5 * [Enter new changes just after this line - do not remove this line]
9 2012-03-25: Simon Goldschmidt (idea by Mason)
10 * posix/*: added posix-compatibility include files posix/netdb.h and posix/sys/socket.h
11 which are a simple wrapper to the correct lwIP include files.
13 2012-01-16: Simon Goldschmidt
14 * opt.h, icmp.c: Added option CHECKSUM_GEN_ICMP
16 2011-12-17: Simon Goldschmidt
17 * ip.h: implemented API functions to access so_options of IP pcbs (UDP, TCP, RAW)
20 2011-09-27: Simon Goldschmidt
21 * opt.h, tcp.c, tcp_in.c: Implemented limiting data on ooseq queue (task #9989)
22 (define TCP_OOSEQ_MAX_BYTES / TCP_OOSEQ_MAX_PBUFS in lwipopts.h)
24 2011-09-21: Simon Goldschmidt
25 * opt.h, api.h, api_lib.c, api_msg.h/.c, sockets.c: Implemented timeout on
26 send (TCP only, bug #33820)
28 2011-09-21: Simon Goldschmidt
29 * init.c: Converted runtime-sanity-checks into compile-time checks that can
30 be disabled (since runtime checks can often not be seen on embedded targets)
32 2011-09-11: Simon Goldschmidt
33 * ppp.h, ppp_impl.h: splitted ppp.h to an internal and external header file
34 to get a clear separation of which functions an application or port may use
37 2011-09-11: Simon Goldschmidt
38 * opt.h, tcp_impl.h, tcp.c, udp.h/.c: Added a config option to randomize
39 initial local TCP/UDP ports (so that different port ranges are used after
40 a reboot; bug #33818; this one added tcp_init/udp_init functions again)
42 2011-09-03: Simon Goldschmidt
43 * dhcp.c: DHCP uses LWIP_RAND() for xid's (bug #30302)
45 2011-08-24: Simon Goldschmidt
46 * opt.h, netif.h/.c: added netif remove callback (bug #32397)
48 2011-07-26: Simon Goldschmidt
49 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
50 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
52 2011-07-21: Simon Goldschmidt (patch by hanhui)
53 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
54 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
55 Also added code to allow ip_forward() to forward non-broadcast packets to
56 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
58 2011-07-21: Simon Goldschmidt
59 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
60 ioctl/FIONREAD return the size of the next pending datagram.
62 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
63 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
66 2011-05-25: Simon Goldschmidt
67 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
68 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
69 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
70 code so that the code is more readable.
72 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
73 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
74 Ivan! (this is work in progress: we're just post release anyway :-)
76 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
77 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
83 2013-04-24: Simon Goldschmidt
84 * igmp.c: fixed possible division by zero
86 2013-04-24: Simon Goldschmidt
87 * ip6.h, some ipv6 C files: fixed bug #38526 Coverity: Recursive Header Inclusion in ip6.h
89 2013-04-24: Simon Goldschmidt (patch by Emil Ljungdahl):
90 * netif.c: fixed bug #38586 netif_loop_output() "deadlocks"
92 2013-01-15: Simon Goldschmidt
93 * ip4.c: fixed bug #37665 ip_canforward operates on address in wrong byte order
95 2013-01-15: Simon Goldschmidt
96 * pbuf.h: fixed bug #38097 pbuf_free_ooseq() warning
98 2013-01-14: Simon Goldschmidt
99 * dns.c: fixed bug #37705 Possible memory corruption in DNS query
101 2013-01-11: Simon Goldschmidt
102 * raw.c: fixed bug #38066 Raw pcbs can alter packet without eating it
104 2012-09-26: Simon Goldschmidt
105 * api_msg.c: fixed bug #37405 'err_tcp()' uses already freed 'netconn' object
107 2012-09-26: patch by Henrik Persson
108 * dhcp.c: patch #7843 Fix corner case with dhcp timeouts
110 2012-09-26: patch by Henrik Persson
111 * dhcp.c: patch #7840 Segfault in dhcp_parse_reply if no end marker in dhcp packet
113 2012-08-22: Simon Goldschmidt
114 * memp.c: fixed bug #37166: memp_sanity check loops itself
116 2012-08-13: Simon Goldschmidt
117 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
120 2012-08-13: Simon Goldschmidt
121 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
122 configured but no interfaces available
124 2012-08-13: Simon Goldschmidt
125 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
127 2012-05-11: Simon Goldschmidt (patch by Marty)
128 * memp.c: fixed bug #36412: memp.c does not compile when
129 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
131 2012-05-08: Simon Goldschmidt
132 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
133 a debug-check issue only)
135 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
136 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
139 2012-05-03: Simon Goldschmidt (patch by David Empson)
140 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
143 2012-03-27: Simon Goldschmidt
144 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
146 2012-03-27: Simon Goldschmidt (patch by Mason)
147 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
150 2012-03-25: Simon Goldschmidt
151 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
152 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
154 2012-03-25: Simon Goldschmidt
155 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
156 pollution in api_msg.c and netifapi.c
158 2012-03-22: Simon Goldschmidt
159 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
161 2012-03-20: Simon Goldschmidt (patch by Mason)
162 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
164 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
165 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
166 possible bug on little endian system
168 2012-02-23: Simon Goldschmidt
169 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
170 (introduced when fixing bug# 33551)
172 2012-02-16: Simon Goldschmidt
173 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
174 (bug #35541: PPP Memory Leak)
176 2012-02-16: Simon Goldschmidt
177 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
178 (introduced when fixing bug# 33551)
180 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
181 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
183 2012-02-15: Simon Goldschmidt
184 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
187 2012-02-12: Simon Goldschmidt
188 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
189 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
191 2012-02-11: Simon Goldschmidt
192 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
195 2012-01-22: Simon Goldschmidt
196 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
198 2012-01-21: Simon Goldschmidt
199 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
201 2012-01-20: Simon Goldschmidt
202 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
204 2012-01-20: Simon Goldschmidt
205 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
207 2011-11-25: Simon Goldschmidt
208 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
209 tcp_active_pcbs in some cases
211 2011-11-23: Simon Goldschmidt
212 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
215 2011-11-22: Simon Goldschmidt
216 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
217 netif is brought down
219 2011-10-28: Simon Goldschmidt
220 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
222 2011-10-23: Simon Goldschmidt
223 * mem.c: fixed bug #34429: possible memory corruption with
224 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
226 2011-10-18: Simon Goldschmidt
227 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
230 2011-10-18: Simon Goldschmidt
231 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
232 windows (bug #34176 select after non-blocking send times out)
234 2011-10-18: Simon Goldschmidt
235 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
236 consider netif->mtu, causes slow network
238 2011-10-18: Simon Goldschmidt
239 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
241 2011-10-18: Simon Goldschmidt
242 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
244 2011-10-17: Simon Goldschmidt
245 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
247 2011-10-13: Simon Goldschmidt
248 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
249 zero window is received) by starting the persist timer when a zero window is
250 received, not when we have more data queued for sending than fits into the
253 2011-10-13: Simon Goldschmidt
254 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
256 2011-10-13: Simon Goldschmidt
257 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
258 used and not all protocols are enabled
260 2011-10-12: Simon Goldschmidt
261 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
263 2011-10-09: Simon Goldschmidt
264 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
265 byte value when pcb->unacked != NULL
267 2011-10-09: Simon Goldschmidt
268 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
270 2011-09-27: Simon Goldschmidt
271 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
273 2011-09-27: Simon Goldschmidt
274 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
276 2011-09-27: Simon Goldschmidt
277 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
279 2011-09-24: Simon Goldschmidt
280 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
282 2011-09-23: Simon Goldschmidt
283 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
284 the last packet including FIN can lose data
286 2011-09-22: Simon Goldschmidt
287 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
290 2011-09-21: Simon Goldschmidt
291 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
294 2011-09-20: Simon Goldschmidt
295 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
297 2011-09-11: Simon Goldschmidt
298 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
301 2011-09-09: Simon Goldschmidt
302 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
305 2011-09-03: Simon Goldschmidt
306 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
307 is aggregated and sent to application
309 2011-09-01: Simon Goldschmidt
310 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
313 2011-09-01: Simon Goldschmidt
314 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
316 2011-08-24: Simon Goldschmidt
317 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
319 2011-08-24: Simon Goldschmidt
320 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
321 accept() on UDP connections
323 2011-08-24: Simon Goldschmidt
324 * sockets.h: fixed bug #34057 socklen_t should be a typedef
326 2011-08-24: Simon Goldschmidt
327 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
329 2011-08-24: Simon Goldschmidt
330 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
332 2011-08-24: Simon Goldschmidt
333 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
335 2011-08-22: Simon Goldschmidt
336 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
337 merely prevents nagle from not transmitting fast after closing.)
339 2011-07-22: Simon Goldschmidt
340 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
341 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
342 lwip_send() sends as much as possible for non-blocking sockets
344 2011-07-22: Simon Goldschmidt
345 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
346 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
347 at regular intervals from main level.
349 2011-07-21: Simon Goldschmidt
350 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
351 sending an ARP request when an ARP entry is used in the last minute before
354 2011-07-04: Simon Goldschmidt
355 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
357 2011-06-26: Simon Goldschmidt
358 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
359 updating its documentation only.
361 2011-06-26: Simon Goldschmidt
362 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
365 2011-06-26: Simon Goldschmidt
366 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
374 2011-03-27: Simon Goldschmidt
375 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
376 calculate it in tcp_zero_window_probe (the only place where it was used).
378 2010-11-21: Simon Goldschmidt
379 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
382 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
383 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
384 IP_MULTICAST_LOOP at socket- and raw-API level.
386 2010-06-16: Simon Goldschmidt
387 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
388 link-layer-addressed UDP traffic to be received while a netif is down (just
389 like DHCP during configuration)
391 2010-05-22: Simon Goldschmidt
392 * many many files: bug #27352: removed packing from ip_addr_t, the packed
393 version is now only used in protocol headers. Added global storage for
394 current src/dest IP address while in input functions.
396 2010-05-16: Simon Goldschmidt
397 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
398 calculation (and use them throughout the stack where applicable)
400 2010-05-16: Simon Goldschmidt
401 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
402 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
404 2010-05-16: Simon Goldschmidt
405 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
406 MEMP pool instead of the heap
408 2010-05-13: Simon Goldschmidt
409 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
410 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
411 packets to more than one pcb.
413 2010-05-02: Simon Goldschmidt
414 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
415 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
417 2010-04-30: Simon Goldschmidt
418 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
419 take a precalculated checksum, added pbuf_fill_chksum() to copy data
420 into a pbuf and at the same time calculating the checksum for that data
422 2010-04-29: Simon Goldschmidt
423 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
424 2-byte-aligned IP addresses and MAC addresses
426 2010-04-28: Patch by Bill Auerbach
427 * ip.c: Inline generating IP checksum to save a function call
429 2010-04-14: Simon Goldschmidt
430 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
431 tcpip_thread processes messages or timeouts to implement a watchdog.
433 2010-03-28: Simon Goldschmidt
434 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
435 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
437 2010-03-27: Simon Goldschmidt
438 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
439 etharp_query to prevent unnecessary function calls (inspired by
442 2010-03-20: Simon Goldschmidt
443 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
444 since the linker cannot do this automatically to save space.
446 2010-03-20: Simon Goldschmidt
447 * opt.h, etharp.c/.h: Added support for static ARP table entries
449 2010-03-14: Simon Goldschmidt
450 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
451 when creating TCP segments, not when (re-)transmitting them.
453 2010-03-07: Simon Goldschmidt
454 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
455 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
456 This should speed up receiving data on sockets as the select code in
457 event_callback is only executed when select is waiting.
459 2010-03-06: Simon Goldschmidt
460 * tcp_out.c: task #7013 (Create option to have all packets delivered to
461 netif->output in one piece): Always copy to try to create single pbufs
464 2010-03-06: Simon Goldschmidt
465 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
466 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
467 for tcp netconns to receive pbufs, not netbufs; use that function
470 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
471 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
472 Work on tcp_enqueue: Don't waste memory when chaining segments,
473 added option TCP_OVERSIZE to prevent creating many small pbufs when
474 calling tcp_write with many small blocks of data. Instead, pbufs are
475 allocated larger than needed and the space is used for later calls to
478 2010-02-21: Simon Goldschmidt
479 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
482 2010-02-21: Simon Goldschmidt
483 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
484 implementation of tcp to make API usage cleare to application programmers
486 2010-02-14: Simon Goldschmidt/Stephane Lesage
487 * ip_addr.h: Improved some defines working on ip addresses, added faster
488 macro to copy addresses that cannot be NULL
490 2010-02-13: Simon Goldschmidt
491 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
492 blocking send operation)
494 2010-02-12: Simon Goldschmidt
495 * sockets.c/.h: Added a minimal version of posix fctl() to have a
496 standardised way to set O_NONBLOCK for nonblocking sockets.
498 2010-02-12: Simon Goldschmidt
499 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
500 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
501 and dhcp work with user-allocated structs instead of callin mem_malloc
503 2010-02-12: Simon Goldschmidt/Jeff Barber
504 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
505 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
507 2010-02-12: Simon Goldschmidt
508 * sys layer: task #10139 (Prefer statically allocated memory): converted
509 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
510 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
511 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
512 to let sys.h use binary semaphores instead of mutexes - as before)
514 2010-02-09: Simon Goldschmidt (Simon Kallweit)
515 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
516 (Restart system timeout handling)
518 2010-02-09: Simon Goldschmidt
519 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
520 netif.c) - loopif does not have to be created by the port any more,
521 just define LWIP_HAVE_LOOPIF to 1.
523 2010-02-08: Simon Goldschmidt
524 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
525 inet_ntoa_r/ipaddr_ntoa_r
527 2010-02-08: Simon Goldschmidt
528 * netif.h: Added netif_s/get_igmp_mac_filter() macros
530 2010-02-05: Simon Goldschmidt
531 * netif.h: Added function-like macros to get/set the hostname on a netif
533 2010-02-04: Simon Goldschmidt
534 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
535 make changing the actual implementation behind the typedef easier.
537 2010-02-01: Simon Goldschmidt
538 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
539 for allocating memory when getaddrinfo() is called.
541 2010-01-31: Simon Goldschmidt
542 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
543 them once instead of parsing for every option. This also removes
544 the need for mem_malloc from dhcp_recv and makes it possible to
545 correctly retrieve the BOOTP file.
547 2010-01-30: simon Goldschmidt
548 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
551 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
552 * api.h, api_msg.c, sockets.c: Added except set support in select
555 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
556 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
557 Add non-blocking support for connect (partly from patch #6860),
558 plus many cleanups in socket & netconn API.
560 2010-01-27: Simon Goldschmidt
561 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
562 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
564 2010-01-26: Simon Goldschmidt
565 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
567 2010-01-14: Simon Goldschmidt
568 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
569 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
571 2010-01-13: Simon Goldschmidt
572 * mem.c: The heap now may be moved to user-defined memory by defining
573 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
574 (patch #6966 and bug #26133)
576 2010-01-10: Simon Goldschmidt (Bill Auerbach)
577 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
580 2010-01-10: Simon Goldschmidt
581 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
582 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
584 2009-12-31: Simon Goldschmidt
585 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
586 added timers.c/.h: Separated timer implementation from semaphore/mbox
587 implementation, moved timer implementation to timers.c/.h, timers are
588 now only called from tcpip_thread or by explicitly checking them.
591 2009-12-27: Simon Goldschmidt
592 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
593 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
598 2011-04-20: Simon Goldschmidt
599 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
601 2011-04-13: Simon Goldschmidt
602 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
603 using ports in the IANA private/dynamic range (49152 through 65535).
605 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
606 * etharp.h/.c: Fixed broken VLAN support.
608 2011-03-27: Simon Goldschmidt
609 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
610 pcbs) by checking if the pcb was bound (local_port != 0).
612 2011-03-27: Simon Goldschmidt
613 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
615 2011-03-27: Simon Goldschmidt
616 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
617 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
619 2011-03-27: Simon Goldschmidt
620 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
621 is present never times out) by starting retransmission timer before checking
624 2011-03-22: Simon Goldschmidt
625 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
626 calling sio_read_abort() if the file descriptor is valid.
628 2011-03-14: Simon Goldschmidt
629 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
630 more than once can render a socket useless) since it mainly involves changing
631 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
633 2011-03-13: Simon Goldschmidt
634 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
635 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
636 use EALRADY instead of -1
638 2011-03-13: Simon Goldschmidt
639 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
640 connection has been aborted by err_tcp (since this is not a normal closing
643 2011-03-13: Simon Goldschmidt
644 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
645 with pcb->state != CLOSED
647 2011-02-17: Simon Goldschmidt
648 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
651 2011-02-17: Simon Goldschmidt
652 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
654 2011-01-24: Simon Goldschmidt
655 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
657 2010-12-02: Simon Goldschmidt
658 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
660 2010-11-23: Simon Goldschmidt
661 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
662 LWIP_SO_RCVBUF and ioctl/FIONREAD.
664 2010-11-23: Simon Goldschmidt
665 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
666 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
668 2010-11-23: Simon Goldschmidt
669 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
670 refusing 'refused_data' again.
672 2010-11-22: Simon Goldschmidt
673 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
674 after a successful nonblocking connection.
676 2010-11-22: Simon Goldschmidt
677 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
678 must be sent link-local
680 2010-11-22: Simon Goldschmidt
681 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
684 2010-11-20: Simon Goldschmidt
685 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
687 2010-11-20: Simon Goldschmidt
688 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
689 resemble other stacks.
691 2010-11-20: Simon Goldschmidt
692 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
693 no-copy TCP writes will never succeed.
695 2010-11-20: Simon Goldschmidt
696 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
697 not match documentation: return ERR_ARG instead of ERR_VAL if not
698 initialized or wrong argument.
700 2010-10-20: Simon Goldschmidt
701 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
703 2010-10-05: Simon Goldschmidt
704 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
705 replugging the network cable after an AutoIP address was assigned.
707 2010-08-10: Simon Goldschmidt
708 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
710 2010-08-03: Simon Goldschmidt
711 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
713 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
714 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
715 endian architectures)
717 2010-07-28: Simon Goldschmidt
718 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
721 2010-07-27: Simon Goldschmidt
722 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
723 harm but never did anything
725 2010-07-21: Simon Goldschmidt
726 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
729 2010-07-16: Kieran Mansley
730 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
732 2010-07-10: Simon Goldschmidt
733 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
735 2010-06-30: Simon Goldschmidt
736 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
739 2010-06-28: Kieran Mansley
740 * timers.c remove unportable printing of C function pointers
742 2010-06-24: Simon Goldschmidt
743 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
744 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
746 2010-06-24: Simon Goldschmidt
747 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
748 implemented shutdown at socket level.
750 2010-06-21: Simon Goldschmidt
751 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
752 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
753 custom pbufs that reference other (original) pbufs. Additionally set
754 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
756 2010-06-15: Simon Goldschmidt
757 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
759 2010-06-14: Simon Goldschmidt
760 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
762 2010-06-12: Simon Goldschmidt
763 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
766 2010-05-17: Simon Goldschmidt
767 * netdb.c: Correctly NULL-terminate h_addr_list
769 2010-05-16: Simon Goldschmidt
770 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
771 "symbol already defined" i.e. when linking to winsock
773 2010-05-05: Simon Goldschmidt
774 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
777 2010-04-21: Simon Goldschmidt
778 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
781 2010-03-28: Luca Ceresoli
782 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
784 2010-03-27: Luca Ceresoli
785 * mib2.c: patch #7130: remove meaningless const qualifiers
787 2010-03-26: Simon Goldschmidt
788 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
790 2010-03-26: Simon Goldschmidt
791 * various files: Fixed compiling with different options disabled (TCP/UDP),
792 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
794 2010-03-25: Simon Goldschmidt
795 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
797 2010-03-25: Simon Goldschmidt
798 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
799 overrunning our rcv_wnd in ooseq case.
801 2010-03-22: Simon Goldschmidt
802 * tcp.c: tcp_listen() did not copy the pcb's prio.
804 2010-03-19: Simon Goldschmidt
805 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
807 2010-03-14: Simon Goldschmidt
808 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
809 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
810 and basing PBUF_LINK_HLEN on it.
812 2010-03-08: Simon Goldschmidt
813 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
814 when assiging routable address): when checking incoming packets and
815 aborting existing connection on address change, filter out link-local
818 2010-03-06: Simon Goldschmidt
819 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
821 2010-03-06: Simon Goldschmidt
822 * ipv4/ip.c: Don't try to forward link-local addresses
824 2010-03-06: Simon Goldschmidt
825 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
828 2010-03-05: Simon Goldschmidt
829 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
832 2010-03-05: Simon Goldschmidt
833 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
834 into multiple calls to tcp_write.
836 2010-02-21: Simon Goldschmidt
837 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
838 the implementation of DNS_USES_STATIC_BUF==1)
840 2010-02-20: Simon Goldschmidt
841 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
842 close() vs. shutdown(). Now the application does not get any more
843 recv callbacks after calling tcp_close(). Added tcp_shutdown().
845 2010-02-19: Simon Goldschmidt
846 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
847 confusion with realloc()
849 2010-02-15: Simon Goldschmidt/Stephane Lesage
850 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
853 2010-02-14: Simon Goldschmidt
854 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
855 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
856 admin-status of a netif are up
858 2010-02-14: Simon Goldschmidt
859 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
860 reception and is not really necessary
862 2010-02-14: Simon Goldschmidt
863 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
864 request was directed as us (RFC 826, Packet Reception), otherwise
865 only update existing entries; internalized some functions
867 2010-02-14: Simon Goldschmidt
868 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
869 disabled on netif used for PPPoE) by adding a new netif flag
870 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
871 device but prevents usage of ARP (so that ethernet_input can be used
874 2010-02-12: Simon Goldschmidt
875 * netif.c: netif_set_link_up/down: only do something if the link state
878 2010-02-12: Simon Goldschmidt/Stephane Lesage
879 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
882 2010-02-12: Simon Goldschmidt
883 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
885 2010-02-09: Simon Goldschmidt
886 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
887 (recv() makes receive window update for data that wasn't received by
890 2010-02-09: Simon Goldschmidt/Stephane Lesage
891 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
892 or any netconn_recv() error)
894 2010-02-09: Simon Goldschmidt
895 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
897 2010-02-09: Simon Goldschmidt
898 * netif.c: For loopback packets, adjust the stats- and snmp-counters
899 for the loopback netif.
901 2010-02-08: Simon Goldschmidt
902 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
903 since they are not used anywhere else.
905 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
906 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
907 (patch from bug #28798)
909 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
910 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
911 another bug when LWIP_RAND() returns zero.
913 2010-02-04: Simon Goldschmidt
914 * nearly every file: Use macros defined in ip_addr.h (some of them new)
915 to work with IP addresses (preparation for bug #27352 - Change ip_addr
916 from struct to typedef (u32_t) - and better code).
918 2010-01-31: Simon Goldschmidt
919 * netif.c: Don't call the link-callback from netif_set_up/down() since
920 this invalidly retriggers DHCP.
922 2010-01-29: Simon Goldschmidt
923 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
924 portability file inet.h and its contents from the stack: moved htonX-
925 functions to def.h (and the new def.c - they are not ipv4 dependent),
926 let inet.h depend on ip_addr.h and not the other way round.
927 This fixes bug #28732.
929 2010-01-28: Kieran Mansley
930 * tcp.c: Ensure ssthresh >= 2*MSS
932 2010-01-27: Simon Goldschmidt
933 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
934 callback can lead to accessing unallocated memory. As a consequence,
935 ERR_ABRT means the application has called tcp_abort()!
937 2010-01-25: Simon Goldschmidt
938 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
939 not implemented in SNMP): write-only or not-accessible are still
940 returned by getnext (though not by get)
942 2010-01-24: Simon Goldschmidt
943 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
944 not use reserved C/C++ keywords
946 2010-01-23: Simon Goldschmidt
947 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
950 2010-01-21: Simon Goldschmidt
951 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
952 if tcp_enqueue fails) both in raw- and netconn-API
954 2010-01-19: Simon Goldschmidt
955 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
957 2010-01-18: Iordan Neshev/Simon Goldschmidt
958 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
959 bugfix backports from 2.4.x.
961 2010-01-18: Simon Goldschmidt
962 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
964 2010-01-17: Simon Goldschmidt
965 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
966 task #10102: "netconn: clean up conn->err threading issues" by adding
967 error return value to struct api_msg_msg
969 2010-01-17: Simon Goldschmidt
970 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
971 to return err_t (bugs #27709 and #28087)
973 2010-01-14: Simon Goldschmidt
974 * ...: Use typedef for function prototypes throughout the stack.
976 2010-01-13: Simon Goldschmidt
977 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
978 window = 0) by correctly draining recvmbox/acceptmbox
980 2010-01-11: Simon Goldschmidt
981 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
982 erroneous callbacks) by copying the code from recent pppd
984 2010-01-10: Simon Goldschmidt
985 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
987 2010-01-10: Simon Goldschmidt
988 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
990 2010-01-08: Simon Goldschmidt
991 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
993 2010-01-08: Simon Goldschmidt
994 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
995 passed to dns_local_addhost() might be volatile
997 2010-01-07: Simon Goldschmidt
998 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
1000 2010-01-06: Simon Goldschmidt
1001 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
1003 2009-12-31: Simon Goldschmidt
1004 * many ppp files: Reorganised PPP source code from ucip structure to pppd
1005 structure to easily compare our code against the pppd code (around v2.3.1)
1007 2009-12-27: Simon Goldschmidt
1008 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
1016 2009-10-27 Simon Goldschmidt/Stephan Lesage
1017 * netifapi.c/.h: Added netifapi_netif_set_addr()
1019 2009-10-07 Simon Goldschmidt/Fabian Koch
1020 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
1021 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
1023 2009-08-26 Simon Goldschmidt/Simon Kallweit
1024 * slipif.c/.h: bug #26397: SLIP polling support
1026 2009-08-25 Simon Goldschmidt
1027 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
1028 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
1030 2009-08-25 Simon Goldschmidt
1031 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1033 2009-08-24 Jakob Stoklund Olesen
1034 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1035 to netif_set_link_up().
1037 2009-08-23 Simon Goldschmidt
1038 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1039 to a human-readable string.
1043 2009-12-24: Kieran Mansley
1044 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1047 2009-12-06: Simon Goldschmidt
1048 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1049 be statically allocated (like in ucip)
1051 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1052 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1054 2009-12-03: Simon Goldschmidt
1055 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1056 could have non-zero length
1058 2009-12-02: Simon Goldschmidt
1059 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1060 tcp_input_pcb until after calling the pcb's callbacks
1062 2009-11-29: Simon Goldschmidt
1063 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1064 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1066 2009-11-29: Simon Goldschmidt
1067 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1068 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1070 2009-11-26: Simon Goldschmidt
1071 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1074 2009-11-26: Simon Goldschmidt
1075 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1076 algorithm at PCB level
1078 2009-11-22: Simon Goldschmidt
1079 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1081 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1082 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1083 reusing time-wait pcb
1085 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1086 * sockets.c: Fixed bug #28062: Data received directly after accepting
1087 does not wake up select
1089 2009-11-11: Simon Goldschmidt
1090 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1092 2009-10-30: Simon Goldschmidt
1093 * opt.h: Increased default value for TCP_MSS to 536, updated default
1094 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1096 2009-10-28: Kieran Mansley
1097 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1098 to follow algorithm from TCP/IP Illustrated
1100 2009-10-27: Kieran Mansley
1101 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1103 2009-10-25: Simon Goldschmidt
1104 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1105 pcb->recv is NULL to keep rcv_wnd correct)
1107 2009-10-25: Simon Goldschmidt
1108 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1110 2009-10-23: Simon Goldschmidt (David Empson)
1111 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1113 2009-10-21: Simon Goldschmidt
1114 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1115 trailing 1 byte len (SYN/FIN)
1117 2009-10-21: Simon Goldschmidt
1118 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1120 2009-10-19: Simon Goldschmidt
1121 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1122 conditional code to assert where applicable), check pbuf length before
1123 testing for valid reply
1125 2009-10-19: Simon Goldschmidt
1126 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1127 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1129 2009-10-16: Simon Goldschmidt
1130 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1131 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1134 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1135 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1137 2009-10-15: Simon Goldschmidt
1138 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1141 2009-10-15: Simon Goldschmidt
1142 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1143 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1144 of network byte order
1146 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1147 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1148 which are not consecutive when retransmitting unacked segments
1150 2009-10-09 Simon Goldschmidt
1151 * opt.h: Fixed default values of some stats to only be enabled if used
1152 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1154 2009-08-30 Simon Goldschmidt
1155 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1156 function" by checking for loopback before calling ip_frag
1158 2009-08-25 Simon Goldschmidt
1159 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1161 2009-08-23 Simon Goldschmidt
1162 * ppp.c: bug #27078: Possible memory leak in pppInit()
1164 2009-08-23 Simon Goldschmidt
1165 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1168 2009-08-23 Simon Goldschmidt
1169 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1170 Fixed wrong parenthesis, added check in init.c
1172 2009-08-23 Simon Goldschmidt
1173 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1175 2009-08-23 Simon Goldschmidt
1176 * many ppp files: bug #27267: Added include to string.h where needed
1178 2009-08-23 Simon Goldschmidt
1179 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1186 2009-05-10 Simon Goldschmidt
1187 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1188 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1189 one pbuf to help MACs that don't support scatter-gather DMA.
1191 2009-05-09 Simon Goldschmidt
1192 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1193 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1195 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1196 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1197 extended info about the currently received packet.
1199 2009-04-27 Simon Goldschmidt
1200 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1202 2009-04-25 Simon Goldschmidt
1203 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1204 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1206 2009-04-21 Simon Goldschmidt
1207 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1208 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1209 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1210 as an external function for lookup.
1212 2009-04-15 Simon Goldschmidt
1213 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1215 2009-03-31 Kieran Mansley
1216 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1217 TCP timestamp options, off by default. Rework tcp_enqueue() to
1218 take option flags rather than specified option data
1220 2009-02-18 Simon Goldschmidt
1221 * cc.h: Added printf formatter for size_t: SZT_F
1223 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1224 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1227 2009-02-12 Simon Goldschmidt
1228 * init.h: Added LWIP_VERSION to get the current version of the stack
1230 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1231 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1232 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1235 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1236 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1237 is only used by UDPLITE at present, so conditionalise it.
1239 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1240 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1241 "seed" address. This should reduce AUTOIP conflicts if
1242 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1244 2008-10-02 Jonathan Larmour and Rishi Khan
1245 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1248 2008-06-30 Simon Goldschmidt
1249 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1250 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1251 mem_free to run between mem_malloc iterations. Added illegal counter for
1254 2008-06-27 Simon Goldschmidt
1255 * stats.h/.c, some other files: patch #6483: stats module improvement:
1256 Added defines to display each module's statistic individually, added stats
1257 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1259 2008-06-17 Simon Goldschmidt
1260 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1261 (define LWIP_ERR_T in cc.h)
1263 2008-06-17 Simon Goldschmidt
1264 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1267 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1268 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1269 modified version of patch # 6370: Moved loopif code to netif.c so that
1270 loopback traffic is supported on all netifs (all local IPs).
1271 Added option to limit loopback packets for each netifs.
1275 2009-08-12 Kieran Mansley
1276 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1277 out of window or out of order properly
1279 2009-08-12 Kieran Mansley
1280 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1282 2009-07-28 Simon Goldschmidt
1283 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1285 2009-07-27 Kieran Mansley
1286 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1288 2009-07-09 Kieran Mansley
1289 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1290 recv_avail and don't increment counters until message successfully
1293 2009-06-25 Kieran Mansley
1294 * api_msg.c api.h: BUG26722: initialise netconn write variables
1297 2009-06-25 Kieran Mansley
1298 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1300 2009-06-25 Kieran Mansley
1301 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1302 simultaneous close behaviour, and make snd_nxt have the same meaning
1305 2009-05-12 Simon Goldschmidt
1306 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1307 arp_table / uses etharp_query" by adding etharp_gratuitous()
1309 2009-05-12 Simon Goldschmidt
1310 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1311 to the IP header (used by igmp_ip_output_if)
1313 2009-05-06 Simon Goldschmidt
1314 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1315 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1317 2009-05-05 Simon Goldschmidt
1318 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1321 2009-05-04 Simon Goldschmidt
1322 * init.c: snmp was not initialized in lwip_init()
1324 2009-05-04 Frédéric Bernon
1325 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1327 2009-05-03 Simon Goldschmidt
1328 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1329 (and unsent->next == NULL)
1331 2009-05-02 Simon Goldschmidt
1332 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1333 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1335 2009-05-02 Simon Goldschmidt
1336 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1338 2009-05-01 Simon Goldschmidt
1339 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1341 2009-05-01 Simon Goldschmidt
1342 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1344 2009-04-29 Frédéric Bernon
1345 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1346 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1347 of broadcast packets even when this option wasn't set. Port maintainers
1348 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1349 If you want this option also filter broadcast on recv operations, you also
1350 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1352 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1353 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1354 DHCP/AUTOIP cooperation
1356 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1357 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1358 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1359 right place in tcp_output and tcp_rexmit).
1361 2009-04-25 Simon Goldschmidt
1362 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1363 when debugging": memp_sizes contained the wrong sizes (including sanity
1364 regions); memp pools for MEM_USE_POOLS were too small
1366 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1367 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1368 behavior, with with ip address string not ended by a '\0', a space or a
1371 2009-04-19 Simon Goldschmidt
1372 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1373 pcb->err is called, not pcb->connected (with an error code).
1375 2009-04-19 Simon Goldschmidt
1376 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1377 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1379 2009-04-19 Simon Goldschmidt
1380 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1381 in the header pbuf, not the data pbuf)
1383 2009-04-18 Simon Goldschmidt
1384 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1386 2009-04-15 Simon Goldschmidt
1387 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1389 2009-04-15 Simon Goldschmidt
1390 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1392 2009-04-15 Simon Goldschmidt
1393 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1394 ip_hinted_output() (for smaller code mainly)
1396 2009-04-15 Simon Goldschmidt
1397 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1399 2009-04-15 Simon Goldschmidt
1400 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1401 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1402 is big enough in dhcp_start
1404 2009-04-15 Simon Goldschmidt
1405 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1407 2009-04-15 Simon Goldschmidt
1408 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1410 2009-04-15 Simon Goldschmidt
1411 * sockets.c: bug #26121: set_errno can be overridden
1413 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1414 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1417 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1418 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1421 2009-03-31 Kieran Mansley
1422 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1423 updates are calculated and sent (BUG20515)
1425 * tcp_in.c: cope with SYN packets received during established states,
1426 and retransmission of initial SYN.
1428 * tcp_out.c: set push bit correctly when tcp segments are merged
1430 2009-03-27 Kieran Mansley
1431 * tcp_out.c set window correctly on probes (correcting change made
1434 2009-03-26 Kieran Mansley
1435 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1436 connections where no reset required (bug #25622)
1438 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1441 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1442 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1443 too small depending on MEM_ALIGNMENT
1445 2009-02-16 Simon Goldschmidt
1446 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1447 converted size argument of netconn_write to 'size_t'
1449 2009-02-16 Simon Goldschmidt
1450 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1451 by moving accept callback function pointer to TCP_PCB_COMMON
1453 2009-02-12 Simon Goldschmidt
1454 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1457 2009-02-11 Simon Goldschmidt
1458 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1460 2009-02-11 Simon Goldschmidt
1461 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1462 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1464 2009-02-10 Simon Goldschmidt
1465 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1466 Accepts_pending is decrease on a corresponding listen pcb when a connection
1467 in state SYN_RCVD is close.
1469 2009-01-28 Jonathan Larmour
1470 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1473 2008-12-19 Simon Goldschmidt
1474 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1476 2008-12-10 Tamas Somogyi, Frédéric Bernon
1477 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1478 port uses deleted netbuf.
1480 2008-10-18 Simon Goldschmidt
1481 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1484 2008-10-15 Simon Goldschmidt
1485 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1486 by packing the struct ip_reass_helper.
1488 2008-10-03 David Woodhouse, Jonathan Larmour
1489 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1491 2008-10-02 Jonathan Larmour
1492 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1493 padding is included.
1495 2008-09-30 Jonathan Larmour
1496 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1497 assertion check that addrlen isn't NULL.
1499 2008-09-30 Jonathan Larmour
1500 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1502 2008-08-26 Simon Goldschmidt
1503 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1504 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1506 2008-08-14 Simon Goldschmidt
1507 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1508 tcp_close returns != ERR_OK)
1510 2008-07-08 Frédéric Bernon
1511 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1512 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1514 2008-06-24 Jonathan Larmour
1515 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1516 if tcp_seg_copy fails.
1518 2008-06-17 Simon Goldschmidt
1519 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1520 and created defines for swapping bytes and folding u32 to u16.
1522 2008-05-30 Kieran Mansley
1523 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1524 rather than rcv_ann_wnd when deciding if packets are in-window.
1525 Contributed by <arasmussen@consultant.datasys.swri.edu>
1527 2008-05-30 Kieran Mansley
1528 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1529 passing as function pointers when MEM_LIBC_MALLOC is defined.
1531 2008-05-09 Jonathan Larmour
1532 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1533 stop it being treated as a fatal error.
1535 2008-04-15 Simon Goldschmidt
1536 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1539 2008-03-27 Simon Goldschmidt
1540 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1541 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1542 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1543 or heap memory from interrupt context
1545 2008-03-26 Simon Goldschmidt
1546 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1547 host sent a zero mss as TCP option.
1554 2008-03-10 Jonathan Larmour
1555 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1556 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1558 2008-01-22 Frédéric Bernon
1559 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1560 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1562 2008-01-14 Frédéric Bernon
1563 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1564 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1565 tcp_recv callback (see rawapi.txt).
1567 2008-01-14 Frédéric Bernon, Marc Chaland
1568 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1570 2008-01-12 Frédéric Bernon
1571 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1572 netconn::sem per netconn::op_completed like suggested for the task #7490
1573 "Add return value to sys_mbox_post".
1575 2008-01-12 Frédéric Bernon
1576 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1577 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1578 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1580 2008-01-10 Frédéric Bernon
1581 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1582 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1583 "blocking" ("block" parameter = 1).
1585 2008-01-10 Frédéric Bernon
1586 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1587 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1588 "Add return value to sys_mbox_post".
1590 2008-01-05 Frédéric Bernon
1591 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1592 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1593 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1594 indicate the number of pointers query by the mailbox. There is three defines
1595 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1596 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1597 parameter in your implementation, but to ignore it to keep the previous behavior.
1598 The new sys_mbox_trypost function return a value to know if the mailbox is
1599 full or if the message is posted. Take a look to sys_arch.txt for more details.
1600 This new function is used in tcpip_input (so, can be called in an interrupt
1601 context since the function is not blocking), and in recv_udp and recv_raw.
1603 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1604 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1605 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1606 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1607 documentation in the rawapi.txt file.
1609 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1610 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1612 2007-12-31 Frédéric Bernon, Luca Ceresoli
1613 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1614 in autoip". The change in etharp_raw could be removed, since all calls to
1615 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1616 wrong in the future.
1618 2007-12-30 Frédéric Bernon, Tom Evans
1619 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1620 Filtering" reported by Tom Evans.
1622 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1623 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1624 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1625 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1626 keep accepting new connections.
1628 2007-12-13 Frédéric Bernon
1629 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1630 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1632 2007-12-12 Frédéric Bernon
1633 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1634 are the one which have ram usage.
1636 2007-12-05 Frédéric Bernon
1637 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1638 set of variables (=0) or a local one (=1). In this last case, your port should
1639 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1640 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1642 2007-12-03 Simon Goldschmidt
1643 * ip.c: ip_input: check if a packet is for inp first before checking all other
1644 netifs on netif_list (speeds up packet receiving in most cases)
1646 2007-11-30 Simon Goldschmidt
1647 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1648 UDP: move a (connected) pcb selected for input to the front of the list of
1649 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1652 2007-11-28 Simon Goldschmidt
1653 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1655 2007-11-25 Simon Goldschmidt
1656 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1659 2007-11-24 Simon Goldschmidt
1660 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1661 to the new file netdb.c; included lwip_getaddrinfo.
1663 2007-11-21 Simon Goldschmidt
1664 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1665 based on the MTU of the netif used to send. Enabled by default. Disable by
1666 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1668 2007-11-19 Frédéric Bernon
1669 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1670 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1671 copy dns payload to parse the response), return an error if there is no place
1672 for a new query, and fix some minor problems.
1674 2007-11-16 Simon Goldschmidt
1675 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1676 removed files: core/inet.c, core/inet6.c
1677 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1678 inet and chksum part; changed includes in all lwIP files as appropriate
1680 2007-11-16 Simon Goldschmidt
1681 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1682 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1683 (gethostbyname/gethostbyname_r).
1685 2007-11-15 Jim Pettinato, Frédéric Bernon
1686 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1687 requests with RAW api interface. Initialization is done in lwip_init() with
1688 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1689 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1690 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1691 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1692 list with points to improve.
1694 2007-11-06 Simon Goldschmidt
1695 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1696 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1697 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1699 2007-11-06 Simon Goldschmidt
1700 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1701 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1702 implementation from netconn api applications.
1704 2007-11-03 Frédéric Bernon
1705 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1706 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1707 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1708 it. This is a first release which have to be improve for TCP. Note it used the
1709 netconn::recv_avail which need to be more "thread-safe" (note there is already
1710 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1712 2007-11-01 Frédéric Bernon, Marc Chaland
1713 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1714 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1715 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1716 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1717 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1719 2007-10-24 Frédéric Bernon
1720 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1721 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1722 some code (like we have talk in "patch #5919 : Create compile switch to remove
1723 select code"), but it could be done later.
1725 2007-10-08 Simon Goldschmidt
1726 * many files: Changed initialization: many init functions are not needed any
1727 more since we now rely on the compiler initializing global and static
1730 2007-10-06 Simon Goldschmidt
1731 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1732 to enqueue the received pbufs so that multiple packets can be reassembled
1733 simultaneously and no static reassembly buffer is needed.
1735 2007-10-05 Simon Goldschmidt
1736 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1737 all netifs (or ports) can use it.
1739 2007-10-05 Frédéric Bernon
1740 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1741 common function to reduce a little bit the footprint (for all functions using
1742 only the "netif" parameter).
1744 2007-10-03 Frédéric Bernon
1745 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1746 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1747 a little bit the footprint (for all functions using only the "netif" parameter).
1749 2007-09-15 Frédéric Bernon
1750 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1751 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1752 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1753 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1755 2007-09-10 Frédéric Bernon
1756 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1757 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1758 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1759 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1760 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1761 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1762 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1763 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1764 when it's queried (any direct call to "sysuptime" is changed by a call to
1765 snmp_get_sysuptime).
1767 2007-09-09 Frédéric Bernon, Bill Florac
1768 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1769 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1770 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1771 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1772 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1773 the next query message to receive the matching multicast streams).
1775 2007-09-08 Frédéric Bernon
1776 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1777 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1778 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1779 Enable to access to these fields with LWIP_TCP=0.
1781 2007-09-05 Frédéric Bernon
1782 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1783 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1784 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1785 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1786 help to reduce footprint, and to reduce "visibility" on the Internet.
1788 2007-09-05 Frédéric Bernon, Bill Florac
1789 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1790 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1791 parameters have to be provided: a task name, and a task stack size. For this
1792 one, since it's platform dependant, you could define the best one for you in
1793 your lwipopts.h. For port maintainers, you can just add these new parameters
1794 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1797 2007-09-05 Frédéric Bernon
1798 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1799 inside init.c for task #7142 "Sanity check user-configurable values".
1801 2007-09-04 Frédéric Bernon, Bill Florac
1802 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1803 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1804 value). It will avoid potential fragmentation problems, use a counter to know
1805 how many times a group is used on an netif, and free it when all applications
1806 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1807 check if LWIP_IGMP!=0).
1809 2007-09-03 Frédéric Bernon
1810 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1811 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1812 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1813 and/or the "interface" field (for netconn layer), for join/leave operations.
1814 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1815 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1817 2007-08-30 Frédéric Bernon
1818 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1819 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1820 with other API (application based on raw API, or future "socket2" API). Ports
1821 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1823 2007-08-30 Frédéric Bernon, Jonathan Larmour
1824 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1825 user-configurable values".
1827 2007-08-29 Frédéric Bernon
1828 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1829 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1830 spirit than the others modules. Modify some IGMP debug traces.
1832 2007-08-29 Frédéric Bernon
1833 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1834 Add lwip_init function to regroup all modules initializations, and to provide
1835 a place to add code for task #7142 "Sanity check user-configurable values".
1836 Ports maintainers should remove direct initializations calls from their code,
1837 and add init.c in their makefiles. Note that lwip_init() function is called
1838 inside tcpip_init, but can also be used by raw api users since all calls are
1839 disabled when matching options are disabled. Also note that their is new options
1840 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1842 2007-08-26 Marc Boucher
1843 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1844 since they can under certain circumstances be called with an invalid conn
1845 pointer after the connection has been closed (and conn has been freed).
1847 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1848 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1849 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1851 2007-08-22 Frédéric Bernon
1852 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1853 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1855 2007-08-22 Frédéric Bernon
1856 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1857 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1858 name is tcpip_input (we keep the name of 1.2.0 function).
1860 2007-08-17 Jared Grubb
1861 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1862 settings into new memp_std.h and optional user file lwippools.h. This adds
1863 more dynamic mempools, and allows the user to create an arbitrary number of
1864 mempools for mem_malloc.
1866 2007-08-16 Marc Boucher
1867 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1868 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1869 close the connection.
1871 2007-08-16 Marc Boucher
1872 * sockets.c: lwip_accept(): check netconn_peer() error return.
1874 2007-08-16 Marc Boucher
1875 * mem.c, mem.h: Added mem_calloc().
1877 2007-08-16 Marc Boucher
1878 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1879 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1880 and starving other message types.
1881 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1883 2007-08-16 Marc Boucher
1884 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1885 type and flgs (later renamed to flags).
1886 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1887 Improved lwip_recvfrom(). TCP push now propagated.
1889 2007-08-16 Marc Boucher
1890 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1893 2007-08-16 Marc Boucher
1894 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1895 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1896 Added PPPoE support and various PPP improvements.
1898 2007-07-25 Simon Goldschmidt
1899 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1900 making netbuf_copy_partial use this function.
1902 2007-07-25 Simon Goldschmidt
1903 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1904 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1907 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1908 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1909 a link callback in the netif struct, and functions to handle it. Be carefull
1910 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1911 if you want to be sure to be compatible with future changes...
1913 2007-06-30 Frédéric Bernon
1914 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1916 2007-06-21 Simon Goldschmidt
1917 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1918 LWIP_AUTOIP =0 and =1 to remove redundant code.
1920 2007-06-21 Simon Goldschmidt
1921 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1922 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1923 heap. This both prevents memory fragmentation and gives a higher speed
1924 at the cost of more memory consumption. Turned off by default.
1926 2007-06-21 Simon Goldschmidt
1927 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1928 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1929 int to be able to send a bigger buffer than 64K with one time (mainly
1930 used from lwip_send).
1932 2007-06-21 Simon Goldschmidt
1933 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1934 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1936 2007-06-21 Simon Goldschmidt
1937 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1938 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1939 changes on low memory or empty send-buffer.
1941 2007-06-18 Simon Goldschmidt
1942 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1943 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1944 used for ethernet and struct eth_addr already had a defined length of 6).
1946 2007-06-17 Simon Goldschmidt
1947 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1948 to disable UDP checksum generation on transmit.
1950 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1951 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1952 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1953 this macro to check "conn" parameter in api_msg.c functions.
1955 2007-06-11 Simon Goldschmidt
1956 * sockets.c, sockets.h: Added UDP lite support for sockets
1958 2007-06-10 Simon Goldschmidt
1959 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1960 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1963 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1964 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1965 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1966 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1967 (see TODO mark in the source code).
1969 2007-06-09 Simon Goldschmidt
1970 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1971 etharp_output() to match netif->output so etharp_output() can be used
1972 directly as netif->output to save one function call.
1974 2007-06-08 Simon Goldschmidt
1975 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1976 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1977 added initialization of those to ethernetif, slipif and loopif.
1979 2007-05-18 Simon Goldschmidt
1980 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1981 (defaulting to off for now) that can be set to 0 to send fragmented
1982 packets by passing PBUF_REFs down the stack.
1984 2007-05-23 Frédéric Bernon
1985 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1986 connections, such present in patch #5959.
1988 2007-05-23 Frédéric Bernon
1989 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1990 code in only one part...
1992 2007-05-18 Simon Goldschmidt
1993 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1994 elements to overflow. This is achieved by adding some bytes before and after
1995 each pool element (increasing their size, of course), filling them with a
1996 prominent value and checking them on freeing the element.
1997 Set it to 2 to also check every element in every pool each time memp_malloc()
1998 or memp_free() is called (slower but more helpful).
2000 2007-05-10 Simon Goldschmidt
2001 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
2002 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
2005 2007-05-11 Frédéric Bernon
2006 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
2007 Include a function pointer instead of a table index in the message to reduce
2008 footprint. Disable some part of lwip_send and lwip_sendto if some options are
2009 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
2011 2007-05-10 Simon Goldschmidt
2012 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
2013 \ extern "C" {' in all header files. Now you can write your application using
2014 the lwIP stack in C++ and simply #include the core files. Note I have left
2015 out the netif/ppp/*h header files for now, since I don't know which files are
2016 included by applications and which are for internal use only.
2018 2007-05-09 Simon Goldschmidt
2019 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
2020 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
2021 situations where some compilers might inline the copy and save a function
2022 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
2024 2007-05-08 Simon Goldschmidt
2025 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
2026 to be overriden in case the C-library malloc implementation is not protected
2027 against concurrent access.
2029 2007-05-04 Simon Goldschmidt (Atte Kojo)
2030 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
2031 multiple packets to the same host.
2033 2007-05-04 Frédéric Bernon, Jonathan Larmour
2034 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2035 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2036 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2037 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2038 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2039 these fields are now renamed "addr" & "port".
2041 2007-04-11 Jonathan Larmour
2042 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2043 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2044 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2045 by the port in sys_arch.h if desired.
2047 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2048 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2049 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2050 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2052 2007-04-05 Frédéric Bernon
2053 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2055 2007-04-04 Simon Goldschmidt
2056 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2057 use this for and architecture-independent form to tell the compiler you intentionally
2058 are not using this variable. Can be overriden in cc.h.
2060 2007-03-28 Frédéric Bernon
2061 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2062 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2063 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2064 It will be used by DHCP to register a client hostname, but can also be use when you call
2067 2007-03-28 Frédéric Bernon
2068 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2069 initialize a network interface's flag with. It tell this interface is an ethernet
2070 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2071 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2073 2007-03-26 Frédéric Bernon, Jonathan Larmour
2074 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2075 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2076 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2077 is done in tcpip_init function.
2079 2007-03-22 Frédéric Bernon
2080 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2081 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2082 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2083 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2084 but never used. Fix msg_in.c with the correct #if test for a stat display.
2086 2007-03-21 Kieran Mansley
2087 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2088 Provides callback on netif up/down state change.
2090 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2091 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2092 ip.c, netif.h, tcpip.c, opt.h:
2093 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2094 filter per all network interfaces. Declare a new function in netif to enable to
2095 control the MAC filter (to reduce lwIP traffic processing).
2097 2007-03-11 Frédéric Bernon
2098 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2099 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2100 unless you know what you're doing (default are RFC1122 compliant). Note
2101 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2103 2007-03-08 Frédéric Bernon
2104 * tcp.h: Keepalive values can be configured at compile time, but don't change
2105 this unless you know what you're doing (default are RFC1122 compliant).
2107 2007-03-08 Frédéric Bernon
2108 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2109 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2110 on UDP sockets/netconn.
2112 2007-03-08 Simon Goldschmidt
2113 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2115 2007-03-06 Frédéric Bernon
2116 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2117 Implement SO_RCVTIMEO on UDP sockets/netconn.
2119 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2120 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2121 on the stack and remove the API msg type from memp
2123 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2124 * sockets.h, sockets.c: Move socket initialization to new
2125 lwip_socket_init() function.
2126 NOTE: this changes the API with ports. Ports will have to be
2127 updated to call lwip_socket_init() now.
2129 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2130 * api_lib.c: Use memcpy in netbuf_copy_partial.
2135 2008-03-17 Frédéric Bernon, Ed Kerekes
2136 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2137 some problems to fill the IP header on some targets, use now the
2138 ip.h macros to do it).
2140 2008-03-13 Frédéric Bernon
2141 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2142 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2143 TCP connection caused a crash. Note that using (lwip_)recvfrom
2144 like this is a bit slow and that using (lwip)getpeername is the
2145 good lwip way to do it (so, using recv is faster on tcp sockets).
2147 2008-03-12 Frédéric Bernon, Jonathan Larmour
2148 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2149 recv_raw() does not consume data", and the ping sample (with
2150 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2151 returned the IP payload, without the IP header).
2153 2008-03-04 Jonathan Larmour
2154 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2155 and/or warnings on some systems where mem_size_t and size_t differ.
2156 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2158 2008-03-04 Kieran Mansley (contributions by others)
2159 * Numerous small compiler error/warning fixes from contributions to
2160 mailing list after 1.3.0 release candidate made.
2162 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2163 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2165 2008-01-15 Kieran Mansley
2166 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2167 prevented from sending by a small send window, not just a zero
2170 2008-01-09 Jonathan Larmour
2171 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2172 conflict with Linux system headers.
2174 2008-01-06 Jonathan Larmour
2175 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2176 address entirely on receiving a DHCPNAK, and restarting discovery.
2178 2007-12-21 Simon Goldschmidt
2179 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2180 is not protected" by using new macros for interlocked access to modify/test
2181 netconn->recv_avail.
2183 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2184 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2186 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2187 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2188 of silly window avoidance and prevent lwIP from shrinking the window)
2190 2007-12-04 Simon Goldschmidt
2191 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2192 data packet was lost): add assert that all segment lists are empty in
2193 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2194 state from LAST_ACK in tcp_process
2196 2007-12-02 Simon Goldschmidt
2197 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2198 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2199 has to be set to 0 in lwipopts.h
2201 2007-12-02 Simon Goldschmidt
2202 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2203 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2204 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2205 This is a fix for thread-safety and allocates all items needed for a netconn
2206 when the netconn is created.
2208 2007-11-30 Simon Goldschmidt
2209 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2210 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2211 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2212 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2214 2007-11-27 Simon Goldschmidt
2215 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2216 letting ip_route only use netifs that are up.
2218 2007-11-27 Simon Goldschmidt
2219 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2220 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2221 sockets block most operations once they have seen a fatal error.
2223 2007-11-27 Simon Goldschmidt
2224 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2225 netif to send as an argument (to be able to send on netifs that are down).
2227 2007-11-26 Simon Goldschmidt
2228 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2231 2007-11-21 Simon Goldschmidt
2232 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2233 Fixed the nagle algorithm; nagle now also works for all raw API applications
2234 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2236 2007-11-12 Frédéric Bernon
2237 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2238 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2239 context in do_getaddr.
2241 2007-11-10 Simon Goldschmidt
2242 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2243 happen any time). Now the packet simply isn't enqueued when out of memory.
2245 2007-11-01 Simon Goldschmidt
2246 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2247 TCP_MSS if that is smaller) as long as no MSS option is received from the
2250 2007-11-01 Simon Goldschmidt
2251 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2252 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2253 sending our configured TCP_MSS instead of the one received).
2255 2007-11-01 Simon Goldschmidt
2256 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2257 calculated based on the configured TCP_MSS, not on the MSS option received
2260 2007-10-09 Simon Goldschmidt
2261 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2262 short and also was generated wrong if checksum coverage != tot_len;
2263 receive: checksum was calculated wrong if checksum coverage != tot_len
2265 2007-10-08 Simon Goldschmidt
2266 * mem.c: lfree was not updated in mem_realloc!
2268 2007-10-07 Frédéric Bernon
2269 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2270 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2271 this change cause an API breakage for netconn_addr, since a parameter
2272 type change. Any compiler should cause an error without any changes in
2273 yours netconn_peer calls (so, it can't be a "silent change"). It also
2274 reduce a little bit the footprint for socket layer (lwip_getpeername &
2275 lwip_getsockname use now a common lwip_getaddrname function since
2276 netconn_peer & netconn_addr have the same parameters).
2278 2007-09-20 Simon Goldschmidt
2279 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2280 by checking tcp_tw_pcbs also
2282 2007-09-19 Simon Goldschmidt
2283 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2285 2007-09-15 Mike Kleshov
2286 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2288 2007-09-06 Frédéric Bernon
2289 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2290 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2291 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2292 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2294 2007-08-30 Frédéric Bernon
2295 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2296 and fix some coding style.
2298 2007-08-28 Frédéric Bernon
2299 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2300 kind of packets. These packets are considered like Ethernet packets (payload
2301 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2302 are considered like IP packets (payload pointing to iphdr).
2304 2007-08-27 Frédéric Bernon
2305 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2306 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2307 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2309 2007-08-24 Kieran Mansley
2310 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2311 compiler (Paradigm C++)
2313 2007-08-09 Frédéric Bernon, Bill Florac
2314 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2315 Introduce IGMP_STATS to centralize statistics management.
2317 2007-08-09 Frédéric Bernon, Bill Florac
2318 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2319 packet on a udp pcb binded on an netif's IP address, and not on "any".
2321 2007-08-09 Frédéric Bernon, Bill Florac
2322 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2323 This is mainly on using lookup/lookfor, and some coding styles...
2325 2007-07-26 Frédéric Bernon (and "thedoctor")
2326 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2328 2007-07-25 Simon Goldschmidt
2329 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2330 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2331 (tcp_output is called again later from tcp timers).
2333 2007-07-25 Simon Goldschmidt
2334 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2335 copy_from_pbuf, which illegally modified the given pbuf.
2337 2007-07-25 Simon Goldschmidt
2338 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2339 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2341 2007-07-24 Simon Goldschmidt
2342 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2343 correct state (must be CLOSED).
2345 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2346 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2347 allocation. It now returns NULL.
2349 2007-07-13 Frédéric Bernon
2350 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2353 2007-07-13 Frédéric Bernon
2354 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2355 because current code doesn't follow rawapi.txt documentation.
2357 2007-07-13 Kieran Mansley
2358 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2359 out of sequence processing of received packets
2361 2007-07-03 Simon Goldschmidt
2362 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2363 assumption is made that this pbuf is in one piece (i.e. not chained). These
2364 assumptions clash with the possibility of converting to fully pool-based
2365 pbuf implementations, where PBUF_RAM pbufs might be chained.
2367 2007-07-03 Simon Goldschmidt
2368 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2369 when closing tcp netconns: removed conn->sem, less context switches when
2370 closing, both netconn_close and netconn_delete should safely close tcp
2373 2007-07-02 Simon Goldschmidt
2374 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2375 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2376 to cache ARP table indices with each pcb instead of single-entry cache for
2379 2007-07-02 Simon Goldschmidt
2380 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2381 warnings when assigning to smaller types.
2383 2007-06-28 Simon Goldschmidt
2384 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2386 2007-06-28 Simon Goldschmidt
2387 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2388 a segment contained chained pbufs)
2390 2007-06-28 Frédéric Bernon
2391 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2392 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2393 possible to define this macro in your own lwipopts.h to always use C library's
2394 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2396 2007-06-28 Frédéric Bernon
2397 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2398 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2399 in api_lib/api_msg (use pointers and not type with table, etc...)
2401 2007-06-26 Simon Goldschmidt
2402 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2404 2007-06-25 Simon Goldschmidt
2405 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2406 for udp packets with no matching pcb.
2408 2007-06-25 Simon Goldschmidt
2409 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2410 could get udp input packets if the remote side matched.
2412 2007-06-13 Simon Goldschmidt
2413 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2414 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2416 2007-06-13 Simon Goldschmidt
2417 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2418 -> netconn_new_..() does not allocate a new connection for unsupported
2421 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2422 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2423 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2425 2007-06-13 Frédéric Bernon, Matthias Weisser
2426 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2427 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2428 some macro names collision with some OS macros.
2430 2007-06-11 Simon Goldschmidt
2431 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2432 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2433 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2436 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2437 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2438 where TCP flags wasn't initialized in tcp_keepalive.
2440 2007-06-03 Simon Goldschmidt
2441 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2442 registered, p->payload was modified without modifying p->len if sending
2443 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2445 2007-06-03 Simon Goldschmidt
2446 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2447 re-used the input pbuf even if that didn't have enough space to include the
2448 link headers. Now the space is tested and a new pbuf is allocated for the
2449 echo response packet if the echo request pbuf isn't big enough.
2451 2007-06-01 Simon Goldschmidt
2452 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2454 2007-05-23 Frédéric Bernon
2455 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2456 allocated by do_listen if success) and netconn_accept errors handling. In
2457 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2458 by ASSERT, except for netconn_delete.
2460 2007-05-23 Frédéric Bernon
2461 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2462 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2463 directly close the recvmbox).
2465 2007-05-22 Simon Goldschmidt
2466 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2467 bound but unconnected (and non-listening) tcp_pcbs.
2469 2007-05-22 Frédéric Bernon
2470 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2471 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2472 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2473 like "sys_timeout" in their application threads.
2475 2007-05-22 Frédéric Bernon
2476 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2477 which parameters are used by which do_xxx function, and to avoid "misusing"
2478 parameters (patch #5938).
2480 2007-05-22 Simon Goldschmidt
2481 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2482 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2483 is only 8 bits wide. This affects the api, as there, the protocol was
2486 2007-05-18 Simon Goldschmidt
2487 * memp.c: addition to patch #5913: smaller pointer was returned but
2488 memp_memory was the same size -> did not save memory.
2490 2007-05-16 Simon Goldschmidt
2491 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2494 2007-05-16 Simon Goldschmidt
2495 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2496 as the one of the netif used for sending to prevent sending from old
2497 addresses after a netif address gets changed (partly fixes bug #3168).
2499 2007-05-16 Frédéric Bernon
2500 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2501 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2502 tcpip_init) because we have to be sure that network interfaces are already
2503 added (mac filter is updated only in igmp_init for the moment).
2505 2007-05-16 Simon Goldschmidt
2506 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2507 into sys_arch_sem_wait calls to prevent timers from running while waiting
2508 for the heap. This fixes bug #19167.
2510 2007-05-13 Simon Goldschmidt
2511 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2512 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2515 2007-05-07 Simon Goldschmidt
2516 * mem.c: Another attempt to fix bug #17922.
2518 2007-05-04 Simon Goldschmidt
2519 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2520 implementation so that it can be reused (don't allocate the target
2521 pbuf inside pbuf_copy()).
2523 2007-05-04 Simon Goldschmidt
2524 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2525 to save a little RAM (next pointer of memp is not used while not in pool).
2528 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2531 2007-04-23 Simon Goldschmidt
2532 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2533 in NULL reference for incoming TCP packets". Loopif has to be configured
2534 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2535 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2536 putting packets on a list that is fed to the stack by calling loopif_poll()
2537 (single-thread / NO_SYS / polling environment where e.g.
2538 netif->input() = ip_input).
2540 2007-04-17 Jonathan Larmour
2541 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2542 the difference between two u16_t's.
2543 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2544 MEMP_NUM_NETCONN in sockets.c right now.
2546 2007-04-12 Jonathan Larmour
2547 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2549 2007-04-12 Kieran Mansley
2550 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2551 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2553 2007-04-11 Simon Goldschmidt
2554 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2555 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2556 pbuf.c: removed functions no needed any more (by etharp).
2558 2007-04-11 Kieran Mansley
2559 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2560 "Constant is long" warnings with 16bit compilers. Contributed by
2561 avatar@mmlab.cse.yzu.edu.tw
2563 2007-04-05 Frédéric Bernon, Jonathan Larmour
2564 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2565 the mailbox is active". Now, the post is only done during a connect, and do_send,
2566 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2568 2007-04-03 Frédéric Bernon
2569 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2570 packets. See patch #5834.
2572 2007-03-30 Frédéric Bernon
2573 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2574 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2576 2007-03-30 Frédéric Bernon
2577 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2578 others environment defines (these were too "generic").
2580 2007-03-28 Frédéric Bernon
2581 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2582 result and can cause a crash. lwip_send now check netbuf_ref result.
2584 2007-03-28 Simon Goldschmidt
2585 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2586 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2587 defined. This is the way it should have been already (looking at
2590 2007-03-28 Kieran Mansley
2591 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2592 IP and TCP headers *and* physical link headers
2594 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2595 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2596 to send some garbage. It is not a definitive solution, but the patch does solve
2597 the problem for most cases.
2599 2007-03-22 Frédéric Bernon
2600 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2602 2007-03-22 Frédéric Bernon
2603 * api_lib.c: somes resources couldn't be freed if there was errors during
2604 netconn_new_with_proto_and_callback.
2606 2007-03-22 Frédéric Bernon
2607 * ethernetif.c: update netif->input calls to check return value. In older ports,
2608 it's a good idea to upgrade them, even if before, there could be another problem
2609 (access to an uninitialized mailbox).
2611 2007-03-21 Simon Goldschmidt
2612 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2613 by casting to unsigned).
2615 2007-03-21 Frédéric Bernon
2616 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2617 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2618 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2619 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2620 faster and more reliable communication between api_lib and tcpip.
2622 2007-03-21 Frédéric Bernon
2623 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2625 2007-03-21 Frédéric Bernon
2626 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2628 2007-03-21 Kieran Mansley
2629 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2632 2007-03-21 Kieran Mansley
2633 * Fix all uses of pbuf_header to check the return value. In some
2634 cases just assert if it fails as I'm not sure how to fix them, but
2635 this is no worse than before when they would carry on regardless
2638 2007-03-21 Kieran Mansley
2639 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2640 comment out missing header include in icmp.c
2642 2007-03-20 Frédéric Bernon
2643 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2644 synchronized with memp.h.
2646 2007-03-20 Frédéric Bernon
2647 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2648 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2649 network interfaces. Also fix a compiler warning.
2651 2007-03-20 Kieran Mansley
2652 * udp.c: Only try and use pbuf_header() to make space for headers if
2653 not a ROM or REF pbuf.
2655 2007-03-19 Frédéric Bernon
2656 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2659 2007-03-19 Frédéric Bernon
2660 * Remove unimplemented "memp_realloc" function from memp.h.
2662 2007-03-11 Simon Goldschmidt
2663 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2666 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2667 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2668 (missing `const' qualifier in socket functions), to get more compatible to
2669 standard POSIX sockets.
2671 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2672 * sockets.c: Add asserts inside bind, connect and sendto to check input
2673 parameters. Remove excessive set_errno() calls after get_socket(), because
2674 errno is set inside of get_socket(). Move last sock_set_errno() inside
2677 2007-03-09 Simon Goldschmidt
2678 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2679 was allocated too small.
2681 2007-03-06 Simon Goldschmidt
2682 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2683 the stack from concurrent access.
2685 2007-03-06 Frédéric Bernon, Dmitry Potapov
2686 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2687 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2689 2007-03-06 Simon Goldschmidt
2690 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2691 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2693 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2694 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2695 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2696 Allow to do ARP processing for incoming packets inside tcpip_thread
2697 (protecting ARP layer against concurrent access). You can also disable
2698 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2699 Older ports have to use tcpip_ethinput.
2701 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2702 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2703 from pointer target type"
2705 2007-03-05 Frédéric Bernon
2706 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2707 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2709 2007-03-04 Frédéric Bernon
2710 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2713 2007-03-04 Frédéric Bernon
2714 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2716 The api_msg struct stay on the stack (not moved to netconn struct).
2718 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2719 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2720 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2721 Also fixed cast warning in pbuf_alloc()
2723 2007-03-04 Simon Goldschmidt
2724 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2725 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2727 2007-03-03 Frédéric Bernon
2728 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2729 It is static, and never used in udp.c except udp_init().
2731 2007-03-02 Simon Goldschmidt
2732 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2733 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2734 initialized before tcpip_thread is running (e.g. before OS is started)
2736 2007-03-02 Frédéric Bernon
2737 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2740 2007-02-28 Kieran Mansley
2741 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2742 outside the region of the pbuf by pbuf_header()
2744 2007-02-28 Kieran Mansley
2745 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2746 when supplied timeout is also non-zero
2750 2006-12-05 Leon Woestenberg
2751 * CHANGELOG: Mention STABLE-1.2.0 release.
2755 2006-12-01 Christiaan Simons
2756 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2757 Note this is a workaround. Currently I have no other options left.
2759 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2760 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2761 to include/lwip/opt.h.
2762 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2763 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2764 * opt.h: Add above new options.
2766 2006-08-18 Christiaan Simons
2767 * tcp_{in,out}.c: added SNMP counters.
2768 * ipv4/ip.c: added SNMP counters.
2769 * ipv4/ip_frag.c: added SNMP counters.
2771 2006-08-08 Christiaan Simons
2772 * etharp.{c,h}: added etharp_find_addr() to read
2773 (stable) ethernet/IP address pair from ARP table
2775 2006-07-14 Christiaan Simons
2776 * mib_structs.c: added
2777 * include/lwip/snmp_structs.h: added
2778 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2780 2006-07-06 Christiaan Simons
2781 * snmp/asn1_{enc,dec}.c added
2783 * snmp/msg_{in,out}.c added
2784 * include/lwip/snmp_asn1.h added
2785 * include/lwip/snmp_msg.h added
2786 * doc/snmp_agent.txt added
2788 2006-03-29 Christiaan Simons
2789 * inet.c, inet.h: Added platform byteswap support.
2790 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2791 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2795 2006-11-30 Christiaan Simons
2796 * dhcp.c: Fixed false triggers of request_timeout.
2798 2006-11-28 Christiaan Simons
2799 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2801 2006-10-11 Christiaan Simons
2802 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2803 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2804 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2805 identifier from 170 to 136 (bug #17574).
2807 2006-10-10 Christiaan Simons
2808 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2810 2006-08-17 Christiaan Simons
2811 * udp.c: Fixed bug #17200, added check for broadcast
2812 destinations for PCBs bound to a unicast address.
2814 2006-08-07 Christiaan Simons
2815 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2817 2006-06-27 Christiaan Simons
2818 * api_msg.c: Applied patch for cold case (bug #11135).
2819 In accept_function() ensure newconn->callback is always initialized.
2821 2006-06-15 Christiaan Simons
2822 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2823 facilitate printing of mem_size_t and u16_t statistics.
2825 2006-06-14 Christiaan Simons
2826 * api_msg.c: Applied patch #5146 to handle allocation failures
2827 in accept() by Kevin Lawson.
2829 2006-05-26 Christiaan Simons
2830 * api_lib.c: Removed conn->sem creation and destruction
2831 from netconn_write() and added sys_sem_new to netconn_new_*.
2835 2006-03-03 Christiaan Simons
2836 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2837 access and added pbuf_alloc() return value checks.
2839 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2840 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2841 now handled by the checksum routine properly.
2843 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2844 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2845 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2847 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2848 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2849 submitted by Mitrani Hiroshi.
2851 2005-12-15 Christiaan Simons
2852 * inet.c: Disabled the added summing routine to preserve code space.
2854 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2855 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2856 Added Curt McDowell's optimized checksumming routine for future
2857 inclusion. Need to create test case for unaliged, aligned, odd,
2858 even length combination of cases on various endianess machines.
2860 2005-12-09 Christiaan Simons
2861 * inet.c: Rewrote standard checksum routine in proper portable C.
2863 2005-11-25 Christiaan Simons
2864 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2865 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2866 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2868 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2869 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2870 routine by Peter Jolasson.
2871 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2873 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2874 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2875 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2877 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2878 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2880 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2881 * udp.c: UDP pcb->recv() was called even when it was NULL.
2885 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2886 * etharp.*: Disabled multiple packets on the ARP queue.
2887 This clashes with TCP queueing.
2889 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2890 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2891 Halved the ARP period, doubled the period counts.
2892 ETHARP_MAX_PENDING now should be at least 2. This prevents
2893 the counter from reaching 0 right away (which would allow
2894 too little time for ARP responses to be received).
2896 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2897 * dhcp.c: Decline messages were not multicast but unicast.
2898 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2899 Do not try hard to insert arbitrary packet's source address,
2900 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2901 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2902 querying an address will see it appear in the cache (DHCP could
2903 suffer from this when a server invalidly gave an in-use address.)
2904 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2905 comparing network addresses (identifiers), not the network masks
2907 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2908 IP address actually belongs to the network of the given interface.
2910 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2911 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2915 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2916 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2917 even if one is already pending, if the rcv_wnd is above a threshold
2918 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2919 delayed ACK in order to open the window if the stack is only receiving data.
2921 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2922 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2924 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2925 * etharp.c: Make sure the first pbuf queued on an ARP entry
2926 is properly ref counted.
2928 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2929 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2930 warnings about comparison.
2931 * pbuf.c: Stopped compiler complaining of empty if statement
2932 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2933 * tcp.c: Stopped compiler complaining of empty if statement
2934 when LWIP_DEBUGF() empty.
2935 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2936 * inet.c: Added a couple of casts to quiet the compiler.
2937 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2939 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2940 * inet.c: Made data types consistent in inet_ntoa().
2941 Added casts for return values of checksum routines, to pacify compiler.
2942 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2943 Small corrections to some debugging statements, to pacify compiler.
2945 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2946 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2947 * ethernetif.c Updated low_level_output() to match prototype for
2948 netif->linkoutput and changed low_level_input() similarly for consistency.
2949 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2950 of raw_recv() in raw.h and so avoid compiler error.
2951 * sockets.c: Added trivial (int) cast to keep compiler happier.
2952 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2958 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2959 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2960 your cc.h file defines this either 1 or 0. If non-defined,
2962 * .c: Added <string.h> and <errno.h> includes where used.
2963 * etharp.c: Made some array indices unsigned.
2965 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2966 * netif.*: Added netif_set_up()/down().
2967 * dhcp.c: Changes to restart program flow.
2969 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2970 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2971 single-pass lookup for different candidates. Should exploit locality.
2973 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2974 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2975 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2976 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2977 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2981 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2982 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2983 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2984 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2985 is to prefix the 14-bit Ethernet headers with two padding bytes.
2987 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2988 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2989 * etharp.c: Fixed the case where the packet that initiates the ARP request
2990 is not queued, and gets lost. Fixed the case where the packets destination
2991 address is already known; we now always queue the packet and perform an ARP
2998 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2999 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
3000 * Fixed two possible NULL references in rare cases.
3006 * Fixed DHCP which did not include the IP address in DECLINE messages.
3010 * etharp.c has been hauled over a bit.
3016 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
3017 * Packets sent from ARP queue had invalid source hardware address.
3021 * Pass-by ARP requests do now update the cache.
3025 * No longer dependent on ctype.h.
3026 * New socket options.
3027 * Raw IP pcb support.
3033 * Some debug formatters and casts fixed.
3034 * Numereous fixes in PPP.
3038 * DEBUGF now is LWIP_DEBUGF
3039 * pbuf_dechain() has been re-enabled.
3040 * Mentioned the changed use of CVS branches in README.
3046 * Fixed pool pbuf memory leak in pbuf_alloc().
3047 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3048 Reported by Savin Zlobec.
3050 * PBUF_POOL chains had their tot_len field not set for non-first
3051 pbufs. Fixed in pbuf_alloc().
3055 * Added PPP stack contributed by Marc Boucher
3059 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3061 * ARP queueuing now queues the latest packet instead of the first.
3062 This is the RFC recommended behaviour, but can be overridden in
3069 * TCP has been fixed to deal with the new use of the pbuf->ref
3072 * DHCP dhcp_inform() crash bug fixed.
3076 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3077 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3078 Implemented by David Haas.
3084 * The packet buffer implementation has been enhanced to support
3085 zero-copy and copy-on-demand for packet buffers which have their
3086 payloads in application-managed memory.
3087 Implemented by David Haas.
3089 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3090 if an outgoing packet can be directly sent on the link, or perform
3091 a copy-on-demand when necessary.
3093 The application can safely assume the packet is sent, and the RAM
3094 is available to the application directly after calling udp_send()
3095 or similar function.
3099 * ARP_QUEUEING should now correctly work for all cases, including
3101 Implemented by Leon Woestenberg.
3105 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3106 to a '0.0.0.0' IP address.
3108 * The packet buffer implementation is changed. The pbuf->ref counter
3109 meaning has changed, and several pbuf functions have been
3110 adapted accordingly.
3112 * netif drivers have to be changed to set the hardware address length field
3113 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3114 See the contrib/ports/c16x cs8900 driver as a driver example.
3116 * netif's have a dhcp field that must be initialized to NULL by the driver.
3117 See the contrib/ports/c16x cs8900 driver as a driver example.
3119 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3120 logged in CVS but have not been explained here.
3122 (0.5.3) Changes since version 0.5.2
3126 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3127 threads because it wasn't protected by semaphores.
3131 * struct ip_addr now packed.
3133 * The name of the time variable in arp.c has been changed to ctime
3134 to avoid conflicts with the time() function.
3136 (0.5.2) Changes since version 0.5.1
3140 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3144 * A bug in tcp_parseopt() could cause the stack to hang because of a
3145 malformed TCP option.
3147 * The address of new connections in the accept() function in the BSD
3148 socket library was not handled correctly.
3150 * pbuf_dechain() did not update the ->tot_len field of the tail.
3152 * Aborted TCP connections were not handled correctly in all
3157 * All protocol header structs are now packed.
3159 * The ->len field in the tcp_seg structure now counts the actual
3160 amount of data, and does not add one for SYN and FIN segments.
3162 (0.5.1) Changes since version 0.5.0
3166 * Possible to run as a user process under Linux.
3168 * Preliminary support for cross platform packed structs.
3170 * ARP timer now implemented.
3174 * TCP output queue length was badly initialized when opening
3177 * TCP delayed ACKs were not sent correctly.
3179 * Explicit initialization of BSS segment variables.
3181 * read() in BSD socket library could drop data.
3183 * Problems with memory alignment.
3185 * Situations when all TCP buffers were used could lead to
3188 * TCP MSS option wasn't parsed correctly.
3190 * Problems with UDP checksum calculation.
3192 * IP multicast address tests had endianess problems.
3194 * ARP requests had wrong destination hardware address.
3198 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3200 * A ->linkoutput() member was added to struct netif.
3202 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3204 * ntoh* macros are now null definitions for big endian CPUs.
3206 (0.5.0) Changes since version 0.4.2
3210 * Redesigned operating system emulation layer to make porting easier.
3212 * Better control over TCP output buffers.
3214 * Documenation added.
3218 * Locking issues in buffer management.
3220 * Bugfixes in the sequential API.
3222 * IP forwarding could cause memory leakage. This has been fixed.
3226 * Directory structure somewhat changed; the core/ tree has been
3229 (0.4.2) Changes since version 0.4.1
3233 * Experimental ARP implementation added.
3235 * Skeleton Ethernet driver added.
3237 * Experimental BSD socket API library added.
3241 * In very intense situations, memory leakage could occur. This has
3246 * Variables named "data" and "code" have been renamed in order to
3247 avoid name conflicts in certain compilers.
3249 * Variable++ have in appliciable cases been translated to ++variable
3250 since some compilers generate better code in the latter case.
3252 (0.4.1) Changes since version 0.4
3256 * TCP: Connection attempts time out earlier than data
3257 transmissions. Nagle algorithm implemented. Push flag set on the
3258 last segment in a burst.
3260 * UDP: experimental support for UDP-Lite extensions.
3264 * TCP: out of order segments were in some cases handled incorrectly,
3265 and this has now been fixed. Delayed acknowledgements was broken
3266 in 0.4, has now been fixed. Binding to an address that is in use
3267 now results in an error. Reset connections sometimes hung an
3268 application; this has been fixed.
3270 * Checksum calculation sometimes failed for chained pbufs with odd
3271 lengths. This has been fixed.
3273 * API: a lot of bug fixes in the API. The UDP API has been improved
3274 and tested. Error reporting and handling has been
3275 improved. Logical flaws and race conditions for incoming TCP
3276 connections has been found and removed.
3278 * Memory manager: alignment issues. Reallocating memory sometimes
3279 failed, this has been fixed.
3281 * Generic library: bcopy was flawed and has been fixed.
3285 * API: all datatypes has been changed from generic ones such as
3286 ints, to specified ones such as u16_t. Functions that return
3287 errors now have the correct type (err_t).
3289 * General: A lot of code cleaned up and debugging code removed. Many
3290 portability issues have been fixed.
3292 * The license was changed; the advertising clause was removed.
3296 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3297 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3300 (0.4) Changes since version 0.3.1
3302 * Memory management has been radically changed; instead of
3303 allocating memory from a shared heap, memory for objects that are
3304 rapidly allocated and deallocated is now kept in pools. Allocation
3305 and deallocation from those memory pools is very fast. The shared
3306 heap is still present but is used less frequently.
3308 * The memory, memory pool, and packet buffer subsystems now support
3309 4-, 2-, or 1-byte alignment.
3311 * "Out of memory" situations are handled in a more robust way.
3313 * Stack usage has been reduced.
3315 * Easier configuration of lwIP parameters such as memory usage,
3316 TTLs, statistics gathering, etc. All configuration parameters are
3317 now kept in a single header file "lwipopts.h".
3319 * The directory structure has been changed slightly so that all
3320 architecture specific files are kept under the src/arch
3323 * Error propagation has been improved, both in the protocol modules
3326 * The code for the RTXC architecture has been implemented, tested
3329 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3330 the Internet checksum modules.
3332 * Bugs related to porting between a 32-bit and a 16-bit architecture
3333 have been found and corrected.
3335 * The license has been changed slightly to conform more with the
3336 original BSD license, including the advertisement clause.
3338 (0.3.1) Changes since version 0.3
3340 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3341 RAM never returned the RAM when the pbuf was deallocated.
3343 * TCP congestion control, window updates and retransmissions did not
3344 work correctly. This has now been fixed.
3346 * Bugfixes in the API.
3348 (0.3) Changes since version 0.2
3350 * New and improved directory structure. All include files are now
3351 kept in a dedicated include/ directory.
3353 * The API now has proper error handling. A new function,
3354 netconn_err(), now returns an error code for the connection in
3357 * Improvements in the memory management subsystem. The system now
3358 keeps a pointer to the lowest free memory block. A new function,
3359 mem_malloc2() tries to allocate memory once, and if it fails tries
3360 to free some memory and retry the allocation.
3362 * Much testing has been done with limited memory
3363 configurations. lwIP now does a better job when overloaded.
3365 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3367 * Many bugfixes in the TCP code:
3369 - Fixed a bug in tcp_close().
3371 - The TCP receive window was incorrectly closed when out of
3372 sequence segments was received. This has been fixed.
3374 - Connections are now timed-out of the FIN-WAIT-2 state.
3376 - The initial congestion window could in some cases be too
3377 large. This has been fixed.
3379 - The retransmission queue could in some cases be screwed up. This
3382 - TCP RST flag now handled correctly.
3384 - Out of sequence data was in some cases never delivered to the
3385 application. This has been fixed.
3387 - Retransmitted segments now contain the correct acknowledgment
3388 number and advertised window.
3390 - TCP retransmission timeout backoffs are not correctly computed
3391 (ala BSD). After a number of retransmissions, TCP now gives up
3394 * TCP connections now are kept on three lists, one for active
3395 connections, one for listening connections, and one for
3396 connections that are in TIME-WAIT. This greatly speeds up the fast
3397 timeout processing for sending delayed ACKs.
3399 * TCP now provides proper feedback to the application when a
3400 connection has been successfully set up.
3402 * More comments have been added to the code. The code has also been
3403 somewhat cleaned up.
3405 (0.2) Initial public release.