconn_write to 'size_t'
1452 2009-02-16 Simon Goldschmidt
1453 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1454 by moving accept callback function pointer to TCP_PCB_COMMON
1456 2009-02-12 Simon Goldschmidt
1457 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1460 2009-02-11 Simon Goldschmidt
1461 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1463 2009-02-11 Simon Goldschmidt
1464 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1465 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1467 2009-02-10 Simon Goldschmidt
1468 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1469 Accepts_pending is decrease on a corresponding listen pcb when a connection
1470 in state SYN_RCVD is close.
1472 2009-01-28 Jonathan Larmour
1473 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1476 2008-12-19 Simon Goldschmidt
1477 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1479 2008-12-10 Tamas Somogyi, Frédéric Bernon
1480 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1481 port uses deleted netbuf.
1483 2008-10-18 Simon Goldschmidt
1484 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1487 2008-10-15 Simon Goldschmidt
1488 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1489 by packing the struct ip_reass_helper.
1491 2008-10-03 David Woodhouse, Jonathan Larmour
1492 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1494 2008-10-02 Jonathan Larmour
1495 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1496 padding is included.
1498 2008-09-30 Jonathan Larmour
1499 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1500 assertion check that addrlen isn't NULL.
1502 2008-09-30 Jonathan Larmour
1503 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1505 2008-08-26 Simon Goldschmidt
1506 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1507 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1509 2008-08-14 Simon Goldschmidt
1510 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1511 tcp_close returns != ERR_OK)
1513 2008-07-08 Frédéric Bernon
1514 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1515 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1517 2008-06-24 Jonathan Larmour
1518 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1519 if tcp_seg_copy fails.
1521 2008-06-17 Simon Goldschmidt
1522 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1523 and created defines for swapping bytes and folding u32 to u16.
1525 2008-05-30 Kieran Mansley
1526 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1527 rather than rcv_ann_wnd when deciding if packets are in-window.
1528 Contributed by <arasmussen@consultant.datasys.swri.edu>
1530 2008-05-30 Kieran Mansley
1531 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1532 passing as function pointers when MEM_LIBC_MALLOC is defined.
1534 2008-05-09 Jonathan Larmour
1535 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1536 stop it being treated as a fatal error.
1538 2008-04-15 Simon Goldschmidt
1539 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1542 2008-03-27 Simon Goldschmidt
1543 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1544 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1545 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1546 or heap memory from interrupt context
1548 2008-03-26 Simon Goldschmidt
1549 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1550 host sent a zero mss as TCP option.
1557 2008-03-10 Jonathan Larmour
1558 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1559 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1561 2008-01-22 Frédéric Bernon
1562 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1563 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1565 2008-01-14 Frédéric Bernon
1566 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1567 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1568 tcp_recv callback (see rawapi.txt).
1570 2008-01-14 Frédéric Bernon, Marc Chaland
1571 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1573 2008-01-12 Frédéric Bernon
1574 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1575 netconn::sem per netconn::op_completed like suggested for the task #7490
1576 "Add return value to sys_mbox_post".
1578 2008-01-12 Frédéric Bernon
1579 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1580 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1581 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1583 2008-01-10 Frédéric Bernon
1584 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1585 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1586 "blocking" ("block" parameter = 1).
1588 2008-01-10 Frédéric Bernon
1589 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1590 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1591 "Add return value to sys_mbox_post".
1593 2008-01-05 Frédéric Bernon
1594 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1595 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1596 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1597 indicate the number of pointers query by the mailbox. There is three defines
1598 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1599 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1600 parameter in your implementation, but to ignore it to keep the previous behavior.
1601 The new sys_mbox_trypost function return a value to know if the mailbox is
1602 full or if the message is posted. Take a look to sys_arch.txt for more details.
1603 This new function is used in tcpip_input (so, can be called in an interrupt
1604 context since the function is not blocking), and in recv_udp and recv_raw.
1606 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1607 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1608 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1609 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1610 documentation in the rawapi.txt file.
1612 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1613 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1615 2007-12-31 Frédéric Bernon, Luca Ceresoli
1616 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1617 in autoip". The change in etharp_raw could be removed, since all calls to
1618 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1619 wrong in the future.
1621 2007-12-30 Frédéric Bernon, Tom Evans
1622 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1623 Filtering" reported by Tom Evans.
1625 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1626 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1627 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1628 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1629 keep accepting new connections.
1631 2007-12-13 Frédéric Bernon
1632 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1633 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1635 2007-12-12 Frédéric Bernon
1636 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1637 are the one which have ram usage.
1639 2007-12-05 Frédéric Bernon
1640 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1641 set of variables (=0) or a local one (=1). In this last case, your port should
1642 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1643 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1645 2007-12-03 Simon Goldschmidt
1646 * ip.c: ip_input: check if a packet is for inp first before checking all other
1647 netifs on netif_list (speeds up packet receiving in most cases)
1649 2007-11-30 Simon Goldschmidt
1650 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1651 UDP: move a (connected) pcb selected for input to the front of the list of
1652 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1655 2007-11-28 Simon Goldschmidt
1656 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1658 2007-11-25 Simon Goldschmidt
1659 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1662 2007-11-24 Simon Goldschmidt
1663 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1664 to the new file netdb.c; included lwip_getaddrinfo.
1666 2007-11-21 Simon Goldschmidt
1667 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1668 based on the MTU of the netif used to send. Enabled by default. Disable by
1669 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1671 2007-11-19 Frédéric Bernon
1672 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1673 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1674 copy dns payload to parse the response), return an error if there is no place
1675 for a new query, and fix some minor problems.
1677 2007-11-16 Simon Goldschmidt
1678 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1679 removed files: core/inet.c, core/inet6.c
1680 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1681 inet and chksum part; changed includes in all lwIP files as appropriate
1683 2007-11-16 Simon Goldschmidt
1684 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1685 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1686 (gethostbyname/gethostbyname_r).
1688 2007-11-15 Jim Pettinato, Frédéric Bernon
1689 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1690 requests with RAW api interface. Initialization is done in lwip_init() with
1691 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1692 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1693 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1694 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1695 list with points to improve.
1697 2007-11-06 Simon Goldschmidt
1698 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1699 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1700 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1702 2007-11-06 Simon Goldschmidt
1703 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1704 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1705 implementation from netconn api applications.
1707 2007-11-03 Frédéric Bernon
1708 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1709 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1710 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1711 it. This is a first release which have to be improve for TCP. Note it used the
1712 netconn::recv_avail which need to be more "thread-safe" (note there is already
1713 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1715 2007-11-01 Frédéric Bernon, Marc Chaland
1716 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1717 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1718 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1719 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1720 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1722 2007-10-24 Frédéric Bernon
1723 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1724 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1725 some code (like we have talk in "patch #5919 : Create compile switch to remove
1726 select code"), but it could be done later.
1728 2007-10-08 Simon Goldschmidt
1729 * many files: Changed initialization: many init functions are not needed any
1730 more since we now rely on the compiler initializing global and static
1733 2007-10-06 Simon Goldschmidt
1734 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1735 to enqueue the received pbufs so that multiple packets can be reassembled
1736 simultaneously and no static reassembly buffer is needed.
1738 2007-10-05 Simon Goldschmidt
1739 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1740 all netifs (or ports) can use it.
1742 2007-10-05 Frédéric Bernon
1743 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1744 common function to reduce a little bit the footprint (for all functions using
1745 only the "netif" parameter).
1747 2007-10-03 Frédéric Bernon
1748 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1749 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1750 a little bit the footprint (for all functions using only the "netif" parameter).
1752 2007-09-15 Frédéric Bernon
1753 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1754 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1755 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1756 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1758 2007-09-10 Frédéric Bernon
1759 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1760 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1761 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1762 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1763 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1764 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1765 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1766 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1767 when it's queried (any direct call to "sysuptime" is changed by a call to
1768 snmp_get_sysuptime).
1770 2007-09-09 Frédéric Bernon, Bill Florac
1771 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1772 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1773 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1774 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1775 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1776 the next query message to receive the matching multicast streams).
1778 2007-09-08 Frédéric Bernon
1779 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1780 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1781 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1782 Enable to access to these fields with LWIP_TCP=0.
1784 2007-09-05 Frédéric Bernon
1785 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1786 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1787 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1788 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1789 help to reduce footprint, and to reduce "visibility" on the Internet.
1791 2007-09-05 Frédéric Bernon, Bill Florac
1792 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1793 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1794 parameters have to be provided: a task name, and a task stack size. For this
1795 one, since it's platform dependant, you could define the best one for you in
1796 your lwipopts.h. For port maintainers, you can just add these new parameters
1797 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1800 2007-09-05 Frédéric Bernon
1801 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1802 inside init.c for task #7142 "Sanity check user-configurable values".
1804 2007-09-04 Frédéric Bernon, Bill Florac
1805 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1806 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1807 value). It will avoid potential fragmentation problems, use a counter to know
1808 how many times a group is used on an netif, and free it when all applications
1809 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1810 check if LWIP_IGMP!=0).
1812 2007-09-03 Frédéric Bernon
1813 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1814 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1815 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1816 and/or the "interface" field (for netconn layer), for join/leave operations.
1817 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1818 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1820 2007-08-30 Frédéric Bernon
1821 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1822 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1823 with other API (application based on raw API, or future "socket2" API). Ports
1824 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1826 2007-08-30 Frédéric Bernon, Jonathan Larmour
1827 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1828 user-configurable values".
1830 2007-08-29 Frédéric Bernon
1831 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1832 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1833 spirit than the others modules. Modify some IGMP debug traces.
1835 2007-08-29 Frédéric Bernon
1836 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1837 Add lwip_init function to regroup all modules initializations, and to provide
1838 a place to add code for task #7142 "Sanity check user-configurable values".
1839 Ports maintainers should remove direct initializations calls from their code,
1840 and add init.c in their makefiles. Note that lwip_init() function is called
1841 inside tcpip_init, but can also be used by raw api users since all calls are
1842 disabled when matching options are disabled. Also note that their is new options
1843 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1845 2007-08-26 Marc Boucher
1846 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1847 since they can under certain circumstances be called with an invalid conn
1848 pointer after the connection has been closed (and conn has been freed).
1850 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1851 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1852 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1854 2007-08-22 Frédéric Bernon
1855 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1856 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1858 2007-08-22 Frédéric Bernon
1859 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1860 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1861 name is tcpip_input (we keep the name of 1.2.0 function).
1863 2007-08-17 Jared Grubb
1864 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1865 settings into new memp_std.h and optional user file lwippools.h. This adds
1866 more dynamic mempools, and allows the user to create an arbitrary number of
1867 mempools for mem_malloc.
1869 2007-08-16 Marc Boucher
1870 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1871 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1872 close the connection.
1874 2007-08-16 Marc Boucher
1875 * sockets.c: lwip_accept(): check netconn_peer() error return.
1877 2007-08-16 Marc Boucher
1878 * mem.c, mem.h: Added mem_calloc().
1880 2007-08-16 Marc Boucher
1881 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1882 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1883 and starving other message types.
1884 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1886 2007-08-16 Marc Boucher
1887 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1888 type and flgs (later renamed to flags).
1889 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1890 Improved lwip_recvfrom(). TCP push now propagated.
1892 2007-08-16 Marc Boucher
1893 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1896 2007-08-16 Marc Boucher
1897 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1898 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1899 Added PPPoE support and various PPP improvements.
1901 2007-07-25 Simon Goldschmidt
1902 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1903 making netbuf_copy_partial use this function.
1905 2007-07-25 Simon Goldschmidt
1906 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1907 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1910 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1911 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1912 a link callback in the netif struct, and functions to handle it. Be carefull
1913 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1914 if you want to be sure to be compatible with future changes...
1916 2007-06-30 Frédéric Bernon
1917 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1919 2007-06-21 Simon Goldschmidt
1920 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1921 LWIP_AUTOIP =0 and =1 to remove redundant code.
1923 2007-06-21 Simon Goldschmidt
1924 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1925 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1926 heap. This both prevents memory fragmentation and gives a higher speed
1927 at the cost of more memory consumption. Turned off by default.
1929 2007-06-21 Simon Goldschmidt
1930 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1931 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1932 int to be able to send a bigger buffer than 64K with one time (mainly
1933 used from lwip_send).
1935 2007-06-21 Simon Goldschmidt
1936 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1937 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1939 2007-06-21 Simon Goldschmidt
1940 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1941 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1942 changes on low memory or empty send-buffer.
1944 2007-06-18 Simon Goldschmidt
1945 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1946 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1947 used for ethernet and struct eth_addr already had a defined length of 6).
1949 2007-06-17 Simon Goldschmidt
1950 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1951 to disable UDP checksum generation on transmit.
1953 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1954 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1955 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1956 this macro to check "conn" parameter in api_msg.c functions.
1958 2007-06-11 Simon Goldschmidt
1959 * sockets.c, sockets.h: Added UDP lite support for sockets
1961 2007-06-10 Simon Goldschmidt
1962 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1963 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1966 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1967 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1968 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1969 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1970 (see TODO mark in the source code).
1972 2007-06-09 Simon Goldschmidt
1973 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1974 etharp_output() to match netif->output so etharp_output() can be used
1975 directly as netif->output to save one function call.
1977 2007-06-08 Simon Goldschmidt
1978 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1979 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1980 added initialization of those to ethernetif, slipif and loopif.
1982 2007-05-18 Simon Goldschmidt
1983 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1984 (defaulting to off for now) that can be set to 0 to send fragmented
1985 packets by passing PBUF_REFs down the stack.
1987 2007-05-23 Frédéric Bernon
1988 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1989 connections, such present in patch #5959.
1991 2007-05-23 Frédéric Bernon
1992 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1993 code in only one part...
1995 2007-05-18 Simon Goldschmidt
1996 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1997 elements to overflow. This is achieved by adding some bytes before and after
1998 each pool element (increasing their size, of course), filling them with a
1999 prominent value and checking them on freeing the element.
2000 Set it to 2 to also check every element in every pool each time memp_malloc()
2001 or memp_free() is called (slower but more helpful).
2003 2007-05-10 Simon Goldschmidt
2004 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
2005 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2008 2007-05-11 Frédéric Bernon
2009 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2010 Include a function pointer instead of a table index in the message to reduce
2011 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2012 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2014 2007-05-10 Simon Goldschmidt
2015 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2016 \ extern "C" {' in all header files. Now you can write your application using
2017 the lwIP stack in C++ and simply #include the core files. Note I have left
2018 out the netif/ppp/*h header files for now, since I don't know which files are
2019 included by applications and which are for internal use only.
2021 2007-05-09 Simon Goldschmidt
2022 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2023 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2024 situations where some compilers might inline the copy and save a function
2025 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2027 2007-05-08 Simon Goldschmidt
2028 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2029 to be overriden in case the C-library malloc implementation is not protected
2030 against concurrent access.
2032 2007-05-04 Simon Goldschmidt (Atte Kojo)
2033 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2034 multiple packets to the same host.
2036 2007-05-04 Frédéric Bernon, Jonathan Larmour
2037 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2038 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2039 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2040 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2041 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2042 these fields are now renamed "addr" & "port".
2044 2007-04-11 Jonathan Larmour
2045 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2046 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2047 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2048 by the port in sys_arch.h if desired.
2050 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2051 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2052 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2053 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2055 2007-04-05 Frédéric Bernon
2056 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2058 2007-04-04 Simon Goldschmidt
2059 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2060 use this for and architecture-independent form to tell the compiler you intentionally
2061 are not using this variable. Can be overriden in cc.h.
2063 2007-03-28 Frédéric Bernon
2064 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2065 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2066 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2067 It will be used by DHCP to register a client hostname, but can also be use when you call
2070 2007-03-28 Frédéric Bernon
2071 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2072 initialize a network interface's flag with. It tell this interface is an ethernet
2073 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2074 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2076 2007-03-26 Frédéric Bernon, Jonathan Larmour
2077 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2078 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2079 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2080 is done in tcpip_init function.
2082 2007-03-22 Frédéric Bernon
2083 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2084 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2085 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2086 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2087 but never used. Fix msg_in.c with the correct #if test for a stat display.
2089 2007-03-21 Kieran Mansley
2090 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2091 Provides callback on netif up/down state change.
2093 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2094 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2095 ip.c, netif.h, tcpip.c, opt.h:
2096 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2097 filter per all network interfaces. Declare a new function in netif to enable to
2098 control the MAC filter (to reduce lwIP traffic processing).
2100 2007-03-11 Frédéric Bernon
2101 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2102 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2103 unless you know what you're doing (default are RFC1122 compliant). Note
2104 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2106 2007-03-08 Frédéric Bernon
2107 * tcp.h: Keepalive values can be configured at compile time, but don't change
2108 this unless you know what you're doing (default are RFC1122 compliant).
2110 2007-03-08 Frédéric Bernon
2111 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2112 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2113 on UDP sockets/netconn.
2115 2007-03-08 Simon Goldschmidt
2116 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2118 2007-03-06 Frédéric Bernon
2119 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2120 Implement SO_RCVTIMEO on UDP sockets/netconn.
2122 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2123 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2124 on the stack and remove the API msg type from memp
2126 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2127 * sockets.h, sockets.c: Move socket initialization to new
2128 lwip_socket_init() function.
2129 NOTE: this changes the API with ports. Ports will have to be
2130 updated to call lwip_socket_init() now.
2132 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2133 * api_lib.c: Use memcpy in netbuf_copy_partial.
2138 2008-03-17 Frédéric Bernon, Ed Kerekes
2139 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2140 some problems to fill the IP header on some targets, use now the
2141 ip.h macros to do it).
2143 2008-03-13 Frédéric Bernon
2144 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2145 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2146 TCP connection caused a crash. Note that using (lwip_)recvfrom
2147 like this is a bit slow and that using (lwip)getpeername is the
2148 good lwip way to do it (so, using recv is faster on tcp sockets).
2150 2008-03-12 Frédéric Bernon, Jonathan Larmour
2151 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2152 recv_raw() does not consume data", and the ping sample (with
2153 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2154 returned the IP payload, without the IP header).
2156 2008-03-04 Jonathan Larmour
2157 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2158 and/or warnings on some systems where mem_size_t and size_t differ.
2159 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2161 2008-03-04 Kieran Mansley (contributions by others)
2162 * Numerous small compiler error/warning fixes from contributions to
2163 mailing list after 1.3.0 release candidate made.
2165 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2166 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2168 2008-01-15 Kieran Mansley
2169 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2170 prevented from sending by a small send window, not just a zero
2173 2008-01-09 Jonathan Larmour
2174 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2175 conflict with Linux system headers.
2177 2008-01-06 Jonathan Larmour
2178 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2179 address entirely on receiving a DHCPNAK, and restarting discovery.
2181 2007-12-21 Simon Goldschmidt
2182 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2183 is not protected" by using new macros for interlocked access to modify/test
2184 netconn->recv_avail.
2186 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2187 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2189 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2190 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2191 of silly window avoidance and prevent lwIP from shrinking the window)
2193 2007-12-04 Simon Goldschmidt
2194 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2195 data packet was lost): add assert that all segment lists are empty in
2196 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2197 state from LAST_ACK in tcp_process
2199 2007-12-02 Simon Goldschmidt
2200 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2201 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2202 has to be set to 0 in lwipopts.h
2204 2007-12-02 Simon Goldschmidt
2205 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2206 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2207 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2208 This is a fix for thread-safety and allocates all items needed for a netconn
2209 when the netconn is created.
2211 2007-11-30 Simon Goldschmidt
2212 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2213 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2214 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2215 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2217 2007-11-27 Simon Goldschmidt
2218 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2219 letting ip_route only use netifs that are up.
2221 2007-11-27 Simon Goldschmidt
2222 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2223 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2224 sockets block most operations once they have seen a fatal error.
2226 2007-11-27 Simon Goldschmidt
2227 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2228 netif to send as an argument (to be able to send on netifs that are down).
2230 2007-11-26 Simon Goldschmidt
2231 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2234 2007-11-21 Simon Goldschmidt
2235 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2236 Fixed the nagle algorithm; nagle now also works for all raw API applications
2237 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2239 2007-11-12 Frédéric Bernon
2240 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2241 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2242 context in do_getaddr.
2244 2007-11-10 Simon Goldschmidt
2245 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2246 happen any time). Now the packet simply isn't enqueued when out of memory.
2248 2007-11-01 Simon Goldschmidt
2249 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2250 TCP_MSS if that is smaller) as long as no MSS option is received from the
2253 2007-11-01 Simon Goldschmidt
2254 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2255 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2256 sending our configured TCP_MSS instead of the one received).
2258 2007-11-01 Simon Goldschmidt
2259 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2260 calculated based on the configured TCP_MSS, not on the MSS option received
2263 2007-10-09 Simon Goldschmidt
2264 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2265 short and also was generated wrong if checksum coverage != tot_len;
2266 receive: checksum was calculated wrong if checksum coverage != tot_len
2268 2007-10-08 Simon Goldschmidt
2269 * mem.c: lfree was not updated in mem_realloc!
2271 2007-10-07 Frédéric Bernon
2272 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2273 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2274 this change cause an API breakage for netconn_addr, since a parameter
2275 type change. Any compiler should cause an error without any changes in
2276 yours netconn_peer calls (so, it can't be a "silent change"). It also
2277 reduce a little bit the footprint for socket layer (lwip_getpeername &
2278 lwip_getsockname use now a common lwip_getaddrname function since
2279 netconn_peer & netconn_addr have the same parameters).
2281 2007-09-20 Simon Goldschmidt
2282 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2283 by checking tcp_tw_pcbs also
2285 2007-09-19 Simon Goldschmidt
2286 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2288 2007-09-15 Mike Kleshov
2289 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2291 2007-09-06 Frédéric Bernon
2292 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2293 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2294 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2295 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2297 2007-08-30 Frédéric Bernon
2298 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2299 and fix some coding style.
2301 2007-08-28 Frédéric Bernon
2302 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2303 kind of packets. These packets are considered like Ethernet packets (payload
2304 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2305 are considered like IP packets (payload pointing to iphdr).
2307 2007-08-27 Frédéric Bernon
2308 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2309 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2310 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2312 2007-08-24 Kieran Mansley
2313 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2314 compiler (Paradigm C++)
2316 2007-08-09 Frédéric Bernon, Bill Florac
2317 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2318 Introduce IGMP_STATS to centralize statistics management.
2320 2007-08-09 Frédéric Bernon, Bill Florac
2321 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2322 packet on a udp pcb binded on an netif's IP address, and not on "any".
2324 2007-08-09 Frédéric Bernon, Bill Florac
2325 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2326 This is mainly on using lookup/lookfor, and some coding styles...
2328 2007-07-26 Frédéric Bernon (and "thedoctor")
2329 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2331 2007-07-25 Simon Goldschmidt
2332 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2333 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2334 (tcp_output is called again later from tcp timers).
2336 2007-07-25 Simon Goldschmidt
2337 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2338 copy_from_pbuf, which illegally modified the given pbuf.
2340 2007-07-25 Simon Goldschmidt
2341 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2342 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2344 2007-07-24 Simon Goldschmidt
2345 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2346 correct state (must be CLOSED).
2348 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2349 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2350 allocation. It now returns NULL.
2352 2007-07-13 Frédéric Bernon
2353 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2356 2007-07-13 Frédéric Bernon
2357 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2358 because current code doesn't follow rawapi.txt documentation.
2360 2007-07-13 Kieran Mansley
2361 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2362 out of sequence processing of received packets
2364 2007-07-03 Simon Goldschmidt
2365 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2366 assumption is made that this pbuf is in one piece (i.e. not chained). These
2367 assumptions clash with the possibility of converting to fully pool-based
2368 pbuf implementations, where PBUF_RAM pbufs might be chained.
2370 2007-07-03 Simon Goldschmidt
2371 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2372 when closing tcp netconns: removed conn->sem, less context switches when
2373 closing, both netconn_close and netconn_delete should safely close tcp
2376 2007-07-02 Simon Goldschmidt
2377 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2378 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2379 to cache ARP table indices with each pcb instead of single-entry cache for
2382 2007-07-02 Simon Goldschmidt
2383 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2384 warnings when assigning to smaller types.
2386 2007-06-28 Simon Goldschmidt
2387 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2389 2007-06-28 Simon Goldschmidt
2390 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2391 a segment contained chained pbufs)
2393 2007-06-28 Frédéric Bernon
2394 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2395 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2396 possible to define this macro in your own lwipopts.h to always use C library's
2397 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2399 2007-06-28 Frédéric Bernon
2400 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2401 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2402 in api_lib/api_msg (use pointers and not type with table, etc...)
2404 2007-06-26 Simon Goldschmidt
2405 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2407 2007-06-25 Simon Goldschmidt
2408 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2409 for udp packets with no matching pcb.
2411 2007-06-25 Simon Goldschmidt
2412 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2413 could get udp input packets if the remote side matched.
2415 2007-06-13 Simon Goldschmidt
2416 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2417 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2419 2007-06-13 Simon Goldschmidt
2420 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2421 -> netconn_new_..() does not allocate a new connection for unsupported
2424 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2425 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2426 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2428 2007-06-13 Frédéric Bernon, Matthias Weisser
2429 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2430 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2431 some macro names collision with some OS macros.
2433 2007-06-11 Simon Goldschmidt
2434 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2435 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2436 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2439 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2440 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2441 where TCP flags wasn't initialized in tcp_keepalive.
2443 2007-06-03 Simon Goldschmidt
2444 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2445 registered, p->payload was modified without modifying p->len if sending
2446 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2448 2007-06-03 Simon Goldschmidt
2449 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2450 re-used the input pbuf even if that didn't have enough space to include the
2451 link headers. Now the space is tested and a new pbuf is allocated for the
2452 echo response packet if the echo request pbuf isn't big enough.
2454 2007-06-01 Simon Goldschmidt
2455 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2457 2007-05-23 Frédéric Bernon
2458 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2459 allocated by do_listen if success) and netconn_accept errors handling. In
2460 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2461 by ASSERT, except for netconn_delete.
2463 2007-05-23 Frédéric Bernon
2464 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2465 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2466 directly close the recvmbox).
2468 2007-05-22 Simon Goldschmidt
2469 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2470 bound but unconnected (and non-listening) tcp_pcbs.
2472 2007-05-22 Frédéric Bernon
2473 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2474 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2475 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2476 like "sys_timeout" in their application threads.
2478 2007-05-22 Frédéric Bernon
2479 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2480 which parameters are used by which do_xxx function, and to avoid "misusing"
2481 parameters (patch #5938).
2483 2007-05-22 Simon Goldschmidt
2484 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2485 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2486 is only 8 bits wide. This affects the api, as there, the protocol was
2489 2007-05-18 Simon Goldschmidt
2490 * memp.c: addition to patch #5913: smaller pointer was returned but
2491 memp_memory was the same size -> did not save memory.
2493 2007-05-16 Simon Goldschmidt
2494 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2497 2007-05-16 Simon Goldschmidt
2498 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2499 as the one of the netif used for sending to prevent sending from old
2500 addresses after a netif address gets changed (partly fixes bug #3168).
2502 2007-05-16 Frédéric Bernon
2503 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2504 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2505 tcpip_init) because we have to be sure that network interfaces are already
2506 added (mac filter is updated only in igmp_init for the moment).
2508 2007-05-16 Simon Goldschmidt
2509 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2510 into sys_arch_sem_wait calls to prevent timers from running while waiting
2511 for the heap. This fixes bug #19167.
2513 2007-05-13 Simon Goldschmidt
2514 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2515 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2518 2007-05-07 Simon Goldschmidt
2519 * mem.c: Another attempt to fix bug #17922.
2521 2007-05-04 Simon Goldschmidt
2522 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2523 implementation so that it can be reused (don't allocate the target
2524 pbuf inside pbuf_copy()).
2526 2007-05-04 Simon Goldschmidt
2527 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2528 to save a little RAM (next pointer of memp is not used while not in pool).
2531 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2534 2007-04-23 Simon Goldschmidt
2535 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2536 in NULL reference for incoming TCP packets". Loopif has to be configured
2537 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2538 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2539 putting packets on a list that is fed to the stack by calling loopif_poll()
2540 (single-thread / NO_SYS / polling environment where e.g.
2541 netif->input() = ip_input).
2543 2007-04-17 Jonathan Larmour
2544 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2545 the difference between two u16_t's.
2546 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2547 MEMP_NUM_NETCONN in sockets.c right now.
2549 2007-04-12 Jonathan Larmour
2550 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2552 2007-04-12 Kieran Mansley
2553 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2554 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2556 2007-04-11 Simon Goldschmidt
2557 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2558 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2559 pbuf.c: removed functions no needed any more (by etharp).
2561 2007-04-11 Kieran Mansley
2562 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2563 "Constant is long" warnings with 16bit compilers. Contributed by
2564 avatar@mmlab.cse.yzu.edu.tw
2566 2007-04-05 Frédéric Bernon, Jonathan Larmour
2567 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2568 the mailbox is active". Now, the post is only done during a connect, and do_send,
2569 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2571 2007-04-03 Frédéric Bernon
2572 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2573 packets. See patch #5834.
2575 2007-03-30 Frédéric Bernon
2576 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2577 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2579 2007-03-30 Frédéric Bernon
2580 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2581 others environment defines (these were too "generic").
2583 2007-03-28 Frédéric Bernon
2584 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2585 result and can cause a crash. lwip_send now check netbuf_ref result.
2587 2007-03-28 Simon Goldschmidt
2588 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2589 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2590 defined. This is the way it should have been already (looking at
2593 2007-03-28 Kieran Mansley
2594 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2595 IP and TCP headers *and* physical link headers
2597 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2598 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2599 to send some garbage. It is not a definitive solution, but the patch does solve
2600 the problem for most cases.
2602 2007-03-22 Frédéric Bernon
2603 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2605 2007-03-22 Frédéric Bernon
2606 * api_lib.c: somes resources couldn't be freed if there was errors during
2607 netconn_new_with_proto_and_callback.
2609 2007-03-22 Frédéric Bernon
2610 * ethernetif.c: update netif->input calls to check return value. In older ports,
2611 it's a good idea to upgrade them, even if before, there could be another problem
2612 (access to an uninitialized mailbox).
2614 2007-03-21 Simon Goldschmidt
2615 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2616 by casting to unsigned).
2618 2007-03-21 Frédéric Bernon
2619 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2620 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2621 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2622 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2623 faster and more reliable communication between api_lib and tcpip.
2625 2007-03-21 Frédéric Bernon
2626 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2628 2007-03-21 Frédéric Bernon
2629 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2631 2007-03-21 Kieran Mansley
2632 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2635 2007-03-21 Kieran Mansley
2636 * Fix all uses of pbuf_header to check the return value. In some
2637 cases just assert if it fails as I'm not sure how to fix them, but
2638 this is no worse than before when they would carry on regardless
2641 2007-03-21 Kieran Mansley
2642 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2643 comment out missing header include in icmp.c
2645 2007-03-20 Frédéric Bernon
2646 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2647 synchronized with memp.h.
2649 2007-03-20 Frédéric Bernon
2650 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2651 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2652 network interfaces. Also fix a compiler warning.
2654 2007-03-20 Kieran Mansley
2655 * udp.c: Only try and use pbuf_header() to make space for headers if
2656 not a ROM or REF pbuf.
2658 2007-03-19 Frédéric Bernon
2659 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2662 2007-03-19 Frédéric Bernon
2663 * Remove unimplemented "memp_realloc" function from memp.h.
2665 2007-03-11 Simon Goldschmidt
2666 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2669 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2670 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2671 (missing `const' qualifier in socket functions), to get more compatible to
2672 standard POSIX sockets.
2674 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2675 * sockets.c: Add asserts inside bind, connect and sendto to check input
2676 parameters. Remove excessive set_errno() calls after get_socket(), because
2677 errno is set inside of get_socket(). Move last sock_set_errno() inside
2680 2007-03-09 Simon Goldschmidt
2681 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2682 was allocated too small.
2684 2007-03-06 Simon Goldschmidt
2685 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2686 the stack from concurrent access.
2688 2007-03-06 Frédéric Bernon, Dmitry Potapov
2689 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2690 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2692 2007-03-06 Simon Goldschmidt
2693 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2694 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2696 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2697 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2698 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2699 Allow to do ARP processing for incoming packets inside tcpip_thread
2700 (protecting ARP layer against concurrent access). You can also disable
2701 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2702 Older ports have to use tcpip_ethinput.
2704 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2705 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2706 from pointer target type"
2708 2007-03-05 Frédéric Bernon
2709 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2710 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2712 2007-03-04 Frédéric Bernon
2713 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2716 2007-03-04 Frédéric Bernon
2717 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2719 The api_msg struct stay on the stack (not moved to netconn struct).
2721 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2722 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2723 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2724 Also fixed cast warning in pbuf_alloc()
2726 2007-03-04 Simon Goldschmidt
2727 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2728 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2730 2007-03-03 Frédéric Bernon
2731 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2732 It is static, and never used in udp.c except udp_init().
2734 2007-03-02 Simon Goldschmidt
2735 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2736 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2737 initialized before tcpip_thread is running (e.g. before OS is started)
2739 2007-03-02 Frédéric Bernon
2740 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2743 2007-02-28 Kieran Mansley
2744 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2745 outside the region of the pbuf by pbuf_header()
2747 2007-02-28 Kieran Mansley
2748 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2749 when supplied timeout is also non-zero
2753 2006-12-05 Leon Woestenberg
2754 * CHANGELOG: Mention STABLE-1.2.0 release.
2758 2006-12-01 Christiaan Simons
2759 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2760 Note this is a workaround. Currently I have no other options left.
2762 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2763 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2764 to include/lwip/opt.h.
2765 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2766 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2767 * opt.h: Add above new options.
2769 2006-08-18 Christiaan Simons
2770 * tcp_{in,out}.c: added SNMP counters.
2771 * ipv4/ip.c: added SNMP counters.
2772 * ipv4/ip_frag.c: added SNMP counters.
2774 2006-08-08 Christiaan Simons
2775 * etharp.{c,h}: added etharp_find_addr() to read
2776 (stable) ethernet/IP address pair from ARP table
2778 2006-07-14 Christiaan Simons
2779 * mib_structs.c: added
2780 * include/lwip/snmp_structs.h: added
2781 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2783 2006-07-06 Christiaan Simons
2784 * snmp/asn1_{enc,dec}.c added
2786 * snmp/msg_{in,out}.c added
2787 * include/lwip/snmp_asn1.h added
2788 * include/lwip/snmp_msg.h added
2789 * doc/snmp_agent.txt added
2791 2006-03-29 Christiaan Simons
2792 * inet.c, inet.h: Added platform byteswap support.
2793 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2794 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2798 2006-11-30 Christiaan Simons
2799 * dhcp.c: Fixed false triggers of request_timeout.
2801 2006-11-28 Christiaan Simons
2802 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2804 2006-10-11 Christiaan Simons
2805 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2806 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2807 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2808 identifier from 170 to 136 (bug #17574).
2810 2006-10-10 Christiaan Simons
2811 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2813 2006-08-17 Christiaan Simons
2814 * udp.c: Fixed bug #17200, added check for broadcast
2815 destinations for PCBs bound to a unicast address.
2817 2006-08-07 Christiaan Simons
2818 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2820 2006-06-27 Christiaan Simons
2821 * api_msg.c: Applied patch for cold case (bug #11135).
2822 In accept_function() ensure newconn->callback is always initialized.
2824 2006-06-15 Christiaan Simons
2825 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2826 facilitate printing of mem_size_t and u16_t statistics.
2828 2006-06-14 Christiaan Simons
2829 * api_msg.c: Applied patch #5146 to handle allocation failures
2830 in accept() by Kevin Lawson.
2832 2006-05-26 Christiaan Simons
2833 * api_lib.c: Removed conn->sem creation and destruction
2834 from netconn_write() and added sys_sem_new to netconn_new_*.
2838 2006-03-03 Christiaan Simons
2839 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2840 access and added pbuf_alloc() return value checks.
2842 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2843 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2844 now handled by the checksum routine properly.
2846 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2847 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2848 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2850 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2851 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2852 submitted by Mitrani Hiroshi.
2854 2005-12-15 Christiaan Simons
2855 * inet.c: Disabled the added summing routine to preserve code space.
2857 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2858 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2859 Added Curt McDowell's optimized checksumming routine for future
2860 inclusion. Need to create test case for unaliged, aligned, odd,
2861 even length combination of cases on various endianess machines.
2863 2005-12-09 Christiaan Simons
2864 * inet.c: Rewrote standard checksum routine in proper portable C.
2866 2005-11-25 Christiaan Simons
2867 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2868 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2869 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2871 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2872 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2873 routine by Peter Jolasson.
2874 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2876 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2877 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2878 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2880 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2881 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2883 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2884 * udp.c: UDP pcb->recv() was called even when it was NULL.
2888 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2889 * etharp.*: Disabled multiple packets on the ARP queue.
2890 This clashes with TCP queueing.
2892 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2893 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2894 Halved the ARP period, doubled the period counts.
2895 ETHARP_MAX_PENDING now should be at least 2. This prevents
2896 the counter from reaching 0 right away (which would allow
2897 too little time for ARP responses to be received).
2899 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2900 * dhcp.c: Decline messages were not multicast but unicast.
2901 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2902 Do not try hard to insert arbitrary packet's source address,
2903 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2904 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2905 querying an address will see it appear in the cache (DHCP could
2906 suffer from this when a server invalidly gave an in-use address.)
2907 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2908 comparing network addresses (identifiers), not the network masks
2910 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2911 IP address actually belongs to the network of the given interface.
2913 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2914 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2918 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2919 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2920 even if one is already pending, if the rcv_wnd is above a threshold
2921 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2922 delayed ACK in order to open the window if the stack is only receiving data.
2924 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2925 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2927 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2928 * etharp.c: Make sure the first pbuf queued on an ARP entry
2929 is properly ref counted.
2931 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2932 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2933 warnings about comparison.
2934 * pbuf.c: Stopped compiler complaining of empty if statement
2935 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2936 * tcp.c: Stopped compiler complaining of empty if statement
2937 when LWIP_DEBUGF() empty.
2938 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2939 * inet.c: Added a couple of casts to quiet the compiler.
2940 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2942 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2943 * inet.c: Made data types consistent in inet_ntoa().
2944 Added casts for return values of checksum routines, to pacify compiler.
2945 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2946 Small corrections to some debugging statements, to pacify compiler.
2948 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2949 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2950 * ethernetif.c Updated low_level_output() to match prototype for
2951 netif->linkoutput and changed low_level_input() similarly for consistency.
2952 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2953 of raw_recv() in raw.h and so avoid compiler error.
2954 * sockets.c: Added trivial (int) cast to keep compiler happier.
2955 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2961 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2962 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2963 your cc.h file defines this either 1 or 0. If non-defined,
2965 * .c: Added <string.h> and <errno.h> includes where used.
2966 * etharp.c: Made some array indices unsigned.
2968 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2969 * netif.*: Added netif_set_up()/down().
2970 * dhcp.c: Changes to restart program flow.
2972 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2973 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2974 single-pass lookup for different candidates. Should exploit locality.
2976 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2977 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2978 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2979 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2980 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2984 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2985 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2986 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2987 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2988 is to prefix the 14-bit Ethernet headers with two padding bytes.
2990 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2991 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2992 * etharp.c: Fixed the case where the packet that initiates the ARP request
2993 is not queued, and gets lost. Fixed the case where the packets destination
2994 address is already known; we now always queue the packet and perform an ARP
3001 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
3002 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
3003 * Fixed two possible NULL references in rare cases.
3009 * Fixed DHCP which did not include the IP address in DECLINE messages.
3013 * etharp.c has been hauled over a bit.
3019 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3020 * Packets sent from ARP queue had invalid source hardware address.
3024 * Pass-by ARP requests do now update the cache.
3028 * No longer dependent on ctype.h.
3029 * New socket options.
3030 * Raw IP pcb support.
3036 * Some debug formatters and casts fixed.
3037 * Numereous fixes in PPP.
3041 * DEBUGF now is LWIP_DEBUGF
3042 * pbuf_dechain() has been re-enabled.
3043 * Mentioned the changed use of CVS branches in README.
3049 * Fixed pool pbuf memory leak in pbuf_alloc().
3050 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3051 Reported by Savin Zlobec.
3053 * PBUF_POOL chains had their tot_len field not set for non-first
3054 pbufs. Fixed in pbuf_alloc().
3058 * Added PPP stack contributed by Marc Boucher
3062 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3064 * ARP queueuing now queues the latest packet instead of the first.
3065 This is the RFC recommended behaviour, but can be overridden in
3072 * TCP has been fixed to deal with the new use of the pbuf->ref
3075 * DHCP dhcp_inform() crash bug fixed.
3079 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3080 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3081 Implemented by David Haas.
3087 * The packet buffer implementation has been enhanced to support
3088 zero-copy and copy-on-demand for packet buffers which have their
3089 payloads in application-managed memory.
3090 Implemented by David Haas.
3092 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3093 if an outgoing packet can be directly sent on the link, or perform
3094 a copy-on-demand when necessary.
3096 The application can safely assume the packet is sent, and the RAM
3097 is available to the application directly after calling udp_send()
3098 or similar function.
3102 * ARP_QUEUEING should now correctly work for all cases, including
3104 Implemented by Leon Woestenberg.
3108 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3109 to a '0.0.0.0' IP address.
3111 * The packet buffer implementation is changed. The pbuf->ref counter
3112 meaning has changed, and several pbuf functions have been
3113 adapted accordingly.
3115 * netif drivers have to be changed to set the hardware address length field
3116 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3117 See the contrib/ports/c16x cs8900 driver as a driver example.
3119 * netif's have a dhcp field that must be initialized to NULL by the driver.
3120 See the contrib/ports/c16x cs8900 driver as a driver example.
3122 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3123 logged in CVS but have not been explained here.
3125 (0.5.3) Changes since version 0.5.2
3129 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3130 threads because it wasn't protected by semaphores.
3134 * struct ip_addr now packed.
3136 * The name of the time variable in arp.c has been changed to ctime
3137 to avoid conflicts with the time() function.
3139 (0.5.2) Changes since version 0.5.1
3143 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3147 * A bug in tcp_parseopt() could cause the stack to hang because of a
3148 malformed TCP option.
3150 * The address of new connections in the accept() function in the BSD
3151 socket library was not handled correctly.
3153 * pbuf_dechain() did not update the ->tot_len field of the tail.
3155 * Aborted TCP connections were not handled correctly in all
3160 * All protocol header structs are now packed.
3162 * The ->len field in the tcp_seg structure now counts the actual
3163 amount of data, and does not add one for SYN and FIN segments.
3165 (0.5.1) Changes since version 0.5.0
3169 * Possible to run as a user process under Linux.
3171 * Preliminary support for cross platform packed structs.
3173 * ARP timer now implemented.
3177 * TCP output queue length was badly initialized when opening
3180 * TCP delayed ACKs were not sent correctly.
3182 * Explicit initialization of BSS segment variables.
3184 * read() in BSD socket library could drop data.
3186 * Problems with memory alignment.
3188 * Situations when all TCP buffers were used could lead to
3191 * TCP MSS option wasn't parsed correctly.
3193 * Problems with UDP checksum calculation.
3195 * IP multicast address tests had endianess problems.
3197 * ARP requests had wrong destination hardware address.
3201 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3203 * A ->linkoutput() member was added to struct netif.
3205 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3207 * ntoh* macros are now null definitions for big endian CPUs.
3209 (0.5.0) Changes since version 0.4.2
3213 * Redesigned operating system emulation layer to make porting easier.
3215 * Better control over TCP output buffers.
3217 * Documenation added.
3221 * Locking issues in buffer management.
3223 * Bugfixes in the sequential API.
3225 * IP forwarding could cause memory leakage. This has been fixed.
3229 * Directory structure somewhat changed; the core/ tree has been
3232 (0.4.2) Changes since version 0.4.1
3236 * Experimental ARP implementation added.
3238 * Skeleton Ethernet driver added.
3240 * Experimental BSD socket API library added.
3244 * In very intense situations, memory leakage could occur. This has
3249 * Variables named "data" and "code" have been renamed in order to
3250 avoid name conflicts in certain compilers.
3252 * Variable++ have in appliciable cases been translated to ++variable
3253 since some compilers generate better code in the latter case.
3255 (0.4.1) Changes since version 0.4
3259 * TCP: Connection attempts time out earlier than data
3260 transmissions. Nagle algorithm implemented. Push flag set on the
3261 last segment in a burst.
3263 * UDP: experimental support for UDP-Lite extensions.
3267 * TCP: out of order segments were in some cases handled incorrectly,
3268 and this has now been fixed. Delayed acknowledgements was broken
3269 in 0.4, has now been fixed. Binding to an address that is in use
3270 now results in an error. Reset connections sometimes hung an
3271 application; this has been fixed.
3273 * Checksum calculation sometimes failed for chained pbufs with odd
3274 lengths. This has been fixed.
3276 * API: a lot of bug fixes in the API. The UDP API has been improved
3277 and tested. Error reporting and handling has been
3278 improved. Logical flaws and race conditions for incoming TCP
3279 connections has been found and removed.
3281 * Memory manager: alignment issues. Reallocating memory sometimes
3282 failed, this has been fixed.
3284 * Generic library: bcopy was flawed and has been fixed.
3288 * API: all datatypes has been changed from generic ones such as
3289 ints, to specified ones such as u16_t. Functions that return
3290 errors now have the correct type (err_t).
3292 * General: A lot of code cleaned up and debugging code removed. Many
3293 portability issues have been fixed.
3295 * The license was changed; the advertising clause was removed.
3299 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3300 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3303 (0.4) Changes since version 0.3.1
3305 * Memory management has been radically changed; instead of
3306 allocating memory from a shared heap, memory for objects that are
3307 rapidly allocated and deallocated is now kept in pools. Allocation
3308 and deallocation from those memory pools is very fast. The shared
3309 heap is still present but is used less frequently.
3311 * The memory, memory pool, and packet buffer subsystems now support
3312 4-, 2-, or 1-byte alignment.
3314 * "Out of memory" situations are handled in a more robust way.
3316 * Stack usage has been reduced.
3318 * Easier configuration of lwIP parameters such as memory usage,
3319 TTLs, statistics gathering, etc. All configuration parameters are
3320 now kept in a single header file "lwipopts.h".
3322 * The directory structure has been changed slightly so that all
3323 architecture specific files are kept under the src/arch
3326 * Error propagation has been improved, both in the protocol modules
3329 * The code for the RTXC architecture has been implemented, tested
3332 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3333 the Internet checksum modules.
3335 * Bugs related to porting between a 32-bit and a 16-bit architecture
3336 have been found and corrected.
3338 * The license has been changed slightly to conform more with the
3339 original BSD license, including the advertisement clause.
3341 (0.3.1) Changes since version 0.3
3343 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3344 RAM never returned the RAM when the pbuf was deallocated.
3346 * TCP congestion control, window updates and retransmissions did not
3347 work correctly. This has now been fixed.
3349 * Bugfixes in the API.
3351 (0.3) Changes since version 0.2
3353 * New and improved directory structure. All include files are now
3354 kept in a dedicated include/ directory.
3356 * The API now has proper error handling. A new function,
3357 netconn_err(), now returns an error code for the connection in
3360 * Improvements in the memory management subsystem. The system now
3361 keeps a pointer to the lowest free memory block. A new function,
3362 mem_malloc2() tries to allocate memory once, and if it fails tries
3363 to free some memory and retry the allocation.
3365 * Much testing has been done with limited memory
3366 configurations. lwIP now does a better job when overloaded.
3368 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3370 * Many bugfixes in the TCP code:
3372 - Fixed a bug in tcp_close().
3374 - The TCP receive window was incorrectly closed when out of
3375 sequence segments was received. This has been fixed.
3377 - Connections are now timed-out of the FIN-WAIT-2 state.
3379 - The initial congestion window could in some cases be too
3380 large. This has been fixed.
3382 - The retransmission queue could in some cases be screwed up. This
3385 - TCP RST flag now handled correctly.
3387 - Out of sequence data was in some cases never delivered to the
3388 application. This has been fixed.
3390 - Retransmitted segments now contain the correct acknowledgment
3391 number and advertised window.
3393 - TCP retransmission timeout backoffs are not correctly computed
3394 (ala BSD). After a number of retransmissions, TCP now gives up
3397 * TCP connections now are kept on three lists, one for active
3398 connections, one for listening connections, and one for
3399 connections that are in TIME-WAIT. This greatly speeds up the fast
3400 timeout processing for sending delayed ACKs.
3402 * TCP now provides proper feedback to the application when a
3403 connection has been successfully set up.
3405 * More comments have been added to the code. The code has also been
3406 somewhat cleaned up.
3408 (0.2) Initial public release.