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 2012-08-13: Simon Goldschmidt
84 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
85 configured but no interfaces available
87 2012-08-13: Simon Goldschmidt
88 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
90 2012-05-11: Simon Goldschmidt (patch by Marty)
91 * memp.c: fixed bug #36412: memp.c does not compile when
92 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
94 2012-05-08: Simon Goldschmidt
95 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
96 a debug-check issue only)
98 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
99 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
102 2012-05-03: Simon Goldschmidt (patch by David Empson)
103 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
106 2012-03-27: Simon Goldschmidt
107 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
109 2012-03-27: Simon Goldschmidt (patch by Mason)
110 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
113 2012-03-25: Simon Goldschmidt
114 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
115 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
117 2012-03-25: Simon Goldschmidt
118 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
119 pollution in api_msg.c and netifapi.c
121 2012-03-22: Simon Goldschmidt
122 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
124 2012-03-20: Simon Goldschmidt (patch by Mason)
125 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
127 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
128 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
129 possible bug on little endian system
131 2012-02-23: Simon Goldschmidt
132 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
133 (introduced when fixing bug# 33551)
135 2012-02-16: Simon Goldschmidt
136 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
137 (bug #35541: PPP Memory Leak)
139 2012-02-16: Simon Goldschmidt
140 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
141 (introduced when fixing bug# 33551)
143 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
144 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
146 2012-02-15: Simon Goldschmidt
147 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
150 2012-02-12: Simon Goldschmidt
151 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
152 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
154 2012-02-11: Simon Goldschmidt
155 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
158 2012-01-22: Simon Goldschmidt
159 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
161 2012-01-21: Simon Goldschmidt
162 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
164 2012-01-20: Simon Goldschmidt
165 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
167 2012-01-20: Simon Goldschmidt
168 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
170 2011-11-25: Simon Goldschmidt
171 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
172 tcp_active_pcbs in some cases
174 2011-11-23: Simon Goldschmidt
175 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
178 2011-11-22: Simon Goldschmidt
179 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
180 netif is brought down
182 2011-10-28: Simon Goldschmidt
183 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
185 2011-10-23: Simon Goldschmidt
186 * mem.c: fixed bug #34429: possible memory corruption with
187 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
189 2011-10-18: Simon Goldschmidt
190 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
193 2011-10-18: Simon Goldschmidt
194 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
195 windows (bug #34176 select after non-blocking send times out)
197 2011-10-18: Simon Goldschmidt
198 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
199 consider netif->mtu, causes slow network
201 2011-10-18: Simon Goldschmidt
202 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
204 2011-10-18: Simon Goldschmidt
205 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
207 2011-10-17: Simon Goldschmidt
208 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
210 2011-10-13: Simon Goldschmidt
211 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
212 zero window is received) by starting the persist timer when a zero window is
213 received, not when we have more data queued for sending than fits into the
216 2011-10-13: Simon Goldschmidt
217 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
219 2011-10-13: Simon Goldschmidt
220 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
221 used and not all protocols are enabled
223 2011-10-12: Simon Goldschmidt
224 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
226 2011-10-09: Simon Goldschmidt
227 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
228 byte value when pcb->unacked != NULL
230 2011-10-09: Simon Goldschmidt
231 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
233 2011-09-27: Simon Goldschmidt
234 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
236 2011-09-27: Simon Goldschmidt
237 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
239 2011-09-27: Simon Goldschmidt
240 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
242 2011-09-24: Simon Goldschmidt
243 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
245 2011-09-23: Simon Goldschmidt
246 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
247 the last packet including FIN can lose data
249 2011-09-22: Simon Goldschmidt
250 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
253 2011-09-21: Simon Goldschmidt
254 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
257 2011-09-20: Simon Goldschmidt
258 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
260 2011-09-11: Simon Goldschmidt
261 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
264 2011-09-09: Simon Goldschmidt
265 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
268 2011-09-03: Simon Goldschmidt
269 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
270 is aggregated and sent to application
272 2011-09-01: Simon Goldschmidt
273 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
276 2011-09-01: Simon Goldschmidt
277 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
279 2011-08-24: Simon Goldschmidt
280 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
282 2011-08-24: Simon Goldschmidt
283 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
284 accept() on UDP connections
286 2011-08-24: Simon Goldschmidt
287 * sockets.h: fixed bug #34057 socklen_t should be a typedef
289 2011-08-24: Simon Goldschmidt
290 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
292 2011-08-24: Simon Goldschmidt
293 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
295 2011-08-24: Simon Goldschmidt
296 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
298 2011-08-22: Simon Goldschmidt
299 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
300 merely prevents nagle from not transmitting fast after closing.)
302 2011-07-22: Simon Goldschmidt
303 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
304 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
305 lwip_send() sends as much as possible for non-blocking sockets
307 2011-07-22: Simon Goldschmidt
308 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
309 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
310 at regular intervals from main level.
312 2011-07-21: Simon Goldschmidt
313 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
314 sending an ARP request when an ARP entry is used in the last minute before
317 2011-07-04: Simon Goldschmidt
318 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
320 2011-06-26: Simon Goldschmidt
321 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
322 updating its documentation only.
324 2011-06-26: Simon Goldschmidt
325 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
328 2011-06-26: Simon Goldschmidt
329 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
337 2011-03-27: Simon Goldschmidt
338 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
339 calculate it in tcp_zero_window_probe (the only place where it was used).
341 2010-11-21: Simon Goldschmidt
342 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
345 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
346 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
347 IP_MULTICAST_LOOP at socket- and raw-API level.
349 2010-06-16: Simon Goldschmidt
350 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
351 link-layer-addressed UDP traffic to be received while a netif is down (just
352 like DHCP during configuration)
354 2010-05-22: Simon Goldschmidt
355 * many many files: bug #27352: removed packing from ip_addr_t, the packed
356 version is now only used in protocol headers. Added global storage for
357 current src/dest IP address while in input functions.
359 2010-05-16: Simon Goldschmidt
360 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
361 calculation (and use them throughout the stack where applicable)
363 2010-05-16: Simon Goldschmidt
364 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
365 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
367 2010-05-16: Simon Goldschmidt
368 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
369 MEMP pool instead of the heap
371 2010-05-13: Simon Goldschmidt
372 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
373 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
374 packets to more than one pcb.
376 2010-05-02: Simon Goldschmidt
377 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
378 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
380 2010-04-30: Simon Goldschmidt
381 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
382 take a precalculated checksum, added pbuf_fill_chksum() to copy data
383 into a pbuf and at the same time calculating the checksum for that data
385 2010-04-29: Simon Goldschmidt
386 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
387 2-byte-aligned IP addresses and MAC addresses
389 2010-04-28: Patch by Bill Auerbach
390 * ip.c: Inline generating IP checksum to save a function call
392 2010-04-14: Simon Goldschmidt
393 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
394 tcpip_thread processes messages or timeouts to implement a watchdog.
396 2010-03-28: Simon Goldschmidt
397 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
398 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
400 2010-03-27: Simon Goldschmidt
401 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
402 etharp_query to prevent unnecessary function calls (inspired by
405 2010-03-20: Simon Goldschmidt
406 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
407 since the linker cannot do this automatically to save space.
409 2010-03-20: Simon Goldschmidt
410 * opt.h, etharp.c/.h: Added support for static ARP table entries
412 2010-03-14: Simon Goldschmidt
413 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
414 when creating TCP segments, not when (re-)transmitting them.
416 2010-03-07: Simon Goldschmidt
417 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
418 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
419 This should speed up receiving data on sockets as the select code in
420 event_callback is only executed when select is waiting.
422 2010-03-06: Simon Goldschmidt
423 * tcp_out.c: task #7013 (Create option to have all packets delivered to
424 netif->output in one piece): Always copy to try to create single pbufs
427 2010-03-06: Simon Goldschmidt
428 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
429 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
430 for tcp netconns to receive pbufs, not netbufs; use that function
433 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
434 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
435 Work on tcp_enqueue: Don't waste memory when chaining segments,
436 added option TCP_OVERSIZE to prevent creating many small pbufs when
437 calling tcp_write with many small blocks of data. Instead, pbufs are
438 allocated larger than needed and the space is used for later calls to
441 2010-02-21: Simon Goldschmidt
442 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
445 2010-02-21: Simon Goldschmidt
446 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
447 implementation of tcp to make API usage cleare to application programmers
449 2010-02-14: Simon Goldschmidt/Stephane Lesage
450 * ip_addr.h: Improved some defines working on ip addresses, added faster
451 macro to copy addresses that cannot be NULL
453 2010-02-13: Simon Goldschmidt
454 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
455 blocking send operation)
457 2010-02-12: Simon Goldschmidt
458 * sockets.c/.h: Added a minimal version of posix fctl() to have a
459 standardised way to set O_NONBLOCK for nonblocking sockets.
461 2010-02-12: Simon Goldschmidt
462 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
463 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
464 and dhcp work with user-allocated structs instead of callin mem_malloc
466 2010-02-12: Simon Goldschmidt/Jeff Barber
467 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
468 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
470 2010-02-12: Simon Goldschmidt
471 * sys layer: task #10139 (Prefer statically allocated memory): converted
472 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
473 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
474 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
475 to let sys.h use binary semaphores instead of mutexes - as before)
477 2010-02-09: Simon Goldschmidt (Simon Kallweit)
478 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
479 (Restart system timeout handling)
481 2010-02-09: Simon Goldschmidt
482 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
483 netif.c) - loopif does not have to be created by the port any more,
484 just define LWIP_HAVE_LOOPIF to 1.
486 2010-02-08: Simon Goldschmidt
487 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
488 inet_ntoa_r/ipaddr_ntoa_r
490 2010-02-08: Simon Goldschmidt
491 * netif.h: Added netif_s/get_igmp_mac_filter() macros
493 2010-02-05: Simon Goldschmidt
494 * netif.h: Added function-like macros to get/set the hostname on a netif
496 2010-02-04: Simon Goldschmidt
497 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
498 make changing the actual implementation behind the typedef easier.
500 2010-02-01: Simon Goldschmidt
501 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
502 for allocating memory when getaddrinfo() is called.
504 2010-01-31: Simon Goldschmidt
505 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
506 them once instead of parsing for every option. This also removes
507 the need for mem_malloc from dhcp_recv and makes it possible to
508 correctly retrieve the BOOTP file.
510 2010-01-30: simon Goldschmidt
511 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
514 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
515 * api.h, api_msg.c, sockets.c: Added except set support in select
518 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
519 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
520 Add non-blocking support for connect (partly from patch #6860),
521 plus many cleanups in socket & netconn API.
523 2010-01-27: Simon Goldschmidt
524 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
525 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
527 2010-01-26: Simon Goldschmidt
528 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
530 2010-01-14: Simon Goldschmidt
531 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
532 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
534 2010-01-13: Simon Goldschmidt
535 * mem.c: The heap now may be moved to user-defined memory by defining
536 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
537 (patch #6966 and bug #26133)
539 2010-01-10: Simon Goldschmidt (Bill Auerbach)
540 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
543 2010-01-10: Simon Goldschmidt
544 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
545 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
547 2009-12-31: Simon Goldschmidt
548 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
549 added timers.c/.h: Separated timer implementation from semaphore/mbox
550 implementation, moved timer implementation to timers.c/.h, timers are
551 now only called from tcpip_thread or by explicitly checking them.
554 2009-12-27: Simon Goldschmidt
555 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
556 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
561 2011-04-20: Simon Goldschmidt
562 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
564 2011-04-13: Simon Goldschmidt
565 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
566 using ports in the IANA private/dynamic range (49152 through 65535).
568 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
569 * etharp.h/.c: Fixed broken VLAN support.
571 2011-03-27: Simon Goldschmidt
572 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
573 pcbs) by checking if the pcb was bound (local_port != 0).
575 2011-03-27: Simon Goldschmidt
576 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
578 2011-03-27: Simon Goldschmidt
579 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
580 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
582 2011-03-27: Simon Goldschmidt
583 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
584 is present never times out) by starting retransmission timer before checking
587 2011-03-22: Simon Goldschmidt
588 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
589 calling sio_read_abort() if the file descriptor is valid.
591 2011-03-14: Simon Goldschmidt
592 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
593 more than once can render a socket useless) since it mainly involves changing
594 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
596 2011-03-13: Simon Goldschmidt
597 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
598 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
599 use EALRADY instead of -1
601 2011-03-13: Simon Goldschmidt
602 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
603 connection has been aborted by err_tcp (since this is not a normal closing
606 2011-03-13: Simon Goldschmidt
607 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
608 with pcb->state != CLOSED
610 2011-02-17: Simon Goldschmidt
611 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
614 2011-02-17: Simon Goldschmidt
615 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
617 2011-01-24: Simon Goldschmidt
618 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
620 2010-12-02: Simon Goldschmidt
621 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
623 2010-11-23: Simon Goldschmidt
624 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
625 LWIP_SO_RCVBUF and ioctl/FIONREAD.
627 2010-11-23: Simon Goldschmidt
628 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
629 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
631 2010-11-23: Simon Goldschmidt
632 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
633 refusing 'refused_data' again.
635 2010-11-22: Simon Goldschmidt
636 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
637 after a successful nonblocking connection.
639 2010-11-22: Simon Goldschmidt
640 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
641 must be sent link-local
643 2010-11-22: Simon Goldschmidt
644 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
647 2010-11-20: Simon Goldschmidt
648 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
650 2010-11-20: Simon Goldschmidt
651 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
652 resemble other stacks.
654 2010-11-20: Simon Goldschmidt
655 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
656 no-copy TCP writes will never succeed.
658 2010-11-20: Simon Goldschmidt
659 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
660 not match documentation: return ERR_ARG instead of ERR_VAL if not
661 initialized or wrong argument.
663 2010-10-20: Simon Goldschmidt
664 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
666 2010-10-05: Simon Goldschmidt
667 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
668 replugging the network cable after an AutoIP address was assigned.
670 2010-08-10: Simon Goldschmidt
671 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
673 2010-08-03: Simon Goldschmidt
674 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
676 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
677 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
678 endian architectures)
680 2010-07-28: Simon Goldschmidt
681 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
684 2010-07-27: Simon Goldschmidt
685 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
686 harm but never did anything
688 2010-07-21: Simon Goldschmidt
689 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
692 2010-07-16: Kieran Mansley
693 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
695 2010-07-10: Simon Goldschmidt
696 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
698 2010-06-30: Simon Goldschmidt
699 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
702 2010-06-28: Kieran Mansley
703 * timers.c remove unportable printing of C function pointers
705 2010-06-24: Simon Goldschmidt
706 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
707 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
709 2010-06-24: Simon Goldschmidt
710 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
711 implemented shutdown at socket level.
713 2010-06-21: Simon Goldschmidt
714 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
715 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
716 custom pbufs that reference other (original) pbufs. Additionally set
717 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
719 2010-06-15: Simon Goldschmidt
720 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
722 2010-06-14: Simon Goldschmidt
723 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
725 2010-06-12: Simon Goldschmidt
726 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
729 2010-05-17: Simon Goldschmidt
730 * netdb.c: Correctly NULL-terminate h_addr_list
732 2010-05-16: Simon Goldschmidt
733 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
734 "symbol already defined" i.e. when linking to winsock
736 2010-05-05: Simon Goldschmidt
737 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
740 2010-04-21: Simon Goldschmidt
741 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
744 2010-03-28: Luca Ceresoli
745 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
747 2010-03-27: Luca Ceresoli
748 * mib2.c: patch #7130: remove meaningless const qualifiers
750 2010-03-26: Simon Goldschmidt
751 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
753 2010-03-26: Simon Goldschmidt
754 * various files: Fixed compiling with different options disabled (TCP/UDP),
755 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
757 2010-03-25: Simon Goldschmidt
758 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
760 2010-03-25: Simon Goldschmidt
761 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
762 overrunning our rcv_wnd in ooseq case.
764 2010-03-22: Simon Goldschmidt
765 * tcp.c: tcp_listen() did not copy the pcb's prio.
767 2010-03-19: Simon Goldschmidt
768 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
770 2010-03-14: Simon Goldschmidt
771 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
772 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
773 and basing PBUF_LINK_HLEN on it.
775 2010-03-08: Simon Goldschmidt
776 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
777 when assiging routable address): when checking incoming packets and
778 aborting existing connection on address change, filter out link-local
781 2010-03-06: Simon Goldschmidt
782 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
784 2010-03-06: Simon Goldschmidt
785 * ipv4/ip.c: Don't try to forward link-local addresses
787 2010-03-06: Simon Goldschmidt
788 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
791 2010-03-05: Simon Goldschmidt
792 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
795 2010-03-05: Simon Goldschmidt
796 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
797 into multiple calls to tcp_write.
799 2010-02-21: Simon Goldschmidt
800 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
801 the implementation of DNS_USES_STATIC_BUF==1)
803 2010-02-20: Simon Goldschmidt
804 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
805 close() vs. shutdown(). Now the application does not get any more
806 recv callbacks after calling tcp_close(). Added tcp_shutdown().
808 2010-02-19: Simon Goldschmidt
809 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
810 confusion with realloc()
812 2010-02-15: Simon Goldschmidt/Stephane Lesage
813 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
816 2010-02-14: Simon Goldschmidt
817 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
818 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
819 admin-status of a netif are up
821 2010-02-14: Simon Goldschmidt
822 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
823 reception and is not really necessary
825 2010-02-14: Simon Goldschmidt
826 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
827 request was directed as us (RFC 826, Packet Reception), otherwise
828 only update existing entries; internalized some functions
830 2010-02-14: Simon Goldschmidt
831 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
832 disabled on netif used for PPPoE) by adding a new netif flag
833 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
834 device but prevents usage of ARP (so that ethernet_input can be used
837 2010-02-12: Simon Goldschmidt
838 * netif.c: netif_set_link_up/down: only do something if the link state
841 2010-02-12: Simon Goldschmidt/Stephane Lesage
842 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
845 2010-02-12: Simon Goldschmidt
846 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
848 2010-02-09: Simon Goldschmidt
849 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
850 (recv() makes receive window update for data that wasn't received by
853 2010-02-09: Simon Goldschmidt/Stephane Lesage
854 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
855 or any netconn_recv() error)
857 2010-02-09: Simon Goldschmidt
858 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
860 2010-02-09: Simon Goldschmidt
861 * netif.c: For loopback packets, adjust the stats- and snmp-counters
862 for the loopback netif.
864 2010-02-08: Simon Goldschmidt
865 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
866 since they are not used anywhere else.
868 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
869 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
870 (patch from bug #28798)
872 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
873 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
874 another bug when LWIP_RAND() returns zero.
876 2010-02-04: Simon Goldschmidt
877 * nearly every file: Use macros defined in ip_addr.h (some of them new)
878 to work with IP addresses (preparation for bug #27352 - Change ip_addr
879 from struct to typedef (u32_t) - and better code).
881 2010-01-31: Simon Goldschmidt
882 * netif.c: Don't call the link-callback from netif_set_up/down() since
883 this invalidly retriggers DHCP.
885 2010-01-29: Simon Goldschmidt
886 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
887 portability file inet.h and its contents from the stack: moved htonX-
888 functions to def.h (and the new def.c - they are not ipv4 dependent),
889 let inet.h depend on ip_addr.h and not the other way round.
890 This fixes bug #28732.
892 2010-01-28: Kieran Mansley
893 * tcp.c: Ensure ssthresh >= 2*MSS
895 2010-01-27: Simon Goldschmidt
896 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
897 callback can lead to accessing unallocated memory. As a consequence,
898 ERR_ABRT means the application has called tcp_abort()!
900 2010-01-25: Simon Goldschmidt
901 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
902 not implemented in SNMP): write-only or not-accessible are still
903 returned by getnext (though not by get)
905 2010-01-24: Simon Goldschmidt
906 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
907 not use reserved C/C++ keywords
909 2010-01-23: Simon Goldschmidt
910 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
913 2010-01-21: Simon Goldschmidt
914 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
915 if tcp_enqueue fails) both in raw- and netconn-API
917 2010-01-19: Simon Goldschmidt
918 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
920 2010-01-18: Iordan Neshev/Simon Goldschmidt
921 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
922 bugfix backports from 2.4.x.
924 2010-01-18: Simon Goldschmidt
925 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
927 2010-01-17: Simon Goldschmidt
928 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
929 task #10102: "netconn: clean up conn->err threading issues" by adding
930 error return value to struct api_msg_msg
932 2010-01-17: Simon Goldschmidt
933 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
934 to return err_t (bugs #27709 and #28087)
936 2010-01-14: Simon Goldschmidt
937 * ...: Use typedef for function prototypes throughout the stack.
939 2010-01-13: Simon Goldschmidt
940 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
941 window = 0) by correctly draining recvmbox/acceptmbox
943 2010-01-11: Simon Goldschmidt
944 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
945 erroneous callbacks) by copying the code from recent pppd
947 2010-01-10: Simon Goldschmidt
948 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
950 2010-01-10: Simon Goldschmidt
951 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
953 2010-01-08: Simon Goldschmidt
954 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
956 2010-01-08: Simon Goldschmidt
957 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
958 passed to dns_local_addhost() might be volatile
960 2010-01-07: Simon Goldschmidt
961 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
963 2010-01-06: Simon Goldschmidt
964 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
966 2009-12-31: Simon Goldschmidt
967 * many ppp files: Reorganised PPP source code from ucip structure to pppd
968 structure to easily compare our code against the pppd code (around v2.3.1)
970 2009-12-27: Simon Goldschmidt
971 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
979 2009-10-27 Simon Goldschmidt/Stephan Lesage
980 * netifapi.c/.h: Added netifapi_netif_set_addr()
982 2009-10-07 Simon Goldschmidt/Fabian Koch
983 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
984 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
986 2009-08-26 Simon Goldschmidt/Simon Kallweit
987 * slipif.c/.h: bug #26397: SLIP polling support
989 2009-08-25 Simon Goldschmidt
990 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
991 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
993 2009-08-25 Simon Goldschmidt
994 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
996 2009-08-24 Jakob Stoklund Olesen
997 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
998 to netif_set_link_up().
1000 2009-08-23 Simon Goldschmidt
1001 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1002 to a human-readable string.
1006 2009-12-24: Kieran Mansley
1007 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1010 2009-12-06: Simon Goldschmidt
1011 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1012 be statically allocated (like in ucip)
1014 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1015 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1017 2009-12-03: Simon Goldschmidt
1018 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1019 could have non-zero length
1021 2009-12-02: Simon Goldschmidt
1022 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1023 tcp_input_pcb until after calling the pcb's callbacks
1025 2009-11-29: Simon Goldschmidt
1026 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1027 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1029 2009-11-29: Simon Goldschmidt
1030 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1031 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1033 2009-11-26: Simon Goldschmidt
1034 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1037 2009-11-26: Simon Goldschmidt
1038 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1039 algorithm at PCB level
1041 2009-11-22: Simon Goldschmidt
1042 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1044 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1045 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1046 reusing time-wait pcb
1048 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1049 * sockets.c: Fixed bug #28062: Data received directly after accepting
1050 does not wake up select
1052 2009-11-11: Simon Goldschmidt
1053 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1055 2009-10-30: Simon Goldschmidt
1056 * opt.h: Increased default value for TCP_MSS to 536, updated default
1057 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1059 2009-10-28: Kieran Mansley
1060 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1061 to follow algorithm from TCP/IP Illustrated
1063 2009-10-27: Kieran Mansley
1064 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1066 2009-10-25: Simon Goldschmidt
1067 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1068 pcb->recv is NULL to keep rcv_wnd correct)
1070 2009-10-25: Simon Goldschmidt
1071 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1073 2009-10-23: Simon Goldschmidt (David Empson)
1074 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1076 2009-10-21: Simon Goldschmidt
1077 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1078 trailing 1 byte len (SYN/FIN)
1080 2009-10-21: Simon Goldschmidt
1081 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1083 2009-10-19: Simon Goldschmidt
1084 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1085 conditional code to assert where applicable), check pbuf length before
1086 testing for valid reply
1088 2009-10-19: Simon Goldschmidt
1089 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1090 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1092 2009-10-16: Simon Goldschmidt
1093 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1094 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1097 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1098 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1100 2009-10-15: Simon Goldschmidt
1101 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1104 2009-10-15: Simon Goldschmidt
1105 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1106 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1107 of network byte order
1109 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1110 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1111 which are not consecutive when retransmitting unacked segments
1113 2009-10-09 Simon Goldschmidt
1114 * opt.h: Fixed default values of some stats to only be enabled if used
1115 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1117 2009-08-30 Simon Goldschmidt
1118 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1119 function" by checking for loopback before calling ip_frag
1121 2009-08-25 Simon Goldschmidt
1122 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1124 2009-08-23 Simon Goldschmidt
1125 * ppp.c: bug #27078: Possible memory leak in pppInit()
1127 2009-08-23 Simon Goldschmidt
1128 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1131 2009-08-23 Simon Goldschmidt
1132 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1133 Fixed wrong parenthesis, added check in init.c
1135 2009-08-23 Simon Goldschmidt
1136 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1138 2009-08-23 Simon Goldschmidt
1139 * many ppp files: bug #27267: Added include to string.h where needed
1141 2009-08-23 Simon Goldschmidt
1142 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1149 2009-05-10 Simon Goldschmidt
1150 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1151 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1152 one pbuf to help MACs that don't support scatter-gather DMA.
1154 2009-05-09 Simon Goldschmidt
1155 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1156 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1158 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1159 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1160 extended info about the currently received packet.
1162 2009-04-27 Simon Goldschmidt
1163 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1165 2009-04-25 Simon Goldschmidt
1166 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1167 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1169 2009-04-21 Simon Goldschmidt
1170 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1171 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1172 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1173 as an external function for lookup.
1175 2009-04-15 Simon Goldschmidt
1176 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1178 2009-03-31 Kieran Mansley
1179 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1180 TCP timestamp options, off by default. Rework tcp_enqueue() to
1181 take option flags rather than specified option data
1183 2009-02-18 Simon Goldschmidt
1184 * cc.h: Added printf formatter for size_t: SZT_F
1186 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1187 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1190 2009-02-12 Simon Goldschmidt
1191 * init.h: Added LWIP_VERSION to get the current version of the stack
1193 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1194 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1195 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1198 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1199 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1200 is only used by UDPLITE at present, so conditionalise it.
1202 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1203 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1204 "seed" address. This should reduce AUTOIP conflicts if
1205 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1207 2008-10-02 Jonathan Larmour and Rishi Khan
1208 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1211 2008-06-30 Simon Goldschmidt
1212 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1213 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1214 mem_free to run between mem_malloc iterations. Added illegal counter for
1217 2008-06-27 Simon Goldschmidt
1218 * stats.h/.c, some other files: patch #6483: stats module improvement:
1219 Added defines to display each module's statistic individually, added stats
1220 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1222 2008-06-17 Simon Goldschmidt
1223 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1224 (define LWIP_ERR_T in cc.h)
1226 2008-06-17 Simon Goldschmidt
1227 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1230 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1231 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1232 modified version of patch # 6370: Moved loopif code to netif.c so that
1233 loopback traffic is supported on all netifs (all local IPs).
1234 Added option to limit loopback packets for each netifs.
1238 2009-08-12 Kieran Mansley
1239 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1240 out of window or out of order properly
1242 2009-08-12 Kieran Mansley
1243 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1245 2009-07-28 Simon Goldschmidt
1246 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1248 2009-07-27 Kieran Mansley
1249 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1251 2009-07-09 Kieran Mansley
1252 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1253 recv_avail and don't increment counters until message successfully
1256 2009-06-25 Kieran Mansley
1257 * api_msg.c api.h: BUG26722: initialise netconn write variables
1260 2009-06-25 Kieran Mansley
1261 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1263 2009-06-25 Kieran Mansley
1264 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1265 simultaneous close behaviour, and make snd_nxt have the same meaning
1268 2009-05-12 Simon Goldschmidt
1269 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1270 arp_table / uses etharp_query" by adding etharp_gratuitous()
1272 2009-05-12 Simon Goldschmidt
1273 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1274 to the IP header (used by igmp_ip_output_if)
1276 2009-05-06 Simon Goldschmidt
1277 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1278 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1280 2009-05-05 Simon Goldschmidt
1281 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1284 2009-05-04 Simon Goldschmidt
1285 * init.c: snmp was not initialized in lwip_init()
1287 2009-05-04 Frédéric Bernon
1288 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1290 2009-05-03 Simon Goldschmidt
1291 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1292 (and unsent->next == NULL)
1294 2009-05-02 Simon Goldschmidt
1295 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1296 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1298 2009-05-02 Simon Goldschmidt
1299 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1301 2009-05-01 Simon Goldschmidt
1302 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1304 2009-05-01 Simon Goldschmidt
1305 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1307 2009-04-29 Frédéric Bernon
1308 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1309 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1310 of broadcast packets even when this option wasn't set. Port maintainers
1311 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1312 If you want this option also filter broadcast on recv operations, you also
1313 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1315 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1316 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1317 DHCP/AUTOIP cooperation
1319 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1320 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1321 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1322 right place in tcp_output and tcp_rexmit).
1324 2009-04-25 Simon Goldschmidt
1325 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1326 when debugging": memp_sizes contained the wrong sizes (including sanity
1327 regions); memp pools for MEM_USE_POOLS were too small
1329 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1330 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1331 behavior, with with ip address string not ended by a '\0', a space or a
1334 2009-04-19 Simon Goldschmidt
1335 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1336 pcb->err is called, not pcb->connected (with an error code).
1338 2009-04-19 Simon Goldschmidt
1339 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1340 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1342 2009-04-19 Simon Goldschmidt
1343 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1344 in the header pbuf, not the data pbuf)
1346 2009-04-18 Simon Goldschmidt
1347 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1349 2009-04-15 Simon Goldschmidt
1350 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1352 2009-04-15 Simon Goldschmidt
1353 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1355 2009-04-15 Simon Goldschmidt
1356 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1357 ip_hinted_output() (for smaller code mainly)
1359 2009-04-15 Simon Goldschmidt
1360 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1362 2009-04-15 Simon Goldschmidt
1363 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1364 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1365 is big enough in dhcp_start
1367 2009-04-15 Simon Goldschmidt
1368 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1370 2009-04-15 Simon Goldschmidt
1371 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1373 2009-04-15 Simon Goldschmidt
1374 * sockets.c: bug #26121: set_errno can be overridden
1376 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1377 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1380 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1381 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1384 2009-03-31 Kieran Mansley
1385 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1386 updates are calculated and sent (BUG20515)
1388 * tcp_in.c: cope with SYN packets received during established states,
1389 and retransmission of initial SYN.
1391 * tcp_out.c: set push bit correctly when tcp segments are merged
1393 2009-03-27 Kieran Mansley
1394 * tcp_out.c set window correctly on probes (correcting change made
1397 2009-03-26 Kieran Mansley
1398 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1399 connections where no reset required (bug #25622)
1401 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1404 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1405 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1406 too small depending on MEM_ALIGNMENT
1408 2009-02-16 Simon Goldschmidt
1409 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1410 converted size argument of netconn_write to 'size_t'
1412 2009-02-16 Simon Goldschmidt
1413 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1414 by moving accept callback function pointer to TCP_PCB_COMMON
1416 2009-02-12 Simon Goldschmidt
1417 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1420 2009-02-11 Simon Goldschmidt
1421 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1423 2009-02-11 Simon Goldschmidt
1424 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1425 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1427 2009-02-10 Simon Goldschmidt
1428 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1429 Accepts_pending is decrease on a corresponding listen pcb when a connection
1430 in state SYN_RCVD is close.
1432 2009-01-28 Jonathan Larmour
1433 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1436 2008-12-19 Simon Goldschmidt
1437 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1439 2008-12-10 Tamas Somogyi, Frédéric Bernon
1440 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1441 port uses deleted netbuf.
1443 2008-10-18 Simon Goldschmidt
1444 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1447 2008-10-15 Simon Goldschmidt
1448 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1449 by packing the struct ip_reass_helper.
1451 2008-10-03 David Woodhouse, Jonathan Larmour
1452 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1454 2008-10-02 Jonathan Larmour
1455 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1456 padding is included.
1458 2008-09-30 Jonathan Larmour
1459 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1460 assertion check that addrlen isn't NULL.
1462 2008-09-30 Jonathan Larmour
1463 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1465 2008-08-26 Simon Goldschmidt
1466 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1467 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1469 2008-08-14 Simon Goldschmidt
1470 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1471 tcp_close returns != ERR_OK)
1473 2008-07-08 Frédéric Bernon
1474 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1475 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1477 2008-06-24 Jonathan Larmour
1478 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1479 if tcp_seg_copy fails.
1481 2008-06-17 Simon Goldschmidt
1482 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1483 and created defines for swapping bytes and folding u32 to u16.
1485 2008-05-30 Kieran Mansley
1486 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1487 rather than rcv_ann_wnd when deciding if packets are in-window.
1488 Contributed by <arasmussen@consultant.datasys.swri.edu>
1490 2008-05-30 Kieran Mansley
1491 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1492 passing as function pointers when MEM_LIBC_MALLOC is defined.
1494 2008-05-09 Jonathan Larmour
1495 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1496 stop it being treated as a fatal error.
1498 2008-04-15 Simon Goldschmidt
1499 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1502 2008-03-27 Simon Goldschmidt
1503 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1504 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1505 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1506 or heap memory from interrupt context
1508 2008-03-26 Simon Goldschmidt
1509 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1510 host sent a zero mss as TCP option.
1517 2008-03-10 Jonathan Larmour
1518 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1519 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1521 2008-01-22 Frédéric Bernon
1522 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1523 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1525 2008-01-14 Frédéric Bernon
1526 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1527 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1528 tcp_recv callback (see rawapi.txt).
1530 2008-01-14 Frédéric Bernon, Marc Chaland
1531 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1533 2008-01-12 Frédéric Bernon
1534 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1535 netconn::sem per netconn::op_completed like suggested for the task #7490
1536 "Add return value to sys_mbox_post".
1538 2008-01-12 Frédéric Bernon
1539 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1540 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1541 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1543 2008-01-10 Frédéric Bernon
1544 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1545 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1546 "blocking" ("block" parameter = 1).
1548 2008-01-10 Frédéric Bernon
1549 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1550 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1551 "Add return value to sys_mbox_post".
1553 2008-01-05 Frédéric Bernon
1554 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1555 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1556 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1557 indicate the number of pointers query by the mailbox. There is three defines
1558 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1559 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1560 parameter in your implementation, but to ignore it to keep the previous behavior.
1561 The new sys_mbox_trypost function return a value to know if the mailbox is
1562 full or if the message is posted. Take a look to sys_arch.txt for more details.
1563 This new function is used in tcpip_input (so, can be called in an interrupt
1564 context since the function is not blocking), and in recv_udp and recv_raw.
1566 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1567 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1568 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1569 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1570 documentation in the rawapi.txt file.
1572 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1573 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1575 2007-12-31 Frédéric Bernon, Luca Ceresoli
1576 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1577 in autoip". The change in etharp_raw could be removed, since all calls to
1578 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1579 wrong in the future.
1581 2007-12-30 Frédéric Bernon, Tom Evans
1582 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1583 Filtering" reported by Tom Evans.
1585 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1586 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1587 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1588 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1589 keep accepting new connections.
1591 2007-12-13 Frédéric Bernon
1592 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1593 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1595 2007-12-12 Frédéric Bernon
1596 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1597 are the one which have ram usage.
1599 2007-12-05 Frédéric Bernon
1600 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1601 set of variables (=0) or a local one (=1). In this last case, your port should
1602 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1603 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1605 2007-12-03 Simon Goldschmidt
1606 * ip.c: ip_input: check if a packet is for inp first before checking all other
1607 netifs on netif_list (speeds up packet receiving in most cases)
1609 2007-11-30 Simon Goldschmidt
1610 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1611 UDP: move a (connected) pcb selected for input to the front of the list of
1612 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1615 2007-11-28 Simon Goldschmidt
1616 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1618 2007-11-25 Simon Goldschmidt
1619 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1622 2007-11-24 Simon Goldschmidt
1623 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1624 to the new file netdb.c; included lwip_getaddrinfo.
1626 2007-11-21 Simon Goldschmidt
1627 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1628 based on the MTU of the netif used to send. Enabled by default. Disable by
1629 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1631 2007-11-19 Frédéric Bernon
1632 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1633 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1634 copy dns payload to parse the response), return an error if there is no place
1635 for a new query, and fix some minor problems.
1637 2007-11-16 Simon Goldschmidt
1638 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1639 removed files: core/inet.c, core/inet6.c
1640 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1641 inet and chksum part; changed includes in all lwIP files as appropriate
1643 2007-11-16 Simon Goldschmidt
1644 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1645 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1646 (gethostbyname/gethostbyname_r).
1648 2007-11-15 Jim Pettinato, Frédéric Bernon
1649 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1650 requests with RAW api interface. Initialization is done in lwip_init() with
1651 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1652 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1653 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1654 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1655 list with points to improve.
1657 2007-11-06 Simon Goldschmidt
1658 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1659 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1660 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1662 2007-11-06 Simon Goldschmidt
1663 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1664 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1665 implementation from netconn api applications.
1667 2007-11-03 Frédéric Bernon
1668 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1669 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1670 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1671 it. This is a first release which have to be improve for TCP. Note it used the
1672 netconn::recv_avail which need to be more "thread-safe" (note there is already
1673 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1675 2007-11-01 Frédéric Bernon, Marc Chaland
1676 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1677 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1678 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1679 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1680 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1682 2007-10-24 Frédéric Bernon
1683 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1684 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1685 some code (like we have talk in "patch #5919 : Create compile switch to remove
1686 select code"), but it could be done later.
1688 2007-10-08 Simon Goldschmidt
1689 * many files: Changed initialization: many init functions are not needed any
1690 more since we now rely on the compiler initializing global and static
1693 2007-10-06 Simon Goldschmidt
1694 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1695 to enqueue the received pbufs so that multiple packets can be reassembled
1696 simultaneously and no static reassembly buffer is needed.
1698 2007-10-05 Simon Goldschmidt
1699 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1700 all netifs (or ports) can use it.
1702 2007-10-05 Frédéric Bernon
1703 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1704 common function to reduce a little bit the footprint (for all functions using
1705 only the "netif" parameter).
1707 2007-10-03 Frédéric Bernon
1708 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1709 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1710 a little bit the footprint (for all functions using only the "netif" parameter).
1712 2007-09-15 Frédéric Bernon
1713 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1714 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1715 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1716 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1718 2007-09-10 Frédéric Bernon
1719 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1720 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1721 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1722 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1723 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1724 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1725 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1726 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1727 when it's queried (any direct call to "sysuptime" is changed by a call to
1728 snmp_get_sysuptime).
1730 2007-09-09 Frédéric Bernon, Bill Florac
1731 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1732 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1733 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1734 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1735 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1736 the next query message to receive the matching multicast streams).
1738 2007-09-08 Frédéric Bernon
1739 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1740 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1741 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1742 Enable to access to these fields with LWIP_TCP=0.
1744 2007-09-05 Frédéric Bernon
1745 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1746 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1747 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1748 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1749 help to reduce footprint, and to reduce "visibility" on the Internet.
1751 2007-09-05 Frédéric Bernon, Bill Florac
1752 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1753 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1754 parameters have to be provided: a task name, and a task stack size. For this
1755 one, since it's platform dependant, you could define the best one for you in
1756 your lwipopts.h. For port maintainers, you can just add these new parameters
1757 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1760 2007-09-05 Frédéric Bernon
1761 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1762 inside init.c for task #7142 "Sanity check user-configurable values".
1764 2007-09-04 Frédéric Bernon, Bill Florac
1765 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1766 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1767 value). It will avoid potential fragmentation problems, use a counter to know
1768 how many times a group is used on an netif, and free it when all applications
1769 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1770 check if LWIP_IGMP!=0).
1772 2007-09-03 Frédéric Bernon
1773 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1774 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1775 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1776 and/or the "interface" field (for netconn layer), for join/leave operations.
1777 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1778 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1780 2007-08-30 Frédéric Bernon
1781 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1782 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1783 with other API (application based on raw API, or future "socket2" API). Ports
1784 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1786 2007-08-30 Frédéric Bernon, Jonathan Larmour
1787 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1788 user-configurable values".
1790 2007-08-29 Frédéric Bernon
1791 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1792 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1793 spirit than the others modules. Modify some IGMP debug traces.
1795 2007-08-29 Frédéric Bernon
1796 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1797 Add lwip_init function to regroup all modules initializations, and to provide
1798 a place to add code for task #7142 "Sanity check user-configurable values".
1799 Ports maintainers should remove direct initializations calls from their code,
1800 and add init.c in their makefiles. Note that lwip_init() function is called
1801 inside tcpip_init, but can also be used by raw api users since all calls are
1802 disabled when matching options are disabled. Also note that their is new options
1803 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1805 2007-08-26 Marc Boucher
1806 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1807 since they can under certain circumstances be called with an invalid conn
1808 pointer after the connection has been closed (and conn has been freed).
1810 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1811 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1812 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1814 2007-08-22 Frédéric Bernon
1815 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1816 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1818 2007-08-22 Frédéric Bernon
1819 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1820 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1821 name is tcpip_input (we keep the name of 1.2.0 function).
1823 2007-08-17 Jared Grubb
1824 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1825 settings into new memp_std.h and optional user file lwippools.h. This adds
1826 more dynamic mempools, and allows the user to create an arbitrary number of
1827 mempools for mem_malloc.
1829 2007-08-16 Marc Boucher
1830 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1831 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1832 close the connection.
1834 2007-08-16 Marc Boucher
1835 * sockets.c: lwip_accept(): check netconn_peer() error return.
1837 2007-08-16 Marc Boucher
1838 * mem.c, mem.h: Added mem_calloc().
1840 2007-08-16 Marc Boucher
1841 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1842 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1843 and starving other message types.
1844 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1846 2007-08-16 Marc Boucher
1847 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1848 type and flgs (later renamed to flags).
1849 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1850 Improved lwip_recvfrom(). TCP push now propagated.
1852 2007-08-16 Marc Boucher
1853 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1856 2007-08-16 Marc Boucher
1857 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1858 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1859 Added PPPoE support and various PPP improvements.
1861 2007-07-25 Simon Goldschmidt
1862 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1863 making netbuf_copy_partial use this function.
1865 2007-07-25 Simon Goldschmidt
1866 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1867 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1870 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1871 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1872 a link callback in the netif struct, and functions to handle it. Be carefull
1873 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1874 if you want to be sure to be compatible with future changes...
1876 2007-06-30 Frédéric Bernon
1877 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1879 2007-06-21 Simon Goldschmidt
1880 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1881 LWIP_AUTOIP =0 and =1 to remove redundant code.
1883 2007-06-21 Simon Goldschmidt
1884 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1885 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1886 heap. This both prevents memory fragmentation and gives a higher speed
1887 at the cost of more memory consumption. Turned off by default.
1889 2007-06-21 Simon Goldschmidt
1890 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1891 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1892 int to be able to send a bigger buffer than 64K with one time (mainly
1893 used from lwip_send).
1895 2007-06-21 Simon Goldschmidt
1896 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1897 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1899 2007-06-21 Simon Goldschmidt
1900 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1901 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1902 changes on low memory or empty send-buffer.
1904 2007-06-18 Simon Goldschmidt
1905 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1906 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1907 used for ethernet and struct eth_addr already had a defined length of 6).
1909 2007-06-17 Simon Goldschmidt
1910 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1911 to disable UDP checksum generation on transmit.
1913 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1914 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1915 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1916 this macro to check "conn" parameter in api_msg.c functions.
1918 2007-06-11 Simon Goldschmidt
1919 * sockets.c, sockets.h: Added UDP lite support for sockets
1921 2007-06-10 Simon Goldschmidt
1922 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1923 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1926 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1927 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1928 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1929 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1930 (see TODO mark in the source code).
1932 2007-06-09 Simon Goldschmidt
1933 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1934 etharp_output() to match netif->output so etharp_output() can be used
1935 directly as netif->output to save one function call.
1937 2007-06-08 Simon Goldschmidt
1938 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1939 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1940 added initialization of those to ethernetif, slipif and loopif.
1942 2007-05-18 Simon Goldschmidt
1943 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1944 (defaulting to off for now) that can be set to 0 to send fragmented
1945 packets by passing PBUF_REFs down the stack.
1947 2007-05-23 Frédéric Bernon
1948 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1949 connections, such present in patch #5959.
1951 2007-05-23 Frédéric Bernon
1952 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1953 code in only one part...
1955 2007-05-18 Simon Goldschmidt
1956 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1957 elements to overflow. This is achieved by adding some bytes before and after
1958 each pool element (increasing their size, of course), filling them with a
1959 prominent value and checking them on freeing the element.
1960 Set it to 2 to also check every element in every pool each time memp_malloc()
1961 or memp_free() is called (slower but more helpful).
1963 2007-05-10 Simon Goldschmidt
1964 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1965 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1968 2007-05-11 Frédéric Bernon
1969 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1970 Include a function pointer instead of a table index in the message to reduce
1971 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1972 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1974 2007-05-10 Simon Goldschmidt
1975 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1976 \ extern "C" {' in all header files. Now you can write your application using
1977 the lwIP stack in C++ and simply #include the core files. Note I have left
1978 out the netif/ppp/*h header files for now, since I don't know which files are
1979 included by applications and which are for internal use only.
1981 2007-05-09 Simon Goldschmidt
1982 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1983 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1984 situations where some compilers might inline the copy and save a function
1985 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1987 2007-05-08 Simon Goldschmidt
1988 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1989 to be overriden in case the C-library malloc implementation is not protected
1990 against concurrent access.
1992 2007-05-04 Simon Goldschmidt (Atte Kojo)
1993 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1994 multiple packets to the same host.
1996 2007-05-04 Frédéric Bernon, Jonathan Larmour
1997 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1998 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1999 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2000 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2001 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2002 these fields are now renamed "addr" & "port".
2004 2007-04-11 Jonathan Larmour
2005 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2006 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2007 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2008 by the port in sys_arch.h if desired.
2010 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2011 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2012 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2013 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2015 2007-04-05 Frédéric Bernon
2016 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2018 2007-04-04 Simon Goldschmidt
2019 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2020 use this for and architecture-independent form to tell the compiler you intentionally
2021 are not using this variable. Can be overriden in cc.h.
2023 2007-03-28 Frédéric Bernon
2024 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2025 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2026 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2027 It will be used by DHCP to register a client hostname, but can also be use when you call
2030 2007-03-28 Frédéric Bernon
2031 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2032 initialize a network interface's flag with. It tell this interface is an ethernet
2033 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2034 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2036 2007-03-26 Frédéric Bernon, Jonathan Larmour
2037 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2038 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2039 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2040 is done in tcpip_init function.
2042 2007-03-22 Frédéric Bernon
2043 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2044 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2045 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2046 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2047 but never used. Fix msg_in.c with the correct #if test for a stat display.
2049 2007-03-21 Kieran Mansley
2050 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2051 Provides callback on netif up/down state change.
2053 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2054 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2055 ip.c, netif.h, tcpip.c, opt.h:
2056 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2057 filter per all network interfaces. Declare a new function in netif to enable to
2058 control the MAC filter (to reduce lwIP traffic processing).
2060 2007-03-11 Frédéric Bernon
2061 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2062 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2063 unless you know what you're doing (default are RFC1122 compliant). Note
2064 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2066 2007-03-08 Frédéric Bernon
2067 * tcp.h: Keepalive values can be configured at compile time, but don't change
2068 this unless you know what you're doing (default are RFC1122 compliant).
2070 2007-03-08 Frédéric Bernon
2071 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2072 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2073 on UDP sockets/netconn.
2075 2007-03-08 Simon Goldschmidt
2076 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2078 2007-03-06 Frédéric Bernon
2079 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2080 Implement SO_RCVTIMEO on UDP sockets/netconn.
2082 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2083 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2084 on the stack and remove the API msg type from memp
2086 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2087 * sockets.h, sockets.c: Move socket initialization to new
2088 lwip_socket_init() function.
2089 NOTE: this changes the API with ports. Ports will have to be
2090 updated to call lwip_socket_init() now.
2092 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2093 * api_lib.c: Use memcpy in netbuf_copy_partial.
2098 2008-03-17 Frédéric Bernon, Ed Kerekes
2099 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2100 some problems to fill the IP header on some targets, use now the
2101 ip.h macros to do it).
2103 2008-03-13 Frédéric Bernon
2104 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2105 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2106 TCP connection caused a crash. Note that using (lwip_)recvfrom
2107 like this is a bit slow and that using (lwip)getpeername is the
2108 good lwip way to do it (so, using recv is faster on tcp sockets).
2110 2008-03-12 Frédéric Bernon, Jonathan Larmour
2111 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2112 recv_raw() does not consume data", and the ping sample (with
2113 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2114 returned the IP payload, without the IP header).
2116 2008-03-04 Jonathan Larmour
2117 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2118 and/or warnings on some systems where mem_size_t and size_t differ.
2119 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2121 2008-03-04 Kieran Mansley (contributions by others)
2122 * Numerous small compiler error/warning fixes from contributions to
2123 mailing list after 1.3.0 release candidate made.
2125 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2126 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2128 2008-01-15 Kieran Mansley
2129 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2130 prevented from sending by a small send window, not just a zero
2133 2008-01-09 Jonathan Larmour
2134 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2135 conflict with Linux system headers.
2137 2008-01-06 Jonathan Larmour
2138 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2139 address entirely on receiving a DHCPNAK, and restarting discovery.
2141 2007-12-21 Simon Goldschmidt
2142 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2143 is not protected" by using new macros for interlocked access to modify/test
2144 netconn->recv_avail.
2146 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2147 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2149 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2150 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2151 of silly window avoidance and prevent lwIP from shrinking the window)
2153 2007-12-04 Simon Goldschmidt
2154 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2155 data packet was lost): add assert that all segment lists are empty in
2156 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2157 state from LAST_ACK in tcp_process
2159 2007-12-02 Simon Goldschmidt
2160 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2161 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2162 has to be set to 0 in lwipopts.h
2164 2007-12-02 Simon Goldschmidt
2165 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2166 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2167 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2168 This is a fix for thread-safety and allocates all items needed for a netconn
2169 when the netconn is created.
2171 2007-11-30 Simon Goldschmidt
2172 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2173 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2174 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2175 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2177 2007-11-27 Simon Goldschmidt
2178 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2179 letting ip_route only use netifs that are up.
2181 2007-11-27 Simon Goldschmidt
2182 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2183 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2184 sockets block most operations once they have seen a fatal error.
2186 2007-11-27 Simon Goldschmidt
2187 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2188 netif to send as an argument (to be able to send on netifs that are down).
2190 2007-11-26 Simon Goldschmidt
2191 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2194 2007-11-21 Simon Goldschmidt
2195 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2196 Fixed the nagle algorithm; nagle now also works for all raw API applications
2197 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2199 2007-11-12 Frédéric Bernon
2200 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2201 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2202 context in do_getaddr.
2204 2007-11-10 Simon Goldschmidt
2205 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2206 happen any time). Now the packet simply isn't enqueued when out of memory.
2208 2007-11-01 Simon Goldschmidt
2209 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2210 TCP_MSS if that is smaller) as long as no MSS option is received from the
2213 2007-11-01 Simon Goldschmidt
2214 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2215 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2216 sending our configured TCP_MSS instead of the one received).
2218 2007-11-01 Simon Goldschmidt
2219 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2220 calculated based on the configured TCP_MSS, not on the MSS option received
2223 2007-10-09 Simon Goldschmidt
2224 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2225 short and also was generated wrong if checksum coverage != tot_len;
2226 receive: checksum was calculated wrong if checksum coverage != tot_len
2228 2007-10-08 Simon Goldschmidt
2229 * mem.c: lfree was not updated in mem_realloc!
2231 2007-10-07 Frédéric Bernon
2232 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2233 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2234 this change cause an API breakage for netconn_addr, since a parameter
2235 type change. Any compiler should cause an error without any changes in
2236 yours netconn_peer calls (so, it can't be a "silent change"). It also
2237 reduce a little bit the footprint for socket layer (lwip_getpeername &
2238 lwip_getsockname use now a common lwip_getaddrname function since
2239 netconn_peer & netconn_addr have the same parameters).
2241 2007-09-20 Simon Goldschmidt
2242 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2243 by checking tcp_tw_pcbs also
2245 2007-09-19 Simon Goldschmidt
2246 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2248 2007-09-15 Mike Kleshov
2249 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2251 2007-09-06 Frédéric Bernon
2252 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2253 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2254 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2255 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2257 2007-08-30 Frédéric Bernon
2258 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2259 and fix some coding style.
2261 2007-08-28 Frédéric Bernon
2262 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2263 kind of packets. These packets are considered like Ethernet packets (payload
2264 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2265 are considered like IP packets (payload pointing to iphdr).
2267 2007-08-27 Frédéric Bernon
2268 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2269 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2270 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2272 2007-08-24 Kieran Mansley
2273 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2274 compiler (Paradigm C++)
2276 2007-08-09 Frédéric Bernon, Bill Florac
2277 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2278 Introduce IGMP_STATS to centralize statistics management.
2280 2007-08-09 Frédéric Bernon, Bill Florac
2281 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2282 packet on a udp pcb binded on an netif's IP address, and not on "any".
2284 2007-08-09 Frédéric Bernon, Bill Florac
2285 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2286 This is mainly on using lookup/lookfor, and some coding styles...
2288 2007-07-26 Frédéric Bernon (and "thedoctor")
2289 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2291 2007-07-25 Simon Goldschmidt
2292 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2293 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2294 (tcp_output is called again later from tcp timers).
2296 2007-07-25 Simon Goldschmidt
2297 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2298 copy_from_pbuf, which illegally modified the given pbuf.
2300 2007-07-25 Simon Goldschmidt
2301 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2302 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2304 2007-07-24 Simon Goldschmidt
2305 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2306 correct state (must be CLOSED).
2308 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2309 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2310 allocation. It now returns NULL.
2312 2007-07-13 Frédéric Bernon
2313 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2316 2007-07-13 Frédéric Bernon
2317 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2318 because current code doesn't follow rawapi.txt documentation.
2320 2007-07-13 Kieran Mansley
2321 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2322 out of sequence processing of received packets
2324 2007-07-03 Simon Goldschmidt
2325 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2326 assumption is made that this pbuf is in one piece (i.e. not chained). These
2327 assumptions clash with the possibility of converting to fully pool-based
2328 pbuf implementations, where PBUF_RAM pbufs might be chained.
2330 2007-07-03 Simon Goldschmidt
2331 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2332 when closing tcp netconns: removed conn->sem, less context switches when
2333 closing, both netconn_close and netconn_delete should safely close tcp
2336 2007-07-02 Simon Goldschmidt
2337 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2338 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2339 to cache ARP table indices with each pcb instead of single-entry cache for
2342 2007-07-02 Simon Goldschmidt
2343 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2344 warnings when assigning to smaller types.
2346 2007-06-28 Simon Goldschmidt
2347 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2349 2007-06-28 Simon Goldschmidt
2350 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2351 a segment contained chained pbufs)
2353 2007-06-28 Frédéric Bernon
2354 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2355 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2356 possible to define this macro in your own lwipopts.h to always use C library's
2357 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2359 2007-06-28 Frédéric Bernon
2360 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2361 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2362 in api_lib/api_msg (use pointers and not type with table, etc...)
2364 2007-06-26 Simon Goldschmidt
2365 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2367 2007-06-25 Simon Goldschmidt
2368 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2369 for udp packets with no matching pcb.
2371 2007-06-25 Simon Goldschmidt
2372 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2373 could get udp input packets if the remote side matched.
2375 2007-06-13 Simon Goldschmidt
2376 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2377 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2379 2007-06-13 Simon Goldschmidt
2380 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2381 -> netconn_new_..() does not allocate a new connection for unsupported
2384 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2385 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2386 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2388 2007-06-13 Frédéric Bernon, Matthias Weisser
2389 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2390 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2391 some macro names collision with some OS macros.
2393 2007-06-11 Simon Goldschmidt
2394 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2395 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2396 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2399 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2400 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2401 where TCP flags wasn't initialized in tcp_keepalive.
2403 2007-06-03 Simon Goldschmidt
2404 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2405 registered, p->payload was modified without modifying p->len if sending
2406 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2408 2007-06-03 Simon Goldschmidt
2409 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2410 re-used the input pbuf even if that didn't have enough space to include the
2411 link headers. Now the space is tested and a new pbuf is allocated for the
2412 echo response packet if the echo request pbuf isn't big enough.
2414 2007-06-01 Simon Goldschmidt
2415 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2417 2007-05-23 Frédéric Bernon
2418 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2419 allocated by do_listen if success) and netconn_accept errors handling. In
2420 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2421 by ASSERT, except for netconn_delete.
2423 2007-05-23 Frédéric Bernon
2424 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2425 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2426 directly close the recvmbox).
2428 2007-05-22 Simon Goldschmidt
2429 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2430 bound but unconnected (and non-listening) tcp_pcbs.
2432 2007-05-22 Frédéric Bernon
2433 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2434 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2435 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2436 like "sys_timeout" in their application threads.
2438 2007-05-22 Frédéric Bernon
2439 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2440 which parameters are used by which do_xxx function, and to avoid "misusing"
2441 parameters (patch #5938).
2443 2007-05-22 Simon Goldschmidt
2444 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2445 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2446 is only 8 bits wide. This affects the api, as there, the protocol was
2449 2007-05-18 Simon Goldschmidt
2450 * memp.c: addition to patch #5913: smaller pointer was returned but
2451 memp_memory was the same size -> did not save memory.
2453 2007-05-16 Simon Goldschmidt
2454 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2457 2007-05-16 Simon Goldschmidt
2458 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2459 as the one of the netif used for sending to prevent sending from old
2460 addresses after a netif address gets changed (partly fixes bug #3168).
2462 2007-05-16 Frédéric Bernon
2463 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2464 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2465 tcpip_init) because we have to be sure that network interfaces are already
2466 added (mac filter is updated only in igmp_init for the moment).
2468 2007-05-16 Simon Goldschmidt
2469 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2470 into sys_arch_sem_wait calls to prevent timers from running while waiting
2471 for the heap. This fixes bug #19167.
2473 2007-05-13 Simon Goldschmidt
2474 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2475 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2478 2007-05-07 Simon Goldschmidt
2479 * mem.c: Another attempt to fix bug #17922.
2481 2007-05-04 Simon Goldschmidt
2482 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2483 implementation so that it can be reused (don't allocate the target
2484 pbuf inside pbuf_copy()).
2486 2007-05-04 Simon Goldschmidt
2487 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2488 to save a little RAM (next pointer of memp is not used while not in pool).
2491 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2494 2007-04-23 Simon Goldschmidt
2495 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2496 in NULL reference for incoming TCP packets". Loopif has to be configured
2497 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2498 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2499 putting packets on a list that is fed to the stack by calling loopif_poll()
2500 (single-thread / NO_SYS / polling environment where e.g.
2501 netif->input() = ip_input).
2503 2007-04-17 Jonathan Larmour
2504 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2505 the difference between two u16_t's.
2506 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2507 MEMP_NUM_NETCONN in sockets.c right now.
2509 2007-04-12 Jonathan Larmour
2510 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2512 2007-04-12 Kieran Mansley
2513 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2514 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2516 2007-04-11 Simon Goldschmidt
2517 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2518 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2519 pbuf.c: removed functions no needed any more (by etharp).
2521 2007-04-11 Kieran Mansley
2522 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2523 "Constant is long" warnings with 16bit compilers. Contributed by
2524 avatar@mmlab.cse.yzu.edu.tw
2526 2007-04-05 Frédéric Bernon, Jonathan Larmour
2527 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2528 the mailbox is active". Now, the post is only done during a connect, and do_send,
2529 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2531 2007-04-03 Frédéric Bernon
2532 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2533 packets. See patch #5834.
2535 2007-03-30 Frédéric Bernon
2536 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2537 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2539 2007-03-30 Frédéric Bernon
2540 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2541 others environment defines (these were too "generic").
2543 2007-03-28 Frédéric Bernon
2544 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2545 result and can cause a crash. lwip_send now check netbuf_ref result.
2547 2007-03-28 Simon Goldschmidt
2548 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2549 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2550 defined. This is the way it should have been already (looking at
2553 2007-03-28 Kieran Mansley
2554 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2555 IP and TCP headers *and* physical link headers
2557 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2558 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2559 to send some garbage. It is not a definitive solution, but the patch does solve
2560 the problem for most cases.
2562 2007-03-22 Frédéric Bernon
2563 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2565 2007-03-22 Frédéric Bernon
2566 * api_lib.c: somes resources couldn't be freed if there was errors during
2567 netconn_new_with_proto_and_callback.
2569 2007-03-22 Frédéric Bernon
2570 * ethernetif.c: update netif->input calls to check return value. In older ports,
2571 it's a good idea to upgrade them, even if before, there could be another problem
2572 (access to an uninitialized mailbox).
2574 2007-03-21 Simon Goldschmidt
2575 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2576 by casting to unsigned).
2578 2007-03-21 Frédéric Bernon
2579 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2580 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2581 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2582 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2583 faster and more reliable communication between api_lib and tcpip.
2585 2007-03-21 Frédéric Bernon
2586 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2588 2007-03-21 Frédéric Bernon
2589 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2591 2007-03-21 Kieran Mansley
2592 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2595 2007-03-21 Kieran Mansley
2596 * Fix all uses of pbuf_header to check the return value. In some
2597 cases just assert if it fails as I'm not sure how to fix them, but
2598 this is no worse than before when they would carry on regardless
2601 2007-03-21 Kieran Mansley
2602 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2603 comment out missing header include in icmp.c
2605 2007-03-20 Frédéric Bernon
2606 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2607 synchronized with memp.h.
2609 2007-03-20 Frédéric Bernon
2610 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2611 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2612 network interfaces. Also fix a compiler warning.
2614 2007-03-20 Kieran Mansley
2615 * udp.c: Only try and use pbuf_header() to make space for headers if
2616 not a ROM or REF pbuf.
2618 2007-03-19 Frédéric Bernon
2619 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2622 2007-03-19 Frédéric Bernon
2623 * Remove unimplemented "memp_realloc" function from memp.h.
2625 2007-03-11 Simon Goldschmidt
2626 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2629 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2630 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2631 (missing `const' qualifier in socket functions), to get more compatible to
2632 standard POSIX sockets.
2634 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2635 * sockets.c: Add asserts inside bind, connect and sendto to check input
2636 parameters. Remove excessive set_errno() calls after get_socket(), because
2637 errno is set inside of get_socket(). Move last sock_set_errno() inside
2640 2007-03-09 Simon Goldschmidt
2641 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2642 was allocated too small.
2644 2007-03-06 Simon Goldschmidt
2645 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2646 the stack from concurrent access.
2648 2007-03-06 Frédéric Bernon, Dmitry Potapov
2649 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2650 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2652 2007-03-06 Simon Goldschmidt
2653 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2654 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2656 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2657 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2658 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2659 Allow to do ARP processing for incoming packets inside tcpip_thread
2660 (protecting ARP layer against concurrent access). You can also disable
2661 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2662 Older ports have to use tcpip_ethinput.
2664 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2665 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2666 from pointer target type"
2668 2007-03-05 Frédéric Bernon
2669 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2670 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2672 2007-03-04 Frédéric Bernon
2673 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2676 2007-03-04 Frédéric Bernon
2677 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2679 The api_msg struct stay on the stack (not moved to netconn struct).
2681 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2682 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2683 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2684 Also fixed cast warning in pbuf_alloc()
2686 2007-03-04 Simon Goldschmidt
2687 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2688 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2690 2007-03-03 Frédéric Bernon
2691 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2692 It is static, and never used in udp.c except udp_init().
2694 2007-03-02 Simon Goldschmidt
2695 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2696 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2697 initialized before tcpip_thread is running (e.g. before OS is started)
2699 2007-03-02 Frédéric Bernon
2700 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2703 2007-02-28 Kieran Mansley
2704 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2705 outside the region of the pbuf by pbuf_header()
2707 2007-02-28 Kieran Mansley
2708 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2709 when supplied timeout is also non-zero
2713 2006-12-05 Leon Woestenberg
2714 * CHANGELOG: Mention STABLE-1.2.0 release.
2718 2006-12-01 Christiaan Simons
2719 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2720 Note this is a workaround. Currently I have no other options left.
2722 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2723 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2724 to include/lwip/opt.h.
2725 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2726 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2727 * opt.h: Add above new options.
2729 2006-08-18 Christiaan Simons
2730 * tcp_{in,out}.c: added SNMP counters.
2731 * ipv4/ip.c: added SNMP counters.
2732 * ipv4/ip_frag.c: added SNMP counters.
2734 2006-08-08 Christiaan Simons
2735 * etharp.{c,h}: added etharp_find_addr() to read
2736 (stable) ethernet/IP address pair from ARP table
2738 2006-07-14 Christiaan Simons
2739 * mib_structs.c: added
2740 * include/lwip/snmp_structs.h: added
2741 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2743 2006-07-06 Christiaan Simons
2744 * snmp/asn1_{enc,dec}.c added
2746 * snmp/msg_{in,out}.c added
2747 * include/lwip/snmp_asn1.h added
2748 * include/lwip/snmp_msg.h added
2749 * doc/snmp_agent.txt added
2751 2006-03-29 Christiaan Simons
2752 * inet.c, inet.h: Added platform byteswap support.
2753 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2754 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2758 2006-11-30 Christiaan Simons
2759 * dhcp.c: Fixed false triggers of request_timeout.
2761 2006-11-28 Christiaan Simons
2762 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2764 2006-10-11 Christiaan Simons
2765 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2766 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2767 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2768 identifier from 170 to 136 (bug #17574).
2770 2006-10-10 Christiaan Simons
2771 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2773 2006-08-17 Christiaan Simons
2774 * udp.c: Fixed bug #17200, added check for broadcast
2775 destinations for PCBs bound to a unicast address.
2777 2006-08-07 Christiaan Simons
2778 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2780 2006-06-27 Christiaan Simons
2781 * api_msg.c: Applied patch for cold case (bug #11135).
2782 In accept_function() ensure newconn->callback is always initialized.
2784 2006-06-15 Christiaan Simons
2785 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2786 facilitate printing of mem_size_t and u16_t statistics.
2788 2006-06-14 Christiaan Simons
2789 * api_msg.c: Applied patch #5146 to handle allocation failures
2790 in accept() by Kevin Lawson.
2792 2006-05-26 Christiaan Simons
2793 * api_lib.c: Removed conn->sem creation and destruction
2794 from netconn_write() and added sys_sem_new to netconn_new_*.
2798 2006-03-03 Christiaan Simons
2799 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2800 access and added pbuf_alloc() return value checks.
2802 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2803 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2804 now handled by the checksum routine properly.
2806 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2808 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2810 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2811 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2812 submitted by Mitrani Hiroshi.
2814 2005-12-15 Christiaan Simons
2815 * inet.c: Disabled the added summing routine to preserve code space.
2817 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2818 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2819 Added Curt McDowell's optimized checksumming routine for future
2820 inclusion. Need to create test case for unaliged, aligned, odd,
2821 even length combination of cases on various endianess machines.
2823 2005-12-09 Christiaan Simons
2824 * inet.c: Rewrote standard checksum routine in proper portable C.
2826 2005-11-25 Christiaan Simons
2827 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2828 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2829 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2831 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2832 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2833 routine by Peter Jolasson.
2834 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2836 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2837 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2838 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2840 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2841 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2843 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2844 * udp.c: UDP pcb->recv() was called even when it was NULL.
2848 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2849 * etharp.*: Disabled multiple packets on the ARP queue.
2850 This clashes with TCP queueing.
2852 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2853 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2854 Halved the ARP period, doubled the period counts.
2855 ETHARP_MAX_PENDING now should be at least 2. This prevents
2856 the counter from reaching 0 right away (which would allow
2857 too little time for ARP responses to be received).
2859 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2860 * dhcp.c: Decline messages were not multicast but unicast.
2861 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2862 Do not try hard to insert arbitrary packet's source address,
2863 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2864 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2865 querying an address will see it appear in the cache (DHCP could
2866 suffer from this when a server invalidly gave an in-use address.)
2867 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2868 comparing network addresses (identifiers), not the network masks
2870 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2871 IP address actually belongs to the network of the given interface.
2873 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2874 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2878 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2879 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2880 even if one is already pending, if the rcv_wnd is above a threshold
2881 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2882 delayed ACK in order to open the window if the stack is only receiving data.
2884 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2885 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2887 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2888 * etharp.c: Make sure the first pbuf queued on an ARP entry
2889 is properly ref counted.
2891 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2892 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2893 warnings about comparison.
2894 * pbuf.c: Stopped compiler complaining of empty if statement
2895 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2896 * tcp.c: Stopped compiler complaining of empty if statement
2897 when LWIP_DEBUGF() empty.
2898 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2899 * inet.c: Added a couple of casts to quiet the compiler.
2900 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2902 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2903 * inet.c: Made data types consistent in inet_ntoa().
2904 Added casts for return values of checksum routines, to pacify compiler.
2905 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2906 Small corrections to some debugging statements, to pacify compiler.
2908 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2909 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2910 * ethernetif.c Updated low_level_output() to match prototype for
2911 netif->linkoutput and changed low_level_input() similarly for consistency.
2912 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2913 of raw_recv() in raw.h and so avoid compiler error.
2914 * sockets.c: Added trivial (int) cast to keep compiler happier.
2915 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2921 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2922 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2923 your cc.h file defines this either 1 or 0. If non-defined,
2925 * .c: Added <string.h> and <errno.h> includes where used.
2926 * etharp.c: Made some array indices unsigned.
2928 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2929 * netif.*: Added netif_set_up()/down().
2930 * dhcp.c: Changes to restart program flow.
2932 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2933 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2934 single-pass lookup for different candidates. Should exploit locality.
2936 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2937 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2938 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2939 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2940 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2944 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2945 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2946 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2947 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2948 is to prefix the 14-bit Ethernet headers with two padding bytes.
2950 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2951 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2952 * etharp.c: Fixed the case where the packet that initiates the ARP request
2953 is not queued, and gets lost. Fixed the case where the packets destination
2954 address is already known; we now always queue the packet and perform an ARP
2961 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2962 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2963 * Fixed two possible NULL references in rare cases.
2969 * Fixed DHCP which did not include the IP address in DECLINE messages.
2973 * etharp.c has been hauled over a bit.
2979 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2980 * Packets sent from ARP queue had invalid source hardware address.
2984 * Pass-by ARP requests do now update the cache.
2988 * No longer dependent on ctype.h.
2989 * New socket options.
2990 * Raw IP pcb support.
2996 * Some debug formatters and casts fixed.
2997 * Numereous fixes in PPP.
3001 * DEBUGF now is LWIP_DEBUGF
3002 * pbuf_dechain() has been re-enabled.
3003 * Mentioned the changed use of CVS branches in README.
3009 * Fixed pool pbuf memory leak in pbuf_alloc().
3010 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3011 Reported by Savin Zlobec.
3013 * PBUF_POOL chains had their tot_len field not set for non-first
3014 pbufs. Fixed in pbuf_alloc().
3018 * Added PPP stack contributed by Marc Boucher
3022 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3024 * ARP queueuing now queues the latest packet instead of the first.
3025 This is the RFC recommended behaviour, but can be overridden in
3032 * TCP has been fixed to deal with the new use of the pbuf->ref
3035 * DHCP dhcp_inform() crash bug fixed.
3039 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3040 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3041 Implemented by David Haas.
3047 * The packet buffer implementation has been enhanced to support
3048 zero-copy and copy-on-demand for packet buffers which have their
3049 payloads in application-managed memory.
3050 Implemented by David Haas.
3052 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3053 if an outgoing packet can be directly sent on the link, or perform
3054 a copy-on-demand when necessary.
3056 The application can safely assume the packet is sent, and the RAM
3057 is available to the application directly after calling udp_send()
3058 or similar function.
3062 * ARP_QUEUEING should now correctly work for all cases, including
3064 Implemented by Leon Woestenberg.
3068 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3069 to a '0.0.0.0' IP address.
3071 * The packet buffer implementation is changed. The pbuf->ref counter
3072 meaning has changed, and several pbuf functions have been
3073 adapted accordingly.
3075 * netif drivers have to be changed to set the hardware address length field
3076 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3077 See the contrib/ports/c16x cs8900 driver as a driver example.
3079 * netif's have a dhcp field that must be initialized to NULL by the driver.
3080 See the contrib/ports/c16x cs8900 driver as a driver example.
3082 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3083 logged in CVS but have not been explained here.
3085 (0.5.3) Changes since version 0.5.2
3089 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3090 threads because it wasn't protected by semaphores.
3094 * struct ip_addr now packed.
3096 * The name of the time variable in arp.c has been changed to ctime
3097 to avoid conflicts with the time() function.
3099 (0.5.2) Changes since version 0.5.1
3103 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3107 * A bug in tcp_parseopt() could cause the stack to hang because of a
3108 malformed TCP option.
3110 * The address of new connections in the accept() function in the BSD
3111 socket library was not handled correctly.
3113 * pbuf_dechain() did not update the ->tot_len field of the tail.
3115 * Aborted TCP connections were not handled correctly in all
3120 * All protocol header structs are now packed.
3122 * The ->len field in the tcp_seg structure now counts the actual
3123 amount of data, and does not add one for SYN and FIN segments.
3125 (0.5.1) Changes since version 0.5.0
3129 * Possible to run as a user process under Linux.
3131 * Preliminary support for cross platform packed structs.
3133 * ARP timer now implemented.
3137 * TCP output queue length was badly initialized when opening
3140 * TCP delayed ACKs were not sent correctly.
3142 * Explicit initialization of BSS segment variables.
3144 * read() in BSD socket library could drop data.
3146 * Problems with memory alignment.
3148 * Situations when all TCP buffers were used could lead to
3151 * TCP MSS option wasn't parsed correctly.
3153 * Problems with UDP checksum calculation.
3155 * IP multicast address tests had endianess problems.
3157 * ARP requests had wrong destination hardware address.
3161 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3163 * A ->linkoutput() member was added to struct netif.
3165 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3167 * ntoh* macros are now null definitions for big endian CPUs.
3169 (0.5.0) Changes since version 0.4.2
3173 * Redesigned operating system emulation layer to make porting easier.
3175 * Better control over TCP output buffers.
3177 * Documenation added.
3181 * Locking issues in buffer management.
3183 * Bugfixes in the sequential API.
3185 * IP forwarding could cause memory leakage. This has been fixed.
3189 * Directory structure somewhat changed; the core/ tree has been
3192 (0.4.2) Changes since version 0.4.1
3196 * Experimental ARP implementation added.
3198 * Skeleton Ethernet driver added.
3200 * Experimental BSD socket API library added.
3204 * In very intense situations, memory leakage could occur. This has
3209 * Variables named "data" and "code" have been renamed in order to
3210 avoid name conflicts in certain compilers.
3212 * Variable++ have in appliciable cases been translated to ++variable
3213 since some compilers generate better code in the latter case.
3215 (0.4.1) Changes since version 0.4
3219 * TCP: Connection attempts time out earlier than data
3220 transmissions. Nagle algorithm implemented. Push flag set on the
3221 last segment in a burst.
3223 * UDP: experimental support for UDP-Lite extensions.
3227 * TCP: out of order segments were in some cases handled incorrectly,
3228 and this has now been fixed. Delayed acknowledgements was broken
3229 in 0.4, has now been fixed. Binding to an address that is in use
3230 now results in an error. Reset connections sometimes hung an
3231 application; this has been fixed.
3233 * Checksum calculation sometimes failed for chained pbufs with odd
3234 lengths. This has been fixed.
3236 * API: a lot of bug fixes in the API. The UDP API has been improved
3237 and tested. Error reporting and handling has been
3238 improved. Logical flaws and race conditions for incoming TCP
3239 connections has been found and removed.
3241 * Memory manager: alignment issues. Reallocating memory sometimes
3242 failed, this has been fixed.
3244 * Generic library: bcopy was flawed and has been fixed.
3248 * API: all datatypes has been changed from generic ones such as
3249 ints, to specified ones such as u16_t. Functions that return
3250 errors now have the correct type (err_t).
3252 * General: A lot of code cleaned up and debugging code removed. Many
3253 portability issues have been fixed.
3255 * The license was changed; the advertising clause was removed.
3259 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3260 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3263 (0.4) Changes since version 0.3.1
3265 * Memory management has been radically changed; instead of
3266 allocating memory from a shared heap, memory for objects that are
3267 rapidly allocated and deallocated is now kept in pools. Allocation
3268 and deallocation from those memory pools is very fast. The shared
3269 heap is still present but is used less frequently.
3271 * The memory, memory pool, and packet buffer subsystems now support
3272 4-, 2-, or 1-byte alignment.
3274 * "Out of memory" situations are handled in a more robust way.
3276 * Stack usage has been reduced.
3278 * Easier configuration of lwIP parameters such as memory usage,
3279 TTLs, statistics gathering, etc. All configuration parameters are
3280 now kept in a single header file "lwipopts.h".
3282 * The directory structure has been changed slightly so that all
3283 architecture specific files are kept under the src/arch
3286 * Error propagation has been improved, both in the protocol modules
3289 * The code for the RTXC architecture has been implemented, tested
3292 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3293 the Internet checksum modules.
3295 * Bugs related to porting between a 32-bit and a 16-bit architecture
3296 have been found and corrected.
3298 * The license has been changed slightly to conform more with the
3299 original BSD license, including the advertisement clause.
3301 (0.3.1) Changes since version 0.3
3303 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3304 RAM never returned the RAM when the pbuf was deallocated.
3306 * TCP congestion control, window updates and retransmissions did not
3307 work correctly. This has now been fixed.
3309 * Bugfixes in the API.
3311 (0.3) Changes since version 0.2
3313 * New and improved directory structure. All include files are now
3314 kept in a dedicated include/ directory.
3316 * The API now has proper error handling. A new function,
3317 netconn_err(), now returns an error code for the connection in
3320 * Improvements in the memory management subsystem. The system now
3321 keeps a pointer to the lowest free memory block. A new function,
3322 mem_malloc2() tries to allocate memory once, and if it fails tries
3323 to free some memory and retry the allocation.
3325 * Much testing has been done with limited memory
3326 configurations. lwIP now does a better job when overloaded.
3328 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3330 * Many bugfixes in the TCP code:
3332 - Fixed a bug in tcp_close().
3334 - The TCP receive window was incorrectly closed when out of
3335 sequence segments was received. This has been fixed.
3337 - Connections are now timed-out of the FIN-WAIT-2 state.
3339 - The initial congestion window could in some cases be too
3340 large. This has been fixed.
3342 - The retransmission queue could in some cases be screwed up. This
3345 - TCP RST flag now handled correctly.
3347 - Out of sequence data was in some cases never delivered to the
3348 application. This has been fixed.
3350 - Retransmitted segments now contain the correct acknowledgment
3351 number and advertised window.
3353 - TCP retransmission timeout backoffs are not correctly computed
3354 (ala BSD). After a number of retransmissions, TCP now gives up
3357 * TCP connections now are kept on three lists, one for active
3358 connections, one for listening connections, and one for
3359 connections that are in TIME-WAIT. This greatly speeds up the fast
3360 timeout processing for sending delayed ACKs.
3362 * TCP now provides proper feedback to the application when a
3363 connection has been successfully set up.
3365 * More comments have been added to the code. The code has also been
3366 somewhat cleaned up.
3368 (0.2) Initial public release.