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 * dhcp.c: fixed bug #36645: Calling dhcp_release before dhcp_start
87 2012-08-13: Simon Goldschmidt
88 * msg_out.c: fixed bug #36840 snmp_send_trap() NULL de-reference if traps
89 configured but no interfaces available
91 2012-08-13: Simon Goldschmidt
92 * dns.c: fixed bug #36899 DNS TTL 0 is cached for a long time
94 2012-05-11: Simon Goldschmidt (patch by Marty)
95 * memp.c: fixed bug #36412: memp.c does not compile when
96 MEMP_OVERFLOW_CHECK > zero and MEMP_SEPARATE_POOLS == 1
98 2012-05-08: Simon Goldschmidt
99 * tcp_out.c: fixed bug #36380: unsent_oversize mismatch in 1.4.1RC1 (this was
100 a debug-check issue only)
102 2012-05-03: Simon Goldschmidt (patch by Sylvain Rochet)
103 * ppp.c: fixed bug #36283 (PPP struct used on header size computation and
106 2012-05-03: Simon Goldschmidt (patch by David Empson)
107 * ppp.c: fixed bug #36388 (PPP: checksum-only in last pbuf leads to pbuf with
110 2012-03-27: Simon Goldschmidt
111 * vj.c: fixed bug #35756 header length calculation problem in ppp/vj.c
113 2012-03-27: Simon Goldschmidt (patch by Mason)
114 * tcp_out.c: fixed bug #35945: SYN packet should provide the recv MSS not the
117 2012-03-25: Simon Goldschmidt
118 * api_msg.c: Fixed bug #35817: do_connect() invalidly signals op_completed
119 for UDP/RAW with LWIP_TCPIP_CORE_LOCKING==1
121 2012-03-25: Simon Goldschmidt
122 * api_msg.h, api_lib.c, api_msg.c, netifapi.c: fixed bug #35931: Name space
123 pollution in api_msg.c and netifapi.c
125 2012-03-22: Simon Goldschmidt
126 * ip4.c: fixed bug #35927: missing refragmentaion in ip_forward
128 2012-03-20: Simon Goldschmidt (patch by Mason)
129 * netdb.c: fixed bug #35907: lwip_gethostbyname_r returns an invalid h_addr_list
131 2012-03-12: Simon Goldschmidt (patch by Bostjan Meglic)
132 * ppp.c: fixed bug #35809: PPP GetMask(): Compiler warning on big endian,
133 possible bug on little endian system
135 2012-02-23: Simon Goldschmidt
136 * etharp.c: fixed bug #35595: Impossible to send broadcast without a gateway
137 (introduced when fixing bug# 33551)
139 2012-02-16: Simon Goldschmidt
140 * ppp.c: fixed pbuf leak when PPP session is aborted through pppSigHUP()
141 (bug #35541: PPP Memory Leak)
143 2012-02-16: Simon Goldschmidt
144 * etharp.c: fixed bug #35531: Impossible to send multicast without a gateway
145 (introduced when fixing bug# 33551)
147 2012-02-16: Simon Goldschmidt (patch by Stéphane Lesage)
148 * msg_in.c, msg_out.c: fixed bug #35536 SNMP: error too big response is malformed
150 2012-02-15: Simon Goldschmidt
151 * init.c: fixed bug #35537: MEMP_NUM_* sanity checks should be disabled with
154 2012-02-12: Simon Goldschmidt
155 * tcp.h, tcp_in.c, tcp_out.c: partly fixed bug #25882: TCP hangs on
156 MSS > pcb->snd_wnd (by not creating segments bigger than half the window)
158 2012-02-11: Simon Goldschmidt
159 * tcp.c: fixed bug #35435: No pcb state check before adding it to time-wait
162 2012-01-22: Simon Goldschmidt
163 * tcp.c, tcp_in.c: fixed bug #35305: pcb may be freed too early on shutdown(WR)
165 2012-01-21: Simon Goldschmidt
166 * tcp.c: fixed bug #34636: FIN_WAIT_2 - Incorrect shutdown of TCP pcb
168 2012-01-20: Simon Goldschmidt
169 * dhcp.c: fixed bug #35151: DHCP asserts on incoming option lengths
171 2012-01-20: Simon Goldschmidt
172 * pbuf.c: fixed bug #35291: NULL pointer in pbuf_copy
174 2011-11-25: Simon Goldschmidt
175 * tcp.h/.c, tcp_impl.h, tcp_in.c: fixed bug #31177: tcp timers can corrupt
176 tcp_active_pcbs in some cases
178 2011-11-23: Simon Goldschmidt
179 * sys.c: fixed bug #34884: sys_msleep() body needs to be surrounded with
182 2011-11-22: Simon Goldschmidt
183 * netif.c, etharp.h/.c: fixed bug #34684: Clear the arp table cache when
184 netif is brought down
186 2011-10-28: Simon Goldschmidt
187 * tcp_in.c: fixed bug #34638: Dead code in tcp_receive - pcb->dupacks
189 2011-10-23: Simon Goldschmidt
190 * mem.c: fixed bug #34429: possible memory corruption with
191 LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT set to 1
193 2011-10-18: Simon Goldschmidt
194 * arch.h, netdb.c: fixed bug #34592: lwip_gethostbyname_r uses nonstandard
197 2011-10-18: Simon Goldschmidt
198 * opt.h: fixed default values of TCP_SNDLOWAT and TCP_SNDQUEUELOWAT for small
199 windows (bug #34176 select after non-blocking send times out)
201 2011-10-18: Simon Goldschmidt
202 * tcp_impl.h, tcp_out.c: fixed bug #34587: TCP_BUILD_MSS_OPTION doesn't
203 consider netif->mtu, causes slow network
205 2011-10-18: Simon Goldschmidt
206 * sockets.c: fixed bug #34581 missing parentheses in udplite sockets code
208 2011-10-18: Simon Goldschmidt
209 * sockets.h: fixed bug #34580 fcntl() is missing in LWIP_COMPAT_SOCKETS
211 2011-10-17: Simon Goldschmidt
212 * api_msg.c: fixed bug #34569: shutdown(SHUT_WR) crashes netconn/socket api
214 2011-10-13: Simon Goldschmidt
215 * tcp_in.c, tcp_out.c: fixed bug #34517 (persist timer is started although no
216 zero window is received) by starting the persist timer when a zero window is
217 received, not when we have more data queued for sending than fits into the
220 2011-10-13: Simon Goldschmidt
221 * def.h, timers.c: fixed bug #34541: LWIP_U32_DIFF is unnecessarily complex
223 2011-10-13: Simon Goldschmidt
224 * sockets.c, api_lib.c: fixed bug #34540: compiler error when CORE_LOCKING is
225 used and not all protocols are enabled
227 2011-10-12: Simon Goldschmidt
228 * pbuf.c: fixed bug #34534: Error in sending fragmented IP if MEM_ALIGNMENT > 4
230 2011-10-09: Simon Goldschmidt
231 * tcp_out.c: fixed bug #34426: tcp_zero_window_probe() transmits incorrect
232 byte value when pcb->unacked != NULL
234 2011-10-09: Simon Goldschmidt
235 * ip4.c: fixed bug #34447 LWIP_IP_ACCEPT_UDP_PORT(dst_port) wrong
237 2011-09-27: Simon Goldschmidt
238 * tcp_in.c, tcp_out.c: Reset pcb->unsent_oversize in 2 more places...
240 2011-09-27: Simon Goldschmidt
241 * tcp_in.c: fixed bug #28288: Data after FIN in oos queue
243 2011-09-27: Simon Goldschmidt
244 * dhcp.c: fixed bug #34406 dhcp_option_hostname() can overflow the pbuf
246 2011-09-24: Simon Goldschmidt
247 * mem.h: fixed bug #34377 MEM_SIZE_F is not defined if MEM_LIBC_MALLOC==1
249 2011-09-23: Simon Goldschmidt
250 * pbuf.h, tcp.c, tcp_in.c: fixed bug #33871: rejecting TCP_EVENT_RECV() for
251 the last packet including FIN can lose data
253 2011-09-22: Simon Goldschmidt
254 * tcp_impl.h: fixed bug #34355: nagle does not take snd_buf/snd_queuelen into
257 2011-09-21: Simon Goldschmidt
258 * opt.h: fixed default value of TCP_SND_BUF to not violate the sanity checks
261 2011-09-20: Simon Goldschmidt
262 * timers.c: fixed bug #34337 (possible NULL pointer in sys_check_timeouts)
264 2011-09-11: Simon Goldschmidt
265 * tcp_out.c: use pcb->mss instead of TCP_MSS for preallocate mss-sized pbufs
268 2011-09-09: Simon Goldschmidt
269 * udp.c: fixed bug #34072: UDP broadcast is received from wrong UDP pcb if
272 2011-09-03: Simon Goldschmidt
273 * tcp_in.c: fixed bug #33952 PUSH flag in incoming packet is lost when packet
274 is aggregated and sent to application
276 2011-09-01: Simon Goldschmidt
277 * opt.h: fixed bug #31809 LWIP_EVENT_API in opts.h is inconsistent compared
280 2011-09-01: Simon Goldschmidt
281 * tcp_in.c: fixed bug #34111 RST for ACK to listening pcb has wrong seqno
283 2011-08-24: Simon Goldschmidt
284 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
286 2011-08-24: Simon Goldschmidt
287 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
288 accept() on UDP connections
290 2011-08-24: Simon Goldschmidt
291 * sockets.h: fixed bug #34057 socklen_t should be a typedef
293 2011-08-24: Simon Goldschmidt
294 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
296 2011-08-24: Simon Goldschmidt
297 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
299 2011-08-24: Simon Goldschmidt
300 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
302 2011-08-22: Simon Goldschmidt
303 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
304 merely prevents nagle from not transmitting fast after closing.)
306 2011-07-22: Simon Goldschmidt
307 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
308 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
309 lwip_send() sends as much as possible for non-blocking sockets
311 2011-07-22: Simon Goldschmidt
312 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
313 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
314 at regular intervals from main level.
316 2011-07-21: Simon Goldschmidt
317 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
318 sending an ARP request when an ARP entry is used in the last minute before
321 2011-07-04: Simon Goldschmidt
322 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
324 2011-06-26: Simon Goldschmidt
325 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
326 updating its documentation only.
328 2011-06-26: Simon Goldschmidt
329 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
332 2011-06-26: Simon Goldschmidt
333 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
341 2011-03-27: Simon Goldschmidt
342 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
343 calculate it in tcp_zero_window_probe (the only place where it was used).
345 2010-11-21: Simon Goldschmidt
346 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
349 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
350 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
351 IP_MULTICAST_LOOP at socket- and raw-API level.
353 2010-06-16: Simon Goldschmidt
354 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
355 link-layer-addressed UDP traffic to be received while a netif is down (just
356 like DHCP during configuration)
358 2010-05-22: Simon Goldschmidt
359 * many many files: bug #27352: removed packing from ip_addr_t, the packed
360 version is now only used in protocol headers. Added global storage for
361 current src/dest IP address while in input functions.
363 2010-05-16: Simon Goldschmidt
364 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
365 calculation (and use them throughout the stack where applicable)
367 2010-05-16: Simon Goldschmidt
368 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
369 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
371 2010-05-16: Simon Goldschmidt
372 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
373 MEMP pool instead of the heap
375 2010-05-13: Simon Goldschmidt
376 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
377 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
378 packets to more than one pcb.
380 2010-05-02: Simon Goldschmidt
381 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
382 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
384 2010-04-30: Simon Goldschmidt
385 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
386 take a precalculated checksum, added pbuf_fill_chksum() to copy data
387 into a pbuf and at the same time calculating the checksum for that data
389 2010-04-29: Simon Goldschmidt
390 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
391 2-byte-aligned IP addresses and MAC addresses
393 2010-04-28: Patch by Bill Auerbach
394 * ip.c: Inline generating IP checksum to save a function call
396 2010-04-14: Simon Goldschmidt
397 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
398 tcpip_thread processes messages or timeouts to implement a watchdog.
400 2010-03-28: Simon Goldschmidt
401 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
402 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
404 2010-03-27: Simon Goldschmidt
405 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
406 etharp_query to prevent unnecessary function calls (inspired by
409 2010-03-20: Simon Goldschmidt
410 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
411 since the linker cannot do this automatically to save space.
413 2010-03-20: Simon Goldschmidt
414 * opt.h, etharp.c/.h: Added support for static ARP table entries
416 2010-03-14: Simon Goldschmidt
417 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
418 when creating TCP segments, not when (re-)transmitting them.
420 2010-03-07: Simon Goldschmidt
421 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
422 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
423 This should speed up receiving data on sockets as the select code in
424 event_callback is only executed when select is waiting.
426 2010-03-06: Simon Goldschmidt
427 * tcp_out.c: task #7013 (Create option to have all packets delivered to
428 netif->output in one piece): Always copy to try to create single pbufs
431 2010-03-06: Simon Goldschmidt
432 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
433 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
434 for tcp netconns to receive pbufs, not netbufs; use that function
437 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
438 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
439 Work on tcp_enqueue: Don't waste memory when chaining segments,
440 added option TCP_OVERSIZE to prevent creating many small pbufs when
441 calling tcp_write with many small blocks of data. Instead, pbufs are
442 allocated larger than needed and the space is used for later calls to
445 2010-02-21: Simon Goldschmidt
446 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
449 2010-02-21: Simon Goldschmidt
450 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
451 implementation of tcp to make API usage cleare to application programmers
453 2010-02-14: Simon Goldschmidt/Stephane Lesage
454 * ip_addr.h: Improved some defines working on ip addresses, added faster
455 macro to copy addresses that cannot be NULL
457 2010-02-13: Simon Goldschmidt
458 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
459 blocking send operation)
461 2010-02-12: Simon Goldschmidt
462 * sockets.c/.h: Added a minimal version of posix fctl() to have a
463 standardised way to set O_NONBLOCK for nonblocking sockets.
465 2010-02-12: Simon Goldschmidt
466 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
467 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
468 and dhcp work with user-allocated structs instead of callin mem_malloc
470 2010-02-12: Simon Goldschmidt/Jeff Barber
471 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
472 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
474 2010-02-12: Simon Goldschmidt
475 * sys layer: task #10139 (Prefer statically allocated memory): converted
476 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
477 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
478 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
479 to let sys.h use binary semaphores instead of mutexes - as before)
481 2010-02-09: Simon Goldschmidt (Simon Kallweit)
482 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
483 (Restart system timeout handling)
485 2010-02-09: Simon Goldschmidt
486 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
487 netif.c) - loopif does not have to be created by the port any more,
488 just define LWIP_HAVE_LOOPIF to 1.
490 2010-02-08: Simon Goldschmidt
491 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
492 inet_ntoa_r/ipaddr_ntoa_r
494 2010-02-08: Simon Goldschmidt
495 * netif.h: Added netif_s/get_igmp_mac_filter() macros
497 2010-02-05: Simon Goldschmidt
498 * netif.h: Added function-like macros to get/set the hostname on a netif
500 2010-02-04: Simon Goldschmidt
501 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
502 make changing the actual implementation behind the typedef easier.
504 2010-02-01: Simon Goldschmidt
505 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
506 for allocating memory when getaddrinfo() is called.
508 2010-01-31: Simon Goldschmidt
509 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
510 them once instead of parsing for every option. This also removes
511 the need for mem_malloc from dhcp_recv and makes it possible to
512 correctly retrieve the BOOTP file.
514 2010-01-30: simon Goldschmidt
515 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
518 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
519 * api.h, api_msg.c, sockets.c: Added except set support in select
522 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
523 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
524 Add non-blocking support for connect (partly from patch #6860),
525 plus many cleanups in socket & netconn API.
527 2010-01-27: Simon Goldschmidt
528 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
529 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
531 2010-01-26: Simon Goldschmidt
532 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
534 2010-01-14: Simon Goldschmidt
535 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
536 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
538 2010-01-13: Simon Goldschmidt
539 * mem.c: The heap now may be moved to user-defined memory by defining
540 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
541 (patch #6966 and bug #26133)
543 2010-01-10: Simon Goldschmidt (Bill Auerbach)
544 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
547 2010-01-10: Simon Goldschmidt
548 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
549 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
551 2009-12-31: Simon Goldschmidt
552 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
553 added timers.c/.h: Separated timer implementation from semaphore/mbox
554 implementation, moved timer implementation to timers.c/.h, timers are
555 now only called from tcpip_thread or by explicitly checking them.
558 2009-12-27: Simon Goldschmidt
559 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
560 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
565 2011-04-20: Simon Goldschmidt
566 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
568 2011-04-13: Simon Goldschmidt
569 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
570 using ports in the IANA private/dynamic range (49152 through 65535).
572 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
573 * etharp.h/.c: Fixed broken VLAN support.
575 2011-03-27: Simon Goldschmidt
576 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
577 pcbs) by checking if the pcb was bound (local_port != 0).
579 2011-03-27: Simon Goldschmidt
580 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
582 2011-03-27: Simon Goldschmidt
583 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
584 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
586 2011-03-27: Simon Goldschmidt
587 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
588 is present never times out) by starting retransmission timer before checking
591 2011-03-22: Simon Goldschmidt
592 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
593 calling sio_read_abort() if the file descriptor is valid.
595 2011-03-14: Simon Goldschmidt
596 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
597 more than once can render a socket useless) since it mainly involves changing
598 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
600 2011-03-13: Simon Goldschmidt
601 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
602 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
603 use EALRADY instead of -1
605 2011-03-13: Simon Goldschmidt
606 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
607 connection has been aborted by err_tcp (since this is not a normal closing
610 2011-03-13: Simon Goldschmidt
611 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
612 with pcb->state != CLOSED
614 2011-02-17: Simon Goldschmidt
615 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
618 2011-02-17: Simon Goldschmidt
619 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
621 2011-01-24: Simon Goldschmidt
622 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
624 2010-12-02: Simon Goldschmidt
625 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
627 2010-11-23: Simon Goldschmidt
628 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
629 LWIP_SO_RCVBUF and ioctl/FIONREAD.
631 2010-11-23: Simon Goldschmidt
632 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
633 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
635 2010-11-23: Simon Goldschmidt
636 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
637 refusing 'refused_data' again.
639 2010-11-22: Simon Goldschmidt
640 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
641 after a successful nonblocking connection.
643 2010-11-22: Simon Goldschmidt
644 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
645 must be sent link-local
647 2010-11-22: Simon Goldschmidt
648 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
651 2010-11-20: Simon Goldschmidt
652 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
654 2010-11-20: Simon Goldschmidt
655 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
656 resemble other stacks.
658 2010-11-20: Simon Goldschmidt
659 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
660 no-copy TCP writes will never succeed.
662 2010-11-20: Simon Goldschmidt
663 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
664 not match documentation: return ERR_ARG instead of ERR_VAL if not
665 initialized or wrong argument.
667 2010-10-20: Simon Goldschmidt
668 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
670 2010-10-05: Simon Goldschmidt
671 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
672 replugging the network cable after an AutoIP address was assigned.
674 2010-08-10: Simon Goldschmidt
675 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
677 2010-08-03: Simon Goldschmidt
678 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
680 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
681 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
682 endian architectures)
684 2010-07-28: Simon Goldschmidt
685 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
688 2010-07-27: Simon Goldschmidt
689 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
690 harm but never did anything
692 2010-07-21: Simon Goldschmidt
693 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
696 2010-07-16: Kieran Mansley
697 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
699 2010-07-10: Simon Goldschmidt
700 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
702 2010-06-30: Simon Goldschmidt
703 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
706 2010-06-28: Kieran Mansley
707 * timers.c remove unportable printing of C function pointers
709 2010-06-24: Simon Goldschmidt
710 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
711 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
713 2010-06-24: Simon Goldschmidt
714 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
715 implemented shutdown at socket level.
717 2010-06-21: Simon Goldschmidt
718 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
719 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
720 custom pbufs that reference other (original) pbufs. Additionally set
721 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
723 2010-06-15: Simon Goldschmidt
724 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
726 2010-06-14: Simon Goldschmidt
727 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
729 2010-06-12: Simon Goldschmidt
730 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
733 2010-05-17: Simon Goldschmidt
734 * netdb.c: Correctly NULL-terminate h_addr_list
736 2010-05-16: Simon Goldschmidt
737 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
738 "symbol already defined" i.e. when linking to winsock
740 2010-05-05: Simon Goldschmidt
741 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
744 2010-04-21: Simon Goldschmidt
745 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
748 2010-03-28: Luca Ceresoli
749 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
751 2010-03-27: Luca Ceresoli
752 * mib2.c: patch #7130: remove meaningless const qualifiers
754 2010-03-26: Simon Goldschmidt
755 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
757 2010-03-26: Simon Goldschmidt
758 * various files: Fixed compiling with different options disabled (TCP/UDP),
759 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
761 2010-03-25: Simon Goldschmidt
762 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
764 2010-03-25: Simon Goldschmidt
765 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
766 overrunning our rcv_wnd in ooseq case.
768 2010-03-22: Simon Goldschmidt
769 * tcp.c: tcp_listen() did not copy the pcb's prio.
771 2010-03-19: Simon Goldschmidt
772 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
774 2010-03-14: Simon Goldschmidt
775 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
776 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
777 and basing PBUF_LINK_HLEN on it.
779 2010-03-08: Simon Goldschmidt
780 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
781 when assiging routable address): when checking incoming packets and
782 aborting existing connection on address change, filter out link-local
785 2010-03-06: Simon Goldschmidt
786 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
788 2010-03-06: Simon Goldschmidt
789 * ipv4/ip.c: Don't try to forward link-local addresses
791 2010-03-06: Simon Goldschmidt
792 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
795 2010-03-05: Simon Goldschmidt
796 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
799 2010-03-05: Simon Goldschmidt
800 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
801 into multiple calls to tcp_write.
803 2010-02-21: Simon Goldschmidt
804 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
805 the implementation of DNS_USES_STATIC_BUF==1)
807 2010-02-20: Simon Goldschmidt
808 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
809 close() vs. shutdown(). Now the application does not get any more
810 recv callbacks after calling tcp_close(). Added tcp_shutdown().
812 2010-02-19: Simon Goldschmidt
813 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
814 confusion with realloc()
816 2010-02-15: Simon Goldschmidt/Stephane Lesage
817 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
820 2010-02-14: Simon Goldschmidt
821 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
822 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
823 admin-status of a netif are up
825 2010-02-14: Simon Goldschmidt
826 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
827 reception and is not really necessary
829 2010-02-14: Simon Goldschmidt
830 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
831 request was directed as us (RFC 826, Packet Reception), otherwise
832 only update existing entries; internalized some functions
834 2010-02-14: Simon Goldschmidt
835 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
836 disabled on netif used for PPPoE) by adding a new netif flag
837 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
838 device but prevents usage of ARP (so that ethernet_input can be used
841 2010-02-12: Simon Goldschmidt
842 * netif.c: netif_set_link_up/down: only do something if the link state
845 2010-02-12: Simon Goldschmidt/Stephane Lesage
846 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
849 2010-02-12: Simon Goldschmidt
850 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
852 2010-02-09: Simon Goldschmidt
853 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
854 (recv() makes receive window update for data that wasn't received by
857 2010-02-09: Simon Goldschmidt/Stephane Lesage
858 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
859 or any netconn_recv() error)
861 2010-02-09: Simon Goldschmidt
862 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
864 2010-02-09: Simon Goldschmidt
865 * netif.c: For loopback packets, adjust the stats- and snmp-counters
866 for the loopback netif.
868 2010-02-08: Simon Goldschmidt
869 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
870 since they are not used anywhere else.
872 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
873 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
874 (patch from bug #28798)
876 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
877 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
878 another bug when LWIP_RAND() returns zero.
880 2010-02-04: Simon Goldschmidt
881 * nearly every file: Use macros defined in ip_addr.h (some of them new)
882 to work with IP addresses (preparation for bug #27352 - Change ip_addr
883 from struct to typedef (u32_t) - and better code).
885 2010-01-31: Simon Goldschmidt
886 * netif.c: Don't call the link-callback from netif_set_up/down() since
887 this invalidly retriggers DHCP.
889 2010-01-29: Simon Goldschmidt
890 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
891 portability file inet.h and its contents from the stack: moved htonX-
892 functions to def.h (and the new def.c - they are not ipv4 dependent),
893 let inet.h depend on ip_addr.h and not the other way round.
894 This fixes bug #28732.
896 2010-01-28: Kieran Mansley
897 * tcp.c: Ensure ssthresh >= 2*MSS
899 2010-01-27: Simon Goldschmidt
900 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
901 callback can lead to accessing unallocated memory. As a consequence,
902 ERR_ABRT means the application has called tcp_abort()!
904 2010-01-25: Simon Goldschmidt
905 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
906 not implemented in SNMP): write-only or not-accessible are still
907 returned by getnext (though not by get)
909 2010-01-24: Simon Goldschmidt
910 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
911 not use reserved C/C++ keywords
913 2010-01-23: Simon Goldschmidt
914 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
917 2010-01-21: Simon Goldschmidt
918 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
919 if tcp_enqueue fails) both in raw- and netconn-API
921 2010-01-19: Simon Goldschmidt
922 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
924 2010-01-18: Iordan Neshev/Simon Goldschmidt
925 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
926 bugfix backports from 2.4.x.
928 2010-01-18: Simon Goldschmidt
929 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
931 2010-01-17: Simon Goldschmidt
932 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
933 task #10102: "netconn: clean up conn->err threading issues" by adding
934 error return value to struct api_msg_msg
936 2010-01-17: Simon Goldschmidt
937 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
938 to return err_t (bugs #27709 and #28087)
940 2010-01-14: Simon Goldschmidt
941 * ...: Use typedef for function prototypes throughout the stack.
943 2010-01-13: Simon Goldschmidt
944 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
945 window = 0) by correctly draining recvmbox/acceptmbox
947 2010-01-11: Simon Goldschmidt
948 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
949 erroneous callbacks) by copying the code from recent pppd
951 2010-01-10: Simon Goldschmidt
952 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
954 2010-01-10: Simon Goldschmidt
955 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
957 2010-01-08: Simon Goldschmidt
958 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
960 2010-01-08: Simon Goldschmidt
961 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
962 passed to dns_local_addhost() might be volatile
964 2010-01-07: Simon Goldschmidt
965 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
967 2010-01-06: Simon Goldschmidt
968 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
970 2009-12-31: Simon Goldschmidt
971 * many ppp files: Reorganised PPP source code from ucip structure to pppd
972 structure to easily compare our code against the pppd code (around v2.3.1)
974 2009-12-27: Simon Goldschmidt
975 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
983 2009-10-27 Simon Goldschmidt/Stephan Lesage
984 * netifapi.c/.h: Added netifapi_netif_set_addr()
986 2009-10-07 Simon Goldschmidt/Fabian Koch
987 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
988 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
990 2009-08-26 Simon Goldschmidt/Simon Kallweit
991 * slipif.c/.h: bug #26397: SLIP polling support
993 2009-08-25 Simon Goldschmidt
994 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
995 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
997 2009-08-25 Simon Goldschmidt
998 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
1000 2009-08-24 Jakob Stoklund Olesen
1001 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
1002 to netif_set_link_up().
1004 2009-08-23 Simon Goldschmidt
1005 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
1006 to a human-readable string.
1010 2009-12-24: Kieran Mansley
1011 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
1014 2009-12-06: Simon Goldschmidt
1015 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
1016 be statically allocated (like in ucip)
1018 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
1019 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
1021 2009-12-03: Simon Goldschmidt
1022 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
1023 could have non-zero length
1025 2009-12-02: Simon Goldschmidt
1026 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
1027 tcp_input_pcb until after calling the pcb's callbacks
1029 2009-11-29: Simon Goldschmidt
1030 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
1031 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
1033 2009-11-29: Simon Goldschmidt
1034 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
1035 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
1037 2009-11-26: Simon Goldschmidt
1038 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
1041 2009-11-26: Simon Goldschmidt
1042 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
1043 algorithm at PCB level
1045 2009-11-22: Simon Goldschmidt
1046 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
1048 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
1049 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
1050 reusing time-wait pcb
1052 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
1053 * sockets.c: Fixed bug #28062: Data received directly after accepting
1054 does not wake up select
1056 2009-11-11: Simon Goldschmidt
1057 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
1059 2009-10-30: Simon Goldschmidt
1060 * opt.h: Increased default value for TCP_MSS to 536, updated default
1061 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
1063 2009-10-28: Kieran Mansley
1064 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
1065 to follow algorithm from TCP/IP Illustrated
1067 2009-10-27: Kieran Mansley
1068 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
1070 2009-10-25: Simon Goldschmidt
1071 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
1072 pcb->recv is NULL to keep rcv_wnd correct)
1074 2009-10-25: Simon Goldschmidt
1075 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
1077 2009-10-23: Simon Goldschmidt (David Empson)
1078 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
1080 2009-10-21: Simon Goldschmidt
1081 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
1082 trailing 1 byte len (SYN/FIN)
1084 2009-10-21: Simon Goldschmidt
1085 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
1087 2009-10-19: Simon Goldschmidt
1088 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
1089 conditional code to assert where applicable), check pbuf length before
1090 testing for valid reply
1092 2009-10-19: Simon Goldschmidt
1093 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
1094 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
1096 2009-10-16: Simon Goldschmidt
1097 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
1098 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
1101 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
1102 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
1104 2009-10-15: Simon Goldschmidt
1105 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
1108 2009-10-15: Simon Goldschmidt
1109 * autoip.c: Fixed bug #27704: autoip starts with wrong address
1110 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
1111 of network byte order
1113 2009-10-11 Simon Goldschmidt (Jörg Kesten)
1114 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
1115 which are not consecutive when retransmitting unacked segments
1117 2009-10-09 Simon Goldschmidt
1118 * opt.h: Fixed default values of some stats to only be enabled if used
1119 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
1121 2009-08-30 Simon Goldschmidt
1122 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
1123 function" by checking for loopback before calling ip_frag
1125 2009-08-25 Simon Goldschmidt
1126 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
1128 2009-08-23 Simon Goldschmidt
1129 * ppp.c: bug #27078: Possible memory leak in pppInit()
1131 2009-08-23 Simon Goldschmidt
1132 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
1135 2009-08-23 Simon Goldschmidt
1136 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
1137 Fixed wrong parenthesis, added check in init.c
1139 2009-08-23 Simon Goldschmidt
1140 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
1142 2009-08-23 Simon Goldschmidt
1143 * many ppp files: bug #27267: Added include to string.h where needed
1145 2009-08-23 Simon Goldschmidt
1146 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
1153 2009-05-10 Simon Goldschmidt
1154 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
1155 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
1156 one pbuf to help MACs that don't support scatter-gather DMA.
1158 2009-05-09 Simon Goldschmidt
1159 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
1160 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
1162 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
1163 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
1164 extended info about the currently received packet.
1166 2009-04-27 Simon Goldschmidt
1167 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
1169 2009-04-25 Simon Goldschmidt
1170 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
1171 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
1173 2009-04-21 Simon Goldschmidt
1174 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
1175 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
1176 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
1177 as an external function for lookup.
1179 2009-04-15 Simon Goldschmidt
1180 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
1182 2009-03-31 Kieran Mansley
1183 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
1184 TCP timestamp options, off by default. Rework tcp_enqueue() to
1185 take option flags rather than specified option data
1187 2009-02-18 Simon Goldschmidt
1188 * cc.h: Added printf formatter for size_t: SZT_F
1190 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
1191 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
1194 2009-02-12 Simon Goldschmidt
1195 * init.h: Added LWIP_VERSION to get the current version of the stack
1197 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
1198 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
1199 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
1202 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
1203 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
1204 is only used by UDPLITE at present, so conditionalise it.
1206 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
1207 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
1208 "seed" address. This should reduce AUTOIP conflicts if
1209 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
1211 2008-10-02 Jonathan Larmour and Rishi Khan
1212 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
1215 2008-06-30 Simon Goldschmidt
1216 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
1217 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
1218 mem_free to run between mem_malloc iterations. Added illegal counter for
1221 2008-06-27 Simon Goldschmidt
1222 * stats.h/.c, some other files: patch #6483: stats module improvement:
1223 Added defines to display each module's statistic individually, added stats
1224 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
1226 2008-06-17 Simon Goldschmidt
1227 * err.h: patch #6459: Made err_t overridable to use a more efficient type
1228 (define LWIP_ERR_T in cc.h)
1230 2008-06-17 Simon Goldschmidt
1231 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
1234 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
1235 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
1236 modified version of patch # 6370: Moved loopif code to netif.c so that
1237 loopback traffic is supported on all netifs (all local IPs).
1238 Added option to limit loopback packets for each netifs.
1242 2009-08-12 Kieran Mansley
1243 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1244 out of window or out of order properly
1246 2009-08-12 Kieran Mansley
1247 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1249 2009-07-28 Simon Goldschmidt
1250 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1252 2009-07-27 Kieran Mansley
1253 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1255 2009-07-09 Kieran Mansley
1256 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1257 recv_avail and don't increment counters until message successfully
1260 2009-06-25 Kieran Mansley
1261 * api_msg.c api.h: BUG26722: initialise netconn write variables
1264 2009-06-25 Kieran Mansley
1265 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1267 2009-06-25 Kieran Mansley
1268 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1269 simultaneous close behaviour, and make snd_nxt have the same meaning
1272 2009-05-12 Simon Goldschmidt
1273 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1274 arp_table / uses etharp_query" by adding etharp_gratuitous()
1276 2009-05-12 Simon Goldschmidt
1277 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1278 to the IP header (used by igmp_ip_output_if)
1280 2009-05-06 Simon Goldschmidt
1281 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1282 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1284 2009-05-05 Simon Goldschmidt
1285 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1288 2009-05-04 Simon Goldschmidt
1289 * init.c: snmp was not initialized in lwip_init()
1291 2009-05-04 Frédéric Bernon
1292 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1294 2009-05-03 Simon Goldschmidt
1295 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1296 (and unsent->next == NULL)
1298 2009-05-02 Simon Goldschmidt
1299 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1300 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1302 2009-05-02 Simon Goldschmidt
1303 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1305 2009-05-01 Simon Goldschmidt
1306 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1308 2009-05-01 Simon Goldschmidt
1309 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1311 2009-04-29 Frédéric Bernon
1312 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1313 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1314 of broadcast packets even when this option wasn't set. Port maintainers
1315 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1316 If you want this option also filter broadcast on recv operations, you also
1317 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1319 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1320 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1321 DHCP/AUTOIP cooperation
1323 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1324 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1325 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1326 right place in tcp_output and tcp_rexmit).
1328 2009-04-25 Simon Goldschmidt
1329 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1330 when debugging": memp_sizes contained the wrong sizes (including sanity
1331 regions); memp pools for MEM_USE_POOLS were too small
1333 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1334 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1335 behavior, with with ip address string not ended by a '\0', a space or a
1338 2009-04-19 Simon Goldschmidt
1339 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1340 pcb->err is called, not pcb->connected (with an error code).
1342 2009-04-19 Simon Goldschmidt
1343 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1344 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1346 2009-04-19 Simon Goldschmidt
1347 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1348 in the header pbuf, not the data pbuf)
1350 2009-04-18 Simon Goldschmidt
1351 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1353 2009-04-15 Simon Goldschmidt
1354 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1356 2009-04-15 Simon Goldschmidt
1357 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1359 2009-04-15 Simon Goldschmidt
1360 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1361 ip_hinted_output() (for smaller code mainly)
1363 2009-04-15 Simon Goldschmidt
1364 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1366 2009-04-15 Simon Goldschmidt
1367 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1368 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1369 is big enough in dhcp_start
1371 2009-04-15 Simon Goldschmidt
1372 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1374 2009-04-15 Simon Goldschmidt
1375 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1377 2009-04-15 Simon Goldschmidt
1378 * sockets.c: bug #26121: set_errno can be overridden
1380 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1381 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1384 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1385 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1388 2009-03-31 Kieran Mansley
1389 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1390 updates are calculated and sent (BUG20515)
1392 * tcp_in.c: cope with SYN packets received during established states,
1393 and retransmission of initial SYN.
1395 * tcp_out.c: set push bit correctly when tcp segments are merged
1397 2009-03-27 Kieran Mansley
1398 * tcp_out.c set window correctly on probes (correcting change made
1401 2009-03-26 Kieran Mansley
1402 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1403 connections where no reset required (bug #25622)
1405 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1408 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1409 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1410 too small depending on MEM_ALIGNMENT
1412 2009-02-16 Simon Goldschmidt
1413 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1414 converted size argument of netconn_write to 'size_t'
1416 2009-02-16 Simon Goldschmidt
1417 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1418 by moving accept callback function pointer to TCP_PCB_COMMON
1420 2009-02-12 Simon Goldschmidt
1421 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1424 2009-02-11 Simon Goldschmidt
1425 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1427 2009-02-11 Simon Goldschmidt
1428 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1429 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1431 2009-02-10 Simon Goldschmidt
1432 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1433 Accepts_pending is decrease on a corresponding listen pcb when a connection
1434 in state SYN_RCVD is close.
1436 2009-01-28 Jonathan Larmour
1437 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1440 2008-12-19 Simon Goldschmidt
1441 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1443 2008-12-10 Tamas Somogyi, Frédéric Bernon
1444 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1445 port uses deleted netbuf.
1447 2008-10-18 Simon Goldschmidt
1448 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1451 2008-10-15 Simon Goldschmidt
1452 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1453 by packing the struct ip_reass_helper.
1455 2008-10-03 David Woodhouse, Jonathan Larmour
1456 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1458 2008-10-02 Jonathan Larmour
1459 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1460 padding is included.
1462 2008-09-30 Jonathan Larmour
1463 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1464 assertion check that addrlen isn't NULL.
1466 2008-09-30 Jonathan Larmour
1467 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1469 2008-08-26 Simon Goldschmidt
1470 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1471 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1473 2008-08-14 Simon Goldschmidt
1474 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1475 tcp_close returns != ERR_OK)
1477 2008-07-08 Frédéric Bernon
1478 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1479 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1481 2008-06-24 Jonathan Larmour
1482 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1483 if tcp_seg_copy fails.
1485 2008-06-17 Simon Goldschmidt
1486 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1487 and created defines for swapping bytes and folding u32 to u16.
1489 2008-05-30 Kieran Mansley
1490 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1491 rather than rcv_ann_wnd when deciding if packets are in-window.
1492 Contributed by <arasmussen@consultant.datasys.swri.edu>
1494 2008-05-30 Kieran Mansley
1495 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1496 passing as function pointers when MEM_LIBC_MALLOC is defined.
1498 2008-05-09 Jonathan Larmour
1499 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1500 stop it being treated as a fatal error.
1502 2008-04-15 Simon Goldschmidt
1503 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1506 2008-03-27 Simon Goldschmidt
1507 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1508 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1509 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1510 or heap memory from interrupt context
1512 2008-03-26 Simon Goldschmidt
1513 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1514 host sent a zero mss as TCP option.
1521 2008-03-10 Jonathan Larmour
1522 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1523 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1525 2008-01-22 Frédéric Bernon
1526 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1527 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1529 2008-01-14 Frédéric Bernon
1530 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1531 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1532 tcp_recv callback (see rawapi.txt).
1534 2008-01-14 Frédéric Bernon, Marc Chaland
1535 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1537 2008-01-12 Frédéric Bernon
1538 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1539 netconn::sem per netconn::op_completed like suggested for the task #7490
1540 "Add return value to sys_mbox_post".
1542 2008-01-12 Frédéric Bernon
1543 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1544 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1545 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1547 2008-01-10 Frédéric Bernon
1548 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1549 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1550 "blocking" ("block" parameter = 1).
1552 2008-01-10 Frédéric Bernon
1553 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1554 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1555 "Add return value to sys_mbox_post".
1557 2008-01-05 Frédéric Bernon
1558 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1559 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1560 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1561 indicate the number of pointers query by the mailbox. There is three defines
1562 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1563 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1564 parameter in your implementation, but to ignore it to keep the previous behavior.
1565 The new sys_mbox_trypost function return a value to know if the mailbox is
1566 full or if the message is posted. Take a look to sys_arch.txt for more details.
1567 This new function is used in tcpip_input (so, can be called in an interrupt
1568 context since the function is not blocking), and in recv_udp and recv_raw.
1570 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1571 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1572 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1573 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1574 documentation in the rawapi.txt file.
1576 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1577 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1579 2007-12-31 Frédéric Bernon, Luca Ceresoli
1580 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1581 in autoip". The change in etharp_raw could be removed, since all calls to
1582 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1583 wrong in the future.
1585 2007-12-30 Frédéric Bernon, Tom Evans
1586 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1587 Filtering" reported by Tom Evans.
1589 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1590 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1591 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1592 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1593 keep accepting new connections.
1595 2007-12-13 Frédéric Bernon
1596 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1597 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1599 2007-12-12 Frédéric Bernon
1600 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1601 are the one which have ram usage.
1603 2007-12-05 Frédéric Bernon
1604 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1605 set of variables (=0) or a local one (=1). In this last case, your port should
1606 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1607 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1609 2007-12-03 Simon Goldschmidt
1610 * ip.c: ip_input: check if a packet is for inp first before checking all other
1611 netifs on netif_list (speeds up packet receiving in most cases)
1613 2007-11-30 Simon Goldschmidt
1614 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1615 UDP: move a (connected) pcb selected for input to the front of the list of
1616 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1619 2007-11-28 Simon Goldschmidt
1620 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1622 2007-11-25 Simon Goldschmidt
1623 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1626 2007-11-24 Simon Goldschmidt
1627 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1628 to the new file netdb.c; included lwip_getaddrinfo.
1630 2007-11-21 Simon Goldschmidt
1631 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1632 based on the MTU of the netif used to send. Enabled by default. Disable by
1633 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1635 2007-11-19 Frédéric Bernon
1636 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1637 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1638 copy dns payload to parse the response), return an error if there is no place
1639 for a new query, and fix some minor problems.
1641 2007-11-16 Simon Goldschmidt
1642 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1643 removed files: core/inet.c, core/inet6.c
1644 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1645 inet and chksum part; changed includes in all lwIP files as appropriate
1647 2007-11-16 Simon Goldschmidt
1648 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1649 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1650 (gethostbyname/gethostbyname_r).
1652 2007-11-15 Jim Pettinato, Frédéric Bernon
1653 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1654 requests with RAW api interface. Initialization is done in lwip_init() with
1655 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1656 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1657 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1658 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1659 list with points to improve.
1661 2007-11-06 Simon Goldschmidt
1662 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1663 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1664 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1666 2007-11-06 Simon Goldschmidt
1667 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1668 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1669 implementation from netconn api applications.
1671 2007-11-03 Frédéric Bernon
1672 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1673 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1674 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1675 it. This is a first release which have to be improve for TCP. Note it used the
1676 netconn::recv_avail which need to be more "thread-safe" (note there is already
1677 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1679 2007-11-01 Frédéric Bernon, Marc Chaland
1680 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1681 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1682 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1683 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1684 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1686 2007-10-24 Frédéric Bernon
1687 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1688 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1689 some code (like we have talk in "patch #5919 : Create compile switch to remove
1690 select code"), but it could be done later.
1692 2007-10-08 Simon Goldschmidt
1693 * many files: Changed initialization: many init functions are not needed any
1694 more since we now rely on the compiler initializing global and static
1697 2007-10-06 Simon Goldschmidt
1698 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1699 to enqueue the received pbufs so that multiple packets can be reassembled
1700 simultaneously and no static reassembly buffer is needed.
1702 2007-10-05 Simon Goldschmidt
1703 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1704 all netifs (or ports) can use it.
1706 2007-10-05 Frédéric Bernon
1707 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1708 common function to reduce a little bit the footprint (for all functions using
1709 only the "netif" parameter).
1711 2007-10-03 Frédéric Bernon
1712 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1713 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1714 a little bit the footprint (for all functions using only the "netif" parameter).
1716 2007-09-15 Frédéric Bernon
1717 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1718 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1719 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1720 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1722 2007-09-10 Frédéric Bernon
1723 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1724 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1725 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1726 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1727 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1728 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1729 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1730 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1731 when it's queried (any direct call to "sysuptime" is changed by a call to
1732 snmp_get_sysuptime).
1734 2007-09-09 Frédéric Bernon, Bill Florac
1735 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1736 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1737 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1738 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1739 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1740 the next query message to receive the matching multicast streams).
1742 2007-09-08 Frédéric Bernon
1743 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1744 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1745 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1746 Enable to access to these fields with LWIP_TCP=0.
1748 2007-09-05 Frédéric Bernon
1749 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1750 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1751 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1752 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1753 help to reduce footprint, and to reduce "visibility" on the Internet.
1755 2007-09-05 Frédéric Bernon, Bill Florac
1756 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1757 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1758 parameters have to be provided: a task name, and a task stack size. For this
1759 one, since it's platform dependant, you could define the best one for you in
1760 your lwipopts.h. For port maintainers, you can just add these new parameters
1761 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1764 2007-09-05 Frédéric Bernon
1765 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1766 inside init.c for task #7142 "Sanity check user-configurable values".
1768 2007-09-04 Frédéric Bernon, Bill Florac
1769 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1770 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1771 value). It will avoid potential fragmentation problems, use a counter to know
1772 how many times a group is used on an netif, and free it when all applications
1773 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1774 check if LWIP_IGMP!=0).
1776 2007-09-03 Frédéric Bernon
1777 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1778 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1779 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1780 and/or the "interface" field (for netconn layer), for join/leave operations.
1781 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1782 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1784 2007-08-30 Frédéric Bernon
1785 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1786 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1787 with other API (application based on raw API, or future "socket2" API). Ports
1788 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1790 2007-08-30 Frédéric Bernon, Jonathan Larmour
1791 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1792 user-configurable values".
1794 2007-08-29 Frédéric Bernon
1795 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1796 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1797 spirit than the others modules. Modify some IGMP debug traces.
1799 2007-08-29 Frédéric Bernon
1800 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1801 Add lwip_init function to regroup all modules initializations, and to provide
1802 a place to add code for task #7142 "Sanity check user-configurable values".
1803 Ports maintainers should remove direct initializations calls from their code,
1804 and add init.c in their makefiles. Note that lwip_init() function is called
1805 inside tcpip_init, but can also be used by raw api users since all calls are
1806 disabled when matching options are disabled. Also note that their is new options
1807 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1809 2007-08-26 Marc Boucher
1810 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1811 since they can under certain circumstances be called with an invalid conn
1812 pointer after the connection has been closed (and conn has been freed).
1814 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1815 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1816 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1818 2007-08-22 Frédéric Bernon
1819 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1820 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1822 2007-08-22 Frédéric Bernon
1823 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1824 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1825 name is tcpip_input (we keep the name of 1.2.0 function).
1827 2007-08-17 Jared Grubb
1828 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1829 settings into new memp_std.h and optional user file lwippools.h. This adds
1830 more dynamic mempools, and allows the user to create an arbitrary number of
1831 mempools for mem_malloc.
1833 2007-08-16 Marc Boucher
1834 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1835 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1836 close the connection.
1838 2007-08-16 Marc Boucher
1839 * sockets.c: lwip_accept(): check netconn_peer() error return.
1841 2007-08-16 Marc Boucher
1842 * mem.c, mem.h: Added mem_calloc().
1844 2007-08-16 Marc Boucher
1845 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1846 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1847 and starving other message types.
1848 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1850 2007-08-16 Marc Boucher
1851 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1852 type and flgs (later renamed to flags).
1853 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1854 Improved lwip_recvfrom(). TCP push now propagated.
1856 2007-08-16 Marc Boucher
1857 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1860 2007-08-16 Marc Boucher
1861 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1862 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1863 Added PPPoE support and various PPP improvements.
1865 2007-07-25 Simon Goldschmidt
1866 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1867 making netbuf_copy_partial use this function.
1869 2007-07-25 Simon Goldschmidt
1870 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1871 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1874 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1875 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1876 a link callback in the netif struct, and functions to handle it. Be carefull
1877 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1878 if you want to be sure to be compatible with future changes...
1880 2007-06-30 Frédéric Bernon
1881 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1883 2007-06-21 Simon Goldschmidt
1884 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1885 LWIP_AUTOIP =0 and =1 to remove redundant code.
1887 2007-06-21 Simon Goldschmidt
1888 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1889 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1890 heap. This both prevents memory fragmentation and gives a higher speed
1891 at the cost of more memory consumption. Turned off by default.
1893 2007-06-21 Simon Goldschmidt
1894 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1895 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1896 int to be able to send a bigger buffer than 64K with one time (mainly
1897 used from lwip_send).
1899 2007-06-21 Simon Goldschmidt
1900 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1901 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1903 2007-06-21 Simon Goldschmidt
1904 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1905 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1906 changes on low memory or empty send-buffer.
1908 2007-06-18 Simon Goldschmidt
1909 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1910 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1911 used for ethernet and struct eth_addr already had a defined length of 6).
1913 2007-06-17 Simon Goldschmidt
1914 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1915 to disable UDP checksum generation on transmit.
1917 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1918 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1919 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1920 this macro to check "conn" parameter in api_msg.c functions.
1922 2007-06-11 Simon Goldschmidt
1923 * sockets.c, sockets.h: Added UDP lite support for sockets
1925 2007-06-10 Simon Goldschmidt
1926 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1927 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1930 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1931 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1932 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1933 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1934 (see TODO mark in the source code).
1936 2007-06-09 Simon Goldschmidt
1937 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1938 etharp_output() to match netif->output so etharp_output() can be used
1939 directly as netif->output to save one function call.
1941 2007-06-08 Simon Goldschmidt
1942 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1943 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1944 added initialization of those to ethernetif, slipif and loopif.
1946 2007-05-18 Simon Goldschmidt
1947 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1948 (defaulting to off for now) that can be set to 0 to send fragmented
1949 packets by passing PBUF_REFs down the stack.
1951 2007-05-23 Frédéric Bernon
1952 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1953 connections, such present in patch #5959.
1955 2007-05-23 Frédéric Bernon
1956 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1957 code in only one part...
1959 2007-05-18 Simon Goldschmidt
1960 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1961 elements to overflow. This is achieved by adding some bytes before and after
1962 each pool element (increasing their size, of course), filling them with a
1963 prominent value and checking them on freeing the element.
1964 Set it to 2 to also check every element in every pool each time memp_malloc()
1965 or memp_free() is called (slower but more helpful).
1967 2007-05-10 Simon Goldschmidt
1968 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1969 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1972 2007-05-11 Frédéric Bernon
1973 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1974 Include a function pointer instead of a table index in the message to reduce
1975 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1976 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1978 2007-05-10 Simon Goldschmidt
1979 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1980 \ extern "C" {' in all header files. Now you can write your application using
1981 the lwIP stack in C++ and simply #include the core files. Note I have left
1982 out the netif/ppp/*h header files for now, since I don't know which files are
1983 included by applications and which are for internal use only.
1985 2007-05-09 Simon Goldschmidt
1986 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1987 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1988 situations where some compilers might inline the copy and save a function
1989 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1991 2007-05-08 Simon Goldschmidt
1992 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1993 to be overriden in case the C-library malloc implementation is not protected
1994 against concurrent access.
1996 2007-05-04 Simon Goldschmidt (Atte Kojo)
1997 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1998 multiple packets to the same host.
2000 2007-05-04 Frédéric Bernon, Jonathan Larmour
2001 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
2002 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
2003 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
2004 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
2005 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
2006 these fields are now renamed "addr" & "port".
2008 2007-04-11 Jonathan Larmour
2009 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
2010 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
2011 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
2012 by the port in sys_arch.h if desired.
2014 2007-04-06 Frédéric Bernon, Simon Goldschmidt
2015 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
2016 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
2017 clients, using new functions from netifapi.h. Disable as default (no port change to do).
2019 2007-04-05 Frédéric Bernon
2020 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
2022 2007-04-04 Simon Goldschmidt
2023 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
2024 use this for and architecture-independent form to tell the compiler you intentionally
2025 are not using this variable. Can be overriden in cc.h.
2027 2007-03-28 Frédéric Bernon
2028 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
2029 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
2030 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
2031 It will be used by DHCP to register a client hostname, but can also be use when you call
2034 2007-03-28 Frédéric Bernon
2035 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
2036 initialize a network interface's flag with. It tell this interface is an ethernet
2037 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
2038 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
2040 2007-03-26 Frédéric Bernon, Jonathan Larmour
2041 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
2042 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
2043 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
2044 is done in tcpip_init function.
2046 2007-03-22 Frédéric Bernon
2047 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
2048 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
2049 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
2050 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
2051 but never used. Fix msg_in.c with the correct #if test for a stat display.
2053 2007-03-21 Kieran Mansley
2054 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
2055 Provides callback on netif up/down state change.
2057 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
2058 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
2059 ip.c, netif.h, tcpip.c, opt.h:
2060 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
2061 filter per all network interfaces. Declare a new function in netif to enable to
2062 control the MAC filter (to reduce lwIP traffic processing).
2064 2007-03-11 Frédéric Bernon
2065 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
2066 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
2067 unless you know what you're doing (default are RFC1122 compliant). Note
2068 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
2070 2007-03-08 Frédéric Bernon
2071 * tcp.h: Keepalive values can be configured at compile time, but don't change
2072 this unless you know what you're doing (default are RFC1122 compliant).
2074 2007-03-08 Frédéric Bernon
2075 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
2076 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
2077 on UDP sockets/netconn.
2079 2007-03-08 Simon Goldschmidt
2080 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
2082 2007-03-06 Frédéric Bernon
2083 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
2084 Implement SO_RCVTIMEO on UDP sockets/netconn.
2086 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
2087 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
2088 on the stack and remove the API msg type from memp
2090 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2091 * sockets.h, sockets.c: Move socket initialization to new
2092 lwip_socket_init() function.
2093 NOTE: this changes the API with ports. Ports will have to be
2094 updated to call lwip_socket_init() now.
2096 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
2097 * api_lib.c: Use memcpy in netbuf_copy_partial.
2102 2008-03-17 Frédéric Bernon, Ed Kerekes
2103 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
2104 some problems to fill the IP header on some targets, use now the
2105 ip.h macros to do it).
2107 2008-03-13 Frédéric Bernon
2108 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
2109 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
2110 TCP connection caused a crash. Note that using (lwip_)recvfrom
2111 like this is a bit slow and that using (lwip)getpeername is the
2112 good lwip way to do it (so, using recv is faster on tcp sockets).
2114 2008-03-12 Frédéric Bernon, Jonathan Larmour
2115 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
2116 recv_raw() does not consume data", and the ping sample (with
2117 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
2118 returned the IP payload, without the IP header).
2120 2008-03-04 Jonathan Larmour
2121 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
2122 and/or warnings on some systems where mem_size_t and size_t differ.
2123 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
2125 2008-03-04 Kieran Mansley (contributions by others)
2126 * Numerous small compiler error/warning fixes from contributions to
2127 mailing list after 1.3.0 release candidate made.
2129 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
2130 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
2132 2008-01-15 Kieran Mansley
2133 * tcp_out.c: BUG20511. Modify persist timer to start when we are
2134 prevented from sending by a small send window, not just a zero
2137 2008-01-09 Jonathan Larmour
2138 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
2139 conflict with Linux system headers.
2141 2008-01-06 Jonathan Larmour
2142 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
2143 address entirely on receiving a DHCPNAK, and restarting discovery.
2145 2007-12-21 Simon Goldschmidt
2146 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
2147 is not protected" by using new macros for interlocked access to modify/test
2148 netconn->recv_avail.
2150 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
2151 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
2153 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
2154 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
2155 of silly window avoidance and prevent lwIP from shrinking the window)
2157 2007-12-04 Simon Goldschmidt
2158 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
2159 data packet was lost): add assert that all segment lists are empty in
2160 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
2161 state from LAST_ACK in tcp_process
2163 2007-12-02 Simon Goldschmidt
2164 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
2165 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
2166 has to be set to 0 in lwipopts.h
2168 2007-12-02 Simon Goldschmidt
2169 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
2170 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
2171 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
2172 This is a fix for thread-safety and allocates all items needed for a netconn
2173 when the netconn is created.
2175 2007-11-30 Simon Goldschmidt
2176 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
2177 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
2178 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
2179 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
2181 2007-11-27 Simon Goldschmidt
2182 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
2183 letting ip_route only use netifs that are up.
2185 2007-11-27 Simon Goldschmidt
2186 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
2187 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
2188 sockets block most operations once they have seen a fatal error.
2190 2007-11-27 Simon Goldschmidt
2191 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
2192 netif to send as an argument (to be able to send on netifs that are down).
2194 2007-11-26 Simon Goldschmidt
2195 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
2198 2007-11-21 Simon Goldschmidt
2199 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
2200 Fixed the nagle algorithm; nagle now also works for all raw API applications
2201 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
2203 2007-11-12 Frédéric Bernon
2204 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
2205 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
2206 context in do_getaddr.
2208 2007-11-10 Simon Goldschmidt
2209 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
2210 happen any time). Now the packet simply isn't enqueued when out of memory.
2212 2007-11-01 Simon Goldschmidt
2213 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
2214 TCP_MSS if that is smaller) as long as no MSS option is received from the
2217 2007-11-01 Simon Goldschmidt
2218 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
2219 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
2220 sending our configured TCP_MSS instead of the one received).
2222 2007-11-01 Simon Goldschmidt
2223 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
2224 calculated based on the configured TCP_MSS, not on the MSS option received
2227 2007-10-09 Simon Goldschmidt
2228 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
2229 short and also was generated wrong if checksum coverage != tot_len;
2230 receive: checksum was calculated wrong if checksum coverage != tot_len
2232 2007-10-08 Simon Goldschmidt
2233 * mem.c: lfree was not updated in mem_realloc!
2235 2007-10-07 Frédéric Bernon
2236 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
2237 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
2238 this change cause an API breakage for netconn_addr, since a parameter
2239 type change. Any compiler should cause an error without any changes in
2240 yours netconn_peer calls (so, it can't be a "silent change"). It also
2241 reduce a little bit the footprint for socket layer (lwip_getpeername &
2242 lwip_getsockname use now a common lwip_getaddrname function since
2243 netconn_peer & netconn_addr have the same parameters).
2245 2007-09-20 Simon Goldschmidt
2246 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2247 by checking tcp_tw_pcbs also
2249 2007-09-19 Simon Goldschmidt
2250 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2252 2007-09-15 Mike Kleshov
2253 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2255 2007-09-06 Frédéric Bernon
2256 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2257 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2258 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2259 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2261 2007-08-30 Frédéric Bernon
2262 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2263 and fix some coding style.
2265 2007-08-28 Frédéric Bernon
2266 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2267 kind of packets. These packets are considered like Ethernet packets (payload
2268 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2269 are considered like IP packets (payload pointing to iphdr).
2271 2007-08-27 Frédéric Bernon
2272 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2273 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2274 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2276 2007-08-24 Kieran Mansley
2277 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2278 compiler (Paradigm C++)
2280 2007-08-09 Frédéric Bernon, Bill Florac
2281 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2282 Introduce IGMP_STATS to centralize statistics management.
2284 2007-08-09 Frédéric Bernon, Bill Florac
2285 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2286 packet on a udp pcb binded on an netif's IP address, and not on "any".
2288 2007-08-09 Frédéric Bernon, Bill Florac
2289 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2290 This is mainly on using lookup/lookfor, and some coding styles...
2292 2007-07-26 Frédéric Bernon (and "thedoctor")
2293 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2295 2007-07-25 Simon Goldschmidt
2296 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2297 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2298 (tcp_output is called again later from tcp timers).
2300 2007-07-25 Simon Goldschmidt
2301 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2302 copy_from_pbuf, which illegally modified the given pbuf.
2304 2007-07-25 Simon Goldschmidt
2305 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2306 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2308 2007-07-24 Simon Goldschmidt
2309 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2310 correct state (must be CLOSED).
2312 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2313 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2314 allocation. It now returns NULL.
2316 2007-07-13 Frédéric Bernon
2317 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2320 2007-07-13 Frédéric Bernon
2321 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2322 because current code doesn't follow rawapi.txt documentation.
2324 2007-07-13 Kieran Mansley
2325 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2326 out of sequence processing of received packets
2328 2007-07-03 Simon Goldschmidt
2329 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2330 assumption is made that this pbuf is in one piece (i.e. not chained). These
2331 assumptions clash with the possibility of converting to fully pool-based
2332 pbuf implementations, where PBUF_RAM pbufs might be chained.
2334 2007-07-03 Simon Goldschmidt
2335 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2336 when closing tcp netconns: removed conn->sem, less context switches when
2337 closing, both netconn_close and netconn_delete should safely close tcp
2340 2007-07-02 Simon Goldschmidt
2341 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2342 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2343 to cache ARP table indices with each pcb instead of single-entry cache for
2346 2007-07-02 Simon Goldschmidt
2347 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2348 warnings when assigning to smaller types.
2350 2007-06-28 Simon Goldschmidt
2351 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2353 2007-06-28 Simon Goldschmidt
2354 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2355 a segment contained chained pbufs)
2357 2007-06-28 Frédéric Bernon
2358 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2359 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2360 possible to define this macro in your own lwipopts.h to always use C library's
2361 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2363 2007-06-28 Frédéric Bernon
2364 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2365 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2366 in api_lib/api_msg (use pointers and not type with table, etc...)
2368 2007-06-26 Simon Goldschmidt
2369 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2371 2007-06-25 Simon Goldschmidt
2372 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2373 for udp packets with no matching pcb.
2375 2007-06-25 Simon Goldschmidt
2376 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2377 could get udp input packets if the remote side matched.
2379 2007-06-13 Simon Goldschmidt
2380 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2381 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2383 2007-06-13 Simon Goldschmidt
2384 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2385 -> netconn_new_..() does not allocate a new connection for unsupported
2388 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2389 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2390 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2392 2007-06-13 Frédéric Bernon, Matthias Weisser
2393 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2394 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2395 some macro names collision with some OS macros.
2397 2007-06-11 Simon Goldschmidt
2398 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2399 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2400 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2403 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2404 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2405 where TCP flags wasn't initialized in tcp_keepalive.
2407 2007-06-03 Simon Goldschmidt
2408 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2409 registered, p->payload was modified without modifying p->len if sending
2410 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2412 2007-06-03 Simon Goldschmidt
2413 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2414 re-used the input pbuf even if that didn't have enough space to include the
2415 link headers. Now the space is tested and a new pbuf is allocated for the
2416 echo response packet if the echo request pbuf isn't big enough.
2418 2007-06-01 Simon Goldschmidt
2419 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2421 2007-05-23 Frédéric Bernon
2422 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2423 allocated by do_listen if success) and netconn_accept errors handling. In
2424 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2425 by ASSERT, except for netconn_delete.
2427 2007-05-23 Frédéric Bernon
2428 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2429 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2430 directly close the recvmbox).
2432 2007-05-22 Simon Goldschmidt
2433 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2434 bound but unconnected (and non-listening) tcp_pcbs.
2436 2007-05-22 Frédéric Bernon
2437 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2438 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2439 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2440 like "sys_timeout" in their application threads.
2442 2007-05-22 Frédéric Bernon
2443 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2444 which parameters are used by which do_xxx function, and to avoid "misusing"
2445 parameters (patch #5938).
2447 2007-05-22 Simon Goldschmidt
2448 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2449 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2450 is only 8 bits wide. This affects the api, as there, the protocol was
2453 2007-05-18 Simon Goldschmidt
2454 * memp.c: addition to patch #5913: smaller pointer was returned but
2455 memp_memory was the same size -> did not save memory.
2457 2007-05-16 Simon Goldschmidt
2458 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2461 2007-05-16 Simon Goldschmidt
2462 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2463 as the one of the netif used for sending to prevent sending from old
2464 addresses after a netif address gets changed (partly fixes bug #3168).
2466 2007-05-16 Frédéric Bernon
2467 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2468 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2469 tcpip_init) because we have to be sure that network interfaces are already
2470 added (mac filter is updated only in igmp_init for the moment).
2472 2007-05-16 Simon Goldschmidt
2473 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2474 into sys_arch_sem_wait calls to prevent timers from running while waiting
2475 for the heap. This fixes bug #19167.
2477 2007-05-13 Simon Goldschmidt
2478 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2479 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2482 2007-05-07 Simon Goldschmidt
2483 * mem.c: Another attempt to fix bug #17922.
2485 2007-05-04 Simon Goldschmidt
2486 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2487 implementation so that it can be reused (don't allocate the target
2488 pbuf inside pbuf_copy()).
2490 2007-05-04 Simon Goldschmidt
2491 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2492 to save a little RAM (next pointer of memp is not used while not in pool).
2495 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2498 2007-04-23 Simon Goldschmidt
2499 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2500 in NULL reference for incoming TCP packets". Loopif has to be configured
2501 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2502 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2503 putting packets on a list that is fed to the stack by calling loopif_poll()
2504 (single-thread / NO_SYS / polling environment where e.g.
2505 netif->input() = ip_input).
2507 2007-04-17 Jonathan Larmour
2508 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2509 the difference between two u16_t's.
2510 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2511 MEMP_NUM_NETCONN in sockets.c right now.
2513 2007-04-12 Jonathan Larmour
2514 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2516 2007-04-12 Kieran Mansley
2517 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2518 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2520 2007-04-11 Simon Goldschmidt
2521 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2522 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2523 pbuf.c: removed functions no needed any more (by etharp).
2525 2007-04-11 Kieran Mansley
2526 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2527 "Constant is long" warnings with 16bit compilers. Contributed by
2528 avatar@mmlab.cse.yzu.edu.tw
2530 2007-04-05 Frédéric Bernon, Jonathan Larmour
2531 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2532 the mailbox is active". Now, the post is only done during a connect, and do_send,
2533 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2535 2007-04-03 Frédéric Bernon
2536 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2537 packets. See patch #5834.
2539 2007-03-30 Frédéric Bernon
2540 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2541 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2543 2007-03-30 Frédéric Bernon
2544 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2545 others environment defines (these were too "generic").
2547 2007-03-28 Frédéric Bernon
2548 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2549 result and can cause a crash. lwip_send now check netbuf_ref result.
2551 2007-03-28 Simon Goldschmidt
2552 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2553 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2554 defined. This is the way it should have been already (looking at
2557 2007-03-28 Kieran Mansley
2558 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2559 IP and TCP headers *and* physical link headers
2561 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2562 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2563 to send some garbage. It is not a definitive solution, but the patch does solve
2564 the problem for most cases.
2566 2007-03-22 Frédéric Bernon
2567 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2569 2007-03-22 Frédéric Bernon
2570 * api_lib.c: somes resources couldn't be freed if there was errors during
2571 netconn_new_with_proto_and_callback.
2573 2007-03-22 Frédéric Bernon
2574 * ethernetif.c: update netif->input calls to check return value. In older ports,
2575 it's a good idea to upgrade them, even if before, there could be another problem
2576 (access to an uninitialized mailbox).
2578 2007-03-21 Simon Goldschmidt
2579 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2580 by casting to unsigned).
2582 2007-03-21 Frédéric Bernon
2583 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2584 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2585 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2586 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2587 faster and more reliable communication between api_lib and tcpip.
2589 2007-03-21 Frédéric Bernon
2590 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2592 2007-03-21 Frédéric Bernon
2593 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2595 2007-03-21 Kieran Mansley
2596 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2599 2007-03-21 Kieran Mansley
2600 * Fix all uses of pbuf_header to check the return value. In some
2601 cases just assert if it fails as I'm not sure how to fix them, but
2602 this is no worse than before when they would carry on regardless
2605 2007-03-21 Kieran Mansley
2606 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2607 comment out missing header include in icmp.c
2609 2007-03-20 Frédéric Bernon
2610 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2611 synchronized with memp.h.
2613 2007-03-20 Frédéric Bernon
2614 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2615 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2616 network interfaces. Also fix a compiler warning.
2618 2007-03-20 Kieran Mansley
2619 * udp.c: Only try and use pbuf_header() to make space for headers if
2620 not a ROM or REF pbuf.
2622 2007-03-19 Frédéric Bernon
2623 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2626 2007-03-19 Frédéric Bernon
2627 * Remove unimplemented "memp_realloc" function from memp.h.
2629 2007-03-11 Simon Goldschmidt
2630 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2633 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2634 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2635 (missing `const' qualifier in socket functions), to get more compatible to
2636 standard POSIX sockets.
2638 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2639 * sockets.c: Add asserts inside bind, connect and sendto to check input
2640 parameters. Remove excessive set_errno() calls after get_socket(), because
2641 errno is set inside of get_socket(). Move last sock_set_errno() inside
2644 2007-03-09 Simon Goldschmidt
2645 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2646 was allocated too small.
2648 2007-03-06 Simon Goldschmidt
2649 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2650 the stack from concurrent access.
2652 2007-03-06 Frédéric Bernon, Dmitry Potapov
2653 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2654 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2656 2007-03-06 Simon Goldschmidt
2657 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2658 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2660 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2661 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2662 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2663 Allow to do ARP processing for incoming packets inside tcpip_thread
2664 (protecting ARP layer against concurrent access). You can also disable
2665 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2666 Older ports have to use tcpip_ethinput.
2668 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2669 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2670 from pointer target type"
2672 2007-03-05 Frédéric Bernon
2673 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2674 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2676 2007-03-04 Frédéric Bernon
2677 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2680 2007-03-04 Frédéric Bernon
2681 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2683 The api_msg struct stay on the stack (not moved to netconn struct).
2685 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2686 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2687 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2688 Also fixed cast warning in pbuf_alloc()
2690 2007-03-04 Simon Goldschmidt
2691 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2692 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2694 2007-03-03 Frédéric Bernon
2695 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2696 It is static, and never used in udp.c except udp_init().
2698 2007-03-02 Simon Goldschmidt
2699 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2700 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2701 initialized before tcpip_thread is running (e.g. before OS is started)
2703 2007-03-02 Frédéric Bernon
2704 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2707 2007-02-28 Kieran Mansley
2708 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2709 outside the region of the pbuf by pbuf_header()
2711 2007-02-28 Kieran Mansley
2712 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2713 when supplied timeout is also non-zero
2717 2006-12-05 Leon Woestenberg
2718 * CHANGELOG: Mention STABLE-1.2.0 release.
2722 2006-12-01 Christiaan Simons
2723 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2724 Note this is a workaround. Currently I have no other options left.
2726 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2727 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2728 to include/lwip/opt.h.
2729 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2730 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2731 * opt.h: Add above new options.
2733 2006-08-18 Christiaan Simons
2734 * tcp_{in,out}.c: added SNMP counters.
2735 * ipv4/ip.c: added SNMP counters.
2736 * ipv4/ip_frag.c: added SNMP counters.
2738 2006-08-08 Christiaan Simons
2739 * etharp.{c,h}: added etharp_find_addr() to read
2740 (stable) ethernet/IP address pair from ARP table
2742 2006-07-14 Christiaan Simons
2743 * mib_structs.c: added
2744 * include/lwip/snmp_structs.h: added
2745 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2747 2006-07-06 Christiaan Simons
2748 * snmp/asn1_{enc,dec}.c added
2750 * snmp/msg_{in,out}.c added
2751 * include/lwip/snmp_asn1.h added
2752 * include/lwip/snmp_msg.h added
2753 * doc/snmp_agent.txt added
2755 2006-03-29 Christiaan Simons
2756 * inet.c, inet.h: Added platform byteswap support.
2757 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2758 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2762 2006-11-30 Christiaan Simons
2763 * dhcp.c: Fixed false triggers of request_timeout.
2765 2006-11-28 Christiaan Simons
2766 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2768 2006-10-11 Christiaan Simons
2769 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2770 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2771 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2772 identifier from 170 to 136 (bug #17574).
2774 2006-10-10 Christiaan Simons
2775 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2777 2006-08-17 Christiaan Simons
2778 * udp.c: Fixed bug #17200, added check for broadcast
2779 destinations for PCBs bound to a unicast address.
2781 2006-08-07 Christiaan Simons
2782 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2784 2006-06-27 Christiaan Simons
2785 * api_msg.c: Applied patch for cold case (bug #11135).
2786 In accept_function() ensure newconn->callback is always initialized.
2788 2006-06-15 Christiaan Simons
2789 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2790 facilitate printing of mem_size_t and u16_t statistics.
2792 2006-06-14 Christiaan Simons
2793 * api_msg.c: Applied patch #5146 to handle allocation failures
2794 in accept() by Kevin Lawson.
2796 2006-05-26 Christiaan Simons
2797 * api_lib.c: Removed conn->sem creation and destruction
2798 from netconn_write() and added sys_sem_new to netconn_new_*.
2802 2006-03-03 Christiaan Simons
2803 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2804 access and added pbuf_alloc() return value checks.
2806 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2807 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2808 now handled by the checksum routine properly.
2810 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2811 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2812 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2814 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2815 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2816 submitted by Mitrani Hiroshi.
2818 2005-12-15 Christiaan Simons
2819 * inet.c: Disabled the added summing routine to preserve code space.
2821 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2822 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2823 Added Curt McDowell's optimized checksumming routine for future
2824 inclusion. Need to create test case for unaliged, aligned, odd,
2825 even length combination of cases on various endianess machines.
2827 2005-12-09 Christiaan Simons
2828 * inet.c: Rewrote standard checksum routine in proper portable C.
2830 2005-11-25 Christiaan Simons
2831 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2832 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2833 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2835 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2836 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2837 routine by Peter Jolasson.
2838 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2840 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2841 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2842 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2844 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2845 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2847 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2848 * udp.c: UDP pcb->recv() was called even when it was NULL.
2852 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2853 * etharp.*: Disabled multiple packets on the ARP queue.
2854 This clashes with TCP queueing.
2856 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2857 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2858 Halved the ARP period, doubled the period counts.
2859 ETHARP_MAX_PENDING now should be at least 2. This prevents
2860 the counter from reaching 0 right away (which would allow
2861 too little time for ARP responses to be received).
2863 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2864 * dhcp.c: Decline messages were not multicast but unicast.
2865 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2866 Do not try hard to insert arbitrary packet's source address,
2867 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2868 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2869 querying an address will see it appear in the cache (DHCP could
2870 suffer from this when a server invalidly gave an in-use address.)
2871 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2872 comparing network addresses (identifiers), not the network masks
2874 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2875 IP address actually belongs to the network of the given interface.
2877 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2878 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2882 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2883 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2884 even if one is already pending, if the rcv_wnd is above a threshold
2885 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2886 delayed ACK in order to open the window if the stack is only receiving data.
2888 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2889 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2891 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2892 * etharp.c: Make sure the first pbuf queued on an ARP entry
2893 is properly ref counted.
2895 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2896 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2897 warnings about comparison.
2898 * pbuf.c: Stopped compiler complaining of empty if statement
2899 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2900 * tcp.c: Stopped compiler complaining of empty if statement
2901 when LWIP_DEBUGF() empty.
2902 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2903 * inet.c: Added a couple of casts to quiet the compiler.
2904 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2906 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2907 * inet.c: Made data types consistent in inet_ntoa().
2908 Added casts for return values of checksum routines, to pacify compiler.
2909 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2910 Small corrections to some debugging statements, to pacify compiler.
2912 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2913 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2914 * ethernetif.c Updated low_level_output() to match prototype for
2915 netif->linkoutput and changed low_level_input() similarly for consistency.
2916 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2917 of raw_recv() in raw.h and so avoid compiler error.
2918 * sockets.c: Added trivial (int) cast to keep compiler happier.
2919 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2925 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2926 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2927 your cc.h file defines this either 1 or 0. If non-defined,
2929 * .c: Added <string.h> and <errno.h> includes where used.
2930 * etharp.c: Made some array indices unsigned.
2932 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2933 * netif.*: Added netif_set_up()/down().
2934 * dhcp.c: Changes to restart program flow.
2936 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2937 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2938 single-pass lookup for different candidates. Should exploit locality.
2940 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2941 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2942 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2943 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2944 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2948 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2949 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2950 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2951 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2952 is to prefix the 14-bit Ethernet headers with two padding bytes.
2954 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2955 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2956 * etharp.c: Fixed the case where the packet that initiates the ARP request
2957 is not queued, and gets lost. Fixed the case where the packets destination
2958 address is already known; we now always queue the packet and perform an ARP
2965 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2966 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2967 * Fixed two possible NULL references in rare cases.
2973 * Fixed DHCP which did not include the IP address in DECLINE messages.
2977 * etharp.c has been hauled over a bit.
2983 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2984 * Packets sent from ARP queue had invalid source hardware address.
2988 * Pass-by ARP requests do now update the cache.
2992 * No longer dependent on ctype.h.
2993 * New socket options.
2994 * Raw IP pcb support.
3000 * Some debug formatters and casts fixed.
3001 * Numereous fixes in PPP.
3005 * DEBUGF now is LWIP_DEBUGF
3006 * pbuf_dechain() has been re-enabled.
3007 * Mentioned the changed use of CVS branches in README.
3013 * Fixed pool pbuf memory leak in pbuf_alloc().
3014 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
3015 Reported by Savin Zlobec.
3017 * PBUF_POOL chains had their tot_len field not set for non-first
3018 pbufs. Fixed in pbuf_alloc().
3022 * Added PPP stack contributed by Marc Boucher
3026 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
3028 * ARP queueuing now queues the latest packet instead of the first.
3029 This is the RFC recommended behaviour, but can be overridden in
3036 * TCP has been fixed to deal with the new use of the pbuf->ref
3039 * DHCP dhcp_inform() crash bug fixed.
3043 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
3044 pbuf_refresh(). This has sped up pbuf pool operations considerably.
3045 Implemented by David Haas.
3051 * The packet buffer implementation has been enhanced to support
3052 zero-copy and copy-on-demand for packet buffers which have their
3053 payloads in application-managed memory.
3054 Implemented by David Haas.
3056 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
3057 if an outgoing packet can be directly sent on the link, or perform
3058 a copy-on-demand when necessary.
3060 The application can safely assume the packet is sent, and the RAM
3061 is available to the application directly after calling udp_send()
3062 or similar function.
3066 * ARP_QUEUEING should now correctly work for all cases, including
3068 Implemented by Leon Woestenberg.
3072 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
3073 to a '0.0.0.0' IP address.
3075 * The packet buffer implementation is changed. The pbuf->ref counter
3076 meaning has changed, and several pbuf functions have been
3077 adapted accordingly.
3079 * netif drivers have to be changed to set the hardware address length field
3080 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
3081 See the contrib/ports/c16x cs8900 driver as a driver example.
3083 * netif's have a dhcp field that must be initialized to NULL by the driver.
3084 See the contrib/ports/c16x cs8900 driver as a driver example.
3086 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
3087 logged in CVS but have not been explained here.
3089 (0.5.3) Changes since version 0.5.2
3093 * memp_malloc(MEMP_API_MSG) could fail with multiple application
3094 threads because it wasn't protected by semaphores.
3098 * struct ip_addr now packed.
3100 * The name of the time variable in arp.c has been changed to ctime
3101 to avoid conflicts with the time() function.
3103 (0.5.2) Changes since version 0.5.1
3107 * A new TCP function, tcp_tmr(), now handles both TCP timers.
3111 * A bug in tcp_parseopt() could cause the stack to hang because of a
3112 malformed TCP option.
3114 * The address of new connections in the accept() function in the BSD
3115 socket library was not handled correctly.
3117 * pbuf_dechain() did not update the ->tot_len field of the tail.
3119 * Aborted TCP connections were not handled correctly in all
3124 * All protocol header structs are now packed.
3126 * The ->len field in the tcp_seg structure now counts the actual
3127 amount of data, and does not add one for SYN and FIN segments.
3129 (0.5.1) Changes since version 0.5.0
3133 * Possible to run as a user process under Linux.
3135 * Preliminary support for cross platform packed structs.
3137 * ARP timer now implemented.
3141 * TCP output queue length was badly initialized when opening
3144 * TCP delayed ACKs were not sent correctly.
3146 * Explicit initialization of BSS segment variables.
3148 * read() in BSD socket library could drop data.
3150 * Problems with memory alignment.
3152 * Situations when all TCP buffers were used could lead to
3155 * TCP MSS option wasn't parsed correctly.
3157 * Problems with UDP checksum calculation.
3159 * IP multicast address tests had endianess problems.
3161 * ARP requests had wrong destination hardware address.
3165 * struct eth_addr changed from u16_t[3] array to u8_t[6].
3167 * A ->linkoutput() member was added to struct netif.
3169 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
3171 * ntoh* macros are now null definitions for big endian CPUs.
3173 (0.5.0) Changes since version 0.4.2
3177 * Redesigned operating system emulation layer to make porting easier.
3179 * Better control over TCP output buffers.
3181 * Documenation added.
3185 * Locking issues in buffer management.
3187 * Bugfixes in the sequential API.
3189 * IP forwarding could cause memory leakage. This has been fixed.
3193 * Directory structure somewhat changed; the core/ tree has been
3196 (0.4.2) Changes since version 0.4.1
3200 * Experimental ARP implementation added.
3202 * Skeleton Ethernet driver added.
3204 * Experimental BSD socket API library added.
3208 * In very intense situations, memory leakage could occur. This has
3213 * Variables named "data" and "code" have been renamed in order to
3214 avoid name conflicts in certain compilers.
3216 * Variable++ have in appliciable cases been translated to ++variable
3217 since some compilers generate better code in the latter case.
3219 (0.4.1) Changes since version 0.4
3223 * TCP: Connection attempts time out earlier than data
3224 transmissions. Nagle algorithm implemented. Push flag set on the
3225 last segment in a burst.
3227 * UDP: experimental support for UDP-Lite extensions.
3231 * TCP: out of order segments were in some cases handled incorrectly,
3232 and this has now been fixed. Delayed acknowledgements was broken
3233 in 0.4, has now been fixed. Binding to an address that is in use
3234 now results in an error. Reset connections sometimes hung an
3235 application; this has been fixed.
3237 * Checksum calculation sometimes failed for chained pbufs with odd
3238 lengths. This has been fixed.
3240 * API: a lot of bug fixes in the API. The UDP API has been improved
3241 and tested. Error reporting and handling has been
3242 improved. Logical flaws and race conditions for incoming TCP
3243 connections has been found and removed.
3245 * Memory manager: alignment issues. Reallocating memory sometimes
3246 failed, this has been fixed.
3248 * Generic library: bcopy was flawed and has been fixed.
3252 * API: all datatypes has been changed from generic ones such as
3253 ints, to specified ones such as u16_t. Functions that return
3254 errors now have the correct type (err_t).
3256 * General: A lot of code cleaned up and debugging code removed. Many
3257 portability issues have been fixed.
3259 * The license was changed; the advertising clause was removed.
3263 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3264 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3267 (0.4) Changes since version 0.3.1
3269 * Memory management has been radically changed; instead of
3270 allocating memory from a shared heap, memory for objects that are
3271 rapidly allocated and deallocated is now kept in pools. Allocation
3272 and deallocation from those memory pools is very fast. The shared
3273 heap is still present but is used less frequently.
3275 * The memory, memory pool, and packet buffer subsystems now support
3276 4-, 2-, or 1-byte alignment.
3278 * "Out of memory" situations are handled in a more robust way.
3280 * Stack usage has been reduced.
3282 * Easier configuration of lwIP parameters such as memory usage,
3283 TTLs, statistics gathering, etc. All configuration parameters are
3284 now kept in a single header file "lwipopts.h".
3286 * The directory structure has been changed slightly so that all
3287 architecture specific files are kept under the src/arch
3290 * Error propagation has been improved, both in the protocol modules
3293 * The code for the RTXC architecture has been implemented, tested
3296 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3297 the Internet checksum modules.
3299 * Bugs related to porting between a 32-bit and a 16-bit architecture
3300 have been found and corrected.
3302 * The license has been changed slightly to conform more with the
3303 original BSD license, including the advertisement clause.
3305 (0.3.1) Changes since version 0.3
3307 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3308 RAM never returned the RAM when the pbuf was deallocated.
3310 * TCP congestion control, window updates and retransmissions did not
3311 work correctly. This has now been fixed.
3313 * Bugfixes in the API.
3315 (0.3) Changes since version 0.2
3317 * New and improved directory structure. All include files are now
3318 kept in a dedicated include/ directory.
3320 * The API now has proper error handling. A new function,
3321 netconn_err(), now returns an error code for the connection in
3324 * Improvements in the memory management subsystem. The system now
3325 keeps a pointer to the lowest free memory block. A new function,
3326 mem_malloc2() tries to allocate memory once, and if it fails tries
3327 to free some memory and retry the allocation.
3329 * Much testing has been done with limited memory
3330 configurations. lwIP now does a better job when overloaded.
3332 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3334 * Many bugfixes in the TCP code:
3336 - Fixed a bug in tcp_close().
3338 - The TCP receive window was incorrectly closed when out of
3339 sequence segments was received. This has been fixed.
3341 - Connections are now timed-out of the FIN-WAIT-2 state.
3343 - The initial congestion window could in some cases be too
3344 large. This has been fixed.
3346 - The retransmission queue could in some cases be screwed up. This
3349 - TCP RST flag now handled correctly.
3351 - Out of sequence data was in some cases never delivered to the
3352 application. This has been fixed.
3354 - Retransmitted segments now contain the correct acknowledgment
3355 number and advertised window.
3357 - TCP retransmission timeout backoffs are not correctly computed
3358 (ala BSD). After a number of retransmissions, TCP now gives up
3361 * TCP connections now are kept on three lists, one for active
3362 connections, one for listening connections, and one for
3363 connections that are in TIME-WAIT. This greatly speeds up the fast
3364 timeout processing for sending delayed ACKs.
3366 * TCP now provides proper feedback to the application when a
3367 connection has been successfully set up.
3369 * More comments have been added to the code. The code has also been
3370 somewhat cleaned up.
3372 (0.2) Initial public release.